公开(公告)号：US20110002251A1

公开(公告)日：2011-01-06

申请号：US12667298

申请日：2008-07-11

申请人： Chang Sub Shin ,  Gwang Ja Jin ,  So Young Hwang ,  Yoonmee Doh ,  Bong Soo Kim ,  Cheol Sig Pyo ,  Jong-Suk Chae

发明人： Chang Sub Shin ,  Gwang Ja Jin ,  So Young Hwang ,  Yoonmee Doh ,  Bong Soo Kim ,  Cheol Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04W52/02 ,  H04W56/00 ,  H04L12/28 ,  H04J3/06

CPC分类号： H04J3/0679 ,  H04J3/0667 ,  H04W56/002 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22

摘要： A time synchronization method in a wireless sensor network, a low power routing method using a reservation scheme, and an apparatus for performing the method are provided. The time synchronization method in the wireless sensor network may include: receiving a first synchronization request command packet from a parent node that manages time synchronization for a predetermined synchronization region; receiving, from the parent node, a second synchronization request command packet that has a transmission timestamp value of the first synchronization request command packet; and performing time synchronization for a child node based on a reception time of the first synchronization request command packet, a reception time of the second synchronization request command packet, and the transmission timestamp value of the first synchronization request command packet.

摘要翻译： 提供无线传感器网络中的时间同步方法，使用预约方案的低功率路由方法以及用于执行该方法的装置。 无线传感器网络中的时间同步方法可以包括：从管理预定同步区域的时间同步的父节点接收第一同步请求命令分组; 从所述父节点接收具有所述第一同步请求命令分组的传输时间戳值的第二同步请求命令分组; 以及基于所述第一同步请求命令分组的接收时间，所述第二同步请求命令分组的接收时间和所述第一同步请求命令分组的传输时间戳值来执行子节点的时间同步。

公开(公告)号：US08848584B2

公开(公告)日：2014-09-30

申请号：US12667298

申请日：2008-07-11

申请人： Chang Sub Shin ,  Gwang Ja Jin ,  So Young Hwang ,  Yoonmee Doh ,  Bong Soo Kim ,  Cheol Sig Pyo ,  Jong-Suk Chae

发明人： Chang Sub Shin ,  Gwang Ja Jin ,  So Young Hwang ,  Yoonmee Doh ,  Bong Soo Kim ,  Cheol Sig Pyo ,  Jong-Suk Chae

IPC分类号： G08C17/00 ,  H04J3/06 ,  H04W56/00

CPC分类号： H04J3/0679 ,  H04J3/0667 ,  H04W56/002 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22

摘要： A time synchronization method in a wireless sensor network, a low power routing method using a reservation scheme, and an apparatus for performing the method are provided. The time synchronization method in the wireless sensor network may include: receiving a first synchronization request command packet from a parent node that manages time synchronization for a predetermined synchronization region; receiving, from the parent node, a second synchronization request command packet that has a transmission timestamp value of the first synchronization request command packet; and performing time synchronization for a child node based on a reception time of the first synchronization request command packet, a reception time of the second synchronization request command packet, and the transmission timestamp value of the first synchronization request command packet.

摘要翻译： 提供无线传感器网络中的时间同步方法，使用预约方案的低功率路由方法以及用于执行该方法的装置。 无线传感器网络中的时间同步方法可以包括：从管理预定同步区域的时间同步的父节点接收第一同步请求命令分组; 从所述父节点接收具有所述第一同步请求命令分组的传输时间戳值的第二同步请求命令分组; 以及基于所述第一同步请求命令分组的接收时间，所述第二同步请求命令分组的接收时间和所述第一同步请求命令分组的传输时间戳值来执行子节点的时间同步。

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：US20100220653A1

公开(公告)日：2010-09-02

申请号：US12682920

申请日：2008-07-30

申请人： So-Young Hwang ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Moon-Seong Kim ,  Eui-Hoon Jeong ,  Young-Cheol Bang

发明人： So-Young Hwang ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae ,  Moon-Seong Kim ,  Eui-Hoon Jeong ,  Young-Cheol Bang

IPC分类号： H04W4/00

CPC分类号： H04W40/22 ,  H04L45/24 ,  H04W40/10 ,  H04W40/28 ,  H04W76/10 ,  Y02D70/166 ,  Y02D70/326 ,  Y02D70/39

摘要： A multi-path routing method is provided a multi-path routing method for selecting appropriate multiple paths when information sensed from a source node is transmitted to a sink node in wireless sensor networks. The source node for transmitting the sensed information first transmits a Hello message to the sink node to identify the existence and position of the sink node. The sink node receives the Hello message and then re-transmits the Hello message with respect to all the received Hello messages. Respective middle nodes accumulate distances between the middle nodes while the Hello message is transmitted to the source node through a reverse path of the Hello message, and all the middle nodes maintain a real distance from the sink node. The source node receiving all the Hello messages can rout a plurality of appropriate paths through Hop-by-hop to the sink node by providing respective weights to an energy remaining amount, an appropriate transmission radius and a real distance from the sink node. Accordingly, priorities can be provided to lifetime of the source node, average energy consumption and the shortest path by adjusting the respective weights when routing the plurality of paths. In addition, appropriate paths can be routed considering the transmission success rate of a path, and a load balancing effect can be obtained using path cost.

