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Network isolation device and method for nuclear power plant

A network isolation, nuclear power plant technology, applied in the direction of data exchange network, electrical components, digital transmission system, etc., can solve the problem of low communication efficiency of TELEPERM, and achieve the effect of avoiding failure

Inactive Publication Date: 2017-07-21
CHINA NUCLEAR CONTROL SYST ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above systems have deficiencies in communication strategy and isolation, such as TELEPERM communication efficiency is low

Method used

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  • Network isolation device and method for nuclear power plant

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Experimental program
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Embodiment

[0034] A network isolation method for a nuclear power plant, comprising:

[0035] The safety-side communication module receives the safety-side device data, analyzes the data according to the safety-side communication protocol, and then sends it to the non-safety-side communication module. After receiving the data, the non-safety-side communication module packs the data and sends it to Non-safe side equipment;

[0036] The non-safety side communication module receives the data of the non-safety side equipment, analyzes the data according to the non-safety side communication protocol and sends it to the safety side communication module, and the safety side communication module receives the data and then sends the data to the Devices on the non-safe side.

[0037] Information exchange is realized between the non-safety side device and the non-safety side communication module through the fiber channel.

[0038] Information exchange is realized between the safety-side device and...

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Abstract

The invention discloses a network isolation device for a nuclear power plant. The device comprises a safety side communication module, a non-safety side communication module, and a master control module, wherein information can be transmitted between the safety side communication module and the non-safety side communication module, and the modules can process signals according to respective communication protocols; and the master control module controls the safety side communication module and the non-safety side communication module, and monitors working statuses of the safety side communication module and the non-safety side communication module. The device has the advantages that safe communication between a safety system and a non-safety system of the nuclear power plant is achieved; and the safety system and the non-safety system can be isolated from each other, so that the phenomenon that a failure of one of the two systems leads to a failure of the other system is avoided.

Description

technical field [0001] The invention relates to the network communication field of nuclear power plants, and more specifically relates to a network isolation device and method for nuclear power plants. Background technique [0002] The gateway device of the nuclear power plant is the channel connecting the safety level system and the non-safety level system of the nuclear power plant. The gateway transmits data in one direction. The gateway plays the role of isolating the data of safety-level system and non-safety-level system. [0003] Before the emergence of safety-level digital distributed control systems, the data exchange between safety-level and non-safety-level systems was realized by isolated contacts. With the increase in the number of monitoring points and control points, it can no longer meet the requirements of nuclear power plant safety-level systems, and Increased the difficulty of cable laying and management. [0004] There are few gateways used in nuclear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06
Inventor 马权罗琦秦官学刘明星吴志强刘艳阳王远兵曾少立王克成赵波任俊如韩文兴
Owner CHINA NUCLEAR CONTROL SYST ENG
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