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| Research on deposition effect of droplets based on plant protection unmanned aerial vehicle: A review |
| HE Yong1,2, WU Jianjian1,2, FANG Hui1,2*, ZHENG Qishuai1,2, XIAO Shupei1,2, CEN Haiyan1,2 |
| (1. College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China; 2. Key Laboratory of Spectroscopy Sensing, Ministry of Agriculture and Rural Affairs, Hangzhou 310058, China) |
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Abstract In the process of agricultural sustainable development, diseases and insect pests have always been the focus of attention. Due to the flexibility and convenience, unmanned aerial vehicle (UAV) spray has attracted wide attention in the field of plant protection, and new progress has been made in prevention and control of diseases and insect pests. However, there are still some problems in the UAV spray technology, such as droplet drift and pesticide waste. The deposition effect of droplets is the greatest concern in the UAV spray operation. This paper summarized the characteristics of droplet deposition distribution and the influence factors on droplet deposition and its distribution. Besides, new methods of detecting droplet deposition were listed. The research showed that the deposition effect was influenced by many factors such as flight parameters, natural factors and spray equipment and modes, which should be integrated together in the UAV application, and the wind field
below the UAV should be especially included. Moreover, it is quite necessary to develop new types of nozzles and droplet deposition detection technology to provide a guarantee for improving the deposition effect of droplet.
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Published: 11 September 2018
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植保无人机雾滴沉积效果研究综述
在农业可持续发展进程中，病虫害问题一直是人们关注的焦点。无人机喷雾以其灵活、便捷等特点，在植保领域受到广泛关注，并在病虫害防治上取得新进展。但是，无人机喷雾技术仍存在雾滴飘移、药液流失等问题，且雾滴的沉积效果是无人机喷雾作业中最被关心的问题。本文综述了无人机喷雾雾滴的沉积分布特点，并总结分析了雾滴沉积分布的影响因素，同时列举了目前检测雾滴沉积的方法。研究表明，雾滴沉积效果受飞行参数、自然因素、喷雾雾化设备和喷雾方式等多因素影响，因此在做出采用无人机施药决策时，需要综合考虑多方面的因素，尤其是下旋风场对雾滴沉积的影响。此外，需要进一步研发出新型喷嘴及雾滴沉积检测技术，为提高雾滴沉积效果提供保障。
关键词：
无人机喷雾,
雾滴沉积,
检测
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