TCAS视频存储器板卡故障诊断系统研究  

Research of Fault Diagnosis System of TCAS Video Memory Board

作　　者：罗云林[1] 程晓鹏[1] 

机构地区：[1]中国民航大学航空自动化学院,天津300300

出　　处：《控制工程》2012年第1期145-147,共3页Control Engineering of China

基　　金：国家自然科学基金资助项目(81000639);中央高校基本科研项目(ZXH2009C006)

摘　　要：TCAS是保障飞机飞行安全的重要机载电子设备,然而国内对TCAS系统板卡只能进行板卡级的测试,不能进行元件级的维修和测试。以TCAS系统中的视频存储器板为例,根据板卡电路特点及适航要求提出一种改进后的基于故障树分析的元件级故障诊断新方法,该方法通过对待测板卡提供外围激励信号、编写程控控制命令、故障树分析和编写输出结果优化程序等对待测板卡进行故障检测与定位,该系统通过调试与运行证明效果良好,并由实验数据得出故障检测精度大大提高,为国内自主研发元件级自动检测设备和机载电子板卡的深度维修提供了可靠的理论依据。TCAS is an important electronic equipment on the plane to protect the safety of aircraft, the test system for TCAS can only do trouble for boards in the domestic, it can＇t find the detail fault for components. We take Video Memory board of TCAS system as an example, it makes a new and improved fault diagnosis method of components based on FTA according to characteristics of test board and requirements of airworthiness, it utilizes external stimulus signal, programmable and control order, FTA and output optimization program for the test board to meet fault detection and location, it proves that the system has good effect through debugging and operation, the data obtained the fault diagnosis accuracy greatly improved than before, it provides reliable theoretical basis for independent research and development automatic test equipment for component level and deep maintenance of airborne electronic equipment.

关 键 词：TCAS 故障树分析 元件级维修 故障诊断 

分 类 号：TP27[自动化与计算机技术—检测技术与自动化装置]