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Found 1 result

  1. Hey guy's so recently I was working on an APP that used GPS to locate the positions Latitude & Longitude of a device. Now that all fine and dandy when you're outdoors but as soon as you go indoors its a whole different ball game, because the device does not have clear line of sight to the satellites it cannot accurately (within a reasonable margin of error 1-2 meters) get the correct position of the device. So GPS was out the windows and I started looking at other solutions and figured where better to ask these questions than hak5. So far what i have learned is that in doors the position of a device can be accurately calculated using WiFi. Now I know to some of you boffins out there this will be nothing knew but this is new mind blowing territory for me and I am having a hard time wrapping my head around just how it works and was wondering if you guys could shed some noob friendly light on the whole subject of WiFi positioning and how it works. From what I have read and understood so far you take a number of WiFi routers position them throughout a building and by doing this you can accurately locate the position of the device in the building based on WiFi signal strength of the routers? < thats the bit i don't get / am getting mixed of with. Basically I need a cheap solution for wifi positioning. There are guys out there that all ready have bespoke products avalable but i am sure they are crazy expensive like these guys over at Navizon http://www.youtube.com/watch?v=Sw7gc8ic5vM Also I found this video intresting, istead of wifi these guys mention using bluetooth as a means of positioning instead of wifi http://www.youtube.com/watch?v=n0UbrkJpypc I hope we can all discuss this subject further as I really need to implement a solution like this and i just find it pretty dam interesting in general. Also as a side note I think i may have accidently have stumbled accross why google street view cars collected all that wifi info they were not suppose to be collecting. WIFI POSITIONING!!! http://en.wikipedia.org/wiki/Wi-Fi_positioning_system just a hunch but you never know! and if that wasn't enough take a listen to this guy and play close attention when he talks about drivers! http://www.youtube.com/watch?v=Skifba2SMpE
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