CN116359221A - Lithium battery detection method, system, computer equipment and readable storage medium - Google Patents
Lithium battery detection method, system, computer equipment and readable storage medium Download PDFInfo
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Abstract
The application provides a lithium battery detection method, a lithium battery detection system, computer equipment and a readable storage medium, wherein an image acquisition module acquires an image of a positive plate of a target lithium battery to obtain positive plate image data, acquires an image of a negative plate of the target lithium battery to obtain negative plate image data, and acquires a picture of a diaphragm of the target lithium battery to obtain diaphragm image data; the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data; the image detection module judges whether the distances between the positive plate edge and the diaphragm edge in the target image in at least one direction do not exceed a standard distance value, and judges whether the distances between the negative plate edge and the diaphragm edge in the target image in at least one direction do not exceed a standard distance value; if yes, the image detection module marks the state of the target lithium battery as normal. The method is adopted to determine the state of the lithium battery.
Description
Technical Field
The present invention relates to the field of battery manufacturing, and in particular, to a lithium battery detection method, a lithium battery detection system, a computer device, and a readable storage medium.
Background
With the continuous breakthrough and development of battery technology, the composite lamination technology is gradually favored by users and technicians because of the advantages of neat and beautiful appearance, difficult deformation, high energy density, capability of being manufactured into any shape and the like; in the lithium battery structure adopting the composite lamination technology, the diaphragm is one of the key inner layer components, the performance of the diaphragm determines the interface structure, internal resistance and the like of the battery, the characteristics of capacity, circulation, safety performance and the like of the battery are directly influenced, the diaphragm with excellent performance plays an important role in improving the comprehensive performance of the battery, and the diaphragm has the main role of separating the positive electrode plate from the negative electrode plate of the battery and preventing the two electrodes from contacting to short circuit, so that the battery can be normally put into use only when the diaphragm can completely separate the positive electrode plate from the negative electrode plate of the battery.
The inventor found in the study that in the production process of the lithium battery, the diaphragm can not completely separate the positive plate and the negative plate of the battery due to lower precision of production equipment or misoperation of production personnel, and if the battery is directly used for supplying power to the target equipment, the battery is likely to be short-circuited to damage the target equipment, so that in order to avoid the occurrence of the situation, how to determine the state of the lithium battery before the lithium battery is put into use is a problem to be solved urgently.
Disclosure of Invention
In view of the above, the present invention is directed to a method, a system, a computer device and a readable storage medium for detecting a lithium battery, so as to determine the state of the lithium battery.
In a first aspect, an embodiment of the present application provides a lithium battery detection method, which is applied to a lithium battery detection system, where the lithium battery detection system includes an image acquisition module, an image processing module and an image detection module, and the method includes:
the image acquisition module acquires the positive plate image data of the positive plate of the target lithium battery, acquires the negative plate image data of the negative plate of the target lithium battery, and acquires the diaphragm image data of the diaphragm of the target lithium battery;
the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm;
the image detection module judges whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judges whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not;
And if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module marks the state of the target lithium battery as normal.
Optionally, after the image detection module determines whether the distances between the positive electrode sheet edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, and determines whether the distances between the negative electrode sheet edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, the method further includes:
and if the position that the distance between the edge of the positive electrode plate and the edge of the diaphragm exceeds the standard distance value exists or the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, marking the state of the target lithium battery as abnormal by the image detection module.
Optionally, the lithium battery detection system further includes a battery processing module, and after the image detection module determines whether the distances between the positive electrode sheet edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, and determines whether the distances between the negative electrode sheet edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, the method further includes:
If the position that the distance between the edge of the positive plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the positive plate to the battery processing module;
the battery processing module eliminates the positive plate from the target lithium battery according to the position information of the positive plate;
if the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the negative electrode plate to the battery processing module;
and the battery processing module rejects the negative plate from the target lithium battery according to the position information of the negative plate.
