Unmanned aerial vehicle with safety device

Abstract

The invention discloses an unmanned aerial vehicle with a safety device. The unmanned aerial vehicle includes an unmanned aerial vehicle body and an airbag device; the airbag device is arranged below the unmanned aerial vehicle; and the unmanned aerial vehicle is characterized in that the unmanned aerial vehicle further includes a flow stabilizing device provided with a plurality of folding flow stabilizing plates, and the flow stabilizing device is fixed to the upper part of the unmanned aerial vehicle body. According to the unmanned aerial vehicle, the flow stabilizing device can be arranged on the unmanned aerial vehicle body to reduce ground impact force on the unmanned aerial vehicle after falling, and flight safety and anti-crash capability of the unmanned aerial vehicle are improved.

Description

technical field [0001] The invention belongs to the technical field of drones, in particular to a drone with a safety device. Background technique [0002] Today, drones have been used in many aspects of our lives. As the scope of UAV applications becomes wider and wider, some problems will inevitably be exposed. One of the big problems is the accidental crash of UAVs. If the control leads to a fall, it will bring great safety hazards to the UAV itself and the ground personnel. Nowadays, improving the flight safety of UAVs is a research hotspot. [0003] There are three main ways to solve the crash of UAV in the prior art. One is to adopt a single airbag method, such as the published utility model patent CN 206367613 U multi-axis UAV airbag device and the published invention patent CN106516135 A without The control method and system of the airbag of the human flight equipment adopts a single airbag device to improve the flight safety of the UAV. Simply relying on the airba...

AI Technical Summary

Problems solved by technology

As the scope of UAV applications becomes wider and wider, some problems will inevitably be exposed. One of the big problems is the accidental crash of UAVs. If the control leads to a fall, it will bring great safety hazards to the UAV itself and the ground personnel. Nowadays, improving the flight safety of UAVs is a research hotspot

[0003] There are three main ways to solve the crash of UAV in the prior art. One is to adopt a single airbag method, such as the published utility model patent CN 206367613 U multi-axis UAV airbag device and the published invention patent CN106516135 A without The control method and system of the airbag of the human flight equipment adopts a single airbag device to improve the flight safety of the UAV. Simply relying on the airbag cannot completely prevent the UAV from crashing, because the UAV is in a stall. During the process, due to the effect of air resistance, it will flip over. Once the drone flips in the air, it is difficult to ensure that the airbag will work, and the probability of crashing the drone will increase; the other is to use a single parachute , such as the published utility model patent CN 207843333 U UAV safety umbrella, the parachute is arranged on the legs of the UAV to prevent the UAV from crashing, this way will cause the rotor of the UAV to touch the ground, thus causing The rotor is damaged; there is another way to combine airbags and parachutes, such as the literature Zhang Dingchen, etc. Research and development of parachutes and airbags for fixed-wing UAVs (J). Science and Technology Vision, 2017 (07): 38-39 The man-machine uses the combination of airbags and parachutes to improve the flight safety of drones. This method is limited by the flying height of drones, and for drones with small mass and volume, it will also cause parachutes to Can't open in the air

[0004] The reliability and maintainability of the UAV airbag device under the prior art are all relatively low, and the prior art all is that the UAV airbag is fixedly installed inside the fuselage, such as the published utility model patent CN 206367613 U Axis drone airbag device, the airbag is fixedly installed in the drone body, this arrangement will cause the lower part of the fuselage of the drone to hang the airborne equipment, which reduces the practicability of the drone, and due to the safety The airbag device is arranged inside the fuselage, and the airbag device cannot be quickly repaired and replaced, thereby greatly reducing the maintainability of the airbag device; the UAVs with airbags in the prior art are only equipped with An airbag, once the airbag device fails, the drone will crash, it is difficult to guarantee the high reliability of the drone airbag

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