WO2023193130A1 - 隔膜的检测方法、装置及设备 - Google Patents
隔膜的检测方法、装置及设备 Download PDFInfo
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- WO2023193130A1 WO2023193130A1 PCT/CN2022/085253 CN2022085253W WO2023193130A1 WO 2023193130 A1 WO2023193130 A1 WO 2023193130A1 CN 2022085253 W CN2022085253 W CN 2022085253W WO 2023193130 A1 WO2023193130 A1 WO 2023193130A1
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Definitions
- This application relates to the field of battery technology, and specifically to a separator detection method, device and equipment.
- the separators overlapped on both sides of the anode plate are prone to misalignment, which may lead to a reduction in battery performance.
- the pole pieces to be inspected that do not meet the requirements due to misalignment after superposition are rejected.
- this application provides a method, device and equipment for detecting diaphragms.
- this application provides a method for detecting diaphragms, including:
- Obtain a target image of the pole piece to be detected which includes an anode pole piece and diaphragms respectively stacked on both sides of the anode pole piece;
- the diaphragm in the pole piece to be detected is detected for misalignment.
- the target image of the pole piece to be detected is obtained, the target image is image processed, the target image area corresponding to the diaphragm in the target image is determined, and based on the target image area, the diaphragm in the pole piece to be detected is dislocated. detection.
- the image area corresponding to the diaphragm in the image of the pole piece to be detected can be used to detect whether the diaphragm in the pole piece to be detected is misaligned. Compared with determining the misalignment of the diaphragm through human experience, it can not only improve the accuracy of detection, but also It can improve detection efficiency.
- diaphragm misalignment detection is performed on the pole piece to be detected, including:
- the diaphragm misalignment result of the pole piece to be detected is determined, and the diaphragm misalignment result is used to indicate whether the diaphragm of the pole piece to be detected is misaligned.
- obtaining the number of diaphragm image sub-regions in the target image region includes:
- N is a positive integer
- N is the number of diaphragm image sub-regions in the target image.
- the process of determining the number of diaphragm image sub-regions in the target image is performed by performing grayscale image segmentation processing on the target image area and determining the number of diaphragm image sub-regions according to different grayscales in the target image area.
- the process is simpler and more accurate.
- the separator misalignment result of the pole piece to be detected is determined based on the number of separator image sub-regions in the target image area, including:
- the diaphragm misalignment result of the pole piece to be detected is determined as the first sub-result, and the first sub-result is used to indicate that the diaphragm of the pole piece to be detected is not dislocation;
- the diaphragm misalignment result of the pole piece to be detected is determined to be the second sub-result, wherein the second preset number is different from the first preset number.
- the second sub-result is used to indicate the diaphragm misalignment of the pole piece to be detected.
- the first values respectively used to indicate whether the diaphragm of the pole piece to be detected are misaligned can be obtained.
- the sub-result and the second sub-result make it simpler and faster to determine whether the diaphragm of the pole piece to be detected is misaligned.
- it also includes:
- the third preset number When the number of diaphragm image sub-regions in the target image is the third preset number, a fault prompt message is output, and the third preset number is different from the first preset number and the second preset number.
- the lamination equipment can output fault prompt information to remind timely troubleshooting and reduce the defective rate of battery pole pieces.
- the method further includes:
- the amount of misalignment of the diaphragm in the pole piece to be detected is determined based on the target image area.
- the stacking equipment can determine the misalignment of the diaphragm in the pole piece to be detected based on the target image area, so that the misalignment amount can intuitively reflect the pole piece to be detected. Check the diaphragm misalignment of the film and provide reference for subsequent production.
- the amount of misalignment of the separator in the pole piece to be detected is determined based on the target image area, including:
- the distance between the edge of the first region and the edge of the second region is determined as the misalignment amount of the diaphragm in the pole piece to be detected.
- the corresponding first and second region edges in the single-layer diaphragm region and the double-layer diaphragm region of the target image are obtained, and the first The distance between the edge of the region and the edge of the second region is determined as the misalignment amount of the pole piece to be detected, thereby making the determined misalignment amount of the diaphragm more accurate.
- it also includes:
- the edge of the third region which is the edge of the image region corresponding to the anode pole piece or the cathode pole piece in the target image; the edge of the third region corresponds to the edge of the second region;
- the lamination device can also obtain the third area edge of the image area corresponding to the anode pole piece or the cathode pole piece, and determine the distance between the third area edge and the second area edge, thereby determining the double edge in the target image.
- the distance between the edge of the separator and the edge of the anode or cathode plate is used to control the production of the battery pole through this distance.
- this application also provides a diaphragm detection device, including:
- the image acquisition module is used to acquire the target image of the pole piece to be detected.
- the pole piece to be detected includes an anode pole piece and diaphragms respectively stacked on both sides of the anode pole piece;
- an image area determination module used to perform image processing on the target image and determine the target image area in the target image, where the target image area includes the image area corresponding to the diaphragm;
- a misalignment detection module configured to detect diaphragm misalignment of the pole piece to be detected based on the target image area.
