Substation off-line check monitoring background remote signaling alarm method and system

Abstract

The invention relates to a substation off-line check monitoring background remote signaling alarm method and system. The method comprises the following steps: pre-testing and debugging a substation monitoring background and protection measurement and control equipment; importing the configuration file into a system, analyzing and extracting information, and generating an interval signal identifier according to the information; the system is directly connected to a station control layer network of a substation monitoring background, and the time setting of the system is adjusted to be faster than the current actual time; initializing all related signals to a preset'off 'state, simulating functions of station level equipment, sequentially triggering the signals according to a sequence number sequence, and recording information during each triggering; according to the starting time of the simulation trigger signal, extracting a monitoring background picture log of a corresponding time period from a monitoring background; matching the monitoring background picture log with the simulation trigger record according to the SOE information to generate a combined record, and performing standardization processing at the same time; and checking each combined record, and judging that the picture signal configuration of the monitoring background is correct.

Description

Technical Field

[0001] The present invention relates to the technical field of off-line automatic calibration of transformer substations, and in particular to a background remote signaling alarm method and system for off-line calibration monitoring of transformer substations. Background Art

[0002] In the power system, the substation monitoring system undoubtedly plays a crucial role, ensuring the safe, stable, and efficient operation of the power grid. As the "brain" of the entire power system, the substation monitoring system is responsible for real-time monitoring, control, protection, and communication. It receives operational data from various electrical equipment within the substation, such as voltage, current, and power factor, as well as device status information such as switch position and protection actions. By analyzing and processing this data, the monitoring system can promptly identify and resolve potential problems in power grid operation, ensuring stable operation.

[0003] In the power system, the existing method for verifying the remote signaling alarm configuration of the substation monitoring background screen mainly relies on manual operation. This method has the following defects: 1. Manual verification requires checking each telesignaling point and alarm configuration individually. This one-by-one approach is extremely time-consuming and cumbersome, especially as the scale of the power grid continues to expand. Its efficiency is difficult to adapt to the rapid increase in configurations. Due to the limitations of manual operation, the verification process is often not carried out in real time. This may result in potential problems in the power grid not being discovered and addressed in a timely manner, thus affecting the stable operation of the power grid.

[0004] 2. Manual operation is easily influenced by factors such as personal experience and concentration, which can lead to misjudgments or omissions of important information. Due to the instability of manual operation, verification results may deviate from or be inconsistent with actual conditions, reducing data accuracy. Misjudgments or omissions can prevent potential safety hazards from being discovered and addressed in a timely manner, increasing the risk of power grid operation. The instability of manual operation reduces the reliability of the monitoring backend's alarm function, which may not accurately reflect the actual operating status of the power grid.

[0005] 3. Different personnel may use different methods and standards when conducting verification, resulting in inconsistent and incomparable verification results. This can lead to increased maintenance costs, such as the need for repeated verification and debugging.

[0006] 4. During the operation of the power grid, some emergency alarms and abnormal conditions require rapid response and processing, but delays in manual verification may lead to reduced response speed, thereby affecting the stability and security of the power grid. Summary of the Invention In order to solve the above technical problems or at least partially solve the above technical problems, the present invention provides a substation offline verification monitoring background remote signaling alarm method and system.

[0007] In a first aspect, the present invention provides a substation offline verification monitoring background remote signaling alarm method, comprising: S1, before the dispatch channel is officially connected, pre-test and debug the substation monitoring background and protection measurement and control equipment to ensure that all equipment is in the set working state; S2, import the SCD file and the substation monitoring background acceptance point table file into the system, parse them, extract information, and generate a specific interval signal identifier based on the extracted information; S3. Connect the system directly to the station control layer network of the substation monitoring backend, and adjust the system time setting to a time that is faster than the current actual time; S4. Initialize all relevant signals to the preset "open" state, simulate the function of the station control layer equipment, trigger the signals in sequence according to the sequence number, first perform the "close" operation and then the "open" operation, and record the sequence number, interval signal, transmission value and SOE information of each trigger; S5. According to the start time of the analog trigger signal, the monitoring background screen log of the corresponding time period is extracted from the monitoring background. The content of the monitoring background screen log includes the sequence number, interval signal, received value and SOE information; S6. Import the extracted monitoring background screen log into the system and match it with the simulation trigger record according to the consistency of SOE information to generate a combined record containing the sequence number, sending interval signal, sending value, receiving interval signal and receiving value, and perform standardization at the same time; S7. Check each combination record and ensure that the following conditions are met for each serial number in the monitoring background acceptance point table: if there are two records containing any serial number, in these two records, the "received value" corresponds to the "open" and "closed" states respectively; the "send value" in each record is consistent with the "received value"; the "send interval signal" and the "receive interval signal" in each record have the same meaning; if all the above conditions are met, it is determined that the monitoring background screen signal configuration corresponding to the serial number is correct.

[0008] Furthermore, step S1 includes the following steps: S101. Check the installation, power connection, physical connection between devices, power supply, and basic device functions of the monitoring backend and protection measurement and control equipment. Basic functions include display, operation, and local communication. For protection measurement and control equipment, basic functions also include protection functions. S102. Check the software versions, software configurations, and configuration files of the monitoring backend and protection measurement and control equipment; build a temporary communication network, simulate the dispatch channel environment, and test the communication functions of the equipment in the network, including data upload, download, and synchronization using the network; S103. Simulate the actual operation scenario of the monitoring backend and protection measurement and control equipment to test whether the linkage function between the monitoring backend and protection measurement and control equipment is normal; check the logging function of the equipment to verify the accuracy, timeliness and completeness of the log alarm information; S104. Simulate equipment failure or data loss to verify the availability of backup data and the correctness of the recovery process; perform security performance tests on the equipment, including the security of firewalls, intrusion detection, and virus protection.

[0009] Furthermore, step S2 specifically includes the following steps: S201. Collect SCD files and substation monitoring background acceptance point table files, and confirm their completeness and correctness; S202. Import the SCD file and the substation monitoring background acceptance point table file respectively. The system automatically parses the SCD file, extracts information, and associates it with the monitoring background acceptance point table file. S203. Generate a specific interval signal identifier based on the extracted compartment name and signal name, check its legitimacy and uniqueness, and compare the generated interval signal identifiers with the records in the acceptance point table file one by one to ensure that they match and are correct; S204: Integrate the parsed information and the generated interval signal identifier into the system database.

