公开(公告)号：US20100034539A1

公开(公告)日：2010-02-11

申请号：US12085767

申请日：2005-12-27

申请人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04J14/08

CPC分类号： H04W56/00 ,  H04B7/2693 ,  H04J3/0667

摘要： A highly precise clock synchronization apparatus in a real-time locating system (RTLS), includes an optical transmitting/receiving unit for receiving a clock information frame from a clock synchronization server, converting the received clock information frame in series-parallel, and transmitting/receiving the clock information data and the clock information; an offset estimation unit for detecting a preamble signal and a clock information signal from the series-parallel converted clock information frame, calculating a phase difference value by comparing the detected preamble signal with the detected clock information signal, and outputting an offset value based on the calculated phase difference value; and a clock synchronization unit for updating a local clock value to a time of the clock synchronization server based on the offset value and the clock information frame.

摘要翻译： 一种实时定位系统（RTLS）中的高精度时钟同步装置，包括一个用于从时钟同步服务器接收时钟信息帧的光发送/接收单元，并行地接收所接收的时钟信息帧，并发送/ 接收时钟信息数据和时钟信息; 偏移估计单元，用于从串并行转换时钟信息帧中检测前置码信号和时钟信息信号，通过将检测到的前导信号与检测到的时钟信息信号进行比较来计算相位差值，并输出基于 计算相位差值; 以及时钟同步单元，用于基于偏移值和时钟信息帧将本地时钟值更新为时钟同步服务器的时间。

公开(公告)号：US08005369B2

公开(公告)日：2011-08-23

申请号：US12085767

申请日：2005-12-27

申请人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Kwang-Ho Ko ,  Chang-Sub Shin ,  Hyun Lee ,  Won-Chul Choi ,  Woo-Yong Lee ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04B10/00

CPC分类号： H04W56/00 ,  H04B7/2693 ,  H04J3/0667

摘要： A highly precise clock synchronization apparatus in a real-time locating system (RTLS), includes an optical transmitting/receiving unit for receiving a clock information frame from a clock synchronization server, converting the received clock information frame in series-parallel, and transmitting/receiving the clock information data and the clock information; an offset estimation unit for detecting a preamble signal and a clock information signal from the series-parallel converted clock information frame, calculating a phase difference value by comparing the detected preamble signal with the detected clock information signal, and outputting an offset value based on the calculated phase difference value; and a clock synchronization unit for updating a local clock value to a time of the clock synchronization server based on the offset value and the clock information frame.

摘要翻译： 一种实时定位系统（RTLS）中的高精度时钟同步装置，包括一个用于从时钟同步服务器接收时钟信息帧的光发送/接收单元，并行地接收所接收的时钟信息帧，并发送/ 接收时钟信息数据和时钟信息; 偏移估计单元，用于从串并行转换时钟信息帧中检测前置码信号和时钟信息信号，通过将检测到的前导信号与检测到的时钟信息信号进行比较来计算相位差值，并输出基于 计算相位差值; 以及时钟同步单元，用于基于偏移值和时钟信息帧将本地时钟值更新为时钟同步服务器的时间。

公开(公告)号：US07933271B2

公开(公告)日：2011-04-26

申请号：US11487534

申请日：2006-07-13

申请人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04L12/28 ,  H04B7/00 ,  H04Q7/00 ,  H04Q7/20

CPC分类号： H04W40/26

摘要： Provided is a Media Access Control (MAC) forwarding method for multi-hop routing in a communication system between vehicles. The method includes the steps of: a) receiving a frame from all nodes and checking whether there are duplicate frames; b) partly updating forwarding cache table (FCT) information, or updating SNT information and checking whether a destination address is a corresponding node; c) updating the FCT information, transmitting an Ack signal and transferring the frame to the upper layer, or searching whether the destination address is registered as “d_addr”; d) updating the FCT information and transmitting a delay ACK frame or checking whether the transmitted frame is a flooding frame; and e) updating the FCT information, checking whether the other node does not transmit the “d_ack” and inserting a flooding frame, otherwise, updating the FCT information and abandoning the frame.

