CN115060320B - Online monitoring and analyzing system for production quality of power lithium battery based on machine vision - Google Patents
Online monitoring and analyzing system for production quality of power lithium battery based on machine vision Download PDFInfo
- Publication number
- CN115060320B CN115060320B CN202210697646.4A CN202210697646A CN115060320B CN 115060320 B CN115060320 B CN 115060320B CN 202210697646 A CN202210697646 A CN 202210697646A CN 115060320 B CN115060320 B CN 115060320B
- Authority
- CN
- China
- Prior art keywords
- lithium battery
- charging
- finished lithium
- finished
- charging interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 332
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 332
- 238000012544 monitoring process Methods 0.000 title claims abstract description 137
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 50
- 230000007547 defect Effects 0.000 claims description 57
- 238000004364 calculation method Methods 0.000 claims description 34
- 238000011895 specific detection Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 abstract description 29
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000009295 sperm incapacitation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
- G06T7/001—Industrial image inspection using an image reference approach
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
Abstract
The invention discloses a machine vision-based online monitoring and analyzing system for the production quality of a power lithium battery. On one hand, the monitoring of multiple dimensions of the finished lithium battery is realized, the comprehensive production quality of the finished lithium battery can be effectively embodied, the judgment limitation caused by judging whether the production is qualified or not on one side by means of the apparent quality monitoring result in the prior art is overcome, and the detection accuracy and the quality supervision level of the finished lithium battery are greatly improved. On the other hand, the workload of the detection personnel is effectively reduced, the body load of the detection personnel is greatly lightened, and the manual detection cost is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of power lithium battery production quality monitoring, and particularly relates to a machine vision-based power lithium battery production quality online monitoring analysis system.
Background
Along with the continuous development of science and technology and economy, the application range of the lithium battery is wider and wider, and the lithium battery is widely applied to a plurality of manufacturing fields such as electronic products, new energy technologies and the like, and the demand of society for the lithium battery is in a continuous expansion trend, so that the production quality of the lithium battery is also required to be higher. In this case, monitoring of the production quality of lithium batteries is particularly important.
In recent years, the production quality of lithium batteries is monitored by adopting a traditional manual checking mode, so that not only is extremely high working pressure brought to detection personnel, but also the problems of incapacitation of monitoring, low working efficiency and the like possibly exist, and meanwhile, the detection dimension of finished lithium batteries is single, and the detection dimension is particularly shown in the following aspects:
(1) By adopting the traditional manual checking mode, on one hand, the inspector faces huge production quality detection workload of the finished lithium battery every day, and feeds back the detection result, so that great load is brought to the body, and on the other hand, the manual detection cost is increased;
(2) From the prior art, quality detection of the finished lithium battery is mostly focused on apparent quality of the finished lithium battery, such as defects in size and appearance, and performance detection of the finished lithium battery is less focused, so that detection of the finished lithium battery is too one-sided, comprehensive production quality of the finished lithium battery cannot be represented, and detection accuracy and quality supervision level of the finished lithium battery are low.
Disclosure of Invention
In order to overcome the defects in the background technology, the embodiment of the invention provides an online monitoring and analyzing system for the production quality of a power lithium battery based on machine vision, which can effectively solve the problems related to the background technology.
The aim of the invention can be achieved by the following technical scheme:
the invention provides a machine vision-based online monitoring and analyzing system for the production quality of a power lithium battery, which comprises an apparent quality monitoring module, a charging interface quality monitoring module, a charging performance quality monitoring module, a database, a comprehensive production quality analyzing module and a display terminal, wherein the apparent quality monitoring module is connected with the charging interface quality monitoring module;
the comprehensive production quality analysis module is respectively connected with the apparent quality monitoring module, the charging interface quality monitoring module, the charging performance quality monitoring module, the database and the display terminal;
the apparent mass monitoring module is used for monitoring the apparent mass of the finished lithium battery, wherein the apparent mass monitoring module comprises a size mass monitoring unit, a weight mass monitoring unit and an appearance mass monitoring unit;
the charging interface quality monitoring module is used for monitoring the quality of a charging interface of the finished lithium battery, wherein the charging interface quality monitoring module comprises a charging interface position quality monitoring unit, a charging interface size quality monitoring unit and a charging interface appearance quality monitoring unit;
the charging performance quality monitoring module is used for monitoring the charging performance quality of the finished lithium battery, wherein the charging performance quality monitoring module comprises a charging electrical quality monitoring unit and a charging temperature quality monitoring unit;
the database is used for storing standard size parameters, standard weight, standard three-dimensional appearance images, a finished product appearance defect allowed area, standard charging interface position three-dimensional coordinates, standard charging interface size specification parameters, standard charging interface three-dimensional appearance images, charging interface appearance defect allowed areas, standard charging voltages at each charging time point, standard charging current and standard charging electric quantity corresponding to the model of the finished product lithium battery, and storing standard charging temperature change curves;
the comprehensive production quality analysis module is used for evaluating the comprehensive production quality coefficient of the finished lithium battery based on the apparent quality monitoring result, the charging interface quality monitoring result and the charging performance quality monitoring result of the finished lithium battery;
the display terminal is used for displaying the comprehensive production quality coefficient of the finished lithium battery.
