CN115639204A - Cable insulation layer body bubble judging system and method - Google Patents
Cable insulation layer body bubble judging system and method Download PDFInfo
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- CN115639204A CN115639204A CN202211224819.7A CN202211224819A CN115639204A CN 115639204 A CN115639204 A CN 115639204A CN 202211224819 A CN202211224819 A CN 202211224819A CN 115639204 A CN115639204 A CN 115639204A
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Abstract
The invention relates to a system for judging bubbles of a cable insulation layer body, which comprises: the layer body stripping device is used for carrying out stripping operation of the insulating layer on the cable which is randomly drawn at present so as to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed; and the bubble judging mechanism is used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulating layer image blocks exist and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals to a set percentage value. The invention also relates to a method for judging the bubbles in the cable insulation layer body, which comprises the operation of the system. By the method and the device, whether the bubbles exist on the cable insulating layer currently inspected can be judged on site according to different imaging characteristics and distribution characteristics of the insulating layer and the bubbles on the basis of introducing hardware for random inspection, so that the influence of poor-quality cable products on the credit of cable manufacturers is avoided.
Description
Technical Field
The invention relates to the field of cable quality detection, in particular to a system and a method for judging bubbles of a cable insulation layer body.
Background
Currently, for cable products, the cable insulation layer is an important barrier for protecting the cable, and if there is a defect in the quality of the cable insulation layer, for example, if there is a bubble on the cable insulation layer, the life and safety of the cable will be greatly affected, however, the current quality inspection scheme for the cable insulation layer is difficult to make and implement due to the large volume of the cable insulation layer and the lack of reliable analysis mechanism for the bubble on the cable insulation layer.
CN114899767A discloses a circular cutting type power cable insulation layer removing device, which comprises a cylinder, a mounting plate, a circular ring, a rotating sleeve and the like; both sides all are connected with the mounting panel around the drum, are connected with the ring between two mounting panel bottoms around, and drum lower part rotary type is connected with and rotates the cover. The staff passes the drum with the cable and rotates the cover, stretches out in the follow ring, then the staff promotes two handles and inwards removes, and the connecting plate inwards rotates thereupon, and then makes arc splint inwards move and press from both sides tight cable, and the cable rotates along with the cutter when avoiding cutting, and the cable presss from both sides tightly the back, and the staff drives and rotates the cover and rotate, and then makes the cutter rotate and cut off the cable insulation layer, rotates the cutting and also can reduce the damage to internal conductor.
CN114864191A discloses a coating process for a cable insulation layer, wherein a coating device adopted in the coating process comprises a bottom plate, two rotating mechanisms are respectively arranged at two ends of the top of the bottom plate, the two rotating mechanisms are respectively used for unreeling a cable and reeling the cable, and a coating box and a water spraying device are arranged between the two rotating mechanisms. The cable winding machine is characterized in that a rotating mechanism is further arranged, a cable is wound on a winding drum of the rotating mechanism, the winding drum is driven to rotate through the rotating mechanism in the cable processing process, two rotating mechanisms are arranged, one rotating mechanism is used for unwinding the cable, the other rotating mechanism is used for winding the cable, the cable continuously rotates in the transverse transmission process, so that the coating material can be uniformly coated on the periphery of the cable, and meanwhile, the coated cable is cooled and shaped by matching with a water spraying device.
CN114843041A discloses a cable insulation layer cladding device, which includes an insulation layer extrusion device and an insulation layer splicing device, the insulation layer splicing device is located upstream of the insulation layer extrusion device, in order to splice a plurality of sectional insulation layers of pipes with better circularity outside the conductor, the splicing mode adopts a cold splicing mode or a hot splicing mode that heats only the splice joint, and the circularity of the pipe inner wall itself cannot be affected by the two splicing modes, and on the premise of ensuring the circularity of the pipe inner wall, the coaxiality can be easily ensured.
At present, no technical scheme for specially researching judgment of air bubbles in a cable insulation layer body is searched in the prior art.
