Firstly, the concept of Internet of Things is introduced, referring to Internet of Things in 2020. Through EPOSS. Then look at the speeches and reports related to the Internet of Things (there are more meetings and lecture materials in the Internet of Things recently), summarize and analyze, and try to start with the key technologies of the Internet of Things as little as possible in the early stage; Then talk about the application of the Internet of Things (refer to the "Twelfth Five-Year Plan for the Internet of Things"), and it is best to talk about the prospects and prospects of the Internet of Things.