-
公开(公告)号：KR1020090044249A
公开(公告)日：2009-05-07
申请号：KR1020070110254
申请日：2007-10-31
Applicant: 한국전자통신연구원
CPC classification number: H04W40/10 , H04W84/18 , Y02D30/20 , Y02D70/166 , Y02D70/22 , Y02D70/326
Abstract: Provided is a reliable and energy efficient data routing apparatus and method for a sensor node in a wireless sensor network. The method includes: receiving route setup messages including residual energy information of each of one or more neighboring sensor nodes within a wireless reception range of the sensor node from the neighboring sensor nodes for a predefined reception waiting time; selecting a parent node for routing from among the neighboring sensor nodes according to the residual energy information of each of the neighboring sensor nodes; and transmitting the sensing data to the selected parent node. Accordingly, since a data transmission path is selected by considering residual energy, energy consumption can be dispersed across the wireless sensor network to extend the lifetime of the wireless sensor network and a detour can be used to improve data transmission reliability.
-
公开(公告)号：KR1020090003067A
公开(公告)日：2009-01-09
申请号：KR1020070086164
申请日：2007-08-27
Applicant: 한국전자통신연구원
Abstract: A shopping information collecting apparatus and method using a magnetic sensor are provided to efficiently manage stores at low installation cost and low maintenance cost. A shopping information collecting apparatus(10) using a magnetic sensor includes a magnetic value detection and analysis unit(11) for detecting a magnetic value in real time and analyzing the magnetic value, a central processing unit(13) for processing shopping information based on the magnetic value, and a shopping information transmitter for transmitting the shopping information processed by the central processing unit.
Abstract translation: 提供使用磁传感器的购物信息收集装置和方法以低安装成本和低维护成本有效地管理商店。 使用磁传感器的购物信息收集装置（10）包括用于实时检测磁值并分析磁值的磁值检测和分析单元（11），用于处理购物信息的中央处理单元（13），其基于 磁值，以及用于发送由中央处理单元处理的购物信息的购物信息发送器。
-
公开(公告)号：KR100873483B1
公开(公告)日：2008-12-15
申请号：KR1020070069614
申请日：2007-07-11
Applicant: 한국전자통신연구원
CPC classification number: Y02D70/10
Abstract: 본 발명은 무선 센서 네트워크에서의 멀티채널 운용 방법에 관한 것으로, 더욱 상세하게는 지그비(Zigbee) 등과 같은 무선 센서 네트워크에서 한 개의 라디오 인터페이스를 구비한 경우 상호 인터피어런스가 발생하지 않도록 채널을 변경시켜 여러 채널을 통해 데이터를 전송하기 위한, 무선 센서 네트워크에서의 멀티채널 운용 방법에 관한 것으로서, 무선 센서 네트워크에서의 멀티채널 운용 방법에 있어서, 병행도를 산출하여 동일한 게이트웨이를 이용하는 각 PAN(Personal Area Network)의 코디네이터를 설정하는 단계; 상기 각 PAN의 채널정보를 관리하는 채널정보 관리단계; 메인 채널 및 타 채널의 수퍼프레임 스케줄 정보를 포함하는 비이컨 프레임을 생성하여 해당 PAN의 각 노드들로 전송하는 단계; 및 메인 채널의 비활성화 구간에 상기 타 채널의 수퍼프레임 스케줄 정보를 이용하여 데이터를 수신하는 데이터 수신단계를 포함한다.
