Filling and rolling pass quick detection method based on image processing

An image processing and detection method technology, applied in image data processing, 2D image generation, image analysis, etc., can solve the problems of large amount of calculation and low efficiency, and achieve the effect of ensuring engineering safety, overcoming post-event control and passive management.

Inactive Publication Date: 2018-03-27
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the rolling monitoring system in application mainly uses the grid method to calculate the number of rolling passes. The key to this method is the selection of the grid size. When the compression area is too large, it will lead to excessive calculation and low efficiency

Method used

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  • Filling and rolling pass quick detection method based on image processing
  • Filling and rolling pass quick detection method based on image processing
  • Filling and rolling pass quick detection method based on image processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In Example 1, the background is white, so gray with transparency is used for filling; in Example 2, the background color is black, so white with transparency is used for filling. When the difference between the background color and the fill color is as large as possible, the distinguishing effect will be better. When a color with a transparency property is overlaid, the color will be mixed to produce a new color, but without a transparency overlay, only the color of the surface layer will be displayed.

[0023] Example 1

[0024] A method for quickly detecting the number of filling and rolling passes based on image processing, comprising the following steps:

[0025] Step 1. According to the monitored position information (the midpoint position of the axis of the roller wheel) obtained during the operation of the rolling machine, calculate the coordinate data at both ends of the axis of the roller wheel, and continuously connect the two ends of the axis of the roller w...

Embodiment 2

[0032] A method for quickly detecting the number of filling and rolling passes based on image processing, comprising the following steps:

[0033] Step 1. Calculate the coordinate data at both ends of the axis of the roller wheel according to the monitored position information during the operation of the rolling machine. According to the time sequence, continuously connect the axis of the roller wheel to construct a quadrilateral. After these quadrilaterals are spliced ​​together, the rolling track is retained. Rolled strips of width information such as figure 1 shown.

[0034]Before drawing the rolling strip diagram, select the background color of the image. In this example, black (0, 0, 0) is used as the background color; when drawing the rolling strip in real time according to the monitoring data, use a color with a transparency attribute Value, that is, add an Alpha (transparency) channel to fill on the basis of the three primary color channels of red, green, and blue. In...

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Abstract

The invention relates to a filling and rolling pass quick detection method based on image processing. The filling and rolling pass quick detection method based on image processing is characterized byrealizing quick detection of rolling pass by means of the image processing mode, specifically including the steps: according to the characteristics of the rolling track in construction, maintaining the real rolling track width information, according to the scaling, drawing strips with transparency and performing overlaying, converting the image into a grey-scale map, and according to the grey value of each pixel point in the grey-scale map, obtaining the rolling pass at the point. The filling and rolling pass quick detection method based on image processing can quickly and accurately obtain the high precision rolling pass map of a rolling construction area, and can visually reflect the real-time quality information during the rolling mechanical construction process so as to enable the superviser side, the employer side and the construction side to know about the real-time quality information timely to master the construction quality in real time and guarantee engineering safety. Besides, the filling and rolling pass quick detection method based on image processing can realize process control and fact basis supply, and can overcome post-action control and passive management of a traditional quality supervising mode.

Description

technical field [0001] The invention belongs to the technical field of process control and management of rolling construction quality of earth-rock filling engineering, and in particular relates to a rapid detection method for the number of times of filling and rolling based on image processing. Background technique [0002] In the rolling construction of the filling, it is the key to ensure the quality of the filling construction to effectively control the quality of the rolling process. Real-time, continuous, high-precision automatic monitoring of rolling machinery during construction can be realized by using modern advanced GNSS, measuring robots and other positioning technologies, and the three-dimensional coordinate data during the construction operation of rolling machinery can be obtained. Through these data, important rolling construction can be realized. Calculation of parameters (number of rolling passes, driving speed, thickness of paving layer and flatness) to ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T11/20G06T11/40
CPCG06T7/0004G06T11/206G06T11/40G06T2207/10024G06T2207/30132
Inventor 黄声享张文
Owner WUHAN UNIV
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