Method and device for protecting coupled trains from unintended movement, and storage medium

Abstract

A method for protecting coupled trains from unintended movement. The method comprises: firstly, according to a train marshalling type and coupler attribute information, determining the length of a coupled operation zone and the maximum speed limit for coupling collision of the coupled operation zone, then calculating a safety distance for a coupled protection zone according to train attributes and the maximum speed limit for coupling collision of the coupled operation zone, and finally calculating, according to the safety distance, all possible chains in a coupling direction from an end point of the coupled operation zone, so as to generate a coupling operation protection chain, wherein a coupling operation process is as follows: according to train information in a coupling operation request, a coupled operation zone and a protection chain state, a zone controller ZC setting a restriction state for a coupling operation protection chain and initiating a coupling locking request to an interlocking system (S1); once it is confirmed that no train movement authorization accesses the coupled protection zone and no coupling locking occurs therein, the zone controller ZC authorizing a coupling operation (S2); and after the coupling operation is finished, cancelling coupling protection restrictions and the coupling locking request (S3), such that the impact range of coupling protection can be optimized, the protection of coupled trains in abnormal scenarios can be enhanced, and safe and efficient coupling operations can be ensured. Further provided are an electronic device for protecting coupled trains from unintended movement, and a computer-readable storage medium.

Description

Method, device and storage medium for protecting coupled train from unexpected movement Technical Field

[0001] The present invention relates to an urban rail transit signal system, and in particular to a method, a device and a storage medium for protecting a coupled train from unexpected movement. Background Art

[0002] In urban rail transit signal systems, when fully automatic coupling operations are performed, the coupled train may move violently when the couplers collide. This unexpected movement may lead to serious traffic safety accidents, such as the coupled train entering the unlocked area of ​​the switch, causing derailment, or colliding with other trains.

[0003] Therefore, it is a technical problem that needs to be solved to protect the coupled train from unexpected movement during the coupling operation, prevent other trains from colliding or side-rushing with it, optimize the impact range of the coupling protection, enhance the protection of the coupled train in abnormal scenarios, and ensure the safety and efficiency of the coupling operation.

[0004] After searching, Chinese patent publication number CN115892142A discloses a method, device and medium for generating movement authorization for train coupling operations. Specifically, it discloses a collision-resistant area based on the set support for train coupling operations, optimizes the calculation of the lead distance of the obstacle point according to the position relationship between the train and the collision-resistant area, and generates a final movement authorization by setting the movement authorization speed limit point and adjusting the obstacle point on the basis of the collision-resistant movement authorization, so that the uncoupling train approaches and collides with the coupled train at an appropriate speed to complete the coupling operation and prevent the coupled train from being knocked out of the collision-resistant area. However, this existing patent does not involve protection against unexpected movement of the coupled train during the coupling operation.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a method, equipment and storage medium for protecting coupled trains from unexpected movement, accurately calculate the maximum collision speed limit of the coupling according to the train formation type and coupler properties, and then calculate the safe distance of the coupling protection zone according to the train properties and the maximum collision speed limit of the coupling, and select the activated coupling operation protection path for protection according to the real-time vehicle and line status, thereby reducing the impact range of the coupling protection and ensuring the safety and efficiency of the coupling operation.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] According to one aspect of the present invention, a method for protecting a coupled train from unexpected movement is provided. The method first determines the length of the coupled operation area and the maximum collision speed limit for coupling based on the train formation type and coupler attribute information, then calculates the safety distance of the coupled protection area based on the train attributes and the maximum collision speed limit for coupling in the coupled operation area, and finally calculates all possible paths along the coupling direction starting from the end point of the coupled operation area based on the safety distance to generate a coupling operation protection path.

[0009] As a preferred technical solution, the coupled operation area is a logical section, including a starting point, an end point and a coupling direction, wherein the coupling direction is the running direction of the coupling train when performing the coupling operation.

[0010] As a preferred technical solution, the coupled operation area is configured with supported coupled train formation types, and during normal coupling operation, the coupled train formation is always completely located in the coupled operation area;

[0011] The coupled operation area is a collision-prone area, and the speed limit of the collision-prone area is set to the maximum collision speed of the coupling;

[0012] All line objects in the coupled operation area that restrict the train from moving in the coupling direction are also arranged in the coupled operation area.

