A method and system for preventing misoperation of distribution network switch

Abstract

The present application relates to the field of power system distribution network automation, more particularly to a distribution network switch operation anti-misoperation method, comprising the following steps: step 1, providing a smart identity component with a unique identification ID on each distribution equipment, and associating and binding the smart identity component with a unique identification ID with equipment account information through a handheld terminal APP, and uploading the bound information to a distribution network anti-misoperation management and control system to complete data archiving; step 2, when there is a repair task, the distribution network anti-misoperation management and control system receives an operation ticket task, and generates a standardized operation sequence according to the task content of the operation ticket and in combination with the equipment account, and then issues the operation sequence to the handheld terminal APP; step 3, an operator starts a smart operation stick and pairs it with the handheld terminal APP, the handheld terminal APP retrieves the current operation sequence from the distribution network anti-misoperation management and control system, and issues a single operation instruction to the smart operation stick.

Description

Technical Field

[0001] This invention relates to the field of power system distribution network automation, and more specifically, to a method and system for preventing misoperation of distribution network switches. Background Technology

[0002] With the accelerated construction of new power systems, distributed power sources such as distributed photovoltaic and wind power are being connected to the distribution network in massive numbers. The operating conditions of distribution network equipment are becoming increasingly complex, which puts forward higher requirements for the operational safety, full-process controllability, and intelligent management and control capabilities of switchgear and ring main units. The traditional operation and maintenance of distribution network switchgear relies on the management and control mode of manual on-site verification of equipment, manual execution of operations, and manual review afterward. The degree of manual intervention is high and the fault tolerance rate is low, which can no longer meet the safety operation and maintenance needs after the high penetration rate of distributed power sources is connected.

[0003] Currently, there are a large number of existing ring main units and switchgear equipment in the distribution network. These equipment generally suffer from incomplete automation upgrades and low levels of intelligence. Most of these existing devices lack status sensing, operation interlocking, and data transmission capabilities, resulting in low transparency of equipment operation status and a lack of effective technical protection against errors throughout the operation process. This leads to frequent safety hazards such as misoperation, missed operation, and dummy operation. In addition, traditional existing equipment signals cannot be transmitted remotely. If power outage upgrades are used to optimize equipment functions, it will seriously affect the reliability of regional power supply, making implementation difficult and costly.

[0004] Existing anti-misoperation technologies for distribution network switchgear are mainly divided into two mainstream solutions, but both have obvious technical defects and cannot meet the needs of low cost, no modification, high reliability, and full closed-loop operation and maintenance.

[0005] The first option is a comprehensive upgrade of existing switchgear primary and secondary components. This option achieves intelligent upgrades by replacing primary and secondary components and reconstructing the control circuits. However, this upgrade method has problems such as extremely high investment costs, long construction periods, and great difficulty in on-site modification. It requires the replacement of the entire cabinet and power outages for construction, which seriously affects the continuity of power supply. Moreover, the upgraded equipment only has basic monitoring functions and lacks the ability to perform targeted operation error prevention verification and accurate judgment of operation results. It cannot fundamentally avoid on-site operation risks and has extremely poor adaptability and practicality.

[0006] The second approach is a cabinet-mounted lock anti-misoperation solution. This solution achieves basic anti-misoperation by installing a fixed mechanical lock on the switch cabinet and configuring an independent unlocking device. This solution does not require large-scale modification of the equipment itself, but it has core anti-misoperation defects: First, the unlocking authorization is disconnected from the actual operation, resulting in a typical "empty operation risk." That is, after completing the unlocking operation, the operator may abandon the actual operation or perform an illegal operation without subsequent action verification, making the anti-misoperation reliability insufficient. Second, there is no remote data feedback capability, and the dispatching and control backend cannot grasp the real-time operating status of the switch on site. The entire operation process lacks traceability and closed-loop management. Third, relying solely on mechanical interlocking protection cannot identify hidden faults such as improper operation, equipment jamming, feigned operation, and mid-operation reversal, and cannot meet the needs of refined anti-misoperation management.

[0007] In summary, current technologies generally suffer from technical pain points such as high equipment modification costs, significant impact from power outages, simplistic anti-misoperation logic, low operational judgment accuracy, lack of full-process closed-loop control, and invisibility of remote status. There is a lack of an intelligent distribution network switchgear operation anti-misoperation solution that requires no modification to the primary or secondary equipment, is non-intrusive, low-cost, highly reliable, and adaptable to aging equipment. Therefore, it is necessary to propose a distribution network switchgear operation anti-misoperation method and system to solve the above problems. Summary of the Invention

[0008] To overcome at least one of the defects (deficiencies) of the prior art, the present invention provides a method and system for preventing misoperation of distribution network switches.

