Development of a PVDF sensor for potted seedling clamping force of vegetable transplanting

Authors

  • Jiangtao Ji 1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China; 2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province, Luoyang 471003, China
  • Jingwei Sun 2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province, Luoyang 471003, China
  • Xin Jin 1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China; 2. Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing of Henan Province, Luoyang 471003, China
  • Mingyong Li 1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China;
  • Xinwu Du 1. College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003, China;

DOI:

https://doi.org/10.25165/ijabe.v12i5.5094

Keywords:

seedling clamping force, PVDF piezoelectric film, semi-micro-column structure, hardware circuit

Abstract

Aiming at the problems of loose bowl, nutritive bowl damage and planting leakage caused by lack of perception and detection of seedling clamping force in vegetable transplanting, a semi-micro-column structure sensor for measuring potted seedling clamping force was developed based on polyvinylidene fluoride (PVDF) piezoelectric film. The diameter of the semi-micro-column is 4 mm. The size of the force probe is 14 mm×30 mm, the encapsulation position of the force probe is 25 mm away from the tip of the seedling claw. The hardware circuit for sensor signal acquisition including pre-amplification module, power frequency notch module, low-pass filter module, processor module and power module was designed. The circuit completes charge-voltage conversion, clamping force signal amplification, power frequency signal elimination, vibration and noise elimination, and ensures the accurate acquisition of clamping force signal. In order to verify the sensor performance, sensor calibration tests and indoor experiments were carried out respectively. The calibration tests showed that the sensitivity of the clamping force sensor was 0.5264 V/N, the linearity was 4.74%, the accuracy was 6.51%, the hysteresis was 3.63%, and the range was 8 N under the impact of different waveforms and frequencies, which fully meet the accuracy requirements of the clamping force detection during transplanting. Indoor experiments showed that the clamping force sensor had good stability and adaptability under different seedling frequencies. The sensor can provide useful reference for the perception and detection of seedling clamping force and the feedback regulation of seedling clamping force. Keywords: seedling clamping force, PVDF piezoelectric film, semi-micro-column structure, hardware circuit DOI: 10.25165/j.ijabe.20191205.5094 Citation: Ji J T, Sun J W, Jin X, Li M Y, Du X W. Development of a PVDF sensor for potted seedling clamping force of vegetable transplanting. Int J Agric & Biol Eng, 2019; 12(5): 111–118.

References

Yu G H, Liao P Z, Xu L H, Zhao P, Wu C Y. Optimization design and test of large spacing planetary gear train for vegetable pot-seedling planting mechanism. Transactions of the CSAM, 2015; 46(7): 38–44. (in Chinese)

Zhang Z G, Lv Q G, Chen Q Y, Xu H J, Li H K, Zhang N N, et al. Status analysis of picking seedling transplanting mechanism automatic mechanism for potted flower. Journal of Jiangsu University (Natural Science Edition), 2016; 37(4): 409–417. (in Chinese)

Gao F, Li H C. Research on the influence of vegetable mechanization production on the planting quality of seedlings. Journal of Agricultural Mechanization Research, 2018; 40(12): 125–129. (in Chinese)

Konishi T, Horio M, Yoshida S. Development of high performance rice transplanter. Journal of the Japanese Society of Agricultural Machinery, 2010; 51(5): 89–95.

Liu J D, Cao W B, Tian D Y, Tang H Y, Zhao H Z. Kinematic analysis and experiment of planetary five-bar planting mechanism for zero-speed transplanting on mulch film. Int J Agric & Biol Eng, 2016; 9(4): 84–91.

Wang Y W, He Z L, Wang J, Wu C Y, Yu G H, Tang Y H. Experiment on transplanting performance of automatic vegetable pot seedling transplanter for dry land. Transactions of the CSAE, 2018; 34(03): 19–25. (in Chinese)

Zhou M F, Xu J J, Tong J H, Yu G H, Zhao X, Xie J. Design and experiment of integrated automatic transplanting mechanism for taking and planting of flower plug seedlings. Transactions of the CSAE, 2018; 34(20): 44–51. (in Chinese)

Tong J H, Jiang H Y, Jiang Z H, Cui D. Experiment on parameter optimization of gripper needles clamping seedling plug for automatic transplanter. Transactions of the CSAE, 2014; 30(16): 8–16. (in Chinese)

Guo L S, Zhang W J. Kinematic analysis of a rice transplanting mechanism with eccentric planetary gear trains. Mechanism and Machine Theory, 2001; 36(11): 1175–1188.

Yang Y, Ting K C, Giacomelli G A. Factors affecting performance of sliding-needles gripper during robotic transplanting of seedlings. Applied Engineering in Agriculture, 1991; 7(4): 493–498.

Ting K C, Giacomelli G A, Shen S J. Robot workcell for transplanting of seedlings. Part II: Layout and materials flow. Transactions of the ASAE, 1990; 33(3): 1005–1010.

