Open sensor web architecture: Core services

As sensor network deployments begin to grow there emerges an increasing need to overcome the obstacles of connecting and sharing heterogeneous sensor resources. Common data operations and transformations exist in deployment scenarios and can be encapsulated into a layer of software services that hide the complexity of the underlying infrastructure from the application developer. NICTA Open Sensor Web Architecture (NOSA) is built upon the Sensor Web Enablement (SWE) standard defined by the Open Geospatial Consortium (OGC), which is composed of a set of specifications, including SensorML, Observation & Measurement, Sensor Collection Service, Sensor Planning Service and Web Notification Service. NOSA presents a reusable, scalable, extensible, and interoperable service oriented Sensor Web architecture that (i) conforms to the SWE standard; (ii) integrates Sensor Web with Grid Computing and (iii) provides middleware support for Sensor Webs.