A design method, device and medium of a platform emergency shutdown function

Abstract

The application relates to a design method, equipment and medium of a platform emergency shutdown function, which is applied to a CTCS2+ATO system. After an emergency shutdown button pressing signal is collected by an interlocking system CBI, the design method closes a signal machine leading to a corresponding platform track and a signal machine starting from the corresponding platform track. After an emergency shutdown button pressing signal is collected by a ground train control center TCC, the TCC sends a red code to a vehicle-mounted signal system, and the vehicle-mounted signal system triggers emergency braking after receiving the red code. Compared with the prior art, the application has the advantages of considering train running safety and operation efficiency.

Description

Technical Field

[0001] This invention relates to train signal control systems, and in particular to a design method, device and medium for a platform emergency closing function based on the CTCS2+ATO system. Background Technology

[0002] The CTCS2+ATO system is a Chinese train control system that adds automatic train operation (ATO) functionality to the CTCS-2 level.

[0003] The CTCS2+ATO system is widely used in national trunk railways and urban railways, realizing train automatic control functions such as centralized train dispatching, automatic protection, and automatic driving.

[0004] The advantages of the CTCS2+ATO system are: the system is mature and reliable with a high degree of automation; the engineering cost is low, it is suitable for national trunk railways and low-density urban rail transit lines, and has a high cost performance; it can achieve interconnection within the network according to the CTCS standard.

[0005] During operation of the CTCS2+ATO system, if a passenger falls onto or enters the tracks within the platform area, the train entering the tracks within the platform area would pose a significant threat to the passenger's life. The emergency stop button, as an emergency safety device in the platform area, plays a crucial role in reducing safety incidents in the event of an accident.

[0006] The CTCS2+ATO system is not a continuous control system. When the emergency stop button at a platform is pressed, the Train Control Center (TCC) sends a red code to the onboard signaling system via track circuits. Simultaneously, the Chain Interlocking System (CBI) shuts down the corresponding platform's departure signal to protect track safety within the platform area. The coverage area of ​​the red code sent by the TCC via track circuits depends entirely on the coverage area of ​​the track circuits, which in turn depends on the track section. Therefore, the track section range associated with the TCC's red code transmission is crucial, directly impacting the system's safety and availability.

[0007] If the track segment associated with the TCC red code is too short, the train may completely straddle this segment before the rear of the train has completely cleared the platform track area. In this case, the train's front end will not be able to receive the red code sent by the TCC through this track circuit after the platform emergency stop button is pressed, causing the train to fail to trigger emergency braking and endangering the safety of passengers who have fallen or entered the platform track area. If the track segment associated with the TCC red code is too long, the train may still receive the red code sent by the TCC through this track circuit after the train has already completely left the platform track area. This will trigger emergency braking and affect system availability.

[0008] A search of Chinese patent publication CN111688767A reveals a method for overlaying a CTCS system and a CBTC system. Specifically, it discloses a method that, without affecting the original onboard equipment configuration of the CTCS and CBTC systems, simultaneously deploys two different types of equipment—CTCS-2 trackside equipment and CBTC trackside equipment—on the trackside in overlapping areas. This allows different signaling systems to coexist, ensuring safe and reliable mixed operation of CBTC and CTCS trains in overlapping areas and improving the transport capacity of the lines in those areas. However, this existing patent does not address emergency platform closure in the CTCS2+ATO system. Summary of the Invention

[0009] The purpose of this invention is to overcome the shortcomings of the prior art and provide a design method, device and medium for a platform emergency closing function that takes into account both traffic safety and operational efficiency.

[0010] The objective of this invention can be achieved through the following technical solutions:

[0011] According to a first aspect of the present invention, a design method for an emergency closing function of a platform is provided. The method is applied to the CTCS2+ATO system. After the interlocking system CBI collects the signal that the emergency closing button has been pressed, the design method closes the signals leading to the corresponding platform track and the signals departing from the corresponding platform track. At the same time, after the ground train control center TCC collects the signal that the emergency closing button has been pressed, it sends a red code to the onboard signaling system. After receiving the red code, the onboard signaling system triggers emergency braking.