As a preferred solution, the size quality monitoring unit is used for quality detection of the external dimensions of the finished lithium battery, and the specific detection process comprises the following steps:
a1, detecting size parameters of a finished lithium battery, wherein the size parameters comprise length, width and height;
a2, comparing the size parameter of the finished lithium battery with the standard size parameter corresponding to the model of the finished lithium battery in the database, and calculating the outline size conformity corresponding to the finished lithium battery, wherein the calculation formula is as follows:lambda is expressed as the corresponding outline dimension compliance of the finished lithium battery, l 0 、w 0 And h 0 Respectively representing the standard length, standard width and standard height corresponding to the model of the finished lithium battery, and l, w and h respectively representing the length, width and height of the finished lithium battery.
As a preferred scheme, the weight quality monitoring unit is used for detecting the quality of the weight of the finished lithium battery, and the specific detection comprises the following steps:
b1, detecting the weight of a finished lithium battery;
b2, comparing the weight of the finished lithium battery with the standard weight corresponding to the model of the finished lithium battery in the database, and calculating the weight-quality conformity corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein beta is expressed as the weight and quality conformity corresponding to the finished lithium battery, and k 0 The standard weight is expressed as the standard weight corresponding to the model of the finished lithium battery, and k is expressed as the weight of the finished lithium battery.
As a preferred solution, the appearance quality monitoring unit is used for detecting the appearance aspect of the finished lithium battery, and the specific detection comprises the following steps:
c1, acquiring three-dimensional appearance images of a finished lithium battery through a high-definition camera;
c2, comparing the three-dimensional appearance image of the finished lithium battery with a standard three-dimensional appearance image corresponding to the model of the finished lithium battery in a database, judging whether the finished lithium battery has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the finished lithium battery;
and C3, comparing the appearance defect area of the finished lithium battery with the preset appearance defect allowable area of the finished lithium battery in a database, and calculating the appearance quality conformity of the finished lithium battery, wherein the calculation formula is as follows:wherein delta is expressed as the appearance quality conformity of the finished lithium battery, s 0 And s is the appearance defect area of the finished lithium battery.
As a preferred solution, the charging interface position quality monitoring unit is configured to perform quality detection on a charging interface position of a lithium battery, where the specific detection includes the following steps:
d1, establishing a three-dimensional coordinate system of a finished lithium battery;
d2, positioning three-dimensional coordinates of the charging interface position from the three-dimensional appearance image of the finished lithium battery based on the established three-dimensional coordinate system;
and D3, comparing the three-dimensional coordinates of the charging interface position of the finished lithium battery with the three-dimensional coordinates of the standard charging interface position corresponding to the model of the finished lithium battery in the database, and calculating the setting conformity of the charging interface position corresponding to the finished lithium battery, wherein the calculation formula is as follows:mu represents the charging interface position setting conformity degree of the finished lithium battery, and x 0 、y 0 And z 0 And the three-dimensional coordinate values of the charging interface positions of the finished lithium battery on the x axis, the y axis and the z axis are respectively represented as the three-dimensional coordinate values of the standard charging interface positions of the finished lithium battery on the x axis, the y axis and the z axis corresponding to the model of the finished lithium battery.
As a preferred solution, the charging interface size and quality monitoring unit is used for quality detection of the charging interface size specification of the finished lithium battery, and the specific detection comprises the following steps:
e1, detecting size specification parameters of a charging interface of a finished lithium battery, wherein the size parameters comprise diameter and protrusion height;
and E2, comparing the size specification parameters of the charging interface of the finished lithium battery with the standard size specification parameters corresponding to the model of the finished lithium battery in the database, and calculating the outline size conformity of the charging interface corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein sigma is expressed as the outline dimension compliance of the charging interface of the finished lithium battery, and d 0 And g 0 The diameter and the protruding height of the standard charging interface are respectively represented as the diameter and the protruding height of the standard charging interface corresponding to the model of the finished lithium battery, and d and g are respectively represented as the diameter and the protruding height of the charging interface of the finished lithium battery.
As a preferred scheme, the charging interface appearance quality monitoring unit is used for detecting the appearance quality of the charging interface of the finished lithium battery, and the specific detection comprises the following steps:
f1, extracting a three-dimensional appearance image of a charging interface of the finished lithium battery from the acquired three-dimensional appearance image of the finished lithium battery;
f2, comparing the three-dimensional appearance image of the charging interface of the finished lithium battery with the three-dimensional appearance image of the standard charging interface corresponding to the model of the finished lithium battery in the database, judging whether the charging interface has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the charging interface of the finished lithium battery;
f3, comparing the appearance defect area of the charging interface of the finished lithium battery with the allowable area of the appearance defect of the charging interface preset in the database, and calculating the appearance quality conformity of the charging interface of the finished lithium battery, wherein the calculation formula is as follows:wherein alpha is represented as the appearance quality conformity of a charging interface of the finished lithium battery, and r 0 The charging interface appearance defect allowable area of the model of the finished lithium battery is represented, and r is represented as the charging interface appearance defect area of the finished lithium battery.
