Abstract: The present invention relates to a method for analyzing the electricity consumption of a site provided with a plurality of electrical devices of different types, wherein the method comprises: periodically measuring the current and the voltage over at least one of the electrical phases upstream from the power supply network of the site; and processing a combination of digitized signals in order to determine the distribution of the consumption on the basis of at least some of the devices in accordance with a signature of each of the devices. The processing involves comparing the waveform of the measured current with a library of pre-saved signatures for each of the electrical devices. The signatures comprising at least one parameter based on the waveform of the supply voltage.

Abstract: A method for analysing the consumption of electricity of a site equipped with a plurality of items of electrical equipment of different kinds, comprising at least one sensor for the periodic measurement of the current and/or voltage on at least one of the electrical phases upstream of the network supplying the site, as well as a computer for carrying out processing said method comprising: sampling at least the current signal; applying a Fourier transform to each fundamental period of the current signal; smoothing of said transformed signal; forming a database of signatures; recording, during a long period, candidate signatures liable to be associated with a variation in consumption of one of said items of equipment; and next using said database of reference signatures for qualifying the events occurring on said network.

Abstract: The present invention relates to a method for analyzing the electricity consumption of a site provided with a plurality of electrical devices of different types, wherein the method comprises: periodically measuring the current and the voltage over at least one of the electrical phases upstream from the power supply network of the site; and processing a combination of digitized signals in order to determine the distribution of the consumption on the basis of at least some of the devices in accordance with a signature of each of the devices. The processing involves comparing the waveform of the measured current with a library of pre-saved signatures for each of the electrical devices. The signatures comprising at least one parameter based on the waveform of the supply voltage.