APPARATUS AND METHOD FOR LOCATING RFID TAG
    21.
    发明申请
    APPARATUS AND METHOD FOR LOCATING RFID TAG 失效
    用于定位RFID标签的设备和方法

    公开(公告)号:US20100214067A1

    公开(公告)日:2010-08-26

    申请号:US12646784

    申请日:2009-12-23

    IPC分类号: H04Q5/22

    摘要: Provided are a Radio Frequency Identification (RFID) tag and apparatus and method for locating a RFID tag without comparing arrival times of blink signals transmitted from the RFID tag in order to quickly trace a location of the RFID tag. The RFID tag includes a tag ID generator configured to generate a tag ID of the RFID tag, a blink generator configured to generate a plurality of sub-blink signals that form the blink signal, a sub-blink ID generator configured to generate sub-blink IDs for the generated sub-blink signals, a sub-blink ID inserter configured to insert the generated sub-blink IDs into the sub-blink signals, and a transmitter configured to transmit the blink signal having the tag ID and the sub-blink IDs.

    摘要翻译: 提供了一种用于定位RFID标签的射频识别(RFID)标签和装置和方法,而不比较从RFID标签发送的眨眼信号的到达时间,以便快速跟踪RFID标签的位置。 RFID标签包括被配置为生成RFID标签的标签ID的标签ID发生器,被配置为生成形成眨眼信号的多个子眨眼信号的眨眼发生器,被配置为生成眨眼的子眨眼ID生成器 生成的子眨眼信号的ID,被配置为将生成的眨眼ID插入到子眨眼信号中的子眨眼ID插入器;以及发送器,被配置为发送具有标签ID和子眨眼ID的眨眼信号 。

    APPARATUS AND METHOD FOR TRANSMITTING PACKET DATA IN WIRELESS SENSOR NETWORK
    22.
    发明申请
    APPARATUS AND METHOD FOR TRANSMITTING PACKET DATA IN WIRELESS SENSOR NETWORK 有权
    在无线传感器网络中发送分组数据的装置和方法

    公开(公告)号:US20110110218A1

    公开(公告)日:2011-05-12

    申请号:US12794997

    申请日:2010-06-07

    IPC分类号: H04J11/00 H04B7/00

    CPC分类号: H04J13/0048

    摘要: Provided is an apparatus and method for transmitting packet data in a WSN. The apparatus for transmitting packet data in a WSN includes: a serial-to-parallel converter to parallel-convert information and output the converted information to two channel paths; a Walsh code pair generation unit to select an arbitrary Walsh code pair, mix the selected Walsh code pair with a pseudo noise (PN) code, and output one Walsh code to one channel path and the other Walsh code to the other channel path; a first mixer to mix the signals inputted to two channel paths, and generate a spread symbol for each path; a delay to delay the other channel path signal by a predetermined time; and a transmission unit to convert one channel path signal and the other channel path signal delayed by the delay into transmission frequency band signals, and transmit the converted signals as wireless signals.

    摘要翻译: 提供了一种在WSN中发送分组数据的装置和方法。 用于在WSN中发送分组数据的装置包括:并行转换信息并将转换的信息输出到两个信道路径的串并转换器; 沃尔什码对生成单元,用于选择任意的沃尔什码对,将所选择的沃尔什码对与伪噪声(PN)码进行混合,并将一个沃尔什码输出到一个信道路径,另一个沃尔什码输出到另一个信道路径; 第一混频器,混合输入到两个声道路径的信号,并产生每个路径的扩展符号; 将另一个信道路径信号延迟预定时间的延迟; 以及发送单元,将一个信道路径信号和延迟了延迟的其他信道路径信号转换为发送频带信号,并将转换后的信号作为无线信号发送。

    Method for determining superframe for beacon scheduling
    24.
    发明授权
    Method for determining superframe for beacon scheduling 失效
    确定信标调度超帧的方法

    公开(公告)号:US08254342B2

    公开(公告)日:2012-08-28

    申请号:US12517556

    申请日:2007-10-24

    IPC分类号: H04J3/00

    摘要: Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

    摘要翻译: 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤:从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

    APPARATUS AND METHOD OF DYNAMICALLY MANAGING SENSOR MODULE ON SENSOR NODE IN WIRELESS SENSOR NETWORK
    26.
    发明申请
    APPARATUS AND METHOD OF DYNAMICALLY MANAGING SENSOR MODULE ON SENSOR NODE IN WIRELESS SENSOR NETWORK 审中-公开
    无线传感器网络传感器节点传感器模块动态管理的设备及方法

    公开(公告)号:US20110131320A1

    公开(公告)日:2011-06-02

    申请号:US12808432

    申请日:2008-11-17

    IPC分类号: G06F15/173

    CPC分类号: H04W92/02 H04W84/14

    摘要: Provided is an apparatus and method of dynamically managing a sensor module on a sensor node in a wireless sensor network. The apparatus includes an update unit, a request unit, and a transmission unit. If a change occurs in sensor data corresponding to each sensor node stored in a sensor information storage server, the update unit receives the sensor data from the sensor information storage server, and transmits the received sensor data to the corresponding sensor node. The request unit requests the sensor data from the sensor information storage server upon receipt of a sensor data request message from the sensor node. The transmission unit receives the requested sensor data from the sensor information storage server and transmits the received sensor data to the sensor node.

