1. “ZIGBEE”
BY:
A.RAKESH (08B81A0472)

2. WHAT IS ZIGBEE?
Technological Standard Created for Control and Sensor Networks
Based on the IEEE 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 3

4. WHY ZIGBEE? Reliable Mesh networking Low data-rate applications
Very long battery life
Secure
Scalable
Low cost
Global applicability 4

5. HOW DOES ZIGBEE WORK?
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. Industrial & Commercial
TARGET MARKETS  TV 
Monitors 
VCR
Consumer Electronics 
Sensors
Industrial & Commercial 
DVD 
Automation  CD 
Control 
Remote
PC Peripherals 
Mouse
Low Data Rate Radio Devices
Personal Healthcare 
Keyboard 
Joystick 
Gamepad 
Monitors 
Diagnostics 
Security 
Sensors
Home Automation 
PETs
Toys & Games 
HVAC 
Gameboys 
Lighting 
Educational 
Closures

7. PC And Peripherals
Desktop PCs and Home Entertainment Systems (Home Theatre TV)
Computer peripherals;
HID devices
Video conference equipment
Remote control
Video gaming equipment
Multi-player PC & video games
Remote controls for audio and video equipment 7 7

8. Human Input Devices (HID)
Keyboard
Mouse / Pointing Device
Remote Controls (controls for audio & video equipment)
Gaming device
Double Joystick 8 8

9. PATIENT MONITORING May allow more patient freedom
Monitors vital statistics and sends via internet
Patient can remain in their own home
Lowers cost and improves comfort
Can be used in hospice care
Patients are allowed greater movement
Reduced staff to patient ratio
Light way to bathroom when they get out of bed
Reduces patient confusion
graphic
graphic
1010

10. LIGHTING CONTROL Wireless Lighting Control Dimmable ballasts
Light switches anywhere
Customizable lighting schemes
Energy Saving on bright days 12

12. ZIGBEE VS BLUETOOTH

13. ZIGBEE AND BLUETOOTH Optimized for different applications
Smaller packets over large network
Mostly Static networks with many, infrequently used devices
Home automation, toys, remote controls, etc.
Bluetooth
Larger packets over small network
Ad-hoc networks
File transfer
Screen graphics, pictures, hands-free audio, Mobile phones, headsets, PDAs, etc. 17

14. ZIGBEE AND BLUETOOTH Address Different Needs
Bluetooth is a cable replacement for items like Phones, Laptop Computers, Headsets
Bluetooth expects regular charging
Target is to use <10% of host power 19

15. ZIGBEE AND BLUETOOTH Address Different Needs
ZigBee is better for devices Where the battery is ‘rarely’ replaced
Targets are :
Tiny fraction of host power
New opportunities where wireless not yet used 20

16. ZigBee and Bluetooth CONCLUSION
ZigBee targets applications not addressable by Bluetooth or any other wireless standard
ZigBee and Bluetooth complement for a broader solution 21

17. TOPOLOGY MODELS Mesh Star Hybrid (Cluster Tree)
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 Tree)
PAN coordinator
Full Function Device
Flexibility
Reliability/Range of Mesh
Battery Life of Star
Design Complexity
Reduced Function Device 24

18. ZIGBEE MESH NETWORKING25

19. ZIGBEE MESH NETWORKING26

20. ZIGBEE MESH NETWORKING27

21. ZIGBEE MESH NETWORKING28

22. ZIGBEE MESH NETWORKING29

23. IEEE
IEEE is a standard defined by IEEE for low rate, wireless personal area network.
The standard defines the Physical layer and Medium Access Layer 30

24. IEEE 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 radios operating in the same area will share the airwaves. The MAC supports several architectures, including a star topology, tree topologies and mesh topologies 31

25. THE ZIGBEE PLATFORM
End developer applications, designed using application profiles
ZA1
ZA2 …
ZAn
IA1
IAn
Application interface designed using
general profile
API
UDP IP
Topology management, MAC management, routing, discovery protocol, security management
ZigBee NWK
802.2 LLC
MAC
Channel access, PAN maintenance, reliable data transport
IEEE MAC
IEEE PHY
Transmission & reception on the physical radio channel 32

26. DATA TRANSFER MODEL Coordinator to Device Device to Coordinator
Beacon Enabled Mode
Non-Beacon Enabled Mode 33

27. THE 802 WIRELESS SPACE WWAN IEEE 802.22 IEEE 802.20 WMAN WiMax
Range
WLAN
WiFi
802.11
ZigBee a c
Bluetooth
WPAN
0.01
0.1 1 10
100
1000
Data Rate (Mbps)

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

29. SOME PARTICIPANTS
CompXs

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

31. Parting Thought “Just as the personal computer was a symbol of
the '80s, and the symbol of the '90s is the World
Wide Web, the next nonlinear shift, is going to be
the advent of cheap sensors.”
-Paul Saffo
Institute for the Future

33. Thank you
for
your attention! 41