AirBand Glove System March 10, 2009 ECE 4007 L03 Aaron Kane Roth Fralick Jason Zutty

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.

Design Goals Extensible architecture. Standard MIDI output. Intuitive operation. Marketable product.

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]

Sensor Positions Figure edited from [1]

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

Embedded System Block Diagram

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

Computer System Flowchart

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

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

Design Issues Sensor orientation and positioning. Testing different methods against needs. MATLAB “real-time” MIDI output.

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

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

Current Status Important parts obtained. Programming Microcontroller. Constructing glove. Designing MATLAB system.

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):

Questions?