CAJ | 학술논문

为了提高播种机播种距离的精度,减少排种器打滑现象,以及降低地形、地质对精密播种的影响,提出了一种新的超高频无源RFID调速优化方法. 该方法考虑排种器无级变速和地轮的打滑,根据不同的地形和地质,可以自动调节播种机的速度,达到精密控制播距的效果. 系统利用播距控制原理和 RFID 调速控制原理,将RFID嵌入到了轮胎和排种器中,以 STC12C5A60S2 作为主控芯片,实现了速度数据的采集、处理和调节. 为了验证系统的有效性和可靠性,对普通机和调速机进行了播种测试,从而得到了速度随时间变化曲线及株距等测试数据. 对数据进行分析发现:利用RFID调速优化的方法可以实现播种机速度的连续性控制,并且株距明显比普通机的变异系数小,播种精度有了大幅度的提高,可以为播种机的优化设计提供技术参考.
위료제고파충궤파충거리적정도,감소배충기타활현상,이급강저지형、지질대정밀파충적영향,제출료일충신적초고빈무원RFID조속우화방법. 해방법고필배충기무급변속화지륜적타활,근거불동적지형화지질,가이자동조절파충궤적속도,체도정밀공제파거적효과. 계통이용파거공제원리화 RFID 조속공제원리,장RFID감입도료륜태화배충기중,이 STC12C5A60S2 작위주공심편,실현료속도수거적채집、처리화조절. 위료험증계통적유효성화가고성,대보통궤화조속궤진행료파충측시,종이득도료속도수시간변화곡선급주거등측시수거. 대수거진행분석발현:이용RFID조속우화적방법가이실현파충궤속도적련속성공제,병차주거명현비보통궤적변이계수소,파충정도유료대폭도적제고,가이위파충궤적우화설계제공기술삼고.
In order to improve the precision of sowing distance , reduce the seedmeter slipping phenomenon and influence of topography , improve the precision seeding , this paper proposes a new UHF Passive RFID timing optimization method . This method takes into account the metering device of stepless variable speed and wheel slip , according to different geo-logical and terrain , can automatically adjust the seeding machine speed , to achieve the precise control of sowing distance effect .System uses the sowing distance control principle and RFID speed control principle , embedding the RFID into the tire and the metering device , with STC12 C5 A60 S2 as the main control chip , realize data acquisition , processing and ad-justing the speed of data .In order to verify the validity and reliability of system , the ordinary machine and a speed adjus-ting machine sowing test , through the test obtained velocity changes with time curve and the spacing and other test data . Analysis of the data ,it can achieve a speed planter of continuous control by using the method of RFID optimal speed , and plant spacing is more obvious than the coefficient of variation of ordinary machine small , seeding accuracy has been greatly improved, which can provide technical reference for optimization design of seeder .