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.

Date of Patent:
Jan. 22, 2019

Filed:

Jun. 19, 2015
Applicants:

Centre National DE LA Recherche Scientifique—cnrs, Paris, FR;

Ecole Superieure D'electricite, Gif sur Yvette, FR;

Inria—institut National DE LA Recherche En Informatique ET En Automatique, Le Chesnay, FR;

Inventors:

Florent Loete, Massy, FR;

Michel Sorine, Sartrouville, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/11 (2006.01); G01R 31/00 (2006.01); G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
G01R 31/11 (2013.01); G01R 31/008 (2013.01); G01R 31/086 (2013.01);
Abstract

Disclosed is a method for diagnosis by reflectometry of a bundle of power lines including an input point and a plurality of branches, including the following steps: inserting (S) electric markers having different frequency characteristics onto the branches of the bundle; injecting (S) a test signal into the bundle from the input point; receiving (S) a set of reflected signals produced by reflections of the test signal in the branches; analyzing all the reflected signals by identifying the markers and by assigning (S) each reflected signal to one of the branches according to the frequency characteristic of the marker inserted onto the branch; and identifying the presence/absence of a defect in the branch by comparing (S) the reflected signal assigned to the branch with a reflected signal model obtained by modelling the reflection of the test signal in the branch in the absence of any defect in the branch.


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