A virtual-real linkage system and method based on rail transit signal system

Abstract

The present invention provides a virtual-real linkage system and method based on a rail transit signal system, wherein the virtual-real linkage system includes a physical end, a train end, and a simulation end, wherein the physical end and the simulation end are respectively connected to the train end for communication, and the physical end is also connected to the simulation end for communication. The virtual-real linkage method is specifically as follows: constructing a virtual track line, and obtaining a real track line, and logically connecting the virtual track line and the real track line; determining the initial position of each real train and each virtual train, and planning the running tracks of all trains respectively; handling the route of the corresponding virtual train or real train through the corresponding real trackside equipment and the virtual trackside equipment respectively, monitoring the train status of all trains in real time, and determining the debugging result of the rail transit signal system according to the train status and the route handling result. The present invention can greatly shorten the debugging time of the rail transit communication system and effectively improve the debugging efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit debugging, and in particular to a virtual-real linkage system and method based on a rail transit signal system. Background Art

[0002] In the preparation stage of the rail transit signal system, it is necessary to debug the rail transit lines to be put into the rail transit signal system, so as to ensure its traditional debugging method. It needs to go through a series of complex links such as equipment arrival, equipment installation, equipment debugging, indoor and outdoor consistency inspection, single vehicle debugging, multi-vehicle debugging, and signal system comprehensive joint debugging. This serial construction process takes a long time and involves many subsystems. Once a problem occurs, it is difficult to find the cause in a short time, and the progress of the project construction will be slow. In addition, the debugging of the traditional rail transit signal system generally requires the completion of the internal debugging of the interlocking system and the independent debugging of all trackside equipment, and then the static debugging of the vehicle system, the line segmentation survey and other work, and then obtain the third-party authorized motor vehicle certificate, etc., and finally the linkage interface test between the real trackside equipment and the vehicle system can be carried out. If the debugging is carried out directly after the rail transit signal construction is completed, the debugging time is long and the efficiency is low. However, if the virtual simulation method is directly used to realize the debugging of the rail transit signal system, there are problems such as insufficient authenticity and imperfect functions. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a virtual-reality linkage system and method based on a rail transit signal system, which can realize the simulation of the operation of a train on a track line through the virtual-reality linkage, thereby realizing the operation of a virtual train on a real track line and the operation of a real train on a virtual track line, realizing parallel debugging of the rail transit signal system, and can solve the problems of many debugging links, long debugging time and low efficiency in the existing debugging methods, so that the debugging efficiency of the rail transit signal system can be improved and the authenticity of the debugging is guaranteed.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] A virtual-real linkage method based on a rail transit signal system, comprising:

[0006] Construct a virtual track line according to the track line to be tested, obtain the real track line that has been put into use, and connect the virtual track line and the real track line through logic;

[0007] Determine the initial position of each real train and each virtual train, and plan the running track of each real train and each virtual train according to the test requirements;

[0008] When all real trains and all virtual trains are running according to the planned running tracks, the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and virtual trackside equipment respectively;

[0009] Monitor the train status of all virtual trains and all real trains in real time, and determine the debugging results of the rail transit signal system according to the train status of all virtual trains and all real trains and the corresponding route processing results.

[0010] Furthermore, after all real trains and all virtual trains are running according to the planned running trajectories, the virtual platform also calculates the train position of each real train and each virtual train running on the virtual track line in real time according to the train starting position, train speed and train displacement information, and the real platform calculates the train position of each real train and each virtual train running on the real track line in real time according to the train starting position, train speed and train displacement information. The virtual platform and the real platform respectively determine the real-time occupancy of the virtual track line and the track section in the real track line according to the corresponding calculated train positions.

[0011] Furthermore, after the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and the virtual trackside equipment respectively, the entry of the virtual train or the real train is monitored in real time. After the virtual train or the real train enters the station, the virtual train or the real train establishes communication with the corresponding virtual platform or the real platform and obtains the corresponding platform door status, and opens the corresponding platform door after the virtual train or the real train enters the station.

