System and method for increased exit interrogation of RFID tags
AssigneeSensormatic Electronics Corporation
InventorsJohn A. Allen, Michael Del Busto
Life of this patent
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Abstract
In an aspect, the present disclosure includes a system for interrogating a person exiting a store. The system comprises one or more pedestals positioned to define an exit portal leading to a point of exit, one or more mmWave sensors, fixedly positioned near the point of exit, configured to receive one or more reflected mmWave beams from a person approaching the point of exit and triggering an interrogation of a security tag; and one or more security tag readers, fixedly positioned with the one or more pedestals, configured to read data from the security tag passing through the exit portal.
Claims17
A system for interrogating a person exiting a store, comprising:
- one or more pedestals positioned to define an exit portal leading to a point of exit;
- one or more mmWave sensors, fixedly positioned near the point of exit, configured to receive one or more reflected mmWave beams from a person approaching the point of exit and triggering an interrogation of a security tag;
- one or more security tag readers, fixedly positioned with the one or more pedestals, configured to read data from the security tag passing through the exit portal in response to triggering the interrogation;
- and
- an exit system configured to:
- steer beams of a first subset of the one or more security tag readers toward the person;
- and
- disable a second subset of the one or more security tag readers, wherein the second subset include security tag readers beyond a threshold distance from the point of exit.
A method of interrogating a person exiting a store, comprising:
- transmitting one or more interrogation mmWave beams to a person approaching a point of exit;
- receiving one or more reflected mmWave beams from the person;
- triggering an interrogation of a security tag in response to receiving the one or more reflected mmWave beams;
- and
- reading data from the security tag;
- wherein triggering the interrogation of the security tag comprises:
- steering beams of a first subset of the one or more security tag readers toward the person;
- and
- disabling a second subset of the one or more security tag readers, wherein the second subset include security tag readers beyond a threshold distance from the point of exit.
A non-transitory computer readable medium comprising instructions that, when executed by one or more processors, cause the one or more processors to:
- cause one or more mmWave transmitters to transmit one or more interrogation mmWave beams to a person approaching a point of exit;
- cause one or more mmWave sensors to receive one or more reflected mmWave beams from the person;
- triggering an interrogation of a security tag in response to receiving the one or more reflected mmWave beams;
- reading data from the security tag;
- steering beams of a first subset of the one or more security tag readers toward the person;
- and
- disabling a second subset of the one or more security tag readers, wherein the second subset include security tag readers beyond a threshold distance from the point of exit.
Dependencies are inferred from the claim text.