MSD II System Demonstration P 15044 Intelligent Mobility

MSD II System Demonstration P 15044 – Intelligent Mobility Cane 4/16/2015

Agenda ● ● ● System Overview Current State Risk Management Project Plan & Budget Looking Forward- 3 week plans Peer Reviews & Lessons Learned RIT MSD P 15044 –Intelligent Mobility Cane 2

System Overview

Full Assembly RIT MSD P 15044 –Intelligent Mobility Cane 4

Current State

Cost Drivers Overall System Cost (Old) Subsystem Unit Cost per 1000 Electronic Components $46. 51 $19. 12 Unmounted Electrical Components $99. 65 $75. 25 Mechanical Structure Components $31. 51 $11. 22 Miscellaneous Components $0. 00 TOTAL $177. 67 $105. 59 Overall System Cost (New) Subsystem Unit Cost per 1000 Electronic Components $46. 51 $21. 12 Unmounted Electrical Components $99. 65 $75. 25 Mechanical Structure Components $31. 51 $11. 98 Miscellaneous Components $0. 00 TOTAL $177. 67 $108. 35 Even with design changes, our cost for full-scale manufacturing will be under the maximum material cost of $125. RIT MSD P 15044 –Intelligent Mobility Cane 6

Mechanical Current State RIT MSD P 15044 –Intelligent Mobility Cane 7

Ergonomics Moment required to support cane, M equals: M=Fd=. 64 lb * 5. 3 in= 3. 4 in-lb The maximum recommended value is about 6 Nm or 53 in-lb. RIT MSD P 15044 –Intelligent Mobility Cane 8

Electrical Current State Battery Board Power Board RIT MSD P 15044 –Intelligent Mobility Cane 9

Battery Use Case Battery Life- 3237. 96 m. A/hr Worst Case < Average Battery Life RIT MSD P 15044 –Intelligent Mobility Cane 10

Infrared Sensitivity Dist B 1 [ft] = 8 ft Results Angle of the IR Sensor (°) Maximum Sweep Height (in) 16. 3367 4. 0380 19. 5596 4. 0440 23. 5569 3. 9252 ***Angle is with respect to the cane. Worst Case Positive with Ideal Angle 10. 14 1. 512 Dist B 1 [ft] Maximum Sweep Height (in) Worst Case Negative with Ideal Angle 6. 45 6. 642 Dist B 1 [ft] = 7 ft Results Angle of the IR Sensor (°) Maximum Sweep Height (in) 14. 2109 5. 7480 17. 3474 5. 7120 An increase in 2 degrees of the angle of the infrared sensor induces a 1 foot increase in the start of the drop-off detection distance. 21. 1775 5. 5440 ***Angle is with respect to the cane. Dist B 1 [ft] Maximum Sweep Height (in) Worst Case Positive with Ideal Angle 8. 57 3. 24 RIT MSD P 15044 –Intelligent Mobility Cane Worst Case Negative with Ideal Angle 5. 79 8. 244 11

Software Current State Task Utilities Detection Control Other Code Debug Write ADC Utilities 100% 100 % Write PWM Utilities 100% 100 % Write Timer Utilities 100% 100 % Write EEPROM Utilities 100% 100 % Write Dropoff Detection Algorithm 100% 0% Write Object Detection Algorithm 100% 0% Write Low Power Detection 100% 100 % Setup 100% 100 % Main Control Flow 100% 100 % Event Handlers 100% 100 % Ping The Ultrasonic Sensors 100% 100 % Pulse Vibration Motors 100% 100 % RIT MSD P 15044 –Intelligent Mobility Cane

Going Forward

Validation Matrix on EDGE RIT MSD P 15044 –Intelligent Mobility Cane 14

Problems in Progress Issue Description Assigne d To Owner Current Status Priority 7 Work In Progress High Hard to distinguish between vibrations on cane handle Allan, Dan, Marisa Mechanical Electrical 04/02/15 Fuction of Handle Met with Vibration Expert (Dr. Ghoneim), purchased low stiffness rubber on Tuesday, 2/24/15, Experiment with pulsing motors, 25 Work In Progress Low Enclosure button holes too small Andrew Mechanical /Electrical 04/19/15 Assembly Increase tolerance around buttons. Investigate normal tolerances of button placement in large scale manufacturing System 04/14/15 Andrew 26 Work In Progress Low Overhang US Sensor doesn't fit Andrew through Enclosure Cover Mechanical 04/19/15 Assmebly Increase space around sensor, consider diifferent model geometries System 04/14/15 Andrew 27 Work In Progress Low Velcro Strap doesn’t fit through Andrew slot Mechanical 04/19/15 Assembly Increase slot width, use straps without grommets, or both System 04/14/15 Andrew RIT MSD P 15044 –Intelligent Mobility Cane System Affected Expected Resolution Date ID Impact Summary Action Steps Issue Type Date Entered Identified By Informatio 02/12/15 Justine nal 15

3 Week Plans RIT MSD P 15044 –Intelligent Mobility Cane 16

Imagine. RIT Obstacle Course Featured Obstacles: 5 ft Overhang 5 ft Wall 6 in Step(s) 6 in Ramp/Drop Off RIT MSD P 15044 –Intelligent Mobility Cane 17

Project Plan RIT MSD P 15044 –Intelligent Mobility Cane 18

Risk Management document on Google Drive RIT MSD P 15044 –Intelligent Mobility Cane 19

Planned vs Actual Budget RIT MSD P 15044 –Intelligent Mobility Cane 20

Lessons Learned • Verify team deadlines match course deadlines. • Be as critical as necessary during Peer Reviews. RIT MSD P 15044 –Intelligent Mobility Cane 21