[0009] To solve the above-mentioned technical problems, the technical solution of the present invention is as follows: A method for preventing misoperation of distribution network switches, comprising the following steps: Step 1: Install a smart identity component with a unique identification ID on each power distribution device, and associate and bind the smart identity component with the device ledger information through a handheld terminal APP, and upload the bound information to the power distribution network anti-misoperation management system to complete data archiving; Step 2: When there is a dispatch order for maintenance, the distribution network anti-misoperation control system receives the operation ticket task, and generates a standardized operation sequence based on the task content of the operation ticket and the equipment ledger, and then sends it to the handheld terminal APP. Step 3: The operator turns on the smart control stick and pairs it with the handheld terminal APP. The handheld terminal APP retrieves the current operation sequence from the power distribution network anti-misoperation management system and sends a single operation command to the smart control stick. Step 4: The operator reads the unique identification ID of the smart identity component of each power distribution device through the smart operating wrench, and compares and verifies the code value read by the smart operating wrench with the target code of the instruction issued by the handheld terminal APP. If they match, the smart operating wrench is unlocked, allowing the smart operating wrench to be inserted, and a voice prompt is given that the code reading is successful. If they do not match, the smart operating wrench is kept locked, and a message is broadcast that the target does not match, prohibiting the operation. Step 5: After identity verification is passed, the operator performs the opening or closing operation. The intelligent control stick judges the operation result to confirm whether the operation is in place and whether there is any abnormality. Step 6: After the operation is completed, the smart control stick will send the operation information back to the handheld terminal APP. The handheld terminal APP will then upload the information to the distribution network anti-misoperation management system to complete the closed-loop archiving. After that, the distribution network anti-misoperation management system will determine whether there are any subsequent operation steps. If so, it will repeat steps 3 to 6. If all steps are completed, the operation task will end. Furthermore, in step 1, the smart identity component that uniquely identifies the ID is an RFID electronic tag, which is affixed to the operating mechanism or control panel of each power distribution device.

[0010] Furthermore, in step 2, when there is a dispatch order for maintenance, the distribution network anti-misoperation control system automatically obtains operation ticket information from the distribution network dispatch and operation management system through a standard interface; Alternatively, users can use a handheld app to photograph paper dispatch orders, and the power distribution network anti-misoperation control system will automatically recognize the content of the operation task based on OCR technology. Alternatively, the operation ticket file can be imported into the distribution network anti-misoperation management system to identify the task content of the operation ticket, and then a standardized operation sequence can be generated by combining the equipment ledger and sent to the handheld terminal APP.

[0011] Furthermore, in step 3, the smart control stick is paired with the handheld terminal APP via Bluetooth. When the smart control stick issues a single operation command, the content of the operation command includes the RFID code value of the target switch and the operation target.

[0012] Furthermore, step 4 includes the following steps: Step 41: The operator holds the smart control stick and aligns the movable pin component of the smart control stick with the operation interface of each power distribution device. Step 42: The smart operating stick automatically reads the RFID tags at the operation interfaces of each power distribution device and compares the read RFID tag code value with the target code value sent by the handheld terminal APP. If they match, the smart operating stick is unlocked, allowing the smart operating stick to be inserted, and a voice prompt indicates that the code reading is successful. If they do not match, the smart operating stick remains locked, and a message is broadcast that the target does not match, prohibiting the operation. At the same time, an operation target error message is returned to the handheld terminal APP.

[0013] Furthermore, step 5 includes the following steps: Step 51: After identity verification is passed, the operator performs the opening or closing operation. The intelligent operating rod transmits torque through the movable pin assembly to complete the switching operation. Step 52: After the switch operation is completed, the intelligent control stick synchronously collects angle data and / or torque data at a preset sampling frequency to confirm whether the switch operation is in place and whether there is any abnormality.

[0014] Furthermore, in step 51, if the operator does not perform the opening or closing operation within the predetermined time period after the smart operating stick is unlocked, the smart operating stick enters the unlocked state and issues a prompt message.

