植保无人机作业参数对茶树冠层雾滴沉积分布的影响

吴梦涛; 李兆群; 杨宇宙; 孟祥飞; 罗宗秀; 边磊; 修春丽; 付楠霞; 陈宗懋; 王国昌; 蔡晓明

doi:10.13305/j.cnki.jts.20250520.001

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茶叶科学 ›› 2025, Vol. 45 ›› Issue (3) : 535-544. DOI: 10.13305/j.cnki.jts.20250520.001

研究报告

植保无人机作业参数对茶树冠层雾滴沉积分布的影响

吴梦涛^1,2, 李兆群², 杨宇宙³, 孟祥飞¹, 罗宗秀², 边磊², 修春丽², 付楠霞², 陈宗懋², 王国昌^1,*, 蔡晓明^2,*

作者信息 +

The Effect of Operational Parameters of Plant Protection Unmanned Aerial Vehicle on the Droplet Deposition Distribution in Tea Canopy

WU Mengtao^1,2, LI Zhaoqun², YANG Yuzhou³, MENG Xiangfei¹, LUO Zongxiu², BIAN Lei², XIU Chunli², FU Nanxia², CHEN Zongmao², WANG Guochang^1,*, CAI Xiaoming^2,*

Author information +

文章历史 +

摘要

在茶园对四旋翼植保无人机（极目EA-30X）的喷雾雾滴粒径、飞行高度、飞行速度、喷雾量等作业参数进行了优选。结果显示：喷雾雾滴粒径、飞行高度、飞行速度、喷雾量均可显著影响雾滴在茶树冠层的沉积分布。随着喷雾雾滴粒径的增加,茶树树冠表层、内层的雾滴覆盖率和雾滴体积中径可显著增加。当喷雾雾滴粒径为100 µm时,茶树树冠表层、内层雾滴覆盖率分别是雾滴粒径为20 µm时的2.58倍和3.49倍。同样,喷雾量也可显著增加茶树树冠表层、内层的雾滴覆盖率和雾滴体积中径。当喷雾量从30 L·hm^-2增加至90 L·hm^-2时,树冠表层、内层的雾滴覆盖率最大可分别提升151%、141%。而随着飞行高度、飞行速度的降低,树冠表层、内层的覆盖率显著增加。当飞行高度从5 m降低到2 m时,树冠表层、内层的雾滴覆盖率最大可分别提升45%、173%;当飞行速度从5 m·s^-1降低到2 m·s^-1时,树冠表层、内层雾滴覆盖率最大可分别提升84%、252%。总体来看,在保证作业安全和效率的前提下,降低飞行高度和飞行速度,增加喷雾量,可以显著提高雾滴在茶树冠层表层的覆盖率。建议极目EA-30X植保无人机在茶园作业参数为喷雾雾滴粒径100 µm、飞行高度2 m、飞行速度2 m·s^-1、喷雾量90 L·hm^-2。

Abstract

In order to improve the droplet deposition distribution and enhance the control effect, the operational parameters (spray droplet size, flight height, flight speed and spray volume) of a four-multirotor plant protection unmanned aerial vehicle (EA-30X) were optimized in tea gardens. The results show that the spray droplet size, flight height, flight speed and spray volume could significantly affect the droplet deposition distribution in the tea canopy. With the increase of spray droplet size, the droplet coverage and volume median diameter in the surface and inner layers of the tea canopy could be significantly increased. When the spray droplet size was 100 µm, the droplet coverage in the surface and inner layers of the tea canopy was 2.58 and 3.49 times higher than that of 20 µm, respectively. Similarly, the spray volume also significantly increased the droplet coverage and droplet size in the surface and inner layers of the tea canopy. When the spray volume increased from 30 L·hm^-2 to 90 L·hm^-2, the droplet coverage in the surface and inner layers of the tea canopy were maximally increased by 151% and 141%, respectively. Moreover, the coverage of the surface and inner layers of the canopy could be significantly decreased with the increase of flight height and flight speed. When the flight height reduced from 5 m to 2 m, the maximum increase of the coverage of the surface and inner layers were 45% and 173%, respectively. When the flight speed decreased from 5 m·s^-1 to 2 m·s^-1, the maximum increase of the coverage of the surface and inner layers were 84% and 252%, respectively. Overall, under the premise of ensuring operational safety and efficiency, reducing the flight height and flight speed and increasing the spray volume can significantly improve the coverage of droplets in the surface layer of the tea canopy. The operational parameters of EA-30X in tea gardens were proposed as the spray droplet size of 100 µm, flight height of 2 m, flight speed of 2 m·s^-1, spray volume of 90 L·hm^-2.

导出引用

吴梦涛, 李兆群, 杨宇宙, 孟祥飞, 罗宗秀, 边磊, 修春丽, 付楠霞, 陈宗懋, 王国昌, 蔡晓明. 植保无人机作业参数对茶树冠层雾滴沉积分布的影响[J]. 茶叶科学. 2025, 45(3): 535-544 https://doi.org/10.13305/j.cnki.jts.20250520.001

WU Mengtao, LI Zhaoqun, YANG Yuzhou, MENG Xiangfei, LUO Zongxiu, BIAN Lei, XIU Chunli, FU Nanxia, CHEN Zongmao, WANG Guochang, CAI Xiaoming. The Effect of Operational Parameters of Plant Protection Unmanned Aerial Vehicle on the Droplet Deposition Distribution in Tea Canopy[J]. Journal of Tea Science. 2025, 45(3): 535-544 https://doi.org/10.13305/j.cnki.jts.20250520.001

中图分类号： S571.1 S252+.3

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