CAJ | 학술논문

超级稻每穴1～2株的栽植农艺给机械插秧的盘育秧播种提出了低播量、高均匀性的严格要求,为满足超级稻少本稀植的农艺要求,研发了振动气吸式盘育秧精密播种流水线.设计了以PLC为核心,集自编程序、传感器、步进电机加减速驱动脉冲控制等技术为一体的自动控制系统.在GX-Developer-C V8的环境下采用梯形图方法编制程序实现播种作业的协调动作和部件运动的精确定位,并可接入PC机实现播种作业的在线监控.试验和检测结果表明,播量精确到每穴1～2粒(格),均匀度合格率93.8%,空穴率5.6%,盘播种量一致性变异系数为2.5%,作业效率达每小时490盘,能满足超级稻及常规稻盘育秧精量播种要求.
초급도매혈1～2주적재식농예급궤계삽앙적반육앙파충제출료저파량、고균균성적엄격요구,위만족초급도소본희식적농예요구,연발료진동기흡식반육앙정밀파충류수선.설계료이PLC위핵심,집자편정서、전감기、보진전궤가감속구동맥충공제등기술위일체적자동공제계통.재GX-Developer-C V8적배경하채용제형도방법편제정서실현파충작업적협조동작화부건운동적정학정위,병가접입PC궤실현파충작업적재선감공.시험화검측결과표명,파량정학도매혈1～2립(격),균균도합격솔93.8%,공혈솔5.6%,반파충량일치성변이계수위2.5%,작업효솔체매소시490반,능만족초급도급상규도반육앙정량파충요구.
Agronomic techniques require 1or 2 seedlings in one cavity during the super-rice transplanting. It requested low quantity sowing and high uniformity machine transplantation. A high precision seeding assembly with vibration and air-suction for rice seedling nursing was developed to meet the requiements of precision and small quangtity in super-rice transplanting. An automatic control system based on PLC (programmable logic controller) was designed. Automatic programming techniques, sensor technology, and acceleration and deceleration control of step-motor were integrated into the system. System controlling software was programmed in the form of ladder diagram by GX-Developer-C V8, realizing accurate positioning of act device and coordinated of the action, and it can connect to PC to realize a real-time monitoring to the process of the sowing. The experiment and test of the seedling assembly indicated that seedling accuracy reached about 1-2 seeds per grid, passing rate of uniformity was 93.8%, space rate was 5.6%, unevenness of feeding rate between plates was 2.5%, operation efficiency reached 490 plates per hour. The automatic control system completely meets the requirements of seedling nursing precise sowing and transplanting for super-rice and conventional rice.