Tension adjustment device and winch device for mooring unmanned aerial vehicle and tension adjustment method

Abstract

The invention relates to a tension adjustment device and winch device for mooring an unmanned aerial vehicle and a tension adjustment method. The tension adjustment device comprises a tension induction arm, a detection element, a control element and an elastic part; the detection element is connected with the tension induction arm and outputs detection signals according to rotation of the tensioninduction arm; the control element receives the detection signals and outputs control signals according to the detection signals; the tension induction arm is connected to a first end of the elastic part; the tension adjustment device for the mooring unmanned aerial vehicle further comprises a steering engine; the steering engine comprises a swing arm, and the swing arm is connected with a secondend of the elastic part; the steering engine receives the control signals and drives the swing arm to swing according to the control signals; when the tension induction arm rotates in the direction ofstretching the elastic part, and the swing arm sings in the direction of shrinking the elastic part; and when the tension induction arm rotates in the direction of shrinking the elastic part, and theswing arm swings in the direction of stretching the elastic part. According to the tension adjustment device, the load of the unmanned aerial vehicle when rising is reduced, and taking up of the unmanned aerial vehicle is facilitated when falling.

Description

technical field [0001] The invention relates to the technical field of tethered drones, in particular to a tension adjustment device, a winch device and a tension adjustment method for tethered drones. Background technique [0002] A tethered drone is a type of drone. The tethered drone is generally connected to the winch device on the ground through a tethered cable, and the ground workstation supplies the power required for the tethered drone to fly. The tethered UAV has the stable performance of fixed-point and fixed-altitude flight possessed by other UAVs, and also has the function of long-haul flight. Theoretically, as long as the ground workstation provides enough power, the tethered UAV can continue to fly at a fixed height and fixed point for a long time. Such UAV aircraft can be widely used in communication emergency relay, live broadcast and aerial monitoring. . [0003] At present, the winch device for tethering the UAV often uses a spring to control the reboun...

AI Technical Summary

Problems solved by technology

When the tethered UAV descends, because the rebound tension of the spring is getting smaller and smaller, the proper rebound tension cannot be achieved, and the tethering line may not be retracted.

If the thickness of the spring is increased, although the rebound tension is sufficient, the tensile load is too large. If the thickness of the spring is reduced, the tensile load becomes smaller, but the rebound tension is not enough. This contradiction cannot be solved by adjusting the thickness of the spring.

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