Digital photogrammetry system combined with laser tracking technology, and combined measured target

A technology of digital photogrammetry and measured objects, applied in photogrammetry/video metrology, measuring devices, surveying and navigation, etc., can solve the problems that the reference device cannot accurately reflect the air disturbance, and achieve the effect of improving adverse effects

Active Publication Date: 2013-05-22
API ZC PRECISION INSTUMENT CO LTD
View PDF6 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the influence of air disturbance on the accuracy of photogrammetry will only be considered when the object to be measured (such as large equipment,

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
  • Digital photogrammetry system combined with laser tracking technology, and combined measured target
  • Digital photogrammetry system combined with laser tracking technology, and combined measured target
  • Digital photogrammetry system combined with laser tracking technology, and combined measured target

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The first digital photogrammetry system of the present invention is as figure 1 As shown, it includes: the measured target dot matrix 300, the measured target dot matrix 300 is composed of a plurality of target points respectively marked by the measured target objects 310, and these measured target objects 310 are carried out according to the shape of the measured object Arrangement; digital photogrammetric instrument 100, the quantity of described digital photogrammetric instrument 100 is four, and can simultaneously observe all target points in described measured target lattice 300; Each of the digital photogrammetry instruments 100 is calibrated with a laser tracker 200 whose relative position is calibrated, and the reflector 400 tracked by the laser tracker 200 is fixed in the measured target lattice 300 and is connected to one of the measured target objects 310 A definite relative position is established; the target point marked by the measured target object 310 ha...

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 combined measured target and a digital photogrammetry system which is capable of effectively alleviating an adverse effect on the accuracy of digital photogrammetry due to air disturbance and is combined with a laser tracking technology. The digital photogrammetry system adopts at least one laser tracking instrument which is respectively calibrated with relative positions with various digital photogrammetry instruments; a reflector tracked by the laser tracking instrument is fixed in a measured target dot array and establishes a determined relative position with at least one measured target in the measured target dot array; a target point marked by the measured target with the definite relative position with the reflector is a reference point of the digital photogrammetry of target points in the measured target dot array; and the coordinate values of the target points, which are obtained through the digital photogrammetry system, are all determined through the relative positions of the reference point and the laser tracking instrument. The combined measured target comprises a support body, a measured target and the reflector, wherein the measured target and the reflector are both arranged on the support body; and the determined relative location is established between the measured target and the reflector.

Description

technical field [0001] The invention relates to digital photogrammetry technology, in particular to a digital photogrammetry system combined with laser tracking technology and a composite measured target. Background technique [0002] In recent years, digital photogrammetry technology has been widely used in non-topographic surveying and industrial surveying because of its fast measurement speed. However, in large-scale and long-distance measurement occasions, the adverse effects of air disturbance on the accuracy of photogrammetry have not been well overcome. Specifically, when the measured target dot matrix (that is, composed of a plurality of target points marked by the measured target, and these measured targets are arranged according to the shape of the measured object) is wide and the distance from digital photography When the measuring instrument is far away, the air disturbance in the measuring environment will cause the measured coordinates of each target point in ...

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): G01C11/00
Inventor 卡姆·刘
Owner API ZC PRECISION INSTUMENT CO LTD
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