CN114113120A - Method, system, equipment and medium for detecting damage to bottom of battery pack - Google Patents
Method, system, equipment and medium for detecting damage to bottom of battery pack Download PDFInfo
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- CN114113120A CN114113120A CN202111473564.3A CN202111473564A CN114113120A CN 114113120 A CN114113120 A CN 114113120A CN 202111473564 A CN202111473564 A CN 202111473564A CN 114113120 A CN114113120 A CN 114113120A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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Abstract
The invention discloses a method, a system, equipment and a medium for detecting damage of the bottom of a battery pack, wherein the method comprises the following steps: before the battery pack with the power shortage is unloaded from the vehicle and enters the battery replacement station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack; comparing the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station; and/or receiving a second photographing instruction before the fully charged battery pack leaves the battery changing station to be loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack; and comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded. When the battery pack is put into or taken out of the power change station, whether the battery pack is damaged or not is detected, and disputes between operators and users of the power change station are avoided.
Description
Technical Field
The embodiment of the invention relates to the technical field of battery pack detection, in particular to a method, a system, equipment and a medium for detecting damage to the bottom of a battery pack.
Background
With the rapid development of new energy automobiles, the power exchanging station has gradually become a common new energy supply mode. And at present, a plurality of automobile manufacturers adopt a scheme of battery leasing, so that the cost of purchasing the automobile by the user is reduced, and the unified management of the battery pack is facilitated. However, when the battery pack is replaced in the power exchange station, if the battery pack is damaged, it cannot be known whether the battery pack is damaged due to the fact that a user scratches the bottom of a vehicle battery or foreign matter splashes to the bottom of the battery in the running process of the vehicle or the battery pack is damaged in the power exchange station, that is, it is unclear whether the damage occurs before the battery pack enters the power exchange station or after the battery pack enters the power exchange station, so that dispute is easily caused between a power exchange station operator and the user.
Disclosure of Invention
The invention provides a method, a system, equipment and a medium for detecting damage of the bottom of a battery pack, which are used for detecting whether the battery pack is damaged or not when the battery pack is transported out of a power change station, and avoiding disputes between operators and users of the power change station.
In order to achieve the above object, an embodiment of a first aspect of the present invention provides a method for detecting damage to a bottom of a battery pack, including the following steps:
before a battery pack with insufficient power is unloaded from a vehicle and enters a power conversion station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack;
comparing the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station;
and/or receiving a second photographing instruction before the fully charged battery pack leaves the battery changing station to be loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack;
and comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory.
According to an embodiment of the present invention, before acquiring the first image of the bottom of the battery pack, the method further includes:
and receiving a cleaning instruction to control a cleaning device to clean the bottom of the battery pack according to the cleaning instruction.
According to an embodiment of the present invention, the comparing the first image with the calibration image to determine whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacing station includes:
comparing the first image with the calibration image, judging that the battery pack is damaged when the first image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the first image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the first image to a database.
According to an embodiment of the present invention, when the first image is inconsistent with the calibration image, the method further includes:
screening out a first inconsistent area of the first image and the calibration image; and meanwhile, receiving a first laser detection instruction to control a laser detection device to detect the flatness of the first inconsistent area according to the first laser detection instruction so as to judge whether the battery pack is damaged when being unloaded from the vehicle and enters the battery replacement station.
According to one embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the first image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
According to an embodiment of the present invention, the comparing the second image with the calibration image to determine whether the battery pack is damaged before leaving the battery replacement station to be loaded includes:
comparing the second image with the calibration image, judging that the battery pack is damaged when the second image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the second image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the second image to a database.
According to an embodiment of the present invention, when the second image is inconsistent with the calibration image, the method further includes:
screening out a second inconsistent area between the second image and the calibration image;
and meanwhile, receiving a second laser detection instruction to control a laser detection device to detect the flatness of the second inconsistent area according to the second laser detection instruction so as to judge whether the battery pack is damaged before leaving the battery changing station to be loaded.
According to an embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the second image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and sending out a warning signal.
In order to achieve the above object, a second embodiment of the present invention provides a system for detecting damage to a bottom of a battery pack, including:
the first image acquisition module is used for receiving a first photographing instruction before a battery pack with power shortage is unloaded from a vehicle and enters a battery replacement station, so as to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquire a first image of the bottom of the battery pack;
the first comparison judgment module is used for comparing the first image with the calibration image so as to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station;
and/or, comprising: the second image acquisition module is used for receiving a second photographing instruction before the battery pack leaves the battery changing station and is loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquire a second image of the bottom of the battery pack;
and the second comparison judgment module is used for comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory.
