A method, device, equipment and medium for switching between active and standby positioning of a TACS system

Abstract

The present invention relates to a method, device, equipment and medium for switching between active and standby positioning of a TACS system. The device includes: an active positioning system for sending its health status to a trackside train manager; a standby positioning system, which is independent of the active positioning system and sends its position information to the trackside train manager; an automatic train monitoring system for determining whether to send a train operation task to the active positioning system or the trackside train manager; a trackside train manager for taking over the train after the active positioning system fails and switches to the standby positioning system; and a trackside resource manager for maintaining the resources applied for before the active positioning system fails and sending the applied resources to the trackside train manager after switching to the standby positioning system. Compared with the prior art, the present invention has the advantages of ensuring that the operation mode is not degraded in a train degradation scenario.

Description

Technical Field

[0001] The invention relates to a train signal control system, and in particular to a method, device, equipment and medium for switching between active and standby positioning of a TACS system. Background Art

[0002] In the Train Autonomous Operation System (TACS), trackside secondary detection equipment has been used as a non-essential configuration. During the operation of the train, the train position is calculated autonomously (i.e., primary positioning), and when the train needs to perform interval protection, its precise position is sent to the adjacent train, realizing direct communication between trains.

[0003] When the train's main positioning fails, the train cannot provide its positioning. Therefore, a backup positioning system independent of the onboard system can be added to the train to solve the scenario where the onboard system cannot actively provide accurate train location. After adding the backup positioning system, the following problems still need to be solved:

[0004] 1) How to switch the onboard system for trackside equipment?

[0005] 2) How to maintain and synchronize the resources allocated to the primary vehicle system;

[0006] 3) How to indicate the train operation of the backup positioning system;

[0007] 4) How to provide safety protection for subsequent trains. Summary of the invention

[0008] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a TACS system active-standby positioning switching method, device, equipment and medium.

[0009] The purpose of the present invention can be achieved by the following technical solutions:

[0010] According to a first aspect of the present invention, a method for switching between active and standby positioning of a TACS system is provided, the method comprising the following steps:

[0011] Step S101, the train normally runs in an active positioning mode;

[0012] Step S102: Under normal circumstances, the primary positioning system needs to send its health status to the trackside train manager in real time;

[0013] Step S103, the trackside train manager determines whether to take over the train according to the health status sent by the primary positioning system. If yes, execute step S104, otherwise return to step S102;

[0014] Step S104, after the trackside train manager pre-takes over the train, it communicates with the trackside resource manager, and the trackside resource manager receives resource application and release commands for the train sent by the trackside train manager;

[0015] Step S105, the trackside train manager determines whether the trackside resource manager is ready through the feedback information sent by the trackside resource manager, and if so, executes step S106;

[0016] Step S106: The trackside train manager and the trackside resource manager synchronize train resource information

[0017] Step S107, after the trackside train manager pre-takes over the train, it communicates with the automatic train monitoring system, and the automatic train monitoring system receives the location information of the train sent by the trackside train manager;

[0018] Step S108, the trackside train manager determines whether the automatic train monitoring system is ready through the feedback information sent by the automatic train monitoring system. If yes, execute step S109;

[0019] Step S109, the trackside train manager synchronizes the train operation tasks with the automatic train monitoring system;

[0020] Step S110, the trackside train manager formally takes over the train;

[0021] Step S111: the switching between the primary positioning system and the backup positioning system is completed.

[0022] As a preferred technical solution, in step S101, the train sends its precise positioning information to the trackside resource manager and adjacent trains to realize active application and release of trackside resources.

[0023] As a preferred technical solution, in step S102, the health status of the primary positioning system is used by the trackside train manager to determine whether to take over the train in the event of failure of the primary positioning system.

[0024] As a preferred technical solution, the situation where the judgment is yes in step S103 includes:

[0025] One is to receive the health status sent by the primary positioning system, which cannot provide positioning information;

[0026] The other is that the primary positioning system loses the train-to-ground communication, and the trackside train manager also takes over a train after losing communication with the train.

[0027] As a preferred technical solution, in step S104, the trackside resource manager sends the resource status that the main user system has applied for before failure to the trackside train manager.

[0028] As a preferred technical solution, in the step S105, if not ready, continue to repeatedly send information to the trackside resource manager.

