A substation graph paper intelligent checking management system based on graph data association

Abstract

This invention relates to the field of substation operation and maintenance technology, and discloses an intelligent verification and management system for substation drawings based on graphic data association. The system quantifies and defines the linkage relationship between the base map and sub-maps through a multi-dimensional weighted association strength model. Combined with dual-condition trigger judgment and incremental update algorithm, it realizes one-time editing of the base map and batch automatic synchronous updating of associated sub-maps. It performs closed-loop error correction through consistency verification formula and locks the unique effective version with the maximum version number. With cross-format bidirectional compatibility conversion and PMS3.0 data integration, this invention has the advantages of professional drawing and management functions in the power industry, automatic graphic linkage update, one-click association of equipment information, and unified collection and output.

Description

Technical Field

[0001] This invention relates to the field of substation operation and maintenance technology, specifically to an intelligent verification and management system for substation drawings based on graphical data association. Background Technology

[0002] The power industry's substation operation and maintenance professionals use a unified diagram management model to visualize and manage substation electrical wiring, equipment layout, low-voltage AC / DC differentials, auxiliary facility layout, small animal control (including bird control and deflection) facilities, flood control / fire prevention measures, GIS air barriers, etc. This provides maintenance personnel with a fixed-position reference for daily management, facilitating equipment maintenance work. Currently, the basic graphic data for Tianjin power substations is drawn and edited using Visio office software. This results in individualized graphics, limited interface, and with the increase in substation expansions and engineering projects, the workload for modifying parts involving changes in overall equipment facilities and basic configurations is significant. This adds more tediousness than convenience to maintenance personnel. Discrepancies in the accuracy and consistency with the site conditions can lead maintenance personnel to doubt the practicality of the unified diagram model, sometimes requiring repeated verification before use. Otherwise, incorrect descriptions or graphics may mislead on-site operations. Therefore, a new type of platform is needed to manage a set of drawings for substations as a whole, directly linking equipment ledgers, records, basic data, etc. from the graphics, unifying the output, and building a new model for integrated drawing and data management for substation operation and maintenance. Summary of the Invention

[0003] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an intelligent verification and management system for substation drawings based on graphic data association. It possesses advantages such as professional drawing and management functions for the power industry, automatic graphic linkage updates, one-click association of equipment information, and a unified data aggregation point. This solves the problems of existing general-purpose drawing software lacking power semantic recognition and dedicated function modules, making it difficult to meet the needs of unified management of various types of drawings in substations; the lack of a linkage mechanism for drawing modifications, resulting in a large workload for manual revisions during renovation and expansion, and the potential for misinterpretation due to version fragmentation; and the disconnect between drawings and information such as equipment ledgers, records, and basic parameters, making it impossible to directly associate multi-dimensional data from graphics and achieve a unified information output.

[0004] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a substation drawing intelligent verification and management system based on graphic data association, comprising a graphic input and format standardization module, a base map-sub-map association modeling module, a linkage trigger intelligent judgment module, a base map change-driven sub-map linkage update module, a platform-wide graphic consistency verification module, a drawing modification workload quantitative evaluation module, a graphic version unique control module, a graphic cross-format compatibility conversion module, a cloud storage and version management module, a collaboration and permission management module, a knowledge base construction and iterative update module, and a front-end application management module; The graphic data entry and format standardization module is responsible for importing all graphic data of substation operation and maintenance into the system in batches or one by one, unifying graphic names and formats according to established naming rules, forming a standardized graphic data library, assigning a unique initial version number to each file, recording modification history, and establishing a graphic directory that supports keyword and graphic number retrieval for use by the entire platform. After the graphics are entered into the database, the base map-sub-graph association modeling module defines basic and strongly related graphics as base maps based on the manual configuration of the operation and maintenance personnel / system-assisted identification, clarifies their identity type, and delineates the scope and detailed list of all sub-graphs that have an extension or borrowing relationship with the base map. The linkage triggering intelligent judgment module intelligently identifies whether the linkage mechanism is activated after the base map is edited and before the sub-map is actually updated. It determines whether there is a valid graphic change in the base map and whether the correlation strength between the sub-map and the base map meets the standard by setting two conditions, and finally accurately outputs the trigger signal. The base map change-driven sub-map linkage update module is activated after the triggering conditions are met. It is used to set up the function of synchronous linkage modification after finalizing the information of all sub-maps related to the base map, so that any change in the base map can be linked to all related sub-maps. The platform-wide graphic consistency verification module is activated after the linkage update is completed. It is used to automatically verify the modified graphics of the entire site. By calculating the average graphic deviation between the base map and all related sub-maps, it identifies and modifies graphics that have been omitted or conflict with data. After the linkage update and consistency verification are completed, the drawing modification workload quantitative evaluation module constructs a quantitative evaluation model for the reduction rate of drawing modification workload based on the implementation of the automatic linkage modification function. This model is used by the software platform backend to automatically count the amount of modified work and evaluate and analyze the effect of technology empowerment. The unique version control module for graphics runs through the entire process of graphics entry, editing and modification and linkage update. It automatically collects all historical iteration versions of the same drawing and locks the unique and valid latest version through the maximum version number filtering algorithm. The cross-format compatibility conversion module performs bidirectional lossless compatibility conversion between Visio and AutoCAD graphics of different formats during the graphic import and subsequent retrieval processes. The cloud storage and version management module is responsible for uniformly storing all substation graphic files, assigning a unique version number to each file, recording modification history, and supporting quick retrieval by keywords and graphic number. The collaboration and permission management module is based on role-based access control and supports multi-user distributed concurrent operations. The knowledge base construction and iterative update module gathers a set of initial diagram base information for all substations and adds it to the application module knowledge base. This serves as the graphical management and storage medium for substations and is continuously iterated and updated in conjunction with the subsequent development and changes of substations to ensure the real-time nature of the data. The front-end application management module is used to provide operators with daily operation and management functions for retrieving, editing, and attaching graphics.

