基于CANopen协议的轨道交通安全计算机平台研究

Study on Safety Computer System for Rail Transit Based on CANopen Protocol

CANopen是基于CAN(Controller Area Network)开发的应用层协议.本文在分析CANopen协议的通信原理的基础上,针对轨道交通安全计算机平台的通信需求,着重介绍了安全计算机平台通信部分的设计与实现,包括CAN网络中各个节点的硬件接口设计,以及软件设计与实现;并通过试验测试和现场正式运行,验证了平台通信的安全性和可靠性.

CANopen is an application layer protocol developed over CAN(Controller Area Network).Based on the analysis of communication principle of the CANopen protocol,the design and implementation of the communication of the safety computer system is presented according to the communication requirements of the safety computer for rail transit,which includes the design of hardware interface of the CAN nodes as well as the design and implementation of their software.And the safety and reliability of the communication of the safety computer system has been validated via test and on-site operation.