WO2024093668A1 - Procédé et système de commande d'opération de train - Google Patents

Procédé et système de commande d'opération de train Download PDF

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Publication number
WO2024093668A1
WO2024093668A1 PCT/CN2023/125028 CN2023125028W WO2024093668A1 WO 2024093668 A1 WO2024093668 A1 WO 2024093668A1 CN 2023125028 W CN2023125028 W CN 2023125028W WO 2024093668 A1 WO2024093668 A1 WO 2024093668A1
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WO
WIPO (PCT)
Prior art keywords
control unit
signal system
vehicle control
vehicle
train
Prior art date
Application number
PCT/CN2023/125028
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English (en)
Chinese (zh)
Inventor
周延昕
耿鹏
孙晓光
吴亮
杨迪飞
马新成
曹学思
赵悦彤
徐之栋
王海南
Original Assignee
中国铁路通信信号股份有限公司
通号城市轨道交通技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 中国铁路通信信号股份有限公司, 通号城市轨道交通技术有限公司 filed Critical 中国铁路通信信号股份有限公司
Publication of WO2024093668A1 publication Critical patent/WO2024093668A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the present invention relates to the field of rail transit technology, and in particular to a train operation control method and system.
  • interfaces between urban rail transit onboard signal systems and vehicles there are two types of interfaces between urban rail transit onboard signal systems and vehicles: digital input and output hard-wired interfaces and communication interfaces.
  • interface data with higher requirements for real-time or security are basically carried out in hard-wired mode.
  • the hard-wired interface between the vehicle signal system and the vehicle control unit has the following four main defects:
  • the train operation control method and system provided by the present invention are used to solve the above-mentioned problems existing in the prior art.
  • the train Ethernet is used to realize the data exchange between the on-board signal system and the vehicle control unit, ensuring that communication anomalies occur during the data exchange process. Meet the train control needs at the same time.
  • the present invention provides a train operation control method, comprising:
  • the on-board signal system and the vehicle control unit communicate with each other based on the train real-time data protocol and through the train Ethernet;
  • the emergency braking command is sent by the vehicle signal system to the vehicle control unit when the communication abnormality occurs in the vehicle control unit.
  • the step of determining whether the first data sent by the on-board signal system within a continuous preset period are all invalid comprises:
  • the updated first error count is greater than or equal to the first preset value, it is determined that the first data sent by the vehicle signal system within a continuous preset period are all invalid.
  • determining that the vehicle control unit has the communication abnormality includes:
  • the updated second error count is greater than or equal to the second preset value, it is determined that a communication abnormality occurs in the vehicle control unit.
  • the safety integrity levels of the on-board signal system and the vehicle control unit are both SIL4.
  • a periodic communication mode is adopted between the on-board signal system and the vehicle control unit, and a redundant network design is adopted.
  • the present invention also provides a train operation control system, comprising: a judgment module and a control module;
  • the judging module is used to judge whether the first data sent by the vehicle signal system within a continuous preset period are all invalid;
  • the control module is used to determine that if so, a communication abnormality occurs in the on-board signal system, and send an emergency braking command to the train braking control unit through the vehicle control unit;
  • the on-board signal system and the vehicle control unit communicate with each other based on the train real-time data protocol and through the train Ethernet;
  • the emergency braking command is sent by the vehicle signal system to the vehicle control unit when the communication abnormality occurs in the vehicle control unit.
  • the present invention also provides an electronic device, comprising a processor and a computer program stored therein.
  • the memory is configured to implement any of the above-mentioned train operation control methods when the processor executes the program.
  • the present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the train operation control method described in any one of the above is implemented.
  • the present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the train operation control method described above is implemented.
  • the train operation control method and system provided by the present invention in order to solve the defect of using a hard-wired interface between the on-board signal system and the vehicle control unit, adopts train Ethernet to realize data exchange between the on-board signal system and the vehicle control unit based on the train real-time data protocol, and ensures that the train control requirements are met when communication abnormalities occur during the data exchange process.
  • FIG1 is a schematic flow chart of a train operation control method provided by the present invention.
  • FIG2 is a schematic diagram of the vehicle signal system and vehicle communication topology provided by the present invention.
  • FIG. 3 is a schematic diagram of a process flow of a vehicle control unit provided by the present invention for handling communication anomalies
  • FIG. 4 is a schematic diagram of a process flow for handling communication anomalies in a vehicle-mounted signal system provided by the present invention
  • FIG5 is a schematic diagram of the structure of a train operation control system provided by the present invention.
  • FIG. 6 is a schematic diagram of the physical structure of the electronic device provided by the present invention.
