Platform door control method suitable for urban railway

Abstract

The invention relates to a platform door control method suitable for urban railways, which comprises the following steps that: in a normal communication state between vehicle-mounted equipment and a platform door control system, the vehicle-mounted equipment directly sends a platform door opening or closing command to the platform door control system, and then the platform door control system controls the opening or closing of a platform door; feeding back to the vehicle-mounted equipment so as to keep the normal operation of the train; when communication between the vehicle-mounted equipment and the platform door control system is abnormal, the train dispatching command center issues an isolation door command to isolate the vehicle-mounted equipment from the platform door control system, and the vehicle-mounted equipment controls the train to recover normal operation after receiving the isolation door command issued by the train dispatching command center. According to the vehicle-mounted equipment and the platform door control system, the platform door opening / closing command and the opening / closing state are interacted through safe communication, opening / closing of the platform door and door state feedback are completed in the shortest time, no other transfer links exist, fault points are fewer, and efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit systems, and in particular to a platform door control method applicable to urban railroads. Background Art

[0002] In recent years, driven by the commuting needs of large cities and surrounding towns and policy support, urban rail has developed rapidly, and many regions have planned and constructed urban rail projects.

[0003] The urban rail projects under construction generally use the Communication Based Train Control (CBTC) signal system or the Chinese Train Control System (CTCS). Among them, CBTC supports the needs of public transportation operations but does not have networking, and CTCS meets the requirements of networked operations but does not support public transportation. The two existing signal systems are not yet well suited for urban rail.

[0004] At the same time, the existing CBTC and CTCS signal systems have the following deficiencies in platform door control or protection:

[0005] 1) In the CBTC and CTCS signaling systems, the platform door opening / closing command is sent from the onboard equipment to the interlocking equipment through communication. The interlocking equipment drives the relay, and then controls the opening / closing of the platform door by closing or opening the relay contacts. There are many fault points, the reliability of platform door opening / closing is low, and the platform door opening / closing time is long, which affects the train operation interval;

[0006] 2) The CTCS signal system receives coded information from the track circuit through the train to provide protection after the platform door is opened. When the station conditions limit the possibility of laying track circuits, the CTCS signal system cannot provide protection after the platform door is opened due to the lack of coded information from the track circuit. The train may move and the personal safety of passengers cannot be guaranteed.

[0007] Therefore, designing a platform door control method suitable for urban rail that overcomes the above-mentioned defects is an urgent problem to be solved.

[0008] It should be understood that the above statements merely provide background technology related to the present invention and do not necessarily constitute prior art. Summary of the invention

[0009] The purpose of the present invention is to provide a platform door control method suitable for urban rail, so as to overcome the shortcomings of existing CBTC and CTCS signal systems in platform door control or protection.

[0010] In order to achieve the above-mentioned purpose, the present invention provides a platform door control method suitable for urban railways. When the on-board equipment and the platform door control system establish normal communication, the on-board equipment directly sends a platform door opening or closing command to the platform door control system, and then the platform door control system controls the opening or closing of the platform door and feeds back to the on-board equipment to keep the normal operation of the train; when an abnormality occurs in the communication between the on-board equipment and the platform door control system, the train dispatching command center issues an isolation door command to isolate the on-board equipment and the platform door control system. After receiving the isolation door command issued by the train dispatching command center, the on-board equipment controls the train to resume normal operation.

[0011] Preferably, the on-board equipment and the platform door control system establish a normal communication state, including the following steps: S101, during the operation of the train, the on-board equipment determines that the train head passes the platform door transponder; S102, the on-board equipment establishes a communication connection with the platform door control system; S201, the on-board equipment identifies the platform position where the train stops, and the train stops accurately and steadily at the platform; S202, the on-board equipment sends a platform door opening command to the platform door control system; S203, after receiving the platform door opening command, the platform door control system opens the corresponding platform door, and sends the platform door opening information to the on-board equipment to feedback the door opening status; S204, the on-board equipment receives the platform door opening information, and continues Braking is applied to the train and the train remains stationary; S301. The on-board equipment receives the operation plan provided by the train dispatching command center, and the train stops at the station; S302. The on-board equipment sends a platform door closing command to the platform door control system; S303. After receiving the platform door closing command, the platform door control system closes the corresponding platform door and sends the platform door closing information to the on-board equipment to feedback the closing status; S401. The on-board equipment receives the platform door closing information and the conditions for the train to depart from the station are met; S501. The train departs, the on-board equipment identifies the position of the rear of the train, and the rear of the train leaves the platform; S502. The on-board equipment disconnects the communication connection with the platform door control system.