[0010] Furthermore, step S3 includes the following steps: S301. Confirm the interface type of the monitoring backend station control layer network, prepare the corresponding network cable or optical fiber cable and conversion connector, and confirm that the network equipment is working properly and the port is idle; S302. Configure network parameters on the system side that match the monitoring backend station control layer network, including IP address, subnet mask, and gateway; if the system supports VLAN division, configure the corresponding VLAN parameters according to the requirements of the monitoring backend, and test the network connectivity between the system and the monitoring backend to ensure there are no packet loss or delay issues; S303, adjusting the system time to avoid conflicts with any tasks or applications; S304. Follow network security regulations and operating procedures when accessing the system and adjusting the time, and set access control and security isolation measures on the system side and the monitoring background side respectively to ensure the security and reliability of data transmission; after the system access and time adjustment are completed, conduct testing and verification to ensure that the system can communicate normally with the monitoring background and that the time is set correctly, send test signals or data to the monitoring background, observe the reception status and check whether the timestamp is correct, and record and document the entire access and adjustment process.

[0011] Furthermore, step S4 includes the following steps: S401, log in to the system and navigate to the signal management configuration interface; S402, according to the monitoring background acceptance point table file, identifying the relevant signals that need to be initialized to the "point" state; S403, select the signals that need to be initialized one by one, and for each signal, use the control function or command provided by the system to set its status to "point"; S404. After initialization is completed, check the signal management configuration interface again to confirm that all selected signals have been correctly switched to the "point" state; S405. Referring to the sequence of numbers in the monitoring background acceptance point table file, write or prepare a simulation trigger script or program. The script or program supports executing the "close" and "open" operations on each signal in sequence according to the preset sequence. S406. Run the simulation trigger program. The program will simulate the functions of the station control layer equipment and send control commands to each signal in turn. For each signal, first send the "close" command and then send the "open" command. The system needs to record the sequence number, interval signal, send value "close" or "open" and SOE information of each trigger, and save all sending records to the system database or specified file.

[0012] Furthermore, step S5 includes the following steps: S501, referring to the record of the analog trigger operation, determining the start time of each signal analog trigger; S502. Log in to the monitoring backend system and enter the log management or data export interface to set the log extraction parameters. The log extraction parameters include: time range: based on the simulation trigger start time determined in S501, set an appropriate time range to cover all relevant signals; data type: select the monitoring backend screen log as the extraction object; monitoring backend screen log format; S503, according to the parameters set in S502, the log extraction operation is performed, and the monitoring background system will automatically retrieve and extract the corresponding monitoring background screen log from the database according to the set time range and data type; S504. Verify, save, and back up log data: Check the extracted log data and verify its integrity, including the sequence number, interval signal, received value, and SOE information field, ensure that the timestamp of the log data matches the start time of the simulation trigger, and that there is no missing or duplicate data, and save the verified log data to a local file or system database.

[0013] Furthermore, step S6 includes the following steps: S601, verify the integrity and accuracy of the monitoring background screen log file exported by the monitoring background, and then import it into the system; S602, using SOE as a keyword, matches the imported monitoring background screen log record with the sending record saved when simulating the triggering of the station control layer signal. During the matching process, check whether the sequence number, interval signal, and sending / receiving value of the sending and receiving records are consistent; S603. For each pair of successfully matched send and receive records, generate a combined record; the combined record includes: a sequence number, a unique identifier for each record, a send interval signal, the interval signal used when triggering, a send value, the signal value sent when triggering (closed or open), a receive interval signal, the interval signal received by the monitoring background, and a receive value, the signal value received by the monitoring background (closed or open); S604: Modeling the received value, and converting the received value into a corresponding standardized state description according to the provided modeling mapping relationship; S605. Verify the generated combined records to ensure that the sending and receiving values ​​and interval signals of all records are correctly matched, and check whether the received values ​​after the normalization process accurately reflect the actual state changes of the signals. Store the verified combined records and the received values ​​after the normalization process in the system.

[0014] Furthermore, step S7 includes the following steps: S701, import the monitoring background screen log file exported from the monitoring background, use the SOE in the log as the keyword, match the sending record saved in step S6 with the receiving record exported from the monitoring background, for each sending record, there is a corresponding receiving record, and the receiving record timestamp is consistent with the SOE; S702. After the match is successful, the generated combination record contains the following information: sequence number, sending interval signal, interval signal used when triggering, sending value, signal value "closed" or "opened" sent when triggering, receiving interval signal, interval signal received by the monitoring background, receiving value, signal value "closed" or "opened" received by the monitoring background; S703: Convert the received value into a corresponding standardized state description according to the provided modeled mapping relationship, ensuring that the converted state description accurately reflects the actual signal change; S704. For each combination record, perform the following verification and review: Ensure that the sequence number, send interval signal, send value, receive interval signal, and receive value fields are correctly filled in; check whether the "send value" and "receive value" are consistent to ensure that no signal is lost or mistransmitted; check whether the "send interval signal" and "receive interval signal" have the same meaning to ensure that the signal has not been incorrectly parsed or modified during transmission; for each sequence number, ensure that there are at least two records, where the "receive value" corresponds to the "open" and "closed" states respectively, to verify the integrity and correctness of the signal; S705. Traverse each serial number in the monitoring background acceptance point table and check whether the combined record generated in step S704 meets the following conditions: there are two records containing the serial number, the "received value" in these two records corresponds to the "open" and "closed" states respectively, the "send value" in each record is consistent with the "received value", and the "send interval signal" and "receive interval signal" in each record have the same meaning; if all the above conditions are met, it is determined that the monitoring background screen signal configuration corresponding to the serial number is correct; S706: All verified combination records and standardized received values ​​are stored in the system.

