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306 results about "Adaptive identification" patented technology

Self-adaptive identification method for nonlinear dynamic parameters of reducer

Provided is a self-adaptive identification method for nonlinear dynamic parameters of a reducer, which belongs to the design field of a reducer. The method includes: modeling a harmonic reducer corresponding to a flexible joint as a concatemer of a rigid reducer and an elastic torsion spring, and carrying out dynamic theoretical modeling and parameter variable independence processing on the concatemer to form a dynamic equation for parameter identification; giving an optimized motion trajectory to each joint of a robot and controlling the robot to act accordingly, acquiring relevant data needed for parameter identification based on a built-in torque sensor and double encoders inside the joint; using an offline identification algorithm to accurately identify a plurality of dynamic parameters of a collaborative robot considering joint flexibility and friction, and obtaining a minimum parameter set.
Owner:ZHEJIANG UNIV

Urban drainage pipe network monitoring data cleaning and intelligent prediction method

The invention provides an urban drainage pipe network monitoring data cleaning and intelligent prediction method, and the method comprises the steps: firstly obtaining pipe network monitoring data, and carrying out the classification tracking and repairing of missing values; adopting a dynamic IQR algorithm based on a sliding window to adaptively identify abnormal candidate points; secondly, introducing a pipe network topological relation, comparing upstream and downstream data change trends, eliminating non-physical anomalies caused by equipment faults, and reserving real hydraulic events; calculating the physical delay time between the nodes by using the cross correlation coefficient; and finally, constructing a random forest model, taking upstream historical data after delay alignment as feature input, and realizing accurate prediction of a future water level and quantification of a feature contribution degree. According to the method, a physical mechanism and machine learning are fused, the problems that data cleaning lacks adaptivity and a deep learning model lacks interpretability are effectively solved, and the accuracy of waterlogging early warning is improved.
Owner:CHINA THREE GORGES CORPORATION +1

Boiler combustion optimization control system for thermal power plant

The invention relates to a boiler combustion optimization control system of a thermal power plant, relates to the technical field of thermal power generation control, and aims to solve the problems of inaccurate multi-source data perception, slow control response and insufficient multi-target collaborative optimization capability under fire coal quality fluctuation and load change. The system comprises a data perception and fusion module, a working condition self-adaptive identification module, a multi-target dynamic optimization decision module and a distributed execution control module, and through multi-source data acquisition and feature extraction, depth time sequence mode identification, multi-target optimization model solving and distributed coordination control, the multi-target dynamic optimization decision module and the distributed execution control module are subjected to multi-source data fusion. Dynamic balance of boiler heat efficiency improvement and nitrogen oxide emission reduction is achieved, and adaptability and control precision of the system under complex working conditions are enhanced.
Owner:NORTHERN UNITED POWER CO LTD

Remote sensing image adaptive identification method and system for territorial space planning

The invention relates to the technical field of remote sensing image processing, and discloses a remote sensing image adaptive identification method and system for territorial space planning, and the method comprises the steps: obtaining a multi-source remote sensing image data set of a research region, feature extraction, cloud detection, quality evaluation and adaptive preprocessing are carried out; carrying out prototype network coding, calculating a category prototype and probability, and supporting fine tuning of a set; carrying out multi-scale cavity convolution and category scale attention fusion; evaluating the adaptability score of the comprehensive fusion feature map set, and carrying out weighted fusion, classification and normalization; change detection is carried out, stable and change regions are segmented, and time sequence context features are extracted and constrained optimization is carried out; entropy is fused, a boundary is decided, uncertainty is estimated, and weighted fusion is carried out according to a change area; conditional random field optimization, confidence level grading and connected domain identification are carried out; the automation level, the adaptive capacity and the recognition reliability of remote sensing monitoring of territorial space planning are improved.
Owner:LINYI CITY URBAN & RURAL PLANNING RESEARCH CENTER

Power distribution network fault identification drive accurate isolation method based on edge computing architecture