Ting K C, Giacomelli G A, Shen S J. Robot workcell for transplanting of seedlings. Part II: End-effector development. Transactions of the ASAE, 1990; 33(3): 1013–1017.

COTTON D P J, CHAPPELL P H, CRANNY A. A novel thick-film piezoelectric slip sensor for a prosthetic hand. IEEE Sensors Journal, 2007; 7(5): 752–761.

Liao Q X, Zhang Z, Hu Q L, Xu B. Design and trajectory analysis of pneumatic picking-up mechanism for rape paper pot Seedling. Transactions of the CSAM, 2017; 48(11): 70–78. (in Chinese)

Zhang L H, Qiu L C, Tian S B, Xiang Q L. Design of a needle clamping claw for plug seedling transplanting. Journal of Shenyang Agricultural University, 2010; 41(2): 235–237. (in Chinese)

Zhao Y, Fan F L, Song Z C, Na M J, Zuo Y J, Feng Y, et al. Design and simulation of inverted vegetable pot seedling transplanting mechanism with conjugate cam. Transactions of the CSAE, 2014; 30(14): 8–16. (in Chinese)

Ji J T, Yang L H, Jin X, Gao S, Pang J, Wang J L. Design and parameter optimization of planetary gear- train slip type pot seedling planting mechanism. Transactions of the CSAE, 2018; 34(18): 83–92. (in Chinese)

Jin X, Ji J T, Liu W X, He Y K, Du X W. Structural optimization of duckbilled transplanter based on dynamic model of pot seedling movement. Transactions of the CSAE, 2018; 34(9): 58–67. (in Chinese)

Jin, X, Li D Y, Ma H, Ji J T, Zhao K X, Pang, J. Development of single row automatic transplanting device for potted vegetable seedlings. Int J Agric & Biol Eng, 2018; 11(3): 67–75.

Ye B L, Yi W M, Yu G H, Gao Y, Zhao X. Optimization design and test of rice plug seedling transplanting mechanism of planetary gear train with incomplete eccentric circular gear and non-circular gears. Int J Agric & Biol Eng, 2017; 10(6): 43–55.

Tao Y T, Zhou J, Meng Y M, Zhang N, Yang X Y. Design and experiment of tactile sensors for testing surface roughness of fruits and vegetable. Transactions of the CSAM, 2015; 46(11): 16–21. (in Chinese)

Yun B. Research of grasp technique based on visual and tactile sensing. Harbin Institute of Technology, 2011. (in Chinese)

Cui Y G, Zhu Y X, Lou J Q, Feng F Y. Detection of finger displacement and gripping force of piezoelectric micro-gripper. Optics and Precision Engineering, 2015; 23(05): 1372–1379. (in Chinese)

Zhou J, Zhu S Q. Slippage Detection in gripping fruits and vegetables for agricultural robot. Transactions of the CSAM, 2013; 44(2): 171–176. (in Chinese)

Hu J, Han L H, Wen Y F, Yu S, Chu J H, Yang Y. Mechanical properties of different vegetable plug seedlings as related to automatic transplanting. Journal of Agricultural Mechanization Research, 2018; 40(5): 132–136. (in Chinese)

Wang Y, Cheng J N, Wu J W, Zhao Y. Mechanics property experiment of broccoli seedling oriented to mechanized planting. Transactions of the CSAE, 2014; 30(24): 1–10. (in Chinese)

Ji J T, Li M Y, Jin X, Pang J, Lv H Z. Experiment on mechanical properties of pepper seedlings based on high-speed and low-loss planting. International Agricultural Engineering Journal, 2017; 26(4): 175–183.

Han L H, Mao H P, Liao X H, Hu J P, Yang X J. Design of automatic picking up seedling end-effector based on mechanical properties of plug seedlings. Transactions of the CSAM, 2013; 44(11): 260–265. (in Chinese)

Li H, Cao W B, Li S F, Liu J D, Chen B B, Mao X X. Development of 2ZXM-2 automatic plastic film mulching plug seedling transplanter for vegetable. Transactions of the CSAE, 2017; 33(15): 23–33. (in Chinese)

Zhao Y, Zhang W X, Xin L, Xie J T, Xue X L, Shan Y Y. Design and Experiment of Extensible Potted Tomatoes Seedling Transplanting Mechanism. Transactions of the CSAM, 2019; 50(1): 105–112. (in Chinese)

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Published

2019-10-14

How to Cite

Ji, J., Sun, J., Jin, X., Li, M., & Du, X. (2019). Development of a PVDF sensor for potted seedling clamping force of vegetable transplanting. International Journal of Agricultural and Biological Engineering, 12(5), 111–118. https://doi.org/10.25165/ijabe.v12i5.5094

Issue

Vol. 12 No. 5 (2019): IJABE

Section

Power and Machinery Systems

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