A method and system for solving bypass-based modular multi-chiplet deadlock include polling each border router by means of time slice round-robin scheduling inside each chiplet; when processing upon arrival of the time slice of the border router, the border router is polled based on the internal time slice of the chiplet in a switchover manner to trigger the bypass mechanism of choke packets, and an output port is reserved between the border router and the destination router by using a look-ahead signal to build a bypass, and reserving a network interface and a rollback mechanism when the bypass packet pops up. The present disclosure aims at achieving deadlock-free in realizing bypass-based modular multi-chiplet design requirements in a multi-chiplet architecture under 2.5D packaging.
The provided is an anti-jamming processing architecture based on a dual-component fusion application of a satellite navigation signal. The anti-jamming processing architecture includes: a receiver matched reception module, configured to receive a satellite navigation signal and separate the satellite navigation signal into a pilot component and a data component; a data channel anti-jamming module, configured to design a filtering weight vector recursive formula and perform anti-jamming on the received data component based on an updated filtering weight vector; a pilot channel anti-jamming module, configured to design a filter weight update formula and perform anti-jamming on the received pilot component based on an updated filter weight; and a data fusion application module, configured to perform message solving and pseudocode ranging respectively based on an anti-jamming data component and pilot component, fuse a pseudocode ranging result and solved message information, and provide a fusion result for a user.
A design method for a satellite navigation signal system with mixed modulation of direct spread spectrum and frequency hopping includes: modulating the spread spectrum code sequence of multipath signal components; mixing and multiplexing with the signal components corresponding to the same frequency point; forming a baseband code sequence; separating signal components corresponding to the baseband code sequence to obtain separated radio frequency signals; recombining and modulating separated radio frequency signals; controlling the frequency hopping pattern by the frequency hopping code sequence if the separated radio frequency signals are authorized signals, and performing mixed frequency synthesis modulation; performing direct combined radio frequency modulation if the separated radio frequency signals are unauthorized signals, and obtaining the recombined signal component; amplifying the signal power to obtain the direct spread spectrum navigation signal.
A Beidou short message communication method and a system for a low-power user terminal are provided. The method includes following steps: by a user terminal, receiving outbound signals broadcast by a central station and forwarded by a satellite transponder, and constructing a short message access frame with a fixed length for transmission; by the central station, receiving and parsing the short message access frame, so as to realize the allocation of time-frequency resource blocks and transmit the time-frequency resource blocks to the user terminal; by the user terminal, transmitting a short message communication frame with a fixed format to the central station; by a communication receiving device of the central station, receiving and sequentially carrying out sampling preprocessing, anti-interference processing, rapid capture and tracking demodulation on the short message communication frame to obtain communication service information, and pushing receipt information to the user terminal to complete an information push.
A method and a device for joint suppression of narrowband and multiple access interference are provided. The method includes: performing time domain windowing processing on a received signal, and performing frequency domain interference processing on a signal after windowing processing to obtain a matched filter and a time domain signal; obtaining reconstructed baseband received data for a signal of each channel; obtaining reconstructed signals after matched filtering; accumulating the reconstructed signals of multiple channels to obtain a reconstructed accumulated value, obtaining a compensation value according to a difference between the time domain signal and the reconstructed accumulated value, and compensating the reconstructed signals with the compensation value to obtain an actual received signal of the each channel; and outputting a joint suppression result.
Provided are a device and a method for multi-angle stereoscopic imaging measurement of precipitation particles, including an optical illumination unit used for illuminating a sampling space; a multi-angle imaging unit used for performing multi-angle imaging on the precipitation particles; a data acquisition control unit used for controlling the optical illumination unit and the multi-angle imaging unit; a data processing unit used for processing and displaying image data of the precipitation particles; and a protection unit used for protecting the optical illumination unit, the multi-angle imaging unit and the data acquisition control unit.
A method and an apparatus for few-shot relation classification and filtering, and a device are provided. The method includes: constructing a coarse-grained filter for filtering an unlabeled corpus to obtain candidate instances with a same entity as a seed instance and with similar semantics to the seed instance; constructing a fine-grained filter for filtering the candidate instances to obtain a candidate instance with a same relation concept as the seed instance; defining the candidate instance as a positive instance set, and defining candidate instances with different relation concepts from the seed instance as a negative sample set; constructing a false positive instance correction module for adjusting and controlling a proportion of the negative sample set used by a classifier during training; training the classifier based on a small number of obtained labeled instances belonging to a newly emerging relation and the adjusted positive instance set and negative sample set.
G06F 18/2415 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on parametric or probabilistic models, e.g. based on likelihood ratio or false acceptance rate versus a false rejection rate
8.
MULTILINGUAL EVENT CAUSALITY IDENTIFICATION METHOD AND SYSTEM BASED ON META-LEARNING WITH KNOWLEDGE
Disclosed are a multilingual event causality identification method and a multilingual event causality identification system based on meta-learning with knowledge. The method includes: partitioning a to-be-processed multilingual dataset into a plurality of sub-datasets; tagging target events corresponding to all data samples in the sub-datasets; obtaining background knowledge for the various events of different language types and combining the background knowledge with a corresponding data sample; basic input samples of all non-target languages in the basic input sample constituting a plurality of basic datasets, and all the remaining basic input samples constituting a target dataset; partitioning support sets and query sets; constructing a multilingual causal identifier; training the multilingual causal identifier based on the support sets and query sets in the plurality of basic datasets to obtain an optimal hyper-parameter; and training the multilingual causal identifier by using the support set in the target dataset, to obtain an optimal non-hyper-parameter.
A method and apparatus for training a few-shot event detection model based on multilingual prompt learning are provided, which includes: acquiring a training data set, applying a multilingual prompt model to any instance to obtain a predicted probability distribution of a trigger tag, so as to obtain a first loss; generating a contrastive instance and a bilingual instance, and performing multilingual prompt and cross-lingual encoding according to the input instance and the bilingual instance by applying the multilingual prompt model to obtain joint event characterization; performing event tag prediction on the joint event characterization by applying a two-level hierarchical prototype network model, and calculating a second loss; performing contrastive learning on respective instances by applying a quaternary contrastive learning module to obtain a third loss; determining a total loss of the few-shot event detection model according to respective losses, and performing model training optimization based on the total loss.
A device and method for simulating influences of strong laser on a cloud-unsaturated air turbulence mixing process, the device comprising: a holder assembly; a cloud simulation chamber (1), wherein temperature and humidity measurement assemblies (6, 8), a drainage assembly (17), and a temperature control assembly (16) are provided inside the cloud simulation chamber (1); cloud generation assemblies (13, 14, 15) in communication with an inner cavity of the cloud simulation chamber (1); a strong laser intervention assembly (10) configured to generate turbulence disturbances at different intensities at desired positions in the cloud simulation chamber (1); and photographing and recording assemblies (22, 9, 18, 20, 21) arranged corresponding to the cloud simulation chamber (1). The cloud-unsaturated air turbulence mixing process can be simulated in a laboratory setting, and the influences of strong laser on the process can be simulated, thereby providing references for physical researches on cloud and for the development of weather modification technology.
The disclosure relates to a permanent magnet-electromagnet hybrid array type magnetorheological polishing device, comprising a polishing mechanism, a main excitation device arranged on the polishing mechanism, and auxiliary permanent magnet sets used for driving magnetorheological liquid to be recycled. The main excitation device is a permanent magnet-electromagnet hybrid array comprising main excitation permanent magnets and fine-adjustment electromagnetic excitation devices connected with the main excitation permanent magnets. Each fine-adjustment electromagnetic excitation device comprises a coil and a coil retaining pile. The main excitation device further comprises a permanent magnet-electromagnet device connecting plate made from a non-magnetically conductive material. The disclosure can improve magnetorheological polishing efficiency, reduce the size of the excitation device, and balance and control the thickness of a ribbon array, thus realizing high-accuracy and high-quality machining of the surfaces of elements and recycling of magnetorheological liquid.
A cloud particle turbulence synchronous measurement device based on digital holography and particle image velocimetry (PIV), comprising a housing (1). A laser emitting arm and a laser receiving arm are arranged on the housing (1), and a sampling area is formed between the two arms. A dual-optical-path holographic measurement unit, a PIV turbulence measurement unit and a control unit (27) are arranged inside the housing (1). The dual-optical-path holographic measurement unit is used for generating two laser beams; one laser beam is transmitted along an original optical path and is emitted by the laser emitting arm, and the other laser beam is redirected and transmitted and is emitted by the laser emitting arm; the two laser beams are incident to the laser receiving arm in a crossed manner through the sampling area and are respectively imaged on two cameras to obtain holographic images. The PIV turbulence measurement unit is used for generating a laser beam to form a sheet light source which is emitted from the laser emitting arm to irradiate a flow field between sampling areas, and acquiring a scattering image of particles. Holographic cloud particle measurement and turbulence measurement can be synchronously realized, and the measurement precision can be improved while the sampling volume is increased. The present invention further relates to a cloud particle turbulence synchronous measurement method based on digital holography and PIV.
G01M 9/06 - Measuring arrangements specially adapted for aerodynamic testing
G01P 5/20 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken by the fluid to traverse a fixed distance using particles entrained by a fluid stream
G01P 5/26 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting optical wave
G03H 1/00 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
13.
Sequential-pulse single-frequency laser power amplification apparatus and sequence controllable multi-laser system
Provided is a sequential-pulse single-frequency laser power amplification apparatus, which comprises a sequence control unit for modulating and switching a source laser to output a primary laser, and a power amplification unit for amplifying the primary laser to output a secondary laser. Also provided is a sequence controllable multi-laser system comprising a plurality of single-frequency and/or multi-frequency laser power amplification apparatuses. This allows a single ultra-narrow linewidth laser device to meet the experimental requirements of multiple platforms in an atomic experiment, achieving high performance at low costs.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/00 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
H01S 3/23 - Arrangement of two or more lasers not provided for in groups , e.g. tandem arrangement of separate active media
14.
Counterfactual context-aware texture learning for camouflaged object detection
A counterfactual context-aware texture learning network system, including: a camera configured to capture an input image; a processor configured to perform camouflaged object detection on the input image; and a memory configured to store a texture-aware refinement module (TRM), a context-aware fused module (CFM), and a counterfactual intervention module (CIM); wherein the processor is configured to execute program instructions of the TRM, the CFM, and the CIM; the TRM is configured to extract dimension features from the input image; the CFM is configured to infuse multi-scale contextual features; the CIM is configured to identify a camouflaged object with counterfactual intervention via the processor; the TRM includes: a receptive field block (RFB) configured to expand a receptive field and extract texture features; and a position attention module (PAM) and a channel attention module (CAM) configured to further refine texture-aware features and obtain discriminant feature representation.