[0005] Preferably, the base-subgraph association modeling module constructs a multi-dimensional weighted association strength quantification model between the base graph and the subgraph, and the association strength calculation formula between base graph i and subgraph j is as follows: In the formula, Let be the combined correlation strength between the i-th base image and the j-th subimage. Spatial overlap rate represents the percentage of overlap between the geographic coordinates and the drawn area of ​​base map i and submap j. The equipment sharing rate represents the proportion of shared equipment and components in base map i and sub-map j to the total number of equipment and components in the drawing. For professional dependence, , , These are the weighting coefficients for spatial overlap rate, equipment sharing rate, and professional dependence, respectively.

[0006] Preferably, the base map-sub-map association modeling module sets a fixed threshold T=0.6 for drawing linkage determination, and the linkage determination rules are as follows: (1) The overall correlation strength between the i-th base map and the j-th sub-map When the value is ≥0.6, it is determined that there is a valid extension / borrowing relationship between subgraph j and base graph i. Subgraph j belongs to the linkage range of base graph i, is included in the automatic linkage list of base graph i, and is updated and modified synchronously with base graph i. (2) The overall correlation strength between the i-th base map and the j-th sub-map When the value is less than 0.6, it is determined that subgraph j has no effective linkage relationship with basegraph i, and is not included in the linkage control scope of basegraph i, and does not need to be modified synchronously with the basegraph.

[0007] Preferably, the linkage triggering intelligent judgment module constructs a base map linkage update intelligent triggering model, providing the software platform with an algorithmic basis for autonomous identification, autonomous judgment, and autonomous start / stop of linkage operations. The model incorporates the linkage triggering model formula: In the formula, For linkage trigger flag, For the incremental changes in base map i, The overall correlation strength between the i-th base image and the j-th sub-image is given by 0.6, which is the threshold for determining the linkage. The linked trigger intelligent judgment module makes the model judgment rules as follows: (1) =1: If both conditions are met simultaneously, the base map has valid graphic changes and the association strength between the sub-map and the base map meets the standard, the automatic linkage update mechanism is activated, and the sub-map synchronous modification operation is performed. (2) =0: The linkage triggering condition is not met. It is determined that there is no valid change or the subgraph does not have linkage permission. The platform will not perform the subgraph update operation to avoid invalid calculations and incorrect linkage.

[0008] Preferably, the base map change-driven subgraph linkage update module, based on the correlation strength between the base map and the subgraph, establishes a mathematical model for the synchronous update of subgraph elements driven by base map changes. The built-in formula for base map change-driven subgraph update is as follows: In the formula, Before the linked update, the original graphic object data of the associated subgraph j, For the incremental data of the change in base map i, The overall correlation strength between base graph i and subgraph j. This refers to the new graphical object data generated by subgraph j after the linkage update is completed.

[0009] Preferably, the cross-platform graphics consistency verification module constructs a cross-platform graphics consistency verification mathematical model, and the model has the following built-in cross-platform graphics consistency verification formula: In the formula, This represents the average graph deviation across all platforms. This represents the total number of valid linked subgraphs corresponding to the current base map. This is the final standard graphic data for the base map after the changes are completed. This refers to the final graphic data of each sub-graph after the linkage update; The platform-wide graphic consistency verification module is based on the average graphic deviation across all platforms. The verification and judgment logic is as follows: (1) When D→0, it is determined that the modification of the linked graphics across the entire site is accurate, without omissions or deviations, and the graphics are consistent and compliant. (2) When D has a clear value, it is determined that there is an abnormal graphic modification, and the platform automatically marks the erroneous drawing.

[0010] Preferably, the revised drawing workload quantification and evaluation module constructs a revised drawing workload reduction rate evaluation model, and the model has a built-in quantification formula for the revised drawing workload reduction rate as follows: In the formula, To reduce the workload of revising drawings, This represents the workload of traditional manual drawing revisions. This represents the workload for modifying images in conjunction with the platform.

[0011] Preferably, the unique version control module for graphics uses a maximum version number filtering algorithm to lock in the only valid latest version. The determination logic is as follows: In the formula, This is the only currently valid latest version number for the drawing; , ,......, For all historical version numbers generated in each iteration of the same drawing, the system uses the largest version number as the version that is forced to take effect.

[0012] Preferably, the cross-format compatible graphic conversion module has a built-in bidirectional conversion mathematical model. The model uses a cross-format bidirectional conversion formula to achieve standardized classification and reuse of graphic resources. The calculation formula is as follows: In the formula, This is the full data of the AutoCAD format drawing. For the full data of the Visio format graphics, For layer mapping transformation matrix, This is the inverse mapping matrix of the layer.

[0013] Preferably, the system includes the following execution steps: Step 1: Image import: Import image resources in batches or individually into a set of image platform systems, name the images according to the established naming method and unify the image format; Step 2: Define the base map: Define a basic and closely related graphic as the base map according to your needs. The base map is formed through definition. Step 3: Graphic Operations: Perform graphic editing, review, and viewing operations, including reading-only viewing of graphics, reviewing graphics and compiling modification comments, and modifying and improving graphics, including deleting expired and useless graphics and adding new graphics; Step 4: Automatic Update: The base map is automatically updated through system association, and the latest changes are embedded into all graphics related to the base map; Step 5: Storage and Archiving: The final step is to archive the completed graphics in the cloud for users to access and view later.

