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GPS ON-LINE TRACKING SYSTEM
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GPS Tracking System By GPS Tracking System technology (TTG, ETE, etc.) the associate company can be permanently in touch with the current situation of goods and products, as well as know the estimated arrival time and keep a detailed tracking of the operations report, in all ways: EXW (Ex Works), FCA Free Carrier, FAS (Free Alongside Ship), FOB (Free on Board), CFR (Cost and Freight), CIF (Cost, Insurance and Freight), CPT (Carriage Paid To), CIP (Carriage and Insurances Paid to), DAF (Delivered At Frontier), DES (Delivered Ex Ship), DEQ (Delivered Ex Quay), DDU (Delivered Duty Unpaid) and DDP (Delivered Duty Paid). |
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What is GPS?
The Global Positioning System (GPS) is a constellation of satellites that orbit the earth twice a day, transmitting precise time and position (latitude, longitude and altitude) information. With a GPS receiver, users can determine their location anywhere on the Earth. Position and navigation information is vital to a broad range of professional and personal activities, including boating, aviation, vehicle tracking, navigation and more. |
The complete system
consists of 24 satellites orbiting about 12,000 miles above the Earth, and five
ground stations to monitor and manage the satellite constellation. These satellites
provide 24-hour-a-day coverage for both two-and three-dimensional positioning
anywhere on Earth. Development of the $10 billion GPS satellite navigation system
was begun in the 1970s by the US Department of Defense, which continues to manage
the system, to provide continuous, worldwide positioning and navigation data to
US military forces around the globe.
However, GPS has an even broader civilian, commercial application. To meet these
needs, GPS offers two levels of service, one for civilian access and the second
encrypted for exclusive military use. The GPS signals are available to an unlimited
number of users simultaneously, and there is no charge for using the GPS Satellites
either.
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What
is Differential GPS (DGPS)? |
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The difference is known as a correction and this correction is broadcast to other GPS receivers in the area which are capable of receiving it and applying it to improve the accuracy of their own calculated positions. As GPS errors are constantly and randomly changing, both in magnitude and direction, the corrections must be updated and rebroadcast at least every second to maintain the DGPS accuracy.
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How
does GPS Work? |
Similarly, time can be displayed in the Universal Time Standard (UTC) in Local Time or in Greenwich Mean Time (GMT). The implications of this facility are enormous. Put simply, once you've established a universal grid over the Earth, a wide range of useful facilities become possible, for example, locating any object on earth - a vehicle, species of a tree, manhole, fire hydrant etc. There is no limit to what can be located. Whether you're navigating on land, sea or air, GPS will help get you from A to B, anywhere in the world at any time.
Identifying and cataloging: A particular object(s) may be recorded in a GIS (Geographic Information System), database. Relevant information about the object(s) is recorded, saved and used later in analysis, map making or decision making.
Tracking and monitoring: The progress of anything travelling may be tracked (e.g. planes, trains, missiles, cars, trucks, people, animals etc).
Synchronising and Co-ordinating: In addition to providing location data, GPS provides precise time data which means you can use GPS to time-stamp information such as film images and sound, so that information can be synchronised later.
Who Uses GPS?
GPS receivers provide positioning, velocity and navigation information for a variety of markets and purposes. Anyone who needs to know the precise time or the exact location of people or objects will benefit from GPS. In turn, this information can be used in charting and mapping, plotting a course, navigating from point to point, tracking vehicle movement, locating previously identified sites or any number of similar functions.
1. Marine GPS receivers are providing to be invaluable aids in both recreational and commercial boating and sailing.
2. Land-based professions from survey to exploration employ GPS to provide vital positioning and location information. Surveyors, natural resource managers, wildlife managers, geologist, geographers, mappers, forestry managers, search and rescue teams, public safety professionals, archaeologists, utility managers, and oil, gas and mineral explorers are just some of the people taking advantage of GPS.
3. Other applications may include avionics and other outdoor recreational activities such as backpacking, camping, hiking, mountain biking and snowmobiling.
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