公开(公告)号：KR1020100022298A

公开(公告)日：2010-03-02

申请号：KR1020080080913

申请日：2008-08-19

Applicant: 성균관대학교산학협력단

Inventor： 추현승 ,  신인영 ,  김문성

IPC: H04L12/28

CPC classification number: H04W40/32 ,  H04L45/32 ,  H04L45/46 ,  H04L45/48 ,  H04W84/18

Abstract: PURPOSE: A strong backbone in a multi-hop cluster formed by residual energy and degree of the backbone using the strong multi-hop cluster of the sensor network is provided to form the backbone by selecting the node of high energy level into the cluster head. CONSTITUTION: A flooding value is calculated according to each node(S100). The node is compared with the flooding value of neighbor and the flooding value designated to the final round of FloodMax. The node is stored in the low value in the flooding arrangement(S130). The presence of the same value is determined among the flooding value stored in the Floodmax step and the value saved in the Floodmin step(S150). The cluster head is instituted as the cluster head of the specific node(S180).

Abstract translation: 目的：通过使用传感器网络的强大多跳簇，通过剩余能量和骨干度形成的多跳簇中的强大骨干网，通过选择高能级节点进入簇头，形成骨干网。 构成：根据每个节点计算溢流值（S100）。 将该节点与相邻的洪泛值和指定给最后一轮FloodMax的洪泛值进行比较。 在溢流装置中将节点存储为低值（S130）。 在Floodmax步骤中存储的洪泛值和Floodmin步骤中保存的值之间确定相同值的存在（S150）。 集群头被设置为特定节点的簇头（S180）。

公开(公告)号：KR1020100018821A

公开(公告)日：2010-02-18

申请号：KR1020080077502

申请日：2008-08-07

Applicant: 성균관대학교산학협력단

Inventor： 추현승 ,  이재형 ,  이진희 ,  전현재

IPC: G11B27/10

CPC classification number: G09F21/04 ,  G09F19/22 ,  H04L29/06176

Abstract: PURPOSE: A mobile multi-media reproduction system in subway in which a speed measuring unit and a screen display synchronizer are combined is provided to synchronize the reproduction speed of a display unit installed on a window in the subway vehicle with the speed of the subway vehicle. CONSTITUTION: A speed measuring unit(10) measures the speed of a subway vehicle. A screen display synchronizer(30) synchronizes the reproduction speed of image and the speed of the subway vehicle detected by the speed measuring unit. A display unit(40) is arranged on a window in the subway vehicle and displays the image synchronized in the screen display synchronizer. An integrated contents management unit(50) provides images to be reproduced.

Abstract translation: 目的：提供一种地铁中的速度测量单元和屏幕显示同步器组合的移动多媒体再现系统，以使安装在地铁车窗上的显示单元的再现速度与地铁车辆的速度同步 。 规定：速度测量单元（10）测量地铁车辆的速度。 屏幕显示同步器（30）使图像的再现速度和由速度测量单元检测到的地铁车辆的速度同步。 显示单元（40）布置在地铁车辆的窗口上并显示在屏幕显示同步器中同步的图像。 集成内容管理单元（50）提供要再现的图像。

公开(公告)号：KR1020090090871A

公开(公告)日：2009-08-26

申请号：KR1020080016401

申请日：2008-02-22

Applicant: 성균관대학교산학협력단

Inventor： 이진주 ,  정민영 ,  이태진 ,  추현승

IPC: H04L12/24 ,  H04B7/26 ,  H04L29/02

CPC classification number: H04L45/302 ,  H04L45/00 ,  H04L45/125

Abstract: A link state update system and a control method thereof which efficiently calculates QoS guaranteed route are provided to sense a varied link state and update the link state update. A router unit(300) calculates a QoS guaranteed route satisfying the bandwidth according to a guarantee path setup request. The router sets up the QoS guaranteed route according to whether the route of being calculated exists in the database. A link management unit(500) changes the link status information of the QoS guaranteed route. The link manage changes link according to the QoS guaranteed route of being set up by using the changed link status information. In case the predetermined link information update threshold value is actually greater than one among the available bandwidth of the QoS guaranteed route and the available bandwidth, a database management system(700) renews database by using the changed link status information.

