Porous Silicon is etched by electrochemical Machining Process, which are used as concentrators what is analyzed. The Silicon is chemically modified into a sensor Reflective & chemically modified mirrors are nano-structured into sensor to reflect a certain color when target is identified. Sensors are oxidized making it hydrophobic Sensors are broken into SMART DUST!!!
Motes can also be categorised based on how they work: (A) Data collection • Wake up shortly to collect and transmit sensor data • Remain in sleep phase the rest of the time (B) Event detection • Monitoring their surroundings for random and ephemeral events all the time • Wake up/Sleep procedure not applicable • Motes can be shut down only partially while monitoring for events
Monitor speed and Volume of traffic to avoid recurring traffic jams u change the heading from IT sector to:-Commercial Application in IT Sector• Inkjet printers, which use piezoelectrics or thermal bubble ejection to deposit ink on paper. • Accelerometers in modern cars for a large number of purposes including airbag deployment in collisions. • MEMS microphones in portable devices, e.g., mobile phones, head sets and laptops.• Optical switching technology, which is used for switching technology and alignment for data communications • Fluid acceleration such as for micro-cooling.
Relay information about cancerous cells Enter human bodies and check for physiological problems
-&gt;To detect earthquakes, forest fires, etc. -&gt;Used in street lights, etc to conserve Energy -&gt;Also to keep the check on the carbon dioxide emission. -&gt;Also help in building energy efficient buildings.
It is difficult to fit all these devices in a small Smart Dust both size wise and Energy wise. With devices so small, batteries present a massive addition of weight. Relatively high power consumption . Thus can be used only for a short duration burst-mode communication. Components like active beam-steering mechanism makes the design of the dust mote more complicated.
Design of multi hop network Autonomous network configuration Data Fusion Network Decision making Large Scale Distribu The missions considered in this project involve autonomous sensors that might be deployed from a helicopter over a battlefield or from a space probe over a planetary surface. Once deployed, the sensor network must operate autonomously using an ad-hoc wireless infrastructure as sensors are deployed or destroyed or the network is damaged or compromised and then repaired. Appropriate algorithms and protocols must be developed to facilitate automatic, quasi-optimal configuration of sensor applications in response to network damage and repair and without requiring external management intervention.ted Processing
There are many ongoing researches on Smart Dust, the main purpose will to make mote as small as possible and to make it available at a low price. Soon we will see smart dust being used in varied application from all spans of life!
Smart Dust - A Little Wonder
Smart Dust(Tiny sensors)- The Little
"Smart dust" devices are tiny wireless
microelectromechanical 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.
For the next disruptive technology: think dust.
No, not small grains of sand, soot or dirt but
similarly sized particles that have a brain.
Transmits information like temperature,
humidity, light ,vibrations, surface pressures, etc.
Smart sensors relay signals back to a command
The motes' hardware platform uses
Processor(MPR). These are battery-powered
devices where MTS (sensors) and MDA (data card
sensors) work directly with the Mote Processor.
Smart Dust is a network of ‘motes’, identical or
similar tiny computers consisting of four
Micro-Electro-Mechanical Systems (MEMS) is the
integration of mechanical elements, sensors,
actuators, and electronics on a common silicon
While the electronics are fabricated using
integrated circuit (IC) the micro mechanical
components are fabricated using compatible
A wireless communication system is required
for sending and receiving data with data
transfer rate of 1 Kbps.
The devices for communication are subjected
to size and power constraints.
It must support bi-directional
communication between a central transceiver
and up to 1000 dust motes.
•High power laser source
•Transmission of modulated laser
•MEMS Corner Cube Reflector
•Emit modulated ambient light
•Extremely low power
containing Smart Dust
• MEMS microphones in
• Monitor speed and
Volume of traffic to avoid
recurring traffic jams.
• Also used in modern
cars for a large number
of purposes including
airbag deployment in
• The motes used for
defense purpose of
consists of magnetometer,
a vibration sensor and a
• Spread on the battlefield
by moving vehicles or
soldiers with modified
• Also used to monitor
critical parts of aircrafts
and other war vehicles.
• Enter human bodies and check for physiological
• Relay information about cancerous cells.
•Doctors will be able to monitor health status and
curing situations of patients through smart dust.
•Surgery will be more and more efficient and
reliable as it will provide an extra arm for surgeons
in their daily duties.
• Biomedical application – Artificial Retina.
• In Environment
• Detect hazardous
nature of animals.
• Relative high power consumption.
• Hence can be used only for a short
duration of time.
• Components like active beam-steering
mechanism makes the design of the dust
mote more complicated.
• It is difficult to fit all the components in a
small Smart dust both in terms of Size and
•With devices so small, batteries used
present a massive addition of weight into it.
• ‘Smart dust’ is receiving huge investment around the
world and it could be used to create a safer and more
efficient food and agriculture system.
• Smart Dust’s development, use, and employment in the
future, further research is necessary, specifically in the
areas of intelligence analysis and dependence.
• Social aspects- it can help in saving a lot of loss of power
in light and climatic control of building.
• Large Scale Processing & Distribution.
• To bring multi-hop network topology.
• Data Fusion.
• Autonomous Network
• Researches on reducing
the size and weight of the
latest generation motes.
• Trying to make it so light that it flows on with
the direction of air.
Many ongoing researchers on the Smart
Dust Project are working on to make the
size of the present latest generation mote
as small as possible and to make it
available at a low price.
And then soon we will see Smart DustSmart Dust
being used in various application of life
Leading the present world to a
Smarter WorldSmarter World.