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    • 23. 发明公开
    • 센서 노드 및 라우팅 방법
    • 传感器节点和路由方法
    • KR1020110131754A
    • 2011-12-07
    • KR1020100051348
    • 2010-05-31
    • 한국전자통신연구원
    • 박노성김봉완채종석표철식강성수도윤미전종암
    • H04L12/28
    • H04L45/16H04L67/12
    • PURPOSE: A sensor node and routing method are provided to reduce the broadcasting number of routing information by improving the efficiency of routing information broadcasting. CONSTITUTION: When routing information is received, a routing information collection unit(120) collects routing information which is received during a waiting time. A node selection unit(130) collects one or more routing information received during the waiting time when the waiting time is finished. The node selection unit selects an optimized parent node. A routing information dividing unit(100) divides routing information to a preamble size. The routing information dividing unit transmits the divided routing information to other node.
    • 目的:提供传感器节点和路由方法,通过提高路由信息广播的效率来减少路由信息的广播数量。 规定:当接收到路由信息时,路由信息收集单元(120)收集等待时间内接收到的路由信息​​。 节点选择单元(130)收集在等待时间结束的等待时间期间接收到的一个或多个路由信息。 节点选择单元选择优化的父节点。 路由信息分割单元(100)将路由信息划分为前导码大小。 路由信息分割单元将划分的路由信息​​发送到其他节点。
    • 26. 发明授权
    • 무선 네트워크에서의 동적 예비클러스터 헤드를 이용한토폴로지 관리 방법
    • 无线网络中使用动态前置集群头的拓扑管理方法
    • KR100695333B1
    • 2007-03-16
    • KR1020060025624
    • 2006-03-21
    • 한국전자통신연구원연세대학교 산학협력단
    • 박노성도윤미김재현장상석이재용
    • H04L12/24H04L29/02H04L12/28
    • H04W40/10H04W40/32H04W84/18
    • A topology management method using a dynamic preliminary cluster head in a wireless network is provided to be capable of minimizing frequent re-clustering processes due to various topology changes, through a dynamic preliminary cluster head technique, thus an overhead is minimized while overall duration and performance of the network can be maximized. Each node confirms neighboring nodes located within a single home range through received hello messages(201). Each node calculates self weight in consideration of the remaining amount of a battery and node density(connectivity)(202). Each node broadcasts hello messages which include the weight(203), and selects a node having the highest weight as a cluster head(204). The selected cluster head broadcasts a hello message which includes a cluster ID, configures weight maps by using a prediction technique based on the hello messages of the other general nodes, and selects a node having the highest weight map as a preliminary cluster head(205). The cluster head broadcasts a hello message which includes a preliminary cluster head ID(206), and compares the weight map with a load balancing threshold value(207). If the weight map is larger, a cluster member calculates a hop count from the cluster head through the received hello message, and selects a cluster having a small hop count as a self cluster(209).
    • 提供了一种使用无线网络中的动态初始群集头的拓扑管理方法,通过动态初步群集头技术,能够最大限度地减少由于各种拓扑变化引起的频繁重新聚类过程,从而将开销最小化,同时保持总体持续时间和性能 的网络可以最大化。 每个节点通过接收到的hello消息(201)确认位于单个归属范围内的相邻节点。 每个节点考虑到电池的剩余量和节点密度(连通性)(202)来计算自重。 每个节点广播包括权重(203)的hello消息,并且选择具有最高权重的节点作为簇头(204)。 所选择的集群头广播包括集群ID的一个hello消息,通过使用基于其他通用节点的hello消息的预测技术来配置权重映射,并且选择具有最高权重映射的节点作为初始簇头(205) 。 集群头广播包含初步的集群头ID(206)的一个hello消息,并将权重映射与负载均衡阈值(207)进行比较。 如果权重映射较大,则集群成员通过接收到的hello消息从簇头计算跳数,并选择具有小跳数的集群作为自身集群(209)。
    • 28. 发明公开
    • 대기 전력 제어 장치 및 제어 방법
    • 备用电源控制装置及其控制方法
    • KR1020110070409A
    • 2011-06-24
    • KR1020090127218
    • 2009-12-18
    • 한국전자통신연구원
    • 도윤미박노성전종암표철식
    • H04L12/28H04L12/10
    • H02J9/005H02J2009/007
    • PURPOSE: A standby power control apparatus and method are provided to automatically seclude the power source of an electronic device or a device group which is driven by a standby power source for a predetermined time. CONSTITUTION: A central control unit(110) monitors one load power among a plurality of electronic devices(120,130,140,150,160,170,180,190). The central control unit electrically connects or secludes one electronic device to/from a power line with reference to a monitoring result and each profile information of the electronic device. In case the load power is sustained over a reference time in a standby mode, the central control unit secludes or connects the one electronic device from/to the power line.
    • 目的:提供一种备用电源控制装置和方法,用于自动地将由备用电源驱动的电子设备或设备组的电源隔离预定时间。 构成:中央控制单元(110)监视多个电子设备(120,130,140,​​150,160,170,180,190)中的一个负载功率。 参考电子设备的监视结果和每个简档信息,中央控制单元将一个电子设备与电源线电连接或隔离。 如果负载功率在待机模式下在参考时间内持续,则中央控制单元将电子设备从电源线/电源线间隔开或连接。
    • 29. 发明公开
    • 비동기 MAC을 이용하는 센서 노드
    • 使用异步MAC的传感器节点
    • KR1020100124220A
    • 2010-11-26
    • KR1020100046276
    • 2010-05-18
    • 한국전자통신연구원
    • 박노성도윤미전종암
    • H04W84/18H04W80/02
    • H04W74/085H04W72/0453H04W74/0816H04W80/02H04W84/18H04W88/02
    • PURPOSE: A sensor node using the asynchronous MAC is provided to continuously receive a traffic form a transmission node by extending the time which a receiver stays up, thereby reducing the collision by a change of frequency band for data transceiving. CONSTITUTION: A preamble transmitting unit(310) transmits a preamble through a first frequency band with a receiving node(350). A preamble ACK(Acknowledge) receiver(320) receives ACK about the preamble through the first frequency band from the receiving node. A data transmitting unit(330) transmits data through a secondary frequency band which is different from the first frequency band with the receiving node. A data ACK receiver(340) receives ACK about the data through the secondary frequency band from the receiving node.
    • 目的:提供使用异步MAC的传感器节点,通过延长接收机停留时间来连续接收传输节点的流量,从而通过数据收发频带的变化来减少冲突。 构成:前导码发送单元(310)通过第一频带与接收节点(350)发送前导码。 前导码ACK(应答)接收机(320)从接收节点通过第一频带接收关于前导码的ACK。 数据发送单元(330)通过与接收节点不同于第一频带的次频带发送数据。 数据ACK接收器(340)从接收节点通过次频带接收关于数据的ACK。