Design of Smart Electricity Meter with Load Identification Function

With the development of the electronic industry, smart meters are more and more required by people. Compared with traditional mechanical meters, smart electricity meters have more functions, such as multi-rate metering, intelligent interaction, data transmission, safe electricity, etc. NILM algorithm, also known as Non-intrusive load monitoring algorithm, can analyze the power consumption data through PC to show more detailed power consumption to users, which can greatly improve the power consumption experience of users. Based on AT89C51 microcontroller, ADE7755 energy measurement chip, LCD1602 display module, etc., this paper designed the overall hardware circuit of smart meter; In the software part, it not only realized basic ability of smart meters, but also realized the load recognition function by using the NILM algorithm.