-
公开(公告)号：KR101309840B1
公开(公告)日：2013-09-23
申请号：KR1020090125926
申请日：2009-12-17
Applicant: 한국전자통신연구원
CPC classification number: H02J7/025 , G01D21/00 , H02J17/00 , H02J50/00 , H02J50/80 , H04W52/0261 , H04W84/18
Abstract: 본 발명은 무선 센서 노드 간의 무선 채널을 통해 전력을 충전하는 장치 및 방법에 관한 것으로, 본 발명의 일실시 예에 따른 센서 네트워크에서 종속 센서 노드가 내부 배터리를 충전하는 방법은, 주 센서 노드와의 스캔 절차에서 시간당 충전 가능 전력량을 예측하는 과정; 상기 주 센서 노드의 존재를 인지한 후 상기 주 센서 노드로의 결합을 요청하는 결합 요청 메시지를 통해 상기 예측한 시간당 충전 가능 전력량을 전송하는 과정; 내부 배터리의 전력 레벨이 충전이 요구되는 상황이면, 상기 주 센서 노드로 충전을 요청하여 무선 충전을 수행하는 과정; 상기 무선 충전이 수행되는 동안 소정 주기에 의해 상기 무선 충전에 의해 변화되는 상기 내부 배터리의 전력 레벨을 상기 주 센서 노드로 보고하는 과정; 및 상기 주 센서 노드로 보고된 전력 레벨이 미리 결정된 전력 레벨에 도달할 시에 상기 무선 충전을 중단하는 과정을 포함한다.
상술한 바와 같이 본 발명은, 무선 채널을 통해 전력을 지속적으로 충전하여 센서 노드의 수명을 연장시킬 수가 있다.
무선 센서 네트워크, 센서 노드, 배터리, 충전-
公开(公告)号：KR1020130068126A
公开(公告)日：2013-06-25
申请号：KR1020110135629
申请日：2011-12-15
Applicant: 한국전자통신연구원
IPC: H03K17/16
CPC classification number: H04B17/0057 , H02M7/23 , H03F3/45071 , H03F3/45179 , H03F3/45183 , H03F3/45475 , H03F3/45659 , H03F3/45973 , H03F2203/45008 , H03F2203/45082 , H03F2203/45138 , H04B17/318
Abstract: PURPOSE: A rectifier, a received signal strength indicator using the same, and a receiver using the same are provided to improve linearity although a low voltage is supplied. CONSTITUTION: A received signal strength indicator(RSSI) includes six differential amplifiers, seven full wave rectifying circuits, a secondary low pass filter, and a DC offset cancelling unit. The six differential amplifiers form an amplifier chain. The six differential amplifiers amplify output signals of two band pass filters. One full wave rectifying circuit rectifies differential signals outputted by the two band pass filters. Six full wave rectifying circuits respectively rectify differential signals outputted by six differential amplifiers. Output signals of seven full wave rectifying circuits are merged by the secondary low pass filter and are filtered to generate a display voltage such as DC.
Abstract translation: 目的：提供整流器，使用其的接收信号强度指示器和使用该整流器的接收器，以提高线性度，尽管提供了低电压。 构成：接收信号强度指示器（RSSI）包括六个差分放大器，七个全波整流电路，二次低通滤波器和一个直流偏移消除单元。 六个差分放大器形成放大器链。 六个差分放大器放大两个带通滤波器的输出信号。 一个全波整流电路整流由两个带通滤波器输出的差分信号。 六路全波整流电路分别对六路差分放大器输出的差分信号进行整流。 七个全波整流电路的输出信号由二次低通滤波器合并，并被滤波以产生诸如DC的显示电压。
-
公开(公告)号：KR1020120130110A
公开(公告)日：2012-11-29
申请号：KR1020110047920
申请日：2011-05-20
Applicant: 한국전자통신연구원 , 세종대학교산학협력단
CPC classification number: H04W84/18 , H04W28/06 , H04W72/082 , H04W74/0866
Abstract: PURPOSE: A channel selection method and communication method are provided to convert a communication channel by sensing wireless interference from a Zigbee sensor network. CONSTITUTION: An interference sensing process is repeated(205). When interference is sensed, a channel hopping method is executed by considering a Wi-Fi channel in a current channel. It is determined whether a channel is available(211). When the available channel is not searched, a hopping sequence interval is controlled(215). It is searched whether the channel is available. When the available channel is searched, the available channel is used for communication. [Reference numerals] (205) Interference sensed?; (AA,CC,EE,KK,HH,II,OO,PP) No; (BB,DD,FF,GG,LL,JJ,MM,NN) Yes
Abstract translation: 目的：提供信道选择方法和通信方法，通过感测来自Zigbee传感器网络的无线干扰来转换通信信道。 构成：重复干扰感测过程（205）。 当感测到干扰时，通过考虑当前信道中的Wi-Fi信道来执行信道跳频方法。 确定信道是否可用（211）。 当搜索可用信道时，控制跳频序列间隔（215）。 搜索该频道是否可用。 当搜索可用频道时，使用可用频道进行通信。 （附图标记）（205）感测到的干扰 （AA，CC，EE，KK，HH，II，OO，PP）否; （BB，DD，FF，GG，LL，JJ，MM，NN）是的
-
公开(公告)号：KR101001558B1
公开(公告)日：2010-12-17
申请号：KR1020080111211
申请日：2008-11-10
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L12/4035 , H04W16/00 , H04W28/06 , H04W40/246 , H04W48/08 , H04W84/10 , H04W84/18
Abstract: 본 발명은 Zigbee 또는 IEEE802.15.4 Low-Rate WPAN(Wireless Personal Area Netwrok)과 같이 동기식 기반의 센서 네트워크 MAC(Medium Access Control) 프로토콜 활용에 관한 방법 및 장치에 관한 것이다.