Abstract translation: 提供了有效地计算QoS保证路由的链路状态更新系统及其控制方法，用于感测变化的链路状态并更新链路状态更新。 路由器单元（300）根据保证路径设置请求计算满足带宽的QoS保证路由。 路由器根据数据库中存在的路由是否建立QoS保证路由。 链路管理单元（500）改变QoS保证路由的链路状态信息。 链路通过使用变更后的链路状态信息根据正在建立的QoS保证路由管理变更链路。 在预定链路信息更新阈值实际上大于QoS保证路由的可用带宽和可用带宽之一的情况下，数据库管理系统（700）通过使用改变的链路状态信息来更新数据库。

公开(公告)号：KR1020090090461A

公开(公告)日：2009-08-26

申请号：KR1020080015679

申请日：2008-02-21

Applicant: 삼성전자주식회사 ,  성균관대학교산학협력단

Inventor： 권대형 ,  김선기 ,  문강영 ,  추현승 ,  샤코브블라디미르블라디미로브

IPC: H04L12/28

CPC classification number: H04W52/0219 ,  G05B2219/25291 ,  H04W52/0277 ,  Y02D70/00

Abstract: A method for expanding lifetime of a sensor node in a wireless sensor network and a system therefor are provided to determine total sleeping time of each sensor in consideration of connectivity of a network, thereby expanding lifetime of a sensor while maintaining desired network reliability. A reliability value guaranteeing network connectivity is set according to connection significance of a network(430). Operation probability of the sensor node is calculated(440). If the operation probability is larger than the set reliability value, total sleeping time with the minimized operation probability is calculated(460). The operation probability of the sensor node is a value dividing a power amount of the sensor node by sum of the total sleeping time and the power amount of the sensor node. Connection significance of the network is transmission significance of data delivered in a network.

Abstract translation: 提供了一种用于扩展无线传感器网络中的传感器节点的寿命的方法及其系统，以便考虑到网络的连通性来确定每个传感器的总睡眠时间，从而在保持期望的网络可靠性的同时延长传感器的寿命。 根据网络的连接重要性设置保证网络连通性的可靠性值（430）。 计算传感器节点的运行概率（440）。 如果操作概率大于设定的可靠性值，则计算具有最小运算概率的总睡眠时间（460）。 传感器节点的操作概率是将传感器节点的功率量除以总睡眠时间与传感器节点的功率量之和的值。 网络的连接意义是网络中传送的数据的传输意义。

公开(公告)号：KR1020090076579A

公开(公告)日：2009-07-13

申请号：KR1020080002607

申请日：2008-01-09

Applicant: 성균관대학교산학협력단

Inventor： 이혜경 ,  정민영 ,  이태진 ,  추현승

IPC: H04B10/27 ,  H04B10/2581

CPC classification number: H04J14/0282 ,  H04J14/0227 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04L12/42 ,  H04Q11/0067 ,  H04Q2011/0064

Abstract: An upstream transmission band allocation method in a WDM(Wavelength Division Multiplexing)-based EPON(Ethernet Passive Optical Network) is provided to enable efficient band allocation by managing ONUs(Optical Network Units) by group, and to prevent unused channel sections from being generated. ONUs to be allocated to each of m wavelength channels are grouped(S1). So that the grouped ONUs use efficiently allocated wavelengths and time slots, dynamic band allocation algorithm is carried out to allocate each channel. The m wavelength channels are synchronized with one period. The one period is set based on a maximum permissible period. The m wavelength channels are synchronized with sub periods created by dividing the one period into m periods. The overall ONUs are grouped into m+1. The grouped ONUs start to transmit upstream frames at starting time of the synchronized period and sub periods.

Abstract translation: 提供了基于WDM（波分复用）​​的EPON（以太网无源光网络）中的上行传输频带分配方法，以通过按组管理ONU（光网络单元）来实现有效的频带分配，并且防止产生未使用的信道部分 。 分配给m个波长信道中的每一个的ONU被分组（S1）。 为了使分组的ONU使用有效分配的波长和时隙，执行动态频带分配算法来分配每个信道。 m个波长信道与一个周期同步。 一个时期是根据最大允许周期设定的。 m个波长信道与通过将一个周期分成m个周期而创建的子周期同步。 整个ONU分为m + 1。 组合的ONU在同步周期和子周期的开始时间开始发送上行帧。