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

Positioning method and device based on inertial navigation and satellite navigation

A positioning method and satellite navigation technology, which are applied in the field of positioning methods and devices based on inertial navigation and satellite navigation, can solve the problems of large influence of GNSS signal environment and satellite signals affecting positioning results, etc., so as to improve the frequency of output and suppress direction drift. and error accumulation to ensure the effect of short-term accuracy

Active Publication Date: 2018-11-27
湖南云箭格纳微信息科技有限公司
View PDF12 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The problem to be solved by the present invention is to provide a positioning method and device based on inertial navigation and satellite navigation for the problem that the positioning result is affected when the satellite signal quality is poor and the GNSS signal is greatly affected by the environment.

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
  • Positioning method and device based on inertial navigation and satellite navigation
  • Positioning method and device based on inertial navigation and satellite navigation
  • Positioning method and device based on inertial navigation and satellite navigation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings of the present application. Apparently, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0071] Such as figure 1 — Figure 7 As shown, the present invention provides a positioning method and device based on inertial navigation and satellite navigation.

[0072] The micro inertial navigation / satellite navigation (INS / GNSS) global personnel positioning system provided by the present invention is a precise positioning system that seamlessly connects indoors and outdoors. The realization of the present invention mainly includes:

[0073] (1) MEMS rapid and...

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 provides a positioning method and device based on inertial navigation and satellite navigation. The method includes the steps: (1) calculating a first included angle, horizontal axis translation amount and vertical axis translation amount; (2) constructing a system state matrix by the aid of estimation values of a coordinate and a course angle of a user under a horizontal free azimuth coordinate system, constructing a system parameter matrix by the aid of the step length and the estimation values of the course angle of the user under the horizontal free azimuth coordinate system,constructing a measurement value matrix by the aid of a first coordinate and a first course angle, constructing a state equation and a measurement equation of an extended Kalman filter, and calculating an estimation value of a user coordinate by an extended Kalman filter method. According to the positioning method, the satellite navigation and micro-inertial navigation are combined, high-accuracypositioning under long-time complex scenes is achieved by the aid of the advantages of satellite navigation and inertial navigation, satellite navigation has the advantages that the accuracy is high,and errors are stable and cannot be accumulated along with time, inertial navigation has the advantages of high short-term accuracy, and indoor accurate positioning and outdoor accurate positioning can be seamlessly connected.

Description

technical field [0001] The invention relates to a positioning method and device, in particular to a positioning method and device based on inertial navigation and satellite navigation. Background technique [0002] As the value of urban land increases, the buildings in the city are built higher and higher, and the variety of apartment types makes the internal structure more and more complicated. When a fire or other accident occurs, how to rescue the trapped people at the first time is very important. , which puts forward very high requirements for on-site command and dispatch, and to achieve efficient command, it is necessary to know the current position of each rescued person and rescuer at all times. However, the fire scene is full of smoke and dust, the lighting equipment fails, the visibility is low, and the accuracy of identifying the position by itself is greatly reduced. Therefore, the individual positioning system provides good technical support. With the help of th...

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): G01C21/16G01C21/20G01S19/47
CPCG01C21/165G01C21/20G01S19/47
Inventor 闵涛满小三罗小勇杨丛昊
Owner 湖南云箭格纳微信息科技有限公司
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