A train positioning display system, method, device and medium for train-to-train communication

Abstract

The present invention relates to a train-to-train communication train positioning display system, method, device, and medium. The system includes a train gateway interface module, a train master control server module, and a train information display module, which are connected in sequence. The train gateway interface module establishes communication with the primary train positioning system, the backup train positioning system, the trackside train positioning system, and the backup train positioning system, and receives train status information from these train positioning systems and transmits it to the train master control server module. The train master control server module receives train information from the train gateway interface module and performs logical processing on the train positioning information. The train information display module receives the information processed by the train master control server module and displays the train's operating status information on the line on a human-machine interface. Compared with the existing technology, the present invention has the advantages of using information from multiple train positioning systems to display train positioning, and train positioning loss is avoided.

Description

Technical Field

[0001] The present invention relates to a rail transit signal system, and in particular to a train positioning display system, method, equipment and medium for train communication. Background Art

[0002] Currently, with the upgrade of rail transit signaling systems, train control systems based on vehicle-to-vehicle communication are gaining widespread adoption due to their advantages, such as enabling autonomous train resource management and active separation protection while reducing equipment deployment, thereby improving train operating efficiency. Traditional signaling systems calculate train position and movement authorization based on trackside axle occupancy information and precise train positioning information calculated by onboard controllers. If a train degrades and loses communication, backup tracking is performed based on axle occupancy information. However, in vehicle-to-vehicle communication systems, due to the lack of axle counting equipment, the train's position on the line cannot be determined when a train degrades and loses communication, making backup tracking impossible.

[0003] After searching, Chinese patent publication number CN117719564A discloses a backup positioning method for a TACS system, which specifically discloses S1, the backup positioning device is powered on and the configuration information is initialized; S2, the train backup positioning device periodically sends an inquiry message to the trackside train controller, asking the trackside train controller whether it needs to send backup positioning information to it; after receiving the reply message from the trackside train controller, it stops sending the inquiry message and enters step S3, and when the sending timeout occurs, it stops sending the inquiry message and enters step S5, etc. However, this existing patent cannot quickly locate the position of the train on the line. Therefore, how to quickly locate the position of the train on the line in a vehicle-to-vehicle communication system, especially how to display the train positioning information in the human-machine interface after the train is downgraded to a non-communication train, has become an urgent problem to be solved. Summary of the Invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a train positioning display system, method, equipment and medium for train communication.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] According to a first aspect of the present invention, a train-to-train communication train positioning and display system is provided. The system is connected to a primary train positioning system, a backup train positioning system, a trackside train positioning system, and a backup train positioning system, and includes a train gateway interface module, a train master control server module, and a train information display module connected in sequence;

[0007] The train gateway interface module establishes communication with the main train positioning system, the standby train positioning system, the trackside train positioning system, and the backup train positioning system respectively, and receives train status information from these train positioning systems and sends it to the train main control server module;

[0008] The train master control server module receives train information from the train gateway interface module, performs logical processing on the train positioning information, calculates the train precise positioning, imprecise positioning, occupied equipment, movement authorization and manual protection path information, and sends the information to the train information display module;

[0009] The train information display module receives the information processed by the train main control server module and displays the running status information of the train on the line in the human-machine interface.

[0010] As an optimal technical solution, the train gateway interface module defines an information list for each train, including train ID, main train positioning system number, standby train positioning system number, trackside train positioning system number, and backup train positioning system number.

[0011] As a preferred technical solution, the train gateway interface module establishes the priority of each train positioning system and sends the train information received from the train positioning system with the highest priority to the train master control server module.

[0012] As a preferred technical solution, the order of priority from highest to lowest is main train positioning system, backup train positioning system, trackside train positioning system, and backup train positioning system.

[0013] As a preferred technical solution, when all train positioning systems have no positioning information, the train gateway interface module sets the train to an unknown control type.

[0014] As a preferred technical solution, the train master control server module establishes a line equipment list, in which the equipment is divided into three types: tracks, switches and beacons. A connection relationship is established between the tracks and switch equipment, and the beacons are discrete independent devices.

