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公开(公告)号：KR101527082B1
公开(公告)日：2015-06-10
申请号：KR1020140179494
申请日：2014-12-12
Applicant: 한국해양과학기술원
IPC: H04L12/70 , H04L12/861
Abstract: 본발명은선박국용 CS-TDMA 기반의수신패킷처리방법에관한것이다. 본발명에따른선박국용 CS-TDMA 기반의수신패킷처리방법은, a) 선박국의무선통신시스템의제어부에의해데이터패킷수신에따른인터럽트(interrupt) 신호를수신하면 DPRAM(Dual-ported RAM)을 '읽기'하여, 수신패킷이 MAC(Media Access Control) 프레임모드인지를판별하는단계; b) 수신패킷이 MAC 프레임모드이면, 이웃선박국테이블(NS_table)을업데이트하고, MAC 프레임의종류를체크하는단계; c) 체크에의한 MAC 프레임의종류에따라데이터패킷처리, 비컨 (beacon) 패킷처리, '릴리스(release)' 패킷또는 'Info' 패킷처리를수행하는단계; 및 d) 상기단계 a)의판별에서수신패킷이 MAC 프레임모드가아니면, 수신패킷을상향물리계층제어메시지로인식하고, 상향물리계층제어메시지를처리하는단계를포함한다. 이와같은본 발명에의하면, CS-TDMA(Carrier Sense Time Division Multiple Access) 방식의선박국용무선통신애드혹네트워크에있어서수신패킷처리에적합하도록수신패킷처리알고리즘을구성함으로써, 선박국용무선통신에있어서의수신패킷을원활하게처리할수 있다.
Abstract translation: 本发明涉及一种用于处理基于用于船舶电台的CS-TDMA的接收分组的方法。 本发明的方法包括以下步骤：a）根据数据包，当接收到中断信号时，通过读取双端口RAM（DPRAM）来确定接收包是否是媒体接入控制（MAC）帧模式 由船舶无线通信系统的控制单元接收; b）当接收分组是MAC帧模式时，更新相邻船舶台表（NS_table）并检查一种MAC帧; c）根据MAC帧的类型通过支票执行数据分组处理，信标分组处理，释放分组或“信息”分组处理; 以及d）将所述接收分组识别为上层物理层的控制消息，并且如果所述接收分组不是来自步骤a）中的确定的MAC帧模式，则将其处理。 根据本发明，该方法能够通过将用于船舶电台的无线通信的自组织网络中的接收分组配置为适合于处理接收分组的接收分组处理算法，来实现船舶的无线通信的接收分组的平滑处理 在载波侦听时分多址（CS-TDMA）方式。
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公开(公告)号：KR1020150049270A
公开(公告)日：2015-05-08
申请号：KR1020130129578
申请日：2013-10-29
Applicant: 한국해양과학기술원
CPC classification number: G06Q50/26
Abstract: 본발명은불법조업선박감시시스템에관한것으로서, 불법조업을감시하는감시선에탑재되어조업선박에조업허가정보를포함한선박정보를요청하는방송을수행하고, 방송에응답하는응답신호를수신하여조업선박의조업허가여부를처리하는조업인증처리유니트와, 조업인증처리유니트에접속되어있으며조업허가등록정보가기록된데이터베이스와조업선박에설치되어조업인증처리유니트와무선통신을수행하며조업인증처리유니트의조업허가정보를포함한선박정보를요청하는방송에응답하는응답신호를송출하는단말통신기를구비한다. 이러한불법조업선박감시시스템에의하면, 조업허가유무에대한정보를감시선에서조업선박에대해원격으로확인할수 있어불법조업선박에대처를보다효율적으로수행할수 있는장점을제공한다.
Abstract translation: 本发明涉及一种监测非法渔船的系统。 本发明包括以下单元：钓鱼授权处理单元，安装在监视船上，该监视船广播请求包括钓鱼授权的船只信息的消息，并且通过接收回复信号来调查船舶是否被授权在给定区域钓鱼; 附加在钓鱼授权处理单元上的数据库，并存储钓鱼许可信息; 以及安装在所述监视船上的通信终端，所述通信终端处理与所述钓鱼授权处理单元的通信，并且响应于所述请求包括从所述钓鱼授权处理单元进行的钓鱼授权广播的船只信息的消息来发送回复信号。 根据目前监测非法渔船的制度，监测船舶可以远程查获许可信息，提高非法渔船监管工作的效率。
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公开(公告)号：KR101473360B1
公开(公告)日：2014-12-17
申请号：KR1020140065213
申请日：2014-05-29
Applicant: 한국해양과학기술원
IPC: H04B7/212
Abstract: 본 발명은 2세대 모뎀용 매체접속제어 통신 프로토콜 선택방법에 관한 것이다.
