Method and device for analyzing a network of conductors
AssigneeLaboratoire Europeen ADSL Lecom Fastnet
InventorsDominique Garreau, Thierry Fernandez
Life of this patent
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Abstract
To analyze a network of conductors, especially an electrical power supply network, it is planned to measure the spectral (49) and temporal (50) nature of a signal available at a node of the network. An image (49–51) representing this state is produced. This image produced is compared with an expected image (52–55) showing an <<on >> state of one and/or the other of the appliances connected to this network. The state of the appliances, whether on or off, is deduced therefrom. This information can be used to optimize the use of the electrical power or to monitor the activity of the appliances concerned.
Claims20
Method for the analysis of a network of electrical power supply conductors, comprising steps in which:
- an available signal is obtained at a node of the network, a temporal or spectral image of the available signal is produced,
- the image obtained is compared with an expected image that comprises an image indicative of an “on” state or an “off” state of operation of an appliance connected to the network,
- a deduction is made therefrom of an “on” or “off” state of operation for at least one of a plurality of appliances connected to the network and corresponding to the expected image.
Device for the analysis of a network of electrical power supply conductors comprising a circuit for the measurement, at a node of the network, of an available signal, a circuit to produce a temporal image and/or a spectral image of the available signal, wherein that it comprises a circuit to compare the image produced with an expected signal image of a working or non-working appliance operation state, and a circuit to deduce a state of operation of one among several appliances connected to the network and corresponding to this expected image.
A device for the analysis of a network of electrical power supply conductors comprising:
- a plurality of appliances each connected to a node of the network through which power is available to each one of the plurality of appliances;
- a signal injector that outputs an operating condition test signal;
- a bridge linked to the signal injector and linked to each one of the plurality of appliances for delivering the operating condition test signal to each one of the plurality of appliances;
- a signal pass filter between the plurality of appliances and the bridge permitting a reflected signal from a plurality of the appliances to pass through while opposing passage of the network power delivered to the plurality of appliances;
- a processor configured to analyze the reflected signal of each one of the plurality of appliances against a reference signal and determine whether the corresponding appliance is operational based thereon.
Dependencies are inferred from the claim text.