The future urban planning and management is also the category of smart cities, and smart cities must first establish a perception system. Every part, including the city, has precise coordinates, and it must be informatized. In the future, the perception system of cities will have multiple levels, including remote sensing satellites in the sky, followed by low-altitude drones, and then the Internet of Things on the ground, forming a three-dimensional city perception system, so as to realize information and intelligent management.
A city is a living body, it has a breathing, digestive system, an excretory system, and a city smart brain responsible for centralized processing. Therefore, the operation of the future city will be a combination of cloud, edge and end. Each end has an intelligent decision-making system, and each side also has an intelligent decision-making system, which is then aggregated to the cloud to form a multi-source and multi-type data set. The three cooperate with each other, and then access the analysis of big data and intelligent computing processing system, and feedback control system. These systems are coordinated through time, space and location, so as to achieve the purpose of seeking advantages and avoiding disadvantages. The goal of urban operation and management is to seek advantages and avoid disadvantages. Finally, the collaborative interaction between the physical city and the virtual city is realized, thus realizing the true smart city, which we call the digital twin of the smart city.
All in all, the realization of the above functions is based on accurate spatiotemporal information, which requires the coordination of time, space, and location, and cannot be separated from the support and services of Beidou and surveying and mapping geographic information technology.
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