CN108848481A - A kind of CTCS-3 grade column control vehicle-mounted wireless communication system based on LTE-R packet switching network - Google Patents
A kind of CTCS-3 grade column control vehicle-mounted wireless communication system based on LTE-R packet switching network Download PDFInfo
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- CN108848481A CN108848481A CN201810646067.0A CN201810646067A CN108848481A CN 108848481 A CN108848481 A CN 108848481A CN 201810646067 A CN201810646067 A CN 201810646067A CN 108848481 A CN108848481 A CN 108848481A
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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]
- H04W4/48—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for in-vehicle communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/18—Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/26—Special purpose or proprietary protocols or architectures
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W12/00—Security arrangements; Authentication; Protecting privacy or anonymity
- H04W12/02—Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
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Abstract
The invention discloses a kind of CTCS-3 grade column control vehicle-mounted wireless communication system based on LTE-R packet switching network comprising：Guard plate, non-security plate and data board；Guard plate realizes the safe floor and security algorithm function of the communication protocol based on LTE-R open network；Guard plate is connected by relevant interface with ATP, receives the connection management order that ATP is sent, and interact wireless information with ATP；Non-security plate, realizes ALE sublayer, TCP/IP and the ppp protocol stack function of the communication protocol based on LTE-R open network, and realizes key and configuration parameter management, the radio station LTE-R control function；Non-security plate also passes through relevant interface and is connected with the radio station LTE-R, sends control instruction, and interactive service data to the radio station LTE-R, data board receives the log information that guard plate and non-security plate are sent and preservation.The system can support the radio station LTE-R, and be applicable in LTE-R network, can be used for carrying CTCS-3 grades of train control system wireless datas；In addition, scheme, this system only need the radio station LTE-R that its function can be completed compared with the prior art.
Description
Technical field
The present invention relates to Source of Railway Communication and Signalling technical fields more particularly to a kind of based on LTE-R packet switching network
CTCS-3 grades of column control vehicle-mounted wireless communication systems.
Background technique
In CTCS-3 grades of train control systems of China Railway High-speed, ground RBC equipment be responsible for generate driving grant message and by its
It is sent to vehicle-mounted ATP equipment, to control train operation.The ATP equipment currently runed is all made of the radio station GSM-R, utilizes GSM-R
Circuit-switched network is communicated with RBC equipment.CTCS-3 grades of wireless communication system architecture schematic diagrams are as shown in Figure 1.
The wireless communication system of existing CTCS-3 grades of column control is to use the radio station GSM-R, and be based on GSM-R circuit switching
Network is communicated with RBC, and communication protocol has included safe floor (ERTMS ETCS subset-037V2.3.0), transport layer
(ITU-T is X.224TP2), network layer (ITU-T T.70CSPDN header), link layer (ISO 7776HDLC), physical layer
(GSM-R) etc..After ATP and RBC establishes connection, exclusive distributed GSM-R circuit domain time slot and wireless channel for a long time are needed, directly
Link could be discharged to the interruption of RBC wireless session.In order to complete the handoff procedure with two RBC, existing in-vehicle wireless communication
System is needed using 2 radio station GSM-R, and each radio station is responsible for being communicated with one of RBC.
But GSM-R circuit switched networks are the exclusive circuit domain time slot of CTCS-3 grades of Train Control traffic assignments and nothing
Line channel it reduce the capacity of whole system and can carry user volume；GSM-R circuit-switched network transmission rate is lower, wave
Special rate is usually 2400,4800 or 9600；In addition it is also limited by GSM-R system capability.In addition, the life cycle of GSM-R network
It will terminate in 2025, all manufacturers will stop the maintenance of GSM-R network equipment.
LTE-R will be used to carry CTCS-3 grades of train control system business, therefore existing as next-generation Railroad Communication System
Wireless communication system will be unable to continue to serve CTCS-3 grades etc. of train control system.