[0015] Furthermore, between steps 4 and 5, the following steps are also included: Step 501: Control the distribution network anti-misoperation management system and handheld terminal APP to enter the calibration mode, and perform multiple calibration operations on the same type of power distribution equipment or the same power distribution equipment. The angle sensor and torque sensor in the intelligent operation bar automatically send the torque and angle curves of the multiple calibration operations. Step 502: The distribution network anti-misoperation control system performs statistical cluster analysis on the torque and angle curves of multiple calibration operations, and after removing outliers, calculates the target mean angle, tolerance zone and torque characteristic curve of the power distribution equipment to obtain the calibrated parameters. Step 503: The calibrated parameters are automatically linked to the equipment ledger. When the equipment has an operation task, the distribution network anti-misoperation management system automatically issues the calibration value to replace the default value.

[0016] Furthermore, in step 6, the operation information includes operation time, operator, and information on whether the operation was successful or failed.

[0017] In this invention, a distribution network switch operation error prevention system is also disclosed, including a distribution network error prevention and control system, a handheld terminal APP, a smart operating stick, and a smart identity component installed on each power distribution device; The power distribution network anti-misoperation control system is used to receive operation tickets and store equipment ledgers, and then generate a standardized operation sequence by combining the task content of the operation ticket with the equipment ledger and send it to the handheld terminal APP. The handheld terminal APP is used to receive the operation sequence issued by the distribution network anti-misoperation management system, communicate with the smart operating stick via Bluetooth, issue operation instructions to the smart operating stick and receive operation results to feed back to the distribution network anti-misoperation management system; The intelligent control stick includes an operating handle, an operating lever assembly, a movable pin assembly, an RFID reader / writer module, an angle sensor, and a torque sensor; The operating handle is equipped with a control circuit board, a Bluetooth communication module, and a voice prompt module. The power distribution network anti-misoperation management system, the Bluetooth communication module, and the voice prompt module are respectively connected to the control circuit board. The movable pin assembly is connected to the operating handle via the operating lever assembly; The RFID reader / writer module is installed on the active pin component and is used to read the ID information in the smart identity component; The angle sensor and torque sensor are mounted on the movable pin assembly, and the RFID read / write module, angle sensor, and torque sensor are all connected to the control circuit board.

[0018] Compared with the prior art, the beneficial effects of the technical solution of the present invention are: The method and system for preventing misoperation of distribution network switches disclosed in this invention require no modification to the primary or secondary equipment of the switchgear or ring main unit, and no power outage for construction. Intelligent upgrades can be completed simply by attaching passive RFID smart identification components, a matching smart operating stick, and a cloud-based management system. This completely avoids the problems of high investment, long construction periods, and power outages affecting power supply reliability associated with traditional primary and secondary system upgrades. It is compatible with all types of new and existing distribution equipment across the network, with extremely low implementation difficulty and high scalability. Furthermore, relying on a triple pre-emptive anti-misoperation mechanism—unique RFID identification verification of distribution equipment, compliance verification of operation sequences, and real-time interlocking of operation actions—it completely solves the problem of "unlocking" in traditional lock solutions. This invention addresses the risk of "compliance and lack of operational control" by implementing an automatic timeout mechanism to prevent unauthorized operations such as delayed unlocking or accidental idleness. It avoids safety incidents such as incorrect, erroneous, or missed operations from the outset. Furthermore, the invention innovatively employs a dual-judgment mechanism of angle and torque to solve the problem of misjudgment caused by aging mechanisms and characteristic deviations in older equipment. By comparing dynamic time-normalized curves, it identifies abnormal torque, accurately identifying hidden faults such as equipment jamming, mechanism disengagement, spurious operations, and mid-operation reversal. Compared to traditional single-judgment methods, the accuracy of operation result judgment is significantly improved, and the reliability of error prevention is significantly enhanced. Attached Figure Description

[0019] Figure 1 This is a flowchart of the method for preventing misoperation of distribution network switches in this invention.

[0020] Figure 2 This is a schematic diagram of the structural principle of the distribution network switch operation prevention system in this invention.

[0021] Figure 3 This is a schematic diagram of the structure of the intelligent operating stick in this invention.

