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Locating an object based on charging/response time

  • US 10,032,051 B2
  • Filed: 10/12/2016
  • Issued: 07/24/2018
  • Est. Priority Date: 01/02/2016
  • Status: Active Grant
First Claim
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1. A method implemented by an information handling system that includes a memory and a processor, the method comprising:

  • calibrating an RFID reader in a vehicle in response to detecting a malicious RFID reader within the vehicle, wherein the calibrating comprises adjusting a power level of the RFID reader;

    in response to calibrating the RFID reader, sending a request signal from the RFID reader to an RFID tag, wherein the RFID reader begins transmitting the request signal at a first point in time;

    receiving, at the RFID reader, a response signal from the RFID tag at a second point in time;

    determining a tag charging time of the RFID tag based upon the first point in time and the second point in time;

    computing, by the RFID reader, a distance from the RFID reader to the RFID tag based on the tag charging time of the RFID tag;

    identifying a location of the object based upon the computed distance; and

    generating a notification that includes the location of the object.

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