Summary of the invention
The CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network that the object of the present invention is to provide a kind of
System.
The purpose of the present invention is what is be achieved through the following technical solutions：
A kind of CTCS-3 grade column control vehicle-mounted wireless communication system based on LTE-R packet switching network, including：Guard plate,
Non-security plate and data board；Wherein：
The guard plate is connected with non-security plate, and the non-security plate sends key information and configuration parameter letter to guard plate
Breath, and with the interacting vehicle information with guard plate；Guard plate and non-security plate are connected with data board, receive guard plate by data board
The log information sent with non-security plate and preservation；
The guard plate realizes the safe floor and security algorithm function of the communication protocol based on LTE-R open network；Safety
Plate is connected by relevant interface with ATP, receives the connection management order that ATP is sent, and interact wireless information with ATP；
The non-security plate realizes ALE sublayer, TCP/IP and the ppp protocol of the communication protocol based on LTE-R open network
Stack function, and realize key and configuration parameter management, the radio station LTE-R control function；Non-security plate also pass through relevant interface with
The radio station LTE-R is connected, and sends control instruction, and interactive service data to the radio station LTE-R.
As seen from the above technical solution provided by the invention, it can support the radio station LTE-R, and be applicable in LTE-R network；
It can be used for carrying CTCS-3 grades of train control system wireless datas；In addition, the technical solution in two radio station GSM-R of existing need relatively,
This system only needs the radio station LTE-R that its function can be completed.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the CTCS-3 grade wireless communication system architecture schematic diagram that background of invention provides；
Fig. 2 be a kind of CTCS-3 grade column control vehicle-mounted based on LTE-R packet switching network provided in an embodiment of the present invention without
The schematic diagram of line communication system；
Fig. 3 is the schematic diagram of guard plate provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of non-security plate provided in an embodiment of the present invention.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
In order to allow CTCS-3 grades of ATP mobile units and RBC equipment that can be suitable for LTE-R network, and can replace
Existing mobile unit, the embodiment of the present invention provide a kind of CTCS-3 grade column control vehicle-mounted based on LTE-R packet switching network without
Line communication system.The system can substitute the wireless communication system of existing CTCS-3 grades of ATP mobile unit, be allowed to set with RBC
It is standby to establish connection, carry out the interaction of column control related data；The system is based on LTE-R packet switching network, merely with one
The radio station LTE-R can be established with two RBC and be wirelessly connected, and complete RBC hand-over.
As shown in Fig. 2, the system mainly includes：Guard plate, non-security plate and data board；Wherein：
The guard plate is connected with non-security plate, and the non-security plate sends key information and configuration parameter letter to guard plate
Breath, and with the interacting vehicle information with guard plate；Guard plate and non-security plate are connected with data board, receive guard plate by data board
The log information sent with non-security plate and preservation；
The guard plate realizes the safe floor and security algorithm function of the communication protocol based on LTE-R open network；Safety
Plate is connected by relevant interface with ATP, receives the connection management order that ATP is sent, and interact wireless information with ATP；
The non-security plate realizes ALE sublayer, TCP/IP and the ppp protocol of the communication protocol based on LTE-R open network
Stack function, and realize key and configuration parameter management, the radio station LTE-R control function；Non-security plate also with by relevant interface with
The radio station LTE-R is connected, and sends control instruction, and interactive service data to the radio station LTE-R.
The system further includes, for providing the power panel of power supply for guard plate, non-security plate and data board；And to mention
The backboard of connecting interface is provided for each board of internal system.
The size of system and each board is illustratively provided below.
The overall size of system is：Wide 19TE, high 3U, deep 160mm.
Each board size is as follows：
Guard plate 4TE, 3U, 160mm；
Non-security plate 4TE, 3U, 160mm；
Data board 4TE, 3U, 160mm；
Power panel 7TE, 3U, 160mm；
Backboard 19TE, 3U.
