Backup control system, method, equipment and medium for urban railway platform door linkage

Abstract

The invention belongs to the technical field of rail transit control, and relates to a city area railway platform door linkage backup control system, method, device and medium, the system comprises a vehicle-mounted device, a TCC, a vehicle-mounted radio station and a transponder, the vehicle-mounted radio station is installed in a cabinet and is in two-way communication with the TCC through a wireless network; the CTC device sends an ATO operation plan and temporary speed limit information to the vehicle-mounted device through the existing TSRS server or the TCC, and when the TSRS device breaks down, the vehicle-mounted device sends a door opening and closing control command to the TCC to achieve linkage of a vehicle door and a platform door. Compared with the prior art, wireless communication between the vehicle-mounted device and the TCC is added, after the TSRS device breaks down, the vehicle-mounted device obtains the ATO operation plan and the temporary speed limiting information through the TCC to control safe operation of the train, linkage control over the platform door is achieved through the TCC after the train arrives at the station and stops, and the usability of the system is improved.

Description

Technical Field

[0001] The present invention relates to the field of rail transit control technology, and in particular to a backup control system, method, equipment and medium for linkage of platform doors of urban railroads. Background Art

[0002] As a high-capacity rapid rail transit serving the city and facing the metropolitan area, the urban rail has the inherent advantage of interconnection and interoperability with the national railway, metropolitan intercity and urban rail because of the unified system. The passenger flow intensity at the city and metropolitan area level is relatively low, and it has the conditions for network operation. At present, the urban rail has been planned and applied in major cities in China. In order to protect the safety of platform passengers and prevent people from accidentally falling into the track area or touching the moving train, platform doors will be set up on the platform. At the same time, the platform door system will interface with the signal system. When the on-board equipment sends the vehicle system door switch command, it will also send the platform door switch command to TCC (train control center) through the ground equipment TSRS (temporary speed limit server). TCC receives the door opening / closing command sent by the on-board equipment and sends it to the platform door system. At the same time, the collected platform door status is sent to the on-board equipment through TSRS.

[0003] CN117184189A discloses a rail transit signal system and a communication method with a platform door system. However, the main problem solved by this method is to set the interlocking controller in the rail transit signal system in the platform door control room so as to adopt bus interface communication and / or direct communication between controllers to replace the existing communication method based on relay switch signals with the platform door system, reduce the distance between the interlocking controller and the platform door controller, and shorten the time difference of the linkage asynchronism between the door and the platform door. It does not consider the problem that when the TSRS equipment fails, the door / platform door linkage switch cannot be realized after the train arrives at the station, and the driver needs to report to the dispatcher to manually open and close the platform door, which affects the operation efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and to provide a backup control system, method, equipment and medium for the linkage of platform doors of urban railways. By increasing the wireless communication between the on-board equipment and TCC, after the TSRS equipment fails, the on-board equipment obtains the ATO (automatic train operation system) operation plan and temporary speed limit information through TCC to control the safe operation of the train. After the train stops at the station, the platform door linkage control is realized through TCC to improve the system availability.

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

[0006] According to the first aspect of the present invention, a backup control system for the linkage of platform doors on urban railways is provided. The system is based on the existing CTCS2+ATO train control system and realizes two-way wireless communication between the newly added on-board equipment and the TCC. In the event of a TSRS equipment failure, the on-board equipment controls the linkage switch of the platform door and the train door, as well as the sending of the ATO operation plan and the temporary speed limit of the section through communication with the TCC.

[0007] As a preferred technical solution, the system includes: on-board equipment, TCC, on-board radio and transponder, wherein the on-board radio is installed in a cabinet and communicates bidirectionally with TCC through a wireless network; the CTC equipment sends the ATO operation plan and temporary speed limit information to the on-board equipment through the existing TSRS server or TCC, and when the TSRS equipment fails, the on-board equipment realizes the linkage between the car door and the platform door by sending a door opening and closing control command to the TCC.

