Laser & Optoelectronics Progress, Volume. 60, Issue 14, 1415002(2023)

Kinematic Parameter Identification of Industrial Robot Based on Binocular Vision

Yanqiong Shi1、*, Kefan Li1, Rongsheng Lu2, and Xiyong Zhou1
Author Affiliations
  • 1School of Mechanical and Electrical Engineering, Anhui Jianzhu University, Hefei 230601, Anhui, China
  • 2School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, Anhui, China
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    Figures & Tables(12)
    3D coordinate system relationship diagram of robotic arm
    Binocular vision recognition robot kinematic parameter system
    Pseudo-random sequence and Halton sequence comparison chart
    Flow chart of kinematic parameter identification by STAPSO
    Layout of the experimental device
    Measurement error diagrams of binocular vision system. (a) 70 mm error point set; (b) x, y axis 10 mm, 70 mm average error; (c) x-axis range error; (d) y-axis range error
    Spatial distribution of collection points
    Comparison chart of PSO algorithm iteration
    Comparison of identification results of each algorithm
    • Table 1. MDH model parameter table

      View table

      Table 1. MDH model parameter table

      jαi-1 /(°ai-1 /mmθi /(°di /mm
      100θ1144
      2900θ2-900
      30-264θ30
      40-236θ4-90106
      5900θ5114
      6-900θ667
    • Table 2. Parameter table of the identified MDH model

      View table

      Table 2. Parameter table of the identified MDH model

      jαi-1 /(°ai-1 /mmθi /(°di /mm
      10-0.17460θ1-0.3136144
      290+0.61590+0.9999θ2-90-0.99930
      30-0.7798-264+0.9999θ3+0.99990
      40-0.5255-236-0.2770θ4-90-0.6520106+0.5261
      590+0.99990+0.2263θ5+0.1365114+0.2078
      6-90+0.64890θ667+0.1015
    • Table 3. Statistical analysis of distance error

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      Table 3. Statistical analysis of distance error

      ParameterBefore calibrationtrust-region(increased accuracy /%)PSO(increased accuracy /%)STAPSO(increased accuracy /%)
      Maximum error /mm2.79030.8484(69.59)0.843(69.79)0.573(79.46)
      Minimum error /mm0.12650.055(56.52)0.051(59.68)0.0501(60.40)
      Average error /mm1.16010.3023(73.94)0.3164(72.73)0.226(80.52)
      Standard deviation /mm0.65820.2212(66.39)0.2037(69.05)0.1412(78.55)
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    Yanqiong Shi, Kefan Li, Rongsheng Lu, Xiyong Zhou. Kinematic Parameter Identification of Industrial Robot Based on Binocular Vision[J]. Laser & Optoelectronics Progress, 2023, 60(14): 1415002

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    Paper Information

    Category: Machine Vision

    Received: Jul. 11, 2022

    Accepted: Aug. 20, 2022

    Published Online: Jul. 25, 2023

    The Author Email: Shi Yanqiong (yqshi@ahjzu.edu.cn)

    DOI:10.3788/LOP222047

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