A mobile asset tracking system architecture under mobile-stationary co-existing WSNs

The tracking of multiple wireless mobile nodes is not easy with current legacy WSN technologies, due to their inherent technical complexity, especially when heavy traffic and frequent movement of mobile nodes are encountered. To enable mobile asset tracking under these legacy WSN systems, it is nece...

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Bibliographic Details
Published in:Sensors (Basel, Switzerland) Switzerland), 2012-12, Vol.12 (12), p.17446-17462
Main Authors: Kim, Tae Hyon, Jo, Hyeong Gon, Lee, Jae Shin, Kang, Soon Ju
Format: Article
Language:English
Subjects:
Architecture
Communication
Communication systems
Computer Communication Networks
Hospital Information Systems
Humans
Legacy
Localization
Middleware
mobile asset tracking
Networks
Offices
pervasive computing
Protocol
sensor network architecture
Sensors
Software
Systems stability
Telemedicine
Tracking
Wireless Technology
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Summary:The tracking of multiple wireless mobile nodes is not easy with current legacy WSN technologies, due to their inherent technical complexity, especially when heavy traffic and frequent movement of mobile nodes are encountered. To enable mobile asset tracking under these legacy WSN systems, it is necessary to design a specific system architecture that can manage numerous mobile nodes attached to mobile assets. In this paper, we present a practical system architecture including a communication protocol, a three-tier network, and server-side middleware for mobile asset tracking in legacy WSNs consisting of mobile-stationary co-existing infrastructures, and we prove the functionality of this architecture through careful evaluation in a test bed. Evaluation was carried out in a microwave anechoic chamber as well as on a straight road near our office. We evaluated communication mobility performance between mobile and stationary nodes, location-awareness performance, system stability under numerous mobile node conditions, and the successful packet transfer rate according to the speed of the mobile nodes. The results indicate that the proposed architecture is sufficiently robust for application in realistic mobile asset tracking services that require a large number of mobile nodes.
ISSN:1424-8220
1424-8220
DOI:10.3390/s121217446