WO2019137395A1 - Comprehensive bearing system for track transport - Google Patents

Comprehensive bearing system for track transport Download PDF

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Publication number
WO2019137395A1
WO2019137395A1 PCT/CN2019/070978 CN2019070978W WO2019137395A1 WO 2019137395 A1 WO2019137395 A1 WO 2019137395A1 CN 2019070978 W CN2019070978 W CN 2019070978W WO 2019137395 A1 WO2019137395 A1 WO 2019137395A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
switch
communication
integrated
trackside
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PCT/CN2019/070978
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French (fr)
Chinese (zh)
Inventor
江奕辰
王发平
邵明乾
李波波
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比亚迪股份有限公司
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Publication of WO2019137395A1 publication Critical patent/WO2019137395A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00Network arrangements or protocols for supporting network services or applications
    • H04L67/01Protocols
    • H04L67/12Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/42Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for mass transport vehicles, e.g. buses, trains or aircraft
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30Services specially adapted for particular environments, situations or purposes
    • H04W4/40Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H04W4/44Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a rail transit integrated bearer system.
  • rail transit generally uses WLAN, LTE-M, and GSM to carry vehicle-to-vehicle communication and signal interaction, and to achieve signal and communication isolation, it is usually carried by different networks for different services.
  • the integrated rail transit system generally consists of at least three networks for realizing the comprehensive bearing of the train and the passenger Internet service.
  • the above-mentioned integrated bearer system setting mode has a complicated network structure, a large number of devices, and high cost.
  • the present disclosure aims to solve at least one of the technical problems in the related art to some extent.
  • the present disclosure proposes an integrated rail transit system, which is based on an LTE-U network, and requires only two communication signal loops to realize integrated train carrying and passenger Internet access, not only the network is simple, but also the number of devices. Less, low cost, and strong anti-interference ability of the network, long transmission distance, and can carry the communication of the vehicle integrated system and the passenger Internet service when moving at high speed, which improves the reliability of communication.
  • the rail transit integrated carrying system proposed by the embodiment of the present disclosure comprises: a first signal subsystem and a second communication signal subsystem; the first signal subsystem is configured to implement an automatic control system for the trackside train through the LTE-U network Communication between the vehicle control devices; the second communication signal subsystem for communicating between the trackside passenger service system and the vehicle passenger service device, the communication between the vehicle wireless LAN and the Internet, and the trackside through the LTE-U network Communication between the train automatic control system and the vehicle control equipment.
  • the first signal subsystem includes: a track-side train automatic control system sequentially connected in communication, a first switch, a first base station, a first base station antenna, a first vehicle antenna, a first vehicle access unit, The first in-vehicle switch and the in-vehicle control device, wherein the working frequency band of the first base station antenna and the first vehicle antenna is a LET-U frequency band.
  • the trackside automatic control system includes an automatic train monitoring system, a regional controller, and a computer interlocking system, wherein the automatic train monitoring system, the regional controller, and the computer interlocking system are respectively associated with the first switch Communication connection.
  • the first signal subsystem further includes: a first photoelectric conversion device respectively connected to the first switch and the first base station.
  • the second communication signal subsystem includes: a second switch; a track-side train automatic control system, a trackside passenger service system, an Internet, and a second base station respectively connected to the second switch; respectively The second base station antenna, the second vehicle antenna, the second vehicle access unit, and the second vehicle-mounted switch; the vehicle-mounted control device and the vehicle-mounted passenger service device respectively connected to the second vehicle-mounted switch; And an in-vehicle wireless local area network device, wherein a working frequency band of the second base station antenna and the second vehicle antenna is a LET-U frequency band.
  • the second switch includes a communication access switch and at least one signal access switch;
  • the communication access switch is in communication connection with the trackside passenger service system
  • the at least one signal access switch is in communication with the trackside train automatic control system.
  • the trackside automatic control system comprises an automatic train monitoring system, a regional controller and a computer interlocking system;
  • the train automatic monitoring system, the area controller and the computer interlocking system are respectively connected in communication with a signal access switch.
  • the onboard passenger service device comprises a passenger information device, a closed circuit television monitoring device, a broadcast device, and an emergency call device;
  • the second communication signal subsystem further includes: a third in-vehicle switch;
  • the third in-vehicle switch is respectively connected to the second in-vehicle switch and the passenger information device, the closed-circuit television monitoring device, the broadcast device, and the emergency call device.
  • the in-vehicle control device, the in-vehicle passenger service device, and the second in-vehicle switch are simultaneously disposed in any cabinet of the train; the in-vehicle wireless local area network devices are respectively disposed in each of the trains.
  • the second communication signal subsystem further includes: a second photoelectric conversion device respectively connected to the second switch and the second base station.
  • the integrated bearer system further includes a firewall that is respectively connected to the first switch, the second switch, and the Internet.
  • the integrated bearer system further includes a backbone switch
  • the backbone switch is respectively connected to the first switch, the second switch, and the firewall.
  • the rail transit integrated bearer system of the embodiment of the present disclosure is based on the LTE-U network, and only needs two communication signal loops to realize integrated train carrying and passenger Internet access services, which is simple in network, small in number of devices, low in cost, and network.
  • the anti-interference ability is strong, the transmission distance is long, and the communication of the vehicle-ground integrated system and the passenger Internet access service can be carried at the time of high-speed movement, thereby improving the reliability of communication.
  • FIG. 1 is a schematic structural view of a rail transit integrated carrying system according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a rail transit integrated carrying system according to another embodiment of the present disclosure.
  • FIG. 3 is a schematic structural diagram of a second communication signal subsystem portion of an in-vehicle network system according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a rail transit integrated carrying system according to still another embodiment of the present disclosure.
  • FIG. 5 is a schematic structural diagram of a terrestrial network system according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a rail transit integrated carrying system according to still another embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a second communication signal subsystem portion of a terrestrial network system according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a first signal subsystem portion of a terrestrial network system according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of a first signal subsystem portion of an in-vehicle network system according to an embodiment of the present disclosure.
  • Embodiments of the present disclosure are directed to a rail transit integrated bearer system in the related art, which has a complicated network, a large number of devices, and a high cost, and proposes a rail transit integrated bearer system.
  • the rail transit integrated bearer system includes a first signal subsystem and a second communication signal subsystem, and the first signal subsystem is used for long-term evolution technology on Advanced in Unlicensed Spectrums (Long Term Evolution (LTE), that is, the LTE-U network realizes communication between the automatic control system of the trackside train and the vehicle control device, and the second communication signal subsystem is used to implement the trackside passenger service system and the vehicle passenger service through the LTE-U network. Communication between devices, communication between the wireless LAN and the Internet, and communication between the automatic control system of the trackside train and the vehicle control device.
  • the integrated bearer system is based on the LTE-U network, and only needs two communication signal loops to realize the integrated bearer and passenger Internet access service of the train.
  • the network is simple, the number of devices is small, the cost is low, and the network has strong anti-interference ability. The distance is long, and when the high-speed mobile can carry the communication of the vehicle integrated system and the passenger Internet service, the communication reliability is improved.
  • FIG. 1 is a schematic structural view of a rail transit integrated carrying system according to an embodiment of the present disclosure.
  • the rail transit integrated carrying system comprises: a first signal subsystem and a second communication signal subsystem.
  • the first signal subsystem is configured to implement communication between a Communication Based Train Control System (CBTC) and a Vehicle On-Board Controller (VOBC) through an LTE-U network;
  • CBTC Communication Based Train Control System
  • VOBC Vehicle On-Board Controller
  • a second communication signal subsystem for implementing communication between the trackside passenger service system and the vehicle passenger service device, the communication between the vehicle wireless local area network and the Internet, and the automatic control system between the trackside train and the vehicle control device through the LTE-U network Communication.
  • the LTE-U network has a high throughput capability. Therefore, in this embodiment, the LTE-U network is used as a service channel, and the functions of all communication services are realized by using the high throughput capability.
  • the first signal subsystem is only used to implement signal transmission between the CBTC and the VOBC through the LTE-U network, so that reliable transmission of the control signal of the train can be realized.
  • the second communication signal subsystem can realize communication between the trackside passenger service system and the vehicle passenger service device, communication between the vehicle wireless local area network and the Internet, and communication between the trackside train automatic control system and the vehicle control device through the LTE-U network. Therefore, the comprehensive bearing of the train and the passenger Internet service can be realized.
  • the first signal subsystem and the second communication signal subsystem can communicate between CBTC and VOBC through the LTE-U network, the redundancy of the train control signal is realized, and the reliability of the rail transit integrated bearer system is ensured. Sex.
  • the second communication signal subsystem can perform different time slot ratios or ratios of uplink and downlink throughputs for different services according to the requirements of different services carried, thereby ensuring the trackside passenger service system and the vehicle passengers.
  • the first signal subsystem includes: a track-side train automatic control system sequentially connected in communication, a first switch, a first base station, a first base station antenna, a first vehicle antenna, and a first vehicle access unit TAU1.
  • the first in-vehicle switch and the in-vehicle control device wherein the working frequency band of the first base station antenna and the first vehicle antenna is a LET-U frequency band.
  • a second communication signal subsystem comprising: a second switch; a track-side train automatic control system respectively connected to the second switch, a trackside passenger service system, the Internet and a second base station; and a second communication connection with the second base station in sequence a base station antenna, a second vehicle antenna, a second vehicle access unit TAU2, and a second vehicle-mounted switch; an in-vehicle control device, an in-vehicle passenger service device, and an in-vehicle wireless local area network device respectively connected to the second in-vehicle switch, wherein the second The working frequency band of the base station antenna and the second vehicle antenna is the LET-U frequency band.
  • the trackside passenger service system includes a Passenger Information System (PIS), a Closed Circuit TV (CCTV), a Broadcasting System (PA), and an emergency call system.
  • PIS Passenger Information System
  • CCTV Closed Circuit TV
  • PA Broadcasting System
  • the emergency call system may be any emergency call system such as a fire alarm system.
  • the vehicle passenger service device may include a passenger information device, a closed circuit television monitoring device, a broadcasting device, an emergency call device, and the like.
  • ATS Automatic Train Supervision
  • ZC Zone Comtroller
  • CI Computer Interlocking
  • the type of the first switch is a signal access switch.
  • the second communication signal subsystem includes both signal and communication transmissions, the second switch includes two types of switches: a signal access switch and a communication access switch.
  • ATS, ZC, and CI are respectively connected to the signal access switch, and the PIS, CCTV, PA, and emergency call system are respectively connected to the communication access switch.
  • ATS, ZC, and CI may be connected to the same signal access switch, or respectively connected to respective corresponding signal accesses. In the switch, this application does not limit this.
  • the signal access switches corresponding to the ATS, the ZC, and the CI may be the same or different, and the present application does not limit this.
  • the second switch includes a communication access switch and at least one signal access switch; the communication access switch is in communication with the trackside passenger service system; at least one signal access The switch is in communication with the automatic control system of the trackside train.
  • the automatic control system of the trackside train comprises an automatic train monitoring system, a regional controller and a computer interlocking system; the automatic train monitoring system, the regional controller and the computer interlocking system are respectively connected with a signal access switch. .
  • the vehicle control device may be one or more, and is not limited herein.
  • the vehicle control device in order to ensure reliable control of the train, two in-vehicle control devices can be installed in the train, thereby achieving redundant control of the train.
