1. ® OGC Sensor Web Enablement Dr Andrew Woolf STFC e-Science Centre Rutherford Appleton Laboratory, UK

2. OGC ® Outline SWE overview: RM-ODP Enterprise viewpoint Information viewpoint Computational viewpoint Engineering viewpoint Technology viewpoint

3. OGC ® SWE overview: RM-ODP ISO/IEC 10746 ‘Reference Model for Open Distributed Processing’ System Enterprise viewpoint purpose, scope and policies for a system Information viewpoint semantics of information and information processing Computational viewpoint functional decomposition into interfaces Engineering viewpoint mechanisms and functions required for distribution Technology viewpoint technology choices 3Copyright © 2009, Open Geospatial Consortium, Inc

4. OGC ® Enterprise viewpoint 4Copyright © 2009, Open Geospatial Consortium, Inc

5. OGC ® (N)RT air quality monitoring in UK 5Copyright © 2009, Open Geospatial Consortium, Inc

6. OGC ® Sensor network Would like: –simplified access easy to configure & integrate in applications –standardised interface no more stovepipes for each new sensor! remote, in-situ, fixed, mobile OGC Sensor Web Enablement (SWE) –http://www.opengeospatial.org/ogc/markets-technologies/swehttp://www.opengeospatial.org/ogc/markets-technologies/swe 6Copyright © 2009, Open Geospatial Consortium, Inc

7. OGC ® Information viewpoint ISO (/DIS!) 19156 ‘Observations and Measurements’ –http://www.opengeospatial.org/standards/omhttp://www.opengeospatial.org/standards/om SensorML –http://www.opengeospatial.org/standards/sensormlhttp://www.opengeospatial.org/standards/sensorml –http://vast.uah.edu/index.php?option=com_content&view=article&id =14&Itemid=52/http://vast.uah.edu/index.php?option=com_content&view=article&id =14&Itemid=52/ TransducerML –http://www.opengeospatial.org/standards/tmlhttp://www.opengeospatial.org/standards/tml 7Copyright © 2009, Open Geospatial Consortium, Inc

8. OGC ® ‘Observations and Measurements’ An Observation is an action whose result is an estimate of the value of some Property of the Feature-of-interest, obtained using a specified Procedure 8Copyright © 2009, Open Geospatial Consortium, Inc

9. OGC ® Example: marine observation O&M Feature-of-interest observed Property Procedure result Marine observation Atlantic cruise track temperature thermosalinograph 19.2°C 9Copyright © 2009, Open Geospatial Consortium, Inc

10. OGC ® Example: air quality O&M Feature-of-interest observed Property Procedure result Air quality Urban monitoring station CO 2 FTIR 450 ppm Image courtesy http://www.atmosfera.unam.mx http://www.atmosfera.unam.mx 10Copyright © 2009, Open Geospatial Consortium, Inc

11. OGC ® Information viewpoint ctd. SensorMLTransducerML response characteristics of transducer sensor data streams 11Copyright © 2009, Open Geospatial Consortium, Inc

12. OGC ® Computational viewpoint Sensor Observation Service –http://www.opengeospatial.org/standards/soshttp://www.opengeospatial.org/standards/sos Sensor Planning Service –http://www.opengeospatial.org/standards/spshttp://www.opengeospatial.org/standards/sps 12Copyright © 2009, Open Geospatial Consortium, Inc

13. OGC ® Sensor Observation Service For querying sensors ‘Observation Offering’ –collection of related sensor observations Allows queries against O&M model –GetCapabilities → service metadata (incl. Observation offerings) –DescribeSensor → sensor metadata (Procedure) –GetObservation → Observation (collection) –GetResult → result only –GetFeatureOfInterest → observed Feature-of-interest 13Copyright © 2009, Open Geospatial Consortium, Inc

14. OGC ® Sensor Observation Service GetObservation –offering –eventTime: time period(s) of observations –procedure: which sensor system(s) –observedProperty: observed phenomenon –featureOfInterest: observed feature –result: for filtering results 14Copyright © 2009, Open Geospatial Consortium, Inc

15. OGC ® Sensor Observation Service DescribeSensor –TransducerML for describing information about transducers and transducer systems –SensorML for defining processes and processing components associated with the measurement and post-measurement transformation of observations 15Copyright © 2009, Open Geospatial Consortium, Inc

16. OGC ® Sensor Planning Service For tasking sensors –GetCapabilities → service metadata –DescribeTasking → parameters required for a Submit operation –GetFeasibility → feasibility of a tasking request –Submit → submites request –GetStatus → current status of requested task –Update → update previously submitted task –Cancel → cancel previously submitted task –DescribeResultAccess → how/where data can be accessed (e.g. through SOS) Being used by ESA in the Heterogeneous Missions Accessibility (HMA) project 16Copyright © 2009, Open Geospatial Consortium, Inc

17. OGC ® Engineering viewopint: SOS Concept of Operations 17Copyright © 2009, Open Geospatial Consortium, Inc

18. OGC ® Technology viewpoint http://www.ogcnetwork.net/SWE_Software 52 o North –http://52north.org/swehttp://52north.org/swe EU Sensors Anywhere (SANY) IP –http://sany-ip.eu/book_page/cascading_sos_0http://sany-ip.eu/book_page/cascading_sos_0 deegree –https://wiki.deegree.org/deegreeWiki/deegree3/SensorObservationS ervicehttps://wiki.deegree.org/deegreeWiki/deegree3/SensorObservationS ervice 18Copyright © 2009, Open Geospatial Consortium, Inc

19. OGC ® http://data.stccmop.org/ws/sos.py? request=GetObservation& offering=am169& observedProperty=http://marinemetadata. org/cf#sea_water_salinity http://data.stccmop.org/ws/sos.py? request=GetObservation& offering=am169& observedProperty=http://marinemetadata. org/cf#sea_water_salinity&eventTime=200 8-09-20T00:00:00/2008-09-20T00:05:00 E.g. Marine observing network 19Copyright © 2009, Open Geospatial Consortium, Inc