Anti-mislocking method, device, equipment and storage medium

Abstract

The present invention relates to the technical field of anti-error locking, and discloses an anti-error locking method, device, equipment, and storage medium for improving operational efficiency. The anti-error locking method includes: detecting the maintenance status of the vehicle at the contact network position in the depot, intelligently judging and executing the corresponding power outage or power supply locking operation; during a power outage, ensuring that the DC contactor is in the closed state, after opening the connecting knife switch, opening the DC contactor, and then disconnecting the three-position knife switch to achieve a power outage; during power supply, first ensuring that the DC contactor and the connecting knife switch are in the open state, after connecting through the three-position knife switch, then determining that the DC contactor is in the closed state, then closing the connecting knife switch, and finally opening the DC contactor to complete the power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of anti-mistaken locking, and in particular to an anti-mistaken locking method, device, equipment and storage medium. Background Art

[0002] Rail transit depots or parking lots primarily handle vehicle maintenance and repair. After a full day of operation, a subway train is driven to the parking garage and its pantograph is lowered. Simultaneously, the on-line isolation switches on each track are disconnected, shutting down the power supply. After a power test confirming no power, the contact wire is connected to the ground wire. Only then can maintenance personnel enter the garage to inspect the train. With the increasing automation and intelligence of subway maintenance operations, on-line isolation switches and ground wires can now be remotely controlled, greatly improving the efficiency of on-site power outages and ground wire connections. However, this also presents certain challenges. When a train completes its operation and arrives at the garage, the status of the train's pantograph is manually verified, and back-office personnel are notified by phone or other means to confirm whether the on-line isolation switches can be disconnected. Therefore, there are often reasons such as the status of the vehicle pantograph not being confirmed or errors in information transmission, which lead to the background opening operation of the online isolating knife switch without confirming that the vehicle has lowered the pantograph or incorrectly judging whether the vehicle has lowered the pantograph; since the vehicle has not lowered the pantograph, the contact network is still energized, and once the isolating knife switch is opened, it will disconnect with load. Since the online isolating knife switch is an ordinary isolating knife switch without arc extinguishing function, the isolating knife switch will arc and burn; therefore, in order to avoid this situation, the current on-site method is still to manually confirm the pantograph lowering status and convey it by telephone. This method mainly relies on manual labor and is prone to inaccurate status confirmation or inadequate information transmission; or install a camera to monitor the status of the vehicle pantograph, but this method requires adding corresponding cameras, video recorders, monitoring terminals, etc. on site, further increasing the on-site maintenance and operation costs. Due to manual judgment of the vehicle's pantograph lowering status, a long confirmation time is required and errors are prone to occur, resulting in low operating efficiency. Summary of the Invention

[0003] The present invention provides an anti-mislocking method, device, equipment and storage medium to solve the problem in the prior art that the vehicle's bow lowering state is manually judged, resulting in low operating efficiency.

[0004] The first aspect of the present invention provides a method for preventing mislocking, wherein the visual grounding load switch device includes a DC contactor, a connecting knife switch and a three-position knife switch, wherein the closing auxiliary point of the DC contactor is connected in series with the connecting knife switch, and the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are connected in series with the three-position knife switch. The method includes: detecting the maintenance status of the vehicle located at the position of the contact network in the depot, and determining the locking operation type of the contact network in the depot based on the maintenance status; when the locking operation type is a power outage locking operation, detecting whether the closing auxiliary point of the DC contactor is in a closed state, if the closing auxiliary point of the DC contactor is in a closed state, controlling the connecting knife switch to perform an opening operation, detecting the opening auxiliary point of the DC contactor and the opening of the connecting knife switch. Whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state, if both the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state, then the three-position knife switch is controlled to perform the open position disconnection operation to realize the power outage operation; when the locking operation type is the power supply locking operation, whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state, if both the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state, then the three-position knife switch is controlled to perform the open position connection operation, and whether the closing position auxiliary point of the DC contactor is in a closed state, if the closing position auxiliary point of the DC contactor is in a closed state, then the connecting knife switch is controlled to perform the closing operation, and then the DC contactor is controlled to perform the opening operation to realize the power supply operation.

[0005] In a feasible embodiment, the connecting knife switch includes a closing control circuit and an opening control circuit connected in parallel, and a first motor connected in series with the closing control circuit and the opening control circuit. The closing auxiliary point of the DC contactor is connected in series with the closing control circuit and the opening control circuit respectively. The controlling the connecting knife switch to perform the opening operation includes:

[0006] Detect whether the closing control circuit and the opening control circuit are in the initial state of the power outage locking operation; if so, control the opening control circuit to close, and under the drive of the opening control circuit, the first motor rotates in the reverse direction to realize the opening control of the connecting knife switch.

[0007] In a feasible embodiment, the closing control circuit includes a closing switch, a closing coil and a closing contact, and the opening control circuit includes an opening switch, an opening coil and an opening contact. When the closing coil of the connecting knife switch is energized, the opening contact of the connecting knife switch is driven to disconnect. When the opening coil of the connecting knife switch is energized, the closing contact of the connecting knife switch is driven to disconnect. The detection of whether the opening control circuit and the closing control circuit are in the initial state of the power outage locking operation includes: detecting whether the closing switch and the opening switch of the connecting knife switch are both in a disconnected state; if so, detecting whether the closing contact and the opening contact of the connecting knife switch are in a closed state; if so, determining whether the closing control circuit and the opening control circuit are both in the initial state of the power outage operation.

