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555 results about "Mapping algorithm" patented technology

Multi-modal diagnosis and treatment data analysis and auxiliary diagnosis method for Internet medical treatment

The invention discloses a multi-modal diagnosis and treatment data analysis and auxiliary diagnosis method for internet medical treatment, which comprises the following steps: S1, performing feature extraction and fusion on multi-modal diagnosis and treatment data through a nonlinear mapping algorithm based on quantum state optimization; s2, constructing a self-adaptive dynamic relation network, and capturing a complex interaction relation between cross-domain features in the diagnosis and treatment data; s3, fusing implicit features in the sparse medical data with semantic association; s4, optimizing the diagnosis and treatment decision process by applying a causal inference technology; s5, processing anomalies in the diagnosis and treatment data by using a fusion generative adversarial network and sparse tensor decomposition technology; s6, constructing a decentralized encrypted federated learning network to protect the privacy of the patient; s7, predicting a disease evolution path in real time to form dynamic decision support; and S8, performing accelerated analysis on the high-dimensional feature mode in the diagnosis and treatment data in combination with quantum calculation. The method has the advantages of high data fusion capability, high diagnosis precision and high real-time decision support capability.
Owner:BEIJING KOALA HOSPITAL MANAGEMENT SERVICE CO LTD

Sensor data fused automobile fault detection method and system

The invention relates to the technical field of fault detection control, and discloses an automobile fault detection method and system fusing sensor data. The method comprises the following steps: modeling a multi-system sensor network through an automobile system topology mapping algorithm to obtain a sensor topology incidence matrix; performing synchronous processing on the sensor topological incidence matrix according to a vehicle dynamics constraint equation to obtain a synchronous multi-sensor data set; inputting the synchronous multi-sensor data set into a fault propagation path sensing network for fusion to obtain a vehicle system fault feature vector; detecting the fault feature vector based on an automobile physical model constraint optimizer to obtain a fault state recognition result; and tracing and controlling a fault state identification result according to the fault propagation atlas model to obtain a system adjustment control signal. According to the invention, the source identification accuracy of the complex coupling fault and the pertinence of control and adjustment are improved.
Owner:LUOYANG VOCATIONAL&TECHNICAL COLLEGE

Layout optimization method of water quality monitoring points based on rf-c-som clustering algorithm

A layout optimization method of water quality monitoring points based on a RF-C-SOM clustering algorithm includes: preprocessing collected water quality data to obtain preprocessed water quality data that are used as data, and using water quality categories as labels to train a random forest model to determine feature importance of water quality indicators; selecting important features based on the feature importance and model training accuracy, performing dimensionality reduction on the preprocessed water quality data to obtain dimension-reduced data; performing a fuzzy clustering on the dimension-reduced data to obtain a water quality section classification result, and based on it, determining initial weight values of a self-organizing mapping algorithm; initializing neurons and training a self-organizing mapping network model with the initial weight values; obtaining a point clustering result through the self-organizing mapping network model; and conducting a water quality index evaluation for the point clustering result before and after screening.
Owner:HUNAN UNIV OF TECH & BUSINESS

Distributed intelligent authentication method based on dynamic multi-modal fusion

A distributed intelligent authentication method based on dynamic multi-modal fusion relates to the field of network security, and adopts an alliance chain + DAG hybrid block chain architecture, combines a threshold signature to realize secret key fragment management, and switches among PBFT, Raft and probabilistic algorithms through a dynamic consensus mechanism to improve authentication efficiency. The multi-mode authentication module is based on a dynamic weight distribution algorithm, integrates biological characteristics, behavior analysis, equipment fingerprints and environmental factors, and combines an LSTM-GAN model and a quantum random number driven challenge-response mechanism to realize zero-trust verification under environmental perception. The session management module generates a session key by using a chaotic mapping algorithm. In the aspect of privacy protection, CKKS homomorphic encryption, zero-knowledge proof and attribute-based encryption are fused. According to the method, the block chain technology, the secure multi-party computing technology, the machine learning technology and the quantum cryptography technology are fused, and a high-performance, high-security and strong-privacy-protection distributed authentication solution is provided.
Owner:JINLING INST OF TECH

