A platform door linkage control method for flexible marshaling of urban rail transit

Abstract

The present invention relates to a platform door linkage control method for flexible train formations in urban rail transit. The method comprises the following steps: Step S1) dividing platform doors into zones based on the parking positions of the train formation type; Step S2) after the train stops at a station, sending a door opening and closing command to a trackside system via an onboard system based on the corresponding door opening and closing command relationship with the platform door; Step S3) the trackside system performs a consistency check on the received door opening and closing commands and forwards valid door opening and closing commands to the platform door system; Step S4) the platform door system controls the opening or closing of specific platform doors based on the door opening and closing commands; Step S5) the platform door system provides the trackside system with the closing and locking status of each platform door zone, and the trackside system forwards the closing and locking status of the platform door zone to the onboard system. Compared with existing technologies, the present invention has the advantages of improving platform door utilization and passenger boarding and disembarking efficiency.

Description

Technical Field

[0001] The present invention relates to a platform door linkage control method, in particular to a platform door linkage control method for flexible marshaling of urban rail transit. Background Art

[0002] When an urban rail transit train stops at a station with platform doors, the signal system realizes the linkage opening and closing of the train doors and platform doors in automatic mode to complete the boarding and alighting service. Usually, the signal system sends a single door opening or closing command to the platform door to open or close all the platform doors, and the platform door then feeds back the closed and locked status of all the platform doors to the system. Currently, for lines with flexible train formations, the signal system needs to send platform door opening and closing commands corresponding to different train formations (i.e., different train types) to the platform door. However, when the coupled train is decoupled into two single train formations at the platform, each single train formation needs to control different platform doors to open and close according to the parking position, and the original system of sending different platform door opening and closing commands by train type is no longer applicable to this scenario. Summary of the Invention

[0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a platform door linkage control method for flexible grouping of urban rail transit.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] According to a first aspect of the present invention, a method for controlling platform doors in flexible marshaling of urban rail transit is provided, the method comprising the following steps:

[0006] Step S1) dividing the platform doors into zones according to the parking positions of the train types;

[0007] Step S2) After the train stops at the station, the onboard system sends a door opening and closing command to the trackside system based on the corresponding door opening and closing command relationship with the platform door;

[0008] Step S3) The wayside system performs a consistency check on the received door opening and closing commands and forwards the valid door opening and closing commands to the platform door system;

[0009] Step S4) the platform door system controls the specific platform door to open or close according to the door opening and closing command;

[0010] Step S5) The platform door system provides the trackside system with the closing and locking status of each platform door area. The trackside system forwards the closing and locking status of the platform door area to the onboard system, which implements the departure permission function and the platform door accidental opening protection function.

[0011] As a preferred technical solution, the types of marshaled trains in step S1) include single marshaled trains and coupled marshaled trains.

[0012] As an optimal technical solution, the area division in step S1) is specifically as follows: the platform door area corresponding to the conductor of the coupled train, the platform door area corresponding to the conductor of the first single train, and the platform door area corresponding to the conductor of the second single train.

[0013] As an optimal technical solution, the platform door area corresponding to the length of the first single-carriage train is the platform door area where the train stops with the front of the train facing the head of the platform; the platform door area corresponding to the length of the second single-carriage train is the platform door area where the train stops with the rear of the train facing the rear of the platform.

[0014] As a preferred technical solution, the door opening and closing commands in step S2) include a door opening command and a door closing command, "1" indicates that the command is valid, and "0" indicates that the command is invalid.

[0015] As an optimal technical solution, the corresponding door opening and closing command relationship in step S2) is specifically as follows: when the train's on-board system calculates that the train length is completely within the corresponding platform door area and stops on time according to the train operation task, the door is opened and closed by sending the door opening and closing command of the corresponding platform door area.

[0016] As a preferred technical solution, the consistency check in step S3) is specifically as follows: for the same platform door area, when a valid door opening command is received from one train and a valid door closing command is received from another train at the same time, it is determined that the door opening and closing command of this platform door area is invalid.

[0017] As a preferred technical solution, the door opening and closing commands in step S4) are valid door opening and closing commands for each train received by the trackside system of the same platform.

