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I would like to locate (position) people inside buildings without forcing them to download a native app. I'm focusing on iOS and Android devices. I therefore thought about wifi triangulation (trilateration), GPS repeater, GSM beamforming or even acoustic background spectrum.

Is there any product/tool to achieve this task?

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  • @mapperz: I don't think it's about general computing; i think it is about spatial computing. Is your issue that it is about indoor problems (rather than outdoor)? I agree that maybe it could be more detailed/descriptive in defining the situation/problem, but i do think it is on topic. – Martin F May 4 '14 at 22:07
  • @martinf thank you martin, btw I posted here instead of stack overflow because I thought it was not suitable for SO, I therefore reposted it here – Flavien Volken May 5 '14 at 6:44
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I don't know much about it beyond what's written in this press release and briefly described in this YouTube video, but GeoMetri is a commercial HTML5 solution to indoor location tracking and analytics.

From the application's help page:

About This Application

This web-application is a cross-platform responsive HTML viewer designed to help physical locations (i.e. brick & mortar retailers, warehousing, medical facilities, entertainment venues, etc.) create insight through physical analytics.

...

How does it work?

The core of the technology relies on WiFi. As physical consumers move around, the wifi enabled devices we all carry (i.e. smartphones, tablets, laptops, or even stand-alone wifi tags) send out probe requests every few seconds (or minutes) to see what networks (if any) are available. A digital marco-polo, if you will.

As part of the request, the wifi access points receive the signal strength between itself and the mobile device. This signal can be used to create an estimated location which users of this application can use to answer questions, such as:

  • How many vistors came to my location today?
  • Did my latest ad campaign make a difference?
  • How can I optimize my own staff to serve visitor traffic?
  • It seems to be the most realistic solution for now. Let's now check how accurate it is compared to iBeacon – Flavien Volken May 6 '14 at 6:57

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