Building a Smart City Based on Digital Twin Technology (People's Current Review)

Tech 2023-05-31 07:57:33 Source: Network

For Yangpu Bridge in Shanghai, the prestressed tendons, stay cables, beams and other facilities of the main tower are digitally coded and equipped with intelligent sensing equipment, so that the "digital signs" are clear at a glance; Jinan, the "Spring City", is a four-dimensional geological environment visualization information system platform that automatically "cuts" information such as stratigraphic structure, lithology, and karst development characteristics, providing reference for the suitability analysis of rail transit lines; Xiong'an, the "city of the future", plans and builds physical cities and digital cities simultaneously, gathers urban data, and speeds up the construction of the information "hub" for overall management and operation.

For Yangpu Bridge in Shanghai, the prestressed tendons, stay cables, beams and other facilities of the main tower are digitally coded and equipped with intelligent sensing equipment, so that the "digital signs" are clear at a glance; Jinan, the "Spring City", is a four-dimensional geological environment visualization information system platform that automatically "cuts" information such as stratigraphic structure, lithology, and karst development characteristics, providing reference for the suitability analysis of rail transit lines; Xiong'an, the "city of the future", plans and builds physical cities and digital cities simultaneously, gathers urban data, and speeds up the construction of the information "hub" for overall management and operation... Each vivid scene reflects the exploration and innovation of China's urban Digital transformation.

The 14th Five Year Plan and the Outline of Vision and Objectives for 2035 put forward: "Meet the digital era, activate the potential of data elements, promote the construction of a network power, accelerate the construction of a digital economy, a digital society, and a digital government, and use Digital transformation to drive the overall transformation of production methods, lifestyles, and governance methods." With the development of digital and intelligent technologies, digital twin technologies accelerate their application, and comprehensively use perception, computing Modeling and other technologies, digitize the physical urban elements, construct a fully corresponding "replica" in the digital space, and establish a digital twin city with real-time mapping and virtual reality interaction with the real world, which has become an important path to promote scientific urban planning, efficient governance, and then realize Digital transformation.

A city is a complex and open system that includes infrastructure such as buildings, roads, and pipelines, as well as various elements such as people, vehicles, objects, water, and electricity. It crisscrosses the physical space and generates complex data information. Digital twin cities can simulate and simulate various elements of the city, presenting physical and social spaces in the form of information. This can provide guidance for optimizing traffic signal control, energy scheduling, major project cycle management, infrastructure site selection and construction, as well as intelligent warning of potential risks that may arise during urban operation, and provide timely feedback and countermeasures. Digital twin cities optimize the operation of real cities through the analysis and regulation of "virtual" cities, which is expected to make cities more "smart" and promote governance to become "intelligent".

Digital twin cities are an important carrier for achieving digital governance and developing the digital economy, and are also a new type of infrastructure for future cities to enhance long-term competitiveness and achieve sustainable development. The "14th Five Year Plan for the Development of Digital Economy" proposes to "improve the urban information model platform and operation management service platform, and build digital twin cities according to local conditions." In recent years, digital twin cities have been implemented in many parts of China, greatly improving the efficiency of urban fine governance through the "combination of virtual and real". In this sense, digital twin cities are not only the integrated application of new generation information technology in cities, but also a new model of urban construction and governance.

Currently, the construction of digital twin cities is still in the basic construction stage, and there are still problems and challenges in platform construction, data utilization, scenario application, standard system, operation system, and other aspects. For example, digital twin cities involve multiple types of data and are difficult to connect and exchange systems. In the process of promoting the construction of digital twin cities, it is necessary to coordinate and integrate these "basic materials" dynamically, as well as conduct semantic analysis and efficient matching of data and knowledge based on the characteristics of different industries.

City, make life better. In the process of building a digital twin city, actively promoting the integration and coordinated development of physical space and digital space, allowing technological means and humanistic care to progress together and complement each other, can enable the city to continuously meet the growing needs of people for a better life, and continuously transform development achievements into quality of life.

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