摘要翻译： 提供了一种用于车辆之间的通信系统中的多跳路由的媒体接入控制（MAC）转发方法。 该方法包括以下步骤：a）从所有节点接收帧并检查是否存在重复帧; b）部分更新转发高速缓存表（FCT）信息，或更新SNT信息并检查目的地址是否是对应节点; c）更新FCT信息，发送Ack信号并将帧传送到上层，或者搜索目的地地址是否被注册为“d_addr”; d）更新FCT信息并发送延迟ACK帧或检查所发送的帧是否是泛洪帧; 以及e）更新FCT信息，检查其他节点是否不发送“d_ack”并插入洪泛帧，否则更新FCT信息并放弃该帧。

公开(公告)号：US20070110067A1

公开(公告)日：2007-05-17

申请号：US11487534

申请日：2006-07-13

申请人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Chang-Sub Shin ,  Hyun Lee ,  Han-Byeog Cho ,  Hyuk-Joon Lee ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04L12/56

CPC分类号： H04W40/26

摘要： Provided is a Media Access Control (MAC) forwarding method for multi-hop routing in a communication system between vehicles. The method includes the steps of: a) receiving a frame from all nodes and checking whether there are duplicate frames; b) partly updating forwarding cache table (FCT) information, or updating SNT information and checking whether a destination address is a corresponding node; c) updating the FCT information, transmitting an Ack signal and transferring the frame to the upper layer, or searching whether the destination address is registered as “d_addr”; d) updating the FCT information and transmitting a delay ACK frame or checking whether the transmitted frame is a flooding frame; and e) updating the FCT information, checking whether the other node does not transmit the “d_ack” and inserting a flooding frame, otherwise, updating the FCT information and abandoning the frame.

摘要翻译： 提供了一种用于车辆之间的通信系统中的多跳路由的媒体接入控制（MAC）转发方法。 该方法包括以下步骤：a）从所有节点接收帧并检查是否存在重复帧; b）部分更新转发高速缓存表（FCT）信息，或更新SNT信息并检查目的地址是否是对应节点; c）更新FCT信息，发送Ack信号并将帧传送到上层，或者搜索目的地地址是否被注册为“d_addr”; d）更新FCT信息并发送延迟ACK帧或检查所发送的帧是否是泛洪帧; 以及e）更新FCT信息，检查其他节点是否不发送“d_ack”并插入洪泛帧，否则更新FCT信息并放弃该帧。

公开(公告)号：US20090285140A1

公开(公告)日：2009-11-19

申请号：US12085784

申请日：2006-11-29

申请人： Yong-Sun Kim ,  Se-Han Kim ,  Woo-Yong Lee ,  Hyun Lee ,  Yoon-Mee Doh ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Yong-Sun Kim ,  Se-Han Kim ,  Woo-Yong Lee ,  Hyun Lee ,  Yoon-Mee Doh ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08C17/00

CPC分类号： H04L41/00 ,  H04L12/12 ,  H04L41/12 ,  H04W52/0216 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/164

摘要： Provided is a method for managing dormant nodes in a wireless sensor network. The method includes the steps of: a) acquiring and storing information on distance and location of sensor nodes registered in a corresponding cluster among at least one cluster managed by a managing node; b) selecting a dormant object node among the sensor nodes by the managing node; c) transmitting dormant information that the dormant object node should go into a dormant state for a predetermined period through a beacon message to the dormant object node and creating a dormant node management table; and d) updating a dormant time of the dormant node management table every beacon cycle by the managing node according to setup of a dormant time central managing function and notifying dormancy expiration to the corresponding dormant node.

