Digital twin on concepts, enabling technologies, and applications

The timely growth of data collection and virtual technology has led to advancements in digital twin (DT) technology, which has since become one of the primary research areas and provides enormous possibilities for various industry fields. Based on ultra-fidelity models, DT is an efficient method for realizing the merging of physical and virtual environments. Scholars investigated associated theories and modeling techniques, critical technologies for realizing continuous links and communication between physical and virtual entities, and other researchers concentrated on providing frameworks for the practical application of DT. This article aims to summarize common industrial cases to determine the present status of DT research. This paper discusses the concept of DT technology, the properties that define it, and the DT framework used in the industry. It also reviews the DT application and the findings of associated studies. Some present challenges in DT development, and potential DT prospects are discussed. Finally, we utilize the 6-degrees-of-freedom parallel robot as a case study to illustrate a future application of DT.