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GeoCENS OGC Standards and Sensor Web Enablement presented at GeoCENS Banff September 2010 workshop by George Percivall


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This GeoCENS OGC Standards and Sensor Web Enablement was presented by George Percivall at the GeoCENS workshop in Banff September 23, 2010

This GeoCENS OGC Standards and Sensor Web Enablement was presented by George Percivall at the GeoCENS workshop in Banff September 23, 2010

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  • DIB Applications - External Tasking, Mission Management, Distributed Sensor Planner Sensor Planning Service Provides a standard interface for planning and tasking sensors. SPS interface operations include: DescribeCollectionRequest() GetFeasibility() SubmitRequest() UpdateRequest() CancelRequest() GetStatus() ACTM – Airborne Common Tasking Message Created to reflect the tasking information used by all DoD and IC platforms. Provided as input to OWS-3 in support of the SPS maturation. Sensor Alert Service Under development in an OGC Interoperability Experiment
  • SWE web services: Sensor Observation Service – Access to sensor or simulated data Sensor Planning Service – Sensor System or Simulator Control Interface Sensor Alert Service – Subscribe to specific alerts usually derived from sensor/simulator data Catalog Service – Discover other services, sensors, providers and data sets SWE Steps: Services are first registered in one or several catalogs also accessible through a standard interface. Client can discover services, provider, sensors and datasets by using the catalog Client can then access data from SOS, control sensors and simulators using SPS and receive alerts from SAS
  • 8 October 2010 Beware: these are simply hilights. The illustration is not really correct for the baseline, and possibly too simple for final pilot!
  • This slide shows an OGC system framework being used for Satellite and Field Integration. We have tested an interoperability connection to Rain Gauge SOS from GIS.FCU Taiwan. The GSMaP (Global Rainfall Map) which is a near real-time hourly rainfall map will be accessed via WMS connection from GEO Grid, AIST, Japan. The validation process will be done by WPS.
  • As geographic content (geodata) and services become more widely available in digital form over ubiquitous networks, data becomes easier to distribute, share, copy and alter. While this is generally a good thing, many organizations involved in the production and trading of geodata find the need to protect their Intellectual Property (IP) assets through the digital distribution value chain. Organizations want to specify, manage, control and track geodata distribution within secure, open and trusted environments. A system of operating agreements and interoperable technologies are needed to enable broader distribution and use of geodata while protecting the rights of producers and users. In or e-commerce models for dissemination and use of Intellectual Property (IP) assets, geodata are treated as commodities to be priced, ordered, traded and licensed. Direct monetary reward, however, is often not the motivation or is only secondary behind the desire for more rigorous control of IP assets. Harlan Onsrud of the GeoData Alliance argues that the incentive structures implicit in “library systems” are an appropriate model for motivating data producers, collectors and traders to document, share and otherwise disseminate their geodata. Onsrud observes that the library system is a “chaordic” framework of seemingly ad hoc agreements among stakeholders that strikes a balance supporting “…strong public goods, access and equity principles while fully protecting the intellectual property rights of authors and publishers.”
  • Transcript

    • 1. OGC Standards and Sensor Web Enablement Presentation to GeoCENS Platform Demonstration and User Needs Worshop George Percivall OGC Chief Architect 23 September 2010 Copyright © 2010, Open Geospatial Consortium, Inc.
    • 2. Interoperability allows a Common Reality
      • “ What we are doing is facilitating a common picture of reality for different organizations which have different views of the reality, the disaster, the emergency, the catastrophe, that they all have to deal with collectively”
      • David Schell
      • Chairman
      • OGC
      Copyright © 2009, Open Geospatial Consortium, Inc.,
    • 3. OGC Snapshot Copyright © 2010, Open Geospatial Consortium, Inc., OGC Membership Distribution By Region
      • An International Voluntary Consensus Standards Organization, founded in 1994.
      • 400 members and growing
      • 28 implementation standards
      • Hundreds of product implementations in the market
      • Broad user community implementation worldwide
    • 4. OGC Snapshot Copyright © 2010, Open Geospatial Consortium, Inc.,
      • An International Voluntary Consensus Standards Organization, founded in 1994.
      • 400 members and growing
      • 28 implementation standards
      • Hundreds of product implementations in the market
      • Broad user community implementation worldwide
      OGC Membership Distribution By Type
    • 5. OGC Web Services Copyright © 2008, Open Geospatial Consortium, Inc., All Rights Reserved.
