Järvselja metsade tormikahjustuste seire mehitamata õhusõidukitega

Q4 Agricultural and Biological Sciences
Kaupo Kokamägi, Rauno Künnapuu, Natalja Liba
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引用次数: 1

Abstract

Abstract This paper provides an overview of a small research project. The object of the research was a 16 km2 forested area located in the territory of Järvselja Study and Experimental Forest, Estonia, which was damaged by storms in June 2021. The aim of the study was to investigate whether it is possible and reasonable to estimate the area of storm damage using orthophotos created from photographs collected from unmanned aircraft. The surveying was carried out on July 13–15, 2021. The data was collected via unmanned aerial vehicles with RGB-cameras on board. A multi-rotor drone DJI Phantom 3 Professional and a fixed-wing unmanned aircraft eBee X were used. In total, the eBee drone was flown 11 times to obtain 11,989 photos and the DJI drone 18 times to obtain 2,471 photos. During the project, it became clear that if there are open fields available, it is more efficient to use a fixed-wing type drone for this kind of research. However, in more difficult conditions where there are no clearances suitable for take-off and landing, a multi-rotor drone, such as the DJI, can be used instead. It can be concluded from the results of the work that although it is possible to use an unmanned aircraft for aerial photography of large forested areas, it takes a considerable amount of time for both photography and post-processing. It took 96 man-hours to collect the data and four working weeks to process the data.
摘要:本文概述了一个小型研究项目。该研究的对象是位于爱沙尼亚Järvselja研究和实验森林境内的16平方公里的森林区域,该区域于2021年6月被风暴破坏。这项研究的目的是调查使用从无人驾驶飞机收集的照片制作的正射影像来估计风暴破坏区域是否可能和合理。该调查于2021年7月13日至15日进行。这些数据是通过无人机收集的,无人机上装有rgb摄像机。使用了一架多旋翼无人机大疆幻影3专业和一架固定翼无人机eBee X。eBee无人机总共飞行了11次,获得了11989张照片,大疆无人机飞行了18次,获得了2471张照片。在这个项目中,很明显,如果有开放的领域,使用固定翼无人机进行这种研究是更有效的。然而,在更困难的条件下,没有适合起飞和降落的间隙,可以使用多旋翼无人机,如大疆,代替。从工作结果可以得出结论,虽然可以使用无人驾驶飞机进行大面积森林地区的航空摄影,但无论是摄影还是后期处理都需要相当长的时间。收集数据耗时96个工时,处理数据耗时4周。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Forestry Studies
Forestry Studies Agricultural and Biological Sciences-Forestry
CiteScore
0.70
自引率
0.00%
发文量
0
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