Optionally, the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, including:
the image processing module generates pole piece image data according to the pixel information in the positive pole piece image data and the pixel information in the negative pole piece image data;
the image processing module analyzes the pole piece image data to obtain first synchronous control information and first effective image data, and analyzes the diaphragm image data to obtain second synchronous control information and second effective image data, wherein the first synchronous control information comprises a row signal and a field signal in the pole piece image data, the first effective image data is the image content in the pole piece image data, the second synchronous control information comprises a row signal and a field signal in the diaphragm image data, and the second effective image data is the image content in the diaphragm image data;
The image processing module generates the target image according to the first synchronous control information, the first effective image data, the second synchronous control information and the second effective image data.
Optionally, the system further includes an image display module, and after the image detection module marks the state of the target lithium battery as abnormal, the method further includes:
and the image display module responds to an image display instruction sent by a user, and displays the states of the target image and the target lithium battery in a display according to a display mode indicated by the image display instruction.
Optionally, the system further includes an image storage module, and after the image processing module generates a target image according to the positive plate image data, the negative plate image data, and the separator image data, the method further includes:
the image storage module stores the target image into a double-rate synchronous dynamic random access memory.
Optionally, the image processing module and the image detection module are programmable array logic chips.
In a second aspect, an embodiment of the present application provides a lithium battery detection system, where the lithium battery detection system includes an image acquisition module, an image processing module and an image detection module;
The image acquisition module is used for carrying out image acquisition on the positive plate of the target lithium battery to obtain positive plate image data, carrying out image acquisition on the negative plate of the target lithium battery to obtain negative plate image data, and carrying out image acquisition on the diaphragm of the target lithium battery to obtain diaphragm image data;
the image processing module is used for generating a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm;
the image detection module is used for judging whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judging whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not;
and if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module is used for marking the state of the target lithium battery as normal.
Optionally, the image detection module is further configured to, after determining whether the distances between the positive electrode edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, determine whether the distances between the negative electrode edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, mark the state of the target lithium battery as abnormal if there is a direction in which the distance between the positive electrode edge and the separator edge exceeds the standard distance value, or if there is a direction in which the distance between the negative electrode edge and the separator edge exceeds the standard distance value.
Optionally, the lithium battery detection system further includes a battery processing module, where the image detection module determines whether the distance between the edge of the positive electrode sheet and the edge of the diaphragm in the target image in at least one preset direction does not exceed a preset standard distance value, and determines whether the distance between the edge of the negative electrode sheet and the edge of the diaphragm in at least one preset direction does not exceed a preset standard distance value, and if there is a direction in which the distance between the edge of the positive electrode sheet and the edge of the diaphragm exceeds the standard distance value, the image detection module is further configured to send the position information of the positive electrode sheet to the battery processing module;
The battery processing module is used for removing the positive plate from the target lithium battery according to the position information of the positive plate;
if the position of the distance between the edge of the negative plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module is used for sending the position information of the negative plate to the battery processing module;
and the battery processing module is used for removing the negative plate from the target lithium battery according to the position information of the negative plate.
Optionally, the image processing module, when used for generating a target image according to the positive plate image data, the negative plate image data and the separator image data, is specifically used for:
generating pole piece image data according to the pixel information in the positive pole piece image data and the pixel information in the negative pole piece image data;
analyzing the pole piece image data to obtain first synchronous control information and first effective image data, and analyzing the diaphragm image data to obtain second synchronous control information and second effective image data, wherein the first synchronous control information comprises row signals and field signals in the pole piece image data, the first effective image data is the image content in the pole piece image data, the second synchronous control information comprises the row signals and the field signals in the diaphragm image data, and the second effective image data is the image content in the diaphragm image data;
And generating the target image according to the first synchronous control information, the first effective image data, the second synchronous control information and the second effective image data.
Optionally, the system further includes an image display module, where the image display module is configured to respond to an image display instruction sent by a user after the image detection module marks the state of the target lithium battery as abnormal, and display the target image and the state of the target lithium battery in a display according to a display mode indicated by the image display instruction.
Optionally, the system further includes an image storage module, where the image storage module is configured to store the target image in a double-rate synchronous dynamic random access memory after the image processing module generates the target image according to the positive plate image data, the negative plate image data, and the diaphragm image data.
Optionally, the image processing module and the image detection module are programmable array logic chips.
In a third aspect, embodiments of the present application provide a computer device, including: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory communicating over the bus when the computer device is running, the machine-readable instructions when executed by the processor performing the steps of the lithium battery detection method in any of the alternative embodiments of the first aspect described above.
