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opc server security protection system

A server security and protection system technology, applied in the field of OPC server security protection system, can solve problems such as poor security, and achieve the effect of improving security protection capabilities

Inactive Publication Date: 2017-10-10
NORTHWESTERN POLYTECHNICAL UNIV
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AI Technical Summary

Problems solved by technology

[0007] In order to overcome the deficiencies of poor security of existing servers and industrial control systems, the present invention provides an OPC server security protection system

Method used

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Embodiment Construction

[0040] refer to Figure 1-2 . The basic concepts involved in the present invention are as follows:

[0041] 1. OPC server network communication system structure.

[0042] The OPC server network communication system structure is based on the TCP / IP protocol. It is divided into physical layer, data link layer, network layer, transport layer and application layer from low to high. Each layer defines the corresponding communication protocol. The communication functions of the physical layer and the data link layer are usually realized by the network card; the network layer protocols mainly include IP (Internetwork Protocol, Internet Protocol), ICMP (Internetwork Control Message Protocol, Internet Control Message Protocol); the transport layer protocols mainly include TCP (Transmission Control Protocol, Transmission Control Protocol) and UDP (User Datagram Protocol, User Datagram Protocol); there are many application layer protocols, and commonly used application layer protocols in...

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Abstract

The invention discloses an OPC server safety defending system and aims at solving the technical problem that existing servers and industrial control systems are poor in safety. According to the technical scheme, the system comprises a safety defending system body and an operating system platform, and the safety defending system is composed of a control console and a data package filtration driving module. The operating system platform is composed of a Windows filtration platform and a network card. According to an OPC server network communication system structure, safety rules are set on a network layer, a transmission layer and an application layer of an OPC server, deep safety check and audit are conducted on data packages entering and exiting from the OPC server, vicious access behaviors and data packages are identified, filtered and removed, and the safety defending capability of the OPC server and the industrial control system is improved.

Description

technical field [0001] The invention belongs to the field of network information security, in particular to an OPC server security protection system. Background technique [0002] In the field of industrial control, in order to realize the interoperability and integration between the application software and hardware products of the industrial control system, it is necessary to solve the problems of system integration and data communication at the application level. To this end, an international organization called the OPC Foundation was established internationally to formulate the OPC standard. OPC is the abbreviation of Object Linking and Embedding for Process Control. Now, the OPC Foundation has more than 220 members, including all major automation control systems, instrumentation and process control system companies in the world, so the OPC standard has become a de facto international standard. [0003] The core of the OPC standard is Microsoft's Component Object Model ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
CPCH04L63/0227
Inventor 蔡皖东王康魏鹏程吕品
Owner NORTHWESTERN POLYTECHNICAL UNIV
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