Evaluation of the accuracy of volume calculation obtained by UAV

Authors

DOI:

https://doi.org/10.18227/1982-8470ragro.v14i0.6321

Keywords:

Remotely piloted aircraft (RPA). Digital Elevation Model (DEM). GNSS Receiver.

Abstract

The emergence of increasingly accurate, fast, and inexpensive tools in the acquisition of data for the management base suitable for each type of environment is fundamental in the development of sustainable engineering. Based on this, the evaluation of the accuracy of the volume calculation performed using Digital Terrain Models (DTM’s), generated by images of Unmanned Aerial Vehicle (UAV) was carried out. The study was conducted in the area of the new landfill in the municipality of Fortaleza, state of Ceará, in a waste stabilization pond. Two DTM’s were generated and evaluated. The first was generated by collecting points from a Global Navigation Satellite System (GNSS) receiver, using 445 points, whereas the second was generated by aerial images obtained through a multirotor UAV, with 17 checkpoints and 10 Ground Control Points (GCP’s). With the two DTM’s of the GNSS Receiver and the UAV, the volume of the stabilization pond was calculated using the TopoEVN and Pix4D software, respectively. The estimated pond volume obtained through the Global Positioning System (GPS) data was 48548,33 m³, while by the UAV DTM, it was 48504,9 m³. The accuracy of the volume data obtained by DTM generated by UAV, even with considerable flight height (120 m), presented a result with variation less than 1% compared to those arising from conventional topography, thus indicating high reliability and data accuracy.

Author Biographies

Fernanda Helena Oliveira da Silva, GTA Educação & Tecnologia

Analista de conteúdo da GTA Educação & Tecnologia, empresa do Grupo Transitar & Associados.

Éder Ramon Feitoza Lêdo, GTA Educação & Tecnologia

Doutor em Engenharia Agrícola e Diretor da empresa GTA Educação & Tecnologia, empresa do Grupo Transitar & Associados.

Caike Silva Candido Damasceno, GTA Levantamentos

Pos graduado em Geoprocessamento e Analista de geoprocessamento na empresa GTA Levantamentos, empresa do Grupo Transitar & Associados.

José Adriano da Silva, GTA Levantamentos

Mestre em Engenharia Agrícola e Diretor de projetos da empresa GTA Levantamentos, empresa do Grupo Transitar & Associados.

Iderlan Medeiros de Brito Alves, Grupo Transitar & Associados

Pos graduado em Geoprocessamento de imóveis e Diretor do Grupo Transitar & Associados, empresa especializada em serviços de topografia e engenharia.

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Published

31/10/2020

Issue

Vol. 14 (2020)

Section

Natural Resources of Semiarid

License

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