Transcript Final Presentation

Vinay Barde : Program Manager
Alfred Lee: Lead CE
Jason Marks: Lead EE
Alexis Reusch: Program Facilitator
Agenda
Project Description
Customer Needs
Engineering Specifications
Concept Summary
System Architecture
Design Summary
System Testing Results
Objective Project Evaluations
Suggestions for Future Work
Project Description
 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 tricolored 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 .
Customer Needs
Customer
Need #
Description
Comments/Status
Check
Check
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Par
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Incomplete
22
…that engages the clients
…with measurable outcomes
Safe for physical therapists
Safe for clinic clients
Easy for Physical Therapist to use
Easy for patient to use
Minimal repair cost
Can be used with only one attending physical therapist
LED indication when the tower is powered on
Option to vary timing delay of panels
Selection of which panels are on
Duration of games need to be increased
Add audio to indicate succesful touch of panel
Measures how far patient is from tower (first knuckle to the
tower)
24
Rechargable batteries that can be removed from tower
Check
4
6
7
8
9
10
11
12
13
14
15
20
21
Check
Engineering Specifications
Metric
No.
1
2
3
4
8
9
13
16
19
22
23
Need
Nos.
7,8
5
9
1,3,14
6,23
9
2,9,11
9,24
13
15
17, 18
Engineering Specifications
Metric
Time to sanitize
game response time
set up time ( movement of towers)
Time to activate touch sensitive panels
Functional reach measurement accuracy
Time to program games
Weight for entire system (per tower)
Time to replace batteries
LED indication to be ready to use
LED Indication for which buttons are selected
Device will display results (hit, miss, average time, separate results per tower)
Units
sec
ms
mins
ms
in
minutes
lbs
min
sec
sec
boolean
Ideal
Value
60
40
1
20
0
2
15
1
3
5
yes
Relationship to
System Architecture
Capacitive Buttons
MCU
System
Capacitive Buttons
Sensor
MCU
System
System
MCU, LED
MCU, LED
LCD, MCU
Concept Summary
 MSP430 Board
 Functional Reach
 Wireless
System Architecture
Design Summary
 Software
 PCB
System Testing Results
Demo
 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
Objective Project Evaluations:
Success and Failure
Success
 Functioning tower
 Functional reach test
 PCB
 Upgrade to MSP430 + TI
resources now available
Failure





Incorporation of second tower
Wireless
Automated functional reach
Not capacitive touch based
Only two games
Reasons for Failures
 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.
Suggestions for Future Work
 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
Electrical BOM
Electrical
Part Name
Manufacturer Manufacturer Part #
Distributor
Distributor Part #
Unit Price
DigiKey
754-1492-ND
$1.37
60
$82.20
-
$149.00
2
$298.00
$36.49
1
$36.49
$1.95
$49.00
$29.99
$99.00
4
1
2
1
$7.80
$49.00
$59.98
$99.00
3
$99.00
2
1
$2.28
$19.95
30
$6.30
50
$7.46
50
$0.46
100
$0.70
20
$0.52
10
2
$4.57
$4.38
1
RGB LED's
Kingbright
2
TI
Tenergy
-
All-Battery.com
4
5
6
7
Microprocessor Board
Rechargeable Batteries
and Charger
Voltage Regulator (3.3v)
EZ430-RF2500
Ultra Sonic Ping Sensor
MSP430 USB JTAG
WP154A4SUREPBGV
GAW
MSP-EXP430F5438
EZ430-RF2500
28015
MSP-FET430UIF
SparkFun
DigiKey
-
8
PCB
TI
Parallex
TI
Advanced
Circuits
8 Bay charger and
16 Batteries
COM-00526
28015-ND
-
-
Advanced Circuits
-
$33.00
9
EZ RF Header
ARROW
-
$1.14
10
LCD Screen
Sparkfun
GDM12864H
$19.95
11
Transistors
Digikey
2N4401TAR
$0.21
3
12
13
14
15
16
17
Mill-Max
850-10-006-20001000
GDM12864H
Sparkfun
Faichild
Semiconducto 2N4401D75ZCT-ND
r
Surface Mount Resistors
Panasonic
4.7K
Surface Mount Resistors
Panasonic
820K
Surface Mount Resistor
Panasonic
56
Surface Mount
Murata
Capacitors .1uF
Electronics
Surface Mount
TDK
Capacitors 10uF
Corporation
LM339
TI
P4.7KGDCT-ND
Digikey
ERJ-3GEYJ472V
$0.15
P820KGCT-ND
DigiKey
ERJ-3GEYJ820V
$0.01
P56GCT-ND
DigiKey
ERJ-3GEYJ560V
$0.01
490-1524-1-ND
DigiKey
GRM188R71E10KA
01D
$0.03
445-6853-1-ND
DigiKey
C1608X5R1A106M
$0.46
Radioshack
276-1712
$2.19
Quantity Total Price
Mechanical BOM
Mechanical
Part Name
Distributor
Distributor Part #
Unit Price
Quantity Needed
Total Price
1
PVC Sheet
McMaster-Carr
8747K217
2
Aluminum Sheet
McMaster-Carr
8975K32
3
Clear LED Window
McMaster-Carr
8574K32
$256.73
$50.50
$26.31
1
2
1
$256.73
$101.00
$26.31
4
Plate and Structure Screws
McMaster Carr
91772A253
$11.54
2
$23.08
5
LED Window Screws
McMaster-Carr
91735A242
6
Base
Gempler's
176426
7
Set rods
McMaster-Carr
87025K29
8
Rubber Edge
McMaster-Carr
3482K4
$5.33
$21.30
$1.18 ( per ft)
$2.44 ( per foot)
2
2
5
20 feet
$10.66
$42.60
$5.90
$48.80
9
Foam halo
Cases By Source,
Inc.
FS06
24"X36"
$24.46
10
Handles
Lowe's
11
Tape Mreasure
Lowe's
4
1
$3.28
$11.74
12
Velcro
13
Velcro
Joanne Fabrics
$16.47
14
Straps
StrapsWorks
15
Castors
Lowe's
15x34
2
4
$4.97
Questions???