Aplicação do método aerofotogramétrico em levantamentos planimétricos e projetos de Engenharia Civil: estudo de caso IFAP-Campus Santana

Abstract

This study explores the potential of aerial photogrammetry with RPA (Remotely Piloted Aircraft) for land regularization of IFAP-Campus Santana, located in Santana, Amapá. It addresses the concepts of aerial photogrammetry, georeferencing and their applications in engineering, with emphasis on civil construction. The integration of these technologies aims to improve the processes of mapping and regularization of areas, providing greater agility, precision and economy. The study used a geodetic RTK GPS from the FOIF brand (IFAP) and CHCNAV (UNIFAP) the DJI MAVIC 2 AIR Pro aircraft to map the campus area. The aircraft’s flight captured aerial images that were processed to generate the orthophoto and the Digital Elevation Model (DEM) of the terrain. A specific software was used to generate the orthomosaic of the mapped region, an exclusive product of aerial photogrammetry with RPA. In addition, it will demonstrate the feasibility of aerial photogrammetry with RPA for land regularization of IFAP-Campus Santana. Accurate and updated mapping can, through the orthophoto and the DEM, provide a georeferenced and detailed representation of the campus area, allowing the precise identification of its limits and characteristics. Data collection and image processing are carried out quickly and efficiently, significantly reducing the time required for land regularization. The use of RPA is a more economical alternative compared to traditional mapping methods, such as terrestrial topography. The study evaluated the use of drones to create an economical cartographic map, capturing 724 images in an area of 10 hectares. The average accuracy was 7.19 cm per pixel, with a discrepancy of up to 0.15 meters between the positions recorded by the GPS during the collection of the images and the corrected positions in the map processing. The results obtained were within the error range in planimetric topographic surveys.