Large earthwork surveying and mapping method based on radar carried by unmanned aerial vehicle

• Main Authors: SHE ZHILIANG, DOU FAPENG, CHEN JINGPENG, WANG JIAN, WU XUEWEI, YANG MING, GUAN KAISHENG, ZHANG QIANG, CHEN SIYU, LIU JINHUI, YANG QISHI
• Format: Patent
• Language: Chinese; English
• Published: 23.09.2022
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GYROSCOPIC INSTRUMENTS; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURVEYING; TESTING

The invention discloses a large earthwork surveying and mapping method based on a radar carried by an unmanned aerial vehicle, and the method reasonably plans the flight route, the flight direction, the flight height, the overlapping degree and other parameters according to the actual situation of a site. And control points are uniformly distributed in the measurement area, so that the precision is improved. The unmanned aerial vehicle carries the laser radar, and flight acquisition is completed according to the set flight parameters. And calculating qualified ground coordinates by using software according to a flight path, an instant position and a flight attitude recorded by rtk of the unmanned aerial vehicle. And drawing a topographic map and calculating the earthwork volume in the southern Cass by using the three-dimensional coordinates of the ground. According to the method, a ground control station controls an unmanned aerial vehicle RTK system and a carrying radar to obtain ground image information in