As a preferred scheme, the charging electrical quality monitoring unit is used for detecting the charging electrical quality of the finished lithium battery, and the specific detection steps are as follows:
the method comprises the steps of G1, carrying out charging operation on a finished lithium battery, dividing a charging process according to preset intervals to obtain a plurality of charging time points, and extracting charging voltage, charging current and charging electric quantity of the finished lithium battery at each charging time point;
and G2, comparing the charging voltage, the charging current and the charging electric quantity of the finished lithium battery at each charging time point with the standard charging voltage, the standard charging current and the standard charging electric quantity of the model of the finished lithium battery stored in the database at each charging time point, and calculating a charging operation parameter fluctuation value corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein xi is expressed as the fluctuation value of the charging operation parameter of the finished lithium battery, U 0 、I 0 And P 0 The standard charging voltage, standard charging current and standard charging capacity corresponding to the preset finished lithium battery at each charging time point are respectively represented, and U, I and P are respectively represented as the charging voltage, charging current and charging capacity of the finished lithium battery at each charging time point.
As a preferred solution, the charging temperature quality monitoring unit is configured to detect the charging temperature quality of a finished lithium battery, and the specific detection steps are as follows:
h1, collecting the charging temperature of a finished lithium battery at each charging time point;
h2, drawing a charging temperature change curve of the finished lithium battery by taking a charging time point as an abscissa and a charging temperature as an ordinate;
h3, overlapping and comparing the charging temperature change curve of the finished lithium battery with a standard charging temperature change curve corresponding to the model of the finished lithium battery stored in a database, extracting the length of the overlapped curve, and calculating the coincidence degree of the charging temperature change curve corresponding to the finished lithium battery, wherein the calculation formula is as followsWherein->The charging temperature change curve of the finished lithium battery is represented as the coincidence degree, and f is represented as the charging temperature of the finished lithium batteryAnd F is the length of the standard charging temperature change curve corresponding to the model of the finished lithium battery.
As a preferable scheme, the comprehensive production quality coefficient corresponding to the finished lithium battery is as follows:wherein eta is expressed as the corresponding comprehensive production quality coefficient of the finished lithium battery.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
(1) According to the invention, the production quality of the finished lithium battery is monitored and analyzed on line based on machine vision, so that compared with the traditional manual inspection mode, the workload of the detection personnel can be effectively reduced, the body load of the detection personnel is greatly lightened, and the manual detection cost is greatly reduced.
(2) The invention judges whether the production quality of the finished lithium battery is qualified or not by comprehensively producing the quality coefficient of the finished lithium battery based on the apparent quality monitoring, the charging interface quality monitoring and the charging performance quality monitoring of the finished lithium battery. The method not only comprises the apparent quality monitoring of the finished lithium battery, but also comprises the charging interface quality monitoring and the charging performance quality monitoring of the finished lithium battery, and realizes the monitoring of multiple dimensions of the finished lithium battery. On one hand, the comprehensive production quality of the finished lithium battery can be effectively reflected, and on the other hand, the judgment limitation caused by judging whether the production is qualified or not on one side by means of the apparent quality monitoring result in the prior art is overcome, so that the detection accuracy and the quality supervision level of the finished lithium battery are improved.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic diagram of a system connection structure according to the present invention.
FIG. 2 is a schematic diagram of the connection of the apparent mass monitoring module of the present invention.
Fig. 3 is a schematic connection diagram of a charging interface quality monitoring module according to the present invention.
Fig. 4 is a schematic connection diagram of the charging performance quality monitoring module according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the invention provides a machine vision-based power lithium battery production quality online monitoring and analyzing system, which comprises an apparent quality monitoring module, a charging interface quality monitoring module, a charging performance quality monitoring module, a database, a comprehensive production quality analyzing module and a display terminal.
The comprehensive production quality analysis module is respectively connected with the apparent quality monitoring module, the charging interface quality monitoring module, the charging performance quality monitoring module, the database and the display terminal.
The apparent mass monitoring module is used for carrying out apparent mass monitoring on the finished lithium battery to obtain the corresponding outline dimension conformity, weight mass conformity and appearance quality conformity of the finished lithium battery.
Referring to fig. 2, the apparent mass monitoring module includes a size mass monitoring unit, a weight mass monitoring unit, and an apparent mass monitoring unit;
specifically, the size quality monitoring unit is used for detecting the quality of the external dimension of the finished lithium battery, and the specific detection process comprises the following steps:
a1, detecting size parameters of a finished lithium battery, wherein the size parameters comprise length, width and height;
a2, the dimension parameters of the finished lithium battery and the model of the finished lithium battery in the database are processedThe corresponding standard size parameters are compared, the outline size coincidence degree corresponding to the finished lithium battery is calculated, and the calculation formula is as follows:lambda is expressed as the corresponding outline dimension compliance of the finished lithium battery, l 0 、w 0 And h 0 Respectively representing the standard length, standard width and standard height corresponding to the model of the finished lithium battery, and l, w and h respectively representing the length, width and height of the finished lithium battery.