G06V 10/80 - Fusion, i.e. combining data from various sources at the sensor level, preprocessing level, feature extraction level or classification level
G06V 10/54 - Extraction of image or video features relating to texture
G06V 10/70 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
15.
COUNTERFACTUAL CONTEXT-AWARE TEXTURE LEARNING FOR CAMOUFLAGED OBJECT DETECTION
A counterfactual context-aware texture learning network system, including: a camera configured to capture an input image; a processor configured to perform camouflaged object detection on the input image; and a memory configured to store a texture-aware refinement module (TRM), a context-aware fused module (CFM), and a counterfactual intervention module (CIM); wherein the processor is configured to execute program instructions of the TRM, the CFM, and the CIM; the TRM is configured to extract dimension features from the input image; the CFM is configured to infuse multi-scale contextual features; the CIM is configured to identify a camouflaged object with counterfactual intervention via the processor; the TRM includes: a receptive field block (RFB) configured to expand a receptive field and extract texture features; and a position attention module (PAM) and a channel attention module (CAM) configured to further refine texture-aware features and obtain discriminant feature representation.
A massive multiple-input multiple-output channel emulation method and a device based on optical matrix switching are provided. The method is realized based on a massive multiple-input multiple-output channel emulation system, which includes a plurality of channel preprocessing subsystems, an optical switching subsystem, a plurality of channel characteristic emulation subsystems, a self-checking and self-correcting subsystem, a mathematical simulation and monitoring subsystem and a time-frequency synthesis and distribution subsystem. All the subsystems are interconnected by various optical fiber connections, which are used to transmit high-speed data signals, communication information, control instructions, frequency, pulse and time signals, and have the centralized-distributed layout ability of various devices in the system based on long-distance transmission of optical fiber signals, and have the massive parallel expansion ability of the number of system signal input and output links.
H04B 10/079 - Arrangements for monitoring or testing transmission systemsArrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
H04Q 11/00 - Selecting arrangements for multiplex systems
17.
NOVEL ELECTROCHROMIC INFRARED EMISSIVITY DEVICE AND MANUFACTURING METHOD THEREFOR
Disclosed are a novel electrochromic infrared emissivity device and a manufacturing method therefor. The electrochromic infrared emissivity device comprises, sequentially from top to bottom, an infrared transparent substrate layer, a variable infrared emissivity function layer, an infrared high-reflection layer, an electrolyte layer, an ion storage layer, and a counter electrode layer; the infrared high-reflection layer and the counter electrode layer are respectively connected to a positive electrode and a negative electrode; the variable infrared emissivity function layer is doped zinc oxide nanocrystals, doped ions in the doped zinc oxide nanocrystals are trivalent metal ions, and the doping content of the trivalent metal ions is 0.1-10%. According to the novel electrochromic infrared emissivity device manufactured in the present invention, an infrared band of 2.5-14 μm can regulated and controlled by means of an electrochemical method by using localized surface plasmon resonance; and the device has the characteristics of large regulation range, quick response and long cycle life.
G02F 1/1523 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect characterised by the electrochromic material, e.g. by the electrodeposited material comprising inorganic material
A method and system for deduplication caching using an unreliable edge resource include acquiring a total storage capacity of all edge servers, searching for candidate cache files by a similarity-based hierarchical clustering (SHC) method, and acquiring file clusters of all the candidate cache files after clustering, where the candidate cache files each include a deduplicated data chunk, and based on the file clusters and an reliability of all of the edge servers, selecting, by a heuristic algorithm, a file cluster from the file clusters to cache to the edge server until a size of cached content reaches the total storage capacity. The present disclosure makes a trade-off between file availability and space efficiency, thereby effectively improving the cache hit rate in the limited edge caching space.
Disclosed are an isolation method for a high-performance computer system, and a high-performance computer system. The isolation method comprises node-level isolation performed. The node-level isolation comprises: configuring a routing table for each computing node, and configuring, in the routing table, valid routing information for computing node pairs; when any one source computing node needs to communicate with a target computing node, determining, by lookup, whether valid routing information exists between the source computing node and the target computing node according to the configured routing table; if so, allowing the source computing node to communicate with the target computing node; otherwise, forbidding the source computing node from communicating with the target computing node. The disclosure can realize network security isolation of the high-performance computer system, and guarantee the security and reliability of high-performance computers under the premise of ensuring flexible expansion and high availability of high-performance computing resources.
Disclosed are a method for communication, an electronic device, and a computer-readable storage medium. The method includes: determining a first target frequency based on historical sensed information of a destination node; transmitting an RTS frame to the destination node at the first target frequency, where the destination node obtains first sensed information of the source node from the RTS frame, and determines a first optimal receiving frequency of the source node based on the first sensed information; receiving a CTS frame transmitted by the destination node at the first optimal receiving frequency; obtaining second sensed information of the destination node from the CTS frame; determining a second optimal receiving frequency of the destination node based on the second sensed information; transmitting a data frame to the destination node at the second optimal receiving frequency; and receiving an ACK frame transmitted by the destination node at the first optimal receiving frequency.
H04L 5/00 - Arrangements affording multiple use of the transmission path
G01S 7/41 - Details of systems according to groups , , of systems according to group using analysis of echo signal for target characterisationTarget signatureTarget cross-section
G01S 13/56 - Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
The present disclosure provides a thin-layer low-frequency underwater sound insulation metamaterial, including two cover plates and a sound insulation layer. The sound insulation layer is composed of sound insulation components arranged in an array periodically. The sound insulation components each include a sound insulation unit and four connecting units. The sound insulation unit is of a hollow rectangular column structure. The four connecting units are arranged at four corners of the sound insulation unit. Every two adjacent sound insulation units are connected through the connecting units. A long side wall of the sound insulation unit and the corresponding cover plate have an included angle of 0-90°. The metamaterial can obtain a smaller equivalent acoustic impedance in propagation direction of acoustic waves, and compared with a sound insulation material of a square honeycomb structure with the same thickness, the metamaterial has greatly improved sound insulation performance.
A predictive contrastive representation method for multivariate time-series data processing includes: mapping temporal coding information at a current moment and future situational information by using a logarithmic bilinear model to obtain a similarity; training the similarity according to a noise contrastive estimation method and prediction situational label data, and constructing, based on a training result, a predictive contrastive loss function of the temporal coding information at the current moment and the future situational information; sampling the prediction situational label data based on a corresponding optimal loss in the predictive contrastive loss function, optimizing the predictive contrastive loss function by using a direct proportion property between the sampling probability and the similarity, constructing mutual information between the temporal coding information at the current moment and the future situational information based on the optimized predictive contrastive loss function, and performing predictive contrastive representation by maximizing the mutual information.
G06V 10/00 - Arrangements for image or video recognition or understanding
H04N 19/42 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
H04N 19/85 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
H04N 19/503 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
H04N 19/132 - Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
A method and an apparatus for data filtering are provided in this disclosure. The method is applied to a filtering system, including m buckets, each bucket including b storage slots, and each storage slot including a first domain and a second domain. The first domain is configured for recording fingerprint information of an element fingerprint of a data element, and the second domain is configured for matching and recording identifiers corresponding to the fingerprint information stored in the first domain. The method includes: determining an element fingerprint of a data element to be processed in response to an obtained target instruction; and performing a target operation on the data element based on at least the element fingerprint and stored information of the first domain and the second domain in each storage slot. The target operation at least includes one or more of inserting, querying and deleting operations.
The present disclosure provides a spectrum access method and system using prior knowledge-based double-action reinforcement learning, and belongs to the technical field of electromagnetic spectrum. The method includes evaluating and screening prior knowledge, initializing a Q-table, and confirming a current state; and performing Q-learning by: firstly, decomposing an action space into two dimensions with an action in one dimension defined as a channel chosen by an agent, and an action in the other dimension defined as a number of time slots of an access channel, and choosing actions in turn according to the dimensions; then performing spectrum access according to the actions chosen; and finally, updating the Q-table in combination with biased information, wherein the biased information is a reward value. The system is configured to implement the proposed method. By adoption of the method, better performance is achieved, and the efficiency of spectrum access can be improved.
An elastically supported electrode substrate for detecting unbalanced mass of a resonant gyroscope includes an outer frame and an inner structure. A connection part configured to be connected to an anchor of a resonator is arranged at the center of the inner structure, and electrodes are distributed on the inner structure. The inner structure is connected inside the outer frame through elastic beams, and the inner structure has torsional and/or translational resonant modes inside the outer frame. The resonant frequency of the inner structure approaches resonant frequency of an operating mode of the resonator. Since the resonant frequency of the elastically supported electrode substrate approaches the resonant frequency of the operating mode of the resonator, the vibration displacement induced by the unbalanced mass of the elastically supported electrode substrate can be significantly magnified to improve the detection sensitivity.
Disclosed are a terahertz wave balance detection system and method based on a laser-air interaction. The system specifically comprises: a coupler that is used for collimating, combining and focusing a detection laser beam and a terahertz wave, and generating terahertz induced second harmonic (TISH); a β-BBO crystal that is disposed behind a focus, the β-BBO crystal interacting with the residual detection laser beam to generate local oscillation second harmonic (LO), and polarizations of the LO and the TISH being perpendicular to each other; an α-BBO crystal that enables incident LO and TISH to be time-synchronized; a quarter-wave plate that converts the incident LO and TISH into a circularly polarized state; and a balance detection module that performs beam-splitting measurement on the circularly polarized LO and the circularly polarized TISH and then performing differential processing to obtain the electric field intensity of the terahertz wave. According to the technical solution disclosed in the present invention, the order in which the TISH and LO are generated is adjusted, and a differential technique is combined, so that the signal to noise ratio of detection is enhanced, the stability of detection is improved, and the industrial integration of the system is facilitated.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
G02B 27/28 - Optical systems or apparatus not provided for by any of the groups , for polarising
27.
Single-laser light source system for cold atom interferometers
A single-laser light source system for cold atom interferometers, comprising: a reference light module including a narrow-bandwidth laser and a frequency stabilization module and an optical frequency shift module including a first electro-optic modulator and a first narrow-bandwidth optical-fiber filter. The first electro-optic modulator is connected to the first narrow-bandwidth optical-fiber filter by an optical fiber, and the first electro-optic modulator is connected to the laser by an optical fiber. The first electro-optic modulator receives an initial light from the laser, modulates the initial light by a modulation signal with a preset frequency, and generates sidebands with the preset frequency. The first narrow-bandwidth optical-fiber filter filters the optical signal at the output of the first electro-optic modulator to obtain a frequency-shifted light as the +1-order sideband. The frequency-shifted light is used for modulation to obtain a measurement and control light of the cold atom interferometer.