[0012] Preferably, in the above-mentioned S101, when the on-board equipment determines that the locomotive head has not passed the platform door transponder, it makes another determination.

[0013] Preferably, in the above S201, when the onboard equipment determines that the train has not stopped accurately and steadily at the platform, it makes another determination.

[0014] Preferably, in the above-mentioned S301, when the on-board equipment determines that the train stop time has not been reached, it makes another determination.

[0015] Preferably, in the above S401, when the on-board equipment determines that the conditions for the train to depart from the station are not met, it makes another judgment.

[0016] Preferably, in the above-mentioned S501, when the on-board equipment determines that the rear end of the train has not left the platform, it makes another determination.

[0017] Preferably, the vehicle-mounted equipment is a vehicle signal control system, comprising: a safety communication module, a safety protection module, a transponder receiving module and an automatic driving module.

[0018] Preferably, in S101, the platform door transponder is arranged at the station entrance signal, and the station entrance signal is arranged beside the track when the vehicle enters the station; and a platform door transponder antenna is arranged on the locomotive head, and the platform door transponder antenna is connected to the transponder receiving module of the on-board device; when the vehicle enters the station, the platform door transponder antenna sweeps over the platform door transponder, and the platform door transponder antenna notifies the transponder receiving module of the on-board device, so that the on-board device establishes a communication connection with the platform door control system.

[0019] Preferably, in said S202 and said S302, the platform door opening command and closing command are calculated by the safety protection module of the vehicle-mounted equipment, and sent to the platform door control system through the safety communication module.

[0020] Preferably, positioning transponders are arranged at intervals on the ground beside the train track, and the platform door transponder antenna receives positioning information of the positioning transponder and sends it to the transponder receiving module of the on-board equipment for processing to realize autonomous positioning of the train.

[0021] Preferably, in the S201, the on-board equipment locates the position of the train itself by receiving the positioning information of the positioning transponder, and identifies the position of the platform to be stopped in combination with the electronic map, so as to determine whether the train has stopped at the platform; in the S501, the on-board equipment locates the position of the train itself by receiving the positioning information of the positioning transponder, and identifies the position of the platform to be stopped in combination with the electronic map, so as to determine whether the train has left the platform.

[0022] Preferably, in the above S201, when the train enters the platform, it will receive positioning information provided by a positioning transponder installed on the ground beside the track. The on-board equipment determines the distance between the train and the stopping point based on the positioning information provided by the positioning transponder, and then controls the train to slow down and move with the goal of reducing the speed of the train to 0 at the stopping point through the automatic driving module of the on-board equipment until the train stops at the stopping point.

[0023] Preferably, in the above S401, the condition for determining whether the train can depart from the station is: the departure route is locked and the ground signal is open to allow the signal.

[0024] Preferably, when an abnormality occurs in the communication between the on-board equipment and the platform door control system, the following steps are included: S112, the automatic driving module of the on-board equipment continues to apply brakes to the train, and the train stops; S113, the train dispatching command center issues an isolation door command to isolate the on-board equipment and the platform door control system, and the on-board equipment determines whether it has received the isolation door command; if yes, go to S114; if no, re-execute S113; S114, the on-board equipment cancels the applied brakes, and the train resumes normal operation.

[0025] Preferably, there are two situations in which abnormalities occur in the communication between the on-board equipment and the platform door system, namely: when the train enters the station, the on-board equipment and the platform door control system cannot establish communication; or after the train enters the station, during its operation or parking, the communication between the on-board equipment and the platform door control system is abnormal.

[0026] Preferably, in S113, the train dispatching command center is respectively connected to the vehicle-mounted control system and the platform door control system for communication, and is manually controlled to independently process the vehicle-mounted control system and the platform door control system.

[0027] The present invention also provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the platform door control method for an urban railroad as claimed in any one of claims 1 to 18 is implemented.

[0028] The present invention also provides an electronic device, including a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the platform door control method for the urban railroad described in any one of claims 1 to 18 is implemented.

[0029] In summary, compared with the prior art, the platform door control method applicable to urban rail provided by the present invention has at least the following beneficial effects:

[0030] (1) In this solution, the train directly sends the platform door control command to the platform door control system through the on-board equipment, without any other transfer links. Compared with the existing CBTC and CTCS signal system control method of platform doors, there are fewer failure points and a higher success rate for platform door opening / closing;

[0031] (2) According to calculations, compared with the existing CBTC and CTCS signal systems for controlling platform doors, the time from when the train issues an open / close door command to when the platform door opens / closes can be reduced by up to about 1.2 seconds, significantly shortening the train running interval and improving the operating efficiency.

