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Alarming method of integrated traffic collision avoidance system (TCAS) main processor

A main processor, parameter technology, applied in the direction of instrument, aircraft traffic control, traffic control system, etc., to achieve the effect of improving safety and accuracy

Inactive Publication Date: 2011-05-18
XIAN FEISIDA AUTOMATION ENG
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AI Technical Summary

Problems solved by technology

[0008] In order to overcome the problems in the existing TCAS main processor alarm algorithm design, the present invention establishes its mathematical model through the horizontal relationship diagram and the vertical relationship diagram of the encounter of two machines respectively, to reserve time τ and height difference (h PA -h PB ) s as two judging criteria;

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  • Alarming method of integrated traffic collision avoidance system (TCAS) main processor
  • Alarming method of integrated traffic collision avoidance system (TCAS) main processor
  • Alarming method of integrated traffic collision avoidance system (TCAS) main processor

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Embodiment Construction

[0021] In this embodiment, since the information collection part remains unchanged, the model establishment, threshold setting and generation of TA and RA are mainly described.

[0022] 1 Model building

[0023] According to the anti-collision warning rule table formulated by TCAS II 7.0 version (see table), a simple model of an aircraft collision avoidance system is introduced here. Reserved time τ and height difference (h PA -h PB ) s for two criteria.

[0024] First, take the horizontal relationship diagram where two planes meet as an example, such as error! Reference source not found. shown.

[0025] mistake! Reference source not found. Among them, A is the aircraft, B is the intruder, R is the distance vector between the two, and the speed of aircraft A is V A , the speed of aircraft B is V B , assuming that both planes are flying in a straight line. We use τ, R min and the altitude within a critical time to estimate the risk of collision between two aircrafts...

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Abstract

The invention relates to the design of an alarming method of an integrated traffic collision avoidance system (TCAS) main processor, which finishes generating technical assistance (TA) / random access (RA) consultation of an integrated TCAS. Aiming at the risks of incomplete consideration of influence factors, a slow algorithm and the presence of concealment in the conventional alarm algorithm of the TCAS, the invention provides an alarm model based on reservation time tau and height difference (hPA-hPB) s. The alarm model is adopted as a substitution which is accordant with the international standard, can take R2 as the entire parameter when a parameter list is established, and reduces division operation and can reduce memory space during TCAS hardware calculation; particularly, the distance between two machines is considered according to the same coordinate system and R2 is utilized, so that evolution operation and the like are also avoided; and the rapidness and safety of the alarm algorithm are enhanced effectively.

Description

(1) Technical field: [0001] The invention relates to the design of an alarm method for a main processor of a new generation airborne TCAS. (two) background technology: [0002] The anti-collision system on the aircraft, the American aviation system is called the air traffic warning and anti-collision system (hereinafter referred to as TCAS), and the European aviation system is called the airborne collision avoidance system. The meaning and function of the two are the same, and the composition is basically the same. Similar, therefore, the description of the application of the present invention is described with TCAS as the technical background. [0003] After years of development, TCAS system has developed a variety of models, such as: TCAS I, TCAS II, TCAS III, TCAS IV. Among them, TCAS II is currently the most widely used. It can provide aircraft pilots with traffic reminders (TA) that display information such as relative altitude, distance, azimuth, ascending / descending ...

Claims

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Application Information

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IPC IPC(8): G08G5/04
Inventor 史忠科黄溢
Owner XIAN FEISIDA AUTOMATION ENG
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