CTCS-3 level train control vehicle wireless communication system based on LTE-R packet switching network

Abstract

The invention discloses a CTCS-3 level train control vehicle wireless communication system based on an LTE-R packet switching network. The CTCS-3 level train control vehicle wireless communication system based on the LTE-R packet switching network comprises a security board, a non-security board and a recording board; the security board realizes security layer and security algorithm functions based on the communication protocol of an LTE-R open network; the security board is connected with an ATP through a related interface, receives a connection management command sent by the ATP, and performs wireless message interaction with the ATP; the non-security board realizes ALE sub-layer, TCP / IP and PPP protocol stack functions based on the communication protocol of the LTE-R open network, and realizes key and configuration parameter configuration and LTE-R radio control functions; the non-security board is also connected with an LTE-R radio through a related interface, sends a control instruction to the LTE-R radio, and performs service data interaction; and the recording board receives and stores log information sent by the security board and the non-security board. The system can support the LTE-R radio, can be suitable for the LTE-R network, and can be used for bearing CTCS-3 level train control system wireless data; and in addition, compared with the existing technical scheme, the system in the invention can complete the functions only through an LTE-R radio.

Description

technical field [0001] The invention relates to the technical field of railway communication signals, in particular to a CTCS-3 train control vehicle-mounted wireless communication system based on an LTE-R packet switching network. Background technique [0002] In the CTCS-3 train control system of China's high-speed railway, the RBC equipment on the ground is responsible for generating the traffic permission message and sending it to the on-board ATP equipment to control the operation of the train. The ATP equipment currently in operation uses GSM-R radio stations, and uses the GSM-R circuit switching network to communicate with RBC equipment. The structure diagram of CTCS-3 wireless communication system is as follows: figure 1 shown. [0003] The existing CTCS-3 train control wireless communication system uses GSM-R radio stations and communicates with RBC based on the GSM-R circuit switching network. The communication protocol includes a security layer (ERTMS ETCS subse...

AI Technical Summary

Problems solved by technology

[0005] LTE-R, as the next-generation railway communication system, will be used to carry CTCS-3 train control system services, so the existing wireless communication system will not be able to continue to serve CTCS-3 train control systems

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