A large-scale sports event radio system information security risk assessment method

Abstract

The invention discloses a large-scale sports event radio system information security risk assessment method, which comprises the following steps: taking a large-scale sports event radio risk event asa top event to establish a large-scale sports event radio system security risk assessment dynamic fault tree model; The dynamic fault tree model is decomposed into a plurality of static sub-trees anda plurality of dynamic sub-trees by using a depth-first leftmost traversal search method; The dynamic subtree is solved based on the Markov chain quantitative analysis method, and the probability importance degree of the corresponding bottom event relative to the top event is obtained. the static sub-tree is sloved based on the BDD quantitative analysis method to obtain the probability importancedegree of the corresponding bottom event relative to the top event; According to the probability importance degree of the bottom event, the risk event is selected to obtain the corresponding risk prevention measures. The invention introduces the quantitative analysis theory of the dynamic fault tree, can analyze the safety risk of the radio system of the large-scale sports events, and provides a reference for developing the safety risk assessment of the radio system of the large-scale sports events.

Description

technical field [0001] The invention relates to the technical field of radio safety risks, in particular to a method for assessing information safety risks of radio systems for large-scale sports events. Background technique [0002] Large-scale sports events mainly refer to national-level comprehensive sports games (such as the National Games) and intercontinental and global comprehensive sports games (such as the Olympic Games, Asian Games) or single events with greater influence (such as football games). World Cup, European Cup). With the improvement of my country's comprehensive national strength, my country has become the most attractive country for hosting large-scale sports events. According to SPORTCAL's analysis of nearly 700 sports events in the world from 2007 to 2018, it is found that China's right to host events is far greater than that of other countries, and has become the country that hosts the most major sports events in the world. [0003] Most of the com...

AI Technical Summary

Problems solved by technology

Due to the increasingly complex interference situation faced by the radio safety assurance work of large-scale sports events, the uncertainty of risk occurrence is increasing, and the risk tolerance is getting lower and lower. Therefore, only qualitative security risk assessment methods can no longer meet the needs.

In the security guarantee of the radio system of large-scale sports events, if a standardized information system security risk assessment is not carried out, the ability to identify and analyze security risks will be lacking, the impact on threats cannot be accurately calculated, and the assessment of risks is difficult to be accurate. are very close to each other making it difficult to detect significant risks and these lead to a subsequent lack of proper risk management

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