According to one embodiment of the invention, the system further comprises:
and the cleaning module is used for receiving a cleaning instruction so as to control a cleaning device to clean the bottom of the battery pack according to the cleaning instruction.
According to an embodiment of the present invention, the first comparison determining module is configured to compare the first image with the calibration image, determine that the battery pack is damaged when the first image is inconsistent with the calibration image, and control the warning module to send a warning signal;
and when the first image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the first image to a database.
According to one embodiment of the invention, the system further comprises:
the screening unit is used for screening out a first inconsistent area of the first image and the calibration image when the first image is inconsistent with the calibration image;
and the flatness detection unit is used for receiving a first laser detection instruction so as to control a laser detection device to perform flatness detection on the first inconsistent area according to the first laser detection instruction, so as to judge whether the battery pack is damaged when being unloaded from the vehicle and enters the battery replacement station.
According to one embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the first image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
According to an embodiment of the present invention, the second comparison and judgment module is configured to compare the second image with the calibration image, judge that the battery pack is damaged when the second image is inconsistent with the calibration image, and control the warning module to send a warning signal;
and when the second image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the second image to a database.
According to an embodiment of the present invention, the screening unit is further configured to screen out a second inconsistent area between the second image and the calibration image when the second image is inconsistent with the calibration image;
the flatness detection unit is further used for receiving a second laser detection instruction to control a laser detection device to perform flatness detection on the second inconsistent area according to the second laser detection instruction so as to judge whether the battery pack is damaged before leaving the battery changing station to be loaded.
According to an embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the second image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
In order to achieve the above object, a third aspect of the present invention provides an electronic device for detecting damage to a bottom of a battery pack, the electronic device including:
one or more processors;
storage means for storing one or more programs;
when the one or more programs are executed by the one or more processors, the one or more processors implement the method for detecting damage to the bottom of a battery pack as described above.
To achieve the above object, a fourth aspect of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for detecting bottom damage of a battery pack as described above.
According to the detection method, the detection system, the detection equipment and the detection medium of the damage of the bottom of the battery pack, the method comprises the following steps: before a battery pack with insufficient power is unloaded from a vehicle and enters a power conversion station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack; comparing the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station; and/or receiving a second photographing instruction before the fully charged battery pack leaves the battery changing station to be loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack; and comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory. Therefore, when the battery pack is put in and out of the power change station, whether the battery pack is damaged or not is detected, and disputes between operators and users of the power change station are avoided.
Drawings
Fig. 1 is a flowchart of a method for detecting damage to the bottom of a battery pack according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for detecting damage to the bottom of a battery pack according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for detecting damage to the bottom of a battery pack according to another embodiment of the present invention;
fig. 4 is a block diagram of a system for detecting damage to the bottom of a battery pack according to an embodiment of the present invention;
fig. 5 is a block diagram of an electronic device for detecting damage to the bottom of a battery pack according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a flowchart of a method for detecting damage to the bottom of a battery pack according to an embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:
s101, before a battery pack with power shortage is unloaded from a vehicle and enters a battery replacement station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack;
when the battery pack in the vehicle of the user is low in electric quantity, the user can select a nearby battery replacement station to replace the battery pack, and before the replaced battery pack is detached from the vehicle and enters the battery replacement station, the bottom of the battery pack needs to be photographed. At this moment, a controller in a system for detecting damage to the bottom of the battery pack in the battery replacement station can receive a first photographing instruction input by the station control platform to control the camera to photograph the bottom of the battery pack according to the first photographing instruction, so that the controller can acquire a first image of the bottom of the battery pack.
It should be noted that the camera in the above technical solution may be a CCD camera or a CMOS camera, or other cameras in the field, and the present invention is not limited in this respect.
It can be understood that, because the area of the bottom of the battery pack is large, the field angle of the camera is limited, and then the camera can be used for photographing the bottom part area of the battery pack, and finally the acquired multiple images are fused to form the first image of the bottom of the battery pack. The method is convenient to operate, and the acquired image is higher in resolution and clearer. In addition, after the first image of the bottom of the battery pack is acquired, the controller also receives a photographing closing instruction so as to control the camera to stop photographing the bottom of the battery pack according to the photographing closing instruction.
S102, comparing the first image with a calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering a battery replacement station;
it is understood that the calibration image is an image of the bottom of the battery pack when it is shipped.