The invention discloses a power distribution network fault identification driving accurate isolation method based on an edge computing architecture, and relates to the technical field of power system automation, and the method comprises the following steps: S001, collecting voltage and current signals at each edge computing node of a power distribution network, analyzing the signal fluctuation amplitude and propagation time delay of different nodes based on the same fault event, and obtaining a fault event; and calculating a fault identification judgment difference degree between the nodes. According to the method, the identification credibility is quantified and abnormal node judgment is corrected through fault identification judgment difference analysis and topological constraint modeling; self-adaptive identification logic optimization is realized in combination with historical and real-time data; control priority and pre-simulation analysis are introduced, so that the feasibility and safety of the isolation action are improved; and finally, a closed-loop mechanism integrating recognition, simulation and feedback is constructed, and the fault response accuracy, coordination and operation stability of the power distribution network under a distributed architecture are remarkably improved.
Owner:GUANGDONG POWER GRID CO LTD INFORMATION CENT

Rigid-elastic coupling-oriented active and passive integrated control method for hypersonic flight vehicle

ActiveCN121325726AProgramme controlComputer controlActive feedbackModal filter
The invention belongs to the technical field of hypersonic flight vehicle control, and relates to a rigid-elastic coupling-oriented active and passive integrated control method for a hypersonic flight vehicle. The invention aims to realize stable tracking control of the elastic hypersonic flight vehicle. The method comprises the following steps: constructing a longitudinal dynamic model of the elastic hypersonic aircraft; self-adaptive identification of the elastic vibration frequency is realized through a cascaded self-adaptive filter; an elastic modal filtering estimation method is designed, and high-precision and low-cost elastic modal state quantity is provided for subsequent active feedback controller design; and then rigid-elastic coupling model decomposition is carried out, the control performance is ensured by using active disturbance rejection passive control for a rigid body subsystem, an RBF neural network is introduced for an elastic subsystem, an elastic mode is actively inhibited by using sliding mode control, and stable tracking of a reference instruction is realized. The method is an active and passive integrated control method for the hypersonic flight vehicle oriented to rigid-elastic coupling, and the application prospect is wide.
Owner:DALIAN UNIV OF TECH +1

Fault remote diagnosis and digital process maintenance method for water treatment equipment

The invention discloses a fault remote diagnosis and digital process maintenance method for water treatment equipment, and relates to the field of water treatment equipment operation and maintenance. The method comprises the steps of unifying time and semantics, generating a quality marking time sequence, and performing working condition benchmark and tracing; according to self-adaptive identification mechanism parameters, constructing a digital twinning and trusted domain, and comparing to obtain a residual error and anomaly in real time; forming root cause evidence and sorting under topology and energy and material closed constraints; generating scripts and rollback, gray scale issuing, sentry monitoring and transaction records through steady / transient simulation and constraint checking; and convergence, energy consumption, chemical dosing, water quality evaluation, precipitation versioning template recharging and closed-loop updating are carried out. Through unified working condition data and digital twinning mechanism-data fusion diagnosis, simulation-driven gray reversible execution and knowledge template recharging under quantitative evaluation, a traceable, reusable and migratable full-link remote diagnosis and process maintenance closed loop is constructed.
Owner:SHENZHEN JIUDA LIGHT IND MASCH CO LTD

Server PCB automatic detection system based on operation data acquisition and analysis

The invention belongs to the technical field of server detection, and discloses a server PCB automatic detection system based on operation data acquisition and analysis. The system is composed of an operation data distributed acquisition module, a preprocessing and synchronous time sequence correction module, a signal integrity real-time detection module, a thermal field dynamic distribution analysis module, a time sequence drift intelligent analysis module, a multi-dimensional joint feature extraction module and an abnormal mode adaptive identification module. A fault trend depth prediction module; and a self-learning feedback and online optimization module. Acquisition units carrying FPGA hardware are arranged at key nodes of a PCB of a server, distributed acquisition of current, voltage, temperature and other multi-source electrical data is achieved by means of the high-speed parallel acquisition characteristic of the acquisition units, after asynchronism and noise interference of the acquired data are eliminated through a preprocessing and synchronous time sequence correction module, all functional modules work cooperatively, and the multi-source electrical data are acquired. A whole-process online dynamic detection system from data acquisition to anomaly analysis is constructed, and anomaly can be quickly captured in a fault germination stage.
Owner:HUAIAN TECHUANG TECH CO LTD

