基于CPCI架构航天器测试设备的故障诊断设计与实现

基于CPCI总线架构的航天器测试设备可以实现模块化、集成化和通用化设计,有利于测试系统的再次开发、直接沿用以及后续维护.某型号的综合电子和控制分系统地面测试设备采用基于CPCI总线的架构,使用VxWorks操作系统作为核心调度,采取模块化FPGA开发接口和特定功能.提出以监听任务、功能模块、板卡运行时间为检测手段,实现了对系统测试设备故障的诊断,尤其是反作用轮转速模块,软件能自主进行故障处理.在分系统及整星测试的使用过程中,此方法有效提高了设备的可靠度,提高了对星上产品的安全保护,保证整星大型试验的连续可靠运行.此方法对于其他地面测试设备的故障诊断具有一定的借鉴作用.

Design and Realization of Fault Diagnosis for Spacecraft Test Equipment Based on CPCI Architecture

The spacecraft systemic test equipment based on CPCI bus architecture can realize the modular,integrated,and universal design,which is more convenient to re-exploit,follow and maintain. The ground test equipment of a certain model''s integrated electronic & control subsystem has adopted the CPCI bus architecture,VxWorks operating system as core dispatcher,modular FPGA interface development and specified function. By detection means of task monitor,functional module and board run time,this paper can realizes the fault diagnosis of system test equipment,and autonomic failure handling especially for the reverse wheel speed module. In the use of the subsystem and whole-spacecraft test,this method effectively improves reliability of equipment,security guard of the products on the spacecraft,and also ensures continuous and reliable operation of large scale experiment. Meanwhile,the method has certain reference on fault diagnosis of other ground test equipment.