According to an embodiment of the present invention, the comparing the first image with the calibration image to determine whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacing station includes:
comparing the first image with the calibration image, judging that the battery pack is damaged when the first image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the first image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the first image to a database.
That is to say, after the first image is obtained, the first image and the calibration image can be compared, for example, after key points are located, the first image and the calibration image are scanned one by one, when the brightness, the chromaticity and the like of pixel points in the first image are different from the brightness and the chromaticity of the same pixel points in the calibration image, it is judged that the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station, and meanwhile, the warning module is controlled to send out a warning signal; on the contrary, if the brightness, the chromaticity and the like of the pixel points in the first image are consistent with the brightness and the chromaticity of the same pixel points in the calibration image, the battery pack is judged not to be damaged before being unloaded from the vehicle and entering the battery replacement station, and the first image is uploaded to the database. It can be understood that when the battery pack is unloaded from the vehicle and enters the power change station, the controller reports the state of no damage to the database, and similarly, when the battery pack is unloaded from the vehicle and enters the power change station, the controller reports the state of damage to the database.
Based on the method, before the battery pack is unloaded from the vehicle and enters the battery changing station, whether the battery pack is damaged or not can be known, so that disputes between a user and an operator of the battery changing station can be avoided, and if the battery pack is damaged before entering the battery changing station, the user can be reminded to maintain.
And/or S103, before the fully charged battery pack leaves the battery changing station and is loaded, receiving a second photographing instruction to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack;
similarly, before the battery pack is fully charged and the ionization power switching station is loaded, that is, when the battery pack is replaced according to the requirement of a user, the bottom of the battery pack needs to be photographed. At this moment, a controller in the system for detecting damage to the bottom of the battery pack in the battery replacement station can receive a second photographing instruction input by the station control platform to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, so that the controller can acquire a second image of the bottom of the battery pack.
In addition, after the second image of the bottom of the battery pack is acquired, the controller also receives a photographing closing instruction so as to control the camera to stop photographing the bottom of the battery pack according to the photographing closing instruction.
The camera may be the same as a camera that takes a picture when the battery pack enters the battery replacement station, and the mode of acquiring the second image may refer to the mode of acquiring the first image, which is not described herein again.
And S104, comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory.
According to an embodiment of the present invention, the comparing the second image with the calibration image to determine whether the battery pack is damaged before leaving the battery replacement station to be loaded includes:
comparing the second image with the calibration image, judging that the battery pack is damaged when the second image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the second image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the second image to a database.
After the second image is obtained, the second image can be compared with the calibration image, for example, after key points are positioned, pixels are scanned one by one, when the brightness, the chromaticity and the like of pixel points in the second image are inconsistent with the brightness and the chromaticity of the same pixel points in the calibration image, it is judged that the battery pack is damaged in the battery replacement station, and the warning module is controlled to send a warning signal; on the contrary, if the brightness, the chromaticity and the like of the pixel points in the second image are consistent with the brightness and the chromaticity of the same pixel points in the calibration image, the battery pack is judged not to be damaged in the battery replacement station, and the second image is uploaded to the database. It can be understood that when the battery pack is fully charged and is not damaged before being loaded, the controller reports the state of no damage to the database, and similarly, when the battery pack is fully charged and is damaged before being loaded, the controller reports the state of damage to the database.
Based on this, before the battery pack is loaded in a fully charged car, whether the battery pack is damaged or not can be known, so that dispute between a user and a power station changing operator is avoided, if the battery pack is damaged when leaving the power station changing, the damage of the battery pack in the charging process of the power station changing can be indicated, at the moment, the operator can be reminded to maintain, the damaged battery pack is prevented from being replaced for the user, or the damaged battery pack is directly replaced.
Therefore, whether the battery pack is replaced by the user or the battery pack is replaced by the battery replacement station, whether the battery pack is damaged or not can be monitored in the process, so that liability can be easily paid, and disputes between the user and an operator of the battery replacement station can be avoided.
According to an embodiment of the present invention, as shown in fig. 2, before acquiring the first image of the bottom of the battery pack at S101, the method further includes:
and S100, receiving a cleaning instruction to control a cleaning device to clean the bottom of the battery pack according to the cleaning instruction.
It is understood that the battery pack is easily contaminated by dust and the like during use, and thus the battery pack detached from the vehicle needs to be cleaned. Wherein, in S100 cleaning device can be high-pressure squirt, promptly, dismantle the back with the battery package, earlier through high-pressure squirt with battery package surface cleaning clean, later shoot battery package bottom again, avoid foreign matter such as dust or earth of battery package bottom to influence the quality of image. And after the cleaning of the battery pack is finished, the controller also receives a cleaning closing instruction so as to control the cleaning device to stop cleaning the bottom of the battery pack according to the cleaning closing instruction.
