wilamowski-b-m-irwin-j-d-industrial-communication-systems-2011

50-10 Industrial Communication Systems
bandwidth limit of IEEE 802.15.4 PHY. Teledosimetry requires nomadism support as the network node
(the person with his personal dosimeter) may be mobile. Current ZigBee specifications do not fully support
mobility without packet loss because of its inherent limitation to AODV protocol used in ZigBee NWK.
To deploy ZigBee WSN application in large scale, one needs to develop typical architecture as in
Figure 50.7.
WSN middleware is an important component because it helps to reduce the power consumption of
end devices (sensors) by avoiding the concurrent requests of the same sensor data from several applications.
It also helps to mask the complexity of the network topology to the applications.
50.7 Conclusion
In this chapter, an overview of ZigBee wireless communication technology has been presented. Its specifications
continue to evolve to take into account new features and improvements, thanks to feedbacks
from manufacturers and members of the ZigBee Alliance. For example, ZigBee 2006 and ZigBee 2007
are the two versions of the ZigBee stack protocol for residential and building automation applications;
whereas ZigBee Pro is targeted for industrial automation applications. For an in-depth study of ZigBee
technologies, refer to [ZigBee Alliance] for more details about different ZigBee specifications.
References
[Meshnetics] http://www.meshnetics.com
[ZigBee Alliance] Zigbee Alliance, URL from January 2009: http://www.zigbee.org
© 2011 by Taylor and Francis Group, LLC