[0008] In a feasible embodiment, the connecting knife switch also includes a first control contact and a second control contact, the first control contact controls the reverse rotation of the first motor to drive the connecting knife switch to open, and the second control contact controls the forward rotation of the first motor to drive the connecting knife switch to close, and when the closing control circuit is disconnected, the first control contact is closed, when the closing control circuit is connected, the first control contact is disconnected, when the opening control circuit is disconnected, the second control contact is closed, when the opening control circuit is connected, the second control contact is disconnected, the control of the opening control circuit is closed, and under the drive of the opening control circuit, the first motor of the connecting knife switch rotates in the opposite direction, including: controlling the opening switch of the connecting knife switch to close to drive the opening coil to operate, the closing contact is disconnected and the second control contact is disconnected, so as to realize the reverse rotation of the first motor of the connecting knife switch.

[0009] In a feasible embodiment, the three-position knife switch includes an on-position closing control circuit and an on-position opening control circuit connected in parallel, the on-position closing control circuit includes an on-position closing switch, an on-position closing coil and an on-position closing contact, the on-position opening control circuit includes an on-position opening switch, an on-position opening coil and an on-position opening contact, and the control of the three-position knife switch to perform the on-position connection operation includes: detecting whether the on-position closing control circuit and the on-position opening control circuit are both in the initial state of the power supply locking operation; if so, controlling the on-position closing switch to close to drive the on-position closing coil to operate, so as to disconnect the on-position opening contact, thereby realizing the on-position closing operation of the three-position knife switch.

[0010] In a feasible embodiment, the visual grounding load switch device also includes a first transfer switch and a second transfer switch connected in series. Before detecting the maintenance status of the vehicle located at the position of the contact network in the depot, it also includes: when receiving an on-site control signal, controlling the on-site position of the first transfer switch to be connected based on the on-site control signal, and controlling the sequential control position or the sub-control position of the second transfer switch to be connected to perform sequential control operation or sub-control operation.

[0011] In a feasible embodiment, the visual grounding load switch device also includes a sequential control circuit provided with the second transfer switch, a power supply button and a power off button, wherein the power supply button and the power off button are connected in parallel and connected in series with the second transfer switch; and a sub-control control circuit provided with the second transfer switch, a contactor closing button, a contactor opening button, a contact knife closing button, a contact knife opening button, an on-position closing button, an on-position opening button, a contact position closing button and an on-position opening button, wherein the contactor closing button, the contactor opening button, the contact knife closing button, the contact knife opening button, the on-position closing button and the on-position opening button are connected in parallel and connected in series with the second transfer switch, and the contact position closing button and the contact position opening button are connected in parallel and connected to the first transfer switch. Series; when the visual grounding load switch device is subjected to sequential control operation, the power supply button or the power off button is triggered, and the corresponding first touch signal is output; based on the first touch signal, the visual grounding load switch device is controlled to perform the corresponding control action in a preset order to complete the power supply or power off operation; when the visual grounding load switch device is subjected to separate control operation, the contactor closing button, the contactor opening button, the connecting knife closing button, the connecting knife opening button, the on-position closing button, the on-position opening button, the connecting position closing button or the connecting position opening button are triggered separately and step by step, and the corresponding second touch signal is output; based on the second touch signal, the DC contactor, the connecting knife switch or the three-position knife switch are controlled to independently perform the corresponding opening and closing operations.

[0012] The second aspect of the present invention provides an anti-mistake locking device, comprising: a determination module for detecting the maintenance status of a vehicle located at a position on the contact network in a depot, and determining the type of locking operation on the contact network in the depot based on the maintenance status; a power failure operation module for detecting whether the closing auxiliary point of the DC contactor is in a closed state when the locking operation type is a power failure locking operation, and if the closing auxiliary point of the DC contactor is in a closed state, controlling the contact switch to perform an opening operation, detecting whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the contact switch are in a closed state, and if both the opening auxiliary point of the DC contactor and the opening auxiliary point of the contact switch are in a closed state state, then control the three-position knife switch to perform the connection position disconnection operation to realize the power outage operation; the power supply operation module is used to detect whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in the closed state when the locking operation type is the power supply locking operation. If the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are both in the closed state, control the three-position knife switch to perform the connection position connection operation, detect whether the closing position auxiliary point of the DC contactor is in the closed state, if the closing position auxiliary point of the DC contactor is in the closed state, control the connecting knife switch to perform the closing operation, and then control the DC contactor to perform the opening operation to realize the power supply operation.

[0013] A third aspect of the present invention provides a computer device, comprising: a memory and at least one processor, wherein the memory stores instructions; the at least one processor calls the instructions in the memory to enable the computer device to execute the above-mentioned anti-mislocking method.

[0014] A fourth aspect of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores instructions, which, when executed on a computer, enable the computer to execute the above-mentioned method for preventing mislocking.

[0015] In the technical solution provided by the present invention, the maintenance status of the vehicle located at the position of the contact network in the depot is detected, and the locking operation type of the contact network in the depot is determined based on the maintenance status; when the locking operation type is a power outage locking operation, it is detected whether the closing auxiliary point of the DC contactor is in a closed state. If the closing auxiliary point of the DC contactor is in a closed state, the connecting knife switch is controlled to perform an opening operation, and it is detected whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state. If the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are both in a closed state, the connecting knife switch is controlled. The three-position knife switch performs the disconnection operation in the connection position to realize the power outage operation; when the locking operation type is the power transmission locking operation, it detects whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in the closed state. If the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are both in the closed state, the three-position knife switch is controlled to perform the connection operation in the connection position, and detects whether the closing position auxiliary point of the DC contactor is in the closed state. If the closing position auxiliary point of the DC contactor is in the closed state, the connecting knife switch is controlled to perform the closing operation, and then the DC contactor is controlled to perform the opening operation to realize the power transmission operation. In the embodiment of the present invention, when the power transmission of the contact network in the depot is stopped, the contactor, connecting knife switch and three-position knife switch in the device will perform the opening and closing operations according to the pre-established logic. Since the contactor has the ability to cut off the load circuit, it is not necessary to consider whether the vehicle is in the bow-down state during the power transmission operation, which effectively simplifies the operation process, reduces the time and errors of human judgment, and thus improves the operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an embodiment of a method for preventing mislocking in an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of a control circuit for implementing a method for preventing mislocking according to an embodiment of the present invention;

