Substation switch operation and maintenance inspection method and system

Abstract

The invention discloses a substation switch operation and maintenance inspection method and system, and belongs to the technical field of power system automation, and the method comprises the steps: carrying out the access configuration of a switch, and automatically adapting to a switch instruction set; by setting a sensor and a monitoring device, state data of a transformer substation switch are collected in real time for primary operation and maintenance; generating an inspection report according to the primary operation and maintenance result, and performing automatic inspection according to the inspection report through the multi-body collaborative inspection robot; and performing comprehensive analysis according to the collected data and the field inspection result, and generating an operation and maintenance report. According to the invention, automatic adaptation is carried out on instruction sets of mainstream switch manufacturers and models; button type operation is achieved, instruction functions are packaged into shortcut buttons, and information modules are obtained according to needs. Operation and maintenance work of operators is facilitated; and exporting and storing content information of the interactive interface.

Description

Technical Field

[0001] The present invention relates to the technical field of power system automation, and in particular to a substation switch operation and maintenance inspection method and system. Background Art

[0002] In the power system, substations are key nodes for power transmission and distribution, and their stable operation is crucial. In recent years, with the development of information technology, substation switches have played an increasingly important role in data transmission, monitoring and control. However, the existing substation switch operation and maintenance inspection technology has certain limitations. The following is a detailed introduction to the relevant technical background.

[0003] With the continuous advancement of intelligent and networked technologies, the operation and maintenance inspection methods of substation switches have also been improved accordingly. Traditional operation and maintenance inspections are mainly carried out manually, which has problems such as low work efficiency, great safety hazards, and incomplete data analysis. To solve these problems, some researchers have proposed operation and maintenance inspection methods based on sensors and monitoring equipment, which improve the accuracy of operation and maintenance inspections by collecting the status data of switches in real time. However, these methods still need to be improved in terms of automation, data analysis depth, and inspection efficiency.

[0004] In addition, the operation and maintenance inspection of power communication substation switches is usually carried out remotely. The inspectors remotely log in to the substation and other plant-side switches for inspection, obtain log information, and check the operating status and parameters of the switches. The inspectors make analysis and judgment based on their professional knowledge, business capabilities and experience, which places high skill requirements on the inspectors. The manufacturers and models of switches used in various substations are also different. The instruction sets and syntax characteristics of switches from different manufacturers are also different, which makes it difficult for inspectors to master and operate correctly. No other tools dedicated to the operation and maintenance inspection of substation switches have been found. Summary of the invention

[0005] In view of the above-mentioned existing problems, the present invention aims to solve the problems of low automation, incomplete data collection, low inspection efficiency, lack of predictive maintenance and unreasonable resource allocation in the existing substation switch operation and maintenance inspection technology, and proposes a new operation and maintenance inspection method and system. By automatically adapting the switch instruction set, comprehensively and real-time collecting switch status data, generating targeted inspection reports, prioritizing inspections of high-risk areas and implementing predictive maintenance measures, the method aims to improve the automation level and efficiency of inspections, ensure the stable operation of the switch, and optimize the allocation of inspection resources through intelligent decision support, thereby comprehensively improving the intelligence and refinement of substation switch operation and maintenance management.

[0006] In order to solve the above technical problems, a substation switch operation and maintenance inspection method is proposed, including:

[0007] Perform switch access configuration and automatically adapt the switch instruction set; collect status data of substation switches in real time for initial operation and maintenance by setting sensors and monitoring equipment; generate inspection reports based on the initial operation and maintenance results, and use multi-body collaborative inspection robots to conduct automatic inspections based on the inspection reports; conduct comprehensive analysis based on the collected data and on-site inspection results, and generate operation and maintenance reports.

[0008] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, the access configuration includes connecting the handheld network switch operation and maintenance inspection device to the switch console port through a serial port line, accessing the operation and maintenance inspection status, performing user login and security authentication through pre-set login information, and automatically adapting the switch instruction set to read the switch configuration.

