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公开(公告)号：KR100542402B1
公开(公告)日：2006-01-11
申请号：KR1020020064905
申请日：2002-10-23
Applicant: 한국전자통신연구원
IPC: H04L12/28
Abstract: 본 발명은 이더넷-폰(Ethernet-Passive Optical Network;이하, E-PON이라 한다) 구조에서 ONU의 상향 Request 정보를 상향 이더넷 프레임의 프리엠블(Preamble)에 추가하여 OLT로 전송함으로써 OLT가 계속적으로 ONU의 상태정보를 알 수 있도록 하는 E-PON 구조에서의 ONU Request 전송방법에 관한 것이다. 본 발명은, 하나의 OLT에 다수의 ONU가 하향 이더넷 프레임을 공유하고 상기 ONU에서 상기 OLT로의 상향 대역폭은 시분할 다중접속(TDMA) 방식으로 OLT가 상기 ONU에게 할당하는 이더넷-폰(E-PON) 구조에서의 ONU Request 전송방법에 있어서, ONU는 OLT로 전달하는 상향 이더넷 데이터 프레임의 프리엠블에 상기 ONU의 상향 Request 정보를 삽입하여 상기 OLT로 전송하고 상기 OLT가 상기 전송되는 상향 이더넷 데이터 프레임의 프리엠블로부터 각 ONU의 Request 정보를 추출하는 것을 특징으로 한다.
E-PON, ONU, OLT, Request(대역 요구), 이더넷 프레임, 프리엠블-
公开(公告)号：KR1020040084621A
公开(公告)日：2004-10-06
申请号：KR1020030019822
申请日：2003-03-29
Applicant: 한국전자통신연구원 , 학교법인 한국정보통신학원
IPC: H04L25/03
CPC classification number: H04B10/695
Abstract: PURPOSE: A burst-mode optical receiver is provided to remove an offset from an amplifier by converting a single-end output to a differential output. CONSTITUTION: A photo detector(41) is used for converting an inputted optical signal to a current signal. A pre-amplifier(42) is used for converting the current signal to a voltage signal. A single-differential converter(43) is used for converting a single output signal of the pre-amplifier to a differential signal. A post amplifier(44) is used for amplifying the differential signal of the single-differential converter and remove an offset from an amplifying process and an offset from the differential signal. A determination unit(45) is used for deciding data from the differential signal of the post amplifier.
Abstract translation: 目的：提供突发模式光接收机，通过将单端输出转换为差分输出来消除放大器的偏移。 构成：光检测器（41）用于将输入的光信号转换为电流信号。 前置放大器（42）用于将电流信号转换为电压信号。 单差分转换器（43）用于将前置放大器的单个输出信号转换为差分信号。 后置放大器（44）用于放大单差分转换器的差分信号，并从放大过程中消除偏移和从差分信号偏移。 确定单元（45）用于根据后置放大器的差分信号来确定数据。
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公开(公告)号：KR1020040057027A
公开(公告)日：2004-07-01
申请号：KR1020030009750
申请日：2003-02-17
Applicant: 한국전자통신연구원
IPC: H04L12/00
CPC classification number: H04B10/40 , H04B10/2504
Abstract: PURPOSE: An ONU(Optical Network Unit) in an E-PON(Ethernet-Passive Optical Network) and a method for transmitting data therein are provided to shorten clock recovery time in a network-side OLT(Optical Line Terminal) by transmitting a signal pattern of 1010101010 or 0101010101,= in which 0 and 1 appear alternately, as a start signal pattern for clock recovery in the network-side OLT. CONSTITUTION: A transmitting part(230) in an ONU(200) comprises a state control part(231) and an encoder(232). If a GMII(Gigabit Ethernet Media Independent Interface) signal(TXD£7:0|), a GMII Tx enable signal(TX_EN), a GMII Tx error signal(TX_ER), and a GMII Tx clock(GTX_CLK) are received from a medium access control part(210) and an Xmit signal is received from an AN(Auto-Negotiation) part(220), the state control part(231) creates a set of code groups having control information according to the received signals and sends 8-bit parallel data, based on the created set. The encoder(232) converts the 8-bit parallel data into 10-bit code group data.