[0018] Figure 3 A schematic diagram of another embodiment of the method for preventing mislocking according to an embodiment of the present invention;

[0019] Figure 4 A schematic diagram of a control circuit for implementing sequential control and sub-control operations in an embodiment of the present invention;

[0020] Figure 5 A schematic diagram of an anti-mislocking device in an embodiment of the present invention;

[0021] Figure 6 FIG. 1 is a schematic diagram of an embodiment of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0022] The embodiments of the present invention provide a control method, device and equipment for a visual grounding load switch device, which performs opening and closing operations according to a pre-established logic through a contactor, a connecting knife switch and a three-position knife switch to achieve power outage operation, effectively simplifying the operating process, reducing the time and errors of human judgment, and thus improving operating efficiency.

[0023] The terms "first," "second," "third," "fourth," and the like (if any) in the description and claims of the present invention and in the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" or "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatus.

[0024] It is understandable that the execution subject of the present invention may be a control device of a visual grounding load switch device, or a terminal or a server, which is not limited here. The embodiment of the present invention is described by taking a server as the execution subject as an example.

[0025] For ease of understanding, the specific process of the embodiment of the present invention is described below. Figure 1 , an embodiment of the method for preventing mislocking in an embodiment of the present invention includes:

[0026] 101. Detecting the maintenance status of a vehicle located at a position on the contact network within the depot, and determining a locking operation type for the contact network within the depot based on the maintenance status;

[0027] 102. When the locking operation type is a power outage locking operation, the closing auxiliary point of the DC contactor is detected to see if it is in a closed state. If so, the connecting knife switch is controlled to perform an opening operation. The opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are detected to see if they are in a closed state. If both the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state, the three-position knife switch is controlled to perform a disconnection operation in the connected position to achieve a power outage operation.

[0028] 103. When the locking operation type is the power transmission locking operation, detect whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the interconnecting knife switch are in the closed state. If the opening auxiliary point of the DC contactor and the opening auxiliary point of the interconnecting knife switch are both in the closed state, control the three-position knife switch to perform the connecting operation, detect whether the closing auxiliary point of the DC contactor is in the closed state, if the closing auxiliary point of the DC contactor is in the closed state, control the interconnecting knife switch to perform the closing operation, and then control the DC contactor to perform the opening operation to realize the power transmission operation.

[0029] The anti-mistake locking method is applied to a visual ground load switch device, which includes a DC contactor, a connecting knife switch and a three-position knife switch, such as Figure 2 As shown in the circuit diagram, it includes the opening and closing switch D02 of the DC contactor, the closing switch D03 of the connecting knife switch, the opening switch D04 of the connecting knife switch, the closing switch D05 of the three-position knife switch in the connected position, the opening switch D06 of the three-position knife switch in the connected position, the closing switch D07 of the three-position knife switch in the connected position, the opening switch D08 of the three-position knife switch in the connected position, the closing auxiliary point JCQ (13, 14) of the DC contactor, the opening auxiliary point JCQ (21, 22) of the DC contactor, the opening auxiliary point LL (11, 12) of the connecting knife switch, the closing coil 2KA (A1, A2) of the connecting knife switch, the opening coil 3KA (A1, A2), the closing contact 3KA (21,22) and open contact 2KA (21,22), the on-position closing coil 4KA (A1, A2) of the three-position knife switch, the on-position open coil 5KA (A1, A2), the on-position closing contact 5KA (21,22), the on-position open contact 4KA (21,22), the first motor 2M, the second motor 1M, the first control contact 3KA (43,44), 3KA (13,14), the second control contact 2KA (43,44), 2KA (13,14), the third control contact 4KA (43,44), 4KA (13,14) and the fourth control contact 5KA (43,44), 5KA (13,14).

[0030] When the opening and closing switch of the DC contactor is closed, the DC contactor is in the connected state. When the opening and closing switch of the DC contactor is opened, the DC contactor is in the disconnected state. The closing auxiliary point of the DC contactor is connected in series with the interconnecting knife switch. The opening auxiliary point of the DC contactor and the opening auxiliary point of the interconnecting knife switch are connected in series with the three-position knife switch. When the DC contactor is in the connected state, the closing auxiliary point of the DC contactor is closed, and the opening auxiliary point of the DC contactor is disconnected. When the DC contactor is in the disconnected state, the closing auxiliary point of the DC contactor is disconnected, and the opening auxiliary point of the DC contactor is closed.

[0031] The contact knife switch includes a closing control circuit, an opening control circuit, a first motor, a first control contact and a second control contact. After the closing control circuit and the opening control circuit are connected in parallel, one end thereof is connected in series with the closing auxiliary point of the DC contactor, and the other end is connected in series with the first motor. The first control contact is respectively provided at both ends of the first motor, and the second control contact is respectively provided at both ends of the first motor. The first control contact controls the reverse rotation of the first motor to drive the contact knife switch to open, and the second control contact controls the forward rotation of the first motor to drive the contact knife switch to close, and when the closing control circuit is disconnected, the first control contact is closed, and when the closing control circuit is disconnected, the first control contact is closed. When the circuit is connected, the first control contact is disconnected. When the opening control circuit is disconnected, the second control contact is closed. When the opening control circuit is connected, the second control contact is disconnected. Therefore, when the closing control circuit is closed, the first control contact is disconnected, and when the second control contact is closed, the first motor is driven to rotate forward to realize the closing operation of the connecting knife switch. When the opening control circuit is closed, the second control contact is disconnected, and when the first control contact is closed, the second motor is driven to rotate reversely to realize the opening operation of the connecting knife switch. The closing control circuit includes a closing switch, a closing coil and a closing contact. The opening control circuit includes an opening switch, an opening coil and an opening contact.