Defect repairing method based on digital twinning and friction stir welding technology

The invention discloses a defect repair method based on digital twinning and friction stir welding technologies, and relates to the technical field of intelligent manufacturing and digital twinning, and the defect repair method comprises the following steps: synchronously capturing full-dimensional data of a welding area through a multi-mode sensor array integrated by an actuator; secondly, segmenting defect boundaries by adopting a deep learning algorithm, constructing a dynamic twin model in combination with thermal-force field coupling simulation, and accurately mapping defect three-dimensional features; generating a repair track according to the twinborn model, converting the repair track into a robot joint instruction through a curved surface parameterization mapping algorithm, and implanting real-time anti-collision constraint; in the repairing process, based on reinforcement learning control of the material rheological resistance and the temperature gradient, the rotating speed, the advancing speed and the down force of the tool are dynamically adjusted; and after repairing, micro-focus CT scanning is started immediately, actually measured data is compared with twinborn prediction, and when the deviation exceeds a threshold value, a re-repairing process is triggered automatically. The method solves the problems that a traditional method depends on manual intervention and the precision of a sensor is easily interfered by the environment.
Owner:SOUTHWEST TECHNICAL ENGINEERING RESEARCH INSTITUTE OF CHINA SOUTH IND GROUP

Battery cluster level fire-fighting linkage control method and system based on BMS

The invention discloses a battery cluster level fire-fighting linkage control method and system based on a BMS, and the method comprises the steps: carrying out the thermal runaway prediction through a multi-source feature fusion network according to the real-time voltage, temperature and gas concentration data of a battery cluster, and outputting a thermal runaway prediction level; on the basis of the thermal runaway prediction level, a dynamic priority mapping algorithm is utilized, and a control instruction set containing execution priority and spatial positioning is output according to the battery cluster topological structure; according to the control instruction set, a dual-channel redundant signal verification mechanism is adopted to execute a fire-fighting action, and a real-time action feedback signal is output; and on the basis of the real-time action feedback signal and the residual state data of the battery cluster, updating the parameter weight of the multi-source feature fusion network through a reinforcement learning model so as to be used for fire-fighting linkage control in the next period, and forming a closed-loop control link. According to the embodiment of the invention, battery cluster-level fire-fighting linkage control can be realized, so that the safety protection capability of a battery system is improved.
Owner:HANGZHOU KGOOER ELECTRONIC TECH CO LTD

Precise interference avoidance method and device in radio system

The invention discloses a precise interference avoidance method and device in a radio system, and relates to the field of signal processing, and the method comprises the steps: constructing a sensing matrix through sensing node data, and capturing a transient interference signal through aperiodic scanning; performing tensor decomposition on the signal data to extract time domain, frequency domain, space domain and modulation domain features, constructing a dual-mode spectrum analysis model, reconstructing an instantaneous spectrogram by using compressed sensing, and predicting an interference mode through LSTM; after the instantaneous spectrogram and the predicted interference graph are fused, threat assessment is carried out through a multi-stage interference classification model; according to the interference category and the threat level, beam forming is optimized, adaptive null is generated, a power density optimization model is constructed, and the transmitting power is dynamically adjusted; an anti-interference frequency hopping sequence is generated based on a chaotic mapping algorithm, and spectrum camouflage and tracking interference resistance are realized. The method has the advantages that accurate identification and dynamic avoidance of interference are realized through multi-dimensional perception, intelligent prediction and adaptive beam forming, and the interference avoidance capability of a wireless system is improved.
Owner:BEIJING BOHONG KEYUAN INFORMATION TECH CO LTD

Driving style quantitative evaluation method based on multi-modal perception and knowledge graph

