AirBand Glove System

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AirBand Glove System

• March 10, 2009
• ECE 4007 L03

Aaron Kane Roth Fralick Jason Zutty
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AirBand

• Emulates playing musical instruments through
  natural gestures.
• Shows the potential of an extensible system.
• Costs significantly less than current market.
• Uses in consumer electronics and HCI research.

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Design Goals

• Extensible architecture.
• Standard MIDI output.
• Intuitive operation.
• Marketable product.

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Data Glove

• Baseball batting glove.
• Induction based sensors.
• Coils consist of magnet wire.
• Coils on inside of hand.
• 3 coils per finger.

Figure from 1
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Sensor Positions

• Figure edited from 1

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Embedded System

• PCB connected to glove wrist.
• Atmel ATMega1284P microprocessor.
• Crystal Oscillator creates generator signal.
• Time division modulated measurements across
  fingers.
• Digital signal Outputs.

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Embedded System Block Diagram
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Computer Control System

• MATLAB based application
• EIA-485 over Ethernet.
• Outputs standard MIDI signal.
• User level API for added functionality.

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Computer System Flowchart
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Demonstration

• System emulating bass guitar.
• 4 strings, 4 fingers.
• Moderate tempo baseline.
• System output to Yamaha MU100 tone generator.

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Testing

• Verifying correctness of output.
• Ensure negligible interference in sensors.

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Design Issues

• Sensor orientation and positioning.
• Testing different methods against needs.
• MATLAB real-time MIDI output.

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Future Schedule
March 13 Physical gloves wired
April 4 Working Microcontroller
April 11 Working MATLAB system
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Cost Analysis

• Based on 10,000 Units over 5 years
• 3 design engineers other staff and overhead
  yields a total non-recost of 31.13.
• Parts cost 103.60.
• Overall cost per unit around 430.
• Sell at 500.
• Earn about 700,000 profit.

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Current Status

• Important parts obtained.
• Programming Microcontroller.
• Constructing glove.
• Designing MATLAB system.

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Resources

• 1 Development of a data glove with reducing
  sensors based on magnetic induction Chin-Shyurng
  Fahn Herman Sun Industrial Electronics, IEEE
  Transactions on Volume 52,  Issue 2,  April 2005
  Page(s)585 - 594

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Questions?