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512 results about "Cause analysis" patented technology

Metro equipment fault intelligent diagnosis method and system assisted by large language model

The invention provides an intelligent subway equipment fault diagnosis method and system assisted by a large language model, and relates to the technical field of data processing, and the method comprises the steps: extracting key information through a large language model, constructing a multi-dimensional equipment fault knowledge graph, obtaining a historical fault data set, and extracting key fault monitoring parameters related to the fault, obtaining a sensing state data set, and judging whether the sensor state data is abnormal or not; and calling a pre-constructed sensing distortion correction algorithm, generating a fault monitoring correction parameter and executing parameter correction, inputting multi-dimensional monitoring data into a diagnosis engine driven by a large language model, and outputting a most possible fault type, cause analysis and recommendation processing strategy and a fault identification report. The technical problems that in the prior art, due to the lack of fusion modeling capacity for the unstructured fault text and the structured monitoring data, the intelligent degree of fault diagnosis is low, and accurate recognition and causal analysis are difficult to achieve are solved, and the fault recognition response speed and accuracy are improved.
Owner:DALIAN METRO TECH CO LTD

SCL field safety accident analysis and early warning method and system, medium and program product

The invention discloses an SCL field safety accident analysis and early warning method and system, a medium and a program product, and the method comprises the steps: carrying out the distributed cleaning and feature extraction of multi-source heterogeneous monitoring data, and obtaining a multi-dimensional time sequence feature flow; constructing a dynamic association network of a security state; identifying a key influence factor chain, and establishing a semantic analysis model; constructing a safety threshold system; evaluating the multi-dimensional time sequence characteristic flow by using a safety threshold system; when the multi-dimensional time sequence characteristic flow triggers early warning, performing tracing analysis by using a semantic analysis model to obtain a root event triggering the early warning, and simulating the development trend of the root event based on a preset evolution model; determining a predicted risk range and a risk type according to the tracing cause analysis result and the accident development trend; and the corresponding accident early warning scheme is matched in the preset database according to the risk range and the risk type, and the accident early warning scheme is sent to the monitoring terminal, so that the accuracy of judgment and classified early warning of different types of safety accidents is improved.
Owner:RUNHE SECURITY TECH CO LTD

Industrial system automatic fault diagnosis method based on large language model

The invention discloses an industrial system automatic fault diagnosis method based on a large language model. According to the method, a three-layer mapping system of industrial data, natural language description and knowledge reasoning is constructed, field multi-source sensor data are subjected to semantic conversion, and a quantitative calculation model based on a large language model is constructed based on historical data and logs. And a fault case is matched in real time with the help of a retrieval-enhancement generation technology to serve as a reference, the fault case and abnormal information are input into a knowledge reasoning model based on a large language model together, a structured logical reasoning chain is generated, and a diagnosis conclusion containing candidate faults, cause analysis and disposal suggestions is further output. Meanwhile, through user feedback and a reinforcement learning mechanism, the model and the knowledge base are adaptively updated, the defects of traditional static rules and expert experience are effectively overcome, the accuracy, interpretability and robustness of fault detection are remarkably improved, and the method adapts to complex and changeable working condition requirements.
Owner:ZHEJIANG UNIV

Thermal power plant thermal instrument fault diagnosis method and system based on vibration analysis

The invention provides a thermal power plant thermal instrument fault diagnosis method and system based on vibration analysis, and relates to the technical field of fault diagnosis, and the method comprises the steps: collecting and processing a vibration signal of a thermal instrument, extracting an optimized vibration feature vector, constructing a hybrid neural network model, and training the hybrid neural network model to obtain an optimized fault diagnosis model; performing fault diagnosis on the vibration feature vector, and generating a fault type, possibility and confidence; and performing fault risk assessment and case reasoning, and generating a fault reason analysis report and a maintenance suggestion.
Owner:TIANJIN DATANG INT PANSHAN POWER GENERATION

