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    • 92. 发明申请
    • APPARATUS AND METHOD FOR CHARGING INTERNAL BATTERY IN WIRELESS SENSOR NETWORK
    • 在无线传感器网络中充电内部电池的装置和方法
    • US20110148349A1
    • 2011-06-23
    • US12885872
    • 2010-09-20
    • Se Han KIMNae Soo KimHo Yong KangKyo Hoon SonCheol Sig Pyo
    • Se Han KIMNae Soo KimHo Yong KangKyo Hoon SonCheol Sig Pyo
    • H02J7/00
    • H02J7/025G01D21/00H02J17/00H02J50/00H02J50/80H04W52/0261H04W84/18
    • Provided are an apparatus and method for charging an internal battery in a wireless sensor network. A method for a slave sensor node to charge an internal battery in a sensor network includes estimating an hourly chargeable electric energy rate in a scan phase with a master sensor node, transmitting the estimated hourly chargeable electric energy rate using an association request message requesting association with the master sensor node after recognizing the master sensor node, requesting charging from the master sensor node and performing wireless charging when a power level of an internal battery requires charging, reporting the power level of the internal battery varied by the wireless charging to the master sensor node by predetermined time periods during the wireless charging, and stopping the wireless charging when the power level reported to the master sensor node reaches a predetermined power level.
    • 提供了一种用于在无线传感器网络中对内部电池充电的装置和方法。 用于从传感器节点对传感器网络中的内部电池充电的方法包括:利用主传感器节点估计与扫描阶段相关的小时可收费的电能率,使用与所述主传感器节点相关联的关联请求消息来传送所估计的小时可收费电能利率 主传感器节点在识别主传感器节点之后,请求从主传感器节点进行充电,并且当内部电池的功率电平需要充电时执行无线充电,报告内部电池的功率电平由主传感器的无线充电而变化 节点在无线充电期间预定的时间段,并且当向主传感器节点报告的功率电平达到预定功率电平时停止无线充电。
    • 93. 发明授权
    • Apparatus and method for selecting antennas and nodes MIMO communication system
    • 选择天线和节点MIMO通信系统的装置和方法
    • US07920834B2
    • 2011-04-05
    • US11736798
    • 2007-04-18
    • Wun Cheol JeongNae Soo KimCheol Sig Pyo
    • Wun Cheol JeongNae Soo KimCheol Sig Pyo
    • H04B1/02
    • H04B7/0874H04B7/04
    • An apparatus and method for selecting antennas and nodes in a multi-input multi-output (MIMO) communication system are provided. The apparatus includes a reception unit which detects a communication initiation signal from among a plurality of received signals, a first combination unit which calculates communication capacity based on the communication initiation signal, searches for a combination of transmission antennas that can maximize the communication capacity, and performs communication using the identified combination of transmission antennas, a second combination unit which calculates an average signal-to-noise ratio (SNR) of each node based on the communication initiation signal and selects a node with a highest average SNR and performs communication using the selected node, and a selection unit which activates one of the first combination unit and the second combination unit and inactivates the other combination unit. When the quality of signals transmitted between wireless nodes deteriorates due to a poor channel environment, a node that can minimize the shadowing effect caused by an obstacle that blocks the path of transmission of signals is selected using space diversity. Therefore, it is possible to minimize link communication failures. In addition, it is possible to maximize communication capacity by achieving spatial multiplexing gain using an array antenna that is mounted on a node.
    • 提供了一种用于在多输入多输出(MIMO)通信系统中选择天线和节点的装置和方法。 该装置包括:检测多个接收信号中的通信起始信号的接收单元,基于通信发起信号计算通信容量的第一组合单元,搜索可以使通信容量最大化的发送天线的组合;以及 使用所识别的发送天线的组合来执行通信;第二组合单元,其基于通信发起信号计算每个节点的平均信噪比(SNR),并选择具有最高平均SNR的节点,并使用 选择节点,以及选择单元,其激活第一组合单元和第二组合单元中的一个,并且使另一组合单元无效。 当在无线节点之间传输的信号质量由于信道环境恶化而恶化时,可以使用空间分集来选择可以最小化阻塞信号传输路径的障碍物所引起的阴影效应的节点。 因此,可以使链路通信失败最小化。 此外,可以通过使用安装在节点上的阵列天线来实现空间复用增益来最大化通信容量。
    • 94. 发明授权
    • Apparatus and method for controlling multi-channel access
    • 用于控制多通道访问的装置和方法
    • US07899074B2
    • 2011-03-01
    • US12153704
    • 2008-05-22
    • Tae Joon ParkSe Han KimNae-Soo KimCheol Sig PyoJae Yong LeeByung Chul Kim
    • Tae Joon ParkSe Han KimNae-Soo KimCheol Sig PyoJae Yong LeeByung Chul Kim
    • H04L12/40
    • H04W72/02H04W72/0406Y02D70/142Y02D70/166
    • Provided is an apparatus and method for controlling multi-channel access in USN-based MAC. The multi-channel access control apparatus includes a channel scanner, a control channel preoccupier, and an available channel exchanger. The channel scanner scans at least one or more available channels among the N data channels in a Tx sensor node. The control channel preoccupier preoccupies, in the Tx sensor node, the control channel through control channel sensing and back-off and broadcasts a preamble on the control channel periodically. The available channel exchanger detects, in an Rx sensor node, the available channels available to the Tx sensor node on the basis of the received preamble, selects a channel available to the Rx sensor node among the detected available channels, and transmits information about the selected channel to the Tx sensor node.
