CN111661109A - Network converged train control and management system, communication method and communication device - Google Patents
Network converged train control and management system, communication method and communication device Download PDFInfo
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- CN111661109A CN111661109A CN202010546810.2A CN202010546810A CN111661109A CN 111661109 A CN111661109 A CN 111661109A CN 202010546810 A CN202010546810 A CN 202010546810A CN 111661109 A CN111661109 A CN 111661109A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
- B61L15/0018—Communication with or on the vehicle or vehicle train
- B61L15/0036—Conductor-based, e.g. using CAN-Bus, train-line or optical fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or vehicle train for signalling purposes ; On-board control or communication systems
Abstract
The application relates to the technical field of rail transit trains, and discloses a network-integrated train control and management system, which comprises an Ethernet formation network, wherein each device of an automatic train control system is accessed into the Ethernet formation network through an Ethernet interface, and is directly communicated with the Ethernet formation network; each brake control unit is accessed into the Ethernet network through the Ethernet interface and directly communicated with the Ethernet network, and the brake control units are directly communicated with each other through the Ethernet. The method optimizes the layout of the vehicle-mounted network and interfaces among systems, reduces the complexity of the system, is favorable for realizing integrated train control logic integration and optimal design from the perspective of the whole system of the rail train, is favorable for improving the performance and reliability of the train, and is also favorable for managing, controlling and maintaining the train based on a unified platform. The application also discloses a communication method and a communication device of the network converged train control and management system.
Description
Technical Field
The present application relates to the field of rail transit train technologies, and in particular, to a network converged train control and management system, a communication method, and a communication device.
Background
A conventional Network System for a rail Train is generally composed of a plurality of Network systems serving different purposes, each System in the rail Train generally has its own independent Network, such as a signal Network serving a Train Control function, a Train Control and Management System (Train Control and Management System, TCMS for short) serving the Train Control and Management, a Controller Area Network (Controller Area Network, CAN for short) serving a vehicle brake System, an ethernet serving a Passenger Information System (Passenger Information System, PIS for short), a CAN serving a door Control System, and the like. With the continuous development and maturity of the ethernet technology, the ethernet is rapidly popularized and developed in the rail train field by virtue of the advantages of openness, high bandwidth and the like.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art: the convergence between the rail train control network and the information service network is only the sharing of physical media, such as the sharing of devices or cables, and the internal information of the rail train control network and the information service network is still independent from each other, so a scheme for making the rail train network more converged needs to be provided.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. The foregoing summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended to be a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a network converged train control and management system, a communication method and a communication device, so as to solve the technical problems to a certain extent.
In some embodiments, the network converged train control and management system comprises an ethernet formation network, each device of the train automatic control system is accessed to the ethernet formation network through an ethernet interface, and each device of the train automatic control system is directly communicated with the ethernet formation network; each brake control unit is accessed into the Ethernet network through the Ethernet interface and directly communicated with the Ethernet network, and the brake control units are directly communicated with each other through the Ethernet.
Optionally, each device of the train automatic control system includes: the device for communication, the device for input and output, the device for automatic train monitoring, the device for automatic train protection and the device for automatic train operation are communicated through the Ethernet.
Optionally, the train control and management system with network convergence further includes: the train automatic control system establishes communication connection with the brake control unit through an Ethernet interface and directly communicates with the brake control unit; the train automatic control system establishes communication connection with the traction control unit through an Ethernet interface and directly communicates with the traction control unit; and the brake control unit and the traction control unit directly transmit train brake or traction data, train load data and instruction feedback data to the automatic train control system.
Optionally, the brake control unit and the traction control unit establish a communication connection through an ethernet interface to directly perform communication; the brake control unit transmits the application and release data of the brake control and/or the fault and available state data of the brake control unit to the traction control unit; and the traction control unit transmits the actual value of the electric braking force and the available state data of the electric braking to the brake control unit.
