使用基于图像处理的液体浸泡方法在无人机喷雾系统 (UASS) 下冲洗空气流下测量喷雾滴的尺寸
Yangfan Li1,2,3, Zhichong Wang4, Peng Qi2,5
1College of Science, China Agricultural University, Beijing, China.
一种新的油 (SO) 液体浸泡方法准确地描述了无人机空中喷雾系统 (UASS) 的喷雾质量. 这种实用方法提高了农药应用效率,并减少了目标外漂移.
科学领域:
- 农业工程 农业工程
- 精准农业 精准农业 精准农业
- 喷雾技术技术 喷雾技术
背景情况:
- 精确的喷雾液滴尺寸分布对于通过无人机空中喷雾系统 (UASS) 优化农药应用至关重要.
- 传统的方法,如水敏感纸 (WSP) 和摄影纸 (PP) 由于滴滴传播和凝聚而存在不准确性.
- 飞行中的激光衍射在动荡的下水条件下进行现场测量是不切实际的.
研究的目的:
- 开发和验证一种基于图像处理的液体浸泡方法,用于表征UASS喷雾液滴大小分布.
- 为了比较油 (SO) 方法与WSP和PP的性能.
- 为了验证SO方法与实验室标准的激光衍射仪器相对应.
主要方法:
- 设计了一种定制的测试装置,用于从UASS中采集使用油作为收集介质的液滴.
- 分析了收集的液滴的高分辨率图像,以确定液滴大小分布.
- SO方法的结果与WSP,PP和激光衍射测量结果进行了比较.
主要成果:
- 基于油 (SO) 的Dv50估计显示与激光衍射有很强的相关性,变化率低于WSP和PP.
- 与WSP (16-22%) 和PP (22-32%) 相比,SO (CV 10-12%) 的滴滴大小均性更高.
- 在纸质方法显示膨胀大小的高沉积区域,SO方法提供了更一致的估计.
结论:
- 拟议的SO液体浸泡工作流程是UASS喷雾质量评估的实用,成本效益和现场部署的方法.
- 这种方法支持基于证据的优化喷嘴设置和飞行参数,以改善准.
- SO方法有助于减轻非目标农药漂移,提高应用性能.
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