评估平面种植系统中使用的无人喷洒器的喷洒模式和效率

IF 5.4 2区 农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY
Chenchen Kang, Long He, Heping Zhu
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引用次数: 0

摘要

精准农业中的自动化技术使无人驾驶系统能够通过控制喷嘴的移动,精确地向目标区域喷洒化学品。对这些喷洒器进行定量评估可以加强喷洒策略,满足不同冠层大小、行距和覆盖目标的需要。这项研究对配备了云台喷头的无人驾驶喷雾器进行了评估,以实现目标区域控制和喷雾覆盖范围调整。对喷嘴垂直移动和喷雾器前进时树冠上的喷雾云路径进行了数学模拟。根据果园/葡萄园的几何参数,开发了一个确定摆动角度的模型。然后将该模型应用于葡萄园和苹果园的实地测试。以平均覆盖率和液滴密度作为评估标准,试验了各种喷头角度、驱动速度和流量。研究结果表明,所开发的模型为确定摆动角度提供了一种有效的方法。降低驱动速度和提高流速可显著提高覆盖率。事实证明,45º 的喷嘴喷射角度在葡萄园更有效,而 90º 的角度在苹果园效果更好,这反映了树冠大小和行距的变化。无人喷洒器在葡萄园和果园的自主喷洒方面展示了巨大的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Assessment of spray patterns and efficiency of an unmanned sprayer used in planar growing systems

Assessment of spray patterns and efficiency of an unmanned sprayer used in planar growing systems

Automated technologies in precision agriculture enable unmanned systems to precisely target areas with chemicals through controlled nozzle movements. Quantitative assessment of these sprayers can enhance spraying strategies, catering to different canopy sizes, row spacing and coverage objectives. This research assessed an unmanned sprayer equipped with pan-tilt nozzles for targeted area control and spray coverage adjustment. The spray cloud path on the canopy, as the nozzles moved vertically and the sprayer advanced, was simulated mathematically. A model was developed to determine the swing angle based on orchard/vineyard geometrical parameters. This model was then applied in field tests in a vineyard and an apple orchard. Various nozzle-heading angles, driving speeds, and flow rates were experimented with, using average coverage and droplet density as the evaluation criterion. The findings showed that the developed model offered an effective method for determining the swing angles. Lowering driving speeds and increasing flow rates were found to notably enhance coverage. A 45º nozzle-heading angle proved more effective in vineyards, whereas a 90º angle yielded better results in apple orchards, reflecting the variations in canopy size and row spacing. The unmanned sprayer demonstrated great potential for autonomous spraying in vineyards and orchards.

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来源期刊
Precision Agriculture
Precision Agriculture 农林科学-农业综合
CiteScore
12.30
自引率
8.10%
发文量
103
审稿时长
>24 weeks
期刊介绍: Precision Agriculture promotes the most innovative results coming from the research in the field of precision agriculture. It provides an effective forum for disseminating original and fundamental research and experience in the rapidly advancing area of precision farming. There are many topics in the field of precision agriculture; therefore, the topics that are addressed include, but are not limited to: Natural Resources Variability: Soil and landscape variability, digital elevation models, soil mapping, geostatistics, geographic information systems, microclimate, weather forecasting, remote sensing, management units, scale, etc. Managing Variability: Sampling techniques, site-specific nutrient and crop protection chemical recommendation, crop quality, tillage, seed density, seed variety, yield mapping, remote sensing, record keeping systems, data interpretation and use, crops (corn, wheat, sugar beets, potatoes, peanut, cotton, vegetables, etc.), management scale, etc. Engineering Technology: Computers, positioning systems, DGPS, machinery, tillage, planting, nutrient and crop protection implements, manure, irrigation, fertigation, yield monitor and mapping, soil physical and chemical characteristic sensors, weed/pest mapping, etc. Profitability: MEY, net returns, BMPs, optimum recommendations, crop quality, technology cost, sustainability, social impacts, marketing, cooperatives, farm scale, crop type, etc. Environment: Nutrient, crop protection chemicals, sediments, leaching, runoff, practices, field, watershed, on/off farm, artificial drainage, ground water, surface water, etc. Technology Transfer: Skill needs, education, training, outreach, methods, surveys, agri-business, producers, distance education, Internet, simulations models, decision support systems, expert systems, on-farm experimentation, partnerships, quality of rural life, etc.
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