[1]XIE Mingyang,WU Wei,XU Chengyong,et al.Visual servoing-based adaptive impedance control technology for collaborative robots[J].CAAI Transactions on Intelligent Systems,2025,20(6):1474-1482.[doi:10.11992/tis.202504008]
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CAAI Transactions on Intelligent Systems[ISSN 1673-4785/CN 23-1538/TP] Volume:
20
Number of periods:
2025 6
Page number:
1474-1482
Column:
学术论文—机器人
Public date:
2025-11-05
- Title:
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Visual servoing-based adaptive impedance control technology for collaborative robots
- Author(s):
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XIE Mingyang; WU Wei; XU Chengyong; QU Qiang
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College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 211106, China
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- Keywords:
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collaborative robot; robot grasping; target detection; compliant manipulation; deep learning; impedance control; optimization of capture posture; visual servo
- CLC:
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TP241
- DOI:
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10.11992/tis.202504008
- Abstract:
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When operated in human–robot coexistent unstructured environments, collaborative robots face various challenges, such as low target recognition accuracy, suboptimal grasping poses, and difficulties in achieving compliant manipulation under dynamic unknown scenarios. To address these issues, this study proposed a vision servoing–based adaptive impedance control technique. The proposed method enabled compliant grasping of objects with varying stiffness characteristics and geometric configurations by the robot. First, an improved target detection algorithm based on the ResNet (residual network) was developed to generate an optimal capture prediction frame by inputting the RGBD (red-green-blue-depth) image of the captured target. Second, an adaptive impedance control strategy was proposed for the robot end effector, and the impedance parameters were adaptively adjusted using fuzzy control. Finally, a fuzzy adaptive impedance control system based on visual servoing was constructed, and experiments on object recognition and compliant grasping were conducted. Results showed that the proposed method enhanced the generalization capability and success rate of target recognition in grasping tasks and considerably improved manipulation compliance. Compared with existing adaptive impedance control strategies, the proposed method achieved 66.3% and 45.9% improvements in compliant metrics.