关键词：非接触式无线电力；电力监控；传感器；数据通信
摘 要：we designed a circuit that inductively harvests electrical energy from the power flowing through the plug prongs when the device is turned on. That signal is rectified into a DC component that charges a capacitor to power the whole network node, while the AC ripple is converted by a sensor mote into a digital communication packet that signifies the amount of power (along with other relevant data) being consumed in a given window of time.