Abstract
Sensor networks are being widely deployed for measurement, detection and surveillance applications. In these new applications, users issue long-running queries over a combination of stored data and sensor data. Most existing applications rely on a centralized system for collecting sensor data. These systems lack flexibility because data is extracted in a predefined way; also, they do not scale to a large number of devices because large volumes of raw data are transferred regardless of the queries that are submitted. In our new concept of sensor database system, queries dictate which data is extracted from the sensors. In this paper, we define the concept of sensor databases mixing stored data represented as relations and sensor data represented as time series. Each long-running query formulated over a sensor database defines a persistent view, which is maintained during a given time interval. We also describe the design and implementation of the COUGAR sensor database system.
Praveen Seshadri is currently on leave at Microsoft: 3/1102 Microsoft, One Microsoft Way, Redmond, WA. pravse@microsoft.com.
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Bonnet, P., Gehrke, J., Seshadri, P. (2001). Towards Sensor Database Systems. In: Tan, KL., Franklin, M.J., Lui, J.CS. (eds) Mobile Data Management. MDM 2001. Lecture Notes in Computer Science, vol 1987. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44498-X_1
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DOI: https://doi.org/10.1007/3-540-44498-X_1
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