[0013] As a preferred technical solution, the length of the linked protection zone is determined by the safety distance of the linked protection zone, and the safety distance is specifically calculated as:

[0014] If the coupled train can provide a guaranteed maximum displacement after the coupling collision, then this maximum guaranteed displacement will be used as the safe distance of the protection zone; otherwise, assuming that the train speed at the moment the coupled train formation is positioned beyond the coupled operation area is the maximum collision speed limit of the coupling and has the maximum traction acceleration, considering the worst train traction removal delay and brake application delay, the running distance of the train during the emergency braking to stop will be used as the safe distance of the coupled protection zone.

[0015] As a preferred technical solution, the configuration information of the coupling operation protection path includes the turnouts, turnout location information and path end information under the path, the path protection zone and hostile zone information under the path, and all line objects in the path that restrict the movement of trains in the coupling direction;

[0016] The path protection zone and the hostile zone are both directional areas, and there are no switches inside the areas. The direction of the path protection zone is opposite to the coupling direction, and the direction of the path hostile zone is the same as the coupling direction.

[0017] As a preferred technical solution, the specific management process of the joint operation process is as follows:

[0018] Step S1: The zone controller ZC sets the restriction status of the coupling operation protection path and initiates a coupling locking request to the interlocking system based on the train information of the coupling operation request, the coupled operation area and the protection path status;

[0019] Step S2: The zone controller ZC waits for the entry of no train movement authorization into the coupled protection zone and the coupled locking confirmation, and then authorizes the coupled operation;

[0020] Step S3: After the coupling operation is completed, the coupling protection restriction and the coupling locking request are cancelled.

[0021] As a preferred technical solution, the train information requested for the coupling operation in step S1 includes:

[0022] The train to be coupled requests coupling, and the train to be coupled is in front of its locomotive. The train to be coupled requests coupling, and the train to be coupled is completely located in the coupled operation area and meets the type of trains supported by the coupled operation area. The train to be coupled and the train to be coupled can form a legal train set.

[0023] As a preferred technical solution, the states of the linked working area and the protection path in step S1 are specifically:

[0024] The coupled operation area is available, that is, all line objects in the coupled operation area that restrict train movement in the coupling direction are in the permitted state;

[0025] The activated coupling operation protection path is valid. All line objects in the path that restrict train movement in the de-coupling direction are in the permitted state. The hostile areas associated with the path are not occupied, and no other trains enter the protection path.

[0026] As a preferred technical solution, the restriction state of the coupling operation protection path is set in step S1 as follows: the protection zone associated with the activated coupling operation protection path is set to a restricted state to prevent other trains from entering, and the hostile zone associated with the path is set to an occupied state.

[0027] As a preferred technical solution, the step S2 in which the coupled protection zone is entered without train movement authorization is specifically as follows:

[0028] When the protection zone associated with the activated linked operation protection path is set to restricted, ZC will not allow movement authorization to enter the area along the path protection zone direction;

[0029] If a train's movement authorization has entered this area, the new movement authorization will retract outside the path protection zone and trigger a stop guarantee request. When the ZC receives the stop guarantee provided by the train, the ZC will remove the vehicle's movement authorization recorded in the path protection zone; if the protection zone does not contain any train's movement authorization, it is determined that the protection zone can guarantee that no train's movement authorization can enter.

[0030] As a preferred technical solution, the interlocking confirmation in step S2 is: the ZC receives the interlocking confirmation message sent by the interlocking system, and the ZC determines that the message is a response of the interlocking system to the interlocking request message in step S1.

[0031] As a preferred technical solution, the completion of the coupling operation in step S3 includes a normal completion and an abnormal completion of the coupling operation;

[0032] The coupling operation is considered to be completed normally when the coupled train set is completely located in the coupled operation area and stops steadily, and the coupler between it and the uncoupled train set is successfully coupled, and the uncoupled train set stops steadily and its head coupler is successfully coupled.

