Possibilities of Use of The UAVs of the Average Price Segment for Mapping of Agricultural Resources

Abstract

Purpose. Development of methodical approaches and recommendations for the preparation and implementation of various tasks for obtaining data using UAV, to assess the possibilities and spatial accuracy of the data obtained from the mid-price drones with the purpose of expediency of its use. Methods. Field geodetic surveys, UAV launches, cameral processing of the obtained data with use of the computer equipment. Results. Field geodetic works have been performed for fixing of checkpoints. Some methodological approaches for preparatory pre-flight and flight work have been formulated. The features of conducting flight missions are described. The aerial photography of the explored polygon is represented by various models of drones at different heights. Orthophotomaps and digital relief models have been obtained with using the software product «AgiSoft PhotoScan». There is a discrepancy in the given overlay of photos and actual. For analysis, data with actual overlapping of photographs >70% was used. Received DEM and orthophotomaps were compared with the reference control points. An orthoplane is required to visualize the terrain, DEM - allows you to determine the value of each pixel in height (H). As expected, not all control points coincided with their image on orthophotomapsUsing the «ArcGIS» software system, an analysis of the data has been made, the spatial accuracy of the data obtained is calculated. Conclusions. It has been established that the use of certain models of UAVs at certain heights used in the researches is possible for obtaining scale maps of scale 1: 5000 - 1: 1000. As for the data corresponding to the accuracy of scale 1: 25000, the receipt and use of such data is ineffective.