A tram vehicle-ground communication method, computer equipment and storage medium

Abstract

The present invention discloses a tram vehicle-to-ground communication method, computer equipment and storage medium, which belongs to the field of tram technology. The equipment on the tram running line is divided into different control objects, and a communication area is divided for each control object: after the tram enters the communication area, the on-board system sends a control command of the control object to the turnout control system, and each communication area is configured with a communication file. When the communication areas overlap, the code corresponding to the overlapping area of ​​the next control object is added to the communication file of the previous control object; the turnout control system merges the same code information representing the same device that appears in different communication areas. The present invention can reduce the complexity of the control processing of the on-board system equipment, effectively reduce the communication bandwidth requirements, and effectively avoid the situation of code overlap.

Description

Technical Field

[0001] The present invention belongs to the field of rail transportation technology, and in particular relates to tram vehicle-ground communication technology. Background Art

[0002] The tram train control system consists of a turnout control system (including turnout controllers and intersection controllers), an onboard system, and a dispatching and command system. The onboard system sends equipment control commands to the turnout control system and obtains equipment status information through wireless communication. To ensure the security of equipment control information, the onboard system and the turnout control system interact with each other through secure code streams, that is, the turnout control system uses the same code table file to manage the status of all equipment within its jurisdiction. When the status of the corresponding equipment changes, the corresponding code position in the code table file is updated.

[0003] If all trams within the jurisdiction of a certain switch control system use the same communication code table file to exchange information with the switch control system, it will cause code position overlap, affecting the safe operation of the trams. At the same time, the interactive file contains a lot of equipment status information, which requires a high wireless communication bandwidth. Summary of the invention

[0004] With respect to the application scenario of trams, the technical problem to be solved by the present invention is to provide a tram vehicle-to-ground communication method based on a communication area, which effectively avoids the situation of code bit coverage and reduces the requirements for wireless communication bandwidth.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A tram vehicle-ground communication method based on communication zones divides the equipment on the tram running line into different control objects, and divides a communication zone for each control object: after the tram enters the communication zone, the on-board system sends a control command of the control object to the turnout control system, and each communication zone is correspondingly configured with a communication file.

[0007] Preferably, the communication areas are independent of each other; or, there are overlapping parts between the communication areas.

[0008] Preferably, when communication areas overlap, the code corresponding to the overlapping area of ​​the next control object is added to the communication file of the previous control object; the turnout control system merges the same code information representing the same device appearing in different communication areas.

[0009] Preferably, a communication area without a control object is set as a default communication area.

[0010] Preferably, the vehicle-mounted system obtains status information of the device through a default communication area.

[0011] Preferably, the communication file contains control information of the vehicle-mounted system on the equipment and status information of the trackside equipment.

[0012] Preferably, the control objects include switch protection signals and intersection signals.

[0013] Preferably, the control command includes a route request and an intersection position status.

[0014] In addition, the present invention also provides a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the tram-to-ground communication method based on a communication zone when executing the program.

[0015] The present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the communication area-based tram vehicle-to-ground communication method is implemented.

[0016] The technical solution adopted by the present invention has the following beneficial effects:

[0017] 1. Each control object is divided into a communication area, and each communication area is configured with a corresponding communication file. In this way, the tram uses different communication files for different control objects, which can reduce the complexity of the control processing of the on-board system equipment and effectively reduce the communication bandwidth requirements.

[0018] 2. The length of the communication area is determined according to actual needs, and overlapping is allowed between communication areas. By configuring the range of the communication area, the trackside equipment can be controlled more flexibly.

[0019] 3. When the communication area overlaps, the code corresponding to the overlapping area of ​​the next control object is added to the communication file of the previous control object. In this way, when the tram is in the overlapping area, the control of the two control objects can be realized. The same code information representing the same device in different communication areas will be merged and processed inside the turnout control system to ensure the uniqueness of code information management, which can solve the problem of code overlap when the turnout control system processes information of multiple trams.

[0020] The specific technical solutions adopted by the present invention and the beneficial effects brought about by them will be disclosed in detail in the following specific embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a schematic diagram of the division of communication areas in the present invention;

[0023] Figure 2 This is a schematic diagram of the division of communication areas in the first application scenario of the present invention;

[0024] Figure 3 This is a schematic diagram of the division of communication areas in the second application scenario of the present invention;

[0025] Figure 4 This is a schematic diagram of the communication area division in the third application scenario of the present invention. DETAILED DESCRIPTION

[0026] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0027] In view of the defects of the prior art, the present invention proposes a vehicle-ground communication method based on communication areas. By dividing the communication areas and configuring different vehicle-ground communication files, the code position overlap can be effectively avoided and the requirements for wireless communication bandwidth can be reduced.

[0028] Embodiment 1

[0029] like Figure 1 As shown in the figure, the equipment on the tram domain operation line is divided into different control objects, which can include turnout protection signals, intersection signals, etc. A communication area is divided for each control object. The length of the communication area is determined according to the actual needs of the project, and overlap between communication areas is allowed. In this way, by configuring the range of the communication area, the trackside equipment can be controlled more flexibly.

[0030] A communication area without a control object can be set as a default communication area.

[0031] After the tram enters the communication area, it sends control commands to the control object to the switch control system, including route requests, intersection position status and other information.

