zigbee ppt
DESCRIPTION
TRANSCRIPT
WELCOME
The ZigBee Name
• Named for erratic, zig-zagging patterns of bees between flowers
• Symbolizes communication between nodes in a mesh network
• Network components analogous to queen bee, drones, worker bees
What is ZigBee?
• Technological Standard Created for Control and Sensor Networks
• Based on the IEEE 802.15.4 Standard • Created by the ZigBee Alliance
introduction
• Zigbee is specification for high level communication protocols using small.
• The IEEE 802.15.4 standard was completed in May 2003.
• The ZigBee specifications were ratified on 14 December 2004.
• The ZigBee Alliance announced public availability of Specification 1.0 on 13 June 2005
• Much research is still going on with ZigBee.
ZigBee uses
• It is used for embedded application for low data rates and Low power consumption, In expensive
• Small packet networks• Home Entertainment and Control• Wireless sensor network’s
IEEE 802.15.4 & ZigBee In Context
– “the software”
– Network, Security & Application layers
– Brand management
IEEE 802.15.4– “the hardware”
– Physical & Media Access Control layers
PHY868MHz / 915MHz / 2.4GHz
MAC
NetworkStar / Mesh / Cluster-Tree
Security32- / 64- / 128-bit encryption
Application
API
ZigBeeAlliance
IEEE 802.15.4
Customer
Silicon Stack App
Device types
• Zigbee coordinator• Zigbee router• Zigbee end devices
What Does ZigBee Do?
• Designed for wireless controls and sensors• Operates in Personal Area Networks (PAN’s)
and device-to-device networks• Connectivity between small packet devices• Control of lights, switches, thermostats,
appliances, etc.
Operates in Unlicensed BandsISM 2.4 GHz Global Band at 250kbps868 MHz European Band at 20kbps915 MHz North American Band at 40kbps
ZIGBEE FREQUENCIES
How ZigBee Works
• Topology– Star– Cluster Tree– Mesh
• Network coordinator, routers, end devices
ZigBee Mesh Networking
ZigBee Mesh Networking
ZigBee Mesh Networking
ZigBee features:-
Low duty cycle-provide long batt ery l i fe.
Support for multi ple network topologies: star,mesh.
Upto 65000 nodes on a network.128-bit encrypti on –provide secure
connecti on.Coll is ion avoidance .
Academic Research
Research in ZigBee is being conducted in different fields:
• Wireless and sensor networks• Wireless communications• Neuroengineering
ZigBee and the Market
• The next big thing• Expected to hit the market full force in 2006• Companies have already invested millions
ZigBee Products
• Development Kits• Sensors• Transceivers• Modules
ZigBee’s Future
Any queries