1. P08001: ARC Communication Board
1st Design Review
Tuesday, January 29th, 2008
2:00-4:00PM

2. Team Members Cortney Ross (ME) – Project Manager Kirk Marquard (ME)
Achilles Tziazas (CE)
Amy Koster (ID)
Rachel Lepkowski (ID)
Elizabeth DeBartolo (ME) – Project Guide
Daniel Phillips (EE) – Project Guide
Stan Rickel (ID) – Project Consultant

3. Team Organizational Chart
Program Manager: Cortney Ross (ME)
Subsystem 1:
External Enclosure
Lead Engineer: Cortney Ross
(ME)
Support: Kirk Marquard (ME)
Support: Amy Koster (ID)
Support: Rachel Lepkowski (ID)
Subsystem 2:
Internal
Enclosure
Lead Engineer: Cortney Ross (ME)
Subsystem 3: Graphical User Interface
Lead Engineer: Achilles Tziazas (CE)
Subsystem 4: Arm
Lead Engineer: Kirk Marquard (ME)
Support: Cortney Ross (ME)
Subsystem 5: SBC/Components
Subsystem 6: Power Components
Subsystem 7: Audio/Speaker and Components
Subsystem 8: Touch screen

4. Project Overview
Our customer, Donna, is a mentally handicapped young adult who is in a motorized wheelchair. She has speech disabilities so she needs a special way to communicate with people who don’t know her well. She currently uses a book full of pictures that she and the staff that helps her is familiar with. Last year, a SD project designed a touch screen audio device to help her communicate with new people.

5. One Page Summary

6. Customer Needs Picture based Long Battery life User friendly system
Low obstruction of vision – size requirements
Left hand design
No interface with wheel chair controls
Female voice output
Durable and robust – impact testing
Upgradeability by staff
Adequate product size
Adequate product weight
User friendly GUI
The product system must be fast
The product requires a custom enclosure
The product must be colorful and girly
Weather resistant
Easily charged
Easily be able to get out of the way of a customer
Volume adjustment required
Fixed to wheelchair
Anti glare screen

7. Metrics/Specifications
Specification Number
Customer Need Number
Design Specification
Importance
Unit of Measure
Marginal Value
Ideal Value 1
4,10,14
Case Height 4
Inches
9" 2
Case Width
13" 3
Case Thickness
3" 11
Weight
Lbs
10lbs
7lbs 5
Screen Size
12"
10.5" 6 12
Image Hight
1"
1.5" 7
Image Width 8
Battery Life
Hours
6hrs
16hrs 9
13,12
Speed of System
Seconds
1sec
0.1sec 10
1,12,14,15
Appearance
List
9,12
Upgradable
Yes/No
Yes
Number of Batteries # 13
Widthstand Drop
40"
30" 14 16
Withstand Weather Elements 15
Widthstand Push Force
20lbs 19
Volume Range dB
60dB
90dB 17
1,9
Drive Space
Gbytes
1Gb
5Gb 18
Processor Speed
MHz
300MHz
500MHz
Widthstand Heat of System
Degrees Farenhight
80º
70º 20
Screen Resolution
Pixels
800x600
1024x768 21
1,12
Picture Font Size
Pts 22
12,9,17
Staff use
Subjective 23
5,18
Range of Reach (Ergonomics)
Drawing 24
Meyer Johnson Symbols Archive
# of symbols
250
500 25
Anti-glaring 26
8,16
Safety (Electric/Heat) 27
2,14
Number of Battery Bays 28
1,3
Screen Contrast
Cd/in2 29
3,9,12
User Manual 30
2,10,14
Battery Dimensions (Each)
4"x5"
2"x4" 31
6,14,18
Enclosure Mounting 32
4,6,18,20
Mounting removability 33
Voice Output
Male/Female
Female

9. Current Design: “Big Pink Box”

10. The “Big Pink Box” Needs Met (Pros) Needs Not Met (Cons) Picture based
Left hand design
Female voice output
User friendly GUI
The product must be colorful and girly
User friendly system
Low obstruction of vision – size requirements
Upgradeability by staff
Adequate product size
Adequate product weight
The product system must be fast
Easily charged
Fixed to wheelchair

