Abrégé

A wristband device and system integrating a gesture recognition function and a continuous blood pressure monitoring function. The wristband device uses a reusable electrode assembly (120) in a wearable wristband (100) to acquire wrist impedance distribution data and radial artery pulse impedance waveform data in two functional modes, and converts the biological impedance data into human body gestures and blood pressure information by means of an algorithm deployed in an upper computer (400) of the system, so as to monitor the human body physiological state. The wristband device and system use the reusable electrode array to integrate the two functions in one system, thereby reducing sensor volume, complexity and integration difficulty.

Classes IPC  ?

• G06V 40/20 - Mouvements ou comportement, p. ex. reconnaissance des gestes
• A61B 5/0295 - Mesure du débit sanguin utilisant la pléthysmographie, c.-à-d. par mesure des variations du volume d'une partie du corps induites par la circulation du sang qui traverse cette partie, p. ex. pléthysmographie par impédance
• G06F 3/04883 - Techniques d’interaction fondées sur les interfaces utilisateur graphiques [GUI] utilisant des caractéristiques spécifiques fournies par le périphérique d’entrée, p. ex. des fonctions commandées par la rotation d’une souris à deux capteurs, ou par la nature du périphérique d’entrée, p. ex. des gestes en fonction de la pression exercée enregistrée par une tablette numérique utilisant un écran tactile ou une tablette numérique, p. ex. entrée de commandes par des tracés gestuels pour l’entrée de données par calligraphie, p. ex. sous forme de gestes ou de texte
• A61B 5/021 - Mesure de la pression dans le cœur ou dans les vaisseaux sanguins

Abrégé

The present disclosure discloses a flexible rehabilitation glove based on hybrid actuators. The flexible rehabilitation glove includes five hybrid actuators and an actuator control box, each hybrid actuator includes an actuator end mounting seat, a flexible actuator, a TPFE water pipe, a flexible actuator front section mounting seat, a flexible actuator air pipe, an air pipe connecting seat II, an SMA spring actuator, an air pipe connecting seat I and a cooling water pipe, the control box includes an air pump, a filter, a water pump and a water tank, a proportional valve and a control circuit board inside, and includes an actuator control box body, a control box cover, a main switch, a button and a voltage display outside, and the filter is connected to the air pump and the electrical proportional valve respectively. The flexible rehabilitation glove has the characteristics of large output torque and high force-mass ratio of SMA of the flexible actuator, the problem of only one-way movement of a traditional flexible actuator is solved, the fingers of the patient are driven to move in two directions, and sufficient working torque and working space in the two directions are provided for the patient.

Classes IPC  ?

• A61H 1/02 - Appareils d'exercice extenseurs ou de ployage

Abrégé

The present invention relates to the field of virtual pre-assembly matching of bridge engineering components based on 3D point clouds, and particularly relates to a method for virtual pre-assembly matching of prefabricated beams based on design-measured point cloud models. An oriented bounding box is computed respectively for 3D point clouds of two prefabricated beams with assembly relationship therebetween, and two point cloud slices and design point cloud are formed; the two point cloud slices are respectively registered with the generated design point cloud by the iterative closest point algorithm; boundary features and corner features of a pre-assembly interface of two components to be assembled are fitted and extracted; and coarse matching and fine matching of the assembly interface are achieved by the Procrustes analysis algorithm and the iterative closest point algorithm in sequence, a matching degree error of the interface is computed, and an assembly result is evaluated. According to the present invention, design point cloud is introduced to achieve the screening of point clouds near features to be extracted, and posture adjustment on components to be assembled is performed by combining a plurality of algorithms, which not only improves the degree of automation and reduces the manual intervention, but also improves the precision of virtual pre-assembly matching and saves the computation time.

Classes IPC  ?

• 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
• G06T 3/14 - Transformations pour le recalage d’images, p. ex. ajustement ou mappage pour l’alignement d’images
• G06T 5/70 - DébruitageLissage

Abrégé

Disclosed in the present invention are a ternary composite high-efficiency antiviral coating material for a surface of a textile and a preparation method therefor. The coating material is prepared by mixing a ternary composite high-efficiency antiviral aggregate powder with a coating slurry, wherein the composition of the ternary composite high-efficiency antiviral aggregate powder is a complex aggregate of small-sheet-diameter graphene oxide, organic antiviral molecules and superfine titania, and the aggregate has a size not larger than 5 micrometers and is a three-dimensional loose aggregate; the organic antiviral molecules are grafted onto the surface of the small-sheet-diameter graphene oxide; and the coating slurry is a water-based coating finishing agent.

Classes IPC  ?

• D06N 3/00 - Cuir artificiel, toile cirée ou matériau similaire obtenu par enduction de nappes fibreuses avec une substance macromoléculaire, p. ex. avec des résines, du caoutchouc ou leurs dérivés
• D06M 11/74 - Traitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec du carbone ou du graphiteTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec des carburesTraitement des fibres, fils, filés, tissus ou des articles fibreux faits de ces matières, avec des substances inorganiques ou leurs complexesUn tel traitement combiné avec un traitement mécanique, p. ex. mercerisage avec du carbone ou ses composés avec des acides graphitiques ou leurs sels
• D06M 11/46 - Oxydes ou hydroxydes d'éléments des groupes 4 ou 14 du tableau périodiqueTitanatesZirconatesStannatesPlombates

Abrégé

A high-sensitivity sensor system based on the principle of PT symmetry. The system comprises: a loss-end/sensitive-end module, which is formed by means of connecting an inductor, a capacitor and a positive resistor in parallel; and a gain-end/readout-end module, which is formed by means of connecting an inductor, a capacitor and a nonlinear negative resistor in parallel. Element parameters of a gain end and a loss end meet the requirements of a PT symmetric electronic system; signal transmission between the two ends is implemented by means of inductive coupling; the system operates in a weak coupling area by means of controlling the distance between inductor coils; and in an initial state, the gain end and the loss end are in a PT symmetric state. When the sensitive capacitance of the loss end/sensitive end changes due to the weak influence of a parameter to be measured, the voltage of the gain end is in a greatly rising state, and the resonant frequency of the system remains unchanged, such that high-sensitivity wireless passive detection under a weak coupling condition can be realized. Further disclosed is a detection method for a sensor system based on the principle of PT symmetry.

Classes IPC  ?

• G01D 5/12 - 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 électriques ou magnétiques
• H02J 50/12 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage inductif du type couplage à résonance

Abrégé

The present application relates to the technical field of antennas, and provides a circularly polarized array antenna and a wireless communication device. The array antenna comprises: a first substrate, any antenna unit symmetrically arranged on the first substrate being a circularly polarized antenna unit; a second substrate, at least one first coupling gap being formed in any resonant cavity symmetrically arranged on the second substrate, and any first coupling gap being overlapped with a first target projection corresponding thereto; and a third substrate provided with an H-shaped junction and a port line, the H-shaped junction and the port line being communicated with each other, at least one second coupling gap being formed in the H-shaped junction, and any second target projection being located in the resonant cavity corresponding thereto. The circularly polarized array antenna provided by the present application can obtain relatively good batch consistency, has an extremely stable radiation pattern, good polarization purity and high radiation efficiency, and can achieve high-stability connection and high-efficiency transmission of mobile communications in millimeter wave bands.

Classes IPC  ?

• H01Q 21/24 - Combinaisons d'unités d'antennes polarisées dans des directions différentes pour émettre ou recevoir des ondes polarisées circulairement ou elliptiquement ou des ondes polarisées linéairement dans n'importe quelle direction
• H01Q 21/00 - Systèmes ou réseaux d'antennes

Abrégé

Disclosed by the present disclosure is a skywave massive MIMO beam structure precoding-based transmission method and a system thereof. The skywave massive MIMO communication base station generates a transmitted signal by utilizing a beam structure precoder, and implements a downlink precoding transmission. The beam structure precoder is composed of a low dimensional beam domain precoder of each user, a beam mapping module of each user, and a beam modulating module, the low dimensional beam domain precoder of each user is a precoder on a beam set of each user, the beam mapping module of each user is configured to map a low dimensional beam domain precoding signal of each user to a complete beam domain transmitted signal, the beam modulating module is configured to multiply a beam matrix by a beam domain transmitted signal vector, and the beam domain transmitted signal vector is a sum of beam domain transmitted signal vectors for each user. The present disclosure can solve the design and implementation complexity problem of skywave massive MIMO downlink precoding transmission, significantly improving the spectrum and power efficiency, transmission rate, and transmission distance of sky wave communication.

Classes IPC  ?

• H04B 7/0456 - Sélection de matrices de pré-codage ou de livres de codes, p. ex. utilisant des matrices pour pondérer des antennes
• H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
• H04W 72/044 - Affectation de ressources sans fil sur la base du type de ressources affectées

Abrégé

Disclosed in the present invention are a multi-layer micro-nano dense electrode fabric, a manufacturing method therefor, and an electrochemical device. In the present invention, a multi-layer micro-nano structure is manufactured on a surface of a carbon nano material conductive fiber by means of electrostatic spinning and liquid phase coating methods, and the conductive fiber is used to prepare a densely arranged alternating electrode fabric by using a weaving method. The fabric has a high specific surface area, and the thickness of the fabric does not exceed 0.1 mm. The fabric is loaded with a nano-particle electrochemical oxidation catalyst, is used for wastewater treatment by an electrolytic method, is made into a wastewater treatment device, has the characteristics such as high water flux, low energy consumption, low cost, bending resistance, and rubbing resistance, is suitable for various liquid-phase electrolytic water purification devices, and is also suitable for indoor gas pollutant elimination and infectious disease pathogen inactivation. The technology meets a wide range of market demands.

Classes IPC  ?

• D03D 1/00 - Tissus conçus pour faire des articles particuliers
• D03D 15/533 - Tissus caractérisés par la matière, la structure ou les propriétés des fibres, des filaments, des filés, des fils ou des autres éléments utilisés en chaîne ou en trame caractérisés par les propriétés des filés ou des fils antistatiquesTissus caractérisés par la matière, la structure ou les propriétés des fibres, des filaments, des filés, des fils ou des autres éléments utilisés en chaîne ou en trame caractérisés par les propriétés des filés ou des fils électriquement conducteurs
• C02F 1/46 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par des procédés électrochimiques

Abrégé

The present invention belongs to the technical field of TOD city design for rail transit stations. Disclosed is a method for flexibly utilizing a rail transit station area plot under three-dimensional slow-traffic path guidance. The method for flexibly utilizing a rail transit station area plot comprises: determining a design scope; at the macroscopic level, selecting a plot pattern mode, the plot pattern mode comprising three plot pattern modes, namely, a grid pattern, a radial grid pattern, and a composite hybrid comprehensive layout formed by integrating historical contexts; at the mesoscopic level, selecting a plot scale mode, the plot scale mode comprising three plot scale modes, namely, a small-scale plot, a large-scale plot, and a composite scale; at the microscopic level, selecting a path layout mode, comprising layout modes of an along-plot path, a through-plot path, and a public square green space path, achieving plot subdivision and merging at the ground level, achieving plot integration and interconnection at the underground level, and achieving plot stitching and connection at the above-ground level; and combining the plot pattern, the scale mode, and a micro-path layout mode to carry out flexible utilization of plots.

Classes IPC  ?

• 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
• G06Q 50/08 - Construction

Abrégé

A multi-parameter collaboration-based rail transit station area spatial renewal intensity definition method and system, relating to the technical field of rail transit station area spatial renewal intensity evaluation. The method comprises: receiving an initial sample area, and performing range definition on the initial sample area to obtain a land parcel in a station area; dividing the land parcel in the station area to obtain different renewal types of land parcels, and using the different renewal types of land parcels to calculate station renewal intensity definition indexes; performing correlation analysis on the station renewal intensity definition indexes to obtain analysis results, generating different analysis groups according to the analysis results, and obtaining rail transit station intensity characteristic research elements on the basis of the analysis groups, wherein the rail transit station intensity characteristic research elements correspond to the station renewal intensity definition indexes; and receiving sample stations, taking the sample stations as input variables according to the station renewal intensity definition indexes corresponding to the different rail transit station intensity characteristic research elements, and performing clustering analysis to obtain a definition result.

Classes IPC  ?

• G06Q 10/0639 - Analyse des performances des employésAnalyse des performances des opérations d’une entreprise ou d’une organisation
• G06Q 50/08 - Construction
• G06Q 50/40 - Procédés d’affaires s’appliquant à l’industrie du transport
• G06F 18/23 - Techniques de partitionnement

Abrégé

The present invention relates to a power device having low on-resistance and a manufacturing method therefor. The power device having low on-resistance comprises various second conductive-type electrical field shielding regions (9), various metal components (11), and various conductive source region components of a preset thickness, as well as a bottom metal layer (8), a first conductive-type substrate (1), a first conductive-type epitaxial layer (2), and a second conductive-type body region layer (5) which are sequentially stacked from bottom to top. The power device is constructed according to design implementation. By arranging a second conductivity-type electrical field shielding region (9) below a gate trench (10), the electrical field can be effectively shielded, so that the reverse electrical field intensity borne by a gate dielectric layer (3) of the device is greatly reduced, increasing the breakdown voltage of the device and enhancing the reliability of the device. Meanwhile, the second conductive-type electrical field shielding regions (9) are designed to be in contact with the second conductive-type body region layer (5) connected to a corresponding gate trench node, so that the problems of reduced switching speed, increased on-resistance, and the like caused by the shielding region are solved from cellular structure design.

