基于Android设备的白光光通信技术的研究

发布时间：2018-03-20 19:51

本文选题：白光光通信　切入点：并行通信　出处：《黑龙江大学》2016年硕士论文　论文类型：学位论文

【摘要】：白光LED由于绿色环保节能,将逐渐成为日常照明光源。由于白光LED具有高调制速率,以白光LED作为光源的可见光通信技术逐渐引起重视。白光LED不仅可以作为照明光源还可以作为通信信号源的特征,使白光LED可见光通信技术具有非常广阔的应用前景。白光光通信技术因保密性高、无电磁辐射非常适合在飞机、医院、矿井等通信条件特殊的环境中应用。本文以医院挂号为应用背景,研究了基于Android移动设备的可见光通信系统。该系统主要由CPLD控制的服务端和Android设备开发的客户端构成。为解决上下行链路信号在通信过程中产生的干扰,确定了空间分割信道模型。通过对Android设备的性能分析,使用LED点阵作为信源增大每帧信息的容量。在CPLD中设计了LED显示屏控制电路和信息处理电路,同时在手机上实现图像处理、信息解码和闪光灯的控制。完成了室内白光LED与Android设备的双向通信,实现了医院环境内的自助挂号功能。
[Abstract]:White LED will gradually become a daily lighting source because of its green environment and energy saving. Due to the high modulation rate of white light LED, The visible light communication technology with white LED as the light source has attracted more and more attention. White light LED can be used not only as the lighting source but also as the characteristic of the communication signal source. White light LED visible light communication technology has a very broad application prospects. White light communication technology because of high confidentiality, no electromagnetic radiation is very suitable for aircraft, hospitals, Mine and other special communication conditions in the application of the environment. This paper based on the hospital registration as the application background, The visible light communication system based on Android mobile device is studied. The system is mainly composed of the server controlled by CPLD and the client developed by Android device. In order to solve the interference of uplink and downlink signal in the communication process, By analyzing the performance of Android devices, the LED lattice is used as a source to increase the capacity of each frame of information. The control circuit and information processing circuit of LED display screen are designed in CPLD. At the same time, image processing, information decoding and flash control are realized on the mobile phone. The two-way communication between indoor white light LED and Android equipment is completed, and the self-registration function in hospital environment is realized.
【学位授予单位】：黑龙江大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN929.1

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