CN109580652A - A kind of quality of battery pole piece detection method, electronic equipment and storage medium - Google Patents
A kind of quality of battery pole piece detection method, electronic equipment and storage medium Download PDFInfo
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- CN109580652A CN109580652A CN201811276602.4A CN201811276602A CN109580652A CN 109580652 A CN109580652 A CN 109580652A CN 201811276602 A CN201811276602 A CN 201811276602A CN 109580652 A CN109580652 A CN 109580652A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
- B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
- B07C5/3422—Sorting according to other particular properties according to optical properties, e.g. colour using video scanning devices, e.g. TV-cameras
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/36—Sorting apparatus characterised by the means used for distribution
- B07C5/361—Processing or control devices therefor, e.g. escort memory
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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Abstract
The invention discloses a kind of quality of battery pole piece detection methods, including open defect detecting step, cutting width detection step and marking step.The present invention treats cutting battery pole piece by open defect detecting step and carries out open defect detection, mark signal is issued to the battery pole piece to be cut of appearance existing defects, the width detection to the battery pole piece after cutting is realized by cutting width detection step again, and then it detects and obtains the underproof battery pole piece of cutting width and issue mark signal, marking machine is controlled according to mark signal, mark mark is carried out to corresponding product, distinguish and manage for staff.The present invention is greatly improved the qualification rate and production efficiency of production product.The invention also discloses a kind of electronic equipment and computer readable storage medium.
Description
Technical field
The present invention relates to battery pole piece detection system more particularly to a kind of quality of battery pole piece detection methods, electronic equipment
And storage medium.
Background technique
Currently, the production of battery pole piece generally by conductive material is milled, writing that surpasses all the others, cutting, winding all operate,
And it is applied on corresponding medium.But due to extraneous factors and other internal factors such as equipment, operations in production technology
Battery pole piece after will cause cutting when battery pole piece is unqualified before causing to cut is also unqualified or not can be carried out cutting；Or point
Battery pole piece after cutting is unqualified, and the qualification rate of product is caused to decline, the low problem of production efficiency.
Summary of the invention
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of battery pole piece detection method,
The problem of it is able to solve in the prior art that battery pole piece production efficiency is low, qualification rate is low etc..
The second object of the present invention is to provide a kind of electronic equipment, is able to solve battery pole piece in the prior art and produces
The problem of inefficiency, qualification rate are low etc..
The third object of the present invention is to provide a kind of readable storage medium storing program for executing, is able to solve battery pole piece in the prior art
The problem of production efficiency is low, qualification rate is low etc..
An object of the present invention adopts the following technical scheme that realization:
A kind of quality of battery pole piece detection method, including open defect detecting step, cutting width detection step and mark
Step；Wherein open defect detecting step specifically includes the following steps:
First detecting step: the image of battery pole piece to be cut is obtained, and is obtained according to the image of battery pole piece to be cut
Battery pole piece to be cut whether there is defect, if so, executing judgment step；
First judgment step: the information of defect is determined according to battery pole piece to be cut, and according to the information and system of defect
Preset defective data judges whether battery pole piece to be cut is substandard product, if so, executing marking step；Cut width inspection
Survey step specifically includes the following steps:
Second detecting step: the image of the battery pole piece after cutting is obtained, and according to the battery pole piece after cutting
Framing obtains the both sides of the edge line in battery pole piece region, and obtains cutting according to the both sides of the edge line in battery pole piece region
The width of battery pole piece afterwards；
Second judgment step: according to the battery after the width of the battery pole piece after cutting and the judgement cutting of systemic presupposition width
Whether pole piece is substandard product, if so, executing marking step；
Marking step: starting marking machine and is substandard product mark.
Further, first judgment step is specific further include: is determined by brightness of image and geometrical characteristic wait cut
The information of the defects of battery pole piece.
Further, the information of the defect includes defect size, defective locations and defect kind.
