Safe protective gateway and system for modern industrial control system network communication

Abstract

The invention provides a safe protective gateway and system for modern industrial control system network communication, which can guarantee safe communication between users and field devices in a public network. The gateway comprises a communication control unit, a data package analysis unit and a linkage unit. The communication control unit is used for basic communication control and control of communication between the users and the field devices according to a command sent from the linkage unit. The data package analysis unit is used for performing selective encryption and decryption and selective deep analysis on a received communication data package. The linkage unit is used for sending a command whether to refuse subsequent communication requests of the user to the communication control unit according to an analysis result, and determining whether to send the analyzed communication data package to a target field device. The safe protective gateway and system are applicable to the technical field of communication.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a security protection gateway and system for network communication of modern industrial control systems. Background technique [0002] In the past, the industrial production environment was relatively independent, and the industrial control system and communication protocols were independent to a certain extent, and there was no connection with other public networks. misuse, natural disasters, etc. [0003] In recent years, with the progress of society and the development of computer technology, the industrial control system has gradually developed from a closed and isolated system to a more open system with multiple connections to the public network. The modern industrial production system not only has an industrial control system, but also combines a general operating system. In modern industrial production, we often need to remotely monitor the production situation and...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a security protection gateway and system for network communication of modern industrial control systems, so as to solve the problem that existing security protection products in the prior art cannot comprehensively protect It is difficult to meet the security requirements of modern industrial control systems for security protection of modern industrial control systems

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