An Airborne Surveillance System Based on Multilink

Abstract

The invention relates to a multi-link based airborne surveillance system. The present invention includes a comprehensive processing unit, a traffic antenna unit, a GNSS antenna, and a satellite antenna unit; the traffic antenna unit is used to receive the L-band radio frequency signal induced by the omnidirectional antenna and send it to the comprehensive processing unit; the comprehensive processing unit monitors and Detect the running status of the airborne monitoring equipment, if the equipment is normal, the airborne monitoring system will remain silent, otherwise it will output monitoring information through satellite links, ADS-B and Beidou short messages; the satellite antenna unit is used for sending and receiving Satellite communication signal; the GNSS antenna receives the navigation and positioning information of the Beidou navigation satellite and its GNSS. The invention realizes the monitoring of the existing airborne monitoring equipment, and realizes the output of the monitoring information of the aircraft through various links when the system is abnormal; the invention only needs to connect the emergency power supply to complete the function of the system, and realizes that it is free from human error Acquisition and transmission of aircraft surveillance information affected by malicious intrusions.

Description

technical field [0001] The invention belongs to aviation airborne technology and relates to an airborne monitoring system based on multi-link. Background technique [0002] At present, my country's air transport industry is developing rapidly, and the number of aircraft is increasing rapidly. However, there are relatively large security risks in the surveillance of aircraft, which cannot support the safe and efficient operation of my country's aviation industry. The loss of contact with Malaysia Airlines MH370 in 2014 once again sounded the alarm for aviation surveillance safety. The hidden dangers are mainly manifested in: [0003] (a) Human factors can easily intrude into the aircraft safety assurance system. In the event of communication interruption, data loss, and monitoring obstacles caused by the pilot's manual operation, there is currently no effective means to ensure continuous monitoring of the aircraft; [0004] (b) The global coverage of the current aircraft sur...

AI Technical Summary

Problems solved by technology

[0003] (a) Human factors can easily intrude into the aircraft safety assurance system. In the event of communication interruption, data loss, and monitoring obstacles caused by the pilot's manual operation, there is currently no effective means to ensure continuous monitoring of the aircraft;

[0004] (b) The global coverage of the current aircraft surveillance system based on ground surveillance methods is insufficient, and aircraft surveillance information under a single system structure is easily blocked by external factors

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