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Electronic Dartboard (ED) Azum Z. Ali, Jason Ngo, Matthew O’Connell, Han Truong Faculty Advisor: Prof Massimo (Max) V. Fischetti Thursday, October 13, 2005. PDR PRESENTATION. Introduction. Building an Electronic Dartboard (“ED”) that automatically keeps track of score

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Pdr presentation l.jpg

Electronic Dartboard (ED)

Azum Z. Ali, Jason Ngo, Matthew O’Connell, Han Truong

Faculty Advisor: Prof Massimo (Max) V. Fischetti

Thursday, October 13, 2005

PDR PRESENTATION


Introduction l.jpg

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


Background l.jpg

ED's Design

horse hair/cork

reliable scoring

sleek design

regulation size

any standard darts

Background

  • Dartboard on the market

    • made out of plastic

    • very unreliable

    • unattractive

    • not regulation

    • use plastic darts


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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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Overview

  • Sectionalized board

  • Sensing electronics

  • Data Transmission

  • Software

  • Combine into functional design


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Long-term goal

  • MDR

    • Working reliable sense system

    • Efficient data transmission

  • Final Design

    • All sections working

    • Accurate scoring


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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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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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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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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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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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System Block Diagram


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Dartboard Electronics

  • Pressure sensors

  • A/D Converter

  • Foot Line Sensor

  • Power supply


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Microprocessor

  • Receive Data

  • Store Data

  • Convert Data

  • Transmit Data

  • Serial Connection


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Computer Program

  • Store Data

  • Compute Data

  • Display Data

  • GUI


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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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Conclusion

  • Automatically keep score

  • Efficient and Reliable Sensing

  • Values recognized and Displayed on GUI

  • Overall fun and hassle-free gameplay!


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Any questions?


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