[0018] As a preferred technical solution, the method is applicable to fixed block systems, quasi-mobile block systems and mobile block systems.

[0019] As an optimal technical solution, the method described is applicable to signal systems that use train coupling and uncoupling functions and platform door linkage control under the CBTC system, CTCS system, ETCS system, PTC system, ITCS system and TACS system standards.

[0020] According to a third aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0021] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0022] Compared with the prior art, the present invention has the following advantages:

[0023] 1. It can support the linkage control of different platform doors by multiple trains at the same platform at the same time, thereby improving the utilization rate of platform resources.

[0024] 2. This function supports coupled trains with flexible marshaling lines. After being demarshalled into two single trains at the same platform, the corresponding platform door switches can be controlled separately to enable passengers to get on and off, thereby improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The corresponding division relationship between train formation and platform door area;

[0026] Figure 2 The correspondence between train formation, parking position and door opening and closing commands;

[0027] Figure 3 Schematic diagram of opening the platform door for a coupled train;

[0028] Figure 4 Schematic diagram of closing the platform door for single-unit train TU1;

[0029] Figure 5 Schematic diagram of closing the platform door for single-unit train TU2. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] Example

[0032] The present invention provides a platform door linkage control method for flexible grouping of urban rail transit, such as Figure 1 As shown in the figure, according to the parking position of the train type (single train and coupled train), the platform door area (PSD zone) of each platform is divided in the system: the platform door area of ​​the coupled train corresponds to the PSD zone ID = X, and this PSD zone is only applicable to the coupled train; the platform door area of ​​the single train (such as Figure 1The TU1 parking position in the figure) is used to align the train head with the platform door area where the train stops at the platform head (i.e. the train door corresponds to the platform door on the half side of the platform head), corresponding to PSD zone ID = Xa. This PSD zone is only applicable to single-unit trains; single-unit trains (such as Figure 1 TU2 parking position in the figure), with the rear of the train aligned with the platform door area at the rear end of the platform (i.e., the train door corresponds to the half-side platform door at the rear end of the platform one to one), corresponding to PSD zone ID = Xb. This PSD zone is only applicable to single-marshaling trains.

[0033] like Figure 2 As shown, when the train stops at the station, the correspondence between the door opening and closing commands of the train on the platform and the platform door is as follows: when the on-board system of a single-marshaling train calculates that the train length is completely within the range of PSD zone ID=Xa and stops accurately according to the train operation task, it is necessary to send a door opening and closing command containing the PSD ID=Xa identifier to open and close the door; when the on-board system of a single-marshaling train calculates that the train length is completely within the range of PSD zone ID=Xb and stops accurately according to the train operation task, it is necessary to send a door opening and closing command containing the PSDID=Xb identifier to open and close the door; when the on-board system of a coupled marshaling train calculates that the train length is completely within the range of PSDzone ID=X and stops accurately, it is necessary to send a door opening and closing command containing the PSD ID=X identifier (or containing PSD ID=Xa and PSD ID=Xb, which can be selected and designed according to the application situation) to open and close the door.

[0034] like Figure 3 、 Figure 4 、 Figure 5 As shown, the control method includes the following steps:

[0035] (1) When a coupled train stops at a station, it is located in PSD zone ID = 80. TU1 is the control train (lead train) and sends a door-opening command to the wayside system (since TU1 is already in this PSD zone and ahead of TU2, TU2 does not communicate with the wayside system). The wayside system sends a PSD 80 door-opening command to the platform door system. The platform door system opens the platform door corresponding to PSD 80 and reports the opening status of PSD 80 / PSD 81 / PSD 82 (PSD 80 covers PSD 81 and PSD 82) to the wayside system.