In a fourth aspect, the present embodiments provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the lithium battery detection method in any of the alternative embodiments of the first aspect.
The technical scheme provided by the application comprises the following beneficial effects:
the image acquisition module acquires the positive plate image data of the positive plate of the target lithium battery, acquires the negative plate image data of the negative plate of the target lithium battery, and acquires the diaphragm image data of the diaphragm of the target lithium battery; the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm; through the steps, the target image containing the position and shape information between each pole piece and the diaphragm of the lithium battery can be obtained.
The image detection module judges whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judges whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not; if the distance between the edge of the positive electrode plate and the edge of the diaphragm in the at least one direction does not exceed the standard distance value, and the distance between the edge of the negative electrode plate and the edge of the diaphragm in the at least one direction does not exceed the standard distance value, the image detection module marks the state of the target lithium battery as normal; through the steps, whether the battery state of the target lithium battery is normal can be determined according to the position and shape information between each pole piece and the diaphragm in the target image.
By adopting the method, before the lithium battery is put into use, image data acquisition is carried out on each pole piece and the diaphragm of the lithium battery, then a target image containing position and shape information between the pole piece and the diaphragm is generated according to the image data of each pole piece and the image data of the diaphragm, the positions between the pole piece and the diaphragm in the target image are compared, and the state of the target lithium battery is judged according to the comparison result so as to determine the state of the lithium battery.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a flowchart of a method for detecting a lithium battery according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an image capturing device according to a first embodiment of the present invention;
FIG. 3 is a flowchart of a target image generating method according to a first embodiment of the present invention;
fig. 4 is a schematic structural diagram of a lithium battery detection system according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a second lithium battery detection system according to a second embodiment of the present invention;
fig. 6 is a schematic structural diagram of a third lithium battery detection system according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fourth lithium battery detection system according to a second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a computer device according to a third embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
Example 1
For the convenience of understanding the present application, the following describes the first embodiment of the present application in detail with reference to the flowchart of the first embodiment of the present invention shown in fig. 1.
Referring to fig. 1, fig. 1 shows a flowchart of a lithium battery detection method according to an embodiment of the present invention, where the method is applied to a lithium battery detection system, the lithium battery detection system includes an image acquisition module, an image processing module and an image detection module, and the method includes steps S101 to S104:
s101: the image acquisition module acquires the positive plate image data of the positive plate of the target lithium battery, acquires the negative plate image data of the negative plate of the target lithium battery, and acquires the diaphragm image data of the diaphragm of the target lithium battery.
Specifically, the image acquisition module comprises a linear array camera, wherein the linear array camera is a camera adopting a linear array sensor, when pole piece image data and diaphragm image data are acquired, a row of images are acquired each time, continuous acquisition of the pole piece and/or diaphragm images is realized through relative movement of the pole piece and/or diaphragm and the linear array camera, and then a plurality of rows of images are spliced into a complete image output; the special light source, namely the linear light source, is arranged when the image acquisition is carried out, so that the photographing area of the linear array camera can obtain enough illumination brightness, and the requirements of ensuring uniform brightness on one line of the pole piece and/or the diaphragm composite area and ensuring that the brightness meets the photographing requirement of the linear array camera are met due to the specificity of the photographing area of the linear array camera.
Referring to fig. 2, fig. 2 is a schematic diagram of an image capturing device according to an embodiment of the present invention, wherein, for example, when a pole piece of a target lithium battery is divided into three parts (a first row, a second row and a third row respectively), a camera first starts to move from the leftmost end of the first row to the right, and image capturing is performed in real time during the movement; after the camera completes the image acquisition of the first row, the camera starts to move rightwards from the leftmost end of the second row, and the image acquisition is performed in real time in the moving process; after the camera finishes the image acquisition of the second row, the camera starts to move rightwards from the leftmost end of the third row, and the image acquisition is performed in real time in the moving process; after the camera completes the image acquisition of all parts, a plurality of lines of images are spliced into a complete image to be output.
