Production of 1:2000 Zonal Topographic Map and DLG Data Based on Phantom 4RTK UAV Mapping  

作　　者：LIUYanqin 

机构地区：[1]ShanxiTongchangEngineeringSurveyandDesignConsultingCo.,Ltd.,Taiyuan030000,China

出　　处：《外文科技期刊数据库(文摘版)工程技术》2022年第4期167-173,共7页

摘　　要：In recent years, with the development of modern science and technology and the development of industry computer application software, large-scale mapping technology has entered the stage of digital and information mapping. The research and application of digital mapping technology combining UAV low-altitude photography with GPS RTK (network RTK) has become a hot topic. Using the surveying and mapping industry geographic information system data processing software-Photoscan, PIX 4D Mappe, Tsinghua Shanwei EPS2016+ digital mapping software-South CASS, it is possible to obtain large-scale digital topographic maps from multi-source data (UAV data, GPS-RTK data, total station data) collected from field surveying and mapping through multi-mode (stereo image pair survey, point cloud survey, oblique photography, vertical photography). In this paper, based on the UAV Phantom4RTK aerial 1:2000 strip topographic map and Tsinghua Shanwei EPS2016 vertical photography model, the production of large-scale topographic map DLG data with 1: 2000 scale is illustrated as an actual case. The Phantom 4 RTK is a small multi-rotor high-precision aerial survey unmanned aerial vehicle, which is suitable for low-altitude photogrammetry application. It is equipped with centimeter-level navigation and positioning system and high-performance imaging system. It is portable, economical and applicable. After comparing the measured data from the China Haida RTK receiver with the three-dimensional coordinate values of points collected from the three-dimensional model data, and checking the mapping accuracy, both the plane position accuracy and the elevation accuracy can meet the mapping requirement of 1: 2000. The invention provide a low-cost, fast and practical mapping method for enterprise needing to do line engineering survey.

关 键 词：UAV low-altitude photography flying quality image quality model fineness three-dimensional real model cass office editor 

分 类 号：TB[一般工业技术]