본 발명에 따른 2세대 모뎀용 매체접속제어 통신 프로토콜 선택방법은, a)임의의 선박국에 의해 해상 통신에서 사용되는 규정된 주파수 범위대의 두 개의 주파수 f1, f2 중 일측의 주파수를 스캐닝하여 신호가 검출되는지의 여부를 판별하는 단계; b)상기 판별에서 신호가 검출되면, 상기 두 개의 주파수 f1, f2 중 타측의 주파수를 스캐닝하여 신호가 검출되는지의 여부를 판별하는 단계; c)상기 단계 b)의 판별에서의 신호 검출 여부에 따라, 매체접속제어를 선택하기 위해 싱글홉 모드 또는 멀티홉 모드의 통신 네트워크를 설정하는 단계; 및 d) 상기 설정된 싱글홉 모드 또는 멀티홉 모드에 따라 CS-TDMA 또는 EASO-TDMA의 매체접속제어 프로토콜을 선택하는 단계를 포함한다.
이와 같은 본 발명에 의하면, 주어진 물리적 제원에서 싱글-홉(single-hop) 모드와 멀티-홉(multi-hop) 모드 중 어느 하나의 모드를 육상국과 선박국, 선박국과 선박국 간에 설정하고, 그를 바탕으로 대응하는 매체접속제어 프로토콜을 적절히 적용함으로써 해상통신을 원활하게 수행할 수 있다.Abstract translation: 本发明涉及一种用于选择第二代调制解调器的媒体接入控制（MAC）通信协议的方法，包括以下步骤：a）通过以下步骤扫描海上通信中使用的定义频率范围的两个频率f1和f2中的一个： 确定是否检测到信号; b）当根据该确定检测到信号时，扫描两个频率f1和f2中的另一个频率，并确定是否检测到信号; c）建立单跳模式或多跳模式通信网络，以根据（b）的确定是否检测到信号来选择MAC; 以及d）根据建立的单跳或多跳模式选择CS-TDMA或EASO-TDMA的MAC协议。 根据本发明，在给定的物理规范中，在地面站和船舶站之间或船舶站之间建立单跳模式和多跳模式中的任何一种模式，由此适当地应用相应的MAC协议，从而 顺利执行海上通信。
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公开(公告)号：KR101394217B1
公开(公告)日：2014-05-27
申请号：KR1020130162069
申请日：2013-12-24
Applicant: 한국해양과학기술원
Abstract: The present invention relates to a medium access control method with an enhanced ad-hoc self-organizing time division multiple access method for a base station, more particularly, to a medium access control method with an enhanced ad-hoc self-organizing time division multiple access method designed with an enhanced ad-hoc self-organizing time division multiple access (EASO-TDMA) communication method which is to improve the disadvantage of a communication method due to an ad-hoc self-organizing time division multiple access (ASO-TDMA) which is previously used and is to more practically correspond to environment change of marine communication.
Abstract translation: 本发明涉及一种具有用于基站的增强的自组织时分多址方法的媒体接入控制方法，更具体地说，涉及一种具有增强的自组织时间分多址的媒体接入控制方法 通过增强的自组织时分多址（EASO-TDMA）通信方式设计的接入方法，其改善由于自组织时分多址（ASO-TDMA）而导致的通信方法的缺点 ），其更加实际上对应于海洋通信的环境变化。
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公开(公告)号：KR101360794B1
公开(公告)日：2014-02-12
申请号：KR1020130075586
申请日：2013-06-28
Applicant: 한국해양과학기술원
Abstract: The present invention relates to an underwater data link protocol and to a time division multiple access medium connection control protocol for an underwater long range network capable of increasing communication efficiency through the transmission and reception between a bus bar and a cluster header using a signal of a packet train type. The division multiple access medium connection control protocol can increase energy efficiency using a sleep mode. To achieve this, the present invention comprises; an initial stage (A) in which a bus bar sets an initial communication path; a normal stage (B) in which multiple cluster heads communicate with the bus bar through the communication path; and a termination stage (C) in which the bus bar and the multiple cluster head finish the communication. The communication transmits and receives a packet of a packet train type for transmitting the packet at a time with a time division multiple access (TDMA) method.
