Railway power equipment on-site patrol method and system based on GIS positioning
By constructing an integrated GIS equipment data base and BeiDou/RTK positioning, the problems of insufficient positioning accuracy and data fragmentation in railway power equipment inspection were solved, realizing efficient and reliable data collection and management closed loop, adapting to weak network environments, and meeting the needs of lean operation and maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-04-07
AI Technical Summary
Existing railway power equipment inspection technologies suffer from problems such as insufficient positioning accuracy, data fragmentation, poor adaptability to weak networks, and weak access control consistency, resulting in low inspection efficiency and poor data reliability, making it difficult to meet the needs of lean operation and maintenance.
By constructing an integrated GIS equipment data base, a unified mapping between multiple coordinate systems and railway mileage is achieved. Combined with BeiDou/RTK positioning, offline data caching and backhaul are supported. Differentiated inspection templates are configured to perform high-precision navigation and data collection. Data closed-loop management and access control are established to achieve cross-system synchronization.
It improved the accuracy of patrol positioning, enhanced data integration and traceability reliability, improved the continuity of operations in weak network environments, realized closed-loop management and refined access control, and met the lean operation and maintenance needs of railway power equipment.
Smart Images
Figure CN121809830A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of railway power operation and maintenance technology, specifically to a method and system for on-site inspection of railway power equipment based on GIS positioning. Background Technology
[0002] Railway power equipment is characterized by its wide distribution, long lines, and complex environment, making routine inspections a crucial link in ensuring railway power supply safety. Existing inspection technologies mostly employ a loosely coupled architecture of mobile inspection apps, WebGIS platforms, backend business applications, and asset ledger databases. A typical process involves: planning, generating and approving work orders, issuing tasks via WebGIS, data collection via the on-site app, data transmission via weak network caching, and backend aggregation and archiving.
[0003] However, existing technologies have significant drawbacks: deviation grading. Insufficient correlation between positioning accuracy and mileage: Multiple coordinate systems (WGS-84 / CGCS2000 / GCJ-02) coexist with railway mileage, lacking a unified mapping mechanism, resulting in high manual conversion costs, positioning deviations often exceeding 5 meters, which can easily lead to missed or repeated inspections; Data fragmentation and traceability difficulties: Equipment ledgers, records, drawings and spatial positioning information are not effectively linked. Photos and records need to be manually matched with equipment afterward. Due to personnel changes and damage to markers, the efficiency of equipment tracking and data tracing is low. Poor adaptability to weak networks: The local caching mechanism for offline base maps and task data is imperfect and lacks reliable interruption protection and data return mechanism, resulting in poor continuity of operation and easy interruption under conditions of no network or weak network along the railway line, and there is a risk of delayed return or loss of collected data. Insufficient closed-loop management and visualization: Hazard marking, rectification progress, and review results are difficult to present uniformly in the GIS view, making it impossible to form a closed loop of discovery, handling, and review, and key operation and maintenance indicators are lagging behind. Weak consistency of permissions and data: The parallel operation of multiple systems leads to inconsistencies between device IDs and field definitions, resulting in large errors in manual data entry; the division of permissions in workshops / teams is not detailed enough, operation logs are incomplete, and it is difficult to trace responsibility.
[0004] The aforementioned problems result in low efficiency and poor data reliability of existing inspections, making it difficult to meet the needs of lean operation and maintenance of railway power systems. There is an urgent need for an integrated inspection solution that deeply integrates GIS positioning and business processes. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a method and system for on-site inspection of railway power equipment based on GIS positioning. By constructing an integrated GIS data foundation, configurable work order management, intelligent mobile operation, closed-loop data presentation, and cross-system collaboration, the entire inspection process is made more precise, efficient, and standardized.
[0006] The application is achieved by the following technical solutions: A GIS positioning-based on-site inspection method for railway power equipment is provided, and the method comprises the following steps: Step S10: constructing a GIS integrated equipment data base, integrating equipment account books, history records and drawing files of traction substations, switching stations, distribution stations and overhead line cable lines, associating equipment unique identifiers with latitude / longitude / railway mileage data, and establishing a unified mapping and dynamic checking mechanism of WGS-84, CGCS2000 and GCJ-02 coordinate systems and railway mileage; Step S20: displaying equipment by domain according to workshop / shift / team / work area permissions based on GIS spatial view on the Web side, determining the inspection range by circle selection, configuring a differentiated inspection template to obtain an inspection work order, and generating an offline data package to be issued to the mobile side after the approval process; Step S30: after the mobile side imports the offline data package, the offline base map and task data are loaded, the target equipment is navigated according to the positioning information, and the data collection of equipment operating parameters, defect images and inspection track is completed under the condition of no network or weak network; Step S40: binding the collected data with equipment unique identifiers, latitude / longitude and / or line mileage, collection time and operator information, calculating the spatial deviation of the collection position and the target equipment position and comparing it with the preset threshold, checking the spatial deviation of the collection position and the target equipment position, and after the checking is passed, encapsulating the data to generate a return data package and returning it to the background through offline media or offline data channels, and the background completes data analysis and checking and imports and merges to generate a GIS visual closed-loop management view; Step S50: the background synchronizes the inspection data with the EAM and asset account system in both directions, stores data versions and operation logs, and controls permissions according to jurisdiction.
