基于RBF-PID的棉花变量施肥控制系统设计与试验  

Design and Test of Variable Fertilization Control System for Cotton Based on RBF-PID

作　　者：卜浩然 张立新[1] 董万城 余思遥 夏元清[2] Bu Haoran;Zhang Lixin;Dong Wancheng;Yu Siyao;Xia Yuanqing(School of Mechanical and Electrical Engineering,Shihezi University,Shihezi 832000,China;Key Laboratory of Intelligent Control and Decision Making for Complex Systems,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]石河子大学机械电气工程学院,新疆石河子832000 [2]北京理工大学复杂系统智能控制与决策重点实验室,北京100081

出　　处：《农机化研究》2025年第6期106-111,共6页Journal of Agricultural Mechanization Research

基　　金：新疆生产建设兵团重点领域科技攻关计划项目(2020AB002)。

摘　　要：随着我国北斗卫星导航技术和自动控制技术的不断发展完善,精准农业技术逐渐成为研究重点。为此,基于RBF-PID控制调节算法,设计了一种以PLC为核心的变量施肥闭环控制系统,可根据北斗定位信息和不同地块施肥处方,利用步进电机驱动排肥器分别对N、P、K等3种肥料进行单独控制,实现精准变量施肥。最后,对控制系统的施肥性能(施肥精度、施肥均匀性)进行了试验,结果表明:排肥量最大相对误差ε为3.85%,最大均匀性变异系数σ为2.81%,满足精准施肥作业要求。With the continuous development and improvement of BeiDou satellite navigation technology and automatic control technology in China,precision agriculture technology has gradually become the focus of research.In this paper,based on RBF-PID control and regulation algorithm,a PLC-based closed-loop control system for variable fertilization was designed,which can realize precise variable fertilization by using stepper motor-driven fertilizer rower to control N,P and K fertilizers individually according to BeiDou positioning information and fertilization prescriptions of different plots.Finally,the fertilization performance(fertilization accuracy and fertilization uniformity)of the control system was tested,the results showed that the maximum relative errorεof the fertilizer discharge volume was 3.85%and the maximum uniformity coefficient of variationσwas 2.81%,which met the requirements of precision fertilization operation.

关 键 词：棉花 变量施肥 RBF-PID 精准农业 北斗导航 

分 类 号：S224.2[农业科学—农业机械化工程] S220.39[农业科学—农业工程]