Bottleneck defect detecting method and detecting device

A detection method and detection device technology, applied in the direction of optical testing flaws/defects, etc., can solve the problems of loss of consumers' vital interests, influence on the reputation of manufacturers, injuries to consumers, etc., to improve detection accuracy, fast detection speed, and expand Effect of detection range

Active Publication Date: 2016-01-13
SHANGHAI INSPAK PACKAGING DETECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the inspection of the bottle mouth is very important. If the bottle mouth has defects such as damage, wear, dirt, roundness, etc., it will directly affect the follow-up process. Once an unqualified bottle mouth appears, it will not only affect the reputation of the manufacturer, but also Due to the close contact between the mouth of the bottle and the consumer, the consumer may be injured, resulting in the loss of the vital interests of the consumer

Method used

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  • Bottleneck defect detecting method and detecting device
  • Bottleneck defect detecting method and detecting device
  • Bottleneck defect detecting method and detecting device

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Experimental program
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Effect test

Embodiment 1

[0046] combine figure 2 , the present embodiment describes in detail the detection method of the bottle mouth defect of the present invention, which includes the following steps:

[0047] S11: Positioning the reflection halo formed by the bottle mouth;

[0048] S12: Cutting the positioned reflective halo into several small areas in real time;

[0049] S13: judging whether the white pixel value of each small area is within the preset threshold range of the white pixel value of the small area, if so, judging the small area as a qualified small area, otherwise judging as an unqualified small area;

[0050] S14: Judging whether all the small areas are qualified small areas, if yes, judging as a qualified bottle mouth, otherwise judging as an unqualified bottle mouth.

[0051] The specific operation method is: divide the reflection halo into 255 equal parts, and judge whether the white pixel value of each small area is within the preset threshold range of the white pixel value o...

Embodiment 2

[0058] This embodiment adds the step of light compensation on the basis of Embodiment 1, specifically: after dividing the reflective halo into several small areas, adding all the white pixels of the reflective halo to obtain a sum of white pixels value, and then compare it with the preset minimum value. If it is smaller than the preset minimum value, the reflected light is weak, and the light of the reflected halo is compensated at this time; if it is greater than the preset minimum value, the light reflected Bright and clear, no more compensation.

Embodiment 3

[0060] There is also a problem in practical applications, that is, the reflection halo of some bottle mouths is particularly thick, which causes the white pixel value in the small area to be cut to easily exceed the preset upper limit of the white pixel value in the small area. will be considered as a problematic bottle mouth, in order to solve this problem, the threshold range of white pixel values ​​in small areas needs to be reset. First, calculate the average value of the white pixel values ​​of all small areas, re-determine the threshold range of the white pixel values ​​of the new small area according to this average value, and then judge whether each small area is one by one according to the threshold value range of the white pixel values ​​of the new small area. It is a qualified small area. If the white pixel value of the small area is within the threshold range of the white pixel value of the new small area, it is a qualified small area, otherwise it is an unqualified...

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Abstract

The invention discloses a bottleneck defect detecting method and a detecting device. The bottleneck defect detecting method comprises following steps: a reflective light ring formed by a bottleneck is subjected to accurate positioning; after accurate positioning, real-time cutting of the reflective light ring in to a plurality of small areas is carried out; it is determined that whether the white pixel value of each small area is in a small area white pixel value threshold range, if the white pixel value of a small area is in the small area white pixel value threshold range, the small area is qualified, otherwise, the small area is unqualified; it is determined that whether all the small areas are qualified small areas, if all the small areas are qualified small areas, the bottleneck is qualified, otherwise the bottleneck is unqualified. The detecting device comprises a light emission unit, a camera, and a processing unit; light emitted by the light emission unit irradiates the bottleneck so as to obtain the reflective light ring; the camera is used for capturing the reflective light ring; and the processing unit is used for evaluating the reflective light ring and determining that whether the bottleneck is qualified. The bottleneck defect detecting method and the detecting device are used for processing the reflective light ring of the bottleneck; bottleneck defect detection is realized; detection speed is large; and accuracy is high.

Description

technical field [0001] The invention relates to the technical field of automatic detection, in particular to a detection method and detection device for bottle mouth defects. Background technique [0002] At present, food safety issues are getting more and more attention from the government and the people. In the existing production process of beer, beverages and pharmaceuticals, the filling containers are required to meet the corresponding quality standards, and strict inspections must be carried out in every link of production. Among them, the inspection of the bottle mouth is very important. If the bottle mouth has defects such as damage, wear, dirt, roundness, etc., it will directly affect the follow-up process. Once an unqualified bottle mouth appears, it will not only affect the reputation of the manufacturer, but also Due to the close contact between the bottle mouth and the consumer, the consumer may be injured, resulting in the loss of the vital interests of the co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/88
Inventor 贾军周传敏姚文全张丽娟
Owner SHANGHAI INSPAK PACKAGING DETECTION TECH CO LTD
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