[0009] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, the initial operation and maintenance includes real-time collection of substation switch working status data and tracking of switch physical status data;

[0010] The working status data includes flow monitoring data, port status, and error rate;

[0011] The physical status data includes temperature data, power status, and hardware operating status.

[0012] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, the initial operation and maintenance also includes identifying the abnormal situation of the switch for initial operation and maintenance, and performing real-time flow, temperature and power status monitoring and analysis behavior modes, including normal mode, overload mode, overheating mode, voltage abnormality mode and severe abnormality mode;

[0013] When the difference between the real-time flow rate and the normal flow rate does not exceed 10% of the normal flow rate, the real-time temperature is within the set safe working range, and the real-time voltage is within the set normal voltage range, the system determines that it is in normal mode;

[0014] When the difference between real-time traffic and normal traffic exceeds 10% of normal traffic but does not exceed 30%, the system issues an overload warning, marked as mild overload, and prompts operators to pay attention to the increase in traffic; when the difference between real-time traffic and normal traffic exceeds 30% of normal traffic, the system issues an overload alarm, marked as severe overload, and handles it immediately;

[0015] When the real-time temperature exceeds the maximum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as an overheating state and prompts you to take cooling measures; when the real-time temperature is lower than the minimum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as a low temperature state and checks the working status of the equipment;

[0016] If the real-time voltage deviates from the normal voltage and exceeds the set threshold, the system will determine it as an unstable power supply state and check the power supply equipment in time;

[0017] When the flow rate is abnormal but the temperature and voltage are normal, the system determines it as the overload mode; when the temperature exceeds the standard but the flow rate and voltage are normal, the system determines it as the overheat mode; when the voltage is unstable but the flow rate and temperature are normal, the system determines it as the voltage abnormality mode; when the flow rate is overloaded and the temperature is overheated or the power supply is abnormal at the same time, the system will determine it as the serious abnormality mode;

[0018] According to different abnormal modes, the operation and maintenance operations of the expert library and the historical operation and maintenance library are called to perform the initial operation and maintenance of the substation switch. According to the operation and maintenance results, the abnormal points of the switch are marked before each inspection. The more times the abnormal location appears, the larger the number displayed on the screen of the handheld network switch safety inspection device. When the number exceeds 5, it is marked as a red warning area.

[0019] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, the inspection report includes: generating an inspection report of a multi-body collaborative inspection robot according to the marked numbers and red warning areas: inspecting the red warning areas first, planning a first inspection route for all red warning areas, planning a second inspection route for the marked points other than the red warning areas according to the priority from large to small of the displayed numbers, and when the inspections according to the first inspection route and the second inspection route are completed, marking the yellow area on the screen of the handheld network switch safety inspection device as a position not involved in the inspection, and planning a third inspection route including all yellow marked areas;

[0020] Among them, when the robot is patrolling, the background control personnel operate the buttons on the touch screen of the handheld network switch security patrol device, including physical interface status, log query, network port parameters, and VLAN parameters. One button corresponds to an operation instruction. When the button is clicked, the status information is queried and the queried data is exported to the handheld network switch security patrol system. A USB flash drive is inserted into the handheld network switch security patrol device to export the query results to the USB flash drive.

[0021] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, wherein: the inspection route includes: the multi-body collaborative inspection robot calculates the internal priority order of the route according to different inspection routes, and the multi-body collaborative inspection robot performs area division and task allocation according to the internal priority of different inspection routes;

[0022] Before each inspection, robots are allocated in the ratio of 3:2:1 to the first inspection route, the second inspection route, and the third inspection route. When the number of robots is insufficient, they are allocated to the first inspection route first.