Optionally, the train control and management system with network convergence further includes: and the common display device is configured to display the fused data through different functional area interfaces.
In some embodiments, a communication method for the aforementioned train control and management system, comprises: each device, the traction control unit and the brake control unit of the automatic train control system directly transmit message information to the central processing unit through the Ethernet, and the central processing unit controls the traction control unit and the brake control unit through the message information; the safety information is transmitted through a relay interface hard wire signal; other hard-line signals except the safety information are uniformly collected by the train control and management system and transmitted through the Ethernet interface; the message information is other information, and the safety information is SIL4 information related to train automatic protection.
Optionally, the communication method for the train control and management system further includes: the train automatic control system receives train braking or traction data, train load data and command feedback data.
Optionally, the communication method for the train control and management system further includes: the traction control unit receives application and release data of brake control and/or fault and available state data of the brake control unit; the brake control unit receives the actual value of the electric brake force and the available state data of the electric brake.
Optionally, the communication method for the train control and management system further includes: receiving operation data sent by an automatic train control system and a central processing unit; according to the train operation mode, selecting data which are marked with the same information in the operation data, and merging the data which are marked with different information in the operation data; and obtaining fused data after selection and combination.
In some embodiments, a communication device for a network converged train control and management system comprises a processor and a memory storing program instructions, the processor being configured to execute the aforementioned communication method for a network converged train control and management system upon execution of the program instructions.
The network converged train control and management system, the communication method and the communication device provided by the embodiment of the disclosure can realize the following technical effects:
the vehicle-mounted network layout and interfaces among the systems are optimized, the system complexity is reduced, the integrated train control logic integration and optimization design from the perspective of the whole train system are facilitated, the performance and the reliability of the train are improved, and the management, the control and the maintenance of the train based on a unified platform are facilitated;
based on integrated vehicle design, the safe input and output can be uniformly managed by the TCMS, on the premise of ensuring basic functions and performance, the number of train hard line circuits and input and output acquisition equipment is reduced, and the system reliability is improved;
the information exchange strategy of each system of the vehicle is upgraded, data sharing is realized by means of the Ethernet channel, the master-slave relation between system equipment is cancelled, information is transmitted and received at the same time, the time of communication between the master and the slave is saved, and the transmission efficiency is improved;
the train driving assisting device has the advantages that the simple and visual operation mode and rich information are provided for drivers and passengers to assist the drivers and passengers in driving trains in a more reasonable display, operation mode and layout.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic structural diagram of a network converged train control and management system provided by an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of another network converged train control and management system architecture provided by an embodiment of the present disclosure;
FIG. 3 is a schematic diagram illustrating the connection relationship between ATO systems in the train control and management system provided in the embodiment of the present disclosure;
FIG. 4 is a schematic diagram of another network converged train control and management system architecture provided by an embodiment of the present disclosure;
FIG. 5 is a communication relationship diagram of a network converged train control and management system provided by an embodiment of the present disclosure;
fig. 6 is a schematic diagram of a display device after operation data fusion provided by the embodiment of the disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Introducing concepts related in the embodiments of the present disclosure, Ethernet constellation (ECN for short); a Brake Control Unit (BCU for short); a Traction Control Unit (TCU); a Communication Management Unit (CMU); automatic Train Control (ATC for short); safety integrity Level 4(safety integrity Level 4, SIL4 for short); automatic Train Supervision (ATS); automatic Train protection (ATP for short); automatic train Operation (ATO for short); an input/output unit (input output Memory, IOM for short); a Central Control Unit (CCU); a Remote input/output unit (Remote input output Memory, RIOM for short).
