Protection device and protection method for tumbling out of control of rotor type unmanned aerial vehicle
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A technology of fall protection and drones, applied in the field of drones, can solve problems such as damage to the body itself and airborne equipment, huge property value, and inability to protect rotor-type drones, so as to reduce research and experiment costs and improve Stability and safety, improving the effect of protecting drones
Active Publication Date: 2017-08-18
温岭鸿方智能科技有限公司
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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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Embodiment 1
[0037] Embodiment one, combining figure 1 and figure 2 Shown:
[0038] A rotor type unmanned aerial vehicle fall protection device, comprising a body 1 and a rotor 19 arranged on the body 1, the body 1 has a front 101 and a back 102, the protection device includes a catapult 2, a high-pressure gas tank 8, an ejection opening and closing Door 11 , attitude sensor 14 and control module 15 .
[0039] There are two ejection tubes 2, and the ejection tube 2 has an opening, a side wall, an inner cavity, and a bottom of the tube. There is a top plate 3, the top plate 3 can be made of rubber material, the top plate 3 can slide axially along the catapult 2, because the top plate 3 has a certain elasticity, the top plate 3 expands tightly in the catapult 2, so that the top plate 3 and the inner wall of the catapult 2 There is a seamless sealing connection between them; wherein, the top plate 3 separates the ejection cylinder 2 into a high-pressure chamber 4 and an ejection chamber 5...
Embodiment 2
[0059] Embodiment two, such as Figure 5 Shown:
[0060] A method for protecting a rotary-wing unmanned aerial vehicle from falling out of control, comprising the steps of:
[0061] S100, detecting the attitude change data of the body 1 in real time, the attitude change data includes the inclination angle of the body 1 and the falling speed of the body 1, wherein the inclination angle of the body 1 placed horizontally with the front 101 facing upward is set to 0°;
[0062] S200, analyze the attitude change data, and judge whether the inclination angle of the body 1 and the falling speed of the body 1 are greater than a threshold, and if so, go to S300;
[0063] S300, judging whether the maintenance time of the inclination angle of the body 1 and the falling speed of the body 1 exceeds a preset time, and if so, proceed to S400;
[0064] S400, setting the threshold value of the inclination angle of the front 101 of the body 1 to ±90°, and judging the angle of the inclination a...
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Abstract
The invention discloses a protection device for tumbling out of control of a rotor type unmanned aerial vehicle (UAV), and the technical scheme thereof is characterized in comprising ejection cylinders, a high-pressure gas cylinder, ejection opening and closing doors, a posture sensor and a control module, wherein top plates are mounted inside the ejection cylinders; each top plate divides the corresponding ejection cylinder into a high-pressure chamber and an ejection chamber; each ejection chamber is provided with a self-throwing parachute and the bottom of each high-pressure chamber is provided with an air inlet; the high-pressure gas cylinder is respectively connected with the air inlets of the two ejection cylinders through air duct pipes, and electromagnetic valves are respectively mounted near the two air inlets; the ejection opening and closing doors are hinged to the opening of the ejection cylinders; hinge shafts are provided with torsion springs; fixed parts for closing the ejection opening and closing doors at the opening of the ejection cylinders are mounted on the ejection cylinders; the posture sensor is arranged in a UAV body to periodically detect posture change data of the UAV body; and the control module receives the posture change data and outputs a corresponding control signal to the corresponding solenoid valve and the corresponding fixed part according to an angle of inclination to control the self-throwing parachute in the corresponding ejector cylinder to be forced out of the corresponding ejection chamber under the 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...
Claims
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Application Information
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