[0007] Preferably, the step of constructing a GIS integrated equipment data base in step S10 comprises: Equipment data collection: obtaining equipment type, hierarchical relationship, latitude / longitude coordinates, railway mileage, running state, installation / maintenance records and CAD drawings, and establishing a unique identifier system including equipment type, jurisdiction area and year; Multi-coordinate system mapping: supporting three mainstream coordinate systems of WGS-84, CGCS2000 and GCJ-02, using linear interpolation algorithm combined with field monument calibration data, setting 1 monument every 12 kilometers, measuring the latitude / longitude of the monument and the mileage, constructing a bidirectional mapping model of latitude / longitude and railway mileage, correcting the model based on updated monument data every quarter, ensuring that the coordinate system and mileage conversion error is ≤1 meter, and solving the positioning inconsistency problem; Data association storage: Using the unique identifier of the equipment as the primary key, the equipment ledger, history records, drawing files and latitude / longitude data are deeply associated to achieve unified storage of location, history and drawings. The associated data can be accessed synchronously by clicking on the equipment location in the GIS view. It supports cross-verification on the same screen and eliminates information fragmentation.
[0008] Preferably, step S20 includes: Inspection template configuration: Configure inspection fields with text, numerical values, images and drop-down selection types according to equipment type and inspection scenario, set required and optional items, and support template saving and reuse; GIS Scope Selection: The web interface displays equipment in domains based on workshop / team / work area permissions. Users can only view resources within their jurisdiction. It supports three patrol range selection methods: polygon selection, route selection, and batch selection of equipment points. The system automatically filters out equipment in non-jurisdictional areas to ensure accurate task scope. Work order approval and issuance: Based on the selected scope and inspection template, inspection work orders are automatically generated. The work order includes information such as equipment list, inspection fields, completion deadline, and responsible person, and flows according to the process of review by the team leader and approval by the workshop technical leader. After approval, the backend generates a corresponding offline data package. The data package includes at least the work order information, equipment data, inspection template, and necessary offline base map / index information, and is transmitted to the mobile terminal for import and use through offline media or offline data channels. After the mobile terminal completes the import, it performs local caching and offline operation to ensure that the inspection task can still be performed according to the work order in the absence of network or weak network environment.
[0009] Preferably, step S30 includes: High-precision navigation: The mobile Android system integrates a Beidou / RTK dual-mode positioning unit with a positioning accuracy of ≤1 meter. It loads offline base maps in MBTiles format or / z / x / y tile directory, supports one-click navigation to the target device, and displays the current location, device location, travel distance, estimated arrival time, and distribution of surrounding devices in real time. It also provides voice prompts to solve the difficulty of device tracking. Weak network operation guarantee: When receiving a work order, the mobile device automatically caches the corresponding offline base map, equipment data and inspection template, supporting the complete operation process in the absence of network or weak network environment; the collected data is encrypted and stored locally (using symmetric encryption algorithm) to reduce the risk of data leakage; when network conditions are available, the system automatically identifies the data that has not been returned and uploads it in an incremental manner, supports interrupted resume, and ensures that the data is returned completely and is not easily lost. On-site data acquisition: Upon arrival at the equipment area, the mobile device automatically verifies the positioning deviation. Data can only be collected if the deviation from the preset equipment position is ≤5 meters. Operators enter parameters such as equipment voltage, current, and temperature through a form, and take images with timestamps / latitude and longitude watermarks that cannot be tampered with. The inspection trajectory is recorded, and the position is collected every 30 seconds. It supports connection to a cable fault tester via Bluetooth / USB to automatically obtain diagnostic data such as insulation resistance and continuity status. During the acquisition process, the completeness of required fields is verified in real time, and submission is not allowed if the fields are not fully filled.
