Battery cell pole detection method and device, electronic equipment and storage medium

Abstract

The invention discloses a cell pole detection method and device, electronic equipment and a storage medium. The method comprises the following steps: moving a target cell pole to a target detection position, and generating a target trigger signal; triggering a light source and a shooting device according to the target triggering signal, and shooting the target battery cell pole to obtain at least six target images; and fusing the at least six target images to obtain a target fused image, and determining the defect condition of the target cell pole according to the target fused image. According to the method, the target fusion image is established according to the target image, whether the target battery cell pole has the defect or not is determined according to the target fusion image, different colors and different materials of the target battery cell pole can be considered during detection, and the accuracy of defect detection can be improved.

Description

Technical Field

[0001] The present invention relates to the field of defect detection technology, and in particular to a method, device, electronic equipment and storage medium for detecting a battery cell pole. Background Art

[0002] With the rapid development of the new energy industry, especially the increasing demand for new energy electric vehicles, the demand for lithium batteries is also increasing. In recent years, spontaneous combustion of electric vehicle batteries has occurred from time to time, and major manufacturers have become more and more stringent in their requirements for battery quality. During the preparation process of the battery, some surface defects may occur, such as surface scratches, pits, electrolyte contamination, etc. The pole is an especially important part of the battery, and its surface defects may cause safety hazards. Common types of surface defects of the pole include: pits, scratches, electrolyte contamination, incomplete rubber rings, poor welding, etc.

[0003] Most of the existing pole surface defect detection methods use manual visual inspection, where quality inspectors observe various positions of the pole from different lighting directions to subjectively distinguish the degree of defects. Long-term visual inspection will cause eye fatigue, resulting in missed detections and wrong detections. Summary of the invention

[0004] The present invention provides a method and device for detecting a battery cell pole, an electronic device and a storage medium, so as to solve the problem of inaccurate detection of battery cell pole defects.

[0005] According to one aspect of the present invention, a method for detecting a battery cell pole is provided, comprising:

[0006] Move the target battery cell pole to the target detection position and generate a target trigger signal; the target trigger signal is used to control the trigger light source and the shooting device; the target detection position is the position where the optical axis of the shooting device is located;

[0007] The light source and the shooting device are triggered according to the target trigger signal, and the target battery cell pole is photographed to obtain at least six target images; the target images are used to characterize the light and dark characteristics and texture characteristics of the target battery cell pole under different lighting angles and light intensities;

[0008] The at least six target images are fused to obtain a target fused image, and the defect condition of the target battery cell pole is determined according to the target fused image; the target fused image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

[0009] According to another aspect of the present invention, there is provided a battery cell pole detection device, comprising:

[0010] A target trigger signal generating module is used to move the target battery cell pole to the target detection position and generate a target trigger signal; the target trigger signal is used to control the trigger light source and the shooting device; the target detection position is the position where the optical axis of the shooting device is located;

[0011] A target image determination module, used to trigger the light source and the shooting device according to the target trigger signal, and shoot the target battery pole to obtain at least six target images; the target image is used to characterize the light and dark characteristics and texture characteristics of the target battery pole under different lighting angles and light intensities;

[0012] The defect detection module is used to fuse the at least six target images to obtain a target fused image, and determine the defect status of the target battery cell pole according to the target fused image; the target fused image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

[0013] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0014] at least one processor; and

[0015] a memory communicatively connected to the at least one processor; wherein,

[0016] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the battery cell pole detection method described in any embodiment of the present invention.

[0017] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the battery cell pole detection method described in any embodiment of the present invention when executed.

[0018] The technical solution of the embodiment of the present invention moves the target battery pole to the target detection position and generates a target trigger signal; triggers the light source and the shooting device according to the target trigger signal, and shoots the target battery pole to obtain at least six target images, which can obtain images of the target battery pole at different angles and different light intensities, providing a basis for subsequent defect detection; fuses at least six target images to obtain a target fused image, and determines the defect of the target battery pole according to the target fused image. The generation of the target fused image can clearly describe the tiny defects existing in the target battery pole, and the defects are determined according to the target fused image, which can improve the accuracy of defect detection. The method establishes a target fused image according to the target image, determines whether the target battery pole has defects according to the target fused image, and can take into account the different colors and different materials of the target battery pole during detection, while also improving the accuracy of defect detection.

[0019] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 A flow chart of a battery cell pole detection method provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a top metal area of ​​a battery cell pole provided by an embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a black glue area on the top surface of a battery cell pole provided by an embodiment of the present invention;

[0024] Figure 4 A schematic diagram of a yellow glue area on the top surface of a battery cell pole provided by an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a positive electrode column of a battery cell provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of a negative electrode of a battery cell provided by an embodiment of the present invention;

[0027] Figure 7A front plan view of a battery cell pole detection device provided by an embodiment of the present invention;

[0028] Figure 8 A planar side view of a battery cell pole detection device provided in an embodiment of the present invention;

[0029] Fig. 9 A plan view of a battery cell pole detection device provided in an embodiment of the present invention;

[0030] Fig.10 A side view of a battery cell pole detection device provided by an embodiment of the present invention;

[0031] Fig.11 A front view of a battery cell pole detection device provided by an embodiment of the present invention;

[0032] Fig.12 A top view of a battery cell pole detection device provided in an embodiment of the present invention;

[0033] Fig.13 A circuit connection diagram of a battery cell pole detection device provided in an embodiment of the present invention;

[0034] Fig.14 A schematic diagram of a battery cell pole defect provided by an embodiment of the present invention;

[0035] Fig.15 A schematic structural diagram of a battery cell pole detection device provided by an embodiment of the present invention;

[0036] Fig.16 A schematic diagram of the structure of an electronic device for implementing the battery cell pole detection method according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0038] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0039] Figure 1 This is a flow chart of a defect detection module method provided by an embodiment of the present invention. This embodiment is applicable to the case of detecting telecommunication poles. The method can be executed by a defect detection module device. The defect detection module device can be implemented in the form of hardware and / or software. The defect detection module device can be configured in any electronic device with network communication function. Figure 1 As shown, the method includes:

[0040] S110, moving the target battery cell pole to the target detection position, and generating a target trigger signal.

