Two-dimensional bar code duplex communication method

Abstract

The invention discloses a two-dimensional bar code duplex communication method and aims at providing the duplex communication method based on two-dimensional bar codes. According to the duplex communication method, the communication security is high and the data transmission efficiency and reliability are high in a scene with a relatively high confidentiality demand. The method is realized throughutilization of the following technical scheme that a sending end codes to-be-transmitted data into a two-dimensional bar code image sequence and displays the two-dimensional bar code image sequence in sequence through utilization of a miniature liquid crystal display; a receiving end collects the two-dimensional bar code image sequence through utilization of a vision camera or a two-dimensional bar code scanner, carries out repeated frame elimination, image graying, median filtering and binarization preprocessing on collection results and decodes the collection results according to a two-dimensional bar code coding format, thereby acquiring decoding results; the receiving end integrates the decoding results according to frame serial numbers and the frame number, thereby acquiring a sending end source transmission file; and the receiving end carries out real-time feedback or delayed feedback on a receiving result according to system transmission configuration. According to the method,the defect of a data transmission security hinge is solved.

Description

Technical field [0001] The invention relates to a duplex communication method based on a two-dimensional code, which realizes automatic duplex data communication. Background technique [0002] In scenarios with high confidentiality requirements, in order to ensure the communication security of related data, the prior art usually uses fully network-isolated secure hinge devices or manual disks at both ends of the communication to complete the import and export of data. The secure hinge device is an automated data transmission device deployed at both ends of the communication. It usually uses a robotic arm and a CD-ROM drive to record files in a specified directory at the sender at a fixed time, and then automatically transmits it to the receiver for data reading. It costs hundreds of thousands of dollars to deploy a set of safety hinge equipment. The safety hinge equipment is expensive, maintenance cost is high, data transmission is usually in timing mode, and the transmission eff...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of expensive communication equipment and low transmission efficiency in the network isolation scene of the prior art, and provide a two-dimensional code-based dual industrial communication method

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