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公开(公告)号：KR1020130021972A
公开(公告)日：2013-03-06
申请号：KR1020110084579
申请日：2011-08-24
Applicant: 목포대학교산학협력단
IPC: H04B7/04
CPC classification number: H04B7/0413 , H03M13/1102 , H03M13/1125
Abstract: PURPOSE: A log-likelihood ratio(LLR) estimation method in a multi-input multi-output(MIMO) channel is provided to separate a soft-decision bit without performance degradation by using a candidate vector. CONSTITUTION: A mapping point is selected as a candidate vector. The mapping point is located within a predetermined range based on I-ch and Q-ch values of receiving signals among mapping points estimated in a receiving end. Log-likelihood computation is performed by using the selected candidate vector. The log-likelihood computation is performed by reflecting the number of transmitting antennas, the number of receiving antennas, and a modulation method for dividing the receiving signals into data of the number of transmitting antennas. [Reference numerals] (AA) Selected four candidate vectors with the same sign as that of a receiving signal; (BB) Receiving signal
Abstract translation: 目的：提供多输入多输出（MIMO）信道中的对数似然比（LLR）估计方法，以通过使用候选向量来分离软判决比特而不降低性能。 构成：选择一个映射点作为候选向量。 基于在接收端估计的映射点之间的接收信号的I-ch和Q-ch值，映射点位于预定范围内。 通过使用选择的候选向量来执行对数似然计算。 通过将发送天线的数量，接收天线的数量和用于将接收信号分割为发送天线数的数据的调制方法进行对数似然计算。 （附图标记）（AA）选择与接收信号具有相同符号的四个候选向量; （BB）接收信号
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公开(公告)号：KR1020130019907A
公开(公告)日：2013-02-27
申请号：KR1020110082212
申请日：2011-08-18
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A cluster head selecting method within a sensor network is provided to select a cluster head by using the location information of sensor nodes. CONSTITUTION: A sensor network system determines a center position of a sensor network by using positions of all sensor nodes in an initial data transmission period(S210). The sensor network system divides areas of the sensor network by using the center position(S220). The sensor network system detects a sensor node which includes a minimum distance value between the sensor nodes(S230). The sensor network system selects the detected sensor node as a cluster head. [Reference numerals] (AA) Start; (BB) End; (S210) Determining the center position of a sensor network by using position information of all sensor nodes; (S220) Dividing the sensor network into preset numbers by using the center position; (S230) Selecting a sensor node which includes the minimum sum of distances between sensor nodes in each area as a cluster head; (S240) Receiving data from a sink node; (S250) Selecting a cluster head among sensor nodes which are never been selected as a cluster head
Abstract translation: 目的：提供传感器网络内的簇头选择方法，通过使用传感器节点的位置信息来选择簇头。 规定：传感器网络系统通过在初始数据传输周期中使用所有传感器节点的位置来确定传感器网络的中心位置（S210）。 传感器网络系统通过使用中心位置来分割传感器网络的区域（S220）。 传感器网络系统检测传感器节点，传感器节点包括传感器节点之间的最小距离值（S230）。 传感器网络系统选择检测到的传感器节点作为簇头。 （附图标记）（AA）开始; （BB）结束; （S210）通过使用所有传感器节点的位置信息确定传感器网络的中心位置; （S220）使用中心位置将传感器网络分为预设号码; （S230）选择传感器节点，其包括每个区域中的传感器节点之间的距离的最小值作为簇头; （S240）从汇聚节点接收数据; （S250）从未被选择为簇头的传感器节点中选择簇头
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公开(公告)号：KR1020130011358A
公开(公告)日：2013-01-30
申请号：KR1020110072459
申请日：2011-07-21
Applicant: 목포대학교산학협력단
CPC classification number: Y02D70/00 , H04W52/0261 , H04W56/00 , H04W84/18
Abstract: PURPOSE: A method for improving the delay time performance improvement and energy efficiency of asynchronous duty-cycle MAC in a vessel sensor network environment is provided to improve a transmission delay time by performing a temporary synchronization method while maintaining the energy efficiency of asynchronous MAC. CONSTITUTION: Energy efficiency is maintained through an SNC(Synchronize on each Neighbor's Cycle) and an STC(Synchronize on Tunneling Cycle) function by using a cross layer method with a network layer. A transmission delay time is improved by performing a temporary synchronization method while maintaining the energy efficiency. QoS(Quality of Service) on a multi hop path is guaranteed.