[0014] Compared with existing technologies, this invention provides an intelligent verification and management system for substation drawings based on graphic data association, which has the following beneficial effects: 1. This invention constructs a multi-dimensional weighted association strength quantification model through a base map-subgraph association modeling module and sets a linkage judgment threshold T=0.6. Combined with the dual-condition joint judgment mechanism of the linkage trigger intelligent judgment module, the system automates and quantifies the linkage relationship between the base map and subgraph, replacing the traditional manual experience-based definition method. This effectively avoids invalid calculations and erroneous linkages in the system, enabling it to have intelligent control capabilities for autonomous identification, autonomous judgment, and autonomous start and stop of linkage operations.

[0015] 2. This invention utilizes the incremental update mathematical model built into the base map change-driven sub-map linkage update module. Only the changed parts of the base map are pushed to the sub-map. The sub-map automatically updates its background without altering existing specific business annotations. This, combined with the platform-wide graphic consistency verification module's automatic traversal verification of the linkage modification results using the platform-wide graphic deviation mean formula, collectively achieves the desired update. Figure 1 The "one-change-all-change" effect of automatic batch synchronization and updating of related subgraphs has been verified by engineering projects. The system can reduce the workload of revising drawings and automatically check for omissions in the revision by verifying the average value of graphic deviations. It forms a precise control link of linkage update-closed-loop error correction, which completely solves the problems of large errors, low efficiency and poor consistency of manual revision of drawings one by one.

[0016] 3. This invention uses a unique version control module for graphics, with the maximum version number as the mandatory effective version. It automatically collects all historical iterations of the same drawing and archives and hides old versions. In coordination with cloud storage and collaborative permission management modules, it achieves the effect of forcibly calling the latest version of graphics by default for all operations of accessing, printing, and attaching drawings across the entire platform, and automatically archiving and hiding old versions, thus eliminating the problems of multiple version accumulation and misuse of old drawings. At the same time, combined with the cross-format compatibility conversion module, it realizes bidirectional lossless compatibility conversion between Visio and AutoCAD graphics, breaking down the geographical limitations of different monitoring points and the format barriers of different drawing software, and ultimately realizing real-time sharing, version unification, and standardized classification and reuse of graphic resources.

[0017] 4. This invention, through the collaborative operation of the front-end application management module and the knowledge base construction and iterative update module, relies on the PMS3.0 system to achieve data connectivity with the production control area, management information area, and internet area. Combined with a five-layer knowledge base architecture—raw material layer → cleaning and processing layer → structured knowledge layer → vector index layer → application output layer—it achieves one-click linking and unified aggregation of information such as drawings, equipment ledgers, records, basic parameters, and inspection points. This enables maintenance personnel to directly associate multi-dimensional equipment information from graphics, realizing the matching and unified management of on-site equipment and information data. Simultaneously, it provides an intuitive and reliable teaching medium for training new substation employees, comprehensively improving the modernization level and operational efficiency of substation maintenance professional data management. Attached Figure Description

[0018] Figure 1 This is a flowchart of the management system execution of the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figure 1 A substation drawing intelligent verification and management system based on graphic data association includes a graphic input and format standardization module, a base map-sub-map association modeling module, a linkage trigger intelligent judgment module, a base map change-driven sub-map linkage update module, a platform-wide graphic consistency verification module, a drawing modification workload quantitative assessment module, a graphic version unique control module, a graphic cross-format compatibility conversion module, a cloud storage and version management module, a collaboration and permission management module, a knowledge base construction and iterative update module, and a front-end application management module. Specific functions and roles are as follows: The graphic import and format standardization module is used to import all graphic data (including Visio, AutoCAD and other formats) from the substation operation and maintenance profession into the system in batches or individually. It unifies the graphic names and formats according to the established naming rules, forming a standardized graphic data library, and assigns a unique initial version number to each file and records the modification history. This module is executed first as the data entry point when the system starts, providing a unified graphic data foundation for all subsequent modules. At the same time, it establishes a graphic directory that supports keyword and graphic number retrieval for use and access across the entire platform. The base map-subgraph association modeling module is used to define fundamental and highly correlated graphs as base maps after the graphs are imported into the database, based on manual configuration by operations personnel or system-assisted identification. It clarifies the graphs' identity types and defines the scope and detailed list of all subgraphs that have extension or borrowing relationships with the base map. This module constructs a multi-dimensional weighted association strength quantification model between base maps and subgraphs, serving as the core basis for determining the linkage relationship of the entire system. Its calculation model and variable definitions are as follows: In the formula, The comprehensive association strength between the i-th base map and the j-th sub-map is defined in the range of [0,1]. It is a core quantitative indicator for determining the identity attributes and linkage relationships of drawings. It is used to determine whether a sub-map belongs to the linkage range of the corresponding base map and whether it needs to be modified and updated synchronously with the base map. Spatial overlap rate (coordinate overlap ratio) represents the proportion of overlap between the geographic coordinates and the drawing area of ​​the base map i and the sub-map j. The value range is [0,1], reflecting the spatial location association attribute of the two maps. The equipment sharing rate (the proportion of the same equipment appearing in two drawings) represents the proportion of the number of shared equipment and components in base drawing i and sub-drawing j to the total number of equipment and components in the drawing. The value range is [0,1], reflecting the hardware equipment association attribute of the two drawings. The professional dependency (weight of safety measures / route / facility map to base map) represents the business dependency weight of professional sub-maps such as safety measures map, operation route map, and facility map on the base map. The value range is [0,1], which reflects the business extension and borrowing dependency relationship of the sub-map on the base map. , , These are the weighting coefficients for spatial overlap rate, equipment sharing rate, and professional dependence, respectively, and all three satisfy the normalization constraint condition. + =1, where , , ∈(0,1), the weight coefficient can be fixedly assigned according to the professional type of the drawing, adapting to the drawing association judgment requirements of different scenarios.

