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Zigbee- The Future of Data Communications
 

Zigbee- The Future of Data Communications

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Zigbee is a technological standard designed for control and sensor networks based on IEEE 802.15.4. The standard is developed and promoted by the Zigbee Alliance.

Zigbee is a technological standard designed for control and sensor networks based on IEEE 802.15.4. The standard is developed and promoted by the Zigbee Alliance.

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    Zigbee- The Future of Data Communications Zigbee- The Future of Data Communications Presentation Transcript

    • ZIGBEE  ZigBee is a technological standard designed for control and sensor networks.  Based on the IEEE 802.15.4 Standard for WPAN.  Created by the ZigBee Alliance.
    • ZIGBEE ALLIANCE and many more....
    • CHARACTERISTICS  Low Cost  Low Power Consumption  Low Data Rate  High Transmission Range  Scalability  Reliability  High Security  Mesh Networking
    • TOPOLOGIES
    • ARCHITECTURE Zigbee Alliance: oThe Software oNetwork, Security & Application Layers oBrand Management IEEE 802.15.4: oThe Hardware oPhysical & MAC Layers
    • ARCHITECTURE
    • PHYSICAL LAYER PHY functionalities:  Activation and deactivation of the radio transceiver  Energy Detection (ED) within the current channel  Link Quality Indication (LQI) for received packets  Clear Channel Assessment for CSMA-CA  Channel frequency selection  Data transmission and reception
    • OPERATING FREQUENCIES  ISM ( INDUSTRIAL SCIENTIFIC AND MEDICAL)  868 MHz European Band at 20kbps  915 MHz North American Band at 40kbps  2.4 GHz Global Band at 250kbps Center Frequency( MHz) Frequency Band (MHz) No. of channels Channel (k) Bit Rate (kb/s) 868 868-868.8 1 0 20 915 902-928 10 1-10 40 2450 2400-2483.5 16 11-26 250
    • MAC LAYER  Device Classes  Full function device (FFD)  Can talk to any device.  Reduced function device (RFD)  Cannot talk to all the devices.  Address  All devices must have 64 bit IEEE addresses  Short (16 bit) addresses can be allocated to reduce packet size
    • DEVICES • Zigbee Coordinator (ZC): • it is the root of the network tree • acts as a bridge to other networks. • Zigbee Router (ZR): • acts as an intermediate router. • Zigbee End Devices (ZED): • functionality to talk to the parent node. • cannot relay data from other devices • allows the node to be asleep .
    • MAC LAYER  Transmission Mode  Beacon enable mode  Periodic data  Repetitive low latency data using.  Non-Beacon enable mode  Intermittent data using.
    • APPLICATION SUPPORT (APS)
    • APPLICATION FRAMEWORK
    • ZIGBEE DEVICE OBJECT (ZBO)
    • MESH NETWORKING
    • MESH NETWORKING
    • MESH NETWORKING
    • MESH NETWORKING
    • MESH NETWORKING
    • APPLICATIONS PERSONAL HEALTH CARE ZigBee LOW DATA-RATE RADIO DEVICES HOME AUTOMATION CONSUMER ELECTRONICS PC & PERIPHERALS TOYS & GAMES INDUSTRIAL & COMMERCIAL
    • ZIGBEE AND BLUETOOTH Feature(s) Bluetooth ZigBee Power Profile days years Complexity complex Simple Nodes/Master 7 64000 Latency 10 seconds 30 ms – 1s Range 10m 70m ~ 300m Extendibility No Yes Data Rate 1 Mbps 250 Kbps Security 64bit, 128bit 128bit AES and Application Layer
    • 802 WIRELESS SPACE Data Rate (Mbps) ZigBee 802.15.4 802.15.3 802.15.3a 802.15.3c WPAN WLAN WMAN WWAN WiFi 802.11 0.01 0.1 1 10 100 1000 Bluetooth 802.15.1 IEEE 802.22 WiMax IEEE 802.16 IEEE 802.20