METHOD AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK
    62.
    发明申请
    METHOD AND APPARATUS FOR ASSIGNING CHANNEL IN AD-HOC NETWORK 审中-公开
    用于在AD-HOC网络中分配通道的方法和装置

    公开(公告)号:US20110164573A1

    公开(公告)日:2011-07-07

    申请号:US12596832

    申请日:2007-10-24

    IPC分类号: H04W72/04

    摘要: The present invention provides a method and apparatus for assigning a channel in an ad-hoc network, which can minimize beacon collision in the ad-hoc network and prevent channel overlapping or collision, and thus a channel can be efficiently assigned. The method of assigning a channel including: obtaining join order information which is information on the order in which a first node has been joined to a second node, which is a parent node, and level information of the second node in an ad-hoc network; determining a reference value for setting a channel that is to be assigned to the first node based on an address value of the first node, which is determined based on the join order information and the level information, a level value of the first node, a channel value of the second node, which is determined based on the level information, and the join order information; and determining a channel value of the first node by dividing the reference value by the maximum number of usable channels in the ad-hoc network.

    摘要翻译: 本发明提供了一种用于在自组织网络中分配信道的方法和装置,其可以最小化自组织网络中的信标冲突并且防止信道重叠或冲突,从而可以有效地分配信道。 分配频道的方法,包括:获取作为第一节点已加入到第二节点(其为父节点)的顺序的信息的连接顺序信息和自组织网络中的第二节点的级别信息 ; 基于所述第一节点的基于所述连接顺序信息和所述级别信息确定的地址值,确定用于设置要分配给所述第一节点的信道的参考值,所述第一节点的级别值, 基于级别信息确定的第二节点的信道值和连接顺序信息; 以及通过将所述参考值除以所述自组织网络中的可用信道的最大数目来确定所述第一节点的信道值。

    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system
    63.
    发明授权
    Method and apparatus for sharing portable terminal in CDMA system and mobile RFID system 失效
    用于在CDMA系统和移动RFID系统中共享便携式终端的方法和装置

    公开(公告)号:US07933577B2

    公开(公告)日:2011-04-26

    申请号:US11600605

    申请日:2006-11-16

    IPC分类号: H04B1/06 G08B13/14

    CPC分类号: G06K7/0008

    摘要: Provided are a method and apparatus for sharing a portable terminal in a Code Division Multiple Access (CDMA) and a mobile Radio Frequency Identification (RFID) system. The portable terminal includes: a CDMA mobile station system for performing CDMA communication; a mobile RFID system for performing a passive RFID reader function; a switching unit for switching an antenna to any one between the CDMA mobile station system and the mobile RFID system; and a control unit for controlling the switching unit to connect the antenna to the CDMA mobile station system when the portable terminal transmits/receives a signal to/from the base station, or connect the antenna to the mobile RFID system when the portable terminal transmits/receives a signal to/from an RFID tag.

    摘要翻译: 提供了一种用于在码分多址(CDMA)和移动射频识别(RFID)系统中共享便携式终端的方法和装置。 便携式终端包括:用于执行CDMA通信的CDMA移动站系统; 用于执行无源RFID读取器功能的移动RFID系统; 用于将天线切换到CDMA移动站系统和移动RFID系统之间的任何一个的切换单元; 以及控制单元,用于当便携式终端向/从基站发送/接收信号时控制切换单元将天线连接到CDMA移动站系统,或者当便携式终端发送/接收来自基站的天线时将天线连接到移动RFID系统, 从RFID标签接收信号。

    NODE SYNCHRONIZATION SYSTEM FOR LOW-POWER IN SENSOR NETWORK AND METHOD THEREOF
    65.
    发明申请
    NODE SYNCHRONIZATION SYSTEM FOR LOW-POWER IN SENSOR NETWORK AND METHOD THEREOF 审中-公开
    低功率传感器网络的节点同步系统及其方法

    公开(公告)号:US20100008275A1

    公开(公告)日:2010-01-14

    申请号:US12443646

    申请日:2007-06-01

    IPC分类号: G08C17/00 H04J3/06

    摘要: Provided are a node synchronization system for low-power in a sensor network and a method thereof. The node synchronization system includes: a network transmitting means for transmitting information on a synchronization time difference to the sensing data collecting means and transmitting sensing data to a network; the sensing data collecting means for receiving synchronization time information from the network transmitting means, being synchronized with the network transmitting means, collecting the sensing data from a sensing means, and transmitting the sensing data to the network transmitting means; and the sensing means for receiving synchronization time information from the sensing data collecting means, being synchronized with the sensing data collecting means, sensing a sensing peripheral environment information, and transmitting the sensing data to the sensing data collecting means.