  • the rail transit integrated carrying system includes two VOBC1 and VOBC2 in-vehicle control devices as an example.
  • the trackside train automatic control system the first switch, the first base station, the first base station antenna, the first vehicle antenna, the first vehicle access unit TAU1, the first vehicle switch, and the vehicle control
  • the device is connected in communication, and the working frequency band of the first base station antenna and the first vehicle antenna is the LET-U frequency band, so that the signal transmission between the CBTC and the VOBC is realized through the LTE-U network. Since the first signal subsystem is only used to realize the signal transmission between the CBTC and the VOBC, the control signal of the train can be ensured not to be interfered by other signals, and the reliable transmission of the train control signal is realized.
  • the trackside automatic control system, the trackside passenger service system and the Internet pass through the second switch, the second base station, the second base station antenna, the second vehicle antenna, and the second vehicle access unit TAU2, respectively.
  • the second on-board switch is connected with the vehicle control device, the vehicle passenger service device and the vehicle wireless LAN device, thereby realizing the communication between the trackside train automatic control system and the vehicle passenger service device, the trackside passenger service system and the vehicle passenger service device.
  • Inter-communication and communication between the in-vehicle wireless local area network and the Internet thereby realizing the comprehensive carrying of the train and the passenger Internet service.
  • the vehicle control device transmits signals between the first vehicle access unit TAU1 and the second vehicle access unit TAU2 and the trackside train automatic control system, thereby realizing the redundancy of the train control signal and ensuring the rail transit.
  • the reliability of the integrated carrier system is the reliability of the integrated carrier system.
  • the first switch, the second switch, the first in-vehicle switch and the second in-vehicle switch are respectively disposed in the first signal subsystem and the second communication signal subsystem, and the virtual local area network is divided by the switch (Virtual Local Area) Network (referred to as VLAN), logically divides the service, so as to avoid signal interference between the two subsystems and the second communication signal subsystem, and achieve safe operation of all services.
  • VLAN Virtual Local Area Network
  • a first photoelectric conversion device may be disposed between the first switch and the first base station, so that the optical signal sent by the first switch is converted into an electrical signal, and then transmitted to the first base station.
  • the first signal subsystem further includes: a first photoelectric conversion device respectively connected to the first switch and the first base station.
  • the second communication signal subsystem further includes: a second photoelectric conversion device respectively connected to the second switch and the second base station.
  • the in-vehicle control device, the in-vehicle passenger service device, and the second in-vehicle switch can be simultaneously disposed in any cabinet of the train, thereby reducing the length of the communication line in the train and reducing the signal caused by the communication line. The loss improves the reliability of communication of each in-vehicle device.
  • the first vehicle antenna and the second vehicle antenna may be respectively disposed at both ends of the train.
  • the first in-vehicle access unit TAU1 and the second in-vehicle access unit TAU2 may also be respectively disposed at both ends of the train.
  • the in-vehicle wireless local area network devices can be respectively disposed in each of the trains, so that the passengers in each of the cars can be connected to the in-vehicle wireless local area network, thereby meeting the Internet access requirements of all passengers in the train.
  • the vehicle passenger service equipment includes passenger information equipment, closed circuit television monitoring equipment, broadcasting equipment, and emergency call equipment. Therefore, in order to achieve the isolation of the signals between the passenger service devices, in the embodiment of the present disclosure, the signals between the passenger service devices may be isolated by the switch. That is, as shown in FIG. 3, the second communication signal subsystem may further include: a third in-vehicle switch.
  • the third vehicle-mounted switch is respectively connected to the second vehicle-mounted switch and the passenger information device, the closed-circuit television monitoring device, the broadcast device, and the emergency call device.
  • the service data of the passenger information device, the closed-circuit television monitoring device, the broadcasting device, and the emergency call device are logically divided to ensure the safe operation of each service.
  • a firewall may also be included, and the firewall is respectively connected to the first switch, the second switch, and the Internet, so that the communication, the signal, and the Internet data all pass through the firewall, thereby Ensure the security of data in the integrated bearer system.
  • the gateway can be set to the firewall, and the firewall is used as a policy to isolate different service data.
  • a backbone switch and a backbone switch may be disposed between the first switch, the second switch, and the firewall. Connect to the first switch, the second switch, and the firewall respectively.
  • the service data of each system service data of the second communication signal subsystem such as the trackside CCTV, the PIS, the broadcast system, the emergency call system, the ATS, the CI, and the ZC
  • the service data of the subsystem such as the service data of the trackside ATS, CI, and ZC
  • the Internet signal is no longer passed through the second switch, but is directly connected to the backbone switch through the firewall.
  • the backbone switch can transmit the service data to the firewall.
  • the data is isolated and then transmitted back to the backbone switch.
  • the LTE-U network is used as the data channel and transmitted to the vehicle antenna through the base station antenna.
  • the service data received by the vehicle antenna is transmitted to the vehicle switch through the vehicle access unit, and then the vehicle switch separates the service data according to the service data type, and then delivers the service data to the corresponding vehicle device, such as the vehicle.
  • the vehicle switch separates the service data according to the service data type, and then delivers the service data to the corresponding vehicle device, such as the vehicle.
  • the transmission process of the uplink service data is the reverse process of the foregoing process, and details are not described herein again.
  • the integrated rail transit system provided by the embodiment of the present invention can be divided into two parts: a terrestrial network system and an in-vehicle network system, and the two parts communicate as a whole through the LTE-U network.
  • part of the structure of the terrestrial network system can be as shown in FIG. 5
  • part of the structure of the in-vehicle network system can be as shown in FIG. 3.
  • the structure and working principle of the rail transit integrated carrying system provided by the embodiment of the present disclosure are described in detail below with reference to FIG. 3, FIG. 4 and FIG.
  • the terrestrial network system includes a trackside passenger service system, a trackside train automatic control system, and the Internet.
  • the ZC, CI, ATS and other systems in the automatic control system of the track-side train can be connected to the backbone switch through the respective first switch and the corresponding second switch respectively (only part of the connection relationship is shown in FIG. 5).
  • the PIS, CCTV, passenger broadcasting system, and emergency call system in the trackside passenger service system can be connected to the backbone switch through the second switch, and the introduced Internet signal is only used for the onboard passengers to access the Internet and directly access the firewall. After all the above service data reaches the backbone switch, the data is transmitted to the firewall, and the gateway is set to the firewall.
  • the signals, communication, and Internet data are isolated from each other and then transmitted back to the backbone switch to reach the LTE core network through the backbone switch. Passing through the fiber-to-rail base station to the train via the wireless network.
  • the second in-vehicle access unit TAU2 is disposed at one end of the train
  • the first in-vehicle access unit TAU1 is disposed at the other end of the train
  • the in-vehicle wireless local area network device is respectively disposed in each of the trains.
  • the vehicle control device, the PIS, the CCTV, the broadcasting device, the emergency call device, and the second vehicle-mounted switch in the vehicle passenger service device are all disposed in the same cabinet, and the cabinet is disposed at one end of the train as an example.
  • the vehicle-mounted passenger service device is connected to the second vehicle-mounted switch through the third vehicle-mounted switch, and the vehicle-mounted wireless LAN device and the vehicle-mounted control device are directly connected to the second vehicle-mounted switch.
  • the vehicle part gateway is set on the vehicle access unit, and after the ground data is transmitted to the train, it is delivered to the corresponding system by the vehicle access unit.
  • the trackside train automatic control system relies on the LTE-U network to realize various vehicle control
  • the vehicle passenger service system utilizes the LTE-U network to realize the function of multicast and video return, each car compartment
  • the in-vehicle wireless LAN devices are respectively connected to the second in-vehicle switch, and the second in-vehicle switch performs data transmission and Power Over Ethernet (POE) power supply, and the Internet service is provided by the Internet.
  • POE Power Over Ethernet
  • the Internet service occupies the throughput of the LTE-U network
  • the LTE-U network has a high throughput capacity, so it can meet the Internet access requirements.
  • the first signal subsystem and the second communication signal subsystem may respectively include a firewall and a backbone switch.
  • the first signal subsystem may include a first firewall
  • the second communication signal subsystem may include a second firewall, where the first firewall is connected to the first switch, and the second firewall is respectively connected to the second The switch and the Internet connection, so that the communication, signal and Internet data all pass through the firewall, thereby ensuring the security of the data in the integrated bearer system.
  • the gateway can be set to the firewall, and the firewall is used as a policy to isolate different service data.
  • a first backbone switch may be disposed between the first switch and the first firewall
  • a second backbone switch may be disposed between the second switch and the second firewall, where the first backbone switch and the first backbone switch respectively A switch is connected to the first firewall, and the second backbone switch is connected to the second switch and the second firewall.
  • the service data of each system service data such as the trackside CCTV, the PIS, the broadcast system, the emergency call system, the trackside ATS, the CI, and the ZC are connected to the second backbone through the second switch.
  • the Internet signal is no longer passed through the second switch, but is directly connected to the second backbone switch through the second firewall.
  • the second backbone switch can transmit the service data to the second backbone switch.
  • the second firewall passes through the second firewall to perform data isolation and then returns to the second backbone switch, and then uses the LTE-U network as a data channel to transmit to the second vehicle antenna through the second base station antenna.
  • the service data received by the second vehicle-mounted antenna is transmitted to the second vehicle-mounted switch through the second in-vehicle access unit, and then the second in-vehicle switch separates the service data according to the service data type, and then delivers the service data to the vehicle data.
  • Corresponding in-vehicle devices such as in-vehicle wireless LAN devices, car passenger service devices, and the like.
  • the transmission process of the uplink service data is the reverse process of the foregoing process, and the process of transmitting the service data in the first signal subsystem is similar to the foregoing process, and details are not described herein again.
  • the rail transit integrated bearer system provided by the present disclosure will be further described below with reference to FIG. 3 and FIG. 6 to FIG. 9 after the integrated bearer system is divided into the ground system and the in-vehicle system.
  • the rail transit integrated bearer system provided by the embodiment of the present invention can be divided into two parts: a terrestrial network system and an in-vehicle network system, and the two parts communicate as a whole through the LTE-U network.
  • a part of the structure of the terrestrial network system may be as shown in FIG. 7 and FIG. 8.
  • FIG. 7 is a schematic structural diagram of a second communication signal subsystem part of the terrestrial network system
  • FIG. 8 is a first signal of the terrestrial network system.
  • a part of the structure of the in-vehicle network system can be as shown in FIG. 3 and FIG. 9.
  • FIG. 3 is a schematic structural diagram of a second communication signal subsystem portion of the in-vehicle network system
  • FIG. 9 is a first signal subsystem portion of the in-vehicle network system. Schematic.
  • the second communication signal subsystem part of the terrestrial network system includes a trackside passenger service system, a trackside train automatic control system, and the Internet.
  • the ZC, CI, ATS and other systems in the track-side train automatic control system can be connected to the second backbone switch through their respective corresponding signal access switches, PIS, CCTV, passenger broadcasting system, emergency call in the trackside passenger service system.
  • the system can be connected to the second backbone switch through the communication access switch, and the introduced Internet signal is only used for the onboard passengers to access the Internet, and directly accesses the second firewall.
  • the data is transmitted to the second firewall, and the gateway is set to the second firewall, and the second firewall is used as a policy to isolate the signal, the communication, and the Internet data, and then return to the second.
