高可靠性光电平台嵌入式系统设计

摘要

提高航空光电侦察系统在复杂环境下运行的稳定性和可靠性,设计了基于( windows embedded studio,WES)的光电侦察平台嵌入式系统.本系统结合以PⅢ处理器为核心的硬件平台,利用WES( Enhanced Write Filker)开发环境,采用中间件技术,设计可见光CCD图像采集传输组件、分布式数据通信组件和板卡驱动组件；利用(Enhanced Write Filter)技术,集成稳定可靠的分布式客户环境；最后采用NHPP数学模型,分析系统的稳定性与可靠性.实验结果表明,在相同的硬件配置下,基于WES设计的航空光电侦察平台嵌入式系统,系统可靠性和稳定性达到94％以上.并且有效缩短了系统启动时间,系统灵活性强,对硬件资源要求低,易于移植和维护升级.%To improve the visualization,the stability and reliability of the aerospace optoelectronic reconnaissance platform in the complicate environment,a embedded system is designed based on WES. This system combines PIII CPU hardware with WES,card driver,CCD image acquisition unit and distributed data communication part. Using NHPP mathematic model, the stability and reliability of the system are analyzed. The results show that with the same hardware configuration, embedded system design of aerospace optoelectronic reconnaissance platform based on WES can effectively shorten the system's start time by 15% compared with the previous system. The stability and the reliability is increased up to 94%.