Question on real time tracking

[dkm-3]

Hi,

I'm trying to use gpsbabel and its live tracking feature to output a gps
track with additional data. These data are measured using accelerometers
(wiimotes). Basically, whenever gpsbabel gets a new point and outputs
it, I read the sensors' value and add theses value in the output.  The
problem I have is that when the GPS looses signal, gpsbabel exits. I
wish I could do a small workaround by running gpsbabel in an endless
loop, but the wiimotes need to be paired (bluetooth), which is not
possible as everything is in a backpack and not accessible during the
experiments.

I looked a bit in the code of gpsbabel and couldn't figure if there was
already a mechanism that could help me. The best solution would be to
wait for the GPSr to be ready again. Is there something like this ? If
not, I'll try to do something on my own...

Thanks,
Marc

PS: FYI, I developed a bridge between gpsbabel and python so that output
modules can be written directly in python. Everything can be found here:
 http://github.com/dkm/gpsbabel-python-filter
and
 http://github.com/dkm/gpsbabel-python-filters

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[Robert Lipe-4]

On Tue, Oct 13, 2009 at 6:14 AM, Marc <dkm@...> wrote:

it, I read the sensors' value and add theses value in the output.  The
problem I have is that when the GPS looses signal, gpsbabel exits. I

It's not supposed to.  In fact, that was one of the test criteria for that mode.   Now different GPSes have been added since my original work and they may have different failure states, but in the absence of debug traces, a GPS model, connection media, operating system in use, or so on the search area for guessing is large.

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[dkm-3]

Robert Lipe <robertlipe@...> writes:

> On Tue, Oct 13, 2009 at 6:14 AM, Marc <dkm@...> wrote:
>
>     it, I read the sensors' value and add theses value in the output.  The
>     problem I have is that when the GPS looses signal, gpsbabel exits. I
>
>
> It's not supposed to.  In fact, that was one of the test criteria for that
> mode.   Now different GPSes have been added since my original work and they may
> have different failure states, but in the absence of debug traces, a GPS model,
> connection media, operating system in use, or so on the search area for
> guessing is large.

Thanks for your answer. I can already provide more info, but I'll
investigate exactly what happens by looking more deeply into the code
(which I already did some time ago...).

I'm using a Garmin Vista Cx through the USB on an Ubuntu 9.04 :)

But as I said, I'll gather more info to narrow down my problem.

Thanks,
Marc

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