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

(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.

Resources: 

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