Universe unattended intelligent monitoring method based on multi-source data fusion

The invention relates to the technical field of data processing, in particular to a global unattended intelligent monitoring method based on multi-source data fusion, and the method comprises the steps: obtaining a real-time feature vector of a to-be-recognized target to obtain a global discrimination score; evaluating the category uncertainty of the target to be identified; according to the category uncertainty, a dynamic weight used for model fusion is generated in a self-adaptive mode; and obtaining a local discriminant by using a pre-trained local detail model, carrying out weighted fusion on the local discriminant and the global discriminant by using a dynamic weight to obtain a final discriminant, and determining the category of the to-be-recognized target based on the final discriminant, thereby realizing adaptive recognition of the unmanned aerial vehicle and the birds. Through the technical scheme of the invention, a nonlinear decision boundary of the unmanned aerial vehicle and birds can be effectively constructed, and the recognition accuracy of a fuzzy target in a complex scene is remarkably improved.
Owner:JINAN ANXUN TECH CO LTD

Self-adaptive grabbing force control system and method for blanking manipulator of stamping line

The invention discloses a self-adaptive grabbing force control system and method of a stamping line blanking manipulator, and relates to the technical field of self-adaptive control, and the method comprises the following steps: extracting a plurality of protection layer types corresponding to a plurality of process nodes; when a grabbing instruction is received, the protection layer type corresponding to the procedure node where the target workpiece is located is determined, and a mechanical arm grabbing strategy is called; the method comprises the steps of collecting a surface image of a target workpiece, recognizing the surface image, collecting protective layer characteristics of the target workpiece, inputting the protective layer characteristics into a manipulator grabbing force control model for self-adaptive recognition, outputting grabbing force control instruction parameters, and controlling a manipulator to execute a grabbing action and carry out force control feedback adjustment. According to the mechanical arm, the technical problems that in the prior art, when stamping workpieces with different protection layers are subjected to precise recognition and matched with proper grabbing force, grabbing is unstable, the workpieces are prone to being damaged or clamping fails are solved, and the technical effect that the mechanical arm precisely recognizes the workpieces with the different protection layers and dynamically controls and adjusts force is achieved.
Owner:DALIAN JIYUN AUTOMATION TECH CO LTD

Bus peak load prediction method fusing transfer learning and peak load adaptive identification

The invention discloses a bus peak load prediction method fusing transfer learning and peak load adaptive identification, and the method comprises the steps: constructing a dynamic weight-driven transfer learning framework, and achieving the precise migration of multi-source bus knowledge to a target bus; introducing a self-adaptive threshold mechanism based on load volatility and a peak value proportion, and dynamically identifying peak values and conventional load time periods; and designing a customized loss function for strengthening the peak error weight and using the customized loss function for fine adjustment of the model, thereby remarkably improving the load prediction precision of the bus in a key period. The target bus prediction precision is obviously improved through multi-source bus transfer learning; a self-adaptive threshold identification mechanism realizes dynamic judgment of a peak time period sensitive to load fluctuation, and the perception capability of the model to a key load time period is enhanced; through the synergistic effect of the technical means, the overall prediction accuracy is finally improved, meanwhile, the prediction precision and stability of the peak load are remarkably improved, and the actual requirements of a power grid for high precision and high robustness of load prediction are met.
Owner:STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO

Method for constructing thinking cellular system for simulating spatio-temporal evolution of industrial chain nodes

