CN116811970A

CN116811970A - Design method, equipment and medium for emergency shutdown function of platform

Info

Publication number: CN116811970A
Application number: CN202310589353.9A
Authority: CN
Inventors: 毕文峰
Original assignee: Casco Signal Ltd
Current assignee: Casco Signal Ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-09-29

Abstract

The invention relates to a design method, equipment and medium of a platform emergency closing function, the method is applied to a CTCS2+ATO system, and the design method closes a signal machine leading to and starting from a corresponding platform rail after an interlocking system CBI collects a signal of an emergency closing button pressed; meanwhile, after the ground train control center TCC collects the signal of the emergency closing button pressed, a red code is sent to the vehicle-mounted signal system, and the vehicle-mounted signal system triggers emergency braking after receiving the red code. Compared with the prior art, the invention has the advantages of taking the driving safety, the operation efficiency and the like into consideration.

Description

Design method, equipment and medium for emergency shutdown function of platform

Technical Field

The invention relates to a train signal control system, in particular to a design method, equipment and medium for a platform emergency shutdown function based on a CTCS2+ATO system.

Background

The CTCS2+ATO system is a Chinese train control system with the function of Automatic Train Operation (ATO) superimposed on the CTCS-2 level.

The CTCS2+ATO system is widely applied to national trunk railways and urban railways, and realizes the functions of train automatic control such as centralized dispatching, automatic protection, automatic driving and the like.

The ctcs2+ato system has the advantages that: the system is mature and reliable, and the degree of automation is high; the construction cost is low, and the method is suitable for national mainline railways and urban rail transit lines operated at low density, and has high cost performance; interconnection and interworking inside the network can be realized according to CTCS standards.

During operation of the ctcs2+ato system, if a passenger falls off or enters a track in the platform area, the train enters the track in the platform area, which can pose a significant threat to the life safety of the passenger. The emergency shutdown button plays a very important role in reducing safety accidents when accidents occur unexpectedly as an emergency protective device for a platform area.

The ctcs2+ato system is not a continuous control system, and when the platform emergency shutdown button is pressed, the ground Train Control Center (TCC) transmits a red code to the vehicle-mounted signal system through the track circuit, and at the same time, the interlocking system (CBI) shuts down the outbound signal machine of the corresponding platform to protect the track safety in the platform area. The coverage of the TCC for transmitting a red code through the track circuit is entirely dependent on the track circuit coverage, which is dependent on the track segment coverage. Therefore, the range of track segments with which the TCC transmits the red code is critical, directly affecting the safety and usability of the system.

If the track section related to the red code position sent by the TCC is too short, the train can be caused to completely cross the track section, and when the train tail does not completely clear the platform track area yet, the train head can not know the red code sent by the TCC through the track circuit after the platform emergency closing button is pressed, so that the train can not trigger emergency braking, and the safety of passengers falling or entering the platform area track is endangered; if the track section associated with the red code bit sent by the TCC is too long, the train head can still know the red code sent by the TCC through the track circuit when the platform emergency closing button is pressed after the train leaves the platform track completely, and the train triggers emergency braking, so that the usability of the system is affected.

Through searching China patent publication No. CN111688767A, a method for superposing a CTCS system and a CBTC system is disclosed, and particularly, under the condition that the configuration of original vehicle-mounted equipment of the CTCS system and the CBTC system is not influenced, two sets of equipment with different systems, namely CTCS-2 trackside equipment and CBTC trackside equipment, are deployed beside a track in an overlapped area, so that signal systems with different systems coexist, the safe and reliable running and mixing of a CBTC train and a CTCS train in the overlapped area are ensured, and the line transportation capacity of the overlapped area is improved. But this prior patent is not concerned with emergency shutdown of stations in ctcs2+ato systems.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a design method, equipment and medium for a platform emergency shutdown function which takes traffic safety and operation efficiency into consideration.

The aim of the invention can be achieved by the following technical scheme:

according to a first aspect of the present invention, there is provided a design method of an emergency shutdown function of a platform, which is applied to a ctcs2+ato system, the design method shutting down a traffic signal to and from a corresponding platform rail after an emergency shutdown button is pressed by an interlock system CBI; meanwhile, after the ground train control center TCC collects the signal of the emergency closing button pressed, a red code is sent to the vehicle-mounted signal system, and the vehicle-mounted signal system triggers emergency braking after receiving the red code.

As an optimal technical scheme, the emergency shutdown buttons are arranged on the platform and the vehicle control room IBP disk.

As a preferable technical scheme, the emergency shutdown button is arranged on the platform in a plurality according to the length of the platform.

As a preferable technical scheme, the emergency shutdown button is arranged on the vehicle control room IBP disk.

As a preferable technical solution, the interlocking system CBI collects the signal that the emergency shutdown button is pressed through the interface cabinet.