1~interface of interface 2 as shown in Figure 2 is the interface of system and external equipment：
Interface 1：RS422, the interface with ATP
Interface 2：RS422, with interstation ILTE-RInterface.
The interface of 3~interface of interface 6 as shown in Figure 2 between each board of internal system, these interfaces are all made of backboard
RS422 interface mode：
Interface 3：Communication interface between guard plate and non-security plate.
Interface 4：Interface between guard plate and data board.
Interface 5 and 6：Interface between non-security plate and data board.
Detailed introduction is done below for board each in system.
In the embodiment of the present invention, non-security plate and guard plate are all feature boards, and plate provides status indicator lamp, application in front
Software runs on MCU chip, and uses real time operating system.
Application software provides task schedule and overtime monitoring function, and application task dispatching cycle is 100ms, and the period transports
The row time must not time-out.In order to not influence the application task cycle of operation as far as possible, the input and output of each interface of RS422 are all made of
Dma mode is realized.
1, guard plate
The primary structure of guard plate is as shown in figure 3, it mainly includes：ATP communication protocol module, safety function module connect
Mouth, safe floor, the first data collection are communicated with distribution module, security algorithm interface module, security algorithm library module and first
Protocol module；
Wherein, the corresponding connection ATP of ATP communication protocol module, the first communication protocol module, non-security plate；ATP communication protocols
Discuss module, safety function module interface, the first data collection and distribution module, security algorithm interface module and security algorithm library mould
Block is sequentially connected；First data collection is also connected with safe floor and the first communication protocol module with distribution module；
Further include：The first log module being connected with above-mentioned each module and first task management and overtime monitoring module, institute
The first log module is stated also to be connected with data board.
As previously mentioned, guard plate mainly realizes the safe floor and security algorithm of the communication protocol based on LTE-R open network
Function；The connection management order that ATP is sent also is received, and interacts wireless information with ATP.
In the embodiment of the present invention, the first log module and first task management and overtime monitoring module belong to supporting module,
Basic-level support is provided for other each modules for guard plate.
It is introduced below from the function for modules in guard plate.
1) ATP communication protocol module realizes the interface protocol between guard plate and ATP main control unit.
2) safety function module interface realizes the preliminary treatment of guard plate and ATP interface protocol data.
3) safe floor, the nucleus module of guard plate, processing ATP order handle non-security plate data, realize secure layer protocols
And realize the conversion of ATP data format.
4) the first data collection and distribution, ATP data, non-security plate data, configuration parameter, key and security algorithm are defeated
Enter the data such as output, requires to be collected and distribute by this module.
5) security algorithm is realized in security algorithm library, is used to generate session key for safe floor, and be safe layer data meter
Calculate MAC check code.
6) security algorithm interface module realizes the interface of safe floor and security algorithm library, including algorithm in security algorithm library
Selection, algorithm input and output etc..
7) the first communication protocol module, it is corresponding with the second data collection and the distribution module of non-security plate, realize safety
Communication protocol between plate and non-security plate.
8) first task management and overtime monitoring module, realize each module initialization, sequential scheduling, runing time monitoring with
And the functions such as timeout treatment.
9) the first log module provides log and saves function and data board interface function.
2, non-security plate
The primary structure of non-security plate is as shown in figure 4, it mainly includes：Local file management module, the second data collection
With distribution module, the second communication protocol module, coordination function module, ALE layers, TCP layer, IP layers, PPP layers, station management module；
Wherein, the corresponding connection guard plate of the second communication protocol module, station management module, the radio station LTE-R；Second communication
Protocol module, the second data collection and distribution module, coordination function module, ALE layers, TCP layer, IP layers, PPP layers and station management
Module is sequentially connected；Local file management module is connected with the second data collection with distribution module and station management module；Coordinate
Functional module is also connected with PPP layers and station management module；
Further include：The second log module being connected with above-mentioned each module and the second task management and overtime monitoring module, institute
The second log module is stated to be connected by two interfaces with data board.
