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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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