CN116061994A - A tram-to-ground communication method, computer equipment, and storage medium - Google Patents

Abstract

The invention discloses a tramcar ground communication method, computer equipment and a storage medium, which belong to the technical field of tramcars, divide equipment on a tramcar operation line into different control objects, and divide a communication area for each control object: after the tramcar enters the communication areas, the vehicle-mounted system sends a control command of a control object to the turnout control system, and each communication area is correspondingly provided with a communication file. When the communication areas overlap, adding the code bit corresponding to the overlapping area of the next control object in the communication file of the previous control object; the switch control system combines the same code bit information representing the same equipment which appears in different communication areas. The invention can reduce the complexity of control processing of the vehicle-mounted system equipment, effectively reduce the communication bandwidth requirement and effectively avoid the condition of code bit coverage.

Description

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

technical field

The invention belongs to the technical field of rail transit, and in particular relates to the communication technology of tramcars.

Background technique

The tram train control system is composed of a turnout control system (including a turnout controller and an intersection controller), an on-board system, and a dispatching command system. The on-board system sends equipment control commands and obtains equipment status information to the switch control system through wireless communication. In order to ensure the safety of equipment control information, the on-board system and the turnout control system realize the information interaction through the safe code flow, that is, the turnout control system uses the same code table file for state management of all equipment within the jurisdiction, when the corresponding When the device status changes, the corresponding code points in the code table file are updated.

If all the trams within the jurisdiction of a turnout control system use the same communication code table file to interact with the turnout control system, it will lead to code bit coverage and affect the safe operation of the trams. At the same time, the interaction file contains a lot of device status information, which requires high bandwidth for wireless communication.

Contents of the invention

For the application scenario of trams, the technical problem to be solved by the present invention is to provide a communication method for trams based on the communication area, which can effectively avoid the situation of code bit coverage and reduce the requirements for wireless communication bandwidth.

In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:

A tram-to-ground communication method based on the communication area, which divides the equipment on the tram line into different control objects, and divides a communication area for each control object: after the tram enters the communication area, The on-board system sends the control commands of the control objects to the turnout control system, and each communication area is correspondingly configured with a communication file.

Preferably, the communication areas are independent of each other; or, there is no overlap between the communication areas.

Preferably, when the communication area overlaps, the code bit corresponding to the overlapping area of the latter control object is added in the communication file of the previous control object; the turnout control system will appear in different communication areas to represent the same code bit of the same equipment Information is merged.

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

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

Preferably, the communication file includes control information of the vehicle-mounted system on the equipment and status information of the trackside equipment.

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

Preferably, the control command includes route request and intersection position status.

In addition, the present invention also provides a computer device, including a memory, a processor, and a computer program stored on the memory and operable on the processor. When the processor executes the program, the above-mentioned A vehicle-to-ground communication method for trams based on a communication area.

The present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned communication method for a tram based on a communication area is realized.

The technical scheme adopted in the present invention has the following beneficial effects:

1. Each control object is divided into a communication area, and each communication area is correspondingly configured with a 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 communication bandwidth requirements.

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

3. When the communication areas overlap, add the code bit corresponding to the overlapping area of the latter control object in 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. Inside the turnout control system, the same code bit information representing the same equipment appearing in different communication areas is merged to ensure the uniqueness of the code bit information management, which can solve the problem of code bit coverage when the turnout control system processes the information of multiple trams Condition.

The specific technical solutions adopted by the present invention and the beneficial effects brought by them will be disclosed in detail in the following specific implementation manners combined with the accompanying drawings.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

Fig. 1 is a schematic diagram of communication area division in the present invention;

Fig. 2 is a schematic diagram of division of communication areas in application scenario 1 of the present invention;

Fig. 3 is a schematic diagram of communication area division in application scenario 2 of the present invention;

FIG. 4 is a schematic diagram of division of communication areas in application scenario 3 of the present invention.

Detailed ways

The technical solutions of the embodiments of the present invention will be explained and described below in conjunction with the accompanying drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all of them. Based on the examples in the implementation manners, other examples obtained by those skilled in the art without making creative efforts all belong to the protection scope of the present invention.

Aiming at the defects existing in the prior art, the present invention proposes a vehicle-to-ground communication method based on the communication area. By dividing the communication area and configuring different vehicle-to-ground communication files, the situation of code bit coverage can be effectively avoided, and at the same time, the wireless communication bandwidth is reduced. requirements.

Embodiment one

As shown in Figure 1, the equipment on the running line of the tram domain is divided into different control objects, and these equipment or control objects can include turnout protection signals, intersection signals, etc. Divide a communication area for each control object. The length of the communication area is determined according to the actual needs of the project, and overlapping between communication areas is allowed. In this way, by configuring the scope of the communication area, the wayside equipment can be controlled more flexibly.

The communication area without control object can be set as the default communication area.

After the tram enters the communication area, it sends the control command of the control object to the turnout control system, including the route request, intersection position status and other information.