Classes IPC  ?

• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 21/336 - Transistors à effet de champ à grille isolée

Abrégé

Disclosed in the present application is a blockchain-based distributed ensemble learning method. On the basis of a designed three-layer blockchain structure, which consists of a mini block, an ensemble block and a key block, by means of a consensus protocol, a miner in a network is enabled to train a base model on a training set after performing sampling with replacement, and aggregates models from other miners; and finally, information of the base model and information of an ensemble model are recorded in a blockchain, such that the whole process of model training, model ensemble and model evaluation is fused into a blockchain consensus, and the whole ensemble learning process is automatically executed in a blockchain network. In this way, the present application can increase the utilization rate of the computing power in a blockchain network by means of a proof-of-useful-work mechanism based on machine learning, and a center node is prevented from being introduced during a model aggregation process, thereby maximizing the degree of decentralization of a blockchain.

Classes IPC  ?

• G06N 20/00 - Apprentissage automatique

Abrégé

The present invention relates to the field of electronic devices of wireless communication systems. Disclosed is an ultra-wideband and high-protection-efficiency filtering energy selective surface, comprising one or more layers of reflecting surfaces; each reflecting surface is mainly composed of a plurality of metal sheets which are located on the same plane, have the same shape and are arranged in central symmetry; a gap for electrical isolation is formed between every two adjacent metal sheets; each gap is provided with a PIN diode; the anodes and cathodes of all the PIN diodes are arranged in a clockwise or counterclockwise direction; and all the gaps form an interconnected gap structure on the plane where the reflecting surface is located. The ultra-wideband and high-protection-efficiency filtering energy selective surface can be achieved by a first-order filtering energy selective surface unit or a second-order filtering energy selective surface unit. The filtering energy selective surface of the present invention has a small surface thickness and a simple structure, can achieve fast roll-off filtering for low-power signals, achieve an ultra-wide suppression stopband, and achieve ultra-wideband and high-efficiency protection for high-power electromagnetic waves.

Classes IPC  ?

• H01Q 15/00 - Dispositifs pour la réflexion, la réfraction, la diffraction ou la polarisation des ondes rayonnées par une antenne, p. ex. dispositifs quasi optiques

Abrégé

Disclosed in the present invention are a rapid measurement device and measurement method for the number concentration of a micro-plastic based on on-chip imaging. According to the present invention, a commercial digital image sensor chip having a small pixel size and a high pixel number is used to construct a micro-plastic measurement device, a micro-plastic sample can be directly loaded to a photosensitive surface of the image sensor chip, and the shadow image of the micro-plastic projected onto the chip can be rapidly obtained. On this basis, the number of micro-plastics in the image is counted by means of a manual analysis method or a machine learning method, and the number concentration of the micro-plastics is calculated on the basis of the volume of the micro-plastic sample, thereby overcoming the bottleneck problem of existing micro-plastic analysis methods being difficult in directly and rapidly collecting wide-field-of-view and high-resolution images of samples. The micro-plastic measurement device of the present invention is portable, the method is simple and easy to popularize, a new technical support is provided for on-site monitoring of environmental micro-plastic pollution, and the present invention can also be applied to rapid measurement of the number concentration of micron particles other than micro-plastics.

Classes IPC  ?

• G01N 15/075 - Recherche de la concentration des suspensions de particules par des moyens optiques

Abrégé

Disclosed in the present invention is a stepped elastic beam for a six-axis force sensor. The stepped elastic beam comprises a central platform, a stepped main beam, a floating beam, rims, and strain gauges, wherein the central platform is connected to the floating beam on the outer side by means of the stepped main beam, and the rims at four corners are connected to the floating beam; 24 strain gauges are pasted to the stepped main beam to form six sets of Wheatstone bridges; and when the force/torque of a certain dimension acts on the center of the stepped elastic beam, the sensor deforms, and the resistance value of the strain gauge at a corresponding position is changed, such that an output voltage of a corresponding bridge is changed, and the numerical value of the force/torque of the dimension can be obtained by measuring the change of the voltage. A structure is simple, the sensitivity is high, and the inter-dimensional coupling is low.

Classes IPC  ?

• G01L 5/1627 - Appareils ou procédés pour la mesure des forces, du travail, de la puissance mécanique ou du couple, spécialement adaptés à des fins spécifiques pour la mesure de plusieurs composantes de la force en utilisant des variations de résistance ohmique de jauges de contrainte

Abrégé

The present invention relates to a flow cell reaction system based on tubular permeable diffusion electrodes, and an operation method. The system comprises a flow cell reactor and a gas-liquid separation device; the flow cell reactor comprises a cathode chamber and an anode chamber which are separated by a proton exchange membrane; the cathode chamber is internally provided with multi-channel tubular permeable diffusion electrodes which are arranged in a linear or array mode and have a plurality of gas guide channels, each tube wall is of a porous layered wall structure, the outlet end of each multi-channel tubular permeable diffusion electrode is blocked, a reaction gas is guided into the inlet end of each multi-channel tubular permeable diffusion electrode through a gas guide tube assembly, and the gas is forced to diffuse to the surface of each electrode through the porous layered wall under the action of a pressure so as to form a gas-liquid-solid three-phase reaction interface; the gas-liquid separation device is used for carrying out gas-liquid separation on a gas-liquid mixture output from the cathode chamber, the separated gas and liquid are respectively returned into the multi-channel tubular permeable diffusion electrodes and the cathode chamber to form a loop, and detection points are provided on the loop to carry out product recovery on the basis of detection conditions. The present invention achieves efficient and stable operation of electro-reduction reaction systems, and is suitable for large-scale industrial application.

Classes IPC  ?

• C25B 9/23 - Cellules comprenant des électrodes fixes de dimensions stablesAssemblages de leurs éléments de structure avec des diaphragmes comprenant des membranes échangeuses d'ions dans ou sur lesquelles est incrusté du matériau pour électrode
• C25B 11/032 - Électrodes à diffusion de gaz
• C25B 15/08 - Alimentation ou vidange des réactifs ou des électrolytesRégénération des électrolytes
• C25B 3/03 - Hydrocarbures acycliques ou cycliques
• C25B 3/07 - Composés contenant au moins un atome d’oxygène
• C25B 3/25 - Réduction
• C25B 3/26 - Réduction du dioxyde de carbone
• C25B 3/09 - Composés contenant au moins un atome d’azote
• C25B 1/23 - Oxyde de carbone ou gaz de synthèse
• C25B 1/27 - Ammoniaque

Abrégé

A variable stiffness hand exoskeleton device based on antagonistic driving, includes a power mechanism, a support base, a spring-link composite transmission mechanism, and a distal finger sleeve connected to a power output end of the spring-link composite transmission mechanism for fingers. The power mechanism drives the fingers to perform rotational movements through the spring-link composite transmission mechanism. The distal finger sleeve is fixed to a distal joint periphery of a finger joint using a first elastic adjustment band, and provides force feedback to an end of the finger joint under driving force of a link structure. An inner surface of the support base is contoured to match a palm, and a back of the support base is provided with a rotary support seat and a motor fixing seat. A motor group of the power mechanism is mounted on the motor fixing seat.

Classes IPC  ?

• A61H 1/02 - Appareils d'exercice extenseurs ou de ployage

Abrégé

gsr2 in the NMOS clamping circuit to recover energy in a process of turning off the drive circuit.

Classes IPC  ?

• H03K 3/00 - Circuits pour produire des impulsions électriquesCircuits monostables, bistables ou multistables
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 3/00 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu
• H03K 17/16 - Modifications pour éliminer les tensions ou courants parasites
• H03K 17/687 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

Disclosed in the present invention is a privacy-preserving method for constructing a building thermal dynamic aggregation model, comprising: firstly, establishing a thermal dynamic model of a single building area, and establishing a building thermal dynamic aggregation model on the basis of an aggregation equation; then on the basis of a measurement equation, carrying out parameter estimation by means of a least squares method, and introducing a regularization term to solve the sparsity problem of aggregation coefficients, to obtain a compact parameter estimation model of the building thermal dynamic aggregation model; and finally, establishing a privacy-preserving parameter estimation method of the building thermal dynamic aggregation model. According to the present method, aggregation modeling is performed on massive buildings by building load aggregators to participate in operation and control of energy systems; moreover, privacy information of building users can be protected from leakage, thereby promoting the mining of building thermal inertia and improving the flexibility of operation and regulation of power systems.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu

Abrégé

gsr1gsr2gsr1gsr2gsr1gsr2gsr2 in the NMOS clamping circuit, respectively, so as to recover energy in a turn-off process of the driving circuit and use the recovered energy for a turn-on process of the driving circuit. According to the present invention, a small number of devices are used, thereby saving the cost and space and facilitating miniaturization and integration. In addition, in the present invention, control signals are simple, the complexity of the control signals is reduced, and the system stability is improved.

Classes IPC  ?

• H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
• H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle

Abrégé

The present invention relates to the field of feature conservation area renewal, and provides a space capacity increase potential analysis method and system for an urban historical feature conservation area. The space capacity increase potential analysis method for the urban historical feature conservation area comprises: inputting an urban area to be studied, and delimiting, within the range, a land parcel that requires a capacity increase study; determining influential solar elements and line of sight elements around the land parcel that requires the capacity increase study, and generating a three-dimensional model by taking a land parcel as a unit; generating a solar envelope of the urban area on the basis of the solar elements, and generating a line of sight envelope of the urban area on the basis of the line of sight elements; performing intersection processing on the solar envelope and the line of sight envelope to generate a height control planar gradient map; and on the basis of the height control planar gradient map, predicting potential texture morphology, and performing quantitative presentation to obtain a data index of an adjusted land parcel. In this way, the problem in the prior art that a precise analysis method is required to perform an effective quantitative analysis on solar and line of sight elements in a designed land parcel is solved.

Classes IPC  ?

• 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

Abrégé

Disclosed is a privacy-preserved method for constructing an aggregate thermal dynamic model of buildings, including the steps of: establishing a thermal dynamic model of one building region, and establishing an aggregate thermal dynamic model of buildings based on an aggregation equation; performing parameter estimation using a least square method based on a measurement equation, introducing a regular term to solve a sparsity problem, and obtaining a parameter estimation model in a compact form for the aggregate thermal dynamic model of buildings; and establishing a privacy-preserved parameter estimation method for the aggregate thermal dynamic model of buildings. Based on the technique, the aggregate modeling is performed on numerous buildings by a building load aggregator to participate in the operation and control of an energy system while preserving privacy of building users, promoting the mining of thermal inertia of buildings and enhancing the flexibility of operation and regulation of a power system.

Classes IPC  ?

• 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

Abrégé

A method of preparing a high-performance green building material based on combustion flue gas carbon dioxide mineralization, including: calculating a raw material ratio; taking each industrial solid waste material to obtain a solid powder; pouring the solid powder, dihydrate gypsum and gel material into a granulator, mixing uniformly, and then taking a part of the mixture, and then stirring the remaining mixture with deionized water sprayed until spherical kernels are formed, uniformly adding the previously-taken part of mixture to prepare an aggregate; performing hydration reaction on the aggregate; drying the hydrated aggregate to prepare spherical ceramic granules; placing the ceramic granules into a reaction kettle and introducing a combustion flue gas containing CO2 for mineralization reaction, and taking out reacted ceramic granules and putting into drying oven for drying to prepare a cold-bonded lightweight aggregate; supplementing water to the lightweight aggregate to perform hydration reaction and obtain a finished product.

Classes IPC  ?

• C04B 40/02 - Choix de l'environnement pour le durcissement
• C04B 28/00 - 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
• C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle

Abrégé

Disclosed is an analytical method for dynamic analysis of a natural gas network in the field of energy system modeling and operational analysis, which includes establishing adynamic model of natural gas transmission according to the conservation equations, and reconstructing the dynamic model into the equations in a heat conduction equation form. The present disclosure directly constructs an analytical method for dynamic analysis of a natural gas network, avoiding approximation errors, numerical dispersion, and dissipation compared with the traditional numerical methods. The discretization process is avoided during the solution, greatly improving the computational efficiency and solution accuracy of dynamic analysis of the natural gas network.

Classes IPC  ?

