CN113212496A - Vehicle-mounted communication device and method for rail transit multimode fusion - Google Patents
Vehicle-mounted communication device and method for rail transit multimode fusion Download PDFInfo
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- CN113212496A CN113212496A CN202110286720.9A CN202110286720A CN113212496A CN 113212496 A CN113212496 A CN 113212496A CN 202110286720 A CN202110286720 A CN 202110286720A CN 113212496 A CN113212496 A CN 113212496A
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- 238000004891 communication Methods 0.000 title claims abstract description 62
- 230000004927 fusion Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 9
- PLAIAIKZKCZEQF-UHFFFAOYSA-N methyl 6-chloro-2-oxo-3h-1,2$l^{4},3-benzodithiazole-4-carboxylate Chemical compound COC(=O)C1=CC(Cl)=CC2=C1NS(=O)S2 PLAIAIKZKCZEQF-UHFFFAOYSA-N 0.000 claims 8
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
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- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000002265 prevention Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0018—Communication with or on the vehicle or train
- B61L15/0027—Radio-based, e.g. using GSM-R
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/70—Details of trackside communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/42—Services 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L2205/00—Communication or navigation systems for railway traffic
- B61L2205/02—Global system for mobile communication - railways [GSM-R]
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- Aviation & Aerospace Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The invention relates to a vehicle-mounted communication device and a method for rail transit multimode fusion, wherein the device is respectively connected with CTCS (China train control System) trackside signal equipment and CBTC (communication train control) trackside signal equipment, the vehicle-mounted communication device comprises an interface module, a data packet system judging module, a WiFi/LTE-M/5G module and a GSM-R/5G-R module, the data packet system judging module is respectively connected with the interface module, the WiFi/LTE-M/5G module and the GSM-R/5G-R module, the WiFi/LTE-M/5G module is connected with the CBTC trackside signal equipment, and the GSM-R/5G-R module is connected with the CTCS trackside signal equipment. Compared with the prior art, the invention has the advantages of compatibility with various signal systems and communication standards, high utilization rate and the like.
Description
Technical Field
The invention relates to a train signal control system, in particular to a vehicle-mounted communication device and method for rail transit multimode fusion.
Background
In recent years, a CBTC signal system is widely adopted in domestic subway lines, and compared with a traditional fixed blocking mode signal system, the CBTC signal system adopts a mobile block to realize higher operation efficiency. The CBTC system now has a train-ground wireless communication system using WiFi standard and LTE-M standard (1.8GHz dedicated band), and later has a train-ground wireless communication system using 5G standard.
The CTCS signal system widely adopted by domestic railways mainly comprises CTCS-2 and CTCS-3 level train control systems, and meets the requirements of automatic operation adjustment of train overspeed protection trains, automatic driving of trains, accurate positioning and parking of platforms, protection and linkage control of train doors and platform doors, flood prevention doors, emergency closing protection of platforms and the like. The CTCS signal system adopts a wireless network of the GSM-R standard to realize ATO vehicle-ground two-way communication, meets the automatic driving function of the train, and adopts a wireless network of the 5G-R standard later.
A city (suburban) railway is a rail transit with a range of services, technical features and transportation organizations between national railways and conventional subways (light rails). The urban area signal system STCS is a C2 compatible mobile block system and has the functions of interconnection and intercommunication CBTC, and can realize interconnection and intercommunication cross-line and collinear operation with a national railway C2 line and also can realize interconnection and operation with an urban rail line.
The existing train-ground wireless communication system can only operate in a single GSM-R network or a single LTE-M network and a WiFi network, cannot operate in a network in which GSM-R and LTE-M, WiFi are alternately deployed or are deployed in a mixed mode, and cannot support interconnection and intercommunication of a suburban (suburban) railway signal system, a state railway system and a subway system. In addition, the existing train-ground wireless communication system does not support 5G and 5G-R networks, and can not meet the requirement of future technical development.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a vehicle-mounted communication device and method for rail transit multimode fusion.
The purpose of the invention can be realized by the following technical scheme:
according to one aspect of the invention, the vehicle-mounted communication device for rail transit multimode fusion is respectively connected with CTCS (China train control system) trackside signal equipment and CBTC (communication train control system) trackside signal equipment, and comprises an interface module, a data packet type judging module, a WiFi/LTE-M/5G module and a GSM-R/5G-R module, wherein the data packet type judging module is respectively connected with the interface module, the WiFi/LTE-M/5G module and the GSM-R/5G-R module, the WiFi/LTE-M/5G module is connected with the CBTC trackside signal equipment, and the GSM-R/5G-R module is connected with the CTCS trackside signal equipment.
As a preferable technical scheme, the WiFi/LTE-M/5G module is a communication module which simultaneously supports WiFi, LTE-M and 5G,
as a preferable technical scheme, the WiFi/LTE-M/5G module is connected with the CBTC trackside signal equipment through a WiFi, LTE-M or 5G communication link.
