Near-field RFID reader antenna
    11.
    发明授权
    Near-field RFID reader antenna 有权
    近场RFID阅读器天线

    公开(公告)号:US08212679B2

    公开(公告)日:2012-07-03

    申请号:US12507258

    申请日:2009-07-22

    IPC分类号: G08B13/14

    摘要: A near-field radio frequency identification (RFID) reader antenna is provided. The near-field RFID reader antenna is intended to separately recognize adjacent items to which a plurality of small RFID tags are attached, such as wines displayed on a shelf in a store or chip trays on casino tables, using a near field. The near-field REID reader antenna includes a dielectric layer, at least one signal line formed on the dielectric layer, a ground surface formed under the dielectric layer, at least one ground line formed under the dielectric layer to be electrically connected to the ground surface in parallel with the signal line, at least one signal stub formed to be electrically connected to the signal line toward the ground line, and at least one ground stub formed to be electrically connected to the ground line toward the signal line in parallel with the signal stub.

    摘要翻译: 提供了近场射频识别(RFID)阅读器天线。 近场RFID读取器天线旨在使用近场来单独识别附接有多个小RFID标签的相邻物品,例如在娱乐场桌上的商店或筹码盘中的货架上显示的葡萄酒。 近场REID读取器天线包括电介质层,形成在电介质层上的至少一条信号线,形成在电介质层下面的接地表面,形成在电介质层之下的至少一个接地线,以电连接到地表面 与信号线并联,至少一个信号短截线形成为电连接到信号线朝向接地线,以及至少一个接地短截线,其形成为与信号线电连接到信号线并与信号 存根。

    Apparatus and method for determining operation mode of node in ad hoc network
    12.
    发明授权
    Apparatus and method for determining operation mode of node in ad hoc network 失效
    确定自组织网络节点运行模式的装置和方法

    公开(公告)号:US08181044B2

    公开(公告)日:2012-05-15

    申请号:US12628183

    申请日:2009-11-30

    IPC分类号: G06F1/00 G06F9/44 G06F15/173

    CPC分类号: G06F1/3209 Y02D70/20

    摘要: Provided is a method of determining an operation mode of a node in an ad hoc network. The method includes: monitoring a measured amount of residual energy of the node and comparing the measured amount of residual energy of the node with an amount of residual energy theoretically calculated for the node; identifying an amount of information in a queue included in the node; calculating a relay probability of the node by reflecting the identified amount of information in the queue and the result of comparing the measured amount of residual energy of the node with the theoretically calculated amount of residual energy for the node; and determining the operation mode of the node to be one of a relay mode and a transmission mode, based on the calculated relay probability of the node. The method enables nodes to exchange information about their respective amounts of residual energy and analyze the information without using additional resources and processes.

    摘要翻译: 提供了确定自组织网络中的节点的操作模式的方法。 该方法包括:监测节点的测量量的剩余能量,并将测量的节点剩余能量与理论计算的节点余量进行比较; 识别包括在所述节点中的队列中的信息量; 通过反映队列中所识别的信息量来计算节点的中继概率,以及将节点的残余能量的测量量与理论计算的节点余量进行比较的结果; 以及基于所计算的所述节点的中继概率,将所述节点的操作模式确定为中继模式和传输模式之一。 该方法使节点能够交换关于其各自剩余能量的信息,并分析信息而不使用额外的资源和过程。

    Method for identifying multiple moving tags with multiple readers
    13.
    发明授权
    Method for identifying multiple moving tags with multiple readers 失效
    用多个读卡器识别多个移动标签的方法

    公开(公告)号:US08115603B2

    公开(公告)日:2012-02-14

    申请号:US11828703

    申请日:2007-07-26

    CPC分类号: G06K7/0008 G06K7/10356

    摘要: Disclosed is a method for identifying a plurality of moving tags by using a plurality of Radio Frequency Identification (RFID) readers. The technology of the present invention efficiently identifies multiple moving tags to thereby improve the identification rate and reading speed of an RFID system and increase the throughput of the RFID system. The method for identifying a plurality of moving tags by using a plurality of Radio Frequency Identification (RFID) readers includes the steps of: a) grouping the multiple tags into a predetermined number of tag groups; b) allocating the tag groups to the RFID readers respectively; and c) identifying tags of each allocated tag group in each RFID reader.