摘要翻译： 提供多路径路由方法，用于当从源节点感知的信息被发送到无线传感器网络中的汇聚节点时，选择适当的多个路径的多路径路由方法。 用于发送感测信息的源节点首先向宿节点发送一个Hello消息，以识别宿节点的存在和位置。 汇聚节点接收到Hello消息，然后针对所有收到的Hello消息重新发送Hello消息。 各个中间节点累积中间节点之间的距离，而Hello消息通过Hello消息的反向路径发送到源节点，并且所有中间节点与sink节点保持实际距离。 接收所有Hello消息的源节点可以通过向能量节点提供相应的权重，从能量剩余量，适当的传输半径以及从宿节点的实际距离，逐跳跳过多个适当的路径。 因此，当路由多个路径时，可以通过调整相应权重来提供源节点的寿命，平均能量消耗和最短路径的优先级。 此外，考虑到路径的传输成功率，可以路由适当的路径，并且可以使用路径开销获得负载平衡效果。

公开(公告)号：US08116243B2

公开(公告)日：2012-02-14

申请号：US11539084

申请日：2006-10-05

申请人： Yao Zhiying ,  Yoonmee Doh ,  Sung Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Yao Zhiying ,  Yoonmee Doh ,  Sung Joong Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04B7/00 ,  H04L12/28 ,  H04L29/06 ,  H04L9/08 ,  H04W4/00 ,  G08B1/08 ,  G06F15/18

CPC分类号： G08B21/12 ,  H04W4/70 ,  H04W12/10 ,  H04W12/12 ,  H04W84/18

摘要： The present invention relates to a sensor network having node architecture for performing trust management of neighboring sensor nodes, and to an adaptive method for performing trust management of neighboring sensor nodes for monitoring security in the sensor network. The sensor network includes a base station and a plurality of sensor nodes for reporting sensed information packets to the base station through radiofrequency signals relayed by other sensor nodes. A judge sensor node may have a trust estimator in its node architecture to evaluate trustworthiness of a neighboring suspect sensor node by determining a personal reference and receiving personal references from jury sensor nodes. Based on the trustworthiness of the suspect, the judge may modify a route for transmitting packets to the base station.

摘要翻译： 本发明涉及具有用于执行相邻传感器节点的信任管理的节点架构的传感器网络，以及用于执行相邻传感器节点的信任管理以便监测传感器网络中的安全性的自适应方法。 传感器网络包括基站和多个传感器节点，用于通过由其他传感器节点中继的射频信号向基站报告感测信息分组。 判断传感器节点可以在其节点架构中具有信任估计器，以通过确定个人参考并从陪审团传感器节点接收个人参考来评估邻近可疑传感器节点的可信赖性。 根据嫌疑人的可信赖性，法官可以修改用于向基站发送数据包的路由。

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：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：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：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：US20110116414A1

公开(公告)日：2011-05-19

申请号：US12808509

申请日：2008-03-18

申请人： Eun-Ju Lee ,  Jae-Hong Ryu ,  Byeong-Cheol Choi ,  Bong-Wan Kim ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

发明人： Eun-Ju Lee ,  Jae-Hong Ryu ,  Byeong-Cheol Choi ,  Bong-Wan Kim ,  Bong-Soo Kim ,  Cheol-Sig Pyo ,  Jong-Suk Chae

IPC分类号： H04W4/00 ,  H04L12/28

CPC分类号： H04W72/08 ,  H04W24/04 ,  H04W84/18

摘要： Provided are a bridge system, a network management server, and communication methods at the bridge system and the network management server for efficient communication in a wireless sensor network (WSN). The communication method at the network management server includes communicating with bridge systems connected with a plurality of radio frequency (RF) regions within a personal area network (PAN) composed of sensor nodes using the same wireless channel, in which radio signals of the sensor nodes within the PAN reach the bridge systems, searching for a new channel to be used and an alternative bridge system which is to perform a channel change into the new channel based on information about the bridge systems upon receipt of an association failure report message from an error bridge system which is reported of an association failure from the RF region from among the bridge systems, sending a channel change request message to the found alternative bridge system, and adjusting channel information for the found alternative bridge system to the new channel and replacing information about sensor nodes connected to the found alternative bridge system with information about sensor nodes that are newly connected with the found alternative bridge system through the new channel.

摘要翻译： 提供桥接系统，网络管理服务器，桥接系统和网络管理服务器的通信方法，用于无线传感器网络（WSN）中的高效通信。 网络管理服务器的通信方法包括与使用相同无线信道的由传感器节点组成的个人区域网络（PAN）内的多个射频（RF）区域连接的桥接系统进行通信，其中传感器节点 在PAN内到达桥系统，搜索要使用的新信道和替代桥接系统，该桥接系统在从错误接收到关联故障报告消息时基于关于桥系统的信息来执行信道改变到新信道 报告了来自桥接系统中的RF区域的关联失败的桥接系统，向找到的替代桥接系统发送信道改变请求消息，以及将找到的替代网桥系统的信道信息调整到新信道，并替换关于 传感器节点连接到找到的替代桥接系统，其中包含有关传感器节点的信息 通过新渠道与找到的替代桥梁系统新连接。