The invention discloses a driving style quantitative evaluation method based on multi-modal perception and a knowledge graph, and the method comprises the steps: employing a multi-modal data source, which comprises various sensor data, vehicle motion data, and physiological reaction and behavior data (such as heart rate change and operation intervention frequency during emergency braking) of a driver and a passenger in a real scene; a user emotion mapping algorithm is constructed by the model, subjective experience is converted into quantifiable numerical indexes (such as a trust index and a comfort score), a driving style deviation index (SDI) is calculated by using an algorithm in combination with a constructed driving behavior knowledge graph, quantitative evaluation of brand driving genes is realized, and a data driving basis is provided for function and algorithm optimization. And a personalized intelligent driving mode is realized. Therefore, the driving style quantitative evaluation method based on the multi-modal perception and the knowledge graph has the advantages of being high in intelligent degree and high in individuation degree.
Owner:AVL LIST TECHN CENT SHANGHAI

Hybrid parallel and dynamic scheduling method of hybrid expert model based on 3D near-memory processing

The invention provides a hybrid parallel and dynamic scheduling method of a hybrid expert model based on 3D near-memory processing. The method comprises the following steps: establishing a joint performance analysis model; performing off-line linear programming optimization expert distribution; performing Bayesian optimization on physical node mapping; performing online reasoning; carrying out online dynamic priority detection; and an expert pre-broadcast and communication-friendly lexical element distribution strategy with optimal efficiency is provided. According to the method, node balancing optimization is realized through offline linear programming, and the problem of load imbalance of 3D NMP calculation is remarkably improved; in combination with a Bayesian optimization mapping strategy of link balance, the communication speed-up ratio is increased, and NoC link congestion is reduced; a dynamic scheduling strategy adapts to dynamic changes of expert activation in real-time reasoning through calculation load prediction and a pre-broadcast mechanism. Through cooperation of the offline automatic hybrid parallel mapping algorithm and the online dynamic scheduling strategy, the calculation load and the communication overhead are effectively balanced, and the reasoning efficiency of the hybrid expert model MoE on the 3D near-memory processing architecture is remarkably improved.
Owner:PEKING UNIV

Subway tunnel secondary lining section limit measuring method based on SLAM mobile scanning

The invention relates to the field of measurement, in particular to a subway tunnel secondary lining section limit measurement method based on SLAM mobile scanning, which comprises the following steps: step 1, tunnel point cloud acquisition and target clustering point cloud acquisition; step 2, CPIII control point coordinate extraction; step 3, point cloud coordinate conversion; 4, performing point cloud processing, and removing noisy points and non-secondary-lining target point cloud data in the tunnel secondary-lining point cloud; and step 5, performing three-dimensional limit deviation analysis, performing spatial comparative analysis on the point cloud under the construction coordinate system and the subway secondary lining tunnel design three-dimensional model by adopting a voxelization deviation mapping algorithm, extracting a continuous deviation region through voxel clustering, and generating a three-dimensional deviation thermodynamic diagram. According to the method, the two-lining tunnel point cloud obtained by SLAM mobile scanning is accurately converted into a construction coordinate system by combining CPIII high-precision control points in the tunnel, rapid, visual and three-dimensional contrastive analysis with design of a three-dimensional model can be achieved, and visual and reliable data support is provided for line and slope adjustment, track laying and defect improvement.
Owner:QINGDAO INST OF SURVEYING & MAPPING SURVEY

Dynamic path planning method and system for inspection robot

The invention belongs to the technical field of data processing, and particularly discloses a dynamic path planning method and system for an inspection robot, and the method comprises the steps: collecting field data through a sensor, processing a laser scanning point cloud and a camera image through a positioning mapping algorithm, and fusing multi-source information to generate a real-time map. Obtaining a three-dimensional environment model containing a dynamic obstacle position; according to the three-dimensional environment model, obstacle features are extracted, a deep learning model is adopted to identify moving personnel and randomly placed goods, obstacle types and movement tracks are judged, and a classified obstacle data set is obtained; through the classified obstacle data set, the distance and the relative speed between the obstacle and the current position of the robot are calculated, and if the distance is smaller than a preset threshold value and the speed is larger than zero, high-priority interference is marked; according to the invention, the problem of inaccurate dynamic obstacle identification and obstacle avoidance in a complex scene in the prior art is solved.
Owner:SICHUAN HANYU MORNINGSTAR BIG DATA TECHNOLOGY CO LTD

