| 姚伟祥.单旋翼电动无人机对莲雾及荔枝树喷雾效果的试验[J].中国南方果树,2019,48(6): |
| 单旋翼电动无人机对莲雾及荔枝树喷雾效果的试验 |
| Experiment on Spray Effect of Wax Apple and Litchi Trees by Single-rotor Electric UAV |
| 投稿时间：2019-03-07 修订日期：2019-04-24 |
| DOI： |
| 中文关键词: 单旋翼电动无人机 航空喷雾 莲雾树 荔枝树 雾滴沉积规律 |
| 英文关键词:single-rotor electric UAV aerial spraying wax apple tree litchi tree droplet deposition law |
| 基金项目:国家重点研发计划项目（2016YFD0200700），广东省科技计划项目（2017B010117010），广东省重大科技计划项目 （2017B010116003） ， 广州市科技计划项目（201807010039） |
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| 摘要点击次数: 1887 |
| 全文下载次数: 2529 |
| 中文摘要: |
| 为了初步探究单旋翼电动无人机对莲雾与荔枝果树航空喷施的雾滴沉积效果，论证航空作业方式的可行性。针对2种果树设计了包含4个独立作业架次的喷施验证试验，研究了HB-Y-15L与DN-18N单旋翼电动无人机以常规作业参数对莲雾与荔枝果树进行往复式喷施作业时，对应果树冠层各层正反面采样区域的雾滴沉积分布情况。结果表明：在0.3～1.5 m/s的微风条件下，当2种型号的单旋翼电动无人机分别以距果树冠层顶部1 m的飞行高度、2 m/s的飞行速度对莲雾与荔枝果树进行往复式航空喷施作业时，机型对于莲雾、荔枝果树垂直各层采样区域的雾滴沉积水平的影响并不是很显著；经对比分析，HB-Y-15L型无人机喷施雾滴在莲雾树树冠各层间的雾滴穿透性（18.69%）较佳，DN-18N型无人机喷施雾滴在荔枝树树冠各层间的雾滴穿透性（21.25%）较佳；但2种机型在莲雾、荔枝果树各层正反面采样区域测得的雾滴分布均匀性值普遍处于50%以上水平，最高值高达210.06%，均表现出了较差的雾滴分布均匀性，果树沉积均匀性方面研究亟需加强；同时，在未来进行莲雾、荔枝果树航空喷施作业时，为了保证最佳的喷施有效沉积量，建议无人机配套使用喷雾角为80°的小喷雾角度的喷头。该研究结果初步揭示了单旋翼电动无人机应用在莲雾与荔枝果树上的喷施效果，可为合理喷施农药、提升农药利用率提供参考，对进一步推动莲雾、荔枝果树飞防作业普及具有重要的指导意义。 |
| 英文摘要: |
| In order to initially explore the effect of single-rotor electric unmanned aerial vehicle (UAV) on the droplet deposition of wax apple trees and litchi trees, and demonstrate the feasibility of aviation spraying, a spray verification test consisting of 4 independent flights was designed. In this paper, wax apple and litchi trees were sprayed by HB-Y-15L and DN-18N single-rotor electric UAVs in a reciprocating manner with routine operating parameters, the distribution of droplets in the sampling area of the front and back of each layer of the canopy layer was studied. The results show that under the conditions of wind speed of 0.3～1.5 m/s, when the two types of UAV were used for reciprocating spraying operations at a flight height of 1 m from the top of the canopy of the trees and a flight speed of 2 m/s, the influence of the UAV’s type on the deposition level of droplets in the sampling areas of the vertical layers of the trees was not significant. The penetration of droplets sprayed by HB-Y-15L UAV between different layers of the canopy of wax apple tree was better (18.69%), and that of DN-18N UAV between different layers of the canopy of litchi tree was better (21.25%). However, the droplet distribution uniformity values measured by the two UAVs in the front and back sampling areas of each layer of wax apple and litchi fruit tree were generally above 50%, and the highest value was as high as 210.06%, both of which showed poor droplet distribution uniformity. Therefore, it is urgent to strengthen the research on the deposition uniformity of fruit trees. At the same time, in order to ensure the optimal deposition of spray spray during the aerial spraying operation of wax apple and litchi trees in the future, it is suggested that the UAV be equipped with a small spray angle nozzle with a spray angle of 80°. The results of this study preliminarily revealed the spraying effect of single-rotor electric UAV on wax apple and litchi trees, which can provide references for rational spraying of pesticides and improving the utilization rate of pesticides, and has important guiding significance for further promoting the popularization of wax apple and litchi trees aerial spraying operations. |
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