Simulation and Experiment of Piezoelectric Vibration Super Rice Precision Seeding and Unifying Device
Abstract
A split and combined vibration seeding and leveling device was designed to address the problem of poor seeding performance of the vibrating seed metering device in the super rice seedling cultivation and sowing process that made it difficult to achieve precision seeding, and a vibration seed leveling control method based on image recognition was proposed. The single factor discrete element simulation analysis of the key structural parameters of the vibration plate was carried out. The results showed that the variation coefficient of the uniformity of the vibration plate and the variation coefficient of the supply uniformity at the exit of the vibration plate was increased with the increase of depth of box. With the increase of angle of steering groove, the depth of the seed storage box and the angle of the steering groove were determined to be 12mm and 48°, respectively. A seed stream image detection and control system was designed and built. The test of piezoelectric vibration monomer and homogenizing unit image detection and rectification showed that when the proportion of white low pixels in the detected image was less than 20%, after rectification, the proportion of white pixels could meet the design requirements. The results showed that the qualified rate was not less than 93.47% and the missed rate was not more than 1.00% when the operating voltage was 150~200V. The qualified sowing rate of the three rice seeds was not less than 94.17%, and the missing sowing rate was not more than 0.67%. The device can meet the requirements of precision sowing of super rice and had good adaptability to different super rice seeds.
Keywords: super rice, seed leveling device, discrete element method, image recognition
Download Full Text:
PDFReferences
ZHAO Lijun, CHEN Haitao, CAI Xiaohua, et al. Research on matrix formula of substrate for seeding in rice closed stereo seeding system[ J ]. Transactions of the CSAE, 2017,33(9) :204 -210. (in Chinese)
YUAN Longping. Progress in breeding of super hybrid rice [J ]. Journal of Agriculture, 2018 ,8 ( 1 ) : 7 1 -73. (in Chinese)
RASHID M H, GOSWAMI P C, HOSSAIN M F, et al. Mechanised non-puddled transplanting of boro rice following mustard conserves resources and enhances productivity [ J ]. Field Crops Research, 2018, 225: 83 -91.
LI Yuan. Progress in super-hybrid rice breeding [ J]. The Crop Journal, 2017,2(5) : 100 - 102.
CHEN Chenzhou. Related technology of hybrid rice seed production mechanization [D] . Beijing: Tsinghua University, 2016. ( in Chinese)
LIU Junhua, WU Zhengfeng, LI Lin, et al. Effect of different density on canopy structure and pod yield of peanut under single seed precision sowing [ J ]. Chinese Journal of Oil Crop Sciences, 2020, 42(6) ; 970 -977. (in Chinese)
LU Weian, HUANG Shiming, FENG Tianyu, et al. Design and test of hole-type seed meter [J] . Hubei Agricultural Sciences, 2020,59(16): 149 -152, 157. (in Chinese)
LI Lanlan, ZHU Dequan, ZHANG Shun, et al. Design and experiment of slider-hole-wheel precision hill-direct-seeding metering device for riee[ J ]. Acta Agriculture Zhejiangensis, 2018, 30( 12) : 2153 -2160. (in Chinese)
LI Zehua, MA Xu, LI Xiuhao, et al. Research progress of rice transplanting mechanization[ J ]. Transactions of the Chinese Society for Agricultural Machinery, 2018, 49(5) : 1 -20. (in Chinese)
LIU Cailing, SONG Jiannong, ZHANG Guangzhi, et al. Design and experimental study on rice precision suction seeder [J]. Transactions of the Chinese Society for Agricultural Machinery, 2005, 36(2) ; 43 -46. (in Chinese)
XING He, ZANG Ying, WANG Zaiman, et al. Design and experiment of stratified seed-filling room on rice pneumatic metering device [J]. Transactions of the CSAE, 2015, 31(4) : 42 -48. (in Chinese)
LIANG Yuyue, ZHENG Kan, DU Jun, et al. Performance test on vibrating feeder of seed metering device[J]. Journal of Shenyang Agricultural University, 2021 , 52(6) ;708 -717. (in Chinese)
LU Fangyuan. Working mechanism analysis and experimental research on two-stage double vibration rice precision seeder[ D]. Guangzhou: South China Agricultural University, 2018. (in Chinese)
QI Long, TAN Zuting, MA Xu, et al. Optimization and test of operational parameters of pneumatic vibration uniform-seeds device [J ]. Journal of Jilin University (Engineering and Technology Edition) , 2014, 44(6) : 1684 - 1691. (in Chinese)
LIU Cailing, LI Fanglin, YUAN Hao, et al. Design and experiment of piezoelectric vibration seed homogenizer for super hybrid rice[J]. Transactions of the Chinese Society for Agricultural Machinery, 2022, 53(Supp. 1 ) ; 58 -68. (in Chinese)
YUAN Hao, LIU Cailing, SONG Jiannong, et al. Piezoelectric vibration seed supply device of precision metering device for plug seedling of super hybrid rice [J] . Transactions of the Chinese Society for Agricultural Machinery, 2020, 51 ( Supp. 2) : 31 -40. (in Chinese)
Refbacks
- There are currently no refbacks.
