161 results about "Wiring diagram" patented technology

The invention discloses a multi-modal depth perception and adaptive segmentation full-spectrum primitive intelligent identification method, system and device for a primary main wiring diagram of a plant station, and a medium, and belongs to the technical field of intelligent identification of engineering drawings of power system plant stations, and the method comprises the steps: fusing the dual-source data of a vector diagram and a grating diagram, and constructing a standard primitive library; secondly, primitive detection is realized by adopting a recognition and segmentation collaborative multi-stage network, and the contour precision is improved through model distillation; secondly, iteratively optimizing the recognition capability of the model on the difficult sample by using an active learning mechanism; and finally, finishing primitive classification and result optimization in combination with deep metric learning and electrical topology constraints. According to the invention, through multi-modal data fusion and multi-scale feature adaptive fusion, the recognition capability of a small target and a fine primitive is improved; by means of a double-branch heterogeneous architecture and a structural distillation mechanism, pixel-level high-precision edge segmentation is realized, and the identification problem of dense adhesion primitives is effectively solved.

A converter station AC filter group circuit breaker abnormal arcing modeling analysis method comprises the following steps: firstly, carrying out time mark alignment, amplitude calibration and filtering de-noising on wave recording signals such as AC bus voltage and filter branch current to obtain high-quality input data; then, combining a primary wiring diagram, enabling an alternating current system to be equivalent to an ideal power supply and series impedance, enabling circuit breaker arcing to be equivalent to arc resistance changing along with time, and constructing an equivalent circuit model comprising the power supply, the impedance, a capacitor, an electric reactor and dynamic arc resistance; establishing a state space equation according to a voltage and current constraint relation, and performing time domain solution by adopting a two-step two-order or three-order diagonal implicit Runge-Kutta method to obtain voltage and current responses of the whole process of the fault; on this basis, the arc resistance change is inversed according to the ratio of arc voltage to current, the current zero passage is identified through the resistance symbol change at adjacent moments, and the zero passage section is smoothed; and finally, the inversion result is verified again by means of the simplified equivalent model.

The invention relates to the technical field of graph generation, in particular to a self-adaptive topological plant station wiring diagram generation method, which comprises the following steps of: acquiring a wiring diagram image, extracting edge features, identifying an image type, positioning a line structure boundary, identifying text elements, classifying corresponding graph areas, and constructing a connection path to generate a topological wiring diagram. According to the method, clear recognition of the structure contour is realized through extraction of the edge features of the line structure of the image, the spatial position information of the graphic area is acquired in combination with a multi-scale primitive positioning technology, and then identity extraction and classification judgment are performed on the text elements contained in the image in a character recognition mode. And establishing a corresponding relationship between the equipment identifier and the graph region, constructing a complete path by combining the graph arrangement direction and the starting and ending coordinates of the connecting line, and determining a connection sequence and a relative position relationship between the equipment. Coordination and unification of spatial arrangement are realized through application of an attraction and repulsive force model between nodes, and clearness and coherence of a wiring diagram in the aspect of topological structure expression are improved.

The invention discloses a wiring diagram recognition method and device based on deep learning and electronic equipment, and the method comprises the steps: carrying out the correction and mask processing of an initial wiring diagram, obtaining a first wiring diagram, and fusing mask parameters and mask skeleton parameters; extracting circuit elements in the first wiring diagram based on fusion mask parameters and mask skeleton parameters, and classifying the circuit elements to obtain a first element set of the first wiring diagram; performing port connection line pairing processing and topological optimization processing on the first element set, and determining a second element set and a corresponding second wiring diagram; according to the second element set, performing multi-dimensional verification and global topological structuring processing on the second wiring diagram to obtain a topological graph data model; and determining a JSON file, a visual topological graph, a VF2 check report and a Neo4j graph database of the wiring diagram according to the structured data in the topological graph data model. According to the invention, a more accurate wiring diagram can be identified.