[0015] As a preferred technical solution, if the highest priority received by the train master control server module is the primary train positioning system and the backup train positioning system, the train precise positioning information is calculated, including the occupied equipment information and the mobile authorization distance equipment information from the front to the rear of the train, the equipment includes tracks and switches, and the train master control type is marked as the primary train positioning system or the backup train positioning system;

[0016] If the highest priority received by the train master control server module is the trackside train positioning system, the train imprecise positioning information is calculated, including the occupied equipment information and the artificial protection path equipment information from the front to the rear of the train, the equipment including the track and the switch, and the train master control type is marked as the trackside train positioning system; and the imprecise positioning equipment of the train is verified with the range of the artificial protection path. If all the imprecise positioning equipment are within the range of the artificial protection path, the train imprecise positioning is verified to be valid, otherwise the train imprecise positioning is marked as invalid;

[0017] If the highest priority received is the backup train positioning system, the beacon position of the train is calculated and the train master control type is marked as the backup train positioning system.

[0018] As a preferred technical solution, if the train priority received by the train master control server module is unknown, the previous train positioning information is retained and the train master control type is marked as unknown.

[0019] As a preferred technical solution, the train information display module draws all switches, tracks and beacons in the line according to the connection relationship of the line equipment.

[0020] As a preferred technical solution, the train information display module specifically displays as follows:

[0021] When the train master control type is the main train positioning system and the backup train positioning system, the driving train is displayed at the front position, showing the precise positioning information of the train from the front to the rear, and the train movement authorization information;

[0022] When the train master control type is the trackside train positioning system, the driving train is displayed at the rear position, showing the train's non-precise positioning information from the front to the rear, and the train's manual protection path information;

[0023] When the train master control type is the backup train positioning system, the train position is displayed at the beacon position;

[0024] When the train master control type is unknown, the driving train is displayed as an unknown type, the original occupied equipment flashes according to the current color, and the status of the mobile authorization equipment and the manual protection path equipment is cleared.

[0025] According to a second aspect of the present invention, there is provided a method for the vehicle-to-vehicle communication train positioning display system, the method comprising:

[0026] The train gateway interface module establishes communication with the main train positioning system, the standby train positioning system, the trackside train positioning system, and the backup train positioning system respectively, and receives train status information from these train positioning systems and sends it to the train main control server module;

[0027] The train master control server module receives train information from the train gateway interface module, performs logical processing on the train positioning information, calculates the train precise positioning, imprecise positioning, occupied equipment, movement authorization and manual protection path information, and sends the information to the train information display module;

[0028] The train information display module receives the information processed by the train main control server module and displays the running status information of the train on the line in the human-machine interface.

[0029] According to a third aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0030] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1) The present invention displays the train positioning status based on information from multiple train positioning systems. When a positioning system fails, it can automatically switch to another positioning system for tracking and display, thereby enhancing the reliability of the system;

[0033] 2) The present invention designs a train backup positioning display method in the event of a train positioning system failure, solving the problem of being unable to locate the faulty train;

[0034] 3) The present invention uses different display modes for different positioning, thereby making the display more accurate and providing better prompts to staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A schematic diagram of a train positioning display system for train-to-train communication according to the present invention;

[0036] Figure 2 A schematic diagram of a train master control mode is provided for the present invention;

[0037] Figure 3 Schematic diagram of the track model of the present invention;

[0038] Figure 4 Schematic diagram of the turnout model of the present invention;

[0039] Figure 5 This is a schematic diagram of the beacon model of the present invention;

[0040] Figure 6 Schematic diagram of the circuit equipment of the present invention. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0042] like Figure 1 As shown, a train-to-train communication train positioning display system includes the following modules: a train gateway interface module 1, a train master control server module 2 and a train information display module 3;

[0043] The train gateway interface module 1 establishes communication with the main train positioning system, the standby train positioning system, the trackside train positioning system, and the backup train positioning system according to the system data, and receives train status information from these train positioning systems and sends it to the train master control server module 2;

