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    • 4. 发明授权
    • System and a node used in the system for wireless communication and sensory monitoring
    • 系统和用于无线通信和感觉监控的系统中使用的节点
    • US07433648B2
    • 2008-10-07
    • US10750550
    • 2003-12-31
    • Raj Bridgelall
    • Raj Bridgelall
    • H04B7/00
    • H01Q1/007H04L67/12H04W16/28H04W84/04
    • A system is provided for communication and sensory monitoring. The system comprises a plurality of nodes installed as a network in a structure. Each of the plurality of nodes comprises an internode transceiver for wireless communication between nodes, a wireless network transceiver for wireless communication with one or more wireless devices, one or more sensors for monitoring the environment of the structure and a processor coupled to the internode transceiver, the wireless network transceiver and the one or more sensors to exchange data with the internode transceiver, the wireless network transceiver and the one or more sensors devices coupled to the processor and process the data. The system also includes a wide area network bridge coupled to the plurality of network nodes. The network bridge receives data from the plurality of network nodes and passes the information to a computer network for processing.
    • 提供一种用于通信和感觉监控的系统。 该系统包括在结构中作为网络安装的多个节点。 多个节点中的每一个包括用于节点之间的无线通信的节点间收发器,用于与一个或多个无线设备进行无线通信的无线网络收发器,用于监视该结构的环境的一个或多个传感器以及耦合到节点间收发器的处理器, 无线网络收发器和一个或多个传感器以与节点收发器,无线网络收发器和耦合到处理器的一个或多个传感器设备交换数据并处理数据。 该系统还包括耦合到多个网络节点的广域网桥。 网桥从多个网络节点接收数据,并将该信息传递给计算机网络进行处理。
    • 8. 发明申请
    • Wireless locating and tracking systems
    • 无线定位和跟踪系统
    • US20060033609A1
    • 2006-02-16
    • US11244920
    • 2005-10-05
    • Raj Bridgelall
    • Raj Bridgelall
    • G01S1/00H04Q5/22
    • H01Q1/2225G01S13/876G06K19/07767G06K2017/0045H01Q1/22H01Q3/247H01Q21/29
    • A locating and tracking system is provided in which the assets are desired to be located and tracked are associated with either radio frequency (RF) tags or radio frequency identification and radio frequency data communication (RFID/RFDC) devices. Depending on which device is attached to the asset, the other device is located at known locations. The RFID/RFDC devices interrogate and receive signals from the RF tags. The received information is sent to the host computer. With the location of either the RF tags or the RFID/RFDC devices known, the assets may be located and tracked. An improved RF tag antenna design is also provided by using a switching mechanism connected to at least two antennas.
    • 提供了一种定位和跟踪系统,其中希望将资产定位和跟踪与射频(RF)标签或射频识别和射频数据通信(RFID / RFDC)设备相关联。 根据哪个设备连接到资产,其他设备位于已知位置。 RFID / RFDC设备询问并接收来自RF标签的信号。 接收到的信息被发送到主机。 随着RF标签或RFID / RFDC设备的位置已知,资产可能被定位和跟踪。 还通过使用连接到至少两个天线的开关机构来提供改进的RF标签天线设计。
    • 10. 发明申请
    • Item finding using RF signalling
    • 使用RF信号的项目查找
    • US20050285742A1
    • 2005-12-29
    • US10881020
    • 2004-06-29
    • Hal CharychRaj BridgelallSumita MalikMichael O'Haire
    • Hal CharychRaj BridgelallSumita MalikMichael O'Haire
    • G01S3/20G01S13/75G06K17/00G08B13/14
    • G06K17/00G01S3/20G01S13/751G06K7/10079G06K2017/0045
    • Methods and apparatus are provided for locating one among many items equipped with RFID tags. The apparatus comprises a portable system interrogating the RFID tags and receiving responses therefrom that depend at least on their bearing angle. A comparator selects responses from the one item and ignores others. An annunciator indicates the presence of the one item in the interrogator field of view and, desirably but not essentially, its relative proximity. A directional antenna whose beam pattern is limited in azimuth and/or elevation provides bearing angle information. Its field of view becomes progressively smaller as the antenna approaches the one item so that a user can substantially pinpoint its location without needing any of the usual RFID infrastructure. Tag response hit rate and/or signal strength provides range related information to the interrogator. Optionally, the presence of each new tag is announced until all new tags have been identified.
    • 提供了用于在配备有RFID标签的许多物品中定位的方法和装置。 该装置包括询问RFID标签并从其接收至少依赖于其承载角度的响应的便携式系统。 比较器选择一个项目的响应并忽略其他项目。 指示器指示在询问器视场中存在一个项目,并且希望但不是基本上它的相对接近度。 波束图案在方位和/或高度上被限制的定向天线提供了轴承角度信息。 随着天线接近一个项目,其视野逐渐变小,使得用户可以基本上精确定位其位置,而不需要任何通常的RFID基础设施。 标签响应命中率和/或信号强度向询问器提供范围相关信息。 可选地,每个新标签的存在被公布,直到所有新的标签被识别为止。