    • 提供了一种用于在基于USN的MAC中控制多信道接入的装置和方法。 多通道访问控制装置包括信道扫描器,控制信道预占方和可用信道交换机。 信道扫描器扫描Tx传感器节点中的N个数据信道中的至少一个或多个可用信道。 控制信道预占在Tx传感器节点中通过控制信道感测和退避来控制控制信道,并且周期性地在控制信道上广播前导码。 可用信道交换机在Rx传感器节点中,根据接收到的前导码检测Tx传感器节点可用的可用信道,在检测到的可用信道中选择可用于Rx传感器节点的信道,并发送关于所选择的信道的信息 通道到Tx传感器节点。
    • 95. 发明申请
    • SYSTEM AND METHOD FOR PROVIDING POLICY BASED RADIO FREQUENCY IDENTIFICATION SERVICE
    • 提供基于政策的无线电频率识别服务的系统和方法
    • US20100097242A1
    • 2010-04-22
    • US12508502
    • 2009-07-23
    • Hyochan BANGJae Gak HwangCheol Sig PyoHyung Jin AhnKwang Hoon Kim
    • Hyochan BANGJae Gak HwangCheol Sig PyoHyung Jin AhnKwang Hoon Kim
    • H04B14/00
    • G06F21/604
    • Disclosed is a system and method for providing a policy based radio frequency identification service The system for providing the policy based radio frequency identification service includes a policy vocabulary managing device for generating and managing policy vocabulary based on a policy vocabulary writer's control input, a policy performing resource managing device for generating and managing resource information for performing a radio frequency identification service policy based on a resource designator's control input, a policy rule managing device for generating and managing a policy rule sentence based on a policy user's control input, and a policy rule performing device for performing a radio frequency identification service policy by using a policy rule sentence input based on a policy user's control input.
    • 公开了一种用于提供基于策略的射频识别服务的系统和方法。用于提供基于策略的射频识别服务的系统包括:策略词汇管理设备,用于基于策略词汇写入器的控制输入来生成和管理策略词汇,策略执行 资源管理装置,用于基于资源指示符的控制输入生成和管理用于执行射频识别服务策略的资源信息;策略规则管理装置,用于基于策略用户的控制输入生成和管理策略规则句;以及策略规则 用于通过使用基于策略用户的控制输入输入的策略规则句来执行射频识别服务策略。
    • 97. 发明申请
    • Apparatus and method for controlling multi-channel access
    • 用于控制多通道访问的装置和方法
    • US20090154485A1
    • 2009-06-18
    • US12153704
    • 2008-05-22
    • Tae Joon ParkSe Han KimNae-Soo KimCheol Sig PyoJae Yong LeeByung Chul Kim
    • Tae Joon ParkSe Han KimNae-Soo KimCheol Sig PyoJae Yong LeeByung Chul Kim
    • H04L12/40
    • H04W72/02H04W72/0406Y02D70/142Y02D70/166
    • Provided is an apparatus and method for controlling multi-channel access in USN-based MAC. The multi-channel access control apparatus includes a channel scanner, a control channel preoccupier, and an available channel exchanger. The channel scanner scans at least one or more available channels among the N data channels in a Tx sensor node. The control channel preoccupier preoccupies, in the Tx sensor node, the control channel through control channel sensing and back-off and broadcasts a preamble on the control channel periodically. The available channel exchanger detects, in an Rx sensor node, the available channels available to the Tx sensor node on the basis of the received preamble, selects a channel available to the Rx sensor node among the detected available channels, and transmits information about the selected channel to the Tx sensor node.
    • 提供了一种用于在基于USN的MAC中控制多信道接入的装置和方法。 多通道访问控制装置包括信道扫描器,控制信道预占方和可用信道交换机。 信道扫描器扫描Tx传感器节点中的N个数据信道中的至少一个或多个可用信道。 控制信道预占在Tx传感器节点中通过控制信道感测和退避来控制控制信道,并且周期性地在控制信道上广播前导码。 可用信道交换机在Rx传感器节点中,根据接收到的前导码检测Tx传感器节点可用的可用信道,在检测到的可用信道中选择可用于Rx传感器节点的信道,并发送关于所选择的信道的信息 通道到Tx传感器节点。
    • 99. 发明申请
    • BEACON SCHEDULING SYSTEM AND METHOD FOR PREVENTING BEACON OVERLAPPING
    • BEACON调度系统和防止BEACON OVERLAPPING的方法
    • US20080137599A1
    • 2008-06-12
    • US11947342
    • 2007-11-29
    • Young Hwan HAMSun Joong KimCheol Sig Pyo
    • Young Hwan HAMSun Joong KimCheol Sig Pyo
    • H04Q7/00
    • H04W16/10H04W48/12H04W84/18
    • Provided are a beacon scheduling system and method for preventing beacon overlapping in a ZigBee network including routers each with a beacon slot number according to a specific time slot. The system includes: a first router periodically transmitting beacons at a beacon interval according to a specific time slot; and a second router finding the beacon interval by scanning the beacons transmitted by the first router and transmitting beacons within the beacon interval in consideration of a superframe period for transmitting data. When a router in a sensor network operates, the router can efficiently select the beacon transmission time, and a sink node manages beacon overlapping between all the routers. Therefore, stable, low-energy consumption, and excellent performance sensor networking environments can be established in a beacon mode.
    • 提供了一种用于防止ZigBee网络中的信标重叠的信标调度系统和方法,包括根据特定时隙具有信标时隙号的路由器。 该系统包括:第一路由器根据特定时隙周期性地以信标间隔发送信标; 以及第二路由器,通过扫描由第一路由器发送的信标并在考虑用于发送数据的超帧周期之内在信标间隔内发送信标来找到信标间隔。 当传感器网络中的路由器运行时,路由器可以有效地选择信标传输时间,并且汇聚节点管理所有路由器之间的信标重叠。 因此,可以在信标模式下建立稳定,低能耗和卓越性能的传感器网络环境。