[0021] The base map-sub-map association modeling module sets a fixed threshold T=0.6 for drawing linkage judgment, and the linkage judgment rules are as follows: (1) The overall correlation strength between the i-th base map and the j-th sub-map When the value is ≥0.6, it is determined that there is a valid extension / borrowing relationship between subgraph j and base graph i. Subgraph j belongs to the linkage range of base graph i, is included in the automatic linkage list of base graph i, and is updated and modified synchronously with base graph i. (2) The overall correlation strength between the i-th base map and the j-th sub-map When the value is less than 0.6, it is determined that subgraph j has no effective linkage relationship with basegraph i, and is not included in the linkage control scope of basegraph i, and does not need to be modified synchronously with the basegraph.

[0022] The advantages are: This module establishes a database of relationships between graphics, records the reference dependencies between sub-graphs and base maps, and replaces manual experience-based definition at the system level, realizing the automated and quantitative determination of the linkage relationship between drawings, and providing accurate mathematical basis for subsequent linkage updates.

[0023] The intelligent triggering module is used to intelligently identify whether to activate the linkage mechanism after an editing operation on the base map but before the actual sub-map update. This module uses a dual-condition joint judgment (whether there is a valid graphic change to the base map, and whether the correlation strength between the sub-map and the base map meets the standard) to accurately output trigger signals, avoiding invalid calculations and erroneous linkages. The module constructs an intelligent triggering model for base map linkage updates, providing the software platform with an algorithmic basis for autonomous identification, judgment, and automatic start / stop of linkage operations. The model includes a built-in linkage triggering model formula: In the formula, The linkage trigger flag is a switch variable used to determine whether to activate the automatic linkage update mechanism for subgraphs; when When =1, the system initiates the automatic linkage update mechanism, performing subgraph synchronization modification operations; when When =0, the system will not perform subgraph update operations, thus avoiding the linkage between invalid calculations and errors. For the incremental data of the change in base map i, The overall correlation strength between the i-th base image and the j-th sub-image is given by 0.6, which is the threshold for determining the linkage. The linkage-triggered intelligent judgment module makes the model's judgment rules as follows: (1) =1: If both conditions are met simultaneously, the base map has valid graphic changes and the association strength between the sub-map and the base map meets the standard, the automatic linkage update mechanism is activated, and the sub-map synchronous modification operation is performed. (2) =0: The linkage triggering condition is not met. It is determined that there is no valid change or the subgraph does not have linkage permission. The platform will not perform the subgraph update operation to avoid invalid calculations and incorrect linkage.

[0024] The advantages are: This module achieves autonomous identification and judgment of linkage startup through mathematical model programming, thereby avoiding invalid calculations and erroneous linkage problems, and finally improving the system's operating efficiency.

[0025] The base map change-driven subgraph linkage update module is the core execution module of this invention. It starts after the triggering conditions are met and is used to set up synchronous linkage modification after finalizing all subgraph information related to the base map. This ensures that any change in the base map is linked to all related subgraphs, achieving automatic modification and reducing the workload of users frequently modifying maps. The module combines the correlation strength between the base map and subgraphs to establish a mathematical model for base map change-driven subgraph element synchronous update. The built-in formula for base map change-driven subgraph update is as follows: In the formula, Before the linked update, the original graphic object data of the associated subgraph j includes all basic graphic elements such as the coordinate points, layer attributes, equipment components, and line paths of the subgraph. This represents the incremental change data for base map i, indicating all variable differences generated by base map editing, covering all changes such as base map movement, coordinate adjustment, feature addition, feature deletion, and parameter modification. The comprehensive correlation strength between base graph i and subgraph j is the quantified value calculated by the aforementioned multidimensional weighted model, with a value range of [0,1]. It serves as the weight correction coefficient for subgraph linkage updates, ensuring that subgraphs with higher correlation have higher synchronization update fit. After the linkage update is completed, the new graphic object data generated by subgraph j is the final subgraph graphic result after weighted correction of base map change increment and correlation strength; The advantages are: This module uses an incremental update engine, and during linked updates, only the changed parts of the base map (differentiated layers or map data) are pushed to the sub-map. The sub-map automatically completes the synchronous update of the base map background without changing the original specific business annotations, thereby avoiding a full replacement and improving modification efficiency; at the same time, it only updates the base map background to meet the linkage threshold (…). ≥0.6) effective associated sub-graphs are automatically updated to achieve differentiated and precise linkage, and the updated graphic data is output to the storage and archiving process; its core advantage is that the higher the drawing association strength, the higher the magnitude and accuracy of sub-graph synchronization with the base map change, and the more it matches the spatial, equipment and business dependencies of the drawing, thereby avoiding invalid updates and over-updates, and finally achieving adaptive matching between base map changes and sub-graph updates, completely replacing manual drawing modification work one by one.

[0026] The platform-wide graphic consistency verification module is activated after the linked update is completed. It is used to automatically verify the modified graphics across the entire site. The module constructs a platform-wide graphic consistency verification mathematical model, quantitatively calculates the average graphic deviation between the base map and all related sub-maps, accurately identifies and corrects missing or conflicting graphics, and achieves closed-loop error correction. The model has built-in platform-wide graphic consistency verification formulas (precision verification, core error prevention algorithm) as follows: In the formula, The average graphic deviation across the entire platform represents the overall data deviation between all linked sub-graphs and the base graph. A value that approaches 0 indicates optimal graphic consistency. This represents the total number of valid linked sub-graphs corresponding to the current base map; This serves as the final standard graphic data for the base map after the changes are completed, and as the sole benchmark data source for the site-wide graphic verification. This refers to the final graphic data of each sub-graph after the linkage update; The platform-wide graphic consistency verification module is based on the average graphic deviation across all platforms. The verification and judgment logic is as follows: (1) When D→0, it is determined that the modification of the linked graphics across the entire site is accurate, without omissions or deviations, and the graphics are consistent and compliant. (2) When D has a significant value, it is determined that there is an abnormal graphic that has been modified. The platform automatically marks the erroneous drawing and realizes the closed-loop error correction and verification after linkage modification.

