摘要
传统的水利测绘方法受高差大、水面多、河岸呈带状等不利环境因素限制,效率较低。无人机摄影测量因其影像质量高、作业效率高等优势,在水利测绘领域逐渐受到重视。基于无人机摄影测量理论和技术,系统归纳了无人机摄影测量内外业数据处理流程,使用华测P330Pro电动垂起固定翼无人机对丹江口大坝库区部分地区进行免像控大比例地形图测绘,制作大坝及两岸DOM模型,并分析了成果数据精度。结果表明:影像精度水平误差在10 cm范围内,满足精度指标。该方法的内外业总计平均人力为8人/d,相比传统单镜头无人机测绘节省40%,同时节省了30%成本,测绘效率显著提升。
Due to unfavorable environmental factors such as large elevation differences,multiple water surfaces and banded river banks,traditional water conservancy surveying methods have a low efficiency.UAV photogrammetry has gradually gained attention in the field of water conservancy surveying and mapping for its high image quality and high operational efficiency.Based on the theory and technology of UAV photogrammetry,the data processing flow for both internal and external work were systematically summarized.Huace P330Pro electric vertical fixed-wing UAV was used to conduct large-scale topographic mapping of Danjiangkou Dam,some of which were free from image control,and DOM models of the dam and both banks were established.The accuracy of the results were analyzed.It showed that the horizontal error was within 10 cm,which met the accuracy index.The average manpower for this project was 8 people per day,which saved 40%of time and 30%of cost comparing to the traditional single lens UAV surveying.The efficiency of dam surveying and mapping was significantly improved.The research can provide a reference for subsequent water conservancy surveying and mapping projects.
作者
魏工哲
周浩
池晓壮
WEI Gongzhe;ZHOU Hao;CHI Xiaozhuang(Key Laboratory of Earthquake Geodesy,Institute of Seismology,China Earthquake Administration,Wuhan 430071,China;National Observation and Research Station of Gravitation and Earth Tide,Wuhan 430071,China;Key Laboratory of Earthquake Dynamics,School of Disaster Prevention Science and Technology,Langfang 065201,China)
出处
《水利水电快报》
2023年第12期31-35,共5页
Express Water Resources & Hydropower Information
基金
中国地震局地震研究所基本科研业务费专项资助项目
中国地震局地壳应力研究所基本科研业务费专项资助项目(IS202236336)
湖北省地震局基础科研基金项目(2022HBJJ039)
关键词
垂起固定翼无人机
地形测量
大比例尺测绘
水利测绘
丹江口大坝
vertical fixed wing UAV
topographic surveying
large-scale mapping
water conservancy surveying and mapping
Danjiangkou Dam