[0012] As a preferred technical solution, the emergency stop button is installed on both the platform and the IBP panel in the train control room.

[0013] As a preferred technical solution, multiple emergency stop buttons are installed on the platform according to the platform length.

[0014] As a preferred technical solution, an emergency shutdown button is provided on the IBP panel in the vehicle control room.

[0015] As a preferred technical solution, the interlocking system CBI collects the emergency shut-off button press signal through the interface cabinet.

[0016] As a preferred technical solution, the ground train control center (TCC) collects the emergency shut-off button press signal through the interface cabinet.

[0017] As a preferred technical solution, the ground train control center (TCC) sends a red code to the onboard signaling system via track circuits.

[0018] As a preferred technical solution, the red code range sent by the ground train control center (TCC) includes the section behind the platform rail and the departure signal.

[0019] As a preferred technical solution, the length of the section behind the exit signal is equal to a set value.

[0020] As a preferred technical solution, the set value is used to ensure that when the platform emergency stop button is pressed before the rear of the train has completely left the platform, the train can trigger emergency braking.

[0021] As a preferred technical solution, the value is related to the length of the track section behind the departure signal, the maximum train length, the system response time, and the maximum train speed.

[0022] As a preferred technical solution, the set value is equal to the sum of the maximum train length L1 and the distance L2 traveled by the train within the system response time t.

[0023] As a preferred technical solution, the system response time t is the time from when the emergency stop button on the platform is pressed to when the on-board signal system triggers emergency braking.

[0024] As a preferred technical solution, the distance L2 is equal to the train's maximum speed V multiplied by the system response time t.

[0025] According to a second 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 third 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) After the CBI system detects that the emergency stop button has been pressed, the CBI system will shut down the signal leading to the corresponding platform track and the signal departing from the corresponding platform track to ensure the safety of passengers who fall onto the corresponding platform track.

[0029] 2) The safety protection of the platform emergency closing function set by the present invention includes the platform track and the track section behind the exit signal, and the range of the section behind the exit signal is equal to the set value, which has the advantages of improving system safety and system availability.

[0030] 3) This invention takes into account the length of the track section behind the signal, the maximum train length, the system response time, and the maximum train speed, ensuring that the rear of the train can respond to the protection command associated with the platform emergency closing button before it completely clears the platform track, and can immediately trigger emergency braking, thus balancing driving safety and operational efficiency. Attached Figure Description

[0031] Figure 1 This is a diagram of the C2+ATO system architecture.

[0032] Figure 2 This invention relates to an emergency shut-off button control circuit;

[0033] Figure 3 This is a schematic diagram of the signal closing range of the present invention. Detailed Implementation

[0034] 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.

[0035] This invention relates to a design method for the platform emergency closure function based on the CTCS2+ATO system. This method is applied to the CTCS2+ATO system, which includes the Automatic Train Protection (ATP) subsystem (onboard), Automatic Train Operation (ATO) subsystem (onboard), Interlocking (CI) subsystem (ground), Automatic Train Monitoring (ATS) subsystem (ground), and Trackside Electronic Unit (LEU) (ground). The system structure is as follows: Figure 1 As shown.

[0036] This invention relates to a design method for an emergency platform closing function based on the CTCS2+ATO system. The method designs an emergency platform closing function with corresponding buttons on both the platform and the IBP panel in the train control room. Generally, depending on the platform length, multiple buttons are installed on the platform, and one button is installed on the IBP panel in the train control room. The emergency closing button control circuit is as follows: Figure 2As shown, four emergency stop buttons (ESBA) are installed on the platform, and one emergency stop button (ESBA) is installed on the IBP panel. The nodes of these five buttons are connected in series. When any one button is pressed, the relay coil is de-energized, and the relay node falls due to gravity. This allows the TCC and CBI systems to detect that the emergency stop button has been pressed by collecting the relay node data, thus triggering the relevant software logic. Simultaneously, two reset buttons (QTA1 and QTA2) are installed on the IBP panel. The nodes of these two reset buttons are connected in parallel. When either button is pressed, the relay coil is re-energized, and the relay node is attracted by electromagnetic force, thus restoring the circuit.

