WRC area independent control system and method for TACS system

Abstract

The application relates to a WRC area independent control system and method for a TACS system, which comprises a local area WRC2, a neighboring area WRC1, a neighboring area WRC3, an object controller OC and a region control mode switch CPB; the object controller OC is in communication connection with the local area WRC2, the neighboring area WRC1 and the neighboring area WRC3 respectively, and the region control mode switch CPB is in communication connection with the object controller OC. Compared with the prior art, the application has the advantages of low cost, wide application range, high expansibility and the like.

Description

Technical Field

[0001] This invention relates to rail transit signaling systems, and more particularly to a WRC area independent control system and method for a TACS system. Background Technology

[0002] Currently, the TACS (Train Autonomous Control System) is a new generation of urban rail transit signaling system products. Compared with the traditional CBTC signaling system, it has advantages such as improved operational efficiency, reduced equipment quantity, and lower costs. The Trackside Resource Manager (WRC), as a subsystem of TACS, mainly implements resource allocation and arbitration functions, playing a crucial role in the system. The interface principle related to trackside resources is as follows: the Trackside Resource Manager (WRC) sends track equipment drive commands to the Object Controller (OC), and the Object Controller (OC) feeds back the trackside equipment status to the Trackside Resource Manager (WRC). The CPB (Containment Push Button) area control mode switch, as one of the trackside devices, is usually installed on the IPB panel in the station duty room and operated by the station duty officer. It is used to switch between the centralized control mode and the local control mode of the turnout system. For example, Chinese Patent Publication No. CN113335340A records a corresponding solution.

[0003] To ensure that train operation within a WRC area is not affected when communication with an adjacent WRC is interrupted, the WRC needs to obtain the status of the area control mode switch (CPB) of the adjacent WRC area to avoid impacting train operation within its own WRC area. Typically, the area control mode switch (CPB) is selected by a station operator using a knob, and its status is collected by the OC (Operation Center) and fed back to the WRC. In existing solutions, the acquisition of the area control mode switch (CPB) status is implemented via circuitry, requiring the laying of long cables to connect to the OC cabinet of the adjacent station, as follows: Figure 1 As shown, solid arrows represent cable connections, and dashed arrows represent network connections.

[0004] In existing design schemes, if applied to lines with long routes, numerous WRC areas, and long distances between equipment rooms between stations, a large amount of cabling and cabling construction are required. Furthermore, due to the characteristics of civil engineering design, some stations are not suitable for laying a large number of cables, which would prevent this scheme from being applied to the project. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a WRC area independent control system and method for TACS systems that is cost-effective, widely applicable, and highly scalable.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] According to a first aspect of the present invention, a WRC area independent control system for a TACS system is provided, the control system comprising a local area WRC2, a neighboring area WRC1, a neighboring area WRC3, an object controller OC, and an area control mode switch CPB; the object controller OC is communicatively connected to the local area WRC2, the neighboring area WRC1, and the neighboring area WRC3 respectively, and the area control mode switch CPB is communicatively connected to the object controller OC.

[0008] As a preferred technical solution, the area control mode switch CPB is connected to the object controller OC via a cable, and the object controller OC is connected to the local area WRC2, the adjacent area WRC1, and the adjacent area WRC3 respectively via network communication.

[0009] As a preferred technical solution, the object controller OC collects the status of the area control mode switch CPB and sends its status information to the local area WRC2, the neighboring area WRC1, and the neighboring area WRC3 respectively.

[0010] As a preferred technical solution, the control system modifies the network configuration and data configuration to enable the object controller OC to communicate effectively with the local area WRC2, the adjacent area WRC1, and the adjacent area WRC3.

[0011] As a preferred technical solution, the modifications to the network configuration and data configuration specifically include:

[0012] Step S1: Configure the property of whether the object controller OC communicates with multiple WRCs. If yes, proceed to step S2; otherwise, the object controller OC only communicates with the WRC in this region and proceeds to step S3.

[0013] Step S2: Configure the communication node and define the communication node ID. Determine whether the communication node ID is the primary communication node. If yes, proceed to step S3; otherwise, proceed to step S4.

[0014] Step S3: The WRC, as the main communication node, uses variables sent by all object controllers (OC) for internal logic judgment.

[0015] In step S4, the WRC, as a non-master communication node, uses only the CPB status received from the neighboring OC for internal logic judgment, and discards the rest of the information.

[0016] According to a second aspect of the present invention, a test method is provided for a WRC area independent control system for a TACS system, the method comprising the following steps:

[0017] Step a, set initial conditions;

[0018] Step b: Assign a task to an automated train that is stopped in the WRC1 area to the boundary, and the automated train cannot cross the switch to reach the boundary.

[0019] Step c: The CPB status corresponding to OC2 is transmitted to WRC1. The train can obtain turnout resources in WRC1 and can cross the turnout. Here, OC2 is the OC corresponding to WRC2.

[0020] Step d: Set a turnaround task within the WRC1 range for the train, allowing the train to cross the turnout to perform the turnaround task.

[0021] As a preferred technical solution, this test method uses simulation OC to simulate the code position status acquired from the trackside, as well as communication simulation with multiple WRC communication nodes.