[0032] The three-position knife switch includes an on-position closing control circuit, an on-position opening control circuit, an on-position closing control circuit, an on-position opening control circuit, a second motor, a third control contact and a fourth control contact. The on-position opening control circuit is connected to the on-position closing control circuit, and the on-position closing control circuit is connected to the on-position opening control circuit. After the on-position closing control circuit and the on-position opening control circuit are connected in parallel, one end is connected in series with the open position auxiliary point of the DC contactor and the open position auxiliary point of the contact knife switch, and the other end is connected in series with the second motor. The circuit includes an on-position closing switch, an on-position closing coil and an on-position closing contact. The on-position opening control circuit includes an on-position opening switch, an on-position opening coil and an on-position opening contact. When the on-position closing control circuit is closed, the fourth contact is disconnected and the third control contact is closed, the second motor is driven to rotate forward to realize the closing operation of the three-position knife switch on position. When the on-position opening control circuit is closed, the third control contact is disconnected and the fourth control contact is closed, the second motor is driven to rotate reversely to realize the opening operation of the three-position knife switch on position.

[0033] Through Figure 2The control circuit shown realizes the opening and closing operations of the contactor, the connecting knife switch and the three-position knife switch, and connects the closing auxiliary point of the DC contactor to the control circuit of the connecting knife switch, that is, the closing auxiliary point of the DC contactor is connected in series to the closing control circuit and the opening control circuit of the connecting knife switch, so that the opening and closing control circuit of the connecting knife switch can be connected only when the contactor is in the closed position, thereby eliminating the hidden danger of arcing of the connecting knife switch. The DC contactor, the connecting knife switch and the three-position knife switch are controlled by the above-mentioned control circuit. When the connecting knife switch is opened and closed, the DC contactor is ensured to be in the closed position to short-circuit the two ends of the connecting knife switch, so that the potential at both ends of the connecting knife switch is zero. At this time, there will be no arcing when the connecting knife switch is opened and closed, thereby ensuring the safety of operating the connecting knife switch.

[0034] By connecting the open auxiliary points of the DC contactor and the connecting knife switch to the control circuit of the three-position knife switch, the control circuit of the three-position knife switch can only be connected when the DC contactor and the connecting knife switch are both in the open position, ensuring that the three-position knife switch is free of arcing hazards. By controlling the DC contactor, the connecting knife switch, and the three-position knife switch through this control circuit, the DC contactor and the connecting knife switch are both in the open state when the three-position knife switch is opened and closed. At this time, the contact network in the warehouse can be guaranteed to be de-energized, and arcing will not occur when the three-position knife switch is operated, ensuring the safety of the three-position knife switch operation.

[0035] Detecting the maintenance status of vehicles beneath the catenary within the depot and determining the type of locking operation based on this status are key steps in ensuring safe and stable system operation. Sensors or other detection methods can be used to monitor the status of vehicles beneath the catenary in real time. These sensors can detect target information such as the vehicle's location, operating status, and whether the maintenance procedure has been initiated. These sensors then transmit this information to a server, which analyzes it and determines the vehicle's maintenance status based on the analysis results.

[0036] If the vehicle's inspection status is in the inspection state, the locking operation type is determined to be a power-off locking operation; if the vehicle's inspection status is in the inspection-completed state, the locking operation type is determined to be a power-on locking operation.

[0037] The power outage locking operation is to ensure the electrical isolation between the contact network in the depot and the power supply when the vehicle is under maintenance, to prevent accidents such as accidental electric shock or short circuit. The power supply locking operation is to reconnect the contact network in the depot to the system after the maintenance is completed to restore it to normal power supply status.

[0038] When the locking operation type is power outage locking operation, ensure that the DC contactor is in the closed state, open the contactor, open the DC contactor, and then open the three-position switch to achieve power outage.

[0039] Controlling the interconnecting knife switch to perform the opening operation includes: detecting whether the closing control circuit and the opening control circuit are in the initial state of the power outage lockout operation; if so, controlling the opening control circuit to close, and under the drive of the opening control circuit, the first motor rotates in the reverse direction to realize the opening control of the interconnecting knife switch.

[0040] The detection of the initial state under the power outage lockout operation includes: detecting whether the closing switch and the opening switch of the interconnecting knife switch are both in the disconnected state; if so, detecting whether the closing contact and the opening contact of the interconnecting knife switch are in the closed state; if so, determining whether the closing control circuit and the opening control circuit are both in the initial state of the power outage operation.

[0041] Controlling the closing of the trip control circuit, under the drive of the trip control circuit, the first motor of the contact knife switch rotates in the reverse direction, including: controlling the trip switch of the contact knife switch to close to drive the trip coil to operate, disconnecting the closed contact and the second control contact, and realizing the reverse rotation of the first motor of the contact knife switch.

[0042] In the initial state of the power outage lockout operation, the closing switch of the connecting knife switch is disconnected, and the closing control circuit is in a disconnected state, thereby determining that the closing coil is in a disconnected state. When the closing coil is in a disconnected state, the opening contact and the first control contact are closed, and the opening switch of the combined knife switch is disconnected, then the opening control circuit is in a disconnected state, thereby determining that the opening coil is in a disconnected state. When the opening coil is in a disconnected state, the closing contact and the second control contact are closed. Therefore, in the initial state, if the opening operation of the connecting knife switch is to be realized, the opening switch must be controlled to be closed. After the opening switch is closed, the opening control circuit is connected, driving the opening coil to operate. When the opening coil is running, the closing contact and the second control contact are disconnected, so that the first motor of the connecting knife switch rotates in the opposite direction to realize the opening operation of the connecting knife switch.

