Submitted to Sensors, 21 July 21, 2011
Arne Broring, Patrick Maue´, Krzysztof Janowicz, Daniel Nust, and Christian Malewski
“Environmental sensors have continuously improved by becoming smaller, cheaper, and more intelligent over the past years. As consequence of these technological advancements, sensors are increasingly deployed to monitor our environment. The large variety of available sensor types with sometimes incompatible protocols complicates the integration of sensors into observation systems. The standardized Web service interfaces and data encodings deﬁned within OGC’s Sensor Web Enablement (SWE) framework makes sensors available over the Web and hide the heterogeneous sensor protocols from applications.
“So far, the SWE framework does not describe how to integrate sensors on-the-ﬂy with minimal human intervention. The driver software which enables access to sensors has to be implemented. The measured sensor data has to be manually mapped to the SWE models. In this article we introduce a Sensor Plug & Play infrastructure for the Sensor Web by combining (1) semantic matchmaking functionality, (2) a publish-subscribe mechanism underlying the Sensor Web, as well as (3) a model for the declarative description of sensor interfaces which serves as a generic driver mechanism. We implement and evaluate our approach by applying it to an oil spill scenario. The matchmaking is realized using existing ontologies and reasoning engines and provides a strong case for the semantic integration capabilities provided by Semantic Web research.”
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