By Christy Esther S 10MBE0005.  Tiny, wireless sensors (or) motes.  Kris Pister and Randy,1998 (UC BERKELEY)  Smart sand.

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Presentation transcript:

by Christy Esther S 10MBE0005

 Tiny, wireless sensors (or) motes.  Kris Pister and Randy,1998 (UC BERKELEY)  Smart sand

 Size of a pin head- monitors all types of physical quantities such as: - Temperature - Humidity -Motion -Light Levels -Pollution etc

Block Diagram

This Integrates  Transducers  Processors  Memory  Solar powered Batteries  Communication Interfaces on a single micro miniscule chip.  Made possible through MEMS technology

Distributed sensor network  Consists of a Network backbone on which many nodes reside  Nodes are classified as Sensor nodes Controller nodes Smart Mesh:-

 Like a Personal health monitor (PDA), receives and analyzes data from a number of sensors (eg: ECG, EMG, blood pressure, pulseoxymeter)  Glucose level Monitors  Cancer detectors and general health monitors  Tracking and monitoring of doctors and patients inside the hospitals

Put " motes "on a quadriplegic's face, to monitor, blinking & facial twitches and send them as commands to a wheelchair/computer.

Advantages over traditional sensors  Size very small!  Low cost  Distributed measurements possible Disadvantages  Privacy going public- privacy laws  Environmental impacts-inhaling sensors

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