H01S 3/107 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using electro-optic devices, e.g. exhibiting Pockels or Kerr effect
G01B 9/02015 - Interferometers characterised by the beam path configuration
H01S 3/08 - Construction or shape of optical resonators or components thereof
H01S 3/13 - Stabilisation of laser output parameters, e.g. frequency or amplitude
H01S 3/109 - Frequency multiplication, e.g. harmonic generation
H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
H01S 3/136 - Stabilisation of laser output parameters, e.g. frequency or amplitude by controlling devices placed within the cavity
28.
Online trimming device and method for micro-shell resonator gyroscope
An online trimming device and method for a micro-shell resonator gyroscope is provided. A micro-shell resonator gyroscope fixing fixture and a mode test circuit in the device are placed in a vacuum test cavity provided with a circuit interface. The mode test circuit and a host computer are connected through a circuit interface on the vacuum test cavity. The gyroscope fixing fixture is provided with a signal interface, and the electrodes on the gyroscope substrate are connected to the signal interface. The signal interface on the fixture is connected to the mode test circuit. The laser etching module is located at the top of the device. An opening is formed in the gyroscope fixing fixture. The vacuum test cavity is provided with a transparent trimming window. The laser acts on the edge of the resonant structure of the gyroscope through the trimming window and the through hole of the fixture.
G01C 19/56 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems [MEMS]
29.
LARGE-SCALE MULTI-INPUT MULTI-OUTPUT CHANNEL SIMULATION METHOD AND APPARATUS BASED ON OPTICAL MATRIX EXCHANGE
Provided are a large-scale multi-input multi-output channel simulation method and apparatus based on optical matrix exchange. The method is implemented on the basis of a large-scale multi-input multi-output channel simulation system, and the large-scale multi-input multi-output channel simulation system comprises a plurality of channel preprocessing subsystems, an optical switching subsystem, a plurality of channel feature simulation subsystems, a self-checking and self-correcting subsystem, a mathematical simulation and monitoring and controlling subsystem, and a time-frequency integration and distribution subsystem. Every subsystem is connected by various types of optical fibers to achieve interconnection and intercommunication, so as to transmit a high-speed data signal, communication information, a control instruction, a frequency, a pulse, a time signal, etc. The subsystems have a centralized-distributed deployment capability of various types of devices in a system that is based on long-distance transmission of an optical fiber signal, and have a large-scale parallel scaling capability of a quantity of system signal input and output links.
A jet polishing device capable of stably forming a Gaussian removal function includes: an auxiliary mounting mechanism; a jet machining mechanism. The jet machining mechanism is connected with the auxiliary mounting mechanism, the jet machining mechanism includes a rotation driving assembly, a positioning assembly and a jet machining assembly, the positioning assembly includes a linear guide rail, a slide mass, a first laser and a second laser, the rotation driving assembly is connected with the linear guide rail, the slide mass is slidably connected to the linear guide rail, the first laser is fixedly arranged relative to the linear guide rail, the jet machining assembly includes a mounting bracket fixedly connected with the slide mass, a nozzle mounting body rotatably connected to the mounting bracket and a nozzle arranged on the nozzle mounting body, and the second laser is connected with the nozzle mounting body.
B24C 1/08 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for polishing surfaces, e.g. by making use of liquid-borne abrasives
B24B 49/16 - Measuring or gauging equipment for controlling the feed movement of the grinding tool or workArrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation taking regard of the load
B24C 1/04 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
B24C 3/04 - Abrasive blasting machines or devicesPlants characterised by the arrangement of the component assemblies with respect to each other stationary
Provided is a knowledge graph fusion method based on iterative completion, which includes: obtaining multiple knowledge graphs, and identifying each of entities of the multiple knowledge graphs; performing structure vector representation learning on each of entities to obtain a structure vector of each of entities, and performing entity name vector representation learning on each of entities to obtain an entity name vector of each of entities; determining a structural similarity between the entities according to the structure vector of each of entities, and determining an entity name similarity between the entities according to the entity name vector of each of entities; constructing a degree-aware-based co-attention network, and calculating an entity similarity between fused entities through the degree-aware-based co-attention network; and obtaining a high-confidence entity pair according to the entity similarity between the fused entities, and performing knowledge graph completion by iterative training to obtain fused knowledge graphs.
A method for predicting matching degree between a resume and a post, and a related device are provided in this disclosure. In the method for predicting the matching degree between the resume and the post, and the related device according to this disclosure, firstly the semi-structured keys and values in post information and resume information and their source are obtained. Then, the matching degree between the resume information and the post information is predicted by a prediction model including a cascaded pre-trained language model, a Transformer encoder and a single label classification model, based on the keys and values of a respective post information and resume information attribute, and corresponding source representations. Thus, by comprehensively searching internal interaction and external interaction of semi-structured multivariate attributes in person-post matching, the matching result is more accurate.
A laboratory internal wave intelligent measurement system, comprising a measurement tank (1). One end of the measurement tank (1) is provided with a first measurement device (2), a movable device (3) is provided on the measurement tank (1), and a second measurement device (4) is provided on the movable device (3); the first measurement device (2) comprises a first fixed frame (201), a second fixed frame (202) is mounted on one side of the first fixed frame (201), a first fixed plate (203) is mounted on one side of the second fixed frame (202), and a conveying device (5) is fixedly mounted on the first fixed plate (203); the second measurement device (4) comprises a third fixed frame (401), a second fixed plate (402) is provided on the third fixed frame (401), a sliding table air cylinder (403) is fixedly mounted on one side of the second fixed plate (402), and a mounting block (404) is fixedly mounted at an output end of the sliding table air cylinder (403); the movable device (3) comprises a first servo motor (301), a first threaded rod (302) is connected to an output end of the first servo motor (301) by means of a coupling, and the first threaded rod (302) is threadedly connected to one side of the third fixed frame (401). Internal wave detection is convenient and accurate.
An intelligent wave measurement system in a laboratory, comprising: a simulation box (1), a tempered glass plate (2) being fixedly provided on each surface of the simulation box (1); a wave-making and energy-absorbing mechanism which is fixedly mounted in the simulation box (1) and comprises a wave-making assembly and an energy-absorbing assembly; a mobile mechanism which is used for carrying a wave detector (35) to perform movement adjustment in the simulation box (1) and comprises a horizontal movement mechanism for horizontal movement and a lifting/lowering mechanism for lifting/lowering adjustment; and a window which is used for maintaining and detecting the interior of the simulation box (1) and comprises a hinged opening/closing window and locking assemblies for locking and supporting the opening/closing window. The system facilitates detection of waves at different positions in the simulation box (1), can implement wave making and energy absorbing, and facilitates maintenance and overhaul.
Disclosed is a method for distinguishing sunny-rainy weather based on time division long-term evolution network, including the following steps: acquiring sunny-rainy feature by extracting communication measurement statistics of time division long-term evolution network base stations in a certain area; establishing a training set according to that observation result of multiple statistical periods, multiple base stations and multiple rain gauges in the region; establishing a sunny-rainy discrimination model combined with machine learning binary classification algorithm, so as to realize the identification of rainfall events covered by a single base station; calculating the reliability of rainfall events at specific locations based on the comprehensive judgment results of multiple base stations.
H04L 41/16 - Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using machine learning or artificial intelligence
G01W 1/06 - Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed giving a combined indication of weather conditions
The disclosure relates to a method and device for identifying unknown traffic data based on a dynamic network environment. The method includes following steps. The known traffic in the network data is classified by using the known network traffic classification model, then the preliminary determination is performed according to a classification prediction result, network data preliminarily determined as the unknown traffic data is classified by using the adaptive clustering method, and then respective classes are identified by using a similarity coefficient estimation method so as to identify the classes of the malicious traffic and the normal traffic, that is, to further identify and learn the unknown traffic data, and transform it into known traffic data, and then the known network traffic classification model is trained and updated again with the new known traffic data.
Disclosed in the present invention is a preparation method for a nanowire silver film for packaging and interconnection of a large-size power semiconductor integrated circuit, comprising: diluting and purifying a silver nanowire mother liquor, carrying out pressure filtration or suction filtration, and drying to obtain a nanowire silver film. The preparation method provided in the present invention is simple in process, low in cost, and controllable in film layer thickness. The nanowire silver film prepared in the present invention has the advantages of easy film formation, less impurities such as organic matters, relatively high structural strength, low-temperature sintering, convenient and efficient use, and high reliability, and after hot-pressing and sintering, the film layer has the characteristics such as high thermal conductivity, high electrical conductivity, and low porosity.
B82Y 40/00 - Manufacture or treatment of nanostructures
B82Y 30/00 - Nanotechnology for materials or surface science, e.g. nanocomposites
B22F 9/24 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
Disclosed in the present invention is a sunny and rainy area division method based on a time division long-term evolution network, comprising: extracting communication measurement statistics of a time division long-term evolution network base station in a certain area to obtain a sunny and rainy characteristic quantity; establishing a training set according to the multi-statistical period, multi-base station and multi-rain gauge observation results in the area; establishing a sunny and rainy area division model in combination with a machine learning binary classification algorithm, to realize rainfall event recognition of the coverage range of a single base station; and calculating the credibility of a rainfall event at the specific position on the basis of the multi-base station comprehensive judgment result. According to the method, on the basis of a time division long-term evolution network measurement report statistical result, effective recognition of sunny and rainy events in an area range can be realized, and the method can be widely applied to the field of ground meteorological and hydrological information remote sensing.
A device and method for measuring a liquid flow velocity on the basis of an alternating magnetic field. The device comprises a measurement chamber (1), a flow-in pipeline (4) and a flow-out pipeline (4) which are used for liquid to pass through, electrode plates (2) and a Helmholtz coil (3) which are provided outside the measurement chamber (1), and an integrated operational amplifier, a filter and an oscilloscope which are connected to the electrode plates (2), wherein the power supply of the Helmholtz coil (3) is alternating current. The method comprises: adding an electrolyte into liquid to be measured to improve the measurement precision, measuring a voltage between the electrode plates (2) by means of the oscilloscope, and then calculating the flow velocity of the liquid in the measurement chamber (1) by using a Hall effect formula. A signal is loaded to a high-frequency component by means of the alternating magnetic field, high-precision measurement of low-velocity liquid is achieved by means of amplification and filtering, and the error can be controlled to be 1%.
