一种基于串行总线的智能容错飞控计算机系统

An Intelligent Fault-Tolerant Flight Control Computer System Based on Serial Bus

从工程技术角度出发 ,讨论了适用于无人驾驶飞行器的容错飞控计算机系统的实现 ,给出了基于串行总线的智能容错飞控计算机系统结构 ,将工作状态检测系统和故障预测技术应用到容错计算机系统中 ,可在故障发生前采取容错措施 ,避免故障发生和故障造成的系统失效。给出了总线接口、运算控制单元、A/D转换单元、通讯模块的结构和实现方法 ,指出利用CPLD和HDL语言进行电路综合具有效率高、测试方便、易修改的特点 ,应在实践中广泛推广。

From the point of view of engineering, the realization of fault-tolerant flight control computer system suited for unmanned flight vehicle is discussed in this paper. The structure of an intelligent fault-tolerant flight control computer system based on serial bus is given. We apply working state detecting system and fault prediction technology to fault-tolerant computer system. That can take fault-tolerant measures before fault taking place so as to avoiding fault and system failure. The structure and realization means of bus interface, arithmatic and control unit, A/D converter unit, and communication module are proposed. It points out in this paper that utilizing CPLD and VHDL language to synthesize circuits is an effective, easy testable, easy amendable method. It should be widely used in practice.\;