公开(公告)号：KR20100010779A

公开(公告)日：2010-02-02

申请号：KR20080071817

申请日：2008-07-23

Applicant: KOREA ELECTRONICS TECHNOLOGY

Inventor： KWON TAI GIL ,  CHO JIN WOONG ,  LIM SEUNG OK ,  LEE JANG YEON ,  LEE HYEON SEOK ,  WON YUN JAE

IPC: G01C15/02 ,  G01S11/02 ,  H04W84/18

Abstract: PURPOSE: A distance measurement system and a method are provided to minimize a distance error by calculating a separation distance in consideration of an RSSI value. CONSTITUTION: A distance measurement system comprises one or more target node(10) and a reference node(20). The target node transmits a distance measurement acknowledge message according to a received ranging require-message. According to the strength of a radio signal about the distance measurement acknowledge message, the reference node checks whether the separation distance from the target node is lower than a fixed critical short distance or not. The reference node decides the error correction in a CSS mode in consideration of the radio signal strength and measures the separation distance.

Abstract translation: 目的：提供距离测量系统和方法，以通过考虑RSSI值计算间隔距离来最小化距离误差。 构成：距离测量系统包括一个或多个目标节点（10）和参考节点（20）。 目标节点根据接收到的测距需求消息发送距离测量确认消息。 根据关于距离测量确认消息的无线电信号的强度，参考节点检查与目标节点的分离距离是否低于固定的临界短距离。 考虑到无线电信号强度，参考节点以CSS模式确定纠错，并测量分离距离。