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

Short-term displacement detection method based on GNSS dynamic positioning time series segmentation

A time series and dynamic positioning technology, applied in the field of displacement detection, can solve the problems of inability to detect and extract displacement, and achieve the effect of high precision

Active Publication Date: 2022-04-26
WUHAN UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem that the prior art cannot effectively detect and extract displacement in a short time by providing a short-term displacement detection method based on GNSS dynamic positioning time series segmentation

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
  • Short-term displacement detection method based on GNSS dynamic positioning time series segmentation
  • Short-term displacement detection method based on GNSS dynamic positioning time series segmentation
  • Short-term displacement detection method based on GNSS dynamic positioning time series segmentation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] The present invention aims to explore a short-term displacement detection method based on GNSS dynamic positioning time series segmentation, using the coordinate time series formed by the current epoch coordinates and the previous epoch coordinates obtained by GNSS dynamic positioning as the basic processing unit of segmentation. The segmentation points obtained from the detection window are regarded as potential change points, and a statistical test is performed on the potential change points to determine whether the segmentation point is a change point.

[0047] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0048] This embodiment provides a short-term displacement detection method based on GNSS dynamic positioning time series segmentation, which mainly includes the following steps:

[0049...

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 displacement detection, and discloses a short-term displacement detection method based on GNSS dynamic positioning time series segmentation. First, the original coordinate time series is obtained through GNSS dynamic positioning; and then the detection window is used to perform time series segmentation to obtain a set of possible change points; For each possible change point, obtain the statistical value of the possible change point, and judge whether the possible change point is a change point according to the statistical value and the preset threshold; finally, for each change point, obtain the previous displacement estimation value corresponding to the change point, based on the previous Displacement Estimates Obtain the final displacement estimates. The invention solves the problem that the prior art cannot effectively detect and extract the displacement in a short time, and can effectively detect and extract the displacement in a short time.

Description

technical field [0001] The invention relates to the technical field of displacement detection, in particular to a short-term displacement detection method based on GNSS dynamic positioning time series segmentation. Background technique [0002] Displacement measurement plays a positive role in the fields of geological disasters, mine safety, structural health and safety monitoring, and industrial measurement. Over the past two decades, there has been a surge in research on displacement monitoring using the Global Navigation Satellite System (GNSS). Compared with the traditional displacement monitoring technology, GNSS has the advantages of not being affected by the weather, no need for line-of-sight between monitoring points, high precision, and multiple time scales. In addition, with the continuous development of GNSS technology, the cost of receivers has been continuously reduced, and the positioning accuracy has been continuously improved. GNSS has become one of the mos...

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): G06T7/254G06T7/11G06T5/00G06F17/18G06F17/14
CPCG06T7/11G06T7/254G06F17/148G06F17/18G06T5/70
Inventor 陈亮沈楠陈锐志
Owner WUHAN UNIV
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