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Team WEOP (Wireless Entertainment & Ordering Pager). ECE 4007 – L03 Preliminary Design Review Presentation. Team Members: Earl Cuenca Alex Groleau Kirk Poucher Omar Sardar Advisor: Dr. Smith. School of Electrical and Computer Engineering Georgia Institute of Technology.
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Team WEOP(Wireless Entertainment & Ordering Pager) ECE 4007 – L03 Preliminary Design Review Presentation Team Members: Earl Cuenca Alex Groleau Kirk Poucher Omar Sardar Advisor: Dr. Smith School of Electrical and Computer Engineering Georgia Institute of Technology
Project Objective s • Develop interactive paging system • Touchscreen pager devices • Versatile application modules • 802.11b/g wireless • Communication framework • Server • Terminal Displays October 18, 2007
Customer Benefits • Enhance ordering process and overall customer satisfaction • Increase revenue via advertising • Internal advertisements (impulsive) • External advertisements (local businesses) • Unite current service systems
End-User Benefits • Provide entertainment during wait time • Order appetizers, drinks, etc. wirelessly • Display bill, handle tipping, payment • Enhanced service environment interaction October 18, 2007
Potential Customers Restaurants Hotels Hospitals Bars & Clubs Airlines October 18, 2007
Cost Overview • 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 October 18, 2007
Pager 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
Pager 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
VIA EPIA PX10000G Pico-ITX October 18, 2007
LCD Touchscreen LCD35VGATS (lcdtft.com) • 3.5” Touch Screen • 12V DC source • Integrated LED backlight • Resolution: 640 x 480 October 18, 2007
Pager Device Power Schematic October 18, 2007
Pager 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 October 18, 2007
Pager 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 October 18, 2007
Pager 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 October 18, 2007
Software 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
Communication Framework • 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
Server 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
Current Status and Restraints • SBC unit, PSU has been ordered • Narrowing LCD options • Hard to get in touch with manufacturers • Budget concerns • Developing software applications • Determining power management options • LCD’s consume a lot of power • Charging controller and battery
Future Work • Develop stack-type charging system • Design more compact computing system • Create water/shock-proof casing