Disclosure of Invention
In order to solve the technical problems of the related art, according to an aspect of the present invention, there is provided a system for determining bubbles in a cable insulation layer body, the system including:
a layer body stripping device for performing an insulating layer stripping operation on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed;
the component pushing device is connected with the layer stripping device and used for pushing the insulating layer obtained by stripping to the position below the data acquisition device every time a stripping completion signal is received, pushing action with a distance equal to a set distance value is completed every time the component pushing device receives the stripping completion signal, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and is used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
and the bubble judging mechanism is connected with the insulation detecting mechanism and is used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulation layer image blocks exist and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value.
According to another aspect of the present invention, there is also provided a method for determining bubbles in a cable insulation layer body, the method including:
using a layer body stripping device for carrying out stripping operation of an insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed;
the device comprises a layer stripping device, a component pushing device and a data acquisition device, wherein the layer stripping device is connected with the layer stripping device and used for pushing an insulating layer obtained by stripping to the lower part of the data acquisition device every time a stripping completion signal is received, the component pushing device completes a pushing action with a distance equal to a set distance value every time the stripping completion signal is received, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
an insulation detection mechanism is used and connected with the picture conversion mechanism, and is used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable, and judging the pixel points forming the gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
and the bubble judging mechanism is connected with the insulation detecting mechanism and used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulation layer image blocks exist and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value.
By the method and the device, whether the bubbles exist on the cable insulating layer currently inspected can be judged on site according to different imaging characteristics and distribution characteristics of the insulating layer and the bubbles on the basis of introducing random inspection hardware, so that reliable judgment information is provided for the quality of the cable insulating layer, and the influence of poor-quality cable products on the credit of cable manufacturers is further avoided.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a block diagram showing the structure of a system for judging whether bubbles exist in a cable insulation layer according to a first embodiment of the present invention.
Fig. 2 is a flowchart showing the steps of a method for determining bubbles in a cable insulation layer according to a second embodiment of the present invention.
Detailed Description
Hereinafter, an embodiment of the method for judging whether or not the air bubbles exist in the cable insulation layer according to the present invention will be described in detail with reference to the drawings.
First embodiment
Fig. 1 is a block diagram showing the configuration of a system for judging bubbles in a cable insulation layer body according to a first embodiment of the present invention, the system comprising:
a layer stripping device for performing a stripping operation of the insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer obtained by stripping, and for sending a stripping completion signal after each stripping operation is completed;
the component pushing device is connected with the layer stripping device and used for pushing the insulating layer obtained by stripping to the position below the data acquisition device every time a stripping completion signal is received, pushing action with a distance equal to a set distance value is completed every time the component pushing device receives the stripping completion signal, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
the bubble judging mechanism is connected with the insulation detecting mechanism and is used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulation layer image blocks exist and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value;
for example, the value of the set percentage value may be between six percent and eight percent, and when six percent is selected as the value of the set percentage value, when a set of pixels forming a gap and having a bundle pile in the insulating layer image blocks and an area percentage of a set occupying the insulating layer image blocks exceeds or is equal to the set percentage value, the sending of the bubble determination instruction includes: and when the collection of the pixel points forming the gaps and piled in the insulating layer image blocks exist and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals six percent, sending a bubble judgment instruction.