• G06F 30/18 - Conception de réseaux, p. ex. conception basée sur les aspects topologiques ou d’interconnexion des systèmes d’approvisionnement en eau, électricité ou gaz, de tuyauterie, de chauffage, ventilation et climatisation [CVC], ou de systèmes de câblage
• G06F 111/10 - Modélisation numérique

Abrégé

A horizontal Hall device and a preparation method therefor. The horizontal Hall device comprises: a substrate layer and a BOX layer on the substrate layer; an epitaxial layer is provided on the BOX layer; a well layer is provided on the epitaxial layer; an STI layer is provided on the well layer; sensing electrode pairs and bias electrode pairs are provided on the STI layer; grounding electrodes are provided on the epitaxial layer; and a current blocking layer is provided between every adjacent sensing electrode and bias electrode. The preparation method for the horizontal Hall device comprises: preparing a substrate provided with the BOX layer and the epitaxial layer; performing deep-trench etching on the epitaxial layer, the bottom of the deep trenches being in direct contact with the BOX layer, and filling the deep trenches to form the current blocking layers; performing photolithography and doping on the upper part of the epitaxial layer to form the well layer; performing shallow trench etching on the well layer area to form a shallow trench located on the well layer, and depositing silicon dioxide to form the STI layer; and doping a sensing electrode pair area and a bias electrode pair area to form a heavily doped contact area, and doping the epitaxial layer to form a heavily doped contact layer.

Classes IPC  ?

• H10N 52/00 - Dispositifs à effet Hall

Abrégé

The present disclosure relates to a hysteretance component, which is designed based on its definition, calculation formulas, and port characteristics. By increasing or decreasing hysteretance components in a magnetic circuit, the intensity and effect magnitude of magnetic hysteresis in a vector magnetic circuit can be estimated and controlled from the perspective of magnetic circuit, allowing the vector state of a magnetic flux to be consistent with the desired state. Based on this, an application method is proposed, involving that a target magnetic circuit is formed by connecting reluctance, magductance, and hysteretance components in series, and magnetic circuit parameters of the three components are utilized to quantitatively express magnetization, eddy current, and magnetic hysteresis phenomena, enabling technicians to selectively alter the operating characteristics of the magnetic circuit, vector magnetic quantities, and power of the magnetic circuit by adjusting the parameters.

Classes IPC  ?

• H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
• G01R 33/14 - Mesure ou tracé par points des courbes d'hystérésis
• H01F 41/04 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants pour la fabrication de bobines

Abrégé

An improved gossip-protocol-based method, a device, a piece of equipment and a medium for incentivizing block propagation. By improving the Gossip protocol and embedding block propagation rewards, the block forwarding process is accelerated. The designed signature chain structure records the block forwarding path and ensures that the path information is not tampered with. By combining the signature chain structure with the block generation process, the rewards are ensured to be truly and reliably distributed. A block propagation reward distribution strategy is designed to prevent forwarding nodes from adding pseudonyms in the propagation path. Therefore, the method can reduce the blockchain stale rate and enhance the scalability and consensus performance of the blockchain by accelerating block propagation in the presence of selfish nodes, and addresses the problem that selfish nodes refuse to forward blocks to save communication consumptions in the current blockchain network.

Classes IPC  ?

• H04L 9/40 - Protocoles réseaux de sécurité
• H04L 67/104 - Réseaux de pairs [P2P]

Abrégé

A horizontal Hall device includes a substrate layer and a BOX layer arranged on the substrate layer, where an epitaxial layer is arranged on the BOX layer, a well layer is arranged on the epitaxial layer, an STI layer is arranged on the well layer, a pair of induction electrodes and a pair of bias electrodes are arranged on the STI layer, ground electrodes are arranged on the epitaxial layer, and current barrier layers are arranged between the induction electrodes and the adjacent bias electrodes.

Classes IPC  ?

• G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
• G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
• H01L 21/762 - Régions diélectriques
• H10N 52/01 - Fabrication ou traitement
• H10N 52/80 - Détails de structure

Abrégé

A laterally-diffused metal-oxide-semiconductor device (1), comprising: a substrate (11); a body region (1131) and a drift region (1132) arranged in the substrate (11) in a first direction, a drain region (1133) being provided in the drift region (1132), and a source region (1134) being provided in the body region (1131); a first dielectric layer (121) arranged on the substrate (11) and covering at least part of the body region (1131) and part of the drift region (1132); a first field plate (13) arranged on the side of the first dielectric layer (121) that is away from the substrate (11), the orthographic projection of the first field plate (13) on the substrate (11) being located between the body region (1131) and the drain region (1133), and covering part of the drift region (1132); and a first high-K dielectric layer (141) arranged on the side of the first dielectric layer (121) that is away from the substrate (11) and connected to the end of the first field plate (13) that is close to the drain region (1133), the orthographic projection of the first high-K dielectric layer (141) on the substrate (11) covering part of the drift region (1132).

Classes IPC  ?

• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée

Abrégé

The present invention discloses a method and system for evaluating post-earthquake damage of building groups based on interferometric synthetic aperture radar (InSAR). Method includes: determining an investigation region, acquiring pre- and post-earthquake radar images of a corresponding district, and acquiring radar datasets included in radar images; acquiring a radar line-of-sight (LOS)-direction deformation map of investigation region by processing pre- and post-earthquake radar images using D-InSAR; acquiring a deformation in a main earthquake direction by decomposing an LOS-direction deformation; drawing a deformation classification map of buildings; acquiring pre- and post-earthquake optical remote sensing images of investigation region, and locating post-earthquake collapsed buildings; locating collapsed buildings in deformation classification map, comparing optical remote sensing images with deformation classification map, and locating exact positions of collapsed buildings; and evaluating post-earthquake damage of the buildings by evaluating post-earthquake damage conditions based on position information of collapsed buildings and the deformation classification map.

Classes IPC  ?

• G01S 13/90 - Radar ou systèmes analogues, spécialement adaptés pour des applications spécifiques pour la cartographie ou la représentation utilisant des techniques d'antenne synthétique
• G06T 7/11 - Découpage basé sur les zones
• G06T 7/521 - Récupération de la profondeur ou de la forme à partir de la télémétrie laser, p. ex. par interférométrieRécupération de la profondeur ou de la forme à partir de la projection de lumière structurée
• G06T 7/55 - Récupération de la profondeur ou de la forme à partir de plusieurs images
• G06T 17/05 - Modèles géographiques
• G06V 20/10 - Scènes terrestres
• G06V 20/17 - Scènes terrestres transmises par des avions ou des drones
• G06V 20/50 - Contexte ou environnement de l’image

Abrégé

The present invention discloses a rapid construction method and system for a wireless channel knowledge map. The present invention uses image restoration technology to construct a channel knowledge map, and, by means of recovering a corresponding pixel value in an image matrix, predicts channel knowledge of a specific position, so that channel related knowledge of a user equipment at any position in a target area can be acquired. By means of combining the similarity of an image restoration problem and a channel knowledge map construction problem, and using a Laplacian pyramid frequency band decomposition framework, an input environment map can be decomposed at different frequencies. According to the characteristics of different frequency components, a corresponding sub-network is designed for feature extraction, and finally, the channel knowledge map is reconstructed by means of inverse operation of the Laplacian pyramid. The wireless channel knowledge map construction method provided by the present invention not only implements higher construction precision at lower computational complexity, but also has strong generalization ability for various wireless communication scenarios.

Classes IPC  ?

• G06T 11/00 - Génération d'images bidimensionnelles [2D]

Abrégé

A laterally diffused metal oxide semiconductor device, and a preparation method therefor. The laterally diffused metal oxide semiconductor device comprises at least one cellular structure (10), the cellular structure (10) comprising: a substrate (11); an N-type first well region (12), disposed in the substrate (11); a first section (121), a partition region (122) and a second section (123), provided in the first well region (12) in sequence along a first direction; a P-type first doped region (131) and a P-type second doped region (132), the first doped region (131) being located in the first section (121) and the second doped region (132) being located in the second section (123); and a P-type source region (141) and a P-type drain region (142) provided in the substrate (11) and located at two sides of the first doped region (131), respectively, along a second direction. The first direction is a width direction of a conductive channel, and the second direction is a length direction of the conductive channel.

Classes IPC  ?

• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/36 - Corps semi-conducteurs caractérisés par la concentration ou la distribution des impuretés
• H01L 21/336 - Transistors à effet de champ à grille isolée

Abrégé

The present invention relates to the field of energy system modeling and operation analysis. Disclosed is an analytical method suitable for dynamic analysis of a natural gas network, comprising: establishing a natural gas dynamic transmission model according to a conservation law equation of natural gas transmission, and reconstructing the natural gas dynamic transmission model into a natural gas dynamic heat conduction equation; using a method of variation of parameters to convert the natural gas dynamic heat conduction equation into a system of partial differential equations having homogeneous boundary conditions; determining a general analytic expression of the system of partial differential equations under a constant pressure boundary condition; and on the basis of the superposition property of natural gas transmission, an initial condition and boundary conditions, constructing a practical analytic expression of the natural gas dynamic transmission model based on the general analytic expression. In the present invention, the analytical method for dynamic analysis of the natural gas network is directly constructed, and compared with a conventional numerical method, avoids an approximate error and numerical dispersion dissipation; and a discrete process is avoided in solving, greatly improving the calculation efficiency and the solving precision of the dynamic analysis of the natural gas network.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu

Abrégé

Disclosed is a direct control method and system for an internal potential of a bridge arm of a new energy grid-tied inverter (GTI), the control method including the following steps. Measured values are obtained by measuring a port voltage and a port current of a GTI, instantaneous active and reactive power values are calculated, and a phase angle and amplitude reference of an internal potential of a bridge arm are obtained to generate reference values thereof. The internal potential of the bridge arm is estimated, and an estimated value used as a feedback signal, after being compared with the reference values, is sent to an internal potential controller to obtain a modulating signal, which is sent to a pulse width modulation (PWM) module, realizing direct control of the internal potential of the bridge arm. In the present disclosure, the dynamic performance of the GTI is improved while improving power quality.

Classes IPC  ?

• H02M 7/5387 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur dans une configuration en pont
• G01R 29/12 - Mesure du champ électrostatique
• H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
• H02M 7/483 - Convertisseurs munis de sorties pouvant chacune avoir plus de deux niveaux de tension

Abrégé

The present invention relates to a targeted sensing-oriented twin substructure interaction method and system and the use. The method comprises: acquiring multi-element inspection and monitoring data and finite element influence line data of a main structure; on the basis of the inspection and monitoring data and the finite element influence line data of a non-key area, using a sparsity adaptive matching pursuit algorithm to solve a boundary condition of a key area, so as to achieve data fusion of a first level; for the key area, establishing a refined twin substructure finite element model taking into account the effect of structural degradation and, on the basis of the inspection and monitoring data and the finite element influence line data of the key area, correcting the material attribute of the refined twin substructure finite element model to achieve data fusion of a second level; and calculating a correction force on the basis of the boundary condition of the key area and the material attribute, and using the correction force as an equivalent external load to act on a node of a global finite element model, thus achieving the interaction between a substructure and the main structure. The present invention achieves mutual fusion and common communication between the monitoring data and the finite element model and the interaction between each substructure and the main structure.

Classes IPC  ?

• 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 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

The present invention relates to a targeted perception-oriented twin substructure interaction method and system, and application. The method includes: acquiring multivariate inspection and monitoring data and finite element influence line data of a main structure; solving, on the basis of the inspection and monitoring data and the finite element influence line data of a non-focus region, boundary conditions of a focus region; establishing, for the focus region, a refined twin substructure finite element model, and correcting material properties of the refined twin substructure finite element model on the basis of the inspection and monitoring data and the finite element influence line data of the focus region; and calculating a correction force on the basis of the boundary conditions of the focus region and the material properties, and using the correction force as an equivalent external load to act on nodes of a global finite element model.

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]
• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions
• G06F 111/10 - Modélisation numérique
• G06F 119/14 - Analyse des forces ou optimisation des forces, p. ex. forces statiques ou dynamiques

Abrégé

A full-size alloy phase prediction method based on machine learning. The method comprises the following steps: (1) acquiring a large amount of data of a certain system of alloys by means of thermodynamic calculation, and calculating and generating phases and corresponding volume fractions by means of a given temperature and given alloy components; (2) using the given temperature and the given alloy components as input data and using the generated phases as output data, so as to construct a data set; (3) using the data set to train a machine learning model, so as to obtain a model that can highly precisely classify the phases of the system of alloys and predict the volume fractions of the phases of the system of alloys; and (4) storing the trained model for potential alloy design requirements.

Classes IPC  ?