    摘要翻译: 提供了一种用于传感器网络中的低功率的节点同步系统及其方法。 节点同步系统包括:网络发送装置,用于向感测数据采集装置发送关于同步时间差的信息,并将感测数据发送到网络; 感测数据收集装置,用于从网络发送装置接收与网络发送装置同步的同步时间信息,从感测装置收集感测数据,并将感测数据发送到网络发送装置; 以及感测装置,用于从感测数据采集装置接收与感测数据采集装置同步的同步时间信息,感测感测周边环境信息,并将感测数据传送到感测数据采集装置。

    Method for Managing Dormant Nodes in Wireless Sensor Network
    66.
    发明申请
    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:US20090285140A1

    公开(公告)日:2009-11-19

    申请号:US12085784

    申请日:2006-11-29

    IPC分类号: G08C17/00

    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中的休眠对象节点; 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。

    RFID system and method for protecting information
    67.
    发明授权
    RFID system and method for protecting information 有权
    RFID系统和信息保护方法

    公开(公告)号:US07592917B2

    公开(公告)日:2009-09-22

    申请号:US11592420

    申请日:2006-11-03

    IPC分类号: G08B13/14

    摘要: Provided is a Radio Frequency identification (RFID) system and method for protecting information. The system includes: an identification information storing unit which includes identification information and generates an interrupt/interference signal to block access without permission; an RFID calling unit which reads information of the identification information storing unit by loading a basic protocol and a security protocol for recognizing the identification information storing unit; and a storing unit which registers and stores information required for authentication between the RFID calling unit and the identification information storing unit, and information required for access control.

    摘要翻译: 提供了一种用于保护信息的射频识别(RFID)系统和方法。 该系统包括:识别信息存储单元,其包括识别信息,并产生中断/干扰信号,以在未经许可的情况下阻止访问; RFID呼叫单元,其通过加载基本协议和用于识别识别信息存储单元的安全协议来读取识别信息存储单元的信息; 以及存储单元,其登记并存储RFID呼叫单元与识别信息存储单元之间的认证所需的信息,以及访问控制所需的信息。

    Method and Apparatus For Transmitter Locating Using a Single Receiver
    68.
    发明申请
    Method and Apparatus For Transmitter Locating Using a Single Receiver 审中-公开
    使用单个接收器定位发射机的方法和设备

    公开(公告)号:US20080316105A1

    公开(公告)日:2008-12-25

    申请号:US12097406

    申请日:2006-12-12

    IPC分类号: G01S5/00

    CPC分类号: G01S5/12

    摘要: Provided is a method and apparatus for locating a transmitter. The apparatus for locating a transmitter, including: an antenna having an antenna array for receiving first and second frequency signals transmitted from the transmitter and measuring an angle of the transmitter; a range of transmission (ROT) calculating unit for calculating the range of transmission of the transmitter based on phase difference between the first and second frequency signals; an angle of arrival (AoA) calculating unit for calculating the angle of the transmitter based on phase difference of common frequency signals received in the antenna; and a transmission location determining unit for determining the location of the transmitter based on the range of transmission and the angle of arrival of the transmitter.

    摘要翻译: 提供了一种用于定位发射机的方法和装置。 一种用于定位发射机的装置,包括:具有天线阵列的天线,用于接收从发射机发送的第一和第二频率信号,并测量发射机的角度; 传输范围(ROT)计算单元,用于基于第一和第二频率信号之间的相位差计算发射机的发射范围; 一个到达角度(AoA)计算单元,用于基于在天线中接收的公共频率信号的相位差来计算发射机的角度; 以及发送位置确定单元,用于基于发送的范围和发送器的到达角度确定发送器的位置。

    PIFA, RFID tag using the same and antenna impedance adjusting method thereof
    69.
    发明授权
    PIFA, RFID tag using the same and antenna impedance adjusting method thereof 有权
    PIFA,使用其的RFID标签和天线阻抗调整方法

    公开(公告)号:US07414583B2

    公开(公告)日:2008-08-19

    申请号:US11297517

    申请日:2005-12-07

    IPC分类号: H01Q1/38 H01Q1/24

    摘要: Provided are a Planar Inverted-F Antenna (PIFA), a Radio Frequency Identification (RFID) tag using the PIFA. The present invention miniaturizes the antenna by using a meander line extended from a radiating edge of a radiation antenna and adjusting a resonant frequency of the antenna, and it performs impedance matching by adjusting capacitive reactance of the antenna. Also, it can perform impedance matching by using a stub having a slot formed therein and adjusting inductive reactance and capacitive reactance of the antenna. The present invention miniaturizes the antenna by using a plurality of shorting plates for shorting the radiation patch from a grounding surface and adjusting the resonant frequency of the antenna. The present invention also provides an inexpensive PIFA antenna with an excellent radiation efficiency by forming the radiation patch in the form of metal sheet in the antenna and floating the radiation patch in the air.

    摘要翻译: 提供了使用PIFA的平面倒F天线(PIFA),射频识别(RFID)标签。 本发明通过使用从辐射天线的辐射边缘延伸的曲折线并调整天线的谐振频率来使天线小型化,并且通过调整天线的电容性电抗来执行阻抗匹配。 此外,它可以通过使用其中形成有槽的短截线来进行阻抗匹配,并且调整天线的感抗和电抗。 本发明通过使用多个短路板来使天线小型化,从而使接地面短路放电片并调节天线的谐振频率。 本发明还通过在天线中形成金属片形式的辐射贴片并且将辐射贴片浮在空中来提供具有优异辐射效率的便宜的PIFA天线。

    METHOD FOR IDENTIFYING MULTIPLE MOVING TAGS WITH MULTIPLE READERS
    70.
    发明申请
    METHOD FOR IDENTIFYING MULTIPLE MOVING TAGS WITH MULTIPLE READERS 失效
    用于识别多个读取器的多个移动标签的方法

    公开(公告)号:US20080024275A1

    公开(公告)日:2008-01-31

    申请号:US11828703

    申请日:2007-07-26

    IPC分类号: H04B7/00

    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。