Method for verifying remote control function of power distribution terminal

Abstract

The invention belongs to the technical field of power distribution automation, and particularly relates to a power distribution terminal remote control function verification method which comprises a master station remote control method and a terminal implementation method. The master station remote control method comprises the following steps: A1, logging in a master station system, and verifying identity information of an administrator; a2, terminal equipment is selected, and operation authority is checked; a3, checking whether the terminal equipment information is consistent with the backup; a4, selecting an operation instruction; a5, confirming issuing; the terminal implementation method comprises the following steps: B1, receiving an operation instruction; b2, checking whether the master station information is consistent with the backup; b3, entering a remote control state, and locking the manual operation module; and B4, executing the operation instruction. By setting a two-way verification mechanism, the correctness and success rate of operation can be improved, the error risk is reduced, meanwhile, the system safety is enhanced, when one side detects that the information of the other side does not conform to the reality, the operation process is immediately interrupted, and implementation of various illegal operations and malicious intentions is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of power distribution automation, and in particular relates to a method for verifying the remote control function of a power distribution terminal. Background Art

[0002] In smart grids and automated power distribution systems, three-remote distribution terminals (those with telemetry, telesignaling, and telecontrol functions) are core devices for remote automated monitoring and control. They not only collect real-time operating data from power equipment but also enable rapid response to faults or adjustments through remote control. This reduces the need for extensive on-site inspections and operations, improves operational efficiency, automates the power system, and ensures its stability and security.

[0003] A Chinese patent application CN110994800A discloses a method for enhanced verification of remote control errors of three remote switches in a distribution network. The key points of its technical solution are: checking whether the terminal address is unique, judging whether the information of the remote signal collection point is correct, whether the equipment verifies whether the remote control point information is correct, checking whether the terminal communication parameters are correct, judging whether the naming of the switch equipment and the distribution terminal is consistent, checking whether the channel status of the distribution terminal is normal, and judging whether the equipment association verification based on historical remote control data is correct. These seven information verification steps can effectively reduce the risk of errors in remote control operations.

[0004] However, the above-mentioned and other existing technologies often have the following defects: the current remote control operation technology for distribution terminals, in order to reduce the error risk of remote control operation and improve the operation safety and success rate, usually only performs a one-way inspection and verification on the terminal equipment before operation, and the terminal equipment lacks the corresponding detection and identification function for the issuer of the operation instruction, and there is still a risk of remote control error, especially when relevant personnel remotely connect to the terminal by stealing, tampering or simulating the main station system, and the terminal equipment blindly executes, resulting in certain hidden dangers in the operational safety of the distribution system.

[0005] To this end, the present invention provides a method for verifying the remote control function of a power distribution terminal. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a method for verifying the remote control function of a power distribution terminal according to the present invention includes a master station remote control method and a terminal implementation method; The master station remote control method is used to confirm the administrator's identity information and send an operation instruction to the terminal device; the master station remote control method includes the following steps: A1. Log in to the main site system and verify the administrator's identity information; A2. Select the terminal device to be remotely controlled and check whether the administrator has the operation authority for the current remote control object; A3. Check whether the current terminal device information is consistent with the backup; A4. Select the operation command for the current terminal device; A5. Confirm and send the operation instruction to the terminal device; The terminal implementation method is used to receive and execute an operation instruction; the terminal implementation method includes the following steps: B1. Receive operation instructions sent by the master station; B2. Check whether the main site information is consistent with the backup; B3. The terminal device enters the remote control state, and the manual operation module is locked and prohibited from use; B4. Execute the operation instructions.

[0008] Preferably, the master station remote control method further comprises the following steps: A6. Use the remote signaling function to monitor whether the operation instructions are executed successfully; A7. If the operation fails, an abnormal alarm message will be generated and field personnel will be contacted to manually perform the operation on the terminal device. A8. Send a dynamic password to the field staff and transmit the password to the terminal device for verification; The terminal implementation method further includes the following steps: B5. Use the remote signaling function to monitor whether the operation is successful; B6. If unsuccessful, a dialog box will pop up on the local panel of the terminal device; B7. After the field staff enters the dynamic password in the dialog box, they verify whether the password is correct; B8. If the password is correct, the terminal device enters manual mode and unlocks the manual operation module.

