Rough/smooth negative surface unmanned aerial vehicle landing mechanism based on spinule array and bionic dry adhesion material

Abstract

The invention discloses a rough / smooth negative surface unmanned aerial vehicle landing mechanism based on a spinule array and a bionic dry adhesion material. The rough / smooth negative surface unmanned aerial vehicle landing mechanism comprises a landing support, a steering engine, a steering engine arm, a lifting mechanism, a rough landing mechanism and four smooth adhesion and desorption mechanisms. According to the landing mechanism, the unmanned rotorcraft can land on a smooth negative surface through adhesive force generated by the action of the bionic dry adhesive material and the smooth negative surface; the rotor unmanned aerial vehicle can land on the rough negative surface through grabbing force generated when the spinule array pierces into the rough negative surface, and the rotor unmanned aerial vehicle can be switched from a smooth negative surface landing state to a rough negative surface landing state through the lifting mechanism capable of enabling the spinule array to move up and down. Therefore, the unmanned aerial vehicle can land on a rough and smooth negative surface, excessive energy consumption during hovering is avoided, energy consumption during task execution of the unmanned aerial vehicle is reduced, the unmanned aerial vehicle has larger activity space and higher adaptability of landing capacity, noise is reduced, and concealment is improved.

Description

technical field [0001] The invention provides a negative surface unmanned aerial vehicle landing mechanism and a landing method based on a micro-thorn array and a bionic dry adhesive material, belonging to the technical field of unmanned aerial vehicles. Background technique [0002] At present, UAVs are widely used in the fields of reconnaissance, inspection, monitoring, photography, etc. Multi-rotor UAVs often need to carry equipment and hover in one place when performing tasks, and need to maintain high energy consumption when hovering. Due to the limitation of carrying power, the activity space of UAVs currently sold in the market is limited to a small range, and the battery life is also limited to about 20 minutes. At the same time, the UAV needs a relatively flat and empty horizontal surface when landing, but when performing tasks in the city, due to the limited space, it is difficult to find a suitable landing site in a short time. [0003] The existing UAV negative ...

AI Technical Summary

Problems solved by technology

Chinese patent ZL201810207532.0 discloses a claw-type wall-climbing robot that can crawl on vertical walls and negative surfaces; Chinese patent ZL202011488071.2 discloses an aircraft based on a microthorn structure that can land on rough negative surfaces This mechanism can only achieve landing on rough negative surfaces, not suitable for smooth negative surfaces, and has great limitations

[0007] However, the switching and non-interference between the two landing modes, due to the differences in the landing methods of the microspine array and the adhesive material, make them only suitable for landing on rough negative surfaces and smooth negative surfaces respectively. The application environment of drones

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