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公开(公告)号：KR101356605B1
公开(公告)日：2014-02-04
申请号：KR1020120091304
申请日：2012-08-21
Applicant: 강릉원주대학교산학협력단
Abstract: An underwater exploration system comprises: a sensor node measuring the underwater environment under the water to generate a measurement data; a sink node receiving the measurement data using an ultrasonic communication system from the sensor node under the water; a gateway located above the water surface for receiving the measurement data using the ultrasonic communication system and transmitting the measurement data to a base station using a radio wave communication system. The sink node is located under the water within the distance where the ultrasonic communication is available with the gateway and the sensor node is located under the water therein with the sink node. [Reference numerals] (110) Sensor node; (120) Sink node; (130) Gateway
Abstract translation: 水下探测系统包括：传感器节点，测量水下的水下环境以产生测量数据; 汇聚节点，使用超声波通信系统从水下的传感器节点接收测量数据; 位于水面以上的网关，用于使用超声波通信系统接收测量数据，并使用无线电波通信系统将测量数据发送到基站。 汇聚节点位于与网关可用的超声波通信距离之内的水下，并且传感器节点位于水下，并具有汇聚节点。 （附图标记）（110）传感器节点; （120）接收节点; （130）网关
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公开(公告)号：KR1020130051776A
公开(公告)日：2013-05-21
申请号：KR1020110117113
申请日：2011-11-10
Applicant: 강릉원주대학교산학협력단
CPC classification number: H04L27/02
Abstract: PURPOSE: An underwater communication system and a method thereof are provided to reduce a data error rate and to reduce time required for data transmission. CONSTITUTION: A transmitting device(100) includes an input unit(110), a modulation unit(120), and a transmitting unit(130). The input unit is connected to an underwater device and receives data according to a predetermined protocol. The modulation unit generates a modulated signal according to an amplitude shift keying mode in order to transmit data. The transmitting unit outputs the modulated signal which is transmitted from the modulation unit to the underwater. A receiving device(150) includes a receiver(160), a demodulator(170), and an output unit(180). The receiver receives the modulated signal which is transmitted through the underwater and transmits the signal to the demodulator. The demodulator generates data by demodulating the modulated signal. The output unit is connected to the underwater device and transmits data according to the predetermined protocol. [Reference numerals] (110) Input unit; (120) Modulation unit; (130) Transmitting unit; (160) Receiving unit; (170) Demodulator; (180) Output unit
Abstract translation: 目的：提供一种水下通信系统及其方法，以减少数据错误率并减少数据传输所需的时间。 构成：发送装置（100）包括输入单元（110），调制单元（120）和发送单元（130）。 输入单元连接到水下设备并根据预定协议接收数据。 调制单元根据振幅键控模式生成调制信号，以便发送数据。 发送单元将从调制单元发送的调制信号输出到水下。 接收设备（150）包括接收机（160），解调器（170）和输出单元（180）。 接收机接收通过水下传输的调制信号，并将该信号发送到解调器。 解调器通过解调调制信号来产生数据。 输出单元连接到水下设备，并根据预定协议传输数据。 （附图标记）（110）输入单元; （120）调制单元; （130）发射单元; （160）接收单元; （170）解调器; （180）输出单元
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公开(公告)号：KR1020100031445A
公开(公告)日：2010-03-22
申请号：KR1020080124140
申请日：2008-12-08
Applicant: 강릉원주대학교산학협력단
CPC classification number: H04B11/00 , H04L1/0003
Abstract: PURPOSE: A communication apparatus for underwater wireless communication and a method thereof are provided to minimize signal interference due to multiple routes which can occur under water, thereby increasing efficiency of information transmission. CONSTITUTION: Modulators(220,220') generate transmission symbols including modulation fields and guard fields. Amplifiers(210,210') amplify ultrasonic signals. Ultrasonic sensors transceive the ultrasonic signals amplified using an underwater channel. Demodulators(230,230') demodulate modulated signals.
