1. 1 st Design Review Tuesday, January 29 th, 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) Support: Kirk Marquard (ME) Subsystem 3: Graphical User Interface Lead Engineer: Achilles Tziazas (CE) Support: Amy Koster (ID) Support: Rachel Lepkowski (ID) Subsystem 4: Arm Lead Engineer: Kirk Marquard (ME) Support: Cortney Ross (ME) Subsystem 5: SBC/Components Lead Engineer: Achilles Tziazas (CE) Subsystem 6: Power Components Lead Engineer: Achilles Tziazas (CE) Subsystem 7: Audio/Speaker and Components Lead Engineer: Kirk Marquard (ME) Subsystem 8: Touch screen Lead Engineer: Achilles Tziazas (CE) Support: Cortney Ross (ME)

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 1. Picture based 2. Long Battery life 3. User friendly system 4. Low obstruction of vision – size requirements 5. Left hand design 6. No interface with wheel chair controls 7. Female voice output 8. Durable and robust – impact testing 9. Upgradeability by staff 10. Adequate product size 11. Adequate product weight 12. User friendly GUI 13. The product system must be fast 14. The product requires a custom enclosure 15. The product must be colorful and girly 16. Weather resistant 17. Easily charged 18. Easily be able to get out of the way of a customer 19. Volume adjustment required 20. Fixed to wheelchair 21. Anti glare screen

7. Metrics/Specifications Specification NumberCustomer Need NumberDesign SpecificationImportanceUnit of MeasureMarginal ValueIdeal Value 14,10,14Case Height4Inches9" 24,10,14Case Width4Inches13" 34,10,14Case Thickness4Inches3" 411Weight3Lbs10lbs7lbs 54,10,14Screen Size2Inches12"10.5" 612Image Hight3Inches1"1.5" 712Image Width3Inches1"1.5" 82Battery Life5Hours6hrs16hrs 913,12Speed of System5Seconds1sec0.1sec 101,12,14,15Appearance1List 119,12Upgradable4Yes/NoYes 122Number of Batteries2#42 138Widthstand Drop5Inches40"30" 1416Withstand Weather Elements5Yes/NoYes 1516Widthstand Push Force5Lbs10lbs20lbs 1619Volume Range3dB60dB90dB 171,9Drive Space2Gbytes1Gb5Gb 1813Processor Speed5MHz300MHz500MHz 1914Widthstand Heat of System5Degrees Farenhight80º70º 201Screen Resolution3Pixels800x6001024x768 211,12Picture Font Size4Pts1216 2212,9,17Staff use5Subjective 235,18Range of Reach (Ergonomics)4Drawing 241,9Meyer Johnson Symbols Archive5# of symbols250500 2522Anti-glaring3Yes/NoYes 268,16Safety (Electric/Heat)5Yes/NoYes 272,14Number of Battery Bays2#42 281,3Screen Contrast3Cd/in 2 293,9,12User Manual5Yes/NoYes 302,10,14Battery Dimensions (Each)4Inches4"x5"2"x4" 316,14,18Enclosure Mounting4Yes/NoYes 324,6,18,20Mounting removability4Yes/NoYes 337Voice Output3Male/FemaleFemale

9. Current Design: “Big Pink Box”

10. The “Big Pink Box” Needs Met (Pros) Needs Not Met (Cons) 1. Picture based 5. Left hand design 7. Female voice output 12. User friendly GUI 15. The product must be colorful and girly 3. User friendly system 4. Low obstruction of vision – size requirements 9. Upgradeability by staff 10. Adequate product size 11. Adequate product weight 13. The product system must be fast 17. Easily charged 20. Fixed to wheelchair