[0041] Among them, the target battery cell pole is the battery cell pole that needs to be inspected for defects.

[0042] Among them, the battery cell pole is usually made of conductive material, and its structure includes a main body part and a connecting part. The main body part is generally columnar, sheet-shaped or other shapes, used to carry current; the connecting part is used to connect with the electrode components (such as pole pieces, pole ears, etc.) inside the battery cell and the external circuit.

[0043] For example, Figure 2 As shown in FIG. 1 , it is the metal area on the top surface of the target battery cell pole; Figure 3 , Figure 4 The figure shows the plastic area on the top surface of the target battery cell pole. Figure 3 The plastic area in the middle generally corresponds to the positive electrode column. Figure 4 The middle plastic area generally corresponds to the negative pole. In actual production, the plastic area corresponding to the positive pole is usually made of black plastic, while the plastic area corresponding to the negative pole is usually made of yellow plastic.

[0044] For example, Figure 5 , Figure 6 The figure shows the side surface of the target battery cell pole. As can be seen from the figure, the side surface is also divided into different colors according to the difference between the positive and negative poles. Generally, black corresponds to the positive pole and yellow corresponds to the negative pole.

[0045] The target trigger signal is used to control the trigger light source and the shooting device. The target detection position is the position of the optical axis of the shooting device.

[0046] Among them, the light sources include: strobe coaxial light sources, strobe dome light sources and strobe ring light sources.

[0047] Among them, the strobe coaxial light source refers to the light direction of the light source being basically consistent with the optical axis direction of the camera lens. The principle is that through a special optical design, the light passes through a series of optical elements such as reflectors and lenses, and then irradiates the target battery cell pole along the same path as the camera's observation direction. The strobe function means that the light source can emit high-intensity light pulses in a short period of time, similar to the flash of some camera devices.

[0048] Furthermore, this coaxial design allows the light to evenly illuminate the surface of the target battery pole, reducing the generation of shadows. When the light is irradiated vertically, it can provide a clearer lighting effect for the details and features of the surface of the target battery pole. The strobe function can provide sufficient light intensity at the moment when high-brightness lighting is required, which can effectively overcome the influence of reflections and enable the camera to clearly capture the features of the target battery pole.

[0049] Among them, the appearance of the flash dome light source is usually a circular dome-shaped structure. The lamp beads inside are generally installed at the bottom of the dome, and there are special diffuse reflectors or coatings inside the dome. When current passes through the lamp beads, the lamp beads emit light, and the light is directed to the diffuse reflectors inside the dome. The diffuse reflectors reflect and scatter the light multiple times, so that the light can be evenly emitted from all directions of the dome, forming a uniform lighting effect similar to a dome. The "flash" function is controlled by a special circuit, which enables the light source to emit high-intensity light pulses in a short period of time to achieve a rapid flashing effect.

[0050] Furthermore, the flash dome light source adopts a dome structure and diffuse reflection design, which can overcome the strong reflection of the highly reflective surface and make the image of the highly reflective surface uniform. In addition, there is a small hole in the middle of the dome light source, which is used for the light transmission of the camera shooting device, resulting in the disadvantage that its luminous surface is not completely hemispherical. By adding a coaxial light source with a semi-transparent and semi-reflective effect at the opening for fill light, the entire hemispherical luminous surface can be made complete, so that there is no dark area in the lighting.

[0051] Among them, the flashing ring light source is usually composed of a ring-shaped light-emitting component, a power supply and control circuit, a shell and other parts. The light-emitting component is generally composed of multiple LED lamp beads arranged in a ring, and these LED lamp beads can emit high-intensity light. When the power is turned on, the current passes through the LED lamp beads, making them glow. The current is adjusted by the control circuit to control the luminous intensity and flashing frequency of the LED lamp beads. In the flashing mode, the control circuit will make the flashing ring light source flash quickly in a short time, producing a strong visual effect.

[0052] The above steps use a flashing ring light source because the 360° side surface of the target battery pole is the detection area, and its narrow and short shape characteristics cause limitations in lighting and shooting. The side surface of the target battery pole is illuminated by a flashing ring light source, and the installation height of the flashing ring light source is adjusted to make the light evenly illuminate the side surface of the entire target battery pole. Considering the large depth of field produced by the circular target battery pole, 4 side shooting devices are used for imaging, and each side shooting device shoots 1 / 4 circle to overcome the imaging blur caused by the large depth of field.

[0053] The photographing device may be a planar array camera. The photographing device includes: a vertical photographing device and a side photographing device, wherein the side photographing device includes: a first side photographing device, a second side photographing device, a third side photographing device and a fourth side photographing device.

