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

A visual guidance method for unmanned boat lifting and recovery

A technology for visual guidance and unmanned boats, applied in the field of image processing, can solve the problems of high risk and low efficiency, and achieve the effects of reliable results, increased reliability, and reduced possibility of being hijacked.

Active Publication Date: 2019-09-27
JIANGSU UNIV OF SCI & TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the deployment and recovery of unmanned boats can only be carried out manually under low speed and low sea conditions, which is inefficient and dangerous

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
  • A visual guidance method for unmanned boat lifting and recovery
  • A visual guidance method for unmanned boat lifting and recovery
  • A visual guidance method for unmanned boat lifting and recovery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] In this embodiment, when the unmanned boat is far away from the mother ship, rotate the gimbal on the unmanned boat to scan and collect images of the sea-sky area, use hough to transform the sea-antenna position, and extract the suspected mother ship target location area in the sea-sky junction area; extract the suspected mother ship Target feature parameters. Because the characteristic parameters of the ship change with the change of the waterline, in order to improve the stability of the characteristic parameters, the deck position of the ship is detected (used at the position of the mother ship, the longest straight line above the sea antenna is used as the deck position), and the extracted The horizontal and vertical projection of the building structure above the deck and the complexity of the outer contour are used as characteristic parameters, compared with the characteristic parameters of the mother ship to confirm the identity of the mother ship;

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 discloses a visual guidance method for lifting and recycling of an unmanned surface vehicle. The visual guidance method comprises the following steps of when the unmanned surface vehicleis driven away from a mother ship, rotating a cradle head to scan and collect images in sea and air areas, determining the target position area, extracting target feature parameters, comparing with the feature parameters of the mother ship, and verifying the identity of the mother ship; measuring the distance and azimuth of the mother ship, and guiding the unmanned surface vehicle to one positioning position near the mother ship according to the azimuth of the mother ship; collecting the images of the mother ship, finding a positioning marker on the mother ship, determining the unmanned surface vehicle to bypass the mother ship or approach to or drive away from the mother ship according to the image of the positioning marker, collecting the positions of the unmanned surface vehicle and the mother ship when the image of the positioning marker is matched with the image of the positioning marker collected at the correct lifting position of the unmanned surface vehicle, and waiting for alifting device to lift and recycle the unmanned surface vehicle.

Description

technical field [0001] The invention relates to image processing technology, in particular to a visual guidance method for hoisting and recovering an unmanned boat. Background technique [0002] The use of unmanned boats has the characteristics of flexible maneuverability, good concealment, wide range of activities, and low cost of use. At present, the number of unmanned surface vehicles in service is very small, and they are mainly used to perform military tasks such as maritime surveillance and reconnaissance, anti-mine warfare, and electronic warfare. With the continuous improvement of intelligence, unmanned boats will be widely used in marine engineering and marine military fields in the future. At present, the deployment and recovery of unmanned boats can only be carried out manually under low speed and low sea conditions, which is inefficient and dangerous. A safe, reliable, and fast autonomous deployment and recovery system for unmanned boats is a bottleneck that ur...

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): G01C21/18G01C21/16G01C3/00
Inventor 李忠国许晨唐炜迟睿王佳罗元康马旭
Owner JIANGSU UNIV OF SCI & TECH
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