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本文主要描述准三模冗余系统双微机核的硬件故障检测机构及其一些设计细节,并对设置在总线上的双比较器的错误检测性能作了分析。分析表明,双微机核对于单故障和一类有序双故障具有非常类似于FSE(故障保险)的特征。
This paper mainly describes the hardware fault detection mechanism and some design details of the dual-microcomputer core in a quasi-three-module redundant system and analyzes the error detection performance of the dual comparators set on the bus. The analysis shows that the dual-computer checks for single faults and a class of ordered double faults have characteristics very similar to FSE (Fail-Safe).