According to an embodiment of the present invention, when the first image is inconsistent with the calibration image, the method further includes:
screening out a first inconsistent area of the first image and the calibration image;
the first inconsistent area can be an area formed by pixel points with different brightness and chroma in the first image and the calibration image.
And meanwhile, receiving a first laser detection instruction to control a laser detection device to detect the flatness of the first inconsistent area according to the first laser detection instruction so as to judge whether the battery pack is damaged when being unloaded from the vehicle and enters the battery replacement station.
According to one embodiment of the invention, when the flatness is less than or equal to a preset flatness, the battery pack is not damaged, and the first image is uploaded to a database;
and when the flatness is greater than the preset flatness, the battery pack is damaged, and the warning module is controlled to send out a warning signal.
After screening out first inconsistent region, can carry out the plane degree through laser detection device to first inconsistent region and detect to avoid causing the erroneous judgement because of factors such as dirty or falling lacquer, can detect out whether there is unusual arch or sunken battery package bottom through the plane degree detection, further increased the degree of accuracy that detects. After the laser detection is carried out on the first inconsistent area, the controller also receives a laser closing detection instruction so as to control the laser detection device to stop detecting the flatness of the first inconsistent area according to the laser closing detection instruction.
If abnormal bulges or depressions exist at the bottom of the battery pack, namely the flatness is greater than the preset flatness, the abnormal conditions of scratch or damage and the like exist at the bottom of the battery pack, and the battery pack needs to be maintained or replaced. If the bottom of the battery pack is not provided with abnormal bulges or depressions, namely the flatness is less than or equal to the preset flatness, the battery is in good condition, and then the detection result can be uploaded to a database for storage.
According to an embodiment of the present invention, when the second image is inconsistent with the calibration image, the method further includes:
screening out a second inconsistent area between the second image and the calibration image;
the second inconsistent area can be an area formed by pixel points with different brightness and chroma in the second image and the calibration image.
And meanwhile, receiving a second laser detection instruction to control a laser detection device to detect the flatness of the second inconsistent area according to the second laser detection instruction so as to judge whether the battery pack is damaged before leaving the battery changing station to be loaded.
According to an embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the second image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and sending out a warning signal.
After screening out the inconsistent region of second, can carry out the plane degree through laser detection device to the inconsistent region of second and detect to avoid causing the erroneous judgement because of factors such as dirty or falling lacquer, whether there is unusual arch or sunken the bottom of can detecting out the battery package through the plane degree detection, further increased the degree of accuracy that detects. After the second inconsistent area is subjected to laser detection, the controller also receives a laser closing detection instruction so as to control the laser detection device to stop flatness detection of the second inconsistent area according to the laser closing detection instruction.
If abnormal bulges or depressions exist at the bottom of the battery pack, namely the flatness is greater than the preset flatness, the abnormal conditions of scratch or damage and the like exist at the bottom of the battery pack, and the battery pack needs to be maintained or replaced. If the bottom of the battery pack is not provided with abnormal bulges or depressions, namely the flatness is less than or equal to the preset flatness, the battery is in good condition, and then the detection result can be uploaded to a database for storage.
Fig. 3 is a flowchart of a method for detecting damage to the bottom of a battery pack according to yet another embodiment of the invention. As shown in fig. 3, the method comprises the steps of:
initially, the battery is put into a bin (namely when the battery is unloaded from the vehicle and enters a battery replacement station due to power shortage);
s201, cleaning the bottom of the battery;
s202, detecting a camera;
s203, detecting whether the abnormal condition exists; if yes, executing step S204, if no, executing step S207;
s204, laser detection;
s205, detecting whether the abnormal condition exists; if yes, executing step S206, if no, executing step S207;
s206, human intervention is carried out;
and S207, uploading data and ending.
Alternatively, when the battery is taken out of the storage (i.e., when the battery is fully charged and leaves the battery replacement station), the process proceeds to step S207 from step S202.
