System and method for automatically drawing primary diagram of transformer substation monitoring system

Abstract

The invention relates to an automatic drawing system and method for a primary graph of a substation monitoring system, and the system comprises an input module, an intelligent recognition module, an automatic generation module and an automatic data binding module which are connected in sequence, and also comprises a rule engine module connected with the intelligent recognition module. The intelligent identification module analyzes the project design drawing obtained by the input module, extracts main information required by the primary drawing, and performs rule coincidence check according to the rule learned by the rule engine module; if the rule conformance check is passed, the automatic generation module automatically generates a corresponding primary graph according to the rule for generating the primary graph in the rule engine module; and the automatic data binding module is used for carrying out automatic association binding on each loop and equipment dynamic data in the automatically generated primary graph. Compared with the prior art, the method has the advantages of realizing automatic generation of the primary graph, improving the drawing efficiency and accuracy and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of primary diagrams of a substation monitoring system, and in particular to an automatic drawing system and method for a primary diagram of a substation monitoring system. Background Art

[0002] With the rapid development of my country's economy, construction is booming across various sectors, including industry, transportation, petrochemicals, electronics, commerce, office, education, and healthcare. This has led to a significant increase in the number of new user substations and distribution stations, and a sharp increase in the number of incoming and outgoing circuits in 35kV and below substations and distribution systems. This has been particularly pronounced for 400V outgoing circuits, which have reached approximately 3,000. The original monitoring system's primary diagrams were manually drawn circuit by circuit, a laborious task. Dynamic data for telesignaling, telemetry, and remote control, such as telemetering, must be manually bound circuit by circuit, a labor-intensive, inefficient, tedious, and error-prone process.

[0003] After searching, Chinese invention patent application publication number CN110046391A discloses a method for automatically generating substation wiring diagrams based on a monitoring information table. This method utilizes the substation's monitoring information table to automatically generate a substation primary diagram. Simultaneously, data model information corresponding to the monitoring information is established in the dispatching master station database. This established data model information is then mapped to the generated substation primary diagram, enabling automatic maintenance of the substation diagram, model, and data, avoiding errors caused by manually linking large amounts of data. If the match fails, the sample size is increased to rebuild the graphic template feature library. This existing patent application suffers from the problem of not utilizing existing design drawings, requiring station configuration information to be collated, and not supporting automatic identification or data association verification.

[0004] How to realize the automatic drawing of the primary diagram of the user-side substation monitoring system has become a technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a system and method for automatically drawing a primary diagram of a substation monitoring system.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, there is provided a system for automatically drawing a primary diagram of a substation monitoring system, the system comprising an input module, an intelligent recognition module, an automatic generation module, and an automatic data binding module connected in sequence, and further comprising a rule engine module connected to the intelligent recognition module;

[0008] The intelligent recognition module parses the drawings obtained by the input module, extracts the main information required for the primary drawing, and performs a rule compliance check based on the rules learned by the rule engine module; if the rule compliance check is passed, the automatic generation module automatically generates the corresponding primary drawing in accordance with the rules for generating the primary drawing in the rule engine module; the automatic data binding module automatically associates and binds the dynamic data of each circuit and device in the automatically generated primary drawing.

[0009] Preferably, the rule engine module learns the rules for automatically generating primary drawings by comparing the historical primary drawings of the power distribution monitoring system with the relevant information of the project design primary drawings, wherein the rules include establishing primary wiring rules and schemes, a graphic symbol library of electrical components, and loop identification, and the loop identification includes a loop number, loop purpose and name library.

[0010] More preferably, the rule engine module receives a feedback signal from the intelligent recognition module to adjust the rules for generating a primary graph.

[0011] Preferably, the main information required for the primary diagram includes electrical components, circuit numbers, circuit purposes, graphic element layout positions and connection relationships.

[0012] Preferably, the rule compliance check is specifically as follows: the intelligent identification module combines the plant configuration information and protection measurement and control loop configuration information obtained from the monitoring system database to perform rule compliance check, realize multi-modal primary diagram data matching and fusion, and complete the identification and inspection of primary diagram electrical components, loop numbers, loop names, layout positions, and connection relationships.

[0013] Preferably, the automatic generation module adopts a strategy of adaptive screen length and width, equal spacing of axes, and symmetrical layout priority. It uses the output information of the intelligent recognition module and follows the rules of the primary diagram in the rule engine module to automatically generate the corresponding primary diagram. The automatically generated primary diagram includes grouping according to different voltage levels, equal spacing, horizontal symmetry, symmetrical layout according to main components, line colors specified by voltage level generation standards, and the same axis as a reference for the same circuit. The vector graphics elements in the electrical graphic symbol rule library are redrawn, and the vertical and horizontal dimensions are adjusted to adapt to the monitoring screen.

