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System for locating users

  • US 10,477,355 B1
  • Filed: 12/13/2017
  • Issued: 11/12/2019
  • Est. Priority Date: 12/13/2017
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a plurality of floor devices, each of the plurality of floor devices comprising;

    a flooring material;

    a support structure configured to support the flooring material;

    a first communication interface;

    a transmitter coupled to an antenna, wherein the antenna is underneath the flooring material at a first location;

    a receiver coupled to the antenna;

    a first memory, storing first computer-executable instructions; and

    a first hardware processor to execute the first computer-executable instructions to;

    use the transmitter to transmit a transmitted signal that is radiated by the antenna, wherein the transmitted signal is indicative of the first location;

    use the receiver to receive one or more received signals with the antenna;

    generate first sensor data indicative of a characteristic of the one or more received signals at a first time;

    send the first sensor data using the first communication interface;

    generate second sensor data indicative of a characteristic of the one or more received signals at a second time; and

    send the second sensor data using the first communication interface; and

    a server comprising;

    a second communication interface;

    a second memory, storing second computer-executable instructions; and

    a second hardware processor to execute the second computer-executable instructions to;

    receive the first sensor data and the second sensor data from the plurality of floor devices;

    determine, from the first sensor data, a first object representation that is representative of a first object that is proximate to the flooring material, wherein the first object representation comprises sensor data having values that exceed a threshold value;

    determine, from the second sensor data, a second object representation that is representative of a second object that is proximate to the flooring material, wherein the second object representation comprises sensor data having values that exceed the threshold value;

    determine a first user identifier associated with the first object representation;

    determine that at least a portion of a first perimeter of the first object representation overlaps a portion of a second perimeter of the second object representation; and

    associate the first user identifier with the second object representation.

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