  • the backbone switch reaches the LTE core network through the second backbone switch, and is transmitted to the train through the optical network to the track-side base station, that is, the second base station.
  • the first signal subsystem portion of the terrestrial network system includes a trackside train automatic control system.
  • the ZC, CI, ATS and other systems in the track-side train automatic control system can be connected to the first backbone switch through the respective first switches, and all the above service data reaches the first backbone switch and then the data is transmitted to the first firewall.
  • the data is isolated and transmitted to the first backbone switch, and reaches the LTE core network through the first backbone switch, and is transmitted to the train through the optical network to the track-side base station, that is, the first base station.
  • the second in-vehicle access unit TAU2 is disposed at one end of the train
  • the first in-vehicle access unit TAU1 is disposed at the other end of the train
  • the in-vehicle wireless local area network device is respectively disposed on the train.
  • the vehicle control device, the PIS, the CCTV, the broadcasting device, the emergency call device, and the second vehicle-mounted switch in the vehicle passenger service device are all disposed in the same cabinet, and the cabinet is disposed at one end of the train as an example.
  • the vehicle-mounted passenger service device is connected to the second vehicle-mounted switch through the third vehicle-mounted switch, and the vehicle-mounted wireless LAN device and the vehicle-mounted control device are directly connected to the second vehicle-mounted switch.
  • the vehicle-mounted partial gateway is disposed on the first in-vehicle access unit and the second in-vehicle access unit. After the ground data is transmitted to the train, the first in-vehicle access unit and the second in-vehicle access unit are delivered to the corresponding system.
  • the trackside train automatic control system relies on the LTE-U network to realize various vehicle control
  • the vehicle passenger service system utilizes the LTE-U network to realize the function of multicast and video return, each car compartment
  • the in-vehicle wireless LAN devices are respectively connected to the second in-vehicle switch, and the second in-vehicle switch performs data transmission and Power Over Ethernet (POE) power supply, and the Internet service is provided by the Internet.
  • POE Power Over Ethernet
  • the Internet service occupies the throughput of the LTE-U network
  • the LTE-U network has a high throughput capacity, so it can meet the Internet access requirements.
  • the rail transit integrated carrying system of the embodiment of the invention can realize the comprehensive carrying of the train and the passenger online service. Because the frequency band of the LTE-U network based on the integrated bearer system is exempt from authorization, it can be used without authorization, with long transmission distance, strong anti-interference ability, high security, and high-speed mobile (up to 160kM/h) environment. The two-way mobile communication between the two, therefore, the integrated bearer system has strong anti-interference ability, long transmission distance, and can still carry the communication of the vehicle integrated system and the passenger online service when moving at high speed, thereby improving the reliability of communication.
  • the rail transit integrated bearer system provided by the embodiment of the invention is based on the LTE-U network, and only needs two communication signal loops to realize the comprehensive bearer of the train and the passenger online service, which is not only simple in network, small in number of devices, and low in cost, and
  • the network has strong anti-interference ability, long transmission distance, and can carry the communication of the vehicle integrated system and the passenger online service when moving at high speed, which improves the reliability of communication.
  • portions of the present disclosure can be implemented in hardware, software, firmware, or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution device.
  • a suitable instruction execution device For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
  • each functional unit in various embodiments of the present disclosure may be integrated into one first processing module, or each unit may exist physically separately, or two or more units may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules.
  • the integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
  • the above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like. While the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the disclosure The embodiments are subject to variations, modifications, substitutions and variations.

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Abstract

A comprehensive bearing system for track transport. The system comprises: a first signal subsystem and a second communication signal subsystem. The first signal subsystem is used for implementing the communication between a trackside automatic train control system and an onboard control device by means of an LTE-U network. The second communication signal subsystem is used for implementing, by means of the LTE-U network, communication between a trackside passenger service system and an on-board passenger service device, communication between an on-board wireless local area network and the Internet, and communication between the trackside automatic train control system and the on-board control device.

Description

轨道交通综合承载系统Rail transit integrated carrying system
相关申请的交叉引用Cross-reference to related applications
本公开要求比亚迪股份有限公司于2018年01月09日提交的、发明名称为“轨道交通综合承载系统”的、中国专利申请号“201810018860.6”的优先权。The present disclosure claims the priority of the Chinese patent application No. "201810018860.6", which was filed on January 9, 2018, by the BYD Co., Ltd., and whose invention is entitled "railway integrated carrying system".
技术领域Technical field
本公开涉及通信技术领域,尤其涉及一种轨道交通综合承载系统。The present disclosure relates to the field of communications technologies, and in particular, to a rail transit integrated bearer system.
背景技术Background technique
目前,轨道交通普遍应用WLAN、LTE-M及GSM等方式承载车地通信、信号交互,且为实现信号和通信的隔离,通常针对不同业务布置不同的网络进行承载。At present, rail transit generally uses WLAN, LTE-M, and GSM to carry vehicle-to-vehicle communication and signal interaction, and to achieve signal and communication isolation, it is usually carried by different networks for different services.
具体的,为了实现列车的车地通信,就需要在轨旁和车载端分别布置相应的无线访问接入点(Wireless Access Point,简称AP)和接入单元进行通信,且为了实现信号的冗余,信号网络需要设置两个;而为了实现乘客上网业务,需要单独布置一张通信网络,因此轨道交通综合承载系统一般由至少三张网络组成,用于实现列车的综合承载及乘客上网业务。Specifically, in order to realize the vehicle-to-ground communication of the train, it is necessary to arrange a corresponding wireless access point (AP) and an access unit to perform communication on the track side and the vehicle side, respectively, and to achieve signal redundancy. The signal network needs to be set up two; and in order to realize the passenger Internet service, a communication network needs to be separately arranged. Therefore, the integrated rail transit system generally consists of at least three networks for realizing the comprehensive bearing of the train and the passenger Internet service.
上述综合承载系统设置方式,网络结构复杂,设备数量多,成本高。The above-mentioned integrated bearer system setting mode has a complicated network structure, a large number of devices, and high cost.
发明内容Summary of the invention
本公开旨在至少在一定程度上解决相关技术中的技术问题之一。The present disclosure aims to solve at least one of the technical problems in the related art to some extent.
为此,本公开提出一种轨道交通综合承载系统,该综合承载系统基于LTE-U网络,只需两个通信信号回路,即可实现列车的综合承载及乘客上网业务,不仅网络简单,设备数量少,成本低,而且网络的抗干扰能力强,传输距离远,且在高速移动时可以承载车地综合系统的通信及乘客上网业务,提高了通信的可靠性。To this end, the present disclosure proposes an integrated rail transit system, which is based on an LTE-U network, and requires only two communication signal loops to realize integrated train carrying and passenger Internet access, not only the network is simple, but also the number of devices. Less, low cost, and strong anti-interference ability of the network, long transmission distance, and can carry the communication of the vehicle integrated system and the passenger Internet service when moving at high speed, which improves the reliability of communication.
本公开实施例提出的轨道交通综合承载系统,包括:第一信号子系统及第二通信信号子系统;所述第一信号子系统,用于通过LTE-U网络实现轨旁列车自动控制系统与车载控制设备间的通信;所述第二通信信号子系统,用于通过LTE-U网络实现轨旁乘客服务系统与车载乘客服务设备间的通信、车载无线局域网与互联网间的通信、及轨旁列车自动控制系统与车载控制设备间的通信。The rail transit integrated carrying system proposed by the embodiment of the present disclosure comprises: a first signal subsystem and a second communication signal subsystem; the first signal subsystem is configured to implement an automatic control system for the trackside train through the LTE-U network Communication between the vehicle control devices; the second communication signal subsystem for communicating between the trackside passenger service system and the vehicle passenger service device, the communication between the vehicle wireless LAN and the Internet, and the trackside through the LTE-U network Communication between the train automatic control system and the vehicle control equipment.
可选地,所述第一信号子系统,包括:依次通信连接的轨旁列车自动控制系统、第一交换机、第一基站、第一基站天线、第一车载天线、第一车载接入单元、第一车载交换机及车载控制设备,其中,所述第一基站天线与所述第一车载天线的工作频段为LET-U频段。Optionally, the first signal subsystem includes: a track-side train automatic control system sequentially connected in communication, a first switch, a first base station, a first base station antenna, a first vehicle antenna, a first vehicle access unit, The first in-vehicle switch and the in-vehicle control device, wherein the working frequency band of the first base station antenna and the first vehicle antenna is a LET-U frequency band.
可选地,所述轨旁列车自动控制系统,包括列车自动监控系统、区域控制器及计算机连锁系统,其中,所述列车自动监控系统、区域控制器及计算机连锁系统分别与所述第一交换机通信连接。Optionally, the trackside automatic control system includes an automatic train monitoring system, a regional controller, and a computer interlocking system, wherein the automatic train monitoring system, the regional controller, and the computer interlocking system are respectively associated with the first switch Communication connection.
可选地,所述第一信号子系统还包括:分别与所述第一交换机及所述第一基站连接的第一光电转换设备。Optionally, the first signal subsystem further includes: a first photoelectric conversion device respectively connected to the first switch and the first base station.
可选地,所述第二通信信号子系统,包括:第二交换机;分别与所述第二交换机通信连接的轨旁列车自动控制系统、轨旁乘客服务系统、互联网及第二基站;分别与所述第二基站依次通信连接的第二基站天线、第二车载天线、第二车载接入单元及第二车载交换机;分别与所述第二车载交换机通信连接的车载控制设备、车载乘客服务设备及车载无线局域网设备,其中,所述第二基站天线与所述第二车载天线的工作频段为LET-U频段。Optionally, the second communication signal subsystem includes: a second switch; a track-side train automatic control system, a trackside passenger service system, an Internet, and a second base station respectively connected to the second switch; respectively The second base station antenna, the second vehicle antenna, the second vehicle access unit, and the second vehicle-mounted switch; the vehicle-mounted control device and the vehicle-mounted passenger service device respectively connected to the second vehicle-mounted switch; And an in-vehicle wireless local area network device, wherein a working frequency band of the second base station antenna and the second vehicle antenna is a LET-U frequency band.
可选地,所述第二交换机包括通信接入交换机及至少一个信号接入交换机;Optionally, the second switch includes a communication access switch and at least one signal access switch;
所述通信接入交换机与所述轨旁乘客服务系统通信连接;The communication access switch is in communication connection with the trackside passenger service system;
所述至少一个信号接入交换机与所述轨旁列车自动控制系统通信连接。The at least one signal access switch is in communication with the trackside train automatic control system.
可选地,所述轨旁列车自动控制系统包括列车自动监控系统、区域控制器及计算机连锁系统;Optionally, the trackside automatic control system comprises an automatic train monitoring system, a regional controller and a computer interlocking system;
所述列车自动监控系统、区域控制器及计算机连锁系统分别与一个信号接入交换机通信连接。The train automatic monitoring system, the area controller and the computer interlocking system are respectively connected in communication with a signal access switch.
可选地,所述车载乘客服务设备包括乘客信息设备、闭路电视监控设备、广播设备及紧急呼叫设备;Optionally, the onboard passenger service device comprises a passenger information device, a closed circuit television monitoring device, a broadcast device, and an emergency call device;
所述第二通信信号子系统还包括:第三车载交换机;The second communication signal subsystem further includes: a third in-vehicle switch;
所述第三车载交换机分别与所述第二车载交换机及所述乘客信息设备、所述闭路电视监控设备、所述广播设备连接及所述紧急呼叫设备连接。The third in-vehicle switch is respectively connected to the second in-vehicle switch and the passenger information device, the closed-circuit television monitoring device, the broadcast device, and the emergency call device.
