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    METHOD AND DEVICE FOR AUTHENTICATING PASSIVE RFID TAG
    2.
    发明申请
    METHOD AND DEVICE FOR AUTHENTICATING PASSIVE RFID TAG 有权

    公开(公告)号：US20230051005A1

    公开(公告)日：2023-02-16

    申请号：US17787482

    申请日：2020-02-22

    申请人： NANJING UNIVERSITY ,  JIANGSU TOOKER ROBOTICS CO., LTD.

    发明人： Jia LIU ,  Lijun CHEN ,  Dong JIANG ,  Xingyu CHEN

    IPC分类号： G06K19/07 ,  H04L9/32

    摘要： A method for authenticating a passive RFID tag includes acquiring a tag fingerprint of a first tag as a first tag fingerprint, the first tag being the genuine tag; acquiring a tag fingerprint of a second tag as a second tag fingerprint, the second tag being the tag to be authenticated; comparing the first tag fingerprint with the second tag fingerprint: if the first tag fingerprint is consistent with the second tag fingerprint, determining that the second tag is a genuine tag, otherwise determining the second tag is a forged tag. The tag fingerprint is the persistence time enabling the passive RFID tag to operate normally during discharge after fully charging. The beneficial effects include being high in robustness to the change of environment and high in authentication accuracy and capable of being directly deployed on an existing commercial RFID device without modifying hardware of the tag and reader.

    TEMPERATURE MEASUREMENT METHOD AND APPARATUS BASED ON PASSIVE RFID TAG
    4.
    发明公开
    TEMPERATURE MEASUREMENT METHOD AND APPARATUS BASED ON PASSIVE RFID TAG 审中-公开

    公开(公告)号：US20240295446A1

    公开(公告)日：2024-09-05

    申请号：US18570703

    申请日：2021-06-18

    申请人： JIANGSU TOOKER ROBOTICS CO., LTD. ,  NANJING UNIVERSITY

    发明人： Jia LIU ,  Lijun CHEN ,  Xingyu CHEN ,  Xu ZHANG ,  Fuxing WANG

    IPC分类号： G01K11/00 ,  G06K19/07

    CPC分类号： G01K11/00 ,  G06K19/0717 ,  G06K19/0723

    摘要： A temperature measurement method based on a passive RFID tag. The method comprises: acquiring a circuit temperature feature of a tag multiple times, and establishing a tag temperature-feature correspondence; and estimating, by using the tag temperature-feature correspondence and the current circuit temperature feature of the tag, the temperature of an environment where the tag is located, wherein the circuit temperature feature of the tag is the persistence time within which a passive RFID tag can operate normally during a discharging process after the tag is fully charged. By means of the method, a robust and accurate temperature measurement is achieved, and a tag can be directly deployed on an existing commercial RFID device without modifying the hardware of the tag and a reader.