新一代飞控计算机余度构型

飞控计算机广泛采用容错技术达到高可靠性指标,随着可靠性要求的日益提高,必须引入新的容错结构以及余度构型。本文结合析一代飞控计算机对高可靠性、强实时性的要求,对比目前飞控计算机的容错结构以及余度构型,提出了三种三余度构型方案,并对其故障模式进行了分析。在此基础上针对三种方案之一介绍了一种分组优先级剥夺调度算法,给出了详细说明。最后对比了这三种新的三余度方案的优缺点,为容错飞控计算机的发展提供了构型、算法的参考。

The Redundant Structures for a New Style of Fly Control Computer

Fly conetol computers adopted fault tolerant technique to obtain high reliability widely.With the need of reliability increases more and more,new fault tolerant structures and redundant structures must be introduced.This paper combined with the need of high reliability and high real-time capability,compared the fault tolerant structures and the redundant structures of the existed fly control computers,brought forward three new schemes for three redundant structures.Then we analyzed the mode of the faults.And then the arithmetic named Grouped Priority Deprived dispatched Arithmetic is introduced.At last,we compared these methods,and gave out the reference of structure and arithmetic to fault tolerant fly control computers' development.