Production‐Logistics Synchronisation Mechanism and Method of Cellular Assembly Systems Based on Digital‐Twin and Out‐of‐Order Execution

ABSTRACT In the realm of customised production modes, where dynamic disturbances are frequent, synchronised operations between production and logistics in cellular assembly systems play a pivotal role in swiftly responding to rapidly evolving personalised demands. The primary challenge lies in achieving efficient synchronisation of production and logistics amidst intricate operational relationships. This study proposes a production‐logistics synchronisation mechanism and method of cellular assembly systems based on digital‐twins and Out‐of‐Order execution. This mechanism enables real‐time monitoring of operational processes and robust production and logistics operations, by dynamically adjusting the order of instructions completion based on the executability status and priority of the production and logistics instructions. Consequently, the sequence of job instructions is optimised. Finally, the effectiveness of this approach is substantiated through experiments, establishing it as a viable solution for synchronised production and logistics operations in cellular assembly systems.