Fig. 4 is a block diagram of a system for detecting damage to the bottom of a battery pack according to an embodiment of the present invention. As shown in fig. 4, the system includes:
the first image acquisition module 101 is configured to receive a first photographing instruction before a battery pack with a power shortage is unloaded from a vehicle and enters a battery replacement station, so as to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquire a first image of the bottom of the battery pack;
when the battery pack in the vehicle of the user is low in electric quantity, the user can select a nearby battery replacement station to replace the battery pack, and before the replaced battery pack is detached from the vehicle and enters the battery replacement station, the bottom of the battery pack needs to be photographed. At this moment, a controller in a system for detecting damage to the bottom of the battery pack in the battery replacement station can receive a first photographing instruction input by the station control platform to control the camera to photograph the bottom of the battery pack according to the first photographing instruction, so that the controller can acquire a first image of the bottom of the battery pack.
It should be noted that the camera in the above technical solution may be a CCD camera or a CMOS camera, or other cameras in the field, and the present invention is not limited in this respect.
It can be understood that, because the area of the bottom of the battery pack is large, the field angle of the camera is limited, and then the camera can be used for photographing the bottom part area of the battery pack, and finally the acquired multiple images are fused to form the first image of the bottom of the battery pack. The method is convenient to operate, and the acquired image is higher in resolution and clearer. In addition, after the first image of the bottom of the battery pack is acquired, the controller also receives a photographing closing instruction so as to control the camera to stop photographing the bottom of the battery pack according to the photographing closing instruction.
The first comparison judgment module 102 is configured to compare the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station;
it is understood that the calibration image is an image of the bottom of the battery pack when it is shipped.
According to an embodiment of the present invention, the first comparison and determination module 102 is configured to compare the first image with the calibration image, determine that the battery pack is damaged when the first image is inconsistent with the calibration image, and control the warning module to send a warning signal;
and when the first image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the first image to a database.
That is to say, after the first image is obtained, the first image and the calibration image can be compared, for example, after key points are located, the first image and the calibration image are scanned one by one, when the brightness, the chromaticity and the like of pixel points in the first image are different from the brightness and the chromaticity of the same pixel points in the calibration image, it is judged that the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station, and meanwhile, the warning module is controlled to send out a warning signal; on the contrary, if the brightness, the chromaticity and the like of the pixel points in the first image are consistent with the brightness and the chromaticity of the same pixel points in the calibration image, the battery pack is judged not to be damaged before being unloaded from the vehicle and entering the battery replacement station, and the first image is uploaded to the database. It can be understood that when the battery pack is unloaded from the vehicle and enters the power change station, the controller reports the state of no damage to the database, and similarly, when the battery pack is unloaded from the vehicle and enters the power change station, the controller reports the state of damage to the database.
Based on the method, before the battery pack is unloaded from the vehicle and enters the battery changing station, whether the battery pack is damaged or not can be known, so that disputes between a user and an operator of the battery changing station can be avoided, and if the battery pack is damaged before entering the battery changing station, the user can be reminded to maintain.
And/or the second image acquisition module 103 is configured to receive a second photographing instruction before the battery pack leaves the battery replacement station and is loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquire a second image of the bottom of the battery pack;
similarly, before the battery pack is fully charged and the ionization power switching station is loaded, that is, when the battery pack is replaced according to the requirement of a user, the bottom of the battery pack needs to be photographed. At this moment, a controller in the system for detecting damage to the bottom of the battery pack in the battery replacement station can receive a second photographing instruction input by the station control platform to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, so that the controller can acquire a second image of the bottom of the battery pack.
In addition, after the second image of the bottom of the battery pack is acquired, the controller also receives a photographing closing instruction so as to control the camera to stop photographing the bottom of the battery pack according to the photographing closing instruction.
The camera may be the same as a camera that takes a picture when the battery pack enters the battery replacement station, and the mode of acquiring the second image may refer to the mode of acquiring the first image, which is not described herein again.
A second comparison and judgment module 104, configured to compare the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station and being loaded, where the calibration image is an image of the bottom of the battery pack when the battery pack leaves a factory.
According to an embodiment of the present invention, the second comparison determining module 104 is configured to compare the second image with the calibration image, determine that the battery pack is damaged when the second image is inconsistent with the calibration image, and control the warning module to send a warning signal;
and when the second image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the second image to a database.
After the second image is obtained, the second image can be compared with the calibration image, for example, after key points are positioned, pixels are scanned one by one, when the brightness, the chromaticity and the like of pixel points in the second image are inconsistent with the brightness and the chromaticity of the same pixel points in the calibration image, it is judged that the battery pack is damaged in the battery replacement station, and the warning module is controlled to send a warning signal; on the contrary, if the brightness, the chromaticity and the like of the pixel points in the second image are consistent with the brightness and the chromaticity of the same pixel points in the calibration image, the battery pack is judged not to be damaged in the battery replacement station, and the second image is uploaded to the database. It can be understood that when the battery pack is fully charged and is not damaged before being loaded, the controller reports the state of no damage to the database, and similarly, when the battery pack is fully charged and is damaged before being loaded, the controller reports the state of damage to the database.
