Flight control method of small unmanned helicopter

Abstract

The invention discloses a flight control method of a small unmanned helicopter. According to the method, a flight execution unit, a state sensor unit, a parachute unit, a flight control unit, a ground control terminal and a remote controller unit are adopted, so that the effects of obstacle-avoidance flight, water-surface-avoidance landing, self-adaptive flight attitude control, power monitoring, automatic parachute opening in case of engine stop, flight control through a flight control panel, flight path generation through a signal panel and the like can be achieved. The flight control method of the small unmanned helicopter has the advantages that the self-adaptive obstacle-avoidance flight capacity of the small unmanned helicopter can be improved; the small unmanned helicopter can operate in a beyond visual range according to a preset instruction, can slowly land by using a parachute in an emergency of the engine stop in the air, is protected from being damaged, and can automatically avoid a water surface during landing.

Description

technical field [0001] The invention belongs to the control technology of aircraft, in particular to a flight control method of a small unmanned helicopter. Background technique [0002] With the development of adaptive control technology, the adaptive flight of unmanned helicopters has been extensively studied all over the world. Unmanned helicopters have many advantages that unmanned fixed-wing aircraft do not have, and have unique flight performance and use value. In terms of military affairs, unmanned helicopters can not only perform various non-lethal tasks, but also perform various hard and soft lethal tasks, including reconnaissance, surveillance, target interception, decoy, attack, communication relay, etc.; Manned helicopters have broad application prospects in aerial photography, atmospheric monitoring, traffic monitoring, resource exploration, power inspection, forest fire prevention, and agriculture. [0003] The unmanned helicopter flight control system is a ty...

AI Technical Summary

Problems solved by technology

[0004] At present, large-scale unmanned helicopters use fiber optic gyroscopes to form strapdown inertial navigation systems, and microwave radars to detect obstacles have mature solutions, but the implementation costs are high and the weight is heavy. Not very promising on 4-5 hours)

At present, small unmanned helicopters have been more and more widely used, and various autonomous flight control systems have appeared, but the flight control system that realizes adaptive obstacle avoidance flight and autonomous water avoidance landing has not yet appeared.

Images