Telematics GPS Definition
The Global Positioning System, usually called GPS (the
US military refers to it as NAVSTAR), is a satellite
navigation system used for determining one's precise location and
providing a highly accurate time reference almost anywhere on Earth
or in Earth orbit. It uses an intermediate circular orbit (ICO) satellite
constellation of at least 24 satellites.
The GPS system was designed by and is controlled by the United States
Department of Defense and can be used by anyone, free of charge.
The GPS system is divided into three segments: space, control, and
user. The space segment comprises the GPS satellite constellation.
The control segment comprises ground stations around the world that
are responsible for monitoring the flight paths of the GPS satellites,
synchronizing the satellites' onboard atomic clocks, and uploading
almanac data for transmission by the satellites. The user segment
comsists of GPS receivers used for both military and civilian applications.
A GPS receiver (GPSR) decodes time signal transmissions
from multiple satellites and calculates its position by trilateration.
The cost of maintaining the system is approximately US$400 million
per year, including the replacement of aging satellites. The first
of 24 satellites that form the current GPS constellation (Block
II) was placed into orbit on February 14, 1989. The 50th GPS
satellite since the beginning in 1978 was launched March 21, 2004
aboard a Delta II rocket (see article in External links section,
below).
| Load Assignment Macro - Macro containing all of the load information
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Driver performance monitoring system - Tracks hours of service (HOS), highway use statistics by state, speed limit compliance, braking incidence, route compliance, etc.
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gps navigation - Yahoo! News Search Results
gps navigation - Yahoo! News Search Results
25 Jan 2012 at 6:01am
NEW YORK, Jan. 25, 2012 /PRNewswire/ -- Reportlinker.com announces that a new market research report is available in its catalogue: Global GPS Navigation and LBS Market 2010-2014 http://www.reportl...
1 Feb 2012 at 9:22am
CAMBRIDGE, UNITED KINGDOM-- - Apple and Android users who enjoy the outdoors, now have a powerful, dedicated GPS navigation tool for hiking, mountain biking and any land activity with the new ViewR...
31 Jan 2012 at 6:08am
ROCKVILLE, MD-- - MarketResearch.com has announced the addition of the new report "Global GPS Navigation and LBS Market 2010-2014," to their collection of Electronics market reports. For more ...
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