Abstract translation: 目的：提供一种在船舶传感器网络环境中改进异步占空比MAC的延迟时间性能改进和能效的方法，通过执行临时同步方法来提高传输延迟时间，同时保持异步MAC的能量效率。 构成：通过使用具有网络层的交叉层方法，通过SNC（在每个邻居周期上同步）和STC（隧道周期同步）功能来维持能量效率。 通过在保持能量效率的同时执行临时同步方法来提高传输延迟时间。 多跳路径上的QoS（服务质量）得到保证。
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公开(公告)号：KR1020120139002A
公开(公告)日：2012-12-27
申请号：KR1020110058499
申请日：2011-06-16
Applicant: 목포대학교산학협력단
CPC classification number: H04B7/2606 , H04L2001/0097 , H04W84/047 , H04W88/04
Abstract: PURPOSE: A physical layer based relay cooperative communication method for an MAC(media access control) protocol based ship building distribution system is provided to stably transmit information within a distribution system by providing an authenticated standard for communication between the RFID(radio frequency identification) reader nodes. CONSTITUTION: A relay request reservation detail state code, a relay notification reservation detail state code, and a relay approval reservation detail state code are designated. The relay request reservation detail state code is transmitted for enabling a reservation subject node to request a DRP(distributed reservation protocol) to a relay node. The relay notification reservation detail state code is used for enabling the reservation subject node to notify the relay transmission of data to a reservation target node. A relay transmission process is executed when the relay node and the reservation target node transmit the relay approval reservation state code.
Abstract translation: 目的：提供基于MAC（媒体访问控制）协议的船舶建造分配系统的基于物理层的中继协作通信方法，通过提供RFID（射频识别）阅读器之间的通信的认证标准来稳定地在分发系统内传输信息 节点。 规定：指定中继请求预约详细状态码，中继通知预约详细状态码和中继许可预约详细状态码。 发送中继请求预约详细状态码以使预约主体节点向中继节点请求DRP（分布式预留协议）。 中继通知预约详细状态码用于使预约主体节点通知中继向预约目标节点发送数据。 当中继节点和预留目标节点发送中继许可预约状态码时，执行中继发送处理。
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公开(公告)号：KR1020120138128A
公开(公告)日：2012-12-24
申请号：KR1020110057453
申请日：2011-06-14
Applicant: 목포대학교산학협력단
CPC classification number: Y02B20/42 , H05B33/0857 , B63B45/00 , F21S4/28 , F21Y2101/00 , H05B33/0818
Abstract: PURPOSE: A sensitive lighting method of aids to navigation facility by LED is provided to prevent safety accidents in a ship by providing differentiated sensitive lighting using a 3 colors LED. CONSTITUTION: Aids to navigation facilities is installed at a coast or a harbor. The aids to navigation facilities provide passage identifiable information to a navigator by light. The aids to navigation facilities are composed of RGB LEDs. The RGB LED expresses the color and brightness of various light. [Reference numerals] (AA) Wide; (BB) Bright; (CC) Medium; (DD) Average; (EE) Narrow; (FF) Dark
Abstract translation: 目的：提供LED导航设备辅助的敏感照明方法，通过提供使用3色LED的差异敏感照明来防止船舶安全事故。 规定：在海岸或港口安装辅助导航设施。 导航设施的辅助工具通过光线向导航员提供通道可识别信息。 导航设施的辅助工具由RGB LED组成。 RGB LED表示各种颜色和亮度。 （标号）（AA）宽; （BB）光明; （CC）中等; （DD）平均; （EE）窄 （FF）黑暗
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Patent Agency Ranking
公开(公告)号：KR101145398B1
公开(公告)日：2012-05-21
申请号：KR1020090100909
申请日：2009-10-22
Applicant: 목포대학교산학협력단
Abstract: 본 발명은 조난신호 발사 장치 및 그 제어 방법에 대하여 개시한다. 본 발명의 일면에 따른 조난신호 발사 장치는, 실린더 형태로 구성되어 내부공간을 가지는 제1 하우징; 일면은 선박에 고정되며, 상기 내부공간에 끼워지는 형상으로 구성된 타면을 상기 내부공간에 끼워 일정장력 미만의 장력에서 상기 내부공간 중 일부를 진공으로 만드는 제2 하우징; 및 조난의 발생에 따라 일정장력 이상의 장력이 인가되면 상기 제1 하우징과 함께 상기 제2 하우징으로부터 분리되며, 상기 분리에 따라 상기 내부공간에 해수가 유입된 것을 감지하면 조난신호를 송출하는 조난통신기를 포함하는 것을 특징으로 한다.
