Research and Design of Small-Sized Agricultural Quadcopter

China is a large agricultural country. The occurrence of pests and diseases in agriculture and forestry has caused huge losses to the crop yield in the country. Currently, most of the prevention and control of farmland pests and diseases in China rely on manpower, which means heavy labor tasks and high risks. Due to some restrictions of farmland crops themselves, it is difficult for some large - scale machinery to spray pesticides. However, the application of quadcopter can overcome these shortcomings well. The quadcopter with a single - chip microcomputer as the main control can automatically spray pesticides on crops, making pesticide spraying easier and greatly improving the efficiency.