公开(公告)号：US20060145926A1

公开(公告)日：2006-07-06

申请号：US11297182

申请日：2005-12-07

申请人： Won-Kyu Choi ,  Nak-Seon Seong ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Won-Kyu Choi ,  Nak-Seon Seong ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H01Q1/38

CPC分类号： H01Q1/2216 ,  H01Q1/22 ,  H01Q9/0421 ,  H01Q21/065 ,  H01Q21/24

摘要： Provided is a dual polarization antenna realized by using four inverted F-type radiators and a Radio Frequency Identification (RFID) reader employing the dual polarization antenna. The dual polarization antenna includes a ground plate and four inverted F-type radiators set up on the ground plate. Currents of the same phase are fed to the first and second inverted F-type radiators each other. Currents of an inverted phase are fed to the third and fourth inverted F-type radiators each other. The four inverted F-type radiators form an angle of 90° with one another. The first and second inverted F-type radiators radiate electric wave of vertical polarization and the third and fourth inverted F-type radiators radiate electric wave of horizontal polarization. Since the dual polarization antenna has excellent orthogonal and isolation characteristics, the antenna can extend a transmission distance between the reader and the tag and improve a communication quality.

摘要翻译： 提供了通过使用四个反相F型辐射器实现的双极化天线和采用双极化天线的射频识别（RFID）读取器。 双极化天线包括接地板和设置在接地板上的四个倒F型散热器。 相同相位的电流彼此馈送到第一和第二倒置的F型散热器。 反相的电流相互馈送到第三和第四倒置的F型散热器。 四个倒F型散热器彼此形成90°的角度。 第一和第二倒F型辐射器辐射垂直极化电波，第三和第四反相F型辐射器辐射水平极化电波。 由于双极化天线具有优异的正交和隔离特性，所以天线可以扩展读取器和标签之间的传输距离，并提高通信质量。

公开(公告)号：US08653946B2

公开(公告)日：2014-02-18

申请号：US11746306

申请日：2007-05-09

申请人： Ji-Hoon Bae ,  Hee-Sook Mo ,  Dong-Han Lee ,  Cheng-Hao Quan ,  Chan-Won Park ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Ji-Hoon Bae ,  Hee-Sook Mo ,  Dong-Han Lee ,  Cheng-Hao Quan ,  Chan-Won Park ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  G06K7/10356 ,  H04W74/08

摘要： Provided is a Radio Frequency Identification (RFID) reader that can minimize collision among RFID readers in an environment where there are a plurality of RFID readers within a limited operating environment by making each RFID reader select a channel at different delay time based on a random value, and a method for controlling operation of the RFID reader. The RFID reader includes a random value generating unit; a reader control unit for adaptively deciding a counter value for generating the random value; an anti-collision unit for preventing collision among a plurality of tags; a reader transmitting unit for generating a reader command message determined by the anti-collision unit, encoding the reader command message, and modulating the reader command message; a reader receiving unit for demodulating and decoding a tag signal; and a channel operation control unit for selecting a channel to be used for the communication with the tag.

摘要翻译： 提供了一种射频识别（RFID）读取器，其可以在有限操作环境中存在多个RFID读取器的环境中最小化RFID读取器之间的冲突，使得每个RFID读取器基于随机值在不同的延迟时间选择信道 以及用于控制RFID读取器的操作的方法。 RFID读取器包括随机值生成单元; 读取器控制单元，用于自适应地确定用于生成随机值的计数器值; 用于防止多个标签之间的碰撞的防碰撞单元; 读取器发送单元，用于生成由反冲突单元确定的读取器命令消息，对读取器命令消息进行编码，以及调制读取器命令消息; 读取器接收单元，用于解调和解码标签信号; 以及频道操作控制单元，用于选择要用于与标签进行通信的频道。

公开(公告)号：US08362879B2

公开(公告)日：2013-01-29

申请号：US12375137

申请日：2007-07-26

申请人： Ji-Hoon Bae ,  Chan-Won Park ,  Dong-Han Lee ,  Hee-Sook Mo ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Ji-Hoon Bae ,  Chan-Won Park ,  Dong-Han Lee ,  Hee-Sook Mo ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04Q5/22 ,  H04L12/413 ,  G08B13/14

