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Gate opening measuring method based on digital image processing

A gate opening and digital image technology, applied in the engineering field, can solve the problems of high cost, difficult installation and maintenance, etc., and achieve the effect of less original parts, strong real-time performance, and simple realization

Active Publication Date: 2013-07-03
武汉联宇技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are disadvantages such as high cost and difficult installation and maintenance

Method used

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  • Gate opening measuring method based on digital image processing
  • Gate opening measuring method based on digital image processing

Examples

Experimental program
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Embodiment Construction

[0021] figure 1 It is a program flowchart of an embodiment of the present invention, including the following steps:

[0022] Step 1) as in figure 2 As shown, the opening scale 2 is set within 2 meters around the mechanical linkage of the gate, and the two are kept parallel. The camera 1 is installed in front of the opening scale 2 to obtain the vertical angle between the indicator rod 3 and the opening scale 2. In the original image, the position direction of the opening scale in the original image is plus or minus 6 degrees in the vertical direction.

[0023] Step 2) Perform denoising processing on the original image: perform color enhancement processing and Gaussian smoothing processing in sequence, and then obtain the positions of the indicator rod and the opening scale in the image by using the contour detection method.

[0024] In this embodiment, the opening scale has a white background and red scales, and the actual height of each scale is 1 cm.

[0025] The color e...

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Abstract

The invention provides a gatage measuring method based on digital image processing. The method comprises the following steps of: simulating the gatage data acquisition principle of working personnel; acquiring real-time color image data of an indication rod and a gatage staff gauge by using a camera; partitioning a staff gauge position which corresponds to the indication rod by adopting a modern intelligent digital image processing technology; and calculating a practical gatage value. Due to the adoption of the method, gatage data information can be acquired accurately without asking personnel to arrive at a field, and the problem of acquisition of gatage data in certain severe environments is solved. In the method, a small quantity of elements are used, the cost is low, and all acquisition and calculation are realized by using software. The method has the advantages of stability, reliability, high instantaneity, easiness for implementing, and the like.

Description

technical field [0001] The invention relates to the field of engineering technology, in particular to a method for measuring the opening of a gate. Background technique [0002] The traditional method of measuring the opening of the gate is to use the staff to go to the scene to visually measure, which is faced with the situation of difficult measurement and low accuracy. The modern method of measuring gate opening data, in addition to retaining the traditional method, also adopts gate opening meter, gate opening sensor and other methods. There are disadvantages such as high cost and difficult installation and maintenance. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a gate opening measurement method based on digital image processing, which can accurately collect the gate opening data without personnel coming to the site. [0004] The technical scheme that the present invention adopts for solving the above-m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/02
Inventor 桂子荣
Owner 武汉联宇技术股份有限公司
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