Abstract:

For the purpose to resolve the bottleneck problem of obtaining knowledge of aircraft power system expert system,based on the fault pattern analysis of aircraft power system,according to the advantage that rough sets can effectively handle data sets without any pre-validated information,a method used to obtain diagnosis rule automatically is proposed.In the process of attribute reduction and value reduction,an improved method is presented to handle the unknown measuring state.

Key words: testing , technology , and , automation , equipment,  , fault , diagnosis,  , rough , sets,  , power , system,  , aircraft