[0012] A virtual-real linkage system based on a rail transit signal system comprises a physical end, a train end and a simulation end, wherein the physical end and the simulation end are respectively connected to the train end in communication, and the physical end is also connected to the simulation end in communication;

[0013] The physical end includes a real platform, real trackside equipment and real track lines. The physical end sends and receives information according to the real trackside equipment of the real platform, and exchanges data with the train end and the simulation end.

[0014] The simulation end includes a virtual platform, virtual trackside equipment and a virtual track line. The simulation end sends and receives information through the virtual equipment of the virtual platform and interacts with the train end and the physical end.

[0015] The virtual track line is logically connected to the real track line;

[0016] The train end includes a virtual train and a real train. The virtual train and the real train cooperate with the virtual track line and the real track line to simulate the operation of the track line.

[0017] Furthermore, both the real train and the virtual train can run on a real track line or a virtual track line.

[0018] Furthermore, the physical end also includes a real interlocking subsystem, a real ZC subsystem, a station ATS subsystem and a station center.

[0019] Furthermore, the simulation end includes a virtual interlocking subsystem, a virtual ZC subsystem and a virtual OCC device.

[0020] The beneficial effects of the present invention are:

[0021] The advantages of virtual equipment in terms of convenience, safety, and information are brought into play, and virtual-real linkage testing is carried out in combination with actual equipment to create a real and safe testing environment. The virtual-real linkage method can get rid of the limitations of the traditional rail transit signal system debugging on the debugging function, and change from the traditional serial test to parallel debugging. It can provide a virtual train to complete the linkage test of the trackside equipment in advance, and can also perform vehicle internal debugging or on-board system and trackside equipment linkage interface testing on the real on-board system when the trackside equipment is not installed. It can also complete the interface debugging of the vehicle and the on-board signal system, and the interface function test of the on-board system and the trackside equipment without the train going to the main line, which greatly shortens the debugging time and improves the debugging efficiency. And by replacing the line being debugged with a virtual track, it can reduce its impact on the line that has been put into operation, and reduce the failure rate and testing cost of new line access. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of a process of the present invention;

[0024] Figure 3 is a schematic diagram of a scenario in which a virtual train runs on a real track line according to an embodiment of the present invention;

[0025] Figure 4 is a schematic diagram of a scenario in which a real train runs on a virtual track line according to an embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of a scenario in which a virtual train and a real train cross paths and run on a real track line according to an embodiment of the present invention.

[0027] Among them: 1. Physical end, 11. Real platform, 12. Real trackside equipment, 13. Real track line, 2. Simulation end, 21. Virtual platform, 22. Virtual trackside equipment, 23. Virtual track line, 3. Train end, 31. Virtual train, 32. Real train. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Example:

[0030] A virtual-real linkage system based on rail transit signal system, such as Figure 1 As shown, it includes a physical end 1, a train end 3 and a simulation end 2, the physical end and the simulation end are respectively connected to the train end for communication, and the physical end is also connected to the simulation end for communication;

[0031] The physical end includes a real platform 11, real trackside equipment 12 and real track line 13. The physical end sends and receives information according to the real trackside equipment of the real platform, and exchanges data with the train end and the simulation end.

[0032] The simulation end includes a virtual platform 21, virtual trackside equipment 22 and a virtual track line 23. The simulation end sends and receives information through the virtual equipment of the virtual platform and interacts with the train end and the physical end.

[0033] The virtual track line is logically connected to the real track line;

[0034] The train end includes a virtual train 31 and a real train 32. The virtual train and the real train cooperate with the virtual track line and the real track line to simulate the operation of the track line.

[0035] The virtual trackside equipment and the real trackside equipment are connected in communication and can exchange information such as the trackside equipment status and vehicle control instructions.

[0036] The simulation end includes several virtual stations, and the physical end also includes several real stations.

[0037] Both the real train and the virtual train can run on a real track line or a virtual track line.

