Method and system for proximity tracking-based adaptive power control of radio frequency identification (RFID) interrogators
First Claim
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1. A radio frequency identification (RFID) system, comprising:
- at least one RFID reader to read at least one RFID tag;
a sensor for determining a proximity parameter for said at least one tag with respect to said at least one reader; and
a controller that controls the RF power of said at least one reader.
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Abstract
A radio frequency identification (RFID) system (and method), includes at least one RFID reader to read at least one RFID tag, a sensor for determining a proximity parameter for the at least one tag with respect to the at least one reader, and a controller that controls the RF power of the at least one reader.
111 Citations
20 Claims
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1. A radio frequency identification (RFID) system, comprising:
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at least one RFID reader to read at least one RFID tag;
a sensor for determining a proximity parameter for said at least one tag with respect to said at least one reader; and
a controller that controls the RF power of said at least one reader. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of using a radio frequency identification (RFID) system, comprising:
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reading at least one RFID tag by an RFID reader;
determining a proximity parameter for said at least one RFID tag with respect to said at least one reader using a sensor; and
controlling the RF power of said at least one reader. - View Dependent Claims (16, 17, 18, 19)
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20. A signal-bearing medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus to perform a method of using a radio frequency identification (RFID) system, comprising:
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reading at least one RFID tag by an RFID reader;
determining a proximity parameter for said at least one RFID tag with respect to said at least one reader using a sensor; and
controlling the RF power of said at least one reader.
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Specification