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公开(公告)号：US10551830B2
公开(公告)日：2020-02-04
申请号：US15545837
申请日：2016-01-28
Applicant: SAFRAN AIRCRAFT ENGINES
Inventor： William Bense , Jean-Michel Boiteux , Audrey Dupont , Julien Christian Pascal Griffaton , Jerome Henri Noel Lacaille
Abstract: A method of analysis of the state of operation of a machine including a learning step supplementing a reference database with one or more thresholds for one or more indicators calculated on the basis of signals delivered by a sensor associated with the machine, the learning step including the following operations implemented by a computer processing unit; an acquisition of signals characteristic of normal operation and of abnormal operation of the machine; of each of the signals characteristic of normal operation, formation of at least one so-called deviation signal by implementing a mathematical operation having as attributes the signal characteristic of normal operation and one of the signals characteristic of normal or abnormal operation other than the signal characteristic of the normal operation; for each of the deviation signals, calculation of an indicator; determination of an indicator threshold representative of a limit between normal operation and abnormal operation of the machine.
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