3 results about "Airborne collision avoidance system" patented technology

This invention relates to the fields of unmanned aerial vehicle (UAV) technology and air traffic safety management, and discloses a simplified airborne collision avoidance system. The system includes a processor, a memory, and a communication interface. When the processor executes a computer program, it implements a multi-source perception and fusion unit, a trust assessment unit, a cooperative mode management unit, and a graded avoidance decision-making unit. It achieves compatibility with existing unsigned broadcasts through graded verification, marking targets with different trust levels and adjusting risk assessment weights accordingly. It identifies authorized targets through authorized cooperative modes, dynamically lowering safety distances or alarm thresholds within the authorized range, and distinguishing between non-contact and contact cooperation. It generates cooperative or non-cooperative avoidance commands through multi-level progressive risk assessment. It supports parsing dynamic sweep area description information from rotating obstacle broadcasts and reconstructing time-varying collision envelopes. This invention is flexible in deployment and can be installed on various aircraft and ground obstacles, improving low-altitude airspace collision avoidance safety.

This invention discloses a network-based airborne collision avoidance system testing device, comprising a test system hub, a signal testing unit, a DC power supply assembly, an industrial control computer, a TCAS tester, and an ATC / DME tester. The test system hub is connected to an S-mode transponder, an ACAS main unit, an antenna switching switch, the TCAS tester, the ATC / DME tester, the industrial control computer, the DC power supply assembly, and the signal testing unit. The TCAS tester and the ATC / DME tester are connected to the industrial control computer via a switch. The industrial control computer is connected to the DC power supply assembly, which is also connected to the signal testing unit. This device enables automated testing of multiple devices under test, reducing testing costs and the workload of testing personnel, and improving the accuracy of test results.

The invention discloses an airborne collision avoidance system hybrid monitoring S-mode target trace point fusion method based on multiple data sources, which comprises the following steps that: an airborne collision avoidance system carried by an aircraft acquires DF0 and DF16 messages responded by S-mode responders around the aircraft and an extended intermittent oscillation DF17 message broadcasted by ADS-B OUT equipment, and stores the DF0 and DF16 messages into a trace point linked list; assuming that track information of a tracked target aircraft is stored in a track chain table; traversing the trace points in the trace point chain table, and updating the track corresponding to the target aircraft in the track chain table according to the trace points in the trace point chain table. According to the method, wrong display prompts conveyed to the pilot due to target jump are reduced, and the purpose of reducing the aircraft operation burden of the pilot is achieved.