Electrical appliance monitoring systems

摘要

A system for automatically switching off electrical appliances when no one is present; both for safety reasons and to conserve energy. The system comprising: at least one plug-through device for monitoring a power state of an electrical appliance; at least one occupancy detection device to detect human presence in a location of said electrical appliance; and a system controller coupled to said plug-through device and to said occupancy detection device and configured to provide a monitoring signal responsive to a determined combination of a said power state of said electrical appliance and absence of human presence in said location of said electrical appliance.