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Re: Geolocation possibilities on the iPhone

Thyago Lisboa Mota — Wed, 26 Jun 2013 11:26:14 -0000

Have you tried to use http://www.opencellid.org open source database?

Re: Geolocation possibilities on the iPhone

free fta satellite keys — Tue, 09 Dec 2008 10:12:15 -0000

Has read with the pleasure, very interesting post, write still, good luck to you!

Re: Geolocation possibilities on the iPhone

Tom — Mon, 14 Jul 2008 06:15:57 -0000

Nope, I've been busy with other things. Since iPhone 2.0 has GPS now there's not much reason to continue pursuing this stuff.

Though it would be nice to be able to use Bluetooth mice and keyboards with the iPhone.

Re: Geolocation possibilities on the iPhone

smokeonit — Mon, 14 Jul 2008 06:11:51 -0000

any progess on the bluetooth stack for the iphone???

i would love to be able to use my tomtom bluetooth GPS mouse with iphone osX 2.0, to be able to do live tracking in areas without WPS-coverage ("wifi postioning system") skyhookwireless does the WPS for google/apple

Re: Geolocation possibilities on the iPhone

actor79 — Wed, 30 Apr 2008 12:17:57 -0000

Is there any literature out there that describes exactly how the iPhone does the positioning?

Re: Geolocation possibilities on the iPhone

shelby — Sat, 10 Nov 2007 01:49:53 -0000

Navizon.com is already doing this. Of course you have to jailbreak your iPhone to get it installed, but it works pretty well.

Re: Geolocation possibilities on the iPhone

Tom — Wed, 07 Nov 2007 21:33:02 -0000

It's an interesting idea, but...

What you're talking about is essentially dead-reckoning using an inertial navigation system, like those used in spacecraft and submarines... These systems require all sorts of crazy gyroscopes and accelerometers, and the iPhone's simple 3-axis accelerometer is no where near suitable for that kind of thing. Just check out the Wikipedia page to get an idea of how complex they can be: http://en.wikipedia.org/wik...guidancesystem

I tried to do a basic inertial nav system for the iPhone accelerometer mouse I was working on, and it's just not accurate enough and too difficult to do without gyros (at least as far as I could tell from the few hours I spent experimenting).

The much simpler version is a basic pedometer, which someone has already implemented for the iPhone (although I haven't tried it)

Re: Geolocation possibilities on the iPhone

rruski — Wed, 07 Nov 2007 16:07:06 -0000

what about using the accelerometer as a step counter? it could detect the number of steps and turns. or in a car, it might even might be easier. that would work as long as the iphone isnt being moved. so link it together with the techniques above!
greetz!