Patent ID: 8712732

Claim:
An apparatus configured to detect an electrical state of one or more electrical devices, the one or more electrical devices are coupled to an electrical power infrastructure and generate high-frequency electrical noise on the electrical power infrastructure, the apparatus comprises: a processing module configured to run on a processor of a computational unit; and a sensing device configured to be coupled to an electrical outlet, the sensing device comprising: a data acquisition receiver configured to receive the high-frequency electrical noise via the electrical outlet and convert the high-frequency electrical noise into one or more first data signals when the sensing device is coupled to the electrical outlet, wherein: the electrical outlet is electrically coupled to the electrical power infrastructure; the sensing device is in communication with the computational unit; the processing module is further configured to identify the electrical state of the one or more electrical devices at least in part using the one or more first data signals; the high-frequency electrical noise comprise substantially continuous electrical noise on the electrical power infrastructure in a ten kilohertz to three megahertz range; and the substantially continuous electrical noise comprises (a) first electrical noise that is identifiable on the electrical power infrastructure for a first length of time that is greater than one alternating current electrical cycle, or (b) second electrical noise that is identifiable on the electrical power infrastructure for a second length of time that is less than one alternating current electrical cycle but the second electrical noise are repeated in three or more alternating current electrical cycles.