[Ovmsdev] GPS location glitch (flatbed theft false alert)

[Michael Balzer]

Craig,

I agree, that one looks like a modem bug, and like one we can detect. 
The other case was different though, coordinates seemed legit.

Regards,
Michael


Am 29.03.21 um 02:02 schrieb Craig Leres:
> I had my first real one of these trigger last night:
>
>     1616938067 2021-03-28 13:27:47 53961 #158 C rx msg P AVehicle is 
> being transported while parked - possible theft/flatbed 
> (@0.000000;-?.??????)
>
> There are logs for a valid gps position ~6 minutes prior and 30 second 
> after this. But here's the log (1 second after the alert) that shows 
> the nmea sentence:
>
>     1616938068 2021-03-28 13:27:48 53968 #158 C rx msg L 
> 0.000000,?.??????,0,9,1,1,0.0,0,0,0,0,0,0,0,12,0,0.0,0.0
>
> That one is very interesting because the latitude is 0.0 but the 
> reported longitude is really the latitude! The log essentially tells 
> this story:
>
>     A,B
>     A,B
>     0,B
>     0,A
>     A,B
>     A,B
>
> Sort of looks like a simcom bug?
>
> (I don't want to post my location to the mailing list but I can send 
> the raw log to interested parties.)
>
>         Craig
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-- 
Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal
Fon 02333 / 833 5735 * Handy 0176 / 206 989 26


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