Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Comparison of Characteristics of Drone LiDAR for Construction of Geospatial Information in Large-scale Development Project Area

대규모 개발지역의 공간정보 구축을 위한 드론 라이다의 특징 비교

  • Park, Joon-Kyu (Department of Civil Engineering, Seoil University) ;
  • Lee, Keun-Wang (Department of the Multimedia Science, Chungwoon University)
  • 박준규 (서일대학교 토목공학과) ;
  • 이근왕 (청운대학교 멀티미디어학과)
  • Received : 2019.12.02
  • Accepted : 2019.01.03
  • Published : 2020.01.31
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Abstract

In large-scale land development for the rational use and management of national land resources, the use of geospatial information is essential for the efficient management of projects. Recently, drone LiDAR (Light Detection And Ranging) has attracted attention as an effective geospatial information construction technique for large-scale development areas, such as housing site construction and open-pit mines. Drone LiDAR can be classified into a method using SLAM (Simultaneous Localization And Mapping) technology and a GNSS (Global Navigation Satellite System)/IMU (Inertial Measurement Unit) method. On the other hand, there is a lack of analytical research on the application of drone LiDAR or the characteristics of each method. Therefore, in this study, data acquisition, processing, and analysis using SLAM and GNSS/IMU type drone LiDAR were performed, and the characteristics and utilization of each were evaluated. As a result, the height direction accuracy of drone LiDAR was -0.052~0.044m, which satisfies the allowable accuracy of geospatial information for mapping. In addition, the characteristics of each method were presented through a comparison of data acquisition and processing. Geospatial information constructed through drone LiDAR can be used in several ways, such as measuring the distance, area, and inclination. Based on such information, it is possible to evaluate the safety of large-scale development areas, and this method is expected to be utilized in the future.

국토자원의 합리적 이용과 관리를 위한 대규모 국토개발은 효율적인 사업관리를 위해 공간정보의 활용이 필수적이다. 최근 택지조성이나 노천광산과 같은 대규모 개발지역의 효과적인 공간정보 구축 방안으로 드론 LiDAR(Light Detection And Ranging)가 주목 받고 있다. 드론 LiDAR는 크게 SLAM(Simultaneous Localization And Mapping) 기술이 적용된 방식과 GNSS(Global Navigation Satellite System)/IMU(Inertial Measurement Unit) 방식으로 구분할 수 있는데 드론 LiDAR의 적용이나 각 방식의 특징에 대한 분석적 연구는 부족한 실정이다. 이에 본 연구에서는 SLAM 및 GNSS/IMU 방식의 드론 LiDAR를 이용한 데이터 취득, 처리 및 분석을 수행하고, 각각의 특징과 활용성을 평가하고자 하였다. 연구결과, 드론 LiDAR의 높이 방향 정확도는 -0.052~0.044m로 지도제작을 위한 공간정보의 허용 정확도를 만족하는 것으로 나타났다. 또한 데이터 취득 및 처리 과정의 비교를 통해 각각의 방법에 대한 특징을 제시하였다. 드론 LiDAR를 통해 구축된 공간정보는 거리, 면적, 경사의 측정 등 다양한 활용이 가능하며, 이러한 정보를 기반으로 대규모 개발지역의 안전도를 평가하는 것이 가능하기 때문에 향후 국토개발 현장에서 효과적인 공간정보 구축 방안으로 활용이 기대된다.

Keywords

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