Autonomous flight pesticide spraying unmanned aerial vehicle controlled precisely

Abstract

The invention provides an autonomous flight pesticide spraying unmanned aerial vehicle controlled precisely and a plant protection method using the autonomous flight pesticide spraying unmanned aerialvehicle controlled precisely. The autonomous flight pesticide spraying unmanned aerial vehicle comprises a fuselage, four or more rotor wings, an undercarriage, a mounting plate, an externally-hung pesticide box, a control device and a power source. The control device of the unmanned aerial vehicle collects environment data in real time, and comprehensive dynamic adjustment is conducted accordingto the environment data, specifically, the expansion amount of expansion joints is adjusted according to the deviation angle, a wind speed empirical value is added on the basis of the expansion amount, and thus spraying precision is improved; and PWM is adjusted according to the wind speed, the spraying amount is increased, and the unmanned aerial vehicle plans a path automatically and makes a return flight automatically under the situation that the wind speed is too large. According to the autonomous flight pesticide spraying unmanned aerial vehicle controlled precisely, the spraying precision can be effectively improved, and the using safety of the unmanned aerial vehicle is improved.

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 proportion. 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 also cause serious water and soil resource pollution, ecological system ...

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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