Smart dust is a tiny dust size device with extra-ordinary capabilities. Smart dust combines sensing, computing, wireless communication
capabilities. smart dust applications and smart dust core architecture | free ppt download
× What is Smart Dust ?
× How its work ?
× History of smart dust.
× Smart Dust Mote
× Smart Dust Components
× Measurement , characteristic, & working of smart dust
× Communication with Smart Dust
Smart dust is a tiny dust size device with extra-ordinary capabilities.
Smart dust combines sensing, computing, wireless communication
Have power supply within volume of only few millimeters and that too
at low cost.
These devices are proposed to be so small and light in weight that they
can remain suspended in the environment like an ordinary dust particle.What is Smart Dust ?
"Smart dust" devices are tiny wireless micro electro
mechanical sensors (MEMS) that can detect everything
from light to vibrations.
Nodes in Smart Dust are called Motes.
These "motes" contain sensors, computing circuits,
bidirectional wireless communications technology and a
power supply integrated on a tiny dust size-device.History of Smart Dust
× Smart dust was invented in 2001 by Kristopher S. J. Pister, who is an electrical
engineering and computer science professor for the University of California
× The DARPA (NASA) has been funding Smart Dust research heavily seeing
virtually limitless applications in the sphere of modern warfare.
× Kristofer S. J. PisterMote & its operation
Smart dust device is run by
It read the data coming
from sensors and stores in
SRAM.Operation of mote
The microcontroller will use the corner cube retro reflector (ccr) or
laser to transmit sensor data or a message to a base station or another
This allows the user to change the behavior of the mote remotely.
The laser diode contains the onboard laser which sends signals to the
base station by blinking on and off.
The corner cube retro reflector, transmits information just by moving
a mirror and thus changing the reflection of a laser beam from the
base station.Making of Smart Dust
A single Smart Dust mote has:
× A semiconductor laser diode and MEMS beam
steering mirror for active optical transmission.
× A MEMS corner cube retro-reflector for passive
× An optical receiver.
× A signal processing and control circuitry.
× A power source based on thick-film batteries and
solar cells.Architecture Smart dust componentMeasurement of Smart Dust
These are made by “Hitachi”.
They measure only
“.15 × .15” mm each and have
Sometimes called “smart
dust” as they can be sprayed
on us and absorbed or taken
in foods, drinks and even
injected.Working of Smart Dust
× Primary constraint of smart dust
× Most of the time mote if off with
only timers running.
× Run by microcontroller.
× Determines the task performed
by the mote.
× Controls power.
× When a timer expires, it powers
mote to carry out a job, then
powers off. Smart Dust Device
.Characteristics of Smart Dust
It has one week
functionality it has
It has 20 meter
continuous Current motes are
radio, the communication
operation, 2 years about 5mm
with 1% duty
controller, and the
battery.Key Features of these electronic particles
- Survive for extended amount of time
Process Sensor Data and Communicate
- To Interface to the environment
- To glue the pieces of informationPower
- Big Problem
- Low capacity per
unit of mass and
- Not really so
• -Core and variety of different functions
• -Flash , SRAM , E2PROM
• -GPIO , ADC , PWM ,Comparator
• -Embedded serial Buses
• -Ex: Microcontrollers Atmel , Microchip,
Microprocessors Intel Strong-Arms
• Not Traditional Style Of programming
• Hardware Descriptive Languages
• Faster, Low Power, Reconfigurable
• Ex: Xilix, AtmelSENSOR
- HumidityCommunication Technologies
Radio Frequency Optical transmission
a) Passive Laser
b) Active Laser
c) Fiber Optic