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Indoor Geolocation technology??

I am trying to do very accurate indoor geolocation, and building a product (tripchi) to help people engage with brands in airports in new and interesting ways. I was wondering what technologies people are using to do accurate indoor geo within 20 feet...or if there are significant limitations that I need to go about.

14 Replies

Vijay Goel, MD
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Vijay Goel, MD Entrepreneur • Advisor
Founder Chefalytics, Co-owner Bite Catering Couture, Independent consultant (ex-McKinsey)
I was at a client (large storage and retrieval company) and they embed regular intervals with RFID. This allows for cheap and fast ability to locate approximate locations and then get more specific to the pallet or shelf level via either manual labeling or technology -- this varied by the economics of the specific facility and materials stored. Sent from my iPad
Thinh Le
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Thinh Le Entrepreneur
Financial Analyst at Ventas, Inc.
Several indoor gps location apps have been done using wifi-assistance, image augmentation etc... One thing to look forward to however is using the Samsung Galaxy S4 which has a MEMS pressure sensor to differentiate different level of floors. If you want to be ahead in the market, I'd suggest working towards this solution since many buildings will often consist of two floors or more.

- Thinh
Michael Brill
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Michael Brill Entrepreneur
Technology startup exec focused on AI-driven products
Hi Chandra. I looked at indoor positioning last year and it's not quite as developed as one would hope - especially on iOS because of highly-restrictive Apple policies on wifi scanning. Most vendors seem to require professional services to implement (Meridian, Wifarer, etc.) and I'd be wary of creating dependence on relatively expensive technologies that will undoubtedly be built into Android and iOS within a year.

Apple just bought wifislam which had a good Android solution (~ 3 meter resolution) and were working on an iOS solution (~ 5 meter resolution) but I'm sure (a) Android version will get killed, (b) iOS version will get a lot better and (c) it'll find its way into iOS7 (maybe 90% sure on this one).

Clearly with the acquisition, Apple isn't going to relax their restrictions. There are other approaches but most of them require the site to adopt hardware (e.g., lighting systems) and that's a slog.

Soooooo, it really depends how time-critical this is to you and how much precision you really need. 20 feet is kind of between GPS and IPS... can you get by with GPS inside of airports which assumedly have good coverage? Do your own analysis, but my gut tells me that by the time you actually integrated an existing solution (at significant cost), you'll see it baked into the os/devices.

As an aside, I spent a ton of time thinking (and some implementing) location-based offer systems... I'd be happy to give you a brain dump.
Christian Fritz
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Christian Fritz Entrepreneur
Research Area Manager at PARC
http://www.senionlab.com/ is one solution. I know the founder/CEO.
Matt Moore
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Matt Moore Entrepreneur
Co-Founder & iCEO at CrowdMob Inc.
It's gonna be wifi of some sort. Look up Walkbase. Or contact me at [removed to protect privacy] as we are doing stuff in 18 airports already! Best, Matt -- Matthew Moore Co-Founder & CTO, CrowdMob Inc. Mobile: (650) 888-5962 Sent from my iPhone
Scott Durgin
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Scott Durgin Entrepreneur
Founder & CEO 440labs
Don Dodge is tracking some of this ... great guy, keen insights. Here is a post from him...



Ken Woodruff
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Ken Woodruff Entrepreneur • Advisor
Software Architect
Assuming that we're talking about locating a mobile phone the only other widely available tech besides WIFi is Bluetooth, particularly LE/4.0/Smart. If you had a sufficiently large set of Bluetooth beacons with well known locations you should be able to triangulate pretty effectively based on relative signal strengths received at the phone.
Charlie Younghusband
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Charlie Younghusband Entrepreneur
CEO at Field.Direct
reelyActive, fresh out of the FounderFuel accelerator, is a startup focused in this space. Contact them athttp://www.reelyactive.com/
John Rodley
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John Rodley Entrepreneur
CTO & co-founder at Twiage
Look at these guyshttp://www.ekahau.com/. We used them all the way back in 2005 and it was good enough to trigger a museum AV presentation on a windows mobile phone when the user approached a particular exhibit.
Sean Patrick Murphy
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Sean Patrick Murphy Entrepreneur • Advisor
Consulting Data Scientist
To my limited knowledge, you can map out the locations of indoor wifi networks and use signal strength of each to get a relatively accurat(ish) measurement.
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