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Team WEOPTeam WEOP(Wireless Entertainment & Ordering Pager)(Wireless Entertainment & Ordering Pager)
ECE 4007 – L03ECE 4007 – L03Preliminary Design Review Preliminary Design Review
PresentationPresentation Team Members:
Earl Cuenca Alex GroleauKirk Poucher Omar Sardar
Advisor: Dr. Smith
School of Electrical and Computer Engineering
Georgia Institute of Technology
Georgia Institute of TechnologyTeam WEOP
Project Objectives
Develop interactive paging systemTouchscreen pager devicesVersatile application modules802.11b/g wirelessCommunication frameworkServer Terminal Displays
October 18, 2007
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Customer Benefits Customer Benefits Enhance ordering process and overall
customer satisfaction Increase revenue via advertising
Internal advertisements (impulsive)External advertisements (local businesses)
Unite current service systems
Georgia Institute of TechnologyTeam WEOP
End-User BenefitsEnd-User Benefits Provide entertainment during wait time Order appetizers, drinks, etc. wirelessly Display bill, handle tipping, payment Enhanced service environment
interaction
October 18, 2007
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Potential CustomersPotential Customers Restaurants Hotels Hospitals Bars & Clubs Airlines
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Cost OverviewCost OverviewComponents Prototype Cost
Single Board Computer $230.00
Touch LCD Kit $150.00
Windows XP/CE Embedded $1.00
Casing $30.00
Misc. cable/connectors $15.00
Rechargeable batteries $50.00
Total $486.00
Estimated Selling Price (per unit)
$350.00
Basic WEOP System Price - $4000 10 Interactive pagers 1 Charging Rack Basic software application modules Assumes existing server, wireless network, and optional terminal displays
Additional devices and applications for sale
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Production SpecsPager Device Production Specs
Physical Size: 3.5” x 3.5” x 1.5” Battery Life: 3.5 Hours (per charge) Wireless Range: 250 ft (from access point) Weight: 20 ounces Memory: 1 GB
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Prototype GoalsPager Device Prototype Goals
Physical Size: 7.5” x 7.5” x 3.5” Operable on battery power Functional communication between device
and server Complete software package Battery charging operation
Georgia Institute of TechnologyTeam WEOP
VIA EPIA PX10000G Pico-ITXVIA EPIA PX10000G Pico-ITX
October 18, 2007
Georgia Institute of TechnologyTeam WEOP
LCD Touchscreen
LCD35VGATS (lcdtft.com) 3.5” Touch Screen
12V DC source
Integrated LED backlight
Resolution: 640 x 480
October 18, 2007
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Power SchematicPager Device Power Schematic
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Power SupplyPager Device Power Supply
MAX 1873 Current Limited Li-ion
charger controller Up to 26V input voltage 2-, 3-, or 4-cell Li-ion
battery charger Adjustable battery
regulation voltage limit
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Power SupplyPager Device Power Supply
picoPSU-120-WIR 12V to 32V wide input
DC-DC ATX power supply
Provides 100W/120W peak of power
100% silent, fanless
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Device Power RegulatorPager Device Power Regulator
MAXIM Linear Regulator MAX1658/MAX16595
2.7V to 16.5V Wide Input Voltage Range
Adjustable 1.25V to 16V output
High output current: 350mA
Reverse Battery Protection
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Software DevelopmentSoftware Development Visual Studio 2005 Microsoft .Net Compact Framework Windows XP Embedded AnkhSVN Subversion repository Java coding standards Significant unit testing C# programming language Device virtualization
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Manages communication between pager devices,
terminal displays, and server
Fat server, thin client construction
Distributed software modules
Most operations handled on server
Terminal displays also function as clients
3rd party system integration plugins
Communication FrameworkCommunication Framework
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Server FunctionalityServer Functionality
Manage terminal displays
Add/remove pagers from system
Add/remove application modules on pagers
Manage global and module settings
View/edit current and pending operations
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Menu and InterfacePager Menu and Interface
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Menu and InterfacePager Menu and Interface
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Menu and InterfacePager Menu and Interface
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Pager Menu and InterfacePager Menu and Interface
Georgia Institute of TechnologyTeam WEOP October 18, 2007
Current Status and RestraintsCurrent Status and Restraints
SBC unit, PSU has been ordered Narrowing LCD options
Hard to get in touch with manufacturersBudget concerns
Developing software applications Determining power management options
LCD’s consume a lot of powerCharging controller and battery
Georgia Institute of TechnologyTeam WEOP
Future Work
Develop stack-type charging system Design more compact computing system Create water/shock-proof casing