地铁乘客信息系统的车地通信技术研究

Research on Vehicle-Ground Communication Technology of Subway Passenger Information System

随着我国地铁事业的不断发展,地铁工程数量不断增多,为人们出行提供了更多便利。通信作为提高地铁服务质量的重要一环,也是地铁乘客信息系统的重要组成部分,如何保证地铁乘客信息系统的车地通信质量是需要重点考虑的问题。地铁车地无线通信的主流技术包括WLAN、LTE、WiMAX,笔者对这3种通信技术进行分析和对比,选出最适合的车地通信技术方案。

With the continuous development of China's Metro industry, the number of metro projects is increasing, which provides more convenience for people to travel. As an important part of improving the quality of Metro service, communication is also an important part of the metro passenger information system. How to ensure the quality of the metro passenger information system is a key issue to be considered. Mainstream technologies of Metro Communication include WLAN, LTE and WiMAX. This paper analyses and compares these three communication technologies, and chooses the most suitable vehicle-to-ground communication technology scheme.