wk 9 - Smart Dust wireless Network & Applications EE...

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Smart Dust wireless Network Smart Dust wireless Network & Applications & Applications EE 515/415 EE 515/415 D. T. Shaw D. T. Shaw 11/3/09 11/3/09
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http://www.ibioseminars.org/vale/vale1.shtml
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3 Smart Dust Mohammad Rahimi CSCI599-Spring2002
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What is Smart Dust? Cute name for a network of miniscule motes Term “smart” comes from abilities of individual motes as well as overall function of network Term “dust” comes from the goal of packaging a fully functional mote in a 1mm 3 package Project started at the University of California at Berkeley Funded by DARPA (Defense Advanced Research Projects Agency) Most research aimed at military and defense applications
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Vision Think pixie dust - Scatter hundreds of sensors which are nearly un-noticeable The size of a grain of sand complete with sensors, CPU, receiver, transmitter, antenna and a power supply Communication ranges of 1000 ft. or more
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Long Term Goals of Project Autonomous sensing and communications in 1mm 3 Optimize every aspect of WSN Battery life ( several years ~5 ) Size (1mm 3 ) Contains all elements of the mote Range Some sources predict up to 1 km Processing power On board motes In networking messaging Billions of computations requiring only picowatts (10 -12 ) Communications Laser Power Consumption Deployment “Floating” motes UAV deployment
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7 Back to future! Colonies of smart ultra small size network Interaction of advances in 3 technologies Digital Circuits: Process Sensor Data and Communicate Process Sensor Data and Communicate VLSI more condense silicon processing VLSI more silicon speed VLSI low power short range communication MEMS -- MicroElectromechanical Systems Smart dust Wireless Networking Distributed Processing Operating system, Database
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8 Power: Survive for extended amount of time Power: Lithium Battery Big Problem Low capacity per unit of mass and volume Needs support by sleep mechanism and low power techniques Not really so much innovation in recent years Solar Fuel Cells
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9 Computation Computation: ATMEL91M404000 Micro Controller Core and variety of different functions Flash , SRAM , E2PROM GPIO , ADC , PWM ,Comparator Embedded serial Buses Ex: Microcontrollers Atmel , Microchip, Motorola Microprocessors Intel Strong-Arms ,Motorola FPGA FPGA Not Traditional Style Of programming Not Traditional Style Of programming Hardware Descriptive Languages (VHDL, Verilog) Hardware Descriptive Languages (VHDL, Verilog) Faster , Low Power , Reconfigurable Faster , Low Power , Reconfigurable Ex: Ex: Xilix,Atmel Xilix,Atmel
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10 Sensors Motion Sensing Magnetometer Study 3 Element of Earth Magnetic field (Compass) Accelerometer To measure Local vertical (tilt switch) or measure motion vectors Environmental Sensing (Weather Monitoring) Pressure Barometer Temperature Light Humidity
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11 Communication RF radio Optical Passive Active
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Wireless Digital CKTs MEMS
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This note was uploaded on 02/19/2011 for the course EE 515 taught by Professor Dr.shaw during the Fall '10 term at SUNY Buffalo.

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wk 9 - Smart Dust wireless Network & Applications EE...

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