The linear light source is characterized in that a cylindrical condensing lens is adopted to further condense the high-brightness LED light source into ultrahigh linear light, so that the uniformity and the consistency are good, and the irradiation length can be designed according to the breadth of the pole piece and/or the detection characteristic; in order to avoid that the line formed by the light source at the specified distance is not on the same line with the line to be imaged and photographed by the linear array camera, the linear array camera cannot finish normal photographing, so that the line light source is not adjusted, the line formed by the specified distance photographed by the linear array camera is on the same line with the line to be imaged and photographed by the linear array camera, enough brightness is provided, the line light source is enabled to quickly and accurately adjust the parallelism of the line where the line light source is located and the line where the line is photographed by the linear array camera according to the requirement of the linear array camera, the superposition of the line where the line light source is located and the line where the line is photographed by the linear array camera is realized, the line where the line light source is located is on the same line as the line where the line is photographed by the linear array camera at the specified distance, and the brightness is higher at the specified position.
It is noted that the present application is applicable to non-shaped pole piece batteries, for example, when the pole piece battery is rectangular or square in shape.
S102: the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm.
Specifically, a target image for indicating the positions and shapes of the positive plate, the negative plate and the diaphragm is generated according to the positive plate image data, the negative plate image data and the diaphragm image data acquired by the camera of the linear array camera.
S103: the image detection module judges whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value, and judges whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value.
Specifically, in the production process of the lithium battery, it is required to ensure that the distance between the edge of the electrode sheet and the edge of the diaphragm in at least one preset direction (for example, 8 directions, up, down, left, right, left up, left down, right up and right down) does not exceed a preset standard distance value, otherwise, the battery cannot be charged or discharged normally, so after the target image is obtained, the image detection module determines whether the distance between the edge of the positive electrode sheet and the edge of the diaphragm in at least one preset direction in the target image does not exceed the preset standard distance value, and determines whether the distance between the edge of the negative electrode sheet and the edge of the diaphragm in at least one preset direction in the target image does not exceed the preset standard distance value.
S104: and if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module marks the state of the target lithium battery as normal.
Specifically, when the distance between the edge of the positive electrode plate and the edge of the negative electrode plate of the target lithium battery and the edge of the diaphragm in each direction does not exceed a standard distance value, marking the state of the target lithium battery as normal.
In one possible embodiment, after the image detection module determines whether the distance between the positive electrode sheet edge and the separator edge in the target image in at least one preset direction does not exceed the preset standard distance value, and determines whether the distance between the negative electrode sheet edge and the separator edge in the target image in at least one preset direction does not exceed the preset standard distance value, the method further includes:
and if the position that the distance between the edge of the positive electrode plate and the edge of the diaphragm exceeds the standard distance value exists or the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, marking the state of the target lithium battery as abnormal by the image detection module.
Specifically, if the distance between the edge of the positive electrode plate and the edge of the diaphragm in a certain direction in the target image exceeds a preset standard distance value, or the distance between the edge of the negative electrode plate and the edge of the diaphragm in a certain direction in the target image exceeds a preset standard distance value, marking the state of the target lithium battery as abnormal.
In one possible embodiment, the lithium battery detection system further includes a battery processing module, and after the image detection module determines whether the distance between the positive electrode sheet edge and the separator edge in the target image in at least one preset direction does not exceed a preset standard distance value, and determines whether the distance between the negative electrode sheet edge and the separator edge in the target image in at least one preset direction does not exceed a preset standard distance value, the method further includes:
if the position that the distance between the edge of the positive plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the positive plate to the battery processing module; and the battery processing module rejects the positive plate from the target lithium battery according to the position information of the positive plate.
Specifically, the battery processing module can reject the electrode plate according to the electrode plate information sent by the image detection module, and when the positive electrode plate in the target lithium battery does not meet the requirement, the battery processing module rejects the positive electrode plate.
If the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the negative electrode plate to the battery processing module; and the battery processing module rejects the negative plate from the target lithium battery according to the position information of the negative plate.
Specifically, when the negative electrode plate in the target lithium battery does not meet the requirement, the battery processing module rejects the negative electrode plate.
In a possible implementation manner, referring to fig. 3, fig. 3 shows a flowchart of a target image generating method according to an embodiment of the present invention, in which the image processing module generates a target image according to the positive electrode sheet image data, the negative electrode sheet image data, and the separator image data, and includes steps S301 to S303:
s301: and the image processing module generates pole piece image data according to the pixel information in the positive pole piece image data and the pixel information in the negative pole piece image data.