[0054] Furthermore, the strobe coaxial light source, the strobe dome light source and the side shooting device are arranged from top to bottom in this order and are placed under the vertical shooting device with the optical axis of the vertical shooting device as the center.

[0055] For example, Figure 7 and Figure 8 As shown, they are a planar front view and a planar side view of the battery pole detection device, respectively. It can be seen from the figure that the battery pole detection device includes: a vertical shooting device 1 for collecting the surface image of the top of the target battery pole 6; a flashing coaxial light source 2, a flashing dome light source 3 and a ring light source 4 for providing light sources of different brightness and different angles for the target battery pole 6; a side shooting device 5 for capturing the side surface image of the target battery pole 6.

[0056] Furthermore, the strobe coaxial light source 2, the strobe dome light source 3 and the strobe ring light source 4 are located on the optical axis of the vertical camera device 1, and the side camera device 5 is arranged on the side. Fig. 9 As shown, it is a plan view of the battery cell pole detection device. It can be seen from the figure that the first side shooting device 51, the second side shooting device 52, the third side shooting device 53 and the fourth side shooting device 54 are evenly distributed around the target battery cell pole at 90°.

[0057] For example, Fig.10 and Fig.11 As shown, it is a 3D side view and a 3D front view of the battery cell pole detection device. It can be seen from the figure that the side camera device 5 is fixed on a slide that can support left and right and front and back adjustments. The slide is fixed on the arc track to support the camera module to slide on the arc track as a whole. The entire arc device is fixed to the upper square plate by a screw. The large plate is provided with slotted holes to support the entire arc structure to move inward and outward, which is used to adjust the position of the side camera device 5. The fixing part of the side camera device 5 also has slots to support adjustment in the height direction.

[0058] Furthermore, the vertical shooting device 1, the strobe coaxial light source 2, the strobe dome light source 3 and the strobe ring light source 4 are all arranged on the square large plate through fixing parts, and can also be adjusted up and down.

[0059] Furthermore, if Fig.12 As shown, it is a three-dimensional top view of the battery cell pole detection device. It can be seen from the figure that the battery cell pole detection device also includes: a 1-to-2 adapter 7 is used to connect the strobe coaxial light source 2, the strobe dome light source 3 and the strobe ring light source 4 to different preset interfaces to realize lighting with high and low brightness, that is, lighting the light source with different preset pulse widths.

[0060] Specifically, a transmission device is used to move the target battery cell pole, and when the target battery cell pole moves to a target detection position, the controller generates a target trigger signal.

[0061] S120, triggering the light source and the photographing device according to the target trigger signal, and photographing the target battery cell pole to obtain at least six target images.

[0062] Among them, the target image is used to characterize the light and dark characteristics and texture characteristics of the target battery cell pole under different lighting angles and light intensities.

[0063] Specifically, a target trigger signal is sent to a programmable strobe controller, which sequentially lights up the light sources according to a preset lighting sequence, and each time the light source is lit, a shooting device is used to shoot the target battery cell pole in a flying shooting manner to obtain at least six target images.

[0064] The at least 6 target images include: at least one first target image, at least four second target images and at least one third target image.

[0065] Furthermore, since the target battery cell pole includes two parts, the positive pole and the negative pole, the above shooting process can only shoot one part of the target battery cell pole each time, so for the entire target battery cell pole, it is necessary to shoot twice according to the above shooting process.

[0066] Among them, the preset lighting order is: strobe coaxial light source + strobe dome light source → strobe ring light source → strobe coaxial light source + strobe dome light source.

[0067] Furthermore, the flashing ring light source is added because after the positive pole of the target battery cell pole is exposed and photographed with the first preset pulse width, there will be a time interval of about 14ms (the frame rate of the high frame rate camera is 74 frames, that is, the time interval between the two shots of the flashing coaxial light source + the flashing dome light source is at least 1 / 74≈14ms) before the target battery cell pole is exposed with the second preset pulse width. Therefore, the shooting of the side of the target battery cell pole is interspersed within this time interval, which can not only make full use of the interval time of the flashing coaxial light source + the flashing dome light source, but also obtain images of different parts of the target battery cell pole, thereby improving the accuracy of defect detection.

[0068] Furthermore, the first lighting of the strobe coaxial light source + strobe dome light source is used to illuminate the top metal area of ​​the positive pole and the top metal area of ​​the negative pole; the strobe ring light source is used to illuminate the black glue area on the side of the positive pole and the yellow glue area on the side of the negative pole; the second lighting of the strobe coaxial light source + strobe dome light source is used to illuminate the black glue area on the top of the positive pole and the yellow glue area on the top of the negative pole.

[0069] Furthermore, the first preset pulse width is used when the strobe coaxial light source + strobe dome light source are lit for the first time, and the second preset pulse width is used when the strobe coaxial light source + strobe dome light source are lit for the second time. The first preset pulse width is lower than the second preset pulse width.

[0070] Furthermore, the two light source controls of the strobe coaxial light source + strobe dome light source and the shooting control of the shooting device need to be completed in a very short time to avoid too long time intervals causing the target battery cell pole to move beyond the imaging field of view. Therefore, a high-speed programmable strobe controller and a high frame rate shooting device are needed to meet the control of light source brightness and multiple shooting in a very short time.

[0071] Furthermore, the connection relationship between the light sources is as follows: Fig.13 As shown, the programmable strobe controller includes: a programmable strobe controller A and a programmable strobe controller B.