G01P 5/00 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft
G01F 1/58 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using electric or magnetic effects by electromagnetic flowmeters
40.
Method and system for hand pose recognition, device and storage medium
The disclosure relates to a method and a system for hand pose recognition, a device and a storage medium are disclosed in embodiments of the disclosure. The method includes: capturing a RGB image of a hand from a RGB camera and capturing a depth image of the hand from an active depth camera, so as to obtain a hand pose data set according to the RGB image and the depth image; processing the hand pose data set to obtain a 3D joint position, and taking the 3D joint position as a data set for training a software model; extracting the RGB image by a feature extractor based on a depth neural network to obtain a feature map of a hand pose; and processing the feature map according to an attention mechanism to obtain a global feature map of the hand pose.
G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestriansBody parts, e.g. hands
G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
G06V 10/77 - Processing image or video features in feature spacesArrangements for image or video recognition or understanding using pattern recognition or machine learning using data integration or data reduction, e.g. principal component analysis [PCA] or independent component analysis [ICA] or self-organising maps [SOM]Blind source separation
G06V 10/42 - Global feature extraction by analysis of the whole pattern, e.g. using frequency domain transformations or autocorrelation
41.
OZONE LAYER PREDICTION ALGORITHM BASED ON ARTIFICIAL INTELLIGENCE
33-8h values; S5, establishing a new hyperchaotic system; S6, establishing an artificial neural network; S7, establishing a chaotic artificial neural network; and S8, using the chaotic artificial neural network to perform long- and short-term prediction. The present invention is conducive to simplifying a research process of traditional numerical weather prediction methods; and the traditional numerical weather prediction methods tend to be relatively complex, and have high requirements for calculation. The similarity between a CANN operation used in the present invention and other neural networks is that the CANN operation does not rely on a complex relationship between parameters and outputs, but relies on the constant change of weights, such that the parameters are tightly associated with the outputs, thereby avoiding tedious mathematical modeling.
G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
G06F 30/28 - Design optimisation, verification or simulation using fluid dynamics, e.g. using Navier-Stokes equations or computational fluid dynamics [CFD]
G06N 3/04 - Architecture, e.g. interconnection topology
42.
ELECTROMECHANICAL CONTROL SYSTEM FOR FREE FALL EXPERIMENT
An electromechanical control system for a free fall experiment. A single-chip microcomputer module is used for integrated control, a gating device releases a small ball according to a control instruction and a control cycle to perform the free fall experiment and can start an experiment starting point at a regular time/on time according to experiment requirements, and a ball feeding device enables the small ball for the free fall experiment to be conveyed back to the gating device, thereby achieving recycling and accurate control of the small ball. The single-chip microcomputer module can automatically record a time difference of the small ball for the free fall experiment by means of a photogate, obtain a distance relation of the photogate at the same time to calculate a local gravitational acceleration, can electrically adjust a position and height difference of the photogate by means of an instruction, and further can capture the whole experiment process of small ball falling in real time, thereby ensuring electromechanical control coordination synchronization in the whole experiment process, and improving the intelligent and informatization degree of the experiment.
G09B 23/10 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for physics for statics or dynamics of solid bodies
A ball feeding device for a free fall experiment, the device comprising a ball intake pipe (1) and a ball intake housing (2). The tail end of the ball intake pipe (1) is in communication with a first end of the ball intake housing (2); a ball passage is provided inside the ball intake housing (2); a ball outlet (4) is formed at a second end of the ball intake housing; the first end of the ball intake housing (2) is arranged higher than the second end thereof; a material blocking bracket (5) is rotatably connected to the ball intake housing (2); a first blocking portion and a second blocking portion are connected to the material blocking bracket (5); the first blocking portion corresponds to the ball outlet (4), and the second blocking portion corresponds to the ball passage; and when the material blocking bracket (5) rotates to different positions around the ball intake housing (2), the state in which the first blocking portion blocks the ball outlet (4) and the state in which the second blocking portion blocks the ball passage are switched, such that balls completing the free fall experiment can be automatically and orderly fed in sequence to be transported to an initial point for the next experiment, without needing an on-site operation and manually collecting the falling balls by an operator, thus the orderly progress of the experiment is guaranteed and the efficiency of the experiment is improved.
Provided in the present utility model is a ball transfer device for a free fall experiment, the device comprising a ball conveying assembly and a ball receiving assembly. The ball conveying assembly comprises a transfer module for up and down circular transfer. The ball receiving assembly comprises a ball receiving device connected to the transfer module, wherein a first end of the ball receiving device is provided with an opening through which a ball passes; the ball receiving device is arranged in an inclined manner; when the ball receiving device rises along with the transfer module, the first end of the ball receiving device is higher than a second end thereof, such that the ball enters the ball receiving device for storage; and when the ball receiving device descends along with the transfer module, the first end of the ball receiving device is lower than the second end thereof, such that the ball rolls out of the ball receiving device. By means of the present utility model, the ball completing the free fall experiment can be automatically and orderly transported back to an initial height position of the experiment again for the next experiment, without the need for an operator on-site to perform operations, manually collect the falling ball, and place the ball at the initial position.
An intelligent free fall motion experimental instrument, comprising a structural frame (100) provided with a ball receiving assembly (200), a ball stopping assembly (300), a free fall assembly (400), a ball feeding assembly (500), and a ball conveying assembly (600). The ball receiving assembly (200) conveys a small ball (700) to the ball stopping assembly (300). The ball stopping assembly (300) enables the small ball (700) to be positioned at a falling starting point of the free fall assembly (400) and triggers the small ball (700) to freely fall. The free fall assembly (400) comprises a vertical free fall channel. The free fall channel is provided with a monitoring device for monitoring the free fall experiment process. The ball feeding assembly (500) collects the small ball (700) completing the experiment, and then feeds same to the ball conveying assembly (600). The ball conveying assembly (600) lifts and conveys the small ball (700) to the ball receiving assembly (200), so that the small ball (700) is recycled. The connection and matching are compact, fully automated control is adopted, an operator does not need to operate on site or manually collect the falling small ball (700), and the experiment efficiency and accuracy are significantly improved.
G09B 23/10 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for physics for statics or dynamics of solid bodies
46.
Training method for robust neural network based on feature matching
A training method for a robust neural network based on feature matching is provided in this disclosure, which includes following steps. Step A, a first stage model is initialized. The first stage model includes a backbone network, a feature matching module and a fullple loss function. Step B, the first stage model is trained by using original training data to obtain a second stage model. Step C, the second stage model is attacked so as to generate PGD adversarial samples of the original training data, and the second stage model is trained again with the generated adversarial samples and the original training data. Step D, training parameters are adjusted and the second stage model is trained again, and parameters for which the model has highest accuracy on an original test set are saved.
G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
G06F 16/58 - Retrieval characterised by using metadata, e.g. metadata not derived from the content or metadata generated manually
G06F 16/56 - Information retrievalDatabase structures thereforFile system structures therefor of still image data having vectorial format
G06V 10/75 - Organisation of the matching processes, e.g. simultaneous or sequential comparisons of image or video featuresCoarse-fine approaches, e.g. multi-scale approachesImage or video pattern matchingProximity measures in feature spaces using context analysisSelection of dictionaries
47.
SCHEDULING METHOD FOR UNRELATED PARALLEL MACHINE AND RELATED DEVICE THEREFOR
A scheduling scheme for an uncorrelated parallel machine is provided in this disclosure, in which a complex overlapping relationship between time windows are analyzed deeply and the upper bound for the linear relaxation of the model is improved. A new preprocessing algorithm is designed, which can successfully schedule more objects to be processed. Specifically, firstly, the first variable indicating whether the object to be processed is scheduled to the time window corresponding to the implementer and the second variable indicating the start time when the object to be processed is allocated to the time window are introduced into the model, and then conflicts or relationships between the time windows are analyzed, the corresponding scheduling scheme can be obtained according to different situations and the scheduling can be performed according to the scheduling scheme. A new improved mixed integer linear programming model (MILP) is obtained.
A dynamic spectrum sharing method based on user online learning and low-overhead cooperation is provided. In the method, a secondary user (SU) obtains spectrum sharing scene information and requirement parameters; then initializes state parameters and spectrum sensing parameters of a channel. At the beginning of each slot, the SU determines whether a direct transmission condition is met according to the transmission condition of the previous slot, and directly continues transmission on the channel of the previous slot or obtains an idle channel according to the channel state and spectrum sensing for transmission, and updates state parameter and spectrum sensing parameter. Finally, an SU base station performs conflict coordination according to the channel occupancy condition for a fixed number of slots. Hence, low-overhead and efficient spectrum sharing is realized by the SU learning the channel state and the transmission condition, such that the spectrum utilization rate in a high user density and dynamic spectrum environment can be effectively improved.
A gear-based mechanical metamaterial with continuously adjustable elastic parameters in a large range is provided. The gear-based mechanical metamaterial includes a gear array, a frame and connecting shafts. The gear array is formed by periodically extending mechanical metamaterial cells along an x direction and a y direction. Each of the mechanical metamaterial cells is formed by arranging a multiple gears. Adjacent gears of the multiple gears are meshed with each other. Each of the multiple gears includes a center hole and two centrosymmetric irregularly-shaped holes. A thickness of an elastic arm between the each of two centrosymmetric irregularly-shaped holes and an outer wall of a corresponding one of the multiple gears is uniformly increased or decreased. Each of the connecting shafts is arranged in a center hole of a corresponding one of the multiple gears.
F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
The present disclosure discloses a Single-Event Transient (SET) pulse measuring circuit capable of eliminating impact thereof, and an integrated circuit chip. The SET pulse measuring circuit capable of eliminating impact thereof includes four parts: a SET pulse test chain, a latch circuit, a flip-flop test circuit, a latching self-trigger circuit. The integrated circuit chip is provided with a test chain module and two sets of SET pulse measuring circuits capable of eliminating impact thereof, and inputs of the two sets of SET pulse measuring circuits capable of eliminating impact thereof are the same and each are connected to an output terminal of the test chain module.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 31/28 - Testing of electronic circuits, e.g. by signal tracer
G01R 1/22 - Tong testers acting as secondary windings of current transformers
A harmless low-consumption on-orbit continuous launch system includes a satellite platform, a launch apparatus and a plurality of CubeSats. The satellite platform carries the launch apparatus and dozens or hundreds of CubeSats, and is launched from a ground into an orbit for on-orbit operation. The launch apparatus is configured to store the plurality of CubeSats and provide power for on-orbit launching of each of the CubeSats. A solid working medium in the launch apparatus is activated by heating to undergo a phase change, and the activated solid working medium expands instantly and is converted into a high-pressure gaseous working medium. The high-pressure gaseous working medium does work to eject the CubeSats, such that the CubeSats obtain a speed increment. The CubeSats enter a transfer orbit towards different target spacecraft through the speed increment applied by the launch apparatus to perform a plurality of different on-orbit serving missions.