[0036] (2) When the coupled train is disassembled at the platform, PSD zone ID = 80 is not applicable to the train type of a single-train. Instead, TU1 is located in PSD zone ID = 81 and TU2 is located in PSD zone ID = 82. The two TU trains initiate communication with the trackside system separately. According to the train operation task, TU1 sends the PSD 81 door closing command. The trackside system sends the PSD81 door closing command to the platform door system. The platform door system closes the platform door corresponding to PSD 81 and feedbacks the PSD 81 closing status to the trackside system. After TU1's onboard system receives the PSD 81 closing status, if other departure conditions are met, it departs the station according to the train operation task. According to the train operation task, TU2 does not need to send the door closing command for the time being, so all command code bits are 0, and it continues to stop at the platform waiting for passengers to board.

[0037] (3) According to the train operation task, TU2 sends the PSD 82 door closing command, and the wayside system sends the PSD82 door closing command to the platform door system. The platform door system closes the platform door corresponding to PSD 82 and feeds back the PSD 82 / PSD 80 closing status to the wayside system. After the on-board system of TU2 receives the PSD 82 closing status, it departs the station according to the train operation task if other departure conditions are met.

[0038] The present invention also provides an embodiment of an electronic device and a storage medium, wherein the electronic device 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.

[0039] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0040] The processing unit performs the various methods and processes described above, such as methods S1 to S5. For example, in some embodiments, methods S1 to S5 can 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 can 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 steps of methods S1 to S5 described above can be performed. Alternatively, in other embodiments, the CPU can be configured to execute methods S1 to S5 by any other appropriate means (for example, by means of firmware).

[0041] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and 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 chip (SOCs), programmable logic devices (CPLDs), and the like.

[0042] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code 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 when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0043] In the context of the present invention, machine-readable medium can be a tangible medium that can contain or store a program for use with an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. Machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of machine-readable storage media can include electrical connections based on one or more lines, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0044] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A platform door linkage control method for flexible marshaling of urban rail transit, characterized in that: The method comprises the following steps: Step S1) dividing the platform doors into zones according to the parking positions of the train types; Step S2) After the train stops at the station, the onboard system sends a door opening and closing command to the trackside system based on the corresponding door opening and closing command relationship with the platform door; Step S3) The wayside system performs a consistency check on the received door opening and closing commands and forwards the valid door opening and closing commands to the platform door system; Step S4) the platform door system controls the specific platform door to open or close according to the door opening and closing command; Step S5) The platform door system provides the trackside system with the closing and locking status of each platform door area. The trackside system forwards the closing and locking status of the platform door area to the onboard system, which implements the departure permission function and the platform door accidental opening protection function. The consistency check in step S3) is specifically as follows: for the same platform door area, when a valid door opening command is received from one train and a valid door closing command is received from another train at the same time, it is determined that the door opening and closing command of this platform door area is invalid.

2. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The types of marshaled trains in step S1) include single marshaled trains and coupled marshaled trains.

3. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The area division in step S1) is specifically as follows: the platform door area corresponding to the train conductor of the coupled train, the platform door area corresponding to the train conductor of the first single train, and the platform door area corresponding to the train conductor of the second single train.

4. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 3 is characterized in that: The platform door area corresponding to the train leader of the first single-formation train is the platform door area where the train stops with the front of the train facing the head of the platform; the platform door area corresponding to the train leader of the second single-formation train is the platform door area where the train stops with the rear of the train facing the rear of the platform.

5. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The door opening and closing commands in step S2) include a door opening command and a door closing command, "1" indicates that the command is valid, and "0" indicates that the command is invalid.

6. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The corresponding door opening and closing command relationship in step S2) is specifically as follows: when the train's onboard system calculates that the train length is completely within the corresponding platform door area and stops on time according to the train operation task, the door is opened and closed by sending the door opening and closing command of the corresponding platform door area.

7. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The door opening and closing commands in step S4) are valid door opening and closing commands for each train received by the trackside system of the same platform.

8. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The method is applicable to fixed block systems, quasi-mobile block systems and mobile block systems.

9. The platform door linkage control method for flexible marshaling of urban rail transit according to claim 1 is characterized in that: The method is applicable to signal systems using train coupling and uncoupling functions in conjunction with platform door control under the CBTC system, CTCS system, ETCS system, PTC system, ITCS system and TACS system standards.

10. 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 1 to 9 is implemented.

11. 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 1 to 9 is implemented.

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