Failure chain quantitative analysis and risk assessment method and system based on multi-level security model

The invention discloses a failure chain quantitative analysis and risk assessment method and system based on a multi-level security model, and aims to solve the defects that accident cause analysis of a complex social technology system is inaccurate, and a risk assessment result is lack of effective verification. According to the method, a multi-level causal model is systematically constructed, a multi-dimensional failure chain (MDFC) is extracted, multi-dimensional risk quantification is performed on the MDFC, a directed weighted failure propagation network is constructed based on the multi-dimensional risk quantification, and structural features of the directed weighted failure propagation network are analyzed to identify key risk factors. The core innovation of the method is that reverse accident reason tracing and forward risk propagation path analysis based on the weighted network are fused, mutual verification and iterative optimization are realized by comparing analysis results of the two paths, so that the understanding of an accident evolution mechanism is deepened, and the reliability of evaluation is improved. The system vulnerability can be revealed more comprehensively, powerful support is provided for formulating accurate risk control measures, and the overall safety level of a complex system is improved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Automated root cause analysis of anomalies

A data processing system implements performing a root cause analysis that includes identifying a first anomalous signal data predictive of a root cause of a first anomaly in signal data received from a computing system, analyzing the sub-signals of the first anomalous signal data to generate labeled training data, training a gradient boosted tree model using the labeled training data, generating a decision tree based approximating a predictive performance of the gradient boosted tree model, determining insights data predictive of the root cause of the first anomaly based on the gradient boosted tree model and the decision tree, aggregating the insights and analyzing the aggregated insights data to determine a predicted root cause for the first anomaly, determining a confidence level associated with the predicted root cause, and categorizing the predicted root cause into one of a plurality of categories based on the confidence level.
Owner:MICROSOFT TECHNOLOGY LICENSING LLC

Potential landslide identification method and system based on surface deformation cause analysis

The invention discloses a potential landslide identification method and system based on surface deformation cause analysis. The method comprises the following steps: acquiring radar data and preprocessing the radar data to obtain surface deformation phase data; an IDANet-1 network is constructed and trained, and an earth surface deformation abnormal area is obtained through prediction; respectively processing the terrain DEM data, the multi-temporal MODIS data and the optical image data to obtain ground surface settlement type, glacier snow melting type and mine collapse type ground surface deformation areas, performing union set operation, and performing difference set operation on the union set operation and a ground surface deformation abnormal area to obtain a landslide type ground surface deformation target; training an IDANet-2 network by using the landslide type surface deformation identification data set; and inputting the wide-area comprehensive remote sensing data into the IDANet-2 network model for reasoning to obtain wide-area potential landslide hidden danger distribution information. Through the technical scheme of the invention, multi-level combination of multi-source and multi-mode remote sensing data is realized, accurate identification of earth surface deformation information is realized, and the identification efficiency of large-area potential landslide hidden dangers is effectively improved.
Owner:CHINA AERO GEOPHYSICAL SURVEY & REMOTE SENSING CENT FOR LAND & RESOURCES

Railway-locomotive diesel-engine fault diagnosis system based on knowledge graph

The present invention relates to the technical field of railway-locomotive diesel-engine fault diagnosis systems, and particularly relates to a railway-locomotive diesel-engine fault diagnosis system based on a knowledge graph. The system comprises a data collection module, a transmission module, a preprocessing module, an algorithm application module, a storage module and a front-end display module, wherein one end of the data collection module is used for performing signal collection by means of a sensor, and the other end thereof is connected to the preprocessing module by means of the transmission module; the preprocessing module performs diagnosis and positioning on a specific faulty part in combination with a fault classification algorithm of the algorithm application module; and an original signal collected by the data collection module and algorithm diagnosis information are scheduled and stored in the storage module by means of back-end management software, and display interaction materials are then provided for the front-end display module. The present invention retains the previous operation mode of an expert knowledge base in terms of fault diagnosis so as to ensure the basic accuracy of cause analysis, and a neural network intelligent algorithm is introduced to reduce the manual workload and individual difference of people in terms of professionalism.
Owner:CRRC QISHUYAN CO LTD