A session-based recommendation method and device according to one or more embodiments of this disclosure are provided, which use a pre-trained recommendation model to perform item recommend. The method includes following contents: a directed session graph is constructed according to a session to be predicted; the directed session graph is then input into a gated graph neural network which outputs the item embedding vector; a user's dynamic preference is determined according to a user's current preference and a first long-term preference, the current preference is an item embedding vector of a last item in the session and the first long-term preference is determined according to the item embedding vector and an importance score of the item; a prediction score of a respective item is determined according to the dynamic preference and the item embedding vector; and a recommended item is output according to the prediction score of the respective item.
A method for updating a stable cuckoo filter used for membership testing of data streams, executed by a processor, is described. The method includes the steps of: performing a first hash on a first element to be inserted into the stable cuckoo filter to determine a first candidate bucket; performing a second hash on a fingerprint of the first element to determine a second candidate bucket; selecting a target candidate bucket from a group consisting of the first candidate bucket and the second candidate bucket; inserting the first element into the target candidate bucket; updating the stable cuckoo filter according to one or more of a random update strategy, an insertion failure update strategy, a scanning strategy, a skip scanning update strategy, a blocked design strategy and a local time-sensitive update strategy; and obtaining an updated stable cuckoo filter.
Disclosed are a network traffic analysis method and a device based on multi-source network traffic data. The method includes: deploying a pre-training classifier pool in a network stream data source; receiving multi-source network stream data at a current moment for each data source, classifying the multi-source network stream data through an online classifier, performing feature processing and transformation on data collected by each network stream data source at each preset time interval, and transmitting processed traffic data features and a feature transformation matrix to a traffic drift detection module. The traffic drift detection module contains historical concept data to detect a concept drift according to the traffic data features, the feature transformation matrix and the historical concept data; if the concept drift is detected, the online classifier deployed by multiple sources is reset. This method is used for continuous real-time and accurate analysis of the multi-source network traffic data.
H04L 43/0811 - Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
A thin-layer low-frequency underwater sound insulation metamaterial, comprising two cover plates (10) and a sound insulation layer (20), wherein the sound insulation layer (20) is composed of sound insulation components periodically arranged in an array; each sound insulation component comprises a sound insulation unit (201) and connection units (202), the sound insulation unit (201) being of a structure of a hollow rectangular column, four connection units (202) being provided at four corners of the corresponding sound insulation unit (201), and two adjacent sound insulation units (201) being connected by means of the connection unit (202); and an included angle between a long side wall of each sound insulation unit (201) and the cover plate (10) is 0° to 90°. The metamaterial can achieve a smaller equivalent acoustic impedance in a direction of acoustic wave propagation, and has greatly improved sound insulation performance as compared with a sound insulation material of a square honeycomb structure with the same thickness. The metamaterial has an average sound insulation amount of more than 20 dB in a frequency range of 200 Hz-2000 Hz and an overall thickness of only 20 mm. Under light-weight and thin-layer constraint conditions, the metamaterial exhibits a good sound insulation effect at low-frequency bands, can be applied to sound insulation and noise reduction of underwater equipment or in other fields, and has good engineering application prospects.
An integrated melting point-free highly efficient optical fiber laser, comprising a plurality of pump sources (5-2-4, 5-3-4), a plurality of pump optical fibers (5-2-3, 5-3-3) and an integrated optical fiber, wherein the integrated optical fiber includes a gain optical fiber region (5-1), a first energy transmission optical fiber region (5-2) and a second energy transmission optical fiber region (5-3). The pump optical fibers (5-2-3, 5-3-3) are respectively connected to a forward pump signal beam combiner (5-2-2) and a backward pump signal beam combiner (5-3-2) by means of side coupling; and the pump sources (5-2-4, 5-3-4) are respectively connected to the forward pump signal beam combiner (5-2-2) and the backward pump signal beam combiner (5-3-2) by means of the pump optical fibers (5-2-3, 5-3-3). The gain optical fiber region (5-1), a high-reflection optical fiber grating (5-2-1) and a low-reflection optical fiber grating (5-3-1) constitute a laser resonant cavity, and a laser generated by the resonant cavity is output by means of the backward pump signal beam combiner (5-3-2), a cladding optical filter (5-3-5) and an optical fiber end cap (5-3-6), which are manufactured on the second energy transmission optical fiber region (5-3).
The present invention provides a manufacturing method and device for a gain and energy transfer integrated optical fiber preform, the device comprising a quartz glass tube, an axial area-limiting gas supply device, a movable connecting gas tube, an area-limiting and driving device connecting part, an axial gas supply synchronous driving device, a flame blowtorch, a flame-blowtorch axial displacement driving device, a gas mixing device, a servo controller, a plurality of electric gas valves, a plurality of gas supply devices, a plurality of gas tubes, a control data line, a waste gas and dust treatment device, and a horizontal lathe. The circular hollow quartz glass tube is mounted on two synchronous rotary chucks of the horizontal lathe. Various gases in the gas supply device enter the axial area-limiting gas supply device. Under the control of the servo controller, the electric gas valves, the axial limited range gas supply device and the flame blowtorch heat a mixed gas confined to a specific area in the quartz glass tube, such that a gas corresponding to a gain and energy transfer optical fiber is deposited in different areas of an inner wall of the quartz glass tube after the gas is subjected to a chemical reaction.
A method, a device and electronic device for clarification question generation are provided in one or more embodiments of this disclosure. The method includes: extracting entity information from a fuzzy context input by a user; inputting the fuzzy context into a template generating module of a pre-built CQG neural network model so as to obtain a clarification question template; inputting the entity information into an entity rendering module of the CQG neural network model so as to obtain at least one entity phrase; and generating a clarification question for a fuzzy question based on the clarification question template and the at least one entity phrase for presenting to the user.
A battery energy storage system (BESS) including: a battery storage configured to store surplus renewable energy; a controller coupled to the battery storage and configured to control charging operations and discharging operations of the battery storage; a generation meter coupled to the controller and configured to measure renewable energy; a renewable energy generator coupled to the generation meter and configured to generate renewable energy; and a standard meter coupled to the controller and configured to measure energy provided by a power grid; wherein the controller is configured to manage energy expenditure of the BESS according to the following steps: initializing a replay buffer configured to store state transition samples; initializing a main net configured to generate a current Q-value; initializing a target net configured to generate a target Q-value; obtaining an environment state of the BESS; and selecting an action based on an ϵ-greedy policy.
A system for streaming data items of a streaming application via a Vertical Cuckoo Filter (VCF), including: one or more computers communicating with a provider via a network; wherein the one or more computers includes: a processor; and a storage device coupled to the processor, wherein the storage device is configured to store the VCF, an insert module, a lookup module, and a delete module, the VCF includes buckets with one or more slots and includes at least two bitmasks, the insert module is configured to perform an insert operation of a first fingerprint of a first item from the provider on the VCF, the lookup module is configured to perform a lookup operation of a second fingerprint of a second item from the provider on the VCF, the delete module is configured to perform a delete operation of a third fingerprint of a third item from the VCF.
A remotely controllable gravitational acceleration physical experiment system. A reset component and a control communication module are introduced into a traditional gravitational acceleration experiment system, such that the system can be remotely controlled, and a user can perform a gravitational acceleration physical experiment operation anywhere by means of a network. The system comprises an experiment body, a control communication module and a remote device, wherein the experiment body comprises a base (1), a support rod (2), an object block (9), a bracket transmission apparatus (3), a measurement component (4) and a reset component; the reset component comprises a sending apparatus (6), a collection apparatus (7) and a reset transmission apparatus, and is used for releasing the object block so that same falls freely, receiving the fallen object block, and restoring the object block to an initial position; and the control communication module is electrically connected to the experiment body, is used for controlling the experiment body to perform an experiment operation and receiving and storing experiment data, and is also used for communicating with the remote device.
G09B 23/08 - Models for scientific, medical, or mathematical purposes, e.g. full-sized device for demonstration purposes for physics for statics or dynamics
62.
Mobile-assisted edge computing framework for emerging IoT applications
A Mobile-Assisted edge computing framework including: one or more requests to be processed; an operator configured to assign the one or more requests to a static edge node; and a cloud configured to cache and pre-fetch services for the one or more requests; wherein the one or more requests include handled requests and unhandled requests, the static edge node is configured to process the handled requests, and one or more mobile edge nodes are configured to process the unhandled requests; and wherein the static edge node is configured to auction the unhandled requests to the one or more mobile edge nodes, the auction including: generating a candidate set of the one or more mobile edge nodes; assigning an unhandled request to a target mobile edge node of the candidate set; and processing the unhandled request via the target mobile edge node.
H04L 67/12 - Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
H04L 67/60 - Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources
63.
Fact validation method and system, computer device and storage medium
A fact validation method including the following steps: a statement to be validated is inputted and a searching is made for the statement to obtain an evidence set of the statement; a hierarchical heterogeneous graph consisting of an entity node, a sentence node and a context node is constructed based on the evidence set; the statement and the evidence set are spliced and a node is initialized to obtain feature representation of the node; the feature representation of the node is updated based on inference according to a propagation direction of a neural network of the node in the hierarchical heterogeneous graph; and an inference path for the updated feature representation of the node is built and a prediction result of the statement is output according to the inference path.
An inductive plasma acceleration apparatus, comprising a pulse laser assembly, a pulsed discharge assembly, an exciting coil assembly, a solid-state working medium, and a control assembly; the exciting coil assembly is electrically connected to the pulsed discharge assembly such that a strong pulse current is produced in the exciting coil assembly during the discharge process of the pulse discharge assembly, and an inductive pulse electromagnetic field is excited around the exciting coil assembly; the solid-state working medium is positioned on the optical path of a pulse laser emitted by the pulse laser assembly such that the solid-state working medium produces a pulse gas under the ablation action of the pulse laser, and the inductive pulse electromagnetic field is positioned on the circulation gas path of the pulse gas such that the pulse gas can enter the inductive pulse electromagnetic field.