During the specific implementation, a communication file is configured for each communication area, and the communication file includes the control information of the on-board system to the equipment and the status information of the trackside equipment. After the tram enters the communication area, the on-board system sends the control command of the control object to the turnout control system, and a corresponding communication file is configured for each communication area. In this way, the on-board system sends the control command of the turnout control system to the turnout control system through the communication file in the corresponding communication area, and all the equipment status information within the control range of the current turnout control system can be sent to the on-board system through the communication file. Since the tram uses different communication files for different control objects, it can reduce the complexity of the control processing of the on-board system equipment, and effectively reduce the communication bandwidth requirements.

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.

When the communication areas overlap, add the code bit corresponding to the overlapping area of the latter control object in 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. Inside the turnout control system, the same code bit information representing the same equipment appearing in different communication areas is merged to ensure the uniqueness of the code bit information management, which can solve the problem of code bit coverage when the turnout control system processes the information of multiple trams Condition.

The following describes the technical solution of the specific implementation in combination with specific application scenarios:

Application Scenario 1

Taking Figure 2 as an example, each communication area will have a separate communication file. After vehicle A enters the PS0102 communication area, it will use the communication file corresponding to the PS0102 communication area to communicate with the turnout control system and send route request information to the turnout control system. ; Car B uses the communication file corresponding to the CS0101 communication area to send information such as the forecast, request, occupancy, and clearing of the intersection to the turnout control system. The turnout control system uses the communication files corresponding to the corresponding communication areas to feed back all equipment status information within the control range of the turnout control system to the on-board system, including code bit information such as PS0101, PS0102 signal status, turnout status, and intersection status.

Application Scenario 2

When the communication areas overlap, take Figure 3 as an example, the warning area of the intersection protected by CS0102 overlaps with the route request area of PS0102, then the warning code bit of CS0102 is added to the communication file of PS0102 during data configuration; similarly, The path request code bit of PS0101 is added to the communication file of CS0101. When the tram is in the overlapping area A, use the communication file of PS1102 to send the route request information of PS1102 and the forecast information of CS0102 to the switch control system at the same time. When the turnout control system performs equipment status management, both the path request code bit of PS1102 and the forecast code bit of CS0102 are set to 1. When the tram head passes the PS0102 signal machine, the vehicle-mounted system uses the CS0102 communication file for vehicle-to-ground communication.

Application Scenario 3

Taking Figure 4 as an example, the warning signal is installed in front of the actual turnout protection signal. By adjusting the communication area range of the PS0104 signal, the tram can apply to the switch control system for the PS0102 protection approach at the position where the communication area overlaps in the figure. And the approach of PS0104 protection can effectively improve the traffic efficiency of trams.

Embodiment two

A computer device, including a memory, a processor, and a computer program stored in the memory and operable on the processor, when the processor executes the computer program, the computer program described in Embodiment 1 is implemented. Vehicle-to-ground communication method based on communication area.

The computer equipment in the embodiments of the present invention may include, but 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.

The computer equipment may include processing means (such as a central processing unit) which may perform various appropriate actions and functions in accordance with programs stored in read-only memory (ROM) or loaded from storage means into random-access memory (RAM). deal with. In RAM, various programs and data necessary for the operation of the computer device are also stored. The processing means, ROM, and RAM are connected to each other via a bus. Input/output (I/O) interfaces are also connected to the bus.

A computer program carried on a computer readable medium contains program code for executing an algorithm. In such an embodiment, the computer program may be downloaded and installed from a network via communication means, or installed from a storage means, or installed from a ROM. When the computer program is executed by the processing device, the above-mentioned functions defined in the methods of the embodiments of the present disclosure are executed.

It should be noted that the above-mentioned 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 above two.

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

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and those skilled in the art should understand that the present invention includes but is not limited to the accompanying drawings and the description in the above specific embodiments content. Any modifications that do not depart from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims (10)

1. A method of tramcar-ground communication based on communication areas, characterized in that the equipment on the tramcar operation line is divided into different control objects, and a communication area is divided for each control object: after the tramcar enters the communication areas, the vehicle-mounted system sends a control command of a control object to the turnout control system, and each communication area is correspondingly provided with a communication file.

2. The tramcar-ground communication method based on the communication areas according to claim 1, wherein the communication areas are independent from each other; alternatively, overlapping portions are provided between the communication areas.

3. The tramcar-ground communication method based on the communication area according to claim 2, wherein when the communication areas overlap, the code bit 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 combines the same code bit information representing the same equipment which appears in different communication areas.

4. The tramcar-ground communication method based on the communication area according to claim 1, wherein the communication area without the control object is set as a default communication area.

5. The method for communication in a tramcar based on communication area according to claim 4, wherein the in-vehicle system acquires the status information of the device through the default communication area.

6. The method for communication between tram and land based on communication area according to claim 4, wherein said communication file contains control information of on-board system to equipment and status information of trackside equipment.

7. The method for communication between tram vehicles and ground based on communication area according to claim 1, wherein the control object comprises a switch protection signal and an intersection signal.

8. The method for communication area-based tramcar ground communication according to claim 1, wherein the control command includes an approach request and an intersection position state.

9. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements a communication zone based tram ground communication method according to any one of claims 1 to 8 when executing the program.

10. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements a method for communication of a tramcar ground based on a communication area according to any one of claims 1 to 8.

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