• G16C 60/00 - Science informatique des matériaux, c.-à-d. TIC spécialement adaptées à la recherche des propriétés physiques ou chimiques de matériaux ou de phénomènes associés à leur conception, synthèse, traitement, caractérisation ou utilisation
• G06N 20/00 - Apprentissage automatique
• G06N 3/0475 - Réseaux génératifs
• G06N 3/084 - Rétropropagation, p. ex. suivant l’algorithme du gradient

Abrégé

A digital-integrated-circuit timing monitoring method based on a graph convolutional neural network. The method comprises: determining a plurality of candidate monitoring nodes in a target circuit, and the connection relationship between the plurality of candidate monitoring nodes (101); determining feature information of the target circuit on the basis of device property information of the plurality of candidate monitoring nodes (102); inputting into a trained target graph convolutional neural network model the feature information of the target circuit and the connection relationship between the plurality of candidate monitoring nodes, such that the graph convolutional neural network model outputs determination results of the plurality of candidate monitoring nodes, wherein the determination results comprise a first determination result indicating that a candidate monitoring node is a monitoring node, and a second determination result indicating that a candidate node is not a monitoring node (103); on the basis of the determination results, which are output by the graph convolutional neural network model, determining at least one effective monitoring node from among the plurality of candidate monitoring nodes (104); and performing timing monitoring on the target circuit on the basis of the at least one monitoring node (105).

Classes IPC  ?

• G01R 31/3185 - Reconfiguration pour les essais, p. ex. LSSD, découpage
• G06N 3/0464 - Réseaux convolutifs [CNN, ConvNet]

Abrégé

Disclosed in the present invention is an aerial manipulator system for measuring the depth of cracks in the substructure of a reinforced concrete bridge, the system comprising a main human-computer interface device, an aerial manipulator, and an end effector, wherein the main human-computer interface device comprises a remote controller and a control computer; the aerial manipulator comprises a drone and a single-degree-of-freedom robotic arm; and the end effector comprises an ultrasonic crack depth measurement mechanism, a shock absorber and a force sensor. In the present invention, the aerial manipulator system is designed to be able to stably contact the substructure of a reinforced concrete bridge and automatically complete crack depth measurement procedures, thereby reducing the high-altitude operation risk and workload of bridge inspectors, and improving the efficiency of crack depth measurement operations.

Classes IPC  ?

• B25J 11/00 - Manipulateurs non prévus ailleurs
• B64U 10/14 - Plates-formes volantes comportant quatre axes distincts de rotors, p. ex. quadcoptères
• B64U 20/87 - Montage des dispositifs d’imagerie, p. ex. montage des suspensions à cardan
• B25J 13/00 - Commandes pour manipulateurs
• B25J 13/02 - Moyens de commande à préhension manuelle
• B25J 19/02 - Dispositifs sensibles
• G01B 17/00 - Dispositions pour la mesure caractérisées par l'utilisation de vibrations infrasonores, sonores ou ultrasonores
• B64U 101/30 - Véhicules aériens sans pilote spécialement adaptés à des utilisations ou à des applications spécifiques à l’imagerie, à la photographie ou à la vidéographie

Abrégé

Disclosed in the present invention is a URLLC multi-connectivity transmission and resource allocation method for industrial automation. The method comprises the following steps: S1, establishing a multi-connectivity technology-based URLLC system model; S2, setting constraint conditions of end-to-end transmission on the basis of quality of service requirements for an industrial automation application; S3, reporting the length of an information byte required for transmission, and determining a bandwidth optimization problem of multi-connectivity data transmission; and S4, executing a resource allocation algorithm to calculate an optimal cross-layer resource allocation solution for the multi-connectivity data transmission. According to the present invention, a URLLC multi-connectivity transmission and resource allocation method for industrial automation is established, to avoid the problem of cellular link failure caused by dynamic changes of channels in a traditional transmission mode; and under the constraints of end-to-end delay, reliability and maximum code length, an optimal cross-layer resource allocation method is provided, to minimize a bandwidth required for multi-connectivity transmission, thereby achieving the objective of saving spectrum resources.

Classes IPC  ?

• H04W 72/0453 - Ressources du domaine fréquentiel, p. ex. porteuses dans des AMDF [FDMA]

Abrégé

The present invention relates to a magnetic capacitor element. The design of the magnetic capacitor element is implemented on the basis of the definition of the element, calculation formulas, and port characteristics. By adding or removing a magnetic capacitor element in or from a magnetic circuit, the strength of magnetic hysteresis in a vector magnetic circuit can be estimated and controlled from the perspective of the magnetic circuit, and the magnitude of the effect caused by magnetic hysteresis is controlled, so that a magnetic flux vector state in the magnetic circuit is consistent with a target magnetic flux vector state. Further, on this basis, an application method is proposed. The magnetic capacitor element is connected in series to a magnetic resistor element and a magnetic inductor element to form a target magnetic circuit. Magnetic circuit parameters corresponding to the three magnetic circuit elements quantitatively represent three physical phenomena, i.e., magnetic resistance, eddy current, and magnetic hysteresis, in the magnetic circuit. By changing different magnetic circuit parameters, a technician can change the operating characteristics of the magnetic circuit in a targeted manner, thereby purposefully changing the vector magnetic quantity and magnetic circuit power in the magnetic circuit.

Classes IPC  ?

• G16C 60/00 - Science informatique des matériaux, c.-à-d. TIC spécialement adaptées à la recherche des propriétés physiques ou chimiques de matériaux ou de phénomènes associés à leur conception, synthèse, traitement, caractérisation ou utilisation
• 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 high-dimensional alloy phase diagram construction method, comprising the following steps: (1) selecting a target alloy system, fixing some components, and setting component and temperature ranges; (2) on the basis of a given component step size and a given temperature step size, traversing the whole phase space to identify emerging phase types; (3) using a hash table technique, allocating a unique index to each possible component and temperature combination, to store a corresponding phase type; (4) traversing hash values of each phase type using a graph search algorithm, and identifying and separating each independent phase space; (5) completing storage of each phase space. The construction method provides an efficient and structured means for alloy design and research, and is suitable for ternary through N-ary alloy systems.

Classes IPC  ?

• G16C 60/00 - Science informatique des matériaux, c.-à-d. TIC spécialement adaptées à la recherche des propriétés physiques ou chimiques de matériaux ou de phénomènes associés à leur conception, synthèse, traitement, caractérisation ou utilisation

Abrégé

The present invention relates to the technical field of calculation, estimation or counting. Disclosed is a critical path sorting method based on a graph neural network. The method comprises: first, obtaining a potential critical path set in a netlist by means of a static timing analysis tool; next, converting a netlist file comprising circuit function information into a graph data structure, and obtaining an initial training set on the basis of a relevant process configuration file; then, inputting the initial training set into a graph neural network for training to obtain a critical unit prediction model, wherein the critical unit prediction model consists of three parts, namely, a deep structure auto-encoder, a nonlinear attribute auto-encoder and a joint error reconstruction module; and finally, quantifying the criticality of each path in the potential critical path set on the basis of critical unit information and a path criticality calculation algorithm in the netlist, and obtaining a critical path sequence under process awareness. According to the method, critical paths in circuits influenced by process deviations can be effectively sorted, providing valuable reference for circuit optimization.

Classes IPC  ?

• G06F 30/337 - Optimisation de la conception
• G06F 30/3315 - Vérification de la conception, p. ex. simulation fonctionnelle ou vérification du modèle utilisant une analyse temporelle statique [STA]
• G06N 3/042 - Réseaux neuronaux fondés sur la connaissanceReprésentations logiques de réseaux neuronaux
• G06N 3/0455 - Réseaux auto-encodeursRéseaux encodeurs-décodeurs
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

The present invention relates to a method for reinforcing a frozen soil foundation by rotary drilling-prefabricated membrane bag lightweight soil piles, comprising: employing a rotary drilling rig to drill holes; using drilling debris, a curing agent, and a bubble group as raw materials to prepare lightweight soil; and at a construction site, prefabricating piles by using molds and a membrane bag to reinforce a frozen soil foundation. The mixing ratio of the lightweight soil according to the parts by weight of the raw materials is: 10-100 parts of a curing agent, 80-100 parts of excavated soil, 2-45 parts of a bubble group, and 20-400 parts of water. According to the present invention, on-site ex-situ prefabrication of lightweight soil piles avoids thawing of frozen soil layers caused by heat of hydration from in-situ pile formation, and also avoids grout leaking and oozing out caused by in-situ mixing and grouting, such that the construction quality is good, and the efficiency is high; the heat conductivity coefficient of the lightweight soil is small, so that the thawing of the frozen soil layers around the piles can be slowed down when the ground temperature rises, thereby effectively improving the stability and freeze-thaw resistance of the frozen soil foundation; the self-weight of the lightweight soil piles is small, improving in disguise the ability of the foundation to bear the overlying load; and the reuse of the drilling debris saves the raw materials and processing costs, reduces construction costs, simplifies the process, and is of great significance for green, low-carbon, and sustainable development.

Classes IPC  ?

• E02D 5/30 - Pieux préfabriqués en béton ou béton armé ou en acier et béton

Abrégé

A robot for cleaning the surface of an underwater cylindrical pier and a cleaning method. The robot comprises a robot body, a power module, an underwater mechanical arm, a visual module, a high-pressure water gun, a cleaning brush module, and a fastening part. The robot adheres to the surface of a pier while working and can move in any direction along the surface. An end of the underwater mechanical arm is equipped with the high-pressure water gun and the cleaning brush module that work cooperatively, the high-pressure water gun being used for large-area washing on the surface of the underwater cylindrical pier, and the cleaning brush module being used for small-range fine brushing on the surface of the underwater cylindrical pier. The cleaning brush module is composed of a cleaning brush head and a six-degrees-of-freedom force sensor, and admittance control is used as the control method for the underwater mechanical arm. In the cleaning process, by adjusting in real time the contact force between the cleaning brush head and the surface of the underwater cylindrical pier, damage to the pier body can be minimized compared with manual cleaning, and thus manual work can be replaced in the comprehensive cleaning of the surface of the cylindrical pier in a complex underwater environment, guaranteeing the safety of personnel, and improving the operation efficiency.

Classes IPC  ?

• B25J 11/00 - Manipulateurs non prévus ailleurs
• B63C 11/52 - Outillage spécialement adapté au travail sous l'eau, non prévu ailleurs

Abrégé

The present disclosure discloses a measurement method for a hierarchical structure of a superblock, which belongs to the technical field of urban design, and includes the following steps of: according to categories of urban block morphology studies, determining “geometry” and “configuration” as cognition perspectives, determining that measurement objects include “network” and “area”, establishing a hierarchy matrix formed by intersection of “perspective” and “object”, dividing morphological characteristic measurement of superblocks into four quadrants, providing an indicator system of block morphological hierarchical structures and a calculation method thereof, and performing visual comparison and analysis on superblocks. The present disclosure provides a scientific method for further exploring the internal mechanism and rule of the block morphology, provides a technical tool for the current situation evaluation of the urban built environment and the future practice optimization direction, and promotes the development of micro-level digital urban design methods.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu

Abrégé

An integrated device and method for the co-production of carbon and hydrogen by means of the stepped pyrolysis-microwave gasification of biomass. The device comprises an integrated reaction system, an internal and external radial energy supply system, and a product separation and collection system, which are in cooperation with each other. The method comprises: first subjecting a raw material to low-temperature pyrolysis, so as to greatly improve the wave-absorbing property of same; then performing microwave gasification and online reforming to prepare a hydrogen-rich gas and co-produce a porous carbon product; and combusting a pyrolysis gas to supply heat for the drying and low-temperature pyrolysis reaction of the raw material, separating and purifying the hydrogen-rich gas to prepare a high-purity hydrogen product, and returning a separated gas as a gasifying agent to a gasification reaction. By means of the integration design of multiple collaborative and integrated systems, the quality of a microwave product and the reaction efficiency are improved by means of low-temperature pre-pyrolysis, the consumption of high-grade electric energy is also greatly reduced, and self-produced low-grade heat energy is recycled for self-heating. The device conducts continuous and reliable operation, is compact and efficient, has a small volume and high overall economical efficiency, and overcomes the problems of huge equipment, a high cost, difficulty of promotion, etc., of a technique for hydrogen production by means of the pyrolysis and gasification of biomass.

Classes IPC  ?

• C10B 53/02 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières contenant de la cellulose
• C10B 57/10 - Séchage
• C10B 47/02 - Distillation destructive des matières carbonées solides avec chauffage indirect, p. ex. par combustion externe avec charge immobile
• C10J 3/20 - AppareillageInstallations
• C10J 3/60 - Procédés

Abrégé

A microporous sound-absorbing ceramic using river and lake sediment and coal-based solid wastes as raw materials, belonging to the field of environment-friendly materials. The microporous ceramic having high sound absorptivity comprises the following raw materials in percentage by mass: 30%-50% of lake sediment, 25%-40% of coal gangue, 15%-20% of diatomite, 40%-60% of water, 1%-3% of a dispersing agent, 1%-3% of a gelling agent and 3%-5% of a foaming agent. A preparation method comprises: drying and grinding the lake sediment to prepare a uniform sediment powder of 100 meshes or above; mixing the sediment powder, coal gangue powder and diatomite powder to prepare mixed powder; adding water, the dispersing agent and the gelling agent to the mixed powder, adding same to a ball mill, and ball-milling same to obtain a uniform mixed slurry; then adding the foaming agent and stirring and foaming same; then performing molding injection, vibration, demolding and other steps to obtain a green body; and finally sintering the green body and cooling same to obtain a finished product. The sound-absorbing ceramic is a porous material, has a high porosity and very small pore diameter, and therefore achieves good sound absorption performance at medium and high frequencies.