[0072] The programmable strobe controller A includes an IN interface, an OUT interface and preset interfaces CH1 to CH8.

[0073] Among them, the IN interface is used to connect the programmable strobe controller A to the P24 line and the N24 line. The N line refers to the neutral line, and the P line refers to the protection line. The relay S2 controls the closing and opening. That is, when the target battery pole moves to the bottom of the imaging station, the PLC controls the relay to close, thereby giving the programmable strobe controller A and the programmable strobe controller B a target trigger signal. The OUT interface is used to control the vertical shooting device. The candidate interfaces CH1 to CH8 are used to control the strobe coaxial light source and the strobe dome light source to light up at different brightness.

[0074] The programmable strobe controller A includes: an IN interface, an OUT interface and a candidate interface CH1. The IN interface is used to connect the programmable strobe controller B to the P24 line and the N24 line, and is also controlled to close and open by the relay S2. The OUT interface is used to control the side camera. The preset interface CH1 is used to control the lighting of the strobe ring light source.

[0075] Among them, flying shooting refers to shooting the moving target battery pole, that is, the target battery pole can move in any direction relative to the shooting device. When the target battery pole moves to the detection position corresponding to the shooting device, that is, the target detection position, the strobing coaxial light source and the strobing dome light source can illuminate the top of the target battery pole, and the strobing ring light source illuminates the side surface of the target battery pole, so as to increase the types of light, so that the difference between defects and non-defects and / or the difference between different defects is more obvious and easier to distinguish. During the shooting process, the target battery pole is always in a moving state.

[0076] The above steps are set with multiple shooting steps because the top surface of the target battery cell pole has both metal area, black glue area and yellow glue area, which have different brightness requirements for lighting. In order to achieve the best and most appropriate lighting brightness, this method can obtain the best imaging effect.

[0077] S130, fusing at least six target images to obtain a target fused image, and determining a defect condition of a target battery cell pole according to the target fused image.

[0078] Among them, the target fusion image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

[0079] Among them, the common surface defect types of the target battery cell poles include: pits, scratches, electrolyte contamination, damaged rubber rings, poor welding, etc.

[0080] For example, Fig.14 The figure shows the defects of the target battery pole. The defect types from left to right in the figure are: pole scratches, pole pits, pole corrosion, pole defect and pole rubber ring defect.

[0081] Specifically, light and dark features and textures are extracted from at least six target images, the acquired light and dark features are fused to obtain a target fused image, and it is judged whether the target battery cell pole has defects based on the target fused image and at least six target images. If defects exist, the type of defects is given synchronously.

[0082] Furthermore, the method for judging defects can be: respectively extracting light and dark features and texture features from the target fusion image and at least six target images, fusing the light and dark features and texture features, and marking them on the target fusion image, and inputting the marked image into the detection model to judge whether there is a defect in the target battery cell pole; the target fusion image and at least six target images can also be directly input into the detection model, and the detection model can be used to judge whether there is a defect in the target battery cell pole; texture features can also be further extracted from at least six target images, and fused with the target fusion image, and the fused image can be input into the detection model to determine whether there is a defect.

[0083] Optionally, triggering the light source and the shooting device according to the target trigger signal, and shooting the target battery cell pole to obtain at least six target images, includes steps A1-A3:

[0084] Step A1, responding to a first trigger signal in the trigger signal, photographing a target battery cell pole by a vertical photographing device to obtain a first target image.

[0085] The first target image is an image of the target battery cell pole under the light of the first preset pulse width.

[0086] Specifically, the programmable strobe controller A responds to the first trigger signal in the trigger signal, triggers the strobe coaxial light source + strobe dome light source to light up with a first preset pulse width, and at the same time controls the vertical shooting device to shoot the target battery cell pole through the vertical shooting device to obtain a first target image.

[0087] Step A2, in response to a second trigger signal in the trigger signal, photographing the target battery cell pole by a side photographing device to obtain a second target image.

[0088] The second target image is an image of the target battery cell pole under uneven light. The triggering of the second trigger signal is later than the triggering of the first trigger signal by a first preset time.

[0089] Specifically, after obtaining the first target image, the programmable strobe controller B responds to the second trigger signal in the trigger signal, triggers the strobe ring light source to light up, and at the same time controls the side shooting device to shoot the target battery cell pole through the side shooting device to obtain the second target image.

[0090] Step A3, responding to the third trigger signal in the trigger signal, photographing the target battery cell pole by a vertical photographing device to obtain a third target image.

[0091] The third target image is an image of the target battery cell pole under the light of the second preset pulse width, where the second preset pulse width is higher than the first preset pulse width.

[0092] Specifically, the programmable strobe controller A responds to the third trigger signal in the trigger signal, triggers the strobe coaxial light source + strobe dome light source to light up with the second preset pulse width, and at the same time controls the vertical shooting device to shoot the target battery cell pole through the vertical shooting device to obtain a third target image.

[0093] Optionally, in response to a first trigger signal in the trigger signal, photographing the target cell pole by a vertical photographing device to obtain a first target image includes steps B1-B2:

[0094] Step B1, in response to a first trigger signal, connecting a first candidate interface combination of a first light-emitting device, and controlling the first light-emitting device to emit light according to a first preset pulse width.

[0095] The first light emitting device is controlled by two control lines, each control line controls to light up half of the light source of the first light emitting device, and the control line is divided into two by a one-to-two method and connected to the preset interface respectively.