The invention discloses a thinking cellular system construction method for simulating spatio-temporal evolution of industrial chain nodes, and relates to the technical field of brain network construction. Comprising the steps of obtaining a thinking cell vector space; obtaining a thinking cell state; obtaining an adjacent topological relation; establishing a logic evolution dynamic potential function; constructing a thinking cellular system according to the thinking cellular vector space, the thinking cellular state, the adjacency topological relation and the logic evolution dynamics potential function; and identifying the observed state and the hidden state of the industrial chain key node based on the thinking cellular system to obtain an identification result. According to the method, dynamic simulation is performed on spatio-temporal evolution of the industrial chain key node, the evolution path of the industrial chain key node state is explicitly expressed, the evolution rule is adjusted in real time to cope with environmental disturbance, adaptive identification and risk prediction of the industrial chain key node state are realized, and the external risk resistance of the industrial chain is improved.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Land space purpose control compliance intelligent identification and auxiliary determination system

The invention discloses a land space use control compliance intelligent identification and auxiliary determination system, and relates to the technical field of digital treatment. A data management module receives multi-source heterogeneous time sequence data to construct a dynamic graph structure substrate, and a probability scheduling module predicts global potential conflict probability by using a space-time graph neural network and performs calibration in combination with a historical conflict database; the graph enhancement module positions a key conflict path and a core node by reversely updating a conflict knowledge graph, and the reasoning execution module activates a rule engine to execute accurate matching in a region to be subjected to fine detection and outputs a deterministic conflict identifier; the fusion decision module finally fuses probabilistic prediction and rule judgment results to generate a mixed conflict list, and the feedback module sends the mixed conflict list to the execution terminal and optimizes the model based on feedback. According to the method, multi-level and self-adaptive identification of the land and space purpose conflict from wide-area prediction to accurate judgment is realized, and the supervision efficiency and the decision accuracy are improved.
Owner:邓钦文

Deep counterfeit multimedia identification method and system based on artificial intelligence

The invention provides a deep counterfeit multimedia identification method and system based on artificial intelligence, and relates to the technical field of artificial intelligence security. According to the method, high-precision forged content detection is realized through multi-modal feature extraction and link generation reasoning. The method specifically comprises the steps of multi-modal data acquisition and feature extraction, generated link reasoning and knowledge graph adaptation, multi-modal correlation analysis and dynamic threshold setting, forged path rule construction and decision model training, and self-adaptive identification strategy generation. According to the method, multi-modal features are fused, links are generated based on dynamic analysis of the knowledge graph, adaptive threshold judgment and targeted countering are achieved, the problems that a traditional method is insufficient in generalization ability, low in calculation efficiency and the like are solved, and the method can be widely applied to content authenticity identification in the fields of social media, public opinion and the like.
Owner:TIANJIN NAT CYBERNET SECURITY CO LTD

Multi-stage charging optimization method based on adaptive identification battery

The invention relates to the technical field of charging optimization, and discloses a multi-stage charging optimization method based on adaptive identification of a battery, and the method comprises the following steps: S101, in-situ detection and battery type identification; step S102, applying a current step and collecting a voltage response; s103, predicting the change of the terminal voltage along with time; step S104, determining a safe amplitude limiting current; step S105, determining a pre-deceleration factor; and step S106, judging full power, generating a quota recovery instruction, and returning to the step S104 for redistribution. Battery individual parameters are obtained through in-situ detection and micro-pulse identification, current quotas are dynamically distributed based on a constant voltage proportion, a safe target current is determined by combining voltage and power amplitude limiting, current distribution unbalance is avoided, the bus current utilization rate is maximized, voltage overshoot is inhibited by means of a first-order following strategy and a pre-deceleration factor, and the safety of a battery is improved. And stable switching is ensured by matching with constant-voltage inlet current clamping.
Owner:SICHUAN AEROSPACE INTERSTELLAR TECHNOLOGY CO LTD