[0015] In the second aspect, the present invention provides a substation offline verification monitoring background remote signaling alarm system, which realizes offline verification of remote signaling alarms on the monitoring background screen through automated means, thereby ensuring the safe and stable operation of the substation. The system is composed of multiple modules, including: a file import and parsing module, a system networking and time calibration module, a signal initialization and simulation triggering module, a background log extraction module, a log analysis and standardization module, and a signal configuration verification module. The modules cooperate with each other to jointly complete the substation offline verification monitoring background remote signaling alarm method; wherein, the file import and parsing module is responsible for importing SCD files and monitoring background acceptance point table files, and parsing these files to extract key information, such as serial number, compartment name, signal name, etc. The module passes the parsed information to the signal initialization and simulation triggering module and the signal configuration verification module as the basic data for subsequent operations. The system networking and time calibration module is responsible for directly connecting the system to the station control layer network of the monitoring background, and adjusting the system time setting to ensure that the system time is ahead of the current actual time to reduce interference. The module is connected to the signal initialization and simulation triggering module to provide it with network connection and accurate time reference. The module is responsible for initializing all relevant signals to the preset "point" state, simulating the functions of the station control layer equipment, triggering signals in turn and recording relevant information. The module receives the information passed by the file import and parsing module as the basis for triggering signals and records; at the same time, it is connected to the background log extraction module to extract the corresponding log after the simulation trigger. The background log extraction module is used to extract the monitoring background screen log of the corresponding time period from the monitoring background according to the start time of the simulation trigger signal. The module is connected to the signal initialization and simulation trigger module and receives the start time information provided by it; at the same time, the extracted log is passed to the log analysis and standardization module. The log analysis and standardization module is used to match the extracted monitoring background screen log with the simulation trigger record, generate a combination record, and standardize the received value. The module receives the log data passed by the background log extraction module for analysis and standardization; the processed data will be passed to the signal configuration verification module. The signal configuration verification module is used to check each combination record to ensure that specific conditions are met, thereby judging the correctness of the monitoring background screen signal configuration. The module receives the combination record data passed by the log analysis and standardization module for verification and judgment;At the same time, the verification results are output to the system user or related interface for display. The file import and parsing module passes the parsed information to the signal initialization and simulation trigger module and the signal configuration verification module. The system networking and time calibration module provides network connection and accurate time reference for the signal initialization and simulation trigger module. After the signal initialization and simulation trigger module triggers the signal and records the relevant information, it passes the start time information to the background log extraction module. The background log extraction module extracts the log from the monitoring background according to the start time, and passes the log data to the log analysis and standardization module. The log analysis and standardization module analyzes and standardizes the log data, and passes the processed data to the signal configuration verification module. The signal configuration verification module verifies and judges according to the combined recorded data, and outputs the verification results to the system user or related interface for display. The above technical solution provided by the embodiment of the present invention has the following advantages compared with the prior art: This application significantly reduces the tedious process of manual one-by-one inspection and verification through a preset automated verification process, thereby improving the efficiency of the entire verification process. In particular, as the scale of the power grid continues to expand, automated verification can better demonstrate its high efficiency. Since the entire verification process is automated, the impact of human factors such as personal experience and concentration on the verification results is reduced, thereby reducing the possibility of misjudgment or omission of important information and improving the accuracy of the verification results. This method performs pre-testing and debugging before the dispatching channel is officially connected, and reduces the impact of interference signals by adjusting the system time settings during the verification process, thereby ensuring the real-time nature of the verification process and the reliability of the verification results. Through the preset verification rules and algorithms, the unification and standardization of the verification methods are achieved. , which improves the consistency and comparability of the verification results and provides convenience for later maintenance. Since the method can be verified in an offline state, once an emergency alarm and abnormal state are found during the operation of the power grid, it can be quickly responded and processed according to the verification results, thereby improving the stability and security of the power grid. Through automated verification, the waste of human resources is reduced, so that personnel can focus more on other important work and optimize resource allocation. In summary, the proposed substation offline verification monitoring background remote signaling alarm method, through an automated and standardized verification process, significantly improves the verification efficiency, accuracy and real-time performance, reduces the possibility of human error, optimizes resource allocation, and provides a strong guarantee for the safe, stable and efficient operation of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 A flowchart of a substation offline verification monitoring and background remote signaling alarm method provided by an embodiment of the present invention; Figure 2 A flowchart of pre-testing and debugging the substation monitoring background and protection and control equipment provided by an embodiment of the present invention; Figure 3 The embodiment of the present invention provides a flow chart for importing an SCD file and a substation monitoring background acceptance point table file into a system, parsing them, extracting information, and generating a specific interval signal identifier based on the extracted information; Figure 4 A flowchart of an embodiment of the present invention providing a method of directly connecting the system to the station control layer network of the substation monitoring backend and adjusting the system time setting to a time faster than the current actual time; Figure 5 A flowchart of an embodiment of the present invention that initializes all relevant signals to a preset "point" state, then simulates the function of the station control layer equipment, triggers the signals in sequence according to the sequence number, and records the information when the signals are triggered; Figure 6 A flowchart of extracting the monitoring background screen log of the corresponding time period from the monitoring background according to the start time of the simulation trigger signal provided by the embodiment of the present invention; Figure 7 A diagram illustrating generating a combined record and normalizing received values ​​according to an embodiment of the present invention; Figure 8 The conditions and judgment flow chart for determining whether the corresponding monitoring background screen signal configuration is correct provided by the embodiment of the present invention; Figure 9 A schematic diagram of a substation offline verification and monitoring background remote signaling alarm system provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0020] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0021] Example 1 like Figure 1 As shown, the present invention provides a substation offline verification monitoring background remote signaling alarm method, the detailed process of the present invention includes: S1. Before the dispatch channel is officially connected, pre-test and debug the substation monitoring background and protection measurement and control equipment to ensure that all equipment is in the set working state; like Figure 2 As shown, step S1 specifically includes the following steps: S101. Equipment preparation and hardware testing, including: checking the installation of monitoring backend and protection measurement and control equipment to ensure that all monitoring backend and protection measurement and control equipment are correctly installed and the power connection is correct; comprehensively checking the physical connections between devices, including network cables, optical fibers, and serial port cables, to ensure that there are no open circuits, short circuits, or poor contact; verifying the power supply of the equipment to ensure that the power supply is stable and meets the equipment's working requirements; conducting stand-alone testing of the equipment to verify whether basic functions are normal, including: display, operation, local communication, and for protection measurement and control equipment, the basic functions also include protection functions; S102, software configuration and network communication testing, including: checking whether the software versions of the monitoring background and protection and control equipment match, and upgrading or patching as needed; verifying the software configuration of the equipment, including IP address, communication parameters, and protection settings, to ensure that the configuration is correct; importing and verifying relevant configuration files, such as SCD files and substation monitoring background acceptance point table files, to ensure that the configuration files are correct; setting up a temporary communication network, simulating the dispatch channel environment, and testing the communication functions of the equipment in the network, including using the network to upload, download, and synchronize data; S103, functional linkage and log alarm testing, including: simulating actual operating scenarios of the monitoring backend and protection and measurement and control equipment to test whether the linkage function between the monitoring backend and protection and measurement and control equipment is normal, including the sending and receiving of alarm information; checking the equipment's logging function to verify the accuracy, timeliness, and completeness of the log alarm information to ensure that relevant personnel can be notified in a timely manner when a fault occurs; S104. Backup, recovery, and security performance testing, including: testing the backup and recovery functions of the device, simulating device failures or data loss, and verifying the availability of backup data and the correctness of the recovery process; conducting security performance testing on the device, including testing the security of firewalls, intrusion detection, and virus protection, to ensure that the device has sufficient security protection capabilities; Through these tests and verifications, we ensured that the monitoring backend and protection measurement and control equipment were in optimal working condition before official commissioning. This not only improved system reliability but also provided a solid foundation for subsequent automated verification. Specifically, through hardware testing, software configuration and network communication testing, functional linkage and log alarm testing, and backup, recovery, and security performance testing, we fully ensured the functionality, stability, and security of the equipment.

