公开(公告)号：KR101099364B1

公开(公告)日：2011-12-29

申请号：KR1020100075234

申请日：2010-08-04

Applicant: 한국전기연구원

Inventor： 강지명 ,  박영진 ,  이순우 ,  강문경 ,  김관호

IPC: G01S5/06

Abstract: PURPOSE: A wireless position measurement method which uses a time-difference-of-arrival(TDOA) method with a weighted value is provided to reduce influence of a beacon of a relatively big error, thereby accurately calculating the position of a target tag. CONSTITUTION: A plurality of reference tags is located within a region predetermined in beforehand(S110). A pair of beacons outputs distribution with respect to arrival time difference measured with a TDOA(Time Difference Of Arrival) method for each reference tag(S120). The position of a measurement target tag is determined(S130). The reference tag most adjacent to the measured position of the target tag is selected(S140). The position of the measurement target tag is recalculated using the distribution with respect to the time difference of the reference tag as a weighted value(S150). The position of recalculated target tag is considered as the position of the target tag(S160).

Abstract translation: 目的：提供使用具有加权值的到达时差（TDOA）方法的无线位置测量方法，以减少相对较大误差的信标的影响，从而精确地计算目标标签的位置。 构成：多个参考标签位于预先确定的区域内（S110）。 一对信标相对于每个参考标签的TDOA（到达时差）方法测量的到达时间差输出分布（S120）。 确定测量目标标签的位置（S130）。 选择与目标标签的测量位置最相邻的参考标签（S140）。 使用关于参考标签的时间差的分布作为加权值来重新计算测量目标标签的位置（S150）。 重新计算的目标标签的位置被认为是目标标签的位置（S160）。