Power distribution operation intelligent grounding wire system based on passive RFID and operation method thereof

Abstract

The invention discloses a power distribution operation intelligent grounding wire system based on passive RFID, and belongs to the technical field of power system safety operation. The state recognition and locking unit is used for recognizing whether the grounding clamp is correctly mounted on the grounding pile or not and generating a locking control signal based on the recognition result; the execution locking unit is used for locking or unlocking the opening of the wire clamp; the locking execution unit responds to the locking control signal; the information interaction unit is used for sending corresponding grounding state information to a remote scheduling system when the grounding clamp is mounted or dismounted; and the passive RFID tag is arranged at the grounding pile and stores position identity information. According to the invention, sequential misoperation is completely eradicated from the source, if the grounding terminal is not connected, the lead terminal is connected, remote real-time visual management of the state of the grounding wire is realized, the regulation depending on personnel consciousness is converted into safety steps forcibly executed by a hardware system, and the safety is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of power system safety operation technology, specifically relating to a power distribution operation intelligent grounding wire system based on passive RFID and its operation method. Background Technology

[0002] A grounding wire is a wire connected to the earth. Its main function is to establish an electrical connection between the normally non-energized parts of electrical equipment and the earth, ensuring the normal operation of the equipment and the safety of personnel. When the equipment is operating normally, the grounding wire can maintain the equipment's potential stability; and when the equipment leaks current, the grounding wire can quickly conduct the current to the earth, thereby avoiding equipment damage and the risk of electric shock.

[0003] During power distribution line maintenance, connecting grounding wires is a crucial measure to ensure the safety of workers and prevent electric shock accidents. Traditional grounding wire operation relies on personnel experience and work procedures, which carries risks such as misconnection and omission. Operators may connect the conductor end first and then the grounding end, which can easily lead to induced electric shock. When removing safety measures, it is easy to miss the installed grounding wire, causing power supply to fail to ground the line, resulting in line tripping or damage to power equipment. Furthermore, the current grounding wire status cannot be monitored remotely in real time, resulting in low management efficiency, lack of intelligent linkage with the back-end system, and insufficient safety. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a passive RFID-based intelligent grounding wire system for power distribution operations and its operation method, thereby solving the technical problems mentioned in the background art.

[0005] The objective of this invention is achieved as follows: A passive RFID-based intelligent grounding wire system for power distribution operations includes: a grounding wire body, comprising a wire clamp for connecting the conductor and a grounding clamp for connecting the grounding stake; a status identification and interlocking unit for identifying whether the grounding clamp has been correctly installed on the grounding stake and generating an interlocking control signal based on the identification result; an execution interlocking unit, disposed on the wire clamp, for locking or unlocking the opening of the wire clamp; the execution interlocking unit responds to the interlocking control signal and only unlocks the wire clamp to allow installation operation after the grounding clamp is correctly installed on the grounding stake; an information interaction unit, communicatively connected to the status identification and interlocking unit, for sending corresponding grounding status information to a remote dispatch system when the grounding clamp is installed or removed; and a passive RFID tag disposed at the grounding stake, storing location identification information. In implementation, the connection status of the grounding terminal is first detected (status identification), and then the operation of the conductor terminal is allowed (execution interlocking), and the operation status and location information are reported throughout the process (information interaction). Specifically: 1. Connect the grounding clamp to the grounding stake; 2. After the system recognizes this status, it unlocks the wire clamp; 3. The operator connects the wire clamp to the wire; 4. The system reads the RFID tag information and sends the "grounded" status to the remote dispatch center. This eliminates "sequential operation errors" (such as connecting the wire end before the grounding end is connected), realizes remote real-time visual management of the grounding wire status, and transforms procedures that rely on human self-discipline into safety steps enforced by the hardware system, greatly improving safety.

[0006] Furthermore, the status recognition and interlocking unit includes: a limit switch disposed on the grounding clamp, which is triggered when the grounding clamp is opened to engage the grounding stake; and a control circuit electrically connected to the limit switch, which generates the interlocking control signal when the limit switch is triggered. By using a mechanical limit switch (such as a microswitch) as a sensor, the physical action of "the grounding clamp being opened" is converted into an electrical signal that can be recognized by the circuit. When the operator moves the grounding clamp to engage the grounding stake, the opening of the grounding clamp triggers the switch on it, causing the control circuit to generate an electrical signal (interlocking control signal) indicating that "the grounding terminal is connected." The detection scheme is simple, durable, and low-cost, adaptable to the complex and harsh environment of power sites, and ensures the reliability of status recognition.