[0010] Preferably, step S40 includes: Data binding and encapsulation: After data collection is completed, the mobile device automatically binds form data, images, diagnostic data with the device's unique identifier, latitude / longitude / mileage, collection time, and operator ID, generating an unalterable data packet with a digital signature to avoid errors from manual matching afterward. Spatial Deviation Verification: After receiving the data packet, the background verifies the deviation between the acquisition position and the preset position of the device based on the multi-coordinate system mapping model established in step S10. If the deviation is ≤5 meters, the data is valid; if the deviation is ≤10 meters, it is marked as needing to be reviewed and the operator is notified for confirmation; if the deviation is >10 meters, it is determined to be invalid data and returned for re-acquisition to ensure that the data is accurately associated with the device. GIS Closed-Loop Display: Valid data is displayed in layers within the web-based GIS view. The equipment layer uses different colors to indicate operating status, such as green for normal and yellow for abnormal. The hazard layer is plotted according to severity level, and the wiring layer displays cable paths and inspection trajectories. It supports closed-loop tracking of hazard discovery, rectification, and review. Upon discovery of a hazard, a rectification task is automatically generated. After rectification, photos are uploaded, and managers mark the loop as closed after review and approval in the GIS view. Simultaneously, metrics such as the number of hazards and rectification rate are statistically analyzed.
[0011] Preferably, step S50 includes: Cross-system synchronization: Establish standardized two-way synchronization interfaces with the EAM system and asset ledger system, and use the RESTful API protocol for interaction. Inspection data is synchronized to the cross system in real time, and changes to equipment master data in the cross system are also synchronized to this system, such as model updates and management adjustments. The synchronization process uses SSL encrypted transmission and field / format / integrity verification to ensure consistency of master data. Log and Version Management: Retain login logs, operation logs, and synchronization logs; manage version changes to inspection records and resumes; and record the content before and after changes and the responsible persons. Access control by domain: Data is isolated by workshop / team / work area, and operation permissions are configured based on role permission matrix, including data viewing, work order creation, approval, modification and deletion. For example, patrol personnel can only view and collect data of their own team, while workshop leaders can view all workshop data and approve work orders, realizing minimum access control and preventing data leakage and misoperation.
[0012] Furthermore, to achieve the above objectives, the present invention also proposes a GIS-based on-site inspection system for railway power equipment, wherein the GIS-based on-site inspection system for railway power equipment includes: GIS Data Base Module: Used to build an integrated GIS equipment data base, integrating equipment ledgers, history records and drawing files of traction substations, switching stations, distribution stations and catenary cable lines, associating unique equipment identifiers with latitude and longitude / railway mileage data, and establishing a unified mapping and dynamic verification mechanism between WGS-84, CGCS2000 and GCJ-02 multi-coordinate systems and railway mileage; Web Work Order Management Module: This module is used on the web to display equipment based on GIS spatial view and categorize it by workshop / team / work area permissions. It allows users to select and determine the inspection range, configure differentiated inspection templates to obtain inspection work orders, and generate offline data packages. After approval, the data packages are sent to the mobile device. Mobile terminal operation module: After the mobile terminal imports the offline data packet, it loads the offline base map and task data, navigates to the target device based on the location information, and completes the collection of data such as equipment operating parameters, defect images and inspection trajectory under conditions of no network or weak network. Closed-loop management module: This module is used to bind the collected data with the unique identifier of the device, latitude and longitude and / or line mileage, collection time and operator information, calculate the spatial deviation between the collection location and the target device location and compare it with a preset threshold, verify the spatial deviation between the collection location and the target device location, and after the verification is passed, encapsulate the data to generate a return data packet and send it back to the backend through offline media or offline data channel. The backend completes the data parsing, verification and import merging to generate a GIS visualization closed-loop management view. Access control module: Used for backend two-way synchronization of inspection data with EAM and asset ledger systems, retaining data versions and operation logs, and controlling access according to jurisdiction.
[0013] Furthermore, to achieve the above objectives, the present invention also proposes a GIS-based on-site inspection device for railway power equipment. The device includes a memory, a processor, and programs such as a GIS-based on-site inspection algorithm for railway power equipment stored in the memory and executable on the processor. The GIS-based on-site inspection algorithm for railway power equipment comprises the steps for implementing the GIS-based on-site inspection method for railway power equipment as described above.
[0014] In addition, to achieve the above objectives, the present invention also provides a computer program product, which includes programs such as a GIS-based on-site inspection algorithm for railway power equipment. When the GIS-based on-site inspection algorithm for railway power equipment is executed by a processor, it implements the GIS-based on-site inspection method for railway power equipment as described above.
