Web-Based Digital Twin
Standardized external interfaces : Digital twins must be able to provide their data and functions to each other and to other entities . To enable the exchange , a network connection must be provided and communication must be based on vendorindependent interface standards .
Standardized internal interfaces : Internal communication within a composite digital twin must also be based on standardized interfaces . Since the individual elements come from different domains , their need a unifying interface .
Quality of services : The digital twin does not have any benefit if it cannot provide sufficient quality of service . Especially in the industrial environment , the reliability of the services , for example in terms of real-time requirements , stability under load , or accuracy , are crucial factors that the digital twin must guarantee .
WEB-BASED DIGITAL TWIN
In the following , we want to discuss the concept of a web-based digital twin . For the generation of the web-based digital twin we used a methodology with four steps : requirements analysis , system design , implementation , and verification . The requirements analysis is used to determine the requirements on a digital twin in general and a web-based digital twin in particular . We then used these requirements in the system design to determine suitable technologies for implementing a web-based digital twin . In the third step , the prototypical implementation serves to test the viability of the final model . The verification of the requirements in the last step verifies the suitability of the generated web-based digital twin .
Concept of a Web-Based Digital Twin
Using the described requirements and the methodological approach , we have developed a distributed web-based digital twin . Fig . 4 represents the components relevant during our design . The web-based digital twin represents an asset in its current and past state throughout its lifecycle . The state is recorded in the form of data and stored in databases . To obtain an estimate of a possible state in the future , the digital twin also represents behavior using models and simulations . Since on the one hand the simulations should run mainly autonomously in the background and on the other hand several simulation types interact with each other to represent the entire system , a
Asset DTs
Simulations
Interfaces
SDM
Models
Data
Fig . 4 : Components of a web-based digital twin .
IIC Journal of Innovation - 7 -