Multiple rfid anti-collision interrogation method

Details Multiple rfid anti-collision interrogation method Multiple rfid anti-collision interrogation method

G - Physics

06

K

G06K 7/00 (2006.01) G01V 15/00 (2006.01) G08C 17/02 (2006.01) H03M 1/00 (2006.01) H04B 5/00 (2006.01) H04L 9/30 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2490510

A method and system to selectively identify one RFID tag response from a plurality of RFID tag responses. An interrogation signal is transmitted. If more than one RFID tag response is detected a signal is transmitted that can disable all responding tags, or all responding tags except the tag or tags of interest. The tag of interest, if not already enabled, is enabled and interrogated.

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