公开(公告)号：US20100118737A1

公开(公告)日：2010-05-13

申请号：US12548979

申请日：2009-08-27

申请人： Se Han KIM ,  Nae Soo Kim ,  Cheol Sig Pyo ,  Jong Suk Chae

发明人： Se Han KIM ,  Nae Soo Kim ,  Cheol Sig Pyo ,  Jong Suk Chae

IPC分类号： H04L12/28 ,  H04L12/413

CPC分类号： H04L12/4035 ,  H04W16/00 ,  H04W28/06 ,  H04W40/246 ,  H04W48/08 ,  H04W84/10 ,  H04W84/18

摘要： Provided are a method and apparatus for using a synchronous sensor network medium access control (MAC) protocol such as a ZigBee or IEEE 802.15.4 low-rate wireless personal area network (WPAN). Also provided are a method and apparatus for constructing a ubiquitous sensor network (USN) of which a life is increased by using power beacons and reducing the number of unnecessary control packets (beacon packets), thereby reducing an initialization time between nodes and preventing beacon collision. According to the present invention, a beacon packet channel having a large output power and a data channel of which a transmission range is restricted by reducing an output power to be less than that of the beacon packet channel, may be simultaneously used.

摘要翻译： 提供了一种使用诸如ZigBee或IEEE 802.15.4低速率无线个域网（WPAN）的同步传感器网络介质访问控制（MAC）协议的方法和装置。 还提供了一种用于构建普遍存在的传感器网络（USN）的方法和装置，其通过使用电力信标增加寿命并减少不必要的控制分组（信标分组）的数量，从而减少节点之间的初始化时间并防止信标碰撞 。 根据本发明，可以同时使用具有大输出功率的信标分组信道和通过将输出功率降低到小于信标分组信道的输出功率来限制传输范围的数据信道。

公开(公告)号：US20090161553A1

公开(公告)日：2009-06-25

申请号：US12338458

申请日：2008-12-18

申请人： Se Han KIM ,  Kyeseon Lee ,  Nae Soo Kim ,  Cheol Sig Pyo

发明人： Se Han KIM ,  Kyeseon Lee ,  Nae Soo Kim ,  Cheol Sig Pyo

IPC分类号： H04L12/26

CPC分类号： H04L41/0213 ,  H04L41/22 ,  H04L43/18 ,  H04L67/12 ,  H04L69/22 ,  H04W84/18

摘要： An apparatus for analyzing a USN protocol includes a packet analyzer and a protocol analyzer. The packet analyzer collects packets communicated between USN sensor nodes through at least one or more channels. The protocol analyzer processes/displays the collected packets using an XML schema defined according to the USN protocol. Thus, the USN protocol analyzing apparatus can decode/encode packets collected through a plurality of channels.

摘要翻译： 用于分析USN协议的装置包括分组分析器和协议分析器。 分组分析器通过至少一个或多个信道收集在USN传感器节点之间传送的分组。 协议分析器使用根据USN协议定义的XML模式来处理/显示收集的数据包。 因此，USN协议分析装置可以解码/编码通过多个信道收集的分组。

公开(公告)号：US07263142B2

公开(公告)日：2007-08-28

申请号：US10722103

申请日：2003-11-24

申请人： PanSoo Kim ,  Young Wan Kim ,  Nae-soo Kim

发明人： PanSoo Kim ,  Young Wan Kim ,  Nae-soo Kim

IPC分类号： H04L27/06

CPC分类号： H04L7/0054

摘要： A timing loop controller for multilevel modulation scheme is disclosed. The timing loop controller includes a first to fourth computing unit for computing a timing error between an input timing of digital signals and a sampling timing; a first to fourth quantization unit for controlling a direction and an error value of the timing error; a first and second sign detection unit for detecting sign change according to results; a zero crossing detection unit for detecting zero crossing at I axis and Q axis; and a timing error control unit for controlling the timing error value in case there is no sign change. The present invention can increase a zitter performance of timing error according to the signal-to-noise ratio by detecting the timing error, outputting the timing error and controlling the timing error output value only in case there is sign change by additionally equipping the sign variation detector.

