Presentation on theme: "SMART DUST - the Power of Pc in a Speck of Dust. TOPICS COVERED: ABOUT SMART DUST GOALS CONSTRUCTION OPERATION OF MOTE APPLICATIONS ON THE DARKER SIDE."— Presentation transcript:
SMART DUST - the Power of Pc in a Speck of Dust
TOPICS COVERED: ABOUT SMART DUST GOALS CONSTRUCTION OPERATION OF MOTE APPLICATIONS ON THE DARKER SIDE BIBLIOGRAPHY
ABOUT SMART DUST: Father of smart dust: Kris Pister Based on MEMS: Micro-Electro-Mechanical System
GOALS: To build a self-contained, millimeter-scale sensing and communication platform for a massively distributed sensor network. Will contain sensors, computational ability, bi-directional wireless communications, and a power supply, while being inexpensive enough to deploy by the hundreds.
CONSTRUCTION: Porous silicon chip One side: etched to make hydrophobic Other side: hydrophilic Break chip using vibrations like ultrasound
Construction contd. When added to water, dust aligns with –phylic side When oil droplets enter the pores of -phobic side, color changes Degree of color change depends on identity of insoluble substance
S-dust around hydrophobic liquid in water
OPERATION OF MOTE: Run by microcontroller Determines tasks of mote Controls power to conserve energy Volume: key constraint Batteries / Solar cells Gets reading from sensor periodically Optical receiver Respond by CCR
CCR Corner cube retroreflector Built using MEMS: Micro-Electro- Mechanical Systems Placing 3 mirrors at right angles to each other to form corner of box which has been silvered inside Reflects light back to sending position By modulating position of mirrors, beams can be modulated
APPLICATIONS: Defense-related sensor networks Dangerous for human Virtual keyboards Accelerometers with a MEMS augmented-reality heads-up display, invisible computer I/O Product quality monitoring temperature, humidity monitoring of meat, produce, dairy products impact, vibration, temp monitoring of consumer electronics
Applications contd. Smart office spaces environmental conditions are tailored to the desires of every individual Interfaces for the Disabled to monitor blinking & facial twitches - and send them as commands Inventory Control
ON THE DARKER SIDE: PRIVACY????????
CONCLUSION: It’s the power of PC, in a speck of dust.