Patent ID: 8140298
Filing Date: 2012-03-20
Classification: G05B

Abstract:
1. A process for determining a diagnostic for a breakdown of an avionic system that includes a plurality of functional units and a plurality of surveillance units, each performing surveillance of at least one functional unit, the process comprising: acquiring, in a centralized maintenance system, unitary diagnostics from the plurality of surveillance units of the avionic system, each of the plurality of surveillance units providing the unitary diagnostics corresponding to the plurality of functional units, wherein the plurality of surveillance units perform surveillance on the plurality of functional units, constructing, in the centralized maintenance system, a possible diagnostics relating to the plurality of functional units on the basis of the acquired unitary diagnostics from the plurality of surveillance units, each of the possible diagnostics identifying the breakdown of the at least one functional unit, each of the possible diagnostics having a subset of the plurality of functional units associated therewith, determining, in the centralized maintenance system, a likelihood criterion for each of the constructed possible diagnostics, the likelihood criterion for each of the constructed possible diagnostics being determined according to the subset of the plurality of functional units associated thereto, selecting, in the centralized maintenance system, one of the constructed possible diagnostics according to the likelihood criterion to identify the breakdown of the at least one functional unit of the subset of functional units associated with the one of the constructed possible diagnostic selected.