GPS

Global Positioning System


Brief History :-The Global positioning System (GPS), formally known as the Navstar Global Positioning System, was first time used by united states to enhance the effectiveness of their allied military forces in 1973. GPS was designed for dual use purpose. Now days GPS is being very popular as it is emerging as a Global Information Infrastructure for illustrating maps and surveying to international air traffic management and automatic vehicle location (AVL).

Enough of the history Crap:). Lets go for an Intro:
GPS or Global Positioning System is a technology for locating a person or an object in three dimensional space anywhere on the Earth or in the surrounding orbit.

Uses:
Mapping
Fishing purposes like tracking shoals of fish and predicting their movements
Fleet Vehicle Management:- Fleet vehicle management system is also known as Automatic vehicle locator (AVL), in which commercial and private trucking companies use it for tracking their cars, trucks, buses and other equipment to check it out whether these are following the appropriate route and condition according to contract signed by the transport owner and the customer.

Emergency Management:- GPS technology is very helpful for Police, Fire Brigade, emergency medical service units as they can find the exact location and can control over the situation before being beyond the limit. Police car, Fire truck or Ambulance can find the shortest route to reach to the destination point.

Consumer Vehicle:- GPS technology is also very helpful for recovery of theft vehicle, in which GPS system is enabled. Police can find it easily due to receiver; the user component part is applied in it.

Wildlife Management:- Scientist uses this technique for the counting of the wild animals especially endangered species like Tiger, Panda Bear, Elephant etc.

Engineering:- Civil engineers used this technique for making tunnels, bridges etc. For example:- Britain and France used this technique for constructing a tunnel connecting both of them.

AND NOW THE THE INTRESTING PARTS MY PALS :))

The GPS system works with the help of a satellite network. Each of these satellites broadcasts a specific signal quite like a normal radio signal. These signals that carry the location data are received by a low cost aerial which is then decoded by the GPS software.

The software is able to identify the satellite, its location in space and the time the signals take to travel from each satellite. The software then processes the information it receives from each satellite to calculate the position of the receiver. The overall process is quite like traditional navigation methods. If you can draw lines from three predefined places on the map to where you are, you can identify your position on map as the intersection of these lines, within a margin of error.

hOPE THIS WAS HELPFUL AND INTRSTING GUYS
TC
SREE :)