CN110186418A - A kind of measurement method, system, equipment and the readable storage medium storing program for executing of cross-section of cable product - Google Patents
A kind of measurement method, system, equipment and the readable storage medium storing program for executing of cross-section of cable product Download PDFInfo
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- CN110186418A CN110186418A CN201910532351.XA CN201910532351A CN110186418A CN 110186418 A CN110186418 A CN 110186418A CN 201910532351 A CN201910532351 A CN 201910532351A CN 110186418 A CN110186418 A CN 110186418A
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- image
- section
- cable
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- sectional area
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/28—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring areas
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10024—Color image
Abstract
This application discloses a kind of measurement methods of cross-section of cable product, comprising: while obtaining first image in isospace inner cable section and the second image of canonical reference part；Image conversion coefficient is determined using second image；After carrying out rgb color segmentation to the first image, the sectional area of the cross-section of cable described in the first image is calculated；According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.The present invention is directly calculated by the image of acquisition without being sampled to cable and can determine cross-section of cable product, eliminate measurement error present in classical way in national standard, and operating process is simple, and detection efficiency is much higher than the prior art.Correspondingly, disclosed herein as well is measuring system, equipment and the readable storage medium storing program for executing of a kind of cross-section of cable product.
Description
Technical field
The present invention relates to electrical equipment detection field, in particular to a kind of measurement method, the system, equipment of cross-section of cable product
And readable storage medium storing program for executing.
Background technique
In power industry, the sampling observation work to cable is an important link essential to cable quality control,
Checking on for work of sampling observation directly determines the safe handling of this cable.The diameter of the metallic conductor of cable phenomenon Shi Youfa not up to standard
It is raw, the safe and stable operation of electric system is seriously affected, therefore the measurement of cross-section of cable product also becomes an important index.
In national standard GB/T3048.2 " wire and cable electrical performance test method " in part 2, to metal material resistivity
It is related to the calculating to conductor volume resistivity in test, needs to measure the sectional area and density of conductor.The national standard pair
There are certain measurement errors for the method that sectional area measurement uses.
The 11st part in national standard GB/T2951.3 " wire insulation and sheath material GENERAL EXPERIMENTATION ", in thickness and outside
In shape dimensional measurement, need to measure sample in cross section product, since cable is that multiply monofilament twists together, according to monofilament
Sectional area calculate cable conductor sectional area, equally exist certain error.
In above-mentioned measurement method, either using measurement diameter calculation method or drainage, operating process is extremely complex, but
There is a certain error for calculated result.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that current those skilled in the art need to solve
Problem.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of measurement method of cross-section of cable product, system, equipment and readable
Storage medium, fast to accurately measure cross-section of cable product.Its concrete scheme is as follows:
A kind of measurement method of cross-section of cable product, comprising:
First image in isospace inner cable section and the second image of canonical reference part are obtained simultaneously；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the section of the cross-section of cable described in the first image is calculated
Product；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
Preferably, the process that image conversion coefficient is determined using second image, is specifically included:
Using the picture size and actual size of canonical reference part described in second image, image conversion system is determined
Number.
Preferably, the second image of the first image that is described while obtaining isospace inner cable section and canonical reference part
Process specifically includes:
Simultaneously obtain the first image of the cross-section of cable and with the conplane canonical reference part of the cross-section of cable second
Image.
Preferably, after the progress rgb color segmentation to the first image, cable described in the first image is calculated
The process of the sectional area in section, specifically includes:
After carrying out rgb color segmentation to the first image, the calculating sectional area of copper core in the first image is calculated；
Correspondingly, it is described according to the sectional area and described image conversion coefficient, obtain the mistake of actual cross-section of cable product
Journey specifically includes:
According to the calculating sectional area and described image conversion coefficient, the actual cross-sectional area of the copper core is obtained.
Correspondingly, the invention also discloses a kind of measuring systems of cross-section of cable product, comprising:
Image module, for obtaining first image in isospace inner cable section and the second figure of canonical reference part simultaneously
Picture；
Coefficient module, for determining image conversion coefficient using second image；
Computing module calculates electricity described in the first image after carrying out rgb color segmentation to the first image
The sectional area in cable section；
Conversion module, for obtaining actual cross-section of cable product according to the sectional area and described image conversion coefficient.
