公开(公告)号：US07675403B2

公开(公告)日：2010-03-09

申请号：US11497749

申请日：2006-08-02

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

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

IPC分类号： H04Q5/22

CPC分类号： G06K7/0008 ,  H04W8/005 ,  H04W74/04 ,  H04W74/08

摘要： Provided is a method for estimating the number of tags in a slotted Aloha-based RFID system, which can estimate the number of tags through a new statistical average scheme using the number of slots, the measured number of empty slots, and the measured number of ID slots. The estimating method includes the steps of: a) setting the number (N) of slots, the measured number (c0) of empty slots, and the measured number (c1) of ID slots as parameters; and estimating the number (n) of the tags by substituting the set values into n=(N−1)/(c0/c1).

摘要翻译： 提供了一种用于估计基于时隙的基于Aloha的RFID系统中的标签的数量的方法，其可以使用新的统计平均方案来估计标签的数量，该方案使用时隙数，所测量的空时隙数， ID插槽。 该估计方法包括以下步骤：a）将时隙数（N），空时隙的测量次数（c0）和ID时隙的测量次数（c1）设置为参数; 并且通过将设定值代入n =（N-1）/（c0 / c1）来估计标签的数量（n）。

公开(公告)号：US20070125837A1

公开(公告)日：2007-06-07

申请号：US11607784

申请日：2006-11-29

申请人： Chan-Won Park ,  Mal-Hee Kim ,  Myung-Hee Son ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Joo-Moon Lee ,  Gene-Hee Yoon ,  Taejeen Shin

发明人： Chan-Won Park ,  Mal-Hee Kim ,  Myung-Hee Son ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Joo-Moon Lee ,  Gene-Hee Yoon ,  Taejeen Shin

IPC分类号： G06F17/00 ,  H04Q5/22 ,  H05K11/00 ,  G08B13/14

CPC分类号： H04W88/06 ,  H04L67/18 ,  H04M1/663 ,  H04M1/7253

摘要： Provided are a method for processing reception calls during mobile RFID service processing, and a wireless terminal employing the method. The terminal provides mobile RFID service by receiving tag information from the RFID reader, requesting the object directory server for CS position information based on the tag information, requesting service contents based on the tag information and CS position information. The present invention prevents collision between reception call processing and mobile RFID service processing in the wireless terminal by processing reception call appropriately to each duration of mobile RFID service processing. For example, when a call is received before read command is transmitted to the RFID reader, the RFID reader is turned off and the reception call is processed. When a call is received before CS position information is requested, the CS position information is requested after the reception call is processed.

摘要翻译： 提供了一种在移动RFID服务处理期间处理接收呼叫的方法，以及采用该方法的无线终端。 终端通过从RFID读取器接收标签信息来提供移动RFID服务，基于标签信息向目标服务器请求CS位置信息，基于标签信息和CS位置信息请求服务内容。 本发明通过适当地处理移动RFID服务处理的每个持续时间来处理接收呼叫来防止无线终端中的接收呼叫处理和移动RFID服务处理之间的冲突。 例如，当在读取命令被发送到RFID读取器之前接收到呼叫时，RFID读取器被关闭并且处理接收呼叫。 在请求CS位置信息之前接收到呼叫时，在处理接收呼叫之后请求CS位置信息。

公开(公告)号：US20070069852A1

公开(公告)日：2007-03-29

申请号：US11525393

申请日：2006-09-22

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

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

IPC分类号： G05B19/00

CPC分类号： H04L9/3271 ,  H04L9/3226 ,  H04L9/3236 ,  H04L2209/805

摘要： Provided is a method for securing information between a Radio Frequency Identification (RFID) reader and tag, and an RFID Reader and tag using the same. The method includes the steps of: a) requesting an access password of the RFID tag in the RFID reader; b) extracting a key value mapped to the access password transmitted from the RFID tag and transmitting the key value to the RFID tag in the RFID reader; c) outputting a hash function value from the key value transmitted from the RFID reader in the RFID tag; and d) determining whether to allow the RFID reader to access to an RFID tag memory based on whether the outputted hash function value is the same as the access password of the RFID tag.

摘要翻译： 提供了一种用于确保射频识别（RFID）读取器和标签之间的信息以及使用其的RFID读取器和标签的方法。 该方法包括以下步骤：a）请求RFID读取器中RFID标签的访问密码; b）提取映射到从RFID标签发送的访问密码的密钥值，并将该密钥值发送到RFID读取器中的RFID标签; c）从RFID标签中从RFID读取器发送的键值输出散列函数值; 以及d）基于输出的散列函数值是否与RFID标签的访问密码相同，确定是否允许RFID读取器访问RFID标签存储器。

公开(公告)号：US20100308972A1

公开(公告)日：2010-12-09

申请号：US12867148

申请日：2009-02-12

申请人： Hyunseok Kim ,  Nak-Seon Seong ,  Jae-Young Jung ,  Heyung-Sub Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Josef Preishuber-Pfluegl ,  David Tschische