[0015] The advantages and effects of this invention are: Precise positioning and high tracking efficiency: By using BeiDou / RTK positioning and multi-coordinate system-mileage unified mapping, the problem of large positioning deviation in existing technologies is solved; positioning, history, and drawings are linked together, and data can be accessed by clicking on the equipment location, reducing the difficulty of tracking caused by personnel changes and damaged markers; Data integration makes traceability more reliable: Collected data is automatically bound to device identification, spatial information, time, and personnel to form an unalterable data package, avoiding post-event matching errors; a unified template and coding system solves the problems of data dispersion and inconsistent standards, improving the credibility of data traceability; Strong adaptability to weak networks and high continuity of operation: Through the local caching mechanism of offline base map and task data, the complete operation process can still be completed in the absence of network or weak network environment; the collected data is encrypted and stored locally on the terminal to reduce the risk of leakage; when network conditions are available, it automatically identifies the data that has not been returned and performs incremental synchronization and supports interrupted resume transmission, thereby adapting to the complex network environment along the railway and improving the integrity of data return. Closed-loop management provides support for decision-making: The GIS view displays equipment status, potential hazards, and trajectories in layers, enabling closed-loop management of discovery, rectification, and review; it automatically calculates indicators such as coverage rate and rectification rate, generating visual reports to provide data support for lean operation and maintenance decisions; Fine-grained permissions, security and compliance: Data is isolated by hierarchical domains, minimum permissions are configured based on roles, and operation logs and version tracking are kept throughout the process to meet the requirements of accountability and compliance and prevent data leakage and misoperation; Highly compatible and easy to extend: It is compatible with mainstream coordinate systems and offline base map formats, supports synchronization with existing systems such as EAM and asset ledgers, and requires minimal modification to existing systems; it supports modular extension, adding new device types and extended fields to meet the needs of different operation and maintenance units. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a flowchart of a method for on-site inspection of railway power equipment based on GIS positioning according to the present invention.
[0018] Figure 2 This is a schematic diagram of the structure of a GIS-based on-site inspection system for railway power equipment according to the present invention.
[0019] Figure 3 This is a schematic block diagram of an electronic device for on-site inspection of railway power equipment based on GIS positioning, according to the present invention. Detailed Implementation
[0020] 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.
[0021] like Figure 1 As shown, in one embodiment of the present invention, a method for on-site inspection of railway power equipment based on GIS positioning includes the following steps: Step S10: Construct an integrated GIS equipment data base, integrate equipment ledgers, history records and drawings of traction substations, switching stations, distribution stations and overhead contact line cable lines, associate equipment unique identifiers with latitude and longitude / railway mileage data, and establish a unified mapping and dynamic verification mechanism between WGS-84, CGCS2000 and GCJ-02 multi-coordinate systems and railway mileage.
[0022] Specifically, step S10, which involves constructing the integrated GIS equipment data base, includes: Equipment data acquisition: Obtain equipment type, hierarchical relationship, latitude and longitude coordinates (accurate to 6 decimal places), railway mileage (accurate to meters), operating status, installation / maintenance records and CAD drawings, and establish a unique identification system with coding rules including equipment type, jurisdiction area and year, such as BYQ-01-2020-001, where BYQ represents transformer; Multi-coordinate system mapping: Supports three mainstream coordinate systems: WGS-84, CGCS2000, and GCJ-02. It adopts a linear interpolation algorithm combined with real-world marker calibration data, setting one marker every 12 kilometers, measuring the latitude and longitude of the markers and the mileage, and constructing a two-way mapping model between latitude and longitude and railway mileage. The model is corrected quarterly based on the updated marker data to ensure that the coordinate system and mileage conversion error is ≤1 meter, thus solving the problem of inconsistent positioning. Data association storage: Using the unique identifier of the equipment as the primary key, the equipment ledger, history records, drawing files and latitude / longitude data are deeply associated to achieve unified storage of location, history and drawings. The associated data can be accessed synchronously by clicking on the equipment location in the GIS view. It supports cross-verification on the same screen and eliminates information fragmentation.
[0023] Step S20: The Web client displays equipment based on the GIS spatial view, categorized by workshop / team / work area permissions, selects and determines the inspection range, configures differentiated inspection templates to obtain inspection work orders, and generates offline data packets, which are then sent to the mobile client after approval.
[0024] Specifically, step S20 includes: Inspection template configuration: Configure inspection fields with text, numerical values, images and drop-down selection types according to equipment type and inspection scenario. Equipment types include transformers, circuit breakers, cable joints, etc. Inspection scenarios include daily inspections, special maintenance, etc. Set required items and optional items, and support template saving and reuse; GIS Scope Selection: The web interface displays equipment by workshop / team / work area permissions, and users can only view resources within their jurisdiction. It supports three patrol range selection methods: polygon selection (manually drawing the area), selection along the line (selecting the cable line and then expanding the range by 50 meters), and batch selection of equipment points. The system automatically filters out equipment in non-jurisdictional areas to ensure accurate task scope. Work order approval and issuance: Based on the selected scope and inspection template, inspection work orders are automatically generated. The work order includes information such as equipment list, inspection fields, completion deadline and responsible person, and flows according to the process of review by the team leader and approval by the workshop technical leader. After approval, the backend encapsulates the work order and its associated equipment data, inspection template and necessary base map / index information into an offline distribution data package, and transmits it to the mobile terminal for import through offline media or offline data channel. After the mobile terminal completes the import, it is cached locally, and the complete inspection operation process can still be executed in the absence of network or weak network environment.