[0022] S2. Import the SCD file and the substation monitoring background acceptance point table file into the system, parse them, extract information such as serial number, compartment name, and signal name, and generate a specific compartment signal identifier based on the extracted information; like Figure 3 As shown, step S2 specifically includes the following steps: S201, configuration file preparation and verification, including: collecting SCD files and substation monitoring background acceptance point table files, and confirming their completeness and correctness; S202, configuration file parsing and information extraction, including: selecting the import function in the system, importing the SCD file and the substation monitoring background acceptance point table file respectively, the system automatically parses the SCD file, extracts information such as serial number, compartment name, signal name, and associates it with the monitoring background acceptance point table file; S203, interval signal identifier generation and verification, including: generating a specific interval signal identifier, i.e., the interval name and signal name, based on the extracted compartment name and signal name, checking their legitimacy and uniqueness, and comparing the generated interval signal identifiers with the records in the acceptance point table file one by one to ensure that they match and are correct; S204, data integration and storage, including: integrating the parsed information, such as serial number, compartment name, signal name, and generated compartment signal identifier into the system database; If an error occurs during file parsing or interval signal identifier generation, the system should capture and record the error information for subsequent investigation and processing. After the operation is completed, a prompt or notification will be given to inform the user that the file import, parsing, interval signal identifier generation and other steps have been completed.

[0023] Through automated and standardized operations, SCD files and monitoring backend acceptance point tables are imported into the system, key information is extracted, and interval signal identifiers are generated. Furthermore, data integration and storage ensure the accuracy and reliability of this information. During operation, the system also provides error handling and completion notifications to facilitate user management and maintenance.

[0024] Ensure that the imported SCD file and monitoring background acceptance point table file are compatible with the current system version. At the same time, after extracting key information, compare them with the original file or known correct data set to ensure that the extracted information is accurate. In addition to checking the legitimacy and uniqueness of the interval signal identifiers, they should also be ensured to comply with the predefined format standards. It should also be checked whether there are duplicate interval signal identifiers or whether there are conflicts with other signal identifiers in the existing system. Before integrating the data, clean the data to remove duplicate, invalid or erroneous data to ensure that the database can efficiently handle large amounts of data, including optimization measures such as indexing and partitioning.

[0025] Before importing SCD files and monitoring backend acceptance point table files, the system first checks the file version information to ensure compatibility with the current system version. This version compatibility check prevents parsing errors or functional anomalies caused by version mismatches, ensuring smooth subsequent operations. The system selects the import function to import the SCD file and monitoring backend acceptance point table file, automatically parsing these files and extracting information such as serial numbers, compartment names, and signal names. After extracting the information, the system compares it with the original file or a known valid dataset to ensure accuracy. This comparison and verification further improves data accuracy and reduces issues caused by parsing errors or data loss. The system generates specific interval signal identifiers based on the extracted information. After generating the interval signal identifiers, the system performs multiple checks to verify their legality, i.e., compliance with predefined naming rules or standards. The system also checks for uniqueness to avoid duplication or conflicts. In addition to legality and uniqueness, the system also ensures that the generated interval signal identifiers conform to predefined formatting standards. This helps maintain data consistency and readability, facilitating subsequent processing and analysis. The system also checks whether the generated interval signal identifiers conflict with other signal identifiers in the existing system. This prevents functional anomalies or data errors caused by signal identifier conflicts. Before data integration, the system performs data cleansing to remove duplicate, invalid, or malformed data. Data cleansing improves data quality and reduces the impact of invalid data on system performance. Furthermore, the system implements a series of optimization measures, such as indexing and partitioning, to improve the database's efficiency in processing large amounts of data. These optimization measures ensure the system can efficiently store, query, and analyze data, meeting real-time monitoring and alerting requirements. Throughout the entire process, if the system encounters any errors or anomalies, such as file parsing errors, information comparison inconsistencies, or interval signal identifier conflicts, the system captures and logs these error messages. These error messages help users or administrators quickly locate and troubleshoot the issues. When all operations are completed, the system provides a prompt or notification to inform the user that the file import, information extraction, interval signal identifier generation, and data integration steps have been completed. In summary, these multiple verification and optimization measures ensure the accuracy and compatibility of the imported SCD file and the monitoring backend acceptance point table file, improving data quality and system performance. At the same time, through error handling and completion notification functions, the system also provides better user experience and maintenance convenience.

[0026] S3. Connect the system directly to the station control layer network of the substation monitoring backend, and adjust the system time setting to be 3 hours faster than the current actual time, so as to reduce the impact of possible interference signals on the subsequent verification process; like Figure 4As shown, step S3 specifically includes the following steps: S301. Network access preparation: Confirm the interface type of the monitoring backend station control layer network, such as Ethernet port or fiber optic interface, prepare the corresponding network cable or fiber optic cable and conversion connector, and confirm that the network equipment is working properly and the port is idle. The network equipment is such as a network switch or router; S302, system network configuration: Configure network parameters on the system side that match the monitoring backend station control layer network, including IP address, subnet mask, and gateway; if the system supports VLAN division, configure the corresponding VLAN parameters according to the requirements of the monitoring backend, and test the network connectivity between the system and the monitoring backend to ensure there are no packet loss or delay issues; S303. Adjust the system time to avoid conflicts with any tasks or applications: Enter the system time setting interface and set the system time ahead of the current actual time, such as 3 hours ahead, to ensure that no interference signals are received during subsequent tests. Confirm the accuracy of the system time and synchronize it with the time of the monitoring background. Evaluate the impact of the time adjustment on other system functions or applications to ensure that it does not interfere with or conflict with other running tasks or applications. If the system requires time synchronization with other devices or systems, temporarily disable or adjust the time synchronization settings to avoid time conflicts. S304. Security considerations and test verification: When performing system access and time adjustment, ensure that relevant network security regulations and operating procedures are followed to avoid security risks to the monitoring background or the entire network. If necessary, set access control and security isolation measures on the system side and the monitoring background side respectively to ensure the security and reliability of data transmission. After the system access and time adjustment are completed, test and verify to ensure that the system can communicate normally with the monitoring background and that the time setting is correct. Send some test signals or data to the monitoring background, observe the reception status and check whether the timestamp is correct. Record and document the entire access and adjustment process in detail, including the equipment, cables, configuration parameters, time settings used, and record any possible problems, failures or abnormal situations, as well as the solutions taken and the results.

