基于MSFG的机载BITE故障定位算法研究  

Research on Fault Location Algorithm for Airborne BITE Based on MSFG

作　　者：刘家学[1] 杨梦娜[1] 耿宏[1] 

机构地区：[1]中国民航大学航空信息与自动化学院,天津300300

出　　处：《科学技术与工程》2016年第8期132-136,170,共6页Science Technology and Engineering

基　　金：国家自然科学基金重点项目(60832011);天津市科技攻关计划重点项目(06YFGZGX00700);中央高校基本科研业务费专项(ZXH2012B001;ZXH2012D010)资助

摘　　要：故障定位是机载BITE的重要功能,定位结果的准确性对维修测试有着重要影响。基于多信号流图模型,在构造故障-测试关联矩阵和故障-故障关联矩阵的基础上,引入故障信息矢量和故障定位矩阵,并给出适用于机载BITE故障定位的矢量描述和矩阵定义,进而提出一种简单、有效的故障定位算法。实例验证表明,该算法能够对系统中的故障源进行准确定位。Fault location is an important function of the airborne BITE system,the accuracy of the positioning result has an important impact on the maintenance test. Based on multi-signal flow graph model,by constructing the fault-test dependency matrix and fault-fault dependency matrix,fault information vector and fault location matrix are introduced,and gives its relation vector description,matrix definition,then proposes a simple and effective fault location algorithm. Example of verification shows that this algorithm is reasonable to the accurate positioning of failure sources in the system.

关 键 词：故障定位 多信号流图模型 机载BITE系统 故障定位矩阵 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]