Abstract translation: 本发明涉及一种水下数据链路协议和一种用于水下长距离网络的时分多址介质连接控制协议，能够通过使用信号的信号在总线和集群报头之间的发送和接收来提高通信效率 分组列车类型。 分区多址介质连接控制协议可以使用睡眠模式提高能量效率。 为了实现这一点，本发明包括： 母线设置初始通信路径的初始阶段（A）; 正常阶段（B），其中多个集群头通过通信路径与汇流条通信; 以及终端级（C），其中母线和多簇头完成通信。 该通信以时分多址（TDMA）方式一次发送和接收用于发送分组的分组列类型的分组。
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Patent Agency Ranking36.发明授权자기간섭을 허용하는 네트워크 부호화를 통하여 다중 사용자 다중 입출력 셀룰러 통신시스템의 통신용량을 증대시키기 위한 양방향 중계 통신방법 有权用于改善使用具有自干扰的网络编码的多媒体多输入多输出蜂窝通信系统的通信容量的两路中继通信方法
公开(公告)号：KR101354137B1
公开(公告)日：2014-01-27
申请号：KR1020130027264
申请日：2013-03-14
Applicant: 한국해양과학기술원
CPC classification number: H04B7/15528 , H04B7/0452 , H04B7/0456
Abstract: The present invention relates to a method for effectively improving communication capacity of a multiuser multi-input multi-output cellular communication system which allows two-way relay, according to the present invention, effectively improves a communication capacity in an cellular communication system by enabling network coding which is unknown in an existing cellular communication system which comprises a plurality of communication terminal nodes having one base station having a plurality of transmission/reception antennae, one relay node and one transmission/reception antenna and enabling network coding through self-interference. [Reference numerals] (S21) Selecting N user terminal nodes corresponding to a smaller number between N_B and N_V; (S22) Generating a channel matrix from base station node to relay node and a channel matrix from user terminal node to relay node; (S23) Generating each encoding matrix showing a codeword vector to be transmitted from the base station to the k^th user terminal node and a codeword vector to be transmitted from the k^th user terminal node to the base station through horizontal encoding of the user terminal nodes; (S24) Generating a transmission signal of the base station node through linear line-encoding using SVD of a channel matrix from the base station node to the relay node; (S25) Generating a transmission signal of the user terminal node; (S26) Generating a reception signal received in the relay node based on each transmission signal; (S27) Decoding the reception signal using a horizontal sequential interference cancellation method; (S28) Transmitting the decoded signal to each base station and user terminal in the relay node, selecting and receiving the signal which is transmitted to its own in the base station and user terminal
Abstract translation: 本发明涉及一种有效提高多用户多输入多输出蜂窝通信系统的通信能力的方法，该多用户多输入多输出蜂窝通信系统允许双向中继，根据本发明，通过启用网络有效地提高了蜂窝通信系统中的通信容量 编码在现有的蜂窝通信系统中是未知的，其包括具有一个具有多个发送/接收天线的基站的多个通信终端节点，一个中继节点和一个发送/接收天线，并且通过自身干扰启用网络编码。 （S21）选择与N_B和N_V之间的较小数目对应的N个用户终端节点; （S22）从基站节点向中继节点生成信道矩阵，从用户终端节点向中继节点生成信道矩阵; （S23）生成表示要从基站发送到第k个用户终端节点的码字矢量的每个编码矩阵，以及要从第k个用户终端节点向基站发送的码字矢量，通过水印编码 用户终端节点; （S24）使用从基站节点到中继节点的信道矩阵的SVD通过线性编码生成基站节点的发送信号; （S25）生成用户终端节点的发送信号; （S26）基于各发送信号生成在所述中继节点中接收的接收信号; （S27）使用水平顺序干扰消除方法对接收信号进行解码; （S28）将解码信号发送到中继节点中的每个基站和用户终端，选择和接收在基站和用户终端中发送给自身的信号
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公开(公告)号：KR101352443B1
公开(公告)日：2014-01-20
申请号：KR1020130146261
申请日：2013-11-28
Applicant: 한국해양과학기술원
