OGC Sensor Web Enablement

  • Enables interoperability among different sensor types, different systems, and different groups:
    • Remote sensor vs. in-situ
    • Emergency system, utility, defense, science, and intelligence
    • Government vs. commercial
  • Supports any sensor
  • Supports semantic web on-line dictionary and ontology
  • Task sensors
  • Subscribe to sensor published alerts

OGC SWE’s goal is to discover:

  • Sensor systems
  • Observations and processes
  • Sensor capabilities and quality of measurements
  • Sensor parameters that allow software to process and geolocate observations
  • Methods to retrieve real-time or time series observations and coverages

Sensor Web Enablement: Overview and High-Level Architecture

(Source: http://portal.opengeospatial.org/files/?artifact_id=25562)

SWE Models

SWE is a Service Oriented Architecture (SOA) open standard providing:

  • Four standard web services interface models
    • Sensor Observation Service (SOS) - Fetch observations from a sensor or collection of sensors
    • Sensor Alert Service (SAS) - Publishing and subscribing to alerts from sensors
    • Sensor Planning Service  (SPS) - Requesting user-driven acquisitions and observations
    • Web Notification Service (WNS) - Asynchronous delivery of messages or alerts from SAS and SPS web services and other elements of service workflows.
  • Three XML encoding information models
    • Sensor Model Language (SensorML) - Standard models and XML Schema for describing sensors systems and processes.
    • Observations and Measurements (O&M) - Standard models and XML Schema for encoding observations and measurements from a sensor, both archived and real-time.
    • Transducer Markup Language (TML) - The conceptual model and XML Schema for describing transducers and supporting real-time streaming of data to and from sensor systems.


 * OGC Sensor Web Enablement Tutorials: http://www.ogcnetwork.net/SWE_Tutorials