- the target image of the pole piece to be detected is obtained, the target image is image processed, the target image area corresponding to the diaphragm in the target image is determined, and based on the target image area, the diaphragm in the pole piece to be detected is dislocated. detection.
- the image area corresponding to the diaphragm in the image of the pole piece to be detected can be used to detect whether the diaphragm in the pole piece to be detected is misaligned. Compared with determining the misalignment of the diaphragm through human experience, it can not only improve the accuracy of detection, but also It can improve detection efficiency.
- the misalignment detection module includes:
- a region number acquisition unit used to acquire the number of diaphragm image sub-regions in the target image region
- a misalignment result determination unit configured to determine a diaphragm misalignment result of the pole piece to be detected based on the number of diaphragm image sub-regions in the target image area, where the diaphragm misalignment result is used to indicate the diaphragm of the pole piece to be detected. Is it misaligned?
- the area quantity acquisition unit is specifically used for:
- N is a positive integer
- N is the number of diaphragm image sub-regions in the target image.
- the process of determining the number of diaphragm image sub-regions in the target image is performed by performing grayscale image segmentation processing on the target image area and determining the number of diaphragm image sub-regions according to different grayscales in the target image area.
- the process is simpler and more accurate.
- the misalignment result determination unit includes:
- a first sub-result determination sub-unit configured to determine the diaphragm dislocation result of the pole piece to be detected as the first sub-result when the number of diaphragm image sub-regions in the target image is a first preset number, The first sub-result is used to indicate that the diaphragm of the pole piece to be detected is not misaligned;
- the second sub-result determination sub-unit is used to determine the diaphragm dislocation result of the pole piece to be detected as the second sub-result when the number of diaphragm image sub-regions in the target image is a second preset number, wherein, the second preset number is different from the first preset number, and the second sub-result is used to indicate the diaphragm misalignment of the pole piece to be detected.
- the first values respectively used to indicate whether the diaphragm of the pole piece to be detected are misaligned can be obtained.
- the sub-result and the second sub-result make it simpler and faster to determine whether the diaphragm of the pole piece to be detected is misaligned.
- it also includes:
- a prompt information output module configured to output fault prompt information when the number of diaphragm image sub-regions in the target image is a third preset number, and the third preset number is the same as the first preset number and the third preset number.
- the two preset quantities are different.
- the lamination equipment can output fault prompt information to remind timely troubleshooting and reduce the defective rate of battery pole pieces.
- it also includes:
- a misalignment amount determination module configured to determine the misalignment amount of the separator in the pole piece to be detected based on the target image area when a misalignment of the diaphragm of the pole piece to be detected is detected.
- the stacking equipment can determine the misalignment of the diaphragm in the pole piece to be detected based on the target image area, so that the misalignment amount can intuitively reflect the pole piece to be detected. Check the diaphragm misalignment of the film and provide reference for subsequent production.
- the misalignment amount determination module includes:
- a diaphragm area determination unit configured to determine the single-layer diaphragm area and the double-layer diaphragm area in the diaphragm image sub-region of the target image when a diaphragm dislocation indicating the pole piece to be detected is detected;
- An edge detection unit is used to perform edge detection on the single-layer diaphragm area and the double-layer diaphragm area respectively to obtain the first area edge of the single-layer diaphragm area and the second area edge of the double-layer diaphragm area, The second area edge corresponds to the first area edge;
- a misalignment amount determination unit is used to determine that the distance between the edge of the first region and the edge of the second region is the misalignment amount of the diaphragm in the pole piece to be detected.
- the corresponding first and second region edges in the single-layer diaphragm region and the double-layer diaphragm region of the target image are obtained, and the first The distance between the edge of the region and the edge of the second region is determined as the misalignment amount of the pole piece to be detected, thereby making the determined misalignment amount of the diaphragm more accurate.
- it also includes:
- An edge acquisition module configured to acquire a third area edge, where the third area edge is an edge of an image area corresponding to the anode pole piece or the cathode pole piece in the target image; the third area edge is consistent with the third area edge.
- the edges of the two regions correspond;
- a distance determination module configured to determine the distance between the edge of the third area and the edge of the second area.
- the lamination device can also obtain the third area edge of the image area corresponding to the anode pole piece or the cathode pole piece, and determine the distance between the third area edge and the second area edge, so that the double edge in the target image can be determined.
- the distance between the edge of the separator and the edge of the anode or cathode plate is used to control the production of the battery pole through this distance.
- the present application also provides a stacking device, including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
- a stacking device including a processor, a memory, and a program or instruction stored in the memory and executable on the processor.
- the program or instruction is executed by the processor, the implementation of the first aspect is implemented. Diaphragm detection method steps.
- the present application also provides a readable storage medium in which a program or instructions are stored. When the program or instructions are executed by a processor, the steps of the separator detection method of the first aspect are implemented.
- Figure 1 is a schematic structural diagram of the lamination equipment provided by this application.
- Figure 2 is a schematic flow chart of an embodiment of a separator detection method provided by the present application.
