File transmission method, device and system

• Main Authors: SHEN LIANGPING, ZHANG JIANQIANG, PAN XIYAN, ZHOU HAI, XU YONGCHANG, WANG HAO
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2021
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention relates to a file transmission method, device and system. The file transmission method comprises the following steps: converting transmission file content into a file content optical signal; transmitting the file content optical signal according to a file transmission protocol; and receiving the file content optical signal, and analyzing the file content according to the file content optical signal. One-to-one and one-to-many transmission of files can be realized through a visible light communication mode, the transmission mode is simple and easy to maintain, electric signals of the files are converted into optical signals, the optical signals are encrypted and then transmitted, and due to the fact that light is propagated along a straight line, the signals cannot be received in places which cannot be irradiated by the light, and the file transmission security can be improved. 本申请涉及一种文件传输方法、装置及系统，文件传输方法包括将传输文件内容转换为文件内容光信号；将文件内容光信号根据文件传输协议进行传输；接收文件内容光信号，根据文件内容光信号解析出文件内容。本申请可以实现通过可见光通信的方式实现文件的一对一和