Data transmission method

Abstract

The invention relates to the field of internet of things, in particular to a data transmission method. The data transmission method comprises: obtaining data information; performing standardization processing on the data information to obtain data information in a set format; encoding the data information in the set format according to a code system, and generating and displaying a picture; shooting the picture; and decoding the shot picture to obtain the data information contained in the picture. The security of data transmission can be improved.

Description

technical field [0001] The invention relates to the field of the Internet of Things, in particular to a data transmission method. Background technique [0002] The widespread application of computer networks has brought an important revolution to today's society. There are abundant knowledge resources available on the Internet. No matter what occupation you are in, you need to obtain a lot of information from the Internet. With the continuous development of computer networks, Its security is facing increasing threats, computer viruses and hackers and other network security risks are becoming more and more serious, not only destroying the local system, but also threatening national security, commercial secrets and personal privacy. Enterprises urgently need to solve the problem of not only being able to use online resources but also ensuring the security of their own data, and not being used by other illegal intruders. [0003] A web crawler is a program or script that autom...

AI Technical Summary

Problems solved by technology

[0005] Generally, from the perspective of security, data from a network with a high security level (hereinafter referred to as an intranet) cannot be freely transmitted to a network with a low security level (hereinafter referred to as an external network), while data from an external network often needs to be transmitted into the internal network. Since sensitive data generally resides in the intranet, the current protection scheme for sensitive data is to physically isolate the network, that is, there is no link between the two networks, and data cannot be exchanged through wired or wireless methods. For external network data that needs to be transmitted into the internal network, the current common practice is to manually import the required data into the internal network using removable storage media such as CDs. From the perspective of cost, this method is not cost-effective, because it involves manual operations. Time-consuming and error-prone

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