Smart City Gnosys

Smart city article details

Title From Real 3D Modeling To Digital Twin Modeling; [从实景三维建模到数字孪生建模]
ID_Doc 27247
Authors Zhu Q.; Zhang L.; Ding Y.; Hu H.; Ge X.; Liu M.; Wang W.
Year 2022
Published Cehui Xuebao/Acta Geodaetica et Cartographica Sinica, 51, 6
DOI http://dx.doi.org/10.11947/j.AGCS.2022.20210640
Abstract From real 3D modeling to digital twin modeling is the basic requirement for the construction and development of the country's digital economy and smart society. This paper discusses the connotations and key technologies of real 3D modeling and digital twin modeling, and introduces three typical application scenarios: digital villages, future communities and intelligent railways. Wide-area real 3D modeling is facing challenges in low-cost and efficient data collection and intelligent automated modeling and dynamic updating. There are still key technical bottlenecks in the integrated expression of all-element holistic representation data and mechanism models for digital twin modeling at the city level or major engineering level. Surveying and mapping technology is in urgent need of multi-disciplinary cross-integration innovation, breakthroughs in organic collaboration between the sky and the ground, real-time and dynamic acquisition of multi-detailed real 3D data, automated intelligent processing of multi-specialty, multi-scale and multi-modal spatio-temporal data, and detailed 3D construction of complex scenes under incomplete data conditions. Core key technologies such as dynamic construction of full-life-cycle digital twin models that combine characterization data and mechanism models to form general geospatial intelligence to achieve high-quality development of surveying and mapping technology and an irreplaceable and more powerful basic support for economic and social development. © 2022 SinoMaps Press. All rights reserved.
Author Keywords digital China; digital twin model; general geospatial intelligence; real 3D model; smart society


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