一种基于动态二维码的近场通信系统

A Near Field Communication System Based on QR Code Sequence

由于二维码成本低廉、识别速度快在近场通信中得到了广泛应用,但单张二维码数据含量过大时普通的移动设备就无法识别,限制其在大数据量传输方面的应用。目前的解决方法主要通过图像识别分块解析大数据量的二维码,或切割原始数据生成多个二维码,利用连续播放二维码序列形成动态二维码来扩充传输数据量,由于图像识别算法的复杂性以及动态二维码传输噪声的影响,传输速率都不理想。经过对动态二维码生成进行深入研究,对一种动态二维码生成方式进行优化,结合连续数据分片与喷泉码数据分片方式实现一种近场通信系统。测试结果表明,该系统有效提高数据传输速率,实现近场通信在图片等多媒体数据传输方面的应用。

Due to the low cost and fast recognition speed of the QR code,it has been widely used in near field communication.However,when the data content of a single QR code is too large,ordinary mobile devices cannot recognize it,which limits its application in large data transmission.The current solution is mainly to analyze large data QR codes through image recognition block,or cut the original data to generate multiple QR codes,and use continuous playback of the QR code sequence to form a dynamic QR code to expand the amount of transmitted data,but Due to the complexity of image recognition algorithms and the influence of dynamic QR code transmission noise,the transmission rate is not ideal.After in-depth research on dynamic QR code generation,a dynamic QR code generation method is optimized,and a near field communication system is realized by combining continuous data segmentation and fountain code data segmentation methods.The test re⁃sults show that the data transmission rate is effectively improved,and the application of near-field communication in the transmission of multimedia data such as pictures is realized.