[0007] Furthermore, the locking unit includes: an electromagnetic drive unit electrically connected to the control circuit, which operates in response to the locking control signal; and a mechanical locking mechanism linked to the electromagnetic drive unit. When the electromagnetic drive unit operates, it drives the mechanical locking mechanism to release the lock on the wire clamp opening. Using an electro-mechanical lock, the received electrical signal (locking control signal) drives the electromagnet to operate, which in turn drives the mechanical structure to release the physical lock on the wire clamp. The electrical signal generated by the control circuit energizes the electromagnet, causing it to attract. The electromagnet pulls a pin or connecting rod, which originally held the moving parts and baffle of the wire clamp in place. After the pin is removed, the wire clamp can be opened. Unless the system provides an unlocking signal, the operator cannot forcibly open the wire clamp manually, ensuring the execution of safety procedures.

[0008] Furthermore, the mechanical locking mechanism includes a baffle rotatably connected to the wire clamp slot and an elastic element providing a locking tendency for the baffle. The electromagnetic drive unit engages with the baffle via a pin to lock the baffle when not energized and release the lock when energized. The baffle is automatically reset by using elastic elements such as springs. The electromagnet controls the pin to intervene in the locking state of the baffle. Under normal conditions, the spring force keeps the baffle in the locked position, and the pin also holds the baffle in place when the electromagnet is not activated, providing double protection. During unlocking, the electromagnet pulls the pin, and the baffle is pushed open by external force (such as when clamped to a wire). After being clamped, the spring force gives it a closing tendency, preventing it from falling off. During reset, the wire clamp is removed, and the baffle automatically resets under the action of the spring. The structure is simple and effective, the locking is reliable, and it has an automatic reset function, greatly improving ease of use and safety.

[0009] Furthermore, the information interaction unit is configured to read information from the passive RFID tag. When the grounding clamp is installed, it reads the location identification information from the passive RFID tag and sends this information, along with the grounding status information, to the remote dispatch system. After the status identification unit confirms the installation of the grounding clamp, the information interaction unit, acting as a smart terminal, is activated. It reads the RFID tag ID preset on the grounding stake, binds this ID to the "grounding" action, and sends it through the communication module. When the grounding clamp is in place and the limit switch is activated, it triggers an unlock signal and also wakes up the information interaction unit. This unit uses its built-in RFID reader to read tags within the near-field range, obtains the stored tower number, line name, and other location information, and then packages the "grounded" information and sends it to the dispatch system. This achieves automated and accurate identification and recording of grounding wire locations, avoiding human error and enabling the dispatch center to grasp the distribution of grounding wires across the entire network in real time and accurately, greatly improving management efficiency.

[0010] Furthermore, the information interaction unit includes an optical fiber communication module and a 4G / 5G wireless communication module. The optical fiber communication module is model IT168-XG-SX-MM850-D with an LC interface; the 4G / 5G wireless communication module uses the Quectel RM500U-CN / Q-GL / AE 502 5G module. The optical fiber module has strong anti-interference capabilities, and the 5G module has wide wireless coverage. They can be selected or used as backups depending on site conditions, ensuring stable uploading of status information in various complex site environments (such as remote areas and environments with strong electromagnetic interference), thus improving the reliability of the system communication link.

[0011] Furthermore, the grounding wire body includes three insulating rods, each with a hook connector at its upper end. The hook connector has an inverted U-shaped structure and an automatic clamping assembly inside. The automatic clamping assembly includes a left and a right duckbill. A left torsion spring is provided between the left duckbill and the left inner wall of the hook connector, and a right torsion spring is provided between the right duckbill and the right inner wall of the hook connector. The left and right torsion springs are used to press the left and right duckbills together in their natural state. Each of the three hook connectors is connected to a wire, and the other ends of the three wires converge and connect to a main wire. The other end of the main wire is detachably connected to a clamp, which includes an L-shaped clamping plate. A horizontal plate is fixedly provided inside the clamping plate, and a screw is threadedly connected to the horizontal plate. A drive rod is fixedly provided at the outer end of the screw, and a pressure plate is rotatably connected to the inner end of the screw. By rotating the drive rod, the screw is rotated, which in turn causes the pressure plate to move closer to or away from the clamping plate, thus achieving connection or disconnection. When using it, the operator first connects the card head to the ground, and then connects the hanging connector. The operation is simple, labor-saving and easy.

