1. ZIGBEE TECHNOLOGY
Hardeep Singh
Under the guidance of: Roll No.-123
abc School of Electronics & communication engineering
Lovely Professional University Phagwara, Punjab-144401
2. The ZigBee Name
•Named for erratic, zigzagging patterns of
bees between flowers
•Symbolizes communication between nodes in
a mesh network
•Network components analogous to queen
bee, drones, worker bees
3. What is ZigBee?
•Technological Standard Created for
Control and Sensor Networks
•Based on the IEEE 802.15.4 Standard
•Created by the ZigBee Alliance
4. Research on Zigbee
•The IEEE standard 802.15.4 was completed in
May 2003.
•The zigbee specifications were ratified on 14
December 2004.
•The zigbee alliance announced public availability
on 13 June 2005.
•Much research is still going on with zigbee.
5. Sensor/Control Network Requirements
1.Large networks that can form autonomously
and that will operate very reliably for years.
2.Very long battery life.
3.Very low infrastructure cost
4.Less complexity and small size
5.Device data rate are low
7. How Does Zigbee Work?
1.It works on digital radio networks via direct-
sequence spread spectrum coding.
2.Operate on ISM band.
3.ZigBee-compliant radios may operate on one of
three different radio bands: the 868 MHz,2.4GHz or
5.8 GHz frequencies.
8. Zigbee - Network
There are three logical device types in a ZigBee
network –
(i) Coordinator
(ii) Router and
(iii) End-device.
9. Zigbee – Network(cont.)
(i) Coordinator
• This is the device that “starts” a ZigBee network.
• It is the first device on the network.
• The coordinator node chooses a channel and a
network identifier and then starts the network.
11. Zigbee – Network(cont.)
(iii) End Device
• An end-device has no specific responsibility for
maintaining the network infrastructure, so it can
sleep and wake up as it is chosen.
• Generally, the memory requirements are lower
for an end-device.
18. 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 cable replacement Wireless USB,
handset, headset
Wi-Fi Up to 54Mbps 100+KB High data range Internet browsing, PC
networking, file
transfers
19. Target Markets
TV
Monitors DVD
Consumer
Sensors Industrial & CD
Automation Electronics Remote
Commercial
Control
PC
Peripherals
Mouse
Low Data Rate
Personal Keyboard
Radio Devices Joystick
Healthcare
Gamepad
Monitors
Diagnostics
Sensors Home
Home Security
Toys & Automation HVAC
LAN Games Automation
Games Lighting
Closures
22. Conclusion
In future all devices and their controls will be
based on this standard.
Since Wireless personal Area Networking
applies not only to household devices, but
also to individualized office automation
applications, ZigBee is here to stay. It is more
than likely the basis of future home
networking solutions………
23. 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
