Journal of Geodesy and Geoinformation Science ›› 2021, Vol. 4 ›› Issue (4): 113-120.doi: 10.11947/j.JGGS.2021.0409

• Smart City Review • Previous Articles    

Logical and Innovative Construction of Digital Twin City

Xinchang ZHANG1(),Shaoying LI1,Qiming ZHOU2,Ying SUN1   

  1. 1. School of Geography and Remote Sensing, Guangzhou University, Guangzhou 510006, China
    2. Department of Geography, Hong Kong Baptist University, HongKong 046000, China
  • Received:2020-09-15 Accepted:2021-01-15 Online:2021-12-20 Published:2021-12-30
  • About author:Xinchang ZHANG,E-mail:
  • Supported by:
    National Natural Science Foundation of China(42071441);National Key R&D Program of China(2018YFB2100702);Spatio-temporal Information Cloud Platform Project of Smart Guangzhou(GZIT2016-A5-147)


This paper first introduces the background and basic concept of digital twin city, then analyzes the relationship between digital twin city and smart city. Next, it introduces the primary supporting technologies for the construction of a digital twin city, and finally summarizes the current application status and development trends regarding digital twin city. The authors argue that digital twin technology will face challenges in regards to data, basic knowledge base, system integration, and talent issues if it is to be more widely applied in the construction of the smart city. Additionally, the authors propose institutional and technical suggestions for solving these problems at the macro and micro levels.

Key words: smart city; digital twin; Internet of Things(IoT); artificial intelligence (AI)