Standardization of data used for monitoring an aircraft engine

Details Standardization of data used for monitoring an aircraft engine Standardization of data used for monitoring an aircraft engine

G - Physics

05

B

G05B 23/02 (2006.01)

Patent

CA 2746537

The invention relates to a method and system for standardizing data used for monitoring an aircraft engine (1) comprising: - means (5) for gathering in the course of time temporal measurements on said aircraft engine (1); - means (5) for calculating on the basis of said temporal measurements a set of indicators Y = (Yi,..., Yi...,Ym) specific to elements of said engine; - means (5) for identifying on the basis of said temporal measurements a set of exogenous data X = (*,,...,*) representative of the exterior context intervening on said set of indicators F; - means (5) for defining a conditional multidimensional model which simultaneously manages the indicators of said set of indicators F while taking account of said set of exogenous data X so as to form a set of estimators Y = (yi,..., y],..., ym) corresponding to said set of indicators Y = (y?,...,yi,...,yn); and means (5) for normalizing each estimator y} as a function of a reference value of the corresponding indicator y} and of a deviation between said each estimator Yi} and said corresponding indicator y} so as to form a set of standardized values F = (~yi,..., ~yJ,...,~ym).

L'invention concerne un procédé et un système de standardisation de données utilisées pour la surveillance d'un moteur (1) d'aéronef comportant : -des moyens (5) pour recueillir au cours du temps des mesures temporelles sur ledit moteur (1) d'aéronef; -- des moyens (5) pour calculer à partir desdites mesures temporelles un ensemble d'indicateurs ~ = ~i...., ~m) spécifiques à des éléments dudit moteur; -des moyens (5) pour identifier à partir desdites mesures temporelles un ensemble de données exogènes X=(x1,.... x n) représentatives du contexte extérieur intervenant sur ledit ensemble d'indicateurs F; -des moyens (5) pour définir un modèle multidimensionnel conditionnel gérant simultanément les indicateurs dudit ensemble d'indicateurs F en prenant en compte ledit ensemble de données exogènes X pour former un ensemble d'estimateurs Y=(y i..., y],..., y m) correspondant audit ensemble d'indicateurs Y =(y i,.... y i.... y n); et -des moyens (5) pour normaliser chaque estimateur y} en fonction d'une valeur de référence de l'indicateur correspondant y} et d'un écart entre ledit chaque estimateur ~i} et ledit indicateur correspondant y} pour former un ensemble de valeurs standardisées F =(~y i..., ~y J,...,~y m)

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