Intelligent fire and wind prevention linkage method and system based on port quay crane meteorological perception

The present application relates to the field of data processing technology, and discloses an intelligent fire and wind prevention linkage method and system based on meteorological perception of port quay cranes. The method includes: collecting equipment operation data through a multi-dimensional sensing unit, constructing a perception feature vector and calculating the working condition load index; according to the feature vector and the load index, the protection margin coefficient is calculated through a boundary mapping algorithm to generate an operation toughness value; based on the toughness value, a correlation analysis is performed to obtain the wind-fire coupling risk index and the disaster cascade impact; the prediction value is calculated according to the risk index and the impact, and the response matching degree is output; the strategy coefficient is adjusted according to the matching degree and fed back to the feature vector. The present application establishes a dynamic protection mechanism based on the actual bearing capacity of the equipment, so that it can maximize the operating time of the equipment while ensuring safety, while improving the system's ability to cope with complex disasters.
Owner:TIANJIN PORT SECOND CONTAINER TERMINAL CO LTD +1

Building decoration curtain wall construction progress intelligent monitoring method and system

The invention discloses an intelligent monitoring method and system for the construction progress of a building decoration curtain wall. The method comprises the steps that multi-source construction data of a construction site are collected through Internet of Things equipment and a high-definition camera; constructing a multi-dimensional tensor model and extracting data association features by applying a local reversible mapping algorithm to generate a standardized feature data set; performing parallel computing through shared memory hierarchical process mapping by utilizing the standardized feature data set, and outputting a project progress state evaluation result; constructing a decision diagram based on the project progress state evaluation result, and generating a construction progress deviation report; predicting a construction progress trend by adopting a sample optimal private regression algorithm and generating an optimization scheme; and visually displaying the construction progress prediction report and carrying out early warning. According to the invention, the problems of low data integration efficiency, delayed decision response and weak multi-dimensional data association analysis capability of traditional curtain wall construction monitoring are solved, and intelligent and efficient monitoring of the construction progress of the building decoration curtain wall is realized.
Owner:CHINA CONSTRUCTION SCIENCE & TECHNOLOGY DEVELOPMENT CO LTD

Multi-person motion capture real-time digital human driving method based on skeleton-muscle interaction model

The invention relates to a multi-person motion capture real-time digital human driving method based on a skeleton-muscle interaction model, and belongs to the field of artificial intelligence and ubiquitous universe. According to the method, the key points of the human body are detected through YOLO-Pose, the positions of the shielding points are obtained through a double-stage dynamic shielding point compensation method, and the accuracy of the key points is guaranteed. And outputting the three-dimensional coordinates of the key points of the human body by adopting a three-dimensional key point depth extractor based on multi-dimensional exclusive-shared feature reasoning in combination with an MT ransPose model. A real person-skeleton model-digital person real-time mapping method is provided, three-dimensional key points are mapped to a standard human body skeleton model, and a digital person role and the skeleton model are bound through a weight mapping algorithm. Based on a skeleton-muscle interaction model, the digital person accurately reflects a real motion posture by introducing the mechanical action of a skeleton rigid body dynamic model and a muscle force line model, and the process of driving the digital person in real time through multi-person motion capture is achieved.
Owner:CHONGQING UNIV OF POSTS & TELECOMM