Fig. 1 is a schematic structural diagram of a network converged train control and management system provided in an embodiment of the present disclosure. As shown in fig. 1, an embodiment of the present disclosure provides a network converged train control and management system, which includes an ethernet formation network, where each device 11 of an automatic train control system is connected to the ethernet formation network through an ethernet interface, and each device 11 of the automatic train control system is directly in communication with the ethernet formation network; each brake control unit is accessed into the Ethernet network through the Ethernet interface and directly communicated with the Ethernet network, and the brake control units are directly communicated with each other through the Ethernet. Each device 11 of the automatic train control system is accessed to the ECN through an Ethernet interface, and each device 11 of the automatic train control system is directly communicated through the Ethernet; the internal network of the train automatic control system is cancelled, the safe and unsafe transmission protocols in the train automatic control system are supported, and networking equipment in the train control equipment is reduced. All the brake control units are accessed to the ECN through Ethernet interfaces, the BCUs are communicated with the ECN directly through the Ethernet, and the BCUs are communicated with each other through the Ethernet; the BCU is an independent valve and can directly communicate with the TCMS. Therefore, the integrated design concept is adopted, the train control equipment is taken as a node and brought into the rail train network for parallel management, the communication process between the master equipment and the slave equipment is reduced, and the information is transmitted and received more timely. The system optimizes the layout of the vehicle-mounted network and interfaces among the systems, reduces the complexity of the system, is favorable for realizing integrated train control logic integration and optimal design from the perspective of the whole system of the train, is favorable for improving the performance and reliability of the train, and is also favorable for managing, controlling and maintaining the train based on a unified platform. Meanwhile, after the ATC is accessed into the ECN, the debugging of partial functions of the ATC can be carried out in a factory debugging stage, so that the testing time of a main line is shortened, and the debugging of a new vehicle for additionally purchasing the vehicle after the system is put into operation and the debugging work after the train is overhauled are facilitated.
The fused network meets the following requirements: firstly, the requirements of IEC61375 standard on a train communication network are met; and secondly, transparent transmission of UDP, TCP and FTP is supported, equipment which conforms to the IEEE802.x relevant standard and does not conform to the IEC61375 standard can also be normally accessed. The access requirements of different system equipment of different suppliers are met, and meanwhile, the safety protocols of different systems for realizing the required functions are supported; and thirdly, two independent industrial-level networks are provided and are mutually redundant. When one channel fails, the other channel can completely provide all functions which can be realized by the original channel.
In some embodiments, the automatic train control system comprises: the device for communication, the device for input and output, the device for automatic train monitoring, the device for automatic train protection and the device for automatic train operation are communicated through the Ethernet. The devices for communication may be respective devices including CMU; the devices for input and output may be devices including an IOM; the equipment for automatically monitoring the train can be various equipment including an ATS; the equipment for automatic train protection can be various equipment including ATP; the equipment for performing the automatic operation of the train may be various equipments including an ATO. Fig. 2 is a schematic structural diagram of another network-converged train control and management system provided in the embodiment of the present disclosure. As shown in fig. 2, each device 11 of the train automatic control system may include: CMU, ATS, ATO, ATP and IOM, wherein the CMU, ATS, ATO, ATP and IOM are connected to ECN by means of Ethernet connection.
Fig. 3 is a schematic diagram of a connection relationship of an ATO system in the train control and management system according to the embodiment of the present disclosure. As shown in fig. 3, the ATO function is integrated into the vehicle system, hard-wired signals for the ATO function such as direction, traction, and braking are removed, the current loop is removed, and the ATO is connected to the ECN through the ethernet interface. The ATO cancels the hard-line design, and the information is transmitted through the ethernet.