[0027] This module achieves automatic precision verification after linkage modification by traversing all related subgraphs, calculating the deviation one by one, and obtaining the global average value. This provides a reliable mathematical guarantee for the precise control of "one set of graphs, unique version, and zero deviation" across the entire site.

[0028] The advantage is that this algorithm relies on the results of previous drawing association judgments and only applies to cases that meet the linkage threshold condition. For valid associated subgraphs with a value ≥0.6, automatic updates are performed. When any edit change occurs to the base map i, the system automatically extracts the base map change increment. Combining the specific correlation strength between the base map and each subgraph Weighted corrections are applied and superimposed onto the original graphic data of the sub-graph to generate updated sub-graph graphic information. This logic enables differentiated and precise linkage: the higher the correlation strength between the drawings, the higher the magnitude and accuracy of the sub-graph's synchronous base map changes, fully matching the spatial, equipment, and business dependencies of the drawings, thereby avoiding invalid updates and over-updates, and ultimately achieving adaptive matching between base map changes and sub-graph updates.

[0029] The module for quantifying and evaluating the workload of drawing revisions is used to quantify the actual application benefits of intelligent linked drawing modification technology after all linked updates and consistency checks are completed. It digitally reflects the advantages of technological convenience and efficiency improvements. Based on the implementation of the automatic linked drawing modification function, a quantitative evaluation model for the reduction rate of drawing revision workload is constructed. This model is used by the software platform backend to automatically count the amount of work modified and quantitatively analyze the effectiveness of the technology. The model's built-in formula for quantifying the reduction rate of drawing revision workload (the core algorithm for confirming the effectiveness) is as follows: In the formula, The reduction rate of workload in map modification (efficiency improvement rate) is a core quantitative indicator of the benefits of technology application. The value range is [0, 100%]. The higher the value, the more significant the cost reduction and efficiency improvement effect of the linkage technology. This represents the workload of traditional manual map revision, indicating the total number of sub-maps that need to be manually checked and modified one by one after the base map is changed without the support of automatic linkage technology. The platform-linked map modification workload represents the number of remaining map modifications that only require manual fine-tuning and fallback processing after the base map is changed, with the vast majority of map modification work being completed automatically by software algorithms after the adoption of automatic linkage technology. The module automatically calculates the workload savings for each base map change in the background, forming an efficiency analysis ledger and providing a digital basis for confirming the rights and interests of technical benefits. The advantages are: by comparing the difference in workload between the traditional manual map revision mode and the intelligent linkage map revision mode, the workload reduction brought by the technology is accurately quantified in the form of normalized percentage, realizing the digital and visual confirmation of the map revision efficiency improvement effect, solving the problem that the traditional technology effect has no quantitative basis and cannot accurately define the technical advantages, enabling the software backend to automatically count the workload and data saved for each base map change based on the calculation formula, and finally forming an efficiency analysis ledger.

[0030] The following is a verification example for this module: Example 1: Scenario of modifying safety measures drawings for special vehicles (1) Using the traditional manual mode: After the base map is changed, the number of sub-maps needs to be manually modified. =10 sheets; (2) In the linkage mode of the system of the present invention: the algorithm automatically completes the linkage update, and only manual backup is required. =1 sheet; Example 1 Results: The efficiency reduction rate was calculated to be 90%, resulting in a 90% reduction in the workload of revising the drawing.

[0031] Example 2: Equipment Expansion / Additional Drawing Modification Scenario (1) Using the traditional manual mode: After the base map is changed, the associated sub-maps need to be manually modified in batches. =30 sheets; (2) In the system linkage mode of the present invention: bottom Figure 1 The second edit automatically links to the entire quantum graph, leaving only manual processing required. =1 sheet; Example 2 Results: The efficiency reduction rate was calculated to be 96.67%, achieving a reduction of over 96% in the workload of revising the drawings.

[0032] The two embodiments above fully demonstrate the significant advantages of the present invention in reducing the workload of modifying drawings. By modifying the base map through the linkage mechanism, all sub-maps can be automatically synchronized, which can reduce the repetitive modification work by more than 70%, thereby avoiding omissions or errors caused by manual modification one by one, and ensuring that all drawings are "modified in one place, updated everywhere", maintaining a high degree of consistency.

[0033] The unique version control module for graphics runs throughout the entire process of graphics import, editing, modification, and linked updates. It addresses the issues of multiple version accumulation and misuse of old graphics due to frequent iterations. This module automatically aggregates all historical iterations of the same drawing and uses a maximum version number filtering algorithm to lock in the unique and valid latest version. Its determination logic is as follows: In the formula, This is the only currently valid latest version number for the drawing; , ,......, For all historical version numbers generated in each iteration of the same drawing, the system uses the largest version number as the mandatory effective version. All operations such as accessing, printing, and attaching drawings will default to using the latest version, automatically archive and hide old versions, and prevent the problem of mixing new and old versions.

[0034] The advantages are: This module enables the automatic incrementing of the version number of the updated graphic file and synchronization to cloud storage. Each monitoring point can access the latest version of the graphic data in real time. The B / S architecture based on cloud storage breaks the geographical limitations of substation operation and maintenance monitoring points, and ultimately realizes real-time sharing and version unification of graphics, completely solving the engineering problems of mixing old and new versions and misusing old graphics.