[0027] Through detailed network access preparation, system network configuration, system time adjustment and evaluation, as well as security considerations and test verification steps, it is ensured that the system can be safely, stably and accurately connected to the monitoring background network and work in conjunction with other systems or devices.

[0028] S4. Initialize all relevant signals to the preset "open" state. Then, simulate the function of the station control layer equipment and trigger the signals in sequence according to the sequence number, first performing the "close" operation and then the "open" operation, and record the sequence number, interval signal, transmission value and SOE information of each trigger; like Figure 5 As shown, step S4 specifically includes the following steps: S401. Log in to the system and navigate to the signal management configuration interface: Use an administrator account to log in to the system and navigate to the signal management configuration interface. The signal management configuration interface allows the administrator to view, edit, and control the signals in the system; S402, determining signals that need to be initialized: identifying relevant signals that need to be initialized to the "point" state based on the monitoring background acceptance point table file. These signals may be scattered in multiple compartments or different devices; S403. Initialize the signal to the "point" state: Select the signals to be initialized one by one. For each signal, use the control function or command provided by the system to set its state to "point". The system provides a graphical interface to simplify the operation; S404. Verify signal initialization status: After initialization is complete, check the signal management configuration interface again to confirm that all selected signals have been correctly switched to the "off" state. If further verification is required, use a monitoring tool to check the actual status of the signal. S405. Prepare a simulation trigger script or program: Based on the sequence of numbers in the monitoring background acceptance point table file, write or prepare a simulation trigger script or program. The script or program supports executing "close" and "open" operations on each signal in a preset order. S406. Execute simulated triggering operation and record information: Run the simulated triggering program, which will simulate the functions of the station control layer equipment and send control commands to each signal in sequence. For each signal, the "close" command is sent first, followed by the "open" command. The system needs to record the sequence number, interval signal, sent value "close" or "open", and SOE information of each trigger, and securely save all sending records to the system database or designated file to ensure data accessibility and security. By following these steps, administrators can ensure that signals in the system are correctly initialized and tested. This not only improves system stability and reliability, but also provides strong support for subsequent troubleshooting and system optimization.

[0029] S5. According to the start time of the analog trigger signal, the monitoring background screen log of the corresponding time period is extracted from the monitoring background. The content of the monitoring background screen log includes the sequence number, interval signal, received value and SOE information; like Figure 6 As shown, step S5 specifically includes the following steps: S501, determine the start time of the simulation trigger signal: refer to the record of the simulation trigger operation to determine the start time of each signal simulation trigger; in the specific implementation process, the time information is obtained by viewing the execution log of the simulation trigger script or the system log; S502. Set the monitoring background screen log extraction parameters: Log in to the monitoring background system and enter the log management or data export interface to set the extraction parameters. These parameters should include: Time range: Based on the simulation trigger start time determined in S501, set an appropriate time range to cover all relevant signals; Data type: Select the monitoring background screen log as the extraction object; Format: Select a format suitable for subsequent analysis, such as txt or CSV, to ensure that the set parameters can fully cover all simulation triggered signals; S503, perform log extraction operation: according to the parameters set in S502, perform log extraction operation, the monitoring background system will automatically retrieve and extract the corresponding monitoring background screen log from the database according to the set time range and data type; S504. Verify, save, and back up log data: Carefully check the extracted log data to verify its integrity, including key fields such as sequence number, interval signal, received value, and SOE information. Ensure that the timestamp of the log data matches the start time of the simulation trigger and that there is no missing or duplicate data. Save the verified log data to a local file or system database to ensure data security and accessibility. Back up the log data as needed to prevent data loss or damage. S505. Prepare for subsequent analysis and verification: The extracted log data will be used for subsequent analysis and verification, such as comparison with transmission records, verification of signal status, etc. Ensuring the accuracy and completeness of the log data is crucial for the smooth progress of subsequent work.

[0030] The working principle of the entire step S5 reflects the refined management of the simulation trigger monitoring background screen log. From determining the start time, setting the extraction parameters, executing the extraction operation to verifying, saving and backing up the data, each step is aimed at ensuring that the final extracted log data can meet the needs of subsequent analysis and verification work.

[0031] S6. Import the extracted monitoring background screen log into the system and match it with the simulation trigger record according to the consistency of SOE information to generate a combined record containing the sequence number, sending interval signal, sending value, receiving interval signal and receiving value. At the same time, the received value is standardized and converted into a unified state change description that is easy to understand and compare; like Figure 7 As shown, step S6 specifically includes the following steps: S601. The monitoring background screen log file exported by the monitoring background is in txt or CSV format, and the integrity and accuracy of the log file are verified to ensure that there are no missing or erroneous records; and then the log file is imported into the system; S602, record matching: Using SOE as the keyword, match the imported monitoring background screen log records with the sending records saved when simulating the triggering of the station control layer signal, ensuring that each sending record can find the corresponding receiving record. During the matching process, carefully check whether the sequence number, interval signal, and sending / receiving value of the sending and receiving records are consistent; S603. Generate a combination record: For each pair of successfully matched send and receive records, generate a combination record containing the following information: a sequence number, a unique identifier for each record, a send interval signal, an interval signal used when triggering, a send value, a signal value sent when triggering (closed or open), a receive interval signal, an interval signal received by the monitoring background, and a receive value, a signal value received by the monitoring background (closed or open); S604, Standardization of Received Values: Model the received values ​​and convert them into a unified description of state changes for easier understanding and comparison. Based on the provided modeled mapping relationships, such as "close" corresponding to "action" and "break" corresponding to "reset," the received values ​​are converted into corresponding standardized state descriptions. S605. Verification, review, and record storage: Verify the generated combined records to ensure that the sending and receiving values ​​and interval signals of all records are correctly matched. Review whether the received values ​​after standardization accurately reflect the actual state changes of the signals. Store the verified combined records and the received values ​​after standardization in the system for subsequent analysis and use. Ensure that the stored data is safe and reliable, and back it up regularly.

[0032] The working principle of the entire S6 step reflects the refined processing and management of the monitoring background screen log. Through the steps of log import, record matching, combined record generation, received value standardization, verification and audit, it ensures the accuracy and consistency of the data, and provides reliable data support for subsequent analysis and verification work.

[0033] like Figure 8 As shown, S7, check each combination record, for each serial number in the monitoring background acceptance point table, to ensure that the following conditions are met: there are two records containing the serial number, in these two records, the "receiving value" corresponds to the "open" and "closed" states respectively, the "sending value" and "receiving value" in each record must be consistent, and the "sending interval signal" and "receiving interval signal" in each record should have the same meaning. If all the above conditions are met, it can be determined that the monitoring background screen signal configuration corresponding to the serial number is correct.