可选地,所述车载控制设备、车载乘客服务设备及所述第二车载交换机同时设置在所述列车的任一机柜中;所述车载无线局域网设备分别设置在列车的每个车厢内。Optionally, the in-vehicle control device, the in-vehicle passenger service device, and the second in-vehicle switch are simultaneously disposed in any cabinet of the train; the in-vehicle wireless local area network devices are respectively disposed in each of the trains.
可选地,所述第二通信信号子系统,还包括:分别与所述第二交换机及所述第二基站连接的第二光电转换设备。Optionally, the second communication signal subsystem further includes: a second photoelectric conversion device respectively connected to the second switch and the second base station.
可选地,所述综合承载系统,还包括分别与所述第一交换机、所述第二交换机及所述互联网连接的防火墙。Optionally, the integrated bearer system further includes a firewall that is respectively connected to the first switch, the second switch, and the Internet.
可选地,所述综合承载系统,还包括骨干交换机;Optionally, the integrated bearer system further includes a backbone switch;
所述骨干交换机分别与所述第一交换机、所述第二交换机、及所述防火墙连接。The backbone switch is respectively connected to the first switch, the second switch, and the firewall.
本公开实施例的轨道交通综合承载系统,基于LTE-U网络,只需两个通信信号回路,即可实现列车的综合承载及乘客上网业务,不仅网络简单,设备数量少,成本低,而且网络的抗干扰能力强,传输距离远,且在高速移动时可以承载车地综合系统的通信及乘客上网业务,提高了通信的可靠性。The rail transit integrated bearer system of the embodiment of the present disclosure is based on the LTE-U network, and only needs two communication signal loops to realize integrated train carrying and passenger Internet access services, which is simple in network, small in number of devices, low in cost, and network. The anti-interference ability is strong, the transmission distance is long, and the communication of the vehicle-ground integrated system and the passenger Internet access service can be carried at the time of high-speed movement, thereby improving the reliability of communication.
附图说明DRAWINGS
本发明上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解,其中:The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from
图1是本公开一个实施例的轨道交通综合承载系统的结构示意图;1 is a schematic structural view of a rail transit integrated carrying system according to an embodiment of the present disclosure;
图2是本公开另一个实施例的轨道交通综合承载系统的结构示意图;2 is a schematic structural diagram of a rail transit integrated carrying system according to another embodiment of the present disclosure;
图3是本公开一个实施例的车载网络系统的第二通信信号子系统部分的结构示意图;3 is a schematic structural diagram of a second communication signal subsystem portion of an in-vehicle network system according to an embodiment of the present disclosure;
图4是本公开又一个实施例的轨道交通综合承载系统的结构示意图;4 is a schematic structural diagram of a rail transit integrated carrying system according to still another embodiment of the present disclosure;
图5是本公开一个实施例的地面网络系统的结构示意图;FIG. 5 is a schematic structural diagram of a terrestrial network system according to an embodiment of the present disclosure; FIG.
图6是本公开又一个实施例的轨道交通综合承载系统的结构示意图;6 is a schematic structural diagram of a rail transit integrated carrying system according to still another embodiment of the present disclosure;
图7是本公开一个实施例的地面网络系统的第二通信信号子系统部分的结构示意图;7 is a schematic structural diagram of a second communication signal subsystem portion of a terrestrial network system according to an embodiment of the present disclosure;
图8是本公开一个实施例的地面网络系统的第一信号子系统部分的结构示意图;8 is a schematic structural diagram of a first signal subsystem portion of a terrestrial network system according to an embodiment of the present disclosure;
图9是本公开一个实施例的车载网络系统的第一信号子系统部分的结构示意图。9 is a schematic structural diagram of a first signal subsystem portion of an in-vehicle network system according to an embodiment of the present disclosure.
具体实施方式Detailed ways
下面详细描述本公开的实施例,所述实施例的示例在附图中示出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的,旨在用于解释本公开,而不能理解为对本公开的限制。The embodiments of the present disclosure are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative, and are not intended to be construed as limiting.
本公开各实施例针对相关技术中的轨道交通综合承载系统,网络复杂,设备数量多,成本高的问题,提出一种轨道交通综合承载系统。Embodiments of the present disclosure are directed to a rail transit integrated bearer system in the related art, which has a complicated network, a large number of devices, and a high cost, and proposes a rail transit integrated bearer system.
本公开实施例提供的轨道交通综合承载系统,包括第一信号子系统和第二通信信号子系统,第一信号子系统用于通过免授权载波(Advanced in Unlicensed Spectrums)上的长期演进技术(Long Term Evolution,简称LTE),即LTE-U网络实现轨旁列车自动控制系统与车载控制设备间的通信,第二通信信号子系统用于通过LTE-U网络实现轨旁乘客服务系统与车载乘客服务设备间的通信、车载无线局域网与互联网间的通信、及轨旁列车自动控制 系统与车载控制设备间的通信。该综合承载系统基于LTE-U网络,只需两个通信信号回路,即可实现列车的综合承载及乘客上网业务,不仅网络简单,设备数量少,成本低,而且网络的抗干扰能力强,传输距离远,且在高速移动时可以承载车地综合系统的通信及乘客上网业务,提高了通信的可靠性。The rail transit integrated bearer system provided by the embodiment of the present disclosure includes a first signal subsystem and a second communication signal subsystem, and the first signal subsystem is used for long-term evolution technology on Advanced in Unlicensed Spectrums (Long Term Evolution (LTE), that is, the LTE-U network realizes communication between the automatic control system of the trackside train and the vehicle control device, and the second communication signal subsystem is used to implement the trackside passenger service system and the vehicle passenger service through the LTE-U network. Communication between devices, communication between the wireless LAN and the Internet, and communication between the automatic control system of the trackside train and the vehicle control device. The integrated bearer system is based on the LTE-U network, and only needs two communication signal loops to realize the integrated bearer and passenger Internet access service of the train. The network is simple, the number of devices is small, the cost is low, and the network has strong anti-interference ability. The distance is long, and when the high-speed mobile can carry the communication of the vehicle integrated system and the passenger Internet service, the communication reliability is improved.
下面参考附图描述本公开实施例的轨道交通综合承载系统。The rail transit integrated carrying system of the embodiment of the present disclosure will be described below with reference to the drawings.
图1是本公开一个实施例的轨道交通综合承载系统的结构示意图。1 is a schematic structural view of a rail transit integrated carrying system according to an embodiment of the present disclosure.
如图1所示,该轨道交通综合承载系统包括:第一信号子系统及第二通信信号子系统。As shown in FIG. 1 , the rail transit integrated carrying system comprises: a first signal subsystem and a second communication signal subsystem.
其中,第一信号子系统,用于通过LTE-U网络实现轨旁列车自动控制系统(Communication Based Train Control System,简称CBTC)与车载控制设备(Vehicle On-Board Controller,简称VOBC)间的通信;The first signal subsystem is configured to implement communication between a Communication Based Train Control System (CBTC) and a Vehicle On-Board Controller (VOBC) through an LTE-U network;
第二通信信号子系统,用于通过LTE-U网络实现轨旁乘客服务系统与车载乘客服务设备间的通信、车载无线局域网与互联网间的通信、及轨旁列车自动控制系统与车载控制设备间的通信。a second communication signal subsystem for implementing communication between the trackside passenger service system and the vehicle passenger service device, the communication between the vehicle wireless local area network and the Internet, and the automatic control system between the trackside train and the vehicle control device through the LTE-U network Communication.
可以理解的是,LTE-U网络具有较高的吞吐能力,因此,本实施例中,以LTE-U网络作为业务通道,利用其较高的吞吐能力实现所有通信业务的功能。It can be understood that the LTE-U network has a high throughput capability. Therefore, in this embodiment, the LTE-U network is used as a service channel, and the functions of all communication services are realized by using the high throughput capability.
具体的,第一信号子系统仅用于通过LTE-U网络实现CBTC与VOBC间的信号传输,从而可以实现列车的控制信号的可靠传输。第二通信信号子系统可以通过LTE-U网络实现轨旁乘客服务系统与车载乘客服务设备间的通信、车载无线局域网与互联网间的通信、及轨旁列车自动控制系统与车载控制设备间的通信,从而可以实现列车的综合承载及乘客上网业务。同时,由于第一信号子系统和第二通信信号子系统均可以通过LTE-U网络,实现CBTC与VOBC间的通信,因此实现了列车控制信号的冗余,保证了轨道交通综合承载系统的可靠性。由此,只需第一信号子系统和第二通信信号子系统的两个通信信号回路,即只需要两张网络,就可实现列车的综合承载及乘客上网业务,网络简单,设备数量少,成本低。Specifically, the first signal subsystem is only used to implement signal transmission between the CBTC and the VOBC through the LTE-U network, so that reliable transmission of the control signal of the train can be realized. The second communication signal subsystem can realize communication between the trackside passenger service system and the vehicle passenger service device, communication between the vehicle wireless local area network and the Internet, and communication between the trackside train automatic control system and the vehicle control device through the LTE-U network. Therefore, the comprehensive bearing of the train and the passenger Internet service can be realized. At the same time, since the first signal subsystem and the second communication signal subsystem can communicate between CBTC and VOBC through the LTE-U network, the redundancy of the train control signal is realized, and the reliability of the rail transit integrated bearer system is ensured. Sex. Therefore, only two communication signal loops of the first signal subsystem and the second communication signal subsystem are needed, that is, only two networks are needed, and the integrated bearing of the train and the passenger Internet access service can be realized, and the network is simple and the number of devices is small. low cost.
并且,第二通信信号子系统,可以根据承载的不同业务的需求,为不同的业务进行不同时隙的配比、或者上下行吞吐量的配比等,从而保证轨旁乘客服务系统与车载乘客服务设备间、车载无线局域网与互联网间、及轨旁列车自动控制系统与车载控制设备间的可靠通信。Moreover, the second communication signal subsystem can perform different time slot ratios or ratios of uplink and downlink throughputs for different services according to the requirements of different services carried, thereby ensuring the trackside passenger service system and the vehicle passengers. Reliable communication between service equipment rooms, in-vehicle wireless LAN and Internet, and on the automatic control system of track-side trains and on-board control equipment.
下面结合图2-图9,对本发明实施例的轨道交通综合承载系统的结构进行详细说明。The structure of the rail transit integrated carrying system according to the embodiment of the present invention will be described in detail below with reference to FIGS. 2-9.
如图2所示,第一信号子系统,包括:依次通信连接的轨旁列车自动控制系统、第一交换机、第一基站、第一基站天线、第一车载天线、第一车载接入单元TAU1、第一车载 交换机及车载控制设备,其中,所述第一基站天线与所述第一车载天线的工作频段为LET-U频段。As shown in FIG. 2, the first signal subsystem includes: a track-side train automatic control system sequentially connected in communication, a first switch, a first base station, a first base station antenna, a first vehicle antenna, and a first vehicle access unit TAU1. The first in-vehicle switch and the in-vehicle control device, wherein the working frequency band of the first base station antenna and the first vehicle antenna is a LET-U frequency band.