Second embodiment
The cable insulation layer body bubble judgment system comprises:
a layer stripping device for performing a stripping operation of the insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer obtained by stripping, and for sending a stripping completion signal after each stripping operation is completed;
the component pushing device is connected with the layer stripping device and used for pushing the insulating layer obtained by stripping to the position below the data acquisition device every time a stripping completion signal is received, pushing action with a distance equal to a set distance value is completed every time the component pushing device receives the stripping completion signal, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and is used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
the bubble judging mechanism is connected with the insulation detecting mechanism and is used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulation layer image blocks exist and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value;
the weight analysis mechanism is arranged right below the data acquisition device, is connected with the data acquisition device, and is used for analyzing whether the insulation layer body obtained by stripping and pushing the part pushing device to the lower part of the data acquisition device exists right below the data acquisition device or not at present;
the weight analysis mechanism is used for judging that an insulating layer body obtained by stripping and pushed to the lower part of the data acquisition device by the component pushing device exists under the data acquisition device at present and enabling the data acquisition device when the measured load weight exceeds a set weight threshold;
and the weight analysis mechanism is also used for judging that the insulation layer body which is pushed to the lower part of the data acquisition device by the component pushing device and is obtained by stripping does not exist under the data acquisition device currently and forbidding the data acquisition device when the measured load weight does not exceed the set weight threshold.
In the cable insulation layer body bubble judging system:
the bubble judging mechanism is further used for sending a bubble non-judgment instruction when the insulating layer image blocks have the assemblies of the bundled pixel points forming the gaps and the area percentage of any assembly occupying the insulating layer image blocks is smaller than the set percentage value, and the bubble judging mechanism is further used for sending the bubble non-judgment instruction when the insulating layer image blocks do not have the assemblies of the bundled pixel points forming the gaps.
In the cable insulation layer body bubble judging system:
when the collection of the bundled pixel points forming the gap exists in the insulating layer image blocks and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals to a set percentage value, sending a bubble judgment instruction comprises the following steps: the collection of the piled pixel points forming the gaps in the insulating layer image blocks is a collection of a plurality of adjacent pixel points forming the gaps, which form an image area in the insulating layer image blocks.
In the cable insulation layer body bubble judging system:
the method for detecting the insulating layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulating layer of the cable and judging the pixel points forming the gaps in the insulating layer image blocks by using the brightness value distribution range of the gaps comprises the following steps: detecting each insulating layer pixel point in the received continuous conversion picture by using the brightness value distribution range of the insulating layer of the cable, and taking an image area surrounded by each insulating layer pixel point in the continuous conversion picture as an insulating layer image block in the continuous conversion picture.
Third embodiment
Fig. 2 is a flowchart showing the steps of a method for determining bubbles in a cable insulation layer according to a third embodiment of the present invention, the method including:
using a layer body stripping device for carrying out stripping operation of an insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed;
the device comprises a layer stripping device, a component pushing device and a data acquisition device, wherein the layer stripping device is connected with the layer stripping device and used for pushing an insulating layer obtained by stripping to the lower part of the data acquisition device every time a stripping completion signal is received, the component pushing device completes a pushing action with a distance equal to a set distance value every time the stripping completion signal is received, and the set distance value is the distance between the layer stripping device and the component pushing device;
the using data acquisition device is connected with the component pushing device and is used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
an insulation detection mechanism is used and connected with the picture conversion mechanism, and is used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable, and judging the pixel points forming the gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
the bubble judging mechanism is connected with the insulation detecting mechanism and used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and the binding pile exist in the insulation layer image blocks and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value;
for example, the value of the set percentage value may be six to eight percent, and when six percent is selected as the value of the set percentage value, when a set of pixels forming a gap and having a bundle pile in the insulating layer image block and an area percentage of a set occupying the insulating layer image block exceeds or is equal to the set percentage value, the sending of the bubble determination instruction includes: and when the collection of the pixels forming the gaps and piled in the insulating layer image blocks exists and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals six percent, sending a bubble judgment instruction.
