METHOD FOR MARKING BUNDLES OF POWER LINES FOR DIAGNOSIS BY REFLECTOMETRY AND CORRESPONDING KIT
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Accused Products
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 (S50) electric markers having different frequency characteristics onto the branches of the bundle; injecting (S52) a test signal into the bundle from the input point; receiving (S54) 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 (S56) 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 (S58) 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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Citations
28 Claims
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1-13. -13. (canceled)
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14. A method for diagnosing, by reflectometry, a bundle of electrical lines which has at least one input point and a plurality of branches, the method comprising:
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inserting electrical tags in the branches of the bundle, the electrical tags having frequency characteristics that differ from one another; injecting a test signal into the bundle from a given input point; receiving, at the given input point, a set of reflected signals produced by reflections of the test signal in the branches of the bundle; analyzing the set of reflected signals by identifying the electrical tags and assigning each reflected signal to one of the branches of the bundle based on the frequency characteristic of the electrical tag inserted in said branch; and identifying the presence/absence of a fault in said branch by comparing the reflected signal assigned to said branch to a reflected signal model obtained by modeling the reflection of the test signal in said branch in the absence of any faults in said branch. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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23. A bundle of electrical lines which has at least one input point and a plurality of branches, comprising a plurality of electrical tags each inserted in one of the branches of the bundle, the branches provided with a respective one of the electrical tags being marked branches,
wherein the electrical tags have frequency characteristics that differ from one another, so that the respective frequency characteristics allow characterizing one marked branch relative to the others by internal reflections in the bundle that are induced by a test signal injected from a given point during a diagnosis by reflectometry.
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26. A kit for diagnosis, by reflectometry, of a bundle of electrical lines which has at least one input point and a plurality of branches, comprising:
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a plurality of electrical tags each adapted for insertion in one of the branches of the bundle, the electrical tags having frequency characteristics that differ from one another and are adapted to transfer a signature in reflected signals produced in the branches by reflections of a test signal during a diagnosis by reflectometry; a test signal generation module adapted for connection to a given input point and for injecting a test signal into the bundle from the given input point; a detection module for detecting electrical signals, adapted for connection to the given input point and for receiving a set of reflected signals produced by reflections of the test signal in the branches of the bundle; and a processing module adapted for connection to the detection module and for analyzing the set of reflected signals by identifying the electrical tags and assigning each reflected signal to one of the branches of the bundle based on the frequency characteristic of the electrical tag inserted in said branch, and for identifying a presence/absence of a fault in said branch by comparing the reflected signal assigned to said branch to a reflected signal model obtained by modeling the reflection of the test signal in said branch in the absence of any fault in said branch. - View Dependent Claims (28)
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Specification