1. Electrical and Computer Engineering Motion Analyzer for Physical Therapy (MAPT) SDP10 – Final Project Review Arjuna Baratham (CSE) - Sean Klaiber (EE) - James Rutter (EE) - Constantina Tyes (EE) Professor Soules Advisor, Senior Lecturer, ECE April 9th, 2010

2. 2 Electrical and Computer Engineering Outline I.Demonstration II.Key Design Components III.Design Review IV.Complete Design Overview

3. Electrical and Computer Engineering DEMONSTRATION

4. Electrical and Computer Engineering Outline I.Demonstration II.Background III.Key Design Components IV.Complete Design Overview V.Future + Timeline

5. 5 Electrical and Computer Engineering Problem and Solution Reliable Quantitative Data in Physical Therapy (PT) can only be Collected with a One-on-One Patient/Therapist Interaction Create a simple, inexpensive, and portable device that can accurately measure physical therapy related motion

6. 6 Electrical and Computer Engineering Block Diagram

7. 7 Electrical and Computer Engineering FPR Deliverable 2 PCB WS working PSFD communicating with the user PCB and enclosures for wireless sensors and PSFD PT software

8. 8 Electrical and Computer Engineering Outline I.Demonstration II.Background III.Key Design Components IV.Complete Design Overview

9. 9 Electrical and Computer Engineering Mounting Wireless Sensor Housed in a lightweight plastic enclosure –3.125”x2”x0.875” weighing about one pound Two sensors comfortably mounted above and below knee –Pouch and strap designed for holding cell phones for horseback riders

10. 10 Electrical and Computer Engineering Manufacturing PCB All PCBs made by students –Front and back of sensor pcb shown below

11. 11 Electrical and Computer Engineering Outline I.Background II.Key Design Components III.Demonstration IV.Complete Design Overview V.Timeline

12. 12 Electrical and Computer Engineering PT Software Audio Updates/Additions Viewing of Exercise Charts By Demo Day: Textual Summary of Exercise Data

13. 13 Electrical and Computer Engineering Processing and Display Counterpart XBee wireless receiver plugged into USB on BeagleBoard All data values plus timestamp logged into.txt file Python script on Beagleboard processes received sensor data Real-time feedback – Sends Arduino commands to interact with visual feedback – Playback of audio cues that were recorded by PT Data Logging – Stores all received data with single header Java GUI can plot and organize all of the logged data

14. 14 Electrical and Computer Engineering Exercise Scripts Data Rate: 60 Packets per second (per sensor) File System: Script Files in /script/ Data Files in /data/[exercise name]/ Audio Files in /PT Audio Data/[exercise name]/

15. 15 Electrical and Computer Engineering PSFD : Input/Output Python – Listen Script upon Beagle Startup Arduino/BeagleBoard exchange simple serial messages Audio feedback – limited use 7 Segment LEDs – low power, high visibility

16. 16 Electrical and Computer Engineering

17. 17 Electrical and Computer Engineering Finances Already purchased: Anticipated costs: Part #DescriptionQuantityUnit PriceTotal Price WRL-08664Xbee Radio222.95$45.90 v1.1Xbee Adapter Kit210.00$20.00 900.002Xbee USB Board129.95$29.95 SEN-092693D Accelerometer124.95$24.95 EPS050100-P6P5V Power Supply17.16$7.16 Total$127.96 Part #DescriptionQuantityUnit PriceTotal Price WRL-08664Xbee Radio122.95$22.95 v1.1Xbee Adapter Kit110.00$10.00 SEN-092693D Accelerometer124.95$24.95 Wireless Sensor PCB333.00$99.00 Total$156.90

18. 18 Electrical and Computer Engineering Team Roles Sean PSFD output, PT java GUI, PCB production James PCB production, PSFD input, closure design Arjuna Wireless data Tx/Rx, Python exercise scripts PT java GUI Constantina Wireless sensor design PCB production

19. 19 Electrical and Computer Engineering Questions?