METHOD FOR MEASURING LOCATION OF RADIO FREQUENCY IDENTIFICATION READER BY USING BEACON
    1.
    发明申请
    METHOD FOR MEASURING LOCATION OF RADIO FREQUENCY IDENTIFICATION READER BY USING BEACON 有权
    利用BEACON测量无线电频率识别读取器的位置的方法

    公开(公告)号:US20100066503A1

    公开(公告)日:2010-03-18

    申请号:US12624096

    申请日:2009-11-23

    IPC分类号: H04Q5/22

    摘要: The present invention relates to a method for measuring a location of a radio frequency identification (RFID) reader by using beacons, and an RFID system for measuring a location of a moving RFID reader in an RFID system comprising: a plurality of beacon devices for emitting beacons; an RFID tag for transmitting pre-stored information by using radio frequency identification; and an RFID reader for calculating a current location using a plurality of at least three beacons wherein the RFID reader receives the plurality of beacons from the plurality of beacon devices while moving, and receiving the information from the RFID tag by using the radio frequency identification. According to the present invention, it is possible to increase the accuracy of the location measurement of a moving RFID reader in an RFID system because the location of the RFID reader is measured in consideration of propagation environments.

    摘要翻译: 本发明涉及一种通过使用信标测量射频识别(RFID)读取器的位置的方法,以及用于测量RFID系统中的移动RFID读取器的位置的RFID系统,包括:用于发射的多个信标装置 信标 用于通过使用射频识别来发送预先存储的信息的RFID标签; 以及RFID读取器,用于使用多个至少三个信标来计算当前位置,其中RFID读取器在移动的同时从多个信标装置接收多个信标,并且通过使用射频识别从RFID标签接收信息。 根据本发明,可以提高RFID系统中的移动RFID读取器的位置测量的精度,因为考虑到传播环境来测量RFID读取器的位置。

    Method for determining optimal frame size for tag collision prevention in RFID system
    2.
    发明授权
    Method for determining optimal frame size for tag collision prevention in RFID system 有权
    确定RFID系统中标签碰撞预防的最佳帧大小的方法

    公开(公告)号:US08610544B2

    公开(公告)日:2013-12-17

    申请号:US12623999

    申请日:2009-11-23

    IPC分类号: H04Q5/22

    CPC分类号: H04W28/06 H04W74/08

    摘要: The present invention relates to a method for determining an optimal frame size for tag collision prevention in an Aloha-based RFID system in which frame sizes limited to a certain unit are used to identify tags, the method including the steps of using an RFID for: (a) calculating an estimated optimal frame value for the RFID reader identifying the tags; (b) calculating expected time delays per tag of a left-hand frame size and a right-hand frame size, which show the smallest differences with respect to the estimated optimal frame value, among the frame sizes; (c) comparing, the expected time delay per tag of the left-hand frame size with that of the right-hand frame size; and (d) determining a frame size which has a smaller expected time delay per tag, between the left-hand frame size and the right-hand frame size, to be an optimal frame size.

    摘要翻译: 本发明涉及一种在基于Aloha的RFID系统中确定用于标签碰撞预防的最佳帧大小的方法,其中使用限于某个单元的帧大小来识别标签,该方法包括以下步骤: (a)计算识别标签的RFID读取器的估计最佳帧值; (b)在帧大小之间计算每个标签的左侧帧大小和右侧帧大小的预测时间延迟,其显示相对于估计的最佳帧值的最小差异; (c)将左侧帧大小的每个标签的预期时间延迟与右侧帧大小的预期时间延迟进行比较; 以及(d)确定在左侧帧大小和右侧帧大小之间具有较小的每个标签的预期时间延迟的帧大小为最佳帧大小。

    Method for measuring location of radio frequency identification reader by using beacon
    3.
    发明授权
    Method for measuring location of radio frequency identification reader by using beacon 有权
    使用信标测量射频识别阅读器位置的方法

    公开(公告)号:US08629773B2

    公开(公告)日:2014-01-14

    申请号:US12624096

    申请日:2009-11-23

    IPC分类号: G08B13/14

    摘要: The present invention relates to a method for measuring a location of a radio frequency identification (RFID) reader by using beacons, and an RFID system for measuring a location of a moving RFID reader in an RFID system comprising: a plurality of beacon devices for emitting beacons; an RFID tag for transmitting pre-stored information by using radio frequency identification; and an RFID reader for calculating a current location using a plurality of at least three beacons wherein the RFID reader receives the plurality of beacons from the plurality of beacon devices while moving, and receiving the information from the RFID tag by using the radio frequency identification. According to the present invention, it is possible to increase the accuracy of the location measurement of a moving RFID reader in an RFID system because the location of the RFID reader is measured in consideration of propagation environments.

    摘要翻译: 本发明涉及一种通过使用信标测量射频识别(RFID)读取器的位置的方法,以及用于测量RFID系统中的移动RFID读取器的位置的RFID系统,包括:用于发射的多个信标装置 信标 用于通过使用射频识别来发送预先存储的信息的RFID标签; 以及RFID读取器,用于使用多个至少三个信标来计算当前位置,其中RFID读取器在移动的同时从多个信标装置接收多个信标,并且通过使用射频识别从RFID标签接收信息。 根据本发明,可以提高RFID系统中的移动RFID读取器的位置测量的精度,因为考虑到传播环境来测量RFID读取器的位置。

    METHOD FOR DETERMINING OPTIMAL FRAME SIZE FOR TAG COLLISION PREVENTION IN RFID SYSTEM
    4.
    发明申请
    METHOD FOR DETERMINING OPTIMAL FRAME SIZE FOR TAG COLLISION PREVENTION IN RFID SYSTEM 有权
    用于确定RFID系统中的标签碰撞预防的最佳帧大小的方法

    公开(公告)号:US20110063085A1

    公开(公告)日:2011-03-17

    申请号:US12623999

    申请日:2009-11-23

    IPC分类号: G06K7/01

    CPC分类号: H04W28/06 H04W74/08

    摘要: The present invention relates to a method for determining an optimal frame size for tag collision prevention in an Aloha-based RFID system in which frame sizes limited to a certain unit are used to identify tags, the method including the steps of using an RFID for: (a) calculating an estimated optimal frame value for the RFID reader identifying the tags; (b) calculating expected time delays per tag of a left-hand frame size and a right-hand frame size, which show the smallest differences with respect to the estimated optimal frame value, among the frame sizes; (c) comparing, the expected time delay per tag of the left-hand frame size with that of the right-hand frame size; and (d) determining a frame size which has a smaller expected time delay per tag, between the left-hand frame size and the right-hand frame size, to be an optimal frame size.

    摘要翻译: 本发明涉及一种在基于Aloha的RFID系统中确定用于标签碰撞预防的最佳帧大小的方法,其中使用限于某个单元的帧大小来识别标签,该方法包括以下步骤: (a)计算识别标签的RFID读取器的估计最佳帧值; (b)在帧大小之间计算每个标签的左侧帧大小和右侧帧大小的预测时间延迟,其显示相对于估计的最佳帧值的最小差异; (c)将左侧帧大小的每个标签的预期时间延迟与右侧帧大小的预期时间延迟进行比较; 以及(d)确定在左侧帧大小和右侧帧大小之间具有较小的每个标签的预期时间延迟的帧大小为最佳帧大小。