With the continuous development of human society, cities in the future will carry an increasing number of people. At present, China is in a period of accelerated urbanization, and the problem of "urban diseases" in some areas is becoming increasingly severe. To solve the problems of urban development, achieve sustainable urban development, and build smart cities has become an irreversible historical trend in the development of cities in the world today. Smart city refers to the use of information and communication technology to sense, analyze, and integrate key information of urban operation core systems, in order to make intelligent responses to various needs including people's livelihood, environmental protection, public safety, urban services, and industrial and commercial activities. By adopting cutting-edge technologies such as visual collection and recognition, various sensors, wireless positioning systems, RFID, barcode recognition, and visual labeling, we aim to build a smart public service and urban management system.