[0014] Preferably, the automatic binding includes binding status signals, operating parameters, and accident alarm signals of different circuits in the primary diagram, and binding remote control data of devices capable of remote control.

[0015] Preferably, the system further comprises an automatic verification module connected to the automatic data binding module, for automatically verifying the dynamic data of the devices associated and bound by the automatic data binding module.

[0016] More preferably, the system further comprises an automatic output module connected to the automatic verification module, for generating SVG and G format files respectively for the automatically generated primary diagram and the primary diagram after the dynamic data association and binding of the equipment is completed.

[0017] According to another aspect of the present invention, a method for automatically drawing a primary diagram of a substation monitoring system is provided, the method comprising:

[0018] S1, read the design drawings of the new project;

[0019] S2, determine the design drawing format, and intelligently identify primary wiring, electrical components and text according to the corresponding format specifications, and execute S3;

[0020] S3, based on the primary wiring rules and schemes in the rule engine and the electrical component graphic symbols required by the monitoring system, performs a rule compliance check on the content identified in S2. If the compliance check is met, a primary diagram is automatically generated and S4 is executed; otherwise, the rule engine is updated;

[0021] S4, automatically bind dynamic data. If the binding is successful, execute S5; if the binding fails, execute S6;

[0022] S5, perform automatic verification process, if the verification is successful, then end; otherwise, execute S6;

[0023] S6: For abnormal events of binding failure, manually adjust the binding relationship and database, and return to S4.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1) The present invention intelligently extracts the main information required for the primary diagram from the project design drawings. The rule engine module learns the rules for generating the primary diagram, laying the foundation for the automatic generation of the primary diagram. A rule compliance check is performed according to the rules. If the rule compliance check passes, the corresponding primary diagram is automatically generated in accordance with the rules of the primary diagram. The dynamic data of each loop and device in the primary diagram are automatically associated and bound, thereby realizing the automatic generation of the primary diagram and improving the drawing efficiency of the primary diagram.

[0026] 2) The present invention also designs an automatic verification module to ensure the standardization and correctness of the primary graph and the associated results through automatic verification, thereby improving the accuracy of the primary graph.

[0027] 3) The present invention also designs an automatic output module, which generates SVG and G format files for the automatically generated primary graph and the primary graph after dynamic data association and binding, and saves them to the monitoring system to facilitate real-time monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1It is a structural diagram of the automatic drawing system in the present invention;

[0029] Figure 2 Schematic diagram of the process of the automatic drawing method of the present invention. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] The purpose of the present invention is to improve the efficiency of primary map drawing of the user-side monitoring system, improve the accuracy of dynamic data association, significantly reduce the manual input of map drawing work, accelerate the progress of project construction, and increase project benefits.

[0032] Example 1

[0033] This embodiment relates to an automatic drawing system for a primary diagram of a user-side substation monitoring system, such as Figure 1 , including an input module 1, a rule engine module 7, an intelligent recognition module 2, an automatic generation module 3, an automatic data binding module 4, an automatic verification module 5, and an automatic output module 6.

[0034] Input Module 1 obtains construction drawings from the design firm or user, such as primary wiring diagrams for the power distribution system or primary drawings for high and low voltage cabinets. It then parses and displays these drawings, eliminating the need for manual redrawing of primary drawings, which significantly reduces the workload and time required. This stage displays the original drawings and text, providing preliminary editing, modification, and deletion functions to allow engineers to trim unnecessary information.

[0035] Rule engine module 7, through the monitoring screen of the user side power distribution monitoring system historical drawing once Figure 1 Compare the secondary topology, electrical elements and symbols, text, circuit numbers, and names with the corresponding project design primary drawings to obtain the following information, laying the foundation for automatically generating primary drawings:

[0036] 1) Establish primary wiring rules and plans: Establish typical primary wiring rules and plans for indoor and outdoor power supply and distribution systems at different voltage levels of 35kV and below on the user side;

[0037] 2) Establish a graphic symbol library for high and low voltage electrical components: electrical components include two-winding transformers, three-winding transformers, grounding transformers, disconnectors, grounding switches, fixed circuit breakers, trolley-type circuit breakers, isolation trolleys, capacitors, voltage transformers, current transformers, detuning devices, lightning arresters, reactors, cable heads, etc.;

[0038] 3) Establish loop identification: corresponding loop number, loop purpose and name library.

[0039] The rule engine module 7 receives the feedback signal from the intelligent recognition module 2 to expand and enrich the rule engine module, making subsequent automatic generation simpler and more efficient.

