基于多无人机协同测绘技术的山区地表覆被变化成像分析  

Imaging analysis of surface cover changes in mountainous areas based on multi drone collaborative surveying technology

作　　者：董洁 段丁丁 宋博 王兴中 DONG Jie;DUAN Dingding;SONG Bo;WANG Xingzhong(Beijing Jianyetong Engineering Testing Technology Co.,Ltd,Beijing 102627,China)

机构地区：[1]北京建业通工程检测技术有限公司,北京102627

出　　处：《物探化探计算技术》2025年第1期132-140,共9页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：为了准确监测当前地表覆被情况,全面可靠地分析山区多种地表覆被类型的面积变化,以某省中的某山区作为研究区域,提出基于多无人机协同测绘技术的山区地表覆被变化成像分析方法。结合该研究区域的地形、地势情况,采用人工势场法构建多无人机协同测绘航迹规划模型,完成其地表覆被影像测绘,获取准确的遥感测绘监测结果;利用最大类间方差方法,获取该影像中的变化像元和非变化像元的最优阈值,以此确定地表覆被的变化情况。分析结果显示:该方法可保证多无人机的航行时间误差均在1s内;无人机之间的距离均大于2.5m;能够依据测绘区域情况,完成无人机的协同航迹规划;测绘影像的信息熵均在6.8以上,质量较好,可以准确监测当前地表覆被情况,从而全面呈现山区耕地、林地、草地、湿地、水体、人造地表、未利用地多种地表覆被类型的变化情况,且与区域发展规划一致,可靠性较强。In order to accurately monitor the current surface cover situation and comprehensively and reliably analyze the area changes of various surface cover types in mountainous areas,a mountainous area in a specific province is taken as the research area,while a mountainous area with surface cover change is imaged by analysis method based on multi drone collaborative surveying technology is proposed.Based on the terrain and topography of the research area,a multi-drone collaborative surveying and mapping trajectory planning model was constructed using the artificial potential field method to complete the mapping of surface cover images and obtain accurate remote sensing surveying and monitoring results.Using the maximum inter class variance method,obtain the optimal thresholds for changing and non changing pixels in the image to determine the changes in surface cover.The analysis results show that this method can ensure that the navigation time error of multiple drones is within 1 second.The distance between drones is more significant than 2.5m.Capable of completing collaborative trajectory planning for uncrewed aerial vehicles based on the surveying and mapping area situation.The information entropy of the surveyed images is above 6.8,and the quality is good.It can accurately monitor the current surface cover situation,comprehensively presenting the changes of various surface cover types in mountainous areas such as farmland,forest land,grassland,wetland,water bodies,artificial surface,and unused land.It is consistent with regional development planning and has strong reliability.

关 键 词：多无人机 协同测绘技术 山区地表 覆被变化 成像分析 

分 类 号：TP943[自动化与计算机技术]