公开(公告)号：KR1020080003962A

公开(公告)日：2008-01-09

申请号：KR1020060062289

申请日：2006-07-04

Applicant: 강원대학교산학협력단 ,  대상건설시스템(주)

Inventor： 송종걸 ,  정인범 ,  김윤 ,  김용곤 ,  이상우 ,  남왕현 ,  장동휘

IPC: G08C17/02

Abstract: A managing system of a transportation facility is provided to judge state and condition of the transportation facility rapidly and reliably. A sensor part(110) is installed in a transportation facility and measures state of the transportation facility. A wireless transmission part(120) transmits data measured by the sensor part. A sate information generation part(130) generates state information of the transportation facility by comparing the transmitted data with reference data. A state information providing part(140) provides the generated state information to a user terminal(200) accessing through a communication network.

Abstract translation: 提供运输设施的管理制度，快速可靠地判断运输设施的状况和状况。 传感器部件（110）安装在运输设备中并且测量运输设备的状态。 无线发送部（120）发送由传感器部测定的数据。 状态信息生成部（130）通过将发送的数据与参考数据进行比较来生成交通设施的状态信息。 状态信息提供部（140）向通过通信网络访问的用户终端（200）提供生成的状态信息。

公开(公告)号：KR100686241B1

公开(公告)日：2007-02-22

申请号：KR1020050079281

申请日：2005-08-29

Applicant: 강원대학교산학협력단

Inventor： 김윤 ,  정인범 ,  송종걸 ,  이좌형 ,  이상우 ,  김동국 ,  박총명

IPC: H04W56/00 ,  H04W84/18 ,  H04L12/56

Abstract: A time synchronization method for wireless sensor network is provided to reduce a transform time and perform a time synchronization based on a transmission time at a reference transmitter. A time synchronization method for wireless sensor network includes the steps of: transmitting a reference packet for a time synchronization at a reference transmitter(S101), and stores the transmission time of the reference packet at the same time(S103); receiving the reference packet and storing the transmission time of the reference packet at a base station and neighboring nodes(S105); transmitting the stored receiving time of the reference packet at the base station(S107); and after receiving the receiving time of the reference packet transmitted from the base station at the neighboring nodes and the reference transmitter(S109), changing a local time corresponding to the receiving time of the reference packet(S111).

Abstract translation: 提供了用于无线传感器网络的时间同步方法，以减少变换时间并基于参考发射机处的传输时间执行时间同步。 一种用于无线传感器网络的时间同步方法，包括以下步骤：在参考发射机处发送用于时间同步的参考分组（S101），并同时存储参考分组的传输时间（S103）; 接收参考分组并在基站和相邻节点存储参考分组的传输时间（S105）; 在基站处发送所存储的参考分组的接收时间（S107）; 并且在接收到从邻近节点和基准发射机处的基站发送的参考分组的接收时间之后（S109），改变与参考分组的接收时间相对应的本地时间（S111）。