Wireless Assistive Control Device

Upper Extremity Motion Capture Sensor

Melissa GilbertAlan Smith

Jonathan GuerretteDan Chapman

Pooja NandaAdey Gebregiorgis

Action Items completed

Concept selection matrix completed for sensors, data acquisition system, GUI

Up to date -> all living documents2-Q plan, 1 page summary, customer needs

Specification finalized

Benefits of the BioRadio

Concepts  A     B         

       Custom Circuit    

BioRadio  

Selection Criteria WeightRatin

g Notes WtdRatin

g Notes Wtd

Mechanical Integration 2 14% 2   0.29 3   0.43

System Overhead 4 29% 5 1.43 3 0.86

Accuracy 5 36% 2 0.71 5 1.79

Cost 3 21% 3 0.64 5 1.07

Wireless Transmission 2 14% 3 0.43 5 0.71

PC Software Capabilities 3 21% 2 0.43 3 0.64Timed Integration of

Sensors 5 36% 2 0.71 4 1.43

Design Time 5 36% 1   0.36 5   1.79

   Total

Score   5.00     8.71  

    Rank   2     1  

   Continu

e?   No     Yes  

Matrix selection for motion sensors

Concepts  A     B     C             

Accelerometer Goniometer Gyroscopes

Selection Criteria Weight Rating Notes Wtd Rating Notes Wtd Rating Notes Wtd

Signal Processing 5 21% 1   0.21 3   0.63 1   0.21

Mechanical Integration 5 21% 1 0.21 3 0.63 3 0.63

Power Requirement 3 13% 4 0.50 4 0.50 4 0.50

Position Accuracy 5 21% 1 0.21 4 0.83 1 0.21

System Overhead 3 13% 4 0.50 2 0.25 4 0.50

Cost 3 13% 4   0.50 2   0.25 4   0.50

    Total Score   2.13     3.08     2.54  

    Rank   8     5     6  

    Continue?   No     No     No  

New Action Items

Setup SVN for entire group Brace concept selection matrix Mechanical integration of sensors More Brace research and prototyping Research extensively final sensor selection

Compare data sheets Obtain samples