Research on Key Technologies of Fault Diagnosis of an INS

Abstract

Aiming at the problems of an inertial navigation system, such as poor accessibility for detection, difficulty in fault locating and lack of detecting means, we carried out a research on key technologies of fault diagnosis, proposed a Built-In test mechanism reconfiguration method of the inertial system, designed a portable fault diagnosis device based on the ZigBee wireless communication technology and utilized the inference algorithm for fault diagnosis based on a multi-signal flow graphs model to achieve accurate fault locating, thus greatly improving conditions for the system maintenance.