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High-fault-tolerance sky hook recovery method based on window decision making

A recovery method, a highly fault-tolerant technology, applied in vehicle position/route/altitude control, non-electric variable control, instrumentation, etc., to solve problems such as low accuracy

Active Publication Date: 2020-04-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Purpose of the invention: In order to solve the problems of low accuracy in the prior art, the present invention provides a highly fault-tolerant skyhook recovery method based on window decision-making

Method used

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  • High-fault-tolerance sky hook recovery method based on window decision making
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  • High-fault-tolerance sky hook recovery method based on window decision making

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Embodiment Construction

[0057] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention.

[0058] This embodiment provides a highly fault-tolerant skyhook recovery method based on window decision-making. According to the location of the recovery point and the recovery direction provided by the recovery point, combined with the current position of the drone, the present invention can uniquely determine a recovery route, such as Figure 4 As shown, this embodiment specifically includes as follows:

[0059] Step 1. Divide the entire recovery route into a return flight segment, an energy management segment, and a terminal collision segment;

[0060] Step 2. When the UAV completes the cruise mission or receives the "return" command, the UAV determines t...

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Abstract

The invention discloses a high-fault-tolerance sky hook recovery method based on window decision making. The method specifically comprises the steps that: an unmanned aerial vehicle flies to enter anenergy management section after flying to an end point of a return flight section; an energy management window arranged in an energy management section judges whether the unmanned aerial vehicle can enter a tail end line collision section or not, and if so, the unmanned aerial vehicle enters the tail end line collision section; otherwise, the unmanned aerial vehicle continuously and circularly flies according to the path of the energy management section until passing through the window; after the unmanned aerial vehicle flies to the end point of a lower sliding section in the tail end line collision section, the unmanned aerial vehicle flies into a recovery decision-making window, the recovery decision-making window judges whether the unmanned aerial vehicle can perform line collision or not, and if so, the unmanned aerial vehicle enters a re-flight decision-making window through a level flight section; otherwise, the unmanned aerial vehicle enters the level flight section and enters the energy management section again through the first re-flight section; the re-flight decision-making window judges whether the unmanned aerial vehicle successfully collides with the line or not, andif so, the engine is shut down; and otherwise, the unmanned aerial vehicle enters the energy management section through a second re-flight section. The method has the advantages of high accuracy and the like.

Description

technical field [0001] The invention relates to the technical field of skyhook recovery guidance, in particular to a highly fault-tolerant skyhook recovery method based on window decision-making. Background technique [0002] At present, the commonly used recovery methods include conventional runway recovery, parachute recovery, vertical landing recovery, net impact recovery and skyhook recovery, etc. These methods have problems such as low accuracy, high requirements for drones, and easy damage to drones. Contents of the invention [0003] Purpose of the invention: In order to solve the problems of low accuracy in the prior art, the present invention provides a highly fault-tolerant skyhook recovery method based on window decision-making. [0004] Technical solution: The present invention provides a highly fault-tolerant skyhook recovery method based on window decision-making, which specifically includes the following steps: [0005] Step 1: According to the turning rad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 李春涛习金程李凯
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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