东北大学学报(自然科学版) ›› 2024, Vol. 45 ›› Issue (8): 1115-1122.DOI: 10.12068/j.issn.1005-3026.2024.08.007

• 机械工程 • 上一篇    下一篇

基于TOA与AOA算法的室内定位方法

郭立新, 王云鹏   

  1. 东北大学 机械工程与自动化学院,辽宁 沈阳 110819
  • 收稿日期:2023-04-11 出版日期:2024-08-15 发布日期:2024-11-12
  • 作者简介:郭立新(1968-),男,辽宁沈阳人,东北大学教授,博士生导师.
  • 基金资助:
    国家自然科学基金资助项目(52275283)

Indoor Positioning Method Based on TOA and AOA Algorithms

Li-xin GUO, Yun-peng WANG   

  1. School of Mechanical Engineering & Automation,Northeastern University,Shenyang 110819,China. Corresponding author: WANG Yun-peng,E-mail: gebaimian@qq. com
  • Received:2023-04-11 Online:2024-08-15 Published:2024-11-12

摘要:

为了解决传统室内定位技术成本较高、稳定性差以及难于部署等问题,提出一种将到达时间(time of arrival,TOA)与到达角(angle of arrival,AOA)相结合的室内定位系统.该系统由定位基站与被控定位单元组成,其特征在于使用对射式布置的超声波传感器获取定位基站与被控定位单元之间的距离特征,利用角度传感器获取被控定位单元相对于定位基站的角度特征,以单基站就实现了精确的室内定位过程.分析了该系统基本结构与原理,建立定位与控制模型,在一定范围内对其定点定位精度与跟随定位精度进行了实验验证.实验结果表明:该系统结构简单,易于安装布置,鲁棒性强,在测试范围内的最大定点定位误差不超过5 cm,跟随定位误差不超过15 cm.

关键词: 室内定位, 超声波, AOA算法, TOA算法, 传感器

Abstract:

To solve the problems of high cost, poor stability, and difficulty in deployment, a new indoor positioning system combining time of arrival (TOA) and angle of arrival (AOA) is proposed. The system is composed of the positioning base station and the controlled positioning unit. It is characterized by using the ultrasonic sensor arranged in the firing type to obtain the distance characteristics between the positioning base station and the controlled positioning unit, and using the angle sensor to obtain the angle characteristics of the controlled positioning unit relative to the positioning base station. A single base station is used to realize the accurate indoor positioning process. The basic structure and principle of the system are analyzed, the positioning model is established, and the fixed point positioning accuracy and tracking positioning accuracy are experimentally verified in a certain range. The experimental results show that the system has a simple structure, easy installation and strong robustness. The maximum fixed?point positioning error within the test range is less than 5 cm, and the tracking positioning error is less than 15 cm.

Key words: indoor positioning, ultrasonic wave, AOA(angle of arrival) algorithm, TOA (time of arrival) algorithm, sensor

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