Abrégé

The present disclosure provides a method and system for evaluating carbon sequestration of duckweed for a rice-duckweed symbiotic system, and a device. The method includes: after rice harvesting, collecting duckweed information in a rice-duckweed symbiotic system using spectrum scanning and laser-point cloud techniques, and determining a duckweed volume based on the duckweed information; determining a duckweed biomass in the rice-duckweed symbiotic system based on the duckweed volume; and estimating carbon sequestration of duckweed from the duckweed biomass using an artificial neural network algorithm, or estimating the carbon sequestration of duckweed from the duckweed biomass by a duckweed carbon sequestration estimation formula. The present disclosure may allow for flexible estimation of carbon sequestration of duckweed based on information such as agronomic management on rice, soil, and climate, and provide a good technical support for the management and application of duckweed in paddy fields.

Classes IPC  ?

• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01N 21/27 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en utilisant la détection photo-électrique

Abrégé

The partition monitoring method for concrete dam operation key parts provided by the disclosure firstly utilizes the extracted monitoring data time-frequency vector to partition the concrete dam key parts, and on this basis, obtains time series measurement data of different types of monitoring instruments with high temporal and spatial correlation, so as to establish a graph structure. Then, the dependence of time dimension and variable dimension of multivariate time series data is captured, and the relationship between further learning and representation of graph attention network is provided. Furthermore, the final feature representation of time series measured data is obtained, and finally the anomaly score is calculated through the final feature representation to detect anomalies. The complementary mutual verification of multiple measuring points of monitoring instruments with various types is realized. The structural integrity and spatial distribution law of concrete dams are fully embodied.

Classes IPC  ?

• E02B 7/08 - Barrages en maçonnerie
• G06F 17/40 - Acquisition et consignation de données

Abrégé

The present disclosure discloses a method of determining efficiency of increasing a soil carbon sink based on green manure returning to fields and a system thereof. The method includes: determining green manure biomass of a target farmland based on an unmanned aerial vehicle lidar technology during a fallow period of the target farmland before green manure is turned over; calculating carbon biomass of the target farmland based on the green manure biomass; calculating microbial soil carbon pump efficiency and mineral carbon pump efficiency after the green manure of the target farmland is turned over; and determining a soil carbon sink effect of turning over green manure on the target farmland according to the carbon biomass, the microbial soil carbon pump efficiency and the mineral carbon pump efficiency. The present disclosure realizes the quantitative calculation of efficiency of increasing the soil carbon sink of green manure.

Classes IPC  ?

• G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux
• G01N 33/24 - Matériaux de la terre

Abrégé

A bus bay with variable berths and an operation method therefor include: a bus stop with multiple fixed berths, a variable berth module, an in-station detection module, an off-station detection module, a motorway, and green belts; the bus stop, the variable berth module, the in-station detection module, and the off-station detection module are sequentially disposed side by side on a side of the motorway. The variable berth module includes an alternative berth and an alternative waiting area, which are surrounded by multiple sets of lifting columns; the in-station detection module and the off-station detection module are disposed in the green belts; a warning sign is fixed on a pole as belonging to the off-station detection module; the in-station detection module includes a control sub-module therein, the variable berth module, the in-station detection module, and the off-station detection module are connected with the control sub-module.

Classes IPC  ?

• E04H 1/12 - Petits bâtiments ou autres constructions pour occupation limitée, élevés en plein air ou aménagés à l'intérieur de bâtiments, p. ex. kiosques, abris pour arrêts d'autobus ou pour stations de distribution d'essence, toits pour quais de gare, guérites de gardien ou cabines de bains
• G08G 1/09 - Dispositions pour donner des instructions variables pour le trafic
• G08G 1/097 - Systèmes de surveillance de la commande du trafic, p. ex. en donnant l'alarme si deux rues se croisant ont des feux verts simultanément
• G08G 1/123 - Systèmes de commande du trafic pour véhicules routiers indiquant la position de véhicules, p. ex. de véhicules à horaire déterminé

Abrégé

An urban initial rainwater intelligent collection system and a method. According to the system, the pollutant concentration process and peak value of rainwater in the initial state of rainfall are predicted by means of an urban rainfall runoff pollution transmission model, an initial rainwater collection duration is determined by means of an initial rainwater collection method, and initial rainwater is collected by using initial rainwater collection devices, so as to achieve intelligent collection of the initial rainwater. For a built rainwater pipe network, only rainwater collection ports need to be modified, each initial rainwater collection device is connected to devices such as a rainwater port and a municipal sewage pipe in the municipal pipe network, newly-built rainwater pipe network supporting construction is carried out, and the present invention has the advantages of low cost, easy maintenance, good adaptability and high pollution collection efficiency.

Classes IPC  ?

• G01N 1/20 - Dispositifs pour prélever des échantillons à l'état liquide ou fluide pour matériau coulant ou s'éboulant
• E03F 5/10 - Réservoirs collecteursRéservoirs compensateurs pour la régulation du débitBassins d'accumulation

Abrégé

An ice-removing device taking energy saving into account in front of a propeller of a polar transportation ship, and a method for eliminating adverse disturbance. The ice-removing device comprises an ice-removing mechanism and a vibration reduction mechanism, wherein an input end of the ice-removing mechanism is connected to a ballast water tank of a ship, and a guide pipe (3) having a plurality of ice-removing nozzles (2) formed facing away from the advancing direction of the ship is provided at an output end of the ice-removing mechanism; the vibration reduction mechanism connects the ice-removing mechanism to a stern shaft sleeve (8) of the ship that is provided with a propeller (9), and the vibration reduction mechanism comprises a guide vane (1), a hydraulic vibration reduction unit (19), an upper vibration reduction unit and a lower vibration reduction unit; and the upper vibration reduction unit absorbs vibration in the direction of the ice-removing mechanism, the lower vibration reduction unit absorbs vibration generated when the propeller (9) rotates at a high speed, in addition, because the upper vibration reduction unit and the lower vibration reduction unit vibrate in opposite directions, the vibration of the upper vibration reduction unit and the vibration of the lower vibration reduction unit can cancel each other out, such that adverse disturbance to a flow field near the propeller (9) caused by vibration brought about by the ice-removing mechanism and the propeller (9) can be quickly eliminated.

Classes IPC  ?

• B63H 1/28 - Autres moyens pour améliorer le rendement des hélices
• B63B 35/08 - Brise-glace
• F16F 15/023 - Suppression des vibrations dans les systèmes non rotatifs, p. ex. dans des systèmes alternatifsSuppression des vibrations dans les systèmes rotatifs par l'utilisation d'organes ne se déplaçant pas avec le système rotatif utilisant des moyens fluides

Abrégé

A quick rebound and compression type oil cylinder packer, comprising: a central pipe (1), a hydraulic pushing mechanism (2), a deformation expansion hole sealing mechanism (3), an upper connecting pipe (4), and a lower connecting pipe (5). The hydraulic pushing mechanism and the deformation expansion hole sealing mechanism are both of a concentric circle structure with the central pipe and are sleeved on the central pipe; the upper connecting pipe and the lower connecting pipe are respectively connected to the upper end and the lower end of the central pipe and implement self-sealing; the upper connecting pipe and the lower connecting pipe are respectively used for connecting a high-temperature and high-pressure gas emission device and a pressure relief device; the hydraulic pushing mechanism is located at the lower end of the upper connecting pipe, and the deformation expansion hole sealing mechanism is arranged at the lower end of the hydraulic pushing mechanism; a protrusion is provided at a position where the central pipe is in contact with the deformation expansion hole sealing mechanism, and the diameter of the protrusion is the same as the diameter of a piston cushion block (3-1) of the deformation expansion hole sealing mechanism. According to the packer, the oil pressure energy is converted into mechanical energy by means of an oil cylinder, such that squeezing and pressing on a rubber pad is released, thereby achieving setting and quick rebound unsetting of the packer. Also disclosed is a hole sealing method based on the quick rebound and compression type oil cylinder packer.

Classes IPC  ?

• E21B 33/126 - PackersBouchons à cuvette ou jupe élastiques actionnées par pression d'un fluide
• F15B 15/14 - Dispositifs actionnés par fluides pour déplacer un organe d'une position à une autreTransmission associée à ces dispositifs caractérisés par la structure de l'ensemble moteur le moteur étant du type à cylindre droit
• F15B 15/20 - Autres parties constitutives
• E21B 33/128 - PackersBouchons avec un organe dilaté radialement par pression axiale

Abrégé

Disclosed in the present invention is a landslide volume calculation method fusing principal component analysis and voxel integration. The method comprises the steps of: collecting and registering bi-temporal point cloud data; establishing grids in a landslide area; calculating a normal vector of a point in each grid and a fitting planar function by using a principal component analysis method; calculating a volume variation of each grid by means of planar function integration; and calculating volume variations of all the grids, identifying an abnormal value by means of statistical analysis, and correcting the abnormal value. In the present invention, a landslide volume is efficiently and accurately calculated by using laser radar ranging technology and an acquired point cloud, constructing voxel units, fusing same with a principal component analysis method, and using voxel-based double integration to calculate volume changes inside voxels, thereby solving the problem of a volume result calculated by means of an average elevation being unreliable.

Classes IPC  ?

• G01B 11/00 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques
• G01S 17/88 - Systèmes lidar, spécialement adaptés pour des applications spécifiques
• G06F 17/10 - Opérations mathématiques complexes

Abrégé

A three-stage modularized convolutional neural network (CNN) called Stairnet is disclosed for efficient classification of concrete cracks in images. Unlike traditional CNNs which exhibit similar structural characteristics in each layer, Stairnet is composed of three distinct parts: stair1, stair2, and stair3, each possessing its own unique structural characteristics. Stair1 exclusively consists of convolution layers, while stair2 incorporates a greater number of layers. Stair3, on the other hand, utilizes larger expansion factors and kernel size. Stair1 and stair2 exhibit various variations that result in their modification alongside certain parameters of Stairnet. In contrast to traditional CNNs utilized for the classification of thousands of classes, Stairnet stands out with its smaller model size, faster training speed, and high accuracy in classifying concrete cracks.

Classes IPC  ?

• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
• G06T 7/00 - Analyse d'image
• G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux

Abrégé

Provided are antenna arrays based on three-dimensional special-shaped wave-absorbing structures by the disclosure, and includes an antenna array fixing plate and a plurality of antenna array units, where the antenna array units are sequentially fixed on the antenna array fixing plate; each of the plurality of antenna array units includes an antenna transmitting channel, two antenna receiving channels and a pair of three-dimensional special-shaped wave-absorbing structures; the antenna transmitting channel is used for transmitting antenna signals; the antenna receiving channels are used for receiving the antenna signals; and the three-dimensional special-shaped wave-absorbing structures are used for isolating antenna signals of antenna transmitting channels of other antenna array units.

Classes IPC  ?

• H01Q 17/00 - Dispositifs pour absorber les ondes rayonnées par une antenneCombinaisons de tels dispositifs avec des éléments ou systèmes d'antennes actives
• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure

Abrégé

Disclosed is a three-dimensional special-shaped wave-absorbing structure-based antenna array, which comprises: an antenna array fixing plate and multiple antenna array units, wherein the multiple antenna array units are sequentially fixed on the antenna array fixing plate. Each antenna array unit comprises an antenna transmitting channel, two antenna receiving channels and a pair of three-dimensional special-shaped wave-absorbing structures. The antenna transmitting channels are used for transmitting antenna signals. The antenna receiving channels are used for receiving the antenna signals. The three-dimensional special-shaped wave-absorbing structures are used for blocking antenna signals of antenna transmitting channels of other antenna array units. In the present invention, bottom edge structures of the special-shaped wave-absorbing structures are parallel to a feed center connecting direction of a transmitting antenna and a receiving antenna, so as to increase an isolation degree between test channels of a ground penetrating radar, enhance a ringing artifact of time-domain antenna radiation of the ground penetrating radar, improve environment interference resistance capabilities of the ground penetrating radar in a high-speed detection state, and enhance a signal-to-noise ratio, thereby achieving accurate detection and recognition.

Classes IPC  ?

• H01Q 1/52 - Moyens pour réduire le couplage entre les antennesMoyens pour réduire le couplage entre une antenne et une autre structure
• H01Q 17/00 - Dispositifs pour absorber les ondes rayonnées par une antenneCombinaisons de tels dispositifs avec des éléments ou systèmes d'antennes actives

Abrégé

An anti-cavitation damping composite metal structure for a flow passage component and a preparation method thereof are provided. The preparation method includes: cladding a gradient functional material layer by layer on a substrate of a flow passage component; forming periodic structures on a surface of each layer of the gradient functional material through etching by an ultrafast laser to absorb a part of an impact load energy caused by cavitation of the flow passage component, where the layers of the gradient functional material form a gradient coating with a toughness increasing layer by layer and a hardness decreasing layer by layer from bottom to top; and forming nano twins on a surface layer by a laser shock peening technique, and implanting a residual compressive stress to further improve anti-cavitation resistance of a surface.

Classes IPC  ?