[0043] After the opening coil is operated, the opening auxiliary point of the contactor is closed, and the opening and closing switches of the DC contactor are controlled to perform the opening operation. The closing auxiliary point of the DC contactor is disconnected and the opening auxiliary point is closed. The opening switch in the connection position of the three-position knife switch is controlled to be closed, and the closing switch in the connection position is closed, so that the three-position knife switch is grounded to realize the power outage operation.

[0044] When the locking operation type is power supply locking operation, ensure that the DC contactor and the interconnecting knife switch are in the open state. After connecting through the three-position knife switch, make sure that the DC contactor is in the closed state, then close the interconnecting knife switch, and finally open the DC contactor to complete the power supply.

[0045] Controlling the three-position knife switch to perform the on-position connection operation includes: detecting whether the on-position closing control circuit and the on-position opening control circuit are both in the initial state of the power supply locking operation; if so, controlling the on-position closing switch to close, so as to drive the on-position closing coil to operate, so as to disconnect the on-position opening contacts, and realize the on-position closing operation of the three-position knife switch.

[0046] The initial state detection of the power supply locking operation includes: detecting whether the on-position closing switch and the on-position opening switch are in the disconnected state; if so, detecting whether the on-position closing contact and the on-position opening contact are in the closed state; if so, determining whether the on-position closing control circuit and the on-position opening control circuit are both in the initial state of the power supply locking operation.

[0047] In the initial state of the power supply locking operation, the on-position closing switch of the three-position knife switch is disconnected, and the on-position closing control circuit is in a disconnected state, thereby determining that the on-position closing coil is in a disconnected state. When the on-position coil is in an off state, the on-position open position contact and the fourth control contact are closed, and the on-position open position switch of the three-position knife switch is disconnected, then the on-position open position control circuit is in a disconnected state, thereby determining that the on-position open position coil is in a disconnected state. When the on-position open position coil is disconnected, the on-position closing contact and the third control contact are closed. Therefore, in the initial state, if the on-position connection operation is to be realized, the on-position closing switch needs to be controlled to be closed. After the on-position closing switch is closed, the on-position closing control circuit is connected, driving the on-position closing coil to operate. When the on-position closing coil is operating, the on-position open position switch contact and the fourth control contact are disconnected, so that the second motor rotates forward to realize the on-position closing operation of the three-position knife switch.

[0048] The opening and closing switch of the DC contactor is controlled to close, the closing auxiliary point of the DC contactor is closed, the opening auxiliary point of the DC contactor is disconnected, and the closing control circuit of the connecting knife switch is controlled to be connected to drive the first motor to rotate in the forward direction to realize the closing of the connecting knife switch, and then the opening and closing switch of the DC contactor is controlled to open, thereby completing the power supply operation.

[0049] In an embodiment of the present invention, the maintenance status of the vehicle located at the position of the contact network in the depot is detected, and the type of locking operation on the contact network in the depot is determined based on the maintenance status; when the locking operation type is a power outage locking operation, it is detected whether the closing auxiliary point of the DC contactor is in a closed state. If the closing auxiliary point of the DC contactor is in a closed state, the connecting knife switch is controlled to perform an opening operation, and it is detected whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state. If the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are both in a closed state, the three-position knife switch is controlled. The switch performs the disconnection operation in the on position to realize the power outage operation; when the locking operation type is the power transmission locking operation, it detects whether the DC contactor's open position auxiliary point and the open position auxiliary point of the interconnecting knife switch are in the closed state. If the DC contactor's open position auxiliary point and the interconnecting knife switch's open position auxiliary point are both in the closed state, the three-position knife switch is controlled to perform the connection operation in the on position, and detects whether the DC contactor's closing position auxiliary point is in the closed state. If the DC contactor's closing position auxiliary point is in the closed state, the interconnecting knife switch is controlled to perform the closing operation, and then the DC contactor is controlled to perform the opening operation to realize the power transmission operation. When the power supply is stopped in the contact network in the depot, the DC contactor, interconnecting knife switch and three-position knife switch in the device will perform the opening and closing operations according to the pre-established logic. Since the DC contactor has the ability to cut off the load circuit, there is no need to consider whether the vehicle is in the bow-down state during the power outage operation, which effectively simplifies the operation process, reduces the time and errors of human judgment, and thus improves the operation efficiency.

[0050] See also Figure 3 Another embodiment of the method for preventing mislocking in the embodiment of the present invention includes:

[0051] 301. Receive a local control signal or a remote control signal;

[0052] 302. When a local control signal is received, the local position of the first transfer switch is controlled to be connected, and the sequence control position or the split control position of the second transfer switch is controlled to be connected based on the local control signal, so as to perform a sequence control operation or a split control operation.

[0053] The visual grounding load switch device also includes a sequential control circuit provided with a second transfer switch, a power supply button and a power off button, wherein the power supply button and the power off button are connected in parallel and connected in series with the second transfer switch; a sub-control circuit is provided with a second transfer switch, a contactor closing button, a contactor opening button, a contactor closing button, a contactor opening button, a connection position closing button, a connection position opening button, a connection position closing button and a connection position opening button, wherein the contactor closing button, the contactor opening button, the contactor closing button, the contactor opening button, the connection position closing button and the connection position opening button are connected in parallel and connected in series with the second transfer switch, and the connection position closing button and the connection position opening button are connected in parallel and connected in series with the first transfer switch; When the visual grounding load switch device is operated in sequence, the power-on button or the power-off button is triggered, and the corresponding first touch signal is output. Based on the first touch signal, the visual grounding load switch device is controlled to perform the corresponding control action in a preset order to complete the power-on or power-off operation; when the visual grounding load switch device is operated in separate control, the contactor closing button, the contactor opening button, the interconnecting knife closing button, the interconnecting knife opening button, the on-position closing button, the on-position opening button, the connected position closing button or the connected position opening button are triggered separately and step by step, and the corresponding second touch signal is output. Based on the second touch signal, the DC contactor, the interconnecting knife switch or the three-position knife switch is controlled to independently perform the corresponding opening and closing operations.