As a preferable technical scheme, the ground train control center TCC collects signals of the emergency shutdown button pressed through the interface cabinet.

As an optimal technical scheme, the ground train control center TCC sends red codes to the vehicle-mounted signal system through the track circuit.

As a preferred technical scheme, the red code range sent by the ground train control center TCC comprises a platform rail and a rear section of an outbound signal machine.

As a preferable technical scheme, the length of the rear section of the outbound annunciator is equal to a set value.

As a preferable technical scheme, the set value is used for ensuring that the train can trigger emergency braking when the platform emergency closing button is pressed before the train tail does not completely leave the platform.

As a preferred solution, the magnitude of the set point is related to the length of the track section behind the outbound annunciator, the maximum train length, the system response time, and the maximum train speed.

As a preferable technical scheme, the set value is equal to the sum of the maximum train length L1 and the distance L2 travelled by the train within the system response time t.

As a preferable technical solution, the system response time t is a time from the pressing of the platform emergency shutdown button to the triggering of emergency braking by the on-board signal system.

As a preferred solution, the distance L2 is equal to the train maximum speed V times the system response time t.

According to a second aspect of the present invention there is provided an electronic device comprising a memory and a processor, the memory having stored thereon a computer program, the processor implementing the method when executing the program.

According to a third aspect of the present invention, there is provided a computer readable storage medium having stored thereon a computer program which when executed by a processor implements the method.

Compared with the prior art, the invention has the following advantages:

1) After the CBI system collects that the emergency closing button is pressed, the CBI system closes the signal machine leading to the corresponding platform rail and starting from the corresponding platform rail so as to ensure the safety of passengers falling to the corresponding platform rail;

2) The safety protection of the emergency closing function of the platform comprises a platform rail and a track section behind an outbound signal machine, wherein the range of the section behind the outbound signal machine is equal to a set value, and the safety protection has the advantages of improving the safety of the system, improving the usability of the system and the like;

3) The invention considers the length of the track section behind the signal machine, the maximum train length, the system response time and the maximum speed of the train, ensures that the tail of the train can respond to the protection instruction associated with the activation of the emergency closing button of the platform before the tail of the train completely clears the platform rail, can immediately trigger emergency braking, and takes the driving safety and the operation efficiency into consideration.

Drawings

FIG. 1 is a block diagram of a C2+ATO system;

FIG. 2 is an emergency shutdown button control circuit of the present invention;

FIG. 3 is a schematic diagram of the turn-off range of the traffic signal according to the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

The invention discloses a design method of a platform emergency shutdown function based on a CTCS2+ATO system, which is applied to the CTCS2+ATO system, wherein the system comprises a train automatic protection subsystem ATP (vehicle-mounted), a train automatic driving subsystem ATO (vehicle-mounted), an interlocking subsystem CI (ground), a train automatic monitoring subsystem ATS (ground) and a trackside electronic unit LEU (ground), and the system structure is shown in figure 1.

The invention relates to a design method of a platform emergency closing function based on a CTCS2+ATO system, wherein the platform emergency closing function designed by the method is provided with matched buttons on a platform and a vehicle control room IBP disk, generally, a plurality of buttons are arranged on the platform according to the length of the platform, and 1 button is arranged on the vehicle control room IBP disk. Emergency shutdown button control circuit as shown in fig. 2, 4 Emergency Shutdown Buttons (ESBAs) are provided at the station, and 1 Emergency Shutdown Button (ESBA) is provided on the IBP disk. The nodes of the 5 buttons are connected in series, when any one of the buttons is pressed, the relay coil is powered down, the relay node falls under the gravity, so that the TCC system and the CBI system can acquire the pressed information of the emergency closing button through the node of the relay, and related software logic is started. Meanwhile, 2 reset buttons (QTA 1 and QTA 2) are arranged on the IBP disc, nodes of the two reset buttons are connected in parallel, when any one button is pressed down, the relay coil is electrified again, and the relay node is sucked up by electromagnetic force, so that the purpose of resetting a circuit is achieved.

The invention relates to a design method of a platform emergency closing function based on a CTCS2+ATO system, which is characterized in that after a CBI system collects an emergency closing button to be pressed, the CBI system closes a signal machine leading to a corresponding platform rail and starting from the corresponding platform rail so as to ensure the safety of passengers falling to the corresponding platform rail. The signaling organ off range is shown in fig. 3.

The invention relates to a design method of a platform emergency closing function based on a CTCS2+ATO system.

The invention relates to a design method of a platform emergency shutdown function based on a CTCS2+ATO system, which is characterized in that a red code range transmitted by a TCC through a track circuit comprises a platform rail and a rear section of an outbound signal machine, and the length of the rear section of the outbound signal machine is equal to a set value.

