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Real Time Location System using ZigBeE Sensors

Real Time Location System using ZigBeE Sensors. CSE646 Mary Nitya Tharakan Person # 35085860. Real time Location system [RTLS]. Unlike traditional sensors like UV and infrared sensors, ZigBee sensors are in use.

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Real Time Location System using ZigBeE Sensors

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  1. Real Time Location System using ZigBeE Sensors CSE646 Mary NityaTharakan Person # 35085860

  2. Real time Location system [RTLS] • Unlike traditional sensors like UV and infrared sensors, ZigBee sensors are in use. • RTLS supports features such as exit alerts , patient tracking , patient safety and asset tracking which are important in hospitals. • It has been introduced by a San Diego based company by the name Awarepoint.

  3. What is different about it? • RTLS systems uses Zig Bee which offers the following features such as – • Extra Encryption Services (application and network keys implement extra 128b AES encryption). • Association and authentication (only valid nodes can join the network). • Routing protocol: AODV, a reactive ad hoc network has been implemented to perform the data routing and forwarding process to any node in the network.

  4. Zigbee network • Three types of nodes exist in a ZigBee Network Coordinator: - the "master" device, it governs the network. Routers: -routes the information which sent by the end devices. End device (the motes - the sensor nodes) :- the ones which take the information from the environment. ZigBee creates star topology.

  5. 802.15 Vs Zigbee • 802.15.4 is primarily used to achieve point to point and energy efficient communications. • ZigBee defines extra services (start topology routing, encryption, application services) over 802.15.4. • ZigBee creates semi-centralized networks where just the end devices can sleep.

  6. Advantages • Unlike infrared sensors it offers persistent room level location tracking. • Avoids interference with medical equipment. • Maintains separation from Wi-Fi network.

  7. References • http://www.hoise.com/vmw/09/articles/vmw/LV-VM-07-09-8.html • http://www.rfidsb.com/rfid-street-your-weekly-inside-scoop-rfid/524-gps-sensors-mesh-networks-enhance-wireless-id-apps.html • http://www.awarepoint.com/ • http://www.digi.com/technology/rf-articles/wireless-zigbee.jsp • Most slides from http://www.sensor-networks.org/index.php?page=0823123150

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