Network traffic anomaly detection system based on artificial intelligence

The invention discloses a network traffic anomaly detection system based on artificial intelligence, and relates to the technical field of network security, and the system comprises the following components: a plurality of agent modules, a cooperative communication module, a decision fusion module and a model training and updating module. According to the invention, by integrating a plurality of agent modules, the multi-dimensional features of the network traffic can be comprehensively and deeply analyzed, and each agent module adopts advanced algorithms and technologies, such as a multi-dimensional feature mapping algorithm, a behavior pattern mining algorithm, a protocol semantic parsing algorithm and a periodic fluctuation decomposition algorithm. The algorithms can accurately capture the abnormal behavior of the network flow, and meanwhile, the decision fusion module adopts an adaptive dynamic weight fusion algorithm, comprehensively considers the detection result of each agent, obtains a final abnormal detection conclusion, and further improves the detection accuracy.
Owner:上海思来氏信息咨询有限公司

Distributed heuristic unmanned cluster brain-like swarm intelligence fusion search and capture method

The present invention discloses a distributed heuristic unmanned cluster brain-like swarm intelligence fusion search and capture method, comprising: step 1: completing single target detection on the basis of a Yolov5 network, and predicting the position of a next frame of target on the basis of a DeepSort algorithm; step 2, on the basis of the distance difference and the area difference, determining, by mapping, navigation end point coordinates formula (1) of an intelligent agent in a physical space; step 3, constructing a diffusion-contraction coordinated chaotic mapping algorithm, and mapping the update of the navigation end point coordinates into a uniformly distributed chaotic space; step 4: on the basis of target detection confidence decision information and regional position information of all intelligent agents, fusing and generating global search information formula (3) of a search space formula (2); step 5: on the basis of the intelligent agent global search information, fusing various sensing data in a multi-agent system, so as to estimate target position information; and step 6: performing measurement on the basis of a real-time position of the intelligent agent and an obstacle position. The present invention has high capture efficiency and can accurately update a capture end point of the intelligent agent to complete a task of encircling a moving target.
Owner:NANJING UNIV OF POSTS & TELECOMM

Linear dimension measuring method and device for total length of road guardrail stand column

The invention provides a linear dimension measurement method and device for the total length of a road guardrail stand column, and relates to the field of linear dimension measurement, the device is deployed on a detection vehicle, and comprises a control module, a ground penetrating radar measurement module, a 3D camera measurement module, a sensor module, a lower computer and an upper computer; according to the invention, accurate data acquisition is realized through multi-module cooperative control, and the lower computer is combined with the AI image recognition technology to realize accurate acquisition of contour data; the lower computer transmits radar original data (reflected waves and diffracted waves) and 3D contour data (column cap space coordinates) to the upper computer, the upper computer achieves data fusion through a hierarchical velocity model (time-depth conversion) and a coordinate system mapping algorithm (3D-road coordinate system), and the accuracy of the total length measurement error is greatly improved compared with that of single module detection. The method solves the problems of low efficiency, large destructiveness and poor accuracy of traditional manual detection, and has the advantages of method innovation and engineering landing.
Owner:SICHUAN JINGWEI TRAFFIC ENG TECH CO LTD

Rule engine configuration method and device based on machine learning, equipment and storage medium

The invention belongs to the technical field of artificial intelligence, is applied to the field of financial science and technology and the field of medical health, and discloses a rule engine configuration method, device and equipment based on machine learning and a storage medium. The method comprises the steps that historical calculation data and performance indexes in historical calculation tasks are collected, and a training data set is constructed; a machine learning model is trained, and algorithm parameters of the rule engine are dynamically optimized through the training data set; configuring an expression and a user-defined function of a rule engine, and realizing analysis and execution of scripts through JEXL (JavaScript Exchange Library); establishing a dynamic mapping relationship between the algorithm configuration library and the business variables, mapping algorithm variable names and business variable names, and generating configurable algorithm rules; and analyzing task load and resource requirements based on a pre-trained machine learning model, distributing system resources, and repairing abnormal behaviors in a calculation process. According to the invention, the problems of low processing efficiency, high maintenance cost, unreasonable resource allocation and poor expandability in the prior art are solved.
Owner:CHINA PING AN LIFE INSURANCE CO LTD

