Applying model-based system architecture process method for a human-robot digital twin system

With the development of a new generation of information technology, digital twin generation has become a research trend. However, as a complex system oriented to the product life cycle, there are some challenges for its achievement. As a widely accepted and applied methodology, most industrial fields agreed with that model-based system engineering (MBSE) can improve design quality, development efficiency and avoid risks in the design phase. However, there is few work to discuss the connection between them. Therefore, we explore to apply the model-base system architecture process to implement digital twin system, and adjust some detailed design process for adapting to the characteristics of DT. Finally, taking a human-robot system as an example to illustrate the process of building digital twin system architecture with SysML, moreover, architectural trade-off analysis method (ATAM) demonstrate the applicability of the MBSE-based method in digital twin system designing. This paper presents digital twin system development process based on MBSE based method, and provide a reference for other researchers.