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The Design And Implementation Of Data Management Module For Wireless Sensor Network Middleware

Posted on:2012-02-29Degree:MasterType:Thesis
Country:ChinaCandidate:R G ChenFull Text:PDF
GTID:2248330395958405Subject:Computer application technology
Abstract/Summary:PDF Full Text Request
In recent years, with the development of sensor technology, communications technology, Embedded and distributed computing technologies wireless,there are more and more wireless sensor network applications. Traditional database management systems are best equipped to run one-time queries over finite stored data sets. However, Since the continuous unbounded streams of data in sensor network, require long-running, or continuous, queries over continuous unbounded streams of data. Therefore, its valuable to investigate data management and query processing for this class of applications.This article designed and implemented a general-purpose prototype data stream management system for sensor network gateways middleware. The system support continuous queries on streaming data, the users can use the system to manage the stream data as the use of traditional database management system. At first, This paper has discussed the typical data stream management systems, summarizes propos-ed our data stream management system architecture and poses many interesting challenges on the data stream management system. Then, investigate the data stream related technology, such as streaming data model, streaming data query language, query language parse, continuously query algorithm, query optimization strategies and so on.To design a SQL-based continuous query language CQL use in the data stream management system. Pose aggregate query algorithm base on sliding window with buckets and the join query base on sliding window with cache and circular scan operator scheduling strategy. Finally, design and implement the data stream management systems. The DSMS system reference to many ideas of the traditional database management system, and has been improved to be applied in stream data environment more effectively, make users use the DSMS system to manage stream data of sensor networks as convenience as use the traditional database management system.
Keywords/Search Tags:wireless sensor networks, data stream, data stream management system, continuous query, operator
PDF Full Text Request
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