Defogging embedded system and method for intelligent driving vehicle-mounted camera

The invention relates to the technical field of intelligent driving, and discloses a defogging embedded system and method for an intelligent driving vehicle-mounted camera, and the method comprises the steps: obtaining original image data collected by the vehicle-mounted camera, and analyzing the brightness distribution, color shift and texture features in an image; based on the image degradation feature information, performing preliminary enhancement processing on the image by adopting an edge guided filtering and brightness adaptive mapping algorithm to generate an initial enhanced image; carrying out fog distribution estimation on the initial enhanced image, carrying out detail restoration and color compensation in combination with a lightweight image reconstruction strategy, and dynamically improving the image quality through an iterative optimization mode; performing definition evaluation on the optimized image, and measuring the fuzzy degree change trend and the structural similarity; and in combination with the finally output clear image, performing target identification and feature extraction operation, and performing accuracy evaluation on an identification result. The method has the advantage of improving the definition of the intelligent driving image.
Owner:SHENZHEN JUEMING ARTIFICIAL INTELLIGENCE CO LTD

Localization of a surveying instrument

A method for surveying an environment by a movable surveying instrument with a progressional capturing of 2D-images by at least one camera and applying a visual simultaneous location and mapping algorithm (VSLAM) or a visual inertial simultaneous location and mapping algorithm (VISLAM) with a progressional deriving of a sparse evolving point cloud of at least part of the environment, and a progressional deriving of a trajectory of movement. The method comprises a progressional matching of the sparse evolving point cloud with a previously derived 3D-geometry, with a minimizing of a function configured to model a distance between the sparse point cloud and the previously derived 3D-geometry and deriving a spatial localization and orientation of the surveying instrument. At least one surveying measurement value of the environment by a spatial measurement unit is combined with the sparse point cloud or the previously derived 3D-geometry.
Owner:LEICA GEOSYSTEMS AG

Service life prediction method and system for bridge connection part

The invention relates to the technical field of bridge engineering structure health monitoring, in particular to a service life prediction method and system for a bridge connection part, and the method comprises the steps: collecting the strain of a grouting sleeve, a reinforcement-grouting interface ultrasonic reflection signal and environment temperature and humidity data through a distributed sensor array; a three-dimensional dynamic void rate model is generated through fusion of a spatial topological mapping algorithm, a correlation function of load circulation and void expansion is established, the dynamic void rate is input into a bond strength coupling degradation model, after strength attenuation is quantized in combination with steel bar corrosion data and bond failure early warning is triggered, stress redistribution is calculated through multi-physics coupling simulation, and the dynamic void rate is obtained. Early warning is taken as a starting node, the actual load spectrum and temperature and humidity data are combined, Monte Carlo sampling is adopted to simulate rigidity degradation and output the residual life probability, the system comprises a multi-source collaborative sensing unit, a micro-void evolution analysis unit and a life prediction decision unit, and the safety control precision of bridge connection parts is improved.
Owner:平原县农村公路发展中心

Automobile seat massage adjusting method and adjusting system

The invention provides an automobile seat massage adjusting method and adjusting system, and belongs to the technical field of automobile seat intelligent massage control. The method comprises the steps that seat multi-area pressure sensing data are collected, and a pressure feature matrix and a massage mode classification model set are constructed; setting a user body type parameter adjustment category set, and establishing a parameter fusion association model based on historical use data; current pressure and vibration characteristic parameters are extracted, and an optimized parameter set is generated through characteristic optimization; and updating massage control logic and calibrating a parameter matching position. The system comprises a data acquisition module, a model construction module, a feature optimization module and a calibration module. By dynamically fusing real-time data and historical parameters, self-adaptive adjustment of massage intensity is achieved, the problem that a traditional fixed mode cannot be matched with personalized requirements is solved, meanwhile, the parameter calibration precision is improved through a coordinate mapping algorithm, and user experience is improved.
Owner:HOMPOR TSINGXIAN INC

