Passive positioning method of label

一种标签被动定位方法

Abstract

The invention discloses a passive positioning method of a label, relates to the technical field of electronic information, and aims to solve the problems of complex system and risen building and maintenance cost caused by the fact that time synchronization between anchor nodes or between the label and the anchor nodes is generally required in the existing passive positioning method of the label. The method comprises the following steps: deploying a plurality of anchor nodes of fixed coordinates and a fixed position label of a fixed coordinate in a region; emitting positioning broadcast packets by the anchor nodes; receiving the positioning broadcast packet emitted by each anchor node by the fixed position label and mobile labels to obtain a transmission anchor node identifier, and calculating the time of arrival of the positioning broadcast packet; transmitting the obtained anchor node identifier and the accurate time of arrival corresponding to the positioning broadcast packet to each mobile label by the fixed position label; generating an equation set with the mobile label coordinate value as a variable by each mobile label according to the information and further calculating the coordinate value of the mobile label. When the method is used for realizing passive positioning of the label, the time synchronization between the anchor nodes or between the labels and the anchor nodes is not required, so that the complexity of the system is reduced, and the system building and maintenance cost is reduced.
本发明公开一种标签被动定位方法,涉及电子信息技术领域,解决了现有标签被动定位方法中,通常需要锚节点之间或标签与锚节点之间的时间同步,从而导致系统复杂,建设与维护成本升高的问题。该方法如下:区域内部署多个固定坐标的锚节点和一个固定坐标的固定位置标签;锚节点发出定位广播包;固定位置标签和移动标签接收到各个锚节点所发出的定位广播包,得到发送锚节点标识,计算出该定位广播包的到达时间;固定位置标签将得到的锚节点标识和对应定位广播包的准确到达时间,发送给各个移动标签;各个移动标签根据上述信息,生成以移动标签坐标值为变量的方程组,并进一步计算出移动标签的坐标值。本发明所述方法用于实现标签被动定位时,不需要在锚节点之间或标签与锚节点之间实现时间同步,从而降低了系统复杂度,并降低了系统建设与维护成本。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (0)

    Publication numberPublication dateAssigneeTitle

NO-Patent Citations (0)

    Title

Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-105929365-ASeptember 07, 2016严炜一种uwb高精度定位系统及定位方法