Further, second detecting step specifically includes:
S1: the image of battery pole piece to be cut is obtained；
S2: Primary Location is carried out to the image of the battery pole piece after cutting and obtains battery pole piece region and other background areas
Domain；
S3: the both sides of the edge in battery pole piece region are obtained by image longitudinal projection method, and to the two of battery pole piece region
It is carried out at side edge except processing of making an uproar；
S4: being handled by both sides of the edge of the least square method to battery pole piece region, and then determines battery pole section
The both sides of the edge line in domain；
S5: according to the both sides of the edge line in battery pole piece region obtain between the both sides of the edge line in battery pole piece region away from
From, and then obtain the width of the battery pole piece after cutting.
The second object of the present invention adopts the following technical scheme that realization:
A kind of electronic equipment can be run on a memory and on a processor including memory, processor and storage
Computer program, the processor perform the steps of when executing described program
Open defect detecting step, cutting width detection step and marking step；Wherein open defect detecting step is specific
The following steps are included:
First detecting step: the image of battery pole piece to be cut is obtained, and is obtained according to the image of battery pole piece to be cut
Battery pole piece to be cut whether there is defect, if so, executing judgment step；
First judgment step: the information of defect is determined according to battery pole piece to be cut, and according to the information and system of defect
Preset defective data judges whether battery pole piece to be cut is substandard product, if so, executing marking step；
Cut width detection step specifically includes the following steps:
Second detecting step: the image of the battery pole piece after cutting is obtained, and according to the battery pole piece after cutting
Framing obtains the both sides of the edge line in battery pole piece region, and obtains cutting according to the both sides of the edge line in battery pole piece region
The width of battery pole piece afterwards；
Second judgment step: according to the battery after the width of the battery pole piece after cutting and the judgement cutting of systemic presupposition width
Whether pole piece is substandard product, if so, executing marking step；
Marking step: starting marking machine and is substandard product mark.
Further, first judgment step is specific further include: is determined by brightness of image and geometrical characteristic wait cut
The information of the defects of battery pole piece.
Further, the information of the defect includes defect size, defective locations and defect kind.
Further, second detecting step specifically includes: S1: obtaining the image of battery pole piece to be cut；
S2: Primary Location is carried out to the image of the battery pole piece after cutting and obtains battery pole piece region and other background areas
Domain；
S3: the both sides of the edge in battery pole piece region are obtained by image longitudinal projection method, and to the two of battery pole piece region
It is carried out at side edge except processing of making an uproar；
S4: being handled by both sides of the edge of the least square method to battery pole piece region, and then determines battery pole section
The both sides of the edge line in domain；
S5: according to the both sides of the edge line in battery pole piece region obtain between the both sides of the edge line in battery pole piece region away from
From, and then obtain the width of the battery pole piece after cutting.
The third object of the present invention adopts the following technical scheme that realization:
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
It is realized when row as used by one of the object of the invention the step of quality of battery pole piece detection method.
Compared with prior art, the beneficial effects of the present invention are:
The present invention carries out defects detection by the battery pole piece that cutting is treated in open defect detection first, then to cutting
Battery pole piece afterwards carries out cutting width detection, is greatly improved production qualification rate and production efficiency；Simultaneously also by not
Product as defined in meeting carries out mark, distinguishes management convenient for staff.
Detailed description of the invention
Fig. 1 is the flow chart of quality of battery pole piece detection method provided by the invention.
Specific embodiment
In the following, being described further in conjunction with attached drawing and specific embodiment to the present invention, it should be noted that not
Under the premise of conflicting, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Proposed by the present invention to carry out detection to quality of battery pole piece be by carrying out in terms of following two: first, being pair
Battery pole piece before cutting carries out open defect detection, and detection battery pole piece whether there is defect.Defects detection primarily directed to
The open defect of battery pole piece is detected, and carries out analysis comparison by using brightness of image and geometrical characteristic, and then can determine
Size, position, type of the open defect of battery pole piece etc..Will test the defect that obtains and preset data corresponding in system into
Row comparison judges that battery pole piece whether there is open defect, if so, to there are the battery pole pieces of open defect to carry out mark,
For example starting marking machine is its mark, distinguishes underproof product for staff.
Second, carrying out cutting width detection to the battery pole piece after cutting, the cutting of the battery pole piece after detection cutting is wide
Whether degree is qualified.Likewise, also carrying out mark to the underproof product detected, for example starting marking machine is that width is unqualified
Battery pole piece carry out mark, so that later stage work personnel distinguish underproof product.