第二通信信号子系统,包括:第二交换机;分别与第二交换机通信连接的轨旁列车自动控制系统、轨旁乘客服务系统、互联网及第二基站;与第二基站依次通信连接的第二基站天线、第二车载天线、第二车载接入单元TAU2及第二车载交换机;分别与第二车载交换机通信连接的车载控制设备、车载乘客服务设备及车载无线局域网设备,其中,所述第二基站天线与所述第二车载天线的工作频段为LET-U频段。a second communication signal subsystem, comprising: a second switch; a track-side train automatic control system respectively connected to the second switch, a trackside passenger service system, the Internet and a second base station; and a second communication connection with the second base station in sequence a base station antenna, a second vehicle antenna, a second vehicle access unit TAU2, and a second vehicle-mounted switch; an in-vehicle control device, an in-vehicle passenger service device, and an in-vehicle wireless local area network device respectively connected to the second in-vehicle switch, wherein the second The working frequency band of the base station antenna and the second vehicle antenna is the LET-U frequency band.
其中,轨旁乘客服务系统包括乘客信息系统(Passenger Information System,简称PIS)、闭路电视监控系统(Closed Circuit TV,简称CCTV)、广播系统(Public Address,简称PA)及紧急呼叫系统。其中,紧急呼叫系统可以是火灾报警系统等任意紧急呼叫系统。Among them, the trackside passenger service system includes a Passenger Information System (PIS), a Closed Circuit TV (CCTV), a Broadcasting System (PA), and an emergency call system. The emergency call system may be any emergency call system such as a fire alarm system.
相应的,车载乘客服务设备,可以包括乘客信息设备、闭路电视监控设备、广播设备、紧急呼叫设备等等。Correspondingly, the vehicle passenger service device may include a passenger information device, a closed circuit television monitoring device, a broadcasting device, an emergency call device, and the like.
轨旁列车自动控制系统,包括列车自动监控系统(Automatic Train Supervision,简称ATS)、区域控制器(Zone Comtroller,简称ZC)及计算机连锁系统(Computer Interlocking,简称CI)。在第一信号子系统中,ATS、ZC、CI分别与第一交换机通信连接。Automatic control system for trackside trains, including Automatic Train Supervision (ATS), Zone Comtroller (ZC) and Computer Interlocking (CI). In the first signal subsystem, ATS, ZC, and CI are respectively communicatively coupled to the first switch.
需要说明的是,在本公开实施例中,由于第一信号子系统仅用于实现列车的控制信号的可靠传输,因此第一交换机的类型为信号接入交换机。而第二通信信号子系统中由于同时包括信号和通信的传输,因此第二交换机包括信号接入交换机和通信接入交换机两种类型的交换机。It should be noted that, in the embodiment of the present disclosure, since the first signal subsystem is only used to implement reliable transmission of the control signal of the train, the type of the first switch is a signal access switch. While the second communication signal subsystem includes both signal and communication transmissions, the second switch includes two types of switches: a signal access switch and a communication access switch.
相应的,在第二通信信号子系统中,ATS、ZC、CI分别与信号接入交换机连接,PIS、CCTV、PA及紧急呼叫系统分别与通信接入交换机连接。Correspondingly, in the second communication signal subsystem, ATS, ZC, and CI are respectively connected to the signal access switch, and the PIS, CCTV, PA, and emergency call system are respectively connected to the communication access switch.
值得注意的是,在本公开实施例的第一信号子系统或第二通信信号子系统中,ATS、ZC、CI可以连接到同一个信号接入交换机,或分别连接到各自对应的信号接入交换机中,本申请对此不作限制。其中,ATS、ZC、CI各自对应的信号接入交换机可以相同,也可以不同,本申请对此不作限制。It should be noted that in the first signal subsystem or the second communication signal subsystem of the embodiment of the present disclosure, ATS, ZC, and CI may be connected to the same signal access switch, or respectively connected to respective corresponding signal accesses. In the switch, this application does not limit this. The signal access switches corresponding to the ATS, the ZC, and the CI may be the same or different, and the present application does not limit this.
即,在本公开实施例的第二通信信号子系统中,第二交换机包括通信接入交换机及至少一个信号接入交换机;通信接入交换机与轨旁乘客服务系统通信连接;至少一个信号接入交换机与轨旁列车自动控制系统通信连接。That is, in the second communication signal subsystem of the embodiment of the present disclosure, the second switch includes a communication access switch and at least one signal access switch; the communication access switch is in communication with the trackside passenger service system; at least one signal access The switch is in communication with the automatic control system of the trackside train.
在一种可能的实现形式中,轨旁列车自动控制系统包括列车自动监控系统、区域控制器及计算机连锁系统;列车自动监控系统、区域控制器及计算机连锁系统分别与一个信号接入交换机通信连接。In a possible implementation form, the automatic control system of the trackside train comprises an automatic train monitoring system, a regional controller and a computer interlocking system; the automatic train monitoring system, the regional controller and the computer interlocking system are respectively connected with a signal access switch. .
另外,轨道交通综合承载系统中,车载控制设备可以为一个,也可以为多个,此处不作限制。通常,为了保证对列车的可靠控制,可以在列车中设置两个车载控制设备,从而实现对列车的冗余控制。本发明实施例的各附图中以轨道交通综合承载系统包括VOBC1和VOBC2两个车载控制设备为例进行示意。In addition, in the integrated rail transit system, the vehicle control device may be one or more, and is not limited herein. Generally, in order to ensure reliable control of the train, two in-vehicle control devices can be installed in the train, thereby achieving redundant control of the train. In the drawings of the embodiments of the present invention, the rail transit integrated carrying system includes two VOBC1 and VOBC2 in-vehicle control devices as an example.
具体的,第一信号子系统中,轨旁列车自动控制系统、第一交换机、第一基站、第一基站天线、第一车载天线、第一车载接入单元TAU1、第一车载交换机及车载控制设备依次通信连接,第一基站天线与所述第一车载天线的工作频段为LET-U频段,从而通过LTE-U网络实现CBTC与VOBC间的信号传输。由于第一信号子系统仅用于实现CBTC与VOBC间的信号传输,从而可以保证列车的控制信号不被其它信号干扰,实现了列车控制信号的可靠传输。Specifically, in the first signal subsystem, the trackside train automatic control system, the first switch, the first base station, the first base station antenna, the first vehicle antenna, the first vehicle access unit TAU1, the first vehicle switch, and the vehicle control The device is connected in communication, and the working frequency band of the first base station antenna and the first vehicle antenna is the LET-U frequency band, so that the signal transmission between the CBTC and the VOBC is realized through the LTE-U network. Since the first signal subsystem is only used to realize the signal transmission between the CBTC and the VOBC, the control signal of the train can be ensured not to be interfered by other signals, and the reliable transmission of the train control signal is realized.
第二通信信号子系统中,轨旁列车自动控制系统、轨旁乘客服务系统及互联网,分别通过第二交换机、第二基站、第二基站天线、第二车载天线、第二车载接入单元TAU2、第二车载交换机,与车载控制设备、车载乘客服务设备及车载无线局域网设备连接,从而实现了轨旁列车自动控制系统与车载乘客服务设备间的通信、轨旁乘客服务系统与车载乘客服务设备间的通信及车载无线局域网与互联网间的通信,进而实现了列车的综合承载及乘客上网业务。同时,车载控制设备分别通过第一车载接入单元TAU1及第二车载接入单元TAU2,与轨旁列车自动控制系统之间进行信号传输,从而实现了列车控制信号的冗余,保证了轨道交通综合承载系统的可靠性。In the second communication signal subsystem, the trackside automatic control system, the trackside passenger service system and the Internet pass through the second switch, the second base station, the second base station antenna, the second vehicle antenna, and the second vehicle access unit TAU2, respectively. The second on-board switch is connected with the vehicle control device, the vehicle passenger service device and the vehicle wireless LAN device, thereby realizing the communication between the trackside train automatic control system and the vehicle passenger service device, the trackside passenger service system and the vehicle passenger service device. Inter-communication and communication between the in-vehicle wireless local area network and the Internet, thereby realizing the comprehensive carrying of the train and the passenger Internet service. At the same time, the vehicle control device transmits signals between the first vehicle access unit TAU1 and the second vehicle access unit TAU2 and the trackside train automatic control system, thereby realizing the redundancy of the train control signal and ensuring the rail transit. The reliability of the integrated carrier system.
可以理解的是,通过在第一信号子系统与第二通信信号子系统中,分别设置第一交换机、第二交换机、第一车载交换机及第二车载交换机,利用交换机划分虚拟局域网(Virtual Local Area Network,简称VLAN),对业务进行逻辑划分,从而可以避免两个子系统之间及第二通信信号子系统内的信号干扰,实现了所有业务安全运行。It can be understood that the first switch, the second switch, the first in-vehicle switch and the second in-vehicle switch are respectively disposed in the first signal subsystem and the second communication signal subsystem, and the virtual local area network is divided by the switch (Virtual Local Area) Network (referred to as VLAN), logically divides the service, so as to avoid signal interference between the two subsystems and the second communication signal subsystem, and achieve safe operation of all services.
需要说明的是,由于通常情况下,第一交换机与第一基站的距离较远,因而第一交换机与第一基站通常通过光纤传输,而第一基站通常处理的为电信号,因此在本发明实施例中,如图2所示,可以在第一交换机与第一基站之间设置第一光电转换设备,从而将第一交换机发送的光信号转换为电信号,再传输给第一基站。It should be noted that, since the first switch and the first base station are generally far away from each other, the first switch and the first base station are usually transmitted through an optical fiber, and the first base station usually processes an electrical signal, so in the present invention In an embodiment, as shown in FIG. 2, a first photoelectric conversion device may be disposed between the first switch and the first base station, so that the optical signal sent by the first switch is converted into an electrical signal, and then transmitted to the first base station.
即,第一信号子系统还包括:分别与第一交换机及第一基站连接的第一光电转换设备。That is, the first signal subsystem further includes: a first photoelectric conversion device respectively connected to the first switch and the first base station.
相应的,如图2所示,在第二通信信号子系统中,还包括:分别与第二交换机及第二基站连接的第二光电转换设备。Correspondingly, as shown in FIG. 2, the second communication signal subsystem further includes: a second photoelectric conversion device respectively connected to the second switch and the second base station.
另外,具体实现时,车载控制设备、车载乘客服务设备及第二车载交换机可以同时设置在列车的任一机柜中,从而即减少了列车中通信线路的布设长度,又降低由于通信线路 引起的信号损失,提高了各车载设备通信的可靠性。In addition, in specific implementation, the in-vehicle control device, the in-vehicle passenger service device, and the second in-vehicle switch can be simultaneously disposed in any cabinet of the train, thereby reducing the length of the communication line in the train and reducing the signal caused by the communication line. The loss improves the reliability of communication of each in-vehicle device.
并且,为了最大限度的降低第一信号子系统与第二通信信号子系统间的干扰,第一车载天线及第二车载天线,可以分别设置在列车的两端。相应的,第一车载接入单元TAU1及第二车载接入单元TAU2也可以分别设置在列车两端。而车载无线局域网设备可以分别设置在列车的每个车厢内,从而可以使每个车厢内的乘客均可以接入车载无线局域网,从而满足列车中所有乘客的上网需求。Moreover, in order to minimize interference between the first signal subsystem and the second communication signal subsystem, the first vehicle antenna and the second vehicle antenna may be respectively disposed at both ends of the train. Correspondingly, the first in-vehicle access unit TAU1 and the second in-vehicle access unit TAU2 may also be respectively disposed at both ends of the train. The in-vehicle wireless local area network devices can be respectively disposed in each of the trains, so that the passengers in each of the cars can be connected to the in-vehicle wireless local area network, thereby meeting the Internet access requirements of all passengers in the train.