The invention provides a wiring diagram identification method based on a neural network and computer vision processing, and relates to the technical field of graph model identification, and the method comprises the following steps: inputting a power grid plant station wiring diagram, the wiring diagram format specifically comprising BMP, JPG and PNG; uniformly scaling the wiring diagram to a uniform pixel resolution, processing the power grid plant station wiring diagram, scaling, denoising, detecting circuit breakers and other primitives, correcting the direction, identifying characters, complementing to generate a structured record, reconstructing a wiring topology, associating the primitives, the characters and the topology through multi-modal matching, and finally obtaining the power grid plant station wiring diagram. And finally, a CIM file conforming to IEC61970 is mapped, automatic extraction and standardized conversion of wiring diagram information are achieved, the rotating frame detection and direction restoration technology is adopted, primitives rotating at any angle are accurately recognized, the direction of the primitives is unified, the problem of angle loss of traditional horizontal frame detection is effectively solved, and the detection efficiency is improved. The omission ratio and the repetition rate of dense or multi-scale primitives are reduced, and the robustness of primitive detection is improved.

The invention discloses a non-intrusive power grid wiring diagram switch state identification method and system based on deep learning, a processor and a medium. According to the method, electrical data and switching state data of a power grid are collected and marked, a '1D-CNN + BiLSTM + Transform 'hybrid network model is constructed after preprocessing and feature extraction, and the switching state of the whole network is recognized after training. Power grid equipment does not need to be transformed, an existing mutual inductor is used for collecting data, local mutation, time sequence dependence and global association of electrical data are effectively processed through multi-dimensional feature extraction and a hybrid network model, the accuracy and robustness of on-off state recognition are improved, and the method can be applied to power grid on-off state monitoring in real time. And reliable support is provided for intelligent power grid operation.

The invention relates to an automatic mapping method and system of a standard graph applied to power grid equipment homologous maintenance, and relates to the technical field of power grid mapping, and the method comprises the steps: extracting equipment ledger data, geographic coordinate data and topological connection relation data based on a preset power grid management system, and constructing a power grid equipment knowledge graph; layering the power grid equipment based on the voltage levels in the knowledge graph, and performing initial layout optimization on each layer of equipment by adopting a reinforcement learning model to generate a layered layout result; dynamically calculating the contact positions of the T-shaped wiring and the n-shaped wiring to generate contact coordinates; and generating a power grid logic view and a geographical wiring diagram based on superposition of the contact coordinates and the hierarchical layout result. By automatically generating the power grid logic view and the geographical wiring diagram, the dependency on manpower is greatly reduced, errors caused by personnel in drawing are reduced, and the drawing efficiency is remarkably improved.

The invention relates to the technical field of disconnecting link maintenance and transformation, in particular to an isolation disconnecting link updating and transformation method. The method comprises the following steps: S1, performing inspection and quantitative analysis, performing equipment evaluation and problem diagnosis, and identifying operation problems and function deficiency; s2, performing model selection and material optimization, and setting a standard isolation switch and an electric operation assembly; s3, defining a transformation range, dividing transformation units based on the main wiring diagram, and covering the isolation disconnecting link and the grounding disconnecting link; s4, implementing a safety locking structure, adding an electrified locking and five-prevention system, and accessing whole plant management to prevent misoperation; and S5, accessing a monitoring system, and connecting an LCU screen and a computer monitoring system to realize remote centralized control. The contact resistance and temperature rise of the contact reach the standard, ablation is completely eradicated, the operating force and time are greatly reduced, jamming is returned to zero, the five-prevention locking success rate is extremely high, the misoperation drill can reach the zero penetration level, and the on-site actual effects of mechanical zero jamming, five-prevention zero penetration, remote control zero delay and old and waste utilization are achieved.

The invention relates to a method and a system for generating a nuclear island relay protection system graphic structure. The method comprises the following steps: acquiring basic graphic layer data of an initial secondary wiring diagram, and establishing a unique identifier for each graphic element in the basic graphic layer data; and receiving a manual modification operation on the basic graphic layer data and recording the manual modification operation as a manual modification operation record. And when it is detected that the design input data is changed, new basic graph layer data is regenerated according to the changed design input data. Manual modification operation records are read, and for each manual modification operation record, the corresponding graphic element is searched in the new basic graphic layer data according to the unique identifier associated with the record. If the corresponding graphic element is found, the manual modification operation in the old basic graphic layer data is applied to the corresponding graphic element in the new basic graphic layer data according to the type and the parameter stored in the manual modification operation record, and a new-version secondary wiring diagram containing manual modification content is generated.

