A smart electric energy meter is composed of a measurement unit, a data processing unit, a communication unit, etc. It has functions such as electric energy measurement, information storage and processing, real-time monitoring, automatic control, and information interaction. It is one of the basic equipment for smart grid data collection. It undertakes the tasks of original electric energy data collection, measurement, and transmission, and is the basis for information integration, analysis, optimization, and information display. Smart energy meters are mainly composed of measurement units, data processing units, communication units and electronic components (resistors, capacitors, etc.), circuit boards, lithium batteries, etc. In addition to the basic power consumption measurement functions of traditional energy meters, they also have intelligent functions such as two-way multiple rate measurement, user-side control, two-way data communication with multiple data transmission modes, and anti-electricity theft. They are in the form of table-mounted or wall-mounted energy meters and are widely used in intelligent distribution network data collection and smart grid management.