[0029] As a preferred technical solution, in step S106, after the resource information synchronization is completed, the train switched to the backup positioning system runs to the mission end before the switch, and releases unnecessary resources as the train moves.

[0030] As a preferred technical solution, in step S107, the automatic train monitoring system sends the train operation tasks that have been allocated by the main fixed system before failure to the trackside train manager.

[0031] As a preferred technical solution, in the step S108, if not ready, continue to repeatedly send information to the automatic train monitoring system.

[0032] As a preferred technical solution, in step S109, after the operation task is synchronously completed, the train switched to the backup positioning system runs to the task end before the switch, and the train automatic monitoring system continues to assign new tasks to the train and sends them to the trackside train manager.

[0033] As a preferred technical solution, in step S110, after the trackside train manager takes over the train, it receives the train operation task sent by the train automatic monitoring system and sends the train position to the train automatic monitoring system, sends resource application and release commands to the trackside resource manager, and communicates with adjacent trains.

[0034] According to a second aspect of the present invention, there is provided a device for the active / standby positioning switching method of the TACS system, comprising:

[0035] A primary positioning system that sends its health status to the trackside train manager;

[0036] The backup positioning system, which is independent of the primary positioning system, sends its position information to the trackside train manager;

[0037] Automatic train monitoring system, used to determine whether to send train operation tasks to the main positioning system or the trackside train manager;

[0038] Trackside train manager, used to take over the train after the primary positioning system fails and switches to the backup positioning system

[0039] The trackside resource manager is used to maintain the resources applied for before the primary positioning system fails, and after switching to the backup positioning system, send the applied resources to the trackside train manager.

[0040] As a preferred technical solution, the main positioning system is a vehicle-mounted controller.

[0041] As a preferred technical solution, the backup positioning system is installed on the train and is independently configured from the on-board controller.

[0042] According to a third 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.

[0043] According to a fourth 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 when executed by a processor.

[0044] Compared with the prior art, the present invention has the following advantages:

[0045] 1. The present invention provides a switching solution for a TACS signal system that is not equipped with a secondary detection system but is equipped with a train backup positioning system, and the trackside train manager determines the switching timing in real time;

[0046] 2. The present invention realizes a method for synchronizing trackside resources after the switch between the main positioning system and the backup positioning system, ensuring that the train can continue to operate with the support of the backup positioning system after the main positioning system fails;

[0047] 3. The present invention realizes a train operation task synchronization method after the main positioning system and the backup positioning system are switched, ensuring that the train can continue to operate with the support of the backup positioning system after the main positioning system fails;

[0048] 4. After the switching of the present invention is completed (the trackside train manager takes over the train), all vehicle-to-vehicle communication functions can be realized, ensuring that the operation mode is not degraded in the train degradation scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 It is a structural schematic diagram of the main and standby positioning conversion device of the TACS system of the present invention;

[0050] Figure 2 It is a flow chart of the active / standby positioning conversion method of the TACS system of the present invention;

[0051] Figure 3 The figure is a schematic diagram of the implementation process of a specific embodiment of the present invention. DETAILED DESCRIPTION

[0052] 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.

[0053] like Figure 2 As shown, a method for switching between primary positioning and backup positioning in a TACS system includes the following steps:

[0054] Step S101: Under normal circumstances, the train runs in an active positioning mode, sends its precise positioning information to the trackside resource manager and adjacent trains, and realizes active application and release of trackside resources;

[0055] Step S102, in order to implement the switching between the main positioning system and the backup positioning system, under normal circumstances, the main positioning system needs to send its health status to the trackside train manager in real time, so that the trackside train manager can determine to take over the train in case of failure of the main positioning system;

[0056] Step S103, the trackside train manager determines whether to take over the train according to the health status sent by the primary positioning system. There are two situations: one is that the health status sent by the primary positioning system is received, that is, the positioning information cannot be provided; the other is that the primary positioning system loses the train-ground communication, and the trackside train manager also takes over the train after losing the communication with the train;

[0057] Step S104, after the trackside train manager pre-takes over the train, it communicates with the trackside resource manager, and the trackside resource manager needs to receive resource application and release commands for the train sent by the trackside train manager; the trackside resource manager is ready to send the resource status that the main user system has applied for before failure to the trackside train manager;

