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Presents  Seminar on   “ ZigBee” By K.Gireesh 63,First floor, 5th Main Road, CIT Nagar, Nandanam, Chennai-35. Tel: 044-65253457 Mobile: 98405 77448 Website:  www.vetechnologies.org  Email:  [email_address]
What is ZIGBEE Emerging standardized protocol for Ultra Low Power Wireless Personal Area Networks (WPANs) ZigBee  is an established set of specifications for wireless personal area networking (WPAN) i.e, digital radio connections between computers and related devices.   ZigBee is targeted at radio-frequency (RF) applications which require a low data rate, long battery life, and secure networking.
ZigBee Technical Goals ,[object Object],[object Object],[object Object],[object Object],[object Object]
The ZigBee Alliance is an  association of companies working together to enable reliable, cost-effective, low-power, wirelessly networked, monitoring and control products based on an open global standard.
 
IEEE 802.15.4   ,[object Object]
WPANs ,[object Object],[object Object]
 
IEEE 802 Wireless Space
ZigBee Vs Bluetooth ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ZigBee Vs Other Wireless Protocols
IEEE 802.15.4 Standard Basics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object]
IEEE 802.15.4 Characteristics ,[object Object],[object Object],[object Object]
ZigBee Applications
Architecture These layers facilitate the features that make ZigBee very attractive: low cost, easy implementation, reliable data transfer, short-range operations, very low power consumption and adequate security features
ZigBee Alliance – IEEE- Customer Relations
Physical Layer
Physical Layer Functionalities ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
IEEE 802.15.4 Physical Layer Frequency Band
IEEE 802.15.4 PHY/MAC Characteristics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MAC Layer ,[object Object]
IEEE 802.15.4 MAC Features ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MAC Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Pieces : PAN Coordinator PAN Coordinator • “ owns” the network •  Starts it •  Allows other devices to join it •  Provides binding and address-table services  •  Saves messages until they can be delivered •  And more… could also have i/o capability •  A “full-function device” – FFD •  Mains powered
Network Pieces : Router Routers •  Routes messages •  Does not own or start network •  Scans to find a network to join •  Given a block of addresses to assign •  A “full-function device” – FFD •  Mains powered depending on topology •  Could also have i/o capability
Network Pieces : End Devices End Device •  Communicates with a single device •  Does not own or start network •  Scans to find a network to join •  Can be an FFD or RFD (reduced function device) •  Usually battery powered
IEEE 802.15.4 Device Types ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
ZigBee Device Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Network Topologies
ZigBee Network Formation
 
ZigBee Network Model
ZigBee Mesh Networking
Traffic Modes ,[object Object],[object Object]
Beacon Mode ,[object Object],[object Object]
Non-Beacon Mode ,[object Object],[object Object]
Data Transfer Model Data transferred from device to coordinator •  In a beacon-enable network, device finds the beacon to synchronize to the super-frame structure. Then using slotted CSMA/CA to transmit its data. •  In a non beacon-enable network, device simply transmits its data using un-slotted CSMA/CA
Data transferred from coordinator to device •  In a beacon-enable network, the coordinator  indicates in the beacon that “ data is pending .” •  Device periodically listens to the beacon and transmits a  MAC command request  using slotted CSMA/CA if necessary.
THANK  YOU

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Zigbee

  • 1. Presents Seminar on “ ZigBee” By K.Gireesh 63,First floor, 5th Main Road, CIT Nagar, Nandanam, Chennai-35. Tel: 044-65253457 Mobile: 98405 77448 Website: www.vetechnologies.org Email: [email_address]
  • 2. What is ZIGBEE Emerging standardized protocol for Ultra Low Power Wireless Personal Area Networks (WPANs) ZigBee is an established set of specifications for wireless personal area networking (WPAN) i.e, digital radio connections between computers and related devices. ZigBee is targeted at radio-frequency (RF) applications which require a low data rate, long battery life, and secure networking.
  • 3.
  • 4. The ZigBee Alliance is an association of companies working together to enable reliable, cost-effective, low-power, wirelessly networked, monitoring and control products based on an open global standard.
  • 5.  
  • 6.
  • 7.
  • 8.  
  • 10.
  • 11. ZigBee Vs Other Wireless Protocols
  • 12.
  • 13.
  • 14.
  • 16. Architecture These layers facilitate the features that make ZigBee very attractive: low cost, easy implementation, reliable data transfer, short-range operations, very low power consumption and adequate security features
  • 17. ZigBee Alliance – IEEE- Customer Relations
  • 19.
  • 20. IEEE 802.15.4 Physical Layer Frequency Band
  • 21.
  • 22.
  • 23.
  • 24.
  • 25. Network Pieces : PAN Coordinator PAN Coordinator • “ owns” the network • Starts it • Allows other devices to join it • Provides binding and address-table services • Saves messages until they can be delivered • And more… could also have i/o capability • A “full-function device” – FFD • Mains powered
  • 26. Network Pieces : Router Routers • Routes messages • Does not own or start network • Scans to find a network to join • Given a block of addresses to assign • A “full-function device” – FFD • Mains powered depending on topology • Could also have i/o capability
  • 27. Network Pieces : End Devices End Device • Communicates with a single device • Does not own or start network • Scans to find a network to join • Can be an FFD or RFD (reduced function device) • Usually battery powered
  • 28.
  • 29.
  • 32.  
  • 35.
  • 36.
  • 37.
  • 38. Data Transfer Model Data transferred from device to coordinator • In a beacon-enable network, device finds the beacon to synchronize to the super-frame structure. Then using slotted CSMA/CA to transmit its data. • In a non beacon-enable network, device simply transmits its data using un-slotted CSMA/CA
  • 39. Data transferred from coordinator to device • In a beacon-enable network, the coordinator indicates in the beacon that “ data is pending .” • Device periodically listens to the beacon and transmits a MAC command request using slotted CSMA/CA if necessary.