发明人： Hyunseok Kim ,  Nak-Seon Seong ,  Jae-Young Jung ,  Heyung-Sub Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Josef Preishuber-Pfluegl ,  David Tschische

IPC分类号： G06K7/01

CPC分类号： G06K7/0008 ,  G06K7/10297 ,  G06K19/0723

摘要： Provided is a communication method for radio frequency identification (RFID). In order to transmit a command message with respect to an RFID tag, an RFID reader generates a command message comprising a command code indicating a type of command to be delivered to the RFID tag, a response format having one or more bits for indicating a type of additional data to be added to a response message to be received from the RFID tag, and an identifier identifying the RFID tag; and transmits the command message to the RFID tag, thereby allowing the RFID tag to immediately transmit the additional data via the response message in response to the command message.

摘要翻译： 提供了一种用于射频识别（RFID）的通信方法。 为了发送关于RFID标签的命令消息，RFID读取器产生指令消息，该命令消息包括指示要发送到RFID标签的命令的类型的命令代码，具有用于指示类型的一个或多个比特的响应格式 将要添加到要从RFID标签接收的响应消息的附加数据和识别RFID标签的标识符; 并将命令消息发送到RFID标签，从而允许RFID标签响应于命令消息经由响应消息立即发送附加数据。

公开(公告)号：US08254342B2

公开(公告)日：2012-08-28

申请号：US12517556

申请日：2007-10-24

申请人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04J3/00

CPC分类号： H04W72/1278 ,  H04L45/04 ,  H04W40/00 ,  H04W48/16 ,  H04W72/12 ,  H04W84/18

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。

公开(公告)号：US08040280B2

公开(公告)日：2011-10-18

申请号：US12096780

申请日：2006-12-08

申请人： Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G01S5/04

CPC分类号： G01S5/10

摘要： Provided is an apparatus and method for computing the location of a radio beacon by using received signal strength (RSS) and multiple frequencies. The apparatus and method of the present invention computes the location of a radio beacon without limitation in distance by using multiple frequencies and received signal strength to resolve the problem of phase ambiguity. A radio beacon location computing system includes a plurality of base stations configured to receive signals of multiple frequencies transmitted from the radio beacon, and detect and output phase differences and received signal strength; and a location computing server configured to receive the phase differences and the received signal strength outputted from the respective base stations, acquire calculation distances based on the phase differences, remove phase ambiguity from the calculation distances based on the received signal strength, and compute the location of the radio beacon.

摘要翻译： 提供了一种通过使用接收信号强度（RSS）和多个频率来计算无线电信标的位置的装置和方法。 本发明的装置和方法通过使用多个频率和接收信号强度来计算无线电信标的位置而不限制距离，以解决相位模糊问题。 无线电信标位置计算系统包括：多个基站，被配置为接收从无线电信标发送的多个频率的信号，并检测和输出相位差和接收信号强度; 以及位置计算服务器，被配置为接收从各个基站输出的相位差和接收信号强度，基于相位差获取计算距离，基于接收到的信号强度从计算距离中消除相位模糊度，并且计算位置 的无线电信标。

公开(公告)号：US20110131320A1

公开(公告)日：2011-06-02

申请号：US12808432

申请日：2008-11-17

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

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

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。

公开(公告)号：US20080316104A1

公开(公告)日：2008-12-25

申请号：US12096780

申请日：2006-12-08

申请人： Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Nak-Seon Seong ,  Choon-Sik Lim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04B7/24

CPC分类号： G01S5/10

摘要： Provided is an apparatus and method for computing the location of a radio beacon by using received signal strength (RSS) and multiple frequencies. The apparatus and method of the present invention computes the location of a radio beacon without limitation in distance by using multiple frequencies and received signal strength to resolve the problem of phase ambiguity. A radio beacon location computing system includes a plurality of base stations configured to receive signals of multiple frequencies transmitted from the radio beacon, and detect and output phase differences and received signal strength; and a location computing server configured to receive the phase differences and the received signal strength outputted from the respective base stations, acquire calculation distances based on the phase differences, remove phase ambiguity from the calculation distances based on the received signal strength, and compute the location of the radio beacon.

摘要翻译： 提供了一种通过使用接收信号强度（RSS）和多个频率来计算无线电信标的位置的装置和方法。 本发明的装置和方法通过使用多个频率和接收信号强度来计算无线电信标的位置而不限制距离，以解决相位模糊问题。 无线电信标位置计算系统包括：多个基站，被配置为接收从无线电信标发送的多个频率的信号，并检测和输出相位差和接收信号强度; 以及位置计算服务器，被配置为接收从各个基站输出的相位差和接收信号强度，基于相位差获取计算距离，基于接收到的信号强度从计算距离中消除相位模糊度，并且计算位置 的无线电信标。

公开(公告)号：US07427955B2

公开(公告)日：2008-09-23

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：US20080080441A1

公开(公告)日：2008-04-03

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： 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。