[0008] As a preferred technical solution, a TCC communication management information package is added to the interval transponder group in the adjacent section outside the station entrance signal, the exit passive transponder group and the transponder group at the TCC boundary.

[0009] As a preferred technical solution, the TCC communication management information package contains the device number and calling IP address of the TCC, which is used for the vehicle-mounted device to call the TCC and establish a connection.

[0010] According to a second aspect of the present invention, a backup control method for urban railway platform door linkage is provided, the method comprising the following steps:

[0011] Step 1: After the train departs from the station, it passes through the outbound transponder, and after obtaining the TCC call information from the transponder message, the on-board equipment actively establishes a two-way wireless communication session with the TCC according to the TCC call information;

[0012] Step 2: The onboard equipment periodically reports the train position to TCC, and TCC forwards the train position to CTC, and periodically sends the ATO operation plan and temporary speed limit information to the onboard equipment; when the onboard equipment and TSRS communicate normally, the onboard equipment uses the operation plan sent by TSRS to control the train operation; when the TSRS equipment fails, the onboard equipment uses the ATO operation plan sent by TCC to continue to control the train operation;

[0013] Step 3: After the train enters the station track and stops, the onboard equipment determines whether the train has stopped steadily and accurately and provides the train with a door opening permission instruction based on the platform side information received;

[0014] Step 4: When receiving a door opening / closing request, the onboard device sends a platform door opening / closing command to the TCC;

[0015] Step 5. If the on-board device receives valid platform door status information from TCC within the specified time after sending the platform door opening command to TCC, and the platform door status is consistent with the platform door opening and closing command requirements, the platform door linkage is considered successful; if the on-board device does not receive the platform door status information sent by TCC within the specified time after sending the platform door opening command to TCC, the platform door linkage is considered failed; if valid platform door status information is received within the specified time and the platform door status is open, the platform door linkage is considered successful.

[0016] As a preferred technical solution, when a train is running in a section, if encountering special circumstances, CTC needs to issue a temporary speed limit in the section, CTC will issue the temporary speed limit of the section to the on-board equipment through TCC, and the on-board equipment will generate a target speed control curve based on the temporary speed limit and line speed limit information to monitor the safe operation of the train.

[0017] As a preferred technical solution, the TCC call information includes the TCC device number and the call IP address.

[0018] As a preferred technical solution, the information interaction between the TCC and the vehicle-mounted equipment adopts a secure communication protocol to ensure the security of information transmission.

[0019] As an optimal technical solution, the step three is specifically as follows: after the train enters the station and stops, the on-board equipment obtains the train's precise parking position and platform side information from the parking position information package in the precise positioning transponder, and the ATO controls the train operation according to the precise parking position to achieve precise parking. When the on-board equipment determines that the distance error between the actual parking position of the train and the operating parking positioning reference point is within the safe parking window configured by the on-board equipment, it is considered that the train has stopped steadily and accurately, and a door opening permission instruction is provided to the train according to the received platform side information, and the steady and accurate stopping information is sent to TCC.

[0020] As a preferred technical solution, the step 4 is specifically as follows:

[0021] When the on-board device receives a door opening / closing request from the ATO or the driver, it checks whether the on-board ATP outputs the corresponding door opening / closing permission signal and whether the ATP door opening / closing permission switch is in the ATP permission position. If the on-board ATP outputs the corresponding door opening / closing permission signal and the ATP door opening / closing permission switch is in the ATP permission position, the on-board device outputs a door opening / closing command to the vehicle and sends a platform door opening / closing command to the TCC at the same time. After receiving the platform door opening / closing command from the on-board device, the TCC determines whether the conditions for opening / closing the platform door are met. If so, the relay is controlled to execute the platform door opening / closing command, and the platform door status is collected in real time, and the platform door status is periodically sent to the on-board device.

[0022] According to a third aspect of the present invention, there is provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, and the method described above is implemented when the processor executes the program.

