A 5M Synchronization Mechanism for Digital Twin Shop-Floor

被引：0
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作者：
Weiran Liu
Jiangfeng Cheng
Zhiwen Wen
Xiaofu Zou
Zhaozong Wang
Hongting Liu
Fei Tao
机构：
[1] Beihang University,School of Automation Science and Electrical Engineering
[2] Xi’an Precision Machinery Research Institute,Institute of Artificial Intelligence
[3] Beihang University,Digital Twin International Research Center, International Research Institute for Multidisciplinary Science
[4] Beihang University,undefined
来源：
Chinese Journal of Mechanical Engineering | / 36卷
关键词：
Digital twin; Digital twin shop-floor; Synchronization in digital twin shop-floor; Synchronization mechanism; Satellite assembly shop-floor;
D O I：
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中图分类号：
学科分类号：
摘要：
In recent years, as a promising way to realize digital transformation, digital twin shop-floor (DTS) plays an important role in smart manufacturing. The core feature of DTS is the synchronization. How to implement and maintain the synchronization is critical for DTS. However, there is still a lack of a common definition for synchronization in DTS. Besides, a systematic synchronization mechanism for DTS is strongly needed. This paper first summarizes the definition and requirements of synchronization in DTS, to clarify the understanding of synchronization in DTS. Then, a 5M synchronization mechanism for DTS is proposed, where 5M refers to multi-system data, multi-fidelity model, multi-resource state, multi-level state, and multi-stage operation. As a bottom-up synchronization mechanism, 5M synchronization mechanism for DTS has the potential to support DTS to achieve and maintain physical-virtual state synchronization, and to realize operation synchronization of DTS. The implementation methods of 5M synchronization mechanism for DTS are also introduced. Finally, the proposed synchronization mechanism is validated in a digital twin satellite assembly shop-floor, which proves the effectiveness and feasibility of the mechanism.
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