Power grid fault intelligent diagnosis method and system based on multi-mode cooperation

The invention discloses a power grid fault intelligent diagnosis method and system based on multi-mode cooperation, and belongs to the technical field of power system fault diagnosis. The method comprises the following steps: collecting and off-line importing multi-modal data of primary equipment and secondary equipment of a multi-space power system in a power grid fault range in real time and standardizing the multi-modal data, and sequentially inputting the standardized multi-modal data into a local edge professional model, the method comprises the following steps: preliminarily reasoning fault properties in combination with a local knowledge base, inputting a knowledge-embedded causal reasoning large model deployed at a cloud end, generating an edge-cloud fault collaborative diagnosis model, iteratively updating the edge-cloud fault collaborative diagnosis model in combination with a multi-modal fault case library, and converting newest collected and imported power grid fault data into a multi-modal fault case library; and inputting the updated edge-cloud fault collaborative diagnosis model, generating a latest fault diagnosis report, and realizing the intelligent diagnosis of the power grid fault based on multi-modal collaboration. According to the invention, the power grid fault reason analysis performance and the identification accuracy are improved.
Owner:BEIJING SIFANG JIBAO ENG TECH +1

Water conservancy project risk assessment method and system based on artificial intelligence

The invention discloses a water conservancy project risk assessment method and system based on artificial intelligence, and relates to the technical field of risk assessment management, and the method comprises the steps: obtaining a feature parameter set; calling an information value quantification function to quantitatively analyze the prediction capability of the water conservancy project risk coefficient to obtain a first value coefficient; if the first value coefficient reaches a preset threshold value, adding the first feature to a candidate feature factor list; and activating the accident cause Bayesian network model to perform cause analysis on the candidate feature factor list to obtain a target cause chain and a target key feature factor list, performing dynamic feature collection on the target water conservancy project to obtain a real-time feature parameter set, and performing normalization calculation analysis to obtain a target risk coefficient of the target water conservancy project. The technical problem of low risk assessment precision caused by lack of systematic analysis of water conservancy project multi-source features in the prior art is solved, and the technical effect of improving the water conservancy project risk assessment precision is achieved.
Owner:陕西畅亿科技有限公司

Remote monitoring analysis method and system based on operation data of power equipment

The invention relates to the technical field of electric power energy monitoring, and discloses a remote monitoring analysis method and system based on electric power equipment operation data, and the method comprises the steps: collecting the multi-element energy operation parameters of a multi-source energy system and the multi-element energy use parameters of a user side in real time; after the collected data are preprocessed, the preprocessed equipment operation state data are evaluated, and an electric power equipment operation state index is obtained; whether equipment faults exist or not is judged according to power equipment operation state indexes, virtual mapping of a multi-source energy system is constructed, and system operation conditions under different energy scheduling strategies are simulated in real time by combining user energy demand prediction and external environment changes; when potential energy supply abnormity or equipment failure is detected, a multi-stage early warning mechanism is triggered, and a decision report including abnormity positioning, reason analysis, energy scheduling optimization and equipment maintenance disposal suggestions is generated, so that potential problems can be found in time, and the stability and reliability of energy system operation are improved.
Owner:YIKONG ZHICHUANG TECH CO LTD

Fault reason analysis method for electric power informatization system

The invention relates to an electric power informatization system fault cause analysis method, which comprises the following steps: step 1, in an offline stage, constructing a fault analysis decision tree according to an electric power business system document and knowledge and experience of operation and maintenance personnel, and registering various API tools required to be used in a diagnosis process; 2, in an online stage, generating a fault description according to a fault occurring in the system, then matching the fault analysis decision tree in the step 1 according to a keyword in the fault description, traversing the fault analysis decision tree by a control program, and performing fault analysis on the fault analysis decision tree; and combining the fault description, the execution decision of the nodes in the tree, the callable API tool and the historical fault information into a cue word template, and sending the cue word template to the large model, so that the large model analyzes the root cause of the system fault. According to the invention, the troubleshooting and positioning efficiency of the system can be improved.
Owner:STATE GRID TIANJIN ELECTRIC POWER COMPANY