[0023] According to a fourth aspect of the present invention, there is provided a computer-readable storage medium having a computer program stored thereon, wherein the program implements the method described when executed by a processor.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The backup control system and method proposed in the present invention can realize the linkage control of the train door and the platform door by wirelessly communicating with the TCC in the event of a TSRS device failure, thereby improving the system availability compared with the existing system.

[0026] (2) The backup control system and method proposed in the present invention enables the on-board equipment to obtain the ATO operation plan and temporary speed limit information through TCC in the event of a TSRS device failure, thereby improving the operating efficiency and driving safety in the event of a failure compared to the existing system.

[0027] (3) Based on the existing train control system architecture and equipment, the present invention implements backup control only by adding wireless messages, which can achieve compatibility with the existing train control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the backup control system composition of the platform door linkage of the present invention;

[0029] Figure 2 is a flow chart of the backup control method of the present invention;

[0030] Figure 3 This is a schematic diagram of the door / platform door linkage control information interaction. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; for example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

[0033] This embodiment provides a backup control system for the linkage between platform doors of urban railways. By combining the ground train control center equipment with the on-board equipment, the backup control of the linkage between train doors and platform doors is realized in the event of a TSRS equipment failure, thereby improving the availability of the system. Figure 1 As shown in the figure, based on the existing CTCS2+ATO train control system, the system adds two-way wireless communication between on-board equipment and TCC. In the event of TSRS equipment failure, the on-board equipment controls the linkage switch of the platform door and the train door, as well as the sending of the ATO operation plan and the temporary speed limit of the section through communication with the TCC.

[0034] The system includes: on-board equipment, TCC, on-board radio and transponder and other components, among which the on-board radio is installed in a cabinet and communicates bidirectionally with the TCC through a wireless network. A TCC communication management information package is added to the interval transponder group of the adjacent section outside the station entrance signal, the exit passive transponder group and the transponder group at the TCC boundary. The TCC communication management information package contains the device number and call IP address of the TCC, which is used by the on-board equipment to call the TCC and establish a connection. The CTC equipment sends the ATO operation plan and temporary speed limit information to the on-board equipment through the existing TSRS server or TCC, and when the TSRS equipment fails, the on-board equipment realizes the linkage between the car door and the platform door by sending the door opening and closing control command to the TCC.

[0035] The above is an introduction to the system embodiment. The following is a method embodiment to further illustrate the solution of the present invention.

[0036] like Figure 2 As shown, this embodiment provides a backup control method for the linkage of platform doors of urban railways. Based on the above system implementation, the process of realizing the interaction of door / platform door linkage control information between various components in the system is as follows: Figure 3 As shown, the method comprises the following steps:

[0037] Step 1: After the train departs from the station, it passes through the outbound transponder. After obtaining the TCC call information from the transponder message, the on-board device actively establishes a two-way wireless communication session with the TCC based on the TCC call information. The TCC call information includes the TCC device number and call IP address. The information exchange between the TCC and the on-board device adopts a secure communication protocol to ensure the security of information transmission.

[0038] Step 2: The onboard equipment periodically reports the train position to TCC, and TCC forwards the train position to CTC, and periodically sends the ATO operation plan and temporary speed limit information to the onboard equipment. When the onboard equipment communicates normally with TSRS, the onboard equipment uses the operation plan sent by TSRS to control the train operation; when the TSRS equipment fails, the onboard equipment continues to control the train operation using the ATO operation plan sent by TCC. In one embodiment, when the train is running in a section, if there are special circumstances and CTC needs to issue a temporary speed limit in the section, CTC issues the temporary speed limit of the section to the onboard equipment through TCC, and the onboard equipment generates a target speed control curve based on the temporary speed limit and line speed limit information to monitor the safe operation of the train.

[0039] Step 3: After the train enters the station track and stops, the on-board equipment determines whether the train has stopped steadily and accurately and provides the train with a door opening permission instruction based on the information received from the platform side.