    摘要翻译: 公开了一种通过使用多个射频识别(RFID)读取器识别多个移动标签的方法。 本发明的技术有效地识别多个移动标签,从而提高RFID系统的识别率和读取速度,并提高RFID系统的吞吐量。 通过使用多个射频识别(RFID)读取器来识别多个移动标签的方法包括以下步骤:a)将多个标签分组成预定数量的标签组; b)分别将标签组分配给RFID阅读器; 以及c)识别每个RFID读取器中每个分配的标签组的标签。

    Method for managing dormant nodes in wireless sensor network
    16.
    发明授权
    Method for managing dormant nodes in wireless sensor network 失效
    无线传感器网络中休眠节点的管理方法

    公开(公告)号:US08040828B2

    公开(公告)日:2011-10-18

    申请号:US12085784

    申请日:2006-11-29

    IPC分类号: G08C17/00 H04H20/71

    摘要: Provided is a method for managing dormant nodes in a wireless sensor network. The method includes the steps of: a) acquiring and storing information on distance and location of sensor nodes registered in a corresponding cluster among at least one cluster managed by a managing node; b) selecting a dormant object node among the sensor nodes by the managing node; c) transmitting dormant information that the dormant object node should go into a dormant state for a predetermined period through a beacon message to the dormant object node and creating a dormant node management table; and d) updating a dormant time of the dormant node management table every beacon cycle by the managing node according to setup of a dormant time central managing function and notifying dormancy expiration to the corresponding dormant node.

    摘要翻译: 提供了一种用于管理无线传感器网络中的休眠节点的方法。 该方法包括以下步骤:a)获取和存储关于由管理节点管理的至少一个集群中登记在对应集群中的传感器节点的距离和位置的信息; b)由所述管理节点选择所述传感器节点之间的休眠对象节点; c)通过到休眠对象节点的信标消息发送休眠对象节点进入休眠状态预定时间的休眠信息,并创建休眠节点管理表; 以及d)根据休眠时间中央管理功能的设置,通过管理节点更新每个信标周期的休眠节点管理表的休眠时间,并将休眠期间通知给相应的休眠节点。

    Apparatus for synchronizing clock in real-time locating system and method therefor
    17.
    发明授权
    Apparatus for synchronizing clock in real-time locating system and method therefor 失效
    用于实时定位系统中的时钟同步的装置及其方法

    公开(公告)号:US08005369B2

    公开(公告)日:2011-08-23

    申请号:US12085767

    申请日:2005-12-27

    IPC分类号: H04B10/00

    摘要: A highly precise clock synchronization apparatus in a real-time locating system (RTLS), includes an optical transmitting/receiving unit for receiving a clock information frame from a clock synchronization server, converting the received clock information frame in series-parallel, and transmitting/receiving the clock information data and the clock information; an offset estimation unit for detecting a preamble signal and a clock information signal from the series-parallel converted clock information frame, calculating a phase difference value by comparing the detected preamble signal with the detected clock information signal, and outputting an offset value based on the calculated phase difference value; and a clock synchronization unit for updating a local clock value to a time of the clock synchronization server based on the offset value and the clock information frame.

    摘要翻译: 一种实时定位系统(RTLS)中的高精度时钟同步装置,包括一个用于从时钟同步服务器接收时钟信息帧的光发送/接收单元,并行地接收所接收的时钟信息帧,并发送/ 接收时钟信息数据和时钟信息; 偏移估计单元,用于从串并行转换时钟信息帧中检测前置码信号和时钟信息信号,通过将检测到的前导信号与检测到的时钟信息信号进行比较来计算相位差值,并输出基于 计算相位差值; 以及时钟同步单元,用于基于偏移值和时钟信息帧将本地时钟值更新为时钟同步服务器的时间。

    METHOD AND APPARATUS FOR SETTING ROUTING PATH IN WIRELESS SENSOR NETWORK
    18.
    发明申请
    METHOD AND APPARATUS FOR SETTING ROUTING PATH IN WIRELESS SENSOR NETWORK 审中-公开
    用于在无线传感器网络中设置路由路径的方法和装置

    公开(公告)号:US20110125922A1

    公开(公告)日:2011-05-26

    申请号:US12808522

    申请日:2008-07-09

    IPC分类号: G06F15/173

    CPC分类号: H04W40/12 H04L45/48

    摘要: Provided are a method and apparatus for setting a routing path in a wireless sensor network. The apparatus for setting a routing path includes a neighbor table storing information of a peripheral device within wireless communication distance of a transmitter transmitting data; a searching unit sequentially searching whether at least one of an address of a destination, a parent address or ancestor address of the destination representing an address of a receiver receiving data transmitted by the transmitter exists or not in the neighbor table; and a link quality indicator (LQI) judging unit transmitting the data to the receiver when a LQI value of the address is greater than a value that is previously set in a case in which an address is searched in the searching unit.