    摘要翻译: 提供了一种在无线传感器网络中的传感器节点上动态地管理传感器模块的装置和方法。 该装置包括更新单元,请求单元和传输单元。 如果在与传感器信息存储服务器中存储的每个传感器节点相对应的传感器数据中发生改变,则更新单元从传感器信息存储服务器接收传感器数据,并将接收到的传感器数据发送到相应的传感器节点。 当从传感器节点接收到传感器数据请求消息时,请求单元从传感器信息存储服务器请求传感器数据。 发送单元从传感器信息存储服务器接收所请求的传感器数据,并将接收到的传感器数据发送到传感器节点。

    Electrical loop antenna with unidirectional and uniform current radiation source
    28.
    发明授权
    Electrical loop antenna with unidirectional and uniform current radiation source 失效
    具有单向均匀电流辐射源的电气环形天线

    公开(公告)号:US07505008B2

    公开(公告)日:2009-03-17

    申请号:US11526374

    申请日:2006-09-25

    IPC分类号: H01Q11/12

    CPC分类号: H01Q11/18 H01Q9/36 H01Q9/40

    摘要: Provided is an antenna for a Radio Frequency Identification (RFID) reader using an electrical loop. It includes an upper metal plate which functions as a radiator; a lower metal plate which is disposed apart from the upper metal plate by a predetermined distance and functions as a radiator; a ground plate disposed apart from the lower metal plate by a predetermined distance; and a feeding probe disposed at the center of the upper and lower metal plates. The antenna can perform radiation parallel to the earth's surface including other directions. Therefore, it is suitable for an RFID reader which recognizes an RFID tag attached in parallel to the earth's surface. The electrical loop antenna can control impedance matching, resonance frequency, antenna gain, and radiation pattern according to the distance between metal plates, size of the metal plates, thickness of a feeding probe, and how the metal plates are arranged.

    摘要翻译: 提供了一种使用电气回路的射频识别(RFID)读取器的天线。 它包括用作散热器的上金属板; 下金属板,其与上金属板隔开预定距离设置并用作散热器; 接地板,与所述下金属板隔开预定距离; 以及设置在上下金属板的中心的供给探针。 天线可以执行与地球表面平行的辐射,包括其他方向。 因此,它适用于识别与地球表面平行附接的RFID标签的RFID读取器。 电气环路天线可以根据金属板之间的距离,金属板的尺寸,馈电探针的厚度以及金属板的布置方式,来控制阻抗匹配,谐振频率,天线增益和辐射图。

    LOCALIZATION APPARATUS FOR RECOGNIZING LOCATION OF NODE IN SENSOR NETWORK AND METHOD THEREOF
    30.
    发明申请
    LOCALIZATION APPARATUS FOR RECOGNIZING LOCATION OF NODE IN SENSOR NETWORK AND METHOD THEREOF 失效
    用于识别传感器网络中节点位置的本地化设备及其方法

    公开(公告)号:US20080080441A1

    公开(公告)日:2008-04-03

    申请号:US11851370

    申请日:2007-09-06

    IPC分类号: H04Q7/24

    CPC分类号: H04W64/00 H04W84/18

    摘要: Provided are a localization apparatus for recognizing a location of a node in a sensor network and a method thereof. The method includes the steps of: a) selecting reference nodes from a plurality of anchor nodes to be used for triangulation; and b) obtaining location information of a target node by performing triangulation using the selected reference node, wherein in the step a), the reference nodes are selected by removing anchor nodes having obstacle factor from a plurality of the anchor nodes where the obstacle factor causes error in a distance measured by the target node.

    摘要翻译: 提供一种用于识别传感器网络中的节点的位置的定位装置及其方法。 该方法包括以下步骤:a)从多个锚节点中选择用于三角测量的参考节点; 以及b)通过使用所选择的参考节点进行三角测量来获得目标节点的位置信息,其中在步骤a)中,通过从多个锚点节点中去除具有障碍因子的锚节点来选择参考节点,其中障碍因素导致 由目标节点测量的距离误差。