进一步的,由于车载乘客服务设备包括乘客信息设备、闭路电视监控设备、广播设备及紧急呼叫设备。因此,为了实现上述各乘客服务设备间信号的隔离,本公开实施例中,还可以通过交换机将上述各乘客服务设备间信号进行隔离。即,如图3所示,第二通信信号子系统还可以包括:第三车载交换机。Further, since the vehicle passenger service equipment includes passenger information equipment, closed circuit television monitoring equipment, broadcasting equipment, and emergency call equipment. Therefore, in order to achieve the isolation of the signals between the passenger service devices, in the embodiment of the present disclosure, the signals between the passenger service devices may be isolated by the switch. That is, as shown in FIG. 3, the second communication signal subsystem may further include: a third in-vehicle switch.
其中,第三车载交换机分别与第二车载交换机及乘客信息设备、闭路电视监控设备、广播设备及紧急呼叫设备连接。The third vehicle-mounted switch is respectively connected to the second vehicle-mounted switch and the passenger information device, the closed-circuit television monitoring device, the broadcast device, and the emergency call device.
通过利用第三车载交换机划分VLAN,对乘客信息设备、闭路电视监控设备、广播设备及紧急呼叫设备等业务数据进行逻辑划分,从而保证各业务的安全运行。By dividing the VLAN by using the third in-vehicle switch, the service data of the passenger information device, the closed-circuit television monitoring device, the broadcasting device, and the emergency call device are logically divided to ensure the safe operation of each service.
另外,为了保证数据安全,如图4所示,在综合承载系统中,还可以包括防火墙,防火墙分别与第一交换机、第二交换机及互联网连接,从而通信、信号及互联网数据全部经过防火墙,从而保证综合承载系统中数据的安全性。具体实现时,可以将网关设置到防火墙上,用防火墙做策略进行不同业务数据的隔离。In addition, in order to ensure data security, as shown in FIG. 4, in the integrated bearer system, a firewall may also be included, and the firewall is respectively connected to the first switch, the second switch, and the Internet, so that the communication, the signal, and the Internet data all pass through the firewall, thereby Ensure the security of data in the integrated bearer system. In the specific implementation, the gateway can be set to the firewall, and the firewall is used as a policy to isolate different service data.
进一步的,如图4所示,在本公开实施例提供的综合承载系统中,为了实现通信及信号的可靠隔离,还可以在第一交换机、第二交换机及防火墙之间设置骨干交换机,骨干交换机分别与第一交换机、第二交换机、及防火墙连接。Further, as shown in FIG. 4, in the integrated bearer system provided by the embodiment of the present disclosure, in order to achieve reliable isolation of communication and signals, a backbone switch and a backbone switch may be disposed between the first switch, the second switch, and the firewall. Connect to the first switch, the second switch, and the firewall respectively.
具体实现时,第二通信信号子系统的各系统业务数据如轨旁CCTV、PIS、广播系统、紧急呼叫系统、ATS、CI、ZC的业务数据通过第二交换机连接到骨干交换机上,第一信号子系统的业务数据如轨旁ATS、CI、ZC的业务数据通过第一交换机接入骨干交换机,互联网信号不再通过第二交换机,而是直接通过防火墙接入到骨干交换机上,以上所有业务数据到达骨干交换机后,骨干交换机可将各业务数据传递到防火墙,经过防火墙做策略进行数据隔离后再回传到骨干交换机,进而再以LTE-U网络作为数据通道,通过基站天线传递到车载天线上。In a specific implementation, the service data of each system service data of the second communication signal subsystem, such as the trackside CCTV, the PIS, the broadcast system, the emergency call system, the ATS, the CI, and the ZC, are connected to the backbone switch through the second switch, and the first signal is The service data of the subsystem, such as the service data of the trackside ATS, CI, and ZC, is connected to the backbone switch through the first switch. The Internet signal is no longer passed through the second switch, but is directly connected to the backbone switch through the firewall. After the backbone switch is reached, the backbone switch can transmit the service data to the firewall. After the firewall is used as the policy, the data is isolated and then transmitted back to the backbone switch. Then, the LTE-U network is used as the data channel and transmitted to the vehicle antenna through the base station antenna. .
进一步的,车载天线接收的业务数据经过车载接入单元后,传到车载交换机中,进而车载交换机根据业务数据类型,将各业务数据进行分离后,分别下发至对应的车载设备中,比如车载无线局域网设备、车载乘客服务设备等。Further, the service data received by the vehicle antenna is transmitted to the vehicle switch through the vehicle access unit, and then the vehicle switch separates the service data according to the service data type, and then delivers the service data to the corresponding vehicle device, such as the vehicle. Wireless LAN equipment, car passenger service equipment, etc.
相应的,上行业务数据的传输过程为上述过程的逆过程,此处不再赘述。Correspondingly, the transmission process of the uplink service data is the reverse process of the foregoing process, and details are not described herein again.
通过以防火墙对数据进行隔离,再以交换机划分VLAN进行逻辑划分,实现了所有业务安全运行。By separating the data by the firewall and then dividing the VLAN by the switch for logical division, all services are safely operated.
下面以结合图3-图5,对该综合承载系统进行地面系统及车载系统的划分后,对本公开提供的轨道交通综合承载系统进行进一步说明。The following is a description of the integrated rail transit system provided by the present disclosure after the division of the ground system and the in-vehicle system of the integrated carrier system is described in conjunction with FIG. 3 to FIG. 5 .
由图4可知,本发明实施例提供的轨道交通综合承载系统,可以分为地面网络系统及车载网络系统两部分,两部分分别作为一个整体通过LTE-U网络进行通信。具体的,地面网络系统的部分结构可以如图5所示,车载网络系统的部分结构可以如图3所示。下面结合图3、图4和图5,对本公开实施例提供的轨道交通综合承载系统的结构和工作原理进行详细说明。As can be seen from FIG. 4, the integrated rail transit system provided by the embodiment of the present invention can be divided into two parts: a terrestrial network system and an in-vehicle network system, and the two parts communicate as a whole through the LTE-U network. Specifically, part of the structure of the terrestrial network system can be as shown in FIG. 5, and part of the structure of the in-vehicle network system can be as shown in FIG. 3. The structure and working principle of the rail transit integrated carrying system provided by the embodiment of the present disclosure are described in detail below with reference to FIG. 3, FIG. 4 and FIG.
如图4和图5所示,所述地面网络系统,包括轨旁乘客服务系统、轨旁列车自动控制系统及互联网。轨旁列车自动控制系统中的ZC、CI、ATS等系统可以通过各自分别对应的第一交换机及各自分别对应的第二交换机连接到骨干交换机上(图5中仅示出了部分连接关系),轨旁乘客服务系统中的PIS、CCTV、乘客广播系统、紧急呼叫系统可以通过第二交换机连接到骨干交换机,引入的互联网信号只为车载乘客上网使用,直接接入防火墙。以上所有业务数据达到骨干交换机后再将数据传递到防火墙,网关设置到防火墙上,经过防火墙做策略对信号、通信及互联网数据进行相互隔离后再回传到骨干交换机,通过骨干交换机到达LTE核心网,通过光纤到轨旁基站经无线网络传递到列车上。As shown in FIG. 4 and FIG. 5, the terrestrial network system includes a trackside passenger service system, a trackside train automatic control system, and the Internet. The ZC, CI, ATS and other systems in the automatic control system of the track-side train can be connected to the backbone switch through the respective first switch and the corresponding second switch respectively (only part of the connection relationship is shown in FIG. 5). The PIS, CCTV, passenger broadcasting system, and emergency call system in the trackside passenger service system can be connected to the backbone switch through the second switch, and the introduced Internet signal is only used for the onboard passengers to access the Internet and directly access the firewall. After all the above service data reaches the backbone switch, the data is transmitted to the firewall, and the gateway is set to the firewall. After the firewall is used as a policy, the signals, communication, and Internet data are isolated from each other and then transmitted back to the backbone switch to reach the LTE core network through the backbone switch. Passing through the fiber-to-rail base station to the train via the wireless network.
如图3和图4所示,车载网络系统中,第二车载接入单元TAU2设置在列车一端,第一车载接入单元TAU1设置在列车另一端,车载无线局域网设备分别设置在列车的每个车厢内,车载控制设备、车载乘客服务设备中的PIS、CCTV、广播设备、紧急呼叫设备、第二车载交换机均设置在同一机柜中,且以设置在列车一端机柜为例。其中,各车载乘客服务设备通过第三车载交换机连接第二车载交换机,车载无线局域网设备及车载控制设备直接连接第二车载交换机。车载部分网关设置在车载接入单元上,地面数据传输到列车上后,由车载接入单元下发到相应系统。As shown in FIG. 3 and FIG. 4, in the in-vehicle network system, the second in-vehicle access unit TAU2 is disposed at one end of the train, the first in-vehicle access unit TAU1 is disposed at the other end of the train, and the in-vehicle wireless local area network device is respectively disposed in each of the trains. In the vehicle compartment, the vehicle control device, the PIS, the CCTV, the broadcasting device, the emergency call device, and the second vehicle-mounted switch in the vehicle passenger service device are all disposed in the same cabinet, and the cabinet is disposed at one end of the train as an example. The vehicle-mounted passenger service device is connected to the second vehicle-mounted switch through the third vehicle-mounted switch, and the vehicle-mounted wireless LAN device and the vehicle-mounted control device are directly connected to the second vehicle-mounted switch. The vehicle part gateway is set on the vehicle access unit, and after the ground data is transmitted to the train, it is delivered to the corresponding system by the vehicle access unit.
通过地面网络系统及车载网络系统,使得轨旁列车自动控制系统依靠LTE-U网络实现各种车辆控制,车载乘客服务系统利用LTE-U网络实现组播及视频回传的功能,每节车厢的车载无线局域网设备分别连接到第二车载交换机上,由第二车载交换机进行数据传输和以太网(Power Over Ethernet,简称POE)供电,上网业务由互联网提供。虽然上网业务占用LTE-U网络的吞吐量,但因LTE-U网络具有较高的吞吐能力,因此可以满足上网需求。Through the terrestrial network system and the vehicle network system, the trackside train automatic control system relies on the LTE-U network to realize various vehicle control, and the vehicle passenger service system utilizes the LTE-U network to realize the function of multicast and video return, each car compartment The in-vehicle wireless LAN devices are respectively connected to the second in-vehicle switch, and the second in-vehicle switch performs data transmission and Power Over Ethernet (POE) power supply, and the Internet service is provided by the Internet. Although the Internet service occupies the throughput of the LTE-U network, the LTE-U network has a high throughput capacity, so it can meet the Internet access requirements.
在本公开一种可能的实现形式中,为了更好的实现数据隔离,提高轨道交通综合承载 系统的可靠性,第一信号子系统和第二通信信号子系统中还可以分别包括防火墙和骨干交换机。In a possible implementation form of the present disclosure, in order to better implement data isolation and improve the reliability of the integrated rail transit system, the first signal subsystem and the second communication signal subsystem may respectively include a firewall and a backbone switch. .