[0022] As a preferred technical solution, this test method uses linesim to simulate the CPB state, and the ice bucket operates the CPB switch through the interface to be in either centralized system control mode or local control mode.

[0023] As a preferred technical solution, the station type selection in this test method is as follows: there needs to be a set of turnouts in the normally operating WRC1 area, and the turnouts are located at the adjacent boundary of WRC2.

[0024] As a preferred technical solution, this test method verifies that when communication between adjacent WRCs is interrupted, the OC successfully transmits the CPB switch status to the adjacent WRCs via network transmission, enabling independent operation of the local WRCs in the degraded mode.

[0025] According to a third aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the program to implement the method described thereon.

[0026] According to a fourth aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method described thereon.

[0027] Compared with the prior art, the present invention has the following advantages:

[0028] 1) The present invention provides a method for trains to operate independently within a WRC area in the event of communication interruption between adjacent WRCs, so as to achieve the function of not affecting train operation within the WRC area when communication between adjacent WRCs is interrupted.

[0029] 2) This invention OC transmits the CPB area control mode switch status to WRC through a novel network method, and designs a test method to verify the usability and correctness of this solution, and finally applies it reliably and safely to engineering projects;

[0030] 3) This invention does not require a large number of cable connections and laying construction, which reduces costs, saves construction time, and improves project efficiency;

[0031] 4) This invention is universal, not constrained by the civil engineering characteristics between stations, and has a wide range of applications;

[0032] 5) This invention is not constrained by the scale of the line or the number of WRC areas, and has high scalability. Attached Figure Description

[0033] Figure 1 The existing design scheme diagram for the TACS system;

[0034] Figure 2 This is a schematic diagram of the novel design of the TACS system of the present invention;

[0035] Figure 3 This is a flowchart illustrating the configuration of the novel TACS system of the present invention.

[0036] Figure 4 This is a test structure diagram of the novel TACS system of the present invention;

[0037] Figure 5 This is a schematic diagram illustrating the selection of the verification station type for the novel TACS system of the present invention;

[0038] Figure 6 This is a test scenario diagram of the novel TACS system of the present invention. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0040] This invention proposes a method for trains to operate independently within a local WRC (Wide Control Registry) area even when communication with adjacent WRCs is interrupted, ensuring that train operation within the local WRC area is not affected by the interruption of communication with adjacent WRCs. The invention mainly comprises two aspects: the OC (Operating Center) transmits the CPB (Center for Pilot Control) area mode switch status to the WRC via a novel network method, and a testing method is designed to verify the usability and correctness of this solution, ultimately ensuring its reliable and safe application in engineering projects. Compared with existing solutions, this invention features reduced costs, wider applicability, and higher scalability.

[0041] The specific implementation process of this invention is as follows:

[0042] (1) The diagram shows the independent operation scheme of the WRC region under the downgrade mode. Figure 2 As shown, solid arrows represent cable connections, and dashed arrows represent network connections: The OC collects the switch status of the CPB area control mode via cable connection, and then transmits this information not only to WRC2 in its own area, but also to the adjacent WRC1 and WRC3 via the network. The adjacent WRCs then use this information for further internal logic judgments. In the existing solution, the OC only communicates with the WRC in its own area; in the new solution, the OC needs to communicate with multiple WRCs.

[0043] (2) In this new design scheme, the existing network and data configurations cannot support it. Therefore, the network and data configurations need to be modified for compatibility. The data is configured with communication parameters based on the communication node ID to complete the implementation of this scheme. The configuration flowchart for this scheme is as follows: Figure 3 As shown:

[0044] Step S1: Configure the property of whether the object controller OC communicates with multiple WRCs. If yes, proceed to step S2; otherwise, the object controller OC only communicates with the WRC in this region and proceeds to step S3.

[0045] Step S2: Configure the communication node and define the communication node ID. Determine whether the communication node ID is the primary communication node. If yes, proceed to step S3; otherwise, proceed to step S4.

[0046] Step S3: The WRC, as the main communication node, uses variables sent by all object controllers (OC) for internal logic judgment.

[0047] In step S4, the WRC, as a non-master communication node, uses only the CPB status received from the neighboring OC for internal logic judgment, and discards the rest of the information.

[0048] (3) For the testing and verification of this function, since there is no real CPB switch connected to the OC via cable indoors, a simulated OC is used to simulate the code position status acquired from the trackside, as well as the simulation with multiple WRC communication nodes. The test structure design is as follows. Figure 4 As shown: sim OC is used to simulate OC communication nodes and directly reads the OC communication configuration file. linesim is used to simulate CPB status, and the CPB switch can be operated through the interface to enter either the system centralized control mode or the local control mode.

[0049] (4) Based on the simulation test system described in step 4, the selection of the station type for verifying this novel scheme is described below. Figure 5 As shown, a set of switches is required in the WRC1 area during normal operation, and the switches are located at the adjacent boundary of WRC2.