• C23C 24/10 - Revêtement à partir de poudres inorganiques en utilisant la chaleur ou une pression et la chaleur avec formation d'une phase liquide intermédiaire dans la couche

Abrégé

The present disclosure provides a method for identifying modal parameters of engineering structures based on fast stochastic subspace identification, and relates to the field of structural modal parameters identification. The method includes the following steps: collecting responses; obtaining a unitary matrix by performing random projection on and QR decomposition of a matrix; obtaining a small matrix by projecting a Toeplitz matrix onto the unitary matrix; obtaining U, S, V matrices respectively by performing singular value decomposition of the small matrix; performing eigenvalue decomposition; and determining an order interval. According to the present disclosure, the small matrix is obtained through performing random projection on and QR decomposition of the traditional Toeplitz matrix, the dimensionality of the matrix by singular value decomposition is reduced and the computational efficiency of the matrix is improved.

Classes IPC  ?

• G06F 17/16 - Calcul de matrice ou de vecteur

Abrégé

Disclosed in the present invention is an application method for a hydroelectric-photovoltaic complementary scheduling graph of a clean energy base. The method comprises: dividing a hydroelectric-photovoltaic complementary scheduling graph into two scheduling sub-graphs according to a runoff guarantee rate and a critical guarantee rate within a scheduling period, wherein each scheduling sub-graph is divided into different scheduling areas by means of scheduling lines, and each scheduling area has hydroelectric output information; predicting the runoff within the scheduling period, and a predicted photovoltaic output; selecting a corresponding scheduling sub-graph according to the runoff guarantee rate, determining a hydroelectric output of a reservoir in the current month according to the water level of the reservoir at the beginning of the current month and a scheduling area where the water level is located, and obtaining the water level of the reservoir at the end of the current month by means of carrying out runoff calculation until the calculation of the hydroelectric outputs and water levels of the reservoir in all months within the scheduling period is completed; and obtaining a long-term hydroelectric output process and a long-term reservoir water level process in a clean energy base, and calculating a hydroelectric generation guarantee rate, thereby completing scheduling. By means of the present invention, the grid-connected consumption of photovoltaic power is also taken into consideration during a reservoir scheduling process, such that the consumption level of photovoltaic power is improved on the basis of guaranteeing a hydroelectric output.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs
• H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

A hydro-photovoltaic complementary operation chart application method for a clean energy base includes: divide a hydro-photovoltaic complementary operation chart into two sub-operation charts by runoff probability and critical probability; predict runoff and predicted photovoltaic output during the operation cycle, select the sub-operation chart by the runoff probability, determine hydropower output of a reservoir in the current month according to water level of the reservoir at the beginning of the current month and the operation area, and obtain the water level of the reservoir at the end of the current month through the runoff calculation; obtain long-term hydropower output process and reservoir level process in the clean energy base until the hydropower output and water level of the reservoir in all months of the operation cycle are calculated, and calculate hydropower generation probability to complete operation.

Classes IPC  ?

• H02J 3/38 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs

Abrégé

Disclosed in the present invention are an adaptive variable-parameter frequency modulation method and device for a doubly fed variable-speed pumped-storage unit. By means of the present invention, frequency modulation parameter optimization is performed on a unit under a plurality of typical operation conditions by taking a rotation speed and a power limitation as constraints; a frequency modulation parameter upper limit curve under different operation conditions is generated in advance; a rotation speed, a frequency deviation and a frequency deviation change rate of a doubly fed variable-speed pumped-storage unit are measured in real time during a frequency modulation process; and a corresponding frequency modulation parameter upper limit is acquired from the upper limit curve according to the rotation speed, and a symbol of the corresponding frequency modulation parameter upper limit is adjusted according to the frequency deviation change rate, so as to obtain frequency modulation parameters. Therefore, stable operation of a unit in different states can be ensured, and the frequency modulation capacity of the unit can be utilized to the greatest extent, such that the unit can have a good frequency modulation performance under different operation conditions and in different operation states.

Classes IPC  ?

• H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
• H02J 3/48 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante en phase
• H02J 3/50 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs contrôlant la répartition de la composante déphasée
• H02J 3/28 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie
• H02J 15/00 - Systèmes d'accumulation d'énergie électrique
• H02P 9/04 - Commande s'exerçant sur un moteur primaire non électrique et dépendant de la valeur d'une caractéristique électrique à la sortie de la génératrice
• G06N 3/00 - Agencements informatiques fondés sur des modèles biologiques
• H02P 101/10 - Adaptation particulière des dispositions pour la commande de génératrices pour turbines hydrauliques

Abrégé

A method for automatically generating a concrete dam defect image description on the basis of a graph attention network. The method comprises the following steps: 1) the extraction of global features and grid features, which involves respectively extracting global features and grid features of a defect image by using a multi-layer convolutional neural network; 2) constructing a grid feature interaction graph, and taking the global features and the grid features as node inputs; 3) updating the global features and the grid features, which involves updating and optimizing, by using a graph attention network, node information in the grid feature interaction graph constructed in step 2), so as to obtain updated global features and grid features; and 4) automatically generating an image description on the basis of a decoding module of Transformer and by using a sequence of the updated global features and grid features.

Classes IPC  ?

• G06V 10/46 - Descripteurs pour la forme, descripteurs liés au contour ou aux points, p. ex. transformation de caractéristiques visuelles invariante à l’échelle [SIFT] ou sacs de mots [BoW]Caractéristiques régionales saillantes

Abrégé

Water conservancy construction sewage treatment mechanism, including a support mounting cylinder, where a variable-diameter sedimentation cylinder is arranged at one end of the support mounting cylinder, one half of the cylinder wall of the support mounting cylinder is a thin wall and the other half is a thick wall, and the thin wall and the thick wall are disposed oppositely. The water conservancy construction sewage treatment mechanism also includes: a variable-diameter diversion cylinder, which is arranged on the thin wall at the other end of the support mounting cylinder; several displacement diversion modules, which are arranged on the thick wall of the support mounting cylinder and include guide displacement structures and combined diversion structures; and a magnetic attraction displacement adjusting structure, which is arranged on the outer side of the thick wall of the support mounting cylinder and is matched with the guide displacement structures and the combined diversion structures.

Classes IPC  ?

• B01D 21/24 - Mécanismes d'alimentation ou d'évacuation pour bacs de décantation
• B01D 21/00 - Séparation par sédimentation de particules solides en suspension dans des liquides
• C02F 9/20 - Dispositifs de traitement en plusieurs étapes de petite taille portables ou amovibles, p. ex. systèmes de purification de l'eau au point d'utilisation ou pour un laboratoire

Abrégé

An automatic concrete dam defect image description generation method based on graph attention network, including: 1) extract the local grid features and whole image features of the defect image and conduct image coding by using multi-layer convolutional neural network; 2) construct the grid feature interaction graph, and fuse and encode the grid visual features and global image features of the defect image; 3) update and optimize the global and local features through the graph attention network, and fully utilize the improved visual features for defect description. The invention constructs the grid feature interaction graph, updates the node information by using the graph attention network, and realizes the feature extraction task as the graph node classification task. The invention can capture the global image information of the defect image and the potential interaction of local grid features, and the generated description text can accurately and coherently describe the defect information.

Classes IPC  ?

• G06F 40/40 - Traitement ou traduction du langage naturel
• G06T 7/00 - Analyse d'image
• G06V 10/42 - Extraction de caractéristiques globales par l’analyse du motif entier, p. ex. utilisant des transformations dans le domaine de fréquence ou d’autocorrélation
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”

Abrégé

Disclosed is an intelligent recognition method for a time sequence image of a concrete dam defect. The method includes: extracting a feature sequence of the time sequence image containing the concrete dam defect; matching a located defect with a real defect by using an objective function; adding a loss term based on a tight sensing intersection-over-union to a loss function of a model so as to pay attention to integrity of a defect sequence and improve accuracy; and extracting a defect feature and recognizing a defect type after completing defect location. According to the present disclosure, the time sequence image of the concrete dam defect is detected effectively, so that a defect in a long image sequence can be located and the defect type can be recognized accurately.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 5/50 - Amélioration ou restauration d'image utilisant plusieurs images, p. ex. moyenne ou soustraction
• G06V 10/44 - Extraction de caractéristiques locales par analyse des parties du motif, p. ex. par détection d’arêtes, de contours, de boucles, d’angles, de barres ou d’intersectionsAnalyse de connectivité, p. ex. de composantes connectées

Abrégé

Disclosed is an optimal scheduling method for peak regulation of a cascade hydro-photovoltaic complementary power generation system. The method includes: establishing an objective function of optimal scheduling for peak regulation of the cascade hydro-photovoltaic complementary power generation system; establishing a photovoltaic power station output constraint condition considering uncertainty; optimizing a mixed integer linear model by performing linear processing on the constraint condition; and obtaining a scheduling solution by solving the mixed integer linear model. According to the present disclosure, a unit commitment of a hydro-power station and an operational solution of a reservoir are considered, so that photovoltaic output can be consumed by fully using a characteristic that the hydro-power unit is easy to regulate, and a demand for peak regulation of a power grid can be satisfied.

Classes IPC  ?

• G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques

Abrégé

A time-series image description method for dam defects based on local self-attention mechanism is provided, including: performing frame sampling on an input time-series image of dam defect, extracting a feature sequence using a convolutional neural network and using the sequence as an input to a self-attention encoder, where the encoder includes a Transformer network based on a variable self-attention mechanism that dynamically establishes contextual feature relations for each frame; generating description text using a long short term memory (LSTM) network based on a local attention mechanism to enable each word predicted to be feature related to an image frame, improving text generation accuracy by establishing a contextual dependency between image and text. A dynamic mechanism is added to the present application for calculating the global self-attention of image frames, and LSTM networks with added local attention directly establish the correspondence between image and text modal data.

Classes IPC  ?

• G06V 10/77 - Traitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
• G06T 7/174 - DécoupageDétection de bords impliquant l'utilisation de plusieurs images
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06T 7/00 - Analyse d'image

Abrégé

A hail weather identification and classification method based on a multi-channel deep residual shrinkage network, comprising the following steps: acquiring strength data of microwave signals in hailing weather and non-hailing weather, and pre-processing the data (S1); performing multivariate synchrosqueezing transform on the preprocessed data, extracting shallow features of the signals, converting the signals into a two-dimensional time-frequency image, and adjusting the size of the obtained time-frequency image (S2); constructing a training set and a test set, performing oversampling on hail sample data in the training set by means of a BN-SMOTE algorithm, balancing the sample data, and expanding the data set (S3); inputting the expanded training set into a multi-channel deep residual shrinkage network, performing multi-scale extraction on deep features, removing noise, and outputting a classification result (S4); training and optimizing a model, and testing the model performance by means of the test set (S5); and subjecting microwave signal data under test to multivariate synchrosqueezing transform, and then inputting same into the trained model to implement hail weather identification and level classification (S6). Effective identification and classification of hail-related microwave signals in a low signal-to-noise ratio condition can be implemented, and the accuracy of hail weather level monitoring is improved.

Classes IPC  ?

• G01W 1/10 - Dispositifs pour la prévision des conditions météorologiques
• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

Disclosed is a concrete dam defect time sequence image intelligent identification method, comprising: using a double-flow network to extract a feature sequence of a time sequence image containing concrete dam defects, and adding a time dimension self-attention mechanism to obtain a global context feature relationship; in the training process of the model, using a target function based on a distance intersection-over-union ratio to match a positioning defect and a real defect, and calculating a time sequence position relationship of the defect to accelerate model converge; adding a loss item based on tight perception intersection-over-union ratio into the model loss function, so as to focus on the integrity of the defect sequence to improve accuracy; after defect positioning is completed, using a convolutional neural network based on 2D time sequence difference to extract defect features and identify a defect type. In the present invention, a dam defect time sequence image is effectively detected, the defect position in a long image sequence can be positioned, and the defect type can be accurately identified. The solution has high identification precision and good convergence performance in a task of identifying a dam defect time sequence image.

Classes IPC  ?

• G06T 7/00 - Analyse d'image
• G06T 7/33 - Détermination des paramètres de transformation pour l'alignement des images, c.-à-d. recalage des images utilisant des procédés basés sur les caractéristiques
• G06V 10/22 - Prétraitement de l’image par la sélection d’une région spécifique contenant ou référençant une formeLocalisation ou traitement de régions spécifiques visant à guider la détection ou la reconnaissance
• G06V 10/62 - Extraction de caractéristiques d’images ou de vidéos relative à une dimension temporelle, p. ex. extraction de caractéristiques axées sur le tempsSuivi de modèle
• G06V 10/764 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant la classification, p. ex. des objets vidéo
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

Disclosed in the present invention is a peak regulation optimization scheduling method for a cascaded hydro-photovoltaic complementary power generation system. The method comprises: establishing an objective function for peak regulation optimization scheduling of a cascaded hydro-photovoltaic complementary power generation system, the objective function involving taking the minimization of the maximum value of the residual load of a receiving-end power grid within a scheduling period as the objective function; establishing a cascaded hydropower constraint condition in which unit commitment is taken into consideration, and a photovoltaic power station output constraint condition in which uncertainty is taken into consideration; performing linearization processing on the constraint conditions, and according to the objective function and the constraint conditions which have been subjected to linearization processing, constructing a mixed integer linear model for the peak regulation optimization scheduling of the cascaded hydro-photovoltaic complementary power generation system; and solving the mixed integer linear model for the peak regulation optimization scheduling of the cascaded hydro-photovoltaic complementary power generation system, so as to obtain a scheduling scheme for the cascaded hydro-photovoltaic complementary power generation system. The present invention takes a unit commitment condition and a reservoir operation scheme of a hydropower station into consideration, can consume the photovoltaic output by fully utilizing the characteristic of a hydropower generating unit being easy to adjust, can meet the peak regulation requirement of a power grid, and has strong practicability.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

Disclosed in the present invention is a dam defect time-sequence image description method based on a local self-attention mechanism. The method comprises: performing frame sampling on an inputted dam defect time-sequence image, using a convolutional neural network to extract a feature sequence, and taking the sequence as an input of a self-attention encoder, wherein the encoder is formed of a transformer network based on a variable self-attention mechanism, and can dynamically establish a context feature relationship of each frame; and using an LSTM network based on a local attention mechanism to generate description text, so that each predicted word can establish a feature relationship with an image frame, and context dependency between the image and the text is established to improve the generation accuracy of the text. In the present invention, a dynamic mechanism is added on the basis of calculating global self-attention of an image frame, such that slow model convergence caused by an excessively large parameter quantity is avoided. By means of adding a local-attention LSTM network, a correspondence between two modes of data, i.e. an image and text, can be directly established, and thus generated description text is more accurate and contains more comprehensive information.

