Landing method and landing device of vertical takeoff and landing fixed wing unmanned plane

Abstract

The invention relates to the technical field of unmanned planes, and concretely relates to a landing method of a vertical takeoff and landing fixed wing unmanned plane. The method comprises the following technical steps: the horizontal flight of an aircraft becomes a vertical flight state; a belly faces wind in the vertical flight state, and the aircraft is controlled to accurately reach a landing point in the vertical flight mode; the aircraft is controlled to become horizontal flight from vertical flight, a head faces the wind, and a fuselage keeps horizontal; an engine is turned off to realize free landing; the attitude of the fuselage is adjusted to a vertical state after the aircraft falls to a preset height; and the aircraft slows lands. The method solves the problem of large energy loss of the aircraft in the vertical landing process from a high altitude, greatly reduces the energy loss, indirectly improves the cruising ability of the aircraft, and makes the positions of propellers overhead during the instability and falling of the fuselage.

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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