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System for mapping building interior with PDR and ranging and related methods

  • US 10,616,723 B1
  • Filed: 07/16/2019
  • Issued: 04/07/2020
  • Est. Priority Date: 07/16/2019
  • Status: Active Grant
First Claim
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1. A system for mapping an interior of a building, the system comprising:

  • at least one mobile device comprisinga pedestrian dead reckoning (PDR) circuit configured to generate a plurality of PDR positions as a user moves within the interior of the building, anda ranging circuit configured to generate ranging mapping data of the interior of the building as the user moves within the interior of the building; and

    a server configured tomap the interior of the building and generate a location of said at least one mobile device within the interior of the building based upon the plurality of PDR positions and the ranging mapping data from said at least one mobile device, andcorrect an accumulated PDR error in the plurality of PDR positions based upon the ranging mapping data.

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