Specifically, image reconstruction is performed according to the pixel value of each pixel point in the pole piece image data and the pixel value of each pixel point in the diaphragm image data, so as to obtain the pole piece image data.
S302: the image processing module analyzes the pole piece image data to obtain first synchronous control information and first effective image data, and analyzes the diaphragm image data to obtain second synchronous control information and second effective image data, wherein the first synchronous control information comprises row signals and field signals in the pole piece image data, the first effective image data is image content in the pole piece image data, the second synchronous control information comprises row signals and field signals in the diaphragm image data, and the second effective image data is image content in the diaphragm image data.
Specifically, analyzing the acquired pole piece image data to obtain first synchronous control information and first effective image data of the pole piece image data; the FPGA (Field Programmable Gate Array, programmable array logic) chip can acquire and analyze the pole piece source image data transmitted by each camera through an MIPI (Mobile Industry Processor Interface ) input/output port. If there are 4 cameras with the image output system, the pole piece source image data transmitted by each of the 4 cameras can be obtained through the MIPI input/output ports, so as to obtain 4 groups of pole piece source image data, after the 4 groups of pole piece source image data are obtained, the 4 groups of pole piece source image data are analyzed to obtain first synchronization control information and first effective image data of the pole piece image data, wherein the first synchronization control information is control information for indicating row, field signals and the like in the pole piece source image data, and the first effective image data is actual image content obtained by an actual camera (the pole piece image data is composed of the pole piece source image data collected by each camera).
The first synchronization control information of the pole piece image data can be obtained by the following method: capturing a synchronous information field of the pole piece source image data; capturing a data segment of pole piece source image data with a field synchronization information flag bit; capturing a data segment of the pole piece source image data with a line synchronization information flag bit; capturing the image content of all the pole piece source image data, and obtaining first synchronous control information according to the synchronous information field, the data segment with the field synchronous information zone bit and the data segment with the line synchronous information zone bit, wherein the image content of all the pole piece source image data is the first effective image data.
It is noted that the diaphragm source image data of the diaphragm, and the second synchronization control information and the second effective image data can be obtained with reference to the above-described manner.
S303: the image processing module generates the target image according to the first synchronous control information, the first effective image data, the second synchronous control information and the second effective image data.
Specifically, the first synchronization control information, the first effective image data, the second synchronization control information and the second effective image data which are obtained through analysis are subjected to synchronization processing, and the target image is obtained.
In a possible embodiment, the system further includes an image display module, and after the image detection module marks the state of the target lithium battery as abnormal, the method further includes:
and the image display module responds to an image display instruction sent by a user, and displays the states of the target image and the target lithium battery in a display according to a display mode indicated by the image display instruction.
Specifically, a user can send a display instruction through a user side, and an image display module receives the display instruction sent by the user through the user side and analyzes the display instruction to obtain display mode indication information; the display mode instruction information is instruction information for instructing the display mode in which the image output system is to be displayed on the display, selecting the source image of which camera, and the like.
And the image display module responds to an image display instruction sent by a user, converts the target image into a format corresponding to a display and outputs the target image to the display for display.
In one possible embodiment, the system further comprises an image storage module, the method further comprising, after the image processing module generates a target image from the positive plate image data, the negative plate image data, and the separator image data:
The image storage module stores the target image into a double-rate synchronous dynamic random access memory.
In particular, compared with a traditional single Data Rate memory, the DDR (Double Data Rate) memory technology realizes twice read/write operations in one clock cycle, that is, performs one read/write operation on a rising edge and a falling edge of a clock respectively, and has a speed advantage.
In storing the images, the target image may be stored, or each source image that generates the target image may be stored, and each source image is captured and acquired by a different camera.
When each source image of the generated target image is stored, if the display mode indication information is used for indicating processing and displaying the camera 1, the camera 2, the camera 3 and the camera 4, pole piece source image data corresponding to each of the camera 1, the camera 2, the camera 3 and the camera 4 is obtained, and after relevant processing is performed, the pole piece source image data after relevant processing is stored in the memory; meanwhile, after the diaphragm source image data corresponding to the target camera is subjected to correlation processing, the diaphragm source image data subjected to correlation processing is stored into the DDR memory.