具体的,如图6所示,第一信号子系统中可以包括第一防火墙,第二通信信号子系统中可以包括第二防火墙,第一防火墙与第一交换机连接,第二防火墙分别与第二交换机及互联网连接,从而通信、信号及互联网数据全部经过防火墙,从而保证综合承载系统中数据的安全性。具体实现时,可以将网关设置到防火墙上,用防火墙做策略进行不同业务数据的隔离。Specifically, as shown in FIG. 6, the first signal subsystem may include a first firewall, and the second communication signal subsystem may include a second firewall, where the first firewall is connected to the first switch, and the second firewall is respectively connected to the second The switch and the Internet connection, so that the communication, signal and Internet data all pass through the firewall, thereby ensuring the security of the data in the integrated bearer system. In the specific implementation, the gateway can be set to the firewall, and the firewall is used as a policy to isolate different service data.
进一步的,如图6所示,在第一交换机与第一防火墙之间可以设置第一骨干交换机,在第二交换机及第二防火墙之间可以设置第二骨干交换机,第一骨干交换机分别与第一交换机及第一防火墙连接,第二骨干交换机分别与第二交换机及第二防火墙连接。Further, as shown in FIG. 6, a first backbone switch may be disposed between the first switch and the first firewall, and a second backbone switch may be disposed between the second switch and the second firewall, where the first backbone switch and the first backbone switch respectively A switch is connected to the first firewall, and the second backbone switch is connected to the second switch and the second firewall.
具体实现时,在第二通信信号子系统中,各系统业务数据如轨旁CCTV、PIS、广播系统、紧急呼叫系统、轨旁ATS、CI、ZC的业务数据通过第二交换机连接到第二骨干交换机上,互联网信号不再通过第二交换机,而是直接通过第二防火墙接入到第二骨干交换机上,以上所有业务数据到达第二骨干交换机后,第二骨干交换机可将各业务数据传递到第二防火墙,经过第二防火墙做策略进行数据隔离后再回传到第二骨干交换机,进而再以LTE-U网络作为数据通道,通过第二基站天线传递到第二车载天线上。In a specific implementation, in the second communication signal subsystem, the service data of each system service data such as the trackside CCTV, the PIS, the broadcast system, the emergency call system, the trackside ATS, the CI, and the ZC are connected to the second backbone through the second switch. On the switch, the Internet signal is no longer passed through the second switch, but is directly connected to the second backbone switch through the second firewall. After all the service data reaches the second backbone switch, the second backbone switch can transmit the service data to the second backbone switch. The second firewall passes through the second firewall to perform data isolation and then returns to the second backbone switch, and then uses the LTE-U network as a data channel to transmit to the second vehicle antenna through the second base station antenna.
进一步的,第二车载天线接收的业务数据经过第二车载接入单元后,传到第二车载交换机中,进而第二车载交换机根据业务数据类型,将各业务数据进行分离后,分别下发至对应的车载设备中,比如车载无线局域网设备、车载乘客服务设备等。Further, the service data received by the second vehicle-mounted antenna is transmitted to the second vehicle-mounted switch through the second in-vehicle access unit, and then the second in-vehicle switch separates the service data according to the service data type, and then delivers the service data to the vehicle data. Corresponding in-vehicle devices, such as in-vehicle wireless LAN devices, car passenger service devices, and the like.
相应的,上行业务数据的传输过程为上述过程的逆过程,第一信号子系统中的业务数据的传输过程与上述过程类似,此处不再赘述。Correspondingly, the transmission process of the uplink service data is the reverse process of the foregoing process, and the process of transmitting the service data in the first signal subsystem is similar to the foregoing process, and details are not described herein again.
通过以防火墙对数据进行隔离,再以交换机划分VLAN进行逻辑划分,实现了所有业务安全运行。By separating the data by the firewall and then dividing the VLAN by the switch for logical division, all services are safely operated.
下面以结合图3、图6-图9,对该综合承载系统进行地面系统及车载系统的划分后,对本公开提供的轨道交通综合承载系统进行进一步说明。The rail transit integrated bearer system provided by the present disclosure will be further described below with reference to FIG. 3 and FIG. 6 to FIG. 9 after the integrated bearer system is divided into the ground system and the in-vehicle system.
由图6可知,本发明实施例提供的轨道交通综合承载系统,可以分为地面网络系统及车载网络系统两部分,两部分分别作为一个整体通过LTE-U网络进行通信。具体的,地面网络系统的部分结构可以如图7和图8所示,其中,图7为地面网络系统的第二通信信号子系统部分的结构示意图,图8为地面网络系统的第一信号子系统部分的结构示意图。车载网络系统的部分结构可以如图3和图9所示,其中,图3为车载网络系统的第二通信信号子系统部分的结构示意图,图9为车载网络系统的第一信号子系统部分的结构示意图。It can be seen from FIG. 6 that the rail transit integrated bearer system provided by the embodiment of the present invention can be divided into two parts: a terrestrial network system and an in-vehicle network system, and the two parts communicate as a whole through the LTE-U network. Specifically, a part of the structure of the terrestrial network system may be as shown in FIG. 7 and FIG. 8. FIG. 7 is a schematic structural diagram of a second communication signal subsystem part of the terrestrial network system, and FIG. 8 is a first signal of the terrestrial network system. Schematic diagram of the system part. A part of the structure of the in-vehicle network system can be as shown in FIG. 3 and FIG. 9. FIG. 3 is a schematic structural diagram of a second communication signal subsystem portion of the in-vehicle network system, and FIG. 9 is a first signal subsystem portion of the in-vehicle network system. Schematic.
下面结合图3、图6-图9,对本公开实施例提供的轨道交通综合承载系统的结构和工作原理进行详细说明。The structure and working principle of the rail transit integrated carrying system provided by the embodiment of the present disclosure are described in detail below with reference to FIG. 3 and FIG. 6 to FIG.
如图6和图7所示,所述地面网络系统的第二通信信号子系统部分,包括轨旁乘客服务系统、轨旁列车自动控制系统及互联网。轨旁列车自动控制系统中的ZC、CI、ATS等系统可以通过各自分别对应的信号接入交换机连接到第二骨干交换机上,轨旁乘客服务系统中的PIS、CCTV、乘客广播系统、紧急呼叫系统可以通过通信接入交换机连接到第二骨干交换机,引入的互联网信号只为车载乘客上网使用,直接接入第二防火墙。以上所有业务数据达到第二骨干交换机后再将数据传递到第二防火墙,网关设置到第二防火墙上,经过第二防火墙做策略对信号、通信及互联网数据进行相互隔离后再回传到第二骨干交换机,通过第二骨干交换机到达LTE核心网,通过光纤到轨旁基站即第二基站经无线网络传递到列车上。As shown in FIG. 6 and FIG. 7, the second communication signal subsystem part of the terrestrial network system includes a trackside passenger service system, a trackside train automatic control system, and the Internet. The ZC, CI, ATS and other systems in the track-side train automatic control system can be connected to the second backbone switch through their respective corresponding signal access switches, PIS, CCTV, passenger broadcasting system, emergency call in the trackside passenger service system. The system can be connected to the second backbone switch through the communication access switch, and the introduced Internet signal is only used for the onboard passengers to access the Internet, and directly accesses the second firewall. After all the above service data reaches the second backbone switch, the data is transmitted to the second firewall, and the gateway is set to the second firewall, and the second firewall is used as a policy to isolate the signal, the communication, and the Internet data, and then return to the second. The backbone switch reaches the LTE core network through the second backbone switch, and is transmitted to the train through the optical network to the track-side base station, that is, the second base station.
如图6和图8所示,所述地面网络系统的第一信号子系统部分,包括轨旁列车自动控制系统。轨旁列车自动控制系统中的ZC、CI、ATS等系统可以通过各自分别对应的第一交换机连接到第一骨干交换机上,以上所有业务数据达到第一骨干交换机后再将数据传递到第一防火墙,经过第一防火墙做策略进行数据隔离后再回传到第一骨干交换机,通过第一骨干交换机到达LTE核心网,通过光纤到轨旁基站即第一基站经无线网络传递到列车上。As shown in Figures 6 and 8, the first signal subsystem portion of the terrestrial network system includes a trackside train automatic control system. The ZC, CI, ATS and other systems in the track-side train automatic control system can be connected to the first backbone switch through the respective first switches, and all the above service data reaches the first backbone switch and then the data is transmitted to the first firewall. After the data is isolated by the first firewall, the data is isolated and transmitted to the first backbone switch, and reaches the LTE core network through the first backbone switch, and is transmitted to the train through the optical network to the track-side base station, that is, the first base station.
如图3、图6和图9所示,车载网络系统中,第二车载接入单元TAU2设置在列车一端,第一车载接入单元TAU1设置在列车另一端,车载无线局域网设备分别设置在列车的每个车厢内,车载控制设备、车载乘客服务设备中的PIS、CCTV、广播设备、紧急呼叫设备、第二车载交换机均设置在同一机柜中,且以设置在列车一端机柜为例。其中,各车载乘客服务设备通过第三车载交换机连接第二车载交换机,车载无线局域网设备及车载控制设备直接连接第二车载交换机。车载部分网关设置在第一车载接入单元和第二车载接入单元上,地面数据传输到列车上后,由第一车载接入单元和第二车载接入单元下发到相应系统。As shown in FIG. 3, FIG. 6, and FIG. 9, in the in-vehicle network system, the second in-vehicle access unit TAU2 is disposed at one end of the train, the first in-vehicle access unit TAU1 is disposed at the other end of the train, and the in-vehicle wireless local area network device is respectively disposed on the train. In each of the cars, the vehicle control device, the PIS, the CCTV, the broadcasting device, the emergency call device, and the second vehicle-mounted switch in the vehicle passenger service device are all disposed in the same cabinet, and the cabinet is disposed at one end of the train as an example. The vehicle-mounted passenger service device is connected to the second vehicle-mounted switch through the third vehicle-mounted switch, and the vehicle-mounted wireless LAN device and the vehicle-mounted control device are directly connected to the second vehicle-mounted switch. The vehicle-mounted partial gateway is disposed on the first in-vehicle access unit and the second in-vehicle access unit. After the ground data is transmitted to the train, the first in-vehicle access unit and the second in-vehicle access unit are delivered to the corresponding system.
通过地面网络系统及车载网络系统,使得轨旁列车自动控制系统依靠LTE-U网络实现各种车辆控制,车载乘客服务系统利用LTE-U网络实现组播及视频回传的功能,每节车厢的车载无线局域网设备分别连接到第二车载交换机上,由第二车载交换机进行数据传输和以太网(Power Over Ethernet,简称POE)供电,上网业务由互联网提供。虽然上网业务占用LTE-U网络的吞吐量,但因LTE-U网络具有较高的吞吐能力,因此可以满足上网需求。Through the terrestrial network system and the vehicle network system, the trackside train automatic control system relies on the LTE-U network to realize various vehicle control, and the vehicle passenger service system utilizes the LTE-U network to realize the function of multicast and video return, each car compartment The in-vehicle wireless LAN devices are respectively connected to the second in-vehicle switch, and the second in-vehicle switch performs data transmission and Power Over Ethernet (POE) power supply, and the Internet service is provided by the Internet. Although the Internet service occupies the throughput of the LTE-U network, the LTE-U network has a high throughput capacity, so it can meet the Internet access requirements.