In the above calculation formula of the outline dimension conformity, the smaller the difference between the length, width and height of a certain finished lithium battery and the standard length, standard width and standard height corresponding to the model of the finished lithium battery is, the larger the outline dimension conformity corresponding to the finished lithium battery is, which indicates that the outline dimension quality of the finished lithium battery meets the standard.
Specifically, the weight quality monitoring unit is used for detecting the quality of the weight of the finished lithium battery, and the specific detection comprises the following steps:
b1, detecting the weight of a finished lithium battery;
b2, comparing the weight of the finished lithium battery with the standard weight corresponding to the model of the finished lithium battery in the database, and calculating the weight-quality conformity corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein beta is expressed as the weight and quality conformity corresponding to the finished lithium battery, and k 0 The standard weight is expressed as the standard weight corresponding to the model of the finished lithium battery, and k is expressed as the weight of the finished lithium battery.
In the weight quality conformity calculation formula, the smaller the difference between the weight of a certain finished lithium battery and the standard weight corresponding to the model of the finished lithium battery is, the larger the weight quality conformity corresponding to the finished lithium battery is, which indicates that the weight quality of the finished lithium battery is more in accordance with the standard.
Specifically, the appearance quality monitoring unit is used for detecting appearance aspects of the finished lithium battery, and the specific detection comprises the following steps:
c1, acquiring three-dimensional appearance images of a finished lithium battery through a high-definition camera;
c2, comparing the three-dimensional appearance image of the finished lithium battery with a standard three-dimensional appearance image corresponding to the model of the finished lithium battery in a database, judging whether the finished lithium battery has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the finished lithium battery;
and C3, comparing the appearance defect area of the finished lithium battery with the preset appearance defect allowable area of the finished lithium battery in a database, and calculating the appearance quality conformity of the finished lithium battery, wherein the calculation formula is as follows:wherein delta is expressed as the appearance quality conformity of the finished lithium battery, s 0 And s is the appearance defect area of the finished lithium battery.
In the above appearance quality conformity calculation formula, the smaller the difference between the appearance defect area of a certain finished lithium battery and the allowable area of the finished appearance defect corresponding to the model of the finished lithium battery, the larger the appearance quality conformity corresponding to the finished lithium battery, which indicates that the appearance quality of the finished lithium battery meets the standard.
The charging interface quality monitoring module is used for monitoring the quality of a charging interface of the finished lithium battery, and obtaining the corresponding charging interface position setting compliance of the finished lithium battery, the charging interface outline dimension compliance and the charging interface appearance quality compliance.
Referring to fig. 3, the charging interface quality monitoring module includes a charging interface position quality monitoring unit, a charging interface size quality monitoring unit, and a charging interface appearance quality monitoring unit.
Specifically, the charging interface position quality monitoring unit is used for detecting the quality of the charging interface position of the lithium battery, and the specific detection comprises the following steps:
d1, establishing a three-dimensional coordinate system of a finished lithium battery;
d2, positioning three-dimensional coordinates of the charging interface position from the three-dimensional appearance image of the finished lithium battery based on the established three-dimensional coordinate system;
and D3, comparing the three-dimensional coordinates of the charging interface position of the finished lithium battery with the three-dimensional coordinates of the standard charging interface position corresponding to the model of the finished lithium battery in the database, and calculating the setting conformity of the charging interface position corresponding to the finished lithium battery, wherein the calculation formula is as follows:mu, wherein the position of a charging interface expressed as a finished lithium battery is provided with the conformity degree, x 0 、y 0 And z 0 And the three-dimensional coordinate values of the charging interface positions of the finished lithium battery on the x axis, the y axis and the z axis are respectively represented as the three-dimensional coordinate values of the standard charging interface positions of the finished lithium battery on the x axis, the y axis and the z axis corresponding to the model of the finished lithium battery.
In the above calculation formula for the degree of coincidence of the charging interface position, the smaller the difference between the three-dimensional coordinate values of the charging interface position of a certain finished lithium battery on the x-axis, the y-axis and the z-axis and the three-dimensional coordinate values of the standard charging interface position on the x-axis, the y-axis and the z-axis corresponding to the model of the finished lithium battery is, the larger the degree of coincidence of the charging interface position corresponding to the finished lithium battery is, which indicates that the quality of the charging interface position of the finished lithium battery is more in accordance with the standard.
Specifically, the charging interface size and quality monitoring unit is used for performing quality detection on the charging interface size specification of the finished lithium battery, and the specific detection comprises the following steps:
e1, detecting size specification parameters of a charging interface of a finished lithium battery, wherein the size parameters comprise diameter and protrusion height;
e2, comparing the size specification parameters of the charging interface of the finished lithium battery with the standard size specification parameters corresponding to the model of the finished lithium battery in the database, calculating the outline size conformity of the charging interface corresponding to the finished lithium battery, and calculating the outline size conformityThe formula is:wherein sigma is expressed as the outline dimension compliance of the charging interface of the finished lithium battery, and d 0 And g 0 The diameter and the protruding height of the standard charging interface are respectively represented as the diameter and the protruding height of the standard charging interface corresponding to the model of the finished lithium battery, and d and g are respectively represented as the diameter and the protruding height of the charging interface of the finished lithium battery.