Fourth embodiment
The method for judging the bubbles of the cable insulation layer body comprises the following steps:
using a layer body stripping device for carrying out stripping operation of an insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed;
the device comprises a layer stripping device, a component pushing device and a data acquisition device, wherein the layer stripping device is connected with the layer stripping device and used for pushing an insulating layer obtained by stripping to the lower part of the data acquisition device every time a stripping completion signal is received, the component pushing device completes a pushing action with a distance equal to a set distance value every time the stripping completion signal is received, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
the bubble judging mechanism is connected with the insulation detecting mechanism and used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and the binding pile exist in the insulation layer image blocks and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value;
the weight analysis mechanism is arranged right below the data acquisition device, is connected with the data acquisition device and is used for analyzing whether the insulation layer body obtained by stripping and pushing the part pushing device to the lower part of the data acquisition device exists right below the data acquisition device or not at present;
the weight analysis mechanism is used for judging that an insulation layer body obtained by stripping and pushed to the lower part of the data acquisition device by the component pushing device exists under the data acquisition device at present and enabling the data acquisition device when the measured load weight exceeds a set weight threshold;
and the weight analysis mechanism is also used for judging that the insulation layer body which is pushed to the lower part of the data acquisition device by the component pushing device and is obtained by stripping does not exist under the data acquisition device at present and forbidding the data acquisition device when the measured load weight does not exceed the set weight threshold.
The method for judging the bubbles in the cable insulation layer comprises the following steps:
the bubble judging mechanism is further used for sending a bubble unretermining instruction when the insulating layer image blocks have the assemblies of the bundled pixel points forming the gaps and the area percentage of any assembly occupying the insulating layer image blocks is smaller than the set percentage value, and the bubble judging mechanism is further used for sending a bubble unretermining instruction when the insulating layer image blocks do not have the assemblies of the bundled pixel points forming the gaps.
The method for judging the bubbles in the cable insulation layer comprises the following steps:
when the collection of the bundled pixel points forming the gap exists in the insulating layer image blocks and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals to a set percentage value, sending a bubble judgment instruction comprises the following steps: the collection of the piled pixel points forming the gaps in the insulating layer image blocks is a collection of a plurality of adjacent pixel points forming the gaps, which form an image area in the insulating layer image blocks.
The method for judging the bubbles of the cable insulation layer comprises the following steps:
the method for detecting the insulating layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulating layer of the cable and judging the pixel points forming the gaps in the insulating layer image blocks by using the brightness value distribution range of the gaps comprises the following steps: detecting each insulating layer pixel point in the received continuous conversion picture by using the brightness value distribution range of the insulating layer of the cable, and taking an image area surrounded by each insulating layer pixel point in the continuous conversion picture as an insulating layer image block in the continuous conversion picture.
In addition, in the system and method for judging bubbles in the cable insulation layer body, detecting insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable, and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps further comprises: the insulation layer of the cable has a brightness value distribution range that is different from the brightness value distribution range of the voids.
Therefore, the invention has at least the following three beneficial technical effects:
(1) Randomly extracting a cable for quality inspection, performing stripping operation of an insulating layer to obtain an insulating layer body obtained by stripping, and performing targeted imaging picture analysis on the insulating layer body obtained by stripping to judge whether bubbles exist in the insulating layer body obtained by stripping, thereby providing valuable analysis data for the quality inspection of the cable;
(2) The introduced bubble judging mechanism is used for sending a bubble judging instruction to judge that bubbles exist in the stripped insulating layer body when a set of piled pixel points forming gaps exists in the insulating layer image blocks and the area percentage of a certain set occupying the insulating layer image blocks exceeds or equals to a set percentage value;
(3) And a synchronous control mechanism based on instructions is adopted to realize dynamic synchronous control of a layer stripping device, a component pushing device, a data acquisition device and the like, so that the automation level of the whole quality inspection system is improved.
By adopting the system and the method for judging the bubbles of the cable insulation layer body, the technical problem that the bubble inspection of a large number of cable insulation layers is difficult in the prior art is solved, whether the bubbles exist on the cable insulation layer which is currently inspected can be judged on site according to different imaging characteristics and distribution characteristics of the insulation layer and the bubbles on the basis of introducing hardware for random inspection, and therefore the credit of cable manufacturers is prevented from being influenced by inferior cable products.
It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be implemented depending on design requirements and other factors insofar as they are within the scope of the appended claims and their equivalents.