- Figure 3 is a schematic structural diagram of a photographing device in an embodiment of a diaphragm detection method provided by this application;
- Figure 4 is a schematic diagram of a target image in an embodiment of the separator detection method provided by this application.
- Figure 5 is a schematic structural diagram of an embodiment of a diaphragm detection device provided by this application.
- Figure 6 is a schematic diagram of the hardware structure of an embodiment of the lamination equipment provided by this application.
- an embodiment means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application.
- the appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art understand, both explicitly and implicitly, that the embodiments described herein may be combined with other embodiments.
- multiple refers to more than two (including two).
- multiple groups refers to two or more groups (including two groups), and “multiple pieces” refers to It is more than two pieces (including two pieces).
- the lamination equipment first assembles the anode pole piece 10, the first separator (also called the “upper separator") 20 and the The second diaphragm (also referred to as the "lower diaphragm”) 30 is transported to position A, and the anode plate 10, the first diaphragm 20 and the second diaphragm 30 are overlapped at the position A to form a laminate; then, the laminates,
- the first cathode plate (also called the “upper cathode plate”) 40 and the second cathode plate (also called the “lower cathode plate”) 50 are transported to position B, and the first cathode plate is transported to position B.
- the pole piece 40, the second cathode pole piece 50 and the laminate are stacked to form a battery pole piece.
- the first separator 20 and the second separator 30 stacked on both sides of the anode pole piece 10 are prone to misalignment, which may lead to reduced battery performance. . Therefore, in order to ensure the quality of the battery, it is necessary to perform misalignment detection on the first separator 20 and the second separator 30 to eliminate the battery pole pieces that do not meet the requirements due to misalignment after stacking.
- the misalignment detection of the first diaphragm 20 and the second diaphragm 30 is currently usually determined by manual experience, and manual experience is prone to errors, resulting in low detection accuracy.
- this application provides a diaphragm detection method, device and equipment.
- FIG. 2 is a schematic flow chart of an embodiment of a diaphragm detection method provided by this application.
- the diaphragm detection method is applied to the above-mentioned lamination equipment.
- the detection method of the diaphragm includes the following steps 201 to 203:
- Step 201 Obtain a target image of the pole piece to be detected.
- the pole piece to be detected includes an anode pole piece and diaphragms respectively stacked on both sides of the anode pole piece;
- Step 202 Perform image processing on the target image to determine the target image area in the target image;
- Step 203 Based on the target image area, perform misalignment detection on the diaphragm in the pole piece to be detected.
- the target image of the pole piece to be detected is obtained, the target image is image processed, the target image area corresponding to the diaphragm in the target image is determined, and based on the target image area, the diaphragm in the pole piece to be detected is dislocated. detection.
- the image area corresponding to the diaphragm in the image of the pole piece to be detected can be used to detect whether the diaphragm in the pole piece to be detected is misaligned. Compared with determining the misalignment of the diaphragm through human experience, it can not only improve the accuracy of detection, but also It can improve detection efficiency.
- the lamination equipment can obtain the target image of the produced pole pieces to be detected.
- the above-mentioned pole piece to be detected includes an anode pole piece and separators respectively stacked on both sides of the anode pole piece.
- the electrode piece to be detected may be a laminate formed by superposing the anode electrode piece 10, the first diaphragm 20 and the second diaphragm 30 at position A; or, the electrode piece to be detected may also be a laminate formed by the above lamination and The first cathode pole piece 40 and the second cathode pole piece 50 are stacked at position B to form a battery pole piece.
- the above-mentioned acquisition of the target image of the pole piece to be detected may be provided with a photographing device in the stacking equipment, and the image of the pole piece to be detected is captured in real time by the photographing device as the target image.
- the photographing device provided in the above-mentioned lamination equipment can be arranged at any position where the above-mentioned target image can be photographed.
- the photographing device can be located at any transmission position after superimposing the position where the above-mentioned pole piece to be detected is formed.
- the above-mentioned photographing device may be installed at any transfer position between position A and position B in the above-mentioned lamination equipment, so that the image of the above-mentioned lamination can be photographed as the above-mentioned target image; or, the above-mentioned lamination device may be installed
- the above-mentioned photographing device is installed at any transmission position after position B in the film equipment, so that the image of the above-mentioned battery pole piece can be photographed as the above-mentioned target image.
- the photographing device may be arranged at position C as shown in FIG. 1 .
- the above-mentioned lamination equipment is provided with a photographing device, and the photographing angle of the photographing device may be at any angle capable of photographing the above-mentioned target image.
- the above-mentioned photographing device 31 can be provided on either side of the pole piece to be detected, and the photographing direction of the photographing device 31 is perpendicular to the transmission direction X of the pole piece to be detected; or, it can also be set
- the shooting direction of the shooting device 31 is set at a preset angle with the pole piece to be detected, and the preset focal length can be 30° to 90°, etc.
- the above-mentioned lamination device may perform image processing on the target image and determine the target image area in the target image (which may also be referred to as the "image area of interest").
- the target image area may be an image area corresponding to the separator attached to both sides of the anode plate.