[0096] Furthermore, the first light-emitting device is a strobe coaxial light source and a strobe dome light source.

[0097] For example, Fig.13 As shown in the figure, the red line is the one-to-two switching of the control line of the flash coaxial light source. The green line is the one-to-two switching of the control line of the flash dome light source.

[0098] The preset interface can realize the conversion between the first preset pulse width and the second preset pulse width according to the preset combination method.

[0099] Furthermore, the preset interface is Fig.14 CH1 to CH8. The preset interfaces CH1 and CH2 control the strobe coaxial light source to light up with the first preset pulse width; CH3 and CH4 control the strobe dome light source to light up with the first preset pulse width; CH5 and CH6 control the strobe coaxial light source to light up with the second preset pulse width; CH7 and CH8 control the strobe dome light source to light up with the second preset pulse width. Among them, CH1 to CH4 are used as the first candidate interface combination; CH5 to CH8 are used as the second candidate interface combination.

[0100] The first candidate interface combination is used to light up the first light-emitting device according to the first preset pulse width.

[0101] For example, Fig.14 As shown, the first candidate preset interface is CH1, CH2, CH3, and CH4. CH1 and CH2 are used to control the strobe coaxial light source to light up with the first preset pulse width; CH3 and CH4 are used to control the strobe dome light source to light up with the first preset pulse width. The second candidate preset interface is CH5, CH6, CH7, and CH8. CH5 and CH6 control the strobe coaxial light source to light up with the second preset pulse width; CH7 and CH8 control the strobe dome light source to light up with the second preset pulse width.

[0102] Specifically, the programmable strobe controller A responds to the first trigger signal, connects the first candidate interface combination of the first light-emitting device, that is, connects the preset interfaces CH1-CH4, and controls the first light-emitting device to emit light according to the first preset pulse width.

[0103] Step B2: while turning on the first light-emitting device, photograph the target battery cell pole through the vertical photographing device to obtain a first target image.

[0104] Specifically, when the first light-emitting device is turned on, the programmable flash controller A controls the vertical shooting device to shoot the metal area of ​​the target battery cell pole to obtain a first target image.

[0105] Optionally, in response to a second trigger signal in the trigger signal, photographing the target cell pole by a side photographing device to obtain a second target image includes steps C1-C2:

[0106] Step C1, after receiving the trigger signal, start timing, and when the first preset time is reached, respond to the second trigger signal to control the second light-emitting device to emit light.

[0107] Specifically, after receiving the trigger signal, the programmable strobe controller B starts timing, and when the timing time reaches the first preset time, the programmable strobe controller B sends a second trigger signal to control the second light emitting device to emit light.

[0108] Step C2: When the second trigger signal is turned on, the target battery cell pole is photographed by a side photographing device to obtain a second target image.

[0109] While the second light-emitting device is turned on, the programmable flash controller B controls the side shooting device to shoot the side glue area of ​​the target battery cell pole to obtain a second target image.

[0110] Optionally, in response to a third trigger signal in the trigger signal, photographing the target cell pole by a vertical photographing device to obtain a third target image includes steps D1-D2:

[0111] Step D1, after receiving the trigger signal, start timing, and when the second preset time is reached, connect the second candidate interface combination of the first light-emitting device, and control the first light-emitting device to emit light according to the second preset pulse width.

[0112] The second candidate interface combination is used to light up the first light-emitting device according to the second preset pulse width.

[0113] The second preset time is greater than the first preset time.

[0114] Specifically, after receiving the target trigger signal, the programmable flash controller A responds to the first trigger signal and starts timing. When the timing time reaches the second preset time, the second candidate interface combination of the first light-emitting device, that is, the preset interface CH1~CH4 is connected, and the first light-emitting device is controlled to emit light according to the second preset pulse width.

[0115] Step D2: while turning on the first light-emitting device, photograph the target battery cell pole through the vertical photographing device to obtain a third target image.

[0116] Specifically, while the first light-emitting device is turned on, the programmable flash controller A controls the vertical shooting device to shoot the top surface glue area of ​​the target battery cell pole to obtain a third target image.

[0117] Exemplarily, the strobe coaxial light source and the strobe dome light source are controlled by a programmable strobe controller A. Each light source is controlled to light up by two wires at the same time, one wire lights up half of the light source, and two wires are powered on at the same time to light up the entire light source. In order to make a light source have two different brightness controls, a transfer line is connected to the power line of the light source, and after the transfer, they are connected to different preset interfaces of the programmable strobe controller A. For example, after the transfer line is transferred, the strobe coaxial light source is connected to four output preset interfaces of CH1, CH2, CH5, and CH6. Among them, the two preset interfaces of CH1 and CH2 are output together, which can light up the entire light source. Setting CH1 and CH2 to the first preset pulse width output can make the strobe coaxial light source light up with the first preset pulse width, and CH5 and CH6 to the second preset pulse width output can make the strobe coaxial light source light up with the second preset pulse width. Therefore, the lighting of the first preset pulse width and the second preset pulse width of the light source is controlled by different preset interfaces. The parameters output by each preset interface are certain, but by selecting different preset interfaces for output, the brightness can be adjusted.

[0118] Furthermore, the interface components of the adapter cable connected to the power line are set according to actual needs. For example, as described above, if the programmable strobe controller A is required to control the strobe coaxial light source and the strobe dome light source, the adapter cable adopts a 1-to-2 interface; if the programmable strobe controller A is required to control three light sources at the same time, the adapter cable can adopt a 1-to-3 interface.