본 발명에 따른 동기식 기반 센서 네트워크 구성 방법 및 장치는 USN(Ubiquitous Sensor Network)시스템 구축에 있어서 Power-Beacon을 사용하여 불필요한 제어 패킷의 수를 줄여 네트워크 수명을 연장하고, 노드간 초기화 시간을 단축하고, Beacon 충돌 방지를 제공하는 센서 네트워크 구성 방법 및 장치에 관한 것이다.
본원 발명에 따른 센서 네트워크의 구성 방법 및 장치는 출력세기가 큰 비컨(Beacon) 패킷 채널과 비컨 패킷보다 출력세기를 작게하여 전송 범위를 제한한 데이터채널을 동시에 사용하는 것이 특징이 있다.
유비쿼터스, 센서 네트워크, USN(Ubiquitous Sensor Network), WSN(Wireless Sensor Network), MAC(Medium Access Control)Abstract translation: 公开了一种使用诸如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。 一种用于构建普遍存在的传感器网络（USN）的方法和装置，其通过使用功率信号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冲突，也是 披露。 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。
-
35.发明公开
公开(公告)号：KR1020100070112A
公开(公告)日：2010-06-25
申请号：KR1020080128716
申请日：2008-12-17
Applicant: 한국전자통신연구원
IPC: H04W52/02
CPC classification number: H04W52/0235 , H04W84/18 , Y02D70/144 , Y02D70/162
Abstract: PURPOSE: A sensor node based on asynchronous MAC protocol and a data transceiving method performed in the sensor node are provided to solve problems such as data transmitting delay reduction, overhead reduction due to time synchronization and battery consumption amount reduction. CONSTITUTION: A main transceiver(412) transceives data. A wake-up RF module(413) converts state of a node. An MCU(Micro Control Units)(411) transmits a wake-up frame to at least one receiving node through the wake-up RF module. The MCU receives the wake-up frame. The MCU transmits data to an activated receiving node through the main transceiver.
Abstract translation: 目的：提供基于异步MAC协议的传感器节点和传感器节点执行的数据收发方法，解决数据传输延迟减少，时间同步造成的开销降低和电池消耗量减少等问题。 构成：主收发器（412）收发数据。 唤醒RF模块（413）转换节点的状态。 MCU（微控制单元）（411）通过唤醒RF模块向至少一个接收节点发送唤醒帧。 MCU接收唤醒帧。 MCU通过主收发器向激活的接收节点发送数据。
-
Patent Agency Ranking
公开(公告)号：KR100912825B1
公开(公告)日：2009-08-18
申请号：KR1020070133742
申请日：2007-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04L67/125 , H04L67/12 , H04L67/18 , H04W4/02 , H04W52/0235 , H04W52/028 , H04W76/27 , Y02D70/166
Abstract: Provided are a transmitting apparatus, a transmitting method, a receiving apparatus, a receiving method and a channel status information updating method of a sensor node based on multiple channels. The transmitting apparatus and method transmit a wake-up signal for switching neighbor nodes in a power-saving mode in a transmission range of the sensor node to a wake-up mode in which the neighbor nodes wait to receive a message from the sensor node through the control channel, transmit a preamble message including a list of unused available channels from among the data channels to a receiving node to which data is transmitted from among the neighbor nodes through the control channel, receive an acknowledgement message including information that indicates a channel selected from the available channels from the receiving node through the control channel, transmit a connection confirmation message for switching neighbor nodes other than the receiving node to the power-saving mode through the control channel, and transmit data to the receiving node through the selected channel.
-
公开(公告)号：KR1020090066120A
公开(公告)日：2009-06-23
申请号：KR1020070133742
申请日：2007-12-18
Applicant: 한국전자통신연구원
CPC classification number: H04L67/125 , H04L67/12 , H04L67/18 , H04W4/02 , H04W52/0235 , H04W52/028 , H04W76/27 , Y02D70/166
Abstract: A transmission device of a sensor node based on multi-channels using a wakeup signal, a transmission method, a transmission device and a channel state information update method are provided to improve the reliability and performance and extend the life time of network. A wakeup signal transmitter(110) transmits wakeup signal. A preamble transmitter(120) transmits a preamble message to a receiving node delivering data among adjacent nodes. A receive acknowledgement message receiver(130) receives the receive acknowledgement message. A connection confirm message transmitter transmits the connection confirm message. A connection confirming message converts adjacent nodes except for the receiving node into the power saving state. A data transmitter transmits data in the receiving node.
