The metering of electric power coming into the home is going electronic, replacing the long-established electromechanical power-line meter (from the 1890s) with all-electronic smart meters. These meters can also measure parameters in addition to basic power consumption. But more importantly, in conjunction with RF and other circuitry, they can communicate their data wirelessly to various reading systems, as part of Automatic Meter Reading and an Advanced Metering Infrastructure.
In this article, Austin Harney of Analog Devices explains both the benefits of electronic meters, as well as the different system-level configurations in which they are used. The article also looks at a representative smart-meter IC, and the various reading systems employed.
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