Classes IPC  ?

• C04B 38/10 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation en utilisant des agents moussants

Abrégé

A bidirectional ESD protection method and circuit of a GaN enhancement-mode power device, and a dual-gate device. In the method, a double-control switch constitutes an ESD energy discharge path; when a device is in a normal positive-voltage working state, the double-control switch is switched off, and when ESD occurs, the double-control switch is switched on to discharge energy; when the device is in a normal negative-voltage working state, the double-control switch is switched off, and when ESD occurs, the double-control switch is switched on to discharge energy. The circuit comprises a first port and a second port, the two ports are connected to the double-gate switch device, a forward on control assembly, and a reverse on control assembly in parallel, and a first source and a second source of the double-gate switch device are connected to the first port and the second port; the forward assembly comprises a first diode string and a first resistor connected in series, and a series connection end is connected to one gate of the double-gate device; the reverse assembly comprises a second diode string and a second resistor connected in series, and a series connection end is connected to the other gate of the double-gate device. The double-gate device comprises a barrier layer; the first and two sources are respectively arranged on the barrier layer; first and second gates are arranged on first and second p-type cap layers; and the logic state of the two gates is "AND gate".

Classes IPC  ?

• H01L 27/02 - Dispositifs consistant en une pluralité de composants semi-conducteurs ou d'autres composants à l'état solide formés dans ou sur un substrat commun comprenant des éléments de circuit passif intégrés avec au moins une barrière de potentiel ou une barrière de surface
• H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
• H02M 1/36 - Moyens pour mettre en marche ou arrêter les convertisseurs

Abrégé

222.The adjustment of magnetic circuit magneto-impedance is crucial for improving the performance of a power system and an electromagnetic device, and the present invention provides a more convenient and flexible solution for realizing accurate control and performance improvement of a magnetic circuit.

Classes IPC  ?

• H03H 7/38 - Réseaux d'adaptation d'impédance
• G06F 30/36 - Conception de circuits au niveau analogique

Abrégé

A method and system for quantifying semantic variance between neural network representations is provided. Two neural network representations to be compared are first extracted, the weight of each filter in an intermediate layer corresponding to each semantic concept is learned on a reference dataset using the Net2Vec method, then set IoU of each representation for all semantic concepts in the reference dataset are calculated, and finally variance between the set IoU of the two representations for all the semantic concepts are integrated to obtain semantic variance between the two neural network representations. The method solves the problem of lack of accurate measurement on the variance between neural network representations on a semantic information level, and has an accurate measurement effect.

Classes IPC  ?

• G06V 10/75 - Organisation de procédés de l’appariement, p. ex. comparaisons simultanées ou séquentielles des caractéristiques d’images ou de vidéosApproches-approximative-fine, p. ex. approches multi-échellesAppariement de motifs d’image ou de vidéoMesures de proximité dans les espaces de caractéristiques utilisant l’analyse de contexteSélection des dictionnaires
• 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

Abrégé

Six-membered high-entropy foam for hydrogen production by water splitting and preparation method are provided. The foam consists of Ni, Fe, Cu, Co, Mo, and Pt, comprising 10 at %-25 at % of Ni, 10 at %-25 at % of Fe, 10 at %-25 at % of Cu, 10 at %-25 at % of Co, 10 at %-25 at % of Mo, and 10 at %-25 at % of Pt. Catalyst loading of the foam can reach a range of 0.8 mg/cm2-3.2 mg/cm2, which is much higher than the effective catalyst loading of most nano-catalysts. When used as catalyst for hydrogen production by water splitting, the hydrogen evolution overpotential of the surface of the six-membered high-entropy foam is within a range of 36 mV-60 mV, and the foam operates stably at industrial-level current density (500 mA/cm2). The preparation method does not require harsh environment such as high temperature or high vacuum, making the method simple and easy to implement, with low-cost raw materials.

Classes IPC  ?

• C25B 11/089 - Alliages
• C22C 30/02 - Alliages contenant moins de 50% en poids de chaque constituant contenant du cuivre
• C25B 11/031 - Électrodes poreuses
• C25D 3/56 - Dépôt électrochimiqueBains utilisés à partir de solutions d'alliages
• C25D 5/00 - Dépôt électrochimique caractérisé par le procédéPrétraitement ou post-traitement des pièces
• C25D 5/48 - Post-traitement des surfaces revêtues de métaux par voie électrolytique

Abrégé

A variable-rigidity hand exoskeleton device based on antagonistic driving and a method for using same. The variable-rigidity hand exoskeleton device based on antagonistic driving comprises: power mechanisms which are independent of each other and configured for the index finger, middle finger, ring finger and little finger; a support base (1); spring-link composite transmission mechanisms; and fingertip sleeves connected to power output ends of the spring-link composite transmission mechanisms. The power mechanisms implement force feedback by means of the spring-link composite transmission mechanisms; the fingertip sleeves are fixed on the peripheries of distal joints among knuckles by means of first elastic adjustment bands, and the fingertip sleeves provide the force feedback for distal ends of the knuckles under the action of the power of link structures; the inner surface of the support base (1) is arranged in a profiled mode according to the back surface of a complete palm/the back surface of a part of the palm, and rotation support bases and electric motor fixing bases are provided on the back surface of the support base (1); electric motor sets of the power mechanisms are mounted on the electric motor fixing bases; and when the force feedback is provided, the spring-link composite transmission mechanisms are located on the outer side of the palm.

Classes IPC  ?

• B25J 9/00 - Manipulateurs à commande programmée

Abrégé

A ball. At least one wireless communication terminal is provided inside or on the surface of the ball. The wireless communication terminal comprises an elastic substrate and an elastic covering layer, which are made of an elastic material, wherein the elastic covering layer covers the elastic substrate; and a functional module is provided between the elastic substrate and the elastic covering layer, and the circuit of the functional module is a meander-line circuit. A wireless communication terminal of a ball is made of a flexible and elastic material, such that the wireless communication terminal can adapt to a non-two-dimensional curved surface of the ball, and there is no need to additionally design a complex structure or intra-ball support, thereby improving the adaptability and stability between the wireless communication terminal and the ball.

Classes IPC  ?

• A63B 43/00 - Balles avec dispositifs particuliers

Abrégé

An enhanced Koopman control method for a hysteretic nonlinear system. In the method, control based on inverse hysteresis compensation is fused with control based on a Koopman operator, wherein, first, an original system is transformed into a pseudo-linear system by means of inverse hysteresis compensation, a Koopman linear model of the pseudo-linear system is then established in a data drive manner, and finally, a controller is designed on the basis of the Koopman model. Compared with a conventional control method based on inverse hysteresis compensation, an advanced model-based linear controller can be designed on the basis of a Koopman model, thereby effectively improving the control precision and efficiency; moreover, compared with a control method based on a Koopman operator, Koopman modeling is performed on the basis of a pseudo-linear system, thereby greatly simplifying the process of designing an observation function, improving the precision of the Koopman model, and providing a new possibility for further improving the control performance.

Classes IPC  ?

• G05B 11/42 - Commandes automatiques électriques avec les dispositions nécessaires pour obtenir des caractéristiques particulières, p. ex. proportionnelles, intégrales, différentielles pour obtenir une caractéristique à la fois proportionnelle et dépendante du temps, p. ex. P.I., P.I.D.

Abrégé

A static voltage stability margin evaluation method and system, and a terminal device are related to the field of integrated energy system operation. The method includes the following steps: establishing a thermal dynamic model of a heating system; establishing a thermoelectric coupling device model; establishing a static voltage stability margin model of an electric power system that considers thermal dynamics of the heating system; and solving the model to obtain a voltage stability margin. In the present invention, a static voltage stability margin that considers thermal dynamics of a heating system can be obtained, and a Pareto boundary of the static voltage stability margin that considers the thermal dynamics can be obtained through a dual-objective nonlinear optimization method, so that an impact of thermoelectric coupling on voltage stability and an impact of thermal inertia of the heating system on a voltage stability margin can be revealed.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif
• H05B 1/02 - Dispositions de commutation automatique spécialement adaptées aux appareils de chauffage

Abrégé

A soft robot optimization modeling and robust control method based on a fusion prediction equation, comprising: first deriving measurement coordinates on the basis of a fusion prediction equation; then designing an observation function on the basis of the measurement coordinates; then identifying a Koopman model on the basis of the observation function; and finally designing a robust model prediction controller on the basis of the Koopman model. The soft robot optimization modeling and robust control method provides a fusion prediction equation and a derivation method therefor, and accurate, abundant, and non-redundant measurement coordinates can be derived on the basis of the equation, overcoming the problem of single measurement coordinates in a soft robot system, facilitating simplifying the design process of an observation function, further improving the precision of a Koopman model of the soft robot, achieving precise motion control of the soft robot, and enhancing the robustness of a control system.

Classes IPC  ?

• B25J 9/16 - Commandes à programme

Abrégé

A lossless exciting current sampling circuit for an isolated converter includes first and second voltage sampling circuits and a subtraction circuit formed by an operational amplifier. The two sampling circuits sample voltages of the primary winding of an isolation transformer, with outputs fed into the subtracter. The subtracter output is the circuit's output. RC low-pass filters with large time constants are used as primary voltage sampling circuits, realizing integration of voltage differences between the exciting inductance terminals, enabling lossless current sampling without resistors or transformers. The current sampling result is utilized for volt-second balance control, realized along with a hold circuit and comparator which compares the sampling hold result with the current sampling result to generate a control signal.

Classes IPC  ?

• G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
• H02M 1/00 - Détails d'appareils pour transformation
• H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs

Abrégé

The present application discloses an indoor optical wireless communications-oriented general geometry-based stochastic channel modeling method, which belongs to the field of wireless communication channel modeling. The method includes: setting scenario layout and frequency band related parameters; generating an object reflection cluster birth-death process matrix and random numbers for controlling a blocking effect and propagation component classification; initializing a scattering cluster and intra-cluster scatterers; updating and calculating model parameters varying with space and time; calculating a light source radiation intensity, the power distributions of object reflection and particle scattering, and an equivalent reflection coefficient; and calculating a subchannel impulse response, and determining whether a propagation component exists, to generate a final channel impulse response. The general geometry-based stochastic channel modeling method for indoor optical wireless communications of the present invention can utilize the common characteristics of the wireless frequency bands of light and the unique characteristics of the frequency bands of infrared light, visible light and ultraviolet light. By setting corresponding parameters, the established model can support different frequency bands to be flexibly applied to the simulation and performance evaluation of 6G indoor optical wireless communication systems.

Classes IPC  ?

• H04B 10/073 - Dispositions pour la surveillance ou le test de systèmes de transmissionDispositions pour la mesure des défauts de systèmes de transmission utilisant un signal hors service
• H04B 10/114 - Systèmes d’intérieur ou à courte portée
• H04B 10/50 - Émetteurs
• H04B 17/391 - Modélisation du canal de propagation

Abrégé

A satellite communication-oriented geometry-based stochastic channel modeling method includes steps: S1: establishing a satellite channel simulation scenario, and setting scenario layout parameters; S2: initializing the trajectory and speed of a satellite and a receiving end; S3: calculating spatially consistent large-scale parameters, and calculating an effect of rainfall on the large-scale parameters; S4: calculating a path loss, a shadow fading, an atmospheric absorption, and a rainfall attenuation; S5: initializing the central positions of a cluster and a scatterer, and calculating the delay, angle and power of the cluster according to the geometric position information of the transmitting and receiving ends and the scatterer, to generate a channel coefficient; S6: updating the large-scale and small-scale parameters according to the movement of the transmitting and receiving ends and the birth-death process of the cluster, to generate a new channel coefficient; and S7: deriving the statistical characteristics of the channel, and performing simulation analysis.

Classes IPC  ?

• H04B 17/391 - Modélisation du canal de propagation
• H04B 17/309 - Mesure ou estimation des paramètres de qualité d’un canal

Abrégé

Disclosed is an optimization modeling and robust control method for a soft robot based on a fusion prediction equation, including the following steps: deriving measurement coordinates based on the fusion prediction equation; designing an observation function based on the measurement coordinates; identifying a Koopman model based on the observation function; and designing a robust model predictive controller based on the Koopman model. Further disclosed are a fusion prediction equation and a derivation method thereof, which can derive correct, abundant but non-redundant measurement coordinates, overcoming the problem of single measurement coordinates in a soft robot system, thereby being conducive to simplifying a design process of the observation function and further improving the accuracy of the Koopman model for the soft robot.

Classes IPC  ?

• B25J 9/16 - Commandes à programme

Abrégé

A drug for the prevention or treatment of sepsis is provided. The drug comprises an exosome containing a circRNA MOTOR, and a nucleotide sequence corresponding to the circRNA MOTOR is shown in SEQ ID NO: 1.

