精准农业液态肥变量施用控制系统的设计  

Design of Control System of Variable Rate Liquid Fertilizer Applicator in Precision Agriculture

作　　者：梁春英[1] 王熙[2] 李鑫 

机构地区：[1]黑龙江八一农垦大学信息技术学院,大庆163319 [2]黑龙江八一农垦大学工程学院 [3]黑龙江省牡丹江恒丰纸业股份有限责任公司

出　　处：《黑龙江八一农垦大学学报》2008年第5期87-90,共4页journal of heilongjiang bayi agricultural university

基　　金：国家高技术研究发展计划(863计划)项目(2003AA209090;2006AA10A310)项目;黑龙江省重点攻关项目(GB04B703);黑龙江省重大攻关项目资助(GB06B601)

摘　　要：以单片机为核心器件,根据当前位置的施肥量,通过流量计对流量进行采样,将目前机具速度与获取的决策数据综合运算,将施肥量由数字量转变为液体的流量输出,构成闭环反馈调节,控制电动执行器的开度,从而实现变量控制施肥量。课题的研究意义在于把自动控制的理念应用到农业生产中,以提升我国农业的现代化、电气化、自动化。Taking SCM as the core device, according to the fertilization amount of the current location, the flow through the Flow Sensor was taken, applying the speed of the current equipment to acquire decision-making data to calculate generally, fertilizing capacity from digital quantity to the flow of liquid output was transformed. Finally a closed-loop feedback regulation to control the opening of electrical actuators was formed, thus variable control fertilization was achieved. The significance of the reseaich topics was the idea of automatic controlling applied to agricultural production and to enhance China＇s agricultural modernization, electrification and automation.

关 键 词：电动执行器 闭环系统 变量控制 

分 类 号：S147.21[农业科学—肥料学] TP273[农业科学—农业基础科学]