The present invention provides quality of battery pole piece detection methods, as shown in Figure 1, comprising the following steps:
Step S11: the image of battery pole piece to be cut is obtained.Cutting battery pole piece is treated when doing open defect detection, is led to
The image that the capture apparatus such as camera obtain the battery pole piece to be cut is crossed, is then realized and is treated point by the analysis to the image
Cut the open defect detection of battery pole piece.
Step S12: the image for treating cutting battery pole piece carries out processing and obtains battery pole piece to be cut with the presence or absence of appearance
Defect, if so, executing step S13.
Step S13: determining the information of defect according to battery pole piece to be cut, and according to the information of defect and systemic presupposition
Defective data judges whether battery pole piece to be cut is qualified products, if it is not, thening follow the steps S14；If so, thening follow the steps
S15。
Step S14: starting marking machine carries out mark to the battery pole piece to be cut, and then executes step S15.Here inspection
Survey is detected for the open defect of battery pole piece to be cut, in other words, is needed to detecting that there are open defects
Battery pole piece carry out mark, then by mark after complete band cutting battery pole piece carry out slitting operation again.
Wherein, when open defect detects, image is handled by brightness of image and geometrical characteristic etc. to detect wait divide
Battery pole piece is cut with the presence or absence of defect.Specific step is as follows for open defect detection:<1>utilizes battery pole piece and background roller
The big feature of background luminance difference is divided in battery pole piece region by image binaryzation from the image of battery pole piece to be cut
Out；<2>, the characteristics of being all rectangle geometry using battery pole piece image, battery pole piece region minimum circumscribed rectangle is sought, electricity is obtained
The both sides edge of pond pole piece；<3>, in the battery pole piece region, normal battery pole piece and defective battery pole piece are utilized
Between have biggish luminance difference, the defects of battery pole piece region region is extracted by image binaryzation, and calculate and lack
Brightness, area and the geometrical characteristic in region are fallen into, and then is classified to defect area；<4>, it in pole piece marginal position, utilizes
The background luminance difference of battery pole piece and background roller, judges whether the edge in battery pole piece region is die cut completely；In combination with
The information of corresponding defect is preset in system to judge size, position, the type etc. of battery pole piece existing defects to be cut, Jin Erke
Know whether the battery pole piece to be cut is unqualified.
Step S2: it treats cutting battery pole piece and carries out slitting operation.When cutting battery pole piece qualification, then execute corresponding
Slitting operation.After the completion of cutting, cutting width detection is carried out.Due to production technology, regardless of battery pole to be cut
Piece whether there is open defect, will do it slitting operation, the battery of open defect can be will be present by then arriving next technique
Pole piece cutting piece, which is equal to, normally to be separated.
Step S31: the image of the battery pole piece after obtaining cutting.
Step S32: the image of the battery pole piece after cutting is carried out Primary Location and searched to obtain battery pole in the image
The both sides of the edge line of panel region.
Step S33: the width of the battery pole piece after cutting is determined according to the both sides of the edge line in battery pole piece region, and is judged
Whether the width of the battery pole piece after the cutting is qualified, if so, the battery pole piece after cutting is qualified products；If it is not, holding
Row step S34.
Step S34: starting marking machine is that the battery pole piece after the underproof cutting of width carries out mark.
After cutting battery pole piece cutting, battery pole piece after obtaining multiple cuttings passes through the capture apparatus such as camera
Then battery pole piece after obtaining each cutting is handled the image of the battery pole piece after each cutting, and then obtain every
The width of battery pole piece after a cutting, and judge the width whether with systemic presupposition equivalent width, if so, after illustrating cutting
Battery pole piece be qualified products, if it is not, then unqualified.
In addition, when marking, corresponding mark signal can be sent to marking machine by controller, and then start marking machine and be
Corresponding substandard product mark, such as the battery pole piece after cutting battery pole piece, the cutting that width is not inconsistent of existing defects
Deng.In the actual use process, cooperate two marking machines, the detection of system automatic Synthesis open defect and cutting width detection
As a result, export bad print signal to marking machine by PLC communication so that marking machine starts, realization is in a piece of battery
Automatic marking at the hole the MARK 400mm of the tail end of pole piece.