[0033] The abnormal end of the coupling operation is specifically as follows: when the coupled train formation is not located in the coupled operation area, or the coupled operation area is unavailable, or the coupling protection area is unavailable, or the coupling locking confirmation is unavailable, or other factors that restrict the coupling operation appear, it is determined that a coupling abnormality has occurred; when a coupling abnormality occurs, ZC will start the timer, not authorize the train to perform the coupling operation, and set the coupled operation area to a restricted state, prohibiting any train from entering or leaving the coupled operation area; when the timer expires, or the trains to be coupled and the coupled train formation stop according to the ZC prohibition of coupling operation command, the coupling operation ends abnormally.

[0034] As a preferred technical solution, the specific method of canceling the coupling protection restriction in step S3 is as follows:

[0035] The path protection zone associated with the linked operation protection path will be unset to the restricted state, and its associated path hostile zone will also be unset to the occupied state; if the linked operation ends abnormally, the linked operation area will be unset to the restricted state.

[0036] According to a second aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0037] According to a third aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0038] Compared with the prior art, the present invention has the following advantages:

[0039] 1) The present invention provides a coupled operation area, a coupled protection area, and a coupled operation protection path to ensure that when the coupled train formation moves unexpectedly, other trains will not collide with it or collide with it;

[0040] 2) The present invention accurately calculates the coupling operation protection range based on the train formation type, vehicle coupler properties and line information, and selects the activated coupling operation protection path and the coupled operation area for protection based on the real-time vehicle and line status, thereby reducing the coupling protection impact range and ensuring the safety and efficiency of the coupling operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] FIG1 is a schematic flow chart of a method for controlling a linked operation according to the present invention;

[0042] FIG2 is a schematic diagram of the protection path of the coupled working area of ​​the present invention. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0044] The present invention provides protection for unexpected movement of coupled trains and a ZC management method that maximizes operating efficiency while ensuring the safety of coupling operations. The method is based on a specific area that supports train coupling operations, which consists of a coupled operation area and a coupled protection area. Under normal circumstances, the coupled train formation will still stop steadily in the coupled operation area after being collided with the decoupling formation. However, when an abnormal situation occurs, the coupled train formation may rush out of the coupled operation area. At this time, the coupled train formation should immediately trigger emergency braking to avoid rushing out of the coupled protection area and colliding with other trains. At the same time, the decoupling train formation also needs to avoid continuing to collide with the coupled train formation.

[0045] The coupled operation area (BCA for short) is a logical section, which includes a starting point, an end point and a coupling direction, and the direction from the starting point to the end point conforms to the coupling direction. The coupled operation area is configured with supported coupled train formation types, and different coupled train formation types require different lengths of the coupled operation area. The coupled operation area is also declared as a collision-prone area so that the movement authorization of the coupled train formation can approach the coupled train formation. The speed limit of the collision-prone area is set to the maximum coupling collision speed. When there are no line object factors that restrict the entry of the movement authorization in the coupled operation area (such as fully automatic protection area, emergency evacuation protection area, derailment protection area, etc.), the coupled operation area is determined to be available.

[0046] The coupled operation area is associated with the coupled protection area. When the coupled train formation unexpectedly moves beyond the coupled operation area during the coupling operation, the longest run is impossible to break out of this area. The length of this area is determined by the safety distance of the coupling protection area. If the coupled train formation can provide a guaranteed maximum displacement for coupling collision, this maximum guaranteed displacement is used as the safety distance of the protection area; when the vehicle cannot provide this maximum guaranteed displacement, assuming that the coupled train formation is positioned beyond the coupled operation area at the moment, its speed is the maximum coupling collision speed limit and has the maximum traction acceleration. Considering the worst train traction removal delay and brake application delay, the running distance during the train emergency braking until the stop is used as the safety distance of the coupled protection area.

[0047] The chained operation protection chain (BCA_Protect_Chain) calculates a reachable path based on the endpoint of the chained operation area, the chaining direction, and the safety distance to the chained protection area. Its configuration information includes the switches and their positions along the path, as well as the path endpoint. Each cycle, the ZC calculates the active chained operation protection chain, i.e., the path where the actual switch status matches the corresponding switch configuration position in the BCA_Protect_Chain.

