空间双机容错计算机系统研究

为在资源有限的条件下，最大限度地实现长寿命空间飞行器计算机系统的容错，同时又能达到所要求的性能，提出了一个模块化的双机容错设计方案。采用热冗余比较方式，软硬件组合实现系统的容错管理，可保证在某个资源或包含该资源的模块发生故障时，不会导致整个系统的失效，并具备模块级重构能力，从而实现系统的资源共享。不同冗余系统可靠性分析和有关测试结果表明，所设计的双机容错系统性能满足有关要求。

Research on Aerospace Dual-Computer Fault-Tolerant System

To realize the fault-tolerant of computer system on long life cycle spacecraft and achieve the performance demanded by means of limited resource, a scheme with modularized dual-computer fault-tolerant was put forward in this paper. The hot tolerant comparison and combination of software and hardware were applied to accomplish the fault-tolerant management, which could ensure that the whole system would not fail when some resource or module with the resource failed, and had the ability of reconstruction on module level. The reliability analysis for different systems and test results showed that the performance of dual fault-tolerant system designed could meet the demands.