Transparent Digital Twin for Output Control Using Belief Rule Base

A transparent digital twin (DT) is designed for output control using the belief rule base (BRB), namely, DT-BRB. The goal of the transparent DT-BRB is not only to model the complex relationships between the system inputs and output but also to conduct output control by identifying and optimizing the...

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Bibliographic Details
Published in:IEEE transactions on cybernetics 2022-10, Vol.52 (10), p.10364-10378
Main Authors: Chang, Leilei, Zhang, Limao, Fu, Chao, Chen, Yu-Wang
Format: Article
Language:English
Subjects:
Analytical models
Belief rule base (BRB)
building tilt rate (BTR)
Data models
Digital twin
Digital twins
Iterative methods
Mathematical models
Optimization
output control
Parameter identification
Testing
transparent digital twin (DT)
Tunnel construction
Uncertainty
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Summary:A transparent digital twin (DT) is designed for output control using the belief rule base (BRB), namely, DT-BRB. The goal of the transparent DT-BRB is not only to model the complex relationships between the system inputs and output but also to conduct output control by identifying and optimizing the key parameters in the model inputs. The proposed DT-BRB approach is composed of three major steps. First, BRB is adopted to model the relationships between the inputs and output of the physical system. Second, an analytical procedure is proposed to identify only the key parameters in the system inputs with the highest contribution to the output. Being consistent with the inferencing, integration, and unification procedures of BRB, there are also three parts in the contribution calculation in this step. Finally, the data-driven optimization is performed to control the system output. A practical case study on the Wuhan Metro System is conducted for reducing the building tilt rate (BTR) in tunnel construction. By comparing the results following different standards, the 80% contribution standard is proved to have the highest marginal contribution that identifies only 43.5% parameters as the key parameters but can reduce the BTR by 73.73%. Moreover, it is also observed that the proposed DT-BRB approach is so effective that iterative optimizations are not necessarily needed.
ISSN:2168-2267
2168-2275
DOI:10.1109/TCYB.2021.3063285