煤矿井下高可靠性与实时性的CAN总线通讯协议  

CAN Bus communication Network of High Dependability and Real-time for Coal Mine

作　　者：钱振华[1] 伍小杰[1] 姜小艳[1] 程尧[1] 

机构地区：[1]中国矿业大学信电学院,江苏徐州221008

出　　处：《煤矿机械》2009年第5期203-205,共3页Coal Mine Machinery

摘　　要：针对煤矿系统中的CAN总线通讯,提出了一种适用于该系统的应用层通讯协议。通过对CAN2.0B帧结构的分析,根据系统的通讯要求对扩展帧的报文标识符的各位进行了定义,用来存放通讯中的控制信息,并且根据不同数据采用不同的发送机制,在确保满足煤矿井下通讯高可靠性要求的同时也保证了一定的通讯效率。Proposed an application layer communication protocol which was suitable for CAN （Controller Area Networks） bus based colliery systems. After analyzing the frame structure of CAN2.0B and the communication requirements of the colliery system, gave a definition for each bit of message identifier in the extended data frame to carry communication control information. Mean while, selecting the different model of transmit mechanism according to the different date. Thus guarantee a certain communication efficiency while ensuring the high reliability of communication in the colliery system.

关 键 词：CAN总线 通讯协议 数据帧 

分 类 号：TD65[矿业工程—矿山机电] TP31[自动化与计算机技术—计算机软件与理论]