[0040] Intelligent recognition module 2 reads and parses primary drawings in DXF format according to DXF format specifications for blocks, tables, primitives, objects, and other sections, extracting key information required to generate the primary drawings, such as electrical components, circuit numbers, circuit purposes, primitive layout positions, and connection relationships. It also performs rule compliance checks based on the primary wiring rules and schemes in rule engine module 7 and the electrical component graphic symbols required by the monitoring system.

[0041] There are two types of PDF formats for primary drawings: PDF vector format and PDF pure image format.

[0042] For primary drawings in PDF vector format, the wiring diagram, electrical component graphic symbols, circuit numbers, circuit uses and other texts are directly identified according to the PDF vector file format specifications; for primary drawings in PDF pure graphic format, improved lightweight character optical recognition and improved computational vision recognition graphic element features are used to extract the information of each graphic element in the drawing, its layout position, connection relationship, text, etc., and the rule engine is used to perform rule compliance check.

[0043] The above identification is also combined with the plant configuration information, protection measurement and control circuit configuration information, etc. obtained from the monitoring system database to perform rule compliance checks, realize multi-modal primary diagram data matching and fusion, and complete the identification, extraction and caching of primary diagrams, electrical components, circuit numbers and names, layout positions, and connection relationships.

[0044] The automatic generation module 3 uses the output information of the intelligent recognition module 2 and follows the rules of the rule engine module 7 regarding the wiring connection rules, wiring schemes, electrical component graphics and symbols, circuit numbers, etc. for mapping and transformation. It adopts strategies such as adaptive screen length and width, equal spacing of axes, and symmetrical layout priority to automatically generate the corresponding primary diagram, including grouping according to different voltage levels, equal spacing, and horizontal symmetry; symmetrical layout according to major components such as the main transformer, high and low voltage input and output lines, line colors specified according to the voltage level generation standard, and the same axis as a reference for the same circuit. The original vector graphics elements in the electrical graphic symbol rule library are redrawn and the vertical and horizontal sizes are adjusted to adapt to the monitoring screen.

[0045] The automatic data binding module 4 automatically associates the dynamic data of each circuit and equipment. According to the compliance result of the intelligent identification module 2, it binds the status signals of different circuits, binds the operating parameters, and binds the accident alarm signals according to the double-checking method of the circuit number and name; and binds the remote control data of the equipment with remote control operation.

[0046] The automatic output module 6 includes a primary image SVG format generation submodule 61 and a primary image G format generation submodule 62 .

[0047] The primary graph SVG format generation submodule generates SVG format files for the automatically generated primary graph and the primary graph that completes dynamic data association and binding, and saves them to the graph directory of the monitoring system program. The operating personnel can directly view the corresponding primary graph monitoring screen and monitor the real-time operating status of the corresponding station.

[0048] The primary diagram G format generation submodule generates G format files for both automatically generated primary diagrams and those that have undergone dynamic data association and binding, meeting the requirements for exchanging graphic files with the dispatching system. G format files are implemented in accordance with the DL / T 1230 Power System Graphical Description Specification.

[0049] To ensure the correctness of the dynamic data associated with the dynamic data binding module 4, especially to avoid prohibited accidents such as mis-opening or mis-closing of circuit breakers and to improve debugging efficiency, the automatic drawing system and monitoring system integrate automatic testing and inspection functions. The automatic verification module 5 sends a dynamic data automatic verification request to the acquisition and processing module of the monitoring system. The acquisition and processing module executes a simulated dynamic data mode and completes the generation of a diagram for each station, busbar, or unit, loop by loop according to predetermined rules. The status and alarm signal binding of circuit breakers, handcarts, disconnectors, earth switches, remote local, over-temperature alarms, high-temperature trips, etc. are checked for correct alignment. The binding of operating parameters such as voltage, current, and power are also checked for correctness. This prepares for on-site debugging, effectively reducing the debugging workload, lowering the debugging intensity, and improving debugging efficiency.

[0050] Example 2

[0051] This embodiment relates to a method for automatically drawing a primary diagram of a user-side substation monitoring system. Figure 2 , the method comprises the following steps:

[0052] S1, read the design drawings of the new project;

[0053] S2, determine the format of the design drawing. If it is a DXF format file, extract the information such as graphics elements, text and layout positions according to the DXF format specifications, intelligently identify the primary wiring, electrical components and text, and execute S3; if it is a PDF vector format file, directly identify the wiring diagram, electrical component graphic symbols, circuit numbers and circuit purposes and other text according to the PDF vector file format specifications, and execute S3; for the primary drawing in the PDF pure image format, use improved lightweight character optical recognition and improved computational visual recognition of graphics element features to extract the graphics elements and layout positions, connection relationships, text and other information in the drawing, and execute S3; otherwise, return to S1;

[0054] S3, based on the primary wiring rules and schemes in the rule engine and the electrical component graphic symbols required by the monitoring system, performs a compliance check on the primary wiring, electrical components, and text identified in S2. If the compliance check is met, a primary diagram is automatically generated and S4 is executed; otherwise, the rule engine is updated;

[0055] S4, automatically bind dynamic data. If the binding is successful, execute S5; if the binding fails, execute S6;

[0056] S5, perform automatic verification process, if the verification is successful, then end; otherwise, execute S6;

[0057] S6: For abnormal events of binding failure, manually adjust the binding relationship and database, and return to S4.

