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http://dx.doi.org/10.22640/lxsiri.2020.50.1.163

A Study on 3D Model Building of Drones-Based Urban Digital Twin  

Lim, Seong-Ha (Korea Land and Geospatial Informatix Corporation)
Choi, Kyu-Myeong (Korea Land and Geospatial Informatix Corporation)
Cho, Gi-Sung (Department of Civil Engineering, Jeonbuk National University)
Publication Information
Journal of Cadastre & Land InformatiX / v.50, no.1, 2020 , pp. 163-180 More about this Journal
Abstract
In this study, to build a spatial information infrastructure, which is a component of a smart city, a 3D digital twin model in the downtown area was built based on the latest spatial information acquisition technology, the drone. Several analysis models were implemented by utilizing. While the data processing time and quality of the three types of drone photogrammetry software are different, the accuracy of the construction model is ± 0.04 in the N direction and ± 0.03m in the E direction. In the m and Z directions, ± 0.02m was found to be less than 0.1m, which is defined as the allowable range of surveying performance and inspection performance for the boundary point in the area where the registration of the boundary point registration is executed. 1: 500 to 1 of the aerial survey work regulation: The standard deviation, which is the error limit of the photographic reference point of the 600 scale, appeared within 0.14 cm, and it was found that the error limit of the large scale specified in the cadastral and aerial survey was satisfied. In addition, in order to increase the usability of smart city realization using a drone-based 3D urban digital twin model, the model built in this study was used to implement Prospect right analysis, landscape analysis, Right of light analysis, patrol route analysis, and fire suppression simulation training. Compared to the existing aerial photographic survey method, it was judged that the accuracy of the naked eye reading point is more accurate (about 10cm) than the existing aerial photographic survey, and it is possible to reduce the construction cost compared to the existing aerial photographic survey at a construction area of about 30㎢ or less.
Keywords
Drone; SmartCity; Digital Twin; 3D Model building; Photogrammetry;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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