With the continuous development of human society, cities in the future will carry more and more people. At present, my country is in a period of accelerated urbanization, and the problem of "urban disease" in some areas is becoming more and more serious. In order to solve the problems of urban development and achieve sustainable urban development, building smart cities has become an irreversible historical trend in urban development in the world today. Smart city is the use of information and communication technology to sense, analyze, and integrate various key information of the core system of urban operation, so as to make intelligent responses to various needs including people's livelihood, environmental protection, public safety, urban services, and industrial and commercial activities. . Using top technologies such as visual collection and identification, various sensors, wireless positioning systems, RFID, barcode identification, visual labels, etc., it will build a smart public service and urban management system.