Wireless signal interference detection method based on generative adversarial network

The invention discloses a wireless signal interference detection method based on a generative adversarial network. The method comprises the following steps: S1, constructing a generative adversarial network model for wireless signal interference detection; s2, designing a dynamic network optimization mechanism based on the disturbance characteristics of the wireless signal data; s3, mapping interference characteristics of different domains to a unified characteristic space by adopting a cross-domain interference mode migration technology; s4, sparse features of the interference signals are extracted through the compressed sensing technology, and time domain and frequency domain distribution of the interference mode is restored through a reverse mapping algorithm; s5, on the basis of a collaborative optimization mechanism of generation and discrimination bidirectional feedback, discriminator feedback information is introduced into the generator to optimize the generated sample; and S6, adopting an adaptive data enhancement technology based on dynamic adversarial sample generation, expanding the training data set through a random disturbance interpolation and feature mixing strategy, and outputting an interference detection result. The method has the advantages of high adaptability, high detection precision and excellent generalization ability.
Owner:XIJING UNIV

Brightness adjustment control method and brightness adjustment device

The invention discloses a brightness adjustment control method and a brightness adjustment device, and relates to the technical field of vehicle-mounted systems. The brightness adjustment control method comprises the following steps: acquiring light parameters, position data and time information; determining a current scene of the vehicle; and generating a corresponding control signal to drive the backlight source to work. According to the method, the light parameters, the position data and the time information are fused to realize multi-dimensional environment perception and dynamic scene discrimination, so that the environment state of the vehicle is accurately identified, the scene classification accuracy is improved, and then, the adaptive brightness mapping algorithm based on scene feature matching is utilized to improve the accuracy of scene classification. Smooth and continuous control signals are generated according to human eye perception characteristics to drive a backlight source, and visual fatigue caused by brightness step in a traditional scheme is avoided; meanwhile, instantaneous environment interference is filtered out through position pre-judgment and illumination trend analysis, and the system stability under the complex working condition is enhanced.
Owner:SHENZHEN PLUCKYSTONE TECH CO LTD

Battery health state evaluation-based battery car dynamic charging optimization management system

The invention provides a battery car dynamic charging optimization management system based on battery health state evaluation, and belongs to the technical field of battery car charging management. The system comprises a data acquisition module which is connected with an environment sensing device and a battery management system and acquires environment and battery parameters in real time; the data storage module is used for storing an initial training data set, a charging and discharging data set and a battery aging feature library; the model building module is used for building a battery health state evaluation model through a migration strategy and building a response model through a modeling strategy; the health state evaluation module is used for extracting associated features with a critical damage threshold value as a core through a mapping algorithm based on the battery parameters, the environmental parameters and an aging feature library; and the charging strategy generation module comprises a strategy generation unit, a reference parameter generation unit and a dynamic correction unit. The system effectively improves the adaptability of battery car charging, guarantees the efficient and stable operation of the battery, and remarkably improves the safety and prolongs the service life of the battery.
Owner:HANGZHOU MINGKUN ELECTRIC APPLIANCE CO LTD

Image chaotic encryption method based on magnetic control memristor and electronic equipment

The invention relates to the technical field of image encryption, in particular to an image chaotic encryption method based on a magnetic control memristor and electronic equipment, and the method comprises the steps: obtaining an input image; calculating a hash value or generating a random challenge value according to the input image to determine input excitation; judging whether the magnetic field intensity is in a set legal magnetic field domain; if so, calling a real response path of the magnetic control memristor to generate a real response code stream at least according to the input excitation and the magnetic field intensity; constructing a chaotic parameter and a disturbance source according to the real response code stream, and injecting the chaotic parameter and the disturbance source into the fractional order hyperchaotic system; generating a dynamic key stream through a fractional order hyper-chaotic system according to the chaotic parameters; the dynamic secret key stream is combined with a mapping algorithm to globally scramble pixels of an input image, the dynamic secret key stream and a disturbance source are used to carry out bidirectional diffusion on the scrambled image, and a chaotic encryption image is obtained. According to the invention, the magnetic control memristor PUF and the fractional order hyper-chaotic system are deeply fused, and a hardware and algorithm collaborative image encryption mechanism is realized.
Owner:NANTONG XINGRUIXIN TECHNOLOGY CO LTD