[0023] After the inspection begins, the robot automatically patrols inside and around the substation and monitors the regional status in real time. When the robot inspects any color area or digitally marked area, the system automatically or the backend control personnel manually starts to query the status information. After the query is completed and the query results are exported, any color area or digitally marked area is marked green to indicate that the inspection has passed. If any area is found to be not marked green during the inspection, the robot will be re-evaluated and reallocated within 3 minutes to conduct a second inspection of the current route;

[0024] Based on the inspection results, the inspection robot packages the locations of substation switches that have problems more than three times and the exported inspection query results as on-site inspection results and sends them to the system's backend control center for comprehensive analysis.

[0025] As a preferred solution of the substation switch operation and maintenance inspection method described in the present invention, the comprehensive analysis includes performing a comprehensive analysis based on the collected data and the on-site inspection results, and generating an operation and maintenance report;

[0026] The health score of each switch is calculated based on the robot's on-site inspection results. When the score exceeds the threshold a, the system considers the current switch to be in good health and maintains real-time status monitoring;

[0027] When the score is lower than the threshold a, the system considers that the current switch is in a fault state and enters the secondary predictive maintenance process. The system predicts the future fault probability and fault severity based on the historical data and current data of the current switch, implements predictive maintenance measures, generates an operation and maintenance report, and mines the data of the operation and maintenance report, including historical fault data, time intervals and impact range. When the occurrence rate of any fault mode in the historical data increases by 30% in the past three months, an operation and maintenance recommendation to adjust the inspection frequency is added.

[0028] Another object of the present invention is to provide a substation switch operation and maintenance inspection system, which aims to solve the technical problems existing in the existing substation switch operation and maintenance inspection, such as low degree of automation, incomplete data collection, low inspection efficiency, lack of predictive maintenance and unreasonable resource allocation.

[0029] As a preferred solution of the substation switch operation and maintenance inspection system described in the present invention, it is characterized by a data acquisition module, an inspection management module, and an analysis report module;

[0030] The data acquisition module, the system connects the handheld network switch device through a serial port line, and collects the status data of the substation switch in real time, including the working status and physical status, monitors and identifies the abnormal conditions of the switch in real time, generates preliminary operation and maintenance information and feeds it back to the inspection management module in real time;

[0031] The inspection management module generates an inspection report based on the collected preliminary operation and maintenance results, formulates the priority inspection areas for the inspection robots, and plans the inspection routes. According to the planned inspection routes, it allocates multi-body collaborative inspection robots to conduct automatic inspections, monitors the inspection status at any time, and packages the on-site inspection results to the analysis report module;

[0032] The analysis and reporting module receives the on-site inspection results provided by the inspection management module, performs a comprehensive analysis of various data, calculates the health score of each switch, generates a detailed operation and maintenance report, and puts forward predictive maintenance suggestions.

[0033] A computer device includes a memory and a processor, wherein the memory stores a computer program, and is characterized in that when the processor executes the computer program, the steps of the substation switch operation and maintenance inspection method are implemented.

[0034] A computer-readable storage medium having a computer program stored thereon, characterized in that when the computer program is executed by a processor, the steps of the substation switch operation and maintenance inspection method are implemented.

[0035] Beneficial effects of the present invention: The present invention automatically adapts the instruction sets of mainstream switch manufacturers and models; realizes button-type operation, encapsulates instruction functions into shortcut buttons, and obtains information modules on demand. It is convenient for operators to operate and maintain; and the content information of the interactive interface is exported and stored. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 work, among which:

[0037] Figure 1 An overall flow chart of a substation switch operation and maintenance inspection method provided by an embodiment of the present invention.

[0038] Figure 2 An access configuration flow chart of a substation switch operation and maintenance inspection method provided by an embodiment of the present invention.

[0039] Figure 3An interface status information display diagram of a substation switch operation and maintenance inspection method provided by an embodiment of the present invention.

[0040] Figure 4 A schematic diagram of the module structure of a substation switch operation and maintenance inspection system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0041] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the drawings of the specification. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary persons in the art without creative work should fall within the scope of protection of the present invention.

