任务管理式冗余飞控系统的可靠性分析

Reliability Analysis for Redundant Flight Control System with Task-managing

在对当前飞控计算机系统分析的基础上,本文提出了任务管理式冗余飞控系统的概念,即将任务按一定原则分割分配到相应的计算机节点上,使各节点协同完成任务。在发生故障时进行动态调度,保证任务继续执行。而且在相应假设基础上,建立了任务管理式冗余飞控系统的Markov模型,分析了各参数对系统可靠性的影响,为该方式的实际应用与完善提供了理论依据。

After research on previous flight control system, a definition of redundant flight control system based on Task-managing is presented firstly. This means to divide and assig the task to corresponding computer nodes, cooperate the task according to centain principles, and schedule dynamically when failures occur, for ensuring the implementation of task sequentially. Then this paper sets up the Markov model of redundant flight control system with Task-managing, and analyses the parameters?influence on the reliability of system. The study conducted in this paper can be used as a theoretic evidence in practicality and improvement of this system.