[0025] Step S30: After importing the offline data packet on the mobile device, load the offline base map and task data, navigate to the target device based on the location information, and complete the collection of data such as device operating parameters, defect images and inspection trajectory under no network or weak network conditions.
[0026] Specifically, step S30 includes: High-precision navigation: The mobile Android system integrates a Beidou / RTK dual-mode positioning unit with a positioning accuracy of ≤1 meter. It loads offline base maps in MBTiles format or / z / x / y tile directory, supports one-click navigation to the target device, and displays the current location, device location, travel distance, estimated arrival time, and distribution of surrounding devices in real time. It also provides voice prompts, such as "100 meters from the target device, ready to collect data," solving the difficulty of device tracking. Weak network operation guarantee: When receiving a work order, the mobile device automatically caches the corresponding offline base map, equipment data, and inspection template, supporting the complete operation process in environments without network or with weak network; the collected data is encrypted and stored locally on the terminal, for example, using a symmetric encryption algorithm to reduce the risk of leakage; after the operation is completed, the system encapsulates the data that has not been returned to generate a return data packet, and transmits it to the backend through offline media or offline data channels, where the backend performs data packet parsing, verification, import and merging (including conflict handling and record keeping) to ensure complete data return and prevent data loss; On-site data acquisition: Upon arrival at the equipment area, the mobile device automatically verifies the positioning deviation. Data can only be collected if the deviation from the preset equipment position is ≤5 meters. Operators enter parameters such as equipment voltage, current, and temperature through a form, and take images with timestamps / latitude and longitude watermarks that cannot be tampered with. The inspection trajectory is recorded, and the position is collected every 30 seconds. It supports connection to a cable fault tester via Bluetooth / USB to automatically obtain diagnostic data such as insulation resistance and continuity status. During the acquisition process, the completeness of required fields is verified in real time, and submission is not allowed if the fields are not fully filled.
[0027] Step S40: Bind the collected data with the device's unique identifier, latitude and longitude and / or route mileage, collection time and operator information, calculate the spatial deviation between the collection location and the target device location and compare it with a preset threshold, perform spatial deviation verification between the collection location and the target device location, and after the verification is passed, encapsulate the data to generate a return data packet and return it to the backend through offline media or offline data channel. After the backend completes data parsing, verification and import merging, a GIS visualization closed-loop management view is generated.
[0028] Specifically, step S40 includes: Data binding and encapsulation: After data collection is completed, the mobile device automatically binds form data, images, diagnostic data with the device's unique identifier, latitude / longitude / mileage, collection time, and operator ID, generating an unalterable data packet with a digital signature to avoid errors from manual matching afterward. Spatial Deviation Verification: After receiving the data packet, the background verifies the deviation between the acquisition position and the preset position of the device based on the multi-coordinate system mapping model established in step S10. If the deviation is ≤5 meters, the data is valid; if the deviation is ≤10 meters, it is marked as needing to be reviewed and the operator is notified for confirmation; if the deviation is >10 meters, it is determined to be invalid data and returned for re-acquisition to ensure that the data is accurately associated with the device. GIS Closed-Loop Display: Valid data is displayed in layers within the web-based GIS view. The equipment layer uses different colors to indicate operating status, such as green for normal and yellow for abnormal. The hazard layer is plotted according to severity, for example, blue for general, yellow for important, and red for urgent. The wiring layer displays cable paths and inspection trajectories. It supports closed-loop tracking of hazard discovery, rectification, and review. Upon discovery of a hazard, a rectification task is automatically generated. After rectification, photos are uploaded, and managers mark the loop as closed after review and approval in the GIS view. Simultaneously, metrics such as the number of hazards and rectification rate are statistically analyzed.
[0029] Step S50: The backend synchronizes the inspection data with the EAM and asset ledger systems in both directions, retains data versions and operation logs, and manages permissions according to the scope of jurisdiction.
