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Portable UV Monitoring Device
Nima EdelkhaniDariush SahebjavaherKimia Nassehi
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Agenda• Background• Motivation• Roles• System Overview• High level design• Implementation• Marketing• Potential Market• Cost and Financing• Competition• Timeline• What we learnt• Conclusion• Future work• Q/A
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Background
• “In 1992, Canada developed the UV Index and became the first country in the world to issue nation-wide daily UV forecasts.”
• “The UV Index predicts the maximum amount of UV for the day, at the time it will occur (usually early afternoon).”
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Background
• “It is estimated that more than 76,000 new cases of skin cancers were diagnosed across Canada in 2004.”
• “UVB damage is cumulative. However, diligent use of sunscreens during the first 18 years of life could reduce the lifetime incidence of non-melanoma skin cancers by 78%.”
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Motivation
• Ever wonder if UV level is high?• Ever found yourself sunburnt when you did not expect it?• Sun Smart’s portable monitoring device provides you with real-time UV-index at location.
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Motivation
• Ever wonder what SPF sunscreen lotion would protect your skin?• Sun Smart’s portable monitoring device suggests suitable SPF to apply
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Roles
• No Roles• Nima Edelkhani• Dariush Sahebjavaher• Kimia Nassehi
• Meetings Every Day – All Day
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System Overview
UV radiation
Buttons
A/D
Calibration
Clock
UV index
SPF level
Input Processing Unit
Output
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High Level Design
Micro Processor
LCD
UV Sensor
Analog Circuit
Buttons
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Implementation
Analog circuit
Switches
Micro Processor
LCD
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Implementation
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Functional Prototype
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Marketing
• Health care benefits• Portable and small • Easy to use in any age group• Inexpensive
• Finished product as a watch $20• Module $5
• Prospective functionalities• Implemented in different languages• Installed on many electronic devices• Text to speech feature
• Buzzer/Vibrator• Skin type specifications
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Potential Market
• Outdoor workers
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Potential Market
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Cost and Financing
• More costly than expected• Many parts are custom made
• Small LCD with driver• PCB• Miniature electronic parts & battery
• Financed through Weighton Student Fund
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Cost and FinancingQuantity Item Cost
Various Electronic Parts $287.18
3 PCB Board $224.41
1 AVR Butterfly $88.68
1 Milling Bid $33.60
1 LCD $51.33
1 Solder tip $10.87
1 Watch Case $27.91
1 Black Lamp $22.39
1 Serial to USB cable $51.51
Total $797.88
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Competition
• Weather forecast on TV• Radio• Internet
• Bulky UV meter and probe
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Time Line
• The proposed vs. actual timeline
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What Did we Learn?
• Time line: 60 Hr/Wk• Cost due to optimizing• Shipping• Miniaturization
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Conclusion
• Useful, portable and inexpensive• Marketable/ Applicable• Health benefits• Cost, timeline and effort
• Group of 3, disastrous?
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Conclusion
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Future Work
• Optimize size• Improve power consumption• Improve durability• Improve user interface• Improve accuracy• Implement buzzer/vibrator• Implement power monitoring• Quartz surface shield• Improve software
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Sources of Information
Environment Canada,http://www.msc.ec.gc.ca/
KTVU,http://www.ktvu.com/wxmap/3978600/detail.html
Oriel Goldilux, http://www.newport.com/store/genproduct.aspx?id=378893&lang=1033&Section=Pricing
Medical News Today, http://www.medicalnewstoday.com/articles/142133.php
ThomasNet, http://news.thomasnet.com/fullstory/9776
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Acknowledgement
• Patrick Leung• Steve Whitmore• Andrew Rawicz• Jamie Westell• Glenn Chapman• Fred Heep• Gary Houghton
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Question and Answer
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Technical Breakdown• Hardware• Software• Programming Methods
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp• Push button• Crystal• PCB Design Pins• Butterfly Evaluation doc
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp• Push button• Crystal• PCB Design EAGLE• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp• Push button• Crystal CITIZEN CM315• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp• Push button SDS004• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor• Op-amp OPA2347• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD• UV Sensor PDU-G106B-SM• Op-amp• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash• LCD CDM-04101• UV Sensor Philips Controller• Op-amp• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor• Flash AT45DB041D• LCD• UV Sensor• Op-amp• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware
• Microprocessor Atmel Atmega169
• Flash• LCD• UV Sensor• Op-amp• Push button• Crystal• PCB Design• Butterfly
• Software• Programming Methods
Main Menu
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Technical Breakdown• Hardware• Software
• Code• Programming Methods
Main Menu
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Technical Breakdown• Hardware• Software• Programming Methods
• ISP• Parallel Programming
Main Menu
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Technical Breakdown• Hardware• Software• Programming Methods
• ISP AVRISP mkII• Parallel Programming
Main Menu