Abstract
Digital twins are considered to be a new starting point for today’s smart city construction. This paper defines the concepts of digital twins and digital twin cities, discusses the relationship between digital twins and smart cities, analyzes the characteristics of smart cities based on digital twins, and focuses on the five main applications of smart cities based on digital twins. Finally, we discuss the future development of smart cities based on digital twins.
Highlights
Digital twins are considered to be a new starting point for today’s smart city construction
With the rapid development of technologies and industries such as the Internet of Things(IoT) (Kaur et al 2020), big data (Tao et al 2018), cloud computing (Khatib et al 2019) and artificial intelligence(AI) (Kharchenko et al 2020), the construction basis of smart city has gradually evolved from the original static 3D modeling level towards the digital twin level that combines dynamic digital technology and static 3D model (Yan et al 2019), which forms a new concept that digital twin city assists smart city construction
Accurate mapping means that the digital twin city realizes comprehensive digital modeling of urban roads, bridges, manhole covers, lamp covers, buildings and other infrastructures by arranging sensors on the air, ground, underground, and river levels in the physical city, so as to fully perceive and dynamically monitor the city’s operating status, and form the accurate information expression and mapping of the virtual city to the physical city in the information dimension
Summary
Digital twins are PLM (Product Lifecycle Management) c. Digital twins are Physical union platform b. Model driven + Data driven Simulation verification/visualization/control/predict/optimize
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