基于MVB总线的DMI与车载设备通信方法  

MVB-based Communication Methods between DMI and On-board Equipment

作　　者：张友兵[1] 王建敏[1] 孙可[1] 

机构地区：[1]北京全路通信信号研究设计院有限公司

出　　处：《铁道通信信号》2014年第11期77-81,共5页Railway Signalling & Communication

摘　　要：在CTCS-2级列控系统中,需要为DMI和车载设备之间传输数据提供一种及时、安全、高效的方法。首先介绍了基于MVB总线的DMI与车载设备的通信方法,包括周期数据传输方法和非周期数据传输方法;其次介绍了非周期数据传输协议的基本原理,发送数据状态机和接收数据状态机的设计方法;最后对DMI与车载设备传输数据方法的实时性、正确性和可用性进行了分析。A timely, safe and efficient way of transferring the data between the Driver Machine Interface and on-board equipment is required in CTCS-2 train control system. This paper firstly introduces the communication solution based on MVB between the DMI and on-board Equipment, including periodic data transmission method and non-cyclic data transmission method. Then it introduces the basic principle of non-cyclic data transmission protocol, the design of the data sending state machine and the data receiving state machine. Finally, we analyze the real-timeness, accuracy and availability of the data transmission method between the DMI and on-board equipment.

关 键 词：中国列车运行控制系统 车载设备 人机界面 多功能车辆总线 

分 类 号：U285[交通运输工程—交通信息工程及控制]