[0009] Preferably, the dynamic password in step A8 is in the form of a text message verification code, an email verification code, a dynamic token, or a combination thereof.

[0010] Preferably, the master station remote control method further comprises the following steps: A9. Record work logs, encrypt and store them, and synchronize them to an independent audit server; A10. Use the SIEM system to monitor whether there is abnormal behavior, and trigger a real-time alarm if there is.

[0011] Preferably, the content of the work log in step A9 includes operator ID, biometric information, operation time, remote control object, instruction content, and source IP address.

[0012] Preferably, the abnormal behaviors in step A10 include non-working hours operation, high frequency instruction issuance, mismatch between instructions and approval work orders, and excessive number of operation failures.

[0013] Preferably, there are at least two administrators logging into the main station system in step A1, and the two administrators log in independently. One of them performs step A4 to select the operation instruction, and the other performs step A5 to confirm and issue the operation instruction.

[0014] Preferably, the method further includes a master station intelligent analysis method; the master station intelligent analysis method is used to analyze the power grid system and provide operational suggestions to the administrator; the master station intelligent analysis method includes the following steps: C1. Analyze the terminal device selected in step A2 and the regional distribution network using an artificial intelligence analysis model to generate candidate remote control instructions. C2. Compare the candidate remote control instructions given by the artificial intelligence analysis model with the operation instructions selected in step A4 and calculate the degree of overlap; C3. If the overlap is greater than or equal to the preset threshold, directly execute step A5 to confirm and issue the operation instruction. If the overlap is less than the threshold, an alarm prompt will be given to ask whether to continue the execution and provide candidate remote control instruction suggestions.

[0015] Preferably, the specific steps of C1 are: C101, collect terminal equipment data, environmental data and distribution network topology data; C102, data cleaning and feature extraction; C103. Use random forest machine learning to classify fault types and predict remaining life based on historical equipment data. C104. Construct a Markov decision process and train the model to learn the optimal remote control strategy in a simulated environment. C105. Generate candidate remote control instructions based on model analysis results and preset rules; C106, Digital Twin Simulation: Simulate the execution effect of candidate remote control commands in a virtual mirror system to verify whether a chain reaction failure occurs; C107, anti-error locking logic: Check the topology constraints to see if a loop is formed and whether asynchronous closing is caused.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention describes a method for verifying the remote control function of a power distribution terminal. When a master station issues a remote control command, the terminal device verifies the terminal name, terminal address, terminal IP address, telesignaling point number, remote control point number and other data information of the terminal device. Before executing the operation command, the terminal device actively verifies the communication address, message signature, instruction format, sequence integrity and other data information of the master station issuer. By setting a two-way verification mechanism, it can not only improve the correctness and success rate of the operation and reduce the risk of errors, but also help enhance system security. When one party detects that the other party's information is inconsistent with the actual situation, the operation process is immediately interrupted to avoid all kinds of illegal operations and the implementation of malicious intentions.

[0017] 2. The method for verifying the remote control function of a power distribution terminal described in the present invention establishes a two-person review mechanism and requires the joint participation of two authorized personnel, thereby increasing the difficulty for internal personnel to carry out malicious operations alone, preventing and controlling the abuse of authority, and intercepting human errors, effectively avoiding problems such as misselection of equipment and misissuance of instructions due to fatigue, distraction or lack of skills of a single person. In addition, the participation of two people will prompt operators to be more cautious, reduce arbitrary operations, and form a psychological restraint effect, especially in the more dangerous power distribution field, which can significantly reduce "empiricism" or "shortcut" behaviors.