It should be noted that, in the above calculation formula of the outline dimension conformity of the charging interface, the smaller the difference between the diameter and the protrusion height of the charging interface of a certain finished lithium battery and the standard charging interface diameter and the standard charging interface protrusion height corresponding to the model of the finished lithium battery, the larger the outline dimension conformity of the charging interface corresponding to the finished lithium battery, which indicates that the quality of the charging interface dimension of the finished lithium battery conforms to the standard.
Specifically, the charging interface appearance quality monitoring unit is used for detecting the appearance quality of the charging interface of the finished lithium battery, and the specific detection comprises the following steps:
f1, extracting a three-dimensional appearance image of a charging interface of the finished lithium battery from the acquired three-dimensional appearance image of the finished lithium battery;
f2, comparing the three-dimensional appearance image of the charging interface of the finished lithium battery with the three-dimensional appearance image of the standard charging interface corresponding to the model of the finished lithium battery in the database, judging whether the charging interface has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the charging interface of the finished lithium battery;
f3, comparing the appearance defect area of the charging interface of the finished lithium battery with the allowable area of the appearance defect of the charging interface preset in the database, and calculating the appearance quality conformity of the charging interface of the finished lithium battery, wherein the calculation formula is as follows:wherein alpha is represented as the appearance quality conformity of a charging interface of the finished lithium battery, and r 0 Expressed as the model of the finished lithium batteryAnd r is expressed as the charging interface appearance defect area of the finished lithium battery.
In the above calculation formula of the appearance quality conformity of the charging interface, the smaller the difference between the appearance defect area of the charging interface of a certain finished lithium battery and the appearance defect allowable area of the charging interface of the model to which the finished lithium battery belongs, the larger the appearance quality conformity of the charging interface corresponding to the finished lithium battery indicates that the appearance quality of the charging interface of the finished lithium battery accords with the standard.
The charging performance quality monitoring module is used for monitoring the charging performance quality of the finished lithium battery to obtain the corresponding charging operation parameter fluctuation value and charging temperature change curve conformity of the finished lithium battery.
Referring to fig. 4, the charging performance quality monitoring module includes a charging electrical quality monitoring unit and a charging temperature quality monitoring unit.
Specifically, the charging electrical quality monitoring unit is used for detecting the charging electrical quality of the finished lithium battery, and the specific detection steps are as follows:
the method comprises the steps of G1, carrying out charging operation on a finished lithium battery, dividing a charging process according to preset intervals to obtain a plurality of charging time points, and extracting charging voltage, charging current and charging electric quantity of the finished lithium battery at each charging time point;
and G2, comparing the charging voltage, the charging current and the charging electric quantity of the finished lithium battery at each charging time point with the standard charging voltage, the standard charging current and the standard charging electric quantity of the model of the finished lithium battery stored in the database at each charging time point, and calculating a charging operation parameter fluctuation value corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein xi is expressed as the fluctuation value of the charging operation parameter of the finished lithium battery, U 0 、I 0 And P 0 Respectively representing the standard charging voltage, standard charging current and standard charging electric quantity corresponding to each charging time point of the preset finished lithium battery, U, I and PRespectively expressed as the charging voltage, the charging current and the charging capacity of the finished lithium battery at each charging time point.
It should be noted that, in the above calculation formula of the fluctuation value of the charging operation parameter, the smaller the difference between the charging voltage and the charging current of a certain finished lithium battery at each charging time point and the charging voltage, the charging current and the charging electric quantity corresponding to the preset finished lithium battery at each charging time point, the smaller the fluctuation value of the charging operation parameter corresponding to the finished lithium battery, which indicates that the charging electric quality of the finished lithium battery meets the standard.
Specifically, the charging temperature quality monitoring unit is used for detecting the charging temperature quality of the finished lithium battery, and the specific detection steps are as follows:
h1, collecting the charging temperature of a finished lithium battery at each charging time point;
h2, drawing a charging temperature change curve of the finished lithium battery by taking a charging time point as an abscissa and a charging temperature as an ordinate;
h3, overlapping and comparing the charging temperature change curve of the finished lithium battery with a standard charging temperature change curve corresponding to the model of the finished lithium battery stored in a database, extracting the length of the overlapped curve, and calculating the coincidence degree of the charging temperature change curve corresponding to the finished lithium battery, wherein the calculation formula is as followsWherein->The charging temperature change curve coincidence degree of the finished lithium battery is expressed, F is the length of coincidence of the charging temperature change curves of the finished lithium battery, and F is the length of the standard charging temperature change curve corresponding to the model of the finished lithium battery.
It should be noted that, in the above calculation formula of the coincidence degree of the charging temperature change curve, the greater the ratio of the coincidence length of the charging temperature change curve extracted from a certain finished lithium battery to the length of the temperature change curve corresponding to the model of the finished lithium battery, the greater the coincidence degree of the charging temperature change curve corresponding to the finished lithium battery, which indicates that the charging temperature quality of the finished lithium battery meets the standard.