由此,本发明实施例的轨道交通综合承载系统,可以实现列车的综合承载及乘客上网业务。由于该综合承载系统基于的LTE-U网络的频段免授权,无需授权即可使用,传输距 离远,抗干扰能力强,安全性高,高速移动(最高支持160kM/h)环境中可以支持车地之间的双向移动通信,因此,该综合承载系统的网络抗干扰能力强,传输距离远,且在高速移动时仍然可以承载车地综合系统的通信及乘客上网业务,提高了通信的可靠性。Therefore, the rail transit integrated carrying system of the embodiment of the invention can realize the comprehensive carrying of the train and the passenger online service. Because the frequency band of the LTE-U network based on the integrated bearer system is exempt from authorization, it can be used without authorization, with long transmission distance, strong anti-interference ability, high security, and high-speed mobile (up to 160kM/h) environment. The two-way mobile communication between the two, therefore, the integrated bearer system has strong anti-interference ability, long transmission distance, and can still carry the communication of the vehicle integrated system and the passenger online service when moving at high speed, thereby improving the reliability of communication.
本发明实施例提供的轨道交通综合承载系统,基于LTE-U网络,只需两个通信信号回路,即可实现列车的综合承载及乘客上网业务,不仅网络简单,设备数量少,成本低,而且网络的抗干扰能力强,传输距离远,且在高速移动时可以承载车地综合系统的通信及乘客上网业务,提高了通信的可靠性。The rail transit integrated bearer system provided by the embodiment of the invention is based on the LTE-U network, and only needs two communication signal loops to realize the comprehensive bearer of the train and the passenger online service, which is not only simple in network, small in number of devices, and low in cost, and The network has strong anti-interference ability, long transmission distance, and can carry the communication of the vehicle integrated system and the passenger online service when moving at high speed, which improves the reliability of communication.
在本说明书的描述中,参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material, or feature is included in at least one embodiment or example of the present disclosure.
流程图中或在此以其他方式描述的任何过程或方法描述可以被理解为,表示包括一个或更多个用于实现特定逻辑功能或过程的步骤的可执行指令的代码的模块、片段或部分,并且本公开的优选实施方式的范围包括另外的实现,其中可以不按所示出或讨论的顺序,包括根据所涉及的功能按基本同时的方式或按相反的顺序,来执行功能,这应被本公开的实施例所属技术领域的技术人员所理解。Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a particular logical function or process. And the scope of the preferred embodiments of the present disclosure includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in an inverse order depending on the functions involved, in the order shown or discussed. It will be understood by those skilled in the art to which the embodiments of the present disclosure pertain.
应当理解,本公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中,多个步骤或方法可以用存储在存储器中且由合适的指令执行装置执行的软件或固件来实现。例如,如果用硬件来实现,和在另一实施方式中一样,可用本领域公知的下列技术中的任一项或他们的组合来实现:具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路,具有合适的组合逻辑门电路的专用集成电路,可编程门阵列(PGA),现场可编程门阵列(FPGA)等。It should be understood that portions of the present disclosure can be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution device. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: having logic gates for implementing logic functions on data signals. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.
本技术领域的普通技术人员可以理解实现上述实施例方法携带的全部或部分步骤是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可读存储介质中,该程序在执行时,包括方法实施例的步骤之一或其组合。One of ordinary skill in the art can understand that all or part of the steps carried by the method of implementing the above embodiments can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, one or a combination of the steps of the method embodiments is included.
此外,在本公开各个实施例中的各功能单元可以集成在一个第一处理模块中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。所述集成的模块如果以软件功能模块的形式实现并作为独立的产品销售或使用时,也可以存储在一个计算机可读取存储介质中。In addition, each functional unit in various embodiments of the present disclosure may be integrated into one first processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. The integrated modules, if implemented in the form of software functional modules and sold or used as stand-alone products, may also be stored in a computer readable storage medium.
上述提到的存储介质可以是只读存储器,磁盘或光盘等。尽管上面已经示出和描述了本公开的实施例,可以理解的是,上述实施例是示例性的,不能理解为对本公开的限制, 本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like. While the embodiments of the present disclosure have been shown and described above, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the disclosure The embodiments are subject to variations, modifications, substitutions and variations.

Claims (12)

  1. 一种轨道交通综合承载系统,其特征在于,包括:第一信号子系统及第二通信信号子系统;An integrated rail transit system, comprising: a first signal subsystem and a second communication signal subsystem;
    所述第一信号子系统,用于通过LTE-U网络实现轨旁列车自动控制系统与车载控制设备间的通信;The first signal subsystem is configured to implement communication between the automatic control system of the trackside train and the vehicle control device through the LTE-U network;
    所述第二通信信号子系统,用于通过LTE-U网络实现轨旁乘客服务系统与车载乘客服务设备间的通信、车载无线局域网与互联网间的通信、及轨旁列车自动控制系统与车载控制设备间的通信。The second communication signal subsystem is configured to implement communication between a trackside passenger service system and an in-vehicle passenger service device, communication between a vehicle-mounted wireless local area network and the Internet, and an automatic control system for on-track trains and on-board control through an LTE-U network Communication between devices.
  2. 如权利要求1所述的综合承载系统,其特征在于,所述第一信号子系统,包括:依次通信连接的轨旁列车自动控制系统、第一交换机、第一基站、第一基站天线、第一车载天线、第一车载接入单元、第一车载交换机及车载控制设备,其中,所述第一基站天线与所述第一车载天线的工作频段为LET-U频段。The integrated carrier system according to claim 1, wherein the first signal subsystem comprises: a track-side train automatic control system sequentially connected in communication, a first switch, a first base station, a first base station antenna, and a first An in-vehicle antenna, a first in-vehicle access unit, a first in-vehicle switch, and an in-vehicle control device, wherein a working frequency band of the first base station antenna and the first vehicle antenna is a LET-U frequency band.
  3. 如权利要求2所述的综合承载系统,其特征在于,所述轨旁列车自动控制系统,包括列车自动监控系统、区域控制器及计算机连锁系统,其中,所述列车自动监控系统、区域控制器及计算机连锁系统分别与所述第一交换机通信连接。The integrated carrying system according to claim 2, wherein said trackside automatic control system comprises a train automatic monitoring system, a zone controller and a computer interlocking system, wherein said train automatic monitoring system and zone controller And a computer chain system is in communication with the first switch.
  4. 如权利要求2或3所述的综合承载系统,其特征在于,所述第一信号子系统还包括:分别与所述第一交换机及所述第一基站连接的第一光电转换设备。The integrated bearer system according to claim 2 or 3, wherein the first signal subsystem further comprises: a first photoelectric conversion device respectively connected to the first switch and the first base station.
  5. 如权利要求2-4任一所述的综合承载系统,其特征在于,所述第二通信信号子系统,包括:第二交换机;The integrated bearer system according to any one of claims 2 to 4, wherein the second communication signal subsystem comprises: a second switch;
    分别与所述第二交换机通信连接的轨旁列车自动控制系统、轨旁乘客服务系统、互联网及第二基站;a trackside train automatic control system, a trackside passenger service system, an internet, and a second base station respectively connected to the second switch;
    与所述第二基站依次通信连接的第二基站天线、第二车载天线、第二车载接入单元及第二车载交换机;a second base station antenna, a second vehicle antenna, a second vehicle access unit, and a second vehicle-mounted switch that are in communication with the second base station;
    分别与所述第二车载交换机通信连接的车载控制设备、车载乘客服务设备及车载无线局域网设备,其中,所述第二基站天线与所述第二车载天线的工作频段为LET-U频段。An in-vehicle control device, an in-vehicle passenger service device, and an in-vehicle wireless local area network device respectively connected to the second in-vehicle switch, wherein a working frequency band of the second base station antenna and the second vehicle antenna is a LET-U frequency band.
  6. 如权利要求5所述的综合承载系统,其特征在于,所述第二交换机包括通信接入交换机及至少一个信号接入交换机;The integrated bearer system of claim 5, wherein the second switch comprises a communication access switch and at least one signal access switch;
    所述通信接入交换机与所述轨旁乘客服务系统通信连接;The communication access switch is in communication connection with the trackside passenger service system;
    所述至少一个信号接入交换机与所述轨旁列车自动控制系统通信连接。The at least one signal access switch is in communication with the trackside train automatic control system.
  7. 如权利要求6所述的综合承载系统,其特征在于,所述轨旁列车自动控制系统包括 列车自动监控系统、区域控制器及计算机连锁系统;The integrated carrying system according to claim 6, wherein said trackside automatic control system comprises an automatic train monitoring system, a regional controller and a computer interlocking system;
    所述列车自动监控系统、区域控制器及计算机连锁系统分别与一个信号接入交换机通信连接。The train automatic monitoring system, the area controller and the computer interlocking system are respectively connected in communication with a signal access switch.
  8. 如权利要求5所述的综合承载系统,其特征在于,所述车载乘客服务设备包括乘客信息设备、闭路电视监控设备、广播设备及紧急呼叫设备;The integrated carrying system according to claim 5, wherein said in-vehicle passenger service device comprises a passenger information device, a closed circuit television monitoring device, a broadcasting device, and an emergency calling device;
    所述第二通信信号子系统还包括:第三车载交换机;The second communication signal subsystem further includes: a third in-vehicle switch;
    所述第三车载交换机分别与所述第二车载交换机及所述乘客信息设备、所述闭路电视监控设备、所述广播设备连接及所述紧急呼叫设备连接。The third in-vehicle switch is respectively connected to the second in-vehicle switch and the passenger information device, the closed-circuit television monitoring device, the broadcast device, and the emergency call device.
  9. 如权利要求5-8任一所述的综合承载系统,其特征在于,所述车载控制设备、车载乘客服务设备及所述第二车载交换机同时设置在所述列车的任一机柜中;所述车载无线局域网设备分别设置在列车的每个车厢内。The integrated carrying system according to any one of claims 5-8, wherein said in-vehicle control device, in-vehicle passenger service device and said second in-vehicle switch are simultaneously disposed in any one of said trains; The in-vehicle wireless LAN devices are respectively disposed in each of the trains.
  10. 如权利要求5-9任一所述的综合承载系统,其特征在于,所述第二通信信号子系统,还包括:分别与所述第二交换机及所述第二基站连接的第二光电转换设备。The integrated bearer system according to any one of claims 5-9, wherein the second communication signal subsystem further comprises: a second photoelectric conversion respectively connected to the second switch and the second base station device.
  11. 如权利要求5-10任一所述的综合承载系统,其特征在于,所述综合承载系统,还包括分别与所述第一交换机、所述第二交换机及所述互联网连接的防火墙。The integrated bearer system according to any one of claims 5 to 10, wherein the integrated bearer system further comprises a firewall connected to the first switch, the second switch, and the Internet, respectively.
  12. 如权利要求11所述综合承载系统,其特征在于,所述综合承载系统,还包括骨干交换机;The integrated bearer system according to claim 11, wherein the integrated bearer system further comprises a backbone switch;
    所述骨干交换机分别与所述第一交换机、所述第二交换机、及所述防火墙连接。The backbone switch is respectively connected to the first switch, the second switch, and the firewall.
PCT/CN2019/070978 2018-01-09 2019-01-09 Comprehensive bearing system for track transport WO2019137395A1 (en)

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