ZigBee

What is ZigBee?

Technological Standard Created for Control and Sensor Networks

Based on the IEEE 802.15.4 Standard Created by the ZigBee Alliance

IEEE 802.15.4 & ZigBee In Context

The 802 Wireless Space

ZigBee and Other Wireless Technologies  ZigBee Wi-Fi Bluetooth

Range 10-100 meters 50-100 meters 10 – 100 meters

Networking Topology Ad-hoc, peer to peer, star, or mesh

Point to hub Ad-hoc, very small networks

Operating Frequency 868 MHz (Europe)900-928 MHz (NA), 2.4 GHz (worldwide)

2.4 and 5 GHz 2.4 GHz

Complexity (Device and application impact)

Low High High

Power Consumption (Battery option and life)

Very low (low power is a design goal)

High Medium

Typical Applications Industrial control and monitoring, sensor networks, building automation, home control and automation, toys, games

Wireless LAN connectivity, broadband Internet access

Wireless connectivity between devices such as phones, PDA, laptops, headsets

ZigBee Aims Low

Low data rateLow power consumptionSmall packet devices

ZigBee Frequencies

Operates in Unlicensed BandsISM 2.4 GHz Global Band at 250kbps868 MHz European Band at 20kbps915 MHz North American Band at 40kbps

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, appliances, etc.

Lights and Switches

How ZigBee Works

Topology Star Mesh

Network coordinator, routers, end devices

How ZigBee Works

States of operation Active Sleep

Devices Full Function Devices (FFD’s) Reduced Function Devices (RFD’s)

Modes of operation Beacon Non-beacon

ZigBee Mesh Networking

ZigBee Mesh Networking

ZigBee Mesh Networking

ZigBee Mesh Networking

ZigBee Mesh Networking

Introduction

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.

Academic Research

Research in ZigBee is being conducted in different fields:

Wireless and sensor networksWireless communications

ZigBee and the Market

The next big thingCompanies have already invested millions

ZigBee Products

Development KitsSensorsTransceiversModules

Current ZigBee Uses

Environmental MonitoringHome Automation Still on Horizon

Product Applications

Road map products-tracking

PC

Commercial and residential control

ZigBee Network Configuration

WHY BLUETOOTH NEED MORE POWER

Typically Bluetooth has more power consumption than Zigbee.The reason why Bluetooth has more power consumption is Bluetooth communicates with other device while maintaining connection.So Bluetooth needs continuous power consumption.

But Zigbee makes connection when connection is needed.The lighting does not need continues data communication. Its communication occurs intermittently.So Zigbee is more suitable for lighting application. It needs less power consumption.

THANX