1 / 14

Global Positioning System (GPS)

Global Positioning System (GPS). Megan Woodis. 2008 Super Bowl Commercial. YouTube Commercial You can see that GPS is taking over our generation because it is a function that is taking over the way we travel in every aspect “Follow the Leader” slogan. What is a GPS?.

marinel
Download Presentation

Global Positioning System (GPS)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Global Positioning System(GPS) Megan Woodis

  2. 2008 Super Bowl Commercial YouTube Commercial • You can see that GPS is taking over our generation because it is a function that is taking over the way we travel in every aspect • “Follow the Leader” slogan

  3. What is a GPS? • GPS stands for Global Positioning System • “…is a satellite based navigation system made up of a network of 24 satellites placed into orbit by the US Department of Defense.” • Available for anyone to use • Works 24 hours a day • No cost except the price • Need a portable receiver (hand-held device, car device, etc) to connect with the satellite • Indoors, underwater, or underground = no good http://www8.garmin.com/aboutGPS/

  4. Data Collection • 2D Positioning - need three satellites • Latitude and Longitude • 3D Positioning - need four or more satellites • Latitude, Longitude, Altitude • Bonus Features: • Speed • Distance • Sunrise/Sunset Time • Specific Destination Locations • Trilateration (simple mathematical principle)

  5. Uses and Users • Military (originally and still) • The Coast Guard uses DGPS • Differential GPS • Very accurate form of GPS • Navigation and Aircraft • Civilian use • Travelers • Teenagers who are learning to drive • Those who get lost easily • Business Workers (such as someone who needs to see clients frequently in the area) • Tracking Systems for Companies • Teenager Tracking Units • Cars • Cell Phones

  6. Tracking Systems • Companies can use different types of tracking systems • Cell Phone • Receiver/Devices • Computer • The chips track where a driver or personnel may be located to keep the company up to date • UPS is a good example of who uses a tracking system on their drivers and packages to offer a reliable service to its customers • Cost can be expensive but worthwhile than those on a cell phone • Provide drivers who are lost with assistance to make the delivery on time • Cell phone eats up battery life and minimal coverage

  7. Short Video • Still might be asking how it works? • Here is a Howstuffworks.com video that explains GPS in straightforward terms How a GPS works!

  8. Satellite Facts • Revolve around the Earth in two rotations per day • Located 12,000 miles above Earth • 7,000 miles per hour • 24 of the 27 are working (3 for backup) • 3,000 – 4,000 lbs. each • Solar powered

  9. Interruptions to the Satellite • There are some factors that can affect the satellites performance and job to relay the data to the receivers such as: • Ionosphere and Troposphere Delays • Signal Multipath • Receiver Clock Errors • Orbital Errors • Number of Satellites Visible • Satellite Geometry/Shading • Intentional Degradation of the Satellite Signal http://www8.garmin.com/aboutGPS/

  10. Ionosphere and Troposphere: Signal that slows down in transition through the atmosphere Signal Multi-path: Affected by things in the surrounding area (such as rocky mountains or buildings) Receiver Clock: Clocks do not match up on the receiver and the satellite Number of Visible Satellites: The more the better Satellite Geometry/Shading: Need to be spaced properly; line/tight group = bad signals Intentional Degradation of Satellite Signal: Specific for the Military use but affects the civilian populations use of GPS Interruptions Continued…

  11. Interesting Facts: • “The first GPS satellite was launched in 1978.” • “A full constellation of 24 satellites was achieved in 1994.” • “Each satellite is built to last about 10 years. Replacements are constantly being built and launched into orbit.” • “A GPS satellite weighs approximately 2,000 pounds and is about 17 feet across with the solar panels extended.” • “Transmitter power is only 50 watts or less.” Taken Directly From: http://www8.garmin.com/aboutGPS/

  12. Comparison • Consumers should know basic knowledge when wanting to purchase a decent GPS device in order to live up to their expectations • There are a variety of prices and functions that each system has to offer from • Handheld • Cell phone • Built in maps • Touch screen • Color screen • Memory capacity • Average battery life • Voice guidance • Traffic updates • Location specifics • Backlights • MP3 player/iPod/FM compatibility

  13. Comparison Continued • Top Brands found: Garmin, Magellen, Tom Tom, and Navigon • Helpful website that lists a variety of receiver devices with detailed descriptions, prices on various websites, star ratings, and even reviews GPS Comparison Page

  14. Works Cited • http://www.thegpsstore.com/?ref=yssp • http://www.bizrate.com/globalpositioningsystemsgps/index__kw--gps+systems__qcid--5836890.html • http://www.magellangps.com/about/timeline.asp • http://www8.garmin.com/aboutGPS/ • http://www.colorado.edu/geography/gcraft/notes/gps/gps_f.html • http://www.howstuffworks.com/gps.htm • http://www.gtctracking.com/services/faq.php • http://www.gpsinformation.org/dale/theory.htm • http://upload.wikimedia.org/wikipedia/commons/8/8d/GPS_Satellite_NASA_art-iif.jpg • http://www.globalcars.com.au/site/images/REDSPOT_tomtom.jpg • http://www.onr.navy.mil/Focus/spacesciences/images/satellites/danagpsorbits.gif • http://www.globalsecurity.org/military/library/report/call/call_91-3_ch1fig3.gif • http://blog.tmcnet.com/blog/tom-keating/images/garmin-nuvi-700.jpg • http://www.linuxjournal.com/files/linuxjournal.com/linuxjournal/articles/074/7467/7467f1.inline.png • http://www.youtube.com/watch?v=Vy5UaB936ms&feature=related

More Related