Classes IPC  ?

• A61K 31/7105 - Acides ribonucléiques naturels, c.-à-d. contenant uniquement des riboses liés à l'adénine, la guanine, la cytosine ou l'uracile et ayant des liaisons 3'-5' phosphodiester
• A61K 9/00 - Préparations médicinales caractérisées par un aspect particulier
• A61P 31/04 - Agents antibactériens

Abrégé

The provided is energy storage method and device for biomass cascade pyrolysis coupled with new energy power generation. The key point of the technical solution is that, with inexpensive, clean and safe biomass as energy storage medium, the redundant unstable electric energy is converted by a cascade pyrolysis energy storage system into an easy-to-store liquid and solid chemical energy in biomass pyrolytic products, and based on use requirements, can be further converted into clean fuels for power generation or exported renewable chemicals, so as to realize continuous stable output of the new energy power generation systems. Furthermore, the cascade pyrolysis energy storage system can, based on the principle of “energy level matching”, fully recover and utilize the electric energy, high-temperature heat energy and low-temperature heat energy generated in pyrolysis processes, thereby maximizing the energy utilization efficiency of the system.

Classes IPC  ?

• C10K 1/04 - Purification des gaz combustibles contenant de l'oxyde de carbone par refroidissement en vue de condenser les matières non gazeuses
• F02G 5/04 - Utilisation de la chaleur perdue dans les gaz d'échappement en combinaison avec d'autre chaleur perdue par les moteurs à combustion

Abrégé

An encircling crawling robot for inspection of underwater piers of highway bridges and a method. Said robot comprises a machine body (1), underwater lighting systems (2), tool containers (3), depth metering modules (4), servo power systems (5), inclination angle measuring modules (6), underwater operation mechanical arms (7), array vision modules (8), synchronous stretching and fixing systems (9) and driven wheels (10). The robot and the inspection method enable stable operation in underwater environments.

Classes IPC  ?

• B08B 9/023 - Nettoyage des surfaces extérieures

Abrégé

2 bubbles and water.

Classes IPC  ?

• C04B 18/12 - DéchetsRésidus provenant de carrières, mines, ou analogues
• C04B 14/04 - Matières riches en siliceSilicates
• C04B 14/36 - Matières inorganiques non prévues par les groupes
• C04B 24/04 - Acides carboxyliquesLeurs sels, anhydrides ou esters
• C04B 24/12 - Composés contenant de l'azote
• C04B 28/10 - Ciments de chaux ou ciments d'oxyde de magnésium
• C04B 38/10 - Mortiers, béton, pierre artificielle ou articles de céramiques poreuxLeur préparation en utilisant des agents moussants
• C04B 103/48 - Stabilisateurs de mousse
• C04B 111/00 - Fonction, propriétés ou utilisation des mortiers, du béton ou de la pierre artificielle
• C04B 111/40 - Matériaux poreux ou légers

Abrégé

Disclosed is a lightweight hand exoskeleton force feedback apparatus, including a driver, a first rotating link, a second rotating link, a first linkage link, a second linkage link, a finger sleeve, and a pressure sensor fixing member; the driver is worn on a back of metacarpal bone of a human hand, the finger sleeve is fixed on an index finger, and the pressure sensor fixing member is fixed below the index finger; when the human hand bends to simulate a state of grasping an object, the driver drives the first rotating link to couple with the first linkage link and the second linkage link through the second rotating link to drive the finger sleeve to bend and stretch, force feedback is applied to the fingertip, and a pressure is accordingly imposed on a pressure sensor of the pressure sensor fixing member, so that closed-loop force feedback control is implemented.

Classes IPC  ?

• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

Disclosed is a safety shared control system based on performance of teleoperator, including a master teleoperation system, a slave robotic manipulator system and a communication module; where the master teleoperation system includes EEG signal measurement of a teleoperator, hand controller operation input, and upper computer software, and the upper computer software includes a graphical user interface (GUI), safety simulation for protecting the safety of a robot, and a PoT model; and the slave robotic manipulator system includes a robotic manipulator, a vision camera and lower computer software, and the lower computer software includes a target recognition algorithm, an autonomous controller, and a shared controller for dynamically allocating human-robot control weights. A safety control system coefficient of the teleoperator is identified through safety simulation prior to actual operation, such that a safety control method for different operating experience is implemented, and safety operation of a teleoperation robot is realized.

Classes IPC  ?

• B25J 9/16 - Commandes à programme
• B25J 3/00 - Manipulateurs de type à commande asservie, c.-à-d. manipulateurs dans lesquels l'unité de commande et l'unité commandée exécutent des mouvements correspondants dans l'espace

Abrégé

Disclosed by the present disclosure is a geometry-based stochastic channel modeling method for an IIoT channel. The method includes the following steps: S1, setting a propagation scenario, propagation conditions, model parameters, an antenna configuration, and the like, S2, generating large-scale parameters with a spatial consistency; S3, determining a number of initial clusters, a number of specular multipath components generated in each of clusters and a number of dense multipath components generated in each of the clusters, determining a visibility of an array antenna to the clusters, generating an initial delay of the clusters, an angle of the clusters, and a power of the clusters, and generating channel coefficients between each pair of transmitter antennas and receiver antennas; S4, updating the positions of the transmitters and the positions of the receivers as well as values for the large-scale parameters according to the motion trajectories of the transmitters and the motion trajectories of the receivers; S5, applying a birth and death process of the clusters to initialize new clusters and update angles, delays and powers of surviving clusters, and generating the channel coefficients; and S6, returning to Step S4, until traversing motion trajectories of the transmitters and the motion trajectories of the receivers; calculating statistical characteristics of the channel, and verifying channel model according to actual measurement data. For the first time, the present disclosure considers 6G channel modeling requirements and dense multipath characteristics, and are verified through actual measurements, which is of great significance for the standardization of IIoT channel models.

Classes IPC  ?

• H04B 17/391 - Modélisation du canal de propagation
• H04B 7/0452 - Systèmes MIMO à plusieurs utilisateurs

Abrégé

The present disclosure discloses a method for predicting a channel based on an image processing and a machine learning, which belongs to the field of the channel prediction. The method introduces an image semantic segmentation technology to identify and segment a scatterer in a scenario image, extracts the effective position information of the scatterer, and identify a scenario in the segmented image. The subsequent feature extraction is performed in a similar scenario through the scenario identification, which facilitates extracting the more tiny environment features. The semantic segmentation images of the known scenarios are jointly input into a feature extraction and channel prediction network to complete the channel prediction. Therefore, the environment information can be input more flexibly through the semantic segmentation technology, so that the accuracy of the model is improved, and the precision higher than that of a traditional channel model is finally obtained, which is beneficial for better satisfying the technical requirement of full coverage for the multi-frequency bands and multi-scenarios in a 6G system.

Classes IPC  ?

• G06V 10/26 - Segmentation de formes dans le champ d’imageDécoupage ou fusion d’éléments d’image visant à établir la région de motif, p. ex. techniques de regroupementDétection d’occlusion
• 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
• 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
• G06V 20/00 - ScènesÉléments spécifiques à la scène

Abrégé

A novel scatterer density-based predictive channel modeling method includes: obtaining channel data with different scenarios scatterer densities through a channel measurement or a simulation; obtaining corresponding channel statistical characteristic parameters through a data preprocessing based on the channel data; constructing a graph dataset by taking scatterer density in different scenarios as main characteristics to enhance a space-time correlation of data; dividing the graph dataset according to a certain proportion, and then using a graph attention network and a gated recurrent unit network to extract correlated channel space-time characteristics and implementing a cross scenario channel prediction. The method can capture channel variations in different scenarios, and obtain channel characteristics under different scatterer densities through high space-time correlated channel characteristics, and has good performance in channel prediction based on scenario.

Classes IPC  ?

• H04W 16/18 - Outils de planification de réseau
• H04W 24/00 - Dispositions de supervision, de contrôle ou de test

Abrégé

Disclosed are an embracing crawling robot for detecting an underwater pier of a highway bridge and a detection method therefor. The robot includes a main body, underwater lighting systems, tool compartments, depth metering modules, servo driving wheels, inclination measurement modules, underwater manipulator arms, vision array modules, synchronized stretching and fixing systems, and driven wheels. The robot is capable of crawling around an underwater pier of a highway bridge and operating stably in an underwater environment. After cleaning surface attachments on the underwater pier, the robot performs visual detection of a disease; and after determining type and location information of the disease, the robot will transmit disease information back. The robot is capable of crawling around the underwater pier of the highway bridge stably at any depths, perceiving depth and visual information under high-speed and turbid water conditions, thereby realizing detection of the disease on the underwater pier.

Classes IPC  ?

• B25J 11/00 - Manipulateurs non prévus ailleurs
• B25J 5/00 - Manipulateurs montés sur roues ou sur support mobile
• B25J 9/16 - Commandes à programme

Abrégé

The present invention provides a lightweight hand exoskeleton force feedback device, comprising a drive, a drive-powered fixing member, a drive fixed rotating shaft fixing member, a drive pull rod fixing member, a first rotating connecting rod, a second rotating connecting rod, a first linkage rod, a second linkage rod, a bearing, a finger sleeve, and a pressure sensor fixing member, wherein the drive is worn on the back of a metacarpal bone of a user by means of a strap; the finger sleeve is fixed to the index finger of a human hand; the pressure sensor fixing member is fixed below the index finger of the human hand by means of the strap; the human hand bends to simulate the condition of grasping an object; the drive drives the first rotating connecting rod to couple, by means of the second rotating connecting rod, the first linkage rod and the second linkage rod to cause the finger sleeve to bend and stretch; force feedback is performed on a finger tip; and a pressure is created on the pressure sensor in the pressure sensor fixing member, such that closed-loop force feedback control is achieved. The device is simple in structure and enables a wearable exoskeleton force feedback device to be lightweight, and discomfort to a user caused by long-time wearing of the device is reduced.

Classes IPC  ?

• A61H 1/02 - Appareils d'exercice extenseurs ou de ployage

Abrégé

Disclosed in the present invention are a preparation method for and the use of a nanoporous carbon material having a continuous structure. The preparation method comprises: mixing an aromatic reactant and a strong dehydrating agent, and then heating the resulting mixture to a molten state, wherein the aromatic reactant is an aromatic compound containing both a nitryl and an amino, or an aromatic mixture obtained by mixing a nitryl-containing compound with an amino-containing compound; and then subjecting the aromatic reactant in the molten state and the strong dehydrating agent to a second instance of heating to 220-1000ºC within 30 s to 50 min, and fully reacting same, so as to obtain a nanoporous carbon material having a continuous structure. The cost of raw materials is low, the preparation conditions are simple, and the preparation speed is fast. The nanoporous carbon material having a continuous structure is used in preparation of a fireproof thermal-insulation material, a solar heat-absorbing material, a seawater purification material, a battery electrode material and an adsorbing material. The carbon material has a density as low as 1 g/L, and also has a large specific surface area of 200-400 m2/g.

Classes IPC  ?

• C01B 32/15 - Matières carbonées nanométriques
• H01M 4/88 - Procédés de fabrication

Abrégé

The present invention describes an electric-thermal-hydrogen multi-energy device planning method for zero energy buildings, including the following specific steps: firstly, constructing operation constraints of electric and thermal devices in the zero energy buildings; secondly, constructing operation constraints of hydrogen devices including the electrolyzer, the fuel cell and the hydrogen storage device; then, in view of constraints on annual zero energy of the buildings, establishing the robust electric-thermal-hydrogen multi-energy device planning model considering source-load uncertainties; and finally, solving the robust electric-thermal-hydrogen multi-energy device planning model of the zero energy buildings by adopting an alternating optimization procedure based column-and-constraint generation algorithm. By using the zero energy buildings, the planning method disclosed by the present disclosure plays important roles in aspects of promoting the development and utilization of renewable energy on the demand side, reducing energy consumption in the field of buildings, and reducing the emission of greenhouse gases.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06F 113/06 - Éoliennes ou parcs éoliens
• G06Q 50/06 - Fourniture d’énergie ou d’eau
• G06Q 50/08 - Construction
• H02J 3/00 - Circuits pour réseaux principaux ou de distribution, à courant alternatif

Abrégé

The present invention discloses a hybrid-equivalence-based power electronics system partition computing method, and relates to the field of power electronics simulation. In the power electronics system partition computing method, by separating series nodes and parallel nodes from internal nodes, converting the series nodes into an impedance form, and converting the parallel nodes into an admittance form, hybrid equivalent conversion of sub-partitions is implemented. By projecting hybrid equivalent matrices and hybrid excitation matrices of the sub-partitions onto a global coupling coordinate system, there is linear additivity between the hybrid equivalent matrices of the sub-partitions, and a series coupling current and a parallel coupling voltage of a system are efficiently solved, thereby implementing parallel partition decoupling computing of the power electronics system.

Classes IPC  ?

