Method For Simultaneously Detecting A Plurality Of RFID Tags Using Multiuser Detection

    公开(公告)号:US20170374438A1

    公开(公告)日:2017-12-28

    申请号:US15700159

    申请日:2017-09-10

    IPC分类号: H04Q9/00

    摘要: A method and apparatus are disclosed that apply multiuser detection (MUD) analysis to an aggregated RF response from a plurality of simultaneously queried RFID tags, so as to distinguish the individual tag responses. The claimed method thereby significantly reduces RFID detection latency when multiple tags are simultaneously queried. Some embodiments transmit carrier waves at more than one frequency, such as a plurality of equally-spaced frequencies, so as to enhance the MUD analysis by incorporating a multi-frequency dimension. Other embodiments incorporate additional spatial dimensions by deploying multiple RF detection antennae at separated locations. The number of colliding tag responses must be estimated before MUD analysis can be applied. In some embodiments other signal parameters must be estimated, such as signal bias and an impulse function for each responding tag that characterizes alterations of the RF signal while in transit due to propagation distance, passage through intervening objects, and reflections.

    Network device management using an RFID system
    5.
    发明授权
    Network device management using an RFID system 有权
    使用RFID系统进行网络设备管理

    公开(公告)号:US09137589B2

    公开(公告)日:2015-09-15

    申请号:US12234375

    申请日:2008-09-19

    申请人: Gayle L. Noble

    发明人: Gayle L. Noble

    IPC分类号: H04Q5/22 H04Q9/00

    摘要: Network device management using an RFID system. In one example embodiment, a method of determining the status of a network device may include communicating between a host computing device and a network device, communicating between the host computing device and an RFID reader, storing one or more status parameters of the network device in an RFID tag that is coupled to the network device, sending an interrogation signal from the RFID reader to an RFID tag, receiving the one or more status parameters from the RFID tag at the RFID reader, receiving the one or more status parameters from the RFID reader at the host computing device, storing the one or more status parameters in a database at the host computing device, and displaying the one or more status parameters to a user that is located remote from the predetermined location of the network device.

    摘要翻译: 使用RFID系统进行网络设备管理。 在一个示例实施例中,确定网络设备的状态的方法可以包括主机计算设备和网络设备之间的通信,在主机计算设备和RFID读取器之间进行通信,将网络设备的一个或多个状态参数存储在 耦合到网络设备的RFID标签,将来自RFID读取器的询问信号发送到RFID标签,在RFID读取器处从RFID标签接收一个或多个状态参数,从RFID接收一个或多个状态参数 读取器,在主机计算设备处将一个或多个状态参数存储在数据库中,并且将一个或多个状态参数显示给远离网络设备的预定位置的用户。

    Inclusive or Exclusive RFID Tag Interrogation and Query Round
    7.
    发明申请
    Inclusive or Exclusive RFID Tag Interrogation and Query Round 有权
    独家或独家RFID标签询问和查询回合

    公开(公告)号:US20100148933A1

    公开(公告)日:2010-06-17

    申请号:US12553930

    申请日:2009-09-03

    申请人: Farron Dacus

    发明人: Farron Dacus

    IPC分类号: H04Q5/22

    摘要: Embodiments of the present invention allow for dynamic selection and query of different types of RFID tags into a session. Embodiments of the present invention also allow for dynamic activation of different types of RFID tags. In certain embodiments of the invention, an inclusive operation is performed on the RFID tags and in other embodiments an exclusive operation is performed.

    摘要翻译: 本发明的实施例允许动态选择和查询不同类型的RFID标签到会话中。 本发明的实施例还允许动态激活不同类型的RFID标签。 在本发明的某些实施例中,对RFID标签进行包容性操作,并且在其他实施例中执行排他性操作。

    Modular data concentrator device for public utility metering systems and method for gathering and managing information

    公开(公告)号:US11770644B2

    公开(公告)日:2023-09-26

    申请号:US17267745

    申请日:2019-08-12

    IPC分类号: H04Q9/00 H04Q9/04

    摘要: The present invention relates to a modular data concentrator device for AMI (Advanced Measurement Infrastructure) measurement systems, which is interoperable and has the ability to have the communication protocols of multiple brands of meters embedded and has a fully modular structure, in such a way that one or more communication modules can be integrated, depending on the type of communication of each of the meters to be managed. Thus, the device of the invention allows to manage with the same data concentrator, different brands of meters, whether energy, water or gas, regardless of the communication protocol they use and the communication medium they have, which guarantees to any public utility company that when using this modular device, only a single management software will be required, thus guaranteeing having in a single database format the information of all the managed meters.