In one possible implementation, the image processing module and the image detection module are programmable array logic chips.
Specifically, based on the characteristics of the FPGA chip, the number of the DDR controller modules can be dynamically adjusted, so that the design has good expansibility, a user can dynamically configure the number of the DDR controller modules, and further the accessed off-chip DDR memory is dynamically configured through the DDR controller modules, so that the purposes of functions of the off-chip DDR memory and dynamic data matching are achieved, and the user is helped to rapidly apply the DDR memory.
Example two
Referring to fig. 4, fig. 4 is a schematic structural diagram of a lithium battery detection system according to a second embodiment of the present invention, where the lithium battery detection system includes an image acquisition module 401, an image processing module 402 and an image detection module 403;
the image acquisition module is used for carrying out image acquisition on the positive plate of the target lithium battery to obtain positive plate image data, carrying out image acquisition on the negative plate of the target lithium battery to obtain negative plate image data, and carrying out image acquisition on the diaphragm of the target lithium battery to obtain diaphragm image data;
the image processing module is used for generating a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm;
The image detection module is used for judging whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judging whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not;
and if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module is used for marking the state of the target lithium battery as normal.
In a possible implementation manner, the image detection module is further configured to, after determining whether the distances between the positive electrode edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, and determining whether the distances between the negative electrode edge and the separator edge in the target image in at least one preset direction do not exceed a preset standard distance value, mark the state of the target lithium battery as abnormal if there is a direction in which the distances between the positive electrode edge and the separator edge exceed the standard distance value, or if there is a direction in which the distances between the negative electrode edge and the separator edge exceed the standard distance value.
In a possible implementation manner, referring to fig. 5, fig. 5 shows a schematic structural diagram of a second lithium battery detection system provided by the second embodiment of the present invention, where the lithium battery detection system further includes a battery processing module 501, and the image detection module is further configured to determine, if there is an azimuth in which the distance between the positive electrode sheet edge and the separator edge in the target image exceeds the standard distance value, whether the distance between the negative electrode sheet edge and the separator edge in the target image does not exceed the standard distance value, send the position information of the positive electrode sheet to the battery processing module;
the battery processing module is used for removing the positive plate from the target lithium battery according to the position information of the positive plate;
if the position of the distance between the edge of the negative plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module is used for sending the position information of the negative plate to the battery processing module;
And the battery processing module is used for removing the negative plate from the target lithium battery according to the position information of the negative plate.
In a possible embodiment, the image processing module, when used for generating a target image from the positive electrode sheet image data, the negative electrode sheet image data and the separator image data, is specifically used for:
generating pole piece image data according to the pixel information in the positive pole piece image data and the pixel information in the negative pole piece image data;
analyzing the pole piece image data to obtain first synchronous control information and first effective image data, and analyzing the diaphragm image data to obtain second synchronous control information and second effective image data, wherein the first synchronous control information comprises row signals and field signals in the pole piece image data, the first effective image data is the image content in the pole piece image data, the second synchronous control information comprises the row signals and the field signals in the diaphragm image data, and the second effective image data is the image content in the diaphragm image data;
and generating the target image according to the first synchronous control information, the first effective image data, the second synchronous control information and the second effective image data.
In a possible implementation manner, referring to fig. 6, fig. 6 shows a schematic structural diagram of a third lithium battery detection system provided by a second embodiment of the present invention, where the system further includes an image display module 601, configured to respond to an image display instruction sent by a user after the image detection module marks the state of the target lithium battery as abnormal, and display the target image and the state of the target lithium battery in a display according to a display manner indicated by the image display instruction.
In a possible implementation manner, referring to fig. 7, fig. 7 shows a schematic structural diagram of a fourth lithium battery detection system according to a second embodiment of the present invention, where the system further includes an image storage module 701, where the image storage module is configured to store a target image into a double rate synchronous dynamic random access memory after the image processing module generates the target image according to the positive electrode sheet image data, the negative electrode sheet image data, and the separator image data.
In one possible implementation, the image processing module and the image detection module are programmable array logic chips.
