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Sometimes GPS devices send wrong signal for speed . i don't know the reason for this wrong signal . and how can i overcome for this issues ? because it making with my customers a big problems and sometimes many customers ends the contract due to lack of credibility in the data.
so are you know the reasons ? and how solve it ?
thanks
From Wialon side you can try to filter data with Messages validity filtration on the 'Advanced' tab of unit properties. For example, by option 'Max speed' or 'Maximum HDOP value' (depends on the data in messages). Please, see more https://docs.wialon.com/en/hosting/cms/ … filtration
Wondering from where "wrong" speed messages are comming...
Which HW do you use? Is speed calculated by Wialon or by the Device?
From Speed which was calculated by Device i never heard of serios wrong values!
Wolf
Maximum HDOP value'
the default value for Maximum HDOP value=2 . what about if i changed it to 4 . it will be good or no
Wondering from where "wrong" speed messages are comming...
Which HW do you use? Is speed calculated by Wialon or by the Device?From Speed which was calculated by Device i never heard of serios wrong values!
Wolf
yes. and we don't know the reason
what HW do you use?
what HW do you use?
teltonika and BCE
kmal пишет:Maximum HDOP value'
the default value for Maximum HDOP value=2 . what about if i changed it to 4 . it will be good or no
It's a rare value of hdop actually, if you get invalid huge values it's better to use 'Max speed' filtration. In other cases it may concern a device operation issues. From the side of Wialon I can also suggest you to try using 'GPS coordinates' as a movement detection in Trip Detection