[0044] The train master control server module 2 receives train information from the train gateway interface module 1, performs logical processing on the train controller information, calculates the train precise positioning, imprecise positioning, occupied equipment, movement authorization, and manual protection path information, and sends the information to the train information display module;

[0045] The train information display module 3 receives the train positioning information and displays the train's running status information on the line in the human-machine interface;

[0046] The train gateway interface module includes the following steps:

[0047] Step 100: define the train identifier as Train, define the primary train positioning system as NCC, define the backup train positioning system as BCC, define the trackside train positioning system as WTC, and define the backup train positioning system as BLS;

[0048] Step 101: Establish a link between each train and the train positioning system<Train,NCC,BCC,WTC,BLS> ;

[0049] Step 102: Establish the priority order of each train positioning system as NCC-BCC-WTC-BLS, where NCC is the highest priority and BLS is the lowest priority.

[0050] Step 103: Establish network communication connections with NCC, BCC, WTC, and BLS based on the link relationships, and receive train information messages from the train positioning system;

[0051] Step 104, as Figure 2As shown, if the train positioning information is received from the NCC, the positioning information includes the precise positioning of the train and the authorized distance of the train movement, and the train master control type is set to the NCC control type;

[0052] Step 105: If there is no information from the NCC, the train positioning information is received from the BCC. The positioning information includes the precise positioning of the train and the authorized distance of the train movement. The train master control type is set to the BCC control type.

[0053] Step 106: If there is no information from the BCC, the train positioning information is received from the WTC. The positioning information includes the train's imprecise positioning and the train's manual protection path, and the train's main control type is set to the WTC control type.

[0054] Step 107: If there is no information from the WTC, the train positioning information is received from the BLS, the positioning information includes the train head position, and the train master control type is set to the BLS control type;

[0055] Step 108: If there is no information in the BLS, the train master control type is set to unknown control type;

[0056] Step 109: Send the train master control type and train location information to the train master control server module;

[0057] The train master control server module receives the train positioning information from the gateway interface module and performs logical processing on the train controller information, including the following steps:

[0058] Step 200: Create a line equipment list. The equipment is divided into three types: tracks, switches, and beacons. Tracks and switches are connected, and beacons are discrete independent devices.

[0059] Step 201, as Figure 3 As shown, a track device attribute list is established, including {track ID, start point coordinates, end point coordinates, left connection device ID, right connection device ID};

[0060] Step 202, as Figure 4 As shown, a turnout device attribute list is established, including {turnout ID, positioning coordinates, reverse coordinates, turnout front coordinates, positioning connection device ID, reverse connection device ID, turnout front connection device ID};

[0061] Step 203, as Figure 5 As shown, establish a beacon device attribute list, including {beacon ID, coordinates};

[0062] Step 204: Receive train location information and mark the train master control type;

[0063] Step 205: When the highest priority received is NCC, BCC, or WTC, search the track device list and the switch device list based on the train head coordinates. If the train head coordinates are between the starting coordinates and the ending coordinates of the track, or between the positioning coordinates and the switch front coordinates, or between the reverse coordinates and the switch front coordinates, then mark the device where the train head coordinates are located as HeadDev_ID.

[0064] Step 206: Search the track device list and the switch device list based on the train tail coordinates. If the train tail coordinates are between the track start coordinates and the end coordinates, or between the turnout position coordinates and the turnout front coordinates, or between the turnout reverse position coordinates and the turnout front coordinates, then mark the device where the train tail coordinates are located as TailDev_ID.

[0065] Step 207: Start searching from the left and right connected devices of the head device HeadDev_ID. If a turnout is found, continue searching forward according to the current position of the turnout until the tail device TailDev_ID is found. The devices passed through in between are marked as the set {MiddleDev_ID}.

