Design and Test of Entrainment Loss Detection System for Corn Kernel Direct Harvester

LIU Yangchun, LI Minghui, WANG Jizhong, FENG Lin, WANG Fengzhu, HE Xiaoning

Abstract

Aiming at the lack of entrainment loss detection technology in the current domestic corn kernel direct harvester kernel loss detection system, a corn kernel direct harvester entrainment loss detection system based on an embedded single-chip microcomputer was designed. The detection system included a loss detection sensor, a data collector and a data display terminal, which can monitor the cleaning loss and entrainment loss of the harvester at the same time, and feedback the harvesting loss rate and loss amount of the harvester in real time. The finite element analysis of monitoring boards of different materials and thicknesses was carried out through modal simulation software, and a 0.5mm thick 304 stainless steel plate was selected as the monitoring board;domestic EDA software was used to design signal processing circuits, including voltage followers and Butterworth filters, Multisim was used to simulate and analyze the performance of circuit;an adaptive time-limited filtering algorithm was designed based on the STM32 series single-chip microcomputer, which can effectively suppress the aftershock interference caused by the impact of grains and improve the accuracy of the sensor. On the test bench, under different conditions, the calibration test was carried out on corn kernels, residues and corn ears of different sizes to obtain signal characteristics;the installation test showed that the maximum error of the detection result of corn kernel entrainment loss was 9.96%, and the average error was about 6.52%, and the loss rate change trend feedback was timely, which can assist the staff in making operation decisions.


Keywords: corn kernel direct harvester, entrainment loss detection system, embedded single-chip microcomputer, adaptive time-limited filtering algorithm

 

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References


LI Yang,XUE Zhen, XU Lizhang,et al. Research progress on the monitoring methods of the separating loss in grain combine harvester [J] . Journal of Intelligent Agricultural Mechanization( in Chinese and English) ,2020,1 ( 1 ) : 13 -23.

WANG Zhiwen. Research on speed control system of combine harvester based on feed quantity forecast[ D]. Zhenjiang;Jiangsu University,2021. (in Chinese)

CHEN Du, WANG Shumao,KANG Feng,et al. Mathematical model of feeding rate and processing loss for combine harvester [J ]. Transactions of the CSAE ,2011 ,27 (9) ; 18 -21. (in Chinese)

XU Jiaojiao, LI Yaoming. A PVDF sensor for monitoring grain loss in combine harvester [ С ] // Computer and Computing Technologies in Agriculture ,2009 :499 -505.

LIANG Zhenwei. Study on grain separation loss monitoring sensor for axial flow combine harvester [ D ]. Zhenjiang: Jiangsu University,2013. (in Chinese)

WEI Chuncai. Study on the monitoring method and device for cleaning loss of the rapeseed combine harvester [D]. Zhenjiang: Jiangsu University,2018. (in Chinese)

CHEN Yi. Study on the monitoring method and device for cleaning loss of the combine harvester [ D ]. Zhenjiang: Jiangsu University,2013. (in Chinese)

GUY II J. Offset grain loss sensor for combine harvesters. US;4540003 Р]. 1985 -09 - 10.

ZHANG Meng,GENG Aijun,ZHANG Zhilong,et al. Research status and development trend of intelligent monitoring system for grain harvester J . Journal of Chinese Agricultural Mechanization ,2018 ,39 ( 9 ) :85 -90. (in Chinese)

ZHOU Xianlong,ZHU Ruixiang,ZHOU Xianjuan,et al. The nonitoring system for cleaning loss of the grain combine harvester based on sensor technology [ J ]. Journal of Agricultural Mechanization Research ,2010 ,32 ( 2 ) ;85 -87. (in Chinese)

LI Yaoming, LIANG Zhenwei, ZHAO Zlian, et al. Real-time monitoring system of grain loss in combine harvester [ J ]. LU Wentao,ZHANG Lijie, ZHANG Dongxing,et al. The research situation of monitoring and controlling system of combine harvester [ J ]. Journal of Agricultural Mechanization Research ,2014 ,36( 9 ) :256 -259,264. ( in Chinese)

LU Wentao,ZHANG Lijie, ZHANG Dongxing,et al. The research situation of monitoring and controlling system of combine harvester [J ]. Journal of Agricultural Mechanization Research ,2014 ,36( 9 ) :256 -259,264. ( in Chinese)

Transactions of the Chinese Society for Agricultural Machinery ,201 1 ,42( Supp. ) ;99 - 102. ( in Chinese)

TANG Feilong. Design and test of monitoring device of cleaning-loss for combine harvester D]. Chengdu: Xihua University, 2017. (in Chinese)

ZHANG Guangyue,JIN Chengqian, YANG Tengxiang,et al. Design and implementation of cleaning loss rate monitoring system for combine harvester [ J ]. Journal of Chinese Agricultural Mechanization ,2019 ,40(4 ) : 146 - 150. (in Chinese)

XIONG Sihua, LI Yanming, JIAO Zhongyuan, et al. Research on CAN-Rus monitoring system of rice and wheat combine harvester [J] . Journal of Agricultural Mechanization Research ,2019 ,41 (4) ; 190 - 193 ,199. ( in Chinese)

WANG Zhenyu. Design of threshing and separating device about corn grain harvester and automatic control system of entrainment loss[ D ]. Zhenjiang: Jiangsu University ,2021. (in Chinese)

DU Yuefeng,ZHANG Lirong,MAO Enrong,et al. Design and experiment of corn combine harvester grain loss monitoring sensor based on EMD[ J]. Transactions of the Chinese Society for Agricultural Machinery, 2022,53 ( Supp. 1 ) ; 158 - 165. (in Chinese)

WU Yanhan, LI Xiaoyu, MAO Enrong, et al. Design and development of monitoring device for corn grain cleaning loss based on piezoelectric effect[ J]. Computers and Electronics in Agriculture,2020 ,179 ; 105793.


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