The iot app, a public service that provides online services to individuals, enterprises and organizations, business services, smart terminals and user management capabilities, was launched on 18 august 2016. Following an eco-civilization approach, the development of an industry that explores low-carbon, environmentally sound, water-efficient and sustainable development, and the introduction of a car wash service, each car uses only one tenth of the amount of water that it needs to be cleaned in a real shop, is a real reduction in the use of water resources and the protection of the environment, starting with the small matter of each car wash. By 2019, china already had 220 million motor vehicles, and car wash fees had become an essential consumer expenditure for the car community, with enormous market potential. However, a large proportion of the city's drivers are early and late workers, who are more in need of flexible car wash services. The real need to do so is to save the car o...