专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2009069869A1 TIME SYNCHRONIZATION METHOD IN WIRELESS SENSOR NETWORK 审中-公开
标题翻译：无线传感器网络中的时间同步方法
公开(公告)号：WO2009069869A1
公开(公告)日：2009-06-04
申请号：PCT/KR2008/003295
申请日：2008-06-12
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KIM, Kyeong Tae , JANG, Byung Tae , CHOI, Jeong Dan , KIM, Do Hyun , YOO, Jae Jun , SUNG, Kyung Bok , KIM, Jung Sook , LIM, Jae Han , JANG, Jeong Ah
发明人： KIM, Kyeong Tae , JANG, Byung Tae , CHOI, Jeong Dan , KIM, Do Hyun , YOO, Jae Jun , SUNG, Kyung Bok , KIM, Jung Sook , LIM, Jae Han , JANG, Jeong Ah
IPC分类号： H04L7/10
CPC分类号： H04J3/0667 , H04J3/0673 , H04W12/12 , H04W84/18
摘要： The present invention relates to a time synchronization method in a wireless sensor network. In the present invention, if an upper node requests a lower reference node to start time synchronization, the lower reference node broadcasts a first sync reference packet. The upper node receives the first sync reference packet and transmits the first sync reference packet reception time to the lower reference node. The lower reference node broadcasts the first sync reference packet reception time, such that the other nodes perform time synchronization on the basis of the first sync reference packet reception time. Meanwhile, the lower reference node estimates the first sync reference packet reception time of the upper node to calculate the reception estimation time, and transmits the reception estimation time to a determination node that is two hops anterior to the lower reference node. Therefore, the determination node compares the reception time received from the upper node and the reception estimation time received from the lower reference node and determines whether a capture attack on the upper node has occurred.
摘要翻译：本发明涉及无线传感器网络中的时间同步方法。在本发明中，如果上层节点请求较低参考节点开始时间同步，则下参考节点广播第一同步参考分组。上级节点接收第一同步参考分组，并将第一同步参考分组接收时间发送到下参考节点。下参考节点广播第一同步参考分组接收时间，使得其他节点基于第一同步参考分组接收时间执行时间同步。同时，下参考节点估计上级节点的第一同步参考分组接收时间以计算接收估计时间，并且将接收估计时间发送到作为下参考节点之前的两跳的确定节点。因此，确定节点比较从上层节点接收到的接收时间和从较低参考节点接收的接收估计时间，并确定是否发生了对上层节点的捕获攻击。

2. 发明申请

WO2009044995A1 APPARATUS AND METHOD FOR MEASURING THE VELOCITY AND ACCELERATION OF A VEHICLE USING SAD ALGORITHM 审中-公开
标题翻译：使用SAD算法测量车辆速度和加速度的装置和方法
公开(公告)号：WO2009044995A1
公开(公告)日：2009-04-09
申请号：PCT/KR2008/004428
申请日：2008-07-30
申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , PELCZAR, Christopher , KIM, Jung-Sook , JANG, Byung-Tae , CHOI, Jeong-Dan , KIM, Do-Hyun , YOO, Jae-Jun , SUNG, Kyung-Bok , JANG, Jeong-Ah , LIM, Jae-Han , KIM, Kyeong-Tae
发明人： PELCZAR, Christopher , KIM, Jung-Sook , JANG, Byung-Tae , CHOI, Jeong-Dan , KIM, Do-Hyun , YOO, Jae-Jun , SUNG, Kyung-Bok , JANG, Jeong-Ah , LIM, Jae-Han , KIM, Kyeong-Tae
IPC分类号： G08G1/052
CPC分类号： G08G1/052 , B60W2050/0001 , G01P15/16
摘要： Provided are a single-board type vehicle driving information measuring apparatus and method using a sum of absolute difference (SAD) hardware accelerator. In the vehicle driving information measuring apparatus and method, time differences between vehicle sensing signals sensed by two or more sensing units are accurately calculated in real time by the SAD hardware accelerator, and the velocity and acceleration of a vehicle can be accurately calculated based on the accurate time differences between the vehicle sensing signals. The vehicle driving information measuring apparatus is operated in two separate modes, that is, a vehicle sensing mode and a velocity measuring mode. Accordingly, power consumption of the apparatus can be minimized. In addition, the apparatus can be provided with a wireless transceiver, so that the apparatus can be constructed and operated without external cables. Further, functional blocks of the apparatus can be powered separately.
摘要翻译：提供了使用绝对差（SAD）硬件加速器的总和的单板式车辆驾驶信息测量装置和方法。在车辆驾驶信息测量装置和方法中，通过SAD硬件加速器实时地精确地计算由两个以上的感测单元感测到的车辆感测信号之间的时差，能够基于车辆驾驶信息的速度和加速度，准确的车辆感应信号之间的时差。车辆驾驶信息测量装置以两种分开的模式操作，即车辆感测模式和速度测量模式。因此，可以使设备的功耗最小化。此外，该设备可以设置有无线收发器，使得该设备可以在没有外部电缆的情况下被构造和操作。此外，装置的功能块可以单独供电。