[0012] Furthermore, the system also includes a power supply unit comprising photovoltaic panels and lithium batteries, used to power the state recognition and interlocking unit and the interlocking execution unit. Solar energy, a clean energy source, powers the electronic equipment (control loops, electromagnets, communication modules, etc.) within the system. The photovoltaic panels convert light energy into electrical energy to charge the lithium batteries; the lithium batteries store electrical energy, providing a stable and continuous power supply to the system, especially at night or in low-light conditions. This solves the problem of often being unable to obtain power from outdoor power distribution lines, achieving energy self-sufficiency and all-weather operation for the entire system.

[0013] An operation method for a power distribution intelligent grounding wire system based on passive RFID includes the following steps: Grounding operation steps: Connect the grounding clamp to the grounding stake to trigger the status recognition signal; in response to the status recognition signal, automatically unlock the locking mechanism of the conductor clamp and generate a grounding status signal; send the grounding status signal to the remote dispatch system; install the unlocked conductor clamp on the target conductor.

[0014] Grounding restoration operation steps: Remove the conductor clamp from the target conductor; remove the grounding clamp from the grounding stake, the status identification signal disappears, and a grounding restoration status signal is generated; send the grounding restoration status signal to the remote dispatch system.

[0015] Furthermore, in the grounding operation step, before generating the grounding status signal, the method also includes reading the location information from the preset electronic tag at the grounding stake and sending the location information together with the grounding status signal.

[0016] The beneficial effects of this invention are: it fundamentally eliminates sequential operation errors, such as connecting the conductor end before the grounding end is connected, and achieves remote real-time visual management of the grounding wire status. It transforms procedures reliant on human self-discipline into safety steps enforced by the hardware system, greatly improving safety. During implementation, the system first checks whether the grounding end is connected and identifies its status before allowing operation of the conductor end and executing the interlock. The operation status and location information are reported and exchanged throughout the process. Specifically: 1. Connect the grounding clamp to the grounding stake; 2. After the system identifies this status, it unlocks the conductor clamp; 3. The operator connects the conductor clamp to the conductor; 4. The system reads the RFID tag information and sends the "grounded" status to the remote dispatch center. This solves the technical problem of incorrectly connecting the operating conductor when installing the grounding wire, preventing operators from connecting the conductor end before the grounding end, standardizing operation, enabling access to the dispatch system, preventing accidental entry into energized areas when connecting the grounding wire, preventing connecting the grounding wire while it is energized, preventing closing the circuit breaker with the grounding wire connected, ensuring safe operation, and preventing electric shock and equipment damage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the system architecture of the present invention; Figure 2 This is a diagram illustrating the grounding operation steps of the present invention; Figure 3 This is a diagram illustrating the grounding restoration operation steps of the present invention; Figure 4 This is a schematic diagram of the grounding wire body structure of the present invention.

[0018] In the diagram: 1. Insulating rod, 2. Hanging connector, 3. Left duckbill, 4. Right duckbill, 5. Left torsion spring, 6. Right torsion spring, 7. Clamping plate, 8. Horizontal plate, 9. Screw, 10. Drive rod, 11. Pressure plate. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. It should be noted that this is only for the purpose of more clearly illustrating and explaining the present invention.

