GPS and Cell Phone Technology FRS 142 The
- Slides: 15
GPS and Cell Phone Technology FRS 142 The Science and Application of GPS Professor Edward Groth Jonathan Nussbaum
How Cell Phones Can Improve GPS • DGPS Coverage • Receiver Technology • Marketability
DGPS Coverage • Current DGPS Coverage for the U. S. and Canada: • Detailed View: West Coast East Coast
DGPS Coverage • DGPS range can extend to 250 miles. • However, conditions often limit it to as small a range as 25 miles • What could boost this coverage?
DGPS Coverage • Cingular
DGPS Coverage • Verizon
DGPS Coverage • Sprint
DGPS Coverage • DGPS stations can be relatively inexpensive at low power
DGPS Coverage • Are the benefits worth the cost? – Yes: – – – Extra coverage in rural areas New towers not needed High power DGPS could penetrate buildings Cell companies could cut deal with GPS or Government Coverage discrepancies worse in other countries – No: – Non-populated areas still not covered – Cell companies may not be compensated – Planned DGPS expansion
Receiver Technology • Three Aspects that make an Impact: 1. Handheld Technologies: – – Smaller Screens Touch Pads Full Keyboards Long Lasting Batteries
Receiver Technology – 2. Internet Connections – Regular Updates – Streaming video – 3. Power – Longer lasting batteries – Easy to use chargers – Power Conservation Modes
Receiver Technology • What does this mean? • • Longer lasting Easier to use and read Updated map access Real time plotting
Receiver Technology • Potential Problems: • Strain on batteries • Cost of Service & Roaming • Larger receivers • Solutions: • Subscription to offset cost • Subscription to most used network
Marketability – The Cell Phone Phenomena • Make the GPS receiver essential: – Urban – Suburban – Rural
Cell Phone Technology • • GPS easier to use, with more features Real time maps and photos of the area DGPS Coverage anywhere A potential “ground constellation” • GPS Service Indoors, in the City
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