INVESTIGATION OF FACTORS AFFECTING UAV-BASED MINE SURVEYING ACCURACY
Dmytro Polischuk1, Andrii Panasiuk1, Vasyl Mamrai1,2
1 Zhytomyr Polytechnic State University, 10005 Zhytomyr; E-mail: kgt_pds@ztu.edu.ua, kgt_pav@ztu.edu.ua, vmamray@gmail.com
2 Kütahya Dumlupınar University, 43100 Kütahya; E-mail: vmamray@gmail.com
Corresponding author: kgt_pav@ztu.edu.ua
ABSTRACT. The adoption of unmanned aerial vehicles (UAVs) for mine surveying has increased significantly within the extractive industry due to their high operational efficiency, superior measurement accuracy, and reduced susceptibility to human error. The primary application of UAV-based surveying is the volumetric estimation of mined-out spaces and stockpile measurement at mining enterprises. The aim of this study is to evaluate the effects of flight altitude and weather conditions on the accuracy of UAV-assisted mine surveying, and to determine the optimal operational parameters for its implementation. The study was conducted at an amber deposit in the Korosten district. Surveying of the extracted rock mass was performed using a DJI Phantom 4 quadcopter at different flight altitudes under two meteorological conditions. Three repetitive measurements were carried out for each combination of parameters, yielding a total of 30 observations. The reference volume was obtained using a Sokkia 550RXL total station, with subsequent processing in Civil 3D, while UAV data were processed in Agisoft Metashape. The analysis demonstrated that all investigated survey configurations produce deviations within the permissible error tolerance for mine surveying operations. The key factors affecting UAV-based surveying accuracy were identified, and the optimal flight altitude and meteorological conditions were established. The objectivity of the images obtained and the automation of processing ensure high quality results when using UAVs.
Keywords: mine surveying, UAV, photogrammetry, flight altitude, survey accuracy.
DOI: https://doi.org/10.58903/MPIG2663
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