The existing three-lane system is the smart remote control switches wiring, switches and the need to live, zero line, light line can work.

现有的智能遥控开关是三线制接线方式，开关需要同时接火线， 零线，灯线才能工作。

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Also it introduced the features of the smart power switches and the way to control the new H-bridge, which had been tested in test-bed and compared to traditional H-bridge.

对智能功率开关的功能特性和采用智能功率开关组成的H桥电路的控制方法与工作原理进行了系统研究，并在试验台上对新的H桥驱动电路进行了试验验证。

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Here is what we got for our tax dollars: automated feeder monitors and switches, a few widgets for the transmission system and a whole heap of smart meters.

FORBES: How Smart Grid Spending Is Skewed