[0058] Step S105, the trackside train manager determines whether the trackside resource manager is ready through the feedback information sent by the trackside resource manager; if it is not ready, it continues to send information to the trackside resource manager repeatedly; if it is ready, it proceeds to step S106;

[0059] Step S106, the trackside train manager synchronizes train resource information with the trackside resource manager. After the resource information synchronization is completed, the train switched to the backup positioning system can run to the task end before the switch, or release unnecessary resources as the train moves;

[0060] Step S107, after the trackside train manager pre-takes over the train, it communicates with the train automatic monitoring system, and the train automatic monitoring system needs to receive the location information of the train sent by the trackside train manager; the train automatic monitoring system is ready to send the train operation task that has been assigned by the main system before failure to the trackside train manager;

[0061] Step S108, the trackside train manager determines whether the automatic train monitoring system is ready through the feedback information sent by the automatic train monitoring system; if it is not ready, it continues to send information to the automatic train monitoring system repeatedly; if it is ready, it enters step S109;

[0062] Step S109, the trackside train manager synchronizes the train operation tasks with the train automatic monitoring system; after the operation task synchronization is completed, the train switched to the standby positioning system can run to the task end before the switch, and the train automatic monitoring system can also continue to assign new tasks to the train and send them to the trackside train manager;

[0063] Step S110: The trackside train manager formally takes over the train. After taking over the train, it receives the train operation task sent by the train automatic monitoring system, sends the train position to the train automatic monitoring system, sends resource application and release commands to the trackside resource manager, and communicates with adjacent trains;

[0064] Step S111: the switching between the primary positioning system and the backup positioning system is completed.

[0065] Specific implementation cases

[0066] like Figure 3 As shown, the specific implementation process of the present invention is as follows:

[0067] Step 1: Under normal circumstances, the train runs in an active positioning mode. The running task is from station A to station B. Train A applies to the trackside resource manager for the positioning resource of turnout P1 ( Figure 3 (a) in the above;

[0068] Step 2, train A sends its availability status to the trackside train manager in real time during operation;

[0069] Step 3: Train A fails during operation in the section (assuming that all redundant onboard speed measuring devices fail), and Train A reports to the trackside train manager that its positioning is unavailable ( Figure 3 (b) in the above);

[0070] Step 4: The trackside train manager takes over the train in advance according to the unavailable information sent by train A. The train location information is provided by the backup positioning system ( Figure 3 (c)), and sending the information to the trackside resource manager to wait for synchronization of the trackside resource status with the trackside resource manager;

[0071] Step 5: After receiving the feedback information sent by the trackside resource manager, the trackside train manager prepares to synchronize the resource status;

[0072] Step 6: The trackside resource manager sends the turnout P1 resource status to the trackside train manager ( Figure 3 (d) in the above);

[0073] Step 7, the trackside train manager sends the pre-takeover train information to the train automatic monitoring system;

[0074] Step 8: After receiving the feedback information sent by the automatic train monitoring system, the trackside train manager prepares to synchronize task information;

[0075] Step 9: The train automatic monitoring system sends the running task of train A "station A - station B" to the trackside train manager ( Figure 3 (e) in the above);

[0076] Step 10: After the synchronization of resources and tasks is completed, the trackside train manager officially takes over the train and operates it in TACS operation mode ( Figure 3 (f) in the figure.

[0077] The above is an introduction to a method embodiment. The following is a further explanation of the solution of the present invention through an apparatus embodiment.

[0078] like Figure 1 As shown, the device of the present invention comprises:

[0079] Automatic train monitoring system A determines whether to send the train operation task to the main positioning system or the trackside train manager;

[0080] Trackside train manager B takes over the train after the primary positioning system fails and switches to the backup positioning system; receives train operation tasks sent by the automatic train monitoring system and is responsible for direct communication with adjacent TACS trains;

[0081] The trackside resource manager C is used to maintain the resources applied for before the primary positioning system fails, and after switching to the backup positioning system, send the applied resources to the trackside train manager;

[0082] The main positioning system D sends its health status to the trackside train manager;

[0083] The backup positioning system E, which is independent of the primary positioning system, sends its position information to the trackside train manager.

[0084] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0085] 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.

[0086] 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.

[0087] The processing unit performs the various methods and processes described above, such as methods S101 to S111. For example, in some embodiments, methods S101 to S111 may 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 may be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into the RAM and executed by the CPU, one or more steps of methods S101 to S111 described above may be performed. Alternatively, in other embodiments, the CPU may be configured to execute methods S101 to S111 in any other appropriate manner (e.g., by means of firmware).

