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 trans
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Abstract. 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. Keywords: Smart electricity meter algorithm
AT89C51 microcontroller NILM
1 Introduction Since the initiative to build a global energy internet, the functional requirements of smart grid have been further improved [1]. Smart meters play an important role in the interactive service system between users and the power grid, which has a great impact on the intelligent construction of the entire power grid. Therefore, it is extremely urgent to research smart meters with more advanced functions. Non-intrusive load monitoring technology was first proposed by Hart [1], which can realize load identification function. Load identification is the first step of interactive services, just calculate the total electricity user data sent to the user. However, if the non-intrusive load monitoring (NILM) algorithm can be used for load detection, the calculation and detection of the power consumption and power consumption behavior of each electrical appliance of the user can be realized. It will have a great impact on the electricity consumption of the entire society, and realize more convenient and intelligent interactive services, which will greatly help the construction of the global smart grid. For users, if they can know the use status and power consumption status of each type of electrical appliances, they will be able to better allocate the use time of each type of electrical appliances, which will help to save electricity and ease the user’s voltage. Alleviate the use of electrical power in the entire society and achieve green development of energy conservation and emission reduction. © The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2021 Q. Liu et al. (Eds.): CENet 2020, AISC 1274, pp. 1256–1262, 2021. https://doi.org/10.1007/978-981-15-8462-6_144
Design of Smart Electricity Meter
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In this paper, the hardware circuit, software programming and load recognition algorithm of upper computer are carried out.
2 Hardware Circuit 2.1
Overall Hardware Circuit
The main components of the designed hardware circuit are: master control module, power metering module, display module, storage module, key module, clock module and communic
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