Example III
Based on the same application concept, referring to fig. 8, fig. 8 shows a schematic structural diagram of a computer device provided in a third embodiment of the present invention, where, as shown in fig. 8, a computer device 800 provided in the third embodiment of the present invention includes:
the processor 801, the memory 802 and the bus 803, the memory 802 stores machine readable instructions executable by the processor 801, when the computer device 800 is running, the processor 801 communicates with the memory 802 through the bus 803, and the machine readable instructions are executed by the processor 801 to perform the steps of the lithium battery detection method described in the first embodiment.
Example IV
Based on the same application concept, the embodiment of the present application further provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor performs the steps of the lithium battery detection method according to any one of the above embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, specific working procedures of the above-described system and apparatus may refer to corresponding procedures in the foregoing method embodiments, which are not described herein again.
The computer program product for lithium battery detection provided by the embodiment of the invention comprises a computer readable storage medium storing program codes, and the instructions included in the program codes can be used for executing the method in the previous method embodiment, and specific implementation can be referred to the method embodiment and will not be repeated here.
The lithium battery detection system provided by the embodiment of the invention can be specific hardware on equipment or software or firmware installed on the equipment. The system provided by the embodiment of the present invention has the same implementation principle and technical effects as those of the foregoing method embodiment, and for the sake of brevity, reference may be made to the corresponding content in the foregoing method embodiment where the system embodiment is not mentioned. It will be clear to those skilled in the art that, for convenience and brevity, the specific operation of the system, apparatus and unit described above may refer to the corresponding process in the above method embodiment, which is not described in detail herein.
In the embodiments provided herein, it should be understood that the disclosed systems and methods may be implemented in other ways. The system embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions in actual implementation, and e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments provided in the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method of the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that: like reference numerals and letters in the following figures denote like items, and thus once an item is defined in one figure, no further definition or explanation of it is required in the following figures, and furthermore, the terms "first," "second," "third," etc. are used merely to distinguish one description from another and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present invention for illustrating the technical solution of the present invention, but not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the foregoing examples, it will be understood by those skilled in the art that the present invention is not limited thereto: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the corresponding technical solutions. Are intended to be encompassed within the scope of the present invention. Therefore, the protection scope of the invention is subject to the protection scope of the claims.
Claims (10)
1. The lithium battery detection method is characterized by being applied to a lithium battery detection system, wherein the lithium battery detection system comprises an image acquisition module, an image processing module and an image detection module, and the method comprises the following steps:
the image acquisition module acquires the positive plate image data of the positive plate of the target lithium battery, acquires the negative plate image data of the negative plate of the target lithium battery, and acquires the diaphragm image data of the diaphragm of the target lithium battery;
the image processing module generates a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm;
the image detection module judges whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judges whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not;
And if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module marks the state of the target lithium battery as normal.
2. The method of claim 1, wherein after the image detection module determines whether the distance between the positive electrode sheet edge and the separator edge in the target image in the preset at least one direction does not exceed the preset standard distance value, and determines whether the distance between the negative electrode sheet edge and the separator edge in the target image in the preset at least one direction does not exceed the preset standard distance value, the method further comprises:
and if the position that the distance between the edge of the positive electrode plate and the edge of the diaphragm exceeds the standard distance value exists or the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, marking the state of the target lithium battery as abnormal by the image detection module.
3. The method of claim 1, wherein the lithium battery detection system further comprises a battery processing module, wherein after the image detection module determines whether the distance between the positive electrode sheet edge and the separator edge in the target image in the preset at least one direction does not exceed a preset standard distance value, and determines whether the distance between the negative electrode sheet edge and the separator edge in the target image in the preset at least one direction does not exceed a preset standard distance value, the method further comprises:
If the position that the distance between the edge of the positive plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the positive plate to the battery processing module;
the battery processing module eliminates the positive plate from the target lithium battery according to the position information of the positive plate;
if the position that the distance between the edge of the negative electrode plate and the edge of the diaphragm exceeds the standard distance value exists, the image detection module sends the position information of the negative electrode plate to the battery processing module;
and the battery processing module rejects the negative plate from the target lithium battery according to the position information of the negative plate.