  • FIG1 is a flow chart of a train operation control method provided by the present invention. As shown in FIG1 , the method includes:
  • Step 100 determining whether the first data sent by the vehicle signal system within a continuous preset period are all invalid
  • Step 200 If yes, it is determined that a communication abnormality occurs in the vehicle signal system, and an emergency braking command is sent to the train braking control unit through the vehicle control unit;
  • the on-board signal system and the vehicle control unit communicate with each other based on the train real-time data protocol and through the train Ethernet;
  • the emergency brake command is sent to the vehicle control unit by the on-board signal system when a communication abnormality occurs in the vehicle control unit.
  • execution subject of the above method may be a computer device.
  • the onboard signal system and the vehicle control unit communicate using Ethernet based on the Train Real-time Data Protocol (TRDP) protocol that complies with the IEC61375-2-3 specification.
  • TRDP Train Real-time Data Protocol
  • the network topology diagram is shown in Figure 2.
  • the onboard signal system at the front of the train and the onboard signal system at the rear of the train communicate with the vehicle control unit respectively.
  • the main communication data content between the onboard signal system and the vehicle control unit is shown in Table 1.
  • the safety output of the on-board signal system can smoothly reach the vehicle actuator (such as train brake control unit), and the present invention, on the basis of TRDP agreement, superimposes the railway signal safety communication protocol (RSSP-I) to realize the safe communication of data.
  • RSSP-I railway signal safety communication protocol
  • the first data sent by the vehicle signal system to the vehicle control unit may be Specifically including: on-board signal system life signal, maximum normal braking, traction cut-off, door permission, traction/braking command, traction/braking level, driving mode, return mode, door opening command, door closing command, zero speed indication and activation indication.
  • the train operation control method provided by the present invention in order to solve the defect of using a hard-wire interface between the on-board signal system and the vehicle control unit, uses train Ethernet to realize data exchange between the on-board signal system and the vehicle control unit based on the train real-time data protocol, thereby ensuring that the train control requirements are met when communication abnormalities occur during the data exchange process.
  • step 100 may specifically include:
  • Step 1001 if it is determined that a communication error occurs when the vehicle signal system sends first data to the vehicle control unit, or if it is determined that the vehicle control unit does not receive the first data sent by the vehicle signal system, then a first error count is updated according to a first preset accumulated value;
  • Step 1002 if it is determined that no communication error occurs when the vehicle signal system sends the first data to the vehicle control unit, or if it is determined that the vehicle control unit receives the first data sent by the vehicle signal system, then the first error count is updated according to the first preset cumulative decrement value;
  • Step 1003 If the updated first error count is greater than or equal to the first preset value, it is determined that the first data sent by the vehicle signal system within a continuous preset period are invalid.
  • the vehicle control unit does not receive the first data sent by the vehicle signal system, it is also considered that the data is erroneous, and the first error count is updated according to the first preset accumulated value.
  • the first preset accumulated value and the initial value of the first error count may be freely set according to actual needs, and the present invention does not impose any specific limitation on this.
  • the first error count is set to 0, the first preset accumulated value is set to 1, and when it is determined that a communication error occurs when the vehicle signal system sends the first data to the vehicle control unit, or when it is determined that the vehicle control unit does not receive the first data sent by the vehicle signal system, When the first data is obtained, the first error count is updated after adding the first preset accumulated value to the first error count.
  • the first error count is updated according to the first preset cumulative decrement value.
  • the first preset cumulative reduction value can be freely set according to actual needs, and the present invention does not make any specific limitation on this.
  • the first preset cumulative decrement value is set to 1.
  • the first error count is updated by subtracting the first preset cumulative decrement value.
  • the vehicle control unit considers that the emergency braking command sent by the on-board signal system is valid, and outputs the emergency braking command to the vehicle actuator (such as the train braking control unit).
  • the train operation control method provided by the present invention adopts the RSSP-I protocol to realize safe communication on the basis of the TRDP protocol, and ensures driving safety when the communication of the on-board signal system is abnormal.
  • whether a communication abnormality occurs in the vehicle control unit is determined by:
  • Step 1 If the second data sent by the vehicle control unit within a continuous preset period are all invalid, it is determined that a communication abnormality occurs in the vehicle control unit.
  • step 1 may specifically include:
  • Step 11 If it is determined that a communication error occurs when the vehicle control unit sends the second data to the vehicle signal system, or if it is determined that the vehicle signal system does not receive the second data sent by the vehicle control unit, The second error count is updated according to the second preset accumulated value when the second data is sent;
  • Step 12 if it is determined that no communication error occurs when the vehicle control unit sends the second data to the vehicle signal system, or if it is determined that the vehicle signal system receives the second data sent by the vehicle control unit, then the second error count is updated according to the second preset cumulative decrement value;
  • Step 13 If the updated second error count is greater than or equal to the second preset value, it is determined that a communication abnormality occurs in the vehicle control unit.
