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A solution regarding sensors

(edited by hhamedk 07/04/2019 13:34:51)

Topic: A solution regarding sensors

Hi there

We have a FLS sensor on a unit but this sensor is a resistance FLS and when vehicle is moving sends inaccurate data. Our customer only need fuel data when vehicle is stop so we are going to go with bellow scenario:

1. Create a movement detection sensor (custom digital sensor) based on speed parameter and set it to be 0 when vehicle is moving and 1 when vehicle is stopped.
2. Create a FLS sensor based on parameter receiving from resistance FLS installed on vehicle.
3. Set movement detection sensor as validator of FLS sensor in a way when vehicle is moving we receive unknown value from FLS and when it stops we receive value of FLS.

Our problem now is that customer want to receive FLS value when vehicle is stopped and receive last known value of FLS (last value before start moving) when vehicle is moving.
Please share your ideas how we can to it. You may offer us totally different way to reach this result.
I think there should be a trick to store last known value of FLS some where and replace it when FLS value got unknown.


As more detailed explanation:
consider FLS shows 200lt when unit is in stationary state. Then units start moving and we should see 200lt all the time that unit is moving. Then it after stops again we should see a value like 150lt.

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A solution regarding sensors

Re: A solution regarding sensors

Hi,

It can be done only if device sends no FLS parameter during the movement. In such a case just deactivate option "Last message only" in sensor's settings.

@ Oleg Zharkovsky
Technical Support / Training Team
"Timely is the best. But still better late than never."
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A solution regarding sensors

(edited by hhamedk 08/04/2019 12:31:26)

Re: A solution regarding sensors

Unfortunately device is TT5300 and as I know this device doesn't have such functionality.

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A solution regarding sensors

Re: A solution regarding sensors

zark, there is no possibility in Wialon?
If No, it's really good to add it in system to show last known value of sensor while it's value is unknown. Another usage of such function is for Weight Sensors which have many inaccurate data in unit movement moments and we can tell system to show last known weight while unit is moving (by put a movement sensor as validator of weight sensor).

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A solution regarding sensors

Re: A solution regarding sensors

hhamedk wrote:

zark, there is no possibility in Wialon?

Yes, there is no such function in Wialon currently.

hhamedk wrote:

If No, it's really good to add it in system

You should direct such request for a new function to the special forum branch: https://forum.gurtam.com/viewforum.php?id=87

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