摘要
随着智能化的不断普及,业内对于高精度高可靠的室内定位技术的需求越来越迫切。本文通过对超声波定位技术的改进研究,设计了一种基于超声波传感器的高精度定位系统。通过改造超声波发射头,采用多个发射头呈花瓣状布置,同时每个接收头往中心区域倾斜45度,实现更大覆盖范围。使用Si4432无线透传模块实现数据通信和时间同步,采用TOA算法计算定位点和节点间的距离,通过三点定位法求得目标点坐标,并通过数据筛选和均值滤波获得更稳定更高精度的定位结果。
With the continuous popularization of intelligence,the demand for high-precision and highly reliable indoor positioning technology has become increasingly urgent.In this paper,through the improvement of ultrasonic positioning technol-ogy,a high-precision positioning system based on ultrasonic sensors is designed.By transforming the ultrasonic transmitter head,multiple emitters are arranged in a petal shape,and each receiver head is inclined 45 degrees to the center area to achieve a greater coverage.Using Si4432 wireless transmission module to achieve data communication and time synchronization,the use of TOA algorithm to calcu-late the distance between the positioning point and the node,through the three-point positioning method to obtain the target point coordinates,and through data fltering and mean fltering to obtain a more stable and high precision Positioning results.
作者
潘丽杰
徐本亮
赵飞
PAN Li-jie;XU Ben-liang;ZHAO Fei(Yangtze Delta Region Institute of Tsinghua University,Zhejiang,JiaXing,314000)
出处
《电子世界》
2018年第18期113-115,共3页
Electronics World
基金
集成自主探测器的分析型工业热像仪开发和应用(2013YQ470767)~~
关键词
超声波
室内定位
TOA
高精度
三点定位法
无线透传
ultrasonic
indoor positioning
TOA
high-precision
three-point positioning method