Correspondingly, the invention also discloses a kind of measuring devices of cross-section of cable product, comprising:
Canonical reference part；
Image collecting device；
Memory, for storing computer program；
Processor performs the steps of when for executing the computer program
Pass through the first image and canonical reference part that described image acquisition device obtains isospace inner cable section simultaneously
Second image；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the section of the cross-section of cable described in the first image is calculated
Product；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
Preferably, the measuring device further includes fixed device, is cut for fixing the canonical reference part and the cable
The corresponding cable main body in face.
Preferably, the fixed device is specifically used for the fixed canonical reference part and the corresponding cable of the cross-section of cable
Main body, so that the cross-section of cable and the canonical reference part are generally aligned in the same plane.
Correspondingly, being stored with computer journey on the readable storage medium storing program for executing the invention discloses a kind of readable storage medium storing program for executing
Sequence, the computer program perform the steps of when being executed by processor
First image in isospace inner cable section and the second image of canonical reference part are obtained simultaneously；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the section of the cross-section of cable described in the first image is calculated
Product；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
The invention discloses a kind of measurement methods of cross-section of cable product, comprising: while obtaining isospace inner cable section
Second image of the first image and canonical reference part；Image conversion coefficient is determined using second image；To first figure
After carrying out rgb color segmentation, the sectional area of the cross-section of cable described in the first image is calculated；According to the sectional area and institute
Image conversion coefficient is stated, actual cross-section of cable product is obtained.The present invention is straight by the image of acquisition without being sampled to cable
Connecing calculating can determine cross-section of cable product, eliminate measurement error present in classical way in national standard, and operating process is simple, inspection
It surveys efficiency and is much higher than the prior art.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of step flow chart of the measurement method of cross-section of cable product in the embodiment of the present invention；
Fig. 2 is a kind of structure distribution figure of the measuring system of cross-section of cable product in the embodiment of the present invention；
Fig. 3 is a kind of structure distribution figure of the measuring device of cross-section of cable product in the embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The prior art is calculated for sectional area, either non-using measurement diameter calculation method or drainage, operating process
It is often complicated, but there is a certain error for calculated result.The present invention is direct by the image of acquisition without being sampled to cable
Calculating can determine cross-section of cable product, eliminate measurement error present in classical way in national standard, and operating process is simple, detection
Efficiency is much higher than the prior art.
It is shown in Figure 1 the embodiment of the invention discloses a kind of measurement method of cross-section of cable product, comprising:
S1: while obtaining first image in isospace inner cable section and the second image of canonical reference part；
Further, for ease of calculation, usually simultaneously obtain the cross-section of cable the first image and with the cross-section of cable
Second image of conplane canonical reference part.
S2: image conversion coefficient is determined using second image；
Further, generally in step s 2, using the picture size of canonical reference part described in second image with
Actual size determines image conversion coefficient.
It is understood that the actual size of canonical reference part is known parameters, it is not required to go actual measurement again, standard of comparison
The picture size and actual size of reference member, it can obtain image conversion coefficient.
Specifically, in the present embodiment picture size acquisition, can according on its image related like vegetarian refreshments number obtain,
It can also be calculated according to the position coordinates of key points multiple in correspondence image.
It is understood that the first image and the second image are actually the cross-section of cable and canonical reference part in the present embodiment
In the same space, the image that synchronization obtains, in practical operation, by the corresponding cable main body of the cross-section of cable and canonical reference
Part is placed in the spatial image that the same space directly acquires the space, and the part of the determining cross-section of cable is in the spatial image
First image, canonical reference part part be the second image, the picture size of the cross-section of cable and practical ruler in the first image at this time
Have between very little the first proportionality coefficient, the picture size of the second image Plays reference member and the second proportionality coefficient of actual size
There is determining mathematical relationship, it, can be according to the sky of the cross-section of cable and canonical reference part when step S2 obtains the second proportionality coefficient
Between relative position obtain the first proportionality coefficient, recycle the picture size and the first proportionality coefficient of the cross-section of cable in the first image,
It can be obtained by the cross-section of cable product finally required in the actual size namely the present embodiment of the cross-section of cable, this calculating process
Actually it is implied by the three-dimensional modeling in three-dimensional space inner cable section Yu canonical reference part, it is desirable that three-dimensional space and two-dimensional space
Association calculate.
