Navigation positioning method based on ultra short base line

An ultra-short baseline, navigation and positioning technology, applied in the field of navigation and positioning based on ultra-short baseline, can solve the problems of large impact on the job site environment, cumbersome deployment and recovery process, no underwater acoustic communication function, etc. Delay compensation, simple operation, and the effect of improving navigation and positioning accuracy

Active Publication Date: 2016-06-01
SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The long-baseline matrix can provide high-precision positioning information for underwater robots, but the disadvantage is that the deployment and recovery process is cumbersome, and it is greatly affected by the environment of the job site.
The ultra-short baseline is installed on the mother ship, which can monitor the positi

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
  • Navigation positioning method based on ultra short base line
  • Navigation positioning method based on ultra short base line
  • Navigation positioning method based on ultra short base line

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0035] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0036] The invention consists of an underwater robot, a mother ship, a USBL system, a surface monitoring computer, and an acoustic communication machine. The underwater robot needs to be equipped with a depth gauge, DVL (Doppler Velocity Meter) and an angular velocity gyroscope, such as figure 1 Shown.

[0037] The USBL array communicates with the transponder mounted on the underwater robot, and the USBL-BOX calculates the position of the underwater robot, and then sends the position and mother ship position information to the underwater robot through the acoustic communication machine.

[0038] The identification method of USBL positioning data is as follows figure 2 As shown, the underwater robot receives the information from the mother ship’s acoustic communication machine and calculates the distance between it and the position data at the previous moment (if ...

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 navigation positioning method based on ultra short base line (USBL). According to the navigation positioning method, ultra short base line positioning information of an underwater unmanned untethered underwater robot (underwater robot) is sent to the underwater robot via a sound communication machine so as to realize integrated navigation of the underwater robot. The navigation positioning method comprises two steps: firstly, USBL is adopted for tracking and positioning of the underwater robot, and positioning information is sent to the underwater robot via the sound communication machine; and secondly, the positioning information is received by the underwater robot, and state updating of navigation algorithm is carried out via motion compensation. Operation of the navigation positioning method is simple; and USBL positioning information can be used for realizing underwater robot integrated navigation accurately and effectively, so that underwater navigation positioning accuracy of underwater robots is increased further.

Description

technical field [0001] The invention relates to the technical field of underwater robots, in particular to a method for navigation and positioning based on an ultra-short baseline (USBL). Background technique [0002] When an underwater robot performs long-term operations in complex seabed areas, it is very important to have high navigation and positioning accuracy. The autonomous navigation method requires external navigation information for real-time correction due to time-accumulated errors. The long-baseline array can provide high-precision positioning information for underwater robots, but the disadvantage is that the deployment and recovery process is cumbersome, and it is greatly affected by the environment of the job site. The ultra-short baseline is installed on the mother ship, which can monitor the position of the underwater underwater robot in real time. It does not need to deploy an array, and can track the underwater robot with the mother ship. The disadvantag...

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
IPC IPC(8): G01C21/00G01C21/20G01C25/00
Inventor 王飞徐春晖王轶群刘健许以军
Owner SHENYANG INST OF AUTOMATION - CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap