Download - Power Conditioning
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Group Members: Steven Paradise, Patrick Schindler, Dr. Behrouz Farhang, Arslan Majid, Chril Miller, David Brown, and Joshua Hamilton
By Joshua Hamilton
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Reasoning: Advanced detection functions require
powerZero false positivesNo unauthorized access
Cannot be powered externally Safe must stay secure until maintenance
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Requirements of power source Necessary 1 year lifespan with a goal of 2 Cannot be tampered Power detection sensors Safely power the Arduino controller Dependable
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Method Modes of operation Wake up sensors
Self powered vibration sensors Low power design
Efficient overall designNo leakage
Fig. 1 Piezoelectric vibration sensor [4]
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Implementation Arduino Mega vs Arduino Pro-Mini Piezoelectric wake-up circuit Choice of battery
Lithium has highest power density Sensitive to high temperatureMay need a controller
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Conclusion Test two types of batteries
Arduino backpackEnergizer e2 AA batteries
Fig. 2 Arduino backpack [1]
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Contact Information: Joshua Hamilton ECE Department, University of Utah [email protected]
Sources: [1] “Lithium Backpack”, Apr. 8, 2010. [Online]. Available:http://www.liquidware.com/shop/show/BP/Lithium+Backpack[2] “E2 Datasheet”, Apr. 8, 2010. [Online]. Available:http://Energizer-L91BP-8-Lithium-Battery-8-Pack/dp/B0000DC4EL[3] “Arduino Pro Mini”, Apr. 8, 2010. [Online]. Available:http://www.sparkfun.com/commerce/product_info.php?products_id=9220[4] “Vibration Sensor/Switch” ,Apr. 8, 2010. [Online]Available:http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=MSP1007-ND