Unmanned aerial vehicle and special spraying system and using method thereof

Abstract

The invention relates to an unmanned aerial vehicle and a special spraying system and a using method thereof. The spraying system comprises a tripping-type main hanger assembly and a lifting tool assembly, wherein the tripping-type main hanger assembly comprises a tripping female block, a power-on / off holding electromagnetic assembly, a pre-pressure ejection assembly and a liquid cavity are arranged on the tripping female block, the power-on / off maintaining electromagnetic assembly has magnetism during power-on / off and loses magnetism after power-off / on; the pre-pressure ejection assembly canstore an elastic pre-pressure; the liquid cavity is provided with a quick-plug connection port; the lifting tool assembly comprises a magnetic sucker, a pressing surface, a quick-plug connector and aspray rod, the quick-plug connector is adapted to be connected with the quick-plug connection port, the pressing surface is matched with the pre-pressure ejection assembly, and the pressing surface applies the elastic pre-pressure to the pre-pressure ejection assembly; and a nozzle is arranged on the spray rod. According to the unmanned aerial vehicle and the special spraying system, the target precision of the unmanned aerial vehicle spraying machine can be effectively improved, the fog drop drift is reduced, and meanwhile, the safety of the unmanned aerial vehicle is guaranteed.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial vehicle and its special spraying system and usage method. Background technique [0002] Due to the rising cost of rural labor in my country and the fragmented distribution of most of the arable land, plant protection drones with certain maneuverability and strong regional adaptability have begun to be widely used in recent years. However, during the operation of drones, Due to the influence of its own rotor wind field and natural wind field, the droplet drift is more serious, especially when herbicides are used, the incidents of large-scale phytotoxicity in adjacent different crop plots occur from time to time, which limits the comprehensive use of plant protection drones. Promotional use. Statistics show that aerial spraying will cause 50%-75% of the liquid droplets to drift and fail to reach the target area, while ground spraying only has 10%-...

AI Technical Summary

Problems solved by technology

[0002] Due to the rising cost of rural labor in my country and the fragmented distribution of most of the arable land, plant protection drones with certain maneuverability and strong regional adaptability have begun to be widely used in recent years. However, during the operation of drones, Due to the influence of its own rotor wind field and natural wind field, the droplet drift is more serious, especially when herbicides are used, the incidents of large-scale phytotoxicity in adjacent different crop plots occur from time to time, which limits the comprehensive use of plant protection drones. promotional use

Statistics show that aerial spraying will cause 50%-75% of the liquid droplets to drift and fail to reach the target area, while ground spraying only has 10%-35%

[0003] The flight height of the plant protection UAV is an important factor affecting the degree of droplet drift by its own rotor wind field and natural wind field. When it is high, both the natural wind field and the turbulent wind field formed by the rotor will obviously cause the droplets to drift, and they cannot effectively deposit and adhere to the target area; The turbulent wind field will cause the crop canopy to swing violently, the fog droplets will not be able to attach effectively and will drift, and the low flying altitude will cause the UAV to encounter obstacles and crash, causing unnecessary losses

[0004] Therefore, it is necessary to propose a new solution to one or more of the problems caused by the drone's flight height and improper spraying settings, such as the loss of the whole machine or the drift of droplets.

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