As previously mentioned, non-security plate mainly realizes the ALE sublayer of the communication protocol based on LTE-R open network, TCP/IP
With ppp protocol stack, and the functions such as key and configuration parameter management, the control of the radio station LTE-R are realized.Non-security plate is sent to guard plate
Key information and configuration parameter information, and with the interacting vehicle information with guard plate；Non-security plate also sends control instruction to radio station,
And interactive service data.
In the embodiment of the present invention, the second log module and the second task management and overtime monitoring module belong to supporting module,
Basic-level support is provided for other each modules for non-security plate.
It is introduced below for the function of modules in non-security plate.
1) local file management module, for accessing the configuration parameter locally saved and key.
2) the second data collection and distribution, the data such as ground data, guard plate data, configuration parameter, key require to lead to
This module is crossed to be collected and distribute.
3) the second communication protocol module, it is corresponding with the first data collection and the distribution module of guard plate, realize guard plate
With the communication protocol between non-security plate.
4) coordination function module, the nucleus module of non-security plate select radio station and channel, management ALE connection management, management
ICP/IP protocol stack and ppp protocol etc..
5) station management module, state, the instruction of processing radio station and the transmission radio station data of management of stations.
6) ALE layers, TCP layer, IP layers and PPP layers realize the equivalent layer protocol stack function in car-ground radio functional interface specification
Energy.
7) the second task management and overtime monitoring module, realize each module initialization, sequential scheduling, runing time monitoring with
And the functions such as timeout treatment.
8) the second log module provides log and saves function and data board interface function.
In addition, non-security plate design has Flash and MRAM chip, for storing executable file, Parameter File, key text
Part.The relevant parameter of field engineering, key etc. can be configured as needed.Non-security plate passes through DB26 Interface Controller
The radio station LTE-R.
3, data board
Data board receives log information from guard plate and non-security plate and saves, and one is additionally provided on the front panel of system and is dialled
Knob switch is additionally provided with several USB interfaces, is used for download log for distinguishing the run mode and maintenance state of data board.
4, power panel
Power panel receives external 110V power supply, and provides needed for operation and maintenance to guard plate, non-security plate and data board
Power input.
Above scheme of the embodiment of the present invention can support the radio station LTE-R, and be applicable in LTE-R network；It can be used for carrying
CTCS-3 grades of train control system wireless datas；In addition, the technical solution in two radio station GSM-R of existing need relatively, this system only need
Want the radio station LTE-R that its function can be completed.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (7)
1. a kind of CTCS-3 grade column control vehicle-mounted wireless communication system based on LTE-R packet switching network, which is characterized in that packet
It includes：Guard plate, non-security plate and data board；Wherein：
The guard plate is connected with non-security plate, and the non-security plate sends key information and configuration parameter information to guard plate,
And interactive vehicle the information with guard plate；Guard plate and non-security plate are connected with data board, by data board receive guard plate and
Log information that non-security plate is sent and preservation；
The guard plate realizes the safe floor and security algorithm function of the communication protocol based on LTE-R open network；Guard plate is logical
It crosses relevant interface to be connected with ATP, receives the connection management order that ATP is sent, and interact wireless information with ATP；
The non-security plate realizes ALE sublayer, TCP/IP and the ppp protocol stack function of the communication protocol based on LTE-R open network
Can, and realize key and configuration parameter management, the radio station LTE-R control function；Non-security plate also passes through relevant interface and LTE-R electricity
Platform is connected, and sends control instruction, and interactive service data to the radio station LTE-R.
2. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 1
System, which is characterized in that system further includes, for providing the power panel of power supply for guard plate, non-security plate and data board；With
And each board of internal system is provided, the backboard of connecting interface is provided.
3. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 1
System, which is characterized in that the guard plate includes：ATP communication protocol module, safety function module interface, safe floor, the first number
According to collection and distribution module, security algorithm interface module, security algorithm library module and the first communication protocol module；
Wherein, the corresponding connection ATP of ATP communication protocol module, the first communication protocol module, non-security plate；ATP communication protocol mould
Block, safety function module interface, the first data collection and distribution module, security algorithm interface module and security algorithm library module according to
It is secondary to be connected；First data collection is also connected with safe floor and the first communication protocol module with distribution module；
Further include：The first log module being connected with above-mentioned each module and first task management and overtime monitoring module, described the
One log module is also connected with data board.
4. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 3
System, which is characterized in that
ATP communication protocol module realizes the interface protocol between guard plate and ATP main control unit；
Safety function module interface realizes the preliminary treatment of guard plate and ATP interface protocol data；
Safe floor, for handling ATP order, handling non-security plate data, realize secure layer protocols and realize ATP data format
Conversion；
First data collection and distribution, for collecting and distributing ATP data, non-security plate data, configuration parameter, key and peace
Full algorithm；
Security algorithm is realized in security algorithm library, for being that safe floor generates session key, and calculates MAC for safe layer data
Check code；
Security algorithm interface module realizes the interface of safe floor and security algorithm library, including algorithms selection, calculation in security algorithm library
Method input and output；
First communication protocol module, it is corresponding with the second data collection and the distribution module of non-security plate, realize guard plate with it is non-
Communication protocol between guard plate；
First task management and overtime monitoring module realize each module initialization, sequential scheduling, runing time monitoring and time-out
Processing；
First log module provides log and saves function and data board interface function.
5. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 1
System, which is characterized in that the non-security plate includes：Local file management module, the second data collection and distribution module, second
Communication protocol module, coordination function module, ALE layers, TCP layer, IP layers, PPP layers, station management module；
Wherein, the corresponding connection guard plate of the second communication protocol module, station management module, the radio station LTE-R；Second communication protocol
Module, the second data collection and distribution module, coordination function module, ALE layers, TCP layer, IP layers, PPP layers and station management module
It is sequentially connected；Local file management module is connected with the second data collection with distribution module and station management module；Coordination function
Module is also connected with PPP layers and station management module；
Further include：The second log module being connected with above-mentioned each module and the second task management and overtime monitoring module, described the
Two log modules are connected by two interfaces with data board.
6. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 3
System, which is characterized in that
Local file management module, for accessing the configuration parameter locally saved and key；
Second data collection and distribution, for collecting and distributing ground data, guard plate data, configuration parameter and key；
Second communication protocol module, it is corresponding with the first data collection and the distribution module of guard plate, realize guard plate and non-peace
Communication protocol between full plate；
Coordination function module, for selecting radio station and channel, management ALE connection management, management ICP/IP protocol stack and PPP association
View；
Station management module, for the state of management of stations, the instruction of processing radio station and transmission radio station data；
ALE layers, TCP layer, IP layers and PPP layers realize the equivalent layer protocol stack function in car-ground radio functional interface specification；
Second task management and overtime monitoring module realize each module initialization, sequential scheduling, runing time monitoring and time-out
Processing；
Second log module provides log and saves function and data board interface function.
7. a kind of CTCS-3 grade column control vehicle-mounted wireless communication based on LTE-R packet switching network according to claim 1
System, which is characterized in that be additionally provided with one on the front panel of system and dial knob switch, for distinguishing run mode and the maintenance of data board
State is additionally provided with several USB interfaces, is used for download log.
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| CN114205327B (en) * | 2021-12-28 | 2024-02-06 | 卡斯柯信号有限公司 | Dynamic IP communication method and system for trackside safety platform |
| CN114501379A (en) * | 2022-01-27 | 2022-05-13 | 中国铁道科学研究院集团有限公司通信信号研究所 | Train control vehicle-mounted wireless communication system compatible with circuit domain and multiple packet domain networks |
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