Research On Radio Security Risk Assessment Of Major Sports Events

With the rapid development of sports in China,more and more large-scale sports events such as the Olympic Games,the Asian Games,the National Games and the Universiade are being undertaken and held.Along with radio technology plays an important role in major sporting events,radio security has become an indispensable and important link in various large-scale sports events.If a radio security accident occurs,it will not only affect the performance of the events and athletes,but also causing chaos on the scene and threating the safety of people's life and property.Therefore,the research on radio security risk assessment of large sports events is of great significance.On the basis of summarizing the status quo of radio security risk assessment of major sports events such as Olympic Games,Asian Games,National Games,and Universiade,this paper first focuses on the lack of standardization of radio security risk assessment in large sports events.On the basis of the requirements of China's "Information Security Risk Assessment",this paper analyzes the radio security risks of large-scale sports events and then identifies and classifies the risk items by their own characteristics.Secondly,the theory of the quantitative analysis in dynamic fault tree is introduced to solve the problem of radio security risk assessment in large-scale sports events.The dynamic fault tree model of large-scale sports event radio security risk assessment is established according to the logical relationship between security risk items.The dynamic fault tree model of large-scale sports event radio security risk is analyzed by using static sub-tree and dynamic sub-tree analysis method.Following on the specific analysis process is given.The probability of occurrence of all failure modes and system failures and the probability importance of each event relative to the top events are obtained by the model.Finally with the design and development of an orignal large-scale sports event radio security risk assessment system,the ananlysis and calcultion of risk can be produced much more convenient.To solve the rating assignment dependent on the experience of evaluators or experts and the lack of objectivity of the problem,this paper introduces the analysis results of dynamic fault tree to the model during the assignment value of assets,threats and vulnerabilities rating by the risk assessment system.