Rotary-wing unmanned aerial vehicle out-of-control fall protection device and protection method thereof

Abstract

The invention discloses a rotor type unmanned aerial vehicle out of control fall protection device. The key points of the technical scheme include: a top plate is installed in the ejection barrel, the top plate divides the ejection barrel into a high-pressure chamber and an ejection chamber, and a self-throwing type is installed in the ejection chamber. For the parachute, the bottom of the high-pressure chamber is provided with an air inlet; the high-pressure gas tank is respectively connected to the air inlets of the two catapults through the air guide tube, and electromagnetic valves are respectively installed at the two air inlets; the ejection opening and closing door is hinged on the The opening of the ejection barrel, the torsion spring is installed on the hinge shaft, and the fixing part for closing the ejection opening and closing door on the opening is installed on the ejection barrel; the attitude sensor is installed in the body to periodically detect the attitude change data of the body The control module receives the attitude change data, and outputs corresponding control signals to the corresponding solenoid valves and fixing parts according to the inclination angle, so as to control the self-throwing parachute in the corresponding ejection barrel to be pressed out of the ejection chamber under high-pressure gas.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to an out-of-control fall protection device for a rotor-type unmanned aerial vehicle and a protection method thereof. Background technique [0002] UAVs have been widely used in civilian and military fields, such as disaster monitoring in disaster areas, aerial photography of TV stations, power line inspection, weather detection, target detection, etc. During the flight of a small UAV, the failure of any part or link may cause the aircraft to lose control and crash, resulting in damage to the airframe itself and the onboard equipment. Fees, once a crash occurs, it will cause huge property value. [0003] UAVs can be divided into fixed-wing and rotary-wing. Among them, the fixed-wing UAV maintains a relatively large relative speed with the air during flight. The function of the parachute will be thrown and opened automatically; and this method of opening the parachute is not...

AI Technical Summary

Problems solved by technology

During the flight of a small UAV, the failure of any part or link may cause the aircraft to lose control and crash, resulting in damage to the airframe itself and the onboard equipment. Fees, once a crash occurs, it will cause huge property value

[0003] UAVs can be divided into fixed-wing and rotary-wing. Among them, the fixed-wing UAV maintains a relatively large relative speed with the air during flight. The function of the parachute will be thrown and opened automatically; and this method of opening the parachute is not suitable for the rotor UAV, because the rotor UAV is often in a hovering state during the operation, at this time, the fuselage and There is no relative speed between the air. If an out-of-control crash occurs at this time, the fixed-wing parachute is not suitable and cannot provide protection for the falling rotary-wing drone. Therefore, an effective out-of-control fall protection device is urgently needed

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