무선 센서 네트워크, 멀티채널 운용, PAN, 병행도, 수퍼프레임 스케줄 정보Abstract translation: 提供无线传感器网络中的多通道操作方法，以满足网络传输性能高的要求，并且在满足以低功率运行的无线传感器网络的要求的情况下防止数据丢失。 计算并行度来设置每个PAN（个人区域网络）的协调器。 管理每个PAN的通道信息。 生成包含主信道和不同信道的超帧调度信息的信标帧，并将其发送到对应PAN的各节点。 在主信道的非激活间隔期间，通过使用不同信道（辅助信道）的超帧调度信息来接收数据。 在管理信道信息时，基于主信道的调度，将不同信道的开始时间和结束时间作为相对时间信息进行管理。
-
公开(公告)号：KR100868474B1
公开(公告)日：2008-11-12
申请号：KR1020070015473
申请日：2007-02-14
Applicant: 한국전자통신연구원 , 중앙대학교 산학협력단
CPC classification number: Y02D70/10
Abstract: A method for receiving broadcast data using a timer in a personal wireless communication network is provided to be utilized for an application such as a broadcast service of a ubiquitous and low power personal wireless network by minimizing power consumption. A reception node receives broadcast data from a transmission node in a standby state(501,502). The reception node performs decoding and error inspection on the received data(503) to check whether there is an error in the data(504). If the received data has an error, the reception node drives a 'NAK' timer(505). The reception node checks whether the 'NAK' timer has expired(506). If the 'NAK' timer has expired, the reception node transmits a 'NAK' signal to the transmission node(507). If the 'NAK' timer has not expired, the reception node checks whether the same data is received again(509). If the same data is received again from the transmission node, the reception node terminates the 'NAK' timer(510).
-
公开(公告)号：KR1020080078509A
公开(公告)日：2008-08-27
申请号：KR1020070058002
申请日：2007-06-13
Applicant: 한국전자통신연구원 , 포항공과대학교 산학협력단
Abstract: An antenna feed circuit and a switching beam forming apparatus are provided to simplify a structure and to reduce loss without a coupler and a cross line. An antenna feed circuit(100) includes a signal divider(102), a switching element(103), a plurality of phase shifters(104-108), and antennas(109-112). The signal divider divides an input signal. The switching element performs switching operation according to an external control signal. The plurality of phase shifters generate phase shifts of the divided signals according to the switching operation of the switching element. The antennas are connected to the phase shifters and form two sector beams. The phase shifters are composed of delay lines to generate phase delays.
Abstract translation: 提供天线馈电电路和切换波束形成装置，以简化结构并且减少没有耦合器和交叉线的损耗。 天线馈电电路（100）包括信号分配器（102），开关元件（103），多个移相器（104-108）和天线（109-112）。 信号分压器分割输入信号。 开关元件根据外部控制信号进行开关动作。 多个移相器根据开关元件的开关动作产生分频信号的相移。 天线连接到移相器并形成两个扇区波束。 移相器由延迟线组成，以产生相位延迟。
-
Patent Agency Ranking
公开(公告)号：KR1020080044752A
公开(公告)日：2008-05-21
申请号：KR1020070078569
申请日：2007-08-06
Applicant: 한국전자통신연구원
Abstract: A millimeter wave transition apparatus of a dielectric waveguide and a transmission line is provided to drastically reduce a design time of the millimeter wave transition apparatus and reduce a process error. A millimeter wave transition apparatus of a dielectric waveguide and a transmission line(210) includes a slot(230). The transition line is arranged at an input terminal and an output terminal along a signal transition direction at a top of an uppermost dielectric substrate to transit a signal. The dielectric waveguide becomes a signal transition path by being formed by top and bottom ground surfaces of a lowermost dielectric substrate and a via row arranged along the signal transition direction. The slot is arranged on the signal transition path of the top ground surface and transits the signal inputted from the input terminal transmission line to an output terminal transmission line via the dielectric waveguide by connecting the transmission line to the dielectric waveguide.