Root cause analysis method and device based on space-time dependency graph, equipment and medium

The invention relates to the technical field of artificial intelligence, can be applied to business scenes such as financial science and technology and medical health, and discloses a root cause analysis method and device based on a space-time dependency graph, equipment and a medium. Comprising the steps of constructing a space-time dependency graph, generating a diagnosis path blueprint, identifying a fault source and a root cause entity type, generating a graph query statement, executing query and performing cause and effect verification, and outputting a root cause analysis report. And the causal reasoning and root cause positioning of the system state change are realized by fusing the graph structure information and the natural language processing capability. Through cooperative processing of a language model and a graph data structure, fault symptom information and system structured state data are deeply fused, a path is generated in the graph structure, and a causal relationship is verified, so that the ability of understanding a complex system state evolution chain is improved, and accurate identification and diagnosis of root causes are realized. And the accuracy and the automation level of root cause analysis are obviously enhanced.
Owner:PING AN TECH (SHENZHEN) CO LTD

Road traffic accident cause analysis and responsibility judgment method and system

The invention discloses a road traffic accident cause analysis and responsibility judgment method and system, and relates to the technical field of traffic management data processing, and the method comprises the steps: carrying out the credible collection of multi-source data, and constructing an evidence chain; performing multi-source data preprocessing and cross-modal fusion optimization; performing multi-dimensional cause intelligent analysis; performing responsibility judgment based on a quantification rule; and the responsibility judgment result is subjected to multi-dimensional rechecking and rule iteration adaptation. According to the road traffic accident cause analysis and responsibility judgment method and system, through a full-process closed-loop design of data acquisition, preprocessing, cause analysis, responsibility judgment, re-checking iteration and report evidence storage, technologies such as multi-source perception and an AI algorithm are integrated; the method solves the problems of uncredible evidence chain, one-sided cause traceability, non-uniform judgment standard, low cooperation efficiency and the like in traditional accident processing, realizes intelligence, standardization, compliance and traceability of accident processing, remarkably improves the credibility, processing efficiency and judicial suitability of a judgment result, and provides core technical support for modernization of traffic control.
Owner:XIAN AERONAUTICAL UNIV

Geological disaster early warning device

The invention relates to the technical field of geological disaster early warning, and discloses a geological disaster early warning device, which comprises an acoustic electromagnetic fusion sensor array for collecting multi-physical field data related to the internal structure change of a rock-soil body; the data pre-processing and feature extraction module is used for performing pre-processing and feature extraction on the original multi-physics field data so as to identify the change features of the internal structure of the rock-soil body; the multi-physics field collaborative inversion module reconstructs the internal structure distribution of the rock-soil body by adopting a multi-physics field collaborative inversion algorithm; the structure change cause analysis and risk assessment module is used for analyzing causes of internal structure change of the rock-soil body and assessing potential geological disaster risks; the grading early warning information generation module is used for generating targeted grading early warning information; according to the invention, high-precision monitoring of the internal structure change of the rock-soil body is realized through an acoustic electromagnetic fusion sensing technology, the monitoring precision is improved, and possible landslide or collapse events can be predicted in advance.
Owner:JIANGSU EAST CHINA NONFERROUS METALS DEEP GEOLOGICAL EXPLORATION CO LTD (RESOURCE SURVEY & EVALUATION RES INST OF EAST CHINA GEOLOGICAL EXPLORATION BUREAU OF JIANGSU NONFERROUS METALS)

