Design Of Intelligent Watt-hour Meter Based On Hall Component

With the development of economy in our country, the demand for the electric power is becoming greater in all walks of life, and resulting in electric power supply shortages. Time-sharing accounting will be the trends of alleviating the imbalance between supply and demand and saving the energy sources. The mechanical watt-hour meter doesn't fit time-sharing accounting, so it becomes necessary to develop long-lived, time-sharing accounting and high-tech watt-hour meter.This paper puts forward the method to design an intelligent watt-hour meter based on Hall effect, analyses the principle of power measurement, designs time-sharing measurement module, long-distance communication module and digital display module, and develops hardware circuit and software of intelligent watt-hour meter. The results indicate: the intelligent watt-hour meter can accurately achieve the function of time-sharing accounting, the configuration of which is simple and performances of which is dependable. It is full of value of practicality and society.