Based on this, before the battery pack is loaded in a fully charged car, whether the battery pack is damaged or not can be known, so that dispute between a user and a power station changing operator is avoided, if the battery pack is damaged when leaving the power station changing, the damage of the battery pack in the charging process of the power station changing can be indicated, at the moment, the operator can be reminded to maintain, the damaged battery pack is prevented from being replaced for the user, or the damaged battery pack is directly replaced.
Therefore, whether the battery pack is replaced by the user or the battery pack is replaced by the battery replacement station, whether the battery pack is damaged or not can be monitored in the process, so that liability can be easily paid, and disputes between the user and an operator of the battery replacement station can be avoided.
According to one embodiment of the invention, the system further comprises:
and the cleaning module is used for receiving a cleaning instruction so as to control a cleaning device to clean the bottom of the battery pack according to the cleaning instruction.
It is understood that the battery pack is easily contaminated by dust and the like during use, and thus the battery pack detached from the vehicle needs to be cleaned. Wherein, cleaning device can be high-pressure squirt, promptly, dismantles the back with the battery package, and earlier through high-pressure squirt with battery package clean surface, later shoot the battery package bottom again, avoid foreign matter such as dust or earth of battery package bottom to influence the quality of image. And after the cleaning of the battery pack is finished, the controller also receives a cleaning closing instruction so as to control the cleaning device to stop cleaning the bottom of the battery pack according to the cleaning closing instruction.
According to one embodiment of the invention, the system further comprises:
the screening unit is used for screening out a first inconsistent area of the first image and the calibration image when the first image is inconsistent with the calibration image;
and the flatness detection unit is used for receiving a first laser detection instruction so as to control a laser detection device to perform flatness detection on the first inconsistent area according to the first laser detection instruction, so as to judge whether the battery pack is damaged when being unloaded from the vehicle and enters the battery replacement station.
According to one embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the first image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
The first inconsistent area can be an area formed by pixel points with different brightness and chroma in the first image and the calibration image.
After screening out first inconsistent region, can carry out the plane degree through laser detection device to first inconsistent region and detect to avoid causing the erroneous judgement because of factors such as dirty or falling lacquer, can detect out whether there is unusual arch or sunken battery package bottom through the plane degree detection, further increased the degree of accuracy that detects. After the laser detection is carried out on the first inconsistent area, the controller also receives a laser closing detection instruction so as to control the laser detection device to stop detecting the flatness of the first inconsistent area according to the laser closing detection instruction.
If abnormal bulges or depressions exist at the bottom of the battery pack, namely the flatness is greater than the preset flatness, the abnormal conditions of scratch or damage and the like exist at the bottom of the battery pack, and the battery pack needs to be maintained or replaced. If the bottom of the battery pack is not provided with abnormal bulges or depressions, namely the flatness is less than or equal to the preset flatness, the battery is in good condition, and then the detection result can be uploaded to a database for storage.
According to an embodiment of the present invention, the screening unit is further configured to screen out a second inconsistent area between the second image and the calibration image when the second image is inconsistent with the calibration image;
the second inconsistent area can be an area formed by pixel points with different brightness and chroma in the second image and the calibration image.
The flatness detection unit is further used for receiving a second laser detection instruction to control a laser detection device to perform flatness detection on the second inconsistent area according to the second laser detection instruction so as to judge whether the battery pack is damaged before leaving the battery changing station to be loaded.
According to an embodiment of the invention, when the flatness is less than or equal to a preset flatness, judging that the battery pack is not damaged, and uploading the second image to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and sending out a warning signal.
After screening out the inconsistent region of second, can carry out the plane degree through laser detection device to the inconsistent region of second and detect to avoid causing the erroneous judgement because of factors such as dirty or falling lacquer, whether there is unusual arch or sunken the bottom of can detecting out the battery package through the plane degree detection, further increased the degree of accuracy that detects. After the second inconsistent area is subjected to laser detection, the controller also receives a laser closing detection instruction so as to control the laser detection device to stop flatness detection of the second inconsistent area according to the laser closing detection instruction.
