摘要
TTCAN协议是一种新的基于时间触发机制的CAN高层协议。针对周期性信号的特点,提出了基于 平均数目分析的静态调度算法;针对非周期信号的随机性,为了避免信号的死锁提出了基于信号截止期的优先级 提升动态调度算法。最后以汽车自动控制系统为背景进行了调度分析,与IEC/ISA相比既满足了信号的实时传 输,又提高了网络资源的利用率。
In the light of the characteristic of the periodic signal, a static scheduling algorithm based on average amount analysis is put forward. According to the randomness of aperiodic signal, a priority promotion dynamic scheduling algorithm based on signal deadline is proposed. Finally, the scheduling analysis is performed based on automotive automatic control system. Compared with IEC/ISA, the scheduling algorithm not only meets the requirements of real-time transmission of signal but also enhances the utilization rate of network resource.
出处
《汽车工程》
EI
CSCD
北大核心
2005年第1期60-63,共4页
Automotive Engineering
基金
天津市重大攻关项目(023183611)资助