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0043] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0044] The present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0045] At the same time, in the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper, lower, inner and outer" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first, second or third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "install, connect, connect" should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection or an integral connection; it can also be a mechanical connection, an electrical connection or a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] Example 1, reference Figure 1-Figure 3 , which is the first embodiment of the present invention, and provides a substation switch operation and maintenance inspection method, comprising:

[0048] S1: Perform switch access configuration and automatically adapt the switch instruction set.

[0049] It should be noted that if Figure 1 As shown, the handheld network switch operation and maintenance inspection device is connected to the switch console port through a serial port line, accesses the operation and maintenance inspection state, performs user login and security authentication through pre-set login information, and automatically adapts the switch instruction set to read the switch configuration.

[0050] For example, for a Swisscom switch, the interface status information is as follows: Figure 2 shown.

[0051] S2: By setting sensors and monitoring equipment, the status data of the substation switch is collected in real time for initial operation and maintenance.

[0052] It should be noted that the working status data of the substation switch and the physical status data of the switch are collected in real time;

[0053] The working status data includes flow monitoring data, port status, and error rate;

[0054] The traffic monitoring data includes the input and output traffic of the switch;

[0055] The port status includes the enabled or disabled status and traffic load of each port;

[0056] The error rate includes packet loss rate and error rate;

[0057] The physical status data includes temperature data, power status, and hardware operation status;

[0058] The temperature data includes the operating temperature of the switch;

[0059] The power supply status includes power supply stability - voltage and current;

[0060] The hardware operation status includes fan speed and optical fiber connection status.

[0061] It is understandable that the abnormal conditions of the switch are identified for initial operation and maintenance, and real-time traffic, temperature and power status monitoring is performed to analyze the behavior patterns, including normal mode, overload mode, overheating mode, voltage abnormality mode and severe abnormality mode;

[0062] When the difference between the real-time flow rate and the normal flow rate does not exceed 10% of the normal flow rate, the real-time temperature is within the set safe working range, and the real-time voltage is within the set normal voltage range, the system determines that it is in normal mode;

[0063] When the difference between real-time traffic and normal traffic exceeds 10% of normal traffic but does not exceed 30%, the system issues an overload warning, marked as mild overload, and prompts operators to pay attention to the increase in traffic; when the difference between real-time traffic and normal traffic exceeds 30% of normal traffic, the system issues an overload alarm, marked as severe overload, and handles it immediately;

[0064] When the real-time temperature exceeds the maximum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as an overheating state and prompts you to take cooling measures; when the real-time temperature is lower than the minimum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as a low temperature state and checks the working status of the equipment;

[0065] If the real-time voltage deviates from the normal voltage and exceeds the set threshold, the system will determine it as an unstable power supply state and check the power supply equipment in time;

[0066] When the flow rate is abnormal but the temperature and voltage are normal, the system determines it as the overload mode; when the temperature exceeds the standard but the flow rate and voltage are normal, the system determines it as the overheat mode; when the voltage is unstable but the flow rate and temperature are normal, the system determines it as the voltage abnormality mode; when the flow rate is overloaded and the temperature is overheated or the power supply is abnormal at the same time, the system will determine it as the serious abnormality mode;

[0067] According to different abnormal modes, the operation and maintenance operations of the expert library and the historical operation and maintenance library are called to perform the initial operation and maintenance of the substation switch. According to the operation and maintenance results, the abnormal points of the switch are marked before each inspection. The more times the abnormal location appears, the larger the number displayed on the screen of the handheld network switch safety inspection device. When the number exceeds 5, it is marked as a red warning area.

[0068] S3: Generate an inspection report based on the initial operation and maintenance results, and use a multi-body collaborative inspection robot to conduct automatic inspections based on the inspection report.

