Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
  • B61L27/40—Handling position reports or trackside vehicle data
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L15/00—Indicators provided on the vehicle or train for signalling purposes
  • B61L15/0018—Communication with or on the vehicle or train
  • B61L15/0027—Radio-based, e.g. using GSM-R
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L21/00—Station blocking between signal boxes in one yard
  • B61L21/10—Arrangements for trains which are closely following one another
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
  • B61L25/02—Indicating or recording positions or identities of vehicles or trains
  • B61L25/025—Absolute localisation, e.g. providing geodetic coordinates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
  • B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L21/00—Station blocking between signal boxes in one yard
  • B61L21/06—Vehicle-on-line indication; Monitoring locking and release of the route
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
  • B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
  • B61L27/53—Trackside diagnosis or maintenance, e.g. software upgrades for trackside elements or systems, e.g. trackside supervision of trackside control system conditions

Definitions

• the present invention relates to a train signaling control system and, in particular, to a train sweeping method for a TACS, and a system, a device and a storage medium.
• the autonomous train control system (TACS) based on train-to-train communication takes a "trains-centralized" way and can compute movement authority by carborne controller (CC).
• the essence of the TACS is to transfer the wayside control functions of the conventional CBTC system to the onboard system and optimize the system architecture, with reduction of the number of wayside equipment, thereby significantly reducing the equipment maintenance workload.
• the TACS does not use conventional secondary detection equipment for train occupancy detection, the TACS lacks an effective way to safely and reliably know the train occupancy status of a line section. Therefore, in the TACS, how to sweep trains on the line is a huge challenge.
• the sweeping of degraded trains or non-communication trains relies on the detection of track occupancy to a great extent.
• the main track occupancy detection methods include track circuits and axle counters based on electromagnetic induction technology.
• the installation process of such secondary detection equipment is complex and needs a large number of cables, resulting in high construction and maintenance costs.
• the secondary detection equipment has the problem that correct sweeping cannot be completed due to its own failure.
• China Patent Publication No. CN114454923A discloses a train sweeping method and system based on an autonomous operation control mode.
• the method includes the following steps: an on-board device of a current train obtains axle counter status information from a switch controller; the on-board device of the current train obtains location information of other trains from on-board devices of other trains and the switch controller; the on-board device of the current train completes the sweeping of the current train according to the axle counter status information and the location information of other trains.
• the current urban rail transit train sweeping and determination function involves many equipment links with slow information transmission and determination, leading to a reduction in the efficiency of moving block tracking after the completion of train sweeping.
• An objective of the present invention is to provide a train sweeping method for a TACS, and a system, a device and a storage medium, in order to overcome the shortcomings in the cited reference.
• a train sweeping method for a TACS realizes confirmation of the train occupancy status of a line section by means of automatic train sweeping and manual train sweeping.
• the automatic train sweeping is performed by a communication train
• the manual train sweeping is performed by combination of local operator button confirmation and central dispatcher authorization.
• the non-main line section includes crossovers, storage lines or depot zones.
• the method specifically includes the following steps:
• the powering on and unlocking the WRC in step S101 is performed to ensure that the WRC works normally, performs normal intrusion detection and supervises the illegal entry of a train into a signalling zone during line section sweeping.
• the WRC sends the train occupancy status of line sections of the entire line in step S102 to an ATS for display.
• step S103 the specific process of the automatic train sweeping in step S103 is as follows:
• step S10312 when the automatic sweeping conditions for a section or automatic sweeping zone through which the physical location of the train passes are met, it is determined that there is no unknown train occupancy in the corresponding section.
• step S105 the specific process of the manual train sweeping in step S105 is as follows:
• a corresponding switch section is configured as a manual sweeping zone, and whether there is an unknown train in the section is manually confirmed.
• a system for the train sweeping method for the TACS includes a wayside resource controller (WRC), a train controller (xTC), an object controller (OC), an automatic traffic supervision system (ATS), an intelligent operation and maintenance system (IOM), a train intrusion detection system (TID), and a sweeping button (CZB);
• WRC is respectively communicatively connected with the xTC, the OC, the ATS, and the IOM.
• the OC is respectively communicatively connected with the TID and the CZB.
• the ATS is communicatively connected with the xTC.
• the ATS sends an operation task for line sweeping to the xTC according to the needs of train sweeping, and the xTC applies for resources to the WRC; the WRC transmits line section occupancy display to the ATS, and the ATS sends to the WRC a manual sweeping command for dispatching.
• a local operator uses the CZB to confirm whether there is an unknown train in a section and sends button information to the OC; the OC sends the button information to the WRC.
• the TID detects whether there is a train illegally intruding into the signaling zone.
• the IOM displays an operating status of TACS equipment.
• an electronic device including a memory and a processor.
• a computer program is stored in the memory, and the processor implements the method when executing the program.
• a computer-readable storage medium having stored thereon a computer program.
• the program implements the method when executed by a processor.
• the present invention has the following advantages:
• the TACS confirms the train occupancy status of line sections through automatic train sweeping and manual train sweeping.