[0030] Specifically, step S50 includes: Cross-system synchronization: Establish a standardized two-way synchronization interface with the EAM system and asset ledger system, and use the RESTful API protocol for interaction. Inspection data is synchronized to the cross system in real time. Inspection data includes equipment status, defect records, etc. Changes to equipment master data in the cross system are also synchronized to this system, such as model updates and management adjustments. The synchronization process uses SSL encrypted transmission and field / format / integrity verification to ensure consistency of master data. Log and Version Management: Retain login logs, operation logs, and synchronization logs. Login logs include time, device, and IP address; operation logs include type, object, and result; and synchronization logs include status and content. Version management is implemented for patrol records and history changes, recording the content before and after the change and the responsible person. Access control by domain: Data is isolated by workshop / team / work area, and operation permissions are configured based on role permission matrix, including data viewing, work order creation, approval, modification and deletion. For example, patrol personnel can only view and collect data of their own team, while workshop leaders can view all workshop data and approve work orders, realizing minimum access control and preventing data leakage and misoperation.
[0031] In addition, such as Figure 2 As shown, in one embodiment of the present invention, a GIS-based on-site inspection system for railway power equipment is proposed. This GIS-based on-site inspection system for railway power equipment includes: GIS Data Base Module: Used to build an integrated GIS equipment data base, integrating equipment ledgers, history records and drawing files of traction substations, switching stations, distribution stations and catenary cable lines, associating unique equipment identifiers with latitude and longitude / railway mileage data, and establishing a unified mapping and dynamic verification mechanism between WGS-84, CGCS2000 and GCJ-02 multi-coordinate systems and railway mileage; Web Work Order Management Module: This module is used on the web to display equipment based on GIS spatial view and categorize it by workshop / team / work area permissions. It allows users to select and determine the inspection range, configure differentiated inspection templates to obtain inspection work orders, and generate offline data packages. After approval, the data packages are sent to the mobile device. Mobile terminal operation module: After the mobile terminal imports the offline data packet, it loads the offline base map and task data, navigates to the target device based on the location information, and completes the collection of data such as equipment operating parameters, defect images and inspection trajectory under conditions of no network or weak network. Closed-loop management module: This module is used to bind the collected data with the unique identifier of the device, latitude and longitude and / or line mileage, collection time and operator information, calculate the spatial deviation between the collection location and the target device location and compare it with a preset threshold, verify the spatial deviation between the collection location and the target device location, and after the verification is passed, encapsulate the data to generate a return data packet and send it back to the backend through offline media or offline data channel. The backend completes the data parsing, verification and import merging to generate a GIS visualization closed-loop management view. Access control module: Used for backend two-way synchronization of inspection data with EAM and asset ledger systems, retaining data versions and operation logs, and controlling access according to jurisdiction.
[0032] This application provides a GIS-based on-site inspection system for railway power equipment, employing a GIS-based on-site inspection method for railway power equipment as described in the above embodiments. This system addresses the technical problems of inaccurate positioning, data fragmentation, and operational interruptions due to weak network conditions in existing inspection methods. Compared to existing technologies, the beneficial effects of the GIS-based on-site inspection system for railway power equipment provided in this application are the same as those of the GIS-based on-site inspection method for railway power equipment provided in the above embodiments. Furthermore, other technical features of the GIS-based on-site inspection system for railway power equipment are the same as those disclosed in the methods of the above embodiments, and will not be elaborated upon here.
[0033] This application provides a GIS-based on-site inspection device for railway power equipment. The GIS-based on-site inspection device for railway power equipment includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to execute the GIS-based on-site inspection method for railway power equipment described in Embodiment 1 above.
[0034] like Figure 3As shown in the illustration, in one embodiment of the present invention, a structural schematic diagram of a GIS-based on-site inspection device for railway power equipment suitable for implementing embodiments of the present application is presented. The GIS-based on-site inspection device for railway power equipment in this embodiment may include, but is not limited to, mobile terminals such as mobile phones, laptops, digital radio receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Description), PMPs (Portable Media Players), etc., as well as fixed terminals such as digital TVs, desktop computers, etc. Figure 3 The GIS-based on-site inspection device for railway power equipment shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments in this application.
[0035] Figure 3 The illustrated GIS-based on-site inspection device for railway power equipment may include a processor 1001 (e.g., a central processing unit, graphics processing unit, etc.), which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 1002 or a program loaded from a storage device 1003 into a machine-readable storage medium (RAM) 1004. The RAM 1004 also stores various programs and data required for the operation of the GIS-based on-site inspection device for railway power equipment. The processor 1001, the read-only memory 1002, and the machine-readable storage medium 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, touchscreens, touchpads, keyboards, mice, image sensors, microphones, accelerometers, gyroscopes, etc.; output devices 1008 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 1003 including, for example, magnetic tapes, hard disks, etc.; and a communication unit 1009. Communication unit 1009 allows a GIS-based on-site inspection device for railway power equipment to exchange data wirelessly or via wired communication with other devices. Although the figure shows a GIS-based on-site inspection device for railway power equipment with various systems, it should be understood that it is not required to implement or possess all the systems shown. More or fewer systems can be implemented alternatively.