[0022] In the diagram, 1 is the power distribution network anti-misoperation control system, 2 is the handheld terminal APP, 3 is the smart operating stick, 4 is the smart identity component, 5 is the operating handle, 6 is the operating lever assembly, 7 is the movable pin assembly, 8 is the RFID reading and writing module, 9 is the angle sensor, 10 is the torque sensor, and 11 is the control circuit board. Detailed Implementation

[0023] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The technical solution of this invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1 As shown, a method for preventing misoperation of distribution network switches includes the following steps: Step 1: Install a smart identity component with a unique identification ID on each power distribution device, and associate and bind the smart identity component with the device ledger information through a handheld terminal APP, and upload the bound information to the power distribution network anti-misoperation management system to complete data archiving; Step 2: When there is a dispatch order for maintenance, the distribution network anti-misoperation control system receives the operation ticket task, and generates a standardized operation sequence based on the task content of the operation ticket and the equipment ledger, and then sends it to the handheld terminal APP. Step 3: The operator turns on the smart control stick and pairs it with the handheld terminal APP. The handheld terminal APP retrieves the current operation sequence from the power distribution network anti-misoperation management system and sends a single operation command to the smart control stick. Step 4: The operator reads the unique identification ID of the smart identity component of each power distribution device through the smart operating wrench, and compares and verifies the code value read by the smart operating wrench with the target code of the instruction issued by the handheld terminal APP. If they match, the smart operating wrench is unlocked, allowing the smart operating wrench to be inserted, and a voice prompt is given that the code reading is successful. If they do not match, the smart operating wrench is kept locked, and a message is broadcast that the target does not match, prohibiting the operation. Step 5: After identity verification is passed, the operator performs the opening or closing operation. The intelligent control stick judges the operation result to confirm whether the operation is in place and whether there is any abnormality. Step 6: After the operation is completed, the smart control stick will send the operation information back to the handheld terminal APP. The handheld terminal APP will then upload the information to the distribution network anti-misoperation management system to complete the closed-loop archiving. After that, the distribution network anti-misoperation management system will determine whether there are any subsequent operation steps. If so, it will repeat steps 3 to 6. If all steps are completed, the operation task will end. In step 1 of this invention, the smart identity component that uniquely identifies the ID is an RFID electronic tag, which is affixed to the operating mechanism or operating panel of each power distribution device.

[0026] In step 2 of the present invention, when there is a dispatch order for maintenance, the distribution network anti-misoperation control system automatically obtains operation ticket information from the distribution network dispatch operation management system through a standard interface; Alternatively, users can use a handheld app to photograph paper dispatch orders, and the power distribution network anti-misoperation control system will automatically recognize the content of the operation task based on OCR technology. Alternatively, the operation ticket file can be imported into the distribution network anti-misoperation management system to identify the task content of the operation ticket, and then a standardized operation sequence can be generated by combining the equipment ledger and sent to the handheld terminal APP.

[0027] In step 3 of the present invention, the smart operating stick and the handheld terminal APP are paired via Bluetooth. When the smart operating stick issues a single operation command, the content of the operation command includes the RFID code value of the target switch and the operation target.

[0028] Step 4 of this invention includes the following steps: Step 41: The operator holds the smart control stick and aligns the movable pin component of the smart control stick with the operation interface of each power distribution device. Step 42: The smart operating stick automatically reads the RFID tags at the operation interfaces of each power distribution device and compares the read RFID tag code value with the target code value sent by the handheld terminal APP. If they match, the smart operating stick is unlocked, allowing the smart operating stick to be inserted, and a voice prompt indicates that the code reading is successful. If they do not match, the smart operating stick remains locked, and a message is broadcast that the target does not match, prohibiting the operation. At the same time, an operation target error message is returned to the handheld terminal APP.

[0029] Step 5 of the present invention includes the following steps: Step 51: After identity verification is passed, the operator performs the opening or closing operation. The intelligent operating rod transmits torque through the movable pin assembly to complete the switching operation. Step 52: After the switch operation is completed, the intelligent control stick synchronously collects angle data and / or torque data at a preset sampling frequency to confirm whether the switch operation is in place and whether there is any abnormality.

[0030] In step 51 of the present invention, if the operator does not perform the opening or closing operation within a predetermined time period after the smart operating stick is unlocked, the smart operating stick enters the unlocked state and issues a prompt message.

[0031] In this invention, angle and torque data are dually determined by angle and torque sensors inside the intelligent operating stick to confirm whether the switch operation is in place and whether there are any abnormalities. In angle determination, it is necessary to ensure that the operation stroke is in place, while torque determination eliminates abnormalities such as jamming and obstruction by analyzing the torque change curve. The combination of the two significantly improves the accuracy and reliability of the operation result judgment, thereby reducing the probability of misoperation.