[0066] Step 208, set HeadDev_ID, {MiddleDev_ID} and TailDev_ID as the train positioning information occupation device set;

[0067] Step 209: When the train is controlled by NCC or BCC, it searches forward from the locomotive coordinates based on the authorized movement distance. When a switch is encountered, it searches forward along the switch. The search stops when the search length equals the authorized movement distance. The devices found are recorded as the train authorized movement device set {EOA_Device_ID}.

[0068] Step 210: When a train is controlled by a WTC, the device information of the manual protection path is calculated. The device information is searched from the starting point of the manual protection path and along the positions of the switches in the protection path to the end point of the protection path, which is marked as {Pathway_Device_ID}. The train's imprecise positioning devices are then checked against the range of the manual protection path. If all imprecise positioning devices are within the range of the manual protection path, the train's imprecise positioning is verified to be valid. Otherwise, the train's imprecise positioning is marked as invalid.

[0069] Step 211: When the highest priority received is the BLS, the train is searched in the beacon device list according to the coordinates in the backup positioning system. If the train coordinates are equal to the beacon coordinates, the train HeadDev_ID is set as the beacon ID, without other information.

[0070] Step 212: When all train positioning systems are unable to receive train positioning information, the train is set to an unknown control type, the last calculated train positioning occupied device set is retained, and the mobile authorization device and manual protection path device information are deleted;

[0071] Step 213: Send the train precise positioning or non-precise positioning occupied device set, the mobile authorization device set, and the manual protection path device set to the train information display module.

[0072] The train information display module receives the train positioning and occupation equipment set information and displays it in the interface, including the following steps:

[0073] Step 300, such as Figure 6 As shown, all the switches and tracks of the line are drawn from left to right according to the connection relationship of the line equipment;

[0074] Step 301, plotting all discrete beacon points according to the coordinates of the beacons on the route;

[0075] Step 302: When the received train master control type is NCC or BCC, the train position is drawn at the head of the train, and the precise positioning device list HeadDev_ID, {MiddleDev_ID}, and TailDev_ID are set to the red occupied state. If the occupied device is a switch, the current position of the switch is set to red, and the position of the other direction is set to cleared. The train movement authorization device is drawn in white.

[0076] Step 303: When the received train master control type is WTC, the train position is drawn at the tail TailDev_ID, and the non-precise positioning device list HeadDev_ID, {MiddleDev_ID}, and TailDev_ID are set to brown occupied status. If the occupied device is a switch, the current position of the switch is set to brown, and the position in the other direction is set to cleared. The train manual protection path device status is drawn on both sides of the track and switch equipment.

[0077] Step 304: When the received train master control type is BLS, the train position is drawn at the corresponding beacon position, and the beacon is set to pink;

[0078] Step 305: If the train master control type is unknown, keep the previous train position unchanged, and set the corresponding positioning device list HeadDev_ID, {MiddleDev_ID} and TailDev_ID to flash in the current color to indicate unknown status, and clear the status of the mobile authorization device and manual protection path device;

[0079] Step 306: If more than two trains are occupying the same device, it will be displayed in yellow, for example, the rear of train 1 and the front of train 2 are both occupying track 2.

[0080] The above is an introduction to embodiments of the system and method. The following further illustrates the solution of the present invention through embodiments of electronic devices and storage media.

[0081] An embodiment of the present invention further provides an electronic device including 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 computer program instructions 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.

[0082] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0083] The processing unit performs the various methods and processes described above, such as the inventive method. For example, in some embodiments, the inventive method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the inventive method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the inventive method by any other appropriate means (e.g., by means of firmware).

[0084] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0085] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0086] In the context of the present invention, machine-readable medium can be a tangible medium that can contain or store a program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0087] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A train positioning and display system for vehicle-to-vehicle communication, which is connected to a main train positioning system, a standby train positioning system, a trackside train positioning system, and a backup train positioning system, and is characterized in that: The system includes a train gateway interface module, a train master control server module and a train information display module connected in sequence; The train gateway interface module establishes communication with the main train positioning system, the standby train positioning system, the trackside train positioning system, and the backup train positioning system respectively, and receives train status information from these train positioning systems and sends it to the train main control server module; The train master control server module receives train information from the train gateway interface module, performs logical processing on the train positioning information, calculates the train precise positioning, imprecise positioning, occupied equipment, movement authorization and manual protection path information, and sends the information to the train information display module; The train information display module receives the information processed by the train master control server module and displays the running status information of the train on the line in the human-machine interface; The train gateway interface module establishes the priority of each train positioning system and sends the train information received from the train positioning system with the highest priority to the train master control server module; The order of priority is from highest to lowest: main train positioning system, standby train positioning system, trackside train positioning system, and backup train positioning system.

