Weekly Meeting 7 (1/28/19)
- Ottobock hand – moving forward:
- Shaan received a contact for “professional services”
- Kevin Kelly — Case contact
- Emily is going to email him and cc Shaan
- They have another hand, just would require an extra component (a post)
- Presentation
- Natural muscle control slide – shows 3 key features
- Sensory motor control might be better term
- Needs Assessment
- Include more natural control as explicit need (intuitiveness of use)
- Specify changing to force-based control
- Include more natural control as explicit need (intuitiveness of use)
- Design Approach
- Add boxes around who is doing what
- EMG acquisition
- Don’t have to worry about placing on specific muscles, but general area looks good
- EMG signal interpretation
- Don’t have to worry about multiple hand postures
- Should focus on simple open and close
- Looking into things like RMS is a good route, but don’t make too complicated — stay in scope
- Hardware
- First iteration is fine to be bulky
- Products on the way
- Control Scheme
- Might need input of current angle of the hand
- Currently thinking of including in PID controller
- Thinking of using servo motor
- Emily has some other ideas if we get stuck
- Actual position of motor might be important for saturation check
- Add another feedback loop
- Keep in mind how we’re going to test at each node
- Don’t need to wait until everything is done to test different parts
- Good first pass diagram
- Might need input of current angle of the hand
- Natural muscle control slide – shows 3 key features
- This week
- Start looking into EMG to hand posture coupling
- Setting up protocol for phantom testing
- Looking into more explicit details for algorithm