RFID DEVICE FOR DETERMINING THE OPERATING STATUS AND IDENTIFYING AN ELECTRIC APPLIANCE

摘要

The present invention relates to a device for identifying an electric appliance when said appliance is powered on, including: a current detector coupled with an electric power cable of the electric appliance in order to detect the passage of an electric current in said cable and to generate an electric signal; a voltage generator for converting the electric signal at the output of the current detector into a DC voltage; an RFID circuit making it possible to store identification information, coupled with an antenna suitable for receiving and transmitting signals towards an RFID reader; the device being characterised in that it includes a control circuit coupled with the voltage generator and with the RFID circuit, said control circuit including means for producing an impedance change of the antenna when the DC voltage is applied, the impedance change making it possible to transmit the identification information to the RFID reader.