CPC分类号： H04B5/0062 ,  G06K7/0008 ,  G06K7/10198 ,  G06K7/10237 ,  G06K19/0723

摘要： Provided are a reader-tag integrated RFID apparatus and a method for controlling the same. The apparatus includes a tag unit for communicating with an external reader, and transmitting a response signal and data corresponding to a signal transmitted from the external reader to the external reader, a reader unit for selecting a channel between other reader and the reader-tag integrated RFID apparatus with a different delay time, and communicating with an external tag using a random value to minimize collision; and a controller for selectively activating one of the tag unit and the reader unit if it necessary.

摘要翻译： 提供了一种读写器集成RFID装置及其控制方法。 该装置包括用于与外部读取器进行通信的标签单元，并将响应信号和对应于从外部读取器发送的信号的数据发送到外部读取器;读取单元，用于选择其他读取器与读取器标签之间的通道集成 具有不同延迟时间的RFID装置，并且使用随机值与外部标签通信以最小化碰撞; 以及如果需要，选择性地激活标签单元和读取器单元中的一个的控制器。

公开(公告)号：US07982584B2

公开(公告)日：2011-07-19

申请号：US11526517

申请日：2006-09-25

申请人： Ji-Hoon Bae ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chan-Won Park ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Ji-Hoon Bae ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chan-Won Park ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04Q5/22

CPC分类号： H04B5/0062 ,  H04B17/318 ,  H04L1/0001 ,  H04L1/0025 ,  H04L1/0057 ,  H04L1/1607

摘要： Provided are a mobile RFID reader and a control method thereof. The mobile RFID reader includes: a reader controller for beginning a reader operation to communicate with a tag in response to a command of a terminal controller of the wireless communication terminal; an anti-collision state machine for controlling collision among a plurality of tags, and transferring the result of communication with the tag to the reader controller; a reader transmitter for generating a reader command message decided at the anti-collision state machine, and coding and modulating the generated reader command message; a reader receiver for demodulating and decoding a tag signal received through an antenna, and reporting a tag response state to the anti-collision state machine; and a channel controller for selecting a channel to use to communicate with a tag in response to a command of the reader controller.

摘要翻译： 提供了一种移动RFID读取器及其控制方法。 移动RFID读取器包括：读取器控制器，用于响应于无线通信终端的终端控制器的命令开始读取器操作以与标签通信; 用于控制多个标签之间的冲突并将与标签的通信结果传送给读取器控制器的防冲突状态机; 读取器发送器，用于生成在反冲突状态机处决定的读取器命令消息，以及对生成的读取器命令消息进行编码和调制; 读取器接收器，用于对通过天线接收的标签信号进行解调和解码，并将标签响应状态报告给防冲突状态机; 以及频道控制器，用于响应于读取器控制器的命令，选择用于与标签通信的频道。

公开(公告)号：US07969913B2

公开(公告)日：2011-06-28

申请号：US11851370

申请日：2007-09-06

申请人： Jong-Jun Park ,  Jong-Oh Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Jong-Jun Park ,  Jong-Oh Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04L12/28

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。

公开(公告)号：US20100277370A1

公开(公告)日：2010-11-04

申请号：US12747506

申请日：2008-11-17

申请人： Juderk Park ,  Sang-Joon Park ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Juderk Park ,  Sang-Joon Park ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H01Q3/00

CPC分类号： H01Q19/32 ,  H01Q3/44

摘要： Provided are an apparatus and method for controlling a radiation direction. The apparatus includes parasitic elements disposed in proximity to the antenna, wherein each of the parasitic elements comprises an antenna; a first portion that is inclined with respect to a prepared ground surface at a first angle and a second portion that is inclined with respect to the first portion at a second angle; a lumped element having a variable reactance, which is disposed on each of the first and second portions; and a determination unit controlling the reactance of the lumped element so as to determine the radiation direction of the antenna. By using the apparatus and the method, the antenna has various radiation directions.

