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TCAS system S-mode inquiry sequence arranging method

A technology of sequence and mode, which is applied in the field of S-mode query sequence arrangement of air traffic control airborne collision avoidance system TCAS system, can solve problems such as inability to realize effective utilization of query resources, lack of arrangement rules, etc., to prevent waste of query resources and prevent waste , the effect of improving stability

Active Publication Date: 2017-07-21
四川九洲空管科技有限责任公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing TCAS system S-mode inquiry lacks arrangement rules and cannot realize effective utilization of inquiry resources

Method used

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  • TCAS system S-mode inquiry sequence arranging method
  • TCAS system S-mode inquiry sequence arranging method

Examples

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Comparison scheme
Effect test

specific Embodiment 1

[0048] A TCAS system mode S query sequence arrangement method, including:

[0049] First, sort the effective targets according to the received intermittent oscillation response signal strength, and determine the priority to track the detection interrogation sequence, and the intermittent oscillation response signal strength is the first to send the detection interrogation signal;

[0050] Secondly, send a detection interrogation signal to determine the relative altitude and absolute altitude of the aircraft and each effective target in the air, and calculate the potential threat level of each effective target in the air based on the relative altitude and absolute altitude, and send the surveillance interrogation signal first to the threat level Make a monitoring inquiry.

specific Embodiment 2

[0052] On the basis of specific embodiment 1, the absolute altitude is the barometric altitude.

specific Embodiment 3

[0054] On the basis of specific embodiment 2, the specific method steps for detecting and interrogating effective targets are as follows:

[0055] S201. The airborne anti-collision equipment sends a detection interrogation signal from the directional antenna T0 antenna. If a response signal is received, it is judged whether the target is on the ground or in the air. If it is on the ground, ground monitoring is performed, or active detection every N1 detection and interrogation period Ask once; if in the air, go to the next step;

[0056] S202. Determine whether the relative altitude between the target aircraft and the aircraft is greater than the set altitude threshold H1, if yes, perform a detection query according to the set query cycle threshold T1; if not, proceed to the next step;

[0057] S203. Judge whether the target aircraft threat level time TAU is less than or equal to the set threshold time t1, if yes, perform a detection query according to the set query period threshold ...

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Abstract

The invention provides a TCAS system S-mode inquiry sequence arranging method. First, effective targets are sorted according to the strength of received intermittent oscillation response signals, the priority tracking and detection inquiry order is determined, and detection inquiry signals are sent first for the effective targets with higher strength of intermittent oscillation response signals. Then, detection inquiry signals are sent to determine the relative height of a current aircraft relative to each effective target in the air and the absolute height of the aircraft, the potential threat degree of each effective target in the air is calculated according to the relative heights and the absolute height, and monitoring inquiry signals are sent first for monitoring inquiry for the effective targets of higher threat degree. Compared with the prior art, inquiry resources can be fully utilized, S-mode target tracking is more accurate, and the stability of target tracking is improved; and the inquiry number, inquiry direction and inquiry antenna of S mode are reasonably arranged by dynamically referring to the response condition of S mode, waste of inquiry resources is further prevented, and the stability of target tracking is improved.

Description

Technical field [0001] The invention relates to a mode S interrogation sequence arrangement method, in particular to an S mode interrogation sequence arrangement method suitable for an air traffic control airborne collision avoidance system TCAS system. Background technique [0002] The airborne collision avoidance system is the most effective air transportation safety guarantee equipment necessary to prevent dangerous approach of air planes and avoid air-to-air collision accidents. It is based on the principle of secondary radar. It sends out C-mode-only full-call and S-mode roll call inquiries to nearby aircraft equipped with air traffic control transponders, receives and processes C-mode and S-mode response signals, and generates target tracks; The target aircraft conducts threat detection and collision avoidance resolution relative to the movement situation of the carrier aircraft, generates traffic warnings and decisive warnings, and sends RA coordination messages to the tar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G5/04
CPCG08G5/04
Inventor 游华春李涛许杰郑红
Owner 四川九洲空管科技有限责任公司
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