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    • 54. 发明授权
    • 다중채널 액세스를 제어하는 장치 및 방법
    • 空值
    • KR100932926B1
    • 2009-12-21
    • KR1020070133744
    • 2007-12-18
    • 한국전자통신연구원
    • 박태준김세한김내수표철식이재용김병철
    • H04B7/26
    • H04W72/02H04W72/0406Y02D70/142Y02D70/166
    • 본 발명은 USN(Ubiquitous Sensor Network) 기반의 MAC에서 다중채널 액세스를 제어하는 장치 및 방법에 관한 것이다. 이를 위해 본 발명의 다중채널액세스제어장치는 송신센서노드에서 데이터채널 중 가용할 수 있는 적어도 하나 이상의 가용채널을 검색하는 채널검색부; 송신센서노드는 컨트롤채널센싱 및 백오프를 통해 상기 컨트롤채널을 선점한 후 프리앰블을 컨트롤 채널에 주기적으로 방송하는 컨트롤채널선점부;및 수신센서노드는 수신한 프리앰블을 기초로 송신센서노드가 가용할 수 있는 가용채널을 파악하고 그 중 수신센서노드에서 가용할 수 있는 채널을 선택하여 그 정보를 송신센서노드에 전송하는 가용채널교환부;를 포함한다.
      채널검색, 채널 협상
    • 提供了一种用于在基于USN的MAC中控制多信道接入的装置和方法。 多通道访问控制装置包括信道扫描器,控制信道预占方和可用信道交换机。 信道扫描器扫描Tx传感器节点中的N个数据信道中的至少一个或多个可用信道。 控制信道预占在Tx传感器节点中通过控制信道感测和退避来控制控制信道,并且周期性地在控制信道上广播前导码。 可用信道交换机在Rx传感器节点中,根据接收到的前导码检测Tx传感器节点可用的可用信道,在检测到的可用信道中选择可用于Rx传感器节点的信道,并发送关于所选择的信道的信息 通道到Tx传感器节点。
    • 55. 发明公开
    • 충돌 상황에 따라 명령을 재전송하는 RFID 리더 장치 및 그 제어방법
    • 用于状态指示恢复的RFID读取器装置及其控制方法
    • KR1020090097830A
    • 2009-09-16
    • KR1020090021373
    • 2009-03-12
    • 한국전자통신연구원
    • 박찬원오세원최길영표철식채종석프레이슈버-플뤼겔,조셉취쉐,데이비드
    • H04B5/02H04L1/18
    • G06K7/0008G06K7/10029G06K7/10356
    • An RFID reader device for situational command retransmission and a control method therefor are provided to recognize the reason for collision occurrence by enabling the recognition for all types of collisions in the procedure in which the RFID reader reads out a tag. An RFID reader device for situational command retransmission includes a collision diagnosing unit(161) and a collision settlement unit(165). The collision diagnosing unit analyzes the data of a signal received during a receiving time by corresponding to a transmission signal from an RF communication unit and diagnoses the collision type according to the analyzed result. Based on the collision type received from the collision diagnosing unit, the collision settlement unit enables the command to be transmitted to the tag through the RF communication unit according to the collision situation. The collision settlement unit includes a command retransmission unit(1651) and a random standby time calculating unit(1652).
    • 提供一种用于情景命令重传的RFID读取装置及其控制方法,用于通过在RFID读取器读出标签的过程中对所有类型的冲突进行识别来识别冲突发生的原因。 用于情景命令重传的RFID读取装置包括碰撞诊断单元(161)和碰撞结算单元(165)。 碰撞诊断单元通过对应于来自RF通信单元的发送信号来分析在接收时间期间接收到的信号的数据,并根据分析结果诊断碰撞类型。 基于从碰撞诊断单元接收到的碰撞类型,碰撞结算单元根据碰撞情况使命令能够通过RF通信单元发送到标签。 碰撞解决单元包括命令重传单元(1651)和随机待机时间计算单元(1652)。
    • 57. 发明公开
    • RFID 태그의 활성화 코드 생성 방법
    • 为无线电频率识别标签创建激活码的方法
    • KR1020090065483A
    • 2009-06-22
    • KR1020090017909
    • 2009-03-03
    • 한국전자통신연구원
    • 김현석최수나이형섭성낙선표철식채종석
    • H04B5/02H04B7/00G06K17/00
    • G06K19/0723G06K7/0008
    • A method for producing an activation code of an RFID tag including a binary code is provided to classify a classification codes through the activation code by recording a binary code to an activation code of the RFID tag and produce an activation code of the RFID tag including the binary code. Objects are classified by using an RFID(Radio Frequency ID) tag according to an active code generation server(211). The activation code generating server sets up the code corresponding to each object(213). Each code is recorded as the activation code generating server in the activation code of each RFID tag(214). An RFID activation method produces an activation code of an RFID tag including a binary code.
