Prediction model for the initial seed clearing angles of a precision seedmeter based on vector fields
Keywords:
mechanical precision seeder, initial seed clearing angle, prediction model, vector fields, high-speed photographytechnologyAbstract
Seed clearing is a critical stage during precision seed metering process to ensure high seed singulation. However,there is a lack of understanding of the dynamics in the seed clearing process. In this study, a model was developed to predictinitial seed clearing angle, in the seed clearing process using vector fields. The model was applied to an existing high-speedmetering device and soybean seeds, and the model was evaluated with bench testing results. Results showed that dynamicchanges in forces and constraints of seeds during the seed clearing process could be abstracted as vectors, and the changes ofvector directions could be described by their phase angles. The phase angles were functions of the rotational angle of the seedmeter. The phase angle of the constraint boundary linearly increases with the increase of the rotational angle. The phase angleof the force fluctuates, as the rotational angle changes. Initial seed clearing angle obtained from the phase angles varies from 8°to 59°, depending on the seeder travel speed. When comparing the values of the initial seed clearing angles predicted by themodel with those from the bench tests, the root mean square error (RMSE) were from 2.73 to 3.14, and the correlation (r)between predict and observer were all higher than 0.98, indicating that the model had reasonably good accuracy. Keywords: mechanical precision seeder, initial seed clearing angle, prediction model, vector fields, high-speed photographytechnology DOI: 10.25165/j.ijabe.20241702.7029 Citation: Jiao W, Zhang J J, Chen X H, Shen H, Huang Y X, Shi J T. Prediction model for the initial seed clearing angles of aprecision seed meter based on vector fields. Int J Agric & Biol Eng, 2024; 17(2): 140–148References
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[2] Cay A, Kocabiyik H, May S. Development of an electro-mechanic control system for seed-metering unit of single seed corn planters part I: design and laboratory simulation. Computers & Electronics in Agriculture, 2018; 144: 71–79.
[3] He J, Zhang Z Q, Li H W, Wang Q J. Development of small/medium size no-till and minimum-till seeders in Asia: A review. Int J Agric & Biol Eng, 2014; 7(4): 1–12.
[4] Wang J W, Tang H, Guan R, Li X, Bai H C, Tian L Q. Optimization design and experiment on clamping static and dynamic finger-spoon maize precision seed metering device. Transactions of the CSAM, 2017; 48(12): 48–57. (in Chinese)
[5] Jia H L, Chen Y L, Zhao J L, Guo M Z, Huang D Y, Zhuang J. Design and key parameter optimization of an agitated soybean seed metering device with horizontal seed filling. Int J Agric & Biol Eng, 2018; 11(2): 76–87.
[6] Yu Y, Hu Y R, Shang S Q, Diao L S, Ge R C, Zhang X. Design of motor-driven precision seed-metering device with improved fuzzy PID controller for small peanut planters. Int J Agric & Biol Eng, 2023; 16(1): 136–144.
[7] Nikolay Z, Nikolay K, Gao X J, Li Q W, Mi G P, Huang Y X. Design and testing of novel seed miss prevention system for single seed precision metering devices. Computers & Electronics in Agriculture, 2022; 198: 107048.
[8] Xu J, Sun S L, He Z K, Wang X M, Zeng Z H, Li J, Wu W B. Design and optimisation of seed-metering plate of air-suction vegetable seed-metering device based on DEM-CFD. Biosystems Engineering, 2023; 230: 277–300.
[9] Gao X J, Xie G F, Li J, Shi G S, Lai Q H, Huang Y X. Design and validation of a centrifugal variable-diameter pneumatic high-speed precision seed-metering device for maize. Biosystems Engineering, 2023; 227: 161–181.
[10] Zhao Y X, Jian X D. Analysis of cleaning process of mechanical precision seed-metering device. Transactions of the CSAM, 2006; 37(11): 193–194. (in Chinese)
[11] Li C H, Xia J M, He B. Analysis and experiment of seed metering procedure in scoop metering device with declined disc. Transactions of the CSAM, 2004; 35(3): 68–71. (in Chinese)
[12] Xu J, Cai Z S, Gan Y Q, Zhang L L. Optimization study on seed clearing process for declined disc-scooptype soybean seed metering device based on EDEM. Journal of Northeast Agricultural University, 2018; 49(10): 79–88. (in Chinese)
[13] Xue P, Xia X Y, Gao P Y, Ren D, Hao Y J, Zheng Z Q, et al. Double-setting seed-metering device for precision planting of soybean at high speeds. Trans of ASABE, 2019; 62(1): 187–196.
[14] Yazgi A, Degirmencioglu A. Optimisation of the seed spacing uniformity performance of a vacuum-type precision seeder using response surface methodology. Biosystems Engineering, 2007; 97(3): 347–356.
[15] Yu J Q, Shen Y F, Niu X T, Fu H, Ni T H. DEM simulation and analysis of the clearing process in precision metering device with combination inner-cell. Transactions of the CSAE, 2008; 24(5): 105–109. (in Chinese)
[16] Miller E A, Rascon J, Koller A, Porter W M, Taylor R K, Raun W R, et al. Evaluation of corn seed vacuum metering systems. Transactions of the ASABE, 2012, Dallas, Texas, July 29 - August 1.
[17] An X, Wang S, Duan H Y, Yang C, Yu Y C. Test on effect of the operating speed of maize-soybean interplanting seeders on performance of seeder-metering devices. Procedia Engineering, 2017; 174: 353–359.
[18] Hang C G, Gao X J, Yuan M C, Huang Y X, Zhu R X. Discrete element simulations and experiments of soil disturbance as affected by the tine spacing of subsoiler. Biosystems Engineering, 2018; 168: 73–82.
[19] Dun G Q, Mao N, Gao Z Y, Wu X P, Liu W H, Zhou C. Model construction of soybean average diameter and hole parameters of seed-metering wheel based on DEM. Int J Agric & Biol Eng, 2022; 15(1): 101–110.
[20] Zheng B X, Du X H, Xi Y. A new algorithm of outlier mining in time series data. Control and Decision, 2002; 3: 324–327.
[21] Lei X L, Liao Y T, Li Z D, Cao X Y, Li S S, Wei Y P, et al. Design and experiment of seed feeding device in air-assisted centralized metering device for rapeseed and wheat. Transactions of the CSAE, 2015; 31(20): 10–18. (in Chinese)
[22] Mei Z X, Xia J F, Zhang J M, Du J, Yang Q J, Hu M J, et al. Seeding performance of seed metering device with Spiral tube scooping for rice and wheat. Journal of Huazhong Agricultural University, 2020; 39(5): 136–146. (in Chinese)
[23] Ding H J, Song Y H, Hu Z C, Wu J C, Fan X X. Probability density function of day-ahead wind power forecast errors based on power curves of wind farms. Proceedings of the CSEE, 2013; 33(34): 136–144. (in Chinese)
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Published
2024-05-21
How to Cite
Wan, J., Zhang, J., Chen, X., Shen, H., Huang, Y., & Shi, J. (2024). Prediction model for the initial seed clearing angles of a precision seedmeter based on vector fields. International Journal of Agricultural and Biological Engineering, 17(2), 140–148. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/7029
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Power and Machinery Systems
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