Digital Twin shop-floor: A Complex System-oriented Construction Method and Operation Mechanism

Digital twin (DT) provides an effective way for the cyber-physical integration towards smart manufacturing. As manufacturing enterprises seek manufacturing collaboration, the original simple system-level shop-floor problems are gradually escalating to complex system-level shop-floor problems. Complex system-oriented DT will generate more elements and precise production control, through the two-way interaction between the cyber and physical layer. As for the problem about how to realize the complex system-oriented DT, this paper specifies and highlights a construction method for complex system-oriented DT from the perspective of cyber-physical shop-floor and to investigate their operational mechanisms. Finally, a satellite AIT(Assembly, Integration and Test) shop-floor is chosen as the case to validate the feasibility of proposed framework, methods and mechanisms.