[0054] like Figure 4As shown, 1QK is the first transfer switch, 2QK is the second transfer switch, S1H is the power on button, S1F is the power off button, S2H is the contactor closing button, S2F is the contactor opening button, S3H is the contactor closing button, S3F is the contactor opening button, S4H is the on position closing button, S4F is the on position opening button, S5H is the connected position closing button, and S5F is the connected position opening button. When the 3rd contact and the 4th contact of 1QK are connected, 1QK is in the in-position connected state. In the in-position connected state, when the 3rd contact and the 4th contact of 2QK are connected, the sequential control operation can be completed through S1H or S1F. The sequential control operation refers to the execution of a series of control actions in a predetermined order. During remote control, the device performs the sequential control operation by default. During local control, the corresponding button is triggered to generate the corresponding first touch signal. Based on the first touch signal, a series of control actions are executed in a predetermined order to complete the power supply or power outage function. Therefore, the sequential control operation can realize the one-key power supply or one-key power outage function through S1H or S1F; in the in-position connected state, the sub-control operation can be performed through S5H and S5F. When the 1st contact and the 2nd contact of 2QK are connected, the sub-control operation can be completed through S5H and S5F. The sub-control operation is performed through S2H, S2F, S3H, S3F, S4H and S4F. The sub-control operation can control each component in the device individually. During local control, the corresponding button is triggered to generate a corresponding second touch signal, and each component is controlled individually based on the second touch signal. Therefore, the sub-control operation can independently control the contactor to close through S2H, independently control the contactor to open through S2F, independently control the interconnecting knife switch to close through S3H, independently control the interconnecting knife switch to open through S3F, independently control the three-position knife switch to close through S4H, independently control the three-position knife switch to open through S4F, independently control the three-position knife switch to close through S5H, and independently control the three-position knife switch to open through S5F.

[0055] Sequential control operation is suitable for automated operation during normal operation, while sub-control operation is more suitable for flexible control during debugging, line troubleshooting or special operations. Through the design of the transfer switch, the device can easily switch between these two modes to meet different operating requirements.

[0056] 303. When a remote control signal is received, obtaining a vehicle detection instruction based on the remote control signal;

[0057] When a remote control signal is received, the remote control node of the first conversion switch is controlled to connect based on the remote control signal, and it is determined whether the remote control node connection signal of the first conversion switch is received. If the remote control node connection signal of the first conversion switch is received, the vehicle detection instruction is obtained.

[0058] 304. When a vehicle inspection instruction is received, inspect the inspection status of the vehicle located at the location of the in-depot contact network, and determine the type of locking operation for the in-depot contact network based on the inspection status;

[0059] 305. When the locking operation type is a power outage locking operation, the closing auxiliary point of the DC contactor is detected to see if it is in a closed state. If so, the connecting knife switch is controlled to perform an opening operation. The opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are detected to see if they are in a closed state. If both the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state, the three-position knife switch is controlled to perform a disconnection operation in the on position to achieve a power outage operation.

[0060] 306. When the locking operation type is the power transmission locking operation, detect whether the open auxiliary point of the DC contactor and the open auxiliary point of the interconnecting knife switch are in the closed state. If the open auxiliary point of the DC contactor and the open auxiliary point of the interconnecting knife switch are both in the closed state, control the three-position knife switch to perform the connecting operation, detect whether the closing auxiliary point of the DC contactor is in the closed state, if the closing auxiliary point of the DC contactor is in the closed state, control the interconnecting knife switch to perform the closing operation, and then control the DC contactor to perform the opening operation to realize the power transmission operation.

[0061] In an embodiment of the present invention, when a local control signal is received, the local position of the first transfer switch is controlled to be connected based on the local control signal, and the sequential control position or the sub-control position of the second transfer switch is controlled to be connected to perform sequential control operation or sub-control operation; when a remote control signal is received, a vehicle detection instruction is obtained based on the remote control signal; when a vehicle detection instruction is received, the maintenance status of the vehicle located at the position of the contact network in the depot is detected, and the type of locking operation on the contact network in the depot is determined based on the maintenance status; when the locking operation type is a power outage locking operation, it is detected whether the closing auxiliary point of the DC contactor is in a closed state. If the closing auxiliary point of the DC contactor is in a closed state, the connecting knife switch is controlled to perform an opening operation, and the opening auxiliary point and the contact of the DC contactor are detected. Whether the split auxiliary point of the knife switch is in a closed state, if the split auxiliary point of the DC contactor and the split auxiliary point of the interconnecting knife switch are both in a closed state, the three-position knife switch is controlled to perform the disconnection operation in the connection position to realize the power outage operation; when the locking operation type is the power supply locking operation, detect whether the split auxiliary point of the DC contactor and the split auxiliary point of the interconnecting knife switch are in a closed state, if the split auxiliary point of the DC contactor and the split auxiliary point of the interconnecting knife switch are both in a closed state, then control the three-position knife switch to perform the connection operation in the connection position, detect whether the closing auxiliary point of the DC contactor is in a closed state, if the closing auxiliary point of the DC contactor is in a closed state, control the interconnecting knife switch to perform the closing operation, and then control the DC contactor to perform the opening operation to realize the power supply operation. Through sequential control operation, the coordinated operation between various devices can be ensured, which improves the stability and reliability of the system. At the same time, sequential control operation can complete the control of multiple devices at one time, which improves the operating efficiency. Through sub-control operation, the performance and function of each device can be tested individually to ensure that the equipment can achieve the expected results during normal operation. At the same time, sub-control operation can also help to quickly locate and solve equipment failures, improving the maintainability and reliability of the system. When the power supply of the contact network in the depot is stopped, the DC contactor, interconnecting knife switch and three-position knife switch in the device will be opened and closed according to the pre-established logic. Since the DC contactor has the ability to cut off the load circuit, there is no need to consider whether the vehicle is in the bow-down state during the power supply operation, which effectively simplifies the operating process, reduces the time and errors of human judgment, and thus improves operating efficiency.

