基于SHLPN的CAN总线网络可靠性研究

Research on Reliability Analysis of CAN Bus Network Using Stochastic High-level Petri Net

提出一种基于随机高级Petri网(Stochastic High-level Petri Net,SHLPN)的CAN总线网络可靠性建模与分析方法;深入分析CAN总线网络系统的基础上,将其等效为链路模块和子系统模块的串联结构系统,分别建立了链路模块和子系统模块的SHLPN模型,有效地模拟了CAN总线网络的动态行为;然后将链路模块和子系统模块的SHLPN模型转化为连续马尔科夫链(Continuous Time Markov Chain,CTMC)模型,分析得到了系统稳态可用度指标,验证了所提方法的有效性。

This paper presents a new reliability analysis method of CAN bus network by using stochastic high--level petri net （SHLPN） is proposed. Based on the analysis of CAN bus network, it is equivalent to the series system composed of link and subsystem modules. And SHLPN models of link and subsystem modules are constructed, which can describe the dynamic behavior of CAN bus network. These SHLPN models of link and subsystem modules are transformed into continuous time markov chain models, the steady state availability is ob-tained, and the poposed method is validated.