Abstract translation: 目的：提供一种用于水下无线通信的通信装置及其方法，以使由于在水下可能发生的多条路由引起的信号干扰最小化，从而提高信息传输的效率。 构成：调制器（220,220'）产生包括调制场和保护场的发射符号。 放大器（210,210'）放大超声信号。 超声波传感器收发使用水下通道放大的超声信号。 解调器（230,230'）解调调制信号。
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公开(公告)号：KR1020100003659A
公开(公告)日：2010-01-11
申请号：KR1020080063652
申请日：2008-07-01
Applicant: 강릉원주대학교산학협력단
IPC: H04L27/34
CPC classification number: H04L27/3416
Abstract: PURPOSE: A method and apparatus for mapping constellation is provided to minimize adjacent constellation point and bit error. CONSTITUTION: The constellation generator(310) generates constellation arranged as the vertex of the triangle of the lattice structure. The bit sequence mapping unit(320) uses one among optimal bit sequence mapping method or the converted bit sequence mapping method. The bit string and constellation point are mapped.
Abstract translation: 目的：提供一种用于映射星座的方法和装置，以使相邻星座点和位错误最小化。 构成：星座发生器（310）生成布置为格子结构的三角形的顶点的星座。 比特序列映射单元（320）使用最佳比特序列映射方法或转换比特序列映射方法之一。 映射位串和星座点。
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公开(公告)号：KR100932777B1
公开(公告)日：2009-12-21
申请号：KR1020080088872
申请日：2008-09-09
Applicant: 강릉원주대학교산학협력단
CPC classification number: H04L27/3411 , H04L27/3438 , H04L27/364
Abstract: PURPOSE: A method and a device for modulating a digital signal are provided to improve power efficiency of the modulation without increasing modulation symbol error probability in an odd bit quadrature amplitude modulation method. CONSTITUTION: An n bit is transmitted per a modulation symbol. The n is 2m+1 and is an odd number above 5. The m is 2 or more. A TQAM(Triangular Quadrature Amplitude Modulation) constellation arranging the 2n constellation points in an apex of a triangle(S620). The bit stream of the n bit corresponding to the constellation point is mapped(S640). In the constellation, the 1.5 x 2^m constellation points are arranged in 2^m parallel lines adjacent to the I axis on an I/Q plot signal space. The 2^m constellation points are arranged in the 2^m-1 parallel lines far away from the I axis. The 1.5 x 2^m-1 constellation points are arranged in the 2^m+1 parallel lines adjacent to the Q axis on the I/Q plot signal space. The 2^m-1 constellation points are arranged in the 2^m parallel line distant from the Q axis.
Abstract translation: 目的：提供用于调制数字信号的方法和装置，以提高调制的功率效率，而不会增加奇数位正交幅度调制方法中的调制符号误差概率。 构成：每个调制符号发送一个n位。 n为2m + 1，为5以上的奇数。m为2以上。 在三角形顶点设置2n个星座点的TQAM（三角形正交调制）星座（S620）。 对应于星座点的n位的比特流被映射（S640）。 在星座中，1.5×2 ^ m个星座点在I / Q图信号空间上与I轴相邻的2 ^ m个平行线排列。 2 ^ m个星座点排列在远离I轴的2 ^ m-1平行线上。 1.5×2 ^ m-1星座点被布置在I / Q绘图信号空间上与Q轴相邻的2 ^ m + 1个平行线中。 2 ^ m-1星座点被布置在远离Q轴的2 ^ m平行线上。
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Patent Agency Ranking
公开(公告)号：KR1020080104883A
公开(公告)日：2008-12-03
申请号：KR1020070052296
申请日：2007-05-29
Applicant: 강릉원주대학교산학협력단
IPC: H04L27/34
CPC classification number: H04L27/3411
Abstract: A method and an apparatus for mapping a bit stream in triangle constellation are provided to improve power efficiency of modulation in an orthogonal amplitude modulation method. The constellation arranged to the vertex of the adjacent regular triangles by using 2n constellation points(810). N bits are mapped by using the constellation points by using one of the optimum bit stream mapping or sub-optimum bit stream mapping(820).
