基于高分辨率图像传感器的单帧光学相机通信
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中国博士后科学基金(2015M581145);中国科学院国际对外合作重点项目(121835KYSB20160006);国家自然科学基金青年基金项目(61501427);福建省科技计划对外合作项目(2017I01010012)


Optical camera communication using high-resolution image sensor within a single frame
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    摘要:

    针对光学相机通信中存在的图像传感器有效像素受限以及多帧通信之间存在的通信不连续问题,提出利用高分辨率图像传感器在单帧图像中完整接收数据包的非视线信道通信方案.非视线信道的方案解决光源造成的blooming效应问题,并增加了图像传感器上的通信有效像素.同时,通过高精度的同步算法和多列信号累积,克服非视线信道带来的大衰减问题.高分辨率图像传感器可感知更高速的信号变化,从而有助于同步精度和通信速率的提高.实验结果表明:该方案可实现1.5 m距离上的2.15 kpbs通信速率,单帧内数据包长度为16 bit,满足室内定位导航、光子标记等应用需求.

    Abstract:

    In order to increase the effective area of image sensor and to avoid the interruption of communications in optical camera communications (OCC),a novel non-line-of-sight (NLOS) OCC scheme is proposed,which uses a high-resolution image sensor to receive completely a data packet within a single frame.The NLOS channel profits the mitigation of the blooming effect from the optical source,and also the increment of effective area of an image sensor for communications.Furthermore,the high-accuracy synchronization scheme has been adopted for the integration of multiple pixel columns to mitigate the signal loss in an NLOS channel.High-resolution image sensor has been applied for fast signal variation,as well as the increment of both synchronization accuracy and the data rate.The performances of OCC system with the data rate of 2.15 kpbs and a link range of 1.5 m has been verified experimentally.It has shown that a data packet of 16 bits could be reliably received within a single frame,which is applicable for indoor positioning and navigation,photonics labeling,and so on.

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戴永恒,汤璇.基于高分辨率图像传感器的单帧光学相机通信[J].南京信息工程大学学报(自然科学版),2017,9(2):185-191
DAI Yongheng, TANG Xuan. Optical camera communication using high-resolution image sensor within a single frame[J]. Journal of Nanjing University of Information Science & Technology, 2017,9(2):185-191

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  • 收稿日期:2017-02-09
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  • 在线发布日期: 2017-03-14
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