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TM

ZigBee: Wireless Control Made Simple

Vineet GuptaBtech

Track: ZigBee

ZigBee Wireless Sensor and Control

Made Simple

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Introduction

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ZigBee Home Automation

Technological Standard Created for Wireless Sensor and Control Networks

Based on the IEEE 802.15.4 Standard Created by the ZigBee Alliance ZigBee is an established set of specifications for

wireless personal area networking (WPAN), i.e. digital radio connections between computers and related devices.

WPAN Low Rate or ZigBee provides specifications for devices that have low data rates, consume very low power and are thus characterized by long battery life.

What ZIGBEE is?

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Characteristics of ZigBee

• Maximum data rates allowed for each of these frequency bands are fixed as 250 kbps @2.4 GHz, 40 kbps @ 915 MHz, and 20 kbps @868 MHz.

•  High throughput and low latency for low duty-cycle applications(<0.1%)

•  Channel access using Carrier Sense Multiple Access with Collision Avoidance (CSMA – CA) •  Addressing space of up to 64 bit IEEE address devices, 65,535 networks

•  10 to 100+ meters typical range •  Fully reliable “hand-shaked” data transfer protocol. •  Different topologies as illustrated below: star, peer-to-peer, mesh

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Where Does ZigBee Fit?

Range

Pe

ak

Da

ta R

ate

Closer Farther

Slo

wer

Fas

ter

UWBWireless Data Applications

Sources: WRH + Co

Wireless Video Applications

IrDA

802.11g

802.11b

802.11a

2.5G/3G

Bluetooth™

ZigBee™

Wireless Sensors

Wireless Networking

Wi-Fi®

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Network Architecture

APL ZDO

MAC

PHY

APS

NWK

ZDOManage-

mentSecurity

IEE

E

Zig

Be

e Allia

nceC

usto

me

r

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Types of ZigBee devices1.The ZigBee coordinator node Only one in a network

act as a routerStore the information about the network

2. The full function device FFDIntermediary routerNeeds lesser memory, lesser manufacturing costOperate in all topologies

3. The reduced function device RFD

Talking in the network, cannot relay data from other devicesLess memory, cheaperTalks only with coordinator, Star topology

1.The ZigBee coordinator node Only one in a network

act as a routerStore the information about the network

2. The full function device FFDIntermediary routerNeeds lesser memory, lesser manufacturing costOperate in all topologies

3. The reduced function device RFD

Talking in the network, cannot relay data from other devicesLess memory, cheaperTalks only with coordinator, Star topology

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Network Topology Models

STARTOPOLOGY MESH TOPOLOGY CLUSTER TREE

TOPOLOGY

PAN COORDINATOR

FULL FUNCTION DEVICE

REDUCED FUNCTION DEVICE

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How A ZigBee Network Forms

•Network Scan

•Creating/Joining a PAN

•Device Discovery

•Service Discovery

•Binding

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ZigBee Networking

ZIGBEE END DEVICE (FFD/RFD)ZIGBEE ROUTER

ZIGBEE COORDINATOR

MESH LINK

STAR LINK

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Traffic Type

1.Data is periodic.Application dictates the rate

2.Data is intermittent.Application or other stimulus determines the rate

3.Data is repetitive The rate is fixed priori

1.Data is periodic.Application dictates the rate

2.Data is intermittent.Application or other stimulus determines the rate

3.Data is repetitive The rate is fixed priori

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Data Transfer Mode

Beacon Enabled PAN In Non-Beacon Enabled PAN

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Security

•Access Control

•Data encryption

•Frame integrity

•Sequential freshness

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ZigBee Wireless Markets and Applications

BUILDING AUTOMATION

Security, HVAC,AMR,

Lighting Control, Access Control

CONSUMER ELECTRONICS

Remote Control

PERSONAL HEALTH CARE

Patient monitoring

INDUSTRIALCONTROL

Asset Mgt, Process Control,

Energy Mgt

HOME AUTOMATION

Security, HVAC,Lighting Control,Access Control

REMOTE CONTROL

PC & PERIPHERALS

Mouse, Keyboard,Joystick

TELE-COMMUNICATION

SERVICES

SMART ENERGY

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Thank You

Questions