室内定位光通信平衡码编解码设计  

Design of balanced code encoding and decoding for indoor positioning optical communication

作　　者：姚迪昌 栾新源 艾佳铭 YAO Dichang;LUAN Xinyuan;AI Jiaming(School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai201600,China)

机构地区：[1]上海工程技术大学电子电气工程学院,上海201600

出　　处：《光学技术》2025年第2期203-209,共7页Optical Technique

摘　　要：可见光通信定位技术在无线通信技术中极具发展潜力和应用前景;为了提高可见光通信(VLC)在室内定位的效率及其应用范围,研究构建了一种室内定位光通信平衡码编解码系统;系统首先基于LED灯具的特性,开发了一套光条形码编码系统,利用光信号的周期性特点进行数据传输。随后,引入了先进的YOLOv8算法对发出的循环可见光编码进行精确定位,实现对编码周期的精准捕捉。此外,系统还设计了一种包含倾斜矫正和误差修正技术的解码算法,用于优化对定位到的图片的解码过程,提升数据的准确性和稳定性。实验结果表明,基于YOLOv8算法的图像识别系统能够在0.324s的平均时间内快速且准确地识别和解析由LED灯发出的编码信号,解码效率较传统方法提高了1倍;本方法大幅提升拓宽了可见光通信室内定位系统的性能,有望在未来自动化系统中发挥重要作用,促进相关行业的技术进步和发展。Visible Light Communication(VLC) positioning technology holds great potential and application prospects in the field of wireless communication. To enhance the efficiency and broaden the application scope of VLC for indoor positioning, a balanced code encoding and decoding system for optical communication-based indoor positioning are proposed. The system first develops a light barcode encoding system based on the characteristics of LED lamps, leveraging the periodic characteristics of optical signals for data transmission. Subsequently, the advanced YOLOv8 algorithm is introduced to accurately locate the cyclic visible light codes emitted, enabling accurate capture of the coding period. Additionally, a decoding algorithm incorporating skew correction and error correction techniques is designed to optimize the decoding process of the located images, thereby improving data accuracy and stability. Experimental results show that the YOLOv8-based image recognition system can quickly and accurately identify and decode the encoded signals emitted by LED lamps, with an average recognition time of 0.324 seconds. The decoding efficiency is doubled compared to traditional methods. This approach significantly enhances and extends the performance of VLC-based indoor positioning systems, showing promising potential for future automation systems and contributing to technological advancements in related industries.

关 键 词：信息光学 VLC YOLO 室内定位 可见光通信 光通信平衡码 

分 类 号：TN929.1[电子电信—通信与信息系统]