Status Update

New Sensors – no analog circuit needed!

Reading user dictionary data from microSD card

Have plan for wiring and powering glove

Wesley’s roof is OK!

System Architecture

Sensors

A2D

Bluetooth Module

Quantized Data

Raw Data

HandTalk Midlet

Glove

Bluesentry Device

Cellphone

Bluetooth Packets

Demo!

I’m with stupid

Test Cases

1. BlueSentry Lost Connection Test

2. BlueSentry Power-Off Test

3. SD-Card Reading Test

4. Wrong User Input Test

5. Add/Delete Word Test

6. Start-Stop-Start Cycle Test

7. Actual Battery Life

Metrics

1. Recognition Accuracyo The ability of the system to accurately detect a sign made by

the user

o We will measure this by having an impartial user sign 10 predetermined symbols and record the amount of times the symbol was recognized as correct

2. System Latencyo Measured system startup time from initiating connection to

output on screen

o Loaded Dictionary from SD card each time before initiating connection

Initial Results

System Latency

12

17

22

27

32

37

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Trial

Tim

e (

s)

Startup Times Average