group members: steven paradise, patrick schindler, dr. behrouz farhang, arslan majid, chril miller,...
TRANSCRIPT
Group Members: Steven Paradise, Patrick Schindler, Dr. Behrouz Farhang, Arslan Majid, Chril Miller, David Brown, and Joshua Hamilton
By Joshua Hamilton
Reasoning: Advanced detection functions require
powerZero false positivesNo unauthorized access
Cannot be powered externally Safe must stay secure until maintenance
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
Method Modes of operation Wake up sensors
Self powered vibration sensors Low power design
Efficient overall designNo leakage
Fig. 1 Piezoelectric vibration sensor [4]
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
Conclusion Test two types of batteries
Arduino backpackEnergizer e2 AA batteries
Fig. 2 Arduino backpack [1]
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