2. The train positioning display system for vehicle-to-vehicle communication according to claim 1, characterized in that: The train gateway interface module defines a list of information for each train, including train ID, main train positioning system number, standby train positioning system number, trackside train positioning system number, and backup train positioning system number.

3. The train positioning display system for vehicle-to-vehicle communication according to claim 1, characterized in that: When all train positioning systems have no positioning information, the train gateway interface module sets the train to an unknown control type.

4. The train positioning display system for train-to-train communication according to claim 1, characterized in that: The train master control server module establishes a line equipment list, in which the equipment is divided into three types: track, switch and beacon. A connection relationship is established between the track and switch equipment, and the beacon is a discrete independent device.

5. The train positioning display system for train-to-train communication according to claim 1, characterized in that: If the highest priority received by the train master control server module is the primary train positioning system and the backup train positioning system, the train master control server module calculates the train precise positioning information, including the occupied equipment information and the mobile authorization distance equipment information from the front to the rear of the train, the equipment includes the track and the switch, and marks the train master control type as the primary train positioning system or the backup train positioning system; If the highest priority received by the train master control server module is the trackside train positioning system, the train imprecise positioning information is calculated, including the occupied equipment information and the artificial protection path equipment information from the front to the rear of the train, the equipment including the track and the switch, and the train master control type is marked as the trackside train positioning system; and the imprecise positioning equipment of the train is verified with the range of the artificial protection path. If all the imprecise positioning equipment are within the range of the artificial protection path, the train imprecise positioning is verified to be valid, otherwise the train imprecise positioning is marked as invalid; If the highest priority received is the backup train positioning system, the beacon position of the train is calculated and the train master control type is marked as the backup train positioning system.

6. The train positioning display system for train-to-train communication according to claim 1, characterized in that: If the train priority received by the train master control server module is unknown, the previous train positioning information is retained and the train master control type is marked as unknown.

7. The train positioning display system for vehicle-to-vehicle communication according to claim 1, characterized in that: The train information display module draws all switches, tracks and beacons on the line according to the connection relationship of the line equipment.

8. The train positioning display system for train-to-train communication according to claim 1, characterized in that: The train information display module specifically displays as follows: When the train master control type is the main train positioning system and the backup train positioning system, the driving train is displayed at the front position, showing the precise positioning information of the train from the front to the rear, and the train movement authorization information; When the train master control type is the trackside train positioning system, the driving train is displayed at the rear position, showing the train's non-precise positioning information from the front to the rear, and the train's manual protection path information; When the train master control type is the backup train positioning system, the train position is displayed at the beacon position; When the train master control type is unknown, the driving train is displayed as an unknown type, the original occupied equipment flashes according to the current color, and the status of the mobile authorization equipment and the manual protection path equipment is cleared.

9. A method for the vehicle-to-vehicle communication train positioning display system according to any one of claims 1 to 8, characterized in that: The method includes: The train gateway interface module establishes communication with the main train positioning system, the standby train positioning system, the trackside train positioning system, and the backup train positioning system respectively, and receives train status information from these train positioning systems and sends it to the train main control server module; The train master control server module receives train information from the train gateway interface module, performs logical processing on the train positioning information, calculates the train precise positioning, imprecise positioning, occupied equipment, movement authorization and manual protection path information, and sends the information to the train information display module; The train information display module receives the information processed by the train main control server module and displays the running status information of the train on the line in the human-machine interface.

10. 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 claim 9 is implemented.

11. 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 claim 9 is implemented.

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