[0018] 3. The method for verifying the remote control function of a distribution terminal described in the present invention applies an artificial intelligence analysis model to the management of distribution terminal equipment and regional equipment, performs real-time data processing and intelligent analysis, provides administrators with optimal operation suggestions, helps to make quick decisions in distribution work, significantly improves fault handling efficiency, and reduces power outage losses for users; at the same time, it enhances system reliability, completes predictive maintenance based on historical data, extends equipment life and optimizes load distribution, reduces line loss and operation and maintenance costs, and promotes the transformation of distribution networks towards efficient, safe, adaptive and intelligent directions, laying a core foundation for the construction of new power systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a functional diagram of the method for verifying the remote control function of a power distribution terminal in the present invention; Figure 2 is a flow chart of the master station remote control method of the present invention; Figure 3 is a flow chart of the terminal implementation method of the present invention; Figure 4 It is a flow chart of the master station intelligent analysis method in the present invention. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figures 1 to 3 As shown, the present invention provides a method for verifying the remote control function of a power distribution terminal, wherein the power distribution terminal involved is a DTU, FTU or DTS, including a master station remote control method and a terminal implementation method; The master station remote control method is used to confirm the administrator's identity information and send an operation instruction to the terminal device; the master station remote control method includes the following steps: A1. Log in to the main site system and verify the administrator's identity information; A2. Select the terminal device to be remotely controlled and check whether the administrator has the operation authority for the current remote control object; A3. Check whether the current terminal device information is consistent with the backup, including terminal name, terminal address, terminal IP address, remote signaling point number, remote control point number, etc.; A4. Select the operation command for the current terminal device; A5. Confirm and send the operation instructions to the terminal device.

[0023] The terminal implementation method is used to receive and execute an operation instruction; the terminal implementation method includes the following steps: B1. Receive operation instructions sent by the master station; B2. Verify that the master station information is consistent with the backup, including communication address, message signature, instruction format, sequence integrity, etc. B3. The terminal device enters the remote control state, and the manual operation module is locked and prohibited from use; B4. Execute the operation instructions.

[0024] The present invention verifies the terminal name, terminal address, terminal IP address, telesignaling point number, remote control point number and other data information of the terminal device when the main station issues a remote control instruction, and the terminal device actively verifies the communication address, message signature, instruction format, sequence integrity and other data information of the main station issuer before executing the operation instruction. By setting a two-way verification mechanism, it can not only improve the correctness and success rate of the operation and reduce the risk of errors, but also help to enhance the security of the system. When one party detects that the other party's information is inconsistent with the actual situation, the operation process is immediately interrupted to avoid all kinds of illegal operations and the implementation of malicious intentions.

[0025] As another embodiment of the present invention, the master station remote control method further includes the following steps: A6. Use the remote signaling function to monitor whether the operation instructions are executed successfully; A7. If the operation fails, an abnormal alarm message will be generated and field personnel will be contacted to manually perform the operation on the terminal device. A8. Send a dynamic password to the field staff and transmit the password to the terminal device for verification; The terminal implementation method further includes the following steps: B5. Use the remote signaling function to monitor whether the operation is successful; B6. If unsuccessful, a dialog box will pop up on the local panel of the terminal device; B7. After the field staff enters the dynamic password in the dialog box, they verify whether the password is correct; B8. If the password is correct, the terminal device enters manual mode and unlocks the manual operation module.

[0026] The dynamic password in step A8 is in the form of a text message verification code, an email verification code, a dynamic token, or a combination thereof.

[0027] As another embodiment of the present invention, the master station remote control method further includes the following steps: A9. Record work logs, encrypt and store them, and synchronize them to an independent audit server. Keep them for ≥ 3 years. By establishing a work log recording mechanism, we can improve the clarity of rights and responsibilities and the transparency of operations. When errors or malicious operations occur in the system, we can use the work log to trace and hold relevant personnel or events accountable, quickly locate the cause of the fault, reduce on-site investigation time, and accurately guide maintenance. If the work log shows that a certain fault often occurs in a certain equipment, the recorded patterns can be used to perform predictive maintenance.

[0028] A10. Use the SIEM (Security Information and Event Management) system to monitor for abnormal behavior and trigger real-time alerts if any; By establishing a behavioral analysis mechanism, we can detect and identify potential network attacks or malicious sabotage, block illegal operations, prevent equipment damage or large-scale power outages, and prevent internal personnel from abusing authority or making erroneous operations, thereby ensuring operational compliance.

[0029] The content of the work log in step A9 includes operator ID, biometric information, operation time, remote control object, instruction content, source IP address, etc.

[0030] The abnormal behaviors described in step A10 include operations during non-working hours, high-frequency instruction issuance, mismatch between instructions and approval work orders, and excessive number of operation failures.

