某三余度计算机及其接口模块工作模式设计

摘要

For large- scale UAV system,the cost performance of the TMR electronic flight control system is the most reasonable,This article introduces the design and realization of a large- scale UAV system,The system adopts similitude TMR structure,For the coherence of time and space for different channels to output control signals,it used high speed CCDL and synchronous technique,To improve the process ability, intelligent I/O modules are used to share its main CPU's work,Intelligent I/O modules have independent BIT function,and use DPRAM to exchange information with the CPU,The Intelligent I/O modules sustain software configure dynamically.%对于大型无人机系统来说,三余度电传飞控系统具有最合理的性价比.介绍某大型无人机三余度飞控计算机系统的总体设计和实现方案.系统采用相似三余度容错结构,通过高速交叉通道数据链和同步技术保证不同余度之间控制输出的时间和空间一致性.为增强系统处理能力,采用智能接口模块分担主CPU的工作,智能接口模块具有独立的BIT功能,采用双口存储器实现与处理器模块信息交互,硬件接口支持软件动态可配置.