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

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

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

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.

One Page Summary

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

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

Current Design: “Big Pink Box”

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

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

Computer Component Options LN2440SBC EBC-7000

Computer Component Options Viewsonic BitsyXB

Computer Component Options   A 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'' http://www.embedian.com/index.php?main_page=product_info&products_id=194

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?

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

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 0.3075(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, 50-90 Hz vertical refresh Power Supply AC/DC 12V power adapter, universal 100-240 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]

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

Arm Concepts See Separate Pages

Materials Selection

Materials Selection

Materials Selection

Materials Selection

Materials Selection

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

Docking Station Concept

Power Cord Between Cases Audio Visual/LCD Touch screen Power

GUI Concepts

GUI Concepts

GUI Concepts

GUI Concepts

GUI Concepts