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Online composition based aircraft return route programming method

A return route and aircraft technology, which is applied to navigation through speed/acceleration measurement, combined navigator and other directions, can solve problems such as difficulty in establishing mathematical models and many constraints, and achieve high measurement accuracy, reduced difficulty, and reduced space-time overhead. Effect

Active Publication Date: 2013-11-27
BEIJING AEROSPACE AUTOMATIC CONTROL RES INST +1
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AI Technical Summary

Problems solved by technology

[0010] Due to the many constraints involved in aircraft trajectory planning, there are certain difficulties in establishing mathematical models, and it involves the processing of a large amount of different information. issues to be resolved

Method used

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  • Online composition based aircraft return route programming method
  • Online composition based aircraft return route programming method
  • Online composition based aircraft return route programming method

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with the accompanying drawings. The main work flow of the present invention is as follows: figure 1 As shown, the specific implementation method is:

[0037] (1) Select a series of typical areas on the aircraft's scheduled flight route, and map the geographic information about the entire flight route or just the selected typical area in advance and store it in the onboard computer;

[0038] Before the geographic information is stored on the airborne computer, the geographic data can be pre-processed according to the requirements of the matching algorithm, which mainly includes three processes of data reduction, feature extraction, and data fusion.

[0039] The specific steps of pretreatment are as follows:

[0040] (1.1) Extract geographic targets that can be used for matching and positioning from geographic information data in typical areas;

[0041] Geographic Information System (GIS) often strives to expres...

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Abstract

An online composition based aircraft return route programming method comprises the following steps: 1, plotting the geographic information of a whole flight line or only a selected typical area, and storing the geographic information in an airborne computer; 2, obtaining the inertial navigation information of an aircraft in real time; 3, obtaining a real time graph; 4, determining the current flight position; 5, estimating the inertial navigation error, and utilizing the estimated inertial navigation error to correct the navigation parameter of the aircraft; 6, storing the information-fused aircraft position information obtained in step 5 in the geographic information of the airborne computer according to a preset rule by the airborne computer in the aircraft flight process, and carrying out online composition of the information-fused aircraft position information; and 7, carrying out real-time track programming according to the online composition result and the task characteristic of the aircraft in the aircraft return process to complete flight guiding.

Description

Technical field [0001] The invention belongs to the technical category of autonomous navigation and trajectory planning. Specifically, it adopts the INS / GIS integrated navigation method, and realizes the autonomy of drones, aerial vehicles and other aircraft by using geographic information system (GIS) and online composition technology. Quick planning of navigation and return route. Background technique [0002] (1) Geographic Information System GIS [0003] Geographical information is the characterization and all useful knowledge about the nature, characteristics and movement of geographic entities. Geographical information system is an emerging interdisciplinary of theories and methods of describing, storing, analyzing and outputting spatial information; it is based on geospatial database and supported by computer software and hardware to collect, manage and manipulate spatial related data , Simulation and display, computer technology systems for geographic research and geograp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/16G01C21/24
Inventor 王丽娜罗婷高晓颖
Owner BEIJING AEROSPACE AUTOMATIC CONTROL RES INST
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