Mold defect detection method and system based on image recognition technology

The invention relates to the technical field of defect detection, in particular to a mold defect detection method and system based on an image recognition technology. The method comprises the following steps: acquiring a parting surface image of a target mold; performing region segmentation on the parting surface image to generate parting surface contour data; identifying a mold closing gap of the parting surface contour data, and generating a parting surface gap distribution diagram; an ejection mechanism of the mold is positioned based on the parting surface gap distribution diagram, and position coordinates of the ejection mechanism are obtained; controlling an image acquisition device to shoot a local area of the ejection mechanism according to the position coordinates of the ejection mechanism to obtain a local high-definition image of the ejection mechanism; performing ejector pin assembly segmentation on the local high-definition image of the ejection mechanism, identifying the contour of an ejector pin positioning plate and extracting coordinates of a mounting hole; according to the method, high-precision identification and cause analysis of mold defects are realized through precise positioning, refined defect classification and process simulation, and the defects of inaccurate positioning, fuzzy identification and lack of dynamic adaptation in traditional detection are overcome.
Owner:GUANGDONG OCEAN UNIVERSITY +1

Traffic anomaly and congestion cause analysis method and system based on knowledge graph

The invention provides a traffic abnormity and congestion cause analysis method and system based on a knowledge graph, and relates to the technical field of intelligent traffic perception, and the method comprises the steps: carrying out the target detection through employing preprocessed laser radar point cloud data, recognizing traffic participants, carrying out the continuous frame tracking of the traffic participants, and extracting the motion track and behavior characteristics in an event dimension; identifying a behavior event of the traffic target based on the motion trail and the behavior characteristics, binding the identified behavior event of the traffic target to a corresponding target entity, and performing target behavior modeling to form standardized structured information; based on structured information of a traffic target, an intersection-oriented traffic state knowledge graph is constructed, a rule-based abnormal event judgment module is utilized to perform semantic analysis on behavior and event nodes in the traffic state knowledge graph, abnormal traffic events are identified, and potential causes causing traffic congestion are traced. According to the invention, refined understanding and active perception of the intersection traffic state can be realized.
Owner:SHANDONG UNIV

Construction site pollution source analysis method and system

The invention provides a construction site pollution source analysis method and system, and the method comprises the steps: determining the atmosphere pollution source intensity information of each monitoring region of a construction site based on a preset Gaussian diffusion model, environment monitoring data and meteorological data, and carrying out the detection and recognition of a video stream through a pre-trained target detection model, the comprehensive score of the construction site in a preset time period is determined based on a preset multi-dimensional scoring model, the environment monitoring data, the detection and recognition result and the atmospheric pollution source intensity information, and the key pollution information of the construction site is determined based on the atmospheric pollution source intensity information and the satellite image data and the construction progress information of the construction site; and performing pollution cause analysis based on the environmental monitoring data and historical construction data of the construction site, and determining a pollution source analysis result of the construction site based on the comprehensive score, the key pollution information and the pollution cause analysis result. With the adoption of the method, the high-real-time pollution source analysis requirement caused by quick change of the actual site construction condition of the construction site can be met.
Owner:XIANGZUSHEBEI COM

Structural design method and device applied to brake pressure sensor

The invention relates to the technical field of pressure sensors, and discloses a structural design method and device applied to a brake pressure sensor, and the method comprises the steps: analyzing the material performance of a sensor material, and analyzing the material demand of a brake demand related to the sensor material; the material matching degree between the material performance and the material requirement is calculated, and the structural material of the brake application scene is determined from the sensor materials; querying geometric parameters of the assembled sensor, and performing force-electricity simulation on the assembled sensor through the piezoelectric constitutive model; the brake sensitivity of the assembled sensor is calculated according to the force-electricity simulation result, the brake failure rate of the assembled sensor is calculated according to the force-electricity simulation result, and defect reason analysis is conducted on the brake sensitivity and the brake failure rate; and querying a structure optimization material of the assembled sensor, and performing structure optimization on the assembled sensor by utilizing the reason analysis result and the structure optimization material. According to the invention, the structural design and materials can be optimized, and the sensitivity and environmental adaptability of the sensor are improved.
Owner:SHENZHEN AMPRON TECH CORP