摘要翻译： 公开了一种用于多电平调制方案的定时环路控制器。 定时回路控制器包括：第一至第四计算单元，用于计算数字信号的输入定时与采样定时之间的定时误差; 用于控制定时误差的方向和误差值的第一至第四量化单元; 用于根据结果检测符号变化的第一和第二符号检测单元; 零交叉检测单元，用于检测I轴和Q轴的过零点; 以及定时误差控制单元，用于在没有符号改变的情况下控制定时误差值。 本发明可以通过检测定时误差来提高定时误差的抖动性能，通过检测定时误差，输出定时误差并且仅在通过附加装配符号变化的情况下控制定时误差输出值 探测器。

公开(公告)号：US20060136799A1

公开(公告)日：2006-06-22

申请号：US11265451

申请日：2005-11-02

申请人： Eun-A Choi ,  Nae-Soo Kim ,  Deock-Gil Oh ,  Ji-Won Jung

发明人： Eun-A Choi ,  Nae-Soo Kim ,  Deock-Gil Oh ,  Ji-Won Jung

IPC分类号： H03M13/00

CPC分类号： H03M13/11

摘要： Provided are an LDPC decoding apparatus and method using a sequential decoding algorithm having a partial group, capable of reducing the number of an iterative decoding by more than half without degrading the performance and increasing an amount of computation. The LDPC decoding method includes the steps of: receiving a prior probability information (channel values) based on information on channel values associated with distance between symbol signals in constellation related to the received noise and LDPC encoded data, and initializing bit nodes; dividing check nodes into partial groups before updating check node information based on the prior probability information, and performing a decoding by applying a sequential decoding algorithm; determining whether a parity check equations are satisfied; and outputting decoded messages obtained when satisfying the parity check equation or after terminating an iterative processor by a termination algorithm.

公开(公告)号：US20050144543A1

公开(公告)日：2005-06-30

申请号：US10888167

申请日：2004-07-09

申请人： Eun-A Choi ,  Nae-Soo Kim ,  Ji-Won Jung ,  Sung-Jun Cho ,  Tae-Gil Lee ,  Sang-Jin Park ,  In-Ki Lee

发明人： Eun-A Choi ,  Nae-Soo Kim ,  Ji-Won Jung ,  Sung-Jun Cho ,  Tae-Gil Lee ,  Sang-Jin Park ,  In-Ki Lee

IPC分类号： G06F11/00

CPC分类号： H04L1/0057 ,  H03M13/1105 ,  H03M13/6337 ,  H03M13/6594 ,  H04L2001/0093

摘要： The present invention relates to a pre-processing apparatus using nonuniform quantization of a channel reliability value and a low density parity check (LDPC) decoding system. The pre-processing apparatus can present degradation in performance and be embodied simply by performing decoding pre-process by estimating a discrete channel reliability value (Lc*) through nonuniform quantization of a channel reliability value based on a relations between a bit error rate (BER) estimated through a simulation performed in advance and a standard deviation (σ) of channel noise within a predetermined range of noise estimation error and p, and bit-shifting a receiving signal as much as a discrete channel reliability value. The pre-processing apparatus includes: a channel reliability measuring unit, a nonuniform quantizing unit, a sign bit adding unit, a bit shifting unit.

摘要翻译： 本发明涉及使用信道可靠性值和低密度奇偶校验（LDPC）解码系统的非均匀量化的预处理装置。 预处理装置可以呈现性能下降，并且通过基于信道可靠性值的非均匀量化来估计离散信道可靠性值（L> c * *）来执行解码预处理 通过预先执行的模拟估计的误码率（BER）与噪声估计误差和p的预定范围内的信道噪声的标准偏差（sigma）之间的关系，以及将接收信号与离散信道 可靠性值。 预处理装置包括：信道可靠性测量单元，不均匀量化单元，符号位加法单元，位移单元。

