A new framework for on-demand virtualization, repurposing and fusion of heterogeneous sensors
- 1 January 2009
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
This paper describes our first step towards the realization of complex and large scale cross-organization virtual observatories by presenting a new semantically-enhanced ldquosensor network as a servicerdquo (SNaaS) framework, which can repurpose existing sensor networks as needed and aggregate and fuse heterogeneous sensors into new virtual sensors in near-real-time. The architecture of this system allows users to create virtual sensors in a Web 2.0 collaborative map interface. Components of the system are highlighted in the paper including a semantically enhanced streaming data toolkit, virtual sensor ontologies and management middleware. Case studies are presented which can allow users to create new virtual rain gages based on the NEXRAD (next generation weather radar) data stream with or without in-situ rain gages on demand in a Chicago urban watershed testbed. The resulting virtual sensor data streams then can be published in multiple formats including a SWE-compliant one so that external SWE-compliant users and applications can seamlessly query and integrate them.Keywords
This publication has 28 references indexed in Scilit:
- Sensor Metadata Management and Its Application in Collaborative Environmental ResearchPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2008
- Data Stream Management: Aggregation, Classification, Modeling, and Operator PlacementIEEE Internet Computing, 2008
- Near-real-time precipitation virtual sensor using NEXRAD dataPublished by Association for Computing Machinery (ACM) ,2008
- Semantic Sensor WebIEEE Internet Computing, 2008
- Optimized Autonomous Space In-situ Sensor-Web for Volcano Monitoring2008 IEEE Aerospace Conference, 2008
- Sensor standards harmonization-path to achiewving sensor interoperabilityPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- Conceptual Challenges and Practical Issues in Building The Global Lake Ecological Observatory NetworkPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- The Ring Buffer Network Bus (RBNB) DataTurbine Streaming Data Middleware for Environmental Observing SystemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- PULSENet¿Published by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- A distributed geospatial infrastructure for Sensor WebComputers & Geosciences, 2005