Abstract: Monitoring devices by following and analyzing local current measurements and communicating the data over the power line. Various operation characteristics are extracted from the measurements, such as device profiles, operational status, various deficiencies and user related parameters. Current consumption profiles are derived from the accumulating data, and compared to previous patterns. The monitoring allows controlling operation of the devices, estimating their physical location and communicating messages from the devices regarding e.g. software status, by deliberate operation of the device to generate predefined current use patterns.

Abstract: A system and method for controlling a usage of objects, the method includes: receiving, by a control unit, an indication that a user intends to use an object; wherein the utilization is dependent upon a reception of power from a power supply network; receiving, by the control unit, over a power line communication network and from a power controller associated with the object, a request to determine whether to enable a provision of power from the power supply network; determining, by the control unit, whether to allow a reception of power by the object; and sending to the power controller a power indication representative of the determination.