Specifically, the general face cross-section of cable is acquired when acquiring the spatial image, at the same make canonical reference part with
The cross-section of cable is in same plane, and image conversion coefficient namely the second proportionality coefficient are identical as the first proportionality coefficient at this time, calculates
It is more easy, it is to be understood that be in the position of conplane canonical reference part with the cross-section of cable, can be canonical reference
The a line of part or an index plane or other positions, in a word the cross-section of cable, canonical reference part, obtain spatial image image adopt
Relative position between collection probe three can obtain the first determining proportionality coefficient by the above, so as to according to
The picture size of first image determines the actual size of the cross-section of cable.
S3: after carrying out rgb color segmentation to the first image, cutting for the cross-section of cable described in the first image is calculated
Area；
Further, step S3 is specifically included: after carrying out rgb color segmentation to the first image, calculating described first
The calculating sectional area of copper core in image；
It is understood that the cross-section of cable to be asked in the present embodiment is often referred to the sectional area of copper core, and relative to cable
The physical structure of other insulating layers, shielded layer in structure, copper core have apparent metallochrome, therefore are applicable in rgb color segmentation, energy
Enough highlight the cross-section of cable to be asked in the first image, convenient for calculating the quick calculating of sectional area.
S4: according to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
Correspondingly, step S4 is specifically included: according to the calculating sectional area and described image conversion coefficient, obtaining the copper
The actual cross-sectional area of core.
It is understood that obtaining the image conversion system between the sectional area of calculating and material object and image in the present embodiment
Number, so as to determine actual cross-section of cable product, that is to say, that according to the meter in the first figure phase according to image conversion coefficient
Sectional area and image conversion coefficient are calculated, determines the actual cross-sectional area of copper core.
Specifically, if be acquired in the present embodiment in strict accordance with the face cross-section of cable, at the same make canonical reference part with
The cross-section of cable is in conplane requirement the first image of acquisition and the second image, calculating process and can be further simplified, will
Sectional area is calculated to be multiplied with image conversion coefficient or its square.
If should be noted that image conversion coefficient is the face real area and face image area of canonical reference part
Ratio, then directly the calculating sectional area of the above-mentioned cross-section of cable is multiplied with image conversion coefficient, can be obtained actual cable cut
Area；If image conversion coefficient be canonical reference part on the practical side length of certain a line and the ratio of image side length, need by
Square being multiplied for the calculating sectional area of the cross-section of cable and image conversion coefficient, can just obtain actual cross-section of cable product.
Further, it also can determine whether the product of the cross-section of cable obtained in the present embodiment meets production standard, whether is applicable in
In in a certain specific electric circumstance.
The embodiment of the invention discloses a kind of measurement methods of cross-section of cable product, comprising: while obtaining isospace inner cable
First image in section and the second image of canonical reference part；Image conversion coefficient is determined using second image；To described
After first image carries out rgb color segmentation, the sectional area of the cross-section of cable described in the first image is calculated；According to the section
Long-pending and described image conversion coefficient obtains actual cross-section of cable product.The present embodiment passes through acquisition without being sampled to cable
Image directly calculate can determine the cross-section of cable product, eliminate measurement error present in classical way in national standard, operated
Journey is simple, and detection efficiency is much higher than the prior art.
Correspondingly, the embodiment of the invention also discloses a kind of measuring system of cross-section of cable product, it is shown in Figure 2, comprising:
Image module 11, for obtaining first image in isospace inner cable section and the second figure of canonical reference part simultaneously
Picture；
Coefficient module 12, for determining image conversion coefficient using second image；
Computing module 13 calculates described in the first image after carrying out rgb color segmentation to the first image
The sectional area of the cross-section of cable；
Conversion module 14, for obtaining actual cross-section of cable product according to the sectional area and described image conversion coefficient.
The present embodiment is directly calculated by the image of acquisition without being sampled to cable and can determine cross-section of cable product, row
In addition to measurement error present in classical way in national standard, operating process is simple, and detection efficiency is much higher than the prior art.
Correspondingly, the invention also discloses a kind of measuring device of cross-section of cable product, it is shown in Figure 3, comprising:
Canonical reference part 21；
Image collecting device 22；
Memory 23, for storing computer program；
Processor 24, performs the steps of when for executing the computer program
Obtain first image and canonical reference part in isospace inner cable section simultaneously by described image acquisition device 22
21 the second image；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the section of the cross-section of cable described in the first image is calculated
Product；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
Further, the measuring device further includes fixed device 25, for fixing the canonical reference part 21 and described
The corresponding cable main body 20 of the cross-section of cable.