[0069] It should be noted that the inspection report includes generating an inspection report of a multi-body collaborative inspection robot according to the marked numbers and red warning areas: inspecting the red warning areas first, planning a first inspection route for all red warning areas, planning a second inspection route for the marked points except the red warning areas according to the priority from large to small of the displayed numbers, and when the inspections according to the first inspection route and the second inspection route are completed, marking the yellow areas on the screen of the handheld network switch safety inspection device as locations that are not involved in the inspection, and planning a third inspection route including all yellow marked areas;

[0070] Among them, when the robot is patrolling, the background control personnel operate the buttons on the touch screen of the handheld network switch security patrol device, including physical interface status, log query, network port parameters, and VLAN parameters. One button corresponds to an operation instruction. When the button is clicked, the status information is queried and the queried data is exported to the handheld network switch security patrol system. A USB flash drive is inserted into the handheld network switch security patrol device to export the query results to the USB flash drive.

[0071] It should also be noted that the multi-body collaborative inspection robot calculates the internal priority order of the route according to different inspection routes, multiplies the number of red warning areas by a fixed weight, and multiplies the digital mark inside each red and yellow warning area by the corresponding weight to obtain the internal priority of the inspection route. The multi-body collaborative inspection robot divides the area and allocates tasks according to the internal priority of different inspection routes;

[0072] Before each inspection, robots are allocated in the ratio of 3:2:1 to the first inspection route, the second inspection route, and the third inspection route. When the number of robots is insufficient, they are allocated to the first inspection route first.

[0073] After the inspection begins, the robot automatically patrols inside and around the substation and monitors the regional status in real time. When the robot inspects any color area or digitally marked area, the system automatically or the backend control personnel manually starts to query the status information. After the query is completed and the query results are exported, any color area or digitally marked area is marked green to indicate that the inspection has passed. If any area is found to be not marked green during the inspection, the robot will be re-evaluated and reallocated within 3 minutes to conduct a second inspection of the current route;

[0074] Based on the inspection results, the inspection robot packages the locations of substation switches that have problems more than three times and the exported inspection query results as on-site inspection results and sends them to the system's backend control center for comprehensive analysis.

[0075] S4: Conduct comprehensive analysis based on the collected data and on-site inspection results, and generate an operation and maintenance report.

[0076] It is understandable that comprehensive analysis is conducted based on the collected data and on-site inspection results, and an operation and maintenance report is generated;

[0077] The health score of each switch is calculated based on the robot's on-site inspection results. When the score exceeds the threshold a, the system considers the current switch to be in good health and maintains real-time status monitoring;

[0078] When the score is lower than the threshold a, the system considers that the current switch is in a fault state and enters the secondary predictive maintenance process. The system predicts the future fault probability and fault severity based on the historical data and current data of the current switch, implements predictive maintenance measures, generates an operation and maintenance report, and mines the data of the operation and maintenance report, including historical fault data, time intervals and impact range. When the occurrence rate of any fault mode in the historical data increases by 30% in the past three months, an operation and maintenance recommendation to adjust the inspection frequency is added.

[0079] Embodiment 2, the second embodiment of the present invention, is different from the previous embodiment in that:

[0080] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.

[0081] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in conjunction with such instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in conjunction with such instruction execution systems, devices or apparatuses.

[0082] More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk case (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be a paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, deciphering or, if necessary, processing in another suitable manner, and then stored in a computer memory.

[0083] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0084] Example 3, reference Figure 4 , which is the third embodiment of the present invention, and provides a substation switch operation and maintenance inspection system, including a data acquisition module 10, an inspection management module 20, and an analysis report module 30;

[0085] The data acquisition module 10 system is connected to the handheld network switch device through a serial port line, and collects the status data of the substation switch in real time, including the working status and physical status, monitors and identifies the abnormal conditions of the switch in real time, generates preliminary operation and maintenance information and feeds it back to the inspection management module 20 in real time;

[0086] The inspection management module 20 generates an inspection report based on the collected preliminary operation and maintenance results, formulates the priority inspection areas for the inspection robots, and plans the inspection routes. According to the planned inspection routes, it allocates multiple collaborative inspection robots to conduct automatic inspections, monitors the inspection status at any time, and packages the on-site inspection results to the analysis report module 30;

[0087] The analysis and reporting module 30 receives the on-site inspection results provided by the inspection management module 20, performs a comprehensive analysis on various data, calculates the health score of each switch, generates a detailed operation and maintenance report, and puts forward predictive maintenance suggestions.