Abstract translation: 目的：提供E-PON（以太网无源光网络）中的ONU（Optical Network Unit，光网络单元）及其中的数据传输方法，通过发送信号来缩短网络侧OLT（Optical Line Terminal，光线路终端）的时钟恢复时间 1010101010或0101010101的模式，其中0和1交替出现，作为网络侧OLT中的时钟恢复的起始信号模式。 构成：ONU（200）中的发送部（230）包括状态控制部（231）和编码器（232）。 如果接收到GMII（千兆以太网媒体独立接口）信号（TXD£7：0 |），GMII Tx使能信号（TX_EN），GMII Tx错误信号（TX_ER）和GMII Tx时钟（GTX_CLK） 媒体接入控制部分（210）和从AN（自动协商）部分（220）接收到Xmit信号，状态控制部分（231）根据接收到的信号创建一组具有控制信息的码组，并发送8 并行数据，基于创建的集合。 编码器（232）将8位并行数据转换为10位代码组数据。
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公开(公告)号：KR1020040036101A
公开(公告)日：2004-04-30
申请号：KR1020020064905
申请日：2002-10-23
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04J14/0247 , H04J14/0282 , H04Q11/0066 , H04Q11/0067 , H04Q2011/0088
Abstract: PURPOSE: An ONU(Optical Network Unit) request transmission method in an Ethernet-phone structure is provided to be continuously informed on status of an ONU from an uplink data frame by adding uplink request information of the ONU to the preamble of an Ethernet frame. CONSTITUTION: A MAC layer(21) has a MAC control function of IEEE802.3 and additionally includes an MPCP(Multi-Protocol Control Protocol), a transmission control function of an E-PON(Ethernet-Passive Optical Network). An RS(Reconciliation Sublayer)(23) performs a P2PE(Point-to-Point Emulation) function and an OAM(Operation and Management) function for allowing ONUs belonging to an OLT(Optical Line Terminal) domain to communication with each other, and an information insertion/extraction function of the ONU. The ONU performs a frame filtering function using a physical ID and a MAC preamble recovery function. The physical ID is assigned by an Ethernet PON OLT. An RS(26) compares a physical ID of a preamble of a frame received from an OLT and its own physical ID, and sends it to an upper layer(25) or discards it according to a mode of the received frame. When the ONU receives grant for transmission from the OLT, it indicates its request information in a preamble of a subscriber Ethernet frame to be transmitted to the OLT and transmits it. the OLT collects request information of each ONU from the preambles of Ethernet frames and transmits it to a MAC control layer(24).
Abstract translation: 目的：提供以太网电话结构中的ONU（Optical Network Unit，光网络单元）请求传输方法，通过将ONU的上行链路请求信息加到以太网帧的前导码，从上行链路数据帧连续通知ONU的状态。 构成：MAC层（21）具有IEEE802.3的MAC控制功能，并且还包括MPCP（多协议控制协议），E-PON（以太网无源光网络）的传输控制功能。 RS（调和子层）（23）执行用于允许属于OLT（光线路终端）域的ONU彼此通信的P2PE（点对点仿真）功能和OAM（操作和管理）功能，以及 ONU的信息插入/提取功能。 ONU使用物理ID和MAC前导码恢复功能来执行帧过滤功能。 物理ID由以太网PON OLT分配。 RS（26）比较从OLT接收到的帧的前同步码的物理ID与其自己的物理ID，并将其发送到上层（25）或根据接收到的帧的模式丢弃。 当ONU从OLT接收到用于从OLT发送的许可时，它将其请求信息指示在要发送到OLT的用户以太网帧的前导码中并将其发送。 OLT从以太网帧的前导码中收集每个ONU的请求信息，并将其发送到MAC控制层（24）。
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Patent Agency Ranking
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公开(公告)号：KR1020140098598A
公开(公告)日：2014-08-08
申请号：KR1020130011459
申请日：2013-01-31
Applicant: 한국전자통신연구원
CPC classification number: B60R1/002 , B60W30/095 , B60W2050/0075 , B60W2420/42 , B60W2420/62 , B60W2520/10 , B60W2550/402
Abstract: Disclosed are an obstacle detection device adapting to a vehicle speed and a method thereof. The present invention can control an obstacle detection response speed by varying a recognition region which detects an obstacle placed at the front of a vehicle based on a driving speed of the vehicle, and integrate sensing data generated from a plurality of sensors by providing synchronization signals to perform time synchronization for different sensors which generate the sensing data of the obstacle.