Building outer wall facing layer hollowing defect monitoring device and monitoring method thereof

The invention provides a building outer wall facing layer hollowing defect monitoring device and a monitoring method thereof, and belongs to the technical field of building outer wall facade facing layer defect monitoring. The monitoring method comprises a temperature data acquisition process, a heat flow intelligent analysis process, a hollowing defect adaptive identification process, a temperature field dynamic optimization process, an environmental interference self-learning correction process, a multi-source data fusion diagnosis process, a defect trend prediction process, a visual interaction process and a resource intelligent distribution process. All the processes of the monitoring method are executed through a temperature collecting and processing end, and aiming at the problems of insufficient precision, large environmental interference, low intelligence, prediction deficiency and low resource efficiency in building outer wall facing layer hollowing defect detection, through a temperature sensor matrix, an intelligent data processing process and a multi-source data fusion design, the building outer wall facing layer hollowing defect monitoring method is provided. And the detection precision, the automation degree and the maintenance efficiency are obviously improved.
Owner:GUIZHOU CONSTR SCI RES & DESIGN INST OF CSCEC +1

Cross-material pavement disease adaptive identification method based on multivariate mixing enhanced intelligence

The invention discloses a multi-element mixed enhanced intelligence-based cross-material pavement disease adaptive identification method, relates to the technical field of road intelligent operation and maintenance, and solves the technical problems that the identification rate is suddenly reduced and the false detection and omission ratio is high in a cross-material scene due to the fact that a model is developed for a single material or a general model is used in the prior art. The method comprises the following steps: S1, constructing a cross-material pavement disease image sample library; s2, constructing a pavement disease identification visual large model; s3, constructing a pavement disease pixel-level integrated enhanced intelligent recognition model; and S4, inputting a to-be-detected image to the trained pavement disease identification visual large model and the pavement disease pixel-level integrated enhanced intelligent identification model respectively, obtaining fusion output according to the adjusted fusion weight, and finally realizing pavement disease multivariate hybrid enhanced intelligent identification. The method can be simultaneously suitable for disease identification tasks in various material environments such as asphalt pavements, cement pavements and composite material pavements, and high-precision intelligent identification in a cross-material scene is realized.
Owner:SOUTHWEST JIAOTONG UNIV

Intelligent test method and system for distribution automation terminal compatible with multiple protocols

The invention discloses a multi-protocol compatible intelligent test method and system for a power distribution automation terminal, and relates to the technical field of power distribution terminal test. The method comprises the following steps: acquiring basic information and historical test data of a tested terminal; automatically identifying and matching a communication protocol through a multi-protocol adaptive identification model, and generating a protocol conformance test template; according to the template, executing signal injection and collecting real-time response data, and calculating a terminal response matching degree and a protocol analysis accuracy parameter; and inputting the parameters into the test result evaluation model, and outputting a test result. Comprising an information acquisition module, a protocol identification and template construction module, a test execution and data acquisition module and a test evaluation module. According to the invention, automatic identification, standardized testing and intelligent evaluation of the multi-protocol terminal are realized, the testing efficiency, consistency and accuracy are improved, and the method is suitable for testing and diagnosis of distribution automation terminals of different models.
Owner:GUANGZHOU ONLY XINPU ELECTRICAL AUTOMATION CO LTD +1

Method for predicting thermal runaway of battery in transportation of electric vehicle based on edge AI

The invention discloses an edge AI-based battery thermal runaway prediction method during transportation of an electric vehicle, and the method comprises the steps: collecting multi-dimensional parameters of a battery pack during transportation of the electric vehicle, and carrying out the data fusion; performing adaptive identification based on the fused data to obtain a current scene type; then, endowing scene adjustment weights to the temperature gradient analysis data; performing fusion processing on the scene adjustment weight and the voltage fluctuation monitoring data, and extracting internal resistance change detection data; when the internal resistance change detection data exceeds a preset threshold value, generating an abnormal indication signal, extracting a dynamic change mode of multi-dimensional parameter fusion, updating a weight parameter, and obtaining a real-time weight vector; performing matrix operation on the fused data according to the real-time weight vector to obtain a comprehensive risk feature vector; and inputting the comprehensive risk feature vector into a machine learning model, determining a real-time risk assessment level, and obtaining a thermal runaway prediction result. The prediction precision and real-time performance of the thermal runaway risk of the battery pack in a complex environment are remarkably improved.
Owner:RES INST OF HIGHWAY MINIST OF TRANSPORT

