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引用次数: 5
摘要
提出了一种约束基于can的实时系统的FIT (failure In Time)率的方法，即十亿运行小时内的预期故障数。该方法利用了文中导出的一种分析方法，即在主机和网络由于电磁干扰(EMI)而发生故障的情况下，正确及时地传输消息的概率。对于给定的工作负载，可以使用导出的FIT率来查找最佳复制因子，通过基于从简单移动机器人获取的消息集的案例研究来演示这一点。
When Is CAN the Weakest Link? A Bound on Failures-in-Time in CAN-Based Real-Time Systems
A method to bound the Failures In Time (FIT) rate of a CAN-based real-time system, i.e., the expected number of failures in one billion operating hours, is proposed. The method leverages an analysis, derived in the paper, of the probability of a correct and timely message transmission despite host and network failures due to electromagnetic interference (EMI). For a given workload, the derived FIT rate can be used to find an optimal replication factor, which is demonstrated with a case study based on a message set taken from a simple mobile robot.
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