          • Web Map Service (WMS)
          • Web Feature Service (WFS)
          • Web Coverage Service (WCS)
          • Catalogue (CSW)
          • Geography Markup Language (GML)
          • Web Map Context (WMC)
          • OGC KML
          • Others…
      Just as http:// is the dial tone of the World Wide Web, and html / xml are the standard encodings, the geospatial web is enabled by OGC standards: Relevant to geospatial information applications: Critical Infrastructure, Emergency Management, Weather, Climate, Homeland Security, Defense & Intelligence, Oceans Science, others
    • 6. Sensor Web Enablement (SWE) © 2009 Open Geospatial Consortium, Inc.
    • 7. Basic Requirements for Sensor Web
      • Quickly discover sensors and sensor data (secure or public) that can meet my needs – location, observables, quality, ability to task
      • Obtain sensor information in a standard encoding that is understandable by me and my software
      • Readily access sensor observations in a common manner, and in a form specific to my needs
      • Task sensors , when possible, to meet my specific needs
      • Subscribe to and receive alerts when a sensor measures a particular phenomenon
      © 2009 Open Geospatial Consortium, Inc.
    • 8. OGC Sensor Web Enablement (SWE) Standards
      • Information Models and Schema
        • Sensor Model Language (SensorML)
        • Observations and Measurements (O&M)
        • TransducerML
      • Web Services
        • Sensor Observation Service (SOS)
        • Sensor Alert Service (SAS)
        • Sensor Planning Service (SPS)
        • Sensor Registries
      Copyright © 2008, Open Geospatial Consortium, Inc., All Rights Reserved.
    • 9. Observations and Measurements (O&M)
      • An observation is an event that estimates an observed property of a feature of interest , using a procedure , and generating a result
      • Sometimes ‘observed property’ and ‘feature of interest’ are conflated in describing geophysical parameters, e.g. sea surface temperature
      • Observations are modeled within General Feature Model [ISO 19109]
      Copyright © 2010, Open Geospatial Consortium, Inc.
    • 10. Model of a Sensor System Copyright © 2009, Open Geospatial Consortium, Inc., All Rights Reserved. Sensor Web Enablement Architecture, OGC document 06-021r4
    • 11. What is SensorML?
      • Models and XML encodings for describing processes
        • Detectors, actuators, etc. are modeled as processes
        • Can be used to describe “left-side” processes (“how were these observations obtained?”) and “right-side” processes (“what can I derive from these observations?”)
      • Vision:
        • Discovery of transducers and processes / plug-n-play sensors – SensorML is the means by which sensors and processes make themselves and their capabilities known
        • Observation lineage – SensorML provides sensing and processing history of observations; supports quality knowledge of observations
        • On-demand processing – SensorML supports on-demand derivation of higher-level information (e.g. geolocation or products) without a priori knowledge of the sensor system
        • Extensibility – SensorML provides easy means for meeting various community needs
      Copyright 2007, Open Geospatial Consortium, Inc.
    • 12. NASA Projects: SensorML-Enabled On-demand Processing (e.g. georeferencing and product algorithms) AMSR-E SSM/I Cloudsat LIS TMI TMI & MODIS footprints MAS Geolocation of satellite and airborne sensors using SensorML
    • 13. SensorML Examples
      • Video Web Cam - sensor system illustrating the ability to modularize descriptions between various components
      • CEOS CalVAL Satellite Sensors - European Space Agency (ESA) and Committee for Earth Observation Satellites (CEOS) SensorML profiles (RelaxNG), instances, and documentation for standard satellite sensor descriptions.
      • Tigershark UAV video camera - fairly complete description of a high-definition video camera on-board an Unmanned Air Vehicle (UAV).
      • Davis Weather Station - Example description of a weather station.
      • CBRNE Gamma Detector - Simple HPI 2070 Gamma detector.
      • Marine CTP Buoy Sensor - An SBE 37-SMP MicroCAT Conductivity-Temperature-Pressure sensor mounted on a buoy by the Monterey Bay Aquarium Research Institute (MBARI).
      • CSM Frame Sensor Model - Community Sensor Model (CSM) based Frame Sensor Model for geolocating imagery from GSI KCM-39 video camera.
      Copyright © 2010, Open Geospatial Consortium, Inc.