    摘要翻译: 提供了一种在无线传感器网络中设置路由路径的方法和装置。 用于设置路由路径的装置包括存储发送数据的无线通信距离内的外围设备的信息的邻居表; 搜索单元,顺序地搜索表示在所述邻居表中是否存在由所述发射机发送的接收数据的接收方的地址的目的地的地址,母地址或祖先地址中的至少一个; 以及当地址的LQI值大于在搜索单元中搜索地址的情况下预先设置的值时,将数据发送到接收机的链路质量指示符(LQI)判断单元。

    APPARATUS AND METHOD FOR COMMUNICATION IN WIRELESS SENSOR NETWORK
    19.
    发明申请
    APPARATUS AND METHOD FOR COMMUNICATION IN WIRELESS SENSOR NETWORK 审中-公开
    无线传感器网络通信的装置和方法

    公开(公告)号:US20110116414A1

    公开(公告)日:2011-05-19

    申请号:US12808509

    申请日:2008-03-18

    IPC分类号: H04W4/00 H04L12/28

    CPC分类号: H04W72/08 H04W24/04 H04W84/18

    摘要: Provided are a bridge system, a network management server, and communication methods at the bridge system and the network management server for efficient communication in a wireless sensor network (WSN). The communication method at the network management server includes communicating with bridge systems connected with a plurality of radio frequency (RF) regions within a personal area network (PAN) composed of sensor nodes using the same wireless channel, in which radio signals of the sensor nodes within the PAN reach the bridge systems, searching for a new channel to be used and an alternative bridge system which is to perform a channel change into the new channel based on information about the bridge systems upon receipt of an association failure report message from an error bridge system which is reported of an association failure from the RF region from among the bridge systems, sending a channel change request message to the found alternative bridge system, and adjusting channel information for the found alternative bridge system to the new channel and replacing information about sensor nodes connected to the found alternative bridge system with information about sensor nodes that are newly connected with the found alternative bridge system through the new channel.

    摘要翻译: 提供桥接系统,网络管理服务器,桥接系统和网络管理服务器的通信方法,用于无线传感器网络(WSN)中的高效通信。 网络管理服务器的通信方法包括与使用相同无线信道的由传感器节点组成的个人区域网络(PAN)内的多个射频(RF)区域连接的桥接系统进行通信,其中传感器节点 在PAN内到达桥系统,搜索要使用的新信道和替代桥接系统,该桥接系统在从错误接收到关联故障报告消息时基于关于桥系统的信息来执行信道改变到新信道 报告了来自桥接系统中的RF区域的关联失败的桥接系统,向找到的替代桥接系统发送信道改变请求消息,以及将找到的替代网桥系统的信道信息调整到新信道,并替换关于 传感器节点连接到找到的替代桥接系统,其中包含有关传感器节点的信息 通过新渠道与找到的替代桥梁系统新连接。

    Power control method for mobile RFID reader and RFID reader using the same
    20.
    发明授权
    Power control method for mobile RFID reader and RFID reader using the same 有权
    移动RFID阅读器和RFID阅读器的电源控制方法使用相同

    公开(公告)号:US07893834B2

    公开(公告)日:2011-02-22

    申请号:US11607502

    申请日:2006-11-29

    IPC分类号: G08B13/14

    CPC分类号: H04B5/02 H04B5/0056 H04W52/04

    摘要: Provided is a power control method for a mobile Radio Frequency Identification (RFID) reader and an RFID reader using the same. The RFID reader includes: an RFID reader transmission/reception control unit for creating a message to be transmitted to an RFID tag and transmitting RFID tag information to a terminal control unit; a reader transmitting unit for encoding and modulating the created message; a power amplifier for amplifying an output signal; a reader receiving unit for demodulating and decoding the signal and transmitting the signal to the RFID reader transmission/reception control unit; and an RFID reader power control unit for controlling power, wherein when the RFID reader transmission/reception control unit receives a command for acquiring the RFID tag information, the RFID reader power control unit applies power to the power amplifier.

    摘要翻译: 提供了一种用于移动射频识别(RFID)读取器和使用其的RFID读取器的功率控制方法。 RFID读取器包括:RFID读取器发送/接收控制单元,用于创建要发送到RFID标签的消息并向终端控制单元发送RFID标签信息; 用于对所创建的消息进行编码和调制的读取器发送单元; 用于放大输出信号的功率放大器; 读取器接收单元,用于解调和解码信号并将信号发送到RFID读取器发送/接收控制单元; 以及用于控制电力的RFID读取器功率控制单元,其中当RFID读取器发送/接收控制单元接收到用于获取RFID标签信息的命令时,RFID读取器功率控制单元向功率放大器施加电力。