In addition, that is to say that step S32 is specifically further comprising the steps of in the width of the battery pole piece after detection is cut:
Step A1: Primary Location is carried out by the image to the battery pole piece after cutting, analysis obtains the electricity in the image
Pond pole piece region and other background areas.Since the image grayscale difference of battery pole piece region and background area is bigger, can lead to
Cross the differentiation that battery pole piece region Yu other background areas can be realized using the method for Threshold segmentation.
Since the battery pole piece after cutting is usually to pass through the roller etc. of cutting machine, captured by image in not only only have
The image of battery pole piece also has the image of other equipment, therefore searches and distinguish first from the image of the battery pole piece after cutting
Battery pole piece region and other background areas out.
Step A2: the both sides of the edge in battery pole piece region are obtained by image longitudinal projection method, and to battery pole piece region
Both sides of the edge at interference carry out except making an uproar.Due to battery pole piece region and other background areas (such as background roller region)
Longitudinal projection's difference in brightness is very big, therefore the two sides for obtaining battery pole piece region can be identified by image longitudinal projection method
Edge.In addition, since the brightness of the image longitudinal projection in battery pole piece region is more stable, it can be by those brightness shakiness
The noise spot in fixed region is removed, so that the later period searches the optimum position of both sides of the edge line.
Step A3: it carries out handling determining battery pole piece region by both sides of the edge of the least square method to battery pole piece region
Both sides of the edge line.Steps are as follows: step<1>for specific calculating: being handled the both sides of the edge in battery pole piece region to obtain n
Edge point coordinate data (R1, C1) ..., (Rn, Cn)；Step<2>: over-determined systems R=A*C is sought according to these n marginal point
The parametric solution of+B, in which: I be [1, n], j be [1,
n]；Step<3>: then, Δ R is calculatedi=(Ri-A*C-B)2, and by maximum Δ Ri20% point (Ri, Ci) weed out, turn
To step<2>, A and B are finally recalculated, A and B have determined that straight line, and then can determine and obtain battery pole piece region
Both sides of the edge line.
Step A4: according to the both sides of the edge line computation in battery pole piece region obtain battery pole piece region both sides of the edge line it
Between distance, and then according to the distance between the both sides of the edge line in battery pole piece region obtain cutting after battery pole piece width
Degree.
When cutting width detection, for example by 2 4K line-scan digital cameras of installation, cooperate corresponding camera lens and LED light source pair
The coating wide cut of battery pole piece after cutting carries out Image Acquisition, then sends images to corresponding controller and is handled.
It can realize that the detection leakage of product qualification kills rate less than 0.1% through the invention, detection manslaughters rate less than 0.1%, greatly
The big qualification rate for improving product.Wherein, sum/total the piece number of detection pole piece is killed in the detection leakage rate of killing=leakage；Rate=manslaughter is manslaughtered in detection
Sum/detection pole piece sum.
The present invention also provides a kind of electronic equipment comprising memory, processor and storage are on a memory and can
The computer program run in processing, the processor realize quality of battery pole piece as described herein when executing described program
The step of detection method.
The present invention also provides a kind of computer readable storage mediums, are stored thereon with computer program, computer program
The step of quality of battery pole piece detection method as described herein is realized when being executed by processor.
The above embodiment is only the preferred embodiment of the present invention, and the scope of protection of the present invention is not limited thereto,
The variation and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed range.
Claims (9)
1. a kind of quality of battery pole piece detection method, it is characterised in that: including open defect detecting step, cutting width detection step
Rapid and marking step；Wherein open defect detecting step specifically includes the following steps:
First detecting step: the image of battery pole piece to be cut is obtained, and is obtained according to the image of battery pole piece to be cut wait divide
Battery pole piece is cut with the presence or absence of defect, if so, executing judgment step；
First judgment step: the information of defect is determined according to battery pole piece to be cut, and according to the information and systemic presupposition of defect
Defective data judge whether battery pole piece to be cut is substandard product, if so, execute marking step；
Cut width detection step specifically includes the following steps:
Second detecting step: the image of the battery pole piece after cutting is obtained, and according to the image of the battery pole piece after cutting
Positioning obtains the both sides of the edge line in battery pole piece region, and after obtaining cutting according to the both sides of the edge line in battery pole piece region
The width of battery pole piece；
Second judgment step: according to the battery pole piece after the width of the battery pole piece after cutting and the judgement cutting of systemic presupposition width
It whether is substandard product, if so, executing marking step；
Marking step: starting marking machine and is substandard product mark.
