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Method, devices and program for computer-aided preventive diagnostics of an aircraft system, using critical event charts

  • US 20130274992A1
  • Filed: 04/11/2013
  • Published: 10/17/2013
  • Est. Priority Date: 04/12/2012
  • Status: Active Grant
First Claim
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1. A method for the computer-aided preparation of a diagnostic report for a complex system of an aircraft comprising a plurality of subsystems, at least one subsystem of said plurality of subsystems comprising a subsystem configured for monitoring and notification of at least one detected event, the method comprising:

  • implementing a critical event chart at least partially modelling said complex system, said critical event chart comprising a plurality of nodes, each node of said plurality of nodes being linked by a logical implication relation to at least one other node of said plurality of nodes, said plurality of nodes comprising;

    a plurality of nodes each representing a notification message capable of being received;

    at least one node representing a critical event; and

    ,a plurality of nodes each representing an element of said complex system, each element represented by a node being liable to failure;

    receiving at least one notification message of the occurrence of said at least one detected event;

    creating a minimal diagnostic set relative to said at least one detected event, comprising a plurality of elements each represented by a node of said critical event chart, each element of said minimal diagnostic set being determined according to at least one logical implication relation of said critical event chart with a node representing said at least one received notification message; and

    ranking at least some of said elements of said minimal diagnostic set, said ranked elements forming part of said diagnostic report.

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