Andrea Schröder Germany Session 3 – Block 2 – Update Barcelona May 2003 GbR mbH © 1 Web-based supervisory control and data acquisition Andrea Schröder (FGH), Michael Schwan (FGH), David Leal (CAESAR Systems), Sönke Michelsen (E.ON Netz GmbH), Harald Braun (Integrierte Informationssysteme GmbH), Tor Sannes (Powel ASA)
Andrea Schröder Germany Session 3 – Block 2 – Update Barcelona May 2003 GbR mbH © 2 Motivation State of the art –Proprietary SCADA technologies –Inefficient handling of structured numeric data on the Web Future –Low-cost, generic architecture for web based SCADA applications –New Web data type for bulk numeric SCADA data
Andrea Schröder Germany Session 3 – Block 2 – Update Barcelona May 2003 GbR mbH © 3 Structured semantic data block Extract and download subsets variables positions states/times semantics Gigabytes of structured data
Andrea Schröder Germany Session 3 – Block 2 – Update Barcelona May 2003 GbR mbH © 4 Summary Generic ontology for the engineering domain is finally available on the Web Application specific ontologies for arbitrary SCADA applications can be build on top Semantic interface grants access to data of the Web data-type and ensures an efficient handling of bulk numeric data Substitution of proprietary SCADA systems