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张书慧,齐江涛,廖宗建,徐 岩.基于CPLD的变量施肥控制系统开发与应用[J].农业工程学报,2010,26(8):200-204.DOI:
基于CPLD的变量施肥控制系统开发与应用
投稿时间:2009-12-24  修订日期:2010-08-03
中文关键词:  肥料,控制系统,设计,变量施肥,CPLD,GPS
基金项目:国家“863” 高技术研究发展计划资助项目(2006AA10A309)
作者单位
张书慧 1.吉林大学工程仿生教育部重点实验室长春 130025 2.南京工业职业技术学院南京 210046 
齐江涛 1.吉林大学工程仿生教育部重点实验室长春 130025 
廖宗建 3.博世汽车部件(苏州)有限公司苏州 215024 
徐 岩 1.吉林大学工程仿生教育部重点实验室长春 130025 
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中文摘要:为提高变量施肥系统的工作稳定性,开发了一种基于复杂可编程逻辑器件(CPLD)的变量施肥控制系统。自动模式下,系统接收GPS信号确定施肥机位置和行进速度;手动模式下,系统通过速度传感器获取速度信号。系统将施肥机的行进速度与施肥处方信息相结合,控制排肥轴转速实现变量施肥。应用该系统进行变量施肥田间作业,累计作业面积达72 hm2。应用结果表明,该系统以150~600 kg/hm2实施变量施肥作业时,其排肥量误差小于6%。
.Research and application of control system for variable rate fertilizer applicator based on CPLD[J].Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE),2010,26(8):200-204.DOI:
Research and application of control system for variable rate fertilizer applicator based on CPLD
Author NameAffiliation
  
  
  
  
Key words:fertilizers, control systems, design, variable rate fertilization, complex programmable logic device, GPS
Abstract:In order to improve the performance of the variable rate fertilizer applicator’s control system, a control system for a variable rate fertilizer applicator based on the CPLD (complex programmable logic device) was designed and applied in field. Under automatic mode, the system judged the position and the ground speed for the variable rate fertilizer applicator by means of collecting GPS signals. At manual mode, the system judged the ground speed by speed sensor. This system controlled the fertilizer output through combination of a ground speed of fertilizer applicator and prescription data which were given by the Expert System according to the nutrient levels in soil and the theory of yield goal. This system has been applied in the field covering 72 hm2 totally in the past 4 years. The error of this system was less than 6%, when the fertilizer sowing amount was 150-600 kg/hm2.
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