The Internet of Things (IoT) is an important part of the new generation of information technology and the third wave of world information development after computers and the Internet. According to statistics, the scale of China's IoT industry reached one trillion yuan in 2019, and my country has

China's smart meter industry is developing rapidly due to the widespread use of four types of meters, differentiated prices, and the evolution of the Internet of Things. In 2016, China's cumulative shipments of smart meters reached 280 million units, with a compound annual growth rate of 20.