[0119] Exemplarily, when the positive pole of the target battery cell pole moves to the position directly below the imaging station, the PLC controls the relay to close, thereby giving a target trigger signal to the programmable strobe controller A and the programmable strobe controller B. After receiving the target trigger signal, the programmable strobe controller A responds to the first trigger signal, connects the first candidate interface combination CH1, CH2, CH3, and CH4 for output, thereby controlling the strobe coaxial light source and the strobe dome light source to light up with the first preset pulse width, and at the same time. The programmable strobe controller A will give a shooting signal to the vertical shooting device to light up the light source while taking pictures, and obtain an image with appropriate brightness of the metal area of ​​the positive pole of the target battery cell pole. Among them, the trigger signals given to the programmable strobe controller A and the programmable strobe controller B are simultaneous, but the programmable strobe controller B will set a certain time delay relative to the programmable strobe controller A, and the delay time is exactly the working time required for the low pulse width exposure of the programmable strobe controller A, so as to avoid the programmable strobe controller A and the programmable strobe controller B to perform the exposure process according to the first preset pulse width at the same time, resulting in cross-effects on lighting. After the programmable strobe controller A has finished shooting according to the first preset pulse width, the programmable strobe controller B starts working, controls the strobe ring light source to emit light with the second preset pulse width, and gives a shooting signal to the side shooting devices C2~C5 (four side cameras are connected in parallel and shoot at the same time), so as to obtain an image with appropriate brightness of the black glue area on the side of the positive pole of the target battery cell. After the shooting of the black glue area on the side of the positive pole of the target battery cell is completed, the programmable strobe controller B stops working, and the programmable strobe controller A performs a second lighting according to the second preset pulse width, so as to obtain an image with appropriate brightness of the black glue area on the top surface of the positive pole of the target battery cell. At this point, the image acquisition of the positive pole of the target battery cell has been completed. Furthermore, the negative pole of the target battery cell moves to the bottom of the imaging station, and first the metal area on the top surface of the negative pole of the target battery cell is imaged, followed by the yellow glue area on the side of the negative pole of the target battery cell, and finally the yellow glue area on the top surface of the negative pole of the target battery cell.

[0120] Optionally, at least six target images are fused to obtain a target fused image, and the defect of the target battery cell pole is determined according to the target fused image, including steps E1-E4:

[0121] Step E1, determining light and dark features from the first target image and the third target image.

[0122] Among them, the light and dark features can characterize the light and dark information on the surface of the metal area and the glue area at the top of the target battery cell pole.

[0123] Specifically, the light and dark features are determined according to the light and dark changes of the metal area and the glue area at the top end of the target battery cell pole presented in the first target image and the third target image.

[0124] Step E2: Determine texture features from the second target image.

[0125] Among them, the texture feature is used to characterize the texture changes of the glue area on the side surface of the target battery cell pole.

[0126] Specifically, the texture feature is determined according to the texture change of the glue area on the side surface of the target battery cell pole presented in the second target image.

[0127] Step E3: Fusing the light and dark features with the texture features to obtain a target fused image.

[0128] Specifically, the light and dark features and the texture features are fused to obtain a target fused image.

[0129] Step E4: Determine the defect status of the target battery cell pole according to the target fusion image.

[0130] Specifically, texture features of the target battery cell pole are obtained from the target image, the obtained texture features are fused with the target fusion image, and annotated in the target fusion image and the target image, and the annotated image is input into the detection model for detection, so as to determine whether there are defects in the target battery cell pole.

[0131] Furthermore, the defect detection process also includes: directly inputting the target fusion image and at least six target images into the detection model, and determining whether there is a defect in the target battery cell pole through the detection model.

[0132] The detection models used in the above two detection methods may adopt the same model framework; or may adopt different model frameworks.

[0133] Optionally, determining the defect of the target cell pole according to the target fusion image includes steps F1-F3:

[0134] Step F1, determining reference texture features according to at least six target images.

[0135] Among them, the reference texture features are used to characterize the texture information of the surface and side surface of the target battery cell pole.

[0136] Specifically, the reference texture information is determined according to the texture change of the target battery cell pole surface presented in the target image.

[0137] Step F2: Mark the reference texture information on the target fused image to obtain a reference image.

[0138] Specifically, the reference texture features are overlapped onto the target fusion image and the target image according to their positions on the surface of the target battery cell pole to obtain a reference image.

[0139] Step F3: perform defect detection on the reference image to determine the defect status of the target battery cell pole.

[0140] Specifically, the reference image is input into the detection model for defect detection, and the defect status of the target battery cell pole is determined according to the detection result.

[0141] The technical solution of this embodiment is to move the target battery pole to the target detection position and generate a target trigger signal; trigger the light source and the shooting device according to the target trigger signal, and shoot the target battery pole to obtain at least six target images, which can obtain images of the target battery pole at different angles and different light intensities, providing a basis for subsequent defect detection; fuse at least six target images to obtain a target fused image, and determine the defect of the target battery pole according to the target fused image. The generation of the target fused image can clearly describe the tiny defects existing in the target battery pole, and the defects are determined according to the target fused image, which can improve the accuracy of defect detection. This method establishes a target fused image based on the target image, and determines whether the target battery pole has defects according to the target fused image. It can take into account the different colors and different materials of the target battery pole during detection, and can also improve the accuracy of defect detection.