Fig. 4 is a schematic structural diagram of another network-converged train control and management system provided in the embodiment of the present disclosure. As shown in fig. 4, in some embodiments, the network converged train control and management system further includes: the automatic train control ATC system and the brake control unit BCU establish communication connection through an Ethernet interface and directly communicate with the brake control unit BCU; the automatic train control ATC system establishes communication connection with the traction control unit TCU through an Ethernet interface and directly communicates with the traction control unit TCU; and the brake control unit BCU and the traction control unit TCU directly transmit train brake or traction data, train load data and instruction feedback data to the automatic train control ATC system. As shown in fig. 4, the arrows in the figure represent the transmission direction of data, and the ATC receives data sent by the TCU and the BCU through the ethernet, and sends control data to the TCU and the BCU to control the TCU and the BCU. The fusion of communication data enables the TCU and the BCU to feed back relevant information to the ATC in real time, and the control process of the ATC can be further optimized. The master-slave relation between the CCU, the TCU and the BCU is cancelled, information is received and sent at the same time, the time of communication between the master and the slave is saved, the information transmission efficiency is improved, partial operation data do not need to be subjected to logic operation or forwarding through the CCU, direct communication between different devices is realized, the data interaction is more convenient, rapid and complete, the vehicle control becomes a closed loop, and the control effect is more accurate.
As shown in fig. 4, in some embodiments, the brake control unit BCU and the traction control unit TCU establish a communication connection through an ethernet interface, and directly communicate with each other; the brake control unit BCU transmits the application and release data of brake control and/or the fault and available state data of the brake control unit to the traction control unit TCU; the traction control unit TCU transmits the actual value of the electric brake force and the electric brake available state data to the brake control unit BCU. Therefore, under the traction working condition, on one hand, the TCU receives the application and release data of brake control, and can timely judge whether to block traction or not by combining the application and release states of the brake of the BCU, so that the condition that the equipment is damaged due to the fact that a vehicle is braked due to traction brake collision is avoided; on the other hand, the TCU receives the fault and available state data of the BCU, and can limit the highest running speed of the train and guarantee the running safety by combining the fault state and the available state of the BCU. Under the braking working condition, the BCU receives the actual value and the available state data of the electric braking force, the available state and the actual value of the electric braking force of the TCU can be combined, the braking force is reasonably distributed, and the seamless electric air-brake cooperation enables the train braking to be more stable.
In some embodiments, the network converged train control and management system further comprises: and the common display device is configured to display the fused data through different functional area interfaces.
The embodiment of the present disclosure provides a communication method of the network converged train control and management system, including: each device, the traction control unit and the brake control unit of the automatic train control system directly transmit message information to the central processing unit through the Ethernet, and the central processing unit controls the traction control unit and the brake control unit through the message information; the safety information is transmitted through a relay interface hard wire signal; other hard-line signals except the safety information are uniformly collected by the train control and management system and transmitted through the Ethernet interface; the message information is other information, and the safety information is SIL4 information related to train automatic protection. Therefore, the TCMS is used for unified management, namely, the TCMS is used for collecting data by network input and output equipment and interacting with train control equipment, traction, braking and other system control equipment through the real-time Ethernet, on the premise of ensuring basic functions and performances, the number of train hard line circuits and the number of input and output collecting equipment are reduced, and the reliability of the system is improved.
Fig. 5 is a schematic communication relationship diagram of a network converged train control and management system according to an embodiment of the present disclosure. As shown in fig. 5, the thick lines in the figure represent an ethernet connection method, the thin lines represent a hard-line connection method, and the TCMS apparatus 51 includes: the system comprises a CCU and an RIOM, wherein after non-safety hard-line information is collected by the RIOM, the information is processed by the CCU and is transmitted through an Ethernet interface. Thus, the hard-line circuits which are repeatedly arranged are reduced, and the hard-line circuits in the TCMS are merged. Based on the integrated vehicle design, safe input and output are not related, a relay interface is not adopted any more, the TCMS manages uniformly through the Ethernet, redundant wiring is reduced, and the uniformity and the reliability of information are improved. In addition, non-safety hard wire signals and other information are collected by the TCMS, so that the collection equipment and the collection standard are unified, and the information unification of each vehicle-mounted equipment is facilitated. The security information is also transmitted by the TCMS, can be used as information backup, does not participate in control, and can reserve possibilities for future functional extensions.
