Systems Engineering and Electronics ›› 2020, Vol. 42 ›› Issue (12): 2779-2786.doi: 10.3969/j.issn.1001-506X.2020.12.14

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Dynamic data driven modeling and simulation method for digital twin

Peng WANG(), Mei YANG*(), Jiancheng ZHU(), Rusheng JU(), Ge LI()   

  1. College of Systems Engineering, National University of Defense Technology, Changsha 410073, China
  • Received:2020-02-27 Online:2020-12-01 Published:2020-11-27
  • Contact: Mei YANG E-mail:wangpeng_nudt@nudt.edu.cn;yangmei@nudt.edu.cn;zhujiancheng@nudt.edu.cn;jrscy@sina.com;geli@nudt.edu.cn

Abstract:

Cyber-physical system (CPS) is a comprehensive technical system that supports the deep integration of information and industrialization. The classical modeling and simulation method fail to satisfy the application requirements of the CPS. Therefore, a digital twin oriented dynamic data driven modeling and simulation method is proposed, and a random finite set (RFS) is used to build the data driven simulation model of physical entities and sensors of CPS. The Bayesian inference based prediction and update method is proposed to run the CPS model. The proposed method can implement the virtual and real combined simulation running for digital twin very well. It can also enable the data driven model running, and improve the accuracy and credibility of simulation results by using the data from the real space. Finally, the feasibility and validity of the proposed method is certified by using the operational application cases of the surface ships.

Key words: cyber-physical system (CPS), dynamic data driven simulation, random finite set (RFS), digital twin

CLC Number: 

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