  • the vehicle-mounted signal system When the vehicle-mounted signal system does not receive the second data sent by the vehicle control unit, it also considers that the data is erroneous, and updates the second error count according to the second preset accumulated value.
  • the second preset accumulated value and the initial value of the second error count can be freely set according to actual needs, and the present invention does not make any specific limitation on this.
  • the second error count is set to 0, the second preset cumulative value is set to 1, and when it is determined that a communication error occurs when the vehicle control unit sends the second data to the on-board signal system, or when it is determined that the on-board signal system does not receive the second data sent by the vehicle control unit, the second error count is updated by adding the second preset cumulative value.
  • the second error count is updated according to the second preset cumulative decrement value.
  • the second preset cumulative reduction value can be freely set according to actual needs, and the present invention does not make any specific limitation on this.
  • the second preset cumulative decrement value is set to 1, when it is determined that the above communication error does not occur when the vehicle control unit sends the second data to the vehicle signal system, or When it is determined that the vehicle-mounted signal system receives the second data sent by the vehicle control unit, the second error count is updated after subtracting the second preset cumulative decrement value from the second error count.
  • the updated second error count is greater than or equal to a second preset value (for example, 3), it is determined that the second data sent by the vehicle control unit within a continuous preset period are invalid, and it is considered that a communication abnormality has occurred in the vehicle control unit. It is determined that the vehicle control unit considers that the emergency braking command sent by the on-board signal system is valid, and outputs the emergency braking command to the vehicle control unit.
  • a second preset value for example, 3
  • the second data may specifically include the vehicle control unit life signal, the vehicle emergency braking status, the vehicle integrity status, the door closing and locking status, the door bypass switch or button status, the cab activation status, the vehicle holding brake status, the vehicle traction cut-off status, the steering handle status, the traction/brake handle status, the door control mode selection switch status, the door opening button status and the closing button status.
  • the train operation control method provided by the present invention adopts the RSSP-I protocol to realize safe communication on the basis of the TRDP protocol, and ensures driving safety when the communication of the vehicle control unit is abnormal.
  • the safety integrity levels of the on-board signal system and the vehicle control unit are both SIL4.
  • a periodic communication method is adopted between the vehicle signal system and the vehicle control unit, and a redundant network design is adopted.
  • the communication mode between the vehicle-mounted signal system and the vehicle control unit is a periodic communication mode, and the communication period can be freely set according to actual conditions.
  • the communication period is set to be less than or equal to 100 ms.
  • the safety integrity level of the on-board signal system is SIL4.
  • the safety integrity level of the vehicle control unit is SIL4.
  • the on-board signal system and vehicle control unit adopt a redundant network design.
  • the train operation control method provided by the present invention, the on-board signal system and the vehicle control unit are developed and designed according to SIL4 level products to improve the on-board signal system and vehicle control
  • the probability of the unit executing safety communications (such as emergency braking) is increased to ensure driving safety.
  • the on-board signal system and the vehicle control unit adopt a redundant network design to improve the availability of the system, solve the defects of the on-board signal system and the vehicle control unit using a hard-wired interface, and improve the flexibility and convenience of the on-board signal system and vehicle interface, greatly saving equipment and labor costs.
  • the train operation control system provided by the present invention is described below.
  • the train operation control system described below and the train operation control method described above can be referenced to each other.
  • FIG5 is a schematic diagram of the structure of a train operation control system provided by the present invention, as shown in FIG5 , comprising:
  • the judging module 510 is used to judge whether the first data sent by the vehicle signal system within a continuous preset period are all invalid;
  • the control module 511 is used to determine that if yes, a communication abnormality occurs in the vehicle-mounted signal system, and send an emergency braking command to the train braking control unit through the vehicle control unit;
  • the on-board signal system and the vehicle control unit communicate with each other based on the train real-time data protocol and through the train Ethernet;
  • the emergency braking command is sent by the vehicle signal system to the vehicle control unit when the communication abnormality occurs in the vehicle control unit.
  • the train operation control system provided by the present invention in order to solve the defect of using a hard-wire interface between the on-board signal system and the vehicle control unit, adopts train Ethernet to realize data exchange between the on-board signal system and the vehicle control unit based on the train real-time data protocol, thereby ensuring that the train control requirements are met when communication abnormalities occur during the data exchange process.
  • FIG6 is a schematic diagram of the physical structure of an electronic device provided by the present invention.
  • the electronic device may include: a processor 610, a communication interface 611, a memory 612 and a bus 613, wherein the processor 610, the communication interface 611 and the memory 612 communicate with each other through the bus 613.
