Determination of health status of systems equipped with sensors

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United States of America Patent

PATENT NO 11471113
APP PUB NO 20210321956A1
SERIAL NO

17229899

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Abstract

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A method for determining a health status of a system of interest is proposed. The method comprises acquiring (S1) a time series, extracting (S2) subsequences, selecting (S3) a set of subsequences, classifying (S4) the subsequences of the set into several groups on the basis of at least one criterion of resemblance to at least one reference subsequence, and constructing (S5) a normal operating model of the system of interest. The construction includes, for each group, a modeling (S51) of a representative subsequence and a determination (S52) of an associated weight. The normal model is defined by the modeled subsequences and the associated weights. The method further includes an attribution (S6) of a normality score to each subsequence extracted by comparison with the normal model, an identification (S7) of at least one abnormal subsequence, and a determination (S8) of the health status of the system of interest.

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Patent Owner(s)

  • UNIVERSITÉ DE PARIS; ÉLECTRICITÉ DE FRANCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Boniol, Paul Paris, FR 1 0
Linardi, Michele Paris, FR 1 0
Meftah, Mohammed Aulnay sous Bois, FR 33 252
Palpanas, Themis Paris, FR 9 234
Remy, Emmanuel Paris, FR 1 0
Roncallo, Federico Paris, FR 1 0

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