[0036] Specifically, according to the embodiments disclosed in this application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments disclosed in this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via a communication system, or installed from storage device 1003, or installed from read-only memory 1002. When the computer program is executed by processor 1001, it performs the functions defined in the methods of the embodiments disclosed in this application.
[0037] This application provides a GIS-based on-site inspection device for railway power equipment, employing a GIS-based on-site inspection method for railway power equipment as described in the above embodiments. This method effectively solves the technical problems of inaccurate positioning, data fragmentation, and interruption of operations due to weak network conditions in existing inspections. Compared with the prior art, the beneficial effects of the GIS-based on-site inspection device for railway power equipment provided in this application are the same as those of the GIS-based on-site inspection method for railway power equipment provided in the above embodiments. Furthermore, other technical features of this GIS-based on-site inspection device for railway power equipment are the same as those disclosed in the previous embodiment method, and will not be repeated here.
[0038] The various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.
[0039] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the above-described method for on-site inspection of railway power equipment based on GIS positioning.
[0040] The computer program product provided in this application can solve the technical problems of inaccurate inspection positioning, data fragmentation, and operation interruption due to weak network conditions. Compared with the prior art, the beneficial effects of the computer program product provided in this application are the same as those of the on-site inspection method for railway power equipment based on GIS positioning provided in the above embodiments, and will not be repeated here.
[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A method for on-site inspection of railway power equipment based on GIS positioning, characterized in that, The method includes the following steps: Step S10: Construct an integrated GIS equipment data base, integrate equipment ledgers, history records and drawings of traction substations, switching stations, distribution stations and contact network cable lines, associate equipment unique identifiers with latitude and longitude / railway mileage data, and establish a unified mapping and dynamic verification mechanism between WGS-84, CGCS2000 and GCJ-02 multi-coordinate systems and railway mileage. Step S20: The Web client displays equipment based on the GIS spatial view according to workshop / team / work area permissions, selects and determines the inspection range, configures differentiated inspection templates to obtain inspection work orders, and generates offline data packages, which are then sent to the mobile client after approval. Step S30: After importing the offline data packet on the mobile device, load the offline base map and task data, navigate to the target device based on the location information, and complete the data collection of equipment operating parameters, defect images and inspection trajectory without network access. Step S40: Bind the collected data with the device's unique identifier, latitude / longitude, collection time, and operator information, and perform spatial deviation verification. The verified data is packaged locally on the mobile device to generate a return data packet, which is then transmitted to the backend for parsing, verification, import into the database, and merging processing via offline media or offline data channels. Finally, a visual closed-loop management view is generated on the GIS platform. Step S50: The backend synchronizes the inspection data with the EAM and asset ledger systems in both directions, retains data versions and operation logs, and manages permissions according to the scope of jurisdiction.
2. The method for on-site inspection of railway power equipment based on GIS positioning according to claim 1, characterized in that, The step of constructing the GIS integrated equipment data base in step S10 includes: Equipment data acquisition: Obtain equipment type, hierarchical relationship, latitude and longitude coordinates, railway mileage and operating status, installation / maintenance records and CAD drawings, and establish a unique identification system with coding rules including equipment type, jurisdiction area and year; Multi-coordinate system mapping: A two-way mapping model between latitude and longitude and railway mileage is constructed by using a linear interpolation algorithm combined with real-world marker calibration data. The model is corrected quarterly based on updated marker data. Data association storage: Using the device's unique identifier as the primary key, it associates ledgers, records, drawings, and spatial data to achieve a unified association of location, records, and drawings.
3. The method for on-site inspection of railway power equipment based on GIS positioning according to claim 1, characterized in that, Step S20 includes: Inspection template configuration: Configure inspection fields with text, numerical values, images and drop-down selection types according to equipment type and inspection scenario, set required and optional items, and support template saving and reuse; GIS Range Selection: The web interface supports three methods to determine the patrol range: polygon selection, selection within 50 meters along the route, and batch selection of equipment points, and automatically filters out equipment in non-managed areas; Work order approval and issuance: Based on the selected scope and inspection template, inspection work orders are automatically generated and processed according to the process of review by the team leader and approval by the workshop technical leader. After approval, the backend encapsulates the work order and its associated equipment data, inspection template and base map / index information into an offline issuance data package, and transmits it to the mobile terminal for import through offline media or offline data channel. After the mobile terminal completes the import, it is cached locally.