If abnormal bulges or depressions exist at the bottom of the battery pack, namely the flatness is greater than the preset flatness, the abnormal conditions of scratch or damage and the like exist at the bottom of the battery pack, and the battery pack needs to be maintained or replaced. If the bottom of the battery pack is not provided with abnormal bulges or depressions, namely the flatness is less than or equal to the preset flatness, the battery is in good condition, and then the detection result can be uploaded to a database for storage.
Therefore, detection and image recording are carried out when the battery pack is taken out of the warehouse, the integrity of the battery pack replaced by the battery replacing station for the user is proved, detection and image recording are carried out when the battery pack is taken into the warehouse, the integrity of the battery pack detached from the vehicle of the user is proved, dispute between the user and a manufacturer is avoided, and the problem of authority responsibility of damage of the battery pack of the battery replacing station is solved. Meanwhile, the bottom of the battery pack is detected, so that the damaged battery pack can be maintained or replaced in advance, and potential safety hazards caused by damage of the battery pack are avoided.
Fig. 5 is a block diagram of an electronic device for detecting damage to the bottom of a battery pack according to an embodiment of the present invention. As shown in fig. 5, the electronic device 400 includes:
one or more processors 401;
a storage 402 for storing one or more programs;
when executed by the one or more processors 401, the one or more programs cause the one or more processors 401 to implement the method for detecting bottom damage of a battery pack as described above.
As shown in fig. 5, the electronic device 400 includes a processor 401, a storage device 402, an input device 403, and an output device 404; the number of the processors 401 in the device may be one or more, and one processor 401 is taken as an example in fig. 5; the processor 401, the storage means 402, the input means 403 and the output means 404 in the device may be connected by a bus or other means, as exemplified by a bus in fig. 5.
The storage device 402 is a computer-readable storage medium, and can be used to store software programs, computer-executable programs, and modules, such as program instructions corresponding to the method for detecting damage to the bottom of a battery pack in the embodiment of the present invention. The processor 401 executes various functional applications and data processing of the device by running software programs, instructions and modules stored in the storage device 402, that is, the method for detecting damage to the bottom of the battery pack is implemented.
The storage device 402 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal, and the like. Further, the storage 402 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 402 may further include memory located remotely from the processor 401, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 403 is operable to receive an inputted instruction request and generate key signal inputs related to device settings and function control. The output device 404 may include a display device such as a display screen.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by the processor 401, implements the method for detecting damage to the bottom of a battery pack as described above.
That is to say, the storage medium provided by the embodiment of the present invention contains computer-executable instructions, where the computer-executable instructions can perform related operations in the method for detecting damage to the bottom of a battery pack provided by any embodiment of the present invention.
From the above description of the embodiments, it is obvious for those skilled in the art that the present invention can be implemented by software and necessary general hardware, and certainly, can also be implemented by hardware, but the former is a better embodiment in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as a floppy disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a FLASH Memory (FLASH), a hard disk or an optical disk of a computer, and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.
In summary, according to the method, the system, the device and the medium for detecting the damage to the bottom of the battery pack provided by the embodiments of the present invention, the method includes the following steps: before a battery pack with insufficient power is unloaded from a vehicle and enters a power conversion station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack; comparing the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station; and/or receiving a second photographing instruction before the fully charged battery pack leaves the battery changing station to be loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack; and comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory. Therefore, when the battery pack is put in and out of the power change station, whether the battery pack is damaged or not is detected, and disputes between operators and users of the power change station are avoided.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (11)
1. A method for detecting damage to the bottom of a battery pack is characterized by comprising the following steps:
before a battery pack with insufficient power is unloaded from a vehicle and enters a power conversion station, receiving a first photographing instruction to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquiring a first image of the bottom of the battery pack;
comparing the first image with the calibration image to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station;
and/or receiving a second photographing instruction before the fully charged battery pack leaves the battery changing station to be loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquiring a second image of the bottom of the battery pack;
and comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory.
2. The method for detecting damage to the bottom of a battery pack according to claim 1, further comprising, before acquiring the first image of the bottom of the battery pack:
and receiving a cleaning instruction to control a cleaning device to clean the bottom of the battery pack according to the cleaning instruction.
3. The method for detecting damage to the bottom of a battery pack according to claim 1, wherein the comparing the first image with the calibration image to determine whether damage occurs before the battery pack is unloaded from the vehicle and enters the battery replacement station comprises:
comparing the first image with the calibration image, judging that the battery pack is damaged when the first image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the first image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the first image to a database.
