The Global Positioning Sysytem(GPS)is a Navigation System using satelites,a receiver and algorithms to synchronise location.velocity and Time Data For Air sea and land travel.The Satelite System consist of constellation of 24 satalite in six Earth Centered orbital planes.in any weather, anywhere. Ground stations, located worldwide, continuously monitor them. The satellites transmit signals that can be detected by anyone with a GPS receiver
The Main Functionality Of a GPS-based tracking system comes from the use of the Global Navigation Satellite system(GNSS)network.This network of satellite emits microwave signals which are sent through to a variety of GPS device.These devices can be found in vehicles or smartphones themselves for example.The Information that is broadcast from the vehicle are things like location,vehicle speed,direction,etc.The Tracking device is installed into a vehicle.It uses Global Positioning System to know the vehicle or equipment's location at all times.The information that is gathered from the vehicle is then stored on the device inside.The Data is then transmitted by using a wireless,or cellular network through providers like AT&T and Verizon.It traves Over one of these cellular networks back to a server.
AIS 140 is a standard created by ARAI Automobile Research Association of India which specifies details about the GPS device and panic button that needs to be used in vehicle tracking systems. it must follow certain parameters as per Government AIS 140 notification.