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  1. #1
    Junior Member learning's Avatar
    Join Date
    Jan 2006

    Default GPS Tracking Indoors

    I want to track and get info on some physical objects placed inside a building and get their Geographic location i.e Lattitude/Longitude
    I know iPhone provides coordinates but I am not sure how accurate their are, especially since its inside the building.

    I'm guessing any GPS device will struggle giving info due to no open space.
    How good is GLONASS enabled devices vs GPS for this purpose? Any better and any specific devices that can give fairly accurate details for this purpose

  2. #2
    Soaring like an Eagle gary67's Avatar
    Join Date
    Aug 2007
    In a field in Hanmer

    Default Re: GPS Tracking Indoors

    Standard GPS is still only to within a few M's as the US military still won't let us go to mm accuracy like they have.

  3. #3
    Senior Member
    Join Date
    Sep 2007
    Lower Hutt, NZ

    Default Re: GPS Tracking Indoors

    I thought the only way of doing location identification inside is by use to beacons - which are bluetooth based and multiples of them to triangulate the location.
    Interests: PVRs, HTPCs, Apple IOS, Apple TV, Media Players, C#, Printing

  4. #4
    Moderator Jen's Avatar
    Join Date
    Dec 2004

    Default Re: GPS Tracking Indoors

    What about RFID? You would need to place reference points in the building in order to identify locations.

  5. #5
    Junior Member
    Join Date
    Dec 2017

    Default Re: GPS Tracking Indoors

    When the GPS tracking device loses sight of the sky due to the blocking effect of the building structure, it will continue to report its location periodically as it was just before it entered the building.

    Not only would the tracking device be reporting stale, out-of-date location data, there may be a long acquisition delay (possibly several minutes) upon exit as the GPS receiver regains a positional fix.

    I have heard infsoft work for that.

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