The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 2017
Filed:
Sep. 05, 2014
Snecma, Paris, FR;
Safran Engineering Services, Blagnac, FR;
Universite DE Technologie DE Troyes, Troyes, FR;
Jean-Remi Andre Masse, Saint-Cloud, FR;
Ouadie Hmad, Montereau Fault Yonne, FR;
Edith Grall-Maes, Saint-Pounage, FR;
Pierre Jean Emile Beauseroy, Troyes, FR;
SNECMA, Paris, FR;
SAFRAN ENGINEERING SERVICES, Blagnac, FR;
UNIVERSITE DE TECHNOLOGIE DE TROYES, Troyes, FR;
Abstract
A method for monitoring a degradation in an on-board device of an aircraft, comprising a step of comparing an abnormality score obtained for a given flight of said aircraft with a decision threshold (S) and a step of transmitting an alert in the event of said decision threshold (S) being exceeded, said decision threshold (S) being automatically determined for a given probability of alert Pa, corresponding to the probability of an alert being transmitted during the monitoring method when said on-board device is healthy, by means of a plurality of steps, including a step of reading the antecedent of the continuous adjusted division function for the value 1−Peac, said antecedent corresponding to said decision threshold (S), with Peac being the elementary probability of exceeding the threshold for confirmation per k exceedances of threshold during n consecutive flights and being a function of the probability of alert Pa.