Patent ID: 8860611
Filing Date: 2014-10-14
Classification: G01S

Abstract:
1. A radio frequency identification (RFID) localization system, comprising: a plurality of RFID tags positioned at known locations in a local frame of reference, each of said RFID tags having a unique identification associated therewith, each of said RFID tags generating an RF signal indicative of said unique identification associated therewith; at least two RF antennas adapted to be mounted on a mobile vehicle, each of said RF antennas at a unique known position and orientation relative to a reference point on the mobile vehicle, each of said RF antennas having a range-bounded field-of-view associated therewith, each of said RF antennas detecting each said RF signal generated by any of said RFID tags within said range-bounded field-of-view associated therewith; and a processor coupled to said RF antennas, said processor storing information to include (i) each of said known locations of said RFID tags along with said unique identification associated therewith, (ii) each said known position and orientation of said RF antennas, and (iii) each said range-bounded field-of-view associated with each of said RF antennas, said processor implementing an evolutionary optimization scheme using said information based on each said RF signal so-detected to determine a position and orientation of the mobile vehicle in the local frame of reference.