Nozzle position adjusting device and method based on plant protection unmanned aerial vehicle flight direction

Abstract

The invention discloses a nozzle position adjusting device and method based on a plant protection unmanned aerial vehicle flight direction; the nozzle position adjusting device comprises a pesticide box, a spraying mechanism, an executing device and a control system, wherein the executing device is used for driving the spraying mechanism to move so as to ensure that the spraying mechanism is located behind the plant protection unmanned aerial vehicle all the time when the plant protection unmanned aerial vehicle works and flies, and the spraying mechanism comprises a spraying rod and a nozzle;the executing device comprises a supporting rod, a first rotating mechanism and a second rotating mechanism; the control system comprises a flight state acquisition module and a calculation processing module. The nozzle position adjusting device is simple in structure and simple, convenient and safe to operate, and can reduce the influence of a turbulent wind field below rotor wings on the drifting of fog drops, so that the drifting of the fog drops is reduced, the efficiency and the prevention and control effect of the spraying operation of the plant protection unmanned aerial vehicle are ensured, and the application prospect of the nozzle position adjusting device is relatively large.

Description

technical field [0001] The invention relates to the field of precision agricultural equipment, in particular to a nozzle position adjustment device and method based on the flight direction of a plant protection drone. Background technique [0002] In recent years, plant protection UAV spraying has been widely used in agriculture due to its advantages of low operating cost, strong assault capability, safe operation, and not being restricted by crop growth. As one of the important symbols of agricultural aviation, plant protection The aerial spraying operation method of UAV has been rapidly applied and developed. [0003] Among them, the remarkable sign that the plant protection drone is different from other agricultural machinery is the rotor of the plant protection drone. The existence of the rotor makes the plant protection drone have a special parameter when it works in the air-rotor wind field. Studies have shown that the rotor wind field in the boundary area is in a lam...

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Problems solved by technology

Therefore, in order to reduce the influence of the turbulent wind field in the middle area on the distribution of droplet deposition, after the plant protection drone completes the forward flight operation, the fog droplets are sprayed from the rear of the drone's flying direction in the following two ways: One is to turn the direction of the nose of the aircraft and control the UAV to fly backward. This flying method needs to change the control habit of the operator, which requires a higher level of control of the operator and is prone to danger; the other is to fly along the drone. Two rows of nozzles are installed in the front and rear directions of the man-machine fuselage, and the nozzles in the rear of the flight direction are turned on during spraying operations. This method not only wastes resources, but also leads to more complex systems and waste of liquid medicine, etc.

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