11. Overall System Pugh Diagram Narrowed Concepts A BCD (reference) Pink Box Internal Entire System (Mini Pink Box) Components Above With Battery Under Wheelchair Components & Battery Under Wheelchair LCD Above Selection CriteriaWeightRating Weighted ScoreRating Weighted ScoreRating Weighted ScoreRating Weighted Score Ease of use (staff)90%21.887.276.37 Battery Life90%54.543.687.28 Obstruction Of View85%10.8586.897.65108.5 Charging Dificulty60%10.663.65353 Charging Time60%10.674.25353 Mounting Weight80%10.886.497.2108 Ease of Assembly Components55%52.7531.6563.384.4 Ease of Assembly System55%0084.452.7542.2 Removability Entire System50%8494.552.542 Removability Device90%87.298.19 109 Adaptability To Wheel Chair85%0097.6575.9554.25 Cost70%85.664.274.985.6 Enviornment Resistable85%54.2597.659 9 Durability90%87.254.576.398.1 Adjustability Device Arm80%005475.697.2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total Score40.1578.4581.4086.40 Rank Continue?NoRequires Customer Input

12. Computer Component Options LN2440SBC EBC-7000

13. Computer Component Options Viewsonic BitsyXB

14. Computer Component Options ABCDE Pink BoxViewsonicLN2440SBCEBC-7000BitsyXb Processor 520MHz Intel Bulverde400 MHz Samsung S3C2440A Processor 32-bit Marvell PXA270 RISC processor at 520 MHz Operating System WinCE 5.0Any Memory SDRAM 128MBSDRAM 64MB SDRAM 128MB Audio 1-watt speaker AC97 version 2.3 compliance interfaceAC97, 16-bit stereo Codec USB Yes CF/SD Yes Weight 6.4lb 1.5kgs Dimensions 11.5" x 8.4" x 1"3'' x 4''210mm x 110mm x 45mm3'' x 5'' http://www.embedian.com/index.php?main_page=product_info&products_id=194

15. Computer Components Pugh Narrowed Concepts A BCDE (reference) Pink BoxViewsonicLN2440SBCEBC-7000BitsyXb Selection CriteriaWeightRating Weighted ScoreRating Weighted ScoreRating Weighted ScoreRating Weighted ScoreRating Weighted Score Processor70%21.485.68 8 8 Low Power90%43.64 87.298.19 Cost40%83.272.893.672.810.4 Ease of Assembly60%31.8533 95.453 Weight50%10.56373.58484 Dimensions80%10.886.48 75.67 Audio Support95%32.8565.70098.559 USB/CF/Other70%74.996.39 9 9 Operating System80%21.697.29 9 9 Total Score20.6543.6041.6053.5548.75 Rank Continue ?

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

17. LCD Screen Specs ModelFBT-1212OTEASFBT-1212OTEASU Touch Interfaceserial portUSB port LCD Panel Display Panel12.1 inch TFT LCD Pixel Pitch0.3075(H) x 0.3075(V) mm Max. Resolution800 x 600 SVGA Contrast Ratio500:1 (typical) Brightness320 cd/m 2 (typical, 80% of original brightness) Uniformity80% (typical) Backlight MTBF50,000 hours (typical at 25°C) Response Time25 ms (typical) Display Colors16 million Viewing Angle±70°L/R, +65°U, -45°D (typical at CR=5) Video and Power OSD ControlsBrightness, Contrast, Phase, Clock, Color, H&V position, Auto-tune, Recall Input SignalRGB analog 0.7V peak to peak Video Input ConnectorD-sub 15 pin analog Scan Frequency24-54kHz horizontal scan, 50-90 Hz vertical refresh Power SupplyAC/DC 12V power adapter, universal 100-240 Volts Mechanical and Environment Operating Temperature0~50°C [32~122°F] Storage Temperature-20~60°C [-4~140°F] Humidity85% (maximum) Dimensions (WxHxD)310 x 237.7 x 36.8 mm [12.2 x 9.36 x 1.45 inch] Net Weight1.4 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

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 Power cord to other case Brightness Control

26. Docking Station Concept

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

28. GUI Concepts