Classes IPC  ?

• G06V 10/774 - Génération d'ensembles de motifs de formationTraitement des caractéristiques d’images ou de vidéos dans les espaces de caractéristiquesDispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant l’intégration et la réduction de données, p. ex. analyse en composantes principales [PCA] ou analyse en composantes indépendantes [ ICA] ou cartes auto-organisatrices [SOM]Séparation aveugle de source méthodes de Bootstrap, p. ex. "bagging” ou “boosting”
• G06V 10/82 - Dispositions pour la reconnaissance ou la compréhension d’images ou de vidéos utilisant la reconnaissance de formes ou l’apprentissage automatique utilisant les réseaux neuronaux
• G06N 3/04 - Architecture, p. ex. topologie d'interconnexion
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

A cycle slip detection method applied to a global navigation satellite system (GNSS) and a cycle slip repair method applied to a GNSS. The cycle slip detection method comprises: according to carrier phase observation values of s2 common-view satellites that are received by a monitoring station at an epoch t, determining s2 carrier phase three-difference observation values of the monitoring station at the epoch t, and according to pseudo-range observation values of the s2 common-view satellites that are received by the monitoring station at the epoch t, determining s2 pseudo-range three-difference observation values of the monitoring station at the epoch t (101); substituting, into a three-difference observation equation based on a geometric GB model, the s2 carrier phase three-difference observation values and the s2 pseudo-range three-difference observation values that correspond to the epoch t (102); and solving 2s2 solving formulas on the basis of the s2 carrier phase three-difference observation values and the S2 pseudo-range three-difference observation values, so as to obtain integer cycle slip values of the s2 common-view satellites at the epoch t, and if any integer cycle slip value satisfies a preset condition, determining that the common-view satellite corresponding to the integer cycle slip value has a cycle slip during the observation process (103). The present invention is suitable for cycle slip detection in a complex environment, such that a cycle slip value with higher precision is obtained.

Classes IPC  ?

• G01S 19/37 - Détails de matériel ou de logiciel de la chaîne de traitement des signaux
• G01S 19/44 - Résolution de l'ambiguïté de la phase de la porteuseAmbiguïté flottanteProcédé LAMBDA [compensation par les moindres carrés de la décorrélation de l'ambiguïté]

Abrégé

A structural dynamic parameter identification method aided by a rPCK surrogate model comprises the following steps. Establish a finite element model that roughly reflects the structural system to be analyzed. Establish the dynamic parameter space sample set. The structural system response space sample set driven by the dynamic parameter space sample set is established by using the probabilistic finite element analysis. The robust polynomial Chaos Kriging surrogate model is obtained by mapping the dynamic parameter space sample set to the structural system response space sample set. The measured structural system response is used to drive the rPCK surrogate model, and then Bayesian inference is used to identify the structural dynamic parameters. The mean value of Bayesian posterior estimation is used as the estimated value of structural dynamic parameters. The proposed method creates conditions for establishing a high-fidelity finite element model of the actual engineering structural system.

Classes IPC  ?

• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]
• G06F 30/13 - Conception architecturale, p. ex. conception architecturale assistée par ordinateur [CAAO] relative à la conception de bâtiments, de ponts, de paysages, d’usines ou de routes
• G06F 17/13 - Opérations mathématiques complexes pour la résolution d'équations d'équations différentielles

Abrégé

A saturation device and method for torsional shear tests of a large-particle-size non-cohesive soil hollow cylinder. The saturation device comprises a hollow cylindrical torsion-shear apparatus (1), wherein a test sample (4) is mounted in the hollow cylindrical torsion-shear apparatus (1); the interior and the exterior of the test sample (4) respectively form an inner pressure chamber and an outer pressure chamber; the top end of the test sample (4) communicates with a first sealing box (10) by means of a first pipeline (9) with a valve; the top end of the first sealing box (10) is connected to a first vacuum pump (11) by means of a second pipeline with a valve; the bottom end of the test sample (4) communicates with a second sealing box (13) by means of a third pipeline (12) with a valve; the top end of the second sealing box (13) is connected to a second vacuum pump (14) by means of a fourth pipeline with a valve; the bottom end of the outer pressure chamber (8) is connected to a first confining pressure mechanism by means of a fifth pipeline (15) with a valve; and the bottom end of the inner pressure chamber (7) is connected to a second confining pressure mechanism by means of a seventh pipeline (18) with a valve. There is a relatively small difference between vacuum degrees at two ends of the test sample (4), such that the effective confining pressure distribution at different heights in the test sample (4) can be controlled to be relatively uniform, and thus the effect of a saturation process on a subsequent test result can be avoided.

Classes IPC  ?

• G01N 3/22 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de torsion
• G01N 3/24 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts permanents de cisaillement

Abrégé

A method for calibrating parameters of a hydrology forecasting model based on a deep reinforcement learning includes selecting according to basin characteristics, and the parameters and parameter value ranges to be calibrated by the model are determined. The method includes a calibrating the parameters of the hydrology forecasting model is established, and three elements of the reinforcement learning, that is, a state space, an action space and a reward function are determined. The method includes a deep reinforcement learning method DQN is applied to optimize the parameters to be calibrated by the hydrology forecasting model. In the present disclosure, by setting a stride length of the action value for the deep reinforcement learning model, an accuracy finally optimized by the calibration parameters can be freely controlled, and a DQN algorithm is adopted to search the entire space for the calibration parameters to ensure the optimality for optimizing the calibrated parameters.

Classes IPC  ?

• G06N 3/092 - Apprentissage par renforcement

Abrégé

A method for optimizing a reservoir operation for multiple objectives based on a GCN and a NSGA-II algorithm. The method includes collecting relevant data for reservoir flood-control operation and establishing a multi-objective optimization model for the flood control. An initial population is obtained. Grouping individuals by an encoding operation and the grouped classifications are nodes of the GCN, and mapping parent-child relationships obtained by crossover and mutation operations as edges between the nodes in the GCN. A preliminary Pareto frontier is obtained, abscissas of the preliminary Pareto frontier are grouped and labeled, and a GCN model is trained by using the grouping labels and the graphic structure obtained in Step 2. The nodes in the graphic structure are classified by using the trained GCN model, and a uniformity of the Pareto frontier is adjusted. A set of non-inferior schemes of the multi-objective optimization problem for the reservoir operation is output.

Classes IPC  ?

• G06N 3/086 - Méthodes d'apprentissage en utilisant les algorithmes évolutionnaires, p. ex. les algorithmes génétiques ou la programmation génétique
• G06Q 50/06 - Fourniture d’énergie ou d’eau
• G06N 3/0464 - Réseaux convolutifs [CNN, ConvNet]

Abrégé

The present utility model relates to a multi-operation mode combined-type faucet. The interior of the faucet body further comprises: a water outlet hole, an operation rod, a first translation gear, a second translation gear, a rotary shift disc, a first damping working face, a second damping working face, a lead screw structure, a spring assembly and a water baffle. An operation device is fixedly connected with a first end of the operation rod via the first translation gear, a second end of the operation rod is connected to the second translation gear, the second translation gear is connected to the rotary shift disc, and the damping working face is vertically arranged on the edge of the bottom face of the rotary shift disc. The damping working face is connected to the first end of the lead screw structure along with the rotation of the rotary shift disc, and the lead screw structure is used for converting the rotating potential energy into horizontal kinetic energy so as to push the water baffle to move. A first end of the spring assembly is connected to the water baffle, and a second end of the spring assembly is in contact connection with the inner wall of the faucet body. The present utility model can accurately control the water outlet flow, and avoid the waste of water resources.

Classes IPC  ?

• F16K 31/53 - Moyens mécaniques d'actionnement à engrenage
• F16K 31/50 - Moyens mécaniques d'actionnement à tige-guide filetée

Abrégé

Discloses is a research method for a diversion ratio and a pollutant transport flux ratio of a braided river and an evolution rule of the both, comprising the steps of: surveying hydrological information of a drainage basin where a braided river is located; calculating the river discharge of the drainage basin under different assurance rates; constructing a water environment mathematical model; analyzing a diversion ratio rule of the braided river; analyzing a pollutant transport flux ratio rule of the braided river; and analyzing an evolution rule of the diversion ratio and the pollutant transport flux ratio of the braided river. According to the present invention, in view of the current situation of insufficient research on pollutant transport flux ratios, and evolution rules of diversion ratios and pollutant transport flux ratios of braided rivers, a research method for analyzing a diversion ratio and a pollutant transport flux ratio of a braided river and an evolution rule of the both is provided, which provides a scientific basis for formulating environmental management policies such as flood control and drainage, ecological water supplement, total pollutant amount control, water environment protection, and water ecological restoration.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
• G06Q 50/26 - Services gouvernementaux ou services publics
• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06F 113/08 - Fluides

Abrégé

A method for extracting a dam emergency event based on a dual attention mechanism is provided. The method includes: performing data preprocessing, building a dependency graph, building a dual attention network, and filling a document-level argument. The performing data preprocessing includes labeling a dam emergency corpus and encoding sentences. Building a dependency graph includes assisting a model to mine a syntactic relation based on a dependency. Building a dual attention network includes weighing and fusing an attention network based on a graph transformer network (GTN) and capturing key semantic information in the sentence. Filling a document-level argument includes filling a document-level argument by detecting a key sentence and ordering a semantic similarity. The method introduces a dependency and overcomes the long-range dependency problem based on the dual attention mechanism, thus achieving high identification accuracy and reducing a lot of labor costs.

Classes IPC  ?

• G06Q 10/20 - Administration de la réparation ou de la maintenance des produits
• G06N 3/08 - Méthodes d'apprentissage
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

A three-level grid multi-scale finite element method for simulating groundwater flow in heterogeneous aquifers is proposed in present disclosure. The three-level grid refers to dividing the study region into coarse grid elements, then dividing each coarse grid element into medium grid elements, and finally dividing each medium grid element into fine grid elements, thereby improving the coarse-scale basis function construction method of the multi-scale finite element method. The new method of constructing a coarse-scale basis function by using the multi-scale finite element method itself instead of the finite element method is provided, constructing medium-scale basis functions on local medium grid elements, and using the medium-scale basis functions to construct a coarse-scale basis function in each coarse element, which can significantly improve the construction efficiency of the coarse-scale basis function.

Classes IPC  ?

• G06F 30/23 - Optimisation, vérification ou simulation de l’objet conçu utilisant les méthodes des éléments finis [MEF] ou les méthodes à différences finies [MDF]

Abrégé

A pile-side lateral static load device includes a jack system, a liftable jack cart, a loading jack fixing system, and a loading system. The jack system includes a jack body. The jack system is installed on the liftable jack cart through the loading jack fixing system. The loading system is installed on the loading jack fixing system, and the loading system includes counter-pressure loading systems and counter-tension loading systems. The pile-side lateral static load device has a simple structure, is convenient to install and operate, and can complete lateral loading and in-situ tests under different pile diameters, different tonnages and different precisions, so as to facilitate a simulation test of in-situ lateral loading of a pile.

Classes IPC  ?

• E02D 7/20 - Mise en place par pression ou traction
• B66F 3/44 - Dispositifs, p. ex. crics, adaptés pour lever des charges d'un mouvement continu avec moteurs électriques d'entraînement incorporés
• E02D 33/00 - Test des fondations

Abrégé

A method for determining a contribution rate of pollution load in a water quality assessment section of an annular river network system based on water quantity constitute comprises the following steps: defining all water quantity components (rainfall, pollution discharge and water diversion) according to a water quantity source condition of a river network water system in a research region; calculating a water quantity ratio of each water quantity component in each water quality assessment section; collecting flow rate of point source pollution and corresponding pollutant discharge amount, calculating a water quantity weighted average concentration of all point source pollutants, and calculating a runoff rate and a pollution load of all land use types and an average concentration of non-point source pollutants by utilizing a hydrological model and a pollution load model; and calculating the contribution rate of pollution load in the water quality assessment section.

Classes IPC  ?