Transformer area low-voltage cause analysis method, equipment and medium

The invention discloses a transformer area low-voltage cause analysis method and device and a medium. The method comprises the following steps: acquiring acquisition information of a transformer area in real time; determining a low-voltage event of the transformer area according to the acquired information; the causes of the low-voltage event are analyzed through the collected information to obtain the low-voltage cause, and the low-voltage cause comprises single-phase disconnection, single-phase grounding, three-phase imbalance, distribution transformer outlet metering device fault, low power factor, unreasonable transformer gear and low-voltage abnormity; and performing intelligent decision according to the low-voltage cause to obtain conclusion information. By acquiring the acquisition information of the existing power distribution automation system and determining the low-voltage event and the specific low-voltage cause according to the acquisition information, low-voltage monitoring and cause analysis can be realized without additional equipment, the cause of the low voltage in the transformer area can be analyzed and judged in real time, the analysis cost is low, the applicability is wide, and the method is suitable for popularization and application. The method can be widely applied to the technical field of power distribution networks.
Owner:ZHUHAI XUJIZHI ELECTRIFIED WIRE NETING AUTOMATIONCO +1

Shale reservoir three-dimensional sweet spot prediction method based on physical-data dual drive

The invention belongs to the technical field of petroleum and natural gas development engineering, discloses a shale reservoir three-dimensional dessert prediction method based on physical-data dual drive, and solves the defects of an existing shale reservoir dessert evaluation method in the aspect of space continuity. The prediction method comprises the following steps: (1) constructing a three-dimensional attribute field, and forming a multi-channel standardized three-dimensional data volume through voxelization processing; (2) fusing multi-parameter attributes of the shale reservoir and constructing a multi-channel three-dimensional feature body; (3) constructing a dessert prediction model based on the physically constrained space-attribute joint attention three-dimensional convolutional network; and (4) calculating a comprehensive dessert index, performing dessert grading and cause analysis, analyzing and quantifying the contribution degree of each attribute to dessert grading, and analyzing the dessert connectivity and the advantage extension direction. The predicted productivity potential and fracturing potential dessert field keeps reasonable gradient change and continuous distribution in the inter-well area, and the inter-well prediction error is small.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A wind power equipment accident diagnosis method and system based on knowledge graph

The present invention proposes a wind power equipment accident diagnosis method and system based on knowledge graph, and the method comprises the following steps: obtaining wind power equipment operation and maintenance data and standard specification data, and preprocessing the data to construct a wind power equipment safety data set; performing keyword extraction and text data annotation on text data in the wind power equipment safety data set to construct a keyword corpus, and performing word vector training on the annotated text to obtain a wind power equipment safety data word vector set; constructing an entity recognition model based on a BiLSTM-CRF algorithm combined with a similarity algorithm, and outputting an entity recognition prediction result; and performing relationship extraction and attribute extraction on wind power equipment safety data to construct a wind power equipment safety knowledge graph; by integrating the operation and maintenance data of wind power equipment and standard specification data in the safety field, constructing and optimizing the knowledge graph, accurate diagnosis and cause analysis of wind power equipment faults are achieved, thereby improving the diagnosis efficiency of wind power equipment.
Owner:ZHIXIN ENERGY TECH CO LTD +1

