| 摘要 |
In one embodiment, electrical appliances in a household are connected to a power supply through power limiters that are further coupled to a controller. The power limiters include power sensors. Abnormal power consumption situations are detected by the power sensors. A communication unit coupled to the controller is triggered to communicate the abnormal situations to a personal computing and communication device of in a communication network. A user may send instructions to the controller to change operation modes of the appliances. In another embodiment, subsystems of an electrical appliance are connected to a power supply through power limiters.
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