- the above-mentioned target image area may include a diaphragm image sub-region of the anode plate and the diaphragm on one side (also referred to as a "single-layer diaphragm region"), and may also include a diaphragm image sub-region of the anode plate and the diaphragm on both sides. (also called "double membrane area”), etc.
- the image of the battery pole piece (i.e., the target image) may be as shown in FIG. 4 , and the image may include a double-layer separator region 41 and a single-layer separator region 42 , the double-layer diaphragm area 41 includes the image sub-area where the anode electrode piece 10, the first diaphragm 20 and the second diaphragm 30 overlap; the diaphragm image area 42 includes the anode electrode piece 10 and the first diaphragm 20 or the second diaphragm 30. Image subregion under overlap.
- the above-mentioned image processing of the target image to determine the target image area in the target image can be performed by grayscale of the target image through a preconfigured image processing algorithm, and the grayscaled image is converted into grayscale according to each image in the image.
- the grayscale of the area is different.
- the grayscaled image is segmented into image areas to obtain the above target image area.
- the above-mentioned grayscale conversion of the target image may be performed on the entire image area of the target image; or, it may also be performed by first locating the diaphragm image area, which is an image area containing at least one layer of diaphragm, and then The diaphragm image area is then grayscaled, and finally the grayscaled diaphragm image area is segmented.
- the lamination device may perform misalignment detection of the separator in the electrode piece to be detected based on the target image area.
- the above-mentioned misalignment detection of the diaphragm in the pole piece to be detected based on the target image area can be done by first using a pre-configured image recognition algorithm to identify whether there is a single-layer diaphragm area in the target image area, and after identifying the single-layer diaphragm area. In this case, it is determined that the diaphragm in the pole piece to be detected is misaligned; in the case where it is recognized that there is no single-layer diaphragm area, it is determined that the diaphragm in the pole piece to be detected is not misaligned.
- the lamination device can divide the image area of interest according to the grayscale in the image to obtain at least one image sub-region.
- the lamination device determines whether there is a single-layer diaphragm region with a gray-scale value close to or equal to a preset gray-scale value based on the gray-scale value of each image sub-region, and the pre-set gray-scale value is used for Indicates that the image sub-area is an image area of a single-layer diaphragm.
- the diaphragm dislocation of the pole piece to be detected is determined; if there is no grayscale value close to or equal to The preset gray value of the single-layer diaphragm area confirms that the diaphragm of the pole piece to be detected is not misaligned.
- performing diaphragm misalignment detection on the pole piece to be detected includes:
- the diaphragm misalignment result of the pole piece to be detected is determined, and the diaphragm misalignment result is used to indicate whether the diaphragm of the pole piece to be detected is misaligned.
- the above-mentioned acquisition of the number of diaphragm image sub-regions in the target image area may be through an image processing algorithm, detecting the contours of different image sub-regions in the above-mentioned target image area, and determining the number of image sub-regions with different contours as the above-mentioned target.
- the number of diaphragm image subregions in the image area may be through an image processing algorithm, detecting the contours of different image sub-regions in the above-mentioned target image area, and determining the number of image sub-regions with different contours as the above-mentioned target.
- obtaining the number of diaphragm image sub-regions in the target image region includes:
- N is a positive integer.
- N may be the number of diaphragm image sub-regions in the target image.
- the process of determining the number of diaphragm image sub-regions in the target image is performed by performing grayscale image segmentation processing on the target image area and determining the number of diaphragm image sub-regions according to different grayscales in the target image area.
- the process is simpler and more accurate.
- the separator misalignment result of the pole piece to be detected is determined based on the number of separator image sub-regions in the target image area, including:
- the diaphragm misalignment result of the pole piece to be detected is determined as the first sub-result, and the first sub-result is used to indicate that the diaphragm of the pole piece to be detected is not dislocation;
- the diaphragm misalignment result of the pole piece to be detected is determined to be the second sub-result, wherein the second preset number is different from the first preset number.
- the second sub-result is used to indicate the diaphragm misalignment of the pole piece to be detected.
- the first values respectively used to indicate whether the diaphragm of the pole piece to be detected are misaligned can be obtained.
- the sub-result and the second sub-result make it simpler and faster to determine whether the diaphragm of the pole piece to be detected is misaligned.
- the above-mentioned first preset number and the above-mentioned second preset number may be different preset numbers, and when the number of diaphragm image sub-regions is the first preset number, the diaphragm of the pole piece to be detected is not misplaced, that is, the diaphragm to be detected is not misplaced.
- the diaphragms that overlap the two sides of the anode electrode piece in the detection pole piece are aligned relative to the anode pole piece; and when the number of diaphragm image sub-regions is the second preset number, the diaphragm of the pole piece to be detected is misaligned, that is, the diaphragm of the pole piece to be detected is misaligned, that is, the diaphragm of the pole piece to be detected is Detect that the diaphragms that overlap the two sides of the anode pole piece are not aligned relative to the anode pole piece.
- the image area corresponding to the diaphragm only includes
- the above-mentioned first preset number can be set to 1. Then, if the lamination equipment determines that the number of diaphragm image sub-regions in the above-mentioned target image is 1, then the polarity to be detected is determined.
