Discovery Service for Industry 4.0 based on Property Value Statements

The German initiative "Industrie 4.0" has introduced various new concepts, e.g., Asset Administration Shell (AAS), in the industrial automation which led to the increase of the available information in the network. Retrieving the endpoints where the data is located in the network became an essential task in order to establish an automated information exchange system. Various working groups have been formed to standardize the AAS structure. In this work, we propose a discovery server concept for asset properties using the standardized AAS. We reinforce the presented concept with a prototype implementation that uses queries to retrieve information based on the property value statement model specified in DIN SPEC 92000.