[0020] like Figure 1-3As shown, this embodiment discloses a smart grounding wire system for power distribution operations based on passive RFID, including: a grounding wire body, comprising a wire clamp for connecting the conductor and a grounding clamp for connecting the grounding stake; a status identification and locking unit, used to identify whether the grounding clamp has been correctly installed on the grounding stake, and generate a locking control signal based on the identification result; an execution locking unit, disposed on the wire clamp, used to lock or unlock the opening of the wire clamp; the execution locking unit responds to the locking control signal, and only unlocks the wire clamp to allow installation operation after the grounding clamp is correctly installed on the grounding stake; an information interaction unit, communicatively connected to the status identification and locking unit, used to send corresponding grounding status information to a remote dispatch system when the grounding clamp is installed or removed; and a passive RFID tag, disposed at the grounding stake, storing location identification information. In implementation, the connection status of the grounding end is first detected (status identification), and then the operation of the conductor end is allowed (execution locking), and the operation status and location information are reported throughout the process (information interaction). Specifically: 1. Connect the grounding clamp to the grounding stake; 2. After the system recognizes this status, it unlocks the wire clamp; 3. The operator connects the wire clamp to the wire; 4. The system reads the RFID tag information and sends the "grounded" status to the remote dispatch center. This eliminates "sequential operation errors" (such as connecting the wire end before the grounding end is connected), realizes remote real-time visual management of the grounding wire status, and transforms procedures that rely on human self-discipline into safety steps enforced by the hardware system, greatly improving safety.

[0021] For better performance, the status recognition and interlocking unit includes: a limit switch mounted on the grounding clamp, which is triggered when the grounding clamp opens to engage with the grounding stake; and a control circuit electrically connected to the limit switch, which generates the interlocking control signal when the limit switch is triggered. By using a mechanical limit switch (such as a microswitch) as a sensor, the physical action of "the grounding clamp being opened" is converted into an electrical signal that can be recognized by the circuit. When the operator moves the grounding clamp to engage with the grounding stake, the opening of the grounding clamp triggers the switch, which then conducts, causing the control circuit to generate an electrical signal (interlocking control signal) indicating that the grounding terminal is connected. This detection scheme is simple, durable, and low-cost, adaptable to the complex and harsh environment of power sites, and ensures the reliability of status recognition.

[0022] For better results, the locking unit includes: an electromagnetic drive unit electrically connected to the control circuit, which operates in response to the locking control signal; and a mechanical locking mechanism linked to the electromagnetic drive unit. When the electromagnetic drive unit operates, it drives the mechanical locking mechanism to release the lock on the wire clamp opening. Using an electro-mechanical lock, the received electrical signal (locking control signal) drives the electromagnet, which in turn drives the mechanical structure to release the physical lock on the wire clamp. The electrical signal generated by the control circuit energizes the electromagnet, causing it to attract. The electromagnet pulls a pin or connecting rod, which originally held the moving parts and baffle of the wire clamp in place. Once the pin is removed, the wire clamp can be opened. Unless the system provides an unlocking signal, the operator cannot forcibly open the wire clamp manually, ensuring the execution of safety procedures.

[0023] For better performance, the mechanical locking mechanism includes a baffle rotatably connected to the wire clamp slot and an elastic element providing a locking tendency for the baffle. The electromagnetic drive unit engages with the baffle via a pin to lock the baffle when not energized and release it when energized. The baffle is automatically reset by using elastic elements such as springs. The electromagnet controls the pin to intervene in the locking state of the baffle. Under normal conditions, the spring force keeps the baffle in the locked position, and the pin also holds the baffle in place when the electromagnet is not activated, providing double security. To unlock, the electromagnet pulls the pin, and the baffle is pushed open by external force (such as when clamped to a wire). After being clamped, the spring force causes it to close again, preventing it from falling off. To restore, the wire clamp is removed, and the baffle automatically resets under the action of the spring. The structure is simple and effective, the locking is reliable, and the automatic reset function greatly improves ease of use and safety.

[0024] For better results, the information interaction unit is configured to read information from the passive RFID tag. When the grounding clamp is installed, it reads the location identification information from the passive RFID tag and sends this information, along with the grounding status information, to the remote dispatch system. After the status identification unit confirms the installation of the grounding clamp, the information interaction unit, acting as a smart terminal, is activated. It reads the RFID tag ID preset on the grounding stake, binds this ID to the "grounding" action, and sends it via the communication module. When the grounding clamp is in place and the limit switch is activated, it triggers an unlock signal and also wakes up the information interaction unit. This unit uses its built-in RFID reader to read tags within the near-field range, obtains the stored location information such as the pole number and line name, and then packages the "grounded" information and sends it to the dispatch system. This achieves automated and accurate identification and recording of grounding wire locations, avoiding human error and enabling the dispatch center to grasp the distribution of grounding wires across the entire network in real time, greatly improving management efficiency.

