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A Web-based Sensor Network Query and Data Management  

Hwang, Kwang-Il (고려대학교 전자컴퓨터공학과)
Eom, Doo-Seop (고려대학교 전자공학과)
Publication Information
Journal of KIISE:Computer Systems and Theory / v.33, no.11, 2006 , pp. 820-829 More about this Journal
Abstract
Wireless sensor networks consisting of hundreds to thousands of nodes are expected to be increasingly deployed in coming years, as they enable reliable monitoring and analysis of physical worlds. These networks have unique features that are very different from traditional networks, e.g., the numerous numbers of nodes, limitation in power, processing, and memory. Due to these unique features of wireless sensor networks, sensor data management including querying becomes a challenging problem. Furthermore, due to wide popularization of the Internet and its facility in use, it is generally accepted that an unattended network can be efficiently managed and monitored over the Internet. In particular, in order to more efficiently query and manage data in a sensor network. in this paper, the architecture of a sensor gateway including web-based query server is presented and its implementation detail is illustrated. The presented web-based gateway is largely divided into two important parts: Internet part and sensor network part. The sensor network part plays an important role of handling a variety of sensor networks, including flat or hierarchical network architecture, by using internally layered architecture for efficiently querying and managing data in a sensor network. In addition, the Internet part provides a modular gateway function for favorable exchange between the sensor network and Internet.
Keywords
Gateway design; Query Server; Sensor Data Management; Sensor Querying; Wireless sensor networks;
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