1, the first wave: the main feature is "smart dust", which advocates the interconnection of various sensor devices to form a network with intelligent functions.
1, the second wave: based on RFID technology, it is advocated to strengthen the management of logistics and logistics information by identifying objects, and at the same time, to form intelligent information mining through information integration.
2. The third wave: with ubiquitous aggregation as the main feature, it advocates that ubiquitous sensing services aggregate massive information, generate new information with application value, realize the wide application of the Internet of Things in various fields, and interconnect anyone, anything, anytime and anywhere, and trigger new application and service models. In addition, the Internet of Things has three basic characteristics: overall perception, reliable transmission and intelligent processing.