[0038] The physical end also includes a real interlocking subsystem, a real ZC subsystem, a station ATS subsystem and a station center.

[0039] The simulation end includes a virtual interlocking subsystem, a virtual ZC subsystem and a virtual OCC device.

[0040] In addition, both the physical and simulation ends include corresponding platform doors, IBP panels and other equipment, which can simulate the complete operation process of the train on the track.

[0041] The virtual OCC device includes a virtual ATS subsystem and a virtual station center. The virtual OCC device has the function of sending train control instructions and supervising the train status. Similarly, the virtual OCC device also communicates with the virtual trackside equipment and the real trackside equipment at the same time, can control the virtual trackside equipment and the real trackside equipment at the same time, and can supervise the virtual trackside equipment and the real trackside equipment.

[0042] The ZC subsystem refers to the zone controller subsystem in the rail transit signal system, and the station ATS subsystem refers to the automatic train monitoring system, which can realize real-time monitoring of the train.

[0043] Real trackside equipment includes axle counters, beacons, signal machines, switches, platforms and related signal equipment.

[0044] A virtual-real linkage method based on rail transit signal system, such as Figure 2 As shown, including:

[0045] Construct a virtual track line according to the track line to be tested, obtain the real track line that has been put into use, and connect the virtual track line and the real track line through logic;

[0046] Determine the initial position of each real train and each virtual train, and plan the running track of each real train and each virtual train according to the test requirements;

[0047] When all real trains and all virtual trains are running according to the planned running tracks, the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and virtual trackside equipment respectively;

[0048] Monitor the train status of all virtual trains and all real trains in real time, and determine the debugging results of the rail transit signal system according to the train status of all virtual trains and all real trains and the corresponding route processing results.

[0049] When all real trains and all virtual trains are running according to the planned running trajectories, the virtual platform also calculates the train position of each real train and each virtual train running on the virtual track line in real time according to the train starting position, train speed and train displacement information. The real platform calculates the train position of each real train and each virtual train running on the real track line in real time according to the train starting position, train speed and train displacement information. The virtual platform and the real platform respectively determine the real-time occupancy of the track sections in the virtual track line and the real track line according to the corresponding calculated train positions.

[0050] After the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and the virtual trackside equipment respectively, they also monitor the entry of the virtual train or the real train in real time. After the virtual train or the real train enters the station, the virtual train or the real train establishes communication with the corresponding virtual platform or the real platform and obtains the corresponding platform door status, and opens the corresponding platform door after the virtual train or the real train enters the station.

[0051] The virtual-reality linkage scene specifically includes a scene where a virtual train runs on a real track line, a scene where a real train runs on a virtual track line, and a scene where a virtual train and a real train cross paths on a real track line.

[0052] When the virtual train runs on a real track, its running scene is as follows: Figure 3 shown.

[0053] In this scenario, there are multiple virtual trains running on real tracks, and the virtual trains are given train routes and movement authorizations through real trackside equipment.

[0054] When the virtual train enters or clears the real track section, the occupancy or clearance status of the corresponding track section can be correctly displayed on the HMI interface corresponding to the real trackside equipment.

[0055] When the virtual train stops at the platform area, it can link the real platform door switch;

[0056] The opening and closing status of the virtual train doors can be displayed on the interface of the real ATS subsystem.

[0057] By operating the emergency stop button on the real platform, the virtual train entering the platform area can also be linked to implement emergency stop;

[0058] When the virtual train approaches, enters, or leaves a real platform, it can also work in conjunction with the passenger information equipment PIS and broadcasting equipment PA in the real platform to provide feedback on the status of the virtual train.

[0059] Specifically, after the virtual train enters or clears the track section, the specific process of displaying the occupation or clearance status of the corresponding track section on the HMI interface corresponding to the real trackside equipment is as follows:

[0060] The virtual train tells the real interlocking subsystem and the real ZC subsystem the set initial position. The simulation software of the virtual train combines the on-board dynamics model with the CC software to calculate the current speed, position, displacement and other information of the train in real time under any conditions. The virtual train converts the calculated train position into the real-time occupancy of the track section, and outputs the track section occupancy information to the VIB board in the interlocking cabinet in the real interlocking subsystem. When the real interlocking subsystem receives the track section occupancy information, it considers the section to be occupied, and the real ATS subsystem and HMI interface display the relevant information according to the section occupancy information transmitted by the interlocking cabinet.