[0032] (3) Compared with the existing CTCS signal system, the station of the present invention does not need to be equipped with track circuits, and the train of the present invention can complete the protection after the platform door is opened, ensuring that the train does not move and protecting the personal safety of passengers. Its use is not restricted by the type of trackside equipment and has a wider range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a flow chart of a method for controlling platform doors of an urban railway in a normal communication state according to the present invention;

[0034] Figure 2 The present invention is a flow chart of a method for controlling platform doors of an urban railway when an abnormal state occurs. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1 ~Attached Figure 2 , the present invention is further explained by describing a preferred specific embodiment in detail.

[0036] It should be noted that the drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the embodiments of the present invention, and are not used to limit the conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0037] It should be noted that, in the present invention, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] like Figure 1 As shown, the present invention provides a platform door control method for an urban railroad, in which the on-board equipment and the platform door control system establish a normal communication state, specifically comprising the following steps:

[0039] S101, during the train operation, the on-board equipment determines whether the train head passes the platform door transponder; if yes, go to S102; if no, re-execute S101 and make another determination;

[0040] S102, the onboard equipment establishes a communication connection with the platform door control system;

[0041] S201, the on-board equipment identifies the platform position where the train stops, and determines whether the train stops accurately and stably at the platform; if yes, go to S202; if no, re-execute S201 and make another determination;

[0042] S202, the onboard equipment sends a platform door opening command to the platform door control system;

[0043] S203, after receiving the platform door opening command, the platform door control system opens the corresponding platform door, and sends platform door opening information to the on-board device to feedback the door opening status;

[0044] S204, the onboard equipment receives the platform door opening information, and continuously applies brakes to the train, so that the train remains stationary;

[0045] S301, the on-board equipment receives the operation plan provided by the train dispatching command center and determines whether the train stop time has arrived; if yes, go to S302; if no, re-execute S301 and make another determination;

[0046] S302, the onboard equipment sends a platform door closing command to the platform door control system;

[0047] S303: After receiving the platform door closing command, the platform door control system closes the corresponding platform door and sends platform door closing information to the onboard device to feedback the closing status;

[0048] S401, the on-board equipment receives the platform door closing information and determines whether the train departure conditions are met; if yes, go to S501; if no, re-execute S401 and make another determination;

[0049] S501, the train departs, the onboard equipment identifies the position of the train's rear end, and determines whether the train's rear end has left the platform; if yes, go to S502; if no, re-execute S501 and make another determination;

[0050] S502: The onboard device disconnects the communication connection with the platform door control system.

[0051] It can be understood that the on-board equipment is specifically a vehicle signal control system, which includes a safety communication module, a safety protection module, a transponder receiving module and an automatic driving module, etc.

[0052] Furthermore, the platform door transponder is arranged at the station entrance signal, and the station entrance signal is arranged on the trackside when the vehicle enters the station; and a platform door transponder antenna is arranged on the train head, and the platform door transponder antenna is connected to the transponder receiving module of the on-board equipment.

[0053] Specifically, in S101, when a vehicle enters the station, the platform door transponder antenna sweeps over the platform door transponder. At this time, the platform door transponder antenna will notify the transponder receiving module of the on-board device, so that the on-board device establishes a communication connection with the platform door control system.

[0054] Furthermore, in the above-mentioned S202 and S302, the platform door opening command and the platform door closing command are calculated by the safety protection module of the vehicle-mounted equipment, and are sent to the platform door control system through the safety communication module.

[0055] Furthermore, positioning transponders are arranged at intervals on the ground beside the train track. The platform door transponder antenna can also receive positioning information of the positioning transponder and send it to the transponder receiving module of the on-board equipment for processing, so as to realize autonomous positioning of the train.

[0056] Specifically, in S201, the onboard equipment locates the position of the train itself by receiving the positioning information of the positioning transponder, and identifies the platform position of the stop in combination with the electronic map, so as to determine whether the train stops at the platform accurately.

[0057] Specifically, in S501, the onboard equipment locates the location of the train itself by receiving the positioning information of the positioning transponder, and identifies the location of the platform where the train stops in combination with the electronic map, so as to determine whether the train has left the platform.

[0058] Specifically, in the above S201, the train moves into the platform at a certain speed. During the process of entering the platform, it will receive positioning information provided by a positioning transponder installed on the ground beside the track. The on-board equipment determines the distance between the train and the stopping point based on the positioning information provided by the positioning transponder, and then controls the train to slow down and move with the goal of reducing the speed of the train to 0 at the stopping point through the automatic driving module of the on-board equipment until it stops at the stopping point.

[0059] Furthermore, in the above S204, when the platform door is opened, the automatic driving module of the on-board equipment continuously applies brakes to the train so that the train always remains stationary.