• G06Q 50/26 - Services gouvernementaux ou services publics
• G01N 33/18 - Eau

Abrégé

The invention discloses a biological water-quality detection method using said obstructive multi-module biological water-quality detection device. This device includes an obstruction index-selecting device and a water-quality testing device, wherein the obstruction index-selecting device is used to select a qualified or valid stepped obstruction level combination, the water-quality testing device detects the water-quality of the water body to be tested depending on the behavior at each obstruction in the valid obstruction level combination after injecting indicator organisms into the water body to be tested. The relationship between the degree of water pollution and the distribution area of indicator organisms is established and the distribution area of indicator organisms is counted in this method based on the difference between the behaviors of indicator organisms in the clean water body and the polluted water body count, so as to determine the degree of water pollution.

Classes IPC  ?

• G01N 33/18 - Eau

Abrégé

A method for determining flow velocity distribution in the roughness sublayer is provided, which uses the experimental device that includes a variable-slope circulating flume system and a flow-measuring system, the variable-slope circulating flume system is used to study flow in the roughness sublayer, and the flow-measuring system is used to measure flow velocity in each zone in the flume. In the variable-slope circulating flume, the method according to the invention uses cylindrical aluminum rods to simulate large-scale roughness elements, and the submergence, the average bulk flow velocity and the distribution density of roughness elements are changed.

Classes IPC  ?

• G01M 10/00 - Tests hydrodynamiquesAménagements dans ou sur les bassins de tests des navires ou les tunnels hydrauliques

Abrégé

The present invention relates to a river model test system and test method for microflorae in river confluences, branches and bends. The test system comprises a riverway water tank, wherein the bottom of the riverway water tank is paved with a river substrate, which is taken from a test riverway, and the riverway water tank comprises a main stream riverway and several tributary riverways. An upstream end of each tributary riverway is provided with an energy dissipation groove, and a water outlet of the main stream riverway is provided with a triangular weir; and river water converges in the main stream riverway from the tributary riverways at an average rate after passing through the energy dissipation grooves, and then flows out of the water outlet of the main stream riverway, thereby providing a riverway simulation environment for the river substrate. The test method is to use the system to obtain microorganisms in the river water in the river substrate, and then perform subsequent tests. A river simulation test method is combined with a microbiological degradation pollutant test method, and a water inlet and a water outlet are interchanged, thus not only performing tests on substrate microflorae in a river confluence region, but also performing tests on substrate microorganisms in branched riverways and bent riverways, such that the present invention is applicable to microbiological tests of a plurality of riverways.

Classes IPC  ?

• E02B 1/02 - Modèles hydrauliques

Abrégé

Disclosed in the present invention are an ecological floating bed and method for river purification. The ecological floating bed comprises a floating bed body and supporting facilities. Each day-night cycle is an operation period. When in light during the day, aquatic plants in the floating bed perform photosynthesis to release oxygen and degrade some pollutants, and a bio-filler adsorbs pollutants in a river. A composite photocatalyst of carbon nitride and tungsten oxide generates active free radicals to remove phthalate pollutants by means of oxidation. Moreover, the photocatalyst stores some photogenerated electrons for subsequent use. When there is no light at night, the bio-filler continues adsorbing pollutants in the river, and the composite photocatalyst of carbon nitride and tungsten oxide releases the electrons to improve the microbial denitrification efficiency of the bio-filler. The device disclosed in the present invention is green and environment-friendly, can stably and continuously operate day and night, improves the solar energy utilization efficiency, implements synergistic denitrification by microorganisms and aquatic plants, promotes removal of phthalates and nitrates in river water, improves the river water purification efficiency, and is free of secondary pollution and stable in treatment effect.

Classes IPC  ?

• C02F 3/32 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les animaux ou végétaux utilisés, p. ex. les algues
• C02F 3/34 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les micro-organismes utilisés
• C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
• C02F 1/30 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par irradiation

Abrégé

The present invention relates to an adaptive flow rate test simulation system and method for fishes. In the system, a water intake side in a test water tank is divided into a plurality of channels by partition plates; each channel is connected to a branch water intake pipe; upstream ends of all branch water intake pipes are collectively connected to a main water intake pipe; the main water intake pipe is connected to a water pump; each branch water intake pipe is respectively provided with a control valve and a flowmeter; and an upstream flow-stabilizing grille and a downstream flow-stabilizing grille are arranged in the test water tank in the direction of blocking a water flow, wherein the upstream flow-stabilizing grille divides the channels into buffer channels and test channels. The method comprises: after the flow rates of test channels are set, putting a plurality of fish into the channels, and after the fish are dispersed and swim to each test channel, recording the number of fish in each test channel; using bait to induce the fish to swim out of the test channel, and after the fish are dispersed and swim to each test channel, recording the number of fish in each test channel again; and repeating the above operation a plurality of times, so as to obtain an adaptive flow rate of the fish. By means of the present invention, adaptive flow rates of different fishes and of fish of different months of age can be obtained by means of tests.

Classes IPC  ?

• G01N 33/00 - Recherche ou analyse des matériaux par des méthodes spécifiques non couvertes par les groupes
• G01P 5/00 - Mesure de la vitesse des fluides, p. ex. d'un courant atmosphériqueMesure de la vitesse de corps, p. ex. navires, aéronefs, par rapport à des fluides
• E02B 1/02 - Modèles hydrauliques

Abrégé

A cross attention-based dam defect image-text cross-modal retrieval method, comprising: 1) text-image feature extraction; 2) text-image interactive feature extraction: inputting image feature maps and a text feature vector to a cross attention module, and extracting an interactive feature matrix of each image feature map and an entire text; 3) text-image feature map global similarity calculation: performing calculation on interactive feature matrix by using cosine similarity to obtain a similar matrix, and then respectively calculating global similarity starting from a text retrieval task and an image retrieval task, wherein in the text retrieval task, a higher weight is assigned to an image feature map with higher quality during global similarity calculation; and 4) loss function minimization for training result optimization: using an improved hinge triplet ranking function as a loss function, and minimizing the ranking function to optimize a training result. The method achieves a good retrieval effect in a dam image-based text retrieval task and dam defect descriptive text-based image retrieval task.

Classes IPC  ?

• G06F 16/58 - Recherche caractérisée par l’utilisation de métadonnées, p. ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement
• G06F 16/38 - Recherche caractérisée par l’utilisation de métadonnées, p. ex. de métadonnées ne provenant pas du contenu ou de métadonnées générées manuellement

Abrégé

A control method of a drill jumbo is provided. The drill jumbo includes a pre-splitting arm, a drill arm, and a chamber. The pre-splitting arm includes a positioning device, a fixing buckle, a longer rod, an electric telescopic rod, and a water injection opening. The chamber includes a constant pressure valve, an excitation circuit, and a port. A computer controls the positioning device to perform positioning, afterwards, the fixing buckle is opened, the telescopic rod is started, the longer rod is jacked into a position in the hole, and oil is injected into a hydraulic expansion capsule. After blocking of the hole is completed, water is injected into the water injection opening. The port is opened to inject a mixed-phase fluid. The port is closed, the excitation circuit is started, and after a pressure rises to a set value, the constant pressure valve is opened.

Classes IPC  ?

• E21C 37/14 - Autres procédés ou dispositifs d'abattage avec ou sans chargement en employant une pression hydraulique ou pneumatique dans un trou foré au moyen d'air comprimé par tir au gazAutres procédés ou dispositifs d'abattage avec ou sans chargement en employant une pression hydraulique ou pneumatique dans un trou foré par gazéification de liquides
• E21B 7/02 - Appareils de forage caractérisés par des moyens de transport terrestre, p. ex. montés sur des patins ou des roues
• E21D 9/00 - Tunnels ou galeries, avec ou sans revêtementsProcédés ou appareils pour leur exécutionTracé des tunnels ou des galeries

Abrégé

2 foamed cement-based material; step S4: selecting foaming agents of different types and different concentrations and foam stabilizers of different types and different concentrations to prepare slurries, subjecting the slurries to slurry performance tests, and selecting the optimal ones; step S5: optimizing initial water-to-cement ratio and foam-to-slurry ratio parameters; and step S6: optimizing a gas-filling volume parameter (water pump speed).

Classes IPC  ?

• C04B 38/10 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation en utilisant des agents moussants
• C04B 24/10 - Hydrates de carbone ou leurs dérivés
• C04B 24/20 - Composés aromatiques sulfonés
• C04B 28/02 - Compositions pour mortiers, béton ou pierre artificielle, contenant des liants inorganiques ou contenant le produit de réaction d'un liant inorganique et d'un liant organique, p. ex. contenant des ciments de polycarboxylates contenant des ciments hydrauliques autres que ceux de sulfate de calcium
• B01F 23/235 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés pour la fabrication de mousse
• B28C 7/04 - Alimentation ou dosage des ingrédients
• B01F 101/28 - Mélange d'ingrédients de ciment, de mortier, d'argile, de plâtre ou de béton
• C04B 103/48 - Stabilisateurs de mousse
• C04B 103/42 - Formateurs de pores
• C04B 111/40 - Matériaux poreux ou légers

Abrégé

Disclosed in the present invention is a preparation method for a sediment covering material for eutrophicated rivers and lakes, comprising the following steps: sieving river and lake sediments, and drying same to obtain dried river and lake sediments; placing the dried river and lake sediments in an atmosphere furnace, and performing high temperature pyrolysis in a nitrogen or argon protection gas atmosphere to obtain sediment-based biochar; and placing the sediment-based biochar into a pressure-resistant closed container, pumping in pure oxygen to carry out oxygen loading, enabling the sediment-based biochar to reach oxygen supersaturation, and finally taking out the sediment-based biochar for grinding. Also disclosed in the present invention is a sediment covering material for eutrophicated rivers and lakes, which is prepared by means of the preparation method for the sediment covering material for eutrophicated rivers and lakes. Finally, disclosed in the present invention is a use method for the sediment covering material for eutrophicated rivers and lakes. The sediment covering material for eutrophicated rivers and lakes, and the preparation method and the use method therefor provided in the present invention have the advantages of low cost, convenient use, and environmental compatibility, and the restoration of a river and lake ecosystem is accelerated.

Classes IPC  ?

• C01B 32/05 - Préparation ou purification du carbone non couvertes par les groupes , , ,
• C02F 11/00 - Traitement des boues d'égoutDispositifs à cet effet
• C02F 7/00 - Aération des plans d'eau
• C02F 3/32 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les animaux ou végétaux utilisés, p. ex. les algues
• C02F 11/10 - Traitement des boues d'égoutDispositifs à cet effet par pyrolyse

Abrégé

Disclosed in the present invention is a method for parameter calibration of a hydrological forecasting model based on deep reinforcement learning, the method comprising: selecting a suitable hydrological forecasting model according to drainage basin characteristics, and determining model parameters for calibration and the range of parameter values; establishing a reinforcement learning model for parameter calibration of the hydrological forecasting model, and determining three elements for reinforcement learning, i.e. a state space, an action space, and a reward function; and optimizing the parameters, for calibration, of the hydrological forecasting model by applying a deep reinforcement learning method, i.e. DQN. By means of the present invention, the accuracy of final optimization of parameters for calibration can be freely controlled by setting the steps of action values for a deep reinforcement learning model, and a DQN algorithm is used to perform a search in the entire space of the parameters for calibration, so as to ensure the optimality of the optimization of the parameters for calibration, thereby preventing the problem of a modern intelligent algorithm being premature and thus being easily trapped in a local optima.

Classes IPC  ?

• G06F 30/27 - Optimisation, vérification ou simulation de l’objet conçu utilisant l’apprentissage automatique, p. ex. l’intelligence artificielle, les réseaux neuronaux, les machines à support de vecteur [MSV] ou l’apprentissage d’un modèle

Abrégé

A reservoir scheduling multi-objective optimization method based on a GCN and an NSGA-II. The method comprises: collecting flood control scheduling related data of a reservoir, and establishing a flood control multi-objective optimization model; obtaining a primary population by using an NSGA-II, grouping individuals by means of an encoding operation, taking grouped categories as nodes of a GCN, and mapping, to an edge between the GCN nodes, a parent-child relationship obtained by means of crossing and mutation operations; obtaining a preliminary Pareto front edge by using the NSGA-II, performing grouping tagging on an abscissa thereof, and then training a GCN model by using a grouping tag and a graph structure obtained in step two; classifying nodes of the graph structure by using the trained GCN model, and then adjusting the uniformity of the Pareto front edge by using the NSGA-II; and outputting a non-inferior solution set of a reservoir scheduling multi-objective optimization problem according to the Pareto front edge adjusted by means of the NSGA-II. The method can be widely applied to multi-objective reservoir optimal scheduling, and by means of the method, a reservoir optimal scheduling scheme meeting all objectives can be quickly provided.

Classes IPC  ?