The database is used for storing standard size parameters, standard weight, standard three-dimensional appearance images, standard appearance defect allowed areas, standard charging interface position three-dimensional coordinates, standard charging interface size specification parameters, standard charging interface three-dimensional appearance images, charging interface appearance defect allowed areas, standard charging voltage, standard charging current and standard charging electric quantity of each charging time point corresponding to the model of the finished lithium battery, and storing standard charging temperature change curves.
The comprehensive production quality analysis module is used for evaluating the comprehensive production quality coefficient of the finished lithium battery based on the apparent quality monitoring result, the charging interface quality monitoring result and the charging performance quality monitoring result of the finished lithium battery.
Specifically, the calculation formula of the comprehensive production quality coefficient corresponding to the finished lithium battery is as follows:wherein eta is expressed as the corresponding comprehensive production quality coefficient of the finished lithium battery.
In the above calculation formula of the comprehensive production quality coefficient corresponding to the finished lithium battery, the larger the calculated comprehensive production quality coefficient of the finished lithium battery is, the more the production quality of the finished lithium battery meets the standard.
According to the embodiment of the invention, whether the finished lithium battery is qualified in production is evaluated based on the apparent quality monitoring result, the charging interface quality monitoring result and the charging performance quality monitoring result of the finished lithium battery, so that the method comprises the apparent quality monitoring of the finished lithium battery, the charging interface quality monitoring and the charging performance quality monitoring of the finished lithium battery, and the monitoring of multiple dimensions of the finished lithium battery is realized. On one hand, the comprehensive production quality of the finished lithium battery can be effectively reflected, and on the other hand, the judgment limitation caused by judging whether the production is qualified or not on one side by means of the apparent quality monitoring result in the prior art is overcome, so that the detection accuracy and the quality supervision level of the finished lithium battery are improved.
The display terminal is used for displaying the comprehensive production quality coefficient of the finished lithium battery, a visual interface is provided for the detection personnel, so that the detection personnel can intuitively know whether the finished lithium battery meets the qualification standard or not, the detection personnel can clearly and intuitively know the comprehensive production quality of the finished lithium battery, the workload of the detection personnel is effectively reduced, the body load of the detection personnel is greatly lightened, and the manual detection cost is greatly reduced.
The foregoing is merely illustrative of the structures of this invention and various modifications, additions and substitutions for those skilled in the art can be made to the described embodiments without departing from the scope of the invention or from the scope of the invention as defined in the accompanying claims.
Claims (2)
1. The utility model provides a power lithium cell production quality on-line monitoring analysis system based on machine vision which characterized in that includes: the system comprises an apparent mass monitoring module, a charging interface mass monitoring module, a charging performance mass monitoring module, a database, a comprehensive production mass analysis module and a display terminal;
the comprehensive production quality analysis module is respectively connected with the apparent quality monitoring module, the charging interface quality monitoring module, the charging performance quality monitoring module, the database and the display terminal;
the apparent mass monitoring module is used for monitoring the apparent mass of the finished lithium battery, wherein the apparent mass monitoring module comprises a size mass monitoring unit, a weight mass monitoring unit and an appearance mass monitoring unit;
the charging interface quality monitoring module is used for monitoring the quality of a charging interface of the finished lithium battery, wherein the charging interface quality monitoring module comprises a charging interface position quality monitoring unit, a charging interface size quality monitoring unit and a charging interface appearance quality monitoring unit;
the charging performance quality monitoring module is used for monitoring the charging performance quality of the finished lithium battery, wherein the charging performance quality monitoring module comprises a charging electrical quality monitoring unit and a charging temperature quality monitoring unit;
the database is used for storing standard size parameters, standard weight, standard three-dimensional appearance images, a finished product appearance defect allowed area, standard charging interface position three-dimensional coordinates, standard charging interface size specification parameters, standard charging interface three-dimensional appearance images, charging interface appearance defect allowed areas, standard charging voltage, standard charging current and standard charging electric quantity of each charging time point and storing standard charging temperature change curves corresponding to the model of the finished lithium battery;
the comprehensive production quality analysis module is used for evaluating the comprehensive production quality coefficient of the finished lithium battery based on the apparent quality monitoring result, the charging interface quality monitoring result and the charging performance quality monitoring result of the finished lithium battery;
the display terminal is used for displaying the comprehensive production quality coefficient of the finished lithium battery;
the size quality monitoring unit is used for detecting the quality of the external dimension of the finished lithium battery, and the specific detection process comprises the following steps:
a1, detecting size parameters of a finished lithium battery, wherein the size parameters comprise length, width and height;
a2, comparing the size parameter of the finished lithium battery with the standard size parameter corresponding to the model of the finished lithium battery in the database, and calculating the outline size conformity corresponding to the finished lithium battery, wherein the calculation formula is as follows:lambda is expressed as the corresponding outline dimension compliance of the finished lithium battery, l 0 、w 0 And h 0 Respectively representing the standard length, standard width and standard height corresponding to the model of the finished lithium battery, and l, w and h respectively represent the length, width and height of the finished lithium battery;
the weight quality monitoring unit is used for detecting the weight of the finished lithium battery, and the specific detection comprises the following steps:
b1, detecting the weight of a finished lithium battery;
b2, comparing the weight of the finished lithium battery with the standard weight corresponding to the model of the finished lithium battery in the database, and calculating the weight-quality conformity corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein beta is expressed as the weight and quality conformity corresponding to the finished lithium battery, and k 0 The standard weight is expressed as the standard weight corresponding to the model of the finished lithium battery, and k is expressed as the weight of the finished lithium battery;
the appearance quality monitoring unit is used for detecting the appearance aspect of the finished lithium battery, and the specific detection comprises the following steps:
c1, acquiring three-dimensional appearance images of a finished lithium battery through a high-definition camera;
c2, comparing the three-dimensional appearance image of the finished lithium battery with a standard three-dimensional appearance image corresponding to the model of the finished lithium battery in a database, judging whether the finished lithium battery has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the finished lithium battery;
and C3, comparing the appearance defect area of the finished lithium battery with the preset appearance defect allowable area of the finished lithium battery in a database, and calculating the appearance quality conformity of the finished lithium battery, wherein the calculation formula is as follows:wherein delta is expressed as the appearance quality conformity of the finished lithium battery, s 0 The appearance defect allowable area of the finished product corresponding to the model of the finished product lithium battery is expressed, and s is expressed as the appearance defect area of the finished product lithium battery;
the charging interface position quality monitoring unit is used for detecting the quality of the charging interface position of the lithium battery, and the specific detection comprises the following steps:
d1, establishing a three-dimensional coordinate system of a finished lithium battery;
d2, positioning three-dimensional coordinates of the charging interface position from the three-dimensional appearance image of the finished lithium battery based on the established three-dimensional coordinate system;
and D3, comparing the three-dimensional coordinates of the charging interface position of the finished lithium battery with the three-dimensional coordinates of the standard charging interface position corresponding to the model of the finished lithium battery in the database, and calculating the setting conformity of the charging interface position corresponding to the finished lithium battery, wherein the calculation formula is as follows:mu, wherein the position of a charging interface expressed as a finished lithium battery is provided with the conformity degree, x 0 、y 0 And z 0 Respectively representing three-dimensional coordinate values of the standard charging interface positions on the x axis, the y axis and the z axis corresponding to the model of the finished lithium battery, wherein x, y and z are respectively represented as three-dimensional coordinate values of the charging interface positions of the finished lithium battery on the x axis, the y axis and the z axis;
the charging interface size and quality monitoring unit is used for detecting the quality of the charging interface size specification of the finished lithium battery, and the specific detection comprises the following steps:
e1, detecting size specification parameters of a charging interface of a finished lithium battery, wherein the size parameters comprise diameter and protrusion height;
and E2, comparing the size specification parameters of the charging interface of the finished lithium battery with the standard size specification parameters corresponding to the model of the finished lithium battery in the database, and calculating the outline size conformity of the charging interface corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein sigma is expressed as the outline dimension compliance of the charging interface of the finished lithium battery, and d 0 And g 0 The diameter and the protrusion height of the standard charging interface are respectively represented as the diameter and the protrusion height of the standard charging interface corresponding to the model of the finished lithium battery, and d and g are respectively represented as the diameter and the protrusion height of the charging interface of the finished lithium battery;
the charging interface appearance quality monitoring unit is used for detecting the appearance quality of a charging interface of a finished lithium battery, and the specific detection comprises the following steps:
f1, extracting a three-dimensional appearance image of a charging interface of the finished lithium battery from the acquired three-dimensional appearance image of the finished lithium battery;
f2, comparing the three-dimensional appearance image of the charging interface of the finished lithium battery with the three-dimensional appearance image of the standard charging interface corresponding to the model of the finished lithium battery in the database, judging whether the charging interface has defects, and if so, positioning an appearance defect area from the three-dimensional appearance image, thereby extracting the defect area of the appearance defect of the charging interface of the finished lithium battery;
f3, comparing the appearance defect area of the charging interface of the finished lithium battery with the allowable area of the appearance defect of the charging interface preset in the database, and calculating the appearance quality conformity of the charging interface of the finished lithium battery, wherein the calculation formula is as follows:wherein alpha is represented as the appearance quality conformity of a charging interface of the finished lithium battery, and r 0 The charging interface appearance defect allowable area of the model of the finished lithium battery is represented, and r represents the charging interface appearance defect area of the finished lithium battery;
the charging electrical quality monitoring unit is used for detecting the charging electrical quality of the finished lithium battery, and the specific detection steps are as follows:
the method comprises the steps of G1, carrying out charging operation on a finished lithium battery, dividing a charging process according to preset intervals to obtain a plurality of charging time points, and extracting charging voltage, charging current and charging electric quantity of the finished lithium battery at each charging time point;
and G2, comparing the charging voltage, the charging current and the charging electric quantity of the finished lithium battery at each charging time point with the standard charging voltage, the standard charging current and the standard charging electric quantity of the model of the finished lithium battery stored in the database at each charging time point, and calculating a charging operation parameter fluctuation value corresponding to the finished lithium battery, wherein the calculation formula is as follows:wherein xi is expressed as the fluctuation value of the charging operation parameter of the finished lithium battery, U 0 、I 0 And P 0 The standard charging voltage, the standard charging current and the standard charging electric quantity corresponding to the preset finished lithium battery at each charging time point are respectively represented, and U, I and P are respectively represented as the charging voltage, the charging current and the charging electric quantity of the finished lithium battery at each charging time point;
the charging temperature quality monitoring unit is used for detecting the charging temperature quality of the finished lithium battery, and the specific detection steps are as follows:
h1, collecting the charging temperature of a finished lithium battery at each charging time point;
h2, drawing a charging temperature change curve of the finished lithium battery by taking a charging time point as an abscissa and a charging temperature as an ordinate;
h3, overlapping and comparing the charging temperature change curve of the finished lithium battery with a standard charging temperature change curve corresponding to the model of the finished lithium battery stored in a database, extracting the length of the overlapped curve, and calculating the coincidence degree of the charging temperature change curve corresponding to the finished lithium battery, wherein the calculation formula is as followsWherein->The charging temperature change curve coincidence degree of the finished lithium battery is expressed, F is the length of coincidence of the charging temperature change curves of the finished lithium battery, and F is the length of the standard charging temperature change curve corresponding to the model of the finished lithium battery.