Unmanned aerial vehicle video acquisition system and method combined with artificial intelligence

The invention relates to the technical field of video acquisition, and discloses an unmanned aerial vehicle video acquisition system and method combined with artificial intelligence, and the system comprises a scene distribution modeling module, a causal decoupling module, a sparse reasoning module, an evidence fusion module and a parameter adjustment module. The system achieves the comprehensive effects of scene adaptive identification and resource dynamic allocation, feature generalization learning and detection robustness enhancement, calculation load intelligent regulation and control and abnormal information isolation, multi-scale evidence reliable fusion and parameter autonomous optimization. Aiming at the problem of unreasonable resource allocation caused by the fact that a fixed detection strategy in the background technology cannot adapt to scene change, the system adopts real-time statistical modeling and scene type recognition technologies to realize matching of detection resources and scene requirements, and a traditional detection model excessively depends on training data distribution to cause insufficient generalization ability.
Owner:TAICANG DIGITAL ECONOMY TECHNOLOGY DEVELOPMENT CO LTD

Self-adaptive pulse flow CIP cleaning control and energy efficiency optimization system

The invention relates to the technical field of CIP cleaning, and discloses an adaptive pulse flow CIP cleaning control and energy efficiency optimization system, which comprises a data acquisition module, an intelligent decision and decision generation module, an execution and control module, a feedback and optimization module and a maintenance and management module, through a multi-mode flow field intelligent control and cleaning object self-adaption identification technology, various scenes of CIP cleaning can be comprehensively covered, conventional cleaning efficiency indexes are concerned, elements such as pipe diameter adaptability, dirt type pertinence and flow field mode adaptability are also included, the cooperation process of pulse parameters and a flow field is deeply optimized, and the cleaning efficiency is improved. The cleaning effect can be more accurately matched with real requirements of different cleaning objects, and a more scientific basis is provided for high efficiency and pertinence of industrial cleaning.
Owner:TIANJIN UNIV OF SCI & TECH

Method and equipment for controlling virtual precession rotating speed of micro-hemisphere gyroscope in full-angle mode and medium

The invention discloses a method and equipment for controlling the virtual precession rotating speed of a micro-hemisphere gyroscope in a full-angle mode and a medium. The method comprises the following steps: enabling the micro-hemisphere gyroscope to be in the full-angle mode through three loops of amplitude, orthogonality and frequency tracking; applying a control force in the angle control equation to force the standing wave to self-rotate at a corresponding virtual angular velocity; in a standing wave precession state, identifying a total loop gain parameter in real time by using an adaptive identification technology; and the excitation voltage is multiplied by an external given excitation voltage to obtain a compensated excitation voltage, so that on-line compensation of the standing wave virtual procession is realized, and the accuracy and stability of the rotating speed of the virtual procession are improved.
Owner:NANJING INST OF TECH

Decoration garbage recoverable component automatic identification system based on multi-modal feature fusion