[0032] In the specific implementation, a communication file is configured for each communication area, and the communication file contains the control information of the vehicle-mounted system on the equipment and the status information of the trackside equipment. After the tram enters the communication area, the vehicle-mounted system sends the control command of the control object to the turnout control system, and each communication area is correspondingly configured with a communication file. In this way, the control command of the turnout control system by the vehicle-mounted system is sent to the turnout control system through the communication file of the corresponding communication area, and the status information of all equipment within the control range of the current turnout control system can be sent to the vehicle-mounted system through the communication file. Since the tram uses different communication files for different control objects, the complexity of the vehicle-mounted system equipment control processing can be reduced, and the communication bandwidth requirements can be effectively reduced.

[0033] For the default communication area, it means that there is no actual control object, but the vehicle system can obtain the status information of the device through the default communication area.

[0034] When the communication area overlaps, the code corresponding to the overlapping area of ​​the next control object is added to the communication file of the previous control object. In this way, when the tram is in the overlapping area, the control of the two control objects can be realized. The same code information representing the same device in different communication areas will be merged and processed inside the turnout control system to ensure the uniqueness of code information management, which can solve the problem of code overlap when the turnout control system processes information of multiple trams.

[0035] The following is a description of the technical solution of the specific implementation method in combination with a specific application scenario:

[0036] Application scenario 1

[0037] by Figure 2 For example, each communication area will have a separate communication file. After entering the PS0102 communication area, car A uses the communication file corresponding to the PS0102 communication area to communicate with the turnout control system and send access request information to the turnout control system; car B uses the communication file corresponding to the CS0101 communication area to send information such as announcement, request, occupation, and clearance of the intersection to the turnout control system. The turnout control system uses the communication file corresponding to the corresponding communication area to feed back all equipment status information within the control range of the turnout control system to the on-board system, including code information such as PS0101 and PS0102 signal status, turnout status, and intersection status.

[0038] Application scenario 2

[0039] When the communication areas overlap, Figure 3 For example, if the warning area of ​​the intersection protected by CS0102 overlaps with the route request area of ​​PS0102, the warning code bit of CS0102 is added to the communication file of PS0102 during data configuration; similarly, the route request code bit of PS0101 is added to the communication file of CS0101. When the tram is in the overlapping area A, the communication file of PS1102 is used to send the route request information of PS1102 and the warning information of CS0102 to the turnout control system at the same time. When the turnout control system performs equipment status management, the route request code bit of PS1102 and the warning code bit of CS0102 are set to 1. When the front of the tram passes the PS0102 signal, the on-board system uses the communication file of CS0102 for vehicle-to-ground communication.

[0040] Application scenario three

[0041] by Figure 4For example, by configuring an advance signal in front of the actual switch protection signal, by adjusting the communication area of ​​the PS0104 signal, the tram can apply to the switch control system for the PS0102 protection route and the PS0104 protection route at the overlapping position of the communication areas in the figure, which can effectively improve the traffic efficiency of the tram.

[0042] Embodiment 2

[0043] A computer device comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, a vehicle-to-ground communication method based on a communication zone as described in the first embodiment is implemented.

[0044] The computer device in the embodiment of the present invention may include but is not limited to mobile terminals such as mobile phones, notebook computers, PDAs (personal digital assistants), PADs (tablet computers), etc., and fixed terminals such as desktop computers, etc.

[0045] Computer equipment may include a processing device (e.g., a central processing unit) that can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) or a program loaded from a storage device into a random access memory (RAM). In the RAM, various programs and data required for the operation of the computer equipment are also stored. The processing device, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0046] The computer program carried on a computer-readable medium includes a program code for executing an algorithm. In such an embodiment, the computer program can be downloaded and installed from a network through a communication device, or installed from a storage device, or installed from a ROM. When the computer program is executed by a processing device, the above functions defined in the method of the embodiment of the present disclosure are executed.

[0047] It should be noted that the computer-readable medium disclosed in the present invention may be a computer-readable signal medium or a computer-readable medium or any combination of the two.

[0048] The computer-readable medium may be included in the computer device, or may exist independently without being incorporated into the computer device.

[0049] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A tram vehicle-to-ground communication method based on a communication area, characterized in that: The equipment on the tram running line is divided into different control objects, and a communication area is divided for each control object: after the tram enters the communication area, the on-board system sends a control command of the control object to the switch control system, and each communication area is correspondingly configured with a communication file, and the communication areas are independent of each other; or, there are overlapping parts between the communication areas. When the communication areas overlap, the code position corresponding to the overlapping area of ​​the next control object is added to the communication file of the previous control object; the switch control system merges the same code position information representing the same equipment appearing in different communication areas, and sets the communication area without a control object as a default communication area. The on-board system obtains the status information of the equipment through the default communication area.

2. A tram vehicle-to-ground communication method based on a communication area according to claim 1, characterized in that: The control objects include switch protection signals and intersection signals.

3. A tram vehicle-to-ground communication method based on a communication area according to claim 1, characterized in that: The control command includes route request and intersection position status.

4. A computer device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the tram vehicle-to-ground communication method based on the communication area as described in any one of claims 1 to 3 is implemented.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, a tram vehicle-to-ground communication method based on a communication area as claimed in any one of claims 1 to 3 is implemented.

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