4. The method for on-site inspection of railway power equipment based on GIS positioning according to claim 1, characterized in that, Step S30 includes: High-precision navigation: The mobile terminal integrates a Beidou / RTK dual-mode positioning module, loads offline base maps in MBTiles format or / z / x / y tile directory, and displays location, distance and voice prompts in real time; Weak network operation guarantee: When receiving work orders, offline base map, equipment data and inspection template are automatically cached. The collected data is encrypted and stored locally, and uploaded incrementally when network conditions are available and supports interrupted resume. In the case of internal and external network isolation, the collected data is encapsulated into return data packets and returned to the background through offline media or offline data channels. On-site data acquisition: Data acquisition is allowed when the positioning deviation is ≤5 meters. Input the equipment voltage, current and temperature parameters, take images with timestamp / latitude and longitude watermarks, and obtain insulation resistance diagnostic data through Bluetooth connection to the cable fault tester. Verify the required fields in real time.
5. A method for on-site inspection of railway power equipment based on GIS positioning according to claim 1, characterized in that, Step S40 includes: Data binding and encapsulation: The collected data is automatically bound to the device's unique identifier, latitude / longitude / mileage, collection time, and operator ID, generating an unalterable data packet with a digital signature; Spatial Deviation Verification: The backend verifies the deviation between the collected position and the device's preset position based on a multi-coordinate system mapping model. Data with a deviation ≤ 5 meters is marked as valid; data with a deviation between 5 meters and 10 meters is marked as needing to be verified; data with a deviation > 10 meters is returned for re-collection. GIS closed-loop display: Effective data is displayed in layers in the GIS view. The equipment layer shows the operating status, the hidden danger layer is plotted according to the level, and the line layer shows the cable path and inspection trajectory, supporting closed-loop tracking of hidden danger discovery, rectification, and review.
6. A method for on-site inspection of railway power equipment based on GIS positioning according to claim 1, characterized in that, Step S50 includes: Cross-system synchronization: Establish standardized two-way synchronization interfaces with the EAM system and asset ledger system, and use the RESTful API protocol for interaction. After the inspection data is imported and merged, the inspection records and hidden danger results are synchronized to the external system, and the equipment master data changes of the external system are synchronized to this system. Field, format and integrity are checked during the synchronization process. Log and Version Management: Retain login logs, operation logs, and synchronization logs; manage version changes to inspection records and resumes; and record the content before and after changes and the responsible persons. Access control by domain: Data is separated by workshop / team / work area, and permissions for viewing data, creating work orders and approving work orders are configured based on roles.
7. A GIS-based on-site inspection system for railway power equipment, characterized in that, The method for on-site inspection of railway power equipment based on GIS positioning as described in claim 1 includes: GIS Data Base Module: Used to build an integrated GIS equipment data base, integrating equipment ledgers, history records and drawing files of traction substations, switching stations, distribution stations and catenary cable lines, associating unique equipment identifiers with latitude and longitude / railway mileage data, and establishing a unified mapping and dynamic verification mechanism between WGS-84, CGCS2000 and GCJ-02 multi-coordinate systems and railway mileage; Web Work Order Management Module: This module is used on the web to display equipment based on GIS spatial views and categorize it by workshop / team / work area permissions. It allows users to select and determine the inspection range, configure differentiated inspection templates to generate inspection work orders, and then send them to the mobile device after approval. Mobile terminal operation module: After importing offline data packets on the mobile terminal, it loads offline base maps and task data, navigates to the target device based on the location information, and completes the collection of data such as equipment operating parameters, defect images and inspection trajectories without network access; Closed-loop management module: It is used to bind the collected data with the unique device identifier, latitude and longitude / mileage, collection time and operator information, and perform spatial deviation verification. The verified data is packaged locally on the mobile terminal to generate a return data packet, which is transmitted to the backend for parsing, verification, import into the database and merge processing through offline media or offline data channel, and a visual closed-loop management view is generated on the GIS platform. Access control module: Used for backend two-way synchronization of inspection data with EAM and asset ledger systems, retaining data versions and operation logs, and controlling access according to jurisdiction.
8. A GIS-based on-site inspection device for railway power equipment, characterized in that, include: The system includes a memory, a processor, and a GIS-based on-site inspection program for railway power equipment stored in the memory and executable on the processor. When the GIS-based on-site inspection program for railway power equipment is executed by the processor, it implements a GIS-based on-site inspection method for railway power equipment as described in any one of claims 1 to 6.
9. A computer program product, characterized in that, The computer program product includes a GIS-based on-site inspection program for railway power equipment. When the GIS-based on-site inspection program for railway power equipment is executed by a processor, it implements a GIS-based on-site inspection method for railway power equipment as described in any one of claims 1 to 6.