Security protection system used for industrial network

A security protection, industrial network technology, applied in transmission systems, network interconnection, digital transmission systems, etc., can solve problems such as gateways not supporting industrial communication standards

Inactive Publication Date: 2013-11-20
BEIJING HUAFENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in addition to being used in office systems, when used to isolate control networks, since gateways generally do not support industrial communication standards such as OPC and Modbus, users can only use its TCP / UDP customization function

Method used

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  • Security protection system used for industrial network
  • Security protection system used for industrial network

Examples

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Embodiment 1

[0012] Such as figure 1 As shown, the OPC gatekeeper adopts a "2+1" three-module architecture, with a built-in dual-host system and an isolation unit for establishing a secure channel for exchanging data. The isolation unit establishes a secure channel through bus technology to safely realize fast data exchange. . Such as figure 2 As shown, the OPC gatekeeper is connected with DCS, PLC, SCADA and other systems to collect real-time data, which is packaged into an OPC Server industry standard communication interface after passing through a secure tunnel and verified, and provided to upper application systems, such as real-time database systems, MIS, and MES systems . When the OPC gateway provides real-time data for the upper system, it is generally located between the automation control system and the upper system. Since the OPC gateway uses a built-in secure data transmission tunnel and verification technology, it can realize effective communication between the automation co...

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Abstract

The invention relates to an industrial network security isolation system, namely an SO (Service Object) series OPC (Object Linking and Embedding for Process Control Server) gateway. The gateway is characterized in that an internal security data transmission tunnel and a verification technology are connected with systems such as a DCS (Data Communication System), a PLC (Programmable Logic Controller) and an SCADA (Supervisory Control And Data Acquisition) system for acquiring real-time data, and an OPCServer industrial standard communication interface is formed by packaging by the safety tunnel and after verification, and is supplied for effective security isolation among an upper layer application system, an automatic experiment control system and an upper layer system. Compared with the prior art, the industrial network security isolation system has the advantages of advanced structure, no physical connection and the like.

Description

technical field [0001] The invention relates to a network isolation product in the industrial field, in particular to an SO series OPC protection gateway used in the industrial network. Background technique [0002] With the development of computer and network technology, especially the deep integration of informatization and industrialization, industrial control system products are increasingly using general protocols, general hardware and general software, and are connected to public networks such as MIS networks and the Internet in various ways. , causing threats such as viruses and Trojans to spread to industrial control systems, and the security problems of industrial control systems have become increasingly prominent. The "Stuxnet" virus incident that occurred in 2010 fully reflected the severe situation of information security in industrial control systems. Information security protection of industrial control systems is an urgent topic. We must start from the techni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/24
Inventor 唐涛周文乐
Owner BEIJING HUAFENG TECH
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