[0062] The above describes the anti-mistaken locking method in the embodiment of the present invention. The following describes the anti-mistaken locking device in the embodiment of the present invention. Figure 5 In one embodiment of the present invention, an embodiment of preventing mis-locking includes:

[0063] The determination module 501 is used to detect the maintenance status of the vehicle located at the position of the contact network in the depot, and determine the type of locking operation for the contact network in the depot based on the maintenance status;

[0064] The power outage operation module 502 is used to detect whether the closing auxiliary point of the DC contactor is in a closed state when the locking operation type is a power outage locking operation. If the closing auxiliary point of the DC contactor is in a closed state, the connecting knife switch is controlled to perform an opening operation, and detect whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state. If both the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state, the three-position knife switch is controlled to perform a connection-disconnection operation to achieve a power outage operation;

[0065] The power transmission operation module 503 is used to detect whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state when the locking operation type is a power transmission locking operation. If the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are both in a closed state, the three-position knife switch is controlled to perform a connecting operation, and detect whether the closing position auxiliary point of the DC contactor is in a closed state. If the closing position auxiliary point of the DC contactor is in a closed state, the connecting knife switch is controlled to perform a closing operation, and then the DC contactor is controlled to perform an opening operation to realize the power transmission operation.

[0066] In the embodiment of the present invention, when the contact network in the depot is shut down, the DC contactor, interconnecting knife switch and three-position knife switch in the device will be opened and closed according to the pre-established logic. Since the DC contactor has the ability to disconnect the load circuit, there is no need to consider whether the vehicle is in the pantograph lowering state during the power outage operation, which effectively simplifies the operation process, reduces the time and errors of human judgment, and thus improves the operation efficiency.

[0067] above Figure 5 The anti-mistake locking device in the embodiment of the present invention is described in detail from the perspective of modular functional entities, and the computer device in the embodiment of the present invention is described in detail from the perspective of hardware processing.

[0068] See also Figure 6 As shown, the computer device includes a processor 600 and a memory 601 , wherein the memory 601 stores machine executable instructions that can be executed by the processor 600 , and the processor 600 executes the machine executable instructions to implement the above-mentioned anti-mislocking method.

[0069] Further, Figure 6 The computer device shown further includes a bus 602 and a communication interface 603 , and the processor 600 , the communication interface 603 and the memory 601 are connected via the bus 602 .

[0070] Among them, the memory 601 may include a high-speed random access memory (RAM), and may also include a non-volatile memory (non-volatile memory), for example, at least one disk storage. The communication connection between the system network element and at least one other network element is realized through at least one communication interface 603 (which can be wired or wireless), and the Internet, wide area network, local area network, metropolitan area network, etc. can be used. The bus 602 can be an ISA bus, a PCI bus, or an EISA bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 6 Only one bidirectional arrow is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0071] The processor 600 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits or software instructions in the processor 600. The above processor 600 may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the method disclosed in conjunction with the embodiments of the present disclosure can be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium mature in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in the memory 601 , and the processor 600 reads the information in the memory 601 and completes the method steps of the aforementioned embodiment in combination with its hardware.

[0072] The present invention also provides a computer device, which includes a memory and a processor. The memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the processor executes the steps of the anti-mislocking method in the above embodiments.

[0073] The present invention also provides a computer-readable storage medium, which can be a non-volatile computer-readable storage medium or a volatile computer-readable storage medium. The computer-readable storage medium stores instructions, which, when executed on a computer, cause the computer to execute the steps of the anti-mislocking method.

[0074] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0075] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), magnetic disk or optical disk, etc., various media that can store program code.

[0076] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preventing mislocking, applied to a visual grounding load switch device, characterized in that: The visual grounding load switch device includes a DC contactor, a connecting knife switch and a three-position knife switch, wherein the closing auxiliary point of the DC contactor is connected in series with the connecting knife switch, and the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are connected in series with the three-position knife switch. The method includes: Detecting a maintenance status of a vehicle located at a position of the in-depot contact network, and determining a type of locking operation for the in-depot contact network based on the maintenance status; When the locking operation type is a power outage locking operation, detecting whether the closing auxiliary point of the DC contactor is in a closed state, if it is in a closed state, controlling the connecting knife switch to perform an opening operation, detecting whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state, if both are in a closed state, controlling the three-position knife switch to perform a connection position disconnection operation to achieve a power outage operation; When the locking operation type is a power transmission locking operation, detect whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state. If both are in a closed state, control the three-position knife switch to perform the connecting position operation, detect whether the closing position auxiliary point of the DC contactor is in a closed state. If it is in a closed state, control the connecting knife switch to perform the closing operation, and then control the DC contactor to perform the opening operation to realize the power transmission operation.

2. The method for preventing accidental locking according to claim 1, wherein: The connecting knife switch includes a closing control circuit and an opening control circuit connected in parallel, and a first motor connected in series with the closing control circuit and the opening control circuit. The closing auxiliary point of the DC contactor is connected in series with the closing control circuit and the opening control circuit respectively. The controlling the connecting knife switch to perform the opening operation includes: Detecting whether the closing control circuit and the opening control circuit are in the initial state of the power outage locking operation; If so, the opening control circuit is controlled to be closed. Under the drive of the opening control circuit, the first motor rotates in the reverse direction to realize the opening control of the connecting knife switch.