[0034] Step S7 specifically includes the following steps: S701. Import and match logs: Import the monitoring background screen log file exported from the monitoring background, use the SOE in the log as the keyword, and match the sending record saved in step S6 with the receiving record exported from the monitoring background. For each sending record, a corresponding receiving record must be found, and their timestamps and SOEs should be consistent; S702. Generate combination record: After a successful match, generate a combination record. The combination record includes: a sequence number (corresponding to the sequence number in the monitoring backend acceptance point table), a sending interval signal, the interval signal used when triggering, a sending value, the signal value sent when triggering (closed or open), a receiving interval signal, the interval signal received by the monitoring backend, and a receiving value, the signal value received by the monitoring backend (closed or open); S703, standardization of received values: Based on the provided model mapping relationship, such as "close" corresponding to "action" and "break" corresponding to "reset", the received values ​​are converted into corresponding standardized state descriptions to ensure that the converted state descriptions accurately reflect the actual signal changes; S704. Verification and review of combination records: For each combination record, perform the following verification and review: Ensure that the fields such as sequence number, sending interval signal, sending value, receiving interval signal, and receiving value are filled in correctly; Check whether the "sent value" and "received value" are consistent to ensure that there is no signal loss or mistransmission; Check that the "send interval signal" and the "receive interval signal" have the same meaning and ensure that the signal is not incorrectly parsed or modified during transmission; For each sequence number, ensure that there are at least two records, where the "received value" corresponds to the "open" and "closed" states respectively, to verify the integrity and correctness of the signal; S705. Check the correctness of the monitoring background signal configuration: traverse each serial number in the monitoring background acceptance point table and check whether the combined record generated in step S704 meets the following conditions: there are two records containing the serial number, the "received value" in these two records corresponds to the "open" and "closed" states respectively, the "send value" and "received value" in each record must be consistent, and the "send interval signal" and "receive interval signal" in each record should have the same meaning. If all the above conditions are met, it can be determined that the monitoring background screen signal configuration corresponding to the serial number is correct; S706. Record storage and backup: All verified combination records and standardized received values ​​are stored in the system for subsequent analysis and use, ensuring that the stored data is safe and reliable, and backed up regularly.

[0035] Step S7 focuses on the import, matching, combination record generation, received value standardization processing, verification and review of the monitoring background screen log, and the judgment of the correctness of the monitoring background signal configuration.

[0036] The invention proposes a substation offline verification monitoring backend remote signal alarm method. Before the dispatch channel is officially connected, the monitoring backend and protection measurement and control equipment are pre-tested and debugged to ensure that all equipment is in normal working condition. This is the basis of the entire verification process and provides a reliable equipment environment for subsequent signal simulation and verification. By importing the SCD file and the monitoring backend acceptance point table file and parsing them, information such as serial number, compartment name, signal name is extracted, and a specific interval signal identifier is generated, which provides key data support for subsequent simulation triggering and signal matching; the system time setting is adjusted to be 3 hours faster than the current actual time to reduce the impact of possible interference signals on the subsequent verification process; at the same time, all relevant signals are initialized to the preset "minute" state to provide a clear starting state for subsequent signal simulation, simulate the function of the station control layer equipment, trigger the signal in sequence according to the serial number, and record the serial number, interval signal, send value and SOE information at each trigger. This step simulates the triggering process of the signal in actual operation and provides simulation data for subsequent log matching. According to the start time of the simulated trigger signal, the monitoring backend of the corresponding time period is extracted from the monitoring backend. The system then generates a combined record containing the sequence number, transmission interval signal, transmission value, reception interval signal, and reception value. The received values ​​are then standardized and converted into a uniform, easily understandable and comparable description of state changes. For each sequence number in the monitoring backend acceptance point table, the system checks whether two records exist containing that sequence number, with the "received value" in these two records corresponding to the "open" and "closed" states, respectively. Furthermore, the system ensures that the "transmitted value" and "received value" in each record are consistent, and that the "transmitted interval signal" and "received interval signal" have the same meaning. If all conditions are met, the monitoring backend screen signal configuration corresponding to that sequence number is correct. Overall, this method for offline verification of monitoring backend telesignaling alarms for substations involves pre-testing and debugging before the dispatch channel is officially connected. This method uses simulated triggering and log matching to perform offline verification of the monitoring backend signal configuration, thereby ensuring the accuracy and reliability of telesignaling alarms during actual operation. This method effectively improves the accuracy and stability of substation signal configuration through systematic process design and strict verification conditions.

[0037] Example 2 like Figure 9As shown, the present invention provides a substation offline verification monitoring background remote signal alarm system, which uses automated means to achieve offline verification of remote signal alarms on the monitoring background screen, thereby ensuring the safe and stable operation of the substation. The system consists of multiple modules, including: The file import and parsing module, system networking and time calibration module, signal initialization and simulation trigger module, background log extraction module, log analysis and standardization module, and signal configuration verification module work together to complete the offline verification task of monitoring background telesignaling alarms.

[0038] Among them, the file import and parsing module is responsible for importing SCD files and monitoring background acceptance point table files, and parsing these files to extract information such as serial number, compartment name, and signal name. The file import and parsing module passes the parsed information to the signal initialization and simulation trigger module and the signal configuration verification module as the basic data for subsequent operations; The system networking and time calibration module is responsible for directly connecting the system to the station control layer network of the monitoring background and adjusting the system time settings to ensure that the system time is ahead of the current actual time to reduce interference. The system networking and time calibration module is connected to the signal initialization and analog trigger module to provide it with network connection and accurate time reference; The signal initialization and simulation triggering module is responsible for initializing all relevant signals to the preset "point" state, simulating the functions of the station control layer equipment, triggering signals in sequence and recording relevant information. The signal initialization and simulation triggering module receives the information transmitted by the file import and parsing module as the basis for triggering signals and recording; at the same time, the signal initialization and simulation triggering module is connected to the background log extraction module to extract the corresponding log after the simulation trigger; The background log extraction module is used to extract the monitoring background screen log of the corresponding time period from the monitoring background according to the start time of the simulation trigger signal. The background log extraction module is connected to the signal initialization and simulation trigger module to receive the start time information provided by it; at the same time, the background log extraction module passes the extracted log to the log analysis and standardization module; The log analysis and standardization module is used to match the extracted monitoring background screen logs with the simulation trigger records, generate combined records, and standardize the received values. The log analysis and standardization module receives the log data transmitted by the background log extraction module, analyzes and standardizes it; the processed data will be passed to the signal configuration verification module; The signal configuration verification module is used to check each combination record to ensure that specific conditions are met, so as to determine the correctness of the signal configuration of the monitoring background screen. The signal configuration verification module receives the combination record data transmitted by the log analysis and standardization module for verification and judgment; at the same time, the verification results are output to the system user or related interface for display.

