Abstract:
본 발명은 WBAN 기반 무선 USB 시스템에서 선박 내 위치인식 및 개인 정보 전달을 위한 방법 에 관한 것으로서, 구체적으로는, 박 내 실내에서 개인 정보 전달의 효율성을 높이는 WUSB over WBAN 프로토콜 구조와 본 프로토콜에 기초한 실내 위치인식 기술에 관한 것이다. 본 발명은 선박 내 위치 인식 리시버들이 각 비컨(BEACON)과의 거리 값 계산을 위한 시간정보 Data(TCNT: 초음파 도달시간)을 획득하는 단계, 리시버(RECEAIVER)들이 획득한 데이터를 중계(Relay) 노드 역할을 하는 비컨을 통해 상황인식 서버와 연결된 싱크 노드(Sink node)에게 전달하는 단계, 상황인식 서버가 상기 싱크 노드로부터 전달받은 시간정보 Data를 이용해 상기 비컨과 리시버간의 거리 값을 계산, 이를 이용하여 삼각 측량 방식으로 리시버의 위치 좌표를 계산하고 디스플레이하는 단계를 포함한다.
Abstract translation:本发明涉及一种在基于WBAN的无线USB系统中识别船舶位置和传送个人信息的方法,更具体地说,涉及一种能够提高船上个人信息传送效率的WANB over WBAN协议结构 和基于协议的室内位置识别技术。 本发明包括: 通过所述容器内的识别接收器,用每个信标获得距离值计算的时间信息数据(TCNT)的步骤; 将由接收机获得的数据通过用作中继节点的信标传送到与状况识别服务器连接的汇聚节点的步骤; 通过使用状况识别服务器从汇聚节点接收到的时间信息数据和使用距离值并显示相同的三角测量方法来计算接收机的位置坐标来计算信标和接收机之间的距离值的步骤 。
Abstract:
PURPOSE: A method for improving WiMedia network performance for a vessel network is provided to prevent and solve new DRP(Distributed Reservation Protocol) reservation collision by using a 2-hop DRP availability IE(Information Element) and a DRP control field in a vessel network environment. CONSTITUTION: A DRP target receives a 2-hop DRP availability IE from 1-hop distance devices. The 2-hop DRP availability IE includes a bitmap field which is composed of 256 bits corresponding to an MAS(Medium Access Slot) in a super frame. When DRP reservation for a 2-hop distance device is possible, the DRP target sets a bit corresponding to the MAS as 1. The DRP target sets the remaining bits as 0.
Abstract:
PURPOSE: A distribution cooperation protocol method based on a multi-hop UWB(Ultra-WideBand) network for marine telematics is provided to avoid interference generated by a device, which is moved in multi-hop environment, or a plurality of devices, which performs data transmission. CONSTITUTION: When interference or mobility, which is generated by nodes which are existed beyond a communication range, is generated, a new resource allocation information element is generated by using a DRP IE(Distributed Reservation Protocol Information Element) and a DRP availability IE in a channel selection process. The DRP IE and the DRP availability IE are collected from all nodes within the communication range. When DT(Direct Transmission) is selected, a source node performs a DRP reservation negotiation process defined by a WiMedia standard. When RT(Relay Transmission) or CT(Cooperative Transmission) is selected, the source node generates a CoopDRP IE.
Abstract:
PURPOSE: A method for communication by using a relay communication protocol for improving QoS performance in a WiMedia Distributed MAC communication system is provided to reserve another indirect link via a relay node besides a direct link in order to maintain QoS resources reserved in a collision target device. CONSTITUTION: A relay request reservation state code is transmitted between two nodes so that a reservation owner node requests a reservation to a relay node. The relay request reservation state code indirectly notifies that there is a DRP reservation request between the relay node and the reservation owner node to a reservation target node. A relay notification reservation state code is used for notifying that data is transmitted to the reservation target node through the relay node. [Reference numerals] (AA) Value; (BB) Code; (CC) Meaning; (DD) Requesting relay transmission to a relay node; (EE) Notifying that data is transmitted to a target node through a relay node; (FF) Accepted DRP resource reservation request for the corresponding relay transmission;
Abstract:
PURPOSE: A PFMIPv6 for the high speed handover of ship communication and an effective interworking method of a WLAN(Wireless Local Area Network) are provided to rapidly execute handover by utilizing a probe request message as a handover trigger and transceiving information which is necessary for handover. CONSTITUTION: An MN(Mobile Node) transmits a probe request message for searching neighbor APs(Access Point), and a pMAG(previous Mobile Access Gateway) executes buffering for preventing the packet loss of the MN. The pMAG broadcasts an MN-ID, HNP(Home Network Prefix), and LMAA information to neighbor MAG(Mobile Access Gateway). A new MAG stores the broadcasted information in a BUL(Binding Update List).