Abstract translation: 公开了适应车速的障碍物检测装置及其方法。 本发明可以通过根据车辆的行驶速度改变检测车辆前方的障碍物的识别区域来控制障碍物检测响应速度，并且通过提供同步信号将由多个传感器产生的感测数据整合到 对生成障碍物的感测数据的不同传感器执行时间同步。
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公开(公告)号：KR1020140032658A
公开(公告)日：2014-03-17
申请号：KR1020120099207
申请日：2012-09-07
Applicant: 한국전자통신연구원
IPC: G08G1/09
CPC classification number: G08G1/16 , G08G1/096716 , G08G1/096725 , G08G1/096741 , G08G1/096775 , G08G1/096783 , G08G1/096791 , G08G1/166
Abstract: A device for gathering information on surroundings of a vehicle according to the present invention may comprise a vehicle sensor data gathering block for gathering the first surrounding information of a vehicle using one or more sensors mounted on the vehicle; a roadside unit data gathering block for gathering the second surrounding information of the vehicle using a roadside communication unit installed on an infrastructure around the vehicle; and a data integration block which separates the first and second surrounding information by predetermined data types and which integrally manages the surrounding information data separated by types based on predetermined reliability standards. [Reference numerals] (104) Laser scanner; (106) Image sensor; (108) Roadside communication unit; (110) Center communication unit; (121) Vehicle sensor data gathering block; (122) Roadside unit data gathering block; (123) Center communication data gathering block; (124) Data integration block; (125) Surrounding information using block; (AA) Surrounding information data
Abstract translation: 根据本发明的用于收集关于车辆周围环境的信息的装置可以包括车辆传感器数据收集块，用于使用安装在车辆上的一个或多个传感器收集车辆的第一周围信息; 路边单元数据采集块，用于使用安装在车辆周围的基础设施上的路侧通信单元收集车辆的第二周围信息; 以及数据集成块，其通过预定的数据类型分离第一和第二周围信息，并且基于预定的可靠性标准对由类型分离的周围信息数据进行整体管理。 （附图标记）（104）激光扫描仪; （106）图像传感器; （108）路边通讯单位; （110）中心通讯单元; （121）车辆传感器数据采集块; （122）路边单位数据采集区; （123）中心通信数据采集块; （124）数据集成块; （125）使用块的周边信息; （AA）周围的信息数据
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公开(公告)号：KR101206431B1
公开(公告)日：2012-11-29
申请号：KR1020090026669
申请日：2009-03-27
Applicant: 한국전자통신연구원
Abstract: 본 발명은 차량의 위치 추적 방법 및 그 장치에 관한 것이다.
차량의 위치 추적 장치는 차량의 이동 경로에 배치되는 RFID 태그를 감지하기 위한 송신 신호를 송출하고, RFID 태그로부터 태그 신호를 수신하며, GPS 신호를 수신하는 RFID 리더와 GPS 수신부를 포함한다. 또한, 차량의 위치 추적 장치는 수신한 태그 신호 내지 GPS 신호를 토대로 위치좌표를 추출하여, 태그 신호와 GPS 신호의 수신세기를 토대로 RFID 리더와 GPS 수신부를 제어하고 동작 모드를 결정하고, 결정된 동작 모드에 대응하게 추출한 위치 좌표를 이용하여 차량의 위치를 추적한다.
이로써, 본 발명은 차량의 이동 경로에 대응하게 GPS 및 RFID 을 적용하여 실내 내지 실외 어느 곳에서도 연속성을 가지고 차량의 위치를 추적할 수 있다.
RFID, GPS, 위치 추적, 리더, 태그, 차량
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