• the WRC is successfully powered on, the WRC is powered on and unlocked by a WRC initialization command to ensure that the WRC works normally, performs normal intrusion detection, and supervises the illegal entry of a train into a signalling zone during line section sweeping. Then, it is determined whether to perform automatic train sweeping operation according to the line section occupancy status provided by the WRC.
• the automatic sweeping operation is completed, if there is still an unknown train occupied section in some special sections, manual sweeping operation needs to be performed to realize the process of train sweeping for all line sections.
• the present invention specifically includes the following steps:
• the crossover track section when the length of a single crossover is less than the minimum train length of the line plus the length of a flanking zone, the crossover track section may be configured as an automatic sweeping zone.
• the crossover track section When the communication train T1 passes through the switch P3 and is positioned and train T2 passes through the switch P5 and is positioned, the crossover track section may be automatically swept out.
• the ATS When the system is successfully powered on, the ATS sends an operation task for line sweeping to the xTC according to the needs of train sweeping; the xTC applies for resources to the WRC; the WRC transmits line section occupancy display to the ATS, and the ATS sends to the WRC a manual sweeping command for dispatching; a local operator uses the CZB to confirm whether there is an unknown train in a section and sends button information to the OC; the OC sends the button information to the WRC; the TID detects whether there is a train illegally intruding into the signalling zone; the IOM displays an operating status of TACS equipment. Through the information interaction between various subsystems, the TACS process train sweeping.
• Table 1 Interface Information transmitted 1 Operation task for sweeping sent by ATS to xTC 2 line resources applied for by xTC to WRC to perform sweeping operations 3 Line section occupancy status sent by WRC to ATS 4 Manual sweeping authorization command sent by ATS to WRC 5 Status information of local operator pressing the sweeping button 6 Sweeping button status information 7 Train illegal intrusion detection information 8 Operating status information of TACS equipment
• the flow chart of automatic train sweeping of the TACS is shown in FIG. 6-1 .
• the process of the automatic train sweeping is as follows:
• the flow chart of manual train sweeping of the TACS is shown in FIG. 6-2 .
• the process of the manual train sweeping is as follows:
• the TACS based on train-train communication mainly includes a wayside resource controller (WRC), a wayside train controller (WTC), an object controller (OC), an automatic traffic supervision system (ATS), an on-board controller (CC), an intelligent operation and maintenance system (IOM), and a train intrusion detection system (TID).
• WRC wayside resource controller
• WTC wayside train controller
• OC object controller
• ATS automatic traffic supervision system
• CC on-board controller
• IOM intelligent operation and maintenance system
• TID train intrusion detection system
• the WRC is responsible for line resource allocation and recovery, train line section occupancy management and other functions.
• the WTC is mainly responsible for managing and tracking failed trains, taking over failed trains for resource application and release, and interacting with adjacent trains.
• the OC is mainly responsible for the status collection and driving of wayside equipment, including collecting the status of manual sweeping buttons on the wayside.
• the CC requests and releases line resources according to a plan, actively controls trains, and realizes a train safety protection function and a train automatic operation function.
• the TID is mainly configured to detect whether there is a train illegally intruding into the signalling zone at the entrance of the signalling zone of the TACS.
• the IOM is mainly responsible for supervising the operating status of the equipment and providing alarms to maintenance personnel.
• the electronic device of the present invention includes a central processing unit (CPU) that perform various appropriate actions and processes in accordance with computer program instructions stored in a read-only memory (ROM) or computer program instructions loaded from a storage unit into a random access memory (RAM).
• the RAM may further store various programs and data required for the operation of the device.
• the CPU, the ROM, and the RAM are connected to each other by a bus.
• An input/output (I/O) interface is also connected to the bus.
• Multiple components in the device are connected to the I/O interface and include: an input unit, such as a keyboard and a mouse; an output unit, such as various types of displays and speakers; a storage unit, such as a magnetic disk and an optical disk; and a communication unit, such as a network card, a modem, and a wireless communication transceiver.
• the communication unit allows the device to exchange information/data with other devices over a computer network such as the Internet and/or various telecommunications networks.
• the processing unit performs various methods and processing described above, such as the method of S101 to S105.
• the method of S101 to S105 may be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as the storage unit.
• the computer program may be, in part or completely, loaded and/or installed onto the device via the ROM and/or the communication unit.
• the CPU may be configured, by any other suitable means (e.g., by means of firmware), to execute the method of S101 to S105.
• exemplary types of hardware logic components include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system on chip (SOC), complex programmable logic devices (CPLDs).
• FPGAs field programmable gate arrays
• ASICs application specific integrated circuits
• ASSPs application specific standard products
• SOC system on chip
• CPLDs complex programmable logic devices
• Program codes for implementing the method of the present invention may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
• the program codes may 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.
• a machine-readable medium may be a tangible medium that may contain or store a program for use by or in connection with a instruction execution system, apparatus, or device.
• the machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium.
• the machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination thereof.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Train Traffic Observation, Control, And Security (AREA)

Applications Claiming Priority (2)

Publications (2)

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• 2022
  • 2022-12-13 CN CN202211603707.2A patent/CN116039734B/zh active Active
• 2023
  • 2023-11-20 WO PCT/CN2023/132488 patent/WO2024125211A1/zh not_active Ceased
  • 2023-11-20 EP EP23902411.0A patent/EP4620775A4/de active Pending
• 2025
  • 2025-05-22 MX MX2025006027A patent/MX2025006027A/es unknown

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