The document discusses 'smart dust', which consists of tiny electronic devices called motes that use MEMS technology to capture environmental data while floating on air. These motes communicate wirelessly via radio frequency and optical transmission techniques, and have diverse applications in civil and military fields. Challenges include low power consumption and efficient energy use to maximize operational life.

1. SMART DUST
BY
A SATYA KARTHIK
10071A0501

2. CONTENTS






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INTRODUCTION
MEMS TECHNOLOGY
WHAT IS A MOTE?
COMMUNICATION
APPLICATIONS
FUTURE OF SMART DUST
CHALLENGES
CONCLUSION

3. INTRODUCTION

Tiny electronic
devices designed
to capture
mountains of
information about
their surroundings
while literally
floating on air

4. THE MEMS TECHNOLOGY

MEMS is the integration of
mechanical elements, sensors,
actuators and electronics on a
common silicon substrate through
micro fabrication technology

6. MOTES
MOTES
Tiny sensors that can perform a variety
of functions

7. OPERATION OF A MOTE

8. SMART DUST SYSTEM
REQUIREMENTS



Power
Sensor
Communication

9. COMMUNICATION TECHNIQUE


a)
b)
Wireless communication collects
data from thousands of sensors
simultaneously
Various techniques are
Radio Frequency Transmission
Optical Transmission Technique

10. RF TECHNIQUE


Based on the generation,
propagation and detection of
electromagnetic waves
Used to function as both the uplink
and the downlink

11. OPTICAL TRANSMISSION
TECHNIQUE


Free space optic communication
a) Active Optical Communication
b) Passive Optical Communication
Fiber optic communication

12. APPLICATIONS
Civil and military applications

13. VIRTUAL KEYPAD

14. BRIDGES
SKYWRAPPERS

15. EFFICIENT MEDICAL IMPLANTS

18. Wearing temperature, humidity and
environmental comfort sensors sewn into
our clothes.

20. FUTURE OF SMART DUST


Number of research institutions
The future of smart dust lies on both
optical communication and fiberoptic communication.

21. CHALLENGES


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To incorporate all these functions
while maintaining a low power
consumption
Maximizing operating life given the
limited volume for energy storage
The motes must operate efficiently
and conserve energy whenever
possible

22. CONCLUSION
Ongoing
researches on Smart Dust
Smart Dust mote :
As small as possible
Make it available at low price as possible.

23. THANK YOU