Abstract translation: 提供一种用于映射三角形星座图中的比特流的方法和装置，以提高正交幅度调制方法中调制的功率效率。 通过使用2n个星座点（810）将星座布置到相邻正三角形的顶点。 通过使用最佳比特流映射或次最佳比特流映射之一来使用星座点来映射N比特（820）。
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公开(公告)号：KR1020070108105A
公开(公告)日：2007-11-08
申请号：KR1020070097557
申请日：2007-09-27
Applicant: 강릉원주대학교산학협력단
IPC: H04B7/26
CPC classification number: H04L27/3405 , H04L27/345 , H04L27/3809
Abstract: A method and apparatus for detecting a received signal using triangular constellation are provided to compute a length value between the received signal and each constellation point and designate a coordinate value corresponded to a minimum value, thereby simply and optimally detecting the received signals in constellation. A method for detecting a received signal using triangular constellation comprises the following steps of: receiving the received signal from an external part(810); computing a length value on a constellation coordinates between the received signal and each constellation point which is included in the constellation(820); designating a coordinate value corresponded to a minimum value among the computed length value as detection data(840); and transmitting the detected data to the external part(850).
Abstract translation: 提供一种使用三角形星座检测接收信号的方法和装置，以计算接收信号与每个星座点之间的长度值，并指定与最小值对应的坐标值，从而简单且最佳地检测星座中的接收信号。 一种使用三角星座检测接收信号的方法包括以下步骤：从外部接收接收信号（810）; 计算所述接收信号与包括在所述星座图中的每个星座点之间的星座坐标上的长度值; 指定对应于计算出的长度值中的最小值的坐标值作为检测数据（840）; 以及将检测到的数据发送到外部部分（850）。
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公开(公告)号：KR101796177B1
公开(公告)日：2017-11-13
申请号：KR1020160070187
申请日：2016-06-07
Applicant: 강릉원주대학교산학협력단
IPC: H04L5/00 , H04L25/02 , H04L12/707
Abstract: 본발명의일 실시예에따른데이터전송장치는수신장치로부터다중경로페이딩지수를수신하는수신부, 상기다중경로페이딩지수에대응하는보호구간을설정하는보호구간설정부및 상기보호구간을포함하는전송신호를통해데이터를상기수신장치로전송하는송신부를포함한다.
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公开(公告)号：KR101213720B1
公开(公告)日：2012-12-18
申请号：KR1020110020990
申请日：2011-03-09
Applicant: 강릉원주대학교산학협력단
IPC: G08C17/02
Abstract: 수중환경모니터링시스템은수중에위치하여수중환경을측정하여데이터를생성하는슬레이브모니터및 수면상에위치하여상기슬레이브모니터로부터수중통신을통해상기데이터를수신하는마스터모니터를포함하되, 상기마스터모니터는상기데이터를전파통신을통해전송한다.
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公开(公告)号：KR101005933B1
公开(公告)日：2011-01-03
申请号：KR1020080135732
申请日：2008-12-29
Applicant: 강릉원주대학교산학협력단
IPC: H04W84/18
Abstract: 본 발명은 마스터와 슬레이브 간의 데이터 전송방법 및 장치에 관한 것이다. 본 발명은 마스터(100)와 슬레이브(200) 상호 간에 SPI(Serial Peripheral Interface) 규격에 의한 핀 구성 이외에 슬레이브(200)가 마스터(100)에게 전송할 데이터가 있음을 알리는 외부 핀을 추가로 구성한다. 외부 핀은 마스터(100)와 슬레이브(200)에 각각 구비되고 서로 연결된다. 그런 상태에서 슬레이브(200)가 데이터 전송준비를 완료하면 외부 핀을 로우레벨 상태로 설정한다. 로우레벨 상태는 데이터 송수신이 가능한 상태를 말한다. 마스터(100)는 외부 핀 상태를 감시하다가 슬레이브(200)의 외부 핀이 로우레벨로 설정되면, 클럭핀(SCK)을 통해 소정 주파수의 클럭신호를 슬레이브(200)에게 발생한다. 이에 슬레이브(200)는 클럭신호에 따라 상기 마스터(100)에게 데이터를 전송한다. 슬레이브(200)는 데이터 전송을 완료하면, 상기 마스터(100)에게 데이터 전송이 완료되었음을 통보하기 위해 상기 외부 핀을 하이레벨 상태로 설정한다. 이와 같은 본 발명에 따르면, 마스터가 슬레이브로부터 수신할 데이터 유무를 확인할 필요가 없기 때문에 데이터의 오버헤드를 감소시키는 이점이 있다.
마스터, 슬레이브, SPI, 외부 핀
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