CAJ | 학술논문

为实现标准化幼苗的生产，提出了大粒种子定向定位排种方法，研制了调向排种机构。该机构主要由调向板、进种导向板和出种导向管构成，可实现对大粒种子长轴保持45°方向、种子发芽口朝向一致并位于穴孔中心位置定向定位排种。为此，以南瓜种子为研究对象，通过参数优化试验确定了结构设计参数，利用3D 打印技术试制了机构，最后以单片机为控制单元、步进电机作为驱动源，结合基于机器视觉技术的大粒种子方向的判别方法和控制方法，对机构的定向定位排种性能进行了试验。结果表明：该装置的定向定位排种成功率为97．1％，94．7％的种子的发芽口分布在以穴孔中心为圆心、半径为10mm的圆内，95．9％以上种子偏转角度小于15°，基本满足大粒南瓜种子的定向定位播种要求。
위실현표준화유묘적생산，제출료대립충자정향정위배충방법，연제료조향배충궤구。해궤구주요유조향판、진충도향판화출충도향관구성，가실현대대립충자장축보지45°방향、충자발아구조향일치병위우혈공중심위치정향정위배충。위차，이남과충자위연구대상，통과삼수우화시험학정료결구설계삼수，이용3D 타인기술시제료궤구，최후이단편궤위공제단원、보진전궤작위구동원，결합기우궤기시각기술적대립충자방향적판별방법화공제방법，대궤구적정향정위배충성능진행료시험。결과표명：해장치적정향정위배충성공솔위97．1％，94．7％적충자적발아구분포재이혈공중심위원심、반경위10mm적원내，95．9％이상충자편전각도소우15°，기본만족대립남과충자적정향정위파충요구。
To realize the standardized seedling production , a directional seeding method and an adjustment direction and seeding mechanism were developed .This mechanism mainly consists of direction adjustment plate , guide plate and guide tube .The long axis of seeds could keep in the direction of 45 °and micropyle with the same direction locate in the center of the soil hole was realized .Pumpkin seed was taken as a research object in this paper .The design parameters of mechanism were determined by a parameter optimization test .the 3D printing technology was used to produce models of the adjustment direction and seeding mechanism base on the design parameters .At last , with Microcontroller as the con-trol unit and the stepper motor as a drive source , the adjustment direction and seeding mechanism for large cucurbita-ceous seeds was tested combined with the judgment and controlling methods of large seeds direction based on machine vi -sion .The results show that the directional seeding success rate of this device is 97 .1%.Above 94 .7%of the seeds mi-cropyle is distributed in a 10 mm radius from the center of the soil hole ,Above 95.9%of the seeds deflection angle are less than 15 °.