11. Overall System Pugh Diagram
Narrowed Concepts A B C D
(reference)
Pink Box
Internal Entire System (Mini Pink Box)
Components Above With Battery Under Wheelchair
Components & Battery Under Wheelchair LCD Above
Selection Criteria
Weight
Rating
Weighted Score
Ease of use (staff)
90% 2
1.8 8
7.2 7
6.3
Battery Life 5
4.5 4
3.6
Obstruction Of View
85% 1
0.85
6.8 9
7.65 10
8.5
Charging Dificulty
60%
0.6 6 3
Charging Time
4.2
Mounting Weight
80%
0.8
6.4
Ease of Assembly Components
55%
2.75
1.65
3.3
4.4
Ease of Assembly System
2.2
Removability Entire System
50%
2.5
Removability Device
8.1
Adaptability To Wheel Chair
5.95
4.25
Cost
70%
5.6
4.9
Enviornment Resistable
Durability
Adjustability Device Arm
Total Score
40.15
78.45
81.40
86.40
Rank
Continue? No
Requires Customer Input

12. Computer Component Options
LN2440SBC
EBC-7000

13. Computer Component Options
Viewsonic
BitsyXB

14. Computer Component OptionsA B C D E
Pink Box
Viewsonic
LN2440SBC
EBC-7000
BitsyXb
Processor
520MHz Intel Bulverde
400 MHz Samsung S3C2440A Processor
32-bit Marvell PXA270 RISC processor at 520 MHz
Operating System
WinCE 5.0
Any
Memory
SDRAM 128MB
SDRAM 64MB
Audio
1-watt speaker
AC97 version 2.3 compliance interface
AC97, 16-bit stereo Codec
USB
Yes
CF/SD
Weight
6.4lb
1.5kgs
Dimensions
11.5" x 8.4" x 1"
3'' x 4''
210mm x 110mm x 45mm
3'' x 5''

15. Computer Components Pugh
Narrowed Concepts A B C D E
(reference)
Pink Box
Viewsonic
LN2440SBC
EBC-7000
BitsyXb
Selection Criteria
Weight
Rating
Weighted Score
Processor
70% 2
1.4 8
5.6
Low Power
90% 4
3.6
7.2 9
8.1
Cost
40%
3.2 7
2.8 1
0.4
Ease of Assembly
60% 3
1.8 5
5.4
50%
0.5 6
3.5
Dimensions
80%
0.8
6.4
Audio Support
95%
2.85
5.7
8.55
USB/CF/Other
4.9
6.3
Operating System
1.6
Total Score
20.65
43.60
41.60
53.55
48.75
Rank
Continue?

16. LCD Selection 12.1 Inch Open Frame Surface Acoustic Wave TouchScreen – Caltron Industries

17. LCD Screen Specs Model FBT-1212OTEAS FBT-1212OTEASU Touch Interface
serial port
USB port
LCD Panel
Display Panel
12.1 inch TFT LCD
Pixel Pitch
0.3075(H) x (V) mm
Max. Resolution
800 x 600 SVGA
Contrast Ratio
500:1 (typical)
Brightness
320 cd/m2  (typical, 80% of original brightness)
Uniformity
80% (typical)
Backlight MTBF
50,000 hours (typical at 25°C)
Response Time
25 ms (typical)
Display Colors
16 million
Viewing Angle
±70°L/R, +65°U, -45°D (typical at CR=5)
Video and Power
OSD Controls
Brightness, Contrast, Phase, Clock, Color, H&V position, Auto-tune, Recall
Input Signal
RGB analog 0.7V peak to peak
Video Input Connector
D-sub 15 pin analog
Scan Frequency
24-54kHz horizontal scan, Hz vertical refresh
Power Supply
AC/DC 12V power adapter, universal Volts
Mechanical and Environment
Operating Temperature
0~50°C [32~122°F]
Storage Temperature
-20~60°C [-4~140°F]
Humidity
85% (maximum)
Dimensions (WxHxD)
310 x 237.7 x 36.8 mm [12.2 x 9.36 x 1.45 inch]
Net Weight
1.4 Kg [3 Lb]

18. Power Components 16hr battery life
Many batteries connected together vs. one battery
Size requirements unknown
Specs from EBC-7000
+6V ~ 27V DC power
+12V connection bypass to backlight inverter board or other external devices
Real-time clock battery powered

19. Arm Concepts
See Separate Pages

20. Materials Selection

21. Materials Selection

22. Materials Selection

23. Materials Selection

24. Materials Selection

25. Case Design Ideas Two cases One case to sit in front of customer
Power cord to other case
Speakers
Brightness Control
One case to be secured under wheelchair
Power cord to battery

26. Docking Station Concept

27. Power Cord Between Cases
Audio
Visual/LCD
Touch screen
Power

28. GUI Concepts

29. GUI Concepts

30. GUI Concepts

31. GUI Concepts

32. GUI Concepts