公开(公告)号：US07982584B2

公开(公告)日：2011-07-19

申请号：US11526517

申请日：2006-09-25

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

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

IPC: H04Q5/22

CPC classification number: H04B5/0062 ,  H04B17/318 ,  H04L1/0001 ,  H04L1/0025 ,  H04L1/0057 ,  H04L1/1607

Abstract: 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.

Abstract translation: 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

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

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

IPC: H04L12/28

CPC classification number: H04W64/00 ,  H04W84/18

Abstract: 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.

Abstract translation: 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：US20110134756A1

公开(公告)日：2011-06-09

申请号：US12824602

申请日：2010-06-28

Applicant: Hyeon PARK ,  Sang Joon Park ,  Cheol Sig Pyo

Inventor： Hyeon PARK ,  Sang Joon Park ,  Cheol Sig Pyo

IPC: H04L12/26

CPC classification number: H04L43/0894 ,  H04L45/12 ,  H04L45/302 ,  H04L45/48 ,  H04W40/02

Abstract: Provided is an operating method of sensor network. The operating method detects upper network nodes of a specific network node. The operating method detects link costs between the specific network node and the detected upper network nodes, respectively. The operating method detects a transmission and reception rate for the detected upper network nodes of the specific network node. The operating method selects one of the detected upper network nodes as a parent node of the specific network node, based on the detected link costs and the detected transmission and reception rate.

Abstract translation: 提供了传感器网络的操作方法。 操作方法检测特定网络节点的上层网络节点。 操作方法分别检测特定网络节点和检测到的上层网络节点之间的链路成本。 操作方法检测特定网络节点检测到的上层网络节点的发送和接收速率。 基于检测到的链路成本和检测到的发送和接收速率，操作方法选择检测到的上层网络节点之一作为特定网络节点的父节点。

公开(公告)号：US20110130849A1

公开(公告)日：2011-06-02

申请号：US12857101

申请日：2010-08-16

Applicant: Sun-Jin Kim ,  Junghae Seo ,  Kwang Soo Kim ,  Cheol Sig Pyo ,  Jong-Arm Jun ,  Jong-Suk Chae

Inventor： Sun-Jin Kim ,  Junghae Seo ,  Kwang Soo Kim ,  Cheol Sig Pyo ,  Jong-Arm Jun ,  Jong-Suk Chae

IPC: G05B11/01

CPC classification number: G08B25/08

Abstract: A sensor actuator node includes a sensor unit for generating sensing information on circumstantial changes; a communications unit; a countermeasure information generation unit for generating countermeasure information to the circumstantial changes; and a drive unit for driving one or more actuators. When the sensor actuator node acts as a host node, the sensing information becomes main sensing information, the countermeasure information generation unit generates the countermeasure information based on the main sensing information and selectively transmits the countermeasure information to the adjacent sensor actuator nodes via the communications unit, and the drive unit drives the actuator based on the countermeasure information. When the sensor actuator node acts as a non-host node, the sensing information becomes auxiliary sensing information, and the drive unit drives the actuator based on the countermeasure information selectively transmitted thereto by the host node.

Abstract translation: 传感器致动器节点包括用于产生关于环境变化的感测信息的传感器单元; 通信单元; 对策信息生成单元，用于产生对环境变化的对策信息; 以及用于驱动一个或多个致动器的驱动单元。 当传感器致动器节点作为主机节点时，感测信息变为主感测信息，对策信息生成单元基于主感测信息产生对策信息，并且经由通信单元选择性地将对策信息发送到相邻的传感器致动器节点 ，并且驱动单元基于对策信息驱动致动器。 当传感器致动器节点用作非主机节点时，感测信息成为辅助感测信息，并且驱动单元基于由主机节点有选择地发送到其的对策信息来驱动致动器。

公开(公告)号：US07940183B2

公开(公告)日：2011-05-10

申请号：US12126005

申请日：2008-05-23

Applicant: Jeong Seok Kim ,  Won Kyu Choi ,  Gil Young Choi ,  Cheol Sig Pyo ,  Jong-suk Chae