摘要翻译： 提供了一种用于管理无线传感器网络中的休眠节点的方法。 该方法包括以下步骤：a）获取和存储关于由管理节点管理的至少一个集群中登记在对应集群中的传感器节点的距离和位置的信息; b）由所述管理节点选择所述传感器节点中的休眠对象节点; c）通过到休眠对象节点的信标消息发送休眠对象节点进入休眠状态预定时间的休眠信息，并创建休眠节点管理表; 以及d）根据休眠时间中央管理功能的设置，通过管理节点更新每个信标周期的休眠节点管理表的休眠时间，并将休眠期间通知给相应的休眠节点。

公开(公告)号：US08040828B2

公开(公告)日：2011-10-18

申请号：US12085784

申请日：2006-11-29

申请人： Yong-Sun Kim ,  Se-Han Kim ,  Woo-Yong Lee ,  Hyun Lee ,  Yoon-Mee Doh ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Yong-Sun Kim ,  Se-Han Kim ,  Woo-Yong Lee ,  Hyun Lee ,  Yoon-Mee Doh ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08C17/00 ,  H04H20/71

CPC分类号： H04L41/00 ,  H04L12/12 ,  H04L41/12 ,  H04W52/0216 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/164

摘要： Provided is a method for managing dormant nodes in a wireless sensor network. The method includes the steps of: a) acquiring and storing information on distance and location of sensor nodes registered in a corresponding cluster among at least one cluster managed by a managing node; b) selecting a dormant object node among the sensor nodes by the managing node; c) transmitting dormant information that the dormant object node should go into a dormant state for a predetermined period through a beacon message to the dormant object node and creating a dormant node management table; and d) updating a dormant time of the dormant node management table every beacon cycle by the managing node according to setup of a dormant time central managing function and notifying dormancy expiration to the corresponding dormant node.

摘要翻译： 提供了一种用于管理无线传感器网络中的休眠节点的方法。 该方法包括以下步骤：a）获取和存储关于由管理节点管理的至少一个集群中登记在对应集群中的传感器节点的距离和位置的信息; b）由所述管理节点选择所述传感器节点之间的休眠对象节点; c）通过到休眠对象节点的信标消息发送休眠对象节点进入休眠状态预定时间的休眠信息，并创建休眠节点管理表; 以及d）根据休眠时间中央管理功能的设置，通过管理节点更新每个信标周期的休眠节点管理表的休眠时间，并将休眠期间通知给相应的休眠节点。

公开(公告)号：US20080316105A1

公开(公告)日：2008-12-25

申请号：US12097406

申请日：2006-12-12

申请人： Nak-Seon Seong ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Nak-Seon Seong ,  Choon-Sik Yim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G01S5/00

CPC分类号： G01S5/12

摘要： Provided is a method and apparatus for locating a transmitter. The apparatus for locating a transmitter, including: an antenna having an antenna array for receiving first and second frequency signals transmitted from the transmitter and measuring an angle of the transmitter; a range of transmission (ROT) calculating unit for calculating the range of transmission of the transmitter based on phase difference between the first and second frequency signals; an angle of arrival (AoA) calculating unit for calculating the angle of the transmitter based on phase difference of common frequency signals received in the antenna; and a transmission location determining unit for determining the location of the transmitter based on the range of transmission and the angle of arrival of the transmitter.

摘要翻译： 提供了一种用于定位发射机的方法和装置。 一种用于定位发射机的装置，包括：具有天线阵列的天线，用于接收从发射机发送的第一和第二频率信号，并测量发射机的角度; 传输范围（ROT）计算单元，用于基于第一和第二频率信号之间的相位差计算发射机的发射范围; 一个到达角度（AoA）计算单元，用于基于在天线中接收的公共频率信号的相位差来计算发射机的角度; 以及发送位置确定单元，用于基于发送的范围和发送器的到达角度确定发送器的位置。

公开(公告)号：US20100008275A1

公开(公告)日：2010-01-14

申请号：US12443646

申请日：2007-06-01

申请人： In-Hwan Lee ,  Chang-Sub Shin ,  Sang-Gi Hong ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： In-Hwan Lee ,  Chang-Sub Shin ,  Sang-Gi Hong ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08C17/00 ,  H04J3/06

CPC分类号： H04J3/0658 ,  H04W52/0219 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/144

摘要： Provided are a node synchronization system for low-power in a sensor network and a method thereof. The node synchronization system includes: a network transmitting means for transmitting information on a synchronization time difference to the sensing data collecting means and transmitting sensing data to a network; the sensing data collecting means for receiving synchronization time information from the network transmitting means, being synchronized with the network transmitting means, collecting the sensing data from a sensing means, and transmitting the sensing data to the network transmitting means; and the sensing means for receiving synchronization time information from the sensing data collecting means, being synchronized with the sensing data collecting means, sensing a sensing peripheral environment information, and transmitting the sensing data to the sensing data collecting means.