The application discloses an interactive adaptive generation method and device for a substation main wiring diagram, and belongs to the technical field of intelligent substations. The method comprises the following steps: loading a pre-constructed substation typical design framework template and a bus branch interval template; instantiating the substation typical design framework template and the bus branch interval template to generate a typical design template instance and a branch interval template instance; respectively performing graph module association on the typical design template instance and the branch interval template instance to generate the graph module associated typical design template instance and the graph module associated branch interval template instance; expanding a arrangeable interval according to the graph module associated typical design template instance and the number and form of the branch interval; and based on an interactive diagramming configuration mechanism, arranging the graph module associated branch interval template instance to the arrangeable interval to generate a substation main wiring diagram. The application can solve the problems of non-standard, low efficiency, easy-to-make errors in graph module association and difficult-to-control diagramming effect in automatic diagramming.

The application discloses a kind of test acceptance wiring scheme generation method, device, electronic equipment and storage medium.The method includes obtaining the description file of the secondary system to be accepted, including primary wiring diagram and secondary equipment description diagram;First type representation vector is obtained by graph information analysis to primary wiring diagram, and second type representation vector is obtained by graph information analysis to secondary equipment description diagram;With first type representation vector as the feature vector of simulation query, and with second type representation vector as the feature vector of simulation key, the query analysis based on local neighborhood optimization is carried out to simulation query feature vector and simulation key feature vector to capture the deployment relationship of primary equipment and secondary equipment and obtain wiring scheme semantic representation;Test acceptance wiring scheme diagram of the secondary system to be accepted is generated based on wiring scheme semantic representation.The technical scheme of the application ensures that the generated wiring scheme has comprehensiveness and reliability.

The application provides a power equipment wiring diagram data display method, device and storage medium. The method comprises the following steps: selecting a current data updating mode from a plurality of preset data updating modes; when a trigger condition required by the current data updating mode is met, updating an initialization xml file according to measurement point data, so as to display a graph element corresponding to the measurement point data in a browser. According to the embodiment of the application, when the trigger condition required by the current data updating mode is met, the initialization xml file can be updated according to the measurement point data, so as to display the graph element of different shapes and colors corresponding to the measurement point data in the browser. In addition, the graph element type can be customized according to requirements, and the display mode is flexible.

The invention provides a transformer substation wiring diagram automatic identification method and system, and the method comprises the steps: obtaining the canvas size and primitive coordinate information of a transformer substation wiring diagram in a transformer substation wiring diagram G file, obtaining the canvas size of a transformer substation wiring diagram screenshot, and calculating the size conversion coefficient of the transformer substation wiring diagram and the screenshot based on the canvas size of the transformer substation wiring diagram and the screenshot in the G file; calculating the coordinate information of each primitive in the screenshot based on the conversion coefficient and the primitive coordinate information of the G file transformer substation wiring diagram, marking each primitive in the screenshot, and identifying the information content of each primitive of the transformer substation wiring diagram in the screenshot; and carrying out variable quantity calculation on the current marked screenshot and the marked screenshot at the previous moment to obtain a change value of the primitive in the operation process of the transformer substation. The method supports display of images with various resolutions and various window images, meets the requirements of a mainstream dispatching automation master station system, and is wide in adaptability. In the whole recognition process, only the conversion rate is calculated for the first time, massive calculation is not needed, and the real-time monitoring requirement is met.

The invention discloses an automatic main wiring diagram forming method and system based on dynamic layout and template fusion. Carrying out regional division according to the voltage class of the transformer substation, and independently setting a main transformer region; optimizing region merging and splitting by adopting a genetic algorithm, setting a merging and splitting threshold value by calculating a region occupancy rate, and dynamically adjusting a region boundary to adapt to scenes such as transformer substation reconstruction and extension, interval increase or deletion and the like; and further aiming at the problems of large calculated amount of equipment layout in the interval, different voltage intervals of the same station and non-uniform styles of direct intervals of different stations, a standardized interval template matching method is adopted, the equipment primitive size, interval and alignment mode are set, the primitive position is automatically adjusted, the connecting line crossing condition is optimized, and finally the transformer substation main wiring diagram conforming to the specification is generated. The layout is dynamically adjusted based on the set threshold value, the overall space compactness is improved, the invalid blank is reduced, and the equipment arrangement is optimized in combination with template matching, so that the formed graph is more regular and conforms to the industrial standard.