A precisely controlled autonomous flying pesticide spraying drone

Abstract

The invention provides a precisely controlled autonomous flying pesticide spraying unmanned aerial vehicle and its plant protection method. The unmanned aerial vehicle includes a body, four or more rotors, landing gear, a mounting plate, an external medicine box, a control device, and a power supply. . The UAV control device collects environmental data in real time, and performs comprehensive dynamic adjustment based on the environmental data, including adjusting the expansion and contraction of the expansion joint according to the offset angle, and adding the wind speed experience value to the expansion and contraction to improve the spraying accuracy; and adjusting the PWM according to the wind speed. , to increase the amount of spraying, the UAV automatically performs path planning, and automatically returns when the wind speed is too high. The invention can effectively improve the spraying precision and enhance the safety of the drone.

Description

technical field [0001] The invention relates to the field of modern agricultural technology, in particular to a precisely controlled self-flying pesticide spraying unmanned aerial vehicle. Background technique [0002] The currently used pesticide spraying equipment is mainly manual and small mechanical (electric) sprayers, of which manual pesticide spraying machines account for more than 90% of the share, and plant protection operations require a lot of labor and labor intensity. happens sometimes. At present, as modern agriculture pursues the goal of production, the amount of domestic pesticides and chemical fertilizers is increasing, the cost of manual work is high, and the waste of traditional medicines is serious, the effective utilization of resources is low, and it is difficult to guarantee crop production and quality under limited resources. , especially for operations such as large-scale multiple application of pesticides. At the same time, the wasted drugs will a...

AI Technical Summary

Problems solved by technology

However, multi-axis aircraft (multi-rotor aircraft) has weaker wind resistance; the down-rotating wind field is also weaker; if the UAV rotor speed is increased to increase the wind force, the wind field will be scattered and the coverage of the wind field will be small, making the spraying of pesticides uneven , if the spraying area is increased and the spray boom is lengthened, the flight will be unstable, the operation will be more difficult, and the risk of crashing will be increased

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