Unmanned aerial vehicle remote sensing system and unmanned aerial vehicle remote sensing method

Abstract

The embodiment of the invention discloses an unmanned aerial vehicle remote sensing system and an unmanned aerial vehicle remote sensing method. The unmanned aerial vehicle remote sensing system comprises a first supporting bearing, a second supporting bearing, a first motor, a second motor, a third motor, a first azimuth angle adjustment unit, a second azimuth angle adjustment unit, a third azimuth angle adjustment unit, an azimuth angle control unit, a three-axis inertial stabilization platform, a rotor unmanned aerial vehicle and a digital aerial photography camera, wherein the three-axis inertial stabilization platform is respectively connected with the rotor unmanned aerial vehicle and the digital aerial photography camera; the azimuth angle control unit is respectively connected with the first azimuth angle adjustment unit, the second azimuth angle adjustment unit and the third azimuth angle adjustment unit; the first azimuth angle adjustment unit is respectively connected with the first supporting bearing and the first motor; the second azimuth angle adjustment unit is respectively connected with the second supporting bearing and the second motor; and the third azimuth angle adjustment unit is connected with the third motor. According to the unmanned aerial vehicle remote sensing system disclosed by the invention, the aerial photographing precision and efficiency can be improved.

Description

technical field [0001] The invention relates to aerial photogrammetry and remote sensing technology, in particular to an unmanned aerial vehicle remote sensing system and an unmanned aerial vehicle remote sensing method. Background technique [0002] With the continuous rapid development of communication technology, aerial photogrammetry and remote sensing technology, geographic information elements obtained through aerial photogrammetry are widely used in construction, planning, transportation, electric power, water conservancy, railway, agriculture and forestry, urban management, military, Police, disaster relief and other industries. With its advantages of non-contact, high precision, fast speed and timeliness, aerial photogrammetry is playing an increasingly important role in the construction of national geospatial infrastructure and data update. Aerial photogrammetry refers to the use of aerial photography equipment installed on the aircraft to continuously photograph ...

AI Technical Summary

Problems solved by technology

However, due to the influence of various disturbances on the existing UAV remote sensing system installed with a digital aerial camera, the movement of the UAV remote sensing system is actually a complex multi-mode high-order random motion, which makes the geographic information surveying and mapping aerial photography system have multiple attitudes. changes, it is impossible to guarantee that the digital aerial photography camera always shoots vertically downwards, resulting in a decrease in the imaging quality of remote sensing aerial photography images, which greatly affects the accuracy of remote sensing and makes the accuracy of aerial photography lower; furthermore, because remote sensing technology is mainly for large-scale Geographical information data collection, the existing aerial photogrammetry and remote sensing systems mostly use high-altitude aircraft and light and small aircraft, and high-altitude aircraft and light and small aircraft have higher requirements for flight conditions, and it is difficult to achieve low-altitude high-precision geography in a small area and in a small area information data collection; moreover, the existing aerial photogrammetry and remote sensing image sensors, high-precision attitude sensors and other equipment need to be assembled on site when they are used, which makes the efficiency of geographic information data collection low. At the same time, the geographical information data collection At the same time, repeated on-site installation of equipment is not conducive to grasping favorable weather, especially in disaster emergency response, which will lead to the inability to collect geographic information data in time, and due to frequent disassembly and installation, frequent disassembly and disassembly between the attitude sensor and the image sensor is also required. The installation parameters of the attitude sensor and the image sensor will change every time they are disassembled. Therefore, after the attitude sensor and the image sensor are installed, the installation parameters need to be checked, resulting in low efficiency of geographic information data collection and reduced Aerial Photography Accuracy

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