A method, device and storage medium for protecting coupled trains from unexpected movement

Abstract

The present invention relates to a method, device and storage medium for protecting a coupled train from unexpected movement. The method first determines the length of the coupled operation area and the maximum collision speed limit of the coupled operation area 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 from the end of the coupled operation area according to the safety distance to generate a coupled operation protection path. Compared with the prior art, the present invention has the advantages of optimizing the coupling protection influence range, enhancing the protection of coupled trains in abnormal scenarios, and ensuring the safety and efficiency of coupled operations.

Description

Technical Field

[0001] The 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 the urban rail transit signal system, when performing fully automatic coupling operations, the coupled train may move violently when the couplers collide. This unexpected movement may cause 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 operation, which specifically discloses a collision-resistant area based on the set support for train coupling operation, optimizes the calculation of the obstacle point lead distance according to the position relationship between the train and the collision-resistant area, and generates the 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 coupling train approaches and collides with the coupled train at an appropriate speed to complete the coupling operation, and avoids the coupled train from being knocked out of the collision-resistant area. However, the existing patent does not involve protection against unexpected movement of the coupled train during the coupling operation. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a method, device and storage medium for protecting coupled trains from unexpected movement. The maximum collision speed limit of the coupling is accurately calculated according to the train formation type and the coupler attributes, and then the safety distance of the coupling protection zone is calculated according to the train attributes and the maximum collision speed limit of the coupling. The activated coupling operation protection path is selected 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.

[0006] The purpose of the present invention can be achieved by the following technical solutions:

[0007] According to one aspect of the present invention, a method for protecting against unexpected movement of a coupled train is provided. The method first determines the length of the coupled operation area and the maximum collision speed limit for coupling 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 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 according to the safety distance to generate a coupling operation protection path.

[0008] 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.

[0009] As a preferred technical solution, the coupled operation area is configured with supported coupled train marshaling types, and during normal coupling operation, the coupled train marshaling is always completely located in the coupled operation area;

[0010] 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;

[0011] 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.

[0012] 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:

[0013] 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.

[0014] As a preferred technical solution, 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;

[0015] 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.

[0016] As a preferred technical solution, the specific management process of the joint operation process is as follows:

[0017] 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;

[0018] 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;

[0019] Step S3, after the coupling operation is completed, the coupling protection restriction and the coupling locking request are cancelled.

[0020] As a preferred technical solution, the train information requested for the coupling operation in step S1 includes:

[0021] 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.

[0022] As a preferred technical solution, the states of the linked working area and the protection path in step S1 are specifically:

[0023] 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;

[0024] 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.

[0025] As a preferred technical solution, the restriction state of the coupling operation protection path is set in step S1 as follows: the protection area associated with the activated coupling operation protection path is set to a restricted state to prevent other trains from entering, and the hostile area associated with the path is set to an occupied state.

[0026] As a preferred technical solution, the step S2 in which the coupled protection zone is entered without train movement authorization is specifically as follows:

[0027] 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;

[0028] 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 ZC receives the stop guarantee provided by the train, ZC will remove the movement authorization of the train 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 movement authorization can enter.

[0029] 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 described in step S1.

[0030] As a preferred technical solution, the end of the coupling operation in step S3 includes a normal end and an abnormal end of the coupling operation;

[0031] 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;

[0032] 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 not available, or the coupling protection area is not available, or the coupling locking confirmation is not available, or other factors restricting 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 going to couple and the coupled train formation stop according to the ZC prohibition of coupling operation command, the coupling operation ends abnormally.

[0033] As a preferred technical solution, the specific method of canceling the coupling protection restriction in step S3 is as follows:

[0034] 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.

[0035] According to a second aspect of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0036] According to a third aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described above when executed by a processor.

[0037] Compared with the prior art, the present invention has the following advantages:

[0038] 1) The present invention sets 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;

[0039] 2) The present invention accurately calculates the protection range of the coupling operation according to 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 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a flow chart of the method for controlling the linkage operation of the present invention;

[0041] Figure 2 It is a schematic diagram of the protection path of the connected working area of ​​the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] The present invention provides protection for unexpected movement of coupled trains, and is a ZC management method that improves operating efficiency as much as possible under the premise of 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 set will still stop steadily in the coupled operation area after being collided by the de-coupling set. However, when an abnormal situation occurs, the coupled train set may rush out of the coupled operation area. At this time, the coupled train set should immediately trigger emergency braking to avoid rushing out of the coupled protection area and colliding with other trains. At the same time, the de-coupling train set also needs to avoid continuing to collide with the coupled train set.

[0044] The coupled operation area (BCA for short) is a logical section, including 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 mobile authorization to 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 mobile 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.

[0045] 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 farthest operation cannot run 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 the maximum displacement guarantee for coupling collision, this maximum guaranteed displacement is used as the safety distance of the protection area; when the vehicle cannot provide the maximum guaranteed displacement, it is assumed that the coupled train formation is positioned beyond the coupled operation area at the moment, and 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.

[0046] The chain operation protection path (BCA_Protect_Chain for short) calculates the reachable path according to the end point of the chained operation area, the chain direction and the safety distance of the chained protection area. Its configuration information includes the turnout and turnout position information under the path, as well as the path end information. ZC calculates the chain operation protection path activated in the current cycle every cycle, that is, the path where the actual state of the turnout matches the corresponding turnout configuration position in BCA_Protect_Chain.