LED spherical screen video image coordinate generation method and system, medium, program product and terminal

The invention provides an LED spherical screen video image coordinate generation method and system, a medium, a program product and a terminal, and the method comprises the steps: obtaining a configuration file of an LED spherical screen, and carrying out the analysis, so as to obtain the spatial geometric parameters of the LED spherical screen; obtaining a to-be-displayed video image of the LED spherical screen, and analyzing and screening the to-be-displayed video image to obtain an effective pixel data set; and calculating latitude and longitude coordinates corresponding to the pixel coordinates of the to-be-displayed video image by adopting a nonlinear mapping method based on the spatial geometric parameters of the LED spherical screen and the effective pixel data set of the to-be-displayed video image. By preloading spatial geometric parameters of a sphere, image pixels are dynamically analyzed, and efficient and accurate conversion from pixel coordinates to latitude and longitude coordinates is realized by adopting a nonlinear mapping algorithm. Meanwhile, the batch writing optimization and dynamic buffer management technology is adopted, the processing speed and the system operation stability are remarkably improved, and the method can be widely applied to the fields of LED spherical screen content manufacturing, display correction and the like.
Owner:SHANGHAI SANSI ELECTRONICS ENG +4

Self-adaptive mouse control method based on inertial measurement unit

The invention discloses a self-adaptive mouse control method and device based on an inertial measurement unit and a computer readable storage medium. The method comprises the steps that basic mouse sensitivity adjusting parameters are calculated according to physical mouse sensitivity setting; obtaining original three-dimensional motion data of the inertial measurement unit to generate a standard motion feature flow; selecting parameters from the standard motion feature flow as basic cursor control input based on current human-computer interaction situation information; using the basic sensitivity parameter as an adjusting parameter, and processing the basic cursor control input by applying a preset mapping algorithm corresponding to the current effective sensitivity mapping mode to generate a mouse cursor moving instruction; and matching the standard motion feature flow with a pre-constructed hierarchical motion primitive library to obtain a mouse key instruction. The method has the advantage that the operation efficiency and the user experience of IMU-based mouse control in multiple scenes are improved.
Owner:SHENZHEN HULE TECHNOLOGY CO LTD

Biaxial coaxiality in-situ detection system and method based on optical dynamic reference coupling

The invention discloses a biaxial coaxiality in-situ detection system and method based on optical dynamic reference coupling, relates to the field of real-time calibration of photoelectric tracking equipment, and solves the technical defects of reference transmission errors and dynamic response delay caused by mechanical stress deformation in traditional contact measurement. The system comprises a pitching assembly, a laser light source, a two-dimensional moving platform, a stable platform, a base, a standard clamping ring, a left shaft, a right shaft and a photosensitive position sensor. A stable platform is arranged on the base, a two-dimensional moving platform is arranged on the stable platform, a laser light source emitted by the laser device penetrates through a standard clamping ring through hole and forms light spots on the photosensitive position sensors, and the two photosensitive position sensors achieve coordinate correlation mapping through a dynamic coordinate system mapping algorithm and obtain two coordinate systems at the same time; the standard clamping rings are symmetrically installed on the end faces of the two sides of the left shaft and the right shaft, and the back photosensitive position sensors are symmetrically arranged in the gap between the left shaft and the right shaft. And data collaborative acquisition is realized through the synchronous controller.
Owner:CHANGCHUN TONGSHI PHOTOELECTRIC TECH CO LTD