[0048] The BCA_Protect_Chain configuration also includes information about the path protection zone (Chain_Protect_Zone) for that path. This path protection zone is divided based on the switches in the chained operation protection path, and the path protection zone cannot span across both ends of the switch. The direction of the path protection zone is the direction of entry into the BCA_Protect_Chain area without passing through the BCA, which is opposite to the chained direction. If the warning beacon of the switch intrudes into the BCA_Protect_Chain, the area on the other side of the switch is also added to the path protection zone. The length of this area is determined by the position of the warning beacon, and the direction is also the direction of entry into the BCA_Protect_Chain area.

[0049] The BCA_Protect_Chain configuration also includes information about the conflict zone (Chain_Conflict_Zone) for that path. This conflict zone is split based on the BCA_Protect_Chain's switches, and cannot span across both ends of a switch. The conflict zone's direction is the direction from which the BCA enters the BCA_Protect_Chain, which is the same as the chaining direction. If other protected paths overlap with the current BCA_Protect_Chain, the overlapping area must also be added to the conflict zones of both parties.

[0050] As shown in Figure 1, the method manages the joint operation process through the following steps:

[0051] Step S1: The zone controller ZC sets the restriction state of the coupling operation protection path and initiates a coupling locking request to the interlocking system according to the train information of the coupling operation request, the coupled operation area and the protection path status;

[0052] Step S2: The zone controller ZC waits for the authorization to enter the coupled protection zone without train movement and the coupled locking confirmation before authorizing the coupled operation.

[0053] Step S3: After the coupling operation is completed, the coupling protection restriction and the coupling locking request are cancelled.

[0054] Specifically, the step S1 is as follows: ZC starts the coupling operation process when the following conditions are met: the train to be coupled requests coupling, the coupled train is in front of its locomotive, the coupled train requests to be coupled, the coupled train is completely located in the BCA and meets the types of formations supported by the BCA, and the coupling and coupled trains can form a legal formation; the BCA is available, that is, all line objects in the coupled operation area that restrict the movement of trains in the coupling direction are in a permitted state; the activated BCA_Protect_Chain is valid, and all line objects in the path that restrict the movement of trains in the decoupling direction are in a permitted state, none of the hostile areas associated with the path are occupied, and no other train enters the protection path.

[0055] When the above conditions are met, ZC starts the interlocking operation and executes the following processes: record the activated BCA_Protect_Chain and the interlocking train formation information; set the protection zone associated with the activated BCA_Protect_Chain to the restricted state to prevent other trains from entering; set the hostile zone associated with the activated BCA_Protect_Chain to the occupied state; initiate an interlocking locking request to the interlocking to prevent the movement of switches in the BCA and activated BCA_Protect_Chain areas.

[0056] Specifically, the ZC authorizes the interlocking operation when the following conditions are met: the protection zone associated with the recorded BCA_Protect_Chain does not contain any train movement authorization to enter; the ZC receives the interlocking locking confirmation message sent by the interlocking, and the ZC determines that the message is the interlocking response to the interlocking locking request message described in step S1.

[0057] When the above conditions are met, ZC authorizes the coupling operation, allowing the movement authorization of the coupling train formation to enter the body of the coupled train formation, and prohibiting the coupled train formation from calculating the valid movement authorization.

[0058] The completion of the linking operation in step S3 includes normal completion and abnormal completion of the linking operation.

[0059] The coupling operation is judged to have ended normally when the following conditions are met: when the coupled train formation is completely located in the coupled operation area and stops steadily, and the coupling between it and the uncoupling train formation is successful; when the uncoupling train formation stops steadily, and its head coupler is successfully coupled.

[0060] When one of the following conditions occurs, the coupling operation is judged to be abnormal: the coupled train set is not located in the coupled operation area; or the coupled operation area is unavailable; or the coupling protection area is unavailable; or the coupling locking confirmation is unavailable; or other factors that restrict the coupling operation occur, it is judged that a coupling abnormality has occurred.

[0061] When a coupling anomaly occurs, the ZC will start a timer, denying authorization for train coupling operations and setting the coupled area to a restricted state, prohibiting any train from entering or leaving the coupled area. The coupling anomaly ends when the timer expires, or when both the coupling train and the coupled train come to a complete stop in accordance with the ZC's prohibit coupling anomaly command.