More specifically, the fixed device 25 is for fixing the canonical reference part 21 electricity corresponding with the cross-section of cable
Cable main body 20, so that the cross-section of cable and the canonical reference part 21 are generally aligned in the same plane.
The present embodiment is directly calculated by the image of acquisition without being sampled to cable and can determine cross-section of cable product, row
In addition to measurement error present in classical way in national standard, operating process is simple, and detection efficiency is much higher than the prior art.
Correspondingly, being stored with meter on the readable storage medium storing program for executing the embodiment of the invention discloses a kind of readable storage medium storing program for executing
Calculation machine program, the computer program perform the steps of when being executed by processor
First image in isospace inner cable section and the second image of canonical reference part are obtained simultaneously；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the section of the cross-section of cable described in the first image is calculated
Product；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
The present embodiment is directly calculated by the image of acquisition without being sampled to cable and can determine cross-section of cable product, row
In addition to measurement error present in classical way in national standard, operating process is simple, and detection efficiency is much higher than the prior art.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
Above to a kind of measurement method, system, equipment and the readable storage medium storing program for executing of cross-section of cable product provided by the present invention
It is described in detail, used herein a specific example illustrates the principle and implementation of the invention, the above reality
The explanation for applying example is merely used to help understand method and its core concept of the invention；Meanwhile for the general technology of this field
Personnel, according to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion this theory
Bright book content should not be construed as limiting the invention.
Claims (9)
1. a kind of measurement method of cross-section of cable product characterized by comprising
First image in isospace inner cable section and the second image of canonical reference part are obtained simultaneously；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the sectional area of the cross-section of cable described in the first image is calculated；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
2. measurement method according to claim 1, which is characterized in that described to determine image conversion system using second image
Several processes, specifically includes:
Using the picture size and actual size of canonical reference part described in second image, image conversion coefficient is determined.
3. measurement method according to claim 2, which is characterized in that described while obtaining isospace inner cable section first
The process of second image of image and canonical reference part, specifically includes:
The first image of the cross-section of cable and the second image with the conplane canonical reference part of the cross-section of cable are obtained simultaneously.
4. measurement method according to any one of the claim 1 to 3, which is characterized in that described to carry out RGB to the first image
After color segmentation, the process of the sectional area of the cross-section of cable described in the first image is calculated, is specifically included:
After carrying out rgb color segmentation to the first image, the calculating sectional area of copper core in the first image is calculated；
Correspondingly, it is described according to the sectional area and described image conversion coefficient, obtain the process of actual cross-section of cable product, tool
Body includes:
According to the calculating sectional area and described image conversion coefficient, the actual cross-sectional area of the copper core is obtained.
5. a kind of measuring system of cross-section of cable product characterized by comprising
Image module, for obtaining first image in isospace inner cable section and the second image of canonical reference part simultaneously；
Coefficient module, for determining image conversion coefficient using second image；
Computing module calculates cable described in the first image and cuts after carrying out rgb color segmentation to the first image
The sectional area in face；
Conversion module, for obtaining actual cross-section of cable product according to the sectional area and described image conversion coefficient.
6. a kind of measuring device of cross-section of cable product characterized by comprising
Canonical reference part；
Image collecting device；
Memory, for storing computer program；
Processor performs the steps of when for executing the computer program
Pass through described image acquisition device simultaneously obtain isospace inner cable section the first image and canonical reference part second
Image；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the sectional area of the cross-section of cable described in the first image is calculated；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
7. measuring device according to claim 6, which is characterized in that further include fixed device, for fixing the standard ginseng
Examine part and the corresponding cable main body of the cross-section of cable.
8. measuring device according to claim 7, which is characterized in that the fixed device is specifically used for the fixed standard ginseng
Part and the corresponding cable main body of the cross-section of cable are examined, so that the cross-section of cable and the canonical reference part are located at same put down
Face.
9. a kind of readable storage medium storing program for executing, which is characterized in that be stored with computer program, the calculating on the readable storage medium storing program for executing
Machine program performs the steps of when being executed by processor
First image in isospace inner cable section and the second image of canonical reference part are obtained simultaneously；
Image conversion coefficient is determined using second image；
After carrying out rgb color segmentation to the first image, the sectional area of the cross-section of cable described in the first image is calculated；
According to the sectional area and described image conversion coefficient, actual cross-section of cable product is obtained.
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| CN111412849A (en) * | 2020-04-15 | 2020-07-14 | 北京卫星环境工程研究所 | Rapid measurement method and measurement system for bending radius of spacecraft cable |
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