Systems GPS-monitoring of transport has already been written a lot. Recall that there are four varieties: – autonomous systems operating in real time (online) – autonomous systems operating in offline mode – system with the subscription fee (the software and maps are on the client) – a system with the subscription fee (the software and card are the operator, the so-called WEB-based interface). It is also possible combination options building monitoring systems. All these systems allow the addition of motion control parameters and various sensors, including sensors of fuel. Since the theme of economy at present is very serious (and not only in connection with crisis), focus on controlling the fuel in some detail. Fuel in the GPS-monitoring can be controlled by several methods, which vary in accuracy, cost and the fact that the client receives in the long run. Calculated method.

This is the easiest and cheapest method, not requiring any intervention from the fuel system, but at the same time and the most inaccurate. Enough to enter into a computer program standard for a specific fuel consumption vehicle equipped with GPS-controller. The program multiplies the standard rate for mileage according to the satellite system and the result is the fuel consumption over time. Despite the primitive method it is still substantially exactly the same calculation performed on the basis of data from the odometer mileage that are easy to forge. Also note that the data on fuel consumption will be considered not in themselves, but in together with the real mileage car, displayed on the map.

That is, the manager will see that all flights are made according to task, at a designated route followed by a car, whether there had been "left" flights. It should be noted that calculation method does not allow to see the place and time of filling stations or sinks. Fuel level sensor.