Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Moussa Kafal

Wafa Ben Hassen

Jaume Benoit

A computer-implemented iterative method for reconstructing the topology of a cable network, includes the steps of: obtaining a measured time reflectogram Rfrom a signal previously injected into the cable network, initially simulating a plurality of cable network hypotheses (H), and then iteratively executing the following steps: obtaining, for each simulated cable network hypothesis (H), an associated simulated time reflectogram R, evaluating, for each simulated cable network hypothesis (H), an error criterion E(R-R) between the measured time reflectogram Rand the simulated time reflectogram R, applying, to the simulated cable networks, an optimization algorithm having the function of producing a plurality of modified cable networks having, overall, a reduced error criterion E(R-R), replacing the simulated cable networks from the previous iteration with the modified cable networks for the following iteration.

Computer-implemented method for reconstructing the topology of a network of cables, using a genetic algorithm

A method for characterizing a fault in a transmission line network, the method includes the steps of: obtaining a first measured time reflectogram Rfrom a signal previously injected into the network, obtaining a second time reflectogram Rcorresponding to the network in the absence of faults, determining the time difference Rbetween the first measured time reflectogram Rand the second time reflectogram R, identifying, in the time difference R, an amplitude peak characterizing the presence of a fault and its time abscissa indicating the position of the fault, simulating a plurality of time reflectogram hypotheses each corresponding to the network comprising a fault at the identified position, each hypothesis being associated with a different value of at least one parameter characteristic of the fault, selecting the time reflectogram hypothesis closest to the time difference R.

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Les Ulis, France

Moussa Kafal