Inventor： Jeong Seok Kim ,  Won Kyu Choi ,  Gil Young Choi ,  Cheol Sig Pyo ,  Jong-suk Chae

IPC: G08B13/14 ,  H01Q1/38

CPC classification number: G06K19/07749 ,  G06K19/07786 ,  H01Q1/2208 ,  H01Q1/2225 ,  H01Q1/38 ,  H01Q9/285

Abstract: The present invention relates to an antenna for an RFID tag chip. The antenna includes a dielectric material, a radiating patch that scatters a signal from the RFID tag chip for transmitting the scattered signal, and microstrip lines having a terminal for the RFID tag chip. Accordingly, a small antenna that can be attached to metal can be realized.

Abstract translation: 本发明涉及RFID标签芯片的天线。 天线包括介电材料，散射来自RFID标签芯片的信号以发射散射信号的辐射贴片，以及具有用于RFID标签芯片的端子的微带线。 因此，能够实现能够附着于金属的小型天线。

公开(公告)号：US20110051645A1

公开(公告)日：2011-03-03

申请号：US12874856

申请日：2010-09-02

Applicant: Seung Ki HONG ,  Jong Arm JUN ,  Cheol Sig PYO ,  Sang Hun LEE ,  Lynn CHOI

Inventor： Seung Ki HONG ,  Jong Arm JUN ,  Cheol Sig PYO ,  Sang Hun LEE ,  Lynn CHOI

IPC: G08C17/00

CPC classification number: H04W40/005 ,  H04L45/48 ,  H04W76/28 ,  H04W84/18 ,  Y02D70/00

Abstract: Provided are a communication method and system for sensor network. In reporting event occurrence in a real-time sensor network application, a cycle time is divided into an event announcement period and a data transmission period to provide real-time transmission performance and energy efficiency. Each of the periods is again divided into the number of slots equal to the maximum depth of a network. Respective nodes sequentially operate according to their depths in a routing tree during the event announcement period to receive the signal transmitted from the lower node. To remove sleep delay, a slot next to the signal reception slot becomes a signal transmission slot. A node sensed an event transmits a signal informing event occurrence during its signal transmission slot, and this signal includes only the address of the transmission node. When a signal does not exist in the event announcement period, no traffic occurs in the data transmission period and the upper nodes maintain a sleep state. When a signal is transmitted during the event announcement period, nodes transmitting/receiving a corresponding signal operate during the data transmission period to transfer data packets.

Abstract translation: 提供了一种用于传感器网络的通信方法和系统。 在报告实时传感器网络应用中的事件发生时，将周期时间分为事件通知周期和数据传输周期，以提供实时传输性能和能量效率。 每个周期再次被划分为等于网络的最大深度的时隙数。 各个节点在事件发布周期期间根据路由树中的深度顺序地操作以接收从下层节点发送的信号。 为了消除睡眠延迟，信号接收时隙旁边的时隙成为信号传输时隙。 感测事件的节点在其信号传输时隙期间发送通知事件发生的信号，并且该信号仅包括传输节点的地址。 当事件通知期间不存在信号时，在数据发送期间不发生业务，上层节点保持睡眠状态。 当在事件发布期间发送信号时，发送/接收相应信号的节点在数据传输周期期间运行以传送数据分组。

公开(公告)号：US07893836B2

公开(公告)日：2011-02-22

申请号：US12039476

申请日：2008-02-28

Applicant: Byunghyun Chung ,  Hee Sook Mo ,  Nae-Soo Kim ,  Cheol Sig Pyo

Inventor： Byunghyun Chung ,  Hee Sook Mo ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC: G08B13/14

CPC classification number: G06K7/0008 ,  G06K7/10069 ,  G06K7/10356 ,  H04Q2213/13095

