18-549 Team 1: Reflex Project Presentation

18-549 Team 1: ReflexProject Presentation

System ArchitectureUse CaseReliability

Inbae Lee (inbaelee@cmu.edu), Paul Thurlow (pthurlow@andrew.cmu.edu), Ryan Frishberg (frish@cmu.edu), Siva

Srinivasan (siva@cmu.edu)

18-549 Team 1: Reflex Project Presentation1/18/2007 2

Re-cap: Concept• Gaming Glove

– wearable glove which detects hand movements for use as an input device

– Accelerometer data to tell hand movement and the Telos Mote to wirelessly communicate

• What’s New– Force Sensor Resistor: button on the thumb– Flex Sensor: finger flex detection

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System Architecture

SensorData

Raw Data

ProcessedData

Process Data

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State Transition Diagram

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Use Cases

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Risks & Mitigation• “We lost data during communication”:

Disregard, or guess with ‘before & after’

• “We don’t know how to talk to Wii”:Just talk to laptop (or beg Nintendo for help)

• “We can’t get the flex sensor to cooperate”:

Use the one with pre-made board instead

• “Reflex is too slow & laggy”:Optimize code or limit functionality

• “Our sensors aren’t sensitive enough”:Hmm…(target the elderly?)

18-549 Team 1: Reflex Project Presentation

Questions?

1/18/2007 7

What our glove might look like (plus all the wires)

Flex sensor (on the index finger)