[0047] The configuration information of BCA_Protect_Chain also includes the path protection zone (Chain_Protect_Zone for short) information under the path. The path protection zone is divided according to the turnouts of the joint operation protection path, and the path protection zone cannot cross both ends of the turnout. The direction of the path protection zone is the direction of entering the BCA_Protect_Chain area without passing through the BCA, which is opposite to the joint direction. If the warning mark of the turnout invades the BCA_Protect_Chain, the area on the other side of the turnout is also added to the path protection zone. The length of the area is determined by the position of the warning mark, and the direction is also the direction of entering the BCA_Protect_Chai area.

[0048] The configuration information of BCA_Protect_Chain also includes the information of the hostile zone (Chain_Conflict_Zone for short) under the path. The path hostile zone is split according to the turnout of BCA_Protect_Chain, and the path hostile zone cannot cross the two ends of the turnout. The direction of the path hostile zone is the direction from which BCA enters the BCA_Protect_Chain area, which is the same as the linkage direction. If there are other protected paths that overlap with the current BCA_Protect_Chain, the overlapping area needs to be added to the path hostile zones of both parties.

[0049] like Figure 1 As shown, the method manages the joint operation process through the following steps:

[0050] Step S1, the zone controller ZC sets the restriction state of the protection path of the coupling operation and initiates a coupling locking request to the interlocking according to the train information of the coupling operation request, the coupled operation area and the protection path state;

[0051] Step S2, the zone controller ZC waits for the authorization to enter the coupled protection zone without train movement and the coupled locking confirmation, and then authorizes the coupled operation;

[0052] Step S3, after the coupling operation is completed, the coupling protection restriction and the coupling locking request are cancelled.

[0053] 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, and the coupled train is in front of its front, the coupled train requests to be coupled, the coupled train is completely located in the BCA and satisfies the marshaling types supported by the BCA, and the coupling and coupled trains can form a legal marshaling; 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.

[0054] 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 area associated with the activated BCA_Protect_Chain to the restricted state to prevent other trains from entering; set the hostile area associated with the activated BCA_Protect_Chain to the occupied state; initiate an interlocking locking request to the interlocking to prevent the movement of the switches in the BCA and activated BCA_Protect_Chain areas.

[0055] Specifically, the ZC authorizes the interlocking operation when the following conditions are met: the protection area associated with the recorded BCA_Protect_Chain does not contain any train movement authorization entry; 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.

[0056] When the above conditions are met, ZC authorizes the coupling operation, allowing the movement authorization of the coupling train set to enter the body of the coupled train set, and prohibiting the coupled train set from calculating the valid movement authorization.

[0057] The completion of the joint hanging operation in step S3 includes normal completion and abnormal completion of the joint hanging operation.

[0058] The coupling operation is judged to have ended normally when the following conditions are met: when the coupled train set is completely located in the coupled operation area and stops steadily, and the coupling between it and the coupling train set is successful; when the coupling train set is stopped steadily, and its head coupler is successfully coupled.

[0059] When one of the following conditions occurs, the coupling operation is judged to be abnormal: 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 occur, in which case a coupling abnormality occurs.

[0060] 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 prohibition of coupling operation command, the coupling operation abnormality ends.

[0061] 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.

[0062] Figure 2 It is a schematic diagram of the protection path of the coupling operation of the present invention. Train T_1 is the coupled train, train T_2 is the uncoupled train, the front direction of T_2 is facing T_1, the front direction of T_2 is the coupling direction, and T_1 is completely in the coupled operation area. The coupled protection area contains a divergent switch P1, and the coupled protection area contains two coupling operation protection paths. The path when the switch is located in the positioning is named BCA_Protect_Chain_1, and the path when the switch is located in the positioning 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 area 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 area includes Z_1 and Z_5.

[0063] The present invention 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 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 coupled 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 of the coupled operation area as the coupled operation protection path. Possible protection paths are determined according to the position of the turnout; when the train coupling operation requires, 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 prior art, 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.

[0064] The above is an introduction to the method embodiment. The following is a further explanation of the scheme of the present invention through electronic equipment and storage medium embodiments.

[0065] 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.

[0066] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunication networks.

[0067] The processing unit performs the various methods and processes described above, such as the method of the present invention. For example, in some embodiments, the method of the present invention 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 method of the present invention described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the method of the present invention by any other appropriate means (e.g., by means of firmware).

[0068] The functions described above herein may be performed at least in part by one or more hardware logic components. For example, 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 chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0069] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes 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 the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0070] 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 equipment. 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, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, 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), an 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.

[0071] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope 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 from the end point of the coupled operation area according to the safety distance to generate the coupled operation protection path; 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 areas with directions, and there is no switch inside the area. The direction of the path protection area is opposite to the coupling direction, and the direction of the path hostile area is the same as the coupling direction. The length of the linked protection zone is determined by the safety distance of the linked protection zone. The specific calculation of the safety distance is: 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.

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 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.

5. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

6. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

7. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

8. A method for protecting coupled trains from unexpected movement according to claim 4, 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 outside the path protection zone and trigger a stop guarantee request. When ZC receives the stop guarantee provided by the train, ZC will remove the movement authorization of the train 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 movement authorization can enter.

9. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

10. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

11. A method for protecting coupled trains from unexpected movement according to claim 4, 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.

12. 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 11 is implemented.

13. 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 11 is implemented.

Images