机载大屏幕显示器的余度设计及余度管理

The Redundancy Design and Redundancy Management of Avionic Large Screen Display

余度技术是系统或设备获得高可靠性的设计方法之一。为了显著提高系统的任务可靠性,当系统发生故障时,余度系统能够自动完成系统重构,继续正常工作,从而提高了飞机的任务可靠性和安全性。本文从余度设计的概念出发,通过对余度等级、结构、数目及层次等几个方面对余度设计进行分析,结合某大屏幕显示器余度设计,给出了余度设计的基本方法,提出了一种余度管理方案,该设计思想也可用于其它机载设备中。

Redundancy technology is one of design ways when systems or aevac^b gel ,,~,J reliability.in order to increase system mission reliability, redundancy systems can achieve system reconfiguration automatically and keep on the right way when systems go wrong, so that may enhance the mission reliability and safety of airplanes. This paper provides a redundancy management project about the redundancy design of one big screen display according to the analysis of redundancy grade, redundancy framework, redundancy count, and redundancy level, this project can also be applied to other airborne devices.