Logfile: Which GPS is active?

ArduCopter
,
1

Hi all,

I’m using two GPS receivers on my copter, which maybe most are doing. Therefore, I have GPS and GPS2 in my logfile which is fine. I set the Auto Switching mode to UseBest which is plausible and seems to work fine. However, is there any parameter which tells me at which time of flight which GPS receiver is actually used? I just want some confirmation that the copter is doing what I think it is doing.
Any idea?

Thanks,
Fabian

1 Like
2

I¢m using two GPS receivers on my copter, which maybe most are doing. Therefore, I have GPS and GPS2 in my logfile which is fine. I set the Auto Switching
mode to UseBest which is plausible and seems to work fine. However, is there any parameter which tells me at which time of flight which GPS receiver is
actually used? I just want some confirmation that the copter is doing what I think it is doing.
Any idea?

GPS.used / GPS2.used etc.

Fabian

Yours,

1 Like
3

Thanks, Peter.
Is this what is called GPS.U in the logfile?

mp

4

Is this what is called GPS.U in the logfile?

Well, the description at
https://ardupilot.org/plane/docs/logmessages.html#gps-information-received-from-gnss-systems-attached-to-the-autopilot

says that that’s true of the GPS is “in use”.

That concept might get a bit tricky with blending… and sensor
affinity…

mp

Peter

5

Great, then it’s clear. Thanks also for the link. I’m at copter and did not look into the plane documentation.
-Fabian

6

Great, then it¢s clear. Thanks also for the link. I¢m at copter and did not look into the plane documentation.

https://ardupilot.org/copter/docs/logmessages.html#gps-information-received-from-gnss-systems-attached-to-the-autopilot

:slight_smile:

-Fabian

Peter

1 Like
7

Thanks. I mainly had a look at the Dataflash Logs page. Now I’m happy to know what the copter is doing :slight_smile:
-Fabian