- the diaphragms of the film are not misaligned; and when the first diaphragm 20 and the second diaphragm 30 are aligned relative to the anode plate 10, in the image captured by the shooting device, the image area corresponding to the diaphragm may include a double-layer diaphragm. Area 41 and single-layer diaphragm area 42, that is, the above-mentioned first preset number can be set to 2. Then, if the lamination equipment determines that the number of diaphragm image sub-regions in the above-mentioned target image is 2, then the diaphragm of the pole piece to be detected is determined. dislocation.
- it also includes:
- the fault prompt information is output, and the third preset number is different from the first preset number and the second preset number.
- the lamination equipment can output fault prompt information to remind timely troubleshooting and reduce the defective rate of battery pole pieces.
- the above-mentioned output of the fault prompt information may be realized by at least one of warning lights, display information, voice broadcast, etc.
- the above-mentioned third preset number is a number different from the first preset number and the second preset number, and when the number of diaphragm image sub-regions is the third preset number, the stacking device can determine the pole piece to be detected There is no diaphragm.
- the stacking equipment can display the "NG" logo in its display interface to prompt the operator to stop.
- the method further includes:
- the amount of misalignment of the diaphragm in the pole piece to be detected is determined based on the target image area.
- the stacking equipment can determine the misalignment of the diaphragm in the pole piece to be detected based on the target image area, so that the misalignment amount can intuitively reflect the pole piece to be detected. Check the diaphragm misalignment of the film and provide reference for subsequent production.
- the amount of misalignment of the diaphragm in the pole piece to be detected can be determined based on the number of diaphragm image sub-regions in the target image area.
- the target image area determines the misalignment amount of the diaphragm in the pole piece to be detected.
- the above is based on the diaphragm image sub-region in the target image to determine the misalignment of the diaphragm in the pole piece to be detected.
- the stacking device can obtain the single-layer diaphragm area including the anode pole piece and the diaphragm on one side, and then determine the single-layer diaphragm area.
- the number of pixel points in the above-mentioned width direction, and the misalignment amount of the diaphragm in the pole piece to be detected is determined based on the number of pixel points.
- the misalignment amount of the diaphragm may be a width value in a width direction perpendicular to the transmission direction of the pole piece to be detected, and the misalignment amount is used to reflect the size of the misalignment of the diaphragms on both sides of the pole piece to be detected.
- the amount of misalignment of the separator in the pole piece to be detected is determined based on the target image area, including:
- the distance between the edge of the first region and the edge of the second region is determined as the misalignment amount of the diaphragm in the pole piece to be detected.
- the corresponding first and second region edges in the single-layer diaphragm region and the double-layer diaphragm region of the target image are obtained, and the first The distance between the edge of the region and the edge of the second region is determined as the misalignment amount of the pole piece to be detected, thereby making the determined misalignment amount of the diaphragm more accurate.
- the above-mentioned determination of the single-layer diaphragm area and the double-layer diaphragm area in the diaphragm image sub-region of the target image can be done by performing grayscale processing on the target image area, and then determining the single-layer diaphragm according to the grayscale of each diaphragm image sub-region in the target image area. area and double diaphragm area. Since a single-layer diaphragm has higher light transmittance than a double-layer diaphragm, the grayscale of the single-layer diaphragm area is usually lower than the grayscale of the double-layer diaphragm area.
- the second area edge corresponds to the first area edge, and may be two area edges connected to the single-layer membrane area in the width direction.
- the lamination equipment can detect the edge 411 (ie, the second edge area) of the double-layer membrane area 41, and , the edge 421 (ie, the first edge area) of the single-layer diaphragm area 42 is detected, and the distance between the edge 411 and the edge 421 is determined as the misalignment amount of the diaphragm.
- the above method further includes:
- the edge of the third region which is the edge of the image region corresponding to the anode pole piece or the cathode pole piece in the target image; the edge of the third region corresponds to the edge of the second region;
- the lamination device can also obtain the third area edge of the image area corresponding to the anode pole piece or the cathode pole piece, and determine the distance between the third area edge and the second area edge, so that the double edge in the target image can be determined.
- the distance between the edge of the separator and the edge of the anode or cathode plate is used to control the production of the battery pole through this distance.
- the above-mentioned acquisition of the edge of the third area may be performed when the lamination equipment determines that there is a misalignment of the pole piece to be detected; or, it may also be performed when the lamination equipment determines that there is no misalignment of the pole piece to be detected, which is not the case here. Not limited.
- the lamination device can also obtain the edge 431 of the image area 43 corresponding to the anode plate (ie, the third area edge), and determine the distance between edge 431 and edge 421. Finally, the distance between edge 431 and edge 421, and the distance between edge 421 and edge 411 are uploaded to the processor of the stacking device to control the battery poles through the two obtained distances. Film production.
- FIG. 5 is a schematic structural diagram of an embodiment of a diaphragm detection device provided by this application.
- the diaphragm detection device 500 includes:
- the image acquisition module 501 is used to acquire the target image of the pole piece to be detected.
