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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
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