Bridge monitoring data abnormal value intelligent judgment and processing system

The invention provides a bridge monitoring data abnormal value intelligent judgment and processing system, which comprises a monitoring module used for acquiring dynamic displacement data of a plurality of monitoring points of a bridge in a non-contact manner; the preprocessing module is used for performing time synchronization and quality fusion on the displacement, load and environment data to generate multi-dimensional time sequence data; the anomaly recognition module is used for extracting collaborative deformation and power fingerprint features and performing anomaly recognition and initial classification based on the feature deviation degree; the abnormality diagnosis module is used for performing abnormality cause analysis in combination with the load and the environmental condition and outputting an abnormality diagnosis result; and the strategy generation module is used for generating a grading early warning and disposal strategy according to the diagnosis result and the structural key index usage degree. The accuracy and efficiency of bridge structure safety monitoring can be improved, and safe operation of a bridge is guaranteed.
Owner:ZHONGJIAO ROAD CONSTR TRANSPORTATION TECH CO LTD

Energy storage device damage diagnosis and interaction system based on penetration vision and large model

The invention provides an energy storage device damage diagnosis and interaction system based on penetration vision and a large model, and relates to the technical field of energy storage device damage diagnos.The energy storage device damage diagnosis and interaction system comprises a penetration type 3D sensing module, a periodic topology analysis module, a feature mapping and retrieval module and a large model reasoning and interaction module, and the energy storage device is scanned and reconstructed; the method comprises the following steps: constructing a time-space decoupling periodic Transform network, introducing a periodic mask matrix to force the network to pay attention to a repeatability rule of an internal structure of a battery, and identifying internal tiny deformation and structural damage by calculating topological consistency under the condition that a large amount of negative sample training is not needed; visual defect features are mapped into text embedding by utilizing a feature projection technology, a diagnostic report containing physical cause analysis and maintenance suggestions is generated by combining a retrieval enhancement generation technology and a large language model, and a user is supported to perform interactive questions and answers in a natural language. The method can solve the problems that in the prior art, three-dimensional deformation is difficult to quantify, small samples are difficult to train, and intelligent decision-making ability is lacked.
Owner:TIANFU YONGXING LAB

Fault analysis method of energy storage system

The invention relates to the technical field of energy storage system fault analysis, in particular to an energy storage system fault analysis method, which comprises the following steps: arranging a plurality of sensors, and collecting fault associated data of an energy storage system; constructing a fault analysis model, and generating a fault analysis result according to the fault associated data; detecting whether abnormal data exists in the fault associated data or not, if yes, performing fault multi-stage analysis, and obtaining fault analysis results, including obtaining a first fault analysis result and a second fault analysis result by inputting the fault associated data and the corrected fault associated data into a fault analysis model, and comparing and analyzing whether the two results are the same or not, and analyzing reasons for abnormal data in combination with sensor fault detection and historical fault analysis results to obtain a fault analysis result. According to the scheme, when the sensor data is abnormal, reason analysis can be carried out, the output of a fault analysis result is not influenced, the accuracy of fault analysis is improved, and the safety of an energy storage system is ensured.
Owner:CHONGQING HITEN ENERGY CO LTD

Industrial equipment maintenance system for industrial internet data acquisition

The invention relates to the technical field of industrial equipment maintenance, in particular to an industrial equipment maintenance system for industrial internet data acquisition. The system comprises a fragmented storage database and a maintenance associated data calling module. According to the method, the associated industrial equipment is matched according to the real-time associated data through the fragmented storage database, the corresponding real-time associated data is divided, meanwhile, the influence degree of each associated data is calculated, the storage data and the storage period are planned according to the influence degrees, real-time data cleaning is performed, and normal data and abnormal data are divided to be stored in order. Normal storage of conventional data is guaranteed, real-time calling is facilitated, abnormal data can be stored in advance, when monitoring data calling needs to be carried out in the maintenance work process, the abnormal data can be preferentially supplied according to the storage priority, the abnormal reason analysis efficiency is improved, and the maintenance efficiency is improved. Meanwhile, the storage period of each piece of monitoring data and the storage of the database are reasonably planned according to the storage priority, and the storage state is improved.
Owner:XIAMEN LOTTE JINGBO INFORMATION TECHNOLOGY RESEARCH INSTITUTE CO LTD

