Zigbee is a wireless networking standard for low-power devices that operate within short ranges. It uses small, low-cost transceivers in wireless ad-hoc networks to connect various devices together to form smart networks for applications like home automation, lighting control, and patient monitoring. Zigbee networks are self-organizing, reliable, and can transmit data over long distances by passing data through intermediate devices. This makes Zigbee well-suited for applications requiring long battery life, secure networking, and scalability.

1. BY:
CH.Lakshmi ram
Soumyajit dhal

2. WHAT IS ZIGBEE?
• Technological Standard Created for Control
and Sensor Networks
• Based on the IEEE 802.15.4 Standard
• Created by the ZigBee Alliance

3. SENSOR/CONTROL NETWORK
REQUIREMENTS
• Large networks (large number of devices and
large coverage area) that can form autonomously
and that will operate very reliably for years
without any operator intervention
• Very long battery life (years off of a AA cell), very
low infrastructure cost (low device & setup costs)
and very low complexity and small size
• Device data rate and QoS needs are low
• Standardized protocols are necessary to allow
multiple vendors to interoperate
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4. WHY ZIGBEE?
• Reliable
• Mesh networking
• Low data-rate applications
• Very long battery life
• Secure
• Scalable
• Low cost
• Global applicability
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5. ZIGBEE IS FROM?
• Engineers feel Wi-Fi and Bluetooth may be
unsuitable. This spawned the idea of digital radio
networks via direct-sequence spread spectrum
coding.
• ZigBee-compliant radios may operate on one of
three different radio bands: the 800 MHz, 900
MHz, or 2.4 GHz frequencies.
• Follows the internationally recognized radio
standard for the MAC and PHY Layer.

6. TARGET MARKETS
 TV
 Monitors  VCR
 Sensor Consumer  DVD
Industrial &
s Electronics
 Automation Commercial  CD
 Control  Remote
PC Peripherals
 Mouse
Low Data Rate
Personal  Keyboard
Radio Devices
Healthcare  Joystick
 Gamepad
 Monitors
 Diagnostic
 s
Sensor Home  Security
Toys &  PETs  HVAC
s  Gameboy Automation
Games  Lighting
 s
Educationa  Closure
l s

7. PC And Peripherals
• Desktop PCs and Home Entertainment Systems (Home
Theatre TV)
o Computer peripherals;
o HID devices
• Video conference equipment
o Remote control
• Video gaming equipment
o Multi-player PC & video games
o Remote controls for audio and video equipment
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8. Human Input Devices (HID)
• Keyboard
• Mouse / Pointing Device
• Remote Controls (controls for audio & video
equipment)
• Gaming device
• Double Joystick
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9. PATIENT MONITORING
• May allow more patient freedom
o Monitors vital statistics and sends via
graphic
internet
 Patient can remain in their own home
 Lowers cost and improves comfort
o Can be used in hospice care
 Patients are allowed greater
movement
 Reduced staff to patient ratio
 Light way to bathroom when they get graphic
out of bed
 Reduces patient confusion
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10. LIGHTING CONTROL
• Wireless Lighting
Control
o Dimmable ballasts
o Light switches
anywhere
o Customizable lighting
schemes
o Energy Saving on
bright days
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12. ZIGBEE VS
BLUETOOTH

13. ZIGBEE AND BLUETOOTH
Optimized for different applications
• ZigBee • Bluetooth
o Smaller packets over large o Larger packets over small network
network o Ad-hoc networks
o Mostly Static networks with o File transfer
many, infrequently used o Screen graphics, pictures, hands-
devices free audio, Mobile phones,
o Home automation, toys, headsets, PDAs, etc.
remote controls, etc.
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14. WIRELESS TECHNOLOGY COMPARISON
CHART
Standard Bandwidth Protocol Stack Stronghold Applications
Size
ZigBee 250kbps 4-32KB Long battery life, Remote control,
low cost battery-operated
products, sensors
Bluetooth 1 Mbps ~100+KB Interoperability, Wireless USB,
cable handset, headset
replacement
Wi-Fi Up to 54Mbps 100+KB High data range Internet browsing,
PC networking, file
transfers

15. ZIGBEE AND BLUETOOTH
Address Different Needs
• Bluetooth is a cable
replacement for items
like Phones, Laptop
Computers, Headsets
• Bluetooth expects
regular charging
o Target is to use
<10% of host power
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16. ZIGBEE AND BLUETOOTH
Address Different Needs
• ZigBee is better for devices
Where the battery is ‘rarely’
replaced
o Targets are :
 Tiny fraction of host
power
 New opportunities where
wireless not yet used
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17. ZigBee and Bluetooth
CONCLUSION
• ZigBee targets applications not addressable by
Bluetooth or any other wireless standard
• ZigBee and Bluetooth complement for a broader
solution
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18. TOPOLOGY MODELS
• Allows users to balance system cost, reliability & battery life
Mesh
• Reliability
• Extended Range
• No Battery Life
• Routing
Complexity
Star
• Simplicity
• Low Cost
• Long Battery Life
• Single Point of
Failure
Hybrid (Cluster PAN coordinator
Tree)• Flexibility Full Function
• Reliability/Range of Device Function
Reduced
Mesh
• Battery Life of Star Device
24 • Design Complexity

19. ZIGBEE MESH NETWORKING
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20. ZIGBEE MESH NETWORKING
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21. ZIGBEE MESH NETWORKING
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22. ZIGBEE MESH NETWORKING
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23. ZIGBEE MESH NETWORKING
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24. IEEE 802.15.4
• IEEE 802.15.4 is a standard defined by IEEE for
low rate, wireless personal area network.
• The standard defines the Physical layer and
Medium Access Layer
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25. IEEE 802.15.4 CONTINUED
• PHY- It defines low power spread spectrum radio
operating at 2.4 GHz with a basic data rate of 250
kbps
• MAC -defines how multiple 802.15.4 radios
operating in the same area will share the airwaves.
The MAC supports several architectures, including
a star topology, tree topologies and mesh
topologies
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26. THE ZIGBEE PLATFORM
End developer applications,
designed using application ZA1 ZA2 … ZAn IA1 IAn
profiles
Application interface designed API UDP
using
general profile IP
Topology management, MAC
management, routing, discovery ZigBee NWK 802.2 LLC
protocol, security management MAC
Channel access, PAN maintenance,
reliable data transport IEEE 802.15.4 MAC
IEEE 802.15.4 PHY
Transmission & reception on the
physical radio channel
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27. DATA TRANSFER MODEL
Coordinator to Device Device to Coordinator
Beacon Enabled
Mode
Non-Beacon Enabled
Mode
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28. THE 802 WIRELESS SPACE
WWAN IEEE 802.22
IEEE 802.20
WMAN
WiMax
Ra IEEE 802.16
ng
e WLAN WiFi
ZigBee 802.11
802.15.4 Bluetoot
802.15.3
WPAN 802.15.3a
h 802.15.3c
802.15.1
0.01 0.1 1 10 100 1000
Data Rate
(Mbps)

29. PROS AND CONS
Pros Cons
• good extension of existing • Not many end devices
standards available yet
• supported by many • Single point of failure
companies (centralized architecture)
• low power consumption
• low cost
• easy implemented (Designer
concentrates on end
application)
• flexible network structure

30. SOME PARTICIPANTS
CompXs

31. ZIGBEE ALLIANCE - MEMBERS
and many more....

33. Thank you
for
your attention!
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