A Digital Twin-Based Intelligent Robotic Measurement System for Freeform Surface Parts

Tang, Yongpeng; Wang, Yaonan; Tan, Haoran; Peng, Weixing; Xie, He; Liu, Xuebing

doi:10.1109/tim.2023.3261933

IEEE Trans. Instrum. Meas.

2023

DOI: 10.1109/tim.2023.3261933

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A Digital Twin-Based Intelligent Robotic Measurement System for Freeform Surface Parts

Yongpeng Tang

Yaonan Wang

Haoran Tan

et al.

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Cited by 7 publications

(1 citation statement)

References 38 publications

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“…Several robot-led applications have been well developed including welding, machining, and assembly. [1][2][3] 3D robot measurement systems, which integrate 3D cameras, have gained popularity over coordinate measuring machines (CMMs) in workpiece measurement [4,5] and vision-guiding robot processing [6] because of its high efficiency and cost-effectiveness. [7] The working process of a 3D robot measurement system is illustrated in Figure 1.…”

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confidence: 99%

Simple and High‐Precision Hand–Eye Calibration for 3D Robot Measurement Systems

Wu,

Zang,

Bai

et al. 2023

Advanced Intelligent Systems

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Three dimensional (3D) robot measurement systems, with binocular planar structured light cameras (3D cameras) installed at the terminal flange of robots, are widely used to measure complete workpieces by stitching point clouds obtained from various sampled poses. To ensure accurate stitching, hand–eye calibration is necessary. However, 3D cameras often demonstrate low precision in measuring jumping edges and vertices, resulting in challenges when selecting appropriate calibrators and calibration methods for hand–eye calibration. We propose a simple and high‐precision hand–eye calibration method for 3D robot measurement systems. Initially, a single sphere is utilized as the calibrator, and its poses are observed using specific robotic motions. Subsequently, the hand–eye calibration problem is formulated as a well‐known equation, , relying solely on the high‐precision relative pose of the robot. Finally, a novel simultaneous solution for and the corresponding closed‐form initial solution are introduced. Simulations and experiments confirm that the proposed method exhibits high noise resistance and achieves high‐precision calibration, even with a limited calibration data quantity. Compared with traditional methods, the fitting error of the proposed method can be reduced from over 0.9 mm to less than 0.6 mm.

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mentioning

confidence: 99%

Simple and High‐Precision Hand–Eye Calibration for 3D Robot Measurement Systems

Wu,

Zang,

Bai

et al. 2023

Advanced Intelligent Systems

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Application and research trend of digital twin in measurement technology

Zhao,

Zhang,

Wang

et al. 2024

Meas. Sci. Technol.

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One of the key critical technologies in the digital revolution of measurement technology is digital twin. The literature now in publication indicates that the advancement and use of digital twin technology will raise the bar for improvement in the measuring sector. The current literature on the creation and use of digital twin technology is reviewed first, followed by a list of recognized definitions and a summary of the three main categories of digital twin models for easy reference. The main drawbacks of conventional measurement technology in the application process are enumerated here: direct measurement is challenging, measuring multiple parameters at once is challenging, sensors' influence cannot be disregarded, and the accuracy of measurement results is not satisfactory. To address these issues, this review outlines the benefits and potential uses of digital twin technology in measurement, as well as a summary of six significant contributions. Strong application and robustness, the ability to visualize the process of changing a measurement parameter, simultaneous measurement of many parameters, cheap measurement costs, data security, integrity, high availability, and intelligent measurement are only a few of these features. It is explored where digital twin research in measurement technology is headed in the future. A new digital solution and path for measuring technology development are offered by the digital twin and virtual sensor simulation methods.

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A Two-Stage Trajectory Planning Method for Online Robotic Quality Measurement

Li,

Liu,

Wang

et al. 2024

IEEE Sensors J.

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A Digital Twin-Based Intelligent Robotic Measurement System for Freeform Surface Parts

Cited by 7 publications

References 38 publications

Simple and High‐Precision Hand–Eye Calibration for 3D Robot Measurement Systems

Simple and High‐Precision Hand–Eye Calibration for 3D Robot Measurement Systems

Application and research trend of digital twin in measurement technology

A Two-Stage Trajectory Planning Method for Online Robotic Quality Measurement

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