An intelligent control gas suction-type electric propulsion system applicable to multi-flow regimes: an ultra-low orbit rare gas is used as a working medium for attitude orbit control and resistance compensation propulsion, the gas is collected and inputted into an intelligent feedback pressurization system by means of a parabolic gas intake duct, intelligent feedback and pressurization are performed on the gas working medium by a molecular pump and a gas pump and the medium is stored in a working fluid storage tank so as to supply a hybrid thruster system that consists of seven sets of electric thrusters to generate thrust, which may achieve multiple thrust modes, and achieve the purpose of attitude orbit control and resistance compensation.
The present disclosure provides an item recommendation method and system based on importance of item in a conversation session and a system thereof. In the present disclosure, an importance extracting module extracts an importance of each item in the conversation session, and then a long-term preference of a user is obtained in combination with the importance and the corresponding item, and then a preference of the user is obtained accurately in combination with a current interest and the long-term preference of the user, and finally item recommendation is performed according to the preference of the user. In this way, the accuracy of the item recommendation is improved.
A high-performance computing-oriented method for automatically deploying an execution environment along with a job, including: presetting isolated execution environments at nodes of a high-performance computing system; logging in an isolated execution environment of a login node; carrying out development and debugging on the job and configuration on a job execution environment at the login node, and issuing a job running request to a job management system; assigning compute nodes from the nodes of the high-performance computing system to the job of the user by the job management system, automatically deploying an file system of the user synchronously to the assigned compute nodes along with the job when the job is loaded, and running the job of the user by the corresponding compute nodes; and feeding results back to the login node of the user after running the job is completed, then clearing file systems.
A hypernetwork model-based combat system architecture modeling method. The modeling method comprises the following steps: decomposing missions of a combat system into a network of tasks that can be executed by an device system; building a system network according to the task network and corresponding relationships between task nodes and system nodes; building a command control network and combining the task network and system network to build a combat system architecture model; building a space exploration problem model of the combat system architecture; and converting decision maker problems in a combat system search problem model into formalized dynamic programming problems. The combat system architecture model built by the present modeling method can help decision makers make optimal choices.
Disclosed is a gear mechanical metamaterial with large-range continuously adjustable elastic parameters, the gear mechanical metamaterial comprising a gear array, a frame and connecting shafts. The gear array is formed by periodically extending a mechanical metamaterial cell in an x direction and a y direction, wherein the cell is composed by arranging a plurality of gears, and adjacent gears mesh with each other. Each gear comprises one central hole and two centrosymmetric special-shaped holes, wherein the thickness of cantilevers between the special-shaped holes and an outer wall of the gear is uniformly increased or decreased. The connecting shafts are arranged in the central holes of the gears; and the gear array is connected to the frame by means of the connecting shafts. Elastic parameters, such as the equivalent Young's modulus, shear modulus, damping and anisotropy, of the mechanical metamaterial provided by the present invention are all closely related to the thickness of the cantilevers at meshing points, and all the gears in the metamaterial can be rotated by rotating any gear in the metamaterial, such that the thickness of the cantilevers at the meshing points is changed, and the smooth and continuous regulation and control of the elastic parameters of the mechanical metamaterial are thus realized.
F16H 1/28 - Toothed gearings for conveying rotary motion with gears having orbital motion
F16H 1/22 - Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shaftsToothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with arrangements for dividing torque between two or more intermediate shafts
The present disclosure provides a visual localization method and apparatus based on a semantic error image. The method includes: performing feature extraction for a target image, and obtaining at least one matching pair by performing feature matching for each extracted feature point and each three-dimensional point of a constructed three-dimensional scene model; obtaining a two-dimensional semantic image of the target image by performing semantic segmentation for the target image; and determining semantic information of each matching pair according to semantic information of each pixel of the two-dimensional semantic image; constructing a hypothesized pose pool including at least one hypothesized pose according to at least one matching pair; for each hypothesized pose, constructing a reprojection error image and a semantic error image; determining a hypothesized pose with a minimum reprojection error and a minimum semantic error as a pose estimation according to the reprojection error image and the semantic error image of each hypothesized pose. Optimal pose screening is performed using the semantic error image constructed based on a semantic error, so as to achieve good localization effect even in a case of significant change of a scene.
G06V 30/262 - Techniques for post-processing, e.g. correcting the recognition result using context analysis, e.g. lexical, syntactic or semantic context
71.
UNMANNED AERIAL VEHICLE PATH PLANNING METHOD BASED ON TWO CHARGING MODES
An unmanned aerial vehicle path planning method based on two charging modes, comprising: constructing an unmanned aerial vehicle path mathematical model (S101); substituting current task data (S102); iteratively solving according to the following steps: generating an initial solution of the unmanned aerial vehicle path planning mathematical model (S104); obtaining an initial value of a pheromone concentration according to the initial solution (S105); constructing a probability selection strategy according to the pheromone concentration (S106); generating, according to the probability selection strategy, a solution indicating that no charging station is provided, and taking the solution indicating that no charging station is provided as an input solution (S107); performing iterative calculation on the input solution by invoking a charging station insertion strategy, so as to obtain the current feasible solution (S108); optimizing the current feasible solution by invoking a local search strategy, so as to obtain an optimal feasible solution for the current task data (S109); and updating the pheromone concentration according to the optimal feasible solution for the current task data (S110).
A flexible variable emissivity electrochromic device and a preparation method thereof are disclosed. The device includes a working electrode, a gel electrolyte layer, and a counter electrode sequentially from top to bottom. The working electrode includes a flexible polymer film and a metal film, the flexible polymer film is a surface-modified film and/or a film with a transition layer plated on a lower side thereof, and the metal film is deposited on the surface-modified film or the transition layer. The electrolyte layer includes a porous membrane and an electrolyte. The electrolyte is infiltrated in the porous membrane. The electrolyte includes an electrochromic material containing metal ions and a solvent, the metal ions enable reversible electrodeposition and dissolution, and metal of the metal ions is different from that used in the metal film. The preparation method includes preparing and assembling a working electrode, a gel electrolyte layer and a counter electrode.
G02F 1/1506 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect based on electrodeposition, e.g. electrolytic deposition of an inorganic material on or close to an electrode
73.
DYNAMIC SPECTRUM SHARING METHOD BASED ON USER ONLINE LEARNING AND LOW-OVERHEAD COOPERATION
The present invention provides a dynamic spectrum sharing method based on user online learning and low-overhead cooperation, and relates to the technical field of electromagnetic spectrums. The method comprises: first, a secondary user obtaining spectrum sharing scene information and requirement parameters; then initializing a state parameter and a spectrum sensing parameter of a channel; then, at the beginning of each time slot, the secondary user determining whether a direct transmission condition is met or not according to the transmission condition of the previous time slot, selecting to directly continue transmission on the channel of the previous time slot or obtain idle channel according to the channel state and spectrum sensing for transmission, and updating the state parameter and spectrum sensing parameter of the channel; and finally, a base station of the secondary user performing conflict coordination according to the channel occupancy condition every a fixed number of time slots. According to the present invention, low-overhead and efficient spectrum sharing is realized by the secondary user learning the channel state and the transmission condition, the spectrum utilization rate in a high user density and dynamic spectrum environment can be effectively improved, and efficient spectrum sharing is realized.
A single laser light source system for a cold atom interferometer, comprising: a reference light path module and an optical frequency shift module. The reference light path module comprises a narrow bandwidth laser and a frequency stabilization module; the optical frequency shift module comprises a first electro-optical modulator and a first narrow bandwidth optical fiber filter; the first electro-optical modulator is connected to the first narrow bandwidth optical fiber filter by means of an optical fiber; the first electro-optical modulator is connected to the laser by means of an optical fiber; the first electro-optical modulator receives initial light of the laser, modulates the initial light by means of a modulation signal of a preset frequency, and generates a sideband of the preset frequency; the first narrow bandwidth optical fiber filter filters an optical signal outputted by the first electro-optical modulator to obtain frequency shift light of a +1-order sideband; and the frequency shift light is used for modulating to obtain measurement and control light of the cold atom interferometer. The laser system is low in costs, low in power consumption, movable, small in size, and capable of eliminating the Raman sideband effect.
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
H01S 3/109 - Frequency multiplication, e.g. harmonic generation
H01S 3/108 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
75.
Micro hemispherical resonator gyroscope, and an assembly method and wafer fixture
A wafer-level assembly method for a micro hemispherical resonator gyroscope includes: after independently manufactured glass substrates are softened and deformed at a high temperature, forming a micro hemispherical resonator on the glass substrate; forming glass substrate alignment holes at both ends of the glass substrate by laser ablation; aligning and fixing a plurality of identical micro hemispherical resonators on a wafer fixture by using the alignment holes as a reference, and then performing operations by using the wafer fixture as a unit to implement subsequent processes that include: releasing the micro hemispherical resonators, metallizing the surface, fixing to the planar electrode substrates, separating the wafer fixture and cleaning to obtain a micro hemispherical resonator gyroscope driven by a bottom planar electrode substrate. The wafer-level assembly method includes: fixedly mounting the plurality of independently manufactured micro hemispherical resonators on the same wafer fixture to implement a wafer-level installation operation.
G01C 19/5691 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode of essentially three-dimensional vibrators, e.g. wine glass-type vibrators
G01C 19/5755 - Structural details or topology the devices having a single sensing mass
G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
76.
COLD ATOM INTERFERENCE PHASE MODULATION TYPE SINGLE-SIDEBAND RAMAN LIGHT GENERATION METHOD AND SYSTEM
A cold atom interference phase modulation type single-sideband Raman light generation method and system. The system comprises a laser, an electro-optic modulator, a local oscillator source, a narrow-bandwidth optical fiber filter, an optical fiber amplifier, and a frequency doubling crystal; the laser generates laser having a frequency of ω, which is used as a laser source and inputted to the electro-optic modulator; the local oscillation source applies a modulation voltage having a frequency of δ to the electro-optic modulator; the electro-optic modulator outputs double-sideband frequency modulation light having a frequency of ω±nδ (n=0, 1, 2...); the double-sideband frequency modulation light is inputted to the narrow-bandwidth optical fiber filter that matches target frequency light; the narrow-bandwidth optical fiber filter outputs target frequency laser; the target frequency laser is sequentially inputted to the optical fiber amplifier and the frequency doubling crystal; and the frequency doubling crystal outputs cold atom interference single-sideband Raman light. The Raman light generation system is simple in device structure, low in cost, high in integration level, easy to implement, high in maturity and good in stability, and has important significance and practical value in engineering implementation of a laser system for high-precision atomic interference measurement.
H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
H01S 3/108 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
H01S 3/109 - Frequency multiplication, e.g. harmonic generation
H01S 3/10 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
77.
