Digital twin research from CIM to urban underground space

original english version

BIM related concepts; BIM is the English abbreviation of Building Information Modeling (Building Information Modeling). It is a method that uses digital means to express the physical and functional characteristics of a construction project. It uses a multi-dimensional simulation digital and visualization platform to combine all aspects of the project. A method of integrating information to form an engineering data model.

CIM related concepts; from a theoretical and empirical point of view, there is no doubt that "BIM + Internet" will change the construction industry. At the same time, as smart city construction becomes a priority for the government, a more ambitious technical concept - CIM (City Imformation Modeling) will begin to emerge.

Judging from the experience of smart city construction in the past 20 years, building a smart city must start with digitizing the city or building a digital city first. Otherwise, a large number of smart city applications will not be developed and the application value will be limited.

Concepts related to digital twins; currently, the digital wave represented by new technologies such as the Internet of Things, big data, and artificial intelligence is sweeping the world. The physical world and the corresponding digital world are forming two systems that develop in parallel and interact with each other. The digital world exists to serve the physical world, and the physical world has become efficient and orderly because of the digital world. Digital twin technology emerged as the times require, gradually extending from manufacturing to urban space, profoundly affecting urban planning, construction, and development.

Digital twins originated from perception control technology and thrived from comprehensive technology integration innovation. Digital twin city is an emerging technological path for building new smart cities in the context of major breakthroughs in information technologies such as perception modeling and artificial intelligence. It is a path to intelligent cities and sustainable operations. The cutting-edge advanced model is also a city-level innovation platform that attracts high-end intellectual resources to participate and continuously iteratively updates from local application to global optimization.