In some embodiments, the communication method for the network converged train control and management system further includes: the train automatic control system receives train braking or traction data, train load data and command feedback data. Therefore, on one hand, the ATC system establishes Ethernet connection with the BCU and the TCU respectively to acquire train load information, traction, braking capacity and instruction feedback information, and can shorten the period of ATC closed-loop control, thereby reducing the possibility of over-traction, over-braking, under-traction or under-braking, and improving the control level of automatic control of the train, particularly the impulse suppression level and the fixed-point stopping precision. On the other hand, when the ATC system is controlled or before the control, the real-time feedback of the state information of the vehicle control system can be obtained, closed-loop control is formed, control lag caused by only taking the speed value as reference in the prior art is reduced, the ATC control is more accurate, and the ATC control algorithm input is more real-time and effective. The ATC system can adjust the control strategy in advance or in real time by utilizing the information transmitted by the TCU and the BCU, can reduce factors influencing train control, and improves the control precision of time delay feedback, such as the control precision of actual speed or acceleration. In addition, the ATC system can correspondingly adjust the driving control curve according to the vehicle control requirement by combining the working states fed back by the TCU and the BCU. The ATC system calculates a smooth control curve fitting reality by acquiring the applying condition and the applying trend of electric brake and air brake in each period in the parking process of the train and combining the real-time speed and position of the rail train with the cooperation of the TCU and the BCU.
In some embodiments, the communication method for the network converged train control and management system further includes: the traction control unit receives application and release data of brake control and/or fault and available state data of the brake control unit; the brake control unit receives the actual value of the electric brake force and the available state data of the electric brake.
In some embodiments, the communication method for the network converged train control and management system further includes: receiving operation data sent by an automatic train control system and a central processing unit; according to the train operation mode, selecting data which are marked with the same information in the operation data, and merging the data which are marked with different information in the operation data; and obtaining fused data after selection and combination. The data identifying the same information in the operation data, for example, the time, speed, train number or rank, is selected, and the same information is displayed by selecting the information of ATC or CCU. Data identifying different information in the ATC and the CCU is retained. Therefore, the display data of the TCMS are fused, redundant data are reduced, and the fused data are displayed through different functional area interfaces of the display equipment. Fig. 6 is a schematic diagram of a display device after operation data fusion provided by the embodiment of the disclosure. As shown in fig. 6, the communication method of the train control and management system for network convergence is used to fuse the display data of the HMI and the DMI to obtain a device with fused display data. Receiving operation data sent by an ATC and a CCU; selecting data which identifies the same information in the running data, and merging the data which identifies different information in the running data; the running data after selection and combination is displayed through a fusion display screen, the HMI and the DMI are fused into a display device, the TCMS display screen is adopted as hardware, a rail vehicle provides power, rail train running data are obtained from the ATC and the CCU, and display interfaces which are used for identifying different information running data in the ATC and the CCU are rearranged. Therefore, one display device is divided into different display areas, so that the arrangement of the driver platform can be optimized, and the functions of the display device can be exerted to the maximum extent.
In some embodiments, selecting data in the operational data that identifies the same information further comprises: selecting running data of an automatic train control system in an automatic driving mode; and in other train operation modes, selecting the operation data of the central processing unit.
The embodiment of the disclosure provides a communication device for a network converged train control and management system, which comprises a processor and a memory stored with program instructions, wherein the processor is configured to execute the communication method for the network converged train control and management system when executing the program instructions. The vehicle-mounted network layout and interfaces among the systems are optimized, the system complexity is reduced, the integrated train control logic integration and optimization design from the perspective of the whole train system are facilitated, the performance and the reliability of the train are improved, and the management, the control and the maintenance of the train based on a unified platform are facilitated; based on integrated vehicle design, the safe input and output can be uniformly managed by the TCMS, on the premise of ensuring basic functions and performance, the number of train hard line circuits and input and output acquisition equipment is reduced, and the system reliability is improved; the information exchange strategy of each system of the vehicle is upgraded, data sharing is realized by means of the Ethernet channel, the master-slave relation between system equipment is cancelled, information is transmitted and received at the same time, the time of communication between the master and the slave is saved, and the transmission efficiency is improved; the train driving assisting device has the advantages that the simple and visual operation mode and rich information are provided for drivers and passengers to assist the drivers and passengers in driving trains in a more reasonable display, operation mode and layout.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, so that those skilled in the art may apply the above-described modifications and variations to the present invention without departing from the spirit of the present invention.