3. 发明申请

WO2006064995A1 SYSTEM AND METHOD FOR RESERVING AND TRANSMITTING TELEMATICS CONTENTS 审中-公开
标题翻译：用于保留和发送电话内容的系统和方法
公开(公告)号：WO2006064995A1
公开(公告)日：2006-06-22
申请号：PCT/KR2004/003536
申请日：2004-12-30
申请人： Electronics and Telecommunications Research Institute , CHOI, Jeong-Dan , KIM, Ju-Wan , JANG, Byung-Tae , JEONG, Tae-Il
发明人： CHOI, Jeong-Dan , KIM, Ju-Wan , JANG, Byung-Tae , JEONG, Tae-Il
IPC分类号： G06F17/00
CPC分类号： G06Q50/30 , G06Q10/02
摘要： Provided are a system and method for reserving and transmitting telematics contents. The system and method are provided to store reservation information transmitted from a user and transmit reservation contents to a telematics terminal at reservation time so that the telematics terminal receives/stores the contents in advance in an idle condition and conveniently uses the contents without transmission delay. The system includes: a telematics contents reserving and transmitting system, including: a contents storing block for storing and managing contents provided from a contents provider (CP); a contents list storing block for storing and managing a list for contents stored in the contents storing block; a reserving block for reading the contents list from the contents storing block based on the contents transmitting/reserving request signal from the outside, transmitting the contents list to a requesting part, receiving a reservation of specific contents to be transmitted to a telematics terminal and storing the reservation information; a reservation information storing block for storing reservation information by control of the reserving block; and a transmitting block for reading the contents from the contents storing block based on the reservation information stored in the reservation information storing block and transmitting the contents to the telematics terminal.
摘要翻译：提供了保留和传送远程信息处理内容的系统和方法。提供该系统和方法来存储从用户发送的预约信息，并在预留时间将预约内容发送到远程信息处理终端，使得远程信息处理终端预先在空闲状态下接收/存储内容，并且方便地使用内容而不传输延迟。该系统包括：远程信息处理内容预留和发送系统，包括：内容存储块，用于存储和管理从内容提供商（CP）提供的内容; 内容列表存储块，用于存储和管理存储在内容存储块中的内容的列表; 根据来自外部的内容发送/保留请求信号从内容存储块读取内容列表的预留块，将内容列表发送到请求部分，接收要发送到远程信息处理终端的特定内容的预约，并存储预订信息; 预约信息存储块，用于通过所述保留块的控制来存储预约信息; 以及发送块，用于基于存储在预约信息存储块中的预约信息从内容存储块读取内容，并将内容发送到远程信息处理终端。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式