  • the processor 610 may call the logic instructions in the memory 612 to Execute the following method:
  • the on-board signal system and the vehicle control unit communicate based on the train real-time data protocol and through the train Ethernet;
  • the emergency brake command is sent to the vehicle control unit by the on-board signal system when a communication abnormality occurs in the vehicle control unit.
  • the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.
  • the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art.
  • the computer software product is stored in a storage medium, including several instructions to enable a computer power screen (which can be a personal computer, server, or network power screen, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.
  • the present invention discloses a computer program product, the computer program product comprising a computer program stored on a non-transitory computer-readable storage medium, the computer program comprising program instructions, and when the program instructions are executed by a computer, the computer can execute the train operation control method provided by the above-mentioned method embodiments, for example, comprising:
  • the on-board signal system and the vehicle control unit communicate based on the train real-time data protocol and through the train Ethernet;
  • the emergency brake command is sent to the vehicle control unit by the on-board signal system when a communication abnormality occurs in the vehicle control unit.
  • the present invention further provides a non-transitory computer-readable storage medium having a computer program stored thereon, which is implemented when the computer program is executed by a processor to execute the train operation control method provided in the above embodiments, for example, including:
  • the on-board signal system and the vehicle control unit communicate based on the train real-time data protocol and through the train Ethernet;
  • the emergency brake command is sent to the vehicle control unit by the on-board signal system when a communication abnormality occurs in the vehicle control unit.
  • the system embodiment described above is merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art may understand and implement it without creative effort.
  • each implementation method can be implemented by means of software plus a necessary general hardware platform, or of course by hardware.
  • the above technical solution in essence or in other words, the part that contributes to the prior art, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, a disk, an optical disk, etc., and includes a number of instructions for enabling a computer power screen (which can be a personal computer, Server, or network power screen, etc.) executes the methods described in various embodiments or certain parts of the embodiments.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Sont fournis dans la présente invention un procédé et un système de commande d'opération de train. Le procédé consiste : à déterminer si oui ou non des premières données qui sont envoyées par un système de signal monté sur véhicule dans un nombre prédéfini de périodes continues sont invalides ; et si tel est le cas, à déterminer qu'une anomalie de communication se produit dans le système de signal monté sur véhicule, et à envoyer une instruction de freinage d'urgence à une unité de commande de freinage de train au moyen d'une unité de commande de véhicule, une communication entre le système de signal monté sur véhicule et l'unité de commande de véhicule étant réalisée sur la base d'un protocole de données de train en temps réel et au moyen d'un Ethernet de train, et l'instruction de freinage d'urgence étant envoyée à l'unité de commande de véhicule par le système de signal monté sur véhicule lorsque l'anomalie de communication se produit dans le système de signal monté sur véhicule. Le système exécute le procédé. Au moyen de la présente invention, le défaut selon lequel une interface de fil dur est utilisée entre un système de signal monté sur véhicule et une unité de commande de véhicule est résolu, et un échange de données entre le système de signal monté sur véhicule et l'unité de commande de véhicule est réalisé sur la base d'un protocole de données de train en temps réel et au moyen d'un Ethernet de train, ce qui permet de garantir qu'une exigence de commande de train pour un train est satisfaite lorsqu'une anomalie de communication se produit dans un processus d'échange de données.
PCT/CN2023/125028 2022-10-31 2023-10-17 Procédé et système de commande d'opération de train WO2024093668A1 (fr)

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CN202211352260.6 2022-10-31
CN202211352260.6A CN115782963A (zh) 2022-10-31 2022-10-31 列车运行控制方法及系统

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Publication number Priority date Publication date Assignee Title
CN115782963A (zh) * 2022-10-31 2023-03-14 中国铁路通信信号股份有限公司 列车运行控制方法及系统

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CN112874582A (zh) * 2019-11-29 2021-06-01 比亚迪股份有限公司 列车及其的控制方法、控制装置和车载控制设备
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CN114604300A (zh) * 2022-03-16 2022-06-10 天津津航计算技术研究所 一种基于5g技术的fao远程驾驶系统
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Publication number Priority date Publication date Assignee Title
US20100029209A1 (en) * 2008-08-04 2010-02-04 Wolfgang Daum System, method, and computer software code for providing an auxiliary communication path when a primary communication path is unavailable
CN112874582A (zh) * 2019-11-29 2021-06-01 比亚迪股份有限公司 列车及其的控制方法、控制装置和车载控制设备
CN113839988A (zh) * 2021-08-24 2021-12-24 成都市新筑路桥机械股份有限公司 一种列车多网融合网络控制系统和控制方法
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