Handheld Campus Tour Guide
Michael Boyer
Advisor: Professor John Spinelli
Outline
• Project motivation
• Design requirements
• Localization
• System design
• Future work
Project Motivation
• Tours offered to prospective students:– Student-guided tours– Self-guided tours:
• Goal: Create a system that will replace and improve upon the self-guided tours
Functional Requirements
• Localization accuracy:– Ten meters outdoors– Five meters indoors (in selected buildings)
• Visual representation of location
• Contextual information
Non-Functional Requirements
• Price: less than $1,000
• Size: handheld
• Power:– Rechargeable– At least two hours per charge
• Easy to use
Localization
• Need to determine the location:– In real-time– In three-dimensions– Both indoors and outdoors
• GPS
• GSM
GPS
• Global Positioning System
• Satellite-based localization
• Available outdoors worldwide
• Not available indoors
GSM
• Global System for Mobile Communications
• Most widely used cell phone standard
• Available indoors and outdoors
• Designed for voice transmission, not localization…
GSM Training
GSM Localization
Hardware
Sony Ericsson GM28 GSM Modem:
Garmin iQue 3600 PDA:
Total Cost: < $650
$420
$220
Position Estimation
GPSTracker
Position Estimate
(Latitude/Longitude)
GSMTracker
Position Estimate
(Pixel Location)
PositionConverter
Position Estimate
(Pixel Location)
TrackerPosition Estimate
(Pixel Location)
User Interface
Outdoors(no nearby landmarks)
Indoors
User Interface
ButtonPress
Future Work
• Get GSM modem working– Take training data– Test localization accuracy
• Implement route planning
• Improve localization algorithm
• Alternate handheld technology
• Alternate location
Acknowledgements
• Professor John Spinelli
• Professor James Hedrick
• Professor Aaron Cass
• Ian Melnick
• Josh Davis & David Pheasant
Questions?