基于LED可见光的室内定位系统研究与实现
Research and Implementation of Indoor Positioning System Based on Visible Light
摘要:
近年来，室内可见光定位技术以其成本低廉、易于铺设、无电磁干扰、适用面广等特点逐渐成为室内定位技术的热门选择。文章研究了一套基于LED可见光的3灯结构室内定位系统，通过软件滤波分离各灯信号分量、三边测量的方式进行室内定位，系统整体结构简单，同时为了提高定位精度，提出了分区域进行定位的方法。为了验证系统的性能，搭建了基于STM32控制的实验平台进行实验，实验结果表明，在600 mm*600 mm的区域内定位误差基本在30 mm以内，满足室内定位需求。
Abstract:
In recent years, indoor optical
positioning technology has gradually become a popular choice for indoor positioning
technology because of its low cost, easy laying, no electromagnetic
interference, wide application and other characteristics. This paper studies a
set of indoor positioning system based on three-lamp structure of visible light.
Indoor location is achieved through software filtering to separate signal
components and three side measurements, the overall structure of the system is
simple. In order to improve the positioning accuracy, a method of sub-region
positioning is proposed. In order to verify the performance of the system, an
experimental platform based on STM32 control is built to carry out experiments.
The experimental results show that the positioning error is within 30 mm in the
area of 600 mm*600 mm, which meets the indoor positioning requirements.
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