Abstract:
PURPOSE: A method for efficiently reinforcing a voice signal based on a voice coding parameter in marine voice communications is provided to reinforce excitation signals among a bitstream parameter based on a voice encoding device in root environment, thereby supplying excellent performance. CONSTITUTION: An excitation signal gain ratio estimation unit(140) estimates an excitation signal gain ratio by using an excitation signal gain of background noises estimated by an excitation signal gain estimation block(130), and a decoding result which applies a fixed codebook gain by a fixed codebook vector decoding block(120). An excitation signal generation unit(150) generates an excitation signal by using a decoding result which applies an adaptive codebook gain by an excitation signal gain ratio estimation result and an adaptive codebook vector decoding block(110). [Reference numerals] (110,120) Adaptive codebook vector decoding; (130) Excitation signal gain estimation of background noise; (140) Excitation signal gain ratio estimation; (150) Excitation signal generation; (160) Linear prediction synthesis filter; (170) Postprocessor; (AA,BB) Input bit stream; (CC) Adaptive codebook gain application; (DD) Fixed codebook gain application; (EE) Enhanced voice signal; (FF) Near-end background noise estimation;
Abstract:
PURPOSE: A method is provided to remarkably improve communication performance in a poor wireless channel environment by resolving size and cost of a MIMO system. CONSTITUTION: A method selects a hybrid-ARQ type using a cross-layer coding technique based on importance of a channel environment, BER and throughput when transmitting data in collaboration with a base station(BS), a relay station(RS) and a destination station(DS). At this time, the method includes a stage of judging availability of the channel environment based on effect of Rayleigh fading independently varying with a symbol period and path loss according to a distance.
Abstract:
PURPOSE: A DRP(Distribution and Replication Protocol) reservation diversity method based on cooperative relay communication is provided to maintain reserved resources by reserving an indirect link which passes through a relay device. CONSTITUTION: If a first indirect path and a second indirect path are able to be reserved, a reservation subject node transmits a reservation detailed state code to a relay node(S44). The relay node transmits the set reservation detailed state code by notifying a relay state to a reservation target node. The reservation subject node transmits the detailed reservation state code to the reservation target node. The reservation subject node receives the set detailed reservation state code. The reservation subject node transmits data via a direct path which is arranged to the reservation target node(S46).
Abstract:
PURPOSE: An E-navigation system for communications between vessels or a vessel and a land is provided to convert communication methods according to sailing regions of the vessel based on GPS location information received for the communication between vessels or a vessel and a land. CONSTITUTION: A location detection part(120) detects the location information of a vessel based on a signal received from a GPS satellite(200). A control part(130) determines whether the vessel is located at a shore or deep sea. A communication interface part(140) selects one communication method. The communication interface part sets the selected communication method to the communication method of the vessel. [Reference numerals] (110) GPS receiver; (120) Location detection part; (130) Control part; (140) Communication interface part; (150) Communication part; (200) GPS satellite
Abstract:
PURPOSE: A low power wave self generator and a charging device utilizing a low power wave self generator is provided to supply power to a low power device with self generation power supply. CONSTITUTION: A charging device utilizing a low power wave self generator comprises a low power wave self generator and a charging unit(700). The low power wave self generator comprises a single propeller(200), a first and a second power generating motors(500,600), and a first and a second accelerator gear boxes(300). The single propeller is fixed in a propeller fixing frame(100). The first and the second generating motor generates forward and reverse AC power source through left and right rotation. The first and the second accelerator gear boxes are connected to a shaft of the single propeller and drive the first and the second generating motor with left and right rotation accelerated by the vertical movement of the single propeller according to the vertical movement of wave. The charging unit comprises a first charging circuit(710), a second charging circuit(720), and a charging battery(730). The first charging circuit stabilizes and amplifies AC power supply parallel generated from the first and the second power generating motor. The second charging circuit converts AC which is stabilized and is amplified by the first charging circuit into DC and charges a rechargeable battery. [Reference numerals] (710) First charging circuit(power amplification/stabilization); (720) Second charging circuit(charging in a rechargeable battery); (730) Rechargeable battery; (800) Self-generation source