I. Introduction
Internet of Things Terminal (IOTT) refers to an information collection node installed and deployed in a specific area that can collect, process and transmit certain information [1]. This information can be environmental parameters, such as temperature, humidity, smoke concentration, light intensity, etc., or behavioral parameters, such as human movements, expressions, etc[2]. The terminal transmits and exchanges this information through the wireless communication module, so that multiple IoT terminals can work together in the area, thus forming a wireless communication network based on the Internet of Things terminal, that is, the Wireless Sensor Network (WSN) [3]–[4]. As more and more types of IoT terminals are used in military tracking [5], industrial control [6]–[7], environmental monitoring [8]–[9], smart home [10]–[12], medical observation [13]–[14] and other fields, the tasks performed by IoT terminals are developing in the direction of diversification and complexity.