Target Task Intention Identifying Method and Device Based on Unit Distribution Thermal Grid
The present application relates to a target task intention identifying method and device based on a unit distribution thermal grid. The method comprises: converting the task space into latitude and longitude grids according to the latitudes and longitudes; according to locations of flying targets and task radiuses, constructing an aerial unit distribution thermal grid in the task space; according to the thermal value of the grid and the associated flying targets, determining a task suspected formation in the task space; judging whether or not each task suspected formation is a target formation according to the principle of time and space consistency; and determining task intention of the target formation according to the platform type of the flying targets in the obtained target formation and the task type of the task target in the task area. The method can be adopted to directly identify the formation of the flying targets, the task area and the task intention according to real-time obtained information such as the platform type of the flying targets, the flying trajectory, the location of the task target, the type of the task target, and the like, so that the problem that a conventional way needs support of prior knowledge and algorithm training is solved.
A method for fusing a knowledge graph based on iterative completion, comprising the following steps: acquiring multiple items of knowledge graph data, and identifying all of the entities in the knowledge graph; acquiring a structural vector and an entity name vector of each entity; calculating the structural similarity and entity name similarity between entities; establishing a mutual attention network based on degree perception, and calculating the entity similarity between entities after fusion; on the basis of the entity similarity, selecting an entity pair with a high degree of confidence, and using iterative training to perform knowledge graph completion to acquire a fused knowledge graph. The method of the present invention proposes a degree-perception mutual attention network to fuse entity name vectors and structural vectors in order to make the alignment effect better, proposes using a spliced power average word vector to characterise entity names, which can capture more information of the entity names, and proposes an iterative training algorithm based on knowledge graph completion to iteratively enhance the entity alignment effect so that long-tail entities are more easily aligned.
The application relates to a virtual grid dictionary based target heading class intention recognition method and a virtual grid dictionary based target heading class intention recognition device. The method includes the steps of: acquiring the longitude and latitude data of a task space, and transforming the task space into a longitude-latitude grid according to the longitude and latitude data; setting up a first virtual grid dictionary corresponding to a task target according to the longitude and latitude of the task target corresponding to a flight target and the longitude-latitude grid; determining whether the flight target is switched to a straight flight mode according to the longitudes and latitudes and current longitudes and latitudes of historical flight paths of the flight target; querying the task target in the flight path of the flight target according to a sensitive area corresponding to the preset task target and the first virtual grid dictionary when the flight target is in the straight flight mode, where the task target is queried according to a situation that whether the flight target is in the range of the sensitive area; and determining the task type of the flight target according to the type of the task target in an expected flight path. The method can improve the efficiency of intention recognition.
G01C 21/20 - Instruments for performing navigational calculations
G06K 9/72 - Methods or arrangements for recognition using electronic means using context analysis based on the provisionally recognised identity of a number of successive patterns, e.g. a word
80.
Online task dispatching and scheduling system and method thereof
The present disclosure relates to an online task dispatching and scheduling system. The system includes an end device; an access point (AP) configured to receive a task from the end device; one or more edge servers configured to receive the task from the AP, the one or more edge servers including a task waiting queue, a processing pool, a task completion queue, and a scheduler, wherein the AP further includes a dispatcher utilizing Online Learning (OL) for determining a real-time state of network conditions and server loads; and the AP selects a target edge server from the one or more edge servers to which the task is to be dispatched; and wherein the scheduler utilizes Deep Reinforcement Learning (DRL) in generating a task scheduling policy for the one or more edge servers.
The present disclosure relates to an edge federation system, wherein the edge federation system includes: an end device; an edge service provider (ESP) configured to contract services from the end device; an edge infrastructure provider (EIP) configured to provide edge computing resources to the contracted services from the ESP; a cloud server configured to provide service to the end device; and a consortium for managing resources between the EIP and the cloud server, wherein the consortium is further configured to calculate available resources of the EIP, calculate available resources of the cloud server, and optimize the distribution of services from the EIP and the cloud server to the end device.
The invention provides a converged network interface card, a message coding method and a message transmission method thereof. The converged network interface card comprises a PCIE host interface processing module, a high speed network card core logic, a crossbar switch XBAR, an Ethernet network card core logic, an Ethernet message dicing/slicing module, a physical layer, a high speed network/Ethernet message conversion module EoH, and a high speed network/Ethernet configurable network port. The invention supports customized high speed interconnection interface and a standard Ethernet interface on a set of network hardware, and supports three working modes on a set of physical hardware (high speed network mode, Ethernet mode and EoH mode transmitting Ethernet messages over the high speed network), implements seamless compatibility between the high speed network/Ethernet, and flexibly supports multimode applications such as scientific computing and cloud computing.
The present disclosure provides an item recommendation method and system based on a user intention in a conversation session. In this method, a current conversation session is encoded by use of items of prior time sequence and the last item so as to generate an accurate conversation session representation which is then used to perform initial item prediction as a user intention. Afterwards, an intention-guided neighbor detector is used to locate an accurate neighbor conversation session. Finally, the current conversation session and the neighbor conversation session representations are combined adaptively by a gated mixed layer to generate the final item recommendation, so as to effectively improve the accuracy of item recommendation.
This invention discloses a multimode interconnection interface controller for a converged network, which comprises a SERDES element responsible for serial/parallel conversion, a LANE_TXCLK element responsible for generating a transmit clock, a SERDES initialization element responsible for link training and rate negotiation, and a PCS_EB coding element and an PCS_AF coding element responsible for physical layer coding of messages. The link training and rate negotiation are completed automatically via the shared SERDES initialization element. More universality and flexibility are provided for interconnection chip design by the PCS_EB coding element. The PCS_AF coding element is provided to reduce message penetration delay. The multimode interconnection interface controller is integrated in a single chip. Through flexible configuration, the single chip can meet transmission requirements of dedicated high speed networks and Ethernet networks. The multimode interconnection interface controller also supports interconnection of data center Ethernet and high performance computing high speed network.
This invention discloses a hierarchical switching fabric and deadlock avoidance method for ultra high radix network routers. The hierarchical switching fabric comprises a network-on-chip and K multi-port components. The multi-port component comprises a port module configured to receive packets by a high speed serializer/deserializer, code and format the packets, send the packets to a corresponding hyper packet module after coding and format conversion, and send the packets sent by the hyper packet module to the network; and the hyper packet module configured to perform protocol processing for the received data link level packets, discard illegal packets, forward legitimate packets to the network-on-chip, perform data error correcting, format conversion and channel mapping for the packets received from the network-on-chip, and send the packets to the corresponding port module.
H04L 49/109 - Integrated on microchip, e.g. switch-on-chip
H04L 49/25 - Routing or path finding in a switch fabric
H04L 69/08 - Protocols for interworkingProtocol conversion
H04L 69/324 - Intralayer communication protocols among peer entities or protocol data unit [PDU] definitions in the data link layer [OSI layer 2], e.g. HDLC
86.
Integrated photonic chip structure for universal quantum walk simulation
The present invention discloses an integrated photonic chip structure for universal quantum walk simulation which combines the multiphoton source that can generate the spatially entangled multi-photon state and the linear optical network that can implement the unitary transformation, and establishes mapping between on-chip spatial-entangled multi-photon state and quantum walk state and mapping between on-chip linear optical unitary transformation and the evolution process of multi-particle quantum walk. By manipulating the spatially entangled multi-photon state generated via the multi-photon sources and the optical unitary transformation implemented via the universal linear optical networks, the chip structure can implement universal quantum walk simulation with the control over all parameters of multiple-particle quantum walks including such as evolution Hamiltonian, evolution time, initial evolution state and particle properties (i.e., particle indistinguishability and particle exchange symmetry).
G02F 1/21 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour by interference
G06N 10/00 - Quantum computing, i.e. information processing based on quantum-mechanical phenomena
87.
METHOD FOR USING MULTIPLE FEATURE VALUES OF HIGH-FREQUENCY SATELLITE-GROUND LINK TO DETERMINE WHETHER IT IS SUNNY OR RAINY AT A GIVEN TIME
A method for using multiple feature values of a high-frequency satellite-ground link to determine whether it is sunny or rainy at a given time, comprising: removing, by filtering, a rapid signal change caused by noise of a satellite-ground link and scintillation, then extracting multiple feature values including a standard deviation, a trend, a maximum value, a minimum value, an average value, a skewness, a kurtosis, and information entropy, and selecting the optimal time window by means of adjustment, and finally using a classification algorithm to determine whether it is sunny or rainy at a given time. The present invention can accurately distinguish a sunny period from a rainy period by using a high-frequency satellite-ground link signal, and can monitor the large-range distribution of sunny days and rainy days in real time, having a great significance in terms of further improving the rain detection accuracy of a satellite-ground link, and improving the levels of monitoring of urban water logging and flood prevention and early warning.
Disclosed is a ranging and positioning method applicable to a WSN having sparse anchor nodes. The ranging and positioning method applicable to a WSN having sparse anchor nodes comprises: a positioning center acquiring coordinate parameters of anchor nodes and information of ranging between all sensing nodes in a network, constructing a positioning model, and generating a blind node positioning matrix; generating a fitness function according to the positioning model, and constructing an adaptive operator; and running an adaptive fireworks algorithm to perform iterative optimization, outputting optimal elite individuals, and parsing same into coordinates of all blind nodes. By utilizing information of ranging between all sensing nodes, in particular by incorporating information of ranging between blind nodes, the positioning model of the present invention significantly improves the positioning precision of sensing nodes, reduces the dependence on the density of anchor nodes, and can support positioning of both a two-dimensional plane and a three-dimensional space, so that the present positioning method can be well applied to a WSN having sparse anchor nodes.
H04W 4/38 - Services specially adapted for particular environments, situations or purposes for collecting sensor information
H04W 64/00 - Locating users or terminals for network management purposes, e.g. mobility management
G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinationsPosition-fixing by co-ordinating two or more distance determinations using radio waves
89.
RAINFALL AND WATER VAPOR COMPREHENSIVE MEASUREMENT DEVICE AND METHOD BASED ON DUAL-FREQUENCY DUAL-POLARIZATION MICROWAVE LINK
A rainfall and water vapor comprehensive measurement device and method based on a dual-frequency dual-polarization microwave link, comprising a dual-frequency transmitter, a dual-frequency receiver, a dual-polarization antenna, a data collector, and a data processing terminal. The dual-frequency transmitter is combined with the dual-polarization antenna to alternately transmit microwave signals, the dual-frequency receiver is combined with the dual-polarization antenna to synchronously receive the microwave signals with corresponding frequencies and polarization modes, and the data collector collects the microwave signals in real time and transmits the microwave signals to the data processing terminal. The method comprises: first distinguishing sunny and rainy periods, performing water vapor information inversion in the sunny period, and performing rainfall information inversion in the rainy period; and calculating attenuation caused by rainfall or attenuation caused by water vapor by utilizing the determined reference level value, and determining rainfall intensity or water vapor density according to a corresponding empirical relationship. On the basis of double-frequency determination of the sunny and rainy days, water vapor density inversion is carried out in sunny days, and rainfall intensity inversion is carried out in rainy days. More importantly, the benefit of obtaining atmospheric information by the microwave link attenuation effect is fully exerted.