摘要翻译： 提供了一种用于控制辐射方向的装置和方法。 该装置包括设置在天线附近的寄生元件，其中每个寄生元件包括天线; 第一部分，相对于准备好的接地表面以第一角度倾斜;第二部分以第二角度相对于第一部分倾斜; 具有可变电抗的集总元件，其设置在第一和第二部分中的每一个上; 以及确定单元，其控制所述集总元件的电抗，以便确定所述天线的辐射方向。 通过使用该装置和方法，天线具有各种辐射方向。

公开(公告)号：US07821378B2

公开(公告)日：2010-10-26

申请号：US11527998

申请日：2006-09-27

申请人： Ji-Hoon Bae ,  Chan-Won Park ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Ji-Hoon Bae ,  Chan-Won Park ,  Hee-Sook Mo ,  Dong-Han Lee ,  Chenghao Quan ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04Q5/22

CPC分类号： H04B5/02 ,  H04B5/0062

摘要： Provided are a tag signal receiving apparatus that can perform digital Amplitude Shift Keying (ASK) demodulation onto signals received in a tag, decode the demodulated tag signal in synchronization, and acquire tag data in a mobile RFID reader, and a method thereof. The tag signal receiving apparatus includes: a digital demodulating block for performing ASK demodulation onto a digital tag signal received through a reader antenna and converted into a digital tag signal in an analog-to-digital (AD) converter; and a decoding block for detecting edge position information of the demodulated tag signal by performing accumulation and decoding the demodulated tag signal by using the detected edge position information. The digital demodulating block includes a channel level comparator, a phase inverter, a signal converter; and an adder. The decoding block includes an edge information detector, a correlator, and a bit data decider.

摘要翻译： 提供一种标签信号接收装置，其可以对在标签中接收的信号执行数字幅移键控（ASK）解调，同步解码解调的标签信号，并在移动RFID读取器中获取标签数据及其方法。 标签信号接收装置包括：数字解调块，用于对通过读取器天线接收的数字标签信号进行ASK解调，并在模数（AD）转换器中转换为数字标签信号; 以及解码块，用于通过使用检测到的边缘位置信息来对解调的标签信号进行累加和解码来检测解调标签信号的边缘位置信息。 数字解调块包括信道电平比较器，相位逆变器，信号转换器; 和加法器。 解码块包括边缘信息检测器，相关器和位数据判定器。

公开(公告)号：US20100265889A1

公开(公告)日：2010-10-21

申请号：US12808528

申请日：2008-05-22

申请人： Jong-Jun Park ,  Sang-Joon Park ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Jong-Jun Park ,  Sang-Joon Park ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04W40/00

CPC分类号： G01S5/0289 ,  G01S5/18 ,  H04W64/00

摘要： A method for recognizing positions of a plurality of nodes which constitute a wireless sensor network is provided, the method comprises generating sub-maps which represent the relative position to neighbor nodes by taking each of the plurality of nodes as a reference; selecting a sub-map which takes a node with the highest connectivity as a reference from among the plurality of nodes; selecting a sub-map which takes a node with the highest connectivity as a reference, except for the node which becomes a reference of the selected sub-map among the nodes which are included in the selected sub-map; integrating the selected sub-maps into one map by matching the same nodes among the nodes which are commonly included in the selected sub-maps; and thereafter correcting positions of nodes which are included in the integrated map to real positions, whereby integrating order of the sub-map is adjusted using an information of the connectivity of the nodes, and the positions of the nodes which constitute the wireless sensor network is constituted are correctly recognized by correcting the position of the nodes.

