A multi-rotor UAV with foldable adaptive landing gear

Abstract

The invention discloses a foldable adaptive landing gear for a multi-rotor UAV, which includes a lower position adjustment platform, an upper position adjustment platform, a pressure sensor, a depth camera and an IMU, wherein the lower position adjustment platform includes a lower seat that is sequentially connected by rotation , the bottom thigh bar, the bottom calf bar, the bottom thigh bar, and the bottom calf bar can rotate under the drive of the motor respectively; The sensor is installed under the lower leg bar to detect the contact force between the landing gear and the ground; the depth camera is installed under the lower seat for terrain survey; the IMU is installed above the upper seat to detect the attitude of the landing gear after landing. The foldable adaptive landing gear of the present invention has high control precision and can be folded autonomously, thereby satisfying the adaptive performance of the landing gear in various complex scenarios.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a foldable and adaptive landing gear of a multi-rotor unmanned aerial vehicle. Background technique [0002] Due to the characteristics of vertical take-off and landing, fixed-point hovering in the air, low-speed flight, low-altitude ultra-low-altitude flight, in-situ steering, and flying in any direction, multi-rotor UAVs have limited take-off and landing sites, narrow flight space, and require low-altitude and low-speed operation. As an ideal aircraft, it has broad application prospects in mission situations. At present, the landing gear of the multi-rotor UAV mostly adopts the fixed tripod structure. The landing gear of the fixed tripod structure has the advantages of simple structure and no need for external control devices. Under the working conditions, the landing gear with fixed tripod structure is often unable to adapt, thus limiting its use range. SUMMARY OF TH...

AI Technical Summary

Problems solved by technology

[0003] In view of the fact that the landing gear of the existing fixed tripod structure cannot adapt to a variety of complex terrain conditions, the present invention provides a foldable adaptive landing gear for multi-rotor UAVs to solve the ubiquitous terrain of the existing landing gear structure. The problem of poor adaptability improves the landing adaptability of multi-rotor UAVs on various complex terrains such as steps, slopes, and sand and gravel

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