[0025] For better performance, the information interaction unit includes an optical fiber communication module and a 4G / 5G wireless communication module. The optical fiber communication module is model IT168-XG-SX-MM850-D with an LC interface; the 4G / 5G wireless communication module uses the Quectel RM500U-CN / Q-GL / AE 502 5G module. The optical fiber module has strong anti-interference capabilities, and the 5G module has wide wireless coverage. They can be selected or used as backups depending on site conditions, ensuring stable uploading of status information in various complex environments (such as remote areas and environments with strong electromagnetic interference), thus improving the reliability of the system communication link.

[0026] For better results, the grounding wire body includes three insulating rods 1. A connector 2 is provided at the upper end of each insulating rod 1. The connector 2 has an inverted U-shaped structure and an automatic clamping assembly inside. The automatic clamping assembly includes a left duckbill 3 and a right duckbill 4. A left torsion spring 5 is provided between the left duckbill 3 and the left inner wall of the connector 2, and a right torsion spring 6 is provided between the right duckbill 4 and the right inner wall of the connector 2. The left torsion spring 5 and the right torsion spring 6 are used to press the left duckbill 3 and the right duckbill 4 against each other in a natural state. Each connector 2 is connected to a wire. The other ends of the three wires converge and connect to a main guide wire. The other end of the main guide wire is detachably connected to a clamp. The clamp includes an L-shaped clamping plate 7. A horizontal plate 8 is fixedly installed inside the clamping plate 7. A screw 9 is threadedly connected to the horizontal plate 8. A drive rod 10 is fixedly installed at the outer end of the screw 9. A pressure plate 11 is rotatably connected to the inner end of the screw 9. By rotating the drive rod 10, the screw 9 is rotated, which in turn causes the pressure plate 11 to move closer to or away from the clamping plate 7, thus achieving connection or disconnection. In use, the operator first connects the clamp to the ground, and then connects the connector 2. The operation is simple, labor-saving, and easy.

[0027] For better performance, a power supply unit is also included, comprising a photovoltaic panel and a lithium battery, to power the state recognition and interlocking unit and the interlocking execution unit. Solar energy, a clean energy source, powers the electronic equipment (control loops, electromagnets, communication modules, etc.) within the system. The photovoltaic panel converts light energy into electrical energy to charge the lithium battery; the lithium battery stores electrical energy, providing a stable and continuous power supply to the system, especially at night or in low-light conditions. This solves the problem of often being unable to obtain power from outdoor power distribution lines, achieving energy self-sufficiency and all-weather operation for the entire system.

[0028] An operation method for a power distribution intelligent grounding wire system based on passive RFID includes the following steps: Grounding operation steps: Connect the grounding clamp to the grounding stake to trigger the status recognition signal; in response to the status recognition signal, automatically unlock the locking mechanism of the conductor clamp and generate a grounding status signal; send the grounding status signal to the remote dispatch system; install the unlocked conductor clamp on the target conductor.

[0029] Grounding restoration operation steps: Remove the conductor clamp from the target conductor; remove the grounding clamp from the grounding stake, the status identification signal disappears, and a grounding restoration status signal is generated; send the grounding restoration status signal to the remote dispatch system.

[0030] For better results, the grounding operation step includes reading the location information from the preset electronic tag at the grounding stake before generating the grounding status signal, and sending the location information together with the grounding status signal.

[0031] In use, this invention can be divided into three parts: a wire clamp locking mechanism, an intelligent grounding wire reader / writer terminal, and a passive RFID tag.

[0032] Wire clamp locking mechanism: A limit switch is installed on the grounding clamp. The action of the limit switch triggers the locking circuit. The locking circuit is powered by the read / write terminal. The locking circuit is connected to the electromagnet at the wire clamp through two wires. The locking mechanism is installed at the wire clamp. The action of the electromagnet triggers the pin to unlock the locking mechanism. A locking baffle is installed at the wire clamp bayonet. The locking baffle is a rotating mechanism that is limited to the locked state by a spring.