[0032] In determining the angle, for some similar types of switching equipment, the angle information during the rotation of the intelligent operating rod is acquired. When the rotation angle of the intelligent operating rod reaches the preset operation position angle value, the angle determination is considered successful. However, for some older equipment, the switching characteristics have changed significantly, and a single rotation angle may lead to misjudgment. The inertial measurement unit used consists of a built-in gyroscope, accelerometer, and magnetometer. The measurement data from the gyroscope, accelerometer, and magnetometer are fused using a joint algorithm of Kalman filtering and complementary filtering to obtain the rotation angle information. Kalman filtering is used to fuse the data from the accelerometer and gyroscope to estimate the attitude angle, while complementary filtering is used to fuse the attitude angle with the magnetometer data to correct the heading angle, thereby suppressing gyroscope drift and magnetometer noise.

[0033] During torque determination, the torque information during the rotation of the intelligent control stick is obtained. When the change curve of the torque information matches the preset normal operating torque characteristic value curve, the torque determination is confirmed to be successful. When both the angle determination and the torque determination are successful, the operation is confirmed to be in place.

[0034] In one implementation (using a more complex algorithm, i.e., not just a single torque value, depending on the different cabinets on site), the normal operating torque characteristic curve includes: the torque shows a rapid upward trend at the beginning of operation, a slow increase to a peak in the middle of operation, and a downward trend at the end of operation. When abnormal features such as continuous increase of torque or slow decline of torque appear in the torque information change curve, it is determined that the torque judgment fails and an operation abnormality alarm message is output.

[0035] Therefore, in practical applications, this invention adopts the most reliable solution: multi-source data fusion judgment combining torque and angle. This addresses potential operational errors, such as reversing halfway through operation (due to age, the angle may be reached, but the torque curve doesn't match), or dummy operations (the mechanism isn't actually rotated, only the smart control stick is rotated), or the user completing the operation and then opening the switch again. By combining the task, the torque curve and angle transformation curve output by the edge computing of the smart control stick, a comprehensive judgment is made as to whether the operation is complete. The specific implementation process is as follows: Real-time acquisition of multi-source sensor data: During the rotation of the smart control stick, the built-in sensor group synchronously acquires two types of data at a preset sampling frequency (e.g., 100Hz): The first type is angle data: acquired by the inertial measurement unit (IMU, including gyroscope, accelerometer, and magnetometer); the second type is torque data: acquired by the torque sensor, acquiring the real-time torque value transmitted by the control stick. The edge computing unit of the smart control stick performs timestamp synchronization and preprocessing (filtering and noise reduction) on the two types of data. The process is as follows: (1) Angle path determination Kalman filtering is used to fuse accelerometer and gyroscope data to estimate real-time attitude angles (pitch, roll, and yaw). Complementary filtering is then used to fuse attitude angles with magnetometer data to correct the yaw angle, suppress long-term gyroscope drift and instantaneous magnetometer noise, and output a high-precision rotation angle value θ(t).

[0036] Then, monitor in real time whether θ(t) reaches the preset target angle range [θ_target - Δθ, θ_target + Δθ].

[0037] If θ(t) enters the target interval within the predetermined time window, the angle is determined as "preliminary pass"; otherwise, it is determined as "angle not in place".

[0038] (2) Torque characteristic determination The torque-time curve M(t) is plotted in real time and compared with the preset normal operating torque characteristic curve template of the device by dynamic time warping (DTW) or curve shape similarity comparison.

[0039] The normal characteristic curve is defined as follows: torque rises rapidly in the initial stage → slowly increases to the peak value in the middle stage → torque falls back in the final stage.

[0040] Real-time detection of abnormal patterns: If M(t) shows a continuous abnormal increase (exceeding the preset peak value and not falling back), it is judged as mechanism jamming; if M(t) shows a sudden drop in torque or a slow return, it is judged as mechanism disengagement or dummy operation; if the similarity between the shape of the M(t) curve and the normal template is lower than the set threshold, it is judged as torque characteristic abnormality; if the curve shape matches and the peak value is within a reasonable range, the torque is judged as "preliminary pass"; otherwise, it is judged as "torque characteristic abnormality".

[0041] The operation can be confirmed as successful only when both the angle and torque judgment results are passed; if either judgment fails, the operation is considered abnormal and an alarm is triggered. After each operation is completed, the smart control stick will send the complete angle curve, torque curve and judgment results back to the APP, and the APP will then upload them to the distribution network anti-misoperation management system.

