| 基于脉宽调制的变量喷药技术控制系统 |
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| 引用本文： | 随顺涛,朱瑞祥,王丽丽.基于脉宽调制的变量喷药技术控制系统[J].农机化研究,2009,31(4). |
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| 作者姓名： | 随顺涛 朱瑞祥 王丽丽 |
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| 作者单位： | 西北农林科技大学,机电学院,陕西,杨凌712100 |
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| 基金项目： | 国家科技支撑计划重大项目 |
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| 摘 要： | 针对机组行走速度变化和施药机械施药量不能满足农艺要求的问题,设计了一种基于脉宽调制的变量喷药控制系统.该系统可根据车速的变化,由电子控制单元实时调整脉宽调制信号的占空比,进而控制脉宽,调制喷头的喷药量,实现了依据车速变化的变量施药作业.其目标是提高农药利用率,减轻化学物质对农业生态环境的污染.
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| 关 键 词： | 变量喷药 脉宽调制 控制系统 雷达测速 |
Controlling System Based on Pulse Width Modulation for Variable Spraying |
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| Sui Shuntao,Zhu Ruixiang,Wang Lili.Controlling System Based on Pulse Width Modulation for Variable Spraying[J].Journal of Agricultural Mechanization Research,2009,31(4). |
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| Authors: | Sui Shuntao Zhu Ruixiang Wang Lili |
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| Institution: | College of Mechanical and Electronic Engineering;Northwest A & F University;Yangling 712100;China |
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| Abstract: | Considering the problem that the amount of spraying can not meet the agriculture requirements because of via ration in tractor' running speed,a variable rate control system in spraying based on pulse width modulation(PWM) technique was designed.This system could adjust the duty factor in PWM signal using the electronic control unit according to the variation of tractor' speed real-timely,and thereby control the pulse width,and modulate nozzle's spraying quantity.And the purpose of variable spraying based on... |
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| Keywords: | variable rate spray PWM control system radar velocity measuring |
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