基于二维码的数据传输系统设计

Design of Data Transmission System Based on 2D Code

基于二维码的数据传输系统面向涉密场景,旨在实现涉密信息系统之间的自动数据传输。文中设计了涉密信息系统之间的数据通信流程,即发送端将传输数据按二维码帧容量切分为多帧,按序合成并显示二维码图像序列,接收端使用摄像头等设备采集二维码图像信息,合成传输数据,并按预定规则对接收情况进行反馈,完成收发两端之间的数据通信。与现有采用人工交互或安全铰链设备的方案相比,基于二维码的数据传输系统解决了自动化程度低、传输效率低、设备昂贵等问题,实现了网络隔离条件下自动高效的数据传输,适用于涉密信息系统中具有较高时效性要求的信息交互。

2D code based data transmission system is designed to implement automatic data transmission between classified information systems.A data communication procedure was proposed in this paper.The transfer data is segmented into multi-frames according to the 2D code data capacity in the sending side.The frames are used to generate a 2D code image sequence which is then sampled by a camera or some other vision sampling devices in the receiving side.The sampled 2D code images are decoded to recover the transfer data and the transferring result is feedback to the sending side.Comparing with the existing solutions such as manually interactive and safe-hinge equipment,the proposed 2D code based data transmission system solves the major drawbacks like low level of automation,low transferring efficiency and highly cost devices.Besides,the system implements an automatic and efficient data transmission in a network isolation environment,so that it can be used in the information interaction with high demand of time efficiency in classified information system.