• G06N 3/00 - Agencements informatiques fondés sur des modèles biologiques

Abrégé

Disclosed is a temporal convolutional network-based flood control scheduling solution optimum selection method, comprising: establishing an evaluation indicator system for reservoir group flood control scheduling solutions; constructing a time series evaluation indicator matrix of comprehensive evaluation indictors and time series, the matrix serving as an input for a temporal convolutional network, and calculating a comprehensive score of a flood control scheduling solution training sample on the basis of the fuzzy set theory and an improved entropy weight method; determining the structure of the temporal convolutional network; employing a loss function combining a mean squared error and a Nash efficiency coefficient to train the temporal convolutional network; and inputting the time series evaluation indicator matrix for the flood control scheduling solutions into the temporal convolutional network to produce comprehensive evaluation values of solutions, of which the one having the optimum comprehensive evaluation value being the optimum solution for reservoir group flood control scheduling. The present invention takes into full consideration a time-varying flood control scheduling solution optimum selection process, reduces to the greatest extent the number of complex model parameters, and provides a powerful tool for reservoir group flood control scheduling solution decision-making and optimum selection.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

The present disclosure provides a method for numerical simulation of reactive transport during CO2+O2 in-situ leaching of uranium at a sandstone-type uranium deposit. Unlike the traditional method for numerical simulation of solute transport during in-situ leaching of uranium with consideration of only convection and diffusion, the method permits establishment of a multi-field coupled reactive solute transport model to simulate the dynamic leaching process of a sandstone-type uranium deposit in Northern China. The method provided in the present disclosure includes: creating a thermodynamic database suitable for CO2+O2 leaching of a sandstone-type uranium deposit in Northern China, and with consideration of the dynamic reaction process of uranium dissolution under combined action of oxygen O2 (aq) and bicarbonate HCO3−, performing numerical simulation of reactive transport during CO2+O2 in-situ leaching of uranium using a TOUGHREACT simulation technology framework.

Classes IPC  ?

• C22B 60/02 - Obtention du thorium, de l'uranium ou des autres actinides
• G01V 1/30 - Analyse

Abrégé

Disclosed in the present invention is a flood sensitivity risk assessment method based on ensemble learning. The method comprises: collecting, as feature data, data such as topography and a landform, hydrology and meteorology, and soil vegetation of a research area, and performing standardization processing on the feature data; extracting historical flooding points and non-flooding points of a research basin according to historical water level data and remote sensing data; selecting an optimal feature subset by using a Laplacian score; dividing sample points into a training set and a test set, and training an ensemble learning model; and performing flood risk sensitivity calculation on the entire basin by using the trained model, so as to generate a flood sensitivity risk level distribution diagram of the basin. In the present invention, each piece of feature data of a research area is used as an input, and a novel ensemble learning model is used, thereby improving the accuracy of a flood risk assessment of a basin. Finally, a flood risk mapping diagram of the basin is generated, so that the flood risk condition of the research area can be visually exhibited.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

Provided in the present invention is a diagenetic cementation solution and a method for manufacturing a sand sculpture with the same. The diagenetic cementation solution includes a urease-containing plant powder, urea, calcium salt and a cementation solution, wherein the urease-containing plant powder is dissolved in the cementation solution in a mass ratio of 10:50 to 1:50, a resulting mixture is stirred and left to stand for a period of time, and a supernate is reserved; a mixture of the urea and the calcium salt is dissolved in the supernate in a mass ratio of 1:5 to 1:20. The method for manufacturing a sand sculpture includes: ramming a foundation by means of the diagenetic cementation solution, mounting a form and piling sand, pouring and ramming, and removing the form and carrying out sculpturing.

Classes IPC  ?

• B44C 1/22 - Enlèvement superficiel de matière, p. ex. par gravure, par eaux fortes
• B44C 3/06 - Sculpture

Abrégé

The present invention belongs to the technical field of rock and soil reinforcement, and specifically relates to a plant urease-containing soil solidification agent and a zero-waste production process thereof. A crudely-purified plant urease solution includes a large amount of irrelevant proteins, which seriously affects the treatment effect of the soil solidification agent, makes it impossible to achieve an expected construction purpose, and also causes serious waste and environmental pollution. In the present invention, a common plant urease extraction method on the market is optimized to significantly reduce a protein concentration in a plant urease solution, greatly improve the infiltration performance of a plant urease-containing soil solidification agent, and broaden an application range of such a soil solidification agent.

Classes IPC  ?

• C12N 9/80 - Hydrolases (3.) agissant sur les liaisons carbone-azote autres que les liaisons peptidiques (3.5) agissant sur les liaisons amides des amides aliphatiques
• E02D 3/12 - Consolidation par mise en place dans le sol de produits solidifiants ou obturant les pores

Abrégé

A rapid-converging ultrahigh-frequency microwave rainfall data discretization method. The method comprises: discretizing each link in an ultrahigh-frequency microwave network into a plurality of segments of short links; taking the central point of each short link as a virtual station, and determining a central station and a side station in each link; and performing estimation for a virtual station on each link, performing calculation, by means of IDW, by using rainfall intensity estimators of all central stations of other links except the link, correcting a calculation result, and performing successive iteration until an iteration termination condition is met, so as to complete discretization. The method is more scientific and realizes a higher convergence speed. Aiming at the features of an ultrahigh-frequency microwave network, only a central station participates in optimization calculations, so that errors introduced to a model after station discretization are greatly reduced. Accordingly, during a rainfall data processing process, only the central station is used, such that the arithmetic speed is not limited by the number of virtual stations.

Classes IPC  ?

• G01W 1/10 - Dispositifs pour la prévision des conditions météorologiques

Abrégé

The present invention discloses an immersed active infrared self-cleaning secondary sedimentation tank sludge blanket induction device and an application method thereof, the induction device comprises an upper sleeve and a lower sleeve that are connected up and down and form a communicated inner cavity, a set of infrared emitters and infrared receivers that are located on an inner wall of the upper sleeve and are oppositely arranged, a transparent hard ring that is annularly adhered to front sides of the infrared emitters and the infrared receivers, and a push rod assembly that can move up and down in the inner cavity and is used for cleaning the transparent hard ring; wherein a sludge outlet hole and a water outlet hole located below the sludge outlet hole are arranged on the upper sleeve, a bearing plate is arranged in the inner cavity of the lower sleeve.

Classes IPC  ?

• B01D 21/00 - Séparation par sédimentation de particules solides en suspension dans des liquides
• B01D 21/02 - Bacs de décantation
• B01D 21/30 - Dispositifs de commande
• B01D 21/32 - Commande de la densité du liquide clair ou du sédiment, p. ex. commande optique
• C02F 11/121 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique

Abrégé

Disclosed is a maximum communication delay measurement method for safe braking of a smart connected vehicle; the measurement method is: first performing parameter initialization, the parameters for initialization comprising vehicle braking parameters, kinematic/kinetic parameters, and communication parameters; then generating a braking force function of the vehicle, taking the minimum distance between vehicles as the objective, and solving for the maximum allowable communication delay between vehicles on the basis of the proposed evaluation method; using the present application it is possible to accurately and efficiently calculate the maximum allowable communication time delay for vehicle braking.

Classes IPC  ?

• G01M 17/007 - Véhicules à roues ou à chenilles

Abrégé

A self-driving platoon-based lightweight scheduling method for an uncontrolled intersection. An intersection is divided into square boxes comprising multiple cells, serial numbers of the cells are configured, and lanes connected to the intersection are preconfigured as points of entry or points of exit (S10); a lead vehicle of a self-driving platoon runs a collision detection algorithm to guide itself to travel through the intersection (S20); and, the lead vehicle and the tail vehicle of the self-driving platoon use three types of safety messages, namely an ENTER message, a CROSS message, and an EXIT message, to exchange information with the lead vehicles and the tail vehicles of other self-driving platoons within a communication range, thus implementing platoon scheduling at the intersection (S30). Compared with a traffic light scheduling method, the method provides increased traffic efficiency.

Classes IPC  ?

• G08G 1/0967 - Systèmes impliquant la transmission d'informations pour les grands axes de circulation, p. ex. conditions météorologiques, limites de vitesse
• G08G 1/081 - Commande des signaux de trafic plusieurs carrefours dépendant d'une commande commune
• G08G 1/16 - Systèmes anticollision
• G08G 1/00 - Systèmes de commande du trafic pour véhicules routiers

Abrégé

Disclosed are a spur dike with movable water-permeable piles and a method for operating same. The spur dike with movable water-permeable piles comprises a fixed rail, a plurality of moving rails, a plurality of movable water-permeable piles disposed on the fixed rail and the plurality of moving rails, and a plurality of pressure sensors and flow meters arranged at monitoring points on outer side walls of the movable water-permeable piles, and a control platform, wherein the control platform carries out analysis and calculation according to monitoring data from the pressure sensors and the flow meters and adjusts the positions of the moving rails and the movable water-permeable piles, such that the water flow velocities and the spur dike pressures at the monitoring points are all less than a corresponding flow velocity threshold value and a corresponding pressure threshold value, and the water permeability rate of the spur dike is within a set range. The present invention is applicable to various river conditions, and the water permeability rate of the spur dike and the form of the spur dike body are adjusted in a self-adaptive manner according to changes in the water flow velocity and the pressure borne by the dike body, such that the stability and the environmentally friendly application effect of the spur dike are effectively improved.

Classes IPC  ?

• E02B 3/06 - MôlesJetéesQuaisMurs de quaiÉpisBrise-lames
• E02B 3/10 - BarragesDiguesCanaux à vannes ou autres ouvrages pour digues, barrages ou analogues
• E02B 3/02 - Régulation de cours d'eau, p. ex. dérochement sous l'eau, nettoyage de lits de cours d'eau, orientation du courant

Abrégé

A convex type guide plate waterwheel energy increasing device with gradually dense holes is provided. The convex type guide plate waterwheel energy increasing device comprises fixed devices, a main diversion plate and auxiliary diversion plates, wherein an upwards convex arc structure is arranged on the top surface of the main diversion plate, gradually dense first through holes are formed in the main diversion plate from the middle to the two ends, the diameters of the first through holes are gradually increased, the auxiliary diversion plates are connected to the two sides of the main diversion plate, second through holes are formed in the auxiliary diversion plates, fixed devices are fixed to the two sides of the auxiliary diversion plates, and the fixed devices are used for fixing the main diversion plate and the auxiliary diversion plates to the riverbed. Through the convex type main diversion plate with the gradual dense holes with different heights, the device adapts to the condition that the distance between the waterwheel and the bottom of the riverbed is different along with the change of the phase angle, kinetic energy of low-velocity air at the bottom of the riverbed is conveyed to the impeller area of the waterwheel, the effective acceleration area in the river channel is large, the average velocity of water flow in the impeller area of the waterwheel is increased, and the output power of the unit is improved.

Classes IPC  ?

• F03B 11/00 - Parties constitutives ou détails non couverts par les groupes ou présentant un intérêt autre que celui visé par ces groupes
• F03B 17/06 - Autres "machines" ou machines motrices utilisant un écoulement de liquide, p. ex. du type à clapets oscillants

Abrégé

A method of a power user classification based on distributed K-means, a storage medium and a classification device are provided. The method includes: obtaining, by N load aggregators, power consumption data of power users managed by respective load aggregators; performing, by each load aggregator, a normalization operation on time series load data of the power users managed by the load aggregator; forming a N×N dimensional adjacency matrix A; performing K-means clustering on normalized time series load data, to obtain the respective centroids and user groups characterized by the respective centroids; sharing, by the respective load aggregators, the centroids and the number of users under the respective centroids based on the adjacency matrix A, and obtaining consistent centroids by multiple load aggregators; after an overall iteration ends, obtaining, by the respective load aggregators, the consistent centroids consistent with the K-means centroid based on global data, to realize user classification.

Classes IPC  ?

• G06F 16/28 - Bases de données caractérisées par leurs modèles, p. ex. des modèles relationnels ou objet
• G06F 1/28 - Surveillance, p. ex. détection des pannes d'alimentation par franchissement de seuils
• G06F 17/16 - Calcul de matrice ou de vecteur
• G06Q 30/0204 - Segmentation du marché
• G06Q 50/06 - Fourniture d’énergie ou d’eau

Abrégé

A gate detection robot based on a giant magnetoresistance element includes a support, a guide wheel, and two driving wheels are provided at the bottom of the support. The support is provided with a controller, a range-based localization module, and a magnetic flaw detection sensor based on the giant magnetoresistance element. The magnetic flaw detection sensor includes an excitation mechanism, a giant magnetic sensor, and two magnetic concentrators. During detection, the excitation mechanism magnetizes a gate with a magnetic field as a medium. When the surface of the gate has a defect, the magnetic conductivity of the local area is reduced and the magnetic resistance is increased so that magnetic lines are distorted and diffused outside the gate to form a detectable leakage magnetic field signal, the signal is transmitted to the controller, so that the controller obtains a specific location of the detection robot.

Classes IPC  ?

• G01R 33/09 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs magnéto-résistifs
• G01N 27/83 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en étudiant des champs magnétiques de dispersion
• G01S 15/08 - Systèmes pour mesurer la distance uniquement

Abrégé

A method for biotesting of water quality using an obstructive multi-module water quality biotesting apparatus, said apparatus comprising an obstruction index selection device and a water quality testing device; the obstruction index selection device is used for selecting a qualified or effective stepped obstruction level combination, and according to the behaviors of the biological indicators of passing through each obstruction in the effective obstruction level combination after being injected into water to be tested, the water quality testing device tests the water quality of water to be tested. In the method, on the basis of the difference between the behaviors of biological indicators in clean water and polluted water, the distribution areas of biological indicators are counted by establishing a relationship between the degree of water pollution and the bioindicator distribution area, so as to determine the degree of water pollution. The method can accurately and quickly measure the degree of water pollution, without using techniques such as chemical analysis and physical detection, thereby having the advantages of low cost, quick operation, accurate results, and the like.