Abstract: The present invention relates to a time division multiple access type medium access control method for a ship station in maritime communications and, to a time division multiple access type medium access control method designed with an enhanced ad-hoc self-organizing time division multiple access (EASO-TDMA) capable of responding to the environment change of the maritime communications and capable of solving the weak points of an ad-hoc self-organizing time division multiple access (ASO-TDMA). [Reference numerals] (AA) Start; (BB) End; (S1) Time frame synchronization level = 1; (S12,S16) Time slot release; (S17) End or Continue?; (S3) Does a neighboring ship station exist or not exist?; (S4,S8) Does a path exist or not exist?; (S9) Path table update
Abstract translation: 本发明涉及一种用于海事通信中的船舶站的时分多址型媒体访问控制方法，并且涉及一种以增强的自组织时分多址（ EASO-TDMA），能够响应海上通信的环境变化，并且能够解决自组织自组织时分多址（ASO-TDMA）的弱点。 （附图标记）（AA）开始; （BB）结束; （S1）时帧同步等级= 1; （S12，S16）时隙释放; （S17）结束还是继续？ （S3）相邻船舶站是否存在？ （S4，S8）路径是否存在？ （S9）路径表更新
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公开(公告)号：KR1020130106582A
公开(公告)日：2013-09-30
申请号：KR1020120028234
申请日：2012-03-20
Applicant: 한국해양과학기술원
Abstract: PURPOSE: A method for communications of a marine moving body ad hoc network and a node thereof are provided to perform routing and medium access control (MAC) in one algorithm in consideration of a marine communications environment. CONSTITUTION: A communications mode setting part (100) sets up a communications mode for transmitting and receiving a message based on whether there is the other node around a node or not and an available channel situation of the node. A communications control setting part (200) comprises a communications activation part and a communications deactivation part. The communications control setting part performs set-up for transmitting and receiving the message based on reception target information included in the message and the type of the message. A message transceiver (300) transmits and receives the message according to the set communications mode and communications control set-up. [Reference numerals] (100) Communications mode setting part; (110) Carrier wave detecting unit; (130) Node identifier data storing unit; (150) Transceiving mode setting unit; (200) Communications control setting part; (210,230) Communication activating unit; (300) Message transceiver
Abstract translation: 目的：提供海洋移动体自组织网络及其节点的通信方法，以考虑海洋通信环境，在一种算法中执行路由和介质访问控制（MAC）。 构成：通信模式设置部分（100）基于节点周围是否存在节点的可用信道状况，建立用于发送和接收消息的通信模式。 通信控制设置部分（200）包括通信激活部分和通信停用部分。 通信控制设置部分基于消息中包括的接收目标信息和消息的类型执行用于发送和接收消息的设置。 消息收发器（300）根据设置的通信模式和通信控制设置发送和接收消息。 （附图标记）（100）通信模式设定部; （110）载波检测单元; （130）节点标识符数据存储单元; （150）收发模式设定单元; （200）通讯控制设定部分; （210,230）通信激活单元; （300）消息收发器
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公开(公告)号：KR1020130053944A
公开(公告)日：2013-05-24
申请号：KR1020110119666
申请日：2011-11-16
Applicant: 한국해양과학기술원
CPC classification number: Y02A90/36
Abstract: PURPOSE: An underwater supersonic camera for a precise underwater survey and an operation method thereof are provided to use low frequency and high frequency in the underwater survey in order to supplement shortcomings and add-on the advantages. CONSTITUTION: An underwater supersonic camera for a precise underwater survey which has two operating frequencies is comprised of the followings: a high frequency generator(21) generating an electricity signal; a high frequency power amplifier(22) amplifying the electric power of the electricity signal; a high frequency sending sound transducer(23) which generates a high frequency sound wave by using the amplified electricity signal; a high frequency receiving sound transducer(24) receiving the high frequency sound wave which has been being reflected by underwater object and generates the electricity signal; a high frequency low