[0088] 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.

[0089] 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.

[0090] 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.

[0091] 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 switching between active and standby positioning of a TACS system, characterized in that: The method comprises the following steps: Step S101, the train normally runs in an active positioning mode; Step S102: Under normal circumstances, the primary positioning system needs to send its health status to the trackside train manager in real time; Step S103, the trackside train manager determines whether to take over the train according to the health status sent by the primary positioning system. If yes, execute step S104, otherwise return to step S102; Step S104, after the trackside train manager pre-takes over the train, it communicates with the trackside resource manager, and the trackside resource manager receives resource application and release commands for the train sent by the trackside train manager; Step S105, the trackside train manager determines whether the trackside resource manager is ready through the feedback information sent by the trackside resource manager, and if so, executes step S106; Step S106: The trackside train manager and the trackside resource manager synchronize train resource information Step S107, after the trackside train manager pre-takes over the train, it communicates with the automatic train monitoring system, and the automatic train monitoring system receives the location information of the train sent by the trackside train manager; Step S108, the trackside train manager determines whether the automatic train monitoring system is ready through the feedback information sent by the automatic train monitoring system. If yes, execute step S109; Step S109, the trackside train manager synchronizes the train operation tasks with the automatic train monitoring system; Step S110, the trackside train manager formally takes over the train; Step S111, the switching between the main positioning system and the backup positioning system is completed; In step S104, the trackside resource manager sends the resource status that the primary positioning system has applied for before failure to the trackside train manager; In the step S106, after the resource information synchronization is completed, the train that is switched to the backup positioning system runs to the task end before the switch and releases unnecessary resources as the train moves; in the step S107, the train automatic monitoring system sends the train operation task that has been assigned by the main positioning system before failure to the trackside train manager; in the step S109, after the operation task synchronization is completed, the train that is switched to the backup positioning system runs to the task end before the switch, and the train automatic monitoring system continues to assign new tasks to the train and send them to the trackside train manager.

2. A TACS system active / standby positioning switching method according to claim 1, characterized in that: In step S101, the train sends its precise positioning information to the trackside resource manager and adjacent trains to realize active application and release of trackside resources.

3. A TACS system active / standby positioning switching method according to claim 1, characterized in that: In step S102, the health status of the primary positioning system is used by the trackside train manager to determine whether to take over the train in the event of failure of the primary positioning system.

4. A TACS system active / standby positioning switching method according to claim 1, characterized in that: The situation where the judgment is yes in step S103 includes: One is to receive the health status sent by the primary positioning system, which cannot provide positioning information; The other is that the primary positioning system loses the train-to-ground communication, and the trackside train manager also takes over a train after losing communication with the train.

5. A TACS system active / standby positioning switching method according to claim 1, characterized in that: In the step S105, if it is not ready, the information is repeatedly sent to the trackside resource manager.

6. A TACS system active / standby positioning switching method according to claim 1, characterized in that: In the step S108, if it is not ready, the information is repeatedly sent to the automatic train monitoring system.

7. A TACS system active / standby positioning switching method according to claim 1, characterized in that: In step S110, after the trackside train manager takes over the train, it receives the train operation task sent by the train automatic monitoring system and sends the train position to the train automatic monitoring system, sends resource application and release commands to the trackside resource manager, and communicates with adjacent trains.

8. A device for the active / standby positioning switching method of the TACS system according to claim 1, characterized in that: include: A primary positioning system that sends its health status to the trackside train manager; The backup positioning system, which is independent of the primary positioning system, sends its position information to the trackside train manager; Automatic train monitoring system, used to determine whether to send train operation tasks to the main positioning system or the trackside train manager; Trackside train manager, used to take over the train after the primary positioning system fails and switches to the backup positioning system; The trackside resource manager is used to maintain the resources applied for before the primary positioning system fails, and after switching to the backup positioning system, send the applied resources to the trackside train manager.

9. The device according to claim 8, characterized in that The main positioning system is a vehicle-mounted controller.

10. The device according to claim 8, characterized in that The backup positioning system is installed on the train and is independently arranged from the on-board controller.

11. 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 7 is implemented.

12. 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 7 is implemented.

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