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Digital Twin Technology of Human-Machine Integration in Cross-Belt Sorting System

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The Chinese express delivery industry processes nearly 110 billion items in 2022,averaging an annual growth rate of 200%.Among the various types of sorting systems used for handling express items,cross-belt sorting sys-tems stand out as the most crucial.However,despite their high degree of automation,the workload for operators has intensified owing to the surging volume of express items.In the era of Industry 5.0,it is imperative to adopt new technologies that not only enhance worker welfare but also improve the efficiency of cross-belt systems.Striking a balance between efficiency in handling express items and operator well-being is challenging.Digital twin technol-ogy offers a promising solution in this respect.A realization method of a human-machine integrated digital twin is proposed in this study,enabling the interaction of biological human bodies,virtual human bodies,virtual equip-ment,and logistics equipment in a closed loop,thus setting an operating framework.Key technologies in the pro-posed framework include a collection of heterogeneous data from multiple sources,construction of the relationship between operator fatigue and operation efficiency based on physiological measurements,virtual model construction,and an online optimization module based on real-time simulation.The feasibility of the proposed method was veri-fied in an express distribution center.

Industry 5.0Cross-belt sorting systemHuman-machine integratedDigital twinOnline optimization

Yanbo Qu、Ning Zhao、Haojue Zhang

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School of Mechanical Engineering,University of Science and Technology Beijing,Beijing 100083,China

Institute of Microelectronics of the Chinese Academy of Sciences,Beijing 100029,China

Wayzim Technology Co.,Ltd,Wuxi 214108,China

Business School,Beijing Technology and Business University,Beijing 100048,China

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国家自然科学基金国家重点基础研究发展计划(973计划)

520750362022YFC3302204

2024

中国机械工程学报
中国机械工程学会

中国机械工程学报

CSTPCD
影响因子:0.765
ISSN:1000-9345
年,卷(期):2024.37(2)