4. The method for detecting damage to the bottom of a battery pack according to claim 3, wherein when the first image is inconsistent with the calibration image, the method further comprises:
screening out a first inconsistent area of the first image and the calibration image;
and meanwhile, receiving a first laser detection instruction to control a laser detection device to detect the flatness of the first inconsistent area according to the first laser detection instruction so as to judge whether the battery pack is damaged when being unloaded from the vehicle and enters the battery replacement station.
5. The method for detecting damage to the bottom of a battery pack according to claim 4, wherein when the flatness is less than or equal to a preset flatness, it is determined that the battery pack is not damaged, and the first image is uploaded to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
6. The method for detecting damage to the bottom of a battery pack according to claim 1, wherein the comparing the second image with the calibration image to determine whether damage occurs to the battery pack before the battery pack leaves a battery replacement station and is loaded into the battery replacement station comprises:
comparing the second image with the calibration image, judging that the battery pack is damaged when the second image is inconsistent with the calibration image, and controlling a warning module to send a warning signal;
and when the second image is consistent with the calibration image, judging that the battery pack is not damaged, and uploading the second image to a database.
7. The method for detecting damage to the bottom of a battery pack according to claim 6, wherein when the second image is inconsistent with the calibration image, the method further comprises:
screening out a second inconsistent area between the second image and the calibration image;
and meanwhile, receiving a second laser detection instruction to control a laser detection device to detect the flatness of the second inconsistent area according to the second laser detection instruction so as to judge whether the battery pack is damaged before leaving the battery changing station to be loaded.
8. The method for detecting damage to the bottom of a battery pack according to claim 7, wherein when the flatness is less than or equal to a preset flatness, it is determined that the battery pack is not damaged, and the second image is uploaded to a database;
and when the flatness is greater than the preset flatness, judging that the battery pack is damaged, and controlling a warning module to send a warning signal.
9. A system for detecting damage to the bottom of a battery pack, comprising:
the first image acquisition module is used for receiving a first photographing instruction before a battery pack with power shortage is unloaded from a vehicle and enters a battery replacement station, so as to control a camera to photograph the bottom of the battery pack according to the first photographing instruction, and acquire a first image of the bottom of the battery pack;
the first comparison judgment module is used for comparing the first image with the calibration image so as to judge whether the battery pack is damaged before being unloaded from the vehicle and entering the battery replacement station;
and/or, comprising: the second image acquisition module is used for receiving a second photographing instruction before the battery pack leaves the battery changing station and is loaded, so as to control the camera to photograph the bottom of the battery pack according to the second photographing instruction, and acquire a second image of the bottom of the battery pack;
and the second comparison judgment module is used for comparing the second image with the calibration image to judge whether the battery pack is damaged before leaving the battery replacement station to be loaded, wherein the calibration image is an image of the bottom of the battery pack when leaving a factory.
10. An electronic device for detecting damage to a bottom of a battery pack, the electronic device comprising:
one or more processors;
storage means for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the method of detecting bottom damage of a battery pack of any of claims 1-8.
11. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the method for detecting bottom damage of a battery pack according to any one of claims 1 to 8.
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| CN202111473564.3A CN114113120A (en) | 2021-11-29 | 2021-11-29 | Method, system, equipment and medium for detecting damage to bottom of battery pack |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116148289A (en) * | 2023-04-20 | 2023-05-23 | 宁德时代新能源科技股份有限公司 | Battery defect detection method and system and computer readable storage medium |
| CN116500058A (en) * | 2023-06-28 | 2023-07-28 | 信丰云创(深圳)信息有限公司 | Display screen detection system and display screen detection method |
| EP4243155A1 (en) * | 2022-03-07 | 2023-09-13 | Nio Technology (Anhui) Co., Ltd | Battery swap abnormality detection method, system, computer-readable storage medium, and battery swap station |
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2021
- 2021-11-29 CN CN202111473564.3A patent/CN114113120A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4243155A1 (en) * | 2022-03-07 | 2023-09-13 | Nio Technology (Anhui) Co., Ltd | Battery swap abnormality detection method, system, computer-readable storage medium, and battery swap station |
| CN116148289A (en) * | 2023-04-20 | 2023-05-23 | 宁德时代新能源科技股份有限公司 | Battery defect detection method and system and computer readable storage medium |
| CN116148289B (en) * | 2023-04-20 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | Battery defect detection method and system and computer readable storage medium |
| CN116500058A (en) * | 2023-06-28 | 2023-07-28 | 信丰云创(深圳)信息有限公司 | Display screen detection system and display screen detection method |
| CN116500058B (en) * | 2023-06-28 | 2024-03-19 | 信丰云创(深圳)信息有限公司 | Display screen detection system and display screen detection method |
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