Jinlu Han Ph.D. Student Utah State University CSOIS

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Jinlu Han Ph.D. StudentUtah State
UniversityCSOIS

• Introduction to ZigBee Wireless Sensor Networks

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Contents

• ZigBee Overview
• ZigBee Protocol
• Software and Hardware
• Typical applications

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ZigBee Overview

• ZigBee comes from the honeybees. The
  honeybees dance in the Zig-Zag pattern, sharing
  information such as the location, distance, and
  the amount of a discovered food source to the
  other fellow members.

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ZigBee Overview

• ZigBee is a communication technology for
  wireless networks looking for lower cost, reduced
  protocol simplification, and higher communication
  reliance and quality.
• Power are the batteries. The MCU and the
  transceiver can go into hibernate state. Date
  rate is 250kbps for 2.4GHz radios.

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ZigBee Protocol
ZigBee Alliance organized by Ember,
Emerson, Freescale, Philips, Texas Instruments
and other world famous companies more than 100
totally. ZigBee Alliance united the
company members together to enable reliable,
cost-effective, low-power, monitoring and control
products for the world. The ZigBee
Specification is set up by the ZigBee Alliance.
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ZigBee Protocol
ZigBee Protocol is divided into physical
layer, media access control layer, network layer,
and application layer. Physical layer and media
access control layer protocol is set up by IEEE
802.15.4 group formerly.
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ZigBee Protocol
Star
Tree
Coordinator Router End device
Mesh
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Software
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Software

• The nth end device network address is
  assigned in this way
• 
  
• 
  is the father device address?If
• the maximum son device for a father device
  is C4,the maximum depth of the networks D4,the
  maximum son devices are routers for a father
  device R4,the number of the address assigned by
  the father device is Cnum(S)

Depth S 0 1 2 3
Cnum(S) 21 5 1 0
Thanks to ZigBee Specification
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Software

• Network address distribution

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Hardware

• Most popular ZigBee wireless Sensor boards are
  TI Msp430CC2420, CC2520, Ember EM2420?EM2520,
  and EM2620. Freescale MC13193 MS9S08GT60,
  MC13193ColdFire?MC1320X/1321X serial types. And
  Atmel AVR Z-Link, Jennic JN5139 and RadioPulse
  MG2455.

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Hardware
From http//datasheet.octopart.com/13193EVK-A00-Fr
eescale-Semiconductor-datasheet-98233.pdf
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Hardware
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Hardware

• MMA7260Q connected to MC9S08GT60

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Hardware
TPM175
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Hardware

• Serial port

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Hardware

• PCB antenna

From http//www.freescale.com/zigbee
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Hardware
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Typical applications
ZigBee wireless sensor network has been used to
monitor the energy in daily life, environment in
agriculture, industry, health, military and other
places.
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References

• http//www.freescale.com/zigbee
• 2. http//www.zigbee.org/
• 3. MMA7260Q datasheet
• 4. TPM 175 datasheet
• 5. ZigBee Specification