1. P13045 Mobile Pediatric Stander
Megan
Heather Beam
Thomas Bean
Megan Chapman
Steven Geiger
Kimberly Keating

2. Final Review Agenda Topic Time Project Summary 10:00 am Customer Needs
Engineering Specifications
10:04 am
Work Breakdown Structure
10:05 am
System Architecture
10:07 am
Design Summaries
10:09 am
Testing
10:20 am
Weight Tracking
10:22 am
BOM and Budget
10:23
Recommendations
10:24
Questions/Comments
10:25 am
Megan

3. Project Description
Motorize a Pediatric Stander to increase independence and mobility for user
Add ≤ 20 lbs.
Incorporate Training Mode
SAFETY
Versatile Controls
Megan

4. Updated Customer Needs
Heather

5. Updated Engineering Specifications
Heather

6. Work Breakdown Structure
Megan

7. System Architecture
Tom

8. Design Summary – Tray Mount
Utilization of slot system on original frame
Hold 20+ pounds
Adjustable up/down, left/right
Constructed out of aluminum bars and 80/20
Megan

9. Design Summary – Remote Control
Used by therapist to control the stander
Two Modes:
Override Mode
Assistive Mode
Sends control signal to the stander using a wired serial connection
Uses TI Stellaris Launchpad microcontroller
tom

10. Design Summary – Battery Mount
Heather
Used the existing frame to attach
Bottom piece was cut and bent up
Top pieces were cut and had a threaded rod welded in

11. Design Summary – Board Housing
Holds the LM4F232 evaluation board and voltage regulator
Attaches to the bottom of the tray
Ports for buttons are set in the wall of the housing
Heather

12. Trainer Mode Same board as stander Wired Serial Connection
Ensure compatibility
Wired Serial Connection
Matches the module on the Stander board
Handheld remote control
Tom

13. Press to go Tray: 13.75” x 8.75” Button: 2” x 2” Tray Layout 1
Must keep pressure to continue movement
Tray: 13.75” x 8.75”
Button: 2” x 2”
Steve

14. Required Tests – Button Scenario Mode 1
Desired Outcome - Software Interpretation
Desired Outcome - Stander Interpretation
Actual Outcome - Stander Movement
Comments -
Left
Press & Hold
Direction interpreted as left
Stander moves left
Right
Direction interpreted as right
Stander moves right Up
Direction interpreted as forward
Stander moves forward
Down
Direction interpreted as backward
Stander moves backwards
Direction = none
No movement
Direction interpreted as forward/left
Stander moves forward to the left
Direction interpreted as backward/left
Stander moves backwards to the left
Direction interpreted as forward/right
Stander moves forward to the right
Direction interpreted as backward/right
Stander moves backwards to the right
Press
Stander turns left
Stander turns right
Stander inches forward
Stander inches backwards
Stander turns forward to the left
Stander turns backwards to the left
Stander turns forward to the right
Stander turns backwards to the right
Steve

15. STOP Press to go until another button is pressed Tray: 13.75” x 8.75”
Tray Layout 2
Press to go until another button is pressed
Stop button to stop
Tray: 13.75” x 8.75”
Button: 2” x 2”
STOP
Steve

16. Required Tests – Button Scenario Mode 2
Desired Outcome - Software Interpretation
Desired Outcome - Stander Interpretation
Actual Outcome - Stander Movement
Comments -
Left
Press
Direction interpreted as left
Stander moves left
circle
Right
Direction interpreted as right
Stander moves right Up
Direction interpreted as forward
Stander moves forward
Down
Direction interpreted as backward
Stander moves backwards
Stop
Direction = none
No movement
Direction interpreted as forward/left
Stander moves forward to the left
Direction interpreted as backward/left
Stander moves backwards to the left
Direction interpreted as forward/right
Stander moves forward to the right
Direction interpreted as backward/right
Stander moves backwards to the right
Stander stops
Stander Stops
Steve

17. Weight Tracking Component Quantity Weight (lb) Total Weight (lb)
Battery 1
7.7 lb
Battery Mount
1 lb
Motorized Wheels 2
3.2 lb
6.4 lb
Motor Controllers
0.16 lb
0.32 lb
Sensor Bumper Mounts
0.5 lb
Lego Tray
0.2 lb
Tray Mount
3 lb
Total
19.62 lbs
Megan

18. Bill of Materials - 1
Kim

19. Bill of Materials - 2
Kim

20. Bill of Materials - 3
Kim

21. Bill of Materials - 4
Kim

22. Bill of Materials - 5
Kim

23. The Bottom Line Budget: $6,000 Current Total: $5,622.86
Includes shipping costs
Remaining Budget: $377.14
Kim

24. Recommendations Encompass wiring within the stander structure
Reduce the size of the trainer remote
Add ultrasonic sensors to prevent collisions while allowing stander movement
Incorporate Bluetooth to the Remote Control System
Kim