Wind power blade crack diagnosis method and system based on knowledge graph large model enhancement

The invention relates to the technical field of wind power operation and maintenance, and discloses a wind power blade crack diagnosis method and system based on knowledge graph large model enhancement, and the method comprises the steps: S1, edge end image collection and crack semantic recognition: an edge end carries out the crack detection and semantic feature extraction of a collected wind power blade image sequence through an ECL-Net lightweight network, generating structured semantic information and transmitting the structured semantic information to a cloud; s2, cloud knowledge graph retrieval and semantic reasoning: the cloud performs semantic retrieval and causal reasoning on the structured semantic information through a KFR-Net knowledge graph reasoning network based on a pre-constructed wind power blade operation and maintenance knowledge graph, and outputs a knowledge retrieval result; and S3, multi-modal information is fused through an MMR-Cogntive multi-modal memory retrieval-cognitive generation network, and a structured maintenance report including crack detection summarization, cause analysis, maintenance measures and risk assessment is generated. The method has the advantage that intelligent closed-loop management of wind power blade cracks from detection to maintenance suggestions is realized.
Owner:SICHUAN UNIV

Database deadlock detection and analysis method and device, equipment and medium

The invention relates to the technical field of big data, and discloses a database deadlock detection and analysis method, which comprises the following steps of: loading a configuration file, extracting a monitoring interval parameter and a log level parameter, connecting a target database according to the configuration file, periodically acquiring state information of affairs and resources through a database interface, and storing the state information as a state snapshot; initializing a data structure of the resource waiting graph, adding transaction nodes, resource nodes, request edges and occupation edges based on the state snapshots, performing depth-first search on the resource waiting graph to detect whether a loop exists or not, judging whether transactions and resources related to the loop form deadlocks or not, and recording related information; a report of a deadlock cause analysis and solution is generated based on the transaction state, the resource state, the loop information, the occupancy relationship, and the waiting relationship. According to the method, the state snapshot is constructed by periodically collecting the state information of the affairs and the resources, and the deadlock problem is quickly positioned and accurately analyzed in combination with initialization and dynamic updating of the resource waiting graph.
Owner:JINZHUAN INFORMATION TECHNOLOGY CO LTD

Multiple agent automatic root cause analysis

Multiple agent root cause analysis techniques are described. In an implementation, a processor performs operations to troubleshoot performance of a system operation by a plurality of domains (e.g., of a distributed system). The processor executes a system artificial intelligence (AI) agent to determine which domains of the plurality of domains include domain functions in support of the system operation, and to generate, using machine learning, queries to the determined domains based on the system operation. Domain responses are received from domain AI agents associated with the determined domains responsive to the queries and generated based on domain data associated with respective domains. A system response is generated by the system AI agent using machine learning based on the domain responses.
Owner:EBAY INC

Hydropower station on-duty emergency processing method, system and equipment based on knowledge graph, and medium

The invention discloses a hydropower station on-duty emergency processing method, system, equipment and medium based on a knowledge graph, and belongs to the technical field of hydropower station emergency processing, and the method comprises the steps: collecting the operation parameter data and historical fault information of a hydropower station, and carrying out the digital processing; based on a natural language processing and artificial intelligence training technology, constructing a knowledge graph including fault types, cause analysis and emergency disposal measures; establishing an intelligent fault diagnosis algorithm based on a knowledge graph, and carrying out fault identification and positioning on the operation data of the hydropower station; performing classification and priority ranking on the faults according to the identified fault result, and matching a corresponding processing flow; and according to the fault classification information, an emergency plan is started, a control instruction is executed to complete emergency processing operation, and recording is carried out. According to the invention, real-time sensing of the operation state of the hydropower station, accurate fault identification and priority classification are realized, and the response speed and processing accuracy of the hydropower station to emergencies are effectively improved.
Owner:GUIZHOU WUJIANG HYDROPOWER DEV