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A test system and method for improving the accuracy of nuclear safety level network test

A technology for testing systems and level networks, which is applied in transmission systems, digital transmission systems, data exchange networks, etc., and can solve problems such as the inability to accurately locate the location of faults

Active Publication Date: 2021-06-29
CHINA TECHENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a test system and method for improving the accuracy of nuclear safety-level network testing, so as to solve the problem that the existing test methods cannot accurately locate the location of the fault

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  • A test system and method for improving the accuracy of nuclear safety level network test
  • A test system and method for improving the accuracy of nuclear safety level network test

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Experimental program
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Embodiment 1

[0052] This embodiment discloses a test system for improving the accuracy of nuclear safety level network testing, such as figure 1 As shown, including: test loop and monitoring loop;

[0053] The test loop includes a first test device, which is used to generate test stimuli, and collect network point data generated by the device under test in response to the above test stimuli; to judge the correctness;

[0054] The monitoring circuit includes a second testing device, which is used to perform synchronous redundancy detection on the test stimulus and network point data in the test circuit, and compare the detection result with the correctness judgment result in the test circuit to obtain a test conclusion.

[0055] Compared with the prior art, the testing system of high nuclear security level network testing accuracy provided by this embodiment, through the establishment of a distributed testing and centralized management testing system, utilizes a special testing device with...

Embodiment 2

[0073] This embodiment discloses a test method that utilizes the test system in embodiment 1 to improve the accuracy of the security level network test, such as figure 2 shown, including the following steps:

[0074] Step S1, connecting the device under test and the first test device to the test circuit; connecting the third-party network tester and the second test device to the monitoring circuit; at the same time, using a physical isolation device to isolate the test circuit from the monitoring circuit;

[0075] Step S2, in the test loop, the first test device generates a test stimulus, and at the same time collects the network point data generated by the device under test in response to the test stimulus; Judging the correctness of the equipment data processing process;

[0076] Step S3. In the monitoring loop, the second test device collects the test stimulus and network point data in the test loop, performs synchronization redundancy detection, and compares the detectio...

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Abstract

The invention relates to a testing system and method for improving the accuracy of nuclear safety-level network testing, belongs to the technical field of safety function testing of instrument and control systems of nuclear power plants, and solves the problem that existing testing methods cannot accurately locate the location of faults. Including the test loop, the first test device generates test incentives, and at the same time collects the network point data generated by the equipment under test in response to the above test incentives; Correctness is judged; monitoring the loop, the second test device performs synchronous redundancy detection on the test stimulus and network point data in the test loop, and compares the detection result with the correctness judgment result in the test loop to obtain a test conclusion. The invention can automatically realize the correctness judgment and realize the precise positioning of the fault location; at the same time, by using the monitoring circuit, the test system has certain self-monitoring and self-diagnosis capabilities, which improves the reliability of the test process.

Description

technical field [0001] The invention relates to the technical field of safety function testing of nuclear power plant instrument control systems, in particular to a testing system and method for improving the accuracy of nuclear safety-level network testing. Background technique [0002] With the continuous advancement of the comprehensive localization of the digital instrument and control system of nuclear power plants and the development of network communication technology, a large amount of inter-station / in-station data is transmitted through the communication network. Usually, apart from part of the digital and analog data collected by the local node being processed through the local host, part of the local data is transmitted to other nodes through the communication network. [0003] If you want to test the correctness of data communication, you can directly extract and compare the input / output physical point signals between each control station, and you can also compar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L1/00
CPCH04L1/004H04L41/0677H04L41/14H04L41/145H04L41/147H04L43/0829H04L43/50
Inventor 吴飞冀建伟黄君龙曹宗生张运涛董玲玲
Owner CHINA TECHENERGY