- the pole piece to be detected includes an anode pole piece and diaphragms respectively stacked on both sides of the anode pole piece;
- the image area determination module 502 is used to perform image processing on the target image and determine the target image area in the target image, where the target image area includes the image area corresponding to the diaphragm;
- the misalignment detection module 503 is configured to perform diaphragm misalignment detection on the pole piece to be detected based on the target image area.
- the target image of the pole piece to be detected is obtained, the target image is image processed, the target image area corresponding to the diaphragm in the target image is determined, and based on the target image area, the diaphragm in the pole piece to be detected is dislocated. detection.
- the image area corresponding to the diaphragm in the image of the pole piece to be detected can be used to detect whether the diaphragm in the pole piece to be detected is misaligned. Compared with determining the misalignment of the diaphragm through human experience, it can not only improve the accuracy of detection, but also It can improve detection efficiency.
- the misalignment detection module 503 includes:
- the area number acquisition module is used to obtain the number of diaphragm image sub-areas in the target image area
- the misalignment result determination module is used to determine the diaphragm misalignment result of the pole piece to be detected based on the number of diaphragm image sub-regions in the target image area, and the diaphragm misalignment result is used to indicate whether the diaphragm of the pole piece to be detected is misaligned.
- the area quantity acquisition unit is specifically used for:
- N is a positive integer
- N is the number of diaphragm image sub-regions in the target image.
- the process of determining the number of diaphragm image sub-regions in the target image is performed by performing grayscale image segmentation processing on the target image area and determining the number of diaphragm image sub-regions according to different grayscales in the target image area.
- the process is simpler and more accurate.
- the misalignment result determination unit includes:
- a first sub-result determination sub-unit configured to determine the diaphragm dislocation result of the pole piece to be detected as the first sub-result when the number of diaphragm image sub-regions in the target image is a first preset number, The first sub-result is used to indicate that the diaphragm of the pole piece to be detected is not misaligned;
- the second sub-result determination sub-unit is used to determine the diaphragm dislocation result of the pole piece to be detected as the second sub-result when the number of diaphragm image sub-regions in the target image is a second preset number, wherein, the second preset number is different from the first preset number, and the second sub-result is used to indicate the diaphragm misalignment of the pole piece to be detected.
- the first values respectively used to indicate whether the diaphragm of the pole piece to be detected are misaligned can be obtained.
- the sub-result and the second sub-result make it simpler and faster to determine whether the diaphragm of the pole piece to be detected is misaligned.
- it also includes:
- a prompt information output module configured to output fault prompt information when the number of diaphragm image sub-regions in the target image is a third preset number, and the third preset number is the same as the first preset number and the third preset number.
- the two preset quantities are different.
- the lamination equipment can output fault prompt information to remind timely troubleshooting and reduce the defective rate of battery pole pieces.
- it also includes:
- a misalignment amount determination module configured to determine the misalignment amount of the separator in the pole piece to be detected based on the target image area when a misalignment of the diaphragm of the pole piece to be detected is detected.
- the stacking equipment can determine the misalignment of the diaphragm in the pole piece to be detected based on the target image area, so that the misalignment amount can intuitively reflect the pole piece to be detected. Check the diaphragm misalignment of the film and provide reference for subsequent production.
- the misalignment amount determination module includes:
- a diaphragm area determination unit configured to determine the single-layer diaphragm area and the double-layer diaphragm area in the diaphragm image sub-area of the target image when a diaphragm misalignment indicating the pole piece to be detected is detected;
- An edge detection unit is used to perform edge detection on the single-layer diaphragm area and the double-layer diaphragm area respectively to obtain the first area edge of the single-layer diaphragm area and the second area edge of the double-layer diaphragm area, The second area edge corresponds to the first area edge;
- a misalignment amount determination unit is used to determine that the distance between the edge of the first region and the edge of the second region is the misalignment amount of the diaphragm in the pole piece to be detected.
- the corresponding first and second region edges in the single-layer diaphragm region and the double-layer diaphragm region of the target image are obtained, and the first The distance between the edge of the region and the edge of the second region is determined as the misalignment amount of the pole piece to be detected, thereby making the determined misalignment amount of the diaphragm more accurate.
- it also includes:
- An edge acquisition module configured to acquire a third area edge, where the third area edge is an edge of an image area corresponding to the anode pole piece or the cathode pole piece in the target image; the third area edge is consistent with the third area edge.
- the edges of the two regions correspond;
- a distance determination module configured to determine the distance between the edge of the third area and the edge of the second area.
- the lamination device can also obtain the third area edge of the image area corresponding to the anode pole piece or the cathode pole piece, and determine the distance between the third area edge and the second area edge, so that the double edge in the target image can be determined.
- the distance between the edge of the separator and the edge of the anode or cathode plate is used to control the production of the battery pole through this distance.
- FIG. 6 is a schematic diagram of the hardware structure of an embodiment of the stacking device provided by this application.
- the laminating device may include a processor 601 and a memory 602 storing computer program instructions.
- the above-mentioned processor 601 may include a central processing unit (Central Processing Unit, CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application. .
