基于公网的轨道交通车地无线通信可靠性技术研究

Research on Reliability Technologies for Train-Wayside Wireless Communication of Rail Transport Based on Public Network

针对运营商公网承载列控数据时面临的可靠性和安全性等潜在风险,开展基于公网的轨道交通车-地无线通信可靠性技术研究,引入L2TP隧道技术和IPSec加密技术对传输通道进行保护,提高数据传输的可靠性。根据两种技术的应用位置不同,形成3种车-地无线通信网络部署方案,并进行对比分析。

In view of the potential risks related to reliability and security when the train control data are carried by the public networks of telecom operators,this paper studies the reliability technologies for train-wayside wireless communication of rail transport based on the public network,and presents the adoption of the L2TP tunneling technology and IPSec encryption technology to protect the transmission channels and improve the reliability of data transmission.Based on the application locations of these two technologies,three network deployment schemes are proposed for train-wayside wireless communication,and comparative analysis is made among these three schemes.