Abstract translation: 提供介质波导和传输线的毫米波变换装置，以显着减少毫米波转换装置的设计时间并减少处理误差。 介质波导和传输线（210）的毫米波变换装置包括槽（230）。 过渡线被布置在输入端子和沿着信号转移方向的输出端子，位于最上面的电介质基板的顶部以传送信号。 电介质波导通过由沿着信号转移方向布置的最下面的电介质基板和通孔列的顶面和底面而形成信号转变路径。 通过将传输线连接到电介质波导，槽被布置在顶部接地表面的信号转换路径上，并且通过电介质波导将从输入端子传输线输入的信号转换到输出端子传输线。
-
公开(公告)号：KR100826528B1
公开(公告)日：2008-04-30
申请号：KR1020060119874
申请日：2006-11-30
Applicant: 한국전자통신연구원
CPC classification number: H04W16/14 , H04L47/10 , Y02D70/166 , Y02D70/26
Abstract: A matching system for preventing a loss of data between a low-power network and a non-low-power network and a method therefor are provided to transmit data according to the RF communication period of the low-power network of a low-rate network in the non-low-power network of a high-rate network, thereby preventing the data from being lost. A heterogeneous network communication unit(13,22) receives an RF(Radio Frequency) communication period from a low-power network and transceives data with the low-power network. A heterogeneous network communication scheduling unit(14) schedules the heterogeneous network communication unit to transmit the data during the RF communication pause time of the low-power network by using the RF communication period received from the heterogeneous network communication unit.
Abstract translation: 提供了一种用于防止低功率网络和非低功率网络之间的数据丢失的匹配系统及其方法，用于根据低速率网络的低功率网络的RF通信周期来发送数据 在高速率网络的非低功率网络中，从而防止数据丢失。 异构网络通信单元（13,22）从低功率网络接收RF（射频）通信周期，并与低功率网络收发数据。 异构网络通信调度单元（14）通过使用从异构网络通信单元接收的RF通信周期来调度异构网络通信单元在低功率网络的RF通信暂停时间期间发送数据。
-
公开(公告)号：KR1020070061093A
公开(公告)日：2007-06-13
申请号：KR1020060045148
申请日：2006-05-19
Applicant: 한국전자통신연구원
IPC: H01P1/215
CPC classification number: H01P1/212 , H01P1/2002 , H01P1/20345 , H01P1/2088
Abstract: A band rejection filter utilizing a dielectric waveguide is provided to attenuate a signal of unwanted band by forming a via and an aperture on a multi-layered dielectric substrate. A band rejection filter utilizes a dielectric waveguide(10) having an upper ground surface(11), a lower ground surface(12), and a via(31). At least one cavity(30) is provided on the upper or upper ground surface to have the constant width, length and height by using the via and the number of the substrates so that the cavity is resonated at a wanted band rejection frequency. At least one aperture(20) is formed between the dielectric substrate and the cavity to connect the dielectric waveguide with the cavity.
Abstract translation: 提供利用电介质波导的带阻滤波器，通过在多层电介质基片上形成孔和孔来衰减不想要的带的信号。 带阻滤波器利用具有上接地表面（11），下接地表面（12）和通孔（31）的电介质波导（10）。 在上或上地面上设置至少一个空腔（30），以通过使用通孔和基板的数量使其具有恒定的宽度，长度和高度，使得空腔以期望的频带阻抗频率谐振。 在电介质基板和空腔之间形成至少一个开口（20），以将电介质波导与空腔连接起来。
-
公开(公告)号：KR100714451B1
公开(公告)日：2007-05-04
申请号：KR1020060035298
申请日：2006-04-19
Applicant: 한국전자통신연구원
Abstract: 1, 청구범위에 기재된 발명이 속하는 기술분야
본 발명은 유전체 도파관과 표준 도파관을 접속시키기 위한 천이구조(transition)에 관한 것임.
2, 발명이 해결하고자 하는 기술적 과제
유전체 도파관과 표준 도파관을 접속하는 구조에 있어서 유전체 도파관과 표준 도파관 사이에 공동(캐비티: cavity)을 형성해 서로의 정합을 손쉽게 하는 천이 구조를 제공하고자 함.
3, 발명의 해결방법의 요지
유전체 도파관과 표준 도파관은 직교하는 방향으로 위치하며 그 사이에 정합을 위한 공동(캐비티)을 가지는 것을 특징으로 함.
4, 발명의 중요한 용도
밀리터리파 시스템 등에서 유전체 도파관과 표준 도파관을 접속시키기 위해 사용됨.
유전체 도파관, 천이구조, 밀리터리파Abstract translation: 如图1所示，是权利要求书中记载的发明所属的技术领域
-
-
-
-
-
-
-
-
-
Search Results
214
records
(took 0.029 seconds)