公开(公告)号：US20120179373A1

公开(公告)日：2012-07-12

申请号：US13348421

申请日：2012-01-11

申请人： Chang Won LEE ,  Gwan Joong KIM ,  Nae Soo KIM ,  Hoon JEONG ,  Young Hwan HAM ,  Hyun Ook KIM

发明人： Chang Won LEE ,  Gwan Joong KIM ,  Nae Soo KIM ,  Hoon JEONG ,  Young Hwan HAM ,  Hyun Ook KIM

IPC分类号： G06F19/00

CPC分类号： G01N33/182

摘要： Provided are a method and a system for measuring total phosphorus that may predict total phosphorus of a river valley using multi-parameter water quality that are measured in real time through a multi-parameter water quality measuring unit and the like, and may increase the accuracy thereof. The total phosphorus measuring method according to the present disclosure includes: computing a correlation between the multi-parameter water quality and the total phosphorus using multi-parameter water quality data and total phosphorus data measured for a predetermined period; selecting upper parameters having a high correlation from among the multi-parameter water quality based on the computation result; generating a total phosphorus prediction model through a regression analysis between the upper parameters and the total phosphorus; measuring the multi-parameter water quality; and predicting the total phosphorus by replacing the total phosphorus prediction model with the measured multi-parameter water quality.

摘要翻译： 提供了一种用于测量总磷的方法和系统，其可以使用通过多参数水质测量单元等实时测量的多参数水质来预测河谷的总磷，并且可以提高精度 其中。 根据本公开的总磷测量方法包括：使用多参数水质数据和在预定时间段内测量的总磷数据来计算多参数水质与总磷之间的相关性; 基于计算结果从多参数水质中选择具有高相关性的上参数; 通过上层参数和总磷之间的回归分析产生总磷预测模型; 测量多参数水质; 并通过用测量的多参数水质替代总磷预测模型来预测总磷。

公开(公告)号：US20120163358A1

公开(公告)日：2012-06-28

申请号：US13335568

申请日：2011-12-22

申请人： Hoon JEONG ,  Nae Soo KIM

发明人： Hoon JEONG ,  Nae Soo KIM

IPC分类号： H04W84/12 ,  H04W40/02

CPC分类号： H04W40/02 ,  H04L45/48

摘要： A routing method in a wireless communication network, and more particularly, a method of efficiently routing an end device included in the wireless communication network is provided. The wireless communication network may provide data communications using multiple communication devices, and the communication devices may be defined by standards such as ZigBee, and IEEE 802.15.4.

摘要翻译： 提供了一种在无线通信网络中的路由方法，更具体地，提供了一种有效地路由包括在无线通信网络中的终端设备的方法。 无线通信网络可以使用多个通信设备提供数据通信，并且通信设备可以由诸如ZigBee和IEEE 802.15.4的标准来定义。

公开(公告)号：US20120155352A1

公开(公告)日：2012-06-21

申请号：US13324301

申请日：2011-12-13

申请人： Hoon JEONG ,  Nae Soo Kim

发明人： Hoon JEONG ,  Nae Soo Kim

IPC分类号： H04W84/02 ,  H04W52/02

CPC分类号： H04W52/0209 ,  H04W8/26 ,  H04W40/005 ,  H04W84/10 ,  H04W84/12 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162

摘要： Provided is a method of classifying and thereby providing various types of communication devices in a wireless local area communication network. More particularly, provided is a method that may provide an end device for efficient data communication. A parent device of an end device not supporting a sleep mode may transfer data without waiting for a polling operation of the end device.

