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

A Method for Detecting Space Coordinate Information of Moving Objects

A technology of spatial coordinates and detection methods, which is applied in the field of signal detection, can solve problems such as difficulty in balancing the positioning accuracy of stereo vision field of view, camera visual positioning interference, and low sampling frequency of the system, so as to improve accuracy and real-time performance, sampling The effect of fast frequency and avoiding detection error

Inactive Publication Date: 2016-11-23
NANJING UNIV OF SCI & TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the object is moving in three directions in space, it is necessary to detect the three-dimensional coordinate information of the feature points of the measured object in space in real time. If the camera visual positioning is used, at least two cameras are required to form a stereo vision detection system. , but it is difficult to balance the field of view of stereo vision and its target positioning accuracy, and the controller needs to process a large amount of image data, which leads to low sampling frequency of the system, which is not conducive to real-time detection. At the same time, if the surface of the measured object is arc surface, the arc surface will interfere with the visual positioning of the camera, resulting in a large error

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 Method for Detecting Space Coordinate Information of Moving Objects
  • A Method for Detecting Space Coordinate Information of Moving Objects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] combine figure 1 and figure 2 :

[0028] A method for detecting spatial coordinate information of a moving object, comprising the following steps:

[0029] Step 1: The surface of the measured object 1 is a plane or arc surface, the feature point 2 to be detected is located on the surface of the measured object 1, and two raised marks are set on the surface of the measured object 1, one of which is vertical The vertical direction is a vertical raised mark 3, and the other raised mark is in a horizontal direction and is a horizontal raised mark 4. The two raised marks are perpendicular to each other, and the extension line of the vertical raised mark 3 passes through the feature point 2;

[0030] Step 2: Set two 2D laser displacement sensors 5 at the positions corresponding to the two raised marks, and the positions of the two 2D laser displacement sensors 5 are fixed. In the initial state, the laser fans 6 of the two 2D laser displacement sensors 5 are perpendicular t...

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 moving object space coordinate information detection method including the steps of arranging an embossing mark, arranging a 2D laser displacement sensor, positioning the 2D laser displacement sensor, collecting data by the 2D laser displacement sensor, determining the moving displacement and the like: the method can detect three-dimensional space coordinate information of a feature point on a moving plane or cambered-surface object, is high in detection precision, fast in sampling frequency and less in information calculation quantity, especially can avoid detection errors caused by a circular cambered surface during detection of the cambered-surface object, and is conducive to improve the detection accuracy and real-time performance.

Description

technical field [0001] The invention belongs to the technical field of signal detection, in particular to a method for detecting spatial coordinate information of a moving object. Background technique [0002] When the object is moving in three directions in space, it is necessary to detect the three-dimensional coordinate information of the feature points of the measured object in space in real time. If the camera visual positioning is used, at least two cameras are required to form a stereo vision detection system. , but it is difficult to balance the field of view of stereo vision and its target positioning accuracy, and the controller needs to process a large amount of image data, which leads to low sampling frequency of the system, which is not conducive to real-time detection. At the same time, if the surface of the measured object is If the arc surface is used, the arc surface will interfere with the visual positioning of the camera, resulting in a large error. [00...

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): G01C15/00
CPCG01C15/00
Inventor 于存贵玄柳李宗涛黄超李志刚王志翔赵纯陈帅魏浩汪国梁邵培
Owner NANJING 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