[0035] The cross-format compatibility conversion module for graphics is used to achieve bidirectional, lossless compatibility conversion between graphics of different formats such as Visio and AutoCAD during the graphics import and subsequent retrieval processes. It resolves issues such as incompatible graphics formats, layer mismatches, inconsistent symbols, and coordinate deviations. The module has a built-in bidirectional conversion mathematical model, which uses a cross-format bidirectional conversion formula to achieve standardized classification and reuse of graphic resources. The calculation formula is as follows: In the formula, This contains all data for AutoCAD format drawings (coordinates, layers, symbols, component parameters). For the full data of the Visio format graphics; This is a layer mapping transformation matrix used for one-to-one matching of layer rules, graphic symbols, and coordinate systems in two different formats; This is a layer inverse mapping matrix, enabling lossless reverse format conversion. The advantages are: This module eliminates the graphic barriers caused by different drawing tools by unifying the graphics storage standards and calling specifications of the entire platform, thereby achieving bidirectional, lossless, and accurate compatible conversion between Visio and AutoCAD graphics, making all graphic resources highly unified, standardized, and universally adjustable, and further promoting the advancement of paperless office.

[0036] The cloud storage and version management module is used to uniformly store all substation graphic files, assign a unique version number to each file, record modification history, support quick retrieval by keywords and graphic number, and realize real-time retrieval and sharing across monitoring points. Specific functions of the module include: (1) Cloud storage space management, supporting long-term archiving and storage of graphic files; (2) Store the data effectively according to the update date, and store the base map before the update as historical data archived according to a certain period; (3) Support for obsolescence and update: Automatically clean up expired content, set the expiration time when entering data, and automatically archive and hide the expired content; (4) Differentiate between internal and external network knowledge isolation to ensure network security.

[0037] By using cloud storage and version management, we can achieve electronic management of graphic data, thereby effectively reducing the drawbacks of paper document archiving in terms of space occupation and the frequency of paper document changes. This achieves the goal of low carbon and environmental protection while helping to further advance paperless office work.

[0038] The collaboration and access control module is used to implement role-based access control (RBAC), supporting multi-user distributed concurrent operations, ensuring source-side maintenance and global sharing. Specific module functions include: (1) Role and permission allocation: for users such as electrical design and internal staff of various substation specialties in the power industry; (2) Graphic editing locking mechanism: When a user edits a graphic, the system locks the graphic to prevent conflicts; (3) Review process management: Supports the review of graphics and the preparation of modification opinions; (4) Graphic operation management: including reading-only viewing of graphics, modification and improvement, deletion of expired and useless graphics, and adding new graphics.

[0039] The above modules support multi-user distributed concurrent operations to ensure source-end maintenance and global sharing. Through collaboration and access control, it avoids the problem of data retrieval errors caused by updating data on one office computer in the station but not on other unattended computers or different office computers in the same substation, which could lead to production work misinterpretations.

[0040] The knowledge base construction and iterative update module is used to collect a set of initial diagram base information for all substations and add it to the application module's knowledge base. This serves as the graphical management and storage medium for substations. It continuously iterates and updates the knowledge base based on the subsequent development and changes of the substations, ensuring the real-time nature of the data. This module is responsible for constructing the raw material layer → cleaning and processing layer → structured knowledge layer → vector index layer → application output layer. Its specific functions are as follows: (1) Original material layer: Collect all graphic information; (2) Cleaning and processing layer: Cleaning and preprocessing of graphic data to remove duplicate, erroneous, redundant and incomplete graphic data from the original material; (3) Structured knowledge layer: standardize processing, unify graphic formats, unify component illustrations, etc.; (4) Vector index layer: Establish a link for modifying the base map to realize automatic and linked changes of graphics associated with the base map; (5) Application output layer: Output customer requirement graphics.

[0041] The module categorizes update types into: (1) Incremental update: For frequent minor modifications, simple and quick review, direct append to the library, the vector library only adds the corresponding shard vector, without rebuilding the full index; (2) Full reconstruction and update: For the large-scale redesign of the underlying layer, export all existing graphics libraries, clean them uniformly, reclassify them, reslice them, clear the original vectors / indexes, and regenerate the vector library in full. (3) Elimination and Update: Automatically clean up expired content, set the expiration time when entering, and automatically archive and hide it when it expires.

[0042] The advantages are: the above modules continuously iterate and update the data in conjunction with the subsequent development and changes of substations to ensure the real-time nature of the data, enabling operation and maintenance personnel to have a comprehensive grasp of the substation equipment, facility configuration, operating conditions, parameter information, etc., and promoting the overall upgrade of the quality and efficiency of power companies' data management business.

[0043] The front-end application management module provides operators with daily operation and management functions such as image retrieval, editing, and image attachment. Specific functions of the module include: (1) Select the required graphics through the search function, and arbitrarily retrieve and attach the graphics to various common office software such as WPS, which has high compatibility with mainstream office software; (2) Modify the base map and then attach it to the relevant document materials; (3) Set the base map update and storage mode. If the base map needs to be modified and updated, the base map update and storage function can be used to synchronize all graphics related to the base map to the latest version of the base map, including attached documents and other historical data.

[0044] The aforementioned modules also enable one-click linking to basic equipment information: After system application, it can directly link to information from other platforms such as PMS3.0 and the Data Creation Platform, directly connecting to specific equipment (including main and auxiliary equipment), allowing for smoother retrieval of basic information and real-time data, providing professional services for operation and maintenance. It also serves as an information aggregation outlet, facilitating direct association of multi-dimensional data from an equipment perspective (basic equipment and facility information includes basic parameters, functions, operating instructions, inspection points, etc.; historical information includes changes, faults, and anomalies, etc.), enabling real-time access and linkage changes, achieving matching and unified management of on-site equipment and information data; furthermore, it can serve as a training medium, assisting new substation employees in mastering equipment operation, thereby improving their professional skills.

