摘要
根据煤矿监控系统中周期数据和非周期数据对时间的不同要求,在CAN总线非破坏性优先权逐位仲裁规则的基础上,提出一种节点传递法则,有效地减小数据碰撞的概率,解决帧传输延时的不确定性,提高信道的使用率和传输数据的实时性,介绍该实时通信协议,给出例外事件的处理方法,讨论并分析帧最大传输延时的具体计算方法。
According to the different demands of periodic and aperiodic data,the regulation of node transfer is presented based on non-destroyed priority bit-by-bit arbitrate regulation.The probability of data collision is minished effectually,and a limited transmission time is ensured.The maximum delay time is made adjustable and the real-time of the data communication is improved.The real-time protocol is described detailedly and the method of exception is given.View of the new protocol,the calculating methods of maximum transmitting delay is discussed and analyzed.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第10期236-238,共3页
Computer Engineering
基金
国家"863"计划基金资助项目(2007AA06Z114)
江苏省高新技术基金资助重大项目(BG2007012)
中国矿业大学科研基金资助项目(OC080303)
关键词
节点传递法则
最大传输延时
CAN总线
实时通信协议
node transfer rule
maximum transmission delay
CAN bus
real-time communication protocol
