1. GPS Navigation System October 12, 2010 Timothy Davis Advisor: Frank Hludik

2. GPS Navigation System Additional independent study to accompany senior project to include: – In depth explanation of the different aspects of GPS and how they work – Factors that could affect the usability and accuracy of the GPS system The Global Positioning System

3. Space Segment – 30 satellites that transmit position and time – Satellites are in non-uniform position and time – 6 are visible from any point on earth – Continuously broadcasting messages to GPS receivers on earth GPS Navigation System Global Positioning System Wikipedia

4. Control Segment – World-wide – Maintain satellites proper orbit – Upload navigational data to satellites – Monitor health and status of satellites – Adjust Orbit Of Satellites GPS Navigation System GPS Explained: The Control Segment

5. User Segment – Most receivers can use at least 12 satellites simultaneously – Receives navigation messages from satellites – Calculates the transmission time of navigation messages – Receivers use data to calculate position, time, speed and direction of travel GPS Navigation System Global Positioning System Wikipedia

6. GPS Navigation System Problem Statement – Design and implement a compact, low power hand held GPS Navigation System for use on the University Of New Hampshire Campus

7. GPS Navigation System Design Objectives – Indicate current location on a map of the UNH Campus – Display current date and time – Display the number of satellites it is using to calculate location – Display the speed and direction of travel – Display current altitude – Hand held (small, battery powered)

8. GPS Navigation System Direction N.W. Speed 5 mph Satellites 4 GPS Map Of The University Of New Hampshire Elevation 200m Time 09:37:05

9. GPS Navigation System

11. Time LineSeptemberOctoberNovemberDecember 613202741118251815226132027 Proposal Design Order Parts Implement LCD Controller Implement GPS Controller Implement Memory Controller First Semester Timeline

12. GPS Navigation System Time LineJanuaryFebruaryMarchApril 3101724317142128714212841118 Design Mapping Method/Coordinat e System Implement Mapping Method/Coordinat e System Integration Testing Present At URC Second Semester Timeline

13. GPS Navigation System Questions?