noise amplifier(25) amplifying a weak electricity signal; a high frequency low noise amplifier which selects and filters only the high frequency area in which will be provided to a high frequency signal collector(28) among the electricity signal; a high frequency time-variable amplifier(27) which changes an amplification ratio according to time in order to make the amplification ratio of a short distance signal small and the amplification ratio of a long distance signal huge; the high frequency signal collector forming the data in which is able to be processed by sampling the electric signal; a signal processor(30) performing the beam forming process by using the collected data; and an ultrasonic image display apparatus(40) displaying the ultrasonic image. [Reference numerals] (11) Low frequency signal generator; (12) Low frequency power amplifier; (13) Low frequency sending transducer; (14) Low frequency receiving transducer; (15) Low frequency low noise filter; (16) Low frequency band pass filter; (17) Low frequency time-variable amplifier; (18) Low frequency signal collector; (22) High frequency power amplifier; (23) High frequency sending transducer; (24) High frequency receiving transducer; (25) High frequency low noise amplifier; (26) High frequency band pass filter; (27) High frequency time-variable amplifier; (28) High frequency signal collector; (30) Signal processor; (40) Ultrasonic image display apparatus; (AA) High frequency signal generator
Abstract translation: 目的：提供一种用于精确水下测量的水下超音速摄像机及其操作方法，以便在水下测量中使用低频和高频，以补充缺点并增加其优点。 构成：具有两个工作频率的精确水下测量的水下超音速摄像机包括：产生电信号的高频发生器（21） 放大电力信号的电力的高频功率放大器（22）; 通过使用放大电信号产生高频声波的高频发送声音传感器（23）; 接收已经被水中物体反射的高频声波的高频接收声音传感器（24）并产生电信号; 放大弱电信号的高频低噪声放大器（25）; 高频低噪声放大器，其仅选择和滤除将在电信号中提供给高频信号收集器（28）的高频区域; 为了使短距离信号的放大率小，长距离信号的放大率变大，高频时变放大器（27）根据时间改变放大率， 高频信号收集器形成能够通过对电信号进行采样来处理的数据; 信号处理器（30），通过使用所收集的数据来执行波束形成处理; 以及显示超声波图像的超声波图像显示装置（40）。 （附图标记）（11）低频信号发生器; （12）低频功率放大器; （13）低频发送传感器; （14）低频接收传感器; （15）低频低噪声滤波器; （16）低频带通滤波器; （17）低频时变放大器; （18）低频信号采集器; （22）高频功率放大器; （23）高频发送传感器; （24）高频接收传感器; （25）高频低噪声放大器; （26）高频带通滤波器; （27）高频时变放大器; （28）高频信号采集器; （30）信号处理器; （40）超声波图像显示装置; （AA）高频信号发生器
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公开(公告)号：KR1020130039272A
公开(公告)日：2013-04-19
申请号：KR1020110103819
申请日：2011-10-11
Applicant: 한국해양과학기술원
CPC classification number: G06F17/16
Abstract: PURPOSE: A method for calculating an one-dimensional inverse scattering coupling coefficient is provided to increase a degree of TDLP accuracy with equivalent calculation complexity without reducing a layer thickness of a dioxide process. CONSTITUTION: An one-dimensional inverse scattering coupling coefficient, expressed as a coupled mode equation about a frequency response function H(δ) or an inverse Fourier transform G(t) of the H(δ), is obtained by using the following method. The depth P and layer thickness h for an extrapolation method are determined. The lowest common multiple L of 1, 2,···, P+1 is calculated for the P. A wait factor ωm is obtained from APWP =e1. A coupling coefficient of the layer thickness and a starting point are calculated by using TDLP. The calculated value is confirmed as the coupling coefficient.
Abstract translation: 目的：提供一维反向散射耦合系数的计算方法，以提高TDLP精度，同时具有等效的计算复杂度，而不会降低二氧化碳过程的层厚度。 构成：通过使用以下方法获得表示为H（δ）的频率响应函数H（δ）或傅立叶逆变换G（t）的耦合模式方程的一维逆散射耦合系数。 确定外推法的深度P和层厚度h。 对于P计算出最小的公倍数为1，2，...，P + 1。从APWP = e1获得等待因子ωm。 通过使用TDLP计算层厚度和起始点的耦合系数。 计算值被确认为耦合系数。
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