摘要
作为一种典型的多主系统,CAN总线具有高实时性特点,在应用中,需要根据实际系统的要求选定恰当的调度算法,满足其消息传输的实时性要求。在CAN总线中有效地实施调度算法,必须提供高精度的时钟同步机制。在此基础上,分析了如何把“后期协商”时钟同步算法应用于CAN总线,设计了一种改进的容错性“后期协商”同步算法,提供了高精度的时钟同步机制,实现了在CAN总线中有效地实施调度算法,提供了一定的容错能力,减少同步开销。
As a typical multi-master system,CAN bus has highly real-time property.In practical,it needs to chose an effective scheduling algorithm according to the practical system in order to meet the requirement of highly real-time property.At the same time,it must have a high accuracy clock synchronization mechanism.An increased fault tolerant "later period negotiation" algorithm is proposed,which provides a high accuracy clock synchronization mechanism.The increased algorithm not only has some fault toleration,but...
出处
《控制工程》
CSCD
2006年第S1期137-139,共3页
Control Engineering of China
关键词
时钟同步
CAN总线
“后期协商”算法
clock synchronization
CAN bus
"later period negotiation" algorithm