2. quality of battery pole piece detection method according to claim 1, it is characterised in that: first judgment step is specific
Further include: the information of the defects of battery pole piece to be cut is determined by brightness of image and geometrical characteristic.
3. quality of battery pole piece detection method according to claim 2, it is characterised in that: the information of the defect includes lacking
Fall into size, defective locations and defect kind.
4. quality of battery pole piece detection method according to claim 1, it is characterised in that: second detecting step is specific
Include:
S1: the image of battery pole piece to be cut is obtained；
S2: Primary Location is carried out to the image of the battery pole piece after cutting and obtains battery pole piece region and other background areas；
S3: the both sides of the edge in battery pole piece region are obtained by image longitudinal projection method, and to the two sides in battery pole piece region
It is carried out at edge except processing of making an uproar；
S4: being handled by both sides of the edge of the least square method to battery pole piece region, and then determines battery pole piece region
Both sides of the edge line；
S5: obtaining the distance between the both sides of the edge line in battery pole piece region according to the both sides of the edge line in battery pole piece region, into
And obtain the width of the battery pole piece after cutting.
5. a kind of electronic equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, it is characterised in that: the processor performs the steps of when executing described program
Open defect detecting step, cutting width detection step and marking step；Wherein open defect detecting step specifically includes
Following steps:
First detecting step: the image of battery pole piece to be cut is obtained, and is obtained according to the image of battery pole piece to be cut wait divide
Battery pole piece is cut with the presence or absence of defect, if so, executing judgment step；
First judgment step: the information of defect is determined according to battery pole piece to be cut, and according to the information and systemic presupposition of defect
Defective data judge whether battery pole piece to be cut is substandard product, if so, execute marking step；
Cut width detection step specifically includes the following steps:
Second detecting step: the image of the battery pole piece after cutting is obtained, and according to the image of the battery pole piece after cutting
Positioning obtains the both sides of the edge line in battery pole piece region, and after obtaining cutting according to the both sides of the edge line in battery pole piece region
The width of battery pole piece；
Second judgment step: according to the battery pole piece after the width of the battery pole piece after cutting and the judgement cutting of systemic presupposition width
It whether is substandard product, if so, executing marking step；
Marking step: starting marking machine and is substandard product mark.
6. electronic equipment according to claim 5, it is characterised in that: first judgment step is specific further include: passes through
Brightness of image and geometrical characteristic determine the information of the defects of battery pole piece to be cut.
7. electronic equipment according to claim 6, it is characterised in that: the information of the defect includes defect size, defect
Position and defect kind.
8. electronic equipment according to claim 5, it is characterised in that: second detecting step specifically includes: S1: obtaining
The image of battery pole piece to be cut；
S2: Primary Location is carried out to the image of the battery pole piece after cutting and obtains battery pole piece region and other background areas；
S3: the both sides of the edge in battery pole piece region are obtained by image longitudinal projection method, and to the two sides in battery pole piece region
It is carried out at edge except processing of making an uproar；
S4: being handled by both sides of the edge of the least square method to battery pole piece region, and then determines battery pole piece region
Both sides of the edge line；
S5: obtaining the distance between the both sides of the edge line in battery pole piece region according to the both sides of the edge line in battery pole piece region, into
And obtain the width of the battery pole piece after cutting.
9. a kind of computer readable storage medium, is stored thereon with computer program, it is characterised in that: the computer program quilt
It realizes when processor executes such as the step of quality of battery pole piece detection method of any of claims 1-4.
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| CN111312995A (en) * | 2020-03-03 | 2020-06-19 | 华鼎国联四川动力电池有限公司 | Lithium ion battery pole piece defect detection method |
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