[0039] The file import and parsing module passes the parsed information to the signal initialization and simulation trigger module and the signal configuration verification module. The system networking and time calibration module provides network connection and accurate time reference for the signal initialization and simulation trigger module. After the signal initialization and simulation trigger module triggers the signal and records relevant information, it passes the start time information to the background log extraction module. The background log extraction module extracts the log from the monitoring background according to the start time, and passes the log data to the log analysis and standardization module. The log analysis and standardization module analyzes and standardizes the log data, and passes the processed data to the signal configuration verification module. The signal configuration verification module verifies and judges based on the combined recorded data, and outputs the verification results to the system user or the relevant interface for display.

[0040] The file import and parsing module first imports and parses relevant files to extract key information. The system networking and time calibration module ensures that the system is connected and the time is calibrated. The signal initialization and simulation trigger module initializes the signal and simulates the trigger, records the relevant information and passes it to the background log extraction module. The background log extraction module extracts the log from the monitoring background according to the start time and passes it to the log analysis and standardization module. The log analysis and standardization module matches, analyzes and standardizes the log, and passes the result to the signal configuration verification module. The signal configuration verification module verifies and judges based on the combined recorded data, and outputs the verification result to the system user or the relevant interface for display.

[0041] The system uses automated means to achieve offline verification of remote signal alarms on the monitoring background screen, improving the efficiency and accuracy of verification and reducing errors and interference in human operations. At the same time, the system can promptly detect and correct errors in the monitoring background signal configuration to ensure the safe and stable operation of the substation. In addition, the system is flexible and scalable and can be customized and expanded according to actual needs.

[0042] In the embodiments provided by the present invention, it should be understood that the disclosed structures and methods can be implemented in other ways. For example, the structural embodiments described above are merely illustrative. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, structure or unit, which can be electrical, mechanical or other forms.

[0043] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0044] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0045] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A remote signaling alarm method for off-line verification and monitoring of a substation, characterized in that: include: S1, before the dispatch channel is officially connected, pre-test and debug the substation monitoring background and protection measurement and control equipment to ensure that all equipment is in the set working state; S2, import the SCD file and the substation monitoring background acceptance point table file into the system, parse them, extract information, and generate a specific interval signal identifier based on the extracted information; S3. Connect the system directly to the station control layer network of the substation monitoring backend, and adjust the system time setting to a time that is faster than the current actual time; S4. Initialize all relevant signals to the preset "open" state, simulate the functions of the station control layer equipment, trigger the signals in sequence according to the sequence number, first perform the "close" operation and then the "open" operation, and record the sequence number, interval signal, transmission value and SOE information of each trigger; S5. According to the start time of the analog trigger signal, the monitoring background screen log of the corresponding time period is extracted from the monitoring background. The content of the monitoring background screen log includes the sequence number, interval signal, received value and SOE information; S6. Import the extracted monitoring background screen log into the system and match it with the simulation trigger record according to the consistency of SOE information to generate a combined record containing the sequence number, sending interval signal, sending value, receiving interval signal and receiving value, and perform standardization at the same time; S7. Check each combination record and ensure that the following conditions are met for each serial number in the monitoring background acceptance point table: if there are two records containing any serial number, in these two records, the "received value" corresponds to the "open" and "closed" states respectively; the "send value" in each record is consistent with the "received value"; the "send interval signal" and the "receive interval signal" in each record have the same meaning; if all the above conditions are met, it is determined that the monitoring background screen signal configuration corresponding to the serial number is correct.

2. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S1 includes the following steps: S101. Check the installation, power connection, physical connection between devices, power supply, and basic device functions of the monitoring backend and protection measurement and control equipment. Basic functions include display, operation, and local communication. For protection measurement and control equipment, basic functions also include protection functions. S102. Check the software versions, software configurations, and configuration files of the monitoring backend and protection measurement and control equipment; build a temporary communication network, simulate the dispatch channel environment, and test the communication functions of the equipment in the network, including data upload, download, and synchronization using the network; S103. Simulate the actual operation scenario of the monitoring backend and protection measurement and control equipment to test whether the linkage function between the monitoring backend and protection measurement and control equipment is normal; check the logging function of the equipment to verify the accuracy, timeliness and completeness of the log alarm information; S104. Simulate equipment failure or data loss to verify the availability of backup data and the correctness of the recovery process; perform security performance tests on the equipment, including the security of firewalls, intrusion detection, and virus protection.

3. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S2 specifically includes the following steps: S201. Collect SCD files and substation monitoring background acceptance point table files, and confirm their completeness and correctness; S202. Import the SCD file and the substation monitoring background acceptance point table file respectively. The system automatically parses the SCD file, extracts information, and associates it with the monitoring background acceptance point table file. S203. Generate a specific interval signal identifier based on the extracted compartment name and signal name, check its legitimacy and uniqueness, and compare the generated interval signal identifiers with the records in the acceptance point table file one by one to ensure that they match and are correct; S204: Integrate the parsed information and the generated interval signal identifier into the system database.

4. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S3 includes the following steps: S301. Confirm the interface type of the monitoring backend station control layer network, prepare the corresponding network cable or optical fiber cable and conversion connector, and confirm that the network equipment is working properly and the port is idle; S302. Configure network parameters on the system side that match the monitoring backend station control layer network, including IP address, subnet mask, and gateway; if the system supports VLAN division, configure the corresponding VLAN parameters according to the requirements of the monitoring backend, and test the network connectivity between the system and the monitoring backend to ensure there are no packet loss or delay issues; S303, adjusting the system time to avoid conflicts with any tasks or applications; S304. Follow network security regulations and operating procedures when accessing the system and adjusting the time, and set access control and security isolation measures on the system side and the monitoring background side respectively to ensure the security and reliability of data transmission; after the system access and time adjustment are completed, conduct testing and verification to ensure that the system can communicate normally with the monitoring background and that the time is set correctly, send test signals or data to the monitoring background, observe the reception status and check whether the timestamp is correct, and record and document the entire access and adjustment process.

5. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S4 includes the following steps: S401, log in to the system and navigate to the signal management configuration interface; S402. Identify the relevant signals that need to be initialized to the "point" state according to the monitoring background acceptance point table file; S403, select the signals that need to be initialized one by one, and for each signal, use the control function or command provided by the system to set its status to "point"; S404. After initialization is complete, check the signal management configuration interface to confirm that all selected signals have been correctly switched to the "point" state; S405. Write or prepare a simulation trigger script or program with reference to the sequence of numbers in the monitoring background acceptance point table file. The script or program supports executing "close" and "open" operations on each signal in sequence according to the preset sequence. S406. Run the simulation trigger program to simulate the functions of the station control layer equipment, and send control commands to each signal in turn. For each signal, first send the "close" command, and then send the "open" command. The system records the sequence number, interval signal, send value "close" or "open" and SOE information of each trigger, and saves all sending records to the system database or specified file.

6. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S5 includes the following steps: S501, referring to the record of the analog trigger operation, determining the start time of each signal analog trigger; S502. Log in to the monitoring backend system and enter the log management or data export interface to set the log extraction parameters. The log extraction parameters include: time range: based on the simulation trigger start time determined in S501, set an appropriate time range to cover all relevant signals; data type: select the monitoring backend screen log as the extraction object; monitoring backend screen log format; S503, according to the log extraction parameters set in S502, the log extraction operation is performed, and the monitoring background system will automatically retrieve and extract the corresponding monitoring background screen log from the database according to the set time range and data type; S504. Check the extracted log data and verify its integrity, including the integrity of the sequence number, interval signal, received value, and SOE information field, ensure that the timestamp of the log data matches the start time of the simulation trigger, and that there is no missing or duplicate data, and save the verified log data to a local file or system database.

7. The substation offline verification monitoring background remote signaling alarm method according to any one of claim 1, characterized in that: Step S6 includes the following steps: S601, verify the integrity and accuracy of the monitoring background screen log file exported by the monitoring background, and then import it into the system; S602, using SOE as a keyword, matches the imported monitoring background screen log record with the sending record saved when simulating the triggering of the station control layer signal. During the matching process, check whether the sequence number, interval signal, and sending / receiving value of the sending and receiving records are consistent; S603. For each pair of successfully matched send and receive records, generate a combined record; the combined record includes: a sequence number, a unique identifier for each record, a send interval signal, the interval signal used when triggering, a send value, the signal value sent when triggering (closed or open), a receive interval signal, the interval signal received by the monitoring background, and a receive value, the signal value received by the monitoring background (closed or open); S604: Modeling the received value, and converting the received value into a corresponding standardized state description according to the provided modeling mapping relationship; S605. Verify the generated combined records to ensure that the sending and receiving values ​​and interval signals of all records are correctly matched, and check whether the received values ​​after the normalization process accurately reflect the actual state changes of the signals. Store the verified combined records and the received values ​​after the normalization process in the system.

8. The substation offline verification monitoring background remote signaling alarm method according to claim 1 is characterized in that: Step S7 includes the following steps: S701, import the monitoring background screen log file exported from the monitoring background, use the SOE in the log as a keyword, match the sending record saved in step S6 with the receiving record exported from the monitoring background, for each sending record, there is a corresponding receiving record, and the receiving record timestamp is consistent with the SOE; S702. After the match is successful, the generated combination record includes the following information: sequence number, sending interval signal, interval signal used when triggering, sending value, signal value "closed" or "opened" sent when triggering, receiving interval signal, interval signal received by the monitoring background, receiving value, signal value "closed" or "opened" received by the monitoring background; S703: Convert the received value into a corresponding standardized state description according to the provided modeled mapping relationship, ensuring that the converted state description accurately reflects the change of the actual signal; S704. For each combination record, perform the following verification and review: Ensure that the sequence number, send interval signal, send value, receive interval signal, and receive value fields are correctly filled in; check whether the "send value" and "receive value" are consistent to ensure that no signal is lost or mistransmitted; check whether the "send interval signal" and "receive interval signal" have the same meaning to ensure that the signal has not been incorrectly parsed or modified during transmission; for each sequence number, ensure that there are at least two records, where the "receive value" corresponds to the "open" and "closed" states respectively, to verify the integrity and correctness of the signal; S705. Traverse each serial number in the monitoring background acceptance point table and check whether the combined record generated in step S704 meets the following conditions: there are two records containing the serial number, the "received value" in these two records corresponds to the "open" and "closed" states respectively, the "send value" in each record is consistent with the "received value", and the "send interval signal" and "receive interval signal" in each record have the same meaning; if all the above conditions are met, it is determined that the monitoring background screen signal configuration corresponding to the serial number is correct; S706: All verified combination records and standardized received values ​​are stored in the system.

9. A substation offline verification monitoring background remote signaling alarm system, consisting of multiple modules, characterized by: include: The file import and parsing module, the system networking and time calibration module, the signal initialization and simulation trigger module, the background log extraction module, the log analysis and standardization module, and the signal configuration verification module cooperate with each other to jointly complete the substation offline verification monitoring background remote signaling alarm method described in any of claims 1-8; The file import and parsing module is responsible for importing configuration files: SCD files and monitoring background acceptance point table files, and parsing the configuration files to extract information. The file import and parsing module passes the parsed information to the signal initialization and simulation trigger module and the signal configuration verification module as the basic data for subsequent operations. The system networking and time calibration module is responsible for directly connecting the system to the station control layer network of the monitoring background and adjusting the system time settings to ensure that the system time is ahead of the current actual time to reduce interference. The system networking and time calibration module is connected to the signal initialization and analog trigger module to provide it with network connection and accurate time reference; The signal initialization and simulation triggering module is responsible for initializing all relevant signals to the preset "point" state, simulating the functions of the station control layer equipment, triggering signals in sequence and recording relevant information. The signal initialization and simulation triggering module receives information transmitted by the file import and parsing module as the basis for triggering signals and recording. At the same time, the signal initialization and simulation triggering module is connected to the background log extraction module to extract the corresponding log after the simulation trigger; The background log extraction module is used to extract the monitoring background screen log of the corresponding time period from the monitoring background according to the start time of the simulation trigger signal. The background log extraction module is connected to the signal initialization and simulation trigger module to receive the start time information provided by it; at the same time, the background log extraction module passes the extracted log to the log analysis and standardization module; The log analysis and standardization module is used to match the extracted monitoring background screen logs with the simulation trigger records, generate combined records, and standardize the received values. The log analysis and standardization module receives the log data transmitted by the background log extraction module, analyzes and standardizes it; the processed data will be passed to the signal configuration verification module; The signal configuration verification module is used to check each combination record to ensure that specific conditions are met, so as to determine the correctness of the signal configuration of the monitoring background screen. The signal configuration verification module receives the combination record data transmitted by the log analysis and standardization module for verification and judgment; at the same time, the verification results are output to the system user or related interface for display.

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