长航时无人机飞行器管理计算机设计研究

Redundant Vehicle Management Computer for High Altitude Long Endurance Unmanned Aerial Vehicle

高高空长航时无人驾驶飞机对其任务可靠性和安全性提出了极高的要求,而飞行器管理计算机是保证飞机安全和任务执行的核心部件。飞行器管理计算机采用合适的冗余配置可以有效地提高可靠性和安全性。探讨了一种基于三模冗余(TMR)结构的相似余度容错计算机,描述了计算机的硬件组成以及为满足可靠性要求所采取的任务调度和余度管理算法。在计算机综合化小型化以及调试测试方法方面所进行的创新使计算机具有良好的测试性和维修性并能够适应未来航空电子发展的需求。

The high altitude long endurance unmanned aerial vehicle require ultrahigh mission reliability and safety, and the vehicle management computer is the kernel of vehicle management system for vehicle safety and mission completed. In order to meet mission reliability and safety demands, N- modular redundancy technique is used in designing VMC. In this paper we designed a TMR similar fault- tolerant VMC, and the VMC＇s structure of hardware task scheduling and redundancy management algorithm for fault tolerance are discussed in detail. The innovation of integrated modular and the technique for debug and test make the VMC has fine testability and Maintainability, and meet future integrated modular avionics＇ demands.