vinay barde : program manager alfred lee: lead ce jason marks: lead ee alexis reusch: program...
TRANSCRIPT
Vinay Barde : Program Manager
Alfred Lee: Lead CE
Jason Marks: Lead EE
Alexis Reusch: Program Facilitator
Balance Tower(P12005)
Project Description
Customer Needs
Engineering Specifications
Concept Summary
System Architecture
Design Summary
System Testing Results
Objective Project Evaluations
Suggestions for Future Work
Agenda
Seated balance to help physical therapist teach wheel chair bound patients to improve the strength of their core muscles.
Currently have a tower that is built that has seven large panels in a vertical line that are separated by banks of 3 tri-colored LEDs.
When activated the LED’s will be blue, if the patient touches the target they will turn green and if they miss they will become red.
There are two games in the MCU : Random & Timed Trial
Second tower will be added to the game to add more challenges for the patients. This tower will be a slave to the first tower and help to increase a patients side to side reaching distance.
Project Description
Customer Need
#Description Comments/Status
4 …that engages the clients Check
6 …with measurable outcomes Check
7 Safe for physical therapists Check
8 Safe for clinic clients Check
9 Easy for Physical Therapist to use Check
10 Easy for patient to use Check
11 Minimal repair cost Par
12Can be used with only one attending physical
therapist Check
13 LED indication when the tower is powered on Check
14 Option to vary timing delay of panels Check
15 Selection of which panels are on Check
20 Duration of games need to be increased Check
21 Add audio to indicate succesful touch of panel Incomplete
22Measures how far patient is from tower (first knuckle
to the tower) Check
24Rechargable batteries that can be removed from
tower Check
Customer Needs
Engineering Specifications
Metric No.
Need Nos.
Engineering SpecificationsMetric Units
Ideal Value
Relationship to System Architecture
1 7,8 Time to sanitize sec 60 Capacitive Buttons2 5 game response time ms 40 MCU3 9 set up time ( movement of towers) mins 1 System4 1,3,14 Time to activate touch sensitive panels ms 20 Capacitive Buttons8 6,23 Functional reach measurement accuracy in 0 Sensor9 9 Time to program games minutes 2 MCU13 2,9,11 Weight for entire system (per tower) lbs 15 System16 9,24 Time to replace batteries min 1 System19 13 LED indication to be ready to use sec 3 MCU, LED22 15 LED Indication for which buttons are selected sec 5 MCU, LED23 17, 18 Device will display results (hit, miss, average time, separate results per tower) boolean yes LCD, MCU
Concept SummaryMSP430 BoardFunctional Reach Wireless
System Architecture
Software
PCB
Design Summary
System Testing Results
Turn tower on
Select game via user input buttons
For random:
Chose time of each round
# of rounds
For sequence:
Chose time of each round
# of rounds
Press any key to start
Results displayed, hits, misses after completion
Option to play again
Demo
SuccessFunctioning tower
Functional reach test
PCB
Upgrade to MSP430 + TI resources now available
Objective Project Evaluations:Success and Failure
Failure Incorporation of second
tower Wireless Automated functional
reach Not capacitive touch
based Only two games
The previous MCU used a different complier, which RIT no longer had a license for
The previous code used was not up to date on edge
The current touch plates on the towers are not capacitive touch plates, they are grounding plates, which required a comparator circuit to make work
Due to troubles encountered, the wireless was never completed and the functional reach was never automated.
Reasons for Failures
Capacitive touch buttons• Suggested to use selected capacitive
touch chip
Add additional towers
Wireless communication• suggested to use selected wireless device
(eZ430-RF2500)
Automate functional reach
Create additional games
Add sound
Suggestions for Future Work
Electrical
Part NameManufactur
erManufacturer
Part #Distributor
Distributor Part #
Unit PriceQuantit
yTotal Price
1 RGB LED's KingbrightWP154A4SUREPB
GVGAWDigiKey 754-1492-ND $1.37 60 $82.20
2 Microprocessor Board
TIMSP-
EXP430F5438- - $149.00 2 $298.00
3Rechargeable Batteries and
ChargerTenergy - All-Battery.com
8 Bay charger and 16
Batteries$36.49 1 $36.49
4 Voltage Regulator (3.3v)
- - SparkFun COM-00526 $1.95 4 $7.80
5 EZ430-RF2500 TI EZ430-RF2500 - $49.00 1 $49.00
6 Ultra Sonic Ping Sensor
Parallex 28015 DigiKey 28015-ND $29.99 2 $59.98
7 MSP430 USB JTAG TI MSP-FET430UIF - - $99.00 1 $99.00
8 PCBAdvanced Circuits
-Advanced Circuits
- $33.00 3 $99.00
9 EZ RF Header Mill-Max 850-10-006-20-
001000ARROW - $1.14
2 $2.2810 LCD Screen Sparkfun GDM12864H Sparkfun GDM12864H $19.95 1 $19.95
11 TransistorsFaichild
Semiconductor
2N4401D75ZCT-ND
Digikey 2N4401TAR $0.2130 $6.30
12 Surface Mount Resistors 4.7K
Panasonic P4.7KGDCT-ND Digikey ERJ-3GEYJ472V $0.1550 $7.46
13 Surface Mount Resistors 820K
Panasonic P820KGCT-ND DigiKey ERJ-3GEYJ820V $0.0150 $0.46
14 Surface Mount Resistor 56
Panasonic P56GCT-ND DigiKey ERJ-3GEYJ560V $0.01100 $0.70
15 Surface Mount Capacitors .1uF
Murata Electronics
490-1524-1-ND DigiKeyGRM188R71E1
0KA01D$0.03
20 $0.52
16 Surface Mount Capacitors 10uF
TDK Corporation
445-6853-1-ND DigiKeyC1608X5R1A10
6M$0.46
10 $4.5717 LM339 TI Radioshack 276-1712 $2.19 2 $4.38
Electrical BOM
Mechanical Part Name Distributor Distributor Part # Unit Price Quantity Needed Total Price
1 PVC Sheet McMaster-Carr 8747K217 $256.73 1 $256.732 Aluminum Sheet McMaster-Carr 8975K32 $50.50 2 $101.003 Clear LED Window McMaster-Carr 8574K32 $26.31 1 $26.31
4 Plate and Structure Screws
McMaster Carr 91772A253 $11.54 2 $23.08
5 LED Window Screws McMaster-Carr 91735A242 $5.33 2 $10.666 Base Gempler's 176426 $21.30 2 $42.607 Set rods McMaster-Carr 87025K29 $1.18 ( per ft) 5 $5.90
8 Rubber Edge McMaster-Carr 3482K4$2.44 ( per
foot) 20 feet $48.80
9 Foam haloCases By
Source, Inc.FS06 24"X36" $24.46
10 Handles Lowe's 4 $3.2811 Tape Mreasure Lowe's 1 $11.7412 Velcro 13 Velcro Joanne Fabrics 15x34 $16.4714 Straps StrapsWorks 2 15 Castors Lowe's 4 $4.97
Mechanical BOM
Questions???