    • 14. Copyright © 2009, Open Geospatial Consortium, Inc. SWE Web Services Access Sensor Description and Data Command and Task Sensor Systems Dispatch Sensor Alerts to registered Users Catalog Service SOS SAS SPS Clients Discover Services, Sensors, Providers, Data Accessible from various types of clients from PDAs and Cell Phones to high end Workstations
    • 15. Sensor Observation Service Mike Botts SOS GetObservation O&M / SWE Common Client DescribeSensor SensorML GetCapabilities Capabilities.xml
    • 16. SWE and Geo-processing Workflow SOS ! SAS Sensor Net Mission Control Center Access & Processing Node WPS CSW Register Measurement Types SPS CSW Copyright © 2010, Open Geospatial Consortium, Inc. SAS SOS
    • 17. OGC Web Processing Service (WPS) WPS GetCapabilities Execute DescribeProcess Algorithms Repository … … Algorithm 1 Data Handler Repository … … Data Handler A Communication over the web using HTTP WPS-client Web Processing Service
    • 18. SWE draft standards used in OGC OWS-3 Testbed in 2005
      • 3D Geobrowser used in OWS-3 to
      • Survey Area of Interest
      • Command a UAV with SPS
      • Access UAV imagery with SOS
      • Overlay in 3D with SensorML
    • 19. OWS-3 Testbed and SWE UAV swath over DRG over terrain
    • 20. Air quality monitoring pilot
      • Emission/imission modeling in Moulin, Fr (simple site) and Linz (complex site; more data sources)
      • Cross border integration on French/Belgium border in Flanders
      • SANY/SWE compliant systems
      • Managing QA information within SOS
      • Fusion & modelling services
    • 21. DLR: Tsunami Early Warning & Mitigation Center Seismic Monitoring Buoys Tide Gauges Ocean Bottom Units EO Data GPS Systems Observations Simulation Risk- & Vulnerability Modelling Geospatial Data Repository BMG 5in1 / 6in1 System
    • 22. Taiwan Debris Flow Monitoring - OGC System Framework SOS GSMaP Hourly image WMS,WFS-T WPS GetFeatureInfo JSON GetObservation JSON
      • Validation process
      • Least Square Fitting process
      Client Execute JSON GetObservation ADFC GIS.FCU,Taiwan GEOGrid, AIST, Japan Rain gauge Observation System Sensor Other Observation System Sensor
    • 23. GEOSS AIP-2 biodiversity & climate change Led by CNR, Univ of Colorado, GBIF IP3 Client & Workflow engine IP3 Distributed Community Catalog/Mediator WCS - T Other Non-OGC Services GBIF Non-OGC Services OGC WPS Access to Model CSW GEOSS Portal WCS WFS req req req resp resp resp req req resp resp req resp req resp req resp Broker Research Scientist req resp
    • 24. GEOSS AIP-2 flood prediction and response Led by NASA, Spot Image, Northrop Grumman, ERDAS From portal select desired theme and area of interest Wizard picks appropriate workflow for desired result Wizard Mozambique Disaster Management Information System (DMIS) Workflows Estimated rainfall accumulation and flood prediction model Flood Model Selected workflow automatically activates needed assets and models Baseline water level, flood waters and predicted flooding
    • 25. Geospatial Digital Rights Management
      • OGC members are leveraging broader standards based Digital Rights Management (DRM) approaches with OGC standards
      Copyright © 2010, Open Geospatial Consortium, Inc. Licensing Pricing Copyright GeoDRM Reference Model Authentication
    • 26. SWE Standards Current Status – June 2010
      • Current specs are in various stages (V1.0 specs approved 2007)
        • SensorML/SWE Common – Version 1.0.1 (V2.0 underway)
        • Observations & Measurement – Version 1.0 (V2.0 underway)
        • WNS – Request for Comments
        • SOS – Version 1.0 (V2.0 underway)
        • SPS – Version 1.0 (V2.0 underway)
        • SAS – Ready for final vote (may skip V1.0 for V2.0; may incorporate into SOS and Event Service)
      • Approved SWE standards can be downloaded:
        • Specification Documents:
        • Specification Schema:
    • 27. Interoperability is about Organizations
      • “ Interoperability seems to be about the integration of information.
      • What it’s really about is the coordination of organizational behavior.”
      • David Schell
      • Chairman
      • OGC
      Copyright © 2010, Open Geospatial Consortium, Inc.
    • 28. For Details on OGC Standards…
      • OGC Standards
        • Freely available
      • OGC Reference Model (ORM)
        • Overview of OGC Standards Baseline
        • Resource for defining architectures for specific applications
        • George Percivall, gpercivall at
      Copyright © 2010, Open Geospatial Consortium, Inc.