• G06F 30/20 - Optimisation, vérification ou simulation de l’objet conçu
• G06F 111/10 - Modélisation numérique
• G06F 113/04 - Réseaux de distribution électrique

Abrégé

The present invention discloses a prediction method for a crosstalk spike in a half bridge of current-source inverter with silicon carbide devices, where, the prediction method includes calculation of the crosstalk voltage spike in the circuit of current-source type double-pulse test and analysis of the effect of each parameter on the magnitude of the crosstalk spike. The prediction method of the present invention analyzes the horizontal conduction crosstalk mechanism between the gate-source junction of the MOSFET caused by the high-frequency switching action of the silicon carbide (SiC) MOSFET and the SiC Schottky diode connected in series, and derives the prediction model for the crosstalk voltage spike in the half-bridge of current-source inverter. Based on the equivalent circuit of the current-source-type double-pulse test and the crosstalk-induced mechanism, the extreme value of crosstalk voltage spike is accurately predicted, which is helpful to analyze the effects of the drive circuit and the parameters of the power circuit on the crosstalk voltage spike through the prediction model.

Classes IPC  ?

• G01R 19/04 - Mesure des valeurs de pointe d'un courant alternatif ou des impulsions
• H02M 7/537 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur

Abrégé

The present disclosure discloses an asymmetric wavelength multiplexing and demultiplexing chip based on inverse design, which belongs to the technical field of optical components, systems or instrument. The chip includes the first-level asymmetric wavelength multiplexing and demultiplexing unit and the second-level symmetric wavelength multiplexing and demultiplexing unit, which is constructed by silicon based photonics integration technology, includes a substrate, a bottom cladding layer, a core layer and a top cladding layer sequentially stacked from bottom to top. The functional regions inside the first-level unit and the second-level unit are designed based on the inverse design algorithms, and are composed of subunits on the submicron or nanometer scale. The chip provided is capable of covering the all-band in the optical communication system, and implementing the non-uniform wavelength division of the energy across all-band; and has an ultra-compact structure, adjustable wavelength intervals, non-uniform transmittance of each wavelength, low channel interval crosstalk.

Classes IPC  ?

• G02B 6/293 - Moyens de couplage optique ayant des bus de données, c.-à-d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
• G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,

Abrégé

Disclosed is an online estimation method for wrist torque based on neural features and LSTM, including following steps: (1) an experimenter keeps his/her arms stationary and applies torque to a torque sensor through his/her wrist; (2) acquiring data from the torque sensor and high-density surface EMG ((HD-sEMG) synchronously; (3) decomposing the HD-sEMG using a blind source separation algorithm to obtain a motor unit spike train (MUST); (4) constructing input and output vectors on the basis of the original HD-sEMG and the decomposed MUST, performing training of the LSTM, and performing polynomial regression of a discharge rate and torque of a neural feature; and (5) calculating a real-time discharge rate (DR) of the CST using a sliding window approach for real-time estimation of the torque.

Classes IPC  ?

• G06N 3/0442 - Réseaux récurrents, p. ex. réseaux de Hopfield caractérisés par la présence de mémoire ou de portes, p. ex. mémoire longue à court terme [LSTM] ou unités récurrentes à porte [GRU]
• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

Disclosed is an EEG recognition method for a natural hand movement based on a time-domain and frequency-domain multi-layer brain network, including: (1) acquiring a multi-channel EEG signal of the natural hand movement; (2) preprocessing the multi-channel EEG signal, and extracting a δ wave, a θ wave, a α wave, a β wave, and a γ wave at each time point; (3) constructing a time-domain multi-layer brain network using a wSAR model; (4) calculating the frequency-domain multi-layer brain network using the phase-amplitude coupling; (5) combining the time-domain multi-layer brain network and the frequency-domain multi-layer brain network, and performing standardization; and (6) calculating metrics of the time-domain and frequency-domain multi-layer brain network and a super-adjacency matrix of a decomposed time-domain and frequency-domain multi-layer brain network, inputting the same to a two-layer graph convolutional network (GCN), and fusing manual, shallow, and deep features for analysis.

Classes IPC  ?

• A61B 5/374 - Détection de la répartition de fréquence dans les signaux, p. ex. détection des ondes delta, thêta, alpha, bêta ou gamma
• A61B 5/00 - Mesure servant à établir un diagnostic Identification des individus

Abrégé

A method for designing a time-domain non-stationary V2V MIMO communication channel emulator includes determining basic parameters for the V2V MIMO communication channel; generating a V2V 2D time-domain non-stationary communication channel environment, by using a MATLAB, that is, the numbers of the scatterers and the positions of the scatterers and the like; importing parameters generated in the previous step into a hardware simulation platform to calculate communication channel parameters for clusters, such as an angle distribution and a power distribution, writing a Verilog code for running, and eventually calculating to obtain a channel impulse response of the time-domain non-stationary V2V MIMO communication channel; and comparing with a statistical characteristic of a theoretical communication channel model, and designing an appropriate hardware diagram of a communication channel emulator. The method supports the simulation of time-domain non-stationary V2V MIMO communication channel, filling the gap in the field of communication channel emulators.

Classes IPC  ?

• H04B 17/391 - Modélisation du canal de propagation
• H04B 7/0426 - Distribution de puissance
• H04L 25/02 - Systèmes à bande de base Détails

Abrégé

A method for estimating a beam domain channel in a spatial non-stationary massive MIMO system includes constructing a beam domain channel model for the spatial non-stationary massive MIMO system by using a visibility region; transforming a problem for estimating the beam domain channel into a problem for reconstructing a sparse channel based on a sparsity of beam domain channel and an influence of power leakage; proposing a beam domain structure-based sparsity adaptive matching pursuit scheme according to a cross-block sparse structure and a power ratio threshold of the beam domain channel; and verifying that the proposed scheme has a lower pilot overhead, a higher accuracy and a higher effectiveness compared to the traditional schemes in simulation results. The method can be effectively applied to communication channel estimation with non-stationary characteristics, and has obvious advantages in estimation accuracy and complexity.

Classes IPC  ?

• H04B 7/06 - Systèmes de diversitéSystèmes à plusieurs antennes, c.-à-d. émission ou réception utilisant plusieurs antennes utilisant plusieurs antennes indépendantes espacées à la station d'émission
• H04B 7/0413 - Systèmes MIMO

Abrégé

A method for estimating channel parameters of a reconfigurable intelligent surface based on a spherical wave assumption includes the following steps. In Step 1, a signal transmission model of a RIS-assisted near-field communication is constructed based on the spherical wave assumption; in Step 2, channel measurement data in different RIS transmission modes are obtained; in Step 3, a delay, an angle of arrival, an angle of departure, a Doppler shift and a polarization matrix of multipath in channels are estimated based on a space-alternating generalized expectation maximization algorithm, and angle parameters, distance parameters and coupling polarization matrices of the multipath at a RIS end are estimated based on a maximum likelihood principle; and in Step 4, the estimated parameters are updated and iterated subsequently. The method can estimate all important channel parameters in the RIS-assisted near-field communication scenario more accurately.

Classes IPC  ?

• H04B 17/309 - Mesure ou estimation des paramètres de qualité d’un canal
• H04B 7/10 - Diversité de polarisationDiversité de direction

Abrégé

Disclosed are an affective haptic regulation system and method based on multimodal fusion, including a haptic optimal parameter adjustment module, a haptic generation module, a visual-auditory generation module, a multi-physiological signal acquisition module, a multi-sensory signal acquisition module, and a multimodal fusion emotion recognition module. The system can fuse multi-physiological signal features with audio and haptic modal features by acquiring a plurality of physiological signals of a user, accurately identify a current affective state of the user in real time through advanced data processing and analysis technology, seek for a haptic parameter with the help of an optimization theory, and achieve proactive regulation of affective state of the user; and the system can overcome the limitations of traditional subjective scale methods, effectively reduce the influence of unstable physiological signals on emotion recognition results, and significantly improve the accuracy of affective detection in the affective haptic regulation system.

Classes IPC  ?

• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur
• G06V 10/80 - Fusion, c.-à-d. combinaison des données de diverses sources au niveau du capteur, du prétraitement, de l’extraction des caractéristiques ou de la classification

Abrégé

The present disclosure discloses a geometry-based stochastic channel modeling method oriented to a wireless communication in an underground mine. The geometry-based stochastic channel modeling method generates basic parameters such as an environment and antennas; generates a three-dimensional time-varying twin-cluster channel environment, that is, a number, a distance and an angle distribution of the clusters, and the like; derives channel parameters such as a position distribution of scatterers, and a power distribution of the scatterers in the clusters; introduces a roughness of a wall and characterizes an influence caused by the rough wall from two aspects of a phase variation and an energy attenuation according to angle parameters, calculates a time-varying channel impulse response and a channel matrix, and implements a simulation channel model and analyzes a statistical characteristic of a channel. The present disclosure adopts a geometry-based stochastic channel modeling method to establish an underground mine channel model, which considers a unique channel characteristic of the rough wall and has a relatively high accuracy, a moderate complexity, and a better universality, and the statistical characteristic of the simulation has a reference value for the design for the communication system in the underground mine.

Classes IPC  ?

• H04B 17/391 - Modélisation du canal de propagation
• H04B 17/336 - Rapport signal/interférence ou rapport porteuse/interférence

Abrégé

The provided is a novel heat-induction decoking device and method tailored for the thermal conversion of solid fuels. The efficient heat-induction decoking device for the thermal conversion of the solid fuels includes: a decoking tank body, which is configured to condense a macromolecular tar in a pyrolysis gas and discharge the condensed tar from a bottom to a tar tank for storage; an electromagnetic induction heating system, which is disposed on an outer wall surface of the decoking tank body to heat the outer wall surface of the decoking tank body; an ultrasonic vibration decoking system, which is disposed on the decoking tank body to enable the decoking tank body to generate vibration by ultrasonic wave so as to enhance tar fluidity. This innovative design not only reduces energy consumption and equipment wear but also extends system operational lifespan, thereby offering substantial improvements in economic and environmental sustainability.

Classes IPC  ?

• C10B 33/00 - Dispositifs de déchargement pour fours à cokeGlissières à coke
• C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon

Abrégé

Disclosed in the present invention are an emotional haptic regulation system and method based on multi-modal fusion. The system comprises a haptic optimal parameter adjustment module, a haptic generation module, a visual-auditory generation module, a multi-physiological signal collection module, a multi-sensory signal collection module and a multi-modal fusion emotion recognition module. The system collects multiple physiological signals of a user, fuses features of the multiple physiological signals with audio and haptic modality features, accurately recognizes the current emotional state of the user in real time by using advanced data processing and analysis techniques, automatically searches for haptic parameters by means of an optimization theory, and actively regulates the emotional state by applying haptic stimuli to the user; and the limitations of conventional methods such as subjective scales are overcome, the impact of unstable physiological signals on emotion recognition results is effectively reduced, and the accuracy of emotion detection in the emotional haptic regulation system is significantly improved. The emotional haptic regulation system has broad application potential in the fields of personal emotion management, medical rehabilitation, audio-video entertainment, etc.

Classes IPC  ?

• G06F 3/01 - Dispositions d'entrée ou dispositions d'entrée et de sortie combinées pour l'interaction entre l'utilisateur et le calculateur

Abrégé

A safety shared control system based on the performance of a teleoperator, the system comprising a master-end teleoperation system, a slave-end robotic arm system and a communication module, wherein a master end comprises the measurement of an electroencephalogram signal of a teleoperator, an operation input of a hand controller, and upper computer software, and an upper computer comprises a man-robot interaction interface, a safety simulation for keeping a robot safe, and a performance-of-teleoperator model; and a slave end comprises a visual camera, a robotic arm and lower computer software, and the lower computer software comprises a target recognition algorithm, an autonomous controller, and a shared controller for dynamically allocating a man-robot weight. By means of safety simulation, a safety control coefficient before a teleoperator actually performs operations is confirmed, a safety control method under different pieces of operation experience is implemented, and the safe operation of a teleoperated robot is ensured; and after a long-term operation, an electroencephalogram signal of the teleoperator is measured to dynamically update a man-robot shared control weight on the basis of the performance of the teleoperator, thereby improving the operation capability of a teleoperation system.

Classes IPC  ?

• B25J 3/00 - Manipulateurs de type à commande asservie, c.-à-d. manipulateurs dans lesquels l'unité de commande et l'unité commandée exécutent des mouvements correspondants dans l'espace

Abrégé

Disclosed in the present invention is a wrist torque online estimation method based on a neural feature and an LSTM, comprising the following steps: (1) an experimenter keeping an arm still, and applying a torque to a torque sensor by means of a wrist; (2) synchronously acquiring data from the torque sensor and a high-density surface electromyography (HD-sEMG) signal; (3) using a blind source separation algorithm to decompose the HD-sEMG signal to obtain a motor unit spike train (MUST); (4) on the basis of an original HD-sEMG signal and the MUST obtained by decomposition, constructing input and output vectors to train an LSTM, and at the same time performing polynomial regression on a discharge rate (DR) of a neural feature and the torque; and (5) calculating a real-time DR of a CST by means of a sliding window for real-time estimation of the torque. The present invention is used for natural control and real-time control of a mechanical prosthetic hand, can provide a better interaction experience for disabled people, and can also be widely applied to the fields of rehabilitation robots, human-computer interaction, etc.

