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Three-dimensional measuring sensor based on line structured light

一种三维测量、线结构光的技术，应用在三维测量领域，能够解决测量精度低、三维测量传感器不能满足测量应用等问题

Inactive Publication Date: 2016-10-12
WUHAN WUDA ZOYON SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a three-dimensional measurement sensor based on line structured light to overcome the defects that the existing three-dimensional measurement sensor cannot meet the measurement application in a high dynamic environment and has low measurement accuracy

Method used

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  • Three-dimensional measuring sensor based on line structured light
  • Three-dimensional measuring sensor based on line structured light
  • Three-dimensional measuring sensor based on line structured light

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Embodiment Construction

[0032] Such as figure 1 As shown, the three-dimensional measurement sensor based on line structured light is composed of two parts: the sensor head and the controller. The sensor head realizes the measurement, and the controller realizes the measurement control and data processing and transmission. The sensor head is responsible for collecting cross-sectional data and its own attitude information, and matching them. The controller integrates and controls each sensor head, including controlling the power supply of each sensor head, triggering sensor head acquisition, controlling the exposure time of the sensor head, and checking the sensor head. Sensor head data, matching and splicing each sensor head data, and using the built-in algorithm to process the sensor head data. In the process of road disease detection and tunnel measurement and detection, due to the large width of the measured object (perpendicular to the driving direction), a single sensor head cannot cover at the s...

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Abstract

The invention relates to a three-dimensional measuring sensor based on line structured light, comprising sensing heads and a controller. The sensing heads are used for collecting section data and self attitude information, and matching the section data with the self attitude information; each sensing head comprises a three-dimensional camera, an attitude sensor, a laser and a control sub-board, wherein the three-dimensional camera is installed at a certain angle relative to the laser, and obtains the elevation and grey information on an object surface corresponding to laser according to a triangulation principle; the attitude sensor, the three-dimensional camera, and the laser are installed on a same rigid surface, and the attitude sensor reflects three-dimensional camera and laser measurement attitudes in real time. The controller is used for measuring and controlling the sensing heads, performing data processing transmission and supporting external control. The three-dimensional measuring sensor realizes synchronous measurement on a measured object with the same attitude and at same time, and supports high speed and high precision measurement under high dynamic environment, the measurement precision reaching a micron grade, and the frequency being higher than 10 KHz.

Description

technical field [0001] The invention relates to the technical field of three-dimensional measurement, in particular to a three-dimensional measurement sensor based on line structured light. Background technique [0002] How to obtain spatial three-dimensional information quickly, accurately and effectively is a frontier topic of in-depth research by scholars at home and abroad. With the deepening of information technology research and the emergence of concepts such as smart city and virtual reality, especially in today's information age based on computer technology, people's demand for spatial three-dimensional information is more urgent. With the development of sensor, electronics, optics, computer and other technologies, photogrammetry and remote sensing technology, which is based on computer vision theory to obtain three-dimensional information on the surface of objects, has become the mainstream. Part of the geometric information will be lost, so understanding the 3D ob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/245
CPCG01B11/245G01B11/25G01S17/89G06T7/00G06T7/521G06T7/50G06T7/73
Inventor 李清泉张德津曹民王新林林红
Owner WUHAN WUDA ZOYON SCI & TECH
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