基于码分多址(CDMA)的地铁维护用车载无线通信系统  

On-board Wireless Communication System for Subway Vehicle Maintenance Based on CDMA

作　　者：王磊 刘正 阎莉 沈洁[2] 黄凤辰[2] 李臣明[2] 

机构地区：[1]中国中车浦镇车辆有限公司,南京工程师210031 [2]河海大学计算机信息学院,南京211100

出　　处：《城市轨道交通研究》2015年第11期40-44,共5页Urban Mass Transit

摘　　要：为了实现地铁车辆运行时与地面监控系统之间进行可靠通信,设计了以ATxmega384C3为核心的基于CDMA2000网络的车载无线通信系统。阐述了CDMA2000网络的优点,并对系统原理的关键技术做了理论分析。介绍了车载无线通信系统数据传输的基本原理以及数据帧格式,并给出ATxmega384C3为核心的硬件电路设计以及数据发送与接收的流程,该系统可实时、可靠地与地面之间进行数据的收发,为地铁车辆维护提供保障。In order to realize the reliable communication between subway vehicle and ground system for subway vehicle monitoring and control, an on-board wireless communication system is designed based on CDMA 2000 network with ATxmega384C3 chip as the core. In this paper, the advantages of CDMA 2000 network are demonstrated, the principle and the key technologies of the system are introduced. Then, a novel method for designing an ATxmega384C3 chip based hardware, the data sending and receiving processes are proposed. This system is adapted to sending and receiving data between subway vehicle and ground-based system timely and reliably, so as to ensure the maintenance of subway vehicles.

关 键 词：地铁 车载无线通信系统 码分多址 

分 类 号：U270.38[机械工程—车辆工程]