Digital twin city framework and global practice report From World Economic Forum

The following is the Digital twin city framework and global practice report From World Economic Forum recommended by recordtrend.com. And this article belongs to the classification: Strategic emerging industry, Internet of things, research report.

The global digital twin market is booming. It is predicted that by 2030, the application of digital twin technology will save us $280 billion for urban planning, construction and operation. In terms of market size, the global digital twin market will reach US $3.1 billion in 2020. It is expected that the global digital twin market will grow at a compound annual growth rate of 58% and reach US $48.2 billion by 2026.

China’s digital twin city construction market is active. According to statistics, the total investment scale of China’s new smart city in 2020 is about 2.4 trillion yuan. Especially in recent years, China’s urban information model (CIM) construction projects have shown a rapid growth trend year by year. The number of projects has increased from 2 in 2018 to 72 in 2021 (as of September 2021). The total investment has also increased year by year with the number of projects. In August 2021, the world economic forum and the China Institute of information and communications jointly solicited cases of digital twin cities. According to the case statistics of the project, more than half of the investment projects with a value of 10 million yuan, 89% of the investment projects with a value of more than 1 million yuan, and the average investment of the project reached 28 million yuan.

The 2022 digital twin city framework and global practice insight report released by the world economic forum and the China Academy of communications and communications puts forward four technical characteristics, three visions and nine key elements to promote the development of digital twin cities, as well as ideas and suggestions for building high-quality digital twin cities that can meet current challenges. The research results have enlightenment significance for urban managers exploring the construction of digital twin cities around the world, as well as entrepreneurs and investors actively embracing digital twin technology and promoting its application.

Digital twin cities have four technical characteristics

Accurate mapping between physical city and digital city: by using Internet of things (IOT), geographic information system (GIS), intelligent building model technology (BIM), etc., digital twin cities can present the overall picture of physical city operation at different levels and scales, including all elements of static geographical entities such as urban buildings, traffic roads, vegetation, water system, urban components and pipelines, as well as people, vehicles, terminals Various organizations and other subjects of urban dynamic changes.

Deep insight into the digital city: in the digital space, based on the aggregation and integration of the data collected by the physical city, it can analyze the urban congestion, building energy consumption, whether the planning is reasonable, whether the underground pipeline needs maintenance, etc., gain insight into the urban operation risk, and present the real scene effect in the way of digital simulation. Users can modify the signal light timing, control the high power consumption facilities, change the planning and site selection, etc, Develop strategies and measures to improve the operation of the city.

Virtual real interaction between digital city and physical city: physical city can be enriched, extended and expanded in digital space. For example, urban managers can interact with physical city based on digital platform interface, search entity and frame statistical analysis, change urban layout, and simulate the changes of urban indicators such as congestion and ecology; With the help of virtual reality eyes, urban residents can get digital services such as distance learning, tourism roaming and so on.

Intelligent intervention of digital city to physical city: in the digital space, the digital twin city platform can present the urban operation state in real time. Once the physical city has an accident, disaster and other alarms, the urban managers can quickly make decisions and deploy corresponding countermeasures. In addition, they can also predict the possible problems or risks of the city through in-depth learning and simulation, so as to prevent them, so as to reduce property losses and ensure people’s safety.

Three visions of digital Twin Cities

Efficient and intensive urban production and operation. In the digital twin city, the dynamic track of urban hazardous chemicals transportation, various indicators of underground pipe network and the deduction effect of natural disasters are presented in real time. In some extremely poor production environments such as high risk, high temperature and high humidity, the machine replacement, unmanned operation, remote inspection and remote operation control are fully realized to realize “zero damage” of urban production; Urban planners can easily carry out digital design, urban builders can remotely dispatch resources and monitor progress, urban managers can analyze and deduce the decision-making effect anytime and anywhere, the urban operation efficiency is comprehensively improved, and the labor input, material input and urban energy consumption are greatly reduced, forming a more green, intensive and efficient development model.

Urban living space is livable and convenient. In digital twin cities, urban residents can dynamically and visually understand urban congestion to change travel plans; No matter where you are, you can experience the world tourist attractions; Carry out teaching experiments such as physical chemistry through virtual reality technology; Enhance reality and virtual interaction to obtain travel navigation services; Urban residents can easily feed back urban problems and needs anytime, anywhere, and follow up the rectification of problems; Real time access to urban emergency, disaster and other early warning information and rapid access to rescue services; Narrow the differences between online and offline experiences, and public services such as health care and education will benefit more people through digital twin cities.

Urban ecological environment is sustainable. In digital twin cities, urban managers can dynamically understand the heat island effect, environmental pollution, climate change, energy utilization and other conditions in real time, intelligently analyze the regional gap of resource allocation, and automatically formulate strategies for rational flow and optimal matching of resources. For example, the urban green space area is rapidly formulated according to the heat island effect, and the infrastructure deployment density and signal light timing can be dynamically adjusted and planned according to population density and traffic conditions, The environmental carrying capacity has been greatly improved, the layout of urban resources is more reasonable and urban development is more sustainable.

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