A knowledge base test paper composition method for risk assessment of an industrial control system

Abstract

The invention relates to the field of automatic test paper composition algorithms, in particular to a knowledge base test paper composition method for risk assessment of an industrial control system.The method comprises the steps of question bank construction, test paper attribute matrix generation, fitness function construction, genetic operation, test paper generation and the like. According tothe knowledge base test paper composition method, on the basis of meeting test paper structures, test paper total scores and chapter proportions, a test paper composition model with risk grade proportion distribution and test paper distinction degree as target constraints is designed, and complex test paper composition requirements can be well met according to user requirements; A plurality of constraint problems in the test paper composition process are correspondingly analyzed and constructed, so that mathematical description of a single set of test paper structure is established, automatictest paper composition is realized by utilizing an adaptive genetic algorithm, and experiments prove that the test paper composition algorithm is more efficient than other test paper composition algorithms.

Description

technical field [0001] The invention relates to an automatic paper-forming algorithm, in particular to a knowledge base paper-forming method for risk assessment of an industrial control system. Background technique [0002] The industrial control system (ICS) has experienced an important development process in the past ten years. Open communication protocols such as industrial Ethernet and TCP / IP have been introduced. The system platform tends to be open and standardized, and the connection with external networks has become more efficient. Close and frequent, especially the newly proposed concept of Industry 4.0 integrates the ideas of smart factory, smart production, and smart logistics. These make the inherent vulnerabilities and attack surfaces of the ICS system increase day by day, and the security attacks faced by the Internet are introduced into the ICS system. In the context of the era of "integration of industrialization and industrialization", it is an inevitable r...

AI Technical Summary

Problems solved by technology

However, employees of many units and enterprises do not understand these standards, and do not follow them in daily production and work, resulting in the implementation of these standards not achieving the expected results

At present, there is a lack of an examination system for risk assessment of industrial control systems, which can reasonably select assessment content according to user configuration options, automatically generate test papers, and achieve the purpose of popularizing safety standard knowledge for employees and conducting system self-examination

Images