Literacy Deep Reinforcement Learning-Based Federated Digital Twin Scheduling for the Software-Defined Factory

被引:0
作者
Ahn, Jangsu [1 ]
Yun, Seongjin [1 ]
Kwon, Jin-Woo [1 ]
Kim, Won-Tae [1 ]
机构
[1] Korea Univ Technol & Educ, Dept Comp Sci & Engn, Future Convergence Engn Major, Cheonan 31253, South Korea
关键词
industrial metaverse; federated digital twins; large language model; flexible job-shop; scheduling; the software-defined factory; MASS CUSTOMIZATION;
D O I
10.3390/electronics13224452
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
As user requirements become increasingly complex, the demand for product personalization is growing, but traditional hardware-centric production relies on fixed procedures that lack the flexibility to support diverse requirements. Although bespoke manufacturing has been introduced, it provides users with only a few standardized options, limiting its ability to meet a wide range of needs. To address this issue, a new manufacturing concept called the software-defined factory has emerged. It is an autonomous manufacturing system that provides reconfigurable manufacturing services to produce tailored products. Reinforcement learning has been suggested for flexible scheduling to satisfy user requirements. However, fixed rule-based methods struggle to accommodate conflicting needs. This study proposes a novel federated digital twin scheduling that combines large language models and deep reinforcement learning algorithms to meet diverse user requirements in the software-defined factory. The large language model-based literacy module analyzes requirements in natural language and assigns weights to digital twin attributes to achieve highly relevant KPIs, which are used to guide scheduling decisions. The deep reinforcement learning-based scheduling module optimizes scheduling by selecting the job and machine with the maximum reward. Different types of user requirements, such as reducing manufacturing costs and improving productivity, are input and evaluated by comparing the flow-shop scheduling with job-shop scheduling based on reinforcement learning. Experimental results indicate that in requirement case 1 (the manufacturing cost), the proposed method outperforms flow-shop scheduling by up to 14.9% and job-shop scheduling by 5.6%. For requirement case 2 (productivity), it exceeds the flow-shop method by up to 13.4% and the job-shop baseline by 7.2%. The results confirm that the literacy DRL scheduling proposed in this paper can handle the individual characteristics of requirements.
引用
收藏
页数:15
相关论文
共 30 条
[1]   A self-learning genetic algorithm based on reinforcement learning for flexible job-shop scheduling problem [J].
Chen, Ronghua ;
Yang, Bo ;
Li, Shi ;
Wang, Shilong .
COMPUTERS & INDUSTRIAL ENGINEERING, 2020, 149
[2]   Sustainability and Industry 4.0: Definition of a Set of Key Performance Indicators for Manufacturing Companies [J].
Contini, Giuditta ;
Peruzzini, Margherita .
SUSTAINABILITY, 2022, 14 (17)
[3]   The flexible job shop scheduling problem: A review [J].
Dauzere-Peres, Stephane ;
Ding, Junwen ;
Shen, Liji ;
Tamssaouet, Karim .
EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 2024, 314 (02) :409-432
[4]  
Devlin J, 2019, Arxiv, DOI [arXiv:1810.04805, DOI 10.48550/ARXIV.1810.04805]
[5]   Embodied intelligence in manufacturing: leveraging large language models for autonomous industrial robotics [J].
Fan, Haolin ;
Liu, Xuan ;
Fuh, Jerry Ying Hsi ;
Lu, Wen Feng ;
Li, Bingbing .
JOURNAL OF INTELLIGENT MANUFACTURING, 2025, 36 (02) :1141-1157
[6]   Digital-Twin-Based Job Shop Scheduling Toward Smart Manufacturing [J].
Fang, Yilin ;
Peng, Chao ;
Lou, Ping ;
Zhou, Zude ;
Hu, Jianmin ;
Yan, Junwei .
IEEE TRANSACTIONS ON INDUSTRIAL INFORMATICS, 2019, 15 (12) :6425-6435
[7]   Increasing Throughput for a Class of Two-Machine Robotic Cells Served by a Multifunction Robot [J].
Foumani, Mehdi ;
Gunawan, Indra ;
Smith-Miles, Kate .
IEEE TRANSACTIONS ON AUTOMATION SCIENCE AND ENGINEERING, 2017, 14 (02) :1150-1159
[8]   An LLM-based approach for enabling seamless Human-Robot collaboration in assembly [J].
Gkournelos, Christos ;
Konstantinou, Christos ;
Makris, Sotiris .
CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2024, 73 (01) :9-12
[9]  
Gu Y., 2024, P 12 INT C LEARN REP
[10]  
Han S, 2016, Arxiv, DOI arXiv:1510.00149