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smartsmart dustdust
Presented byPresented by
vinayvinay kumarkumar reddyreddy aa
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WHAT·S SMART DUST
Smart Dust is a tiny dust size device with
extraordinary capabilities.
First developed by professor Kris Pister at theUniversity of California, Berkeley
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US Military using Hi tech fairy dust to track insurgents.
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MOTES
They are tiny particles which will be around thesize of a grain of sand
Single mote consists semiconductor diode, memsbeem steering, mems ccr, signal procesing,control circuitry, power supply.
A network of these motes leads to SMART DUSTproject
Can communicate with a base station or with
other motes depending on the application
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B ASE STATION TRANSCEIVER
It is used to retrieve the data stored by the motes
It consists of a laser source and a receiver
Enables communication with the motes
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C OMP ONENTS
Sensors
Corner Cube Retro-reflector (Passive
Transmitter)
Active Transmitter Photo detector
Solar cell, DSP, Analog I/O, Power Capacitor,
Thick Film Battery
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I MPLEMENTATI ON
Sensors monitors the atmosphere
Communication can be of two types:
1. RF TX
2. OPTICAL TX
* Active Communication
* Passive Communication
* OFC
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Free Space Optical Network
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AC TIVE C OMMUNI C ATI ON
It consists of an onboard laser, collimating lens,
beam steering mirror
Active Communication can be used for mote-to-
mote communication if required High power Density but high power consumption
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P ASSIVE C OMMUNI C ATI ON
Corner Cube Retro-Reflector
Base Station with a Receiver
and a laser source
Enables Bi-directional Communication but not
peer to peer
Uninterrupted Line of Sight required
Fig.3 Corner-Cube Retro-reflector (CCR)
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FIBER-OPTIC COMMUNICATION:
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I MPLEMENTATI ON ( C ONT D « )
It consists of a photo detector in order to detect
the signal and receive it
The DSP (digital signal processor) is used to
process signals received.
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POWER
It consists of a lithium battery
Key constraint in the design of a mote
The battery and Capacitor can store
upto1J/cubic mm and 10mJ/ cubic mm
It contains a timer which monitors the operationof a mote
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APPLICATIONS
Military Applications
Medical Applications
Climate monitoring
Virtual Keyboard
Structure Maintenance
Circulatory Net
Monitor speed and Volume of traffic
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AADVANTAGESDVANTAGES
Good Functionality
Small Size
Better Connectivity Low Cost
DISDISADVANTAGESADVANTAGES
Environmental Impact
Unpleasant, but not very likely.
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CONCLUSION
Suitable toVarious Fields
Overcome Limitations
Extent of miniaturization
Nano-T echnology
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REFERENCES
www.smartdust.gatech.edu
www.wearable
.gatech
.edu
www.wikipedia.org/wiki/smartsensors
http://www-bsac.eecs.berkeley.edu/~warneke/SmartDust
www.ieee.org
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QUIRIES
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T hank you
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