Classes IPC  ?

• G06F 18/23213 - Techniques non hiérarchiques en utilisant les statistiques ou l'optimisation des fonctions, p. ex. modélisation des fonctions de densité de probabilité avec un nombre fixe de partitions, p. ex. K-moyennes
• G06F 18/24 - Techniques de classification
• G06F 17/11 - Opérations mathématiques complexes pour la résolution d'équations
• G06F 17/16 - Calcul de matrice ou de vecteur
• G06N 3/0442 - Réseaux récurrents, p. ex. réseaux de Hopfield caractérisés par la présence de mémoire ou de portes, p. ex. mémoire longue à court terme [LSTM] ou unités récurrentes à porte [GRU]
• G06N 3/0464 - Réseaux convolutifs [CNN, ConvNet]
• G06N 3/08 - Méthodes d'apprentissage

Abrégé

Disclosed in the present invention is a time-frequency multi-layer brain network-based natural hand movement EEG recognition method, comprising: (1) acquiring a multi-channel EEG signal of a natural hand movement; (2) pre-processing the multi-channel EEG signal to extract a δ wave, a θ wave, an α wave, a β wave, and a γ wave at each time point; (3) constructing a time domain multi-layer brain network by using a wSAR model; (4) calculating a frequency domain multi-layer brain network by using cross-frequency coupling (CFC); (5) combining and standardizing the time domain and frequency domain multi-layer brain network; and (6) calculating a multi-layer network metric of the multi-layer brain network and a decomposed super-adjacency matrix, and inputting same to a double-layer graph convolutional network (GCN) to fuse artificial, shallow, and deep features for classification. According to the present invention, a new time-frequency fusion multi-layer brain network is proposed by using the wSAR model and the CFC. In addition, feature information of the multi-layer brain network is comprehensively extracted by using two layers of GCNs, so that the neurophysiological mechanism of brain can be revealed and the decoding precision of the natural action EEG can be improved.

Classes IPC  ?

• G06F 18/24 - Techniques de classification

Abrégé

Disclosed in the present invention are an ITO thin-film transistor with a high withstand voltage and a low on-resistance, and a preparation method therefor. The method comprises the following steps: S10, acquiring a substrate; S20, forming a gate electrode on the substrate; S30, forming a gate oxide on the gate electrode; S40, forming an ITO active layer on the gate oxide; S50, forming an ITO step layer on one side of the ITO active layer; and S60, forming a drain electrode on the ITO step layer, and forming a source electrode on the side of the ITO active layer that is not provided with the ITO step layer. In the present invention, by means of increasing the horizontal distance between the drain electrode and the gate electrode, the breakdown voltage of the ITO thin-film transistor is significantly increased; moreover, the ITO step layer is introduced, and by using the characteristic that the current capacity of an ITO material can be easily regulated by means of regulating the thickness thereof, the on-resistance of an ITO channel in a non-overlapping region is reduced, so that an improved relationship between the on-resistance and the breakdown voltage is obtained.

Classes IPC  ?

• H01L 21/34 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives les dispositifs ayant des barrières de potentiel, p. ex. une jonction PN, une région d'appauvrissement ou une région de concentration de porteurs de charges les dispositifs ayant des corps semi-conducteurs non couverts par les groupes , et avec ou sans impuretés, p. ex. matériaux de dopage
• H01L 21/44 - Fabrication des électrodes sur les corps semi-conducteurs par emploi de procédés ou d'appareils non couverts par les groupes
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/08 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices avec des régions semi-conductrices connectées à une électrode transportant le courant à redresser, amplifier ou commuter, cette électrode faisant partie d'un dispositif à semi-conducteur qui comporte trois électrodes ou plus
• H01L 29/423 - Electrodes caractérisées par leur forme, leurs dimensions relatives ou leur disposition relative ne transportant pas le courant à redresser, à amplifier ou à commuter
• H01L 29/786 - Transistors à couche mince

Abrégé

The present disclosure relates to the technical field of phased array antennas. Provided is a phased array antenna. The phased array antenna comprises a plurality of antenna units (1), each antenna unit (1) comprising: an intermediate substrate (11), which is provided with electric dipoles (112); and short-circuit parasitic branches (111), the number of which is two, wherein the two short-circuit parasitic branches (111) are respectively arranged on two sides of the intermediate substrate (11), and the short-circuit parasitic branches (111) are isolated from the electric dipoles (112). The present disclosure can improve the bandwidth of an end-fire circularly polarized phased array antenna.

Classes IPC  ?

• H01Q 1/38 - Forme structurale pour éléments rayonnants, p. ex. cône, spirale, parapluie formés par une couche conductrice sur un support isolant

Abrégé

A friction stir welding apparatus includes a hollow stirring bar, a clamping mechanism, a welding machine main shaft, a supporting carriage, a cooling system, a coolant tank, a guide rail, and pipes. The cooling system is connected with the outer surface of the welding machine main shaft through two sealed bearings; the clamping mechanism is connected with the welding machine main shaft; the clamping mechanism clamps one end of the stirring bar; the other end of the stirring bar penetrates the welded workpiece to engage with the supporting carriage; the guide rail is installed below the supporting carriage; the pipes includes a first pipe and a second pipe; one end of the first pipe is connected with the outlet of the tank, and the other end of the first pipe is connected with the inlet of the cooling system. The second pipe returns the cooling medium to the tank.

Classes IPC  ?

• B23K 20/12 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage la chaleur étant produite par frictionSoudage par friction
• B23K 20/26 - Appareillage auxiliaire

Abrégé

2222222 standard gas for use in a mercury online monitoring system of an industrial mercury-containing flue gas, to provide a key technical support for the quality and accuracy control of monitoring data in a mercury online continuous monitoring system, and has a broad promotion and use value.

Classes IPC  ?

• C01G 13/04 - Halogénures
• G01N 1/28 - Préparation d'échantillons pour l'analyse

Abrégé

Provided are a naphthoquinone compound, and a preparation method therefor, a pharmaceutical composition thereof and the use thereof. The compound has a structure as represented by formula I, and further comprises a pharmaceutically acceptable salt thereof. The compound can selectively and effectively inhibit the activity of ALDH1A1 enzymes and strongly inhibit the proliferation of a variety of tumor cells, and also has an inhibitory effect on the stemness of tumor cells. The compound has a wide range of applications and can be prepared into an anti-tumor drug that can exert efficacy at both molecular and cellular levels. In addition, the method for preparing the compound is convenient and has strong universality for the structures of various target compounds.

Classes IPC  ?

• C07D 249/22 - Naphtotriazoles
• C07D 403/12 - Composés hétérocycliques contenant plusieurs hétérocycles, comportant des atomes d'azote comme uniques hétéro-atomes du cycle, non prévus par le groupe contenant deux hétérocycles liés par une chaîne contenant des hétéro-atomes comme chaînons
• A61K 31/4192 - 1,2,3-Triazoles
• A61K 31/5377 - 1,4-Oxazines, p. ex. morpholine non condensées et contenant d'autres hétérocycles, p. ex. timolol
• A61K 31/454 - Pipéridines non condensées, p. ex. pipérocaïne contenant d'autres systèmes hétérocycliques contenant un cycle à cinq chaînons avec l'azote comme hétéro-atome du cycle, p. ex. pimozide, dompéridone
• A61P 35/00 - Agents anticancéreux

Abrégé

An unknown environment-oriented intelligent vehicle collaborative positioning method, comprising: first, constructing a collaborative positioning system; second, creating a collaborative positioning observation model; then, training the collaborative positioning observation model for predicting the position increment of an intelligent vehicle; and finally, constructing a collaborative fusion positioning model to acquire the position of the intelligent vehicle. The unknown environment-oriented intelligent vehicle collaborative positioning method disclosed in the present invention realizes intelligent vehicle collaborative positioning in unknown environments having missing prior information and limited observation information.

Classes IPC  ?

• G01C 21/00 - NavigationInstruments de navigation non prévus dans les groupes
• G01C 21/20 - Instruments pour effectuer des calculs de navigation
• G01C 21/16 - NavigationInstruments de navigation non prévus dans les groupes en utilisant des mesures de la vitesse ou de l'accélération exécutées à bord de l'objet navigantNavigation à l'estime en intégrant l'accélération ou la vitesse, c.-à-d. navigation par inertie
• H04W 4/02 - Services utilisant des informations de localisation
• H04W 64/00 - Localisation d'utilisateurs ou de terminaux pour la gestion du réseau, p. ex. gestion de la mobilité

Abrégé

A nanotag includes a gold core, the gold core is sequentially coated with a silver shell and a gold shell, and a Raman dye is arranged between the silver shell and the gold shell; further it discloses a making method for a high-stability SERS nanotag that includes the following steps: a. adding tetrachloroauric acid into ultrapure water, after boiling, quickly adding trisodium citrate, continuously boiling for a few minutes, stopping heating, and cooling; b. adding hexadecyl trimethyl ammonium chloride (CTAC) into product obtained in the step a, stirring, and then adding ascorbic acid and AgNO3, and centrifugating and resuspending in the CTAC; c. adding CTAC into product obtained in the step b, stirring, adding a Raman dye, ascorbic acid and sodium hydroxide, injecting a mixture of tetrachloroauric acid and potassium iodide, and centrifuge the mixture and resuspending in the CTAC.

Classes IPC  ?

• G01N 21/65 - Diffusion de Raman

Abrégé

A method for measuring the normal incidence sound absorption coefficient of anon-standard sized sample is provided. First, a PAM having a specific acoustic impedance and a same thickness is arranged next to the non-standard sized sample to form a flat-surface IAIS having a same cross section as an impedance tube; a relational expression between a surface acoustic impedance of IAIS and the non-standard sized sample and PAM is obtained based on an electro-acoustic analogy method; then surface acoustic impedances of IAIS and PAM are measured in the impedance tube, respectively; and a surface acoustic impedance of the non-standard sized sample is derived from the surface acoustic impedance formula of IAIS, and the normal incidence sound absorption coefficient of the non-standard sized sample is finally obtained.

Classes IPC  ?

• G01N 29/04 - Analyse de solides

Abrégé

An automatic generation method for three-dimensional morphology of ruts in asphalt pavements comprises: constructing a standard rut cross-section representation model, classifying ruts, acquiring detection data of a rutted section of an asphalt pavement, selecting different rut cross-sections at equal intervals in a longitudinal direction of the pavement, denoising and smoothening the rut cross-sections, selecting feature points according to geometric fluctuation features of the rut cross-sections, connecting the feature points and fitting a cross-sectional curve based on an evolution law of rut deformation, and fusing multiple reconstructed rut cross-sections to realize automatic generation and visualization of three-dimensional morphology of a rut.

Classes IPC  ?

• G06T 17/00 - Modélisation tridimensionnelle [3D] pour infographie
• 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

Abrégé

A manufacturing method for a P-type laterally diffused metal oxide semiconductor device includes: forming a N-type buried layer in a substrate, forming a P-type region located on the N-type buried layer, and forming a mask layer located on the P-type region; patterning the mask layer to form at least two injection windows; performing N-type ion implantation by the at least two injection windows; forming an oxide layer; removing the mask layer; performing P-type ion implantation on the P-type region to form a P-type doped region; diffusing the P-type doped region to form a drift region and two P-type well regions, diffusing the high-voltage N-well doped region to form a high-voltage N-type well region, and diffusing the low-voltage N-well doped region to form a low-voltage N-type well region; and forming a source doped region, a drain doped region, and a gate.

Classes IPC  ?

• H01L 29/78 - Transistors à effet de champ l'effet de champ étant produit par une porte isolée
• H01L 21/266 - Bombardement par des radiations ondulatoires ou corpusculaires par des radiations d'énergie élevée produisant une implantation d'ions en utilisant des masques
• H01L 29/06 - Corps semi-conducteurs caractérisés par les formes, les dimensions relatives, ou les dispositions des régions semi-conductrices
• H01L 29/40 - Electrodes
• H01L 29/66 - Types de dispositifs semi-conducteurs

Abrégé

The present invention provides a laser radar point cloud registration method for an urban dynamic environment. The method comprises: first, establishing a data set of a point cloud registration network; then, constructing a point cloud registration network based on multi-task learning; next, training the designed point cloud registration network; and finally, using the trained network to estimate a transformation matrix of two frames of point clouds. According to the method, a three-dimensional point cloud is converted into a two-dimensional distance image, improving the point cloud processing efficiency. According to the method, two tasks of point cloud segmentation and registration are executed, and due to a shared feature extraction module, point cloud registration can be carried out on the basis of reliable features of static reference targets, reducing errors caused by dynamic targets.

Classes IPC  ?

• 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