Patent ID: 6208955
Filing Date: 2001-03-27
Classification: G05B,G06F,G08G

Abstract:
In an avionics system having a plurality of interrelated sub-systems, a diagnostic system for diagnosing a failing sub-system, said diagnostic system comprising:a communication network incorporating an object oriented communication paradigm for transmitting objects;a data collector, coupled to said sub-systems and to said communication network, for deriving state variables representative of the operation of said sub-systems;an evaluator, coupled to said communication network for receiving said state variables, having a set of query directed acyclic graph files associated therewith, said evaluator adapted to access said files to generate a diagnostic inference in response to erroneous operation of at least one of said sub-systems as represented by said state variables; anda presenter, coupled said communication network, for combining said inference from said evaluator with a schematic representation of said avionic system to graphically identify at least one sub-system causing said erroneous operation.