As a preferable technical scheme, the CBTC trackside signal equipment is connected with a WiFi, LTE-M or 5G communication link through WiFi/LTE-M/5G network system equipment.
As a preferred technical scheme, the GSM-R/5G-R module is a communication module which simultaneously supports GSM-R and 5G-R.
As a preferable technical scheme, the GSM-R/5G-R module is connected with the CTCS trackside signal equipment through a GSM-R or 5G-R communication link.
As a preferred technical scheme, the CTCS trackside signal equipment is connected with a GSM-R or 5G-R communication link through GSM-R/5G-R network system equipment.
As a preferable technical scheme, the data packet system judging module selects to send the data packet to the CTCS trackside signal device through the GSM-R/5G-R module or to the CBTC trackside signal device through the WiFi/LTE-M/5G module according to the length of the received vehicle-mounted signal device data packet, the signal system type of the data packet, and the signal system ID.
As a preferred technical scheme, the interface module is connected with the vehicle-mounted signal equipment, the wireless network of the ground signal system keeps the existing scheme unchanged, and the smooth upgrading of the signal system can be realized by changing the vehicle-mounted communication device.
According to another aspect of the invention, a communication method for the vehicle-mounted communication device for rail transit multimode fusion is provided, and the method comprises the following steps:
step 101, the vehicle-mounted communication device establishes a GSM-R/5G-R network link by using a GSM-R/5G-R module, establishes a WiFi/LTE-M/5G network link by using a WiFi/LTE-M/5G module, and then executes step 102;
102, after receiving a data packet sent by the vehicle-mounted signal equipment, the data packet system judging module judges whether the data packet is sent to the CTCS system or the CBTC system according to the length of the data packet, the signal system type of the data packet and the signal system ID, if the data packet is sent to the CBTC system, executing step 403, and if the data packet is sent to the CTCS system, executing step 404;
and step 404, transmitting the data packet to the CTCS trackside signal device through the GSM-R/5G-R network system by the GSM-R/5G-R module.
Compared with the prior art, the invention has the following advantages:
(1) the vehicle-mounted communication equipment disclosed by the invention comprises a GSM-R/5G-R standard wireless module and a WiFi/LTE-M/5G standard wireless module, can support wireless network access of two standards, and can simultaneously provide two communication channels conforming to the CTCS standard and the CBTC standard for the vehicle-mounted signal equipment.
(2) The vehicle-mounted communication equipment can be simultaneously accessed into two wireless networks, the vehicle-mounted signal equipment can be reused, and two sets of vehicle-mounted signal equipment are not required to be installed on a train.
(3) The scheme is convenient to implement, the wireless network of the ground signal system keeps the existing scheme unchanged, and the smooth upgrading of the existing signal system scheme can be realized only by changing the vehicle-mounted communication equipment.
Drawings
FIG. 1 is a schematic diagram of a data forwarding process according to the present invention;
FIG. 2 is a schematic structural diagram of the apparatus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention discloses a rail transit multimode vehicle-ground communication fusion technology, which mainly aims to provide a vehicle-ground wireless communication channel fusing multiple wireless communication standards for a signal system and realize the switching of communication channels of different standards according to the requirement that the signal system is compatible with multiple signal standards. The invention adopts a set of GSM-R/5G-R communication module suitable for CTCS and a set of WiFi/LTE-M/5G communication module suitable for CBTC in the vehicle-mounted communication equipment, and respectively and independently completes the establishment of a vehicle-ground wireless link and maintains the link state information; after receiving data of a signal system vehicle-mounted unit, vehicle-mounted communication equipment selects a corresponding wireless link according to the data type to transmit the data, wherein CTCS data uses a GSM-R/5G-R network wireless link, and CBTC data uses a WiFi/LTE-M/5G network wireless link; the ground GSM-R/5G-R network is connected with the CTCS signal system, and the WiFi/LTE-M/5G network is connected with the CBTC system.
Fig. 1 shows a specific data forwarding flow of the present invention, which shows a data forwarding flow of a vehicle-to-local direction of a vehicle-mounted communication device at one end of a train, where the data forwarding flow of the vehicle-to-local direction is the same as that in fig. 1, and only the data transmission direction is different. The scheme can realize that the vehicle-mounted signal equipment is simultaneously accessed into the CBTC system and the CTCS system through the vehicle-mounted communication equipment, provides a train-ground data channel for the vehicle-mounted signal equipment to be compatible with two systems of signal systems, and can support interconnection and intercommunication of a suburb railway signal system, a state railway system and a subway system. The following describes the steps of data forwarding in detail with reference to fig. 2:
as shown in FIG. 2, the vehicle-mounted communication equipment of the invention internally comprises a WiFi/LTE-M/5G module and a GSM-R/5G-R module, simultaneously accesses a CBTC system and a CTCS system, and selects to send a data packet to the CTCS system through a GSM-R/5G-R link or to the CBTC system through a WiFi/LTE-M/5G link according to the length of the received vehicle-mounted signal equipment data packet, the signal system type of the data packet and the signal system ID. Through the vehicle-mounted communication equipment, the vehicle-mounted signal equipment can be simultaneously accessed to a signal system compatible with a CBTC system and a CTCS system, and interconnection and intercommunication of a suburban (suburban) railway signal system, a state railway system and a subway system are supported.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A vehicle-mounted communication device for rail transit multimode fusion is characterized by being respectively connected with CTCS (China train control system) trackside signal equipment and CBTC trackside signal equipment, and comprising an interface module, a data packet type judging module, a WiFi/LTE-M/5G module and a GSM-R/5G-R module, wherein the data packet type judging module is respectively connected with the interface module, the WiFi/LTE-M/5G module and the GSM-R/5G-R module, the WiFi/LTE-M/5G module is connected with the CBTC trackside signal equipment, and the GSM-R/5G-R module is connected with the CTCS trackside signal equipment.
