条施机定量施肥控制系统设计

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英文篇名：On Design of Control System with Quantitative Fertilization for Band Applicator 作者：董俊汶 ; 汪洋 ; 赵进 ; 李晓贤 ; 何培祥 英文作者：DONG Jun-wen;WANG Yang;ZHAO Jin;LI Xiao-xian;HE Pei-xiang;College of Hanhong, Southwest University;College of Engineering and Technology, Southwest University; 关键词：定量施肥 ; 控制系统 ; 条施机 ; PWM 英文关键词：quantitative fertilization;;control system;;band applicator;;PWM 中文刊名：XNZK 英文刊名：Journal of Southwest China Normal University(Natural Science Edition) 机构：西南大学含弘学院;西南大学工程技术学院; 出版日期：2019-04-20 出版单位：西南师范大学学报(自然科学版) 年：2019 期：v.44;No.265 基金：重庆市社会事业与民生保障科技创新项目(cstc2017shms-xdny80030) 语种：中文; 页：XNZK201904017 页数：7 CN：04 ISSN：50-1045/N 分类号：99-105

摘要

针对化肥利用率低,肥料浪费较为严重和精量施肥在我国推广实施难度较大的问题,设计了条施机定量施肥控制系统.先研究了条施机定量施肥的原理,在此基础上设计了定量施肥控制系统并对控制系统进行了电路设计和软件设计,对控制系统的条施机行走速度、单位距离排肥量、排肥电机电压与排肥量关系和PWM占空比进行了计算分析.田间试验表明,条施机设置施肥量为300～750 kg/hm~2,其定量施肥控制系统的最大偏差为5.28%,平均偏差为4.49%,定量施肥的控制精度较好,该定量施肥控制系统为施肥机控制系统的设计提供了参考.
        Low use efficiency of chemical fertilizer is a serious problem in China, which has caused tremendous waste of fertilizer and environmental pollution like soil pollution and water pollution. Precision fertilization is an effective solution. However, it is difficult to popularize and implement in our state. Thus, a control system with quantitative fertilization for band applicator has been designed in this paper. The design of control system is based on the research of quantitative-fertilization principle for band applicator. Circuit and software design has been proposed in this paper, and the computation of movement speed for band applicator, the calculation of fertilizer quantity in unit distance, the relationship between voltage of fertilizing motor and fertilizer quantity and the regulation of PWM duty have also been analyzed. The field experiment results show that with the quantitative-fertilization control system, the maximum error of fertilization is 5.28% and the mean error is 4.49% when fertilizer quantity is set to 300-750 kg/hm~2, which indicates the quantitative-fertilization control system is of high control accuracy. This study could provide a reference for the research and design of quantitative-fertilization control system for fertilizer applicators.

引文

[1] 赵建宁,左腾云,胡元盛.土壤肥料与我国粮食安全 [J].河北农业科学,2009,13(1):116-118.
    [2] 张涛,赵洁.变量施肥技术体系的研究进展 [J].农机化研究,2010,32(7):233-236.
    [3] 张晓辉,李汝莘.法国的精确农业研究及应用现状 [J].农机化研究,2002,24(1):12-15.
    [4] 赵春江,薛绪掌,王秀,等.精准农业技术体系的研究进展与展望 [J].农业工程学报,2003,19(4):7-12.
    [5] 宋洪儒,罗石磊,杨凡.基于PAC的多轴运动控制系统设计 [J].重庆理工大学学报(自然科学版),2017,31(4):115-120.
    [6] PAILLAT J M,GAILLARD F.PA—Precision Agriculture [J].Journal of Agricultural Engineering Research,2001,79(1):15-22.
    [7] 何勇.精细农业 [M].杭州:浙江大学出版社,2003.
    [8] 李宏光,赵正雄,杨勇,等.施肥量对烟田土壤氮素供应及烟叶产质量的影响 [J].西南师范大学学报(自然科学版),2007,32(4):37-42.
    [9] 郑磊.基于GPS的精确农业自动变量施肥控制系统的研究 [D].长春:吉林大学2009.
    [10] MORGAN-OWEN G J,JOHNSTON G T.Differential GPS Positioning [J].Electronics & Communication Engineering Journal,1995,7(1):11-21.
    [11] SAM B,KATHIRVEL K.Development and Evaluation of Vibration Isolators for Reducing Hand Transmitted Vibration of Walking and Riding Type Power Tillers [J].Biosystems Engineering,2009,103(4):427-437.
    [12] SIVáK P,HRONCOVá D.State-Space Model of a Mechanical System in MATLAB/Simulink [J].Procedia Engineering,2012,48:629-635.
    [13] 袁文胜,金梅,吴崇友,等.国内种肥施肥机械化发展现状及思考 [J].农机化研究,2011,33(12):1-5.
    [14] 汪洋,夏志林,何家成,等.垂直螺旋式定量施肥机的设计与试验 [J].农机化研究,2018,40(5):88-92.
    [15] 赵进.定量施肥机控制系统研究 [D].重庆:西南大学,2017.
    [16] 李晓贤,赵进,任震宇,等.小型竖直螺旋式精量条施机的设计 [J].农机化研究,2018,40(12):75-79.
    [17] 农业部农业机械试验鉴定总站,黑龙江省水田机制化研究所.施肥机械质量评价技术规范:NY/T1003-2006 [S].北京:中国农业出版社,2006:3.