潜在故障对容错实时计算机系统可靠性的影响

Effects of dormant faults on reliability of fault-tolerant real-time computer system

由于大多数容错系统是基于单故障假设,所以系统中存在的潜在故障可能会影响系统可靠性。以汽车控制系统为例,研究了潜在故障对系统可靠性的影响,并在分析以往各参数对系统平均故障前时间影响的基础上,提出了一个处理紧急事件所需时间新参数,这是在永久性故障时必须考虑的重要参数,并分析了该参数对系统可靠性的影响。

As most of the fault-tolerant systems are based on single-fault assumption, the dormant fault is a potential threat to its reliability. Using the example of an automotive control system, the effects of dormant faults on the reliability of the system were studied. Moreover, based on the analysis of the effects of ancient parameters on mean time to the system failure, a new parameter of the time required for emergence handling was introduced. This parameter is important for permanent faults, and its effects on the reliability of the system were analyzed.