RFID tag with visual environmental condition monitor
    2.
    发明授权
    RFID tag with visual environmental condition monitor 有权
    RFID标签与视觉环境状况监视器

    公开(公告)号:US07209042B2

    公开(公告)日:2007-04-24

    申请号:US11017534

    申请日:2004-12-20

    IPC分类号: G08B13/14

    摘要: A combination RFID tag intended to be associated with a host product, for example by being secured to the outside of a package containing a perishable product, e.g. foodstuffs or vaccines, which RFID tag is provided with a visually readable environmental condition exposure indicator. The visual indicator can sense the exposure of the RFID tag to an environmental condition e.g. temperature, experienced by the host product providing a visual indication, e.g. a color change, readable externally of the RFID tag of the sensed environmental condition. The visual indicator can be chemically active, for example an acetylenic agent, and may be responsive to cumulative temperature excursions over time. The novel RFID tag 11 and tag inspection methods of the invention permit an efficacious harnessing of information about the condition exposure history of a specific inventory item including product identification and related data. The information from multiple items can be compiled into a database that may be audited or statistically analyzed to reveal useful information regarding the handling of the items.

    摘要翻译: 旨在与主体产品相关联的组合RFID标签,例如通过固定到包含易腐产品的包装的外部,例如固定在其上。 食品或疫苗,其RFID标签设置有视觉可读的环境条件暴露指示符。 视觉指示器可以感测RFID标签在环境条件下的曝光。 由主体产品提供视觉指示所经历的温度,例如 在所感测的环境条件的RFID标签的外部可读取的颜色变化。 视觉指示剂可以是化学活性的,例如炔属试剂,并且可以响应于随时间的累积温度偏移。 本发明的新型RFID标签11和标签检查方法允许有效地利用关于包括产品标识和相关数据的特定库存物品的条件曝光历史的信息。 来自多个项目的信息可以被编译成可以被审计或统计分析的数据库,以揭示关于项目的处理的有用信息。