Abstract translation: 提供基于使用唤醒信号的多信道的传感器节点的传输设备，传输方法，传输设备和信道状态信息更新方法，以提高可靠性和性能并延长网络的使用寿命。 唤醒信号发送器（110）发送唤醒信号。 前导发射机（120）向接收节点发送前导消息，以在相邻节点之间传送数据。 接收确认消息接收器（130）接收接收确认消息。 连接确认消息发送器发送连接确认消息。 连接确认消息将除了接收节点之外的相邻节点转换成省电状态。 数据发送器在接收节点中发送数据。
-
公开(公告)号：KR1020090066119A
公开(公告)日：2009-06-23
申请号：KR1020070133741
申请日：2007-12-18
Applicant: 한국전자통신연구원
Abstract: A USN protocol analysis device for using an XML schema is provided to analyze a plurality of channels and analyze various protocols about XML by analyzing the protocol by using the USN protocols. A packet analyzer(100) collects a packet which communications with sensor nodes of USN(Ubiquitous Sensor Network) through a channel. A protocol analyzer(110) uses XML(eXensible Markup Language) schema defined according to USN protocol by processing the collected packet. The packet analysis unit includes a transceiver. The packet is collected by using the transceiver.
Abstract translation: 提供了一种使用XML模式的USN协议分析设备，用于分析多个通道，并通过使用USN协议分析协议来分析关于XML的各种协议。 分组分析器（100）通过信道收集与USN（无处不在的传感器网络）的传感器节点进行通信的分组。 协议分析器（110）使用通过处理收集的分组根据USN协议定义的XML（可读标记语言）模式。 分组分析单元包括收发机。 使用收发器收集数据包。
-
公开(公告)号：KR100779105B1
公开(公告)日：2007-11-27
申请号：KR1020060124153
申请日：2006-12-07
Applicant: 한국전자통신연구원
CPC classification number: H04W52/16 , H04W52/325 , H04W74/08 , H04W84/18
Abstract: A USN(Ubiquitous Sensor Network) system using a multichannel having different radio wave strengths and a method for configuring the same are provided to reduce beacon transfer delays and easily make time synchronization between sensor nodes by configuring a sensor field using both a control frequency having a large output and a data frequency having a smaller output than the control frequency. A USN system using a multichannel having different radio wave strengths comprises a sink node and a sensor node. The sink node communicates with the sensor node with one or more frequencies having different outputs. The sensor node communicates with the sink node with the frequencies. The sink node comprises the first output part(310) and the second output part(320). The first output part(310) outputs control data at a frequency for a control channel to control the sensor node. The second output part(320) outputs data at a frequency for a data channel to transmit and receive data with the sensor node.
Abstract translation: 提供使用具有不同无线电波强度的多信道的USN（无处不在的传感器网络）系统及其配置方法，以减少信标传输延迟，并且通过使用具有 大的输出和具有比控制频率更小的输出的数据频率。 使用具有不同无线电波强度的多信道的USN系统包括汇聚节点和传感器节点。 汇聚节点与具有不同输出的一个或多个频率的传感器节点通信。 传感器节点与汇聚节点以频率进行通信。 汇聚节点包括第一输出部分（310）和第二输出部分（320）。 第一输出部分（310）输出用于控制信道的频率的控制数据以控制传感器节点。 第二输出部分（320）输出用于数据信道的频率的数据，以便与传感器节点发送和接收数据。
-
40.发明公开복수의 무선랜 접속장치가 설치된 환경에서 무선랜접속장치의 최대 성능을 보장하기 위한 사용자 단말과무선랜 접속장치의 채널 연결 설정 방법 无效在公共无线局域网中建立用户代理和无线接入点之间的通道的方法
公开(公告)号：KR1020050065123A
公开(公告)日：2005-06-29
申请号：KR1020030096890
申请日：2003-12-24
Abstract: Provided is a method for communication between access points (APs) and for a user agent (UA)'s selecting an AP and establishing a connection by which in establishing a connection between a wireless LAN AP providing a wireless LAN service and the UA in a public wireless LAN service utilizing a wireless LAN technology, a maximum efficiency of the AP a maximum performance of the UA can be obtained. According to the method, the number of user agents connected to a current AP and the amount of traffic being currently processed are compared with the maximum capacity of a neighboring AP and the number of user agents connected to and being serviced by the neighboring AP, to recommend an optimum AP to the user agent. By doing so, the user agent is allowed to comprehensively review information on the number of user agents connected to an adjacent AP and the amount of traffic being processed by the AP as well as reception sensitivity, and then to select an optimum AP.
-
-
-
-
-
-
-
-
-
Search Results
83
records
(took 0.032 seconds)
