The present invention relates to unmanned aerial vehicles, and specifically discloses a method and a system for controlling an aircraft to automatically return and an unmanned aerial vehicle. The method includes: when the magnetometer is invalid or encounters strong magnetic interference, assuming that a track angle is equivalent to the head direction, and accelerating the aircraft in a head direction; determining whether a speed obtained after the aircraft is accelerated reaches a preset value; if the speed reaches the preset value, obtaining the track angle of the aircraft according to the speed; obtaining a current location and a home point of the aircraft by using a positioning system that can provide global or local coordinates, to obtain a heading angle of the aircraft; determining whether a difference between the heading angle of the aircraft and the track angle of the aircraft is less than a fixed value; and if the difference is less than the fixed value, controlling the aircraft to directly return. By means of the technology adopted in the present invention, the automatic returning of the aircraft can be implemented without increasing hardware costs.
AUTOMATIC RETURNING METHOD AND SYSTEM, AND UNMANNED AERIAL VEHICLE
2018-12-06
Patent
Electronic Resource
English
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