GPS (GLOBAL POSITIONING SYSTEM)

GPS (GLOBAL POSITIONING SYSTEM)

SINCE AGES MAN HAS INVENTED VARIOUS INSTRUMENTS TO ASSIST IN NAVIGATION ON EARTH. THE MAGNETIC COMPASS IS ONE OF THE OLDEST NAVIGATIONAL INSTRUMENTS MAN HAS BEEN USING FOR MANY CENTURIES FOR DIRECTION IDENTIFICATION ON EARTH'S SURFACE. GLOBAL POSITIONING SYSTEM. (GPS) BASED DEVICES ARE THE LATEST NAVIGATION ASSISTANCE DEVICES USED THESE DAYS. GPS DEVICES PROVIDE ACCURATE REAL-TIME LOCATION AND MUCH MORE INFORMATION TO ITS USER FOR EASIER AND COMFORTABLE NAVIGATION EVEN THROUGH HIS OR HER LOCAL STREETS. A COMMONLY AVAILABLE GPS DEVICE. WHEN FITTED IN A CAR, IT SHOWS THE SPEED OF THE CAR, TIME, LONGITUDE COORDINATES, AND MAP OF NEARBY AREA.

WHAT IS GPS?

A GLOBAL POSITIONING SYSTEM (GPS)  IS A METHOD OF IDENTIFYING THE LOCATION OR POSITION OF ANY POINT (OR A PERSON) ON EARTH USING A SYSTEM OF 24 SATELLITES, WHICH ARE CONTINUOUSLY ORBITING, OBSERVING MONITORING, AND MAPPING THE EARTH SURFACE. EVERY SUCH SATELLITE REVOLVES AROUND EARTH TWICE A DAY AT A DISTANCE OF ABOUT 20000KM FROM IT. THE ORBITS OF THESE SATELLITES ARE SO ALIGNED THAT AT LEAST FOUR OF THEM ALWAYS KEEP LOOKING AT ANY GIVEN POINT ON EARTH SURFACE. THIS IS THE MINIMUM NECESSARY REQUIREMENT FOR CORRECT AND ACCURATE LOCATION IDENTIFICATION THROUGH THIS SYSTEM.

APPLICATION OF GPS?

GPS [GLOBAL POSITIONING SYSTEM]

GPS HAS MANY DAY-TO-DAY APPLICATIONS:-

1. IT HELPS IN NAVIGATION ON WATER, AIR, AND LAND

2. IT ASSISTS IN AIRPLANE TRAFFIC MOVEMENT

3. IT ASSISTS IN TRACKING ANIMALS AND BIRDS AND STUDYING THEIR MOVEMENTS BY ATTACHING GPS DEVICES TO THEIR BODY

4. ONE CAN LOCATE CHANGES IN THE POSITION OF GLACIERS, MOUNTAIN HEIGHTS

5. IT HELPS AUTOMATIC VEHICLE MOVEMENTS

6. ONE CAN MEASURE THE SPEED OF MOVING OBJECTS USING THIS TECHNOLOGY

NOWADAYS, VARIOUS DEVICES LIKE MOBILE PHONES, I-PAD ETC. COME IS EQUIPPED WITH PRE-LOADED GEOGRAPHICAL MAPS AND GPS SOFTWARE THAT IDENTIFIES THE LOCATION OF THESE DEVICES USING A GPS SYSTEM. GPS IS A FREE SERVICE AVAILABLE TO ANYONE IN THE WORLD WITH A GPS DEVICE.