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Pit slot three-dimensional index extracting and calculating method based on 3D line laser equipment

A calculation method, line laser technology, applied in the direction of using optical devices, measuring devices, instruments, etc., to achieve high accuracy

Inactive Publication Date: 2015-07-15
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there is still a lack of relevant indoor detection accuracy inspection and calculation methods based on 3D line laser pit groove three-dimensional index detection, especially area and volume detection.

Method used

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  • Pit slot three-dimensional index extracting and calculating method based on 3D line laser equipment
  • Pit slot three-dimensional index extracting and calculating method based on 3D line laser equipment
  • Pit slot three-dimensional index extracting and calculating method based on 3D line laser equipment

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Embodiment Construction

[0044] Embodiments of the present invention are described in further detail below:

[0045] A calculation method for extracting and calculating a three-dimensional index of a pit based on a 3D line laser device, comprising the following steps:

[0046] Step 1: Make 3 regular simulated pits with different depths and different areas. The simulated pits are a regular bowl-shaped pit disposed in the rut plate. The parameters affecting the recognition rate of 3D line laser equipment (setup height and exposure value) to calibrate to get the best combination of parameters;

[0047] Step 1.1: Carry out a single factor test on the parameters affecting the recognition rate of 3D line laser equipment;

[0048] Step 1.2: Analyze the results of the single factor test to obtain the optimal parameter combination.

[0049] Step 2: Identify and calculate pit depth, area and volume indicators under the optimal parameter combination calibrated in step 1; the specific operation steps are:

[0...

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Abstract

The invention discloses a pit slot three-dimensional index extracting and calculating method based on 3D line laser equipment. The pit slot three-dimensional index extracting and calculating method comprises the following steps: firstly, making a plurality of regular simulation pit slots with different depths and different areas, calibrating parameters affecting a recognition rate of the 3D line laser equipment to obtain an optimal parameter combination; secondly, recognizing and calculating depth, area and volume indexes of a pit slot under the optimal parameter combination; finally, performing a reliability test on the reliability of detecting equipment and a detecting method. The pit slot three-dimensional index extracting and calculating method disclosed by the invention basically can meet a requirement of an actual pit slot test under existing equipment, and provides a reliable method for extracting and calculating three-dimensional indexes of the pit slot.

Description

technical field [0001] The invention relates to a method for detecting a three-dimensional index of a pit, in particular to a method for extracting and calculating a three-dimensional index of a pit based on a 3D line laser device. Background technique [0002] With the continuous development of science and technology, the pit detection technology has also developed from the early manual detection technology to the current non-contact pavement detection technology. The traditional pothole inspection is a manual method, which has many problems in safety, speed, accuracy, etc., and the workload of post-processing is usually huge, which is not suitable for the requirements of large-scale road inspection. To address this limitation, various studies for automatic detection and disease analysis have been carried out at this stage. [0003] At present, the automatic detection technology for potholes mainly includes technology based on acceleration sensors and vibration sensors, tw...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/24G01B11/22G01B11/28G01B11/00
Inventor 惠冰周博闻李甜甜郭鑫鑫
Owner CHANGAN UNIV
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