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).
| Telematics GPS Navigation Articles>> |
Telematics and GPS Navigation
Telematics and vehicle fleet tracking and related tracking systems
by admin
9 Jun 2007 at 1:41am
The Tomtom satellite navigation system is ideal for those people who are always on the move into the unknown, providing nigh on pin point accuracy towards the destination...
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| PICK - The PICK operating system (referred to as "the PICK system" or simply PICK) is based around a unique demand-paged, multiuser time-sharing operating system, "multi-valued" database
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Tethered Trailer Tracking - Tracking with QUALCOMM's tethered trailer tracking unit, which sends trailer connect and disconnect events to the Mobile Unit in the tractor
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Yahoo! News Search Results for gps navigation
Yahoo! News Search Results for gps navigation
6 Jan 2009 at 9:00am
Most major carriers now offer GPS navigation services on a pay-per-day basis (as an alternative to purchasing a monthly subscription). But those services typically depend on cellular network connec...
7 Jan 2009 at 12:02am
The first Magellan GPS brand to be discussed is one designed for vehicle navigation: the Magellan Maestro.
6 Jan 2009 at 4:00am
The NCC, a leading manufacturer of consumer electrical devices, plans to demonstrate their new line of officially-licensed Goodyear-branded GPS navigation units at the upcoming CES convention in La...
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