Network security protection system used in industrial control system and protection method thereof

Abstract

The invention belongs to the field of network security and discloses a network security protection system used in an industrial control system and a protection method thereof. The system comprises anindustrial terminal information acquisition system, a network security protection system connected with the industrial terminal information acquisition system, and an enterprise management system connected to the network security protection system. The industrial terminal information acquisition system includes an information acquisition terminal and an information transmission server. The networksecurity protection system includes a hardware detection module, an invasion sensing module, a vulnerability scanning module, a Trojan detection module, a determination module, a hardware blocking module, a software filtering module, a software blocking module, and an alarm module. The enterprise management system includes a host computer and a storage system. The system and method of the invention prevent the industrial control system from being attacked by the outside world, and effectively improve the safety, reliability and the operating continuity of the industrial control system.

Description

technical field [0001] The invention relates to the technical field of network security, in particular to a network security protection system and a protection method applied in industrial control systems. Background technique [0002] The industrial control system is composed of various automatic control components and process control components for real-time data acquisition and monitoring. Industrial control systems have been widely used in industries, energy, transportation, water conservancy and other fields to control the operation of production equipment. [0003] With the development of computer technology, communication technology and control technology, the traditional control field is undergoing an unprecedented change, and it is beginning to develop in the direction of networking. The structure of the control system has developed from the initial CCS (Computer Centralized Control System), to the second-generation DCS (Distributed Control System), and to the now ...

AI Technical Summary

Problems solved by technology

Due to fewer and relatively simple protective measures, once the firewall between the local area network of the industrial control system and the external network is breached by an attacker, the internal network of the industrial control system can be easily controlled, thus making the production in the industrial control system Information and other data are stolen, or field equipment is maliciously manipulated, which affects normal industrial control

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