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Indoor Map Data as a Recalibration Source for Low-Cost MEMS Inertial Navigation

  • US 20140149069A1
  • Filed: 02/04/2013
  • Published: 05/29/2014
  • Est. Priority Date: 02/02/2012
  • Status: Active Grant
First Claim
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1. A computer-implemented method for determining an estimated user location performed on a computer system programmed to perform the method, comprising:

  • determining in a plurality of physical sensors in the computer system, a plurality of physical perturbations in response to a change in physical orientation of the computer system by a user;

    determining in a processor in the computer system, a physical context of the computer system, in response to the plurality of physical perturbations;

    determining in the processor in the computer system, whether the physical context is substantially similar to one of a plurality of map-based contexts associated with a map, wherein each map-based context is associated with a location on the map; and

    when a map-based context is substantially similar to the physical context, the method comprises;

    determining in the processor a location on the map associated with the map-based context;

    determining in the processor a graphical user interface in response to the location on the map; and

    displaying on a display of the computer system, the graphical user interface to the user.

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