[0062] After the step S3 linkage operation is completed, ZC will cancel the path protection area associated with the recorded BCA_Protect_Chain and set it to the restricted state, and its associated path hostile area will also be canceled from the occupied state; if the linkage operation ends abnormally, the linked operation area will be canceled from the restricted state.

[0063] Figure 2 is a schematic diagram of the coupling operation protection path of the present invention. Train T_1 is the coupled train, and train T_2 is the uncoupled train. The front of T_2 is facing T_1, and the front direction of T_2 is the coupling direction. T_1 is completely within the coupled operation area. The coupled protection area contains a divergent switch P1. The coupled protection area contains two coupling operation protection paths. The path when the switch is in the positioning position is named BCA_Protect_Chain_1, and the path when the switch is in the positioning position is named BCA_Protect_Chain_2. The path protection area of ​​the coupling operation protection path THA_Protect_Chain_1 includes Z_3, Z_4 and Z_6, among which Z_6 is used for side impact protection; its path hostile area includes Z_1 and Z_2. The path protection zone of the chain operation protection path THA_Protect_Chain_2 includes Z_3, Z_6 and Z_4, among which Z_4 is used for side impact protection; its path hostile zone includes Z_1 and Z_5.

[0064] The present invention first determines the length of the coupled operation area and the maximum collision speed limit of the coupling according to the train formation type and coupler attributes, and then optimizes and calculates the safety distance of the protection area according to the train attributes and the maximum collision speed limit of the coupled operation area. During the coupling operation, the coupled train formation is located in the coupled operation area. After a collision, its unexpected movement does not exceed the safety distance. All possible paths reached by the safety distance are searched outward from the end point of the coupled operation area as the coupled operation protection path. The possible protection path is determined according to the position of the switch; when the train coupling operation is required, the protection path is set to a restricted state to prevent other trains from entering; when the coupling operation is abnormal, the coupled operation area is also set to a restricted state to prohibit any train from entering and leaving the area. Compared with the existing technology, the present invention optimizes the coupling protection influence range, enhances the protection of coupled trains in abnormal scenarios, and ensures the safety and efficiency of the coupling operation.

[0065] The above is an introduction to a method embodiment. The following further illustrates the solution of the present invention through an electronic device and a storage medium embodiment.

[0066] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0067] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0068] The processing unit performs the various methods and processes described above, such as the inventive method. For example, in some embodiments, the inventive method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the inventive method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the inventive method by any other appropriate means (e.g., by means of firmware).

[0069] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0070] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0071] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A method for protecting coupled trains from unexpected movement, characterized in that: The method first determines the length of the coupled operation area and the maximum collision speed limit of the coupled operation according to the train formation type and coupler attribute information, then calculates the safety distance of the coupled protection area according to the train attributes and the maximum collision speed limit of the coupled operation area, and finally calculates all possible paths along the coupling direction starting from the end point of the coupled operation area according to the safety distance to generate a coupling operation protection path.

2. A method for protecting coupled trains from unexpected movement according to claim 1, characterized in that: The coupled operation area is a logical section, including a starting point, an end point and a coupling direction, wherein the coupling direction is the running direction of the coupling train when the coupling operation is performed.

3. A method for protecting coupled trains from unexpected movement according to claim 1, characterized in that: The coupled operation area is configured with supported coupled train formation types, and during normal coupled operation, the coupled train formation is always completely located in the coupled operation area; The coupled operation area is a collision-prone area, and the speed limit of the collision-prone area is set to the maximum collision speed of the coupling; All line objects in the coupled operation area that restrict the movement of the train in the coupling direction are also configured in the coupled operation area.

4. A method for protecting coupled trains from unexpected movement according to claim 1, characterized in that: The length of the linked protection zone is determined by the safety distance of the linked protection zone, and the safety distance is specifically calculated as: If the coupled train can provide a guaranteed maximum displacement after the coupling collision, then this maximum guaranteed displacement will be used as the safe distance of the protection zone; otherwise, assuming that the train speed at the moment the coupled train formation is positioned beyond the coupled operation area is the maximum collision speed limit of the coupling and has the maximum traction acceleration, considering the worst train traction removal delay and brake application delay, the running distance during the train emergency braking to stop will be used as the safe distance of the coupled protection zone.

