Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Visual navigation and positioning method for rendezvous and docking based on coded targets

A rendezvous and docking and visual navigation technology, applied in the field of navigation and positioning, can solve the problems of low automatic recognition and achieve the effect of improving accuracy and reliability

Inactive Publication Date: 2014-10-22
BEIJING AEROSPACE CONTROL CENT
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2) The recognition of target lights requires external input data, and the degree of automatic recognition is not high

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Visual navigation and positioning method for rendezvous and docking based on coded targets
  • Visual navigation and positioning method for rendezvous and docking based on coded targets
  • Visual navigation and positioning method for rendezvous and docking based on coded targets

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] The present invention will be further described in detail below with reference to the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the present invention and cannot be understood as limiting the protection scope of the present invention. Those skilled in the art can Some non-essential improvements and adjustments have been made to the present invention based on the above-mentioned content of the invention.

[0031] Such as figure 1 As shown, the coded target-based rendezvous and docking visual navigation positioning method of the present invention includes the following steps:

[0032] Step 1: Design and identification of coding targets

[0033] 1.1. Design of coding target

[0034] Such as figure 2 As shown, the coded target is composed of two circular template points and three circular template points of the same size. The three template points A, B, and C define the coordinate system O-XY of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of navigation and positioning based on image pattern recognition and computer, and discloses a rendezvous and docking visual navigation and positioning method based on coded targets. The present invention obtains the three-dimensional coordinates of the template points and feature points on the coded target under the CCD1 coordinate system through the design and identification of the coded target, and calculates The conversion parameters between the target spacecraft coordinate system and the CCD1 camera coordinate system are obtained, combined with the installation parameters of the CCD1 camera on the tracker, the relative position and attitude of the target relative to the tracker are obtained. Adopting the present invention to carry out navigation and positioning in the rendezvous and docking approach section does not require the radar navigation results of the short-distance guidance section, and the recognition results are not affected by the radar navigation results; the present invention can be used to produce different numbers of coded targets and install them on the space station. The accuracy and reliability of relative positioning between the tracker and the target can be improved.

Description

Technical field [0001] The invention belongs to the technical field of image pattern recognition and computer-based navigation and positioning, and particularly relates to a rendezvous and docking visual navigation and positioning method based on an encoded target. Background technique [0002] At present, when two aircraft are navigating and positioning the approaching segment of rendezvous and docking, a CCD camera system is used to measure the relative position and relative attitude between the tracker and the target. The CCD camera is installed on the tracker, and the target light is installed on the target device as a cooperative target of the CCD camera. The CCD camera system collects the image of the target lamp on the target in real time, and then performs image recognition and measurement to obtain the relative position and posture of the target relative to the tracker. The target light is composed of 6 LEDs, of which 4 LEDs are symmetrically distributed on a circle, an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01C21/24
Inventor 王保丰袁建平陈宏敏童斌罗建军申敬松周立王镓张胜磊卜彦龙
Owner BEIJING AEROSPACE CONTROL CENT
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com