基于热备份的双余度嵌入式系统的容错设计

Fault-Tolerant Design of Dual Hot-Standby Embeded System

针对机载嵌入式系统的高可靠性和实时性要求,在对容错技术研究的基础上,提出了一种基于热备份的双余度嵌入式系统容错设计方法,阐述了该容错方法的故障检测设计、故障屏蔽设计和系统重组设计,并重点论述了系统重组中的重组方法和平滑切换这两个关键问题的解决方法。

To achieve the high reliability and real-time of airborne embeded system,a fault-tolerant design method of dual hot-standby embeded system is presented on the basis of fault-tolerant technology investigation. Fault detection,fault masking and system reconfiguration are designed,and reconfiguration method and smooth switching in system reconfiguration are presented.