The invention relates to the technical field of intelligent sorting of decoration garbage, and discloses an automatic recognition system for recyclable components of decoration garbage based on multi-modal feature fusion. The system comprises a multi-modal data acquisition module, a cross-modal feature fusion module, a recyclable component discrimination module and a self-adaptive identification strategy optimization module. The multi-modal data acquisition module constructs a framework based on a sample library, synchronously acquires visible light images, near infrared spectrums and three-dimensional point cloud data and outputs a feature set; the cross-modal feature fusion module performs time domain, frequency domain and space dimension comparison on the feature set and a standard library to generate a hierarchical feature incidence matrix; the recoverable component discrimination module inputs the matrix into a spatial semantic analysis network, generates a spatial thermal distribution diagram in combination with spatial distribution parameters and position information, and locates an enrichment region; and the adaptive module configures parameters according to the parameters, starts multi-modal synchronous acquisition for a high-probability region, and applies a characteristic disturbance test to adjacent types of samples.
Owner:XIAN URBAN MANAGEMENT RESEARCH INSTITUTE

Fault diagnosis system for aviation turboshaft engine

The invention discloses a fault diagnosis system for an aviation turboshaft engine, and relates to the technical field of fault diagnosis. An acquisition module acquires horizontal, vertical and axial vibration signals; the processing module is used for generating real-time feature vectors by introducing dynamic short-time Fourier transform, variational mode decomposition and singular value decomposition of an unfixed-width Gaussian window; the incremental diagnosis module calculates the matching degree between a real-time feature vector or a prediction feature vector and a known class through a dynamic expansion network, selects to belong to the known class or triggers an expansion mechanism according to an adaptive resonance theory, constructs joint loss by using a Bayesian learning framework after expansion, and performs Gaussian process modeling; loss is determined through Bayesian optimization, and network parameters are updated; the prediction module generates a prediction feature vector when there is no fault; the maintenance module sends or stores a maintenance scheme according to needs, self-adaptive recognition of known classes and new fault classes is achieved, the state can be pre-judged in advance, the operation safety of the engine is effectively guaranteed, and the maintenance cost is reduced.
Owner:SHANGHAI HANGSHU INTELLIGENT TECH CO LTD

Electromagnetic bearing rotor system unbalance control method based on DDPG algorithm

The invention relates to an electromagnetic bearing rotor system unbalance control method based on a DDPG algorithm, and the method comprises the following steps: building a rotor dynamics equation according to rotor dynamics, and carrying out the decoupling control; constructing a compensation current, extracting an unbalance coefficient in the compensation current, and constructing a self-adaptive identification equation; constructing a DDPG intelligent agent, fusing position errors, system response and control output, and designing a multi-target reward function through a normalized weighted optimization strategy; and a DDPG intelligent agent is used to optimize an unbalance coefficient identification parameter, and a compensation current is dynamically adjusted in combination with the rotating speed of the rotor, so that unbalance force disturbance is counteracted. According to the invention, identification is carried out by combining the deep reinforcement learning algorithm DDPG according to the unbalance coefficient reflected to the two ends of the rotor by the unbalance force borne by the rotor, the identification and unbalance compensation efficiency of the unbalance coefficient is improved, and rapid, stable and efficient compensation of a rotor system is realized.
Owner:NANCHANG HANGKONG UNIVERSITY

E-commerce abnormal group adaptive identification and processing method and system

The invention relates to an e-commerce abnormal group adaptive identification and processing method and system, and the method comprises the steps: carrying out the cross-modal association of multi-modal features extracted from the interaction data of a multi-modal e-commerce platform, and outputting an abnormal group probability score; according to an association relationship between a historical library matching number and a real-time access amount, an influence relationship of abnormal access acceleration and a proportional relationship between an abnormal shop number and a total number of active shops, constructing a rampant degree quantification module, and calculating a rampant degree index; adaptively adjusting a processing rule updating period according to the rampant degree index; according to the processing rule updating period, the processing rule is updated and executed by adopting a large language model; and after executing according to the updated processing rule, returning real-time data to the rampant degree quantification module, and performing quantitative evaluation on the processing effect as a historical processing effect score. Compared with the prior art, the method has the advantages of being efficient, accurate, reliable and capable of achieving self-adaptive closed-loop adjustment.
Owner:SHANGHAI JIAOTONG UNIV

