WHAT IS AVL
AVL(Automatic Vehicle Location). It is a system that is used to establish a vehicle position with latitude and longitude coordinates. For this it uses the GPS technology (Global positioning system);generally this coordinates are transmitted to base in real time or in post process, a calculation equipment with a communication interface and a software, allows to draw over a digital map the vehicle position.
The Software can give reports in regards the vehicle position and speed in a time range.
When the real time vehicle position is needed to know it is needed a transmission medium which it can be a radio,cellphone , or another wireless transmission medium.