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Small sized devices with communication capability are accepted in real applications recent years and the applications increase business efficiency. We developed an asset tracking application using a wireless sensor network. The application consists of three components: a wireless sensor network, a middleware, and a user interface. The sensor network consists of 21 mobile nodes, 29 reference nodes,...
Wireless sensor networks (WSN) generate large volumes of raw data which possess natural heterogeneity. WSNs are normally application specific with no sharing or reusability of sensor data among applications. In order for applications and services to be developed independently of particular WSNs, sensor data need to be enriched with semantic information. In this paper, we propose a semantic Web architecture...
In the near future, first responders such as firefighters might be supported by sensor nodes, both installed before the incident and placed by the responders themselves. To communicate with these sensor nodes, the first responders could be equipped with hand held devices, e.g. PDAs with wireless LAN, additionally equipped with a radio module of the same type as used by the sensor nodes. This scenario...
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