zigbee ppt

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