Team 5 Beep Baseball Finding The Best Voice

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Team 5Beep BaseballFinding The Best Voice

• Emily Baker Team Manager
• Bryan Reemmer Webmaster
• Tania Yusaf Presentation
• Andrew Herman Documentation
• Rollin Garcia Lab Coordinator
• Dr. Fathi Salem Facilitator
• Stephen Blosser - Sponsor

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Inspiration
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Beep Baseball

• History
• Design Specifications
• Internal Circuitry
• Testing
• Future Improvements

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History of Beep Baseball

• Created in 1964
• First ball used telephone parts
• 1975 - new rules
• Formation of NBBA
• Teams in U.S., China, Taiwan and Puerto Rico

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Drawbacks of Current Ball

• Difficult to locate
• Not Durable
• Cost Prohibitive
• Dangerously Heavy

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Prior Developments

• Fall 2006 Team 6
• Redesign of the exterior
• Durability
• Emits one sound pattern

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Design Specifications

• Achieve 90dB
• Field programmable
• Utilize more durable surface mount components
• Minimize the total cost
• Powered completely by a 9V battery
• Implement new piezo buzzer

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New Piezo Buzzer

• Audio Transducer
• Higher Input Voltage

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Programmable Integrated Circuit

• 6-pin 10F206
• C code
• Simulated ANDing of signals
• Frequency
• Beep duration

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Voltage Characteristics

• 10F206

• Piezo Buzzer

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Providing the Source Voltage

• DC-DC Converter

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Amplification Schemes

• Op Amp
• Reverse polarity
• Transistor Amplifier

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H-Bridge Less is More
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H-Bridge Less is More
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Piezo Revisited
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Piezo Revisited
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Piezo Revisited
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Piezo Revisited
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Piezo Revisited
0V
0V
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Piezo Revisited
30V
0V
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Piezo Revisited
0V
0V
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Piezo Revisited
0V
30V
23
Piezo Revisited
30V
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Piezo Revisited
30V
25V
25
Piezo Revisited
25V
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Piezo Revisited
25V
25V
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More Bang For Your Volt
50V!!
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How It Works
25V
0V
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How It Works
0V
25V
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How It Works
25V
0V
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How It Works
0V
25V
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Technical Approach
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New Cost
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Field Testing

• Stationary Test
• Simulates ball lying on ground.
• Mobility Test
• Simulates ball flying past player
• Notes and Data
• Breaks in sound patterns
• Constant frequencies
• Varying frequencies

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Worldwide Impact

• Production of programmable balls
• Testing with NBBA teams
• People helping people

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Future Improvements

• Wireless Programming
• Increase speed of game play
• Motion Activated
• Increase battery life
• Programmability using a GUI
• Ease programming

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Design Review

• Field Programmable
• Found Optimal Sound Pattern
• Surface Mount Design

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Thanks to our sponsors...
QUESTIONS?
Artificial Language Laboratory