    • 提供了一种用于产生包括二进制码的RFID标签的激活码的方法,用于通过将激活代码记录到RFID标签的激活码上来分类代码,并产生包括RFID标签的RFID标签的激活码 二进制代码。 通过使用根据活动代码生成服务器(211)的RFID(射频ID)标签对对象进行分类。 激活代码生成服务器设置与每个对象相对应的代码(213)。 在每个RFID标签(214)的激活码中记录每个代码作为激活代码生成服务器。 RFID激活方法产生包括二进制码的RFID标签的激活码。
    • 58. 发明公开
    • MAC하드웨어 전처리장치 및 방법
    • 用于在MAC系统中预处理和减少的方法和装置
    • KR1020090065252A
    • 2009-06-22
    • KR1020070132731
    • 2007-12-17
    • 한국전자통신연구원
    • 박태준김내수표철식
    • H04L12/28H04L9/00
    • A method and an apparatus for preprocessing MAC(Media Access Control) hardware are provided to remove a need of separate processing of a processor, thereby improving performance and power efficiency. An encoding preprocessing searcher(1021) successively searches an FCF(Frame Control Field) field, an address field and an aux security field. An encoding information generator(1022) produces encoding input information. A decoding preprocessing searcher(1031) successively searches the FCF field, the address field and the aux security field. A decoding information generator(1032) produces decoding input information.
    • 提供了用于预处理MAC(媒体访问控制)硬件的方法和装置,以消除对处理器的单独处理的需要,从而提高性能和功率效率。 编码预处理搜索器(1021)连续搜索FCF(帧控制字段)字段,地址字段和辅助安全字段。 编码信息生成器(1022)生成编码输入信息。 解码预处理搜索器(1031)连续搜索FCF字段,地址字段和辅助安全字段。 解码信息生成器(1032)产生解码输入信息。
    • 60. 发明公开
    • 무선 센서 네트워크의 구역별 위치 인식 방법 및 장치
    • 无线传感器网络区域定位的方法与装置
    • KR1020090064846A
    • 2009-06-22
    • KR1020070132203
    • 2007-12-17
    • 한국전자통신연구원
    • 도윤미박노성김현학김선중표철식
    • H04L12/28H04B7/26
    • G01S5/02H04W64/003H04W76/20H04W84/18H04W88/16
    • A section recognizing method for clearly recognizing the location of a goal object according to a section and an apparatus thereof are provided to recognize the location of the goal object based on the connection setup of the sensor node attached to the goal object. A location recognition zone is set up in sensor network in consideration of the signal strength of an anchor node(402). A sensor node(403) senses an event in the sensor network target object is sensed. A node accepts the connection attempt of the sensor node and the connection is completed. According to the sensing of event, the position awareness section in which the sensor node is positioned is grasped. The location of the goal object is recognized based on the grasped position awareness section as described above.
    • 提供根据部分及其装置清楚地识别目标对象的位置的部分识别方法,以基于附接到目标对象的传感器节点的连接设置来识别目标对象的位置。 考虑到锚节点(402)的信号强度,在传感器网络中建立位置识别区域。 传感器节点(403)感测传感器网络中的事件目标对象被感测到。 节点接受传感器节点的连接尝试,并且连接完成。 根据事件感测,掌握了传感器节点所在位置感知部分。 基于如上所述的掌握位置感知部分来识别目标对象的位置。