An autonomous positioning tethered platform for unmanned aerial vehicles

Abstract

The invention discloses an autonomous positioning tethered platform of an unmanned aerial vehicle, which comprises a winding part, a wire arrangement part and a positioning part. The winding part comprises a winding motor, a magnetic particle brake and a drum with a hollow structure; the wire arrangement part comprises a wire arrangement motor, a reciprocating screw rod and a screw rod moving part. The positioning part comprises a rocker potentiometer and a lifting platform. The positioning accuracy of the UAV positioning tethered platform designed in this scheme is high and not limited by theenvironment, and the positioning accuracy is achieved by using the rocker potentiometer as a relative positioning device. Tension control based on magnetic particle brake has little error for tensioncontrol, and can improve tension control precision effectively. The automatic winding device based on reciprocating screw rod solves the problem that the control wires of the tethered unmanned aerialvehicle are in disorder. This design can make UAV use higher power motor, more robust structural system, can carry larger and heavier payload, which is the important foundation to ensure the stability and safety of the tethered UAV.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an autonomously positioned unmanned aerial vehicle tethered platform. Background technique [0002] In recent years, multi-rotor UAVs have been widely welcomed by users due to their stable flight and simple operation. However, existing lightweight multi-rotor UAVs generally suffer from serious drawbacks. The main problem lies in the power system, and its energy source is generally the lithium battery carried by itself. Relying on this limited energy to fly the UAV and power electronic devices such as the stabilization platform, camera, and wireless data transmission poses severe challenges to the overall design and also poses serious performance limitations. Most light multi-rotor UAVs can only fly for one or two hours, and cannot carry high-power payloads; the lack of energy also severely limits the wireless transmission power of UAVs, resulting in serious ant...

AI Technical Summary

Problems solved by technology

Relying on this limited energy to fly the UAV and power electronic equipment such as the stabilization platform, camera, and wireless data transmission poses a severe challenge to the overall design and also poses serious performance limitations.

Most light multi-rotor UAVs can only fly for one or two hours, and cannot carry high-power payloads; the lack of energy also severely limits the wireless transmission power of UAVs, resulting in serious anti-interference performance and communication capabilities. insufficient

In many cases, the flight accidents of civilian light multi-rotor UAVs are caused by the interference of the control lines

Low transmit power also limits image quality for real-time transmission

If the transmission power is increased at the expense of air time, it will cause interference to other wireless devices

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