摘要翻译： 提供了一种用于识别构成无线传感器网络的多个节点的位置的方法，该方法包括通过以多个节点中的每一个作为参考来生成表示相邻节点的相对位置的子映射; 从多个节点中选择具有最高连通性的节点作为参考的子地图; 选择以具有最高连通性的节点作为参考的子地图，除了在包括在所选择的子地图中的节点之间成为所选择的子地图的参考的节点之外; 通过匹配通常包括在所选子图中的节点之间的相同节点将所选择的子地图整合到一个地图中; 然后将包括在积分图中的节点的位置校正为实际位置，由此使用节点的连通性的信息来调整子地图的积分顺序，构成无线传感器网络的节点的位置为 通过校正节点的位置来正确识别构成的结构。

公开(公告)号：US20100220653A1

公开(公告)日：2010-09-02

申请号：US12682920

申请日：2008-07-30

申请人： So-Young Hwang ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Moon-Seong Kim ,  Eui-Hoon Jeong ,  Young-Cheol Bang

发明人： So-Young Hwang ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Moon-Seong Kim ,  Eui-Hoon Jeong ,  Young-Cheol Bang

IPC分类号： H04W4/00

CPC分类号： H04W40/22 ,  H04L45/24 ,  H04W40/10 ,  H04W40/28 ,  H04W76/10 ,  Y02D70/166 ,  Y02D70/326 ,  Y02D70/39

摘要： A multi-path routing method is provided a multi-path routing method for selecting appropriate multiple paths when information sensed from a source node is transmitted to a sink node in wireless sensor networks. The source node for transmitting the sensed information first transmits a Hello message to the sink node to identify the existence and position of the sink node. The sink node receives the Hello message and then re-transmits the Hello message with respect to all the received Hello messages. Respective middle nodes accumulate distances between the middle nodes while the Hello message is transmitted to the source node through a reverse path of the Hello message, and all the middle nodes maintain a real distance from the sink node. The source node receiving all the Hello messages can rout a plurality of appropriate paths through Hop-by-hop to the sink node by providing respective weights to an energy remaining amount, an appropriate transmission radius and a real distance from the sink node. Accordingly, priorities can be provided to lifetime of the source node, average energy consumption and the shortest path by adjusting the respective weights when routing the plurality of paths. In addition, appropriate paths can be routed considering the transmission success rate of a path, and a load balancing effect can be obtained using path cost.

摘要翻译： 提供多路径路由方法，用于当从源节点感知的信息被发送到无线传感器网络中的汇聚节点时，选择适当的多个路径的多路径路由方法。 用于发送感测信息的源节点首先向宿节点发送一个Hello消息，以识别宿节点的存在和位置。 汇聚节点接收到Hello消息，然后针对所有收到的Hello消息重新发送Hello消息。 各个中间节点累积中间节点之间的距离，而Hello消息通过Hello消息的反向路径发送到源节点，并且所有中间节点与sink节点保持实际距离。 接收所有Hello消息的源节点可以通过向能量节点提供相应的权重，从能量剩余量，适当的传输半径以及从宿节点的实际距离，逐跳跳过多个适当的路径。 因此，当路由多个路径时，可以通过调整相应权重来提供源节点的寿命，平均能量消耗和最短路径的优先级。 此外，考虑到路径的传输成功率，可以路由适当的路径，并且可以使用路径开销获得负载平衡效果。

公开(公告)号：US20100207737A1

公开(公告)日：2010-08-19

申请号：US12682319

申请日：2008-10-13

申请人： Chan-Won Park ,  Nak-Seon Seong ,  Josef Preishuber-Pfluegl ,  David Tschische ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Chan-Won Park ,  Nak-Seon Seong ,  Josef Preishuber-Pfluegl ,  David Tschische ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G06K17/00

CPC分类号： H04W74/0833 ,  G06K7/0008 ,  G06K7/10475 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/082 ,  H04W74/006

摘要： A time division multiple access (TDMA) control method used by a mobile radio frequency identifier (RFID) reader through a mobile phone base station and a mobile RFID reader are provided. Each mobile RFID reader occupies a frequency channel during a time slot allocated through a mobile communication base station, thereby avoiding interference between readers.

摘要翻译： 提供了通过移动电话基站和移动RFID读取器由移动射频识别器（RFID）读取器使用的时分多址（TDMA）控制方法。 每个移动RFID读取器在通过移动通信基站分配的时隙期间占用频道，从而避免读取器之间的干扰。