摘要翻译： 提供了一种用于传感器网络中的低功率的节点同步系统及其方法。 节点同步系统包括：网络发送装置，用于向感测数据采集装置发送关于同步时间差的信息，并将感测数据发送到网络; 感测数据收集装置，用于从网络发送装置接收与网络发送装置同步的同步时间信息，从感测装置收集感测数据，并将感测数据发送到网络发送装置; 以及感测装置，用于从感测数据采集装置接收与感测数据采集装置同步的同步时间信息，感测感测周边环境信息，并将感测数据传送到感测数据采集装置。

公开(公告)号：US08254342B2

公开(公告)日：2012-08-28

申请号：US12517556

申请日：2007-10-24

申请人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Hoon Jeong ,  Jong-Oh Lee ,  Jong-Young Lee ,  Sun-Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04J3/00

CPC分类号： H04W72/1278 ,  H04L45/04 ,  H04W40/00 ,  H04W48/16 ,  H04W72/12 ,  H04W84/18

摘要： Provided is a method for determining superframe to efficiently perform beacon scheduling by allocating superframe lengths which are different according to a routing depth of sensor nodes in a ZigBee based wireless sensor network. The method for determining a superframe for beacon scheduling, includes the steps of: receiving a beacon from a neighboring node and grasping information on a superframe used by the neighboring nodes; and determining a transmission time and a length of own superframe based on superframe information of the grasped neighboring node.

摘要翻译： 提供了一种通过分配根据基于ZigBee的无线传感器网络中的传感器节点的路由深度而不同的超帧长度来确定超帧以有效地执行信标调度的方法。 用于确定信标调度的超帧的方法包括以下步骤：从相邻节点接收信标并且掌握由相邻节点使用的超帧的信息; 并且基于所掌握的相邻节点的超帧信息来确定自身超帧的传输时间和长度。

公开(公告)号：US08102263B2

公开(公告)日：2012-01-24

申请号：US11931222

申请日：2007-10-31

申请人： Junho Yeo ,  Josef Preishuber-Pfluegl ,  Alex Janek ,  Andreas Schuhal ,  Hae-Won Son ,  Jae-Young Jung ,  Hee-Sook Mo ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Junho Yeo ,  Josef Preishuber-Pfluegl ,  Alex Janek ,  Andreas Schuhal ,  Hae-Won Son ,  Jae-Young Jung ,  Hee-Sook Mo ,  Ji-Hoon Bae ,  Gil-Young Choi ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08B13/14

CPC分类号： G06K19/0723 ,  G06K19/0705 ,  G06K19/0717

摘要： A passive tag including a volatile memory is provided. The passive tag includes: a sensing unit which senses or measures information about environmental surroundings of the tag; a volatile memory; a non-volatile memory; and a control unit which firstly stores resultant data sensed or measured by the sensing unit in the volatile memory and then moves the data stored in the volatile memory to the non-volatile memory according to pre-set conditions. Therefore, the life of the tag is prolonged and stability of important data can be secured.

摘要翻译： 提供了包括易失性存储器的无源标签。 无源标签包括：感测单元，其感测或测量关于标签的环境环境的信息; 易失记录; 非易失性存储器; 以及控制单元，其首先将由感测单元感测或测量的结果数据存储在易失性存储器中，然后根据预设条件将存储在易失性存储器中的数据移动到非易失性存储器。 因此，标签的寿命延长，可以确保重要数据的稳定性。