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Spatial TinyDB: A Spatial Sensor Database System for the USN Environment

Author

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  • Dong-Oh Kim
  • Lei Liu
  • In-Su Shin
  • Jeong-Joon Kim
  • Ki-Joon Han

Abstract

For the Ubiquitous Sensor Network (USN) environment, which generally uses spatial as well as aspatial sensor data, a sensor database system to manage these data is essential. For this reason, sensor database systems such as TinyDB and Cougar are being developed by researchers. However, as most of these systems do not support spatial data types and spatial operators for managing spatial sensor data, they are not suitable for the USN environment. Therefore, in this paper, we design and implement Spatial TinyDB which is a spatial sensor database system that extends TinyDB to support spatial data types and spatial operators for the efficient management of spatial sensor data. In particular, Spatial TinyDB provides memory management and filtering functions to reduce system overload caused by sensor data streams. Finally, we prove that Spatial TinyDB is superior by comparing its actual performance, in terms of execution time, accuracy, and memory usage, with that of TinyDB.

Suggested Citation

  • Dong-Oh Kim & Lei Liu & In-Su Shin & Jeong-Joon Kim & Ki-Joon Han, 2013. "Spatial TinyDB: A Spatial Sensor Database System for the USN Environment," International Journal of Distributed Sensor Networks, , vol. 9(8), pages 512368-5123, August.
    • Handle: RePEc:sae:intdis:v:9:y:2013:i:8:p:512368
    DOI: 10.1155/2013/512368
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