Research On Process Design And Performance Of Airport Passenger Classification Security Inspection

In recent years,our country’s economy has developed rapidly,and the civil aviation industry has made great progress.The continuous increase in the number of civil aviation passengers has put tremendous pressure on the security inspection departments of various airports in my country.Since different passengers have different probabilities of carrying prohibited items,putting the same security inspection resources on all passengers will cause a waste of resources and reduce the travel comfortability of passengers.Therefore,according to the different degree of risk of different passengers,it is of great significance to implement different degree of security checks on passengers of different risk levels.First,according to the degree of passenger risk,passengers are divided into low,medium,and high risk levels,and two differentiated security inspection channels are designed,separate and mixed channels for classification security inspection.In the separate channels of classification security inspection,there are three security inspection channels for low,medium,and high risk passengers,each channel is configured with different security inspection procedures according to the passenger risk type.In the mixed channels of classification security inspection,passengers of various risk levels correspond to mixed security inspection channels,and passengers of various risk levels receive different security inspection procedures in the same inspection check channel.Secondly,according to the security inspection process of each risk level in the separate and mixed channels,establish the security level model of the passenger personal and carry-on baggage inspection process of each risk level and the average waiting time model.According to the parallel security inspection rules of the passenger personal and the carry-on baggage,establish the overall security level model of the system.Combine the model of inspection as search plus decision to analyze the law of the accuracy of the screener’s inspection for X-ray image with the time of inspection.Use the Beta distribution to characterize the decision-making process of the automatic alarm security inspection equipment,and analyze the law of the decision-making accuracy of the equipment with the threshold setting.Finally,according to the security level of the security inspection process of passenger personal and the carry-on baggage of various risk levels,appropriate security inspection equipment is configured for the security inspection channel.The security level of different security inspection separate and the mixed channels is compared,and it is concluded that while the true alarm probability is the same,the true clear probability of the mixed channel is higher.Analyze the law of the accuracy change with screener’s inspection time for X-ray image,the best time for t screener’s inspection for X-ray image is 10 seconds.Combine with ROC curve application rules,the decision accuracy of automatic alarm security inspection equipment is analyzed with the change of threshold settings,and the equipment thresholds at the best balance point between the true alarm probability and the true clear probability of the passenger personal security inspection system of low,medium and high risk levels are obtained,it is 0.05,0.05,0.34.