农业机械学报2017，Vol.48Issue(2)：51-59,9.DOI:10.6041/j.issn.1000-1298.2017.02.007
电控玉米排种系统设计与试验
Design and Test of Electronic Control Seeding System for Maize
摘要
Abstract
When the traditional maize seeder works in the field,the power of seed metering device comes from ground steel.Aiming at the problem that the field conditions are so complicated that the ground steel will skid easily,then the miss index will be increased,an electronic maize sowing control system was designed.The police traffic radar collected the sowing operation speed when the sowing was started,then the control system will calculate the seed metering device rotational speed combined with the theoretical particle distance.The rotary encoder collected the seed metering device rotational speed,then the controller would process speed based on control strategy and obtained the last speed.The optimal process of control strategy can improve the accuracy.The results of the field test showed that when the electronic control seed metering device was working in the field,the average qualified index was 92.40％,which was increased by 3.63 percentage points compared with the traditional sowing.The average miss index was 4.82％ and it was reduced by 2.04 percentage points compared with the traditional sowing.The variability of seed-spaces was less than 4.20％ and the sowing effects were much more than the national standard.When the speed of sowing was more than 10km/h,the effects was worse than other cases,therefore some improvement on the structure to improve the accuracy.The design of the electronic control maize seed metering device provided some definite reference for study of sowing control system.关键词
精量玉米播种机/电控/排种系统Key words
precision maize planter/electronic control/seeding system分类
农业科技引用本文复制引用
张春岭,吴荣,陈黎卿..电控玉米排种系统设计与试验[J].农业机械学报,2017,48(2):51-59,9.基金项目
农业部公益性行业专项(201503136)和安徽省科技攻关项目(1501031104) （201503136）