Claims (10)
1. A system for determining bubbles in a layer of a cable insulation, the system comprising:
a layer stripping device for performing a stripping operation of the insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer obtained by stripping, and for sending a stripping completion signal after each stripping operation is completed;
the component pushing device is connected with the layer stripping device and used for pushing the insulating layer obtained by stripping to the position below the data acquisition device every time a stripping completion signal is received, pushing action with a distance equal to a set distance value is completed every time the component pushing device receives the stripping completion signal, and the set distance value is the distance between the layer stripping device and the component pushing device;
the data acquisition device is connected with the component pushing device and used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
and the bubble judging mechanism is connected with the insulation detecting mechanism and is used for sending a bubble judging instruction when the collection of the pixel points forming the gaps and piled in the insulation layer image blocks exist and the area percentage of a certain collection occupying the insulation layer image blocks exceeds or equals to a set percentage value.
2. The system for judging whether the air bubbles in the cable insulation layer body according to claim 1, further comprising:
the weight analysis mechanism is arranged right below the data acquisition device, is connected with the data acquisition device and is used for analyzing whether the insulation layer body which is obtained by stripping and pushed to the lower part of the data acquisition device by the component pushing device exists right below the data acquisition device or not at present;
the weight analysis mechanism is used for judging that an insulating layer body obtained by stripping and pushed to the lower part of the data acquisition device by the component pushing device exists under the data acquisition device at present and enabling the data acquisition device when the measured load weight exceeds a set weight threshold;
and the weight analysis mechanism is also used for judging that the insulation layer body which is pushed to the lower part of the data acquisition device by the component pushing device and is obtained by stripping does not exist under the data acquisition device at present and forbidding the data acquisition device when the measured load weight does not exceed the set weight threshold.
3. The system for determining whether the air bubbles in the cable insulation layer according to any one of claims 1 to 2,
the bubble judging mechanism is further used for sending a bubble non-judgment instruction when the insulating layer image blocks have the assemblies of the bundled pixel points forming the gaps and the area percentage of any assembly occupying the insulating layer image blocks is smaller than the set percentage value, and the bubble judging mechanism is further used for sending the bubble non-judgment instruction when the insulating layer image blocks do not have the assemblies of the bundled pixel points forming the gaps.
4. The system for determining whether the air bubbles in the cable insulation layer according to any one of claims 1 to 2,
when a set of piled pixel points forming gaps exists in the insulating layer image blocks and the area percentage of a certain set occupying the insulating layer image blocks exceeds or equals to a set percentage value, sending a bubble judgment instruction comprises the following steps: the collection of the piled pixel points forming the gaps in the insulating layer image blocks is a collection of a plurality of adjacent pixel points forming the gaps, which form an image area in the insulating layer image blocks.
5. The system for determining whether the air bubbles in the cable insulation layer according to any one of claims 1 to 2,
the method for detecting the insulating layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulating layer of the cable and judging the pixel points forming the gaps in the insulating layer image blocks by using the brightness value distribution range of the gaps comprises the following steps: detecting each insulating layer pixel point in the received continuous conversion picture by using the brightness value distribution range of the insulating layer of the cable, and taking an image area surrounded by each insulating layer pixel point in the continuous conversion picture as an insulating layer image block in the continuous conversion picture.
6. A method for judging bubbles in a cable insulation layer body is characterized by comprising the following steps:
using a layer body stripping device for carrying out stripping operation of an insulating layer on the cable which is randomly extracted at present for quality inspection to obtain an insulating layer body obtained by stripping, and sending a stripping completion signal after each stripping operation is completed;
the device comprises a layer stripping device, a component pushing device and a data acquisition device, wherein the layer stripping device is connected with the layer stripping device and used for pushing an insulating layer obtained by stripping to the lower part of the data acquisition device every time a stripping completion signal is received, the component pushing device completes a pushing action with a distance equal to a set distance value every time the stripping completion signal is received, and the set distance value is the distance between the layer stripping device and the component pushing device;
the using data acquisition device is connected with the component pushing device and is used for executing a picture acquisition action on the environment below the data acquisition device after the component pushing device finishes a pushing action every time so as to obtain a corresponding environment acquisition picture;
the image conversion mechanism is connected with the data acquisition device and is used for sequentially executing Gaussian white noise elimination, definition improvement and content enhancement operations on the received environment acquisition images so as to obtain corresponding continuous conversion images;
the insulation detection mechanism is connected with the picture conversion mechanism and used for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging pixel points forming gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps;
and the bubble judgment mechanism is connected with the insulation detection mechanism and used for sending a bubble judgment instruction when the collection of the pixel points forming the gaps and the binding pile exist in the insulation layer image blocks and the area percentage occupied by a certain collection in the insulation layer image blocks exceeds or equals to a set percentage value.
