Closed GoogleCodeExporter closed 9 years ago
I am sorry for multiple issues. There was a problem with the bugtracker.
Original comment by fukanchik
on 15 Nov 2010 at 9:01
In the settings there is the sanity option, this will filter out speed and
altitude spikes. These spikes are abnormal values which in a plane are actually
realistic. It would improve tracking if you disable this option.
The GPS signal will most likely not penetrate a normal airplane hull or be
available at all when the phone is in "flight mode". How was the available
signal during flight?
Original comment by rcgr...@gmail.com
on 16 Nov 2010 at 12:21
Hi,
The signal was available in both trips to and back unil some moment when we
have reached particular altitude and speed i think.
Signal was available inside the hull and the phone was in flight mode. I have
attached .kmz file for you to look at. Could you please confirm the option you
siggested will work for future flights or we need additional release?
Original comment by fukanchik
on 16 Nov 2010 at 12:36
Attachments:
> this will filter out speed and altitude spikes
Usually, plane monitonically increases/decreases speed and altitude. I don't
think it's a spike.
Original comment by fukanchik
on 16 Nov 2010 at 12:38
It could be a feature rather than a bug.
I think most normal consumer GPS-devices can't handle high speeds (500km/h and
above).
For example the 'Sony gps-cs1', in the manual it says that tracking over 500
km/h isn't possible (http://pdf.crse.com/manuals/2688548321.pdf page 11 -
sorry, I couldn't find an english manual)
Original comment by ahmed.ka...@gmail.com
on 3 Jun 2011 at 12:42
As others have mentioned, unchecking the sanity check will allow OpenGPSTracker
to record high speeds, which are in most circumstances "bad data" that you want
to be filtered out, but in the case of airplanes are not.
Getting a GPS signal within an airplane is also difficult - the phone needs to
be able to reach several GPS satellites, and can't do so through the metal body
of the plane very well - I've found that you have to keep the phone very close
to the window for it to pick up sufficient satellites.
I think this issue can be closed, it can be resolved by using the existing
sanity check option. I can confirm that with that unchecked and my phone near
the window, I was able to record a GPS track from a plane just fine.
Original comment by cincoden...@gmail.com
on 26 Jun 2014 at 3:16
Planes out of scope for this project
Original issue reported on code.google.com by
fukanchik
on 15 Nov 2010 at 8:30