핸드형 및 백팩형 레이저 스캐너의 모델링 활용방안

Today, it is widely used in important decision-making through design based on 3D drawings and the final results through 3D modeling, rather than designs based solely on 2D drawings. This is a positive function of the digital twin. Currently, 3D spatial information modeling can be acquired with a variety of equipment depending on the purpose. The various purposes include those that require rapid acquisition, those that require high accuracy and precision, and those that increase or decrease the resolution of data that will determine the quality of the data. The 3D modeling construction equipment that makes digital twin possible allows acquisition of data by appropriately converging LiDAR(Light Detection And Ranging), GPS(Global Positioning System), IMU(Inertial Measurement Unit), and cameras according to the purpose. Currently, terrestrial LiDAR is a product that shows high quality and high accuracy by converting indoor spaces into digital twins. In order to secure high location accuracy in indoor spaces, terrestrial LiDAR is used using T/S (total station) used in existing surveying. Research has been conducted to verify the location accuracy of the data acquired, and high-quality indoor spatial information has been produced by creating 3D modeling based on the verified accuracy. In this study, we compared the acquisition speed and data processing speed of two types of newly researched and developed mobile scanners in the same space, using terrestrial LiDAR, backpack-type laser scanner, and hand-held laser scanner, and compared based on terrestrial LiDAR. We verify the performance and conduct research on the use of 3D modeling using the acquired 3D Pointcloud. As a result of the study, it was confirmed that the point cloud created by each laser scanner shows a certain level of error and that 3D modeling can also be used.