[0142] Fig.15 The present invention provides a schematic diagram of the structure of a battery pole detection device. This embodiment is applicable to the case of detecting defects in battery poles. The battery pole detection device can be implemented in the form of hardware and / or software. The battery pole detection device can be configured in any electronic device with network communication function. Fig.15 As shown, the device includes: a target trigger signal generating module 210, a target image determining module 220 and a defect detecting module 230, wherein:

[0143] Target trigger signal generating module 210: used to move the target battery cell pole to the target detection position and generate a target trigger signal; the target trigger signal is used to control the trigger light source and the shooting device; the target detection position is the position where the optical axis of the shooting device is located;

[0144] The target image determination module 220 is used to trigger the light source and the shooting device according to the target trigger signal, and shoot the target battery pole to obtain at least six target images; the target image is used to characterize the light and dark characteristics and texture characteristics of the target battery pole under different lighting angles and light intensities;

[0145] Defect detection module: 230 is used to fuse at least six target images to obtain a target fused image, and determine the defect status of the target battery cell pole according to the target fused image; the target fused image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

[0146] Optionally, the target image determination module 220 includes:

[0147] A first target image determination unit: used to respond to a first trigger signal in the trigger signal, photograph the target battery cell pole through a vertical shooting device to obtain a first target image; the first target image is an image of the target battery cell pole under a light of a first preset pulse width;

[0148] A second target image determination unit: used to respond to a second trigger signal in the trigger signal, photograph the target battery cell pole through a side shooting device to obtain a second target image; the second target image is an image of the target battery cell pole under uneven light; the second trigger signal is triggered later than the first trigger signal by a first preset time;

[0149] The third target image determination unit is used to respond to the third trigger signal in the trigger signal, and photograph the target battery cell pole through the vertical shooting device to obtain a third target image; the third target image is the image of the target battery cell pole under the second preset pulse width light; the second preset pulse width is higher than the first preset pulse width.

[0150] Optionally, the first target image determining unit is specifically configured to:

[0151] In response to a first trigger signal, a first candidate interface combination of a first light-emitting device is connected, and the first light-emitting device is controlled to emit light according to a first preset pulse width; the first light-emitting device is controlled by two control lines, each control line controls to light up half of the light source of the first light-emitting device, and the control line is divided into two in a one-to-two manner, and connected to the preset interface respectively; the preset interface can realize the conversion between the first preset pulse width and the second preset pulse width according to the preset combination; the first candidate interface combination is used to light up the first light-emitting device according to the first preset pulse width;

[0152] When the first light-emitting device is turned on, the target battery cell pole is photographed by the vertical shooting device to obtain a first target image.

[0153] Optionally, the second target image determination unit is specifically configured to:

[0154] After receiving the trigger signal, start timing, and when the first preset time is reached, respond to the second trigger signal to control the second light-emitting device to emit light;

[0155] When the second trigger signal is turned on, the target battery cell pole is photographed by the side shooting device to obtain a second target image.

[0156] Optionally, the third target image determination unit is specifically configured to:

[0157] After receiving the trigger signal, start timing, and when the second preset time is reached, connect the second candidate interface combination of the first light-emitting device, and control the first light-emitting device to emit light according to the second preset pulse width; the second candidate interface combination is used to light up the first light-emitting device according to the second preset pulse width; the second preset time is greater than the first preset time;

[0158] While the first light-emitting device is turned on, the target battery cell pole is photographed by the vertical shooting device to obtain a third target image.

[0159] Optionally, the defect detection module 230 includes:

[0160] A light and dark feature determination unit: used to determine light and dark features from the first target image and the third target image; the light and dark features can characterize the light and dark information of the metal area and the glue area on the top of the target battery cell pole;

[0161] Texture feature determination unit: used to determine texture features from the second target image; the texture features are used to characterize the texture changes of the glue area on the side surface of the target battery cell pole;

[0162] Target fusion image determination unit: used for fusing the light and dark features with the texture features to obtain the target fusion image;

[0163] Defect detection unit: used to determine the defect status of the target battery cell pole based on the target fusion image.

[0164] Optional, defect detection unit, including:

[0165] A reference texture feature determination subunit: used to determine reference texture features based on at least six target images; the reference texture features are used to characterize texture information of the surface and side surface of the target battery cell pole;

[0166] Reference image determination subunit: used to mark the reference texture information on the target fusion image to obtain the reference image;

[0167] Defect detection subunit: used to perform defect detection on the reference image and determine the defect conditions of the target battery cell pole.

[0168] The battery cell pole detection device provided in the embodiment of the present invention can execute the battery cell pole detection method provided in any embodiment of the present invention mentioned above, and has the corresponding functions and beneficial effects of executing the battery cell pole detection method. For detailed process, please refer to the relevant operations of the battery cell pole detection method in the above embodiment.

[0169] Fig.16A schematic diagram of the structure of an electronic device for implementing the method for detecting a battery cell pole in an embodiment of the present invention. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or required herein.

[0170] like Fig.16 As shown, the electronic device 10 includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and the processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 to the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0171] A number of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0172] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as a cell pole detection method.

[0173] In some embodiments, the cell pole detection method may be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the cell pole detection method described above may be performed. Alternatively, in other embodiments, the processor 11 may be configured to perform the cell pole detection method in any other appropriate manner (e.g., by means of firmware).