Claims (10)
1. A network converged train control and management system comprises an Ethernet formation network and is characterized in that:
each device of the automatic train control system is accessed into the Ethernet formation network through an Ethernet interface, and each device of the automatic train control system is directly communicated with the Ethernet formation network;
each brake control unit is accessed into the Ethernet formation network through an Ethernet interface and directly communicated with the Ethernet formation network, and the brake control units are directly communicated through the Ethernet.
2. The train control and management system according to claim 1, wherein each device of the train automatic control system comprises:
the device for communication, the device for input and output, the device for train automatic monitoring, the device for train automatic protection and the device for train automatic operation are communicated through Ethernet.
3. The train control and management system according to claim 1 or 2, further comprising:
the train automatic control system establishes communication connection with the brake control unit through an Ethernet interface and directly communicates with the brake control unit;
the train automatic control system establishes communication connection with the traction control unit through an Ethernet interface and directly communicates with the traction control unit;
and the braking control unit and the traction control unit directly transmit train braking or traction data, train load data and instruction feedback data to the automatic train control system.
4. The train control and management system of claim 3,
the brake control unit and the traction control unit are in communication connection through an Ethernet interface and directly communicate;
the brake control unit transmits application and release data of brake control and/or fault and available state data of the brake control unit to the traction control unit;
and the traction control unit transmits the actual value of the electric braking force and the available state data of the electric braking to the brake control unit.
5. The train control and management system of claim 4, further comprising:
and the common display device is configured to display the fused data through different functional area interfaces.
6. A communication method for a train control and management system according to any of claims 1 to 5, characterized in that it comprises:
the method comprises the steps that message information is directly transmitted to a central processing unit through Ethernet by each device, a traction control unit and a brake control unit of the automatic train control system, and the central processing unit controls the traction control unit and the brake control unit through the message information;
the safety information is transmitted through a relay interface hard wire signal;
other hard-line signals except the safety information are uniformly collected by the train control and management system and transmitted through the Ethernet interface;
the message information is other information, and the safety information includes SIL4 information related to automatic train protection.
7. The communication method according to claim 6, further comprising:
the automatic train control system receives train braking or traction data, train load data and instruction feedback data.
8. The communication method according to claim 7, further comprising:
the traction control unit receives application and mitigation data of brake control and/or fault and available state data of the brake control unit;
the brake control unit receives the actual value of the electric brake force and the available state data of the electric brake.
9. The communication method according to any one of claims 6 to 8, further comprising:
receiving operation data sent by an automatic train control system and a central processing unit;
according to a train operation mode, selecting data which are marked with the same information in the operation data, and merging the data which are marked with different information in the operation data;
and obtaining fused data after selection and combination.
10. A communication device of a network converged train control and management system, comprising a processor and a memory storing program instructions, characterised in that the processor is configured to perform the communication method for a network converged train control and management system according to any one of claims 6 to 9 when executing the program instructions.
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| CN113859308A (en) * | 2021-09-23 | 2021-12-31 | 浙江众合科技股份有限公司 | Framework and information fusion system of vehicle-mounted ATO (automatic transfer optical) module and BCU (binary coded decimal) controller |
| CN114670902A (en) * | 2022-04-28 | 2022-06-28 | 中车青岛四方车辆研究所有限公司 | Remote reset and emergency brake remote release processing method and system |
| CN114872756A (en) * | 2022-04-28 | 2022-08-09 | 交控科技股份有限公司 | Fusion control system and method applied to rail vehicle |
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