4. The method of claim 1, wherein the image processing module generating a target image from the positive plate image data, the negative plate image data, and the separator image data comprises:
the image processing module generates pole piece image data according to the pixel information in the positive pole piece image data and the pixel information in the negative pole piece image data;
the image processing module analyzes the pole piece image data to obtain first synchronous control information and first effective image data, and analyzes the diaphragm image data to obtain second synchronous control information and second effective image data, wherein the first synchronous control information comprises a row signal and a field signal in the pole piece image data, the first effective image data is the image content in the pole piece image data, the second synchronous control information comprises a row signal and a field signal in the diaphragm image data, and the second effective image data is the image content in the diaphragm image data;
The image processing module generates the target image according to the first synchronous control information, the first effective image data, the second synchronous control information and the second effective image data.
5. The method of claim 2, wherein the system further comprises an image display module, and wherein after the image detection module marks the state of the target lithium battery as abnormal, the method further comprises:
and the image display module responds to an image display instruction sent by a user, and displays the states of the target image and the target lithium battery in a display according to a display mode indicated by the image display instruction.
6. The method of claim 1, wherein the system further comprises an image storage module, the method further comprising, after the image processing module generates a target image from the positive patch image data, the negative patch image data, and the separator image data:
the image storage module stores the target image into a double-rate synchronous dynamic random access memory.
7. The method of claim 1, wherein the image processing module and the image detection module are programmable array logic chips.
8. The lithium battery detection system is characterized by comprising an image acquisition module, an image processing module and an image detection module;
the image acquisition module is used for carrying out image acquisition on the positive plate of the target lithium battery to obtain positive plate image data, carrying out image acquisition on the negative plate of the target lithium battery to obtain negative plate image data, and carrying out image acquisition on the diaphragm of the target lithium battery to obtain diaphragm image data;
the image processing module is used for generating a target image according to the positive plate image data, the negative plate image data and the diaphragm image data, wherein the target image is used for indicating the positions and the shapes of the positive plate, the negative plate and the diaphragm;
the image detection module is used for judging whether the distances between the edge of the positive electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not, and judging whether the distances between the edge of the negative electrode plate and the edge of the diaphragm in the target image in at least one preset direction are not more than a preset standard distance value or not;
and if the distances between the edge of the positive electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, and the distances between the edge of the negative electrode plate and the edge of the diaphragm in at least one direction do not exceed the standard distance value, the image detection module is used for marking the state of the target lithium battery as normal.
9. A computer device, comprising: a processor, a memory and a bus, the memory storing machine-readable instructions executable by the processor, the processor and the memory in communication via the bus when the computer device is running, the machine-readable instructions when executed by the processor performing the steps of the lithium battery 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 has stored thereon a computer program which, when executed by a processor, performs the steps of the lithium battery detection method according to any one of claims 1 to 7.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112053326A (en) * | 2020-08-13 | 2020-12-08 | 无锡先导智能装备股份有限公司 | Method, system, device and equipment for detecting alignment degree of battery cell |
| CN116609493A (en) * | 2023-07-21 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
| CN117704968A (en) * | 2024-02-06 | 2024-03-15 | 钛玛科（北京）工业科技有限公司 | Lithium battery winding OverHang detection method and system based on image projection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053326A (en) * | 2020-08-13 | 2020-12-08 | 无锡先导智能装备股份有限公司 | Method, system, device and equipment for detecting alignment degree of battery cell |
| CN112053326B (en) * | 2020-08-13 | 2023-12-08 | 无锡先导智能装备股份有限公司 | Method, system, device and equipment for detecting alignment degree of battery cells |
| CN116609493A (en) * | 2023-07-21 | 2023-08-18 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
| CN116609493B (en) * | 2023-07-21 | 2023-09-22 | 宁德时代新能源科技股份有限公司 | Indentation detection method, laminated cell manufacturing method and device and electronic equipment |
| CN117704968A (en) * | 2024-02-06 | 2024-03-15 | 钛玛科（北京）工业科技有限公司 | Lithium battery winding OverHang detection method and system based on image projection |
| CN117704968B (en) * | 2024-02-06 | 2024-05-14 | 钛玛科（北京）工业科技有限公司 | Lithium battery winding OverHang detection method and system based on image projection |
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