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System and method of tracking vehicles within a parking lot using RFID tags

  • US 9,454,745 B2
  • Filed: 10/03/2013
  • Issued: 09/27/2016
  • Est. Priority Date: 12/17/2008
  • Status: Expired due to Fees
First Claim
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1. A method of tracking vehicles within a parking lot using RFID tags, the method comprising:

  • creating a record of a vehicle, wherein the record is stored on a computer and includes information associated with the vehicle;

    creating a electronic map of the parking lot relative to a global positioning system (GPS) to store on the computer, the electronic map representing a plurality of slots with each slot representing a parking spot to park a respective vehicle in the parking lot;

    assigning a RFID tag to the record associated with the vehicle using the computer;

    detecting the RFID tag attached to the vehicle stored in a parking lot within a pre-determined range using a mobile first interrogator when the vehicle is stationary;

    determining a new GPS location of the mobile first interrogator within the parking lot upon detecting the RFID tag by the first interrogator;

    associating the new GPS location with a particular slot of the parking lot using the electronic map;

    and assigning the particular slot to the vehicle in response to RFID tag is no longer detected by the first interrogator to indicate a current parking spot of the vehicle within the parking lot.

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