1. C systems AESAR Semantic web technologies, Luxembourg, 22 nd and 23 rd November 2000 Slide no. 1 Framework 5 project proposal Web access to real time and numeric data (Web-SCADA) Contact: David Leal, CAESAR Systems Limited david@cedarlon.demon.co.uk The project will develop a flexible Internet based solution to the sharing and exchange of system monitoring and control data The project will support access to:  real time information about current system status; and  historic information over any time scale - minutes, hours, days.

2. C systems AESAR Semantic web technologies, Luxembourg, 22 nd and 23 rd November 2000 Slide no. 2 Technical approach formal information model –based upon EPISTLE Core Model XML representation –use of MathML and EPISTLE dictionary DTD referenced from XML stored and accessed using HDF 5 standard semantics - small amounts of unstructured data: data structures - gigabytes in binary arrays:

3. C systems AESAR Semantic web technologies, Luxembourg, 22 nd and 23 rd November 2000 Slide no. 3 Applications  a flood warning system based upon measurements of rainfall and river flows  the planning, control and metering of a distributed electrical generation system with many small hydro and wind producers  the operation of a generator-consumer 'balance-group' within an electric power market  a system for domestic market access and energy control, allowing on-line household metering  a condition based maintenance system, based upon on-line condition monitoring of components in electrical networks and production sites environment: system control: energy market: maintenance:

4. C systems AESAR Semantic web technologies, Luxembourg, 22 nd and 23 rd November 2000 Slide no. 4 Standards and related work EPISTLE Core model - ISO 15926-2 and ISO 10303-221 –information modelling approach also used for Life Cycle Assessment (ISO 14040 series) –realised in XML using an extension to the MathML DTD STEP-NRF (Neutral Results Format) –developed by ESA for test rig monitoring –integrated with MathML and STEP part 50 (Mathematical functions) HDF5 (portable binary format) –developed by NCSA in USA –widely used for test data and simulation results IEC 61970, Energy Management System -API –harmonisation with OMG DAIS (Data Acquisition for Industrial Systems)