[0031] As another embodiment of the present invention, there are at least two administrators logging into the main station system in step A1, and the two accounts log in independently. One of them executes step A4 to select the operation instruction, and the other executes step A5 to confirm and issue the operation instruction.

[0032] Example: If operator A mistakenly selects a terminal to perform a closing operation, and operator B finds that it does not match the actual approved work order during review, the process can be aborted.

[0033] By establishing a two-person review mechanism and requiring the joint participation of two authorized personnel, it increases the difficulty for internal personnel to carry out malicious operations alone, prevents the abuse of authority, and intercepts human errors, effectively avoiding problems such as incorrect equipment selection and incorrect instructions due to fatigue, distraction or lack of skills of a single person. In addition, the participation of two people will prompt operators to be more cautious, reduce arbitrary operations, and form a psychological restraint effect, especially in the more dangerous field of power distribution, which can significantly reduce "empiricism" or "shortcut" behaviors.

[0034] like Figure 1 and Figure 4 As shown, as another embodiment of the present invention, the method further includes a master station intelligent analysis method; the master station intelligent analysis method is used to analyze the power grid system and provide operation suggestions to the administrator; the master station intelligent analysis method includes the following steps: C1. Analyze the terminal device selected in step A2 and the regional distribution network using an artificial intelligence analysis model to generate candidate remote control instructions. C2. Compare the candidate remote control instructions given by the artificial intelligence analysis model with the operation instructions selected in step A4 and calculate the degree of overlap; C3. If the overlap is greater than or equal to a preset threshold (e.g., 80%), then directly proceed to step A5 to confirm and issue the operation instruction. If the overlap is less than the threshold, an alarm prompt will be given to ask whether to continue the execution and provide candidate remote control instruction suggestions.

[0035] At this point, the administrator can refer to the candidate remote control instructions and overlap given by the artificial intelligence analysis model, and choose to continue executing the current operation instructions or execute according to the candidate remote control instructions.

[0036] As another embodiment of the present invention, the specific steps of C1 are: C101, collect terminal equipment data, environmental data and distribution network topology data; Terminal equipment data: voltage, current, power, equipment temperature, switch status, communication status, etc.; Environmental data: temperature, humidity, lightning activity, etc.; Distribution network topology data: feeder connection relationships, equipment attribute parameters, equipment geographical location, etc.; C102, data cleaning and feature extraction; Data cleaning: Eliminate noise data, such as outliers caused by communication interruptions; interpolate missing data based on time series or correlation between neighboring devices; Feature extraction: Time domain features: mean, variance, slope, zero-crossing rate; Frequency domain characteristics: FFT spectrum analysis, harmonic distortion rate; Equipment association characteristics: current balance and voltage correlation of multiple terminals on the same feeder; Environmental correlation characteristics: Modeling the correlation between lightning strike probability and equipment failure; C103. Use random forest machine learning methods to classify fault types (such as short circuit, grounding, overload, etc.) and predict remaining life based on historical equipment data (such as temperature trends and number of operations); C104. Construct a Markov decision process and train the model to learn the optimal remote control strategy in a simulated environment. C105. Generate candidate remote control instructions based on the model analysis results and in combination with preset rules (such as power system safety regulations).

[0037] C106, Digital Twin Simulation: Simulate the execution effect of candidate remote control commands in a virtual mirror system to verify whether a chain reaction failure occurs; C107, anti-error locking logic: Check the topology constraints to see if a loop is formed and whether asynchronous closing is caused.

[0038] By applying artificial intelligence analysis models to distribution terminal equipment and regional equipment management, real-time data processing and intelligent analysis provide administrators with optimal operation suggestions, help them make quick decisions in distribution work, significantly improve fault handling efficiency, and reduce users' power outage losses; at the same time, enhance system reliability, complete predictive maintenance based on historical data, extend equipment life and optimize load distribution, reduce line loss and operation and maintenance costs, and promote the transformation of distribution networks towards efficient, safe, adaptive and intelligent directions, laying the core foundation for the construction of new power systems.

