A closed-loop digital twin modeling method integrated with carbon footprint analysis

Abstract

Digital twin technology can effectively assist the design and development of products or systems. This paper proposes a closed-loop digital twin system consisting of a physical entity control service system, product carbon footprint analysis model, physical entity, twin data, and virtual entity. In this paper, the digital twin conceptual model is applied to the design of the upper computer and lower computer of the physical entity control service system, and the realization of physical entity control in the upper computer depends on three functions: data acquisition, data storage, and control instruction delivery. In order to ensure the independence of functions in the service system and realize multi-function simultaneous processing, this paper proposes a digital twin control service system framework based on a master–slave design pattern and event state machine. Based on the concept of low carbon design for products, this paper takes carbon footprint analysis as a specific method for physical entity environmental assessment. For the function of carbon footprint analysis, considering the information uncertainty and cost factors of complete carbon footprint analysis, this paper focuses on a simple and effective product carbon footprint analysis model, and a prototype is used as an example to verify its effectiveness.