조난신호, 조난구조, EPIRB, 조난비컨, Emergency Position Indicating Radio Beacon-
公开(公告)号：KR1020120047656A
公开(公告)日：2012-05-14
申请号：KR1020100109346
申请日：2010-11-04
Applicant: 목포대학교산학협력단
CPC classification number: G06F17/30159 , G06F9/461 , G06F17/30445 , Y10S707/99932
Abstract: PURPOSE: A ship data management system is provided to manage multi-dimensional stream data through a hash table and to increase data process speed. CONSTITUTION: A classifying unit(230) clusters state information. The classifying unit converts the state information into an information summary. The classifying unit stores the converted information summary in database. A hash table(240) calculates a record order through a record value of the summary information within database. The hash table stores a storing address of the summary information within database.
Abstract translation: 目的：提供船舶数据管理系统，通过散列表管理多维流数据，并提高数据处理速度。 构成：分类单元（230）聚集状态信息。 分类单元将状态信息转换为信息摘要。 分类单元将转换的信息摘要存储在数据库中。 散列表（240）通过数据库内的摘要信息的记录值计算记录顺序。 散列表存储数据库内的摘要信息的存储地址。
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公开(公告)号：KR1020120044703A
公开(公告)日：2012-05-08
申请号：KR1020100106143
申请日：2010-10-28
Applicant: 목포대학교산학협력단
Abstract: PURPOSE: A wireless sensor and order type routing method of an actor network are provided to enable a user to use energy effective routing method by assuring delaying time which is requested for an application program. CONSTITUTION: Respective sensors transmit location information and energy state to a base node(S110). The base node creates a graph by using the collected information. The base node creates a pareto group by using an pareto stratum-niche cubicle genetic algorithm(S120). The base node transmits the created pareto group to all sensors(S130). A routing tree is selected according to the property of an application program. A packet is transmitted and received between the base node and sensors(S140).
Abstract translation: 目的：提供演员网络的无线传感器和订单类型路由方法，以使用户能够通过确保为应用程序请求的延迟时间来使用能量有效的路由方法。 构成：各传感器将位置信息和能量状态发送到基本节点（S110）。 基础节点通过使用收集的信息创建一个图。 基础节点通过使用帕累托分层小区遗传算法创建帕累托组（S120）。 基本节点将所创建的帕累托组发送到所有传感器（S130）。 根据应用程序的属性选择路由树。 在基本节点和传感器之间传送和接收分组（S140）。
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公开(公告)号：KR101093152B1
公开(公告)日：2011-12-12
申请号：KR1020100091900
申请日：2010-09-17
Applicant: 목포대학교산학협력단
IPC: H04B7/08
CPC classification number: H04B7/0817 , H04B7/0845
Abstract: PURPOSE: A frequency detection method for recognition wireless communication is provided to stably perform frequency detection even though a noise environment is changed. CONSTITUTION: The output of a detector is obtained from a receiving antenna. A frequency is detected by combining the obtained L detector output. If the frequency detection method is a PRO(i1-iM), the detection probability of PRO(i,k) is obtained through a predetermined equation.
Abstract translation: 目的：提供用于识别无线通信的频率检测方法，以便即使改变噪声环境来稳定地执行频率检测。 构成：从接收天线获得检测器的输出。 通过组合获得的L检测器输出来检测频率。 如果频率检测方法是PRO（i1-iM），则通过预定方程获得PRO（i，k）的检测概率。
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公开(公告)号：KR1020110114998A
公开(公告)日：2011-10-20
申请号：KR1020100034429
申请日：2010-04-14
Applicant: 목포대학교산학협력단
IPC: H04L12/28
Abstract: 본 발명은 애드-혹 네트워크 경로 설정 방법에 관한 것으로서, 소스 노드에서 RREQ(Route Request) 메시지를 플러딩하여 목적지 노드까지의 경로를 찾는 데 있어서, 소스 노드는 소스 노드로 전송된 신호의 강도 및 목적지 노드의 최소 에너지량을 이용한 타임아웃시간을 설정하는 단계, 소스 노드는 타임아웃시간 이내에 목적지 노드로부터 역 경로를 따라 RREP(Route Response) 메시지를 전송받는 단계 및 소스 노드는 타임아웃시간 이내에 RREP 메시지를 수신하지 못하는 경우, 경로 탐색을 중단하는 단계를 포함한다.
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