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Flight track building algorithm based on ARINC424 navigation data

A technology of navigation data and track, applied in the field of track construction algorithm based on ARINC424 navigation data, can solve the problems of unpredictable flight time and divergence of flight track, so as to reduce the burden and improve the level of automation.

Inactive Publication Date: 2018-11-23
XIAN FLIGHT SELF CONTROL INST OF AVIC
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: to provide a track construction algorithm based on ARINC424 navigation data, to solve the problems in the prior art that the flight track diverges and the flight time is difficult to predict

Method used

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  • Flight track building algorithm based on ARINC424 navigation data
  • Flight track building algorithm based on ARINC424 navigation data
  • Flight track building algorithm based on ARINC424 navigation data

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0115] Example 1: Construction of the flight path from Xi'an to Beijing

[0116] Step 1: Flight plan analysis

[0117] The flight plan from Xi'an to Beijing is shown in Table 1:

[0118] Table 1 ZLXYZBAA01 flight plan data content

[0119]

[0120] After querying in the navigation database, each flight procedure can be refined into the following content:

[0121] Table 2 ZLXYZBAA01 flight plan analysis data

[0122]

[0123]

[0124] Unify the data format of these 28 flight segments to form a flight segment link list. The data includes: flight segment number, flight segment type, whether to pass a point, turning direction, altitude limit type, altitude limit value, turning radius, flight segment length, waypoint Logo, waypoint coordinates, reference circle center coordinates, recommended navigation station logo, recommended navigation station coordinates, magnetic heading, vertical angle.

[0125] Step 2: Aircraft state initialization

[0126] The input aircraft in...

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Abstract

The invention relates to a flight track building method, in particular to a flight track building algorithm based on ARINC424 navigation data. The algorithm comprises the following steps of 1, according to a flight plan, extracting relevant data from an airborne navigation database; sorting the extracted relevant data into a leg linked list according to specified flight segment sequences in the flight plan; 2, respectively calculating the leg cutoff point and the transition leg according to airplane initial state data and the leg linked list obtained in the first step. A general solution scheme aiming at 23 kinds of leg engagement is realized; a smooth complete flight track is automatically generated according to the input flight plan; the obtained result is conformed to a flight chart; the flight track can be accurately predicated; the automation level of a flight management system can be improved; the load of pilots is lightened.

Description

technical field [0001] The invention relates to a track construction method, in particular to a track construction algorithm based on ARINC424 navigation data. Background technique [0002] It is one of the important functional requirements of the next-generation flight management system to construct the trajectory according to the flight plan and aircraft performance, and to realize the trajectory-based flight guidance based on this trajectory. ARINC424 navigation data stipulates 23 types of flight segments, and the connection relationship is complex. How to achieve smooth connection between flight segments is a key issue in realizing track construction. [0003] The existing flight management system can display the flight plan to the pilot, allowing the pilot to manually control the operation of the aircraft by referring to the chart, which imposes a large workload on the pilot, and it is difficult to accurately predict the flight trajectory and arrival time of the aircraf...

Claims

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Application Information

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IPC IPC(8): G01C21/20
CPCG01C21/20
Inventor 夏天琪屈重君祖肇梓朱成阵祁鸣东
Owner XIAN FLIGHT SELF CONTROL INST OF AVIC
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