×

Vehicle identification

  • US 9,311,816 B2
  • Filed: 09/27/2012
  • Issued: 04/12/2016
  • Est. Priority Date: 09/27/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method of vehicle identification, comprising:

  • sensing a change in at least two components of a magnetic field at a first location due to movement of a vehicle and producing an event record that includes a vehicle magnetic signature corresponding to the change;

    comparing the vehicle magnetic signature to a database of saved records that include stored magnetic signatures;

    associating the event record with a saved record in the database when a match is obtained between the vehicle magnetic signature and the stored magnetic signature of the saved record; and

    performing an action when the match is obtained between the vehicle magnetic signature and the stored magnetic signature;

    wherein the first location is at a road and the stored magnetic signatures are generated by sensing a change in a magnetic field in at least two components at a second location due to movement of vehicles along the road at the second location, the second location being a location past which vehicles travel before reaching the first location.

View all claims
  • 6 Assignments
Timeline View
Assignment View
    ×
    ×