农机化研究2016，Vol.38Issue(6)：31-35,5.
播种机嵌入式超高频无源RFID系统调速特性研究
Study on Speed Characteristics of Embedded UHF Pasive RFID System in Seeding Machine
摘要
Abstract
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 .关键词
播种机/播种精度/无源RFID/优化调速Key words
sowing machine/seeding accuracy/passive RFID/optimization speed分类
农业科技引用本文复制引用
王风燕,董珍珍,刘志刚..播种机嵌入式超高频无源RFID系统调速特性研究[J].农机化研究,2016,38(6):31-35,5.基金项目
国家自然科学基金青年基金项目(51305152) （51305152）
