Information fusion and systematic logic library-generation methods for self-configuration of autonomous digital twin

Kyu Tae Park, Sang Ho Lee and Sang Do Noh ()
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Kyu Tae Park: Sungkyunkwan University
Sang Ho Lee: Sungkyunkwan University
Sang Do Noh: Sungkyunkwan University

Journal of Intelligent Manufacturing, 2022, vol. 33, issue 8, No 14, 2409-2439

Abstract: Abstract Self-configuration is the preparation required to facilitate smart-manufacturing (SM) with the inputs derived without user intervention for engineering applications. Thus, it is vital for achieving the highest maturity level of SM technologies. In context, digital twin (DT) is an advanced virtual factory with simulation as its core technical functionality. However, the requirement of several inputs limits the implementation of DT on a physical asset without user intervention. Moreover, surpassing this limitation requires extraction methods for deriving the necessary inputs for DT application. Therefore, this study proposes information fusion and systematic logic library (SLL)-generation methods to facilitate the self-configuration of an autonomous DT. The information fusion aggregates and extracts the information elements required for DT application from heterogeneous information sources. In addition, the SLL generation method created the SLL required for reflecting the functional units of agents within the physical asset. Both methods were proposed from available SM standards such as ISA-95, automation markup language, and OPC unified architecture. Furthermore, an autonomous DT-supporting framework was designed by analyzing the relationship between asset description and SM standards, which facilitated the artificial intelligence-based extraction of the asset description object and SLL. Additionally, the core functional engines within this framework were designed using machine learning and process-mining techniques. Consequently, the proposed methods reduced the input pre-processing time required for constructing and synchronizing an autonomous DT to aid the application of autonomous DT on the physical asset without user intervention.

Keywords: Asset-administration shell; Artificial intelligence; Autonomous digital twin; Smart-manufacturing standard; Information fusion; Virtual representation (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10845-021-01795-y

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