[0061] The CC software is a simulation modeling software.

[0062] After the virtual train stops at the platform area, the specific process of linking the real platform door opening and closing is as follows:

[0063] Connect the onboard system of the virtual train to the safety loop network of the rail transit signal system through a network cable, and ensure that it communicates normally with any subsystem in the rail transit signal system. Control the virtual train to run on the real track to the real platform through an external driving console simulation device; after the virtual train enters the station, it establishes communication with the real platform and obtains the status of the platform door. After the virtual train arrives at the station and stops steadily, the CC software sends a door opening command to the real interlocking subsystem; after the real interlocking subsystem receives the door opening command sent by the CC software, it drives the door opening relay of the relevant platform door to be attracted, and after the platform door detects that the door opening relay of the relevant platform door is attracted, it opens the corresponding platform door.

[0064] When a real train runs on a virtual track, its running scene is as follows: Figure 4 shown.

[0065] In this scenario, there are multiple real trains tracking and running on virtual trackside equipment, and the virtual trackside equipment is used to process route entry and movement authorization for the real trains.

[0066] After a real train enters or clears a virtual track section, the interface of the virtual trackside equipment can correctly display the corresponding section occupancy or clearance status.

[0067] When the real train stops at the virtual platform, the train doors can be linked to the virtual platform doors.

[0068] The HMI interface of the virtual OCC device can display the switch status of each platform door in the virtual platform.

[0069] And when a real train approaches, enters or leaves the virtual platform, it can be linked to the broadcasting equipment in the real train.

[0070] Specifically, after a real train enters or clears a virtual track section, the specific process of displaying the corresponding section occupation or clearance status on the HMI interface of the virtual trackside equipment is as follows:

[0071] The real track line is divided into several virtual interlocking centralized stations and ZC jurisdiction areas at the simulation end, and the virtual axle counter is used to divide the real track line into logical sections. According to the scene requirements, virtual platforms and platform-related trackside equipment and other signal elements are added to realize the construction of virtual track lines. The virtual network of the virtual platform is connected to the on-board system network of the real train through a network cable to ensure that the virtual trackside equipment communicates normally with the real train. The real train detects the speed, displacement and position of the train in real time through speed sensors and radar equipment, and converts the position of the train into the location of the virtual axle counter section in real time, forming an offset in the track data, and obtains the two state values ​​of occupation and clearance, which are sent to the virtual interlocking subsystem. The virtual OCC device and HMI interface display the occupation or clearance of the corresponding section according to the occupation or clearance status of the virtual axle counter transmitted by the virtual interlocking subsystem.

[0072] When the virtual train and the real train cross each other on the real track, the running scene is as follows: Figure 5 shown.

[0073] In this scenario, virtual trains and real trains run together and track each other on real track lines at the same time.

[0074] The virtual trackside equipment and the real trackside equipment communicate in real time, handling cross-regional train routes for virtual trains and real trains, and also handling regional handovers, calculating cross-regional movement authorizations and other services for virtual trains and real trains.

[0075] The virtual OCC device communicates with the real trackside equipment, and the two can hand over control authority and send train control information to the virtual train and the real train. The train control information includes train detention, section running time, etc.

[0076] When the virtual train and the real train are running together and tracking on the real track line at the same time, the virtual train and the real train send position information to the real ZC subsystem at the same time. After receiving the position information sent by the train, the real ZC subsystem calculates the movement authorization information for it without distinguishing the attributes of the train, and the virtual train and the real train are tracked in the same way as the real train.

