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이동타겟 추적을 위한 데이터이동법을 이용한 로봇비젼 제어기법 개발

Development of Robot’s Vision Control Scheme Using the Data Moving Method for the Tracking of Moving Target

Journal of the Korean Society for Precision Engineering 2018;35(7):669-679.
Published online: July 1, 2018

1 조선대학교 대학원 기계공학과

2 조선대학교 기계공학과

1 Department of Mechanical Engineering, Graduate School, Chosun University

2 Department of Mechanical Engineering, Chosun University

#E-mail: wsjang@chosun.ac.kr, TEL: +82-62-230-7212
• Received: July 24, 2017   • Revised: January 17, 2018   • Accepted: March 6, 2018

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Cloud Computing Based on Big Data‐Driven Robot Walking Route and Real‐Time Positioning Intelligent Determination
    Yunlong Yi, Ying Guan, Xiangbin Meng, Kapil Sharma
    Wireless Communications and Mobile Computing.2022;[Epub]     CrossRef

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Development of Robot’s Vision Control Scheme Using the Data Moving Method for the Tracking of Moving Target
J. Korean Soc. Precis. Eng.. 2018;35(7):669-679.   Published online July 1, 2018
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Development of Robot’s Vision Control Scheme Using the Data Moving Method for the Tracking of Moving Target
Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Link parameters and link frame assignments of 4 axis robot
Fig. 2 Robot’s movement
Fig. 3 Camera rotation and Euler parameters
Fig. 4 Data processing method of the batch scheme
Fig. 5 Robot’s vision control scheme of the batch method
Fig. 6 Data processing method of the data moving scheme
Fig. 7 Robot’s vision control scheme of the data moving method
Fig. 8 Experimental set-up
Fig. 9 Experimental schematic diagram
Fig. 10 Test model used for experiment
Fig. 11 Robot’s trajectory
Fig. 12 Errors according to the variation of robot moving points in the data moving scheme
Fig. 13 For camera 1, comparison of the actual and estimated values of vision system model in the moving target tracking stage based on the batch scheme (unit: pixel)
Fig. 14 For camera 1, comparison of the actual and estimated values of vision system model in the moving target tracking stage based on the data moving scheme (unit: pixel)
Fig. 15 Comparison of the actual and estimated values of robot joint values using the batch scheme
Fig. 16 The r.m.s errors for 20 moving targets using the batch scheme (unit: mm)
Fig. 17 Comparison of the actual and estimated values of robot joint values using the data moving scheme
Fig. 18 The r.m.s. errors for 20 moving targets using the data moving scheme (unit: mm)
Development of Robot’s Vision Control Scheme Using the Data Moving Method for the Tracking of Moving Target

Link parameter of 4 axis robot

Axis α i-1 α i-2 di θi
1 0 0 387 θ 1
2 0 400 0 θ 2
3 180 250 d 3 0
4 -180 0 0 θ 4

The r.m.s errors of vision system model based on the batch scheme

(unit: pixel)

Moving
point
Camera 1 Camera 2 Camera 3
m 0.2955 0.1917 0.4380
1 0.4442 0.2379 0.4356
2 0.3134 0.2334 0.4222
3 0.4133 0.2728 0.6519
4 0.5285 0.3165 0.3505
5 0.6393 0.2237 0.5056
6 0.7112 0.4918 0.6481
7 0.4714 0.2540 0.7343
8 0.5490 0.4921 0.7999
9 0.5289 0.5195 0.8350
10 0.7971 0.3609 0.6361
11 0.6728 0.3734 0.6806
12 0.7734 0.5917 0.9920
13 0.7578 0.5078 1.1052
14 1.0120 0.6342 1.0681
15 0.8818 0.7915 1.0453
16 0.9595 0.5229 1.3602
17 1.0588 0.6799 1.2660
18 1.1299 0.8771 1.4088
19 1.1679 1.0561 1.5615
Average 0.7053 0.4814 0.8472

The r.m.s errors of vision system model based on the data moving scheme

(unit: pixel)

Moving
point
Camera 1 Camera 2 Camera 3
m 0.1454 0.1766 0.1599
1 0.2302 0.0908 0.1939
2 0.0791 0.0625 0.0821
3 0.1335 0.1415 0.3662
4 0.2040 0.1711 0.0415
5 0.2350 0.0726 0.1005
6 0.2831 0.1566 0.1295
7 0.1634 0.0947 0.0991
8 0.1127 0.1932 0.1548
9 0.1515 0.1522 0.1520
10 0.2856 0.0962 0.0939
11 0.1951 0.0911 0.0576
12 0.1931 0.2198 0.2325
13 0.1974 0.1021 0.2107
14 0.2513 0.0487 0.0163
15 0.1711 0.1788 0.1140
16 0.1873 0.1186 0.2365
17 0.2096 0.1707 0.0730
18 0.2087 0.1645 0.0728
19 0.2062 0.1448 0.0787
Average 0.1922 0.1324 0.1378

The r.m.s errors for 20 moving targets using the batch scheme

(unit: mm)

Target
number (k*)
r.m.s
error
Target
number (k*)
r.m.s
error
1 0.2224 11 0.4516
2 0.2085 12 0.7139
3 0.1459 13 0.5599
4 0.1300 14 0.5029
5 0.2505 15 0.5933
6 0.3301 16 0.7014
7 0.5213 17 0.6575
8 0.5420 18 0.7750
9 0.3857 19 0.8664
10 0.4044 20 0.8062

The r.m.s errors for 20 moving targets using the data moving scheme

(unit: mm)

Target
number (k*)
r.m.s
error
Target
number (k*)
r.m.s
error
1 0.0873 11 0.0602
2 0.1043 12 0.3573
3 0.0540 13 0.0500
4 0.1534 14 0.2261
5 0.1603 15 0.0784
6 0.1986 16 0.1695
7 0.3535 17 0.1050
8 0.1351 18 0.1360
9 0.2251 19 0.1145
10 0.2016 20 0.0666
Table 1 Link parameter of 4 axis robot
Table 2 The r.m.s errors of vision system model based on the batch scheme (unit: pixel)
Table 3 The r.m.s errors of vision system model based on the data moving scheme (unit: pixel)
Table 4 The r.m.s errors for 20 moving targets using the batch scheme (unit: mm)
Table 5 The r.m.s errors for 20 moving targets using the data moving scheme (unit: mm)