Security Alarm Model Research And System Design For Airport Taxiing Guidance

With the development of new generation digital information technology,the construction of smart airports has attracted extensive attention.Airport scene security risk control is a key step in the development of smart airport,which plays a crucial role in ensuring the safety of scene aircraft and vehicles.Traditional security control at the airport scene mainly relies on visual judgment of security risk by controllers.But with the rapid growth of air traffic,the disadvantages of relying on manual judgment are becoming increasingly obvious.Therefore,taxiing guidance system emerges as the times require.With the help of this system,the driver can view the path to reduce security risk during operation.The system can assist the driver to carry out scene activities safely to a certain extent,but there are still deficiencies in security control and security risk model is not comprehensive enough.In order to ensure the effectiveness of security risk control,it is also very important to design a low delay communication system.Therefore,the security alarm model is studied and the low delay communication system is designed for airport taxiing guidance in this paper,and the alarm platform of taxiing guidance system is designed.The subject comes from Guangxi key R & D project "Development of Intelligent Terminal for Airport Aviation Mobile Communication System and Taxi Guidance Application Demonstration".The main research contents are as follows:(1)There are deficiencies of security control in taxiing guidance system,and the security risk model is not comprehensive enough.From the perspective of security risk alarm,the security alarm model for taxiing guidance is studied in this paper according to the scene operation specification and relevant requirements.In this model,the structure of scene road network is modeled firstly,and the complex scene environment is simplified to point-line structure.Then,the security risk of path risk,runway intrusion and taxiing conflict are judged according to different situations.Finally,this model can give an alarm with the judgment results to improve the safety of scene operation.(2)In view of the low delay requirement of alarm platform in taxiing guidance system,a low delay communication system for taxiing guidance is designed in this paper.Firstly,a system delay model is constructed to analyze theoretically the delay of 4G,5G and Aero MACS,the mainstream communication modes of airport scene.Then,the connection delay of different wireless network is compared and analyzed.Simulation results show that both Aero MACS and 5G can meet the delay requirement between 0.5 and 20 ms.However,Aero MACS is a private network for civil aviation,which has higher security.Therefore,Aero MACS is the best choice when considering the delay and safety comprehensively.(3)Since both scene drivers and tower controllers have requirements for scene security risk control,the alarm platform of taxiing guidance system is designed in this paper,including PAD terminal alarm system for aircraft and vehicles and scene traffic supervision system for tower control.The alarm system located in the PAD terminal can assist the driver to perceive the moving targets around and give an alarm to its own operational risk.The scene traffic supervision system located in the tower monitors the scene moving targets and gives an alarm to the potential security risk,prompting the controllers to control the scene conflict.