Short Paper: Semantic Sensor Composition.

This paper describes an application of semantics to sensors to automatically create sensor compositions. Two main contributions of this paper are a sensor ontology and a composition system. The OWL ontology describes user goals, functional and non-functional properties of sensors and sensor composition, while the Region Connection Calculus and Allen's Interval Algebra are used for describing the spatial and temporal properties of sensors. The composition system composes sensors and sensor processes to satisfy a user specified goal. Through experiments, this paper demonstrates the feasibility of semantics for specifying sensor compositions with low reasoning times, and the composition approaches with low composition times in most cases. Some scalability issues with semantic sensor networks are resolved with reasoning, but new composition approaches are needed for large scale use requiring large compositions.