Design and experiment of a control system for sweet potato seedling-feeding and planting device based on a pre-treatment seedling belt

Submitted: 20 August 2021
Accepted: 23 May 2022
Published: 30 June 2022
Abstract Views: 755
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Although existing sweet potato transplanters require automatic seedling feeding instead of manual seedling feeding, this causes seedling leakage and low efficiency. In this work, a control system for automatic seedling feeding of sweet potatoes was designed based on a pre-treatment seedling belt. The system uses STM32 as the main controller and obtains the running speed of the machine through the encoder. The speed of the planting motor can be adjusted in real-time according to the running speed to keep the planting distance stable. The speed control model and linkage control strategy of seedling-feeding and planting motors are investigated to keep the system feeding frequency and planting frequency consistent under running speed changes. In order to verify the performance of this control system, a test bench was built, and some experiments were conducted. The test results show that the average error of seedling-feeding motor speed is 4.04%, and that of planting motor speed is 3.28%. At medium and low operating speed levels, the stability of the seedling-feeding mechanism is good, and the relative errors of automatic seedling-feeding operation are 7.8% and 5.1%, respectively. The variation coefficients of plant spacing were 9.34% and 7.42%, respectively, indicating that the system could meet the seedling-feeding and planting device control requirements based on the seedling belt and realise continuous automatic seedling feeding in the process of sweet potato seedling transplanting.



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Fan Z., Wei C., Liu X., Jiang X., Zhu Y., Wang X. 2018. Relationships between transplanting methods and yield characters of sweet potato. J. Chin. Agri. Mech. 39:1-3+16.
Fuglie K.O. 2007. Priorities for potato research in developing countries: results of a survey. Am. J. Potato Res. 84:353-65.
Fukushima T., Sato K., Saito H., Nakamura S. 2010. Temporal changes in the shape and mechanical parameters of the hypocotyl of cabbage plug seedlings. J. Jpn. Soc. Hortic. Sci. 79:156-60.
Han C., Hu X., Zhang J., You J., Li H. 2021. Design and testing of the mechanical picking function of a high-speed seedling auto-transplanter. Artif. Intell. Agric. 5:64-71.
Hu L., Wang B., Wang G., Yu Z., You Z., Hu Z., Wang B., Gao X. 2016. Design and experiment of type 2ZGF-2 duplex sweet potato transplanter. Trans. Chin. Soc. Agric. Mach. 32:8-16.
Hu Q., Jiang W., Qiu S., Xing Z., Hu Y., Guo B., Liu G., Gao H., Zhang H., Wei H. 2020. Effect of wide-narrow row arrangement in mechanical pot-seedling transplanting and plant density on yield formation and grain quality of japonica rice. J. Integr. Agric. 19:1197-214.
Iqbal M.Z, Islam M.N., Ali M., Kabir M.S.N, Park T., Kang T.G., Park K.S., Chung S.O. 2021. Kinematic analysis of a hopper-type dibbling mechanism for a 2.6 kW two-row pepper transplanter. J. Mech. Sci. Technol. 35:2605-14.
Li H., Li Z., Dong W., Cao X., Wen Z., Xiao R., Wei Y., Zeng H., Ma X. 2021. An automatic approach for detecting seedlings per hill of machine-transplanted hybrid rice utilizing machine vision. Comput. Electron. Agric. 185:106178.
Khadatkar A., Mathur S.M, Gaikwad B.B. 2018. Automation in transplanting: a smart way of vegetable cultivation. Curr. Sci. 115:1884-92.
Mazzetto F., Calcante A. 2011. Highly automated vine cutting transplanter based on DGNSS-RTK technology integrated with hydraulic devices. Comput. Electron. Agric. 79:20-9.
Nagasaka Y., Umeda N., Kanetai Y., Taniwaki K., Sasaki Y. 2004. Autonomous guidance for rice transplant -ing using global positioning and gyroscopes. Comput. Electron. Agric. 43:223-34.
Ratnayake R.M., Balasoriya B.M.C.P. 2013. Re-design, fabrication, and performance evaluation of manual conical drum seeder: a case study. Appl. Eng. Agric. 29:139-47.
Raymundo R., Asseng S., Cammarano D., Quiroz R. 2014. Potato, sweet potato, and yam models for climate change: a review. Field Crop. Res. 166:173-85.
Shentu, L., Wu, X., Sun, X., Zhang, W., 2019. Design of sweet potato planting mechanism based on genetic algorithm. J. Chin. Agri. Mech. 40:6-11.
Shiratsuchi H., Kitagawa H., Okada K., Okada K., Nakanishi K., Suzuki M., Ogura A., Matsuzaki M., Yasumoto S. 2008. Development of rice ‘seed-mats’ consisting of hardened seeds with a cover of soil for the rice transplanter. Plant. Prod. Sci. 11:108-15.
Scott G.J. 2021. A review of root, tuber and banana crops in developing countries: past, present and future. Int. J. Food Sci. Tech. 56:1093-14.
Vithu P., Dash S.K., Rayaguru K. 2019. Post-Harvest processing and utilization of sweet potato: a review. Food Rev. Int. 35:726-62.
Wen Y., Zhang J., Tian J., Duan D., Zhang Y., Tan Y., Yuan T., Li X. 2021. Design of a traction double-row fully automatic transplanter for vegetable plug seedlings. Comput. Electron. Agric. 182:106017.
Xin L., Lv Z., Wang W., Zhou M., Zhao Y. 2017. Optimal design and development of a double-crank potted rice seedling transplanting mechanism. Trans. ASABE. 60:31-40.
Yang Q., Xu L., Shi X., Ibrar A., Mao H., Hu J., Han L. 2018. Design of seedlings separation device with reciprocating movement seedling cups and its controlling system of the full-automatic plug seedling transplanter. Comput. Electron. Agric. 147:131-45.
Yang Q., Huang G., Shi X., He M., Ahmad I., Zhao X., Addy M. 2020. Design of a control system for a mini-automatic transplanting machine of plug seedling. Comput. Electron. Agric. 169:105226.
Yu X., Zhao Y., Chen B., Zhou M., Zhang H., Zhang Z. 2014. Current situation and prospect of transplanter. Trans. Chin. Soc. Agric. Mach. 45:44-53.
Zhao H., Tang J., Yang Q. 2021. Effects of geographical origin, variety, harvest season, and their interactions on multi-elements in cereal, tuber, and legume crops for authenticity. J. Food Compos. Anal. 100:103900.
Zhong X., Peng J., Kang X., Wu Y., Luo G., Hu W., Zhou X. 2021. Optimizing agronomic traits and increasing economic returns of machine-transplanted rice with side-deep fertilization of double-cropping rice system in southern China. Field Crop. Res. 270:108191.

How to Cite

He, Y., Zhu, Q., Fu, W., Luo, C., Cong, Y., Qin, W., Meng, Z., Chen, L., Zhao, C. and Wu, G. (2022) “Design and experiment of a control system for sweet potato seedling-feeding and planting device based on a pre-treatment seedling belt”, Journal of Agricultural Engineering, 53(3). doi: 10.4081/jae.2022.1261.