> I'm designing a system to track pedestrians with a Qualcomm pdQ / GPS
> device. I need to write a Palm Application that retrieves the location
> from the GPS (via the serial port) and automatically sends it to a web
> server every five minutes by establishing a PPP connection. I'm a
> beginner in Palm Programming, so any kind of advice would be welcome:
> *do you think it's doable? *has anybody already developped a similar
> application? *would anybody be interested in helping / working for us?
> Thanks,
I've been designing something almost exactly like this, however
it's ideal interface is to talk to my Ministrel at the same time as my
Rand GPS.
Basically my idea (and anyone can steal it if they want) is to
periodically send the gps coords sampled from the Rand back through the
Ministrel to my server, who will then create a map of radius ($loc + 10km)
and then send that back down to the palm over the Ministrel. This way, my
server can accurately keep a running map of the user's travels. To my
knowledge, *NO* current mapping software does this yet, without having to
"preload" your intended trip onto the device (and I do *NOT* recommend
Rand's horrible solution for this. I've had to also return 4 of their GPS
units because of sudden failures in the past month).
I've gutted a Rand gps and am working on a charging circuit for it
(for their inept vehicle adapter, so I can trickle charge the batteries in
the GPS, as well as trickle charge the PalmV sitting in it) and will
eventually just tear the case off, and create my own Ministrel + GPS case
which houses both.
So if anyone has any ideas how to basically multiplex the serial
port for this type of use, I'm interested. 2 TX, 1 RX I think, yes?
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