[0033] Intelligent Grounding Wire Reader / Writer Terminal: The intelligent grounding wire reader / writer terminal is installed at the rear end of the grounding clamp, equipped with a fiber optic output port and a 4G / 5G transmission module. The terminal is equipped with a photovoltaic panel and powered by a lithium battery. It features an input circuit that triggers reading and transmission, activated by a limit switch when the grounding clamp is subjected to force. The terminal's database stores the line name, number, and tower number. The terminal has a metal casing and is connected to a grounding wire to prevent damage from lightning strikes. If the line has a fiber optic channel, a fiber optic distribution box can be installed at the lower end of the tower, providing fiber optic cabling and plug-and-play ports. If a fiber optic channel is not available, 4G / 5G module communication can be used.

[0034] Passive RFID tags: Passive RFID tags are installed at the grounding stakes of power distribution line towers. The passive RFID tags are pre-written with the line name, number, and tower number of the grounding stake through an intelligent grounding wire reader / writer terminal.

[0035] The operation process of the interlocking circuit for grounding and restoration operations: During grounding operations, the grounding clamp of the grounding wire is first clamped onto the grounding stake of the tower. When the grounding clamp opens, the limit switch activates, and the normally open contact of the limit switch closes, initiating the interlocking circuit. The interlocking circuit is powered by the read / write terminal. After the interlocking circuit is activated, it triggers the electromagnet at the wire clamp. Once the electromagnet is energized, the pin of the interlocking mechanism installed at the wire clamp moves, unlocking the interlocking baffle at the wire clamp's latch. At this point, maintenance personnel can clamp the wire clamp onto the grounding clamp on the power distribution line. During clamping, the interlocking baffle opens under force, compressing the spring. When the wire clamp is removed, the baffle is no longer under force, the spring returns to its original position, and the interlocking baffle returns to the locked state.

[0036] The reading, writing, and transmitting / receiving process of passive RFID tags: Passive RFID tags are pre-written with the line name, number, and tower number of the grounding stake via a smart grounding wire reader / writer terminal. During grounding operations, the grounding clamp opens, triggering a limit switch. The other normally open contact of the limit switch closes, initiating the input circuit for reading and transmitting signals. After the input circuit activates, the reader / writer terminal reads the identification information of nearby passive RFID tags and sets them to grounded status, simultaneously transmitting this information to the dispatch system via fiber optic cable or 4G / 5G. During grounding restoration operations, the grounding clamp closes, the limit switch activates, and the normally open contact of the limit switch opens, closing the input circuit for reading and transmitting signals. When the input circuit stops activating, the reader / writer terminal no longer reads the identification information of nearby passive RFID tags and sets them to grounded restoration status, simultaneously transmitting this information to the dispatch system via fiber optic cable or 4G / 5G. Once the dispatch system detects the grounding status, dispatchers can perform operations such as issuing work permits; once the dispatch system detects the grounding restoration status, dispatchers can perform operations such as restoring power.

[0037] This invention eliminates the risk of incorrect sequential operation, such as connecting the conductor end before the grounding end is connected. It enables remote, real-time, and visual management of the grounding wire status, transforming procedures reliant on human error into safety steps enforced by a hardware system, significantly improving safety. During implementation, the system first checks the grounding end connection and status before allowing operation of the conductor end and executing the interlock. The entire process involves reporting and exchanging operational status and location information. Specifically: 1. Connect the grounding clamp to the grounding stake; 2. The system recognizes this status and unlocks the conductor clamp; 3. The operator connects the conductor clamp to the conductor; 4. The system reads the RFID tag information and sends the "grounded" status to the remote dispatch center. This solves the technical problem of incorrectly connecting the operating conductor when installing the grounding wire, preventing operators from connecting the conductor end before the grounding end, ensuring standardized operation, enabling access to the dispatch system, preventing accidental entry into energized areas when connecting the grounding wire, preventing grounding wire connection while energized, and preventing circuit breakers from being closed with the grounding wire connected, ensuring safe operation and preventing electric shock and equipment damage.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A power distribution operation intelligent grounding wire system based on passive RFID, characterized in that, include: The grounding wire body includes a conductor clamp for connecting the conductor and a grounding clamp for connecting the grounding stake; The status recognition and interlocking unit is used to identify whether the grounding clamp has been correctly installed on the grounding pile, and to generate an interlocking control signal based on the recognition result. An interlocking unit is disposed on the wire clamp for locking or unlocking the opening of the wire clamp; the interlocking unit responds to the interlocking control signal and only unlocks the wire clamp to allow installation operation after the grounding clamp is correctly installed on the grounding stake; The information interaction unit is communicatively connected to the status recognition and interlocking unit and is used to send corresponding grounding status information to the remote dispatch system when the grounding clamp is installed or removed. Passive RFID tags are placed at grounding stakes and store location and identification information.

2. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 1, characterized in that, The state recognition and locking unit includes: The limit switch installed on the grounding clamp is triggered when the grounding clamp is opened to engage the grounding stake. The control circuit is electrically connected to the limit switch. When the limit switch is triggered, the control circuit generates the interlocking control signal.

3. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 2, characterized in that, The locking execution unit includes: An electromagnetic drive unit is electrically connected to the control loop and operates in response to the lockout control signal; The mechanical locking mechanism is linked to the electromagnetic drive component. When the electromagnetic drive component is activated, it drives the mechanical locking mechanism to release the lock on the opening of the wire clamp.

4. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 3, characterized in that, The mechanical locking mechanism includes a baffle rotatably connected to the wire clamp slot and an elastic element that provides a locking tendency for the baffle; the electromagnetic drive unit cooperates with the baffle through a pin to lock the baffle when no power is applied and to release the locking of the baffle when power is applied.

5. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 1, characterized in that, The information interaction unit is configured to read the information of the passive RFID tag. When the grounding clamp is installed, it reads the location and identity information in the passive RFID tag and sends the information together with the grounding status information to the remote dispatch system.

6. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 1, characterized in that, The information interaction unit includes an optical fiber communication module and a 4G / 5G wireless communication module; the optical fiber communication module is model IT168-XG-SX-MM850-D and has an LC interface; the 4G / 5G wireless communication module uses Quectel RM500U-CN / Q-GL / AE 502 5G module.

7. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 1, characterized in that, The grounding wire body includes three insulating rods. Each insulating rod has a connector at its upper end, which is an inverted U-shaped structure. An automatic clamping assembly is installed inside the connector, comprising a left and a right duckbill. A left torsion spring is installed between the left duckbill and the left inner wall of the connector, and a right torsion spring is installed between the right duckbill and the right inner wall of the connector. The left and right torsion springs are used to press the left and right duckbills together in their natural state. Each of the three connectors is connected to a conductor. The other ends of the three conductors converge and connect to a main conductor. The other end of the main conductor is detachably connected to a clamping head, which includes an L-shaped clamping plate. A horizontal plate is fixedly installed inside the clamping plate, and a screw is threaded onto the horizontal plate. A drive rod is fixedly installed at the outer end of the screw, and a pressure plate is rotatably connected to the inner end of the screw.

8. The intelligent grounding wire system for power distribution operations based on passive RFID according to claim 1, characterized in that, It also includes a power supply unit, which comprises a photovoltaic panel and a lithium battery, for supplying power to the state recognition and locking unit and the locking execution unit.

9. An operation method for a power distribution intelligent grounding wire system based on passive RFID, used in the system as described in any one of claims 1-8, characterized in that, Includes the following steps: Grounding operation steps: Connect the grounding clamp to the grounding stake to trigger the status recognition signal; in response to the status recognition signal, automatically unlock the locking mechanism of the conductor clamp and generate a grounding status signal; send the grounding status signal to the remote dispatch system; install the unlocked conductor clamp on the target conductor; Grounding restoration procedure: Remove the wire clamp from the target conductor; Remove the grounding clamp from the grounding stake, the status identification signal disappears, and a grounding recovery status signal is generated; the grounding recovery status signal is sent to the remote dispatch system.

10. The operation method of the intelligent grounding wire system for power distribution operations based on passive RFID according to claim 9, characterized in that, In the grounding operation step, before generating the grounding status signal, the method further includes reading the location information from the preset electronic tag at the grounding stake and sending the location information together with the grounding status signal.

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