Disclosed are a flexible electrochromic-based variable-emissivity device and a preparation method therefor. The flexible electrochromic-based variable emissivity device sequentially comprises a working electrode, a gel electrolyte layer, and a counter electrode from top to bottom, wherein the working electrode comprises a flexible polymer film and a metal film, with the flexible polymer film being a surface-modified film and/or a film of which a lower side is plated with a transition layer, and the metal film being deposited on the surface-modified film or on the transition layer; and the electrolyte layer comprises a porous diaphragm and an electrolyte, with the electrolyte wetting the porous diaphragm. The electrolyte comprises an electrochromic material containing metal ions, and a solvent, wherein the metal ions are metal ions capable of realizing reversible electrodeposition and dissolution, and the metal for the metal ions is different from the metal for the metal film. The preparation method comprises: respectively preparing a working electrode, a gel electrolyte layer and a counter electrode, and performing assembly. The device provided in the present invention is flexible and is uniform in terms of variations. The preparation method provided in the present invention is simple in process and short in preparation period, and can be used for industrial production.
G02F 1/15 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
An optical processing assembly and a Raman fiber laser having a low quantum defect. The optical processing assembly comprises a first reflection structure (3) and a phosphorus-doped fiber (4). An input fiber (41) and an output fiber (42) are respectively provided at two ends of the phosphorus-doped fiber (4); one end of the first reflection structure (3) is provided with an input end so as to be connected to an external light source, and the other end is connected to the input fiber (41) of the phosphorus-doped fiber (4), so that light generated by the external light source enters the input fiber (41) by means of the first reflection structure (3); the first reflection structure (3) is used for reflecting the reflected light source light again to enable the light source light to enter the phosphorus-doped fiber (4) again, and finally first-order Stokes laser is output at the output end of the output fiber (42) of the phosphorus-doped fiber (4). The Raman fiber laser comprises a pumping source (1) and the optical processing assembly. Compared with the prior art, the Raman fiber laser is lower in quantum defect and higher in power conversion efficiency, and can be used for further improving the output power of the fiber laser.
H01S 3/108 - Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
H01S 3/30 - Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
92.
Robust and reliable edge storage method and system for the Internet of Things
Disclosed are a robust and reliable edge storage method for the Internet of Things and a system therefor. A data owner server splits and encrypts raw data into an encrypted data segment, sets a trusted data access control policy and sends it to a third-party proxy server, and sends the encrypted data segment and the trusted data access control policy to a processing server; the processing server stores the encrypted data segment based on a totally local reconstruction code scheme, and forwards the request sent by a data requester server to the third-party proxy server; the third-party proxy server determines whether the data requester server that sends the request is trustable according to the trusted data access control policy, if it is trusted, then sends decrypted information to the data requester server through the processing server; the data requester server decrypts the encrypted data segment according to the decrypted information to obtain the raw data.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
G06F 11/10 - Adding special bits or symbols to the coded information, e.g. parity check, casting out nines or elevens
An anti-interference signal detection and synchronization method for a wireless broadband communication system. The method uses the peak value of a cross-correlation value of a received signal and a local sequence as a basis for determining signal detection and system synchronization. Because the cross-correlation value of the received signal and the local sequence is less affected by a signal-to-noise ratio and interference signals, the method can adapt to signal changes, can effectively alleviate the frame loss problem of a received signal autocorrelation based scheme under a low signal-to-noise ratio and interference condition, and also has good anti-noise and anti-interference capabilities.
A wafer-level assembly method for a micro-hemispherical resonator gyroscope structure, a micro-hemispherical resonator gyroscope structure and a wafer fixture of a micro-hemispherical resonator structure. The wafer-level assembly method for a micro-hemispherical resonator gyroscope structure comprises: performing high-temperature softening deformation on separately manufactured glass sheets (8) and shaping same, forming a micro-hemispherical resonator structure (1) in the middle of each glass sheet (8), cutting two ends of each glass sheet (8) by means of laser cutting to form glass sheet positioning holes (9), and aligning and fixing a plurality of identical micro-hemispherical resonator structures (1) on a wafer fixture (10) by taking the glass sheet positioning holes (9) as reference positions, then performing operation by taking the wafer fixture (10) as a unit, completing subsequent processes of releasing, surface metallization, fixing with planar electrodes (2), separation from the wafer fixture (10) and cleaning of the micro-hemispherical resonator structures (1), so as to obtain micro-hemispherical resonator gyroscope structures driven by the planar electrodes (2) at the bottom. By means of the wafer-level assembly method for a micro-hemispherical resonator gyroscope structure, wafer-level assembly operation can be achieved by fixedly mounting a plurality of separately manufactured micro-hemispherical resonator structures (1) on the same wafer fixture (10), significantly reducing assembly errors of micro-hemispherical resonator gyroscope structures, and improving the stability, consistency and assembly efficiency of the process.
G01C 19/5691 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using the phase shift of a vibration node or antinode of essentially three-dimensional vibrators, e.g. wine glass-type vibrators
G01C 19/5783 - Mountings or housings not specific to any of the devices covered by groups
G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
95.
INTELLIGENT CONTROL GAS SUCTION-TYPE ELECTRIC PROPULSION SYSTEM APPLICABLE TO MULTI-FLOW REGIMES
An intelligent control gas suction-type electric propulsion system applicable to multi-flow regimes: an ultra-low orbit rare gas is used as a working medium for attitude orbit control and resistance compensation propulsion, the gas is collected and inputted into an intelligent feedback pressurization system (2) by means of a parabolic gas intake duct (1), intelligent feedback and pressurization are performed on the gas working medium by a molecular pump (21) and a gas pump (23) and the medium is stored in a working fluid storage tank (25) so as to supply a hybrid thruster system (4) that consists of seven sets of electric thrusters to generate thrust, which may achieve multiple thrust modes, and achieve the purpose of attitude orbit control and resistance compensation. The propulsion system has the advantage of being applicable to working environments that has multi-flow regimes such as 50 km-250 km ultra-low orbit continuous flow and free molecular flow, so that a satellite can work stably in ultra-low orbits for a long time, and the efficiency of onboard equipment on the orbits will be greatly improved.
An inductive plasma acceleration apparatus and method, comprising a pulse laser assembly (1), a pulse discharge assembly, an excitation coil assembly (3), a solid state working medium (4), and a control assembly (5); the excitation coil assembly (3) is electrically connected to the pulse discharge assembly such that a strong pulse current is produced in the excitation coil assembly (3) during the discharge process of the pulse discharge assembly, and an inductive pulse electromagnetic field is excited around the excitation coil assembly (3); the solid state working medium (4) is positioned on the optical path of a pulse laser (11) emitted by the pulse laser assembly (1) such that the solid state working medium (4) produces a pulse gas under the ablation action of the pulse laser (11), and the inductive pulse electromagnetic field is positioned on the circulation gas path of the pulse gas such that the pulse gas can enter the inductive pulse electromagnetic field; and the pulse laser assembly (1) and the pulse discharge assembly are both electrically connected to the control assembly (5). By means of the innovation of the supply method of the working medium, the service life bottleneck thereof is solved, achieving the objectives of efficiently using the working medium, making full use of the advantages of the present type of propulsion apparatus, and promoting the practical application of various kinds of apparatus.
The present invention discloses a method for calibrating controllable phase shifters in a multi-stage staggered Mach-Zehnder interferometer structure on an optical chip, aiming to solve the problem of calibrating the controllable phase shifters in a configurable optical network of the multi-stage staggered Mach-Zehnder interferometers. The technical solution is to calibrate the controllable phase shifters that can be calibrated in the optical network; and then to constitute calibration conditions for and calibrate inner phase shifters that has not been; and finally to constitute calibration conditions for and calibrate outer phase shifters that is not calibrated.
G02F 1/225 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure
G02F 1/21 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour by interference
98.
Method and device of trajectory outlier detection, and storage medium thereof
Disclosed is a method and a device of trajectory outlier detection. The method may include: points on a trajectory to be detected are obtained by sampling the trajectory; characteristic points are extracted from the points according to spatial state and temporal state of each of the points; trajectory segments are obtained by segmenting the trajectory according to the characteristic points; each of the trajectory segments is compared to normal trajectory segments and abnormal trajectory segments; and one or more trajectory outliers are identified from the trajectory segments based on comparison results. Wherein, the normal trajectory segments and the abnormal trajectory segments are obtained by clustering trajectory segments in a training set; and the trajectory segments in the training set are obtained by segmenting historical trajectories based on characteristic points extracted from points on the historical trajectories according to spatial state and temporal state of the points.
There are provided a signal-to-noise ratio determining method and device for a receiving end of an information transmission system, and a channel equalization method and device based on a minimum mean square error (MMSE) equalizer. The signal-to-noise ratio determining method and device are based on an information transmission system in which timing synchronization is achieved by using a structure of a repetitive training sequence. The signal-to-noise ratio determining method includes: acquiring a peak and a valley of an autocorrelation function, where the peak represents a sum of a signal average power and a noise average power, and the valley represents the noise average power; and determining a signal-to-noise ratio based on the peak and the valley.
A device for isolating vibrations includes an ion trap, a cryocooler, a primary chamber, a secondary chamber, a vacuum ion pump, a heat exchanger, a sample chamber, a support part, a connector, a heat conduction part, a first platform, a second platform, and a flexible connecting part. The primary chamber, the secondary chamber, and the vacuum ion pump are fixedly disposed on the first platform. The connector is a hollow structure disposed between the primary chamber and the secondary chamber. The primary chamber communicates with the secondary chamber via the hollow structure thereby forming an airtight chamber. The vacuum ion pump is connected to the primary chamber via a five-way flange. The support part is fixed on the second platform. The cryocooler is fixed on the support part. The cryocooler includes a cold head and a machine head. The cold head is suspended in the primary chamber.
F25B 9/10 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
F25D 19/00 - Arrangement or mounting of refrigeration units with respect to devices
F25B 9/14 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
patents
