Design of Manufacturing Equipment Digital Twin Interworking Framework Based on REST API for Smart Factory

A digital twin, which digitizes facilities within factories and implements them in virtual space, is a useful technology for monitoring and analyzing the performance and status of manufacturing equipment and systems, and the quality of products in smart factories. To implement the digital twin, synchronization between a real object and a virtual object is required. In this paper, we design a REST API-based interface framework for real-virtual object linkage of manufacturing equipment required in the digital twin for smart factories. The proposed framework exchanges information with the virtual factory in connection with the existing automation system.