- CPU Central Processing Unit
- ASIC Application Specific Integrated Circuit
- Memory 602 may include bulk storage for data or instructions.
- memory 602 may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a Universal Serial Bus (USB) drive or two or more A combination of many of the above.
- memory 602 may include removable or non-removable (or fixed) media, or memory 602 may be non-volatile solid-state memory.
- memory 602 may be internal or external to the battery device.
- memory 602 may be read-only memory (Read Only Memory, ROM).
- ROM Read Only Memory
- the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or both.
- PROM programmable ROM
- EPROM erasable PROM
- EEPROM electrically erasable PROM
- EAROM electrically rewritable ROM
- Memory 602 may include read only memory (ROM), random access memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices.
- ROM read only memory
- RAM random access memory
- magnetic disk storage media devices e.g., magnetic disks
- optical storage media devices e.g., magnetic disks
- flash memory devices e.g., electrical, optical, or other physical/tangible memory storage devices.
- memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or multiple processors) operable to perform the operations described with reference to a method according to an aspect of the present disclosure.
- the processor 601 reads and executes the computer program instructions stored in the memory 602 to implement the method in the embodiment shown in Figure 2 and achieve the corresponding technical effects achieved by executing the method/steps in the example shown in Figure 2. For the purpose of concise description I won’t go into details here.
- the lamination device may also include a communication interface 603 and a bus 604. Among them, as shown in Figure 6, the processor 601, the memory 602, and the communication interface 603 are connected through the bus 604 and complete communication with each other.
- the communication interface 603 is mainly used to implement communication between modules, devices, units and/or equipment in the embodiments of this application.
- Bus 604 includes hardware, software, or both, coupling the components of the online data traffic metering device to each other.
- the bus may include Accelerated Graphics Port (AGP) or other graphics bus, Enhanced Industry Standard Architecture (EISA) bus, Front Side Bus (FSB), Ultra Transmission (Hyper Transport, HT) interconnect, Industry Standard Architecture (ISA) bus, infinite bandwidth interconnect, low pin count (LPC) bus, memory bus, Micro Channel Architecture (MCA) bus, peripheral component interconnect (PCI) bus, PCI-Express (PCI-X) bus, Serial Advanced Technology Attachment (SATA) bus, Video Electronics Standards Association Local (VLB) bus or other suitable bus or two or more of these combination.
- bus 604 may include one or more buses.
- the lamination equipment can perform the separator detection method in the embodiment of the present application, thereby realizing the separator detection method and its device described in conjunction with FIG. 2 .
- embodiments of the present application can provide a computer storage medium for implementation.
- the computer storage medium stores computer program instructions; when the computer program instructions are executed by the processor, any battery and its control method in the above embodiments are implemented.
- the functional blocks shown in the above structural block diagram can be implemented as hardware, software, firmware or a combination thereof.
- it may be, for example, an electronic circuit, an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), appropriate firmware, plug-ins, function cards, etc.