[0050] (5) Based on the test structure diagram in step 4 and the station type selection in step 5, the new solution proposed in this invention is verified using the following test scenario:

[0051] 6-1, Initial conditions: WRC1 is running normally, WRC2 is closed, and the train is placed on platform PLF1 in the WRC1 area. The train is in automatic operation mode, and the station type is selected as the station type in the WRC1 area that has a turnout adjacent to WRC2.

[0052] 6-2, Set the train's mission to SSA at the boundary between WRC1 and WRC2 after passing the turnout. The train mission is successfully set and the train starts running.

[0053] 6-3. Due to the closure of the adjacent WRC1, train T1 was unable to reach the boundary between WRC1 and WRC2 and stopped in front of the turnout in the WRC1 area.

[0054] 6-4. On linesim, set the CPB corresponding to OC2 to local control mode and send it to WRC1;

[0055] 6-5, the train acquires turnout resources, crosses the turnout, and stops at the SSA, the boundary between WRC1 and WRC2;

[0056] 6-6, Set the turnaround task for train T1 to platform PLF2. The train can turn around normally and run to PLF2.

[0057] This testing method verifies that when communication between adjacent WRCs is interrupted, the OC can successfully transmit the CPB switch status to adjacent WRCs through a novel network transmission method, enabling the independent operation of the local WRC in degraded mode. This invention has been laboratory tested and successfully applied to pilot sections of Shanghai Metro Lines 3 and 4.

[0058] The above is an introduction to the method embodiments. The following embodiments using electronic devices and storage media will further illustrate the solution of the present invention.

[0059] This invention also 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 loaded from a storage unit into a random access memory (RAM). The RAM may also store various programs and data required for device operation. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0060] Multiple components in the device are connected to the I / O interface, including: input units such as keyboards and mice; output units such as various types of displays and speakers; storage units such as disks and optical discs; and communication units such as network interface cards (NICs), modems, and wireless transceivers. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0061] The processing unit performs the various methods and processes described above, such as the methods of the present invention. For example, in some embodiments, the methods of the present invention may be implemented as computer software programs tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via 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 methods of the present invention described above may be performed. Alternatively, in other embodiments, the CPU may be configured to execute the methods of the present invention by any other suitable means (e.g., by means of firmware).

[0062] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0063] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0064] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0065] 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 these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A WRC area independent control system for a TACS system, characterized in that, The control system includes local area WRC2, adjacent area WRC1, adjacent area WRC3, object controller OC, and area control mode switch CPB; the object controller OC is communicatively connected to local area WRC2, adjacent area WRC1, and adjacent area WRC3 respectively, and the area control mode switch CPB is communicatively connected to object controller OC. The object controller OC collects the status of the area control mode switch CPB and sends its status information to the local area WRC2, the adjacent area WRC1, and the adjacent area WRC3 respectively. The control system modifies the network configuration and data configuration to enable the object controller OC to communicate effectively with the local area WRC2, the adjacent area WRC1, and the adjacent area WRC3. The modifications to the network configuration and data configuration specifically include: Step S1: Configure the property of whether the object controller OC communicates with multiple WRCs. If yes, proceed to step S2; otherwise, the object controller OC only communicates with the WRC in this region and proceeds to step S3. Step S2: Configure the communication node and define the communication node ID. Determine whether the communication node ID is the primary communication node. If yes, proceed to step S3; otherwise, proceed to step S4. Step S3: The WRC, as the main communication node, uses variables sent by all object controllers (OC) for internal logic judgment. In step S4, the WRC, as a non-master communication node, uses only the CPB status received from the neighboring OC for internal logic judgment, and discards the rest of the information.

2. The WRC area independent control system for a TACS system according to claim 1, characterized in that, The area control mode switch CPB is connected to the object controller OC via a cable. The object controller OC is connected to the local area WRC2, the adjacent area WRC1, and the adjacent area WRC3 via network communication.

3. A test method for a WRC area independent control system for a TACS system as described in claim 1, characterized in that, The method includes the following steps: Step a, set initial conditions; Step b: Assign a task to an automated train that is stopped in the WRC1 area to the boundary, and the automated train cannot cross the switch to reach the boundary. Step c: The CPB status corresponding to OC2 is transmitted to WRC1. The train can obtain turnout resources in WRC1 and can cross the turnout. Here, OC2 is the OC corresponding to WRC2. Step d: Set a turnaround task within the WRC1 range for the train, allowing the train to cross the turnout to perform the turnaround task.

4. The test method according to claim 3, characterized in that, This testing method uses OC simulation to simulate the code position status acquired from the trackside, as well as communication simulation with multiple WRC communication nodes.

5. The test method according to claim 3, characterized in that, This test method uses linesim to simulate the CPB state and operates the CPB switch through the interface to switch between centralized system control mode and local control mode.

6. The test method according to claim 3, characterized in that, The specific station type selection in this test method is as follows: there needs to be a set of turnouts in the normally operating WRC1 area, and the turnouts are located at the adjacent boundary of WRC2.

7. The test method according to claim 3, characterized in that, This test method verifies that when communication between adjacent WRCs is interrupted, the OC successfully transmits the CPB switch status to the adjacent WRCs via the network, enabling the independent operation of the local WRCs in the degraded mode.

8. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 3 to 7.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 3 to 7.

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