Rough Fuel Chart

Fuel theft can occur whilst the vehicle is in motion and we are seeing more instances of this. It is designed to steal small amounts of fuel over an extended period but try to keep it outside of an alerting range. Trying to capture the data in Wialon for a moving vehicle may not be practical as the frequency of capture may be too low. An alternative is to use a micro controller, Arduino or something similar, to capture the data real time from the sensor and then create a smoothing algorithm that will create an entry say every minute and send this to the analogue port of your tracker. We did this for connecting multiple load sensors to a device that only had one analogue port. You could then use Wialon to track fuel usage per distance unit, eg 1 klm, 5 klm etc and alert if the usage is outside of set limits using say a virtual sensor or combination of sensors.