摘要翻译： 提供了一种对无线局域网通信网络进行分类并提供各种通信设备的方法。 更具体地，提供了一种可以提供用于有效数据通信的终端设备的方法。 不支持睡眠模式的终端设备的父设备可以在不等待终端设备的轮询操作的情况下传送数据。

公开(公告)号：US08089909B2

公开(公告)日：2012-01-03

申请号：US12149255

申请日：2008-04-29

申请人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

发明人： Se Han Kim ,  Kyeseon Lee ,  Chong-Ho Yoon ,  Gang-Ho Byun ,  Nae-Soo Kim ,  Cheol Sig Pyo

IPC分类号： G08C17/00 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04W74/0808 ,  H04L7/041 ,  H04W52/0216 ,  H04W74/002 ,  Y02D70/166

摘要： Provided is a method of transmitting/receiving data in a sensor node for reducing overhearing of sensor nodes, and a sensor network which implements the method. A sender node having transmission data from among a plurality of nodes which perform a low power listening (LPL) operation in an asynchronous manner at predetermined time intervals, generates a long preamble including short preambles, each having information including a destination address of the transmission data, a remainder of the long preamble, and a length of the transmission data, and sequentially transmits the second preamble and the transmission data. A receiver node from among the plurality of nodes determines whether a valid signal is sensed during an active state in the LPL operation. If it is determined that the valid signal is sensed, the receiver node receives the short preamble transmitted from the sender node. The receiver node determines a duration time of a deactivated state of the receiver node based on the received first preamble, thereby reducing overhearing in the sensor network.

摘要翻译： 提供了一种在传感器节点中发送/接收数据以减少传感器节点的窃听的方法，以及实现该方法的传感器网络。 具有以预定时间间隔以异步方式执行低功率监听（LPL）操作的多个节点的发送数据的发送方节点生成包括短前导码的长前导码，每个具有包含发送数据的目的地地址的信息 ，长前导码的剩余部分和发送数据的长度，并顺序发送第二前同步码和发送数据。 多个节点中的接收器节点确定在LPL操作中的活动状态期间是否感测到有效信号。 如果确定感测到有效信号，则接收器节点接收从发送器节点发送的短前置码。 接收机节点基于接收到的第一前导码来确定接收机节点的去激活状态的持续时间，从而减少传感器网络中的窃听。

公开(公告)号：US20110194471A1

公开(公告)日：2011-08-11

申请号：US12808542

申请日：2008-10-24

申请人： Ji-Eun Kim ,  Kang Ho-yong ,  Nae-Soo Kim ,  Cheol-l-Sig Pyo

发明人： Ji-Eun Kim ,  Kang Ho-yong ,  Nae-Soo Kim ,  Cheol-l-Sig Pyo

IPC分类号： H04W52/02

CPC分类号： H04W52/0235

摘要： Provided are a wake-up apparatus and wake-up method for a low power sensor node, and more particularly, to a wake-up apparatus and wake-up method for a low power sensor node, which can extend the battery life of the sensor node and minimize the amount of power consumed by an entire sensor network power by minimizing unnecessary power consumption of the sensor node. The wake-up apparatus for a low power sensor node includes: a wake-up signal detector receiving and detecting a wake-up signal of a sensor node; a wake-up radio frequency (RF) circuit unit filtering and amplifying the wake-up signal; and a wake-up baseband transducer detecting a wake-up address from the wake-up signal and comparing and verifying the wake-up address with a wake-up address that is provided from a server managing the sensor node. The wake-up apparatus outputs an interrupt signal for transmitting a sensing event of the sensor node or outputs a wake-up address of another sensor node in an area where the interrupt signal is to be sensed if errors are not detected when the wake-up address is verified.

摘要翻译： 提供了用于低功率传感器节点的唤醒装置和唤醒方法，更具体地，涉及用于低功率传感器节点的唤醒装置和唤醒方法，其可以延长传感器的电池寿命 节点，并通过最小化传感器节点的不必要的功耗来最小化整个传感器网络功率消耗的功率量。 用于低功率传感器节点的唤醒装置包括：唤醒信号检测器，其接收并检测传感器节点的唤醒信号; 唤醒射频（RF）电路单元对唤醒信号进行滤波和放大; 以及唤醒基带传感器，从唤醒信号检测唤醒地址，并用从管理传感器节点的服务器提供的唤醒地址来比较和验证唤醒地址。 唤醒装置输出用于发送传感器节点的感测事件的中断信号，或者在唤醒时未检测到错误的情况下，在要检测中断信号的区域中输出另一个传感器节点的唤醒地址 地址已验证。