华南农业大学学报2024，Vol.45Issue(1)：88-96,9.DOI:10.7671/j.issn.1001-411X.202211013
具有自适应标定功能的施肥控制系统的设计与试验
Design and experiment of fertilization control system with adaptive calibration function
摘要
Abstract
[Objective]In view of the poor adaptability of the current fertilizer control system,and the need to recalibrate after changing fertilizer types and other problems,a fertilization control system with adaptive calibration function was designed.[Method]The volume density was introduced into the conventional calibration formula and a new calibration formula for various fertilizers was established and verified by experiments.With fertilizer type and displacement as experimental factors,fertilizer discharge accuracy and coefficient of variation as experimental indexes,and conventional fertilizer control system as control,the performance of the adaptive fertilizer control system using the new calibration formula was tested.[Result]The determination coefficient of the new displacement relation formula was 0.996,and the average relative error was 3.63％.Under the target displacement of 2000 to 12000 g/min in the adaptive control system using this formula,the maximum error of the discharge rate of spherical granular fertilizer was 5.46％,and the coefficient of variation was less than 3.54％.When using the conventional fertilizer control system(using compound fertilizer for calibration),the maximum relative error was 4.92％for compound fertilizer,10.92％for slow-release mixed fertilizer and 50.11％for calcium superphosphate fertilizer.[Conclusion]Compared with the conventional fertilization control system,the adaptive fertilization control system can adapt to a variety of fertilizers,and the displacement is accurate,which is helpful to improve the working efficiency and quality of the fertilizer applicator.关键词
施肥控制系统/新型标定公式/容积密度/自适应Key words
Fertilization control system/New calibration formula/Volumetric density/Adaptive分类
农业科技引用本文复制引用
万仕军,何瑞银,余洪峰,段庆飞,徐高明,孙国峻..具有自适应标定功能的施肥控制系统的设计与试验[J].华南农业大学学报,2024,45(1):88-96,9.基金项目
国家重点研发计划(2016YFD0300908) （2016YFD0300908）
