冬小麦精准播种施肥控制系统研究  

Study on control system of precise seeding and fertilizing for winter wheat

作　　者：陈满[1,2] 汪小旵[1,3] 孙国祥[1,3] 李永博[1,3] 张璐 

机构地区：[1]南京农业大学工学院,南京市210031 [2]农业部南京农业机械化研究所,南京市210014 [3]江苏省现代设施农业技术与装备工程实验室,南京市210031 [4]江苏省农业机械技术推广站,南京市210017

出　　处：《中国农机化学报》2016年第9期24-27,42,共5页Journal of Chinese Agricultural Mechanization

基　　金：江苏省农业科技自主创新资金资助项目(CX(14)2111)

摘　　要：为实现小麦生产过程中的实时精准播种施肥,应用机电一体化技术,通过PWM控制技术,研究设计冬小麦精准播种施肥机及其智能控制系统。该智能控制系统采用测速法反馈种子和肥料的流量信息,通过与目标播种量和施肥量的设定值进行比较,结合机具实时行进速度,实时调整电动机转速,从而实现精准播种施肥。试验结果表明,本文研制的冬小麦精准播种施肥机播种控制精度在85%以上,施肥控制精度在83%以上,能够达到精准播种施肥的要求。In order to realize real-time seeding and fertilizing precisely for winter wheat in the field,control system of precise seeding and fertilizing for winter wheat was designed based on mechanical and electrical integration technology and PWM controlling technology.Velocity feedback method was introduced to attain feedback of seed and fertilizer flow.Compared with the target value of the seed and fertilizer flow,and combined with real-time travel speed of the machine,motor speed was determined and adjusted to achieve realtime seeding and fertilizing precisely.The experimental results indicated that the seeding precision of the applicator could reach above85%,and the fertilizing precision could reach above 83%,which satisfied the seeding and fertilizing demand in the field.

关 键 词：冬小麦 精准播种 精准施肥 机电一体化 PWM 

分 类 号：S224.22[农业科学—农业机械化工程] TP271[农业科学—农业工程]