[0042] Between steps 4 and 5 of the present invention, the following steps are also included: Step 501: Control the distribution network anti-misoperation management system and handheld terminal APP to enter the calibration mode, and perform multiple calibration operations on the same type of power distribution equipment or the same power distribution equipment. The angle sensor and torque sensor in the intelligent operation bar automatically send the torque and angle curves of the multiple calibration operations. Step 502: The distribution network anti-misoperation control system performs statistical cluster analysis on the torque and angle curves of multiple calibration operations, and after removing outliers, calculates the target mean angle, tolerance zone and torque characteristic curve of the power distribution equipment to obtain the calibrated parameters. Step 503: The calibrated parameters are automatically linked to the equipment ledger. When the equipment has an operation task, the distribution network anti-misoperation management system automatically issues the calibration value to replace the default value.

[0043] In step 6 of this invention, the operation information includes operation time, operator, and information on whether the operation was successful or failed.

[0044] like Figure 2-3As shown, this invention also discloses a distribution network switch operation error prevention system, including a distribution network error prevention and control system 1, a handheld terminal APP 2, a smart operating stick 3, and smart identity components 4 installed on each distribution equipment; the distribution network error prevention and control system 1 is used to receive operation tickets and store equipment ledgers, and generates a standardized operation sequence by combining the task content of the operation ticket with the equipment ledger before sending it to the handheld terminal APP 2; the handheld terminal APP 2 is used to receive the operation sequence sent by the distribution network error prevention and control system 1, communicate with the smart operating stick 3 via Bluetooth, send operation instructions to the smart operating stick 3, and receive operation results feedback to the distribution network error prevention and control system 1; the smart operating stick 3 includes an operating handle 5 and an operating lever group. The system comprises: component 6, movable pin assembly 7, RFID reader / writer module 8, angle sensor 9, and torque sensor 10; the operating handle 5 contains a control circuit board 11, a Bluetooth communication module 12, and a voice prompt module 13, which are connected to the control circuit board 11 respectively; the movable pin assembly 7 is connected to the operating handle 5 via the operating lever assembly 6; the RFID reader / writer module 8 is mounted on the movable pin assembly 7 and is used to read the ID information in the smart identity component 4; the angle sensor 9 and the torque sensor 10 are mounted on the movable pin assembly 7, and are all connected to the control circuit board 11.

[0045] The positional relationships described in the figures are for illustrative purposes only and should not be construed as limiting this patent. Clearly, the above embodiments of the present invention are merely examples to clearly illustrate the invention and are not intended to limit the implementation of the invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of this invention.

Claims

1. A method for preventing misoperation of distribution network switches, characterized in that: Includes the following steps: Step 1: Install a smart identity component with a unique identification ID on each power distribution device, and associate and bind the smart identity component with the device ledger information through a handheld terminal APP, and upload the bound information to the power distribution network anti-misoperation management system to complete data archiving; Step 2: When there is a dispatch order for maintenance, the distribution network anti-misoperation control system receives the operation ticket task, and generates a standardized operation sequence based on the task content of the operation ticket and the equipment ledger, and then sends it to the handheld terminal APP. Step 3: The operator turns on the smart control stick and pairs it with the handheld terminal APP. The handheld terminal APP retrieves the current operation sequence from the power distribution network anti-misoperation management system and sends a single operation command to the smart control stick. Step 4: The operator reads the unique identification ID of the smart identity component of each power distribution device through the smart operating wrench, and compares and verifies the code value read by the smart operating wrench with the target code of the instruction issued by the handheld terminal APP. If they match, the smart operating wrench is unlocked, allowing the smart operating wrench to be inserted, and a voice prompt is given that the code reading is successful. If they do not match, the smart operating wrench is kept locked, and a message is broadcast that the target does not match, prohibiting the operation. Step 5: After identity verification is passed, the operator performs the opening or closing operation. The intelligent control stick judges the operation result to confirm whether the operation is in place and whether there is any abnormality. Step 6: After the operation is completed, the smart control stick will send the operation information back to the handheld terminal APP. The handheld terminal APP will then upload the information to the distribution network anti-misoperation management system to complete the closed-loop archiving. After that, the distribution network anti-misoperation management system will determine whether there are any subsequent operation steps. If so, it will repeat steps 3 to 6. If all steps are completed, the operation task will end.

2. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: In step 1, the smart identity component that uniquely identifies the ID is an RFID electronic tag, which is affixed to the operating mechanism or control panel of each power distribution device.

3. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: In step 2, when there is a dispatch order for maintenance, the distribution network error prevention and control system automatically obtains operation ticket information from the distribution network dispatch and operation management system through a standard interface. Alternatively, users can use a handheld app to photograph paper dispatch orders, and the power distribution network anti-misoperation control system will automatically recognize the content of the operation task based on OCR technology. Alternatively, the operation ticket file can be imported into the distribution network anti-misoperation management system to identify the task content of the operation ticket, and then a standardized operation sequence can be generated by combining the equipment ledger and sent to the handheld terminal APP.

4. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: In step 3, the smart control stick is paired with the handheld terminal APP via Bluetooth. When the smart control stick issues a single operation command, the content of the operation command includes the RFID code value of the target switch and the operation target.

5. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: Step 4 includes the following steps: Step 41: The operator holds the smart control stick and aligns the movable pin component of the smart control stick with the operation interface of each power distribution device. Step 42: The smart operating stick automatically reads the RFID tags at the operation interfaces of each power distribution device and compares the read RFID tag code value with the target code value sent by the handheld terminal APP. If they match, the smart operating stick is unlocked, allowing the smart operating stick to be inserted, and a voice prompt indicates that the code reading is successful. If they do not match, the smart operating stick remains locked, and a message is broadcast that the target does not match, prohibiting the operation. At the same time, an operation target error message is returned to the handheld terminal APP.

6. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: Step 5 includes the following steps: Step 51: After identity verification is passed, the operator performs the opening or closing operation. The intelligent operating rod transmits torque through the movable pin assembly to complete the switching operation. Step 52: After the switch operation is completed, the intelligent control stick synchronously collects angle data and / or torque data at a preset sampling frequency to confirm whether the switch operation is in place and whether there is any abnormality.

7. The method for preventing misoperation of distribution network switches according to claim 6, characterized in that: In step 51, if the operator does not perform the opening or closing operation within the predetermined time period after the smart operating stick is unlocked, the smart operating stick enters the unlocked state and issues a prompt message.

8. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: Between steps 4 and 5, the following steps are also included: Step 501: Control the distribution network anti-misoperation management system and handheld terminal APP to enter the calibration mode, and perform multiple calibration operations on the same type of power distribution equipment or the same power distribution equipment. The angle sensor and torque sensor in the intelligent operation bar automatically send the torque and angle curves of the multiple calibration operations. Step 502: The distribution network anti-misoperation control system performs statistical cluster analysis on the torque and angle curves of multiple calibration operations, and after removing outliers, calculates the target mean angle, tolerance zone and torque characteristic curve of the power distribution equipment to obtain the calibrated parameters. Step 503: The calibrated parameters are automatically linked to the equipment ledger. When the equipment has an operation task, the distribution network anti-misoperation management system automatically issues the calibration value to replace the default value.

9. The method for preventing misoperation of distribution network switches according to claim 1, characterized in that: In step 6, the operation information includes operation time, operator, and information on whether the operation was successful or failed.

10. A distribution network switch operation error prevention system, comprising a distribution network error prevention and control system, a handheld terminal APP, a smart operating stick, and a smart identity component installed on each distribution device, characterized in that: The power distribution network anti-misoperation control system is used to receive operation tickets and store equipment ledgers, and then generate a standardized operation sequence by combining the task content of the operation ticket with the equipment ledger and send it to the handheld terminal APP. The handheld terminal APP is used to receive the operation sequence issued by the distribution network anti-misoperation management system, communicate with the smart operating stick via Bluetooth, issue operation instructions to the smart operating stick and receive operation results to feed back to the distribution network anti-misoperation management system; The intelligent control stick includes an operating handle, an operating lever assembly, a movable pin assembly, an RFID reader / writer module, an angle sensor, and a torque sensor; The operating handle is equipped with a control circuit board, a Bluetooth communication module, and a voice prompt module. The power distribution network anti-misoperation management system, the Bluetooth communication module, and the voice prompt module are respectively connected to the control circuit board. The movable pin assembly is connected to the operating handle via the operating lever assembly; The RFID reader / writer module is installed on the active pin component and is used to read the ID information in the smart identity component; The angle sensor and torque sensor are mounted on the movable pin assembly, and the RFID read / write module, angle sensor, and torque sensor are all connected to the control circuit board.

Images