[0058] Example 3

[0059] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0060] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0061] The processing unit performs the various methods and processes described above. For example, in some embodiments, the method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to execute the method in any other appropriate manner (e.g., by means of firmware).

[0062] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0063] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0064] In the context of the present invention, machine-readable medium can be a tangible medium that can contain or store a program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0065] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. An automatic drawing system for a primary diagram of a substation monitoring system, characterized in that: The system comprises an input module (1), an intelligent recognition module (2), an automatic generation module (3) and an automatic data binding module (4) connected in sequence, and also comprises a rule engine module (7) connected to the intelligent recognition module (2); The intelligent recognition module (2) analyzes the project design drawings obtained by the input module (1), extracts the main information required for the primary diagram, and performs a rule compliance check according to the rules learned by the rule engine module (7); if the rule compliance check is passed, the automatic generation module (3) automatically generates a corresponding primary diagram according to the rules for generating the primary diagram in the rule engine module (7); and the automatic data binding module (4) automatically associates and binds the dynamic data of each circuit and device in the automatically generated primary diagram.

2. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1 is characterized in that: The rule engine module (7) learns the rules for automatically generating the primary diagram by comparing the historical primary diagram of the power distribution monitoring system with the relevant information of the project design primary diagram, wherein the rules include establishing the primary wiring rules and schemes, the graphic symbol library of the electrical components and the circuit identification, and the circuit identification includes the circuit number, circuit purpose and name library.

3. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 2 is characterized in that: The rule engine module (7) receives the feedback signal from the intelligent recognition module (2) to adjust the rules for generating a primary graph.

4. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1 is characterized in that: The main information required for the primary diagram includes electrical components, circuit numbers, circuit purposes, element layout positions and connection relationships.

5. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1 is characterized in that: The rule compliance check is specifically as follows: the intelligent identification module (2) combines the plant configuration information and protection measurement and control circuit configuration information obtained from the monitoring system database to perform rule compliance check, realize multi-modal primary diagram data matching and fusion, and complete the identification and inspection of primary diagram electrical components, circuit numbers, circuit names, layout positions, and connection relationships.

6. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1, characterized in that: The automatic generation module (3) adopts a strategy of adaptive screen length and width, equal spacing of axes, and symmetrical layout priority, uses the output information of the intelligent recognition module (2), follows the rules of the primary diagram in the rule engine module (7), and automatically generates a corresponding primary diagram. The automatically generated primary diagram includes grouping according to different voltage levels, uniform spacing, horizontal symmetry, symmetrical layout according to main components, line colors specified according to voltage level generation standards, and the same axis as a reference for the same circuit. The vector graphics elements in the electrical graphic element symbol rule library are redrawn, and the vertical and horizontal dimensions are adjusted to adapt to the monitoring screen.

7. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1 is characterized in that: The automatic binding includes binding status signals, operating parameters, and accident alarm signals of different circuits in the primary diagram, and binding remote control data of equipment capable of remote control.

8. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 1, characterized in that: The system further comprises an automatic verification module (5) connected to the automatic data binding module (4) and used for automatically verifying the dynamic data of the device associated and bound by the automatic data binding module (4).

9. The automatic drawing system of the primary diagram of the substation monitoring system according to claim 8, characterized in that: The system also includes an automatic output module (6) connected to the automatic verification module (5), which is used to generate SVG and G format files for the automatically generated primary diagram and the primary diagram after the dynamic data association and binding of the equipment is completed.

10. A method for automatically drawing a primary diagram of a substation monitoring system using the system according to any one of claims 1 to 9, characterized in that: The method comprises: S1, read the design drawings of the new project; S2, determine the format of the design drawing, and intelligently identify the primary wiring, electrical components and text according to the corresponding format specifications, and execute S3; S3, based on the primary wiring rules and schemes in the rule engine and the electrical component graphic symbols required by the monitoring system, performs a rule compliance check on the content identified in S2. If the compliance check is met, a primary diagram is automatically generated and S4 is executed; otherwise, the rule engine is updated; S4, automatically bind dynamic data. If the binding is successful, execute S5; if the binding fails, execute S6; S5, perform automatic verification process, if the verification is successful, then end; otherwise, execute S6; S6: For abnormal events of binding failure, manually adjust the binding relationship and database, and return to S4.

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