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    • 28. 发明授权
    • 단말기의 추정위치 보정장치 및 보정방법
    • 校正装置和估计终端位置的方法
    • KR101217770B1
    • 2013-01-02
    • KR1020120007349
    • 2012-01-25
    • 한국과학기술원
    • 한영남남성호강원호
    • G01S5/14
    • PURPOSE: An estimated position correcting apparatus of a terminal using a distance between the terminal and coordinates of an adjacent terminal in which dead reckoning is in progress and a correcting method thereof are provided to correct an estimated position of a terminal of a user. CONSTITUTION: An estimated position correcting apparatus comprises a dead reckoning unit(10), a communications unit(20), and a distance measuring unit(30), and a correcting unit(40). The dead reckoning unit estimates a moving direction and a relative moving distance from the initial position of a self-node for a predetermined time and calculates estimated coordinates. The communications unit establishes a link between the self-node and an adjacent node by attempting connection to the adjacent node around the self-node. The communications unit receives estimated coordinates of the adjacent node from the adjacent node. The distance measuring unit calculates the difference between the self-node and the adjacent node through an electric field strength value of the adjacent node received by the communications unit. The correcting unit establishes a space of points on a circle within a distance estimated by the distance measuring unit. The correcting unit estimates the nearest coordinates among estimated coordinates of the self-node received from the dead reckoning unit, which are included in the space, as a correcting coordinate. [Reference numerals] (10) Dead reckoning unit; (20) Communications unit; (30) Distance measuring unit; (40) Correcting unit
    • 目的:提供一种终端的估计位置校正装置,其使用终端与其中进行航位推算的相邻终端的坐标之间的距离及其校正方法来校正用户的终端的估计位置。 构成:估计位置校正装置包括推算单元(10),通信单元(20)和距离测量单元(30),以及校正单元(40)。 航位推算单元在预定时间内估计与自身节点的初始位置相对的移动方向和相对移动距离,并且计算估计坐标。 通信单元通过尝试连接到自身节点周围的相邻节点来建立自身节点和相邻节点之间的链路。 通信单元从相邻节点接收相邻节点的估计坐标。 距离测量单元通过由通信单元接收的相邻节点的电场强度值来计算自身节点和相邻节点之间的差异。 校正单元在由距离测量单元估计的距离内建立圆上的点的空间。 校正单元估计从包括在空间中的从推算单元接收的自节点的估计坐标之间的最近坐标作为校正坐标。 (附图标记)(10)推算单元; (20)通讯单位; (30)距离测量单元; (40)校正单元