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Topographic Survey at Small-scale Open-pit Mines using a Popular Rotary-wing Unmanned Aerial Vehicle (Drone)

보급형 회전익 무인항공기(드론)를 이용한 소규모 노천광산의 지형측량

  • Received : 2015.10.12
  • Accepted : 2015.10.26
  • Published : 2015.10.31

Abstract

This study carried out a topographic survey at a small-scale open-pit limestone mine in Korea (the Daesung MDI Seoggyo office) using a popular rotary-wing unmanned aerial vehicle (UAV, Drone, DJI Phantom2 Vision+). 89 sheets of aerial photos could be obtained as a result of performing an automatic flight for 30 minutes under conditions of 100m altitude and 3m/s speed. A total of 34 million cloud points with X, Y, Z-coordinates was extracted from the aerial photos after data processing for correction and matching, then an orthomosaic image and digital surface model with 5m grid spacing could be generated. A comparison of the X, Y, Z-coordinates of 5 ground control points measured by differential global positioning system and those determined by UAV photogrammetry revealed that the root mean squared errors of X, Y, Z-coordinates were around 10cm. Therefore, it is expected that the popular rotary-wing UAV photogrammetry can be effectively utilized in small-scale open-pit mines as a technology that is able to replace or supplement existing topographic surveying equipments.

Keywords

Drone;Unmanned aerial vehicle;Photogrammetry;Digial surface model;Orthomosaic image

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  2. Reviews of unmanned aerial vehicle (drone) technology trends and its applications in the mining industry vol.19, pp.4, 2016, https://doi.org/10.1080/12269328.2016.1162115
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  5. Change Monitoring in Ecological Restoration Area of Open-Pit Mine Using Drone Photogrammetry vol.24, pp.4, 2016, https://doi.org/10.7319/kogsis.2016.24.4.097
  6. Comparison of Topographic Surveying Results using a Fixed-wing and a Popular Rotary-wing Unmanned Aerial Vehicle (Drone) vol.26, pp.1, 2016, https://doi.org/10.7474/TUS.2016.26.1.024
  7. Mapping hazardous mining-induced sinkhole subsidence using unmanned aerial vehicle (drone) photogrammetry vol.76, pp.4, 2017, https://doi.org/10.1007/s12665-017-6458-3
  8. New Perspectives for UAV-Based Modelling the Roman Gold Mining Infrastructure in NW Spain vol.8, pp.11, 2018, https://doi.org/10.3390/min8110518
  9. A New GIS-Based Algorithm to Support Initial Transmitter Layout Design in Open-Pit Mines vol.11, pp.11, 2018, https://doi.org/10.3390/en11113063
  10. Comparison of Communication Viewsheds Derived from High-Resolution Digital Surface Models Using Line-of-Sight, 2D Fresnel Zone, and 3D Fresnel Zone Analysis vol.7, pp.8, 2018, https://doi.org/10.3390/ijgi7080322
  11. Open-pit mine geomorphic changes analysis using multi-temporal UAV survey vol.77, pp.6, 2018, https://doi.org/10.1007/s12665-018-7383-9

Acknowledgement

Grant : 광물자원 탐사.개발

Supported by : 산업통상자원부