消费级无人机与GNSS接收机在地形图测绘中的应用及精度分析

Application and Accuracy Analysis of Consumer UAV and GNSS Receiver in Topographic Mapping

摘要:

随着倾斜摄影测量技术和人工智能的发展，消费级无人机在测绘行业得到了较好的应用。本文主要利用大疆精灵4和GNSS接收机，采用现场外业航拍、三维建模、空三解算、图形绘制等技术方法对测区进行大比例尺地形图测绘，利用全站仪对特征房角点进行地形图精度分析。通过实例分析，测图精度满足1∶500大比例尺地形图要求，提高了工作效率、节约了成本。该方案弥补了倾斜摄影测量平台价格昂贵、操作困难、技术人员素质较高的缺陷，广泛应用于大比例尺地形图测绘，为同类工程提供了参考方案。

Abstract:

Accompanying with the development of tilt photogrammetry technology and artificial intelligence, consumer UAV has been well applied in surveying and mapping industry. In this paper, Dajiang spirit 4 and GNSS receiver are mainly used to map the large-scale topographic map in the survey area by using technical methods of field aerial photography, three-dimensional modeling, three-dimensional solution and graphic drawing. The topographic map accuracy of the corner points of the characteristic room has been analyzed by using the total station. Through the example analysis, the mapping accuracy can meet the requirements of large-scale topographic map with the scale of 1∶500, improve the work efficiency and save the cost. The application makes up many defects of the inclined photogrammetry platform, such as high price, difficult operation and high quality of technicians. It is widely used in large-scale topographic map mapping, and provide a reference scheme for similar projects.