[0039] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0041] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for verifying the remote control function of a power distribution terminal, characterized in that: Including master station remote control method and terminal implementation method; The master station remote control method is used to confirm the administrator's identity information and send an operation instruction to the terminal device; the master station remote control method includes the following steps: A1. Log in to the main site system and verify the administrator's identity information; A2. Select the terminal device to be remotely controlled and check whether the administrator has the operation authority for the current remote control object; A3. Check whether the current terminal device information is consistent with the backup; A4. Select the operation command for the current terminal device; A5. Confirm and send the operation instruction to the terminal device; The terminal implementation method is used to receive and execute an operation instruction; the terminal implementation method includes the following steps: B1. Receive operation instructions sent by the master station; B2. Check whether the main site information is consistent with the backup; B3. The terminal device enters the remote control state, and the manual operation module is locked and prohibited from use; B4. Execute the operation instructions.

2. A method for verifying the remote control function of a power distribution terminal according to claim 1, characterized in that: The master station remote control method further comprises the following steps: A6. Use the remote signaling function to monitor whether the operation instructions are executed successfully; A7. If the operation fails, an abnormal alarm message will be generated and field personnel will be contacted to manually perform the operation on the terminal device. A8. Send a dynamic password to the field staff and transmit the password to the terminal device for verification; The terminal implementation method further includes the following steps: B5. Use the remote signaling function to monitor whether the operation is successful; B6. If unsuccessful, a dialog box will pop up on the local panel of the terminal device; B7. After the field staff enters the dynamic password in the dialog box, they verify whether the password is correct; B8. If the password is correct, the terminal device enters manual mode and unlocks the manual operation module.

3. A method for verifying the remote control function of a power distribution terminal according to claim 2, characterized in that: The dynamic password in step A8 is in the form of a text message verification code, an email verification code, a dynamic token, or a combination thereof.

4. A method for verifying the remote control function of a power distribution terminal according to claim 2, characterized in that: The master station remote control method further comprises the following steps: A9. Record work logs, encrypt and store them, and synchronize them to an independent audit server; A10. Use the SIEM system to monitor whether there is abnormal behavior, and trigger a real-time alarm if there is.

5. A method for verifying the remote control function of a power distribution terminal according to claim 4, characterized in that: The content of the work log in step A9 includes operator ID, biometric information, operation time, remote control object, instruction content, and source IP address.

6. A method for verifying the remote control function of a power distribution terminal according to claim 4, characterized in that: The abnormal behaviors described in step A10 include operations during non-working hours, high-frequency instruction issuance, mismatch between instructions and approval work orders, and excessive number of operation failures.

7. A method for verifying the remote control function of a power distribution terminal according to claim 1, characterized in that: In step A1, there are at least two administrators who log in to the main station system. The two administrators log in independently with their accounts. One of them performs step A4 to select an operation instruction, and the other performs step A5 to confirm and issue the operation instruction.

8. A method for verifying the remote control function of a power distribution terminal according to claim 1, characterized in that: The method further includes a master station intelligent analysis method; the master station intelligent analysis method is used to analyze the power grid system and provide operational suggestions to the administrator; the master station intelligent analysis method includes the following steps: C1. Analyze the terminal device selected in step A2 and the regional distribution network using an artificial intelligence analysis model to generate candidate remote control instructions. C2. Compare the candidate remote control instructions given by the artificial intelligence analysis model with the operation instructions selected in step A4 and calculate the degree of overlap; C3. If the overlap is greater than or equal to the preset threshold, directly execute step A5 to confirm and issue the operation instruction. If the overlap is less than the threshold, an alarm prompt will be given to ask whether to continue the execution and provide candidate remote control instruction suggestions.

9. A method for verifying the remote control function of a power distribution terminal according to claim 8, characterized in that: The specific steps of C1 are: C101, collect terminal equipment data, environmental data and distribution network topology data; C102, data cleaning and feature extraction; C103. Use random forest machine learning to classify fault types and predict remaining life based on historical equipment data. C104. Construct a Markov decision process and train the model to learn the optimal remote control strategy in a simulated environment. C105. Generate candidate remote control instructions based on the model analysis results and preset rules.

10. A method for verifying the remote control function of a power distribution terminal according to claim 9, characterized in that: The specific steps of C1 also include: C106, Digital Twin Simulation: Simulate the execution effect of candidate remote control commands in a virtual mirror system to verify whether a chain reaction failure occurs; C107, anti-error locking logic: Check the topology constraints to see if a loop is formed and whether asynchronous closing is caused.

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