Unmanned aerial vehicle capable of spraying variable amount of pesticide and method

Abstract

The invention discloses an unmanned aerial vehicle capable of spraying a variable amount of pesticide, which comprises a fuselage, a spraying system, a control system and an optical flow sensor, wherein the spraying system is mounted on the fuselage, the control system can control the spray amount of the spraying system according to the flight speed of the fuselage, a lens of the optical flow sensor is downward, the optical flow sensor is used for detecting the flight speed of the unmanned aerial vehicle, and the signal output end of the optical flow sensor is connected with the control system. The invention also discloses a method for spraying the variable amount of pesticide by using the unmanned aerial vehicle. The unmanned aerial vehicle capable of spraying the variable amount of pesticide and the method provided by the invention can effectively increase the uniformity of pesticide spraying to prevent excessive pesticide spraying from harming plants or prevent insufficient pesticide spraying from causing a substandard pesticide spraying effect, thus ensuring the normal growth of the plants, and the unmanned aerial vehicle and the method also reduces the usage amount of the pesticide, thus reducing cost; moreover, because full-automatic control is realized, the automation level is increased, and the difficulty of operation is decreased.

Description

technical field [0001] The invention relates to the application technology of unmanned aerial vehicles, in particular to an unmanned aerial vehicle and method for variable spraying of pesticides. Background technique [0002] Under the current high labor cost and increasing land area, farmers have higher and higher demand for mechanization of farmland operations, and plant protection drones have become a kind of operation machinery with good quality, high efficiency and low harm to human body. . Since Japan in the 1980s, drones have been used in crop dusting and other tasks, and now they have become a model for the application of plant protection drones. [0003] At present, the flying speed of the plant protection drone in the field is not uniform, while the spraying speed remains unchanged. During the take-off and turning process, a period of slow and long-lasting acceleration is required, so that during this period of time, the drone will be under the aircraft. An area ...

AI Technical Summary

Problems solved by technology

[0006] However, the flight speed detected by GPS has a large error, and the effect is not ideal in practical applications. Therefore, it is necessary to do further research on the detection of the flight speed of the UAV.

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