[0077] The specific process of virtual trackside equipment communicating with real trackside equipment and handling cross-region train routes for virtual trains and real trains is as follows:

[0078] The virtual interlocking centralized station is connected to the real interlocking safety ring network. Both sides maintain inter-station communication. The virtual interlocking centralized station generates the route start signal and sends the route start signal to the real interlocking area of ​​the adjacent station. After the real interlocking area receives the route start signal, both sides check the route opening conditions, lock the routes of the two stations, and the real interlocking area displays the adjacent station for checking.

[0079] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A virtual-real linkage method based on a rail transit signal system, characterized in that: include: Construct a virtual track line according to the track line to be tested, obtain the real track line that has been put into use, and connect the virtual track line and the real track line through logic; Determine the initial position of each real train and each virtual train, and plan the running track of each real train and each virtual train according to the test requirements; When all real trains and all virtual trains are running according to the planned running tracks, the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and virtual trackside equipment respectively; Monitor the train status of all virtual trains and all real trains in real time, and determine the debugging results of the rail transit signal system according to the train status of all virtual trains and all real trains and the corresponding route handling results; The virtual-real linkage scenarios include the scenario where a virtual train runs on a real track, the scenario where a real train runs on a virtual track, and the scenario where a virtual train and a real train cross paths on a real track. In the scenario where virtual trains are running on real track lines, there are multiple virtual trains running on real tracks, and the virtual trains are given train route and movement authorization through real trackside equipment; When the virtual train enters or clears the real track section, the real trackside equipment displays the occupation or clearance status of the corresponding track section; When the virtual train stops at the platform area, the real platform door switch is linked.

2. A virtual-real linkage method based on a rail transit signal system according to claim 1, characterized in that: When all real trains and all virtual trains are running according to the planned running trajectories, the virtual platform also calculates the train position of each real train and each virtual train running on the virtual track line in real time according to the train starting position, train speed and train displacement information. The real platform calculates the train position of each real train and each virtual train running on the real track line in real time according to the train starting position, train speed and train displacement information. The virtual platform and the real platform respectively determine the real-time occupancy of the track sections in the virtual track line and the real track line according to the corresponding calculated train positions.

3. The virtual-real linkage method based on rail transit signal system according to claim 1, characterized in that: After the real platform and the virtual platform handle the entry of the corresponding virtual train or real train through the corresponding real trackside equipment and the virtual trackside equipment respectively, they also monitor the entry of the virtual train or the real train in real time. After the virtual train or the real train enters the station, the virtual train or the real train establishes communication with the corresponding virtual platform or the real platform and obtains the corresponding platform door status, and opens the corresponding platform door after the virtual train or the real train enters the station.

4. A virtual-real linkage system based on a rail transit signal system, used to execute a virtual-real linkage method based on a rail transit signal system according to any one of claims 1 to 3, characterized in that: It includes a physical end, a train end and a simulation end, wherein the physical end and the simulation end are respectively connected to the train end for communication, and the physical end is also connected to the simulation end for communication; The physical end includes a real platform, real trackside equipment and real track lines. The physical end sends and receives information according to the real trackside equipment of the real platform, and exchanges data with the train end and the simulation end. The simulation end includes a virtual platform, virtual trackside equipment and a virtual track line. The simulation end sends and receives information through the virtual equipment of the virtual platform and interacts with the train end and the physical end. The virtual track line is logically connected to the real track line; The train end includes a virtual train and a real train. The virtual train and the real train cooperate with the virtual track line and the real track line to simulate the operation of the track line.

5. The virtual-real linkage system based on the rail transit signal system according to claim 4 is characterized in that: Both the real train and the virtual train can run on a real track line or a virtual track line.

6. The virtual-real linkage system based on the rail transit signal system according to claim 4, characterized in that: The physical end also includes a real interlocking subsystem, a real ZC subsystem, a station ATS subsystem and a station center.

7. The virtual-real linkage system based on rail transit signal system according to claim 4, characterized in that: The simulation end also includes a virtual interlocking subsystem, a virtual ZC subsystem and a virtual OCC device.

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