[0040] Specifically: after the train enters the station and stops, the on-board equipment obtains the train's precise parking position and platform side information from the parking position information package in the precise positioning transponder. The ATO controls the train operation according to the precise parking position to achieve precise parking. When the on-board equipment determines that the distance error between the actual parking position of the train and the operating parking positioning reference point is within the safe parking window configured by the on-board equipment, it is considered that the train has stopped steadily and accurately. According to the received platform side information, the train is provided with a door opening permission instruction, and the stable and accurate stopping information is sent to TCC.

[0041] Step 4: When receiving the door opening and closing request, the on-board equipment sends the platform door opening and closing command to the TCC.

[0042] Specifically, when the onboard device receives a door opening / closing request from the ATO or the driver, it checks whether the onboard ATP outputs the corresponding door opening / closing permission signal and whether the ATP door opening / closing permission switch is in the ATP permission position. If the onboard ATP outputs the corresponding door opening / closing permission signal and the ATP door opening / closing permission switch is in the ATP permission position, the onboard device outputs the door opening / closing command to the vehicle and sends the platform door opening / closing command to the TCC at the same time. After the TCC receives the platform door opening / closing command from the onboard device, it determines whether the conditions for opening / closing the platform door are met. If they are met, it controls the relay to execute the platform door opening / closing command, collects the platform door status in real time, and periodically sends the platform door status to the onboard device. In one embodiment, after the TCC receives the platform door opening command from the onboard device, it determines whether the conditions for opening the platform door are met in combination with the train stopping conditions, the track, and the door opening command.

[0043] Step 5. If the on-board device receives valid platform door status information from TCC within the specified time after sending the platform door opening command to TCC, and the platform door status is consistent with the platform door opening and closing command requirements, the platform door linkage is considered successful; if the on-board device does not receive the platform door status information sent by TCC within the specified time after sending the platform door opening command to TCC, the platform door linkage is considered failed; if valid platform door status information is received within the specified time and the platform door status is open, the platform door linkage is considered successful.

[0044] After closing the doors and platform doors at the platform, the train will continue to travel to the next station.

[0045] The electronic device of the present invention includes 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). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0046] Multiple components in the device are connected to the I / O interface, including: input units, such as keyboards, mice, etc.; output units, such as various types of displays, speakers, etc.; storage units, such as disks, optical disks, etc.; and communication units, such as network cards, modems, wireless communication transceivers, etc. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunication networks.

[0047] The processing unit performs the various methods and processes described above, such as method steps 1 to 5. For example, in some embodiments, method steps 1 to 5 may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into the RAM and executed by the CPU, one or more of the method steps 1 to 5 described above may be executed. Alternatively, in other embodiments, the CPU may be configured to execute method steps 1 to 5 by any other appropriate means (e.g., by means of firmware).

[0048] 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: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), complex programmable logic devices (CPLDs), and the like.

[0049] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code can be executed entirely on the machine, partially on the machine, partially on the machine as a stand-alone software package and partially on a remote machine, or entirely on a remote machine or server.

[0050] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, 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 disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A backup control system for linkage of platform doors of urban railway, characterized in that: Based on the existing CTCS2+ATO train control system, the system adds two-way wireless communication between on-board equipment and TCC. In the event of a TSRS equipment failure, the on-board equipment communicates with TCC to control the linkage switching of the platform door and the train door, as well as the sending of the ATO operation plan and temporary speed limit in the section.

2. The backup control system for platform door linkage of urban railway according to claim 1, characterized in that: The system includes: on-board equipment, TCC, on-board radio and transponder, wherein the on-board radio is installed in a cabinet and performs two-way communication with TCC via a wireless network; the CTC equipment sends ATO operation plan and temporary speed limit information to the on-board equipment via an existing TSRS server or TCC, and when the TSRS equipment fails, the on-board equipment realizes the linkage between the car door and the platform door by sending a door opening and closing control command to TCC.

3. The backup control system for platform door linkage of urban railway according to claim 1, characterized in that: Add TCC communication management information packages to the interval balise group in the adjacent section outside the station entry signal, the outbound passive balise group and the balise group at the TCC boundary.