3. The method for preventing accidental locking according to claim 2, characterized in that: The closing control circuit includes a closing switch, a closing coil, and a closing contact; the opening control circuit includes an opening switch, an opening coil, and an opening contact; when the closing coil of the connecting knife switch is energized, the opening contact of the connecting knife switch is driven to disconnect; when the opening coil of the connecting knife switch is energized, the closing contact of the connecting knife switch is driven to disconnect; the detecting whether the opening control circuit and the closing control circuit are in the initial state of the power failure locking operation includes: Detect whether the closing switch and the opening switch of the contact switch are both in the disconnected state; If so, detecting whether the closing contact and the opening contact of the contact switch are in a closed state; If so, it is determined that both the closing control circuit and the opening control circuit are in the initial state of the power outage operation.

4. The method for preventing accidental locking according to claim 3, characterized in that: The connecting knife switch further includes a first control contact and a second control contact, wherein the first control contact controls the reverse rotation of the first motor to drive the connecting knife switch to open, and the second control contact controls the forward rotation of the first motor to drive the connecting knife switch to close, and when the closing control circuit is disconnected, the first control contact is closed, and when the closing control circuit is connected, the first control contact is disconnected, and when the opening control circuit is disconnected, the second control contact is closed, and when the opening control circuit is connected, the second control contact is disconnected, and the opening control circuit is closed. Under the drive of the opening control circuit, the first motor of the connecting knife switch rotates in the reverse direction, including: The opening switch of the connecting knife switch is controlled to be closed to drive the opening coil to operate, the closing contact and the second control contact are disconnected, and the first motor of the connecting knife switch is rotated in the reverse direction.

5. The method for preventing accidental locking according to claim 1, wherein: The three-position knife switch includes an on-position closing control circuit and an on-position opening control circuit connected in parallel, the on-position closing control circuit includes an on-position closing switch, an on-position closing coil and an on-position closing contact, the on-position opening control circuit includes an on-position opening switch, an on-position opening coil and an on-position opening contact, and the control of the three-position knife switch to perform the on-position connection operation includes: Detecting whether the on-position closing control circuit and the on-position opening control circuit are both in the initial state of the power transmission locking operation; If so, the on-position closing switch is controlled to close to drive the on-position closing coil to operate, so as to disconnect the on-position open contact and realize the on-position closing operation of the three-position knife switch.

6. The method for preventing accidental locking according to claim 1, wherein: The visual grounding load switch device further includes a first transfer switch and a second transfer switch connected in series, and before detecting the maintenance status of the vehicle located at the position of the contact network in the depot, further includes: When a local control signal is received, the first transfer switch is controlled to be connected to the local position based on the local control signal, and the second transfer switch is controlled to be connected to the sequence control position or the branch control position to perform the sequence control operation or the branch control operation.

7. The method for preventing accidental locking according to claim 6, characterized in that: The visual grounding load switch device further includes: A sequential control circuit is provided with the second transfer switch, a power-on button, and a power-off button, wherein the power-on button and the power-off button are connected in parallel and then in series with the second transfer switch; A sub-control circuit is provided for the second transfer switch, a contactor closing button, a contactor opening button, a tie knife closing button, a tie knife opening button, an on-position closing button, an on-position opening button, a contact position closing button, and an on-position opening button, wherein the contactor closing button, the contactor opening button, the tie knife closing button, the tie knife opening button, the on-position closing button, and the on-position opening button are connected in parallel and then in series with the second transfer switch, and the contact position closing button and the contact position opening button are connected in parallel and then in series with the first transfer switch; When the visual grounding load switch device is subjected to a sequential control operation, the power supply button or the power off button is triggered to output a corresponding first touch signal, and based on the first touch signal, the visual grounding load switch device is controlled to perform corresponding control actions in a preset sequence to complete the power supply or power off operation; When performing a separate control operation on the visual grounding load switch device, the contactor closing button, the contactor opening button, the connecting knife closing button, the connecting knife opening button, the on-position closing button, the on-position opening button, the contact position closing button or the contact position opening button are triggered separately and step by step to output a corresponding second touch signal. Based on the second touch signal, the DC contactor, the connecting knife switch or the three-position knife switch is controlled to independently perform the corresponding opening and closing operations.

8. An anti-mislocking device, applied to a visual grounding load switch device, characterized in that: The visual grounding load switch device includes a DC contactor, a connecting knife switch and a three-position knife switch, wherein the closing auxiliary point of the DC contactor is connected in series with the connecting knife switch, and the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are connected in series with the three-position knife switch, and the anti-mistake locking device includes: a determination module, configured to detect a maintenance status of a vehicle located at a position of the in-depot contact network, and determine a type of locking operation for the in-depot contact network based on the maintenance status; A power outage operation module is used to detect whether the closing auxiliary point of the DC contactor is in a closed state when the locking operation type is a power outage locking operation; if so, control the connecting knife switch to perform an opening operation; detect whether the opening auxiliary point of the DC contactor and the opening auxiliary point of the connecting knife switch are in a closed state; if both are in a closed state, control the three-position knife switch to perform a connection-disconnection operation to achieve a power outage operation; The power transmission operation module is used to detect whether the open position auxiliary point of the DC contactor and the open position auxiliary point of the connecting knife switch are in a closed state when the locking operation type is a power transmission locking operation. If both are in a closed state, the three-position knife switch is controlled to perform a connecting operation, and detect whether the closing position auxiliary point of the DC contactor is in a closed state. If it is in a closed state, the connecting knife switch is controlled to perform a closing operation, and then the DC contactor is controlled to perform an opening operation to realize the power transmission operation.

9. A computer device, characterized in that: The computer device includes: a memory and at least one processor, wherein instructions are stored in the memory; The at least one processor calls the instructions in the memory to enable the computer device to execute the anti-mislocking method according to any one of claims 1 to 7.

10. A computer-readable storage medium having instructions stored thereon, characterized in that: When the instructions are executed by a processor, the anti-mislocking method according to any one of claims 1 to 7 is implemented.

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