Classes IPC  ?

• G01N 33/18 - Eau

Abrégé

Disclosed are a diagenetic gelling liquid and a method for making a sand sculpture using same. The diagenetic gelling liquid comprises a urease-containing plant powder, urea, a calcium salt and a gelling liquid, wherein the urease-containing plant powder is dissolved in the gelling liquid at a mass ratio of 10:50 to 1:50; and after stirring and leaving to stand for a period of time, a supernatant is retained, and a mixture of the urea and the calcium salt is dissolved in the supernatant at a mass ratio of 1:5 to 1:20. The method for making a sand sculpture comprises: tamping a foundation by means of the diagenetic gelling liquid (1); mounting a template (2) and heaping up sand; pouring and tamping same; dismantling the template; and sculpting. By pouring the diagenetic gelling liquid onto the surface of the sand sculpture layer by layer, the diagenetic gelling liquid reacts on the surface of the sand sculpture to generate calcite (5), which can significantly improve the surface strength of the sand sculpture, such that the sand sculpture is resistant to rainwater and low temperatures, thereby prolonging the lifetime of the sand sculpture.

Classes IPC  ?

• B44C 1/22 - Enlèvement superficiel de matière, p. ex. par gravure, par eaux fortes
• B44C 3/06 - Sculpture

Abrégé

A rain, snow, and hail classification monitoring method based on semi-supervised domain adaptation, comprising: using radar to measure the radar reflectivity of electromagnetic waves in weathers in the case of various types of precipitation water particles, wherein the various types of water particle precipitation comprise rain, snow, and hail (S10); obtaining preprocessed data in weathers in the case of various types of precipitation water particles according to the radar reflectivity in weathers in the case of various types of precipitation water particles (S20); constructing a first data set with labels and a second data set without labels according to the preprocessed data, calculating a first covariance matrix of the first data set and a second covariance matrix of the second data set, determining a first feature subspace according to the first covariance matrix, and determining a second feature subspace according to the second covariance matrix (S30); determining a kernel function according to the first feature subspace and the second feature subspace (S40); training an initial classifier according to the kernel function by using the first data set as a training sample set (S50); selecting a subset from the second data set to perform unsupervised learning of the initial classifier, so that the selected subset can provide the initial classifier with incremental knowledge to adapt to a target domain (S60); and obtaining an objective function of the initial classifier after unsupervised learning, determining an adjacency graph according to the first data set and the second data set, optimizing the objective function according to the adjacency graph to determine a final classifier, and classifying rain, snow, and hail using the final classifier (S70). The rain, snow, and hail can be accurately classified according to the present method, such that corresponding classification monitoring plans can be more accurate.

Classes IPC  ?

• G01S 13/95 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la météorologie
• G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques

Abrégé

A floating sludge discharge device for a square settling tank, and belongs to the field of water treatment. In order to solve the problem of scraping of floating sludge in the square settling tank, by disposing a water outlet hole below a liquid level and designing a pulling barrel mechanism that changes its overall gravity by using secondary settlement water, to move up and down to pull a sludge scraping plate to move back and forth, the stretching-out end of the sludge scraping plate of a sludge scraping plate mechanism automatically goes deep into the liquid level and automatically lifts up when it returns.

Classes IPC  ?

• B01D 21/24 - Mécanismes d'alimentation ou d'évacuation pour bacs de décantation

Abrégé

An automatic draining device for condensed water or leaking water in an aeration pipeline comprises a water tank, a draining and exhausting stand pipe and a float bowl valve. According to the automatic draining device, the condensed water or the leaking water is sprayed out through pressurized air; under the condition that the condensed water or the leaking water in the aeration pipeline is basically drained, the outlet is basically closed, only allowing little gas to flow out; and meanwhile, when water is accumulated in the pipeline, the water outlet can be automatically opened widely to drain the accumulated water rapidly.

Classes IPC  ?

• F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
• C02F 7/00 - Aération des plans d'eau
• G05D 9/02 - Commande du niveau, p. ex. en commandant la quantité du matériau emmagasiné dans un réservoir sans source d'énergie auxiliaire
• F16K 24/06 - Dispositifs, p. ex. soupapes, pour la mise à l'air libre ou l'aération d'enceintes pour l'aération uniquement
• F16K 33/00 - Flotteurs pour actionner les soupapes ou autres dispositifs

Abrégé

A method for determining the flow velocity distribution of a rough sub-layer, wherein an experimental device that is used comprises a variable-slope circulating water tank system and a flow measurement system. The variable-slope circulating water tank system is used to simulate the flow of the rough sub-layer, and the flow measurement system is used to measure the flow velocity distribution in each region of the variable-slope circulating water tank system. Cylindrical aluminum rods are used to simulate large-scale rough elements in a variable-slope circulating water tank, and experimental research is carried out by means of changing the submergence degree, the average flow velocity of sections and the distribution density of rough elements. The foregoing is beneficial for the refined simulation of complex boundary flows such as river water flow and land air flow, and provides a certain foundation for the research on riverbed sediment transport deformation and air pollution problems.

Classes IPC  ?

• G01M 10/00 - Tests hydrodynamiquesAménagements dans ou sur les bassins de tests des navires ou les tunnels hydrauliques

Abrégé

The present invention provides a method for an automatic replay attack test in a field bus. By deploying an attack proxy device on the field bus, an automatic replay attack test without manual intervention is realized. By means of the attack proxy device deployed on the field bus, normal application data units transmitted on the field bus are monitored, and test cases are automatically generated to perform replay attack tests. The efficiency of security tests can be effectively increased, and vulnerability proof-of-concept instances are provided for security personnel. According to the invention, security risks caused by replay attacks on a field bus channel in an automated control system can be reduced, and reliable security assurances are provided for automated control systems, especially for electric power and water conservancy systems, which are key infrastructure systems in the field of national economy. In the present invention, the attack proxy device can be implemented by using a single-chip microcomputer system, without the need of using a high-priced industrial-grade computer. The invention has high device compatibility and universality, and is convenient to popularize.

Classes IPC  ?

• H04L 12/40 - Réseaux à ligne bus
• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

Disclosed is a channel encryption method for a fieldbus in a water management automation control system. By means of a hardware encryption gateway deployed between an automation control device and the fieldbus, transparent encryption of a protocol data unit is implemented. In the hardware encryption gateway, by means of a mixed encryption solution combining a domestic symmetric encryption algorithm and an asymmetric encryption algorithm, automation control device identity authentication, fieldbus communication data confidentiality, and protocol packet integrity check functions are implemented, an unauthorized invalid device is effectively prevented from listening to, intercepting, and tampering with data monitoring and control information on a channel of the fieldbus, increased resistance against a man-in-the-middle attack is provided, and security risks in the water management automation control system resulting from a fieldbus channel intrusion are reduced. The hardware encryption gateway is capable of seamlessly accessing a fieldbus of an existing water management automation control system and provides increased device compatibility and versatility.

Classes IPC  ?

• H04L 1/00 - Dispositions pour détecter ou empêcher les erreurs dans l'information reçue
• H04L 9/06 - Dispositions pour les communications secrètes ou protégéesProtocoles réseaux de sécurité l'appareil de chiffrement utilisant des registres à décalage ou des mémoires pour le codage par blocs, p. ex. système DES
• H04L 9/08 - Répartition de clés
• G06F 13/42 - Protocole de transfert pour bus, p. ex. liaisonSynchronisation

Abrégé

The present invention provides a key management method for a fieldbus channel encryption device. Key distribution, key updating, and key removal are performed on a channel encryption device connected to a fieldbus so as to achieve decentralized distributed key management. In the fieldbus, identity authentication of a channel access device is performed without the need to establish any separate public key infrastructure or certificate authority, thereby improving access efficiency, reducing time overhead, and improving compatibility. An existing bus network topological structure does not need to be retrofitted, and effectively preventing a case in which an unauthorized illegal device monitors, intercepts, and tampers with data monitoring and control information on the fieldbus channel, thereby achieving high resistance to a man-in-the-middle attack. The invention reduces a safety risk caused by intrusions into fieldbus channels in automation control systems in industries such as water conservancy, intelligent manufacturing, environmental monitoring, and the like, and provides a reliable security assurance to critical national infrastructures.

Classes IPC  ?

• H04L 29/06 - Commande de la communication; Traitement de la communication caractérisés par un protocole

Abrégé

Disclosed is an operation scheduling method for multiple energy systems, comprising: separately constructing a power system operation scheduling model, a natural gas system operation scheduling model, and a thermodynamic system operation scheduling model in the multiple energy systems; separately solving the optimality conditions of a power system scheduling model, a natural gas system scheduling model, and a thermodynamic system scheduling model; constructing an operation scheduling objective optimization function of the multiple energy systems, and using the solved optimality conditions as constraints; solving the objective optimization function, and obtaining the Nash equilibrium point of a non-cooperative game of the multiple energy systems; and separately performing operation scheduling on a power system, a natural gas system, and a thermodynamic system in the multiple energy systems according to a scheduling policy corresponding to the Nash equilibrium point. The present invention can realize optimal operation scheduling.

Classes IPC  ?

• G06Q 10/04 - Prévision ou optimisation spécialement adaptées à des fins administratives ou de gestion, p. ex. programmation linéaire ou "problème d’optimisation des stocks"

Abrégé

Disclosed are a method and apparatus for smoothing a link-line power of an electrothermal microgrid using a thermal storage heat pump cluster. The method includes: determining a current link-line power control target and pre-distributing a smoothing task to the heat pump cluster; making, by a heat pump start-stop control layer cluster, a heat pump cluster start-stop scheme, determining a start-stop state of the heat pump cluster and a start-stop smoothing component of the heat pump cluster according to the smoothing task, obtaining a remaining fluctuating power based on link-line fluctuating power and the start-stop smoothing component of the heat pump cluster; smoothing, by a heat pump cluster power adjustment layer, some medium and low frequency components and outputting a smoothing component of the heat pump cluster with respect to a storage battery output optimization target based on the remaining fluctuating power; and simultaneously undertaking, by the storage battery, a smoothing task of the remaining fluctuating power and outputting a storage battery smoothing component to complete the smoothing of the fluctuating power in a control cycle.

Classes IPC  ?

• H02J 3/32 - Dispositions pour l'équilibrage de charge dans un réseau par emmagasinage d'énergie utilisant des batteries avec moyens de conversion
• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage
• B01J 19/10 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage utilisant des vibrations de fréquences audibles ou des ultrasons

Abrégé

Disclosed in the present invention is an interval power flow calculation method for a power-heat integrated energy system, comprising: (1) obtaining power-heat integrated energy system information, and establishing a power-heat integrated energy system model according to the information; (2) converting a pipe pressure drop equation in the system model into a one-variable quadratic function of a flow rate m; (3) obtaining the iterative initial value of a state variable by calculation according to the power-heat integrated energy system model; (4) iteratively solving the upper and lower limits of the state variable by using a linear optimization method according to the iterative initial value of the state variable and the one-variable quadratic function of the flow rate m; and (5) forming the upper and lower limits of the state variable into an interval, and outputting the interval as a power flow solution. The present invention has small calculation complexity and overcomes the conservatism of the interval solution.

Classes IPC  ?

• H02J 3/06 - Commande du transfert de puissance entre réseaux connectésCommande du partage de charge entre réseaux connectés
• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation

Abrégé

Disclosed in the present invention is a multi-period power flow optimization method for an electricity-gas interconnection integrated energy system, said method comprising: (1) acquiring electricity-gas interconnection integrated energy system information; (2) according to said system information, constructing a multi-period scheduling model of an electricity-gas interconnection integrated energy system; (3) converting a non-linear non-convex equation of the natural gas pipe flow and pressure in the multi-period scheduling model of the electricity-gas interconnection integrated energy system into a natural gas power flow model in the form of enhanced second-order cone constraints; (4) calculating the converted multi-period scheduling model of the electricity-gas interconnection integrated energy system, so as to obtain an optimal solution; (5) using the optimal solution as an initial value, and using a DCP method to perform linearization iteration calculation on the converted multi-period scheduling model of the electricity-gas interconnection integrated energy system, until a natural gas system strictly satisfies power flow constraints; and (6) outputting a final solution at the end of the iteration as an optimal power flow solution in a future period. The present invention can effectively perform multi-period power flow optimization.

Classes IPC  ?