[0045] The overall architecture of this invention adopts a software app-style sub-component structure, which is as follows: underlying data layer → middle platform service layer → front-end application management module, with specific functions as follows: (1) Bottom data layer: All graphics are stored in the database to form a database, which can unify the graphics of different software into the same version, forming a viewable and regularly updated graphic catalog. (2) Middle Platform Service Layer: The PMS3.0 system provides modules with functions such as storage cloud space and query retrieval mode, making it convenient for operators to retrieve and view data from the database or directory; (3) Front-end application management module: provides functions such as searching, retrieving, editing, reviewing, viewing, and attaching images.

[0046] System hardware support: It adopts secure and reliable computing and storage servers, AI computing servers, graphics processing servers and other hardware devices, and uses virtualization, containerization and other technologies to create programming software or platforms related to graphics processing modules, so as to realize the aggregation, application and forwarding of data in the production control area and management information area within the station.

[0047] System Deployment: A graph management application platform module is built within the PMS 3.0 system. This module is part of the basic management architecture of the PMS system, serving as a unified exit point for graph management and maintaining all graphs related to substations in the power industry. After storage, provincial companies can review and view the graphs in the corresponding modules. Graphs serve as a data collection for the graph knowledge base. Finally, data collaboration is achieved through message middleware / API gateways, transmitting relevant data from the provincial company to the company headquarters platform for unified resource management. This invention presents specialized information such as substation layout, equipment configuration, electrical wiring, and low-voltage AC / DC in a graphical format, assisting maintenance personnel in their daily work. This allows them to accurately grasp basic information such as equipment configuration and operating conditions at a glance, thereby significantly improving the modernization level of substation maintenance professional data management. With the support of company or department policies, the usage rate of the software or platform is enhanced. As the sole repository for substation graphical data, it enables users to intuitively access the latest version of first-hand information for graphic printing and viewing at any time. The entire algorithm forms a closed-loop technical system covering correlation judgment, triggering, automatic updating, accuracy verification, benefit quantification, version control, and format compatibility. It is implemented programmatically through mathematical models throughout the entire process, fundamentally solving the industry pain points of traditional manual drawing modification, such as large errors, low efficiency, version chaos, incompatible formats, and poor consistency. The formulas and models constitute the core of the base map linkage change engine, which mathematically guarantees one modification, full map linkage, cloud synchronization, and version uniqueness. It has strong innovation, systematicity, and engineering implementation value. In summary, this system, through the sequential execution and closed-loop collaboration of the aforementioned modules, forms a full-link intelligent management process: graphic input → base map definition → associated modeling → trigger judgment → linkage update → consistency verification → benefit quantification → version control → format compatibility → permission collaboration → knowledge base iteration → front-end output. It replaces manual drawing modification with programmatic mathematical modeling, achieving the precise control goal of one-time modification of substation drawings, full-map linkage, cloud synchronization, and version uniqueness, enabling its application in the field of power distribution and transmission lines.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A substation drawing intelligent verification and management system based on graphic data association, characterized in that, It includes modules for image import and format standardization, base map-sub-map association modeling, linkage trigger intelligent judgment, base map change-driven sub-map linkage update, full-platform image consistency verification, image modification workload quantitative assessment, image version unique control, image cross-format compatibility conversion, cloud storage and version management, collaboration and permission management, knowledge base construction and iterative update, and front-end application management. The graphic data entry and format standardization module is responsible for importing all graphic data of substation operation and maintenance into the system in batches or one by one, unifying graphic names and formats according to established naming rules, forming a standardized graphic data library, assigning a unique initial version number to each file, recording modification history, and establishing a graphic directory that supports keyword and graphic number retrieval for use by the entire platform. After the graphics are entered into the database, the base map-sub-graph association modeling module defines basic and strongly related graphics as base maps based on the manual configuration of the operation and maintenance personnel / system-assisted identification, clarifies their identity type, and delineates the scope and detailed list of all sub-graphs that have an extension or borrowing relationship with the base map. The linkage triggering intelligent judgment module intelligently identifies whether the linkage mechanism is activated after the base map is edited and before the sub-map is actually updated. It determines whether there is a valid graphic change in the base map and whether the correlation strength between the sub-map and the base map meets the standard by setting two conditions, and finally accurately outputs the trigger signal. The base map change-driven sub-map linkage update module is activated after the triggering conditions are met. It is used to set up the function of synchronous linkage modification after finalizing the information of all sub-maps related to the base map, so that any change in the base map can be linked to all related sub-maps. The platform-wide graphic consistency verification module is activated after the linkage update is completed. It is used to automatically verify the modified graphics of the entire site. By calculating the average graphic deviation between the base map and all related sub-maps, it identifies and modifies graphics that have been omitted or conflict with data. After the linkage update and consistency verification are completed, the drawing modification workload quantitative evaluation module constructs a quantitative evaluation model for the reduction rate of drawing modification workload based on the implementation of the automatic linkage modification function. This model is used by the software platform backend to automatically count the amount of modified work and evaluate and analyze the effect of technology empowerment. The unique version control module for graphics runs through the entire process of graphics entry, editing and modification and linkage update. It automatically collects all historical iteration versions of the same drawing and locks the unique and valid latest version through the maximum version number filtering algorithm. The cross-format compatibility conversion module performs bidirectional lossless compatibility conversion between Visio and AutoCAD graphics of different formats during the graphic import and subsequent retrieval processes. The cloud storage and version management module is responsible for uniformly storing all substation graphic files, assigning a unique version number to each file, recording modification history, and supporting quick retrieval by keywords and graphic number. The collaboration and permission management module is based on role-based access control and supports multi-user distributed concurrent operations. The knowledge base construction and iterative update module gathers a set of initial diagram base information for all substations and adds it to the application module knowledge base. This serves as the graphical management and storage medium for substations and is continuously iterated and updated in conjunction with the subsequent development and changes of substations to ensure the real-time nature of the data. The front-end application management module is used to provide operators with daily operation and management functions for retrieving, editing, and attaching graphics.