The set value ensures that the train should trigger emergency braking when the platform emergency closing button is pressed before the train tail does not completely leave the platform.

The set point is related to the length of the track section behind the outbound annunciator, the maximum train length, the system response time, and the maximum train speed.

The set value is equal to the sum of the maximum train length L1 and the distance L2 of the train running in the system response time from the pressing of the platform emergency shutdown button to the triggering of the emergency braking of the vehicle-mounted signal system (=the maximum speed V of the train is equal to the system response time t).

The foregoing description of the embodiments of the method further describes the embodiments of the present invention through embodiments of the electronic device and the storage medium.

The electronic device of the present invention includes a Central Processing Unit (CPU) that 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 the operation of the device can also be stored. The CPU, ROM and RAM are connected to each other by a bus. An input/output (I/O) interface is also connected to the bus.

A plurality of components in a device are connected to an I/O interface, comprising: an input unit such as a keyboard, a mouse, etc.; an output unit such as various types of displays, speakers, and the like; a storage unit such as a magnetic disk, an optical disk, or the like; and communication units such as network cards, modems, wireless communication transceivers, and the like. The communication unit allows the device to exchange information/data with other devices via a computer network, such as the internet, and/or various telecommunication networks.

The processing unit performs the various methods and processes described above, such as the inventive method. For example, in some embodiments, the inventive methods may be implemented as a computer software program tangibly embodied on 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 onto the device via the ROM and/or the communication unit. One or more of the steps of the method of the invention described above may be performed when the computer program is loaded into RAM and executed by a CPU. Alternatively, in other embodiments, the CPU may be configured to perform the methods of the present invention by any other suitable means (e.g., by means of firmware).

The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), an Application Specific Standard Product (ASSP), a system on a chip (SOC), a Complex Programmable Logic Device (CPLD), and the like.

Program code for carrying out methods of the present invention may be written in any combination of one or more programming languages. These program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus such that the program code, when executed by the processor or controller, causes the functions/operations specified in the flowchart and/or block diagram to be implemented. The program code may execute entirely on the machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.

In the context of the present invention, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. The machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

While the invention has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.

Claims

1. The design method of the emergency shutdown function of the platform is applied to a CTCS2+ATO system, and is characterized in that after an emergency shutdown button pressed signal is collected by an interlocking system CBI, a signal machine leading to and starting from a corresponding platform rail is turned off; meanwhile, after the ground train control center TCC collects the signal of the emergency closing button pressed, a red code is sent to the vehicle-mounted signal system, and the vehicle-mounted signal system triggers emergency braking after receiving the red code.

2. The method for designing an emergency shutdown function for a platform according to claim 1, wherein the emergency shutdown button is provided on both the platform and the car control room IBP tray.

3. The method for designing an emergency shutdown function for a platform according to claim 2, wherein the emergency shutdown button is provided in plurality on the platform according to the length of the platform.

4. The method for designing an emergency shutdown function for a platform according to claim 2, wherein the emergency shutdown button is provided on a car control room IBP panel.

5. The method for designing an emergency shutdown function for a platform according to claim 1, wherein the interlock system CBI collects the signal that the emergency shutdown button is pressed through the interface cabinet.

6. The method for designing an emergency shutdown function for a platform according to claim 1, wherein the ground train control center TCC collects the signal that the emergency shutdown button is pressed through the interface cabinet.

7. The method for designing an emergency shutdown function for a platform according to claim 1, wherein the ground train control center TCC transmits a red code to the on-vehicle signaling system through a track circuit.

8. The method for designing an emergency shutdown function for a platform according to claim 1, wherein the red code range transmitted by the ground train control center TCC includes a platform rail and an outbound signal rear section.

9. The method for designing an emergency shutdown function for a platform according to claim 8, wherein a length of the rear section of the outbound signal is equal to a set value.

10. The method according to claim 9, wherein the set value is used to ensure that the train can trigger the emergency brake when the platform emergency shutdown button is pressed before the train tail is not completely separated from the platform.

11. The method of claim 9, wherein the set point is related to a length of a track section behind an outbound signal, a maximum train length, a system response time, and a maximum train speed.

12. A method of designing a station emergency shutdown function according to claim 9, wherein the set point is equal to the sum of the maximum train length L1 and the distance L2 travelled by the train during the system response time t.

13. The method for designing a platform emergency shutdown function according to claim 12, wherein the system response time t is a time from when the platform emergency shutdown button is pressed to when the on-board signal system triggers an emergency brake.

14. A method of designing a platform emergency shutdown function according to claim 12, wherein the distance L2 is equal to the train maximum speed V times the system response time t.

15. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor, when executing the program, implements the method of any of claims 1-14.

16. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any one of claims 1-14.