基于LPS的飞行器故障诊断

通过对产品层、系统层的信号、物理连接及其互连关系的分析,提出了一种将抽象的逻辑信号和具体的物理连线统一起来的逻辑物理综合(LPS)模型,并研究了基于导线表文件和网表文件的LPS模型实例化方法,开发了一套智能故障检测软件,进行了算例验证,结果表明:基于LPS模型的故障诊断方法能够将系统故障定位到指定产品级别上,具有极大的工程应用价值。

A fault diagnosis approach research based on LPS modelfor flight control system

By analyzing the signals of product layer or system layer, physical connection and its interconnected relationship,a set of logical physical synthetically（LPS）model,which unifies the abstract signal and the physical connection,was presented to study the LPS model instantiation method based on wire table and net table,and aset of intelligent fault detection software was developed. An example for validation Was demonstrated：the fault diagnosis method based on LPS model can isolate the fanh to the specified product level,with great value of engineering application.