RFID tag detection method and system
First Claim
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1. An RFID tag detection method comprising:
- transmitting, in a predetermined area, a predetermined number of RFID tag request signals;
determining that an RFID tag is positioned within the predetermined area based on a comparison of a count of zero or more received RFID tag response signals from the RFID tag with the predetermined number of RFID tag request signals, wherein a RFID tag response signal consists of a single identifier unique with respect to other RFID tags positioned within the predetermined area, and wherein the determining step comprises reading the single, unique identifier;
repeating the determining step at the predetermined location for each unique RFID tag from which an RFID tag response signal is received, wherein repeating the determining step is based solely on the comparison; and
storing a count of the unique RFID tags determined to be positioned within the predetermined area.
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Abstract
An RFID tag detection method and system are described. The method comprises transmitting, in a predetermined area, a predetermined number of RFID tag request signals. The method also comprises determining that an RFID tag is positioned within the predetermined area based on a comparison of a count of zero or more received RFID tag response signals from the RFID tag with the predetermined number of RFID tag request signals.
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Citations
18 Claims
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1. An RFID tag detection method comprising:
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transmitting, in a predetermined area, a predetermined number of RFID tag request signals; determining that an RFID tag is positioned within the predetermined area based on a comparison of a count of zero or more received RFID tag response signals from the RFID tag with the predetermined number of RFID tag request signals, wherein a RFID tag response signal consists of a single identifier unique with respect to other RFID tags positioned within the predetermined area, and wherein the determining step comprises reading the single, unique identifier; repeating the determining step at the predetermined location for each unique RFID tag from which an RFID tag response signal is received, wherein repeating the determining step is based solely on the comparison; and storing a count of the unique RFID tags determined to be positioned within the predetermined area. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An RFID tag detection system comprising:
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an antenna arranged to transmit a tag request and receive a tag response; a memory comprising a set of executable instructions; and a processor communicatively coupled with the memory and the antenna and arranged to execute one or more instructions of the set of executable instructions, execution of the one or more instructions by the processor causes the processor to cause the antenna to transmit a predetermined number of RFID tag requests and to determine that an RFID tag is either a not of interest tag based on receipt of RFID tag responses from the RFID tag less than the predetermined number of RFID tag requests transmitted or a tag of interest, wherein a RFID tag response consists of a single identifier unique with respect to other RFID tags positioned within the predetermined area, and wherein the determination comprises reading the single, unique identifier, and to repeat the determination at the predetermined location for each unique RFID tag from which an RFID tag response signal is received, wherein the repeated determination is based solely on the comparison, and to store a count of the unique RFID tags determined to be positioned within the predetermined area. - View Dependent Claims (9, 10, 11, 12)
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- 13. A memory storing instructions which, when executed by a processor, cause the processor to transmit, in a predetermined area, a predetermined number of RFID tag requests and determine that an RFID tag is positioned within the predetermined area based on comparing a count of zero of more received RFID tag responses from the RFID tag with the predetermined number of RFID tag requests transmitted, wherein a RFID tag response consists of a single identifier unique with respect to other RFID tags positioned within the predetermined area, and wherein the determination comprises reading the single, unique identifier, and to repeat the determination at the predetermined location for each unique RFID tag from which an RFID tag response signal is received, wherein the repeated determination is based solely on the count comparison, and to store a count of the unique RFID tags determined to be positioned within the predetermined area.
Specification