CAR NAVIGATION SYSTEM
It is increasingly common to see cars with a small device placed in one part of the board, in which we can see a screen with a kind of map that is moving and making a map. What is it? For some confused assumed to be a new MP3 player device that hears only the driver but no ... is more subtle and interesting.
This is an automotive GPS, which has the ability to make a career of a very precise way in which the driver only has to go along the path to it in the screen. No matter where the vehicle or part of the city or country is the driver, the vehicle GPS will know to say the best way to reach your destination.
A navigation system is a GPS vehicle designed to "guide" in an automobile. Unlike other GPS systems, it uses position data obtained from satellites to locate the user on a street system mapped in a database. Using information from the files of streets in this basis, the unit can give directions from other points throughout the city.
This is being especially useful to the service sector using their cars for work, such as, taxis, buses, etc.. We no longer need to memorize every last street, or ask a passenger to guide us in the end of the journey, the GPS will be our guide. Lately, the use of this device is being used by individuals in a growing, giving a guided unbeatable service.
But how does this technology? The answer is simple yet complex. The following is a precise explanation of what it is and how you can understand how it works:
GPS (Global Positioning System) is a satellite-based navigation and consists of a network of 24 satellites placed into orbit by the Department of Defense of the United States. The GPS system was initially intended for military applications, but in the 80s, the government made it available for civilian use. GPS works 24 hours a day, anywhere in the world and in any weather.
How does GPS work?
The GPS satellites go around the earth twice a day in a very precise orbit and transmit signals while reporting to the planet. GPS receivers take this information and calculate the exact location of the user. In essence, this GPS receiver compares the time a signal was transmitted by a satellite with the time that has been received. The time difference tells the receiver how far is the satellite. By measuring certain distances from other satellites, the receiver can determine the user's position and display it on a unit's electronic map.
A GPS receiver must communicate with at least 3 satellites to calculate a position in two dimensions, which would be latitude and longitude, the movement. Starting from four satellites, the receiver can determine the 3D position that would, latitude, longitude and altitude. After establishing where the user, the GPS unit can calculate other information such as speed, tracks, distances, distance to destinations, schedules, etc..
As we have seen, no matter where we are, whether on roads or in the middle of a jam, who controls the environment are the satellites that are orbiting above us. This gives us an almost absolute reliability and availability 24 hours a day.
Móvil Renta has GPS as optional equipment for the rental of its vehicles.