Experiment Of Fruit Tree Plant Protection UAV Based On Branch Targeting Technology

In recent years,with the more and more common use of plant protection UAV,the application technology of plant protection UAV has also developed rapidly in China.At present,the application of this technology in field crops(wheat,corn,rice,etc.)has become mature,but the Research Report on plant protection in apple orchard is relatively less.This paper mainly studies the pesticide application of fruit trees by UAV under different operation parameters,and studies the influence of UAV operation parameters on droplet deposition distribution.In this paper,the working height and flight speed of the plant protection UAV are used as research variables to measure the four main indicators of droplet size,droplet deposition density,droplet coverage and droplet deposition,and the data are processed and analyzed.In order to provide reference for orchard aviation plant protection technology operation standard.The main contents and results are as follows(1)When the flight altitude of the plant protection UAV is the same,the influence of the flight speed of the fruit tree plant protection UAV on the spraying effect is analyzed by analyzing the four measured indexes.The results show that: when the working height is 1 m and 2 m from the top of the tree,different flight speeds have little effect on the droplet size,but have a greater impact on the droplet coverage.When the working speed is 1 m / s,the droplet deposition density and amount are greater than that when the working speed is 2m / s,the control effect of plant protection UAV is better.(2)The results showed that when the working height was 1m-2m from the top of the tree,the droplet size was less affected,and the droplet coverage was more affected.When the working height was 1m,the droplet deposition density and amount were greater than that when the working height was 2m,the control effect was good.(3)In this study,the fruit tree plant protection UAV ty5a-t is selected.According to the results of this study,it is recommended that the spraying height should be 1m-2m from the top of the tree and the flight speed should be 1 m / s before bagging,so that the fruit tree plant protection UAV has the best spraying effect.