5. A method for protecting coupled trains from unexpected movement according to claim 1, characterized in that: The configuration information of the coupling operation protection path includes the turnouts, turnout position information and path end information under the path, the path protection area and hostile area information under the path, and all line objects in the path that restrict the movement of trains in the coupling direction; The path protection area and the hostile area are both directional areas, and there are no switches inside the area. The direction of the protection zone is opposite to the linkage direction, and the direction of the path hostile zone is the same as the linkage direction.

6. A method for protecting coupled trains from unexpected movement according to claim 1, characterized in that: The specific management process of the joint operation process is as follows: Step S1, the zone controller ZC sets the restriction state of the interlocking operation protection path and initiates an interlocking locking request to the interlocking system according to the train information of the interlocking operation request, the interlocking operation area and the protection path state; Step S2, the zone controller ZC waits for the entry of no train movement authorization and the locking of the coupling protection area to be connected, and then authorizes the coupling operation; Step S3, after the coupling operation is completed, the coupling protection restriction and the coupling locking request are cancelled.

7. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The train information requested for the coupling operation in step S1 includes: The train to be coupled requests coupling, and the train to be coupled is in front of its locomotive, the train to be coupled requests to be coupled, the train to be coupled is completely located in the coupled operation area and satisfies the marshaling types supported by the coupled operation area, the coupling and the coupled train marshaling can form a legal marshaling.

8. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The states of the linked working area and the protection path in step S1 are specifically: The coupled operation area is available, that is, all line objects in the coupled operation area that restrict the movement of trains in the coupling direction are in the permitted state; The activated coupling operation protection path is valid. All line objects in the path that restrict the movement of trains in the direction of de-coupling are in the permitted state, the hostile areas associated with the path are not occupied, and no other trains enter the protection path.

9. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The restriction state of the coupling operation protection path is set in step S1 as follows: the protection zone associated with the activated coupling operation protection path is set to a restriction state to prevent other trains from entering, and the hostile zone associated with the path is set to an occupied state.

10. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The specific steps of step S2 in which the coupled protection zone is entered without train movement authorization are: When the protection zone associated with the activated joint operation protection path is set to restricted, ZC will not allow movement authorization to enter the area along the path protection zone direction; If a train's movement authorization has entered this area, the new movement authorization will retract to the outside of the path protection area and trigger a stop guarantee request. When ZC receives the stop guarantee provided by the train, ZC will stop the train in the path protection area. The recorded movement authorization of the vehicle is removed; if the protection zone does not contain any movement authorization for any train, it is determined that the protection zone can ensure that no train movement authorization enters.

11. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The interlocking confirmation in step S2 is: the ZC receives the interlocking confirmation message sent by the interlocking system, and the ZC determines that the message is a response of the interlocking system to the interlocking request message in step S1.

12. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The end of the coupling operation in step S3 includes a normal end and an abnormal end of the coupling operation; The coupling operation is normally completed specifically when: when the coupled train set is completely located in the coupled operation area and stops steadily, and the coupler between it and the coupling train set is successfully coupled, and the coupling train set is stopped steadily and its head coupler is successfully coupled, the coupling operation is determined to be normally completed; The abnormal termination of coupling operation is specifically: when the coupled train formation is not located in the coupled operation area, or the coupled operation area is unavailable, or the coupling protection area is unavailable, or the coupling locking confirmation is unavailable, or other factors restricting the coupling operation appear, it is determined that coupling abnormality occurs; When a coupling abnormality occurs, ZC will start the timer, not authorize the train to perform coupling operations, and set the coupled operation area to a restricted state, prohibiting any train from entering or leaving the coupled operation area; when the timer expires, or the trains to be coupled and the trains to be coupled stop according to the ZC's command to prohibit coupling operations, the coupling operation abnormality ends.

13. A method for protecting coupled trains from unexpected movement according to claim 6, characterized in that: The specific steps of canceling the linkage protection restriction in step S3 are as follows: The path protection zone associated with the linked operation protection path will be unset to the restricted state, and its associated path hostile zone will also be unset to the occupied state; if the linked operation ends abnormally, the linked operation area will be unset to the restricted state.

14. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 13 is implemented.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 13 is implemented.

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