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Orbital photography measurement method and device

A photogrammetry and track technology, which is applied to measuring devices, measuring instruments, and optical devices, etc., can solve the problems of large installation workload, low efficiency, and difficult installation, and achieve high precision, high efficiency, and overcome the problems of heavy workload. Effect

Inactive Publication Date: 2018-05-22
ZHEJIANG WEISS WIRELESS NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The present invention provides a method and device for track photogrammetry, which is used to overcome the existing photogrammetry technology, which has a large workload and low efficiency in the layout of optical measurement marks, and it is difficult to arrange on the track and it is difficult to use these in the environment where the track is located for a long time. at least one of the disadvantages

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  • Orbital photography measurement method and device
  • Orbital photography measurement method and device

Examples

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Embodiment 1

[0034] Embodiment 1, an example of an orbital photogrammetry method

[0035] see figure 1 As shown, a kind of track photogrammetry method embodiment provided by the present invention comprises:

[0036] Step S110, using a planar laser beam comprising two or more inline sub-beams parallel to each other to irradiate the running rail;

[0037] Step S120, using the spot image of the in-line sub-beam to determine the relative position between points on the traveling track or the coordinates of the points on the traveling track.

[0038] In this embodiment, the optical measurement marks are used as measurement control points.

[0039] Usually, four or more measurement control points are arranged in a scene covered by an optical imaging picture, typically, four to sixteen measurement control points are arranged, and the measurement error is smaller if there are more measurement control points.

[0040] The optical measurement flag receives the control information through a wired cha...

Embodiment 2

[0136] Embodiment 2, an example of a photogrammetry device

[0137] see figure 2 As shown, an embodiment of a photogrammetry device provided by the present invention includes:

[0138] Irradiation module 210, measurement module 220; Wherein,

[0139] The irradiation module 210 is used to irradiate the driving rail with a planar laser beam containing two or more parallel inline sub-beams, including a laser light source sub-module, a laser beam shaping sub-module, a laser reflection surface sub-module, and an irradiation control module. At least one of the submodule, the irradiation position information acquisition submodule, and the laser reflection surface rotation servo submodule;

[0140] The measurement module 220 is used to determine the relative position between points on the driving rail or the coordinates of points on the driving rail by using the spot image of the inline sub-beam, including at least one of the spot image processing sub-module and the position inform...

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Abstract

The invention discloses an orbital photography measurement method and device. The method comprises the following steps of using a faceted laser beam containing two or more in-line beamlets which are mutually parallel to illuminate a driving rail; and using a spot image of each in-line beamlet to determine a relative position among spots on the driving rail or coordinates of the spots on the driving rail. The orbital photography measurement method and device are high in measurement accuracy and efficiency.

Description

technical field [0001] The invention relates to the field of automatic measurement, in particular to a method and device for orbit photogrammetry. Background technique [0002] There is a wide range of application requirements for displacement detection and deformation detection of buildings or industrial facilities. Among them, displacement or deformation detection of bridges, dams and rails is an important technical means for safe operation and production. [0003] At present, the methods for detecting the displacement and deformation of dams and bridges include line-of-sight detection, GPS (global navigation system) and the combination of these methods and surface displacement sensors; Including the measurement of absolute displacement or deformation based on CPIII (Control Point III), or the relative displacement or deformation measurement based on total station and measuring vehicle, or the measurement based on displacement sensor. [0004] The line-of-sight method is ...

Claims

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Application Information

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IPC IPC(8): G01C15/00G01B11/00
CPCG01B11/00G01C15/00
Inventor 胡淼龙
Owner ZHEJIANG WEISS WIRELESS NETWORK TECH CO LTD
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