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Transactions: WSEAS TRANSACTIONS ON INFORMATION SCIENCE AND APPLICATIONS
Transactions ID Number: 54-184
Full Name: Ying-Han Chen
Position: Ph.D. Candidate
Age: ON
Sex: Male
Address: 1001 University Road, Hsinchu
Country: TAIWAN
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E-mail address: winand@cssp.cn.nctu.edu.tw
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Title of the Paper: a demand-driven architecture for web-based tracking systems
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Number of paper pages: 10
Abstract: With the convergence of the Internet and the Global Positioning System (GPS), a common approach called GPS tracking system has been developed nowadays. A GPS tracking system uses GPS to determine the precise location of a vehicle, person, or other assets and shares information with remote clients through the Internet. In the outdoors, the device usually connects to the Internet through mobile networks like GPRS or 3G. However, the weaknesses of a mobile network are low bandwidth and high charging strategies compared to Ethernet or Wi-Fi. In this paper, a demand-driven architecture for web-based tracking systems is presented. By integrating several technologies nowadays, this architecture is designed to improve the efficiency for the location-aware applications. The proposed architecture focuses on two problems. One is the redundant connection, causing the waste of bandwidth and fees during the connection period in the mobile network. The other is the data asynchron!
ization during the period of transmission. We not only addressed the connection scheme to solve above issues, but also designed a prototype on an embedded platform for web-based tracking systems. The performance has also been evaluated for the total latency time when a user exploits different communication medium, and the results showed that the user can monitor the status of target in real time even in the worst case.
Keywords: GPS, Redundant connections, Asynchronization, Tracking
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