Driven by the digital wave, the dependence of various industries on the Internet of Things (IoT) is increasing day by day. With the widespread application of smart devices and the continuous upgrade of data transmission technology, the market demand for the IoT has shown explosive growth. This year, the market scale of the IoT is expected to break through the trillion – dollar mark. Since 2018, its scale has doubled, and this growth trend is expected to continue in the next few years, bringing unlimited opportunities to related industries such as industrial control and electrical automation.