3D City Modeling on Infrastructure Construction Using Digital Twin

With the acceleration of global informatization, digital twin (DT) technology is gradually infiltrating into all fields of urban infrastructure construction. Technologies based on CAD (Computer aided design) and VR (Virtual reality) provide strong support for DT cities, and provide new ideas for realizing sustainable development and intelligent governance of cities. Based on CAD and VR, this article discusses the implementation method and framework of infrastructure construction in DT cities. A 3D city modeling algorithm based on CAD and VR is proposed. Through the DT modeling and real-time monitoring of urban infrastructure, intelligent management and efficient operation of urban infrastructure can be realized, and the efficiency and safety of urban operation can be improved. The research shows that the accuracy of the proposed algorithm can reach about 95.61% under the condition of continuous iteration. Moreover, the F1-score of the algorithm can reach 95.99%. The results show that the algorithm in this article has certain reliability. Generally speaking, this research provides useful reference and enlightenment for the infrastructure construction of DT cities based on CAD and VR. © 2024 U-turn Press LLC, http://www.cad-journal.net.