[0174] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0175] Computer programs for implementing the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that when the computer program is executed by the processor, the functions / operations specified in the flow chart and / or block diagram are implemented. The computer program may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0176] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0177] To provide interaction with a user, the systems and techniques described herein may be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices may also be used to provide interaction with the user; for example, the feedback provided to the user may be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user may be received in any form (including acoustic input, voice input, or tactile input).

[0178] The systems and techniques described herein may be implemented in a computing system that includes backend components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes frontend components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0179] A computing system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The client and server relationship is generated by computer programs running on the corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system to solve the defects of difficult management and weak business scalability in traditional physical hosts and VPS services.

[0180] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0181] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for detecting a battery cell pole, characterized in that: include: Move the target battery cell pole to the target detection position and generate a target trigger signal; The target trigger signal is used to control the trigger light source and the shooting device; The target detection position is the position of the optical axis of the shooting device; The light source and the shooting device are triggered according to the target trigger signal, and the target battery cell pole is photographed to obtain at least six target images; the target images are used to characterize the light and dark characteristics and texture characteristics of the target battery cell pole under different lighting angles and light intensities; The at least six target images are fused to obtain a target fused image, and the defect condition of the target battery cell pole is determined according to the target fused image; the target fused image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

2. The method according to claim 1, characterized in that The light source and the photographing device are triggered according to the target trigger signal, and the target battery cell pole is photographed to obtain at least six target images, including: In response to a first trigger signal in the trigger signal, the target cell pole is photographed by a vertical photographing device to obtain a first target image; the first target image is an image of the target cell pole under a light of a first preset pulse width; In response to a second trigger signal in the trigger signal, the target cell pole is photographed by a side shooting device to obtain a second target image; the second target image is an image of the target cell pole under uneven light; the triggering of the second trigger signal is later than the triggering of the first trigger signal by a first preset time; In response to the third trigger signal in the trigger signal, the target battery cell pole is photographed by a vertical shooting device to obtain a third target image; the third target image is an image of the target battery cell pole under a second preset pulse width light; the second preset pulse width is higher than the first preset pulse width.

3. The method according to claim 2, characterized in that The first trigger signal in the response trigger signal is photographed by a vertical photographing device to obtain a first target image, including: In response to a first trigger signal, a first candidate interface combination of a first light-emitting device is connected, and the first light-emitting device is controlled to emit light according to a first preset pulse width; the first light-emitting device is controlled by two control lines, each control line controls to light up half of the light source of the first light-emitting device, and the control line is divided into two in a one-to-two manner, and connected to the preset interface respectively; the preset interface can realize the conversion between the first preset pulse width and the second preset pulse width according to a preset combination; the first candidate interface combination is used to light up the first light-emitting device according to the first preset pulse width; While the first light emitting device is turned on, the target battery cell pole is photographed by a vertical photographing device to obtain a first target image.

4. The method according to claim 2, characterized in that: The second trigger signal in the response trigger signal is used to photograph the target battery cell pole by a side photographing device to obtain a second target image, including: After receiving the trigger signal, start timing, and when the first preset time is reached, respond to the second trigger signal to control the second light-emitting device to emit light; When the second trigger signal is turned on, the target battery cell pole is photographed by a side shooting device to obtain a second target image.

5. The method according to claim 2, characterized in that: The third trigger signal in the response trigger signal is used to photograph the target cell pole by a vertical photographing device to obtain a third target image, including: After receiving the trigger signal, start timing, and when the second preset time is reached, connect the second candidate interface combination of the first light-emitting device, and control the first light-emitting device to emit light according to the second preset pulse width; the second candidate interface combination is used to light up the first light-emitting device according to the second preset pulse width; the second preset time is greater than the first preset time; While the first light emitting device is turned on, the target battery cell pole is photographed by a vertical photographing device to obtain a third target image.

6. The method according to claim 1, characterized in that The step of fusing the at least six target images to obtain a target fused image, and determining the defect of the target battery cell pole according to the target fused image includes: Determine light and dark features from the first target image and the third target image; the light and dark features can represent the light and dark information of the metal area and the glue area on the top of the target battery cell pole; Determining texture features from the second target image; the texture features are used to characterize texture changes in the glue area on the side surface of the target battery cell pole; Fusing the light and dark features with the texture features to obtain a target fused image; Determine the defect condition of the target battery cell pole according to the target fused image.

7. The method according to claim 6, characterized in that The step of determining the defect condition of the target battery cell pole according to the target fusion image includes: Determining reference texture features based on at least six target images; the reference texture features are used to characterize texture information of the surface and side surface of the target battery cell pole; Matching and fusing the target fused image and the reference texture features to obtain a reference image; Defect detection is performed on the reference image to determine the defect status of the target battery cell pole.

8. A battery cell pole detection device, characterized in that: include: A target trigger signal generating module is used to move the target battery cell pole to the target detection position and generate a target trigger signal; The target trigger signal is used to control the trigger light source and the shooting device; the target detection position is the position of the optical axis of the shooting device; A target image determination module, used to trigger the light source and the shooting device according to the target trigger signal, and shoot the target battery pole to obtain at least six target images; the target image is used to characterize the light and dark characteristics and texture characteristics of the target battery pole under different lighting angles and light intensities; The defect detection module is used to fuse the at least six target images to obtain a target fused image, and determine the defect status of the target battery cell pole according to the target fused image; the target fused image can characterize the light and dark changes and texture changes on the surface of different parts of the target battery cell pole.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the battery cell pole detection method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the battery cell pole detection method according to any one of claims 1 to 7 when executed.

Images