2. The intelligent verification and management system for substation drawings based on graphic data association as described in claim 1, characterized in that, The basemap-subgraph association modeling module constructs a multidimensional weighted association strength quantification model between the basemap and subgraphs. The association strength calculation formula between basemap i and subgraph j is as follows: In the formula, Let be the combined correlation strength between the i-th base image and the j-th subimage. Spatial overlap rate represents the percentage of overlap between the geographic coordinates and the drawn area of ​​base map i and submap j. The equipment sharing rate represents the proportion of shared equipment and components in base map i and sub-map j to the total number of equipment and components in the drawing. For professional dependence, , , These are the weighting coefficients for spatial overlap rate, equipment sharing rate, and professional dependence, respectively.

3. The intelligent verification and management system for substation drawings based on graphic data association according to claim 2, characterized in that, The base map-sub-map association modeling module sets a fixed threshold T=0.6 for drawing linkage determination, and the linkage determination rules are as follows: (1) The overall correlation strength between the i-th base map and the j-th sub-map When the value is ≥0.6, it is determined that there is a valid extension / borrowing relationship between subgraph j and base graph i. Subgraph j belongs to the linkage range of base graph i, is included in the automatic linkage list of base graph i, and is updated and modified synchronously with base graph i. (2) The overall correlation strength between the i-th base map and the j-th sub-map When the value is less than 0.6, it is determined that subgraph j has no effective linkage relationship with basegraph i, and is not included in the linkage control scope of basegraph i, and does not need to be modified synchronously with the basegraph.

4. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The intelligent judgment module for linkage triggering constructs an intelligent triggering model for base map linkage updates, providing the software platform with an algorithmic basis for autonomous identification, autonomous judgment, and autonomous start / stop of linkage operations. The model incorporates the linkage triggering model formula: In the formula, For linkage trigger flag, For the incremental data of the change in base map i, The overall correlation strength between the i-th base image and the j-th sub-image is given by 0.6, which is the threshold for determining the linkage. The linked trigger intelligent judgment module makes the model judgment rules as follows: (1) =1: If both conditions are met simultaneously, the base map has valid graphic changes and the association strength between the sub-map and the base map meets the standard, the automatic linkage update mechanism is activated, and the sub-map synchronous modification operation is performed. (2) =0: The linkage triggering condition is not met. It is determined that there is no valid change or the subgraph does not have linkage permission. The platform will not perform the subgraph update operation to avoid invalid calculations and incorrect linkage.

5. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The base map change-driven subgraph linkage update module, based on the correlation strength between the base map and the subgraph, establishes a mathematical model for synchronous update of subgraph elements driven by base map changes. The built-in formula for base map change-driven subgraph update is as follows: In the formula, Before the linked update, the original graphic object data of the associated subgraph j, For the incremental data of the change in base map i, The overall correlation strength between base graph i and subgraph j. This refers to the new graphical object data generated by subgraph j after the linkage update is completed.

6. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The platform-wide graphics consistency verification module constructs a platform-wide graphics consistency verification mathematical model, and the model contains the following built-in platform-wide graphics consistency verification formula: In the formula, This represents the average graph deviation across all platforms. This represents the total number of valid linked subgraphs corresponding to the current base map. This is the final standard graphic data for the base map after the changes are completed. This refers to the final graphic data of each sub-graph after the linkage update; The platform-wide graphic consistency verification module is based on the average graphic deviation across all platforms. The verification and judgment logic is as follows: (1) When D→0, it is determined that the modification of the linked graphics across the entire site is accurate, without omissions or deviations, and the graphics are consistent and compliant. (2) When D has a clear value, it is determined that there is an abnormal graphic modification, and the platform automatically marks the erroneous drawing.

7. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The module for quantifying and evaluating the workload of map revision constructs a model for evaluating the reduction rate of map revision workload. The model incorporates the following formula for quantifying the reduction rate of map revision workload: In the formula, To reduce the workload of revising drawings, This represents the workload of traditional manual drawing revisions. This represents the workload for modifying images in conjunction with the platform.

8. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The unique version control module for graphics uses a maximum version number filtering algorithm to lock in the only valid latest version. The determination logic is as follows: In the formula, This is the only currently valid latest version number for the drawing; , ,......, For all historical version numbers generated in each iteration of the same drawing, the system uses the largest version number as the version that is forced to take effect.

9. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The cross-format compatibility conversion module for graphics has a built-in bidirectional conversion mathematical model. The model uses a cross-format bidirectional conversion formula to achieve standardized classification and reuse of graphic resources. The calculation formula is as follows: In the formula, This is the full data of the AutoCAD format drawing. For the full data of the Visio format graphics, For layer mapping transformation matrix, This is the inverse mapping matrix of the layer.

10. The intelligent verification and management system for substation drawings based on graphic data association according to claim 1, characterized in that, The system includes the following execution steps: Step 1: Image import: Import image resources in batches or individually into a set of image platform systems, name the images according to the established naming method and unify the image format; Step 2: Define the base map: Define a basic and closely related graphic as the base map according to your needs. The base map is formed through definition. Step 3: Graphic Operations: Perform graphic editing, review, and viewing operations, including reading-only viewing of graphics, reviewing graphics and compiling modification comments, and modifying and improving graphics, including deleting expired and useless graphics and adding new graphics; Step 4: Automatic Update: The base map is automatically updated through system association, and the latest changes are embedded into all graphics related to the base map; Step 5: Storage and Archiving: The final step is to archive the completed graphics in the cloud for users to access and view later.

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