[0060] Furthermore, in the above S501, when the conditions for the train to depart from the station are met, the automatic driving module of the on-board equipment controls the train to start and depart.

[0061] Furthermore, in the above S401, the safety protection module of the on-board equipment determines whether the train can depart from the station under the following conditions: the departure route is locked, and the ground signal is open to allow the signal. Specifically, the path ahead of the train stopping is locked, and other trains are not allowed to enter, and the permission signal ahead of the train stopping is open to allow the train to pass.

[0062] like Figure 2 As shown, the present invention provides a platform door control method for an urban railroad, when the communication between the on-board equipment and the platform door control system is abnormal, specifically comprising the following steps:

[0063] S111, determine whether there is any abnormality in the communication between the onboard equipment and the platform door system; if not, go to S112', the train operates normally; if yes, go to S112;

[0064] S112, the automatic driving module of the on-board equipment continuously applies brakes to the train, and the train stops;

[0065] S113, the train dispatching command center issues an isolation door command to isolate the onboard equipment from the platform door control system, and the onboard equipment determines whether it has received the isolation door command; if yes, go to S114; if no, re-execute S113;

[0066] S114. The onboard equipment cancels the applied brakes and the train resumes normal operation.

[0067] Specifically, there are two situations in which abnormalities occur in the communication between the on-board equipment and the platform door system: one is that when the train enters the station, the on-board equipment and the platform door control system cannot establish communication; the other is that after the train enters the station, during operation or parking, the communication between the on-board equipment and the platform door control system is abnormal.

[0068] Furthermore, in S113, the train dispatching command center is respectively connected to the on-board equipment and the platform door control system for communication and is manually controlled, and can independently process the on-board equipment and the platform door control system.

[0069] In this embodiment, it has been calculated that compared with the existing CBTC and CTCS signal systems for controlling platform doors, the time from the train issuing an open / close door command to the platform door opening / closing can be reduced by up to about 1.2s, which significantly shortens the train running interval, improves operating efficiency, and has great practical value.

[0070] In summary, the present invention provides a platform door control method suitable for urban rail, in which the on-board equipment and the platform door control system exchange platform door opening / closing commands and opening / closing status through secure communication, complete the opening / closing of the platform door and door status feedback in the shortest time, and have no other transfer links. Compared with the existing CBTC and CTCS signal systems for controlling platform doors, the method has fewer fault points and a higher success rate for opening / closing the platform door; and compared with the existing CTCS signal system, the station does not have a track circuit, and the train in this scheme can also complete the protection after the platform door is opened, ensuring that the train does not move and protecting the personal safety of passengers. Its use is not restricted by the type of trackside equipment and has a wider range of applications.

[0071] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A platform door control method applicable to urban railroad, characterized in that: When the on-board device and the platform door control system establish normal communication, the on-board device directly sends a platform door opening or closing command to the platform door control system, and then the platform door control system controls the opening or closing of the platform door and feeds back to the on-board device to keep the normal operation of the train; When an abnormality occurs in the communication between the on-board equipment and the platform door control system, the train dispatching command center issues an isolation door command to isolate the on-board equipment from the platform door control system. After receiving the isolation door command issued by the train dispatching command center, the on-board equipment controls the train to resume normal operation.

2. The platform door control method for the urban railroad according to claim 1, characterized in that: When the on-board equipment and the platform door control system establish normal communication, the following steps are included: S101, during the train operation, the onboard equipment determines that the train head passes through the platform door transponder; S102, the onboard equipment establishes a communication connection with the platform door control system; S201, the on-board equipment identifies the platform location where the train stops, and the train stops accurately and stably at the platform; S202, the onboard equipment sends a platform door opening command to the platform door control system; S203, after receiving the platform door opening command, the platform door control system opens the corresponding platform door, and sends platform door opening information to the on-board device to feedback the door opening status; S204, the onboard equipment receives the platform door opening information, and continuously applies brakes to the train, so that the train remains stationary; S301, the on-board equipment receives the operation plan provided by the train dispatching command center, and the train stop time arrives; S302, the onboard equipment sends a platform door closing command to the platform door control system; S303: After receiving the platform door closing command, the platform door control system closes the corresponding platform door and sends platform door closing information to the onboard device to feedback the closing status; S401, the onboard equipment receives the platform door closing information, and the train departure conditions are met; S501, the train departs, the onboard equipment identifies the position of the rear of the train, and the rear of the train leaves the platform; S502: The onboard device disconnects the communication connection with the platform door control system.