• G06Q 10/06 - Ressources, gestion de tâches, des ressources humaines ou de projetsPlanification d’entreprise ou d’organisationModélisation d’entreprise ou d’organisation
• G06Q 50/06 - Fourniture d’énergie ou d’eau
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

Disclosed is a guide cable based apparatus for an unmanned vehicle recovering an autonomous underwater vehicle, characterized in that the apparatus comprises an unmanned surface vehicle, a recovery device carried on the unmanned surface vehicle, an autonomous underwater vehicle to be recovered or launched, and a guide and recovery control system arranged on the autonomous underwater vehicle, wherein an underwater acoustic transducer is arranged at the bottom of the unmanned surface vehicle and is used for underwater acoustic communication between the unmanned surface vehicle and the autonomous underwater vehicle; a hydraulic telescopic rod connected to the recovery device is arranged in a cabin of the unmanned surface vehicle, and movement of the recovery device in a vertical direction can be achieved by means of the hydraulic telescopic rod; and an arc-shaped guide arm and cable mooring pliers are arranged at a top end of the bow of the autonomous underwater vehicle. The beneficial effect that the present invention has lies in that the apparatus and method for using a guide cable to automatically recover an AUV by taking an USV as a water surface platform are provided to overcome the defects of the prior technical means that water surface launching and recovery are greatly influenced by sea wind and waves, and there are personnel and equipment safety risks.

Classes IPC  ?

• B63C 11/00 - Équipement pour séjourner ou travailler sous l'eauMoyens de recherche des objets immergés
• B63G 8/00 - Navires submersibles, p. ex. sous-marins
• B63B 23/00 - Apparaux pour la manœuvre des canots de sauvetage ou analogues

Abrégé

A seakeeping unmanned boat provided with a water-surface self-adaptive stabilizer. The unmanned boat is of a catamaran type and comprises an upper deck (1), floating bodies (7) separated from the upper deck (1) and the self-adaptive stabilizer; the floating bodies (7) provide buoyancy for the unmanned boat and are provided with propelling devices (8); the floating bodies (7) are two floating bodies that are completely bilaterally symmetric; a tilt angle sensor, an accelerometer and a gyroscope are provided on the upper deck (1) and are used to acquire the rotating angle of the upper deck (1) and an angular acceleration prediction and tendency and to transmit the same to a control system in real time; and the self-adaptive stabilizer comprises a suspension system and a balance control mechanism (6).

Classes IPC  ?

• B63B 39/00 - Installations pour diminuer le tangage, le roulis ou autres mouvements similaires indésirables du navireAppareils pour indiquer l'assiette du navire
• B63B 35/00 - Embarcations ou structures flottantes similaires spécialement adaptées à des finalités spécifiques et non prévues ailleurs

Abrégé

A seismic rock physics inversion method based on a large area tight reservoir includes steps: building a multi-scale rock physics model; analyzing fluid sensitivities of rock physics parameters in two scales of acoustic logging and ultrasonic wave, and sifting the rock physics parameters that are most sensitive to a porosity and a gas saturation in a plurality of observation scales; building a single-well rock physics template, preferably a standard template; considering lateral variations and heterogeneity of reservoir geological features, fine-tuning input parameters of the rock physics template according to gas testing situations of all wells in a large work area, optimizing the whole work area and building a three-dimensional work area rock physics template data volume, and combining the data volume with pre-stack seismic inversion to calculate a porosity and a saturation of a target layer; and smoothing a result and finally outputting a reservoir parameter inversion data volume.

Classes IPC  ?

• G01V 1/28 - Traitement des données sismiques, p. ex. pour l’interprétation ou pour la détection d’événements
• G01V 1/30 - Analyse

Abrégé

Provided is a nano-photocatalyst-microorganism composite multilayered light-transmitting combination support, comprising a plurality of wave-shaped plexiglass plates (1), a tandem rod holder (4), hollow elastic spacers (5), and fixing screws (6); each of the wave-shaped plexiglass plates (1) is provided with four fixing holes (7); the tandem rod holder (4) is provided with four tandem rods (8), and the four tandem rods (8) pass through the fixing holes (7); the tandem rods (8) between the two adjacent wave-shaped plexiglass plates (1) pass through the hollow elastic spacers (5); each of the tandem rods (8) is provided with a fixing screw (6) at the top end; each of the wave-shaped plexiglass plates (1) have different loading layers on the upper and lower surfaces, with a nano-photocatalyst-loading layer (2) on one surface and a degrading bacteria-loading layer (3) on the other surface. Also provided is a method of making the nano-photocatalyst-microorganism composite multilayered light-transmitting combination support.

Classes IPC  ?

• C02F 3/10 - GarnissagesRemplissagesGrilles
• C02F 3/00 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout
• C02F 3/34 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les micro-organismes utilisés
• C02F 103/00 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter

Abrégé

Disclosed in the present invention are a sluice gate testing apparatus and a testing method based on a phased array ultrasonic flaw detector. The testing apparatus comprises a testing mechanism, the testing mechanism comprising a support frame. A guide wheel and two drive wheels are provided on the bottom of the support frame, the drive wheels being driven by means of a first electric motor, and a controller and a phased array ultrasonic flaw detector are provided on the support frame. During the testing process, a second electric motor drives a rotating platform to rotate, driving a rotating arm to rotate in an upper region of a fan-shaped through hole; simultaneously, a third electric motor drives a leadscrew to rotate, driving a sliding block and an ultrasonic phased array matrix probe to move along the leadscrew in the length direction; that is, while the ultrasonic phased array matrix probe moves in the width direction of a sluice gate, the probe also sweeps at a certain angle, and is thus able to perform testing on a large area of the sluice gate simultaneously; and a testing signal from the ultrasonic phased array flaw detector is passed to the controller. The present invention uses phased array ultrasonic technology, and features high testing efficiency and high testing accuracy.

Classes IPC  ?

• G01N 29/265 - Dispositions pour l'orientation ou le balayage en déplaçant le capteur par rapport à un matériau fixe

Abrégé

Disclosed is a gate detection robot based on giant magnetoresistance element, comprising a detection mechanism; arranged at the bottom of the support (1); and a controller, a range-based localization module and a magnetic flaw detection sensor based on giant magnetoresistance element arranged on the support (1); the magnetic flaw detection sensor comprises an excitation mechanism, a giant magnetic sensor (9) and two magnetic concentrators (8). During detection, a magnetic field is used as a medium; the excitation mechanism magnetizes the gate; when the surface of the gate has a defect, the magnetic conductivity of the local area is reduced and the magnetic resistance is increased so that magnetic lines are distorted and diffused outside the gate to form a detectable leakage magnetic field signal; the signal is transmitted to a controller, and the controller can obtain the specific location of the detection robot, i.e., the specific location of the defect, according to the data measured by two ultrasonic wave sensors, and then transmits the defect information and the defect location information to an upper computer. The detection result has high precision and good stability. Further disclosed is a detection method for the gate detection robot based on giant magnetoresistance element.

Classes IPC  ?

• G01N 27/83 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en étudiant des champs magnétiques de dispersion
• G01M 3/16 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique
• G01M 3/28 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour tuyaux, câbles ou tubesExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour raccords ou joints d'étanchéité de tuyauxExamen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par mesure du taux de perte ou de gain d'un fluide, p. ex. avec des dispositifs réagissant à la pression, avec des indicateurs de débit pour soupapes

Abrégé

The present application discloses a method and an apparatus for estimating weather-sensitive load power. Said method comprises: acquiring a weather-sensitive load power estimation model; inputting, to the weather-sensitive load power estimation model, a daily load curve of a day to be estimated, so as to extract a dimension reduction feature of the daily load curve of the day to be estimated; and outputting a weather-sensitive load power according to the dimension reduction feature of the daily load curve of the day to be estimated, and a mapping from the dimension reduction feature of the daily load curve to the weather-sensitive load power.

Classes IPC  ?

• G06F 17/50 - Conception assistée par ordinateur

Abrégé

Disclosed is a floating sludge discharge device for a square sedimentation tank. A water outlet hole is provided below a liquid surface, and a pulling bucket mechanism (1) is designed to change its overall gravity through outlet water of a secondary sedimentation tank so as to move up and down to pull a sludge-scraping plate (4.4) to move back and forth; and a protruding end of the sludge-scraping plate (4.4) of a sludge-scraping plate mechanism (4) automatically goes deep below the surface of the liquid and is automatically lifted when returning.

Classes IPC  ?

• B01D 21/24 - Mécanismes d'alimentation ou d'évacuation pour bacs de décantation

Abrégé

A weld scanner for a real-life bridge and scanning method thereof is disclosed. The weld scanner includes a running portion and a scanning portion mounted on a scanner chassis. A front end and a tail end of the scanner chassis are both provided with a laser range finder. A magnet is arranged at a bottom portion of the scanner chassis. The scanning portion includes a probe slider, a bendable metal pipe and a probe connected in sequence. A gear is arranged on the probe slider, and the gear is meshed with a rack inside a scanner chassis chute. The weld scanner scans while the running portion moves forward along a weld, and scans a suspected defect position more carefully when a magnetic field change is detected.

Classes IPC  ?

• G01N 21/95 - Recherche de la présence de criques, de défauts ou de souillures caractérisée par le matériau ou la forme de l'objet à analyser
• G01N 27/83 - Recherche ou analyse des matériaux par l'emploi de moyens électriques, électrochimiques ou magnétiques en recherchant des variables magnétiques pour rechercher la présence des criques en étudiant des champs magnétiques de dispersion

Abrégé

Disclosed is a vibration wire type micro-vibration and sound emission sensing device with a micro-nanofiber based fiber grating (1). The sensing device comprises the micro-nanofiber based fiber grating (1), wherein a carbon fiber (2) covers the outside of the micro-nanofiber based fiber grating (1), and a silver coating later (3) is arranged outside of the carbon fiber (2). The vibration wire type micro-vibration and sound emission sensing device with the micro-nanofiber based fiber grating (1) has the advantages of being uncharged, having anti-electromagnetic interference, good durability, a simple structure, a compact layout, a high sensitivity, a wide response range and monitoring in real time, and same can suppress noise by itself with regard to the detection of a sound emission signal. The sensing device can satisfy the sensing requirements of a vibration or sound emission signal in the fields of engineering construction, structural health monitoring, mineral development, aeronautics and astronautics, precise measurement, etc., in particular on an occasion in which a sensor needs to work for a long-time, and needs to be explosion-proof, miniaturized and resist electromagnetic interference.

Classes IPC  ?

• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique

Abrégé

A sensing optical fiber acoustic emission integrated sensing system and method for monitoring the safety of a structure which comprises a sensing optical fiber temperature interference removal device and a sensing optical fiber acoustic emission demodulation device. A sensing optical fiber (206) successively passes through the sensing optical fiber temperature interference removal device and the sensing optical fiber acoustic emission demodulation device. A distributed sensing optical fiber acoustic emission regulation and control device for sensing the degradation of structure performance is integrated with a sensing optical fiber acoustic emission sensing system with multiple complex devices, multiple functional modules and multiple interconnection components.

Classes IPC  ?

• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p. ex. des moyens optiques
• G01N 29/24 - Sondes
• G01N 29/44 - Traitement du signal de réponse détecté

Abrégé

The present invention discloses a device for measuring adsorption/desorption of contaminants onto surface bed sediments and a method of using the device. The measurement device includes a sediment sample disc, a sample holder, a reaction cylinder, a liquid collection cylinder, and a liquid circulating member from inside to outside, the liquid circulating member consisting of rubber pipes and a peristaltic pump. According to the method of using the device for measuring the adsorption/desorption of contaminants onto surface bed sediments, the full contact of bed sediments with pore water and the full exchange of overlying water with pore water are realized through liquid circulation without changing the arrangement modes of the bed sediments; any thickness of bed sediments can be performed on experiments, particularly for thin-layer bed sediments; and natural permeation and accelerated permeation of pore water through bed sediments can be switched simply by adjusting the flow rates of the peristaltic pump and by opening/closing of vent holes. Adsorption characteristic parameters obtained through the device and the method provide, for water quality models, data support which conforms to the natural existing condition of bed sediments and is more scientific and reasonable, and the device and the method achieve significant environmental benefits.

Classes IPC  ?

• G01N 33/24 - Matériaux de la terre
• G01N 11/00 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement
• G01N 21/78 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique produisant un changement de couleur
• B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
• B01L 5/00 - Appareils pour le traitement des gaz
• B01L 9/00 - Dispositifs de supportDispositifs de serrage

Abrégé

The present invention discloses a dynamic diagnosis system and method for concrete damage based on a distributed sensing optical fiber. The system includes an upper fixed platform and lower fixed platforms, the upper fixed platform is provided with an optical fiber correction entity and an optical fiber framing platform, the optical fiber correction entity is provided with a butterfly-shaped optical fiber pressing block, the optical fiber framing platform is provided with an optical fiber threaded column, a sensing monitoring barrel and a disturbance eliminating barrel are arranged below the upper fixed platform, the downside of the sensing monitoring barrel is connected with a left fiber fixing beam, the left fiber fixing beam is connected with a left barrel bottom cone, the left barrel bottom cone is hinged with a left port light source protection body, the lower end of the disturbance eliminating barrel is connected with a right fiber fixing beam, the right fiber fixing beam is connected with a right barrel bottom cone, and the right barrel bottom cone is hinged with a right port light source protection body. The dynamic diagnosis system and method are not only capable of catching microvibration, but also capable of bearing greater-amplitude vibration, so that the vibration monitoring range is greatly widened, and the demand for dynamic diagnosis of concrete structural damage is met perfectly.

Classes IPC  ?

• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p. ex. des moyens optiques

Abrégé

The apparatus comprises a bottom plate, a first side plate (304), and a second side plate (305). The top of the first side plate is connected to the top of the second side plate by an arc-shaped fiber carrying channel (310, 311). A first arc-shaped cover (300) and a second arc-shaped cover (301) are hinged to the tops of the first side plate and the second side plate, respectively. A first arc-shaped pressing body (308) and a second arc-shaped pressing body (309) are fixedly connected to the lower end surfaces. A first sensing optical fiber (312) and a second sensing optical fiber (313) located in the arc-shaped fiber carrying channel are disposed below the first arc-shaped pressing body and the second arc-shaped pressing body respectively. The first arc-shaped cover is connected to the second arc-shaped cover by a locking apparatus.

Classes IPC  ?

• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
• G01N 29/24 - Sondes

Abrégé

Provided are a water engineering seepage behavior fusing and sensing system and method. The system comprises a seepage-hidden optical fiber locating device, a seepage flow velocity distributed optical fiber monitoring device, an online seepage line diagnosis device and a seepage behavior optical fiber self-adaptive identification device, the location of a water engineering seepage point is realized by using the seepage-hidden optical fiber locating device, then, the seepage flow velocity of a water engineering is monitored by virtue of the seepage flow velocity distributed optical fiber monitoring device, the online diagnosis of a seepage line on a section of a whole water engineering structure can be realized by using the online seepage line diagnosis device, and finally, the current seepage behavior is integrally monitored and evaluated by using the seepage behavior optical fiber self-adaptive identification device, so that the water engineering seepage behavior fusing and sensing is completed. The optical information change of the optical fiber is acquired from multiple aspects and angles by using the four water engineering seepage monitoring devices, depending on the material and mechanical properties of the water engineering and relying on a distributed optical fiber monitoring technology, and furthermore, the monitoring and sensing of a seepage behavior of a water engineering are indirectly completed.

Classes IPC  ?

• G01M 3/04 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite
• G01P 5/26 - Mesure de la vitesse des fluides, p. ex. d'un courant atmosphériqueMesure de la vitesse de corps, p. ex. navires, aéronefs, par rapport à des fluides en mesurant l'influence directe du courant de fluide sur les propriétés d'une onde optique de détection
• G01M 3/38 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation de la lumière
• G01M 3/16 - Examen de l'étanchéité des structures ou ouvrages vis-à-vis d'un fluide par utilisation d'un fluide ou en faisant le vide par détection de la présence du fluide à l'emplacement de la fuite en utilisant des moyens de détection électrique

Abrégé

An acoustic emission source expansion apparatus integrated hydraulic engineering construction behavior fiber sensing device includes a base plate, a first side plate and a second side plate fixedly connected with two sides of the base plate, the top portion of the first side plate is connected with the top portion of the second side plate through an arc-shaped fiber-carrying channel, and a main common cavity is formed by the base plate, the first side plate, the second side plate and the arc-shaped fiber-carrying channel; a pair of sensing fibers is arranged in the arc-shaped fiber-carrying channel, the sensing fibers are tightly pressed in the arc-shaped fiber-carrying channel through a pressing block, the pressing block is provided with a plurality of springs, the springs tightly press the pressing block through a cover plate, and the cover plate is arranged on the first side plate and the second side plate.

Classes IPC  ?

• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p. ex. des moyens optiques
• G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p. ex. câbles de transmission optique
• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique

Abrégé

A fiber acoustic emission sensing apparatus and method including a laying device and an acoustic emission source; the laying device comprises base plate, first side plate and second side plate, the top portion of the first side plate connected with the top portion of the second side plate through an arc-shaped fiber-carrying channel, a main cavity formed by the first side plate and the second side plate; top portions of the first and second side plates respectively hinged with first and second arc-shaped covers, the lower end surface of the first arc-shaped cover fixedly connected with a first arc-shaped pressing body, the lower end surface of the second arc-shaped cover fixedly provided with a second arc-shaped pressing body, a first sensing fiber arranged under the first arc-shaped pressing body, and a second sensing fiber arranged under the second arc-shaped pressing body.

Classes IPC  ?

• G01N 29/24 - Sondes
• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01D 5/353 - Moyens mécaniques pour le transfert de la grandeur de sortie d'un organe sensibleMoyens pour convertir la grandeur de sortie d'un organe sensible en une autre variable, lorsque la forme ou la nature de l'organe sensible n'imposent pas un moyen de conversion déterminéTransducteurs non spécialement adaptés à une variable particulière utilisant des moyens optiques, c.-à-d. utilisant de la lumière infrarouge, visible ou ultraviolette avec atténuation ou obturation complète ou partielle des rayons lumineux les rayons lumineux étant détectés par des cellules photo-électriques en modifiant les caractéristiques de transmission d'une fibre optique
• G01N 29/34 - Génération des ondes ultrasonores, sonores ou infrasonores

Abrégé

A distributed sensing fiber acoustic emission apparatus and method for monitoring a hydraulic engineering safety behavior includes a fiber-carrying laying module and a fiber acoustic emission module. The fiber-carrying laying module includes an inner supporter, mesh modules and fiber-carrying modules, the inner supporter, the mesh modules and the fiber-carrying modules form a cylindrical shape. The cross section of the inner supporter is in a quadrangle inner-concave shape with the four edges concaved, the four surfaces of the inner supporter are concaved, the mesh modules having a plurality of meshes are respectively disposed in the four concave surfaces of the inner supporter, and the fiber-carrying module is arranged between every two adjacent mesh modules.

Classes IPC  ?

• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
• G01N 29/22 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet Détails
• G01N 29/24 - Sondes
• G01H 9/00 - Mesure des vibrations mécaniques ou des ondes ultrasonores, sonores ou infrasonores en utilisant des moyens sensibles aux radiations, p. ex. des moyens optiques

Abrégé

A distributed sensing fiber acoustic emission fusion sensing system includes a sensing fiber temperature-sensitive compensation device and a sensing fiber acoustic emission demodulation device. A sensing fiber in the sensing fiber temperature-sensitive compensation device after being compensated enters the sensing fiber acoustic emission demodulation device.

Classes IPC  ?

• G01N 29/14 - Recherche ou analyse des matériaux par l'emploi d'ondes ultrasonores, sonores ou infrasonoresVisualisation de l'intérieur d'objets par transmission d'ondes ultrasonores ou sonores à travers l'objet utilisant des techniques d'émission acoustique
• G02B 6/02 - Fibres optiques avec revêtement
• G01N 29/32 - Dispositions pour supprimer des influences indésirables, p. ex. des variations de température ou de pression
• G01N 29/24 - Sondes

Abrégé

A biological soil amendment for coastal saline-alkali soil, comprising the following components in parts by weight: 1-2 parts of sludge powder, 0.25-2 parts of charcoal powder, 0.1-1 part of rice hull powder, 4-15 parts of water, and 0.5-1 part of high salt tolerant microbial bacteria liquid. The biological soil amendment is simple in preparation process and low in cost, can rapidly increase the soil fertility to effectively improve the current situations of the coastal saline-alkali soil such as low fertility, high sand content and poor soil aggregate structure, increase the soil humus, and facilitates formation of aggregate structures, and organic acid generated after decomposition of the biological soil amendment can neutralize the alkalinity of the soil without contaminating the soil, the plough layer salt accumulation condition can be relieved, and commercial crop growth is facilitated.

Classes IPC  ?

• A01G 22/00 - Culture de plantes spécifiques non prévue ailleurs
• A01C 21/00 - Méthodes de fertilisation
• C05G 3/04 - Mélanges d'un ou plusieurs engrais avec des produits n'ayant pas une activité spécifique d'engrais avec des conditionneurs de sol

Abrégé

A memory-guide simulated pattern recognition method, wherein time sequence information in a memory prior to the current moment is introduced to detect motion information by means of pattern recognition using samples in the sequence as a reference is described. A memory invocation mechanism in a human brain is simulated, and different memory segments are used as elements to detect motion changes in multiple memory segments and the corresponding motion states; a memory attenuation mechanism is simulated, and motion detection results in multiple segments are combined to enhance motion change information in the current moment and form a motion state in a continuous time sequence, so as to form a motion detection result of the current moment as a pattern recognition result.

Classes IPC  ?

• G06K 9/62 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques
• G06K 9/00 - Méthodes ou dispositions pour la lecture ou la reconnaissance de caractères imprimés ou écrits ou pour la reconnaissance de formes, p.ex. d'empreintes digitales
• G06T 7/215 - Découpage basé sur le mouvement
• G06K 9/68 - Méthodes ou dispositions pour la reconnaissance utilisant des moyens électroniques utilisant des comparaisons successives des signaux images avec plusieurs références, p.ex. mémoire adressable

Abrégé

The present invention discloses an integrated monitoring system and monitoring method for a seepage behavior of water engineering in a complex environment, the system includes a seepage character space-time monitoring device and a sensing fiber seepage-monitoring sensitizing device, the seepage character space-time monitoring device includes a vertical force-bearing fiber-carrying column, an outer edge through pipe and a sensing fiber, a left force-bearing beam and a right force-bearing beam are disposed at two sides of the vertical force-bearing fiber-carrying column respectively, the outer edge through pipe is sleeved over the vertical force-bearing fiber-carrying column, a fiber collecting box is disposed above a second transitional round end, the sensing fiber in the fiber collecting box runs through the outer edge through pipe to be connected to a component supporting body containing a temperature measuring device, and then runs through an elastic device after sequentially bypassing the second transitional round end and a first transitional round end to be led out from a third transitional round end. The integrated monitoring system for a seepage behavior of water engineering in a complex environment, with a series of products and technologies such as research and development in basic sensing fibers and secondary processing of common sensing fibers being provided, implements quantitative and qualitative assessments in the horizontal and longitudinal directions in terms of time and space.

Classes IPC  ?

• G01N 15/08 - Recherche de la perméabilité, du volume des pores ou de l'aire superficielle des matériaux poreux
• G02B 6/02 - Fibres optiques avec revêtement
• G01N 33/24 - Matériaux de la terre

Abrégé

Alternanthera philoxeroidesBacillusBacillus and yeast, adding an EM active bacterial liquid, and carrying out culturing under the condition of aerobic fermentation. The preparation method comprises: (1) converting Mailuoning herb residues into biomass carbon at a high temperature, and then mixing the biomass carbon with raw materials so as to obtain a microbial carrier; and (2) loading a composite microbial agent onto the microbial carrier. The sediment stacked with the heavy metal stabilizer and then fermented can be used as a base fertilizer and applied to soil, so that the fertility of the soil is improved; the effectiveness of heavy metals in the soil is reduced; the amount of an inorganic fertilizer used is decreased; the yield and quality of crops are improved. Also disclosed are a method for preparing a stabilizer for heavy metals in the sediment in an aquaculture pond, and an application of the stabilizer.

Classes IPC  ?

• C02F 11/02 - Traitement biologique
• C02F 11/00 - Traitement des boues d'égoutDispositifs à cet effet
• C12N 1/02 - Séparation des micro-organismes de leurs milieux de culture

Abrégé

An automatic draining apparatus for condensed water or leakage water in an aeration pipeline, comprising a water tank (1), a drainage and exhaust stand pipe (3), and a float valve (2). According to the apparatus, condensed water or leakage water is sprayed using pressurized air, and in the case that the condensed water or leakage water in an aeration pipeline is substantially drained, an outlet is substantially closed, only a very small amount of gas is allowed to flow out, and moreover, when accumulated water exists in the pipeline, the water outlet can be automatically opened wider to drain the accumulated water quickly. The water and sewage draining structure implements automatic water and sewage drainage, has a simple structure, features low costs, and can greatly improve the service life and the operation efficiency of an aeration system.

Classes IPC  ?

• F16L 55/07 - Aménagement ou montage de dispositifs, p. ex. soupapes, pour ventiler ou aérer ou purger
• C02F 7/00 - Aération des plans d'eau

Abrégé

A running mode conversion method for an alternating-current/direct-current hybrid microgrid. The used alternating-current/direct-current hybrid microgrid has high flexibility and has high renewable energy absorption ability, running modes, conversion conditions and conversion modes of a microgrid alternating-current side and a microgrid direct-current side in different states are provided with regard to a switching mode of the alternating-current/direct-current hybrid microgrid in different running states, seamless switching among running modes can be achieved, and a technical support is provided for safe and stable running of the alternating-current/direct-current hybrid microgrid.

Classes IPC  ?

• H02J 4/00 - Circuits pour réseaux principaux ou de distribution, la nature alternative ou continue du courant n'étant pas précisée

Abrégé

A tidal water turbine having an energized rotary wheel, comprising a flow guide cover (1), a hub (3) fixed to a rotary shaft (2), and a base impeller fixed on the hub (3), and further comprising an energized rotary wheel which has logarithmic curve spiral blades (7) each having a variable radius, the energized rotary wheel being located at an outlet end of the flow guide cover (1), the logarithmic curve spiral helical blades (7) being gradually stretched along the axial direction of the rotary shaft (2) according to a logarithmic curve spiral line, being twisted spatially and being uniformly distributed on the circumferential inner wall of the rotary shaft (2). Said water turbine has a simple structure and a high efficiency, and can be used not only as a water turbine for generating electric power from marine tidal power, but also for generating electric power in conditions of weak tidal power such as mountain areas, plains, mountain springs, and streams in small reservoirs in hilly areas.

Classes IPC  ?

• F03B 13/26 - Utilisation de l'énergie des marées