[0037] This invention relates to a design method for an emergency platform closing function based on the CTCS2+ATO system. This method's emergency platform closing function, upon the CBI system detecting that the emergency closing button has been pressed, will cause the CBI system to close the signals leading to and from the corresponding platform track, ensuring the safety of passengers who fall onto the corresponding platform track. The signal closing range is as follows: Figure 3 As shown.

[0038] This invention relates to a design method for the platform emergency closing function based on the CTCS2+ATO system. The platform emergency closing function designed by this method is such that after the TCC system detects that the emergency closing button has been pressed, the TCC system sends a red code to the on-board signaling system through the track circuit. Upon receiving the red code, the on-board signaling system triggers emergency braking.

[0039] This invention relates to a design method for the emergency platform closure function based on the CTCS2+ATO system. The red code range sent by the TCC through the track circuit in this method includes the platform track and the section behind the exit signal, and the length of the section behind the exit signal is equal to a set value.

[0040] The aforementioned setting ensures that the train should trigger emergency braking when the platform emergency stop button is pressed before the rear of the train has completely left the platform.

[0041] The set values ​​are related to the length of the track section behind the departure signal, the maximum train length, the system response time, and the maximum train speed.

[0042] The set value is equal to the sum of the maximum train length L1 and the distance L2 (= maximum train speed V * system response time t) traveled by the train from the time the emergency stop button on the platform is pressed until the onboard signal system triggers emergency braking.

[0043] 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.

[0044] The electronic device of this invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in read-only memory (ROM) or loaded from a storage unit into 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.

[0045] 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.

[0046] 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).

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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 design method for an emergency platform closure function, applied to the CTCS2+ATO system, characterized in that, The design method involves the CBI interlocking system detecting that the emergency stop button has been pressed, and then closing the signals leading to and from the corresponding platform track. Simultaneously, the TCC ground control center detects that the emergency stop button has been pressed and sends a red code to the onboard signaling system. Upon receiving the red code, the onboard signaling system triggers emergency braking. The red code range sent by the ground train control center (TCC) includes the platform rail and the section behind the departure signal; the length of the section behind the departure signal is equal to a set value; the set value is used to ensure that the train can trigger emergency braking when the platform emergency stop button is pressed before the rear of the train has completely left the platform.

2. The design method for an emergency platform closing function according to claim 1, characterized in that, The emergency shut-off button is installed on both the platform and the IBP panel in the control room.

3. The design method for an emergency platform closing function according to claim 2, characterized in that, The emergency close button is installed on the platform in multiple ways, depending on the platform length.

4. The design method for an emergency platform closing function according to claim 2, characterized in that, One emergency shut-off button is located on the IBP panel in the vehicle control room.

5. The design method for an emergency platform closing function according to claim 1, characterized in that, The interlocking system CBI collects the emergency shut-off button press signal through the interface cabinet.

6. The design method for an emergency platform closing function according to claim 1, characterized in that, The ground train control center (TCC) collects the emergency shut-off button press signal through the interface cabinet.

7. The design method for an emergency platform closing function according to claim 1, characterized in that, The ground-based train control center (TCC) sends a red code to the onboard signaling system via track circuitry.

8. The design method for an emergency platform closing function according to claim 1, characterized in that, The value is related to the length of the track section behind the departure signal, the maximum train length, the system response time, and the maximum train speed.

9. The design method for an emergency platform closing function according to claim 1, characterized in that, The set value is equal to the sum of the maximum train length L1 and the distance L2 traveled by the train within the system response time t.

10. The design method for an emergency platform closing function according to claim 9, characterized in that, The system response time t is the time from when the emergency stop button on the platform is pressed to when the onboard signaling system triggers emergency braking.

11. The design method for an emergency platform closing function according to claim 9, characterized in that, The distance L2 is equal to the train's maximum speed V multiplied by the system response time t.

12. 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 1 to 11.

13. 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 1 to 11.

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