- 专利标题: RFID loss-prevention based on transition risk
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申请号: US16728480申请日: 2019-12-27
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公开(公告)号: US11017349B1公开(公告)日: 2021-05-25
- 发明人: Christopher J. Diorio , Alberto Pesavento
- 申请人: Impinj, Inc.
- 申请人地址: US WA Seattle
- 专利权人: Impinj, Inc.
- 当前专利权人: Impinj, Inc.
- 当前专利权人地址: US WA Seattle
- 代理机构: Hertzberg, Turk & Associates, LLC
- 主分类号: G06Q10/08
- IPC分类号: G06Q10/08 ; G06K19/07 ; G06K7/10 ; G06K19/077 ; G08B13/24
摘要:
An RFID loss-prevention system (LPS) may monitor RFID-tagged items in a facility. An RFID reader transmits a first inventory command configured to cause tags in a first state to respond, receive a reply from a first tag, determine that the first tag has a low transition risk, and cause the first tag to switch to a second state. The reader may also receive a reply from a second tag, determine that the second tag has a high transition risk, and cause the second tag to remain in the first state. The reader may then transmit a second inventory command configured to cause tags in the first state to respond, receive a reply from the second tag in response to the second inventory command, determine that the second tag has inappropriately exited the facility, and issue an alert.
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