Design and Experiment of a Breakpoint Continuous Spraying System for Automatic-Guidance Boom Sprayers

文献类型： 外文期刊

第一作者： Li, Chengqian

作者： Li, Chengqian;Zhai, Changyuan;Li, Chengqian;Wu, Jianguo;Pan, Xiaoyong;Dou, Hanjie;Zhao, Xueguan;Zhai, Changyuan;Li, Chengqian;Zhao, Xueguan;Yang, Shuo;Gao, Yuanyuan;Yang, Shuo

作者机构：

关键词： breakpoint continuous spraying; hysteresis compensation for spraying; repeated and missed spraying; guidance of agricultural machinery; boom sprayers

期刊名称：AGRICULTURE-BASEL （ 影响因子：3.6； 五年影响因子：3.6 ）

ISSN：

年卷期： 2023 年 13 卷 12 期

页码：

收录情况： SCI

摘要： Repeated and missed spraying are common problems during the working of boom sprayers, especially in the breakpoint continuous process. Therefore, the present study investigated a breakpoint continuous spraying system for automatic-guidance boom sprayers based on a hysteresis compensation algorithm for spraying. An operational breakpoint identification algorithm, which combines a real-time kinematic global navigation satellite system (RTK-GNSS) and wheel odometer, was proposed; a pre-adjusted proportional-integral-derivative (PID) control algorithm for the opening degree of the proportional control valve was designed in thus study. Tests were conducted to establish equations correlating the opening degree of the proportional control valve, pump output flow rate, and main pipeline flow rate, with an R2 >= 0.9525. The time to adjust to the target flow rate was experimentally tested. The breakpoint identification accuracy of the RTK-GNSS and RTK-GNSS + wheel odometer was experimentally assessed. A field spraying deposition variation experiment was conducted. According to the results, the system effectively eliminated missed spraying, with a maximum repeated spraying distance of <= 3.3 m, and it achieved a flow control error within 3%. This system also reduced the repeated spraying area and enhanced the pesticide spraying quality of breakpoint continuous spraying for automatic-guidance boom sprayers.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序