[0088] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A substation switch operation and maintenance inspection method, characterized in that: include, Perform switch access configuration and automatically adapt the switch instruction set; By setting sensors and monitoring equipment, the status data of the substation switch is collected in real time for initial operation and maintenance; Generate inspection reports based on the initial operation and maintenance results, and use multi-body collaborative inspection robots to conduct automatic inspections based on the inspection reports; Conduct comprehensive analysis based on the collected data and on-site inspection results, and generate an operation and maintenance report.

2. A substation switch operation and maintenance inspection method according to claim 1, characterized in that: The access configuration includes connecting the handheld network switch operation and maintenance inspection device to the switch console port through a serial port line, accessing the operation and maintenance inspection state, performing user login and security authentication through pre-set login information, and automatically adapting the switch instruction set to read the switch configuration.

3. A substation switch operation and maintenance inspection method according to claim 2, characterized in that: The initial operation and maintenance includes real-time collection of working status data of the substation switch and tracking of physical status data of the switch; The working status data includes flow monitoring data, port status, and error rate; The physical status data includes temperature data, power status, and hardware operating status.

4. A substation switch operation and maintenance inspection method as claimed in claim 3, characterized in that: The initial operation and maintenance also includes identifying abnormal conditions of the switch for initial operation and maintenance, and performing real-time traffic, temperature and power status monitoring and analyzing behavior modes, including normal mode, overload mode, overheating mode, voltage abnormality mode and severe abnormality mode; When the difference between the real-time flow rate and the normal flow rate does not exceed 10% of the normal flow rate, the real-time temperature is within the set safe working range, and the real-time voltage is within the set normal voltage range, the system determines that it is in normal mode; When the difference between real-time traffic and normal traffic exceeds 10% of normal traffic but does not exceed 30%, the system issues an overload warning, marked as mild overload, and prompts operators to pay attention to the increase in traffic; when the difference between real-time traffic and normal traffic exceeds 30% of normal traffic, the system issues an overload alarm, marked as severe overload, and handles it immediately; When the real-time temperature exceeds the maximum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as an overheating state and prompts you to take cooling measures; when the real-time temperature is lower than the minimum safety limit by an additional 5 degrees Celsius safety margin, the system determines it as a low temperature state and checks the working status of the equipment; If the real-time voltage deviates from the normal voltage and exceeds the set threshold, the system will determine it as an unstable power supply state and check the power supply equipment in time; When the flow rate is abnormal but the temperature and voltage are normal, the system determines it as the overload mode; when the temperature exceeds the standard but the flow rate and voltage are normal, the system determines it as the overheat mode; when the voltage is unstable but the flow rate and temperature are normal, the system determines it as the voltage abnormality mode; when the flow rate is overloaded and the temperature is overheated or the power supply is abnormal at the same time, the system will determine it as the serious abnormality mode; According to different abnormal modes, the operation and maintenance operations of the expert library and the historical operation and maintenance library are called to perform the initial operation and maintenance of the substation switch. According to the operation and maintenance results, the abnormal points of the switch are marked before each inspection. The more times the abnormal location appears, the larger the number displayed on the screen of the handheld network switch safety inspection device. When the number exceeds 5, it is marked as a red warning area.

