A landing method and landing device for a vertical take-off and landing fixed-wing unmanned aerial vehicle

Abstract

The invention relates to the technical field of unmanned aerial vehicles, a method for landing a vertical take-off and landing fixed-wing unmanned aerial vehicle, comprising the following technical steps: the aircraft flies horizontally, and then turns into a vertical flight state; in the vertical flight state, the belly of the aircraft faces the wind, and simultaneously vertically In flight mode, control the aircraft to accurately reach above the landing point; control the aircraft to switch from vertical flight to horizontal flight, with the nose facing the wind, and the fuselage remains horizontal; turn off the engine for free landing; after landing to the set height, adjust the attitude of the fuselage to a vertical state; The aircraft descends slowly. The invention solves the problem of large energy loss during the vertical landing of the aircraft from a high altitude, greatly reduces the energy loss, and indirectly improves the endurance of the aircraft. When the fuselage loses stability and falls, the position of the propeller is suspended.

Description

technical field [0001] The technology relates to the technical field of unmanned aerial vehicles, in particular to a landing method and device for a vertical take-off and landing fixed-wing unmanned aerial vehicle. Background technique [0002] The vertical take-off and landing fixed-wing UAV has the ability of vertical take-off and landing and high-speed cruising at the same time, which overcomes the disadvantages of traditional fixed-wing UAVs that need to take off and land on a long runway. This advantage ensures that it can operate in mountains, hills, jungles, etc. The smooth operation of complex terrain and densely built areas has greatly expanded the scope of application of fixed-wing UAVs in land and resource surveying and mapping, police fire reconnaissance, emergency rescue and other fields. With the wide application of vertical take-off and landing fixed-wing UAV technology, the problem of high kinetic energy consumption during the vertical landing process has als...

AI Technical Summary

Problems solved by technology

[0003] After the high-altitude operation is completed, the fixed-wing UAVs in the prior art usually use hovering flight to lower the altitude near the landing point, and the hovering and lowering method is often impossible to implement due to mountainous or urban airspace conditions.

The vertical take-off and landing fixed-wing UAV in the prior art adopts the whole vertical landing process during the landing process. This vertical landing method requires the engine to run at high speed throughout the whole process, and consumes a lot of energy.

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