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System and method for safe filtering of industrial control network

An industrial control network and security filtering technology, applied in the transmission system, electrical components, etc., can solve the problems of high cost of use and maintenance, long delay of data exchange, poor scalability and interactivity, etc.

Active Publication Date: 2013-03-20
TSINGHUA UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this method is that there is a large delay in data exchange, which does not meet the real-time requirements of industrial control systems.
But such devices are usually based on hardware switch control, high cost of use and maintenance, poor scalability and interactivity (almost none)

Method used

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  • System and method for safe filtering of industrial control network
  • System and method for safe filtering of industrial control network
  • System and method for safe filtering of industrial control network

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Embodiment Construction

[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0045] The invention provides an industrial control network security filtering system, such as figure 1 As shown in , it is a schematic structural diagram of the system, which includes: sequentially connected module docking stations, protocol processing modules, and user interface subsystems;

[0046] The module docking station is connected to the network interface to realize network communication and perform bottom-level preprocessing of the communication protocol; at the same time, it is connected to the module to realize monitoring and management;

[0047] A universal security module docking station is implemented here to flexibly manage various security modules. In the case of not restarting the system, realize the online loading and unloading and startup and shutdown functions of the security module.

[0048] The protocol proce...

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Abstract

The invention provides a system and a method for safe filtering of an industrial control network. The system comprise a module docking station, a protocol processing module and a user interface subsystem that are sequentially connected, wherein the module docking station is connected with a network interface and used for achieving network communication, module monitoring and management and bottom layer preprocessing of a communication protocol; the protocol processing module is used for deblocking, analyzing, filtering and packaging an industrial control protocol based on a TCP / IP (Transmission Control Protocol / Internet Protocol); and the user interface subsystem is used for achieving module management configuration and status display. With the adoption of the system and the method, safety protection measures capable of being flexibly customized, expanded on line, and managed and maintained in real time can be provided for a user on the premise that the network structure of an industrial enterprise is not changed and the daily production is not affected, and the potential threat can be blocked according to the demand of an enterprise strategy, so that the network safety level of an industrial control system is raised greatly at a lower cost.

Description

technical field [0001] The invention relates to the technical field of industrial control networks, in particular to a method and system for security filtering of industrial control network protocols. Background technique [0002] Under the background of "integration of industrialization and informatization", modern industrial enterprises urgently need to realize the bottom layer of enterprise production process control composed of discrete control system (DCS) and supervisory control system (SCADA), and the upper management information system ( ERP, OA, etc.) are interconnected and interoperable to realize the two-way information flow interaction between the decision-making layer, the operation management and control layer and the operation execution layer, so that the enterprise can maintain timely two-way information feedback to the production site, and eliminate information islands and faults. Further play the integration benefits of information systems. In this context...

Claims

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Application Information

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IPC IPC(8): H04L29/06
Inventor 陈震姜欣曹军威
Owner TSINGHUA UNIV
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