5. A substation switch operation and maintenance inspection method as claimed in claim 4, characterized in that: The inspection report includes generating an inspection report of the multi-body collaborative inspection robot according to the marked numbers and red warning areas: inspecting the red warning areas first, planning a first inspection route for all red warning areas, planning a second inspection route for the marked points other than the red warning areas according to the priorities from large to small of the displayed numbers, and when the inspections according to the first inspection route and the second inspection route are completed, marking the yellow areas on the screen of the handheld network switch safety inspection device as locations not involved in the inspection, and planning a third inspection route including all yellow marked areas; Among them, when the robot is patrolling, the background control personnel operate the buttons on the touch screen of the handheld network switch security patrol device, including physical interface status, log query, network port parameters, and VLAN parameters. One button corresponds to an operation instruction. When the button is clicked, the status information is queried and the queried data is exported to the handheld network switch security patrol system. A USB flash drive is inserted into the handheld network switch security patrol device to export the query results to the USB flash drive.

6. A substation switch operation and maintenance inspection method according to claim 5, characterized in that: The inspection routes include: the multi-body collaborative inspection robot calculates the internal priority order of the route according to different inspection routes, and the multi-body collaborative inspection robot performs area division and task allocation according to the internal priority of different inspection routes; Before each inspection, robots are allocated in the ratio of 3:2:1 to the first inspection route, the second inspection route, and the third inspection route. When the number of robots is insufficient, they are allocated to the first inspection route first. After the inspection begins, the robot automatically patrols inside and around the substation and monitors the regional status in real time. When the robot inspects any color area or digitally marked area, the system automatically or the backend control personnel manually starts to query the status information. After the query is completed and the query results are exported, any color area or digitally marked area is marked green to indicate that the inspection has passed. If any area is found to be not marked green during the inspection, the robot will be re-evaluated and reallocated within 3 minutes to conduct a second inspection of the current route; Based on the inspection results, the inspection robot packages the locations of substation switches that have problems more than three times and the exported inspection query results as on-site inspection results and sends them to the system's backend control center for comprehensive analysis.

7. A substation switch operation and maintenance inspection method according to claim 6, characterized in that: The comprehensive analysis includes conducting a comprehensive analysis based on the collected data and on-site inspection results, and generating an operation and maintenance report; The health score of each switch is calculated based on the robot's on-site inspection results. When the score exceeds the threshold a, the system considers the current switch to be in good health and maintains real-time status monitoring. When the score is lower than the threshold a, the system considers that the current switch is in a fault state and enters the secondary predictive maintenance process. The system predicts the future fault probability and fault severity based on the historical data and current data of the current switch, implements predictive maintenance measures, generates an operation and maintenance report, and mines the data of the operation and maintenance report, including historical fault data, time intervals and impact range. When the occurrence rate of any fault mode in the historical data increases by 30% in the past three months, an operation and maintenance recommendation to adjust the inspection frequency is added.

8. A system using a substation switch operation and maintenance inspection method as claimed in any one of claims 1 to 7, characterized in that: Including data collection module, inspection management module, and analysis report module; The data acquisition module, the system connects the handheld network switch device through a serial port line, and collects the status data of the substation switch in real time, including the working status and physical status, monitors and identifies the abnormal conditions of the switch in real time, generates preliminary operation and maintenance information and feeds it back to the inspection management module in real time; The inspection management module generates an inspection report based on the collected preliminary operation and maintenance results, formulates the priority inspection areas for the inspection robots, and plans the inspection routes. According to the planned inspection routes, it allocates multi-body collaborative inspection robots to conduct automatic inspections, monitors the inspection status at any time, and packages the on-site inspection results to the analysis report module; The analysis and reporting module receives the on-site inspection results provided by the inspection management module, performs a comprehensive analysis of various data, calculates the health score of each switch, generates a detailed operation and maintenance report, and puts forward predictive maintenance suggestions.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of a substation switch operation and maintenance inspection method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of a substation switch operation and maintenance inspection method according to any one of claims 1 to 7 are implemented.

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