2. The vehicle-mounted communication device for rail transit multimode convergence according to claim 1, wherein the WiFi/LTE-M/5G module is a communication module supporting WiFi, LTE-M and 5G simultaneously.
3. The vehicle-mounted communication device for rail transit multimode convergence according to claim 1 or 2, wherein the WiFi/LTE-M/5G module is connected with CBTC trackside signal equipment through a WiFi, LTE-M or 5G communication link.
4. The vehicle-mounted communication device for rail transit multimode convergence according to claim 3, wherein the CBTC trackside signal equipment is connected with a WiFi, LTE-M or 5G communication link through WiFi/LTE-M/5G network system equipment.
5. The vehicle-mounted communication device for rail transit multimode convergence according to claim 1, wherein the GSM-R/5G-R module is a communication module supporting both GSM-R and 5G-R.
6. The vehicle-mounted communication device for rail transit multimode fusion according to claim 1 or 5, wherein the GSM-R/5G-R module is connected with a CTCS trackside signal device through a GSM-R or 5G-R communication link.
7. The on-board communication device for rail transit multimode convergence according to claim 6, wherein the CTCS trackside signal equipment is connected with a GSM-R or 5G-R communication link through a GSM-R/5G-R network system equipment.
8. The vehicle-mounted communication device for rail transit multimode fusion as claimed in claim 1, wherein the packet system discrimination module selects to send the packet to the CTCS trackside signal device through the GSM-R/5G-R module or to the CBTC trackside signal device through the WiFi/LTE-M/5G module according to the length of the received vehicle-mounted signal device packet, the signal system type of the packet, and the signal system ID.
9. The vehicle-mounted communication device for rail transit multimode fusion as claimed in claim 1, wherein the interface module is connected with a vehicle-mounted signal device, a wireless network of a ground signal system is kept unchanged in an existing scheme, and smooth upgrade of the signal system can be realized by changing the vehicle-mounted communication device.
10. A communication method for the vehicle-mounted communication device for rail transit multimode fusion according to claim 1, characterized by comprising the following steps:
step 101, the vehicle-mounted communication device establishes a GSM-R/5G-R network link by using a GSM-R/5G-R module, establishes a WiFi/LTE-M/5G network link by using a WiFi/LTE-M/5G module, and then executes step 102;
102, after receiving a data packet sent by the vehicle-mounted signal equipment, the data packet system judging module judges whether the data packet is sent to the CTCS system or the CBTC system according to the length of the data packet, the signal system type of the data packet and the signal system ID, if the data packet is sent to the CBTC system, executing step 403, and if the data packet is sent to the CTCS system, executing step 404;
step 403, transmitting the data packet to the CBTC trackside signal device through the WiFi/LTE-M/5G network system by the WiFi/LTE-M/5G module;
and step 404, transmitting the data packet to the CTCS trackside signal device through the GSM-R/5G-R network system by the GSM-R/5G-R module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110286720.9A CN113212496A (en) | 2021-03-17 | 2021-03-17 | Vehicle-mounted communication device and method for rail transit multimode fusion |
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| CN202110286720.9A CN113212496A (en) | 2021-03-17 | 2021-03-17 | Vehicle-mounted communication device and method for rail transit multimode fusion |
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| CN111688767A (en) * | 2020-06-17 | 2020-09-22 | 中国国家铁路集团有限公司 | Method for superposing CTCS (China train control System) system and CBTC (communication based train control) system |
| CN112235879A (en) * | 2020-11-16 | 2021-01-15 | 北京交通大学 | Railway train control dual-mode wireless terminal and implementation method |
-
2021
- 2021-03-17 CN CN202110286720.9A patent/CN113212496A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162548A (en) * | 2007-01-04 | 2008-07-17 | Nippon Signal Co Ltd:The | Radio train control system |
| CN102092407A (en) * | 2010-12-09 | 2011-06-15 | 北京全路通信信号研究设计院 | Online monitoring system of CTCS-3 grade train control system |
| CN102267477A (en) * | 2011-05-16 | 2011-12-07 | 北京全路通信信号研究设计院有限公司 | Temporary speed-restricting command sending method and device of C3 system |
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Application publication date: 20210806 |