This document discusses Zigbee and its role in wireless sensor networks. It begins by describing how sensors have evolved from simple devices without computation or communication abilities, to sensor nodes that can process data and communicate wirelessly. It then introduces Zigbee as an important wireless communication standard developed for low data rate applications requiring long battery life. The document explains that Zigbee targets applications in areas like smart energy meters and home automation due to its low power consumption and cost. It compares Zigbee to other wireless standards like Bluetooth and Wi-Fi, noting that Zigbee is best suited for simple sensor applications. Examples of commercial Zigbee products are also provided.

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2. Traditional Sensing Method
 Sensors do not have computation ability
 Sensors do not communicate

3. Current Sensing Method
 Now, sensors become sensor nodes
 Nodes process information and
communicate it wirelessly
CPU
collected
information
Power Supply
Sensor Communication

4. Example of Sensor Nodes
Mica-Z TI-Development Kit Eko-Pro Environment
monitor
Jennic Sensor nodes Xbee-pro

5. An Important Standard
 Zigbee Standard
 Developed by the
ZigBee Alliance, found
2002
 Hundreds of member
companies, from the se
miconductor industry an
d software developers to
original equipment man
ufacturers (OEMs) and i
nstallers.

6. What is Zigbee?
 Zigbee
 ZigBee is a standard that defines a set of communication
protocols for low-data-rate short-range wireless networking.
 ZigBee-based wireless devices operate in 868 MHz, 915 MHz,
and 2.4 GHz frequency bands.
 The maximum data rate is 250 K bits per second.
 ZigBee is targeted mainly for battery-powered applications
where low data rate, low cost, and long battery life are main req
uirements.

7. ZigBee, Bluetooth and WLAN
 IEEE 802.11 (WLAN) has a high data rate, and
providing a wireless Internet connection is one
of its typical applications.
 Bluetooth has a lower data rate (less than 3
Mbps). One popular application of Bluetooth is i
n wireless headsets.
 ZigBee has the lowest data rate and complexity
among these three standards and provides signifi
cantly longer battery life.

8. ZigBee, Bluetooth and IEEE
802.11 (WLAN)
 If the goal of wireless communication is to transmit and receive
simple commands and/or gather information from sensors such
as temperature or humidity sensors
 ZigBee provides the most power and the most cost-efficient
solution compared to Bluetooth and IEEE 802.11b.

9. Where are Zigbee Targeted?

10. ZigBee in the News
 ZigBee Smart Energy is first open standard endorsed by
ESMIG for Smart Metering across Europe
 ZigBee offers Smart Energy to IEC as basis for an IEC
HAN & Smart Metering Standard
 ZigBee developing an IP stack for use with Smart Energy
based on IETF RFCs.
 ZigBee Green Power enhancement being added to the
ZigBee/ZigBee PRO stack
 ZigBee Alliance and Demand Response & Smart Grid
Coalition (DRSG) establish a liaison
 ZigBee RF4CE specification & Technology Paper for
public down load
 ZigBee and Continua Health Alliance signed liaison
agreement to support
the deployment of ZigBee Health Care based products in
the market
 Kroger, one of the largest retail company in the US,
joints ZigBee’s BoD
 ZigBee and SAE created a liaison to focus on solutions to
address the
advent of sales of PEVs

11. Zigbee Products
Advanced AlertMe Intruder Alarm
Metering service SmartCode Deadbolt
Infrastructure
(AMI)
The Home Controller In-home display ZigBee-GSM gateway
Zigbee Smart Energy

12. NTC-KKU- Lab
 Support zigbee-based softwares
 Wireless data logger
 Indoor Location Tracking
 Support zigbee-based prototypes
 Magnetic Sensor for vehicle detection
 Next, KKU-Sensor node
 Expected year 2553

13. ZigBee and IEEE 802.15.4 Standards
 IEEE 802.15.4 defines the specifications for PHY and
MAC layers of wireless networking, but it does not specify
any requirements for higher networking layers.

14. IEEE 802.15.4 Standard
Requirement
IEEE 802.15.4 Standard การทดสอบโดย N4010A + VSA
Transmitter Test Cases
หัวข้อที่ 6.5.3.1 Spectrum PSD Mask
หัวข้อที่ 6.7.3 Error-Vector Magnitude (EVM)
หัวข้อที่ 6.7.4 Center Frequency Tolerance
หัวข้อที่ 6.7.5 Output Power (Power Rise/Fall)
Receiver Test Cases
หัวข้อที่ 6.5.3.3 Rx Sensitivity
หัวข้อที่ 6.7.6 Max Input Level
หัวข้อที่ 6.7.7 Energy Detect
หัวข้อที่ 6.7.8 Link Quality Indication
หัวข้อที่ 6.7.9 Clear Channel Assessment
Transeceiver Test Cases
หัวข้อที่ 6.7.1 Tx-Rx Turnround
หัวข้อที่ 6.7.2 Rx-Tx Turnround

15. Zigbee Testing Support
 Providing Zigbee test
solutions as specified in
IEEE 802.15.4 standard

16. The End
Question/Answer