Application of unmanned aerial vehicles (UAV) Phantom 4 RTK connected to CORS station in creating large-scale topographic maps

Abstract

The article focuses on the use of Unmanned Aerial Vehicles (UAV) Phantom 4 RTK technology connected to CORS stations for mapping terrain at a scale of 1:2000 in the Dai Yen area of Halong City, Quang Ninh province. The UAV data was processed using Agisoft Metashape Professional and Global Mapper software. This technology has advantages over traditional surveying methods in terms of requiring less labor, achieving high accuracy (due to the high resolution of the cameras and the UAV's ability to capture images at low altitude and slow speed), and measuring areas with complex and difficult terrain. It also reduces the time required for surveying and mapping compared to other devices.