1

False theft alerts

Topic: False theft alerts

Hello everyone.

I would like to ask everyone who has shared with me their experiences using wialon fuel control to reduce false fuel theft alerts. I am receiving the information via canbus and apparently I am not configuring correctly because I am having several fuel theft alerts. I will attach as this the configuration. Thank you and let's discuss

Truck Scania R Series with  tanks:

1º tank of 440 L
2º tank of 330 L

The only configuration I made was in the fuel tab of the unit, if you have any configuration to suggest please do not be shy.

2

False theft alerts

Re: False theft alerts

Hello.

thiago wrote:

I would like to ask everyone who has shared with me their experiences using wialon fuel control to reduce false fuel theft alerts. I am receiving the information via canbus and apparently I am not configuring correctly because I am having several fuel theft alerts.

Unit "QIO7251" is set to time-based fuel algorithm. In such a case system compare real values from FLS with expected values from math model. Explanation in details can be found in previous year training record.

Your issue is connected with a fact, that unit "QIO7251" has no math model, that's why expected consumption is 0, as a result you see false fuel thefts. To create a math model you should fill fields in "Math consumption wizard".

Also I recommend to add a lower bound into the calculation table of fuel level sensor "Volume de combustível". Sometimes it sends value "0" affecting report output. Just enter value "0.1" as a lower bound to filter zero values.

@ Oleg Zharkovsky
Technical Consulting / Training Team
"Timely is the best. But still better late than never."
3

False theft alerts

Re: False theft alerts

thank you zark for your explanation.

Could you tell me more about the behavior of fuel control in cases where the vehicle has 2 separate tanks and via CAN data is extracted? It can sometimes take time for the liquid to pass from one tank to another as the system can help us understand this in practice. Suppose we fill a tank with only 200 liters until the liquid divides in both tanks, have you had this experience?

and of course they are linked together.

4

False theft alerts

Re: False theft alerts

It is possible to work with 2 linked tanks in Wialon. The result depends on the number of fuel level sensors in this case.

If there is only one FLS in one of the tanks, then the settings are the same as for 1 tank, but the accuracy possibly won't satisfy you.

If there are FLS in each of the tanks, then the accuracy will be better, but the settings will differ:
1) Create custom sensor with name "Fuel level 1" based on the parameter from the first FLS parameter. Add a calibration table.
2) Create custom sensor with name "Fuel level 2" based on the parameter from the second FLS parameter. Add a calibration table.
3) Create fuel level sensor "Fuel 1+2" with no calibration table and based on the following expression: [Fuel level 1]+[Fuel level 2]

@ Oleg Zharkovsky
Technical Consulting / Training Team
"Timely is the best. But still better late than never."