Systems and methods for predictive coding analysis for electronic discovery

Systems and methods for analyzing documents are provided herein. A plurality of documents and user input are received via a computing device. The user input includes hard coding of a subset of the plurality of documents, based on an identified subject or category. Instructions stored in memory are executed by a processor to generate an initial control set, analyze the initial control set to determine at least one seed set parameter, automatically code a first portion of the plurality of documents based on the initial control set and the seed set parameter associated with the identified subject or category, analyze the first portion of the plurality of documents by applying an adaptive identification cycle, and retrieve a second portion of the plurality of documents based on a result of the application of the adaptive identification cycle test on the first portion of the plurality of documents.
Owner:OPEN TEXT CORPORATION

Method for analyzing risk information in public data based on multi-modal artificial intelligence

The invention relates to the technical field of information security, and discloses a method for analyzing risk information in public data based on multi-modal artificial intelligence, and the method comprises the steps: collecting multi-modal data, and carrying out the data preprocessing of the multi-modal data; extracting high-dimensional features of the preprocessed modal data; obtaining a confidence coefficient score of the high-dimensional feature of each modal data; inputting the modal availability vector and the confidence score into a multi-modal fusion model, and calculating an attention fusion weight; performing weighted fusion on the high-dimensional features of the modal data according to the attention fusion weight to generate multi-modal joint feature representation; based on the multi-modal joint feature representation, outputting a risk probability and a type label; and when the output risk probability exceeds a preset threshold value, generating a structured early warning event, and automatically pushing the structured early warning event to a subsequent processing system to trigger a linkage response. According to the method, the risk information in the public data is accurately, efficiently and adaptively identified and disposed, and the automation level and response efficiency of network security protection are effectively improved.
Owner:XIAMEN MEIYABAIKE INFORMATION SECURITY RES INST CO LTD

Energy-saving optimization method and device for thermal power auxiliary engine system, electronic equipment and storage medium

The invention provides an energy-saving optimization method and device for a thermal power auxiliary engine system, electronic equipment and a storage medium, relates to the technical field of data processing, and aims to realize multi-physical-scale and multi-time-scale state estimation of the thermal power auxiliary engine system by constructing a hybrid dynamic model fusing a mechanism model and a time sequence prediction model. Meanwhile, on-line self-adaptive identification and correction are carried out on key operation parameters in the hybrid dynamic model based on the state estimation result so as to track the performance change of the auxiliary machine equipment, and a collaborative optimization control strategy of the system is generated by using the corrected hybrid dynamic model and adopting a multi-target dynamic optimization algorithm under the condition that a preset operation constraint condition is met. And the collaborative optimization control strategy is converted into an executable control instruction through a hierarchical coordination control mechanism, and the executable control instruction is issued to a field controller of each auxiliary machine equipment, so that the problem of relatively large deviation of an optimization result effect caused by limited processing capacity of a thermal power auxiliary machine system under a dynamic working condition and difficulty in self-adaptive updating of model parameters can be solved.
Owner:NORTHERN UNITED POWER CO LTD

Beverage sterile cold filling line self-adaptive PID closed-loop control system and control method thereof

The invention relates to the technical field of automatic control, and discloses a beverage sterile cold filling line adaptive PID closed-loop control system and a control method thereof, and the system comprises a process event perception and prediction module which is used for analyzing a production instruction into a process event containing future working condition change information; the event-based adaptive identification strategy module is used for dynamically adjusting a forgetting factor of an identification algorithm according to a process event and improving the identification sensitivity during working condition switching; the dynamic coupling factor online identification module is used for identifying a dynamic coupling factor matrix of the system in real time; and a predictive feedforward-feedback compound controller. According to the method, the problems of large overshoot and long stabilization time caused by parameter time varying and multivariable strong coupling in dynamic processes such as formula switching of a production line are solved, and the adaptive capacity, robustness and control precision of a control system are remarkably improved.
Owner:LIAOCHENG HAOJIAYI BIOLOGICAL DAIRY CO LTD