The invention relates to an unmanned aerial vehicle autonomous landing system and landing method based on GPS and vision. The method comprises the steps: enabling an unmanned aerial vehicle to receivea one-key return instruction in a normal flight process, enabling the unmanned aerial vehicle to maintain a normal flight height, starting to fly to a first landing position right above a landing point, and employing a GPS positioning system in the process; after the unmanned aerial vehicle arrives at the first-section landing position, the unmanned aerial vehicle starts to descend to a second-section landing position 5 m away from the position over the target at the vertical speed of 5 m/s, and a GPS is adopted in the process; after the unmanned aerial vehicle reaches the second-section landing position, the unmanned aerial vehicle starts to descend to the ground at the vertical speed of 1 m/s, and a visual positioning system is adopted in the process; and after the unmanned aerial vehicle reaches the ground, the unmanned aerial vehicle blades stop rotating. According to the unmanned aerial vehicle autonomous landing system, a GPS and visual positioning method is adopted, and the landing precision of the unmanned aerial vehicle is improved to the maximum extent.
本发明涉及一种基于GPS与视觉的无人机自主着陆系统和着陆方法,其方法包括:无人机在正常飞行过程中,收到一键返航指令,无人机保持正常飞行高度,开始飞往着陆点正上方的第一段降落位置,此过程采用GPS定位系统;无人机到达第一段降落位置后,开始以5m/s的垂直速度下降到距离目标正上方高度5米的第二段降落位置,此过程采用GPS定位系统;无人机到达第二段降落位置后,开始以1m/s的垂直速度下降到地面,此过程采用视觉定位系统;无人机到达地面后,无人机桨叶停止转动。所述无人机自主着陆系统采用GPS和视觉定位的方法,最大限度的提高了无人机的降落精度。
Unmanned aerial vehicle autonomous landing system and landing method based on GPS and vision
一种基于GPS与视觉的无人机自主着陆系统和着陆方法
2020-04-14
Patent
Electronic Resource
Chinese
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