Abstract: Provided are a method and an apparatus for avoiding a collision between each of radio frequency identification (RFID) readers. The method and the apparatus divide the RFID readers into first RFID readers and second RFID readers according to a maximum output level, and set first frequency channels for the first RFID readers and second frequency channels for the second RFID readers, set frequency channel disposition information for each of the first RFID readers, generate a channel holding signal in each of the first frequency channels, and if a frequency channel usage request or a frequency channel return request is received from one of the first RFID readers, stop generating or generate the channel holding signal in a frequency channel related to the frequency channel usage or return request. In this manner, the collision between each of the RFID readers is avoided by preventing the second RFID readers from using the first frequency channels for the first RFID readers. Also, the method and the apparatus can efficiently manage frequency channels by controlling a ratio of the number of the first frequency channels to be used by the first RFID readers and the number of the second frequency channels to be used by the second RFID readers, according to usage frequency.

Abstract translation: 提供了一种用于避免每个射频识别（RFID）读取器之间的冲突的方法和装置。 该方法和设备根据最大输出电平将RFID阅读器划分为第一RFID阅读器和第二RFID阅读器，并为第一RFID读取器和第二个RFID读取器的第二个频道设置第一个频道，设置频道信息处理信息 每个第一RFID读取器在每个第一频道中产生频道保持信号，并且如果从第一RFID读取器之一接收到频道使用请求或频道返回请求，则停止产生或生成频道保持 在与频道使用或返回请求相关的频道中的信号。 以这种方式，通过防止第二RFID读取器对第一RFID读取器使用第一频率信道来避免每个RFID读取器之间的冲突。 此外，该方法和装置可以通过控制由第一RFID读取器使用的第一频道的数量与第二RFID读取器使用的第二频道的数量的比率来有效地管理频道，根据 到使用频率。

公开(公告)号：US20100277370A1

公开(公告)日：2010-11-04

申请号：US12747506

申请日：2008-11-17

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

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

IPC: H01Q3/00

CPC classification number: H01Q19/32 ,  H01Q3/44

Abstract: 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.

Abstract translation: 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：US07825791B2

公开(公告)日：2010-11-02

申请号：US11595456

申请日：2006-11-09

Applicant: Se-Han Kim ,  Yoon-Mee Doh ,  Cheol-Sig Pyo

Inventor： Se-Han Kim ,  Yoon-Mee Doh ,  Cheol-Sig Pyo

IPC: G08B23/00 ,  G08B1/08 ,  G08B9/00

CPC classification number: G08B25/009 ,  G08B25/10 ,  G08B27/005

Abstract: Provided is a distributional alert system using a ubiquitous sensor network (USN). When a disaster occurs, the distributional alert system detects it in a sensor node, informs the area where the disaster occurs of danger through an actuator, such as siren, or informs a management system of the danger through a wired/wireless network. The distributional alert system includes: a first sensor node for generating sense data by sensing surroundings with a sensor therein, determining whether a disaster occurs by analyzing the sense data, and creating and transmitting emergency data based on the determination result, while forming a sensor network; and an alerting node for receiving emergency data from the first sensor node on the sensor network, and outputting disaster circumstantial information to a sensor field of the sensor network upon receipt of the emergency data.

Abstract translation: 提供了使用普遍存在的传感器网络（USN）的分布式警报系统。 当发生灾难时，分布式警报系统会在传感器节点中检测到故障，通过执行器（如警笛）告知灾害发生的危险区域，或通过有线/无线网络通知管理系统危险。 所述分配警报系统包括：第一传感器节点，用于通过在其中传感器感测环境来产生感测数据;通过分析感测数据来确定是否发生灾难;以及在形成传感器网络的同时，基于确定结果创建并发送紧急数据 ; 以及用于从所述传感器网络上的所述第一传感器节点接收紧急数据的报警节点，并且在接收到所述紧急数据时将所述灾害环境信息输出到所述传感器网络的传感器场。

公开(公告)号：US07821378B2

公开(公告)日：2010-10-26

申请号：US11527998

申请日：2006-09-27

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

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

IPC: H04Q5/22

CPC classification number: H04B5/02 ,  H04B5/0062

Abstract: 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.

Abstract translation: 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。