3. The platform door control method for urban railroad according to claim 2, characterized in that: In the above-mentioned S101, when the on-board equipment determines that the locomotive has not passed the platform door transponder, it makes another determination.

4. The platform door control method for urban railroad according to claim 2, characterized in that: In the above-mentioned S201, when the on-board equipment determines that the train has not stopped accurately and steadily at the platform, it makes another determination.

5. The platform door control method for urban railroad according to claim 2, characterized in that: In the above-mentioned S301, when the on-board equipment determines that the train stop time has not been reached, it makes another determination.

6. The platform door control method for urban railroad according to claim 2, characterized in that: In the above-mentioned S401, when the on-board equipment determines that the conditions for the train to depart from the station are not met, it makes another determination.

7. The platform door control method for urban railroad according to claim 2, characterized in that: In the above-mentioned S501, when the on-board equipment determines that the rear end of the train has not left the platform, it makes another determination.

8. The platform door control method for urban railroad according to claim 2, characterized in that: The vehicle-mounted device is a vehicle signal control system, which includes: a safety communication module, a safety protection module, a transponder receiving module and an automatic driving module.

9. The platform door control method of the urban railroad according to claim 8, characterized in that: In the above S101, the platform door transponder is arranged at the station entrance signal, and the station entrance signal is arranged beside the track when the vehicle enters the station; and a platform door transponder antenna is arranged on the train head, and the platform door transponder antenna is connected to the transponder receiving module of the vehicle-mounted equipment; When a vehicle enters the station, the platform door transponder antenna sweeps over the platform door transponder, and the platform door transponder antenna notifies the transponder receiving module of the on-board device, so that the on-board device establishes a communication connection with the platform door control system.

10. The platform door control method of the urban railroad according to claim 8, characterized in that: In the above-mentioned S202 and S302, the platform door opening command and the platform door closing command are calculated by the safety protection module of the vehicle-mounted equipment, and are sent to the platform door control system through the safety communication module.

11. The method for controlling platform doors of an urban railway according to claim 8, characterized in that: Positioning transponders are arranged at intervals on the ground beside the train track. The platform door transponder antenna receives positioning information of the positioning transponder and sends it to the transponder receiving module of the on-board equipment for processing to realize autonomous positioning of the train.

12. The platform door control method for urban railroad according to claim 12, characterized in that: In the above S201, the onboard equipment locates the location of the train itself by receiving the positioning information of the positioning transponder, and identifies the platform location of the stop in combination with the electronic map, so as to determine whether the train stops at the platform accurately; In the above-mentioned S501, the on-board equipment locates the position of the train itself by receiving the positioning information of the positioning transponder, and identifies the position of the platform where the train stops in combination with the electronic map, so as to determine whether the train has left the platform.

13. The platform door control method for urban railroad according to claim 8, characterized in that: In the above S201, when the train enters the platform, it will receive positioning information provided by the positioning transponder installed on the ground beside the track. The on-board equipment determines the distance between the train and the stopping point based on the positioning information provided by the positioning transponder, and then controls the train to slow down and move with the goal of reducing the speed of the train to 0 at the stopping point through the automatic driving module of the on-board equipment until it stops at the stopping point.

14. The platform door control method for urban railroad according to claim 8, characterized in that: In the above-mentioned S401, the conditions for judging whether the train can depart from the station are: the departure route is locked and the ground signal is open to allow the signal.

15. The platform door control method for urban railroad according to claim 1, characterized in that: When an abnormality occurs in the communication between the onboard equipment and the platform door control system, the following steps are included: S112, the automatic driving module of the on-board equipment continuously applies brakes to the train, and the train stops; S113, the train dispatching command center issues an isolation door command to isolate the onboard equipment from the platform door control system, and the onboard equipment determines whether it has received the isolation door command; if yes, go to S114; No, execute S113 again; S114. The onboard equipment cancels the applied brakes and the train resumes normal operation.

16. The platform door control method for urban railroad according to claim 15, characterized in that: There are two situations in which communication abnormalities occur between the on-board equipment and the platform door system: when the train enters the station, the on-board equipment and the platform door control system cannot establish communication; or after the train enters the station, during its operation or parking, communication abnormalities occur between the on-board equipment and the platform door control system.

17. The platform door control method for urban railroad according to claim 15, characterized in that: In the S113, the train dispatching command center is respectively connected to the vehicle-mounted control system and the platform door control system for communication, and is manually controlled to independently process the vehicle-mounted control system and the platform door control system.

18. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the platform door control method for an urban railroad according to any one of claims 1 to 17 is implemented.

19. An electronic device, characterized in that: The method comprises a processor and a memory, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the platform door control method for the urban railroad according to any one of claims 1 to 17 is implemented.

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