Unmanned air vehicle with multiple rotary wings in plane-symmetry layout

Abstract

The invention discloses an unmanned air vehicle with multiple rotary wings in a plane-symmetry layout, comprising a body, rotary wing assemblies and undercarriage, wherein, the number of the rotary wing assemblies is an even number more than or equal to 4; each rotary wing assembly comprises a rotary wing support arm, a rotary wing motor and a rotary wing, the rotary wing motor is fixed at the outer end of the rotary wing support arm; the rotary wing is arranged on a rotation shaft of the rotary wing motor and is driven by the rotary wing motor; the longitudinal symmetrical planes of the all rotary wing assemblies relative to the body are distributed in a bilateral symmetry mode, and are fixedly connected with the two sides of the body through the inner ends of the rotary wing support arms; an equipment compartment and a power source compartment separated front and back are arranged in the body, the equipment compartment comprises a navigation component, a flight control component and a communication component; the power source compartment comprises a battery for providing power to the electronic equipment of the whole air vehicle; the undercarriage is fixedly connected at the lower part of the body; and the flight control component is provided with a flight control computer with the functions of fault diagnosis of the multiple rotary wings and fault-tolerant flight control. The unmanned air vehicle has the advantages of novel appearance layout, concise internal structure, reliable system control and better engineering application value, and is easy for engineering implementation.

Description

technical field [0001] The invention relates to a multi-rotor unmanned aerial vehicle with a symmetrical layout, which belongs to the technical field of unmanned aerial vehicle design and control, and can be widely used in aerial photography, power inspection, environmental monitoring, forest fire prevention, disaster inspection, terrorism prevention and lifesaving, Military reconnaissance, battlefield assessment and other fields. Background technique [0002] Micro-aircraft with vertical take-off and landing, stable hovering and autonomous cruising capabilities have broad application prospects in civil and military fields. Common miniature unmanned helicopters (including model helicopters) can take off and land vertically and hover in the air, but due to their inherent lack of stability, it is difficult to control them manually or automatically. The rotors of this type of helicopter usually have considerable scale and inertia. When rotating at high speed, they are not only...

AI Technical Summary

Problems solved by technology

Although this method can concentrate the mass of the whole machine in the central part, because the battery works under a high current state, its thermal effect and magnetic field effect can easily cause interference to electronic equipment, which will lead to such as increased error of sensitive components, failure of flight control computer, etc. failure, thereby reducing the reliability of the aircraft control system;

[0010] 3) In terms of control methods, there is no multi-rotor fault diagnosis and fault-tolerant flight control technology when single or multiple rotors fail (partially or completely), so there is still a lot of room for improvement in the reliability of aircraft control

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