cs-ee 481 1founder’s day university of portland school of engineering project bog wireless...
TRANSCRIPT
CS-EE 481
1Founder’s DayUniversity of Portland School of Engineering
Project BoGProject BoGWireless Breath-Analyzer with Key-Wireless Breath-Analyzer with Key-
LockLock
TeamJessica Herman
Patrick Hunt
Jeremy Okuda
Steve Westdal
Faculty AdvisorsDr. Hoffbeck, Dr. Osterberg
Industry RepresentativeMr. Andrew Hui
Intel Corporation
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Agenda
• Introduction Jessica Herman
• Background Jessica Herman
• Methods Patrick Hunt
• Results Jeremy Okuda
• Conclusions Steve Westdal
• Demonstration Team BoG
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Introduction
• The Problem:– Consuming alcohol impairs one’s vision, motor
skills, and judgment. – These impairments have a very serious effect
on one’s driving abilities.– Unable to determine if BAC is
below legal driving limit of .08
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• The Solution:– Wireless Breath-Analyzer With Key-Lock
Introduction (Cont’d)
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• The Goal:- Calculate the user’s BAC and use this value to
control the peripherals- Utilize Zigbee wireless modules to have two
physically separated units: Collector and Logic
Background
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Background (Cont’d)
• Collector Unit:- Receives input from the alcohol sensor.- Converts alcohol concentration in an analog input
to its corresponding digital signal.- Sends data wirelessly to Logic unit using Zigbee
module.
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Background (Cont’d)
• Logic Unit:- Zigbee module receives data wirelessly from the
Collector unit.- Uses the lookup table programmed into the PIC to
determine user’s BAC.- Determines whether the user’s BAC is above or
below .08 and responds accordingly.
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Methods• Determine the scope of the project
– Began in March 2008
• Determine the functionality of the project– Stand alone Unit– Wireless Link– Visual and Audible Indicators
• How do we produce this functionality• Determine feasibility of the project• What will we be able to do with the MOSIS
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Methods (Cont’d)• Results• Drive capabilities of MOSIS versus PIC
• Different Logic Levels?• Integration of all parts
into a single unit• Testing and De-bugging
– Check and Recheck
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Results
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Results (Cont’d)
• Collector Unit– Alcohol Sensor
Converts user’s ppm into a voltage ranging from 0-5V
– PICConverts ppm voltage from analog to digital
– Zigbee Wireless UnitSends digital voltage reading wirelessly to
Logic UnitFounder’s Day
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Results (Cont’d)• Logic Unit
– ZigbeeReceives the voltage reading wirelessly from the
Collector Unit
– PICConverts voltage into a BAC, displays the BAC
on the LCD, and sends the BAC to the MOSIS chip
– MOSISDetermines whether the user passes and controls
the corresponding LEDs, sounds, and key-lockFounder’s Day
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Results (Cont’d)
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• B2Logic Schematic
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Results (Cont’d)
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• LEDIT Layout
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System Results
Individual
√ ADC
√ Wireless
√ MOSIS
√ LCD
√ Key-Lock
System
√ ADC
√ Wireless
√ MOSIS
√ LCD
√ Key-Lock
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System Results
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Conclusion• Wireless Breath-Analyzer With Key-Lock
– Goal: safety
• Enhancements:– Power consumption– 10 bit ADC– End product Small scale– Packaging
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Demonstration
Simulation of Wireless Breath-Analyzer with Key-Lock
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Special Thanks
• Dr. Joseph Hoffbeck• Dr. Peter Osterberg• Dr. Andrew Nuxoll• Mr. Andrew Hui• Grant from the MOSIS Educational Program
(MEP)
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Thank You.
Are there any questions?