Download - PDR PRESENTATION
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
PDR PRESENTATION
Electronic Dartboard (ED)
Azum Z. Ali, Jason Ngo, Matthew O’Connell, Han TruongFaculty Advisor: Prof Massimo (Max) V. Fischetti
Thursday, October 13, 2005
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Introduction
● Building an Electronic Dartboard (“ED”) that automatically
keeps track of score● Recreational activity for a variety of potential customers● Automation is provided by electronic system● Sensing Array● Intermediate hardware for data transmission● Software for computation and output
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Background
● Dartboard on the market – made out of plastic– very unreliable– unattractive– not regulation– use plastic darts
● ED's Design– horse hair/cork– reliable scoring– sleek design– regulation size– any standard darts
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Motivation
• Darts are a fun recreational activity• Project deliverable fun and enjoyable• End disputes over scoring, cheating• No longer responsible for scorekeeping, more
focus on fun and gameplay• Great to demo for SDP06
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Overview
• Sectionalized board• Sensing electronics• Data Transmission• Software• Combine into
functional design
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Long-term goal
● MDR– Working reliable sense system– Efficient data transmission
● Final Design– All sections working– Accurate scoring
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
The Present Situation
● Researched hardware specs● All sensors are on order (multiple options)● Micro-controllers chosen● Chose serial transmission● Overall plan agreed upon
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Development up to present
● Members researched different sensors● Spare dartboard for implementation● Extra parts for testing● Sensors agreed to test
– Strain gauges, Piezoelectric, Push-Button
● Sensor rejected– Laser grid (cost, unfeasible implementation)
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Potential Alternatives
• Strain gauges
– pressure applied resistance goes up
– create resistor circuit for voltage differences
• Pros
– Simple design
– Sensitive to pressure
– Low cost
• Cons
– Is it too sensitive?
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Potential Alternatives(contd.)
• Piezoelectric– Disturbance in Quartz crystals on Piezo material
induces a voltage• Pros
– Low cost– Piezo material can cover area needed– Good sensitivity
• Cons– Could damage Piezo film with darts
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Potential Alternatives(contd.)
• Pushbutton– Spring is compressed, voltage signal output
• Pros
– reliable
– different sizes, shapes, springs
– Low cost
• Cons
– sensitivity of pressure applied
– spring constants
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
System Block Diagram
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
● Pressure sensors ● A/D Converter● Foot Line Sensor● Power supply
Dartboard Electronics
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
● Receive Data● Store Data● Convert Data● Transmit Data● Serial Connection
Microprocessor
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
● Store Data● Compute Data● Display Data● GUI
Computer Program
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Proposed MDR Specifications
● One or more sensing options working● Operational sensor applied to sections on
dartboard● Serial transmission of bits to computer● Computer recognizes values assigned to
sections
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Conclusion
● Automatically keep score● Efficient and Reliable Sensing● Values recognized and Displayed on GUI● Overall fun and hassle-free gameplay!
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Electronic Dartboard – http://www.ecs.umass.edu/ece/sdp/sdp06/fischetti/
Any questions?