7. The method for determining air bubbles in a cable insulation layer according to claim 6, further comprising:
the weight analysis mechanism is arranged right below the data acquisition device, is connected with the data acquisition device and is used for analyzing whether the insulation layer body obtained by stripping and pushing the part pushing device to the lower part of the data acquisition device exists right below the data acquisition device or not at present;
the weight analysis mechanism is used for judging that an insulating layer body obtained by stripping and pushed to the lower part of the data acquisition device by the component pushing device exists under the data acquisition device at present and enabling the data acquisition device when the measured load weight exceeds a set weight threshold;
and the weight analysis mechanism is also used for judging that the insulation layer body which is pushed to the lower part of the data acquisition device by the component pushing device and is obtained by stripping does not exist under the data acquisition device currently and forbidding the data acquisition device when the measured load weight does not exceed the set weight threshold.
8. The method for evaluating bubbles in a cable insulation layer according to any one of claims 6 to 7,
the bubble judging mechanism is further used for sending a bubble non-judgment instruction when the insulating layer image blocks have the assemblies of the bundled pixel points forming the gaps and the area percentage of any assembly occupying the insulating layer image blocks is smaller than the set percentage value, and the bubble judging mechanism is further used for sending the bubble non-judgment instruction when the insulating layer image blocks do not have the assemblies of the bundled pixel points forming the gaps.
9. The method for evaluating bubbles in a cable insulation layer according to any one of claims 6 to 7,
when the collection of the bundled pixel points forming the gap exists in the insulating layer image blocks and the area percentage of a certain collection occupying the insulating layer image blocks exceeds or equals to a set percentage value, sending a bubble judgment instruction comprises the following steps: the collection of the piled pixel points forming the gaps in the insulating layer image blocks is a collection of a plurality of adjacent pixel points forming the gaps, which form an image area in the insulating layer image blocks.
10. The method for evaluating bubbles in a cable insulation layer according to any one of claims 6 to 7,
the method for detecting the insulation layer image blocks in the received continuous conversion pictures by using the brightness value distribution range of the insulation layer of the cable and judging the pixel points forming the gaps in the insulation layer image blocks by using the brightness value distribution range of the gaps comprises the following steps: detecting each insulating layer pixel point in the received continuous conversion picture by using the brightness value distribution range of the insulating layer of the cable, and taking an image area surrounded by each insulating layer pixel point in the continuous conversion picture as an insulating layer image block in the continuous conversion picture.
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| CN111192261A (en) * | 2020-01-03 | 2020-05-22 | 河海大学 | Method for identifying lens defect types |
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| JP2006090743A (en) * | 2004-09-21 | 2006-04-06 | Kanto Auto Works Ltd | Device and method for inspecting inside of foam body |
| CN106248686A (en) * | 2016-07-01 | 2016-12-21 | 广东技术师范学院 | Glass surface defects based on machine vision detection device and method |
| CN111060521A (en) * | 2019-12-31 | 2020-04-24 | 中国水利水电第十四工程局有限公司 | Method for detecting quantity and area of bubbles on surface of precast concrete T beam |
| CN111192261A (en) * | 2020-01-03 | 2020-05-22 | 河海大学 | Method for identifying lens defect types |
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