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CROWD-SOURCING INDOOR LOCATIONS

  • US 20150204676A1
  • Filed: 08/15/2012
  • Published: 07/23/2015
  • Est. Priority Date: 08/15/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • identifying a map of an indoor space, the map being based on a plurality of constraints;

    receiving inertial navigation signals from a first set of mobile devices moving through the indoor space, where the inertial navigation signals represent a direction and speed of movement of the mobile devices;

    calculating, using a processor, a number of user trajectories based on the received set of inertial navigation signals;

    identifying paths associated with the number of user trajectories, wherein each path comprises a number of turns traveled between a first position and a second position on the map;

    determining a score for each of the identified paths based on a similarity of a given path to the number of user trajectories;

    selecting at least one path from the identified paths that scores above a pre-determined threshold; and

    generating, using the processor, map information based on at least one selected path that identifies walkable areas of the indoor space.

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