摘要
给出了适用于故障安全（点点）通信的ＭＡＣ子层协议的体系结构，分析了（点点）ＭＡＣ协议的服务规范、帧结构、协议规程及其支持故障安全消息传输的特性，同时描述了部分ＭＡＣ子层协议的接口规程的验证问题。
This paper presents the protocol structure of a fail-safe (node to node) communication MAC sub-layer protocol,and analyses the service specification,MAC frame structure and protocol specification of the MAC sub-layer protocol.Furthermore,the characteristics of the MAC protocol to support the fail-safe message transferring are briefly introduced,and the validation of the PH-MAC interface protocol functions is described.The research results may be used in the fieldbuses of railway signaling devices.
基金
铁道部铁路科技研究开发计划项目
