Fig 1.
Aggregated Soft OPC UA architecture.
Fig 2.
OPC UA client and server application architecture.
Fig 3.
Architecture of smoke alarm calibration digital workshop [21].
Fig 4.
Digital workshop data flow diagram [21].
Fig 5.
Workshop information model hierarchy.
Fig 6.
Information network architecture of digital twin smoke alarm calibration workshop.
Fig 7.
Information model of smoke alarm calibration workshop.
Fig 8.
Mapping between the smoke box and the information model element.
Fig 9.
Information model of smoke box.
Table 1.
Mapping of the information model of the smoke chamber.
Fig 10.
Address space management.
Fig 11.
Data interaction between digital twin model and physical equipment.
Fig 12.
Comparison between the digital twin model of the smoke chamber and the physical object.
Fig 13.
Flow chart of field application test.
Fig 14.
Production process information management system.