- elements of the application are programs or code segments that are used to perform the required tasks.
- the program or code segments may be stored in a machine-readable medium or transmitted over a transmission medium or communications link via a data signal carried in a carrier wave.
- "Machine-readable medium” may include any medium capable of storing or transmitting information.
- machine-readable media examples include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (Radio Frequency, RF) links, etc. wait.
- Code segments may be downloaded via computer networks such as the Internet, intranets, and the like.
- Such a processor may be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field-programmable logic circuit. It will also be understood that each block in the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can also be implemented by special purpose hardware that performs the specified functions or actions, or can be implemented by special purpose hardware and A combination of computer instructions.
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Abstract
Description
Claims (18)
- 一种隔膜的检测方法,包括:获取待检测极片的目标图像,所述待检测极片包括阳极极片以及分别叠设于所述阳极极片的两侧面的隔膜;对所述目标图像进行图像处理,确定所述目标图像中的目标图像区域;基于所述目标图像区域,对所述待检测极片进行隔膜错位检测。
- 根据权利要求1所述的方法,其特征在于,所述基于所述目标图像区域,对所述待检测极片进行隔膜错位检测,包括:获取所述目标图像区域中的隔膜图像子区域的数量;基于所述目标图像区域中的隔膜图像子区域的数量,确定所述待检测极片的隔膜错位结果,所述隔膜错位结果用于指示所述待检测极片的隔膜是否错位。
- 根据权利要求2所述的方法,其中,所述获取所述目标图像区域中的隔膜图像子区域的数量,包括:对所述目标图像区域进行灰度图像分割处理,得到具有不同灰度的N个隔膜图像子区域,所述N为正整数,其中,所述N为所述目标图像中的隔膜图像子区域的数量。
- 根据权利要求2所述的方法,其中,所述基于所述目标图像区域中的隔膜图像子区域的数量,确定所述待检测极片的隔膜错位结果,包括:在所述目标图像中的隔膜图像子区域的数量为第一预设数量的情况下,确定所述待检测极片的隔膜错位结果为第一子结果,所述第一子结果用于指示所述待检测极片的隔膜未错位;在所述目标图像中的隔膜图像子区域的数量为第二预设数量的情况下,确定所述待检测极片的隔膜错位结果为第二子结果,其中,所述第二预设数量与所述第一预设数量不同,所述第二子结果用于指示所述待检测极片的隔膜错位。
- 根据权利要求2所述的方法,还包括:在所述目标图像中的隔膜图像子区域的数量为第三预设数量的情况下,输出故障提示信息,所述第三预设数量与第一预设数量、第二预设数 量不同。
- 根据权利要求1所述的方法,在所述基于所述目标图像区域,对所述待检测极片进行隔膜错位检测之后,还包括:在检测到所述待检测极片的隔膜错位的情况下,基于所述目标图像区域,确定所述待检测极片中的隔膜的错位量。
- 根据权利要求6所述的方法,其中,所述在检测到所述待检测极片的隔膜错位的情况下,基于所述目标图像区域,确定所述待检测极片中的隔膜的错位量,包括:在检测到所述待检测极片的隔膜错位的情况下,确定所述目标图像的隔膜图像子区域中的单层隔膜区域和双层隔膜区域;对所述单层隔膜区域和所述双层隔膜区域分别进行边缘检测,得到所述单层隔膜区域的第一区域边缘和所述双层隔膜区域的第二区域边缘,所述第二区域边缘与所述第一区域边缘相对应;确定所述第一区域边缘和所述第二区域边缘的间距为所述待检测极片中的隔膜的错位量。
- 根据权利要求7所述的方法,还包括:获取第三区域边缘,所述第三区域边缘为所述目标图像中,与所述阳极极片或者阴极极片对应的图像区域的边缘;所述第三区域边缘与第二区域边缘相对应;确定所述第三区域边缘与所述第二区域边缘的间距。
- 一种隔膜的检测装置,包括:图像获取模块,用于获取待检测极片的目标图像,所述待检测极片包括阳极极片以及分别叠设于所述阳极极片的两侧面的隔膜;图像区域确定模块,用于对所述目标图像进行图像处理,确定所述目标图像中的目标图像区域;错位检测模块,用于基于所述目标图像区域,对所述待检测极片进行隔膜错位检测。
- 根据权利要求9所述的装置,所述错位检测模块,包括:区域数量获取单元,用于获取所述目标图像区域中的隔膜图像子区域的数量;错位结果确定单元,用于基于所述目标图像区域中的隔膜图像子区域的数量,确定所述待检测极片的隔膜错位结果,所述隔膜错位结果用于指示所述待检测极片的隔膜是否错位。
- 根据权利要求10所述的装置,其中,所述区域数量获取单元,具体用于:对所述目标图像区域进行灰度图像分割处理,得到具有不同灰度的N个隔膜图像子区域,所述N为正整数,其中,所述N为所述目标图像中的隔膜图像子区域的数量。
- 根据权利要求10所述的装置,其中,所述错位结果确定单元,包括:第一子结果确定子单元,用于在所述目标图像中的隔膜图像子区域的数量为第一预设数量的情况下,确定所述待检测极片的隔膜错位结果为第一子结果,所述第一子结果用于指示所述待检测极片的隔膜未错位;第二子结果确定子单元,用于在所述目标图像中的隔膜图像子区域的数量为第二预设数量的情况下,确定所述待检测极片的隔膜错位结果为第二子结果,其中,所述第二预设数量与所述第一预设数量不同,所述第二子结果用于指示所述待检测极片的隔膜错位。
- 根据权利要求10所述的装置,还包括:提示信息输出模块,用于在所述目标图像中的隔膜图像子区域的数量为第三预设数量的情况下,输出故障提示信息,所述第三预设数量与第一预设数量、第二预设数量不同。
- 根据权利要求13所述的装置,还包括:错位量确定模块,用于在检测到所述待检测极片的隔膜错位的情况下,基于所述目标图像区域,确定所述待检测极片中的隔膜的错位量。
- 根据权利要求14所述的装置,其中,所述错位量确定模块,包括:隔膜区域确定单元,用于在检测到指示所述待检测极片的隔膜错位的情况下,确定所述目标图像的隔膜图像子区域中的单层隔膜区域和双层隔膜区域;边缘检测单元,用于对所述单层隔膜区域和所述双层隔膜区域分别进行边缘检测,得到所述单层隔膜区域的第一区域边缘和所述双层隔膜区域 的第二区域边缘,所述第二区域边缘与所述第一区域边缘相对应;错位量确定单元,用于确定所述第一区域边缘和所述第二区域边缘的间距为所述待检测极片中的隔膜的错位量。
- 根据权利要求15所述的装置,还包括:边缘获取模块,用于获取第三区域边缘,所述第三区域边缘为所述目标图像中,与所述阳极极片或者阴极极片对应的图像区域的边缘;所述第三区域边缘与第二区域边缘相对应;间距确定模块,用于确定所述第三区域边缘与所述第二区域边缘的间距。
- 一种叠片设备,包括处理器,存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,所述程序或指令被所述处理器执行时实现如权利要求1-8任一项所述的隔膜的检测方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1-8任一项所述的隔膜的检测方法的步骤。
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