With the investment of billions of IOT devices in the market and the growth of trillions of market shares, we have to go through strict consideration in deciding the structural design of edge node sensors or intelligent nodes in order to make the right choice. These micro edge sensors not only provide important data, but also ensure its safety. At the same time, we should adopt the lowest power consumption, cost and occupied space. Some complex processing tasks of edge nodes can be executed in the IOT gateway, which brings not only security intelligence, but also more. The main components of the IOT system include edge node sensors or modules, which are mainly used to collect sensor data. The IOT gateway is used to process and integrate the data of all sensors and maintain the communication connection with the cloud server or other edge nodes. The cloud server is used for non real-time data analysis and storage. Finally, the mobile application is used to render and display the res...