4. The backup control system for platform door linkage of urban railway according to claim 3, characterized in that: The TCC communication management information package includes the device number and calling IP address of the TCC, which is used for the vehicle-mounted device to call the TCC and establish a connection.

5. A backup control method for linkage of platform doors of urban railway, characterized in that: The method comprises the following steps: Step 1: After the train departs from the station, it passes through the outbound transponder, and after obtaining the TCC call information from the transponder message, the on-board equipment actively establishes a two-way wireless communication session with the TCC according to the TCC call information; Step 2: The onboard equipment periodically reports the train position to TCC, and TCC forwards the train position to CTC, and periodically sends the ATO operation plan and temporary speed limit information to the onboard equipment; when the onboard equipment and TSRS communicate normally, the onboard equipment uses the operation plan sent by TSRS to control the train operation; when the TSRS equipment fails, the onboard equipment uses the ATO operation plan sent by TCC to continue to control the train operation; Step 3: After the train enters the station track and stops, the onboard equipment determines whether the train has stopped steadily and accurately and provides the train with a door opening permission instruction based on the platform side information received; Step 4: When receiving a door opening / closing request, the onboard device sends a platform door opening / closing command to the TCC; Step 5. If the on-board device receives valid platform door status information from TCC within the specified time after sending the platform door opening command to TCC, and the platform door status is consistent with the platform door opening and closing command requirements, the platform door linkage is considered successful; if the on-board device does not receive the platform door status information sent by TCC within the specified time after sending the platform door opening command to TCC, the platform door linkage is considered failed; if valid platform door status information is received within the specified time and the platform door status is open, the platform door linkage is considered successful.

6. The backup control method for the linkage of platform doors of urban railway according to claim 5, characterized in that: When a train is running in a section, if CTC needs to issue a temporary speed limit in the section due to special circumstances, CTC will issue the temporary speed limit to the on-board equipment through TCC. The on-board equipment will generate a target speed control curve based on the temporary speed limit and line speed limit information to monitor the safe operation of the train.

7. The backup control method for the linkage of platform doors of urban railway according to claim 5, characterized in that: The TCC call information includes the TCC device number and the call IP address.

8. The backup control method for the linkage of platform doors of urban railway according to claim 5, characterized in that: The information interaction between the TCC and the vehicle-mounted equipment adopts a secure communication protocol to ensure the security of information transmission.

9. The backup control method for platform door linkage of urban railway according to claim 5, characterized in that: The specific steps of step three are as follows: after the train stops at the station, the on-board equipment obtains the precise parking position and platform side information of the train from the parking position information package in the precise positioning transponder, and the ATO controls the train operation according to the precise parking position to achieve precise parking. When the on-board equipment determines that the distance error between the actual parking position of the train and the operational parking positioning reference point is within the safe parking window configured by the on-board equipment, it is considered that the train has stopped steadily and accurately, and a door opening permission instruction is provided to the train according to the received platform side information, and the stable and accurate parking information is sent to the TCC.

10. The backup control method for platform door linkage of urban railway according to claim 5, characterized in that: The step 4 is specifically as follows: When the on-board device receives a door opening / closing request from the ATO or the driver, it checks whether the on-board ATP outputs the corresponding door opening / closing permission signal and whether the ATP door opening / closing permission switch is in the ATP permission position. If the on-board ATP outputs the corresponding door opening / closing permission signal and the ATP door opening / closing permission switch is in the ATP permission position, the on-board device outputs the door opening / closing command to the vehicle and sends the platform door opening / closing command to the TCC at the same time. After receiving the platform door opening / closing command from the on-board device, TCC determines whether the conditions for opening / closing the platform door are met. If so, it controls the relay to execute the platform door opening / closing command, collects the platform door status in real time, and periodically sends the platform door status to the on-board device.

11. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 5 to 10 is implemented.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 5 to 10 is implemented.

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