GPS (Global Positioning System) has been widely known to the public as one of the most accurate guide to the current location. No wonder so many vendors are now vying mobile phone to pair the GPS on the new series. This is caused by one of nature GPS assessed by many as more accurate and flexible to changes that occur.
The working principle of GPS is the measurement of the distance (range) between the GPS satellite receivers. Satellites also provide location information when it’s orbit where the satellite is above the earth’s surface. GPS can work like this, if we know our exact distance from the satellites in space, then we can assume that we be in a point on an imaginary surface with a radius equal to the radius of the satellite. If we know our exact distance from two satellites, it can be assumed that we are at a point in the intersection between the two satellites. If we do This third measurement gives two plausible outcomes locations where we really are. GPS receivers have mathematical methods to calculate and eliminate locations that do not make sense.
In general, many people are now familiar with GPS via mobile phones owned. But actually own GPS equipment has been specially developed long before GPS technology embedded in mobile phones. Development of GPS equipment itself was originally more of an auxiliary mapping tool that is used for various purposes of research and technology, both in the mines, plantations, forests, geophysical and defense of national security. But in its development, it turns out the utility of GPS technology in general is in great demand, so that ultimately the technology is widely used. Broadly speaking, the equipment from the GPS itself is divided into several types according to the needs of the wearer, the GPS Tracking System, GPS Geodetic, GPS Mapping (GIS) and GPS Bluetooth.
Among the many types of GPS, which is much known to the public is a GPS Tracking System or better known as the Vehicle Tracking (Fleet Management System). GPS type is usually mounted on vehicles, especially vehicles for business-commercial purposes, to monitor the extent to which the existence of such vehicles. But now this equipment can also be attached to private cars. GPS technology is constantly being developed, so a lot of other new devices that keep popping up. The use of GPS is not always with mobile phone use, because at this time this equipment has been sold freely. Prices and facilities offered even more variety too, from which comes with a compass, automatic routing, until the promised waterproof and all weather conditions is also available.