Abstract: According to the running environment and characteristics of distributed spacecraft system, requirements of embedded systems are analyzed on space environments, real-time, fault tolerance and distribution. An integrative design of distribution, real-time and fault tolerance is proposed. Details of the design are described from four aspects: real-time fault tolerant ability based on accomplishing the real-time requirements, integrated fault tolerant ability integrated immunity and self cure, distributed fault tolerant ability integrated fault tolerance on single node and among multi nodes and the integration of multi fault tolerant techniques.

Key words: distributed spacecraft system, embedded system, distribution, real-time, fault tolerance

摘要： 针对分布式航天器系统的运行环境和特点，对嵌入式系统在空间环境、实时、容错、分布上的需求进行了分析，提出了分布、实时、容错一体化的嵌入式系统设计方法，从满足实时要求下的实时容错能力、免疫与自愈相结合的综合容错能力、单节点的容错与节点间容错相结合的分布容错能力和多种容错方法集成等4个方面，对设计方法进行了阐述。

关键词: 分布式航天器系统, 嵌入式系统, 分布, 实时, 容错

CLC Number: 

• TP338