WIRELESS ELECTRONIC DEVICE FOR AUTOMATIC CONNECTION AND DISCONNECTION OF AN ELECTRIC POWER AND RESPECTIVE METHOD

摘要

This invention is directed at automatically connecting electric current in a location (e.g. hotel rooms and the like) in the presence of a person and automatically disconnecting it when the person leaves. It comprises a wireless portable signal transmitter and a fixedly-attached receiver connected to the mains supply of the location. The transmitter periodically sends a signal in a predefined manner. When the receiver receives the signal, it causes a main circuit breaker to close and thus provides the location with electricity, and the receiver causes the circuit breaker to open automatically after a period of time longer than those periods of transmission. If the transmitter is located within the reception range of the receiver and sends a signal within the predefined timing to the receiver, the receiver maintains the circuit breaker closed and if the transmitter is unavailable (detected by absence of any signal from the transmitter), the receiver opens the circuit breaker and disconnects electricity from the location.