|Oct 23, 2012, 04:37 AM||#1|
How does my iPod know where I am??
Using iPod Touch 5g.
So I'm at work, and I snapped a few pics at my desk the other day. Yesterday at home (a few miles from work) I accidentally clicked the 'Places' tab on Photos and lo and behold, it had a pin on the map where my workplace is.
Further to that, as I was walking to work this morning I had the 'Maps' app open and I had the arrow 'location' button clicked, and to my surprise the 'blue blob' was following pretty much exactly where I was - although sometimes it was a few metres out.
I'm guessing it has something to do with Wi-Fi, but I wasn't connected to any Wi-Fi networks at the time, and all the networks around were protected. Any ideas on how it works?
Try it out and let me know if it works for you also.
Last edited by Jsameds; Oct 23, 2012 at 04:43 AM.
|Oct 23, 2012, 05:00 AM||#2|
It doesn't need to be connected. It just needs to know what WiFi access points are around it.
(FYI, for discovery to work, wireless access points send out 'beacon' packets. These, plus a database of wifi+location gets you where you are)
It's usually really rough though, the wifi location accuracy.
Official MR IRC
Look at me, I own a bunch of things and everyone must know about every single one.
|Oct 23, 2012, 05:17 AM||#3|
Done a bit more research into it and it looks like they use something called Skyhook
pretty cool stuff, although would be much better if it was tied in with GPS (Take the hint, Apple!)
|Nov 29, 2012, 05:50 AM||#4|
Yeh, I discovered this quite by accident a couple of years back on my 3rd gen iPod Touch running iOS 4.x
I was walking through Sydney trying to find a free wifi hotspot and noticed the Maps application was pin pointing exactly where I was. I was a bit amazed by this because I also had the understanding that you had to be connected to a WiFi router/internet in order for Maps to function.
As already mentioned, the accuracy is a little rough, depending on where you are of course. It works well when walking but not sure how well it would work when driving. I know the iPod Touch detects wifi networks fairly quickly so it may do okay in the car. I'm sure the 5th gen iPT would perform much faster and better.
Thanks for posting this thread as it's got me thinking about trying out my iPT as a Navigator.
|Nov 29, 2012, 10:09 AM||#5|
"All Apple devices utilized Skyhook's WPS until the iPhone/iPad software 3.2 release in April 2010, which utilized Apple's own location technologies."
MBA i5 13/4/128, iPad 1, iPad 3, iPod Touch 5g
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