2. The machine vision-based power lithium battery production quality online monitoring and analyzing system according to claim 1, wherein the system comprises the following components: the calculation formula of the comprehensive production quality coefficient corresponding to the finished lithium battery is as follows:wherein eta is expressed as a finished lithium batteryAnd (5) the comprehensive production quality coefficient corresponding to the pool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210697646.4A CN115060320B (en) | 2022-06-20 | 2022-06-20 | Online monitoring and analyzing system for production quality of power lithium battery based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210697646.4A CN115060320B (en) | 2022-06-20 | 2022-06-20 | Online monitoring and analyzing system for production quality of power lithium battery based on machine vision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115060320A CN115060320A (en) | 2022-09-16 |
| CN115060320B true CN115060320B (en) | 2023-09-29 |
Family
ID=83202896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210697646.4A Active CN115060320B (en) | 2022-06-20 | 2022-06-20 | Online monitoring and analyzing system for production quality of power lithium battery based on machine vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115060320B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116448666B (en) * | 2023-04-12 | 2024-03-26 | 广东奥普特科技股份有限公司 | Detection device and detection method for lithium battery box based on machine vision |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963553A (en) * | 2005-11-09 | 2007-05-16 | 比亚迪股份有限公司 | System and method for testing battery |
| CN104035048A (en) * | 2014-06-20 | 2014-09-10 | 上海出入境检验检疫局工业品与原材料检测技术中心 | Pyroelectric detection method and device for over-charged safety performance of lithium ion battery |
| CN104751447A (en) * | 2015-01-10 | 2015-07-01 | 哈尔滨工业大学（威海） | Lithium battery unit defect detection method |
| CN204517449U (en) * | 2015-04-02 | 2015-07-29 | 宁波高新区大雅泰科科技发展有限公司 | A kind of lithium battery integrated management system of vehicle using motor |
| CN105158693A (en) * | 2015-08-09 | 2015-12-16 | 安徽普为智能科技有限责任公司 | Lithium battery electric-leakage detection method |
| CN105576318A (en) * | 2016-02-23 | 2016-05-11 | 上海电力学院 | Multi-parameter comprehensive determination method for determining consistency of electric automobile retired lithium batteries |
| CN108107051A (en) * | 2017-12-19 | 2018-06-01 | 无锡先导智能装备股份有限公司 | lithium battery defect detecting system and method based on machine vision |
| WO2018112881A1 (en) * | 2016-12-23 | 2018-06-28 | 深圳中兴力维技术有限公司 | Rapid prediction method for battery charging performance and system thereof |
| CN108459029A (en) * | 2018-06-08 | 2018-08-28 | 中国科学技术大学 | A kind of lithium battery production formation detection equipment and detection method based on image |
| CN110220910A (en) * | 2019-05-05 | 2019-09-10 | 枣庄市产品质量监督检验所 | A kind of lithium battery total quality on-line monitoring system and method based on machine vision |
| CN110579716A (en) * | 2019-10-22 | 2019-12-17 | 东软睿驰汽车技术（沈阳）有限公司 | Battery detection method and device |
| CN110802042A (en) * | 2019-11-12 | 2020-02-18 | 中国计量大学 | Lithium battery intelligent detection and control system based on machine vision |
| CN112240986A (en) * | 2019-07-18 | 2021-01-19 | 万向一二三股份公司 | Lithium precipitation and uniformity evaluation method for large-size soft package lithium ion battery |
| CN112730432A (en) * | 2020-12-24 | 2021-04-30 | 苏州赛众自动化科技有限公司 | Laser welding defect detection equipment and detection method for lithium battery of mobile phone |
| CN113240658A (en) * | 2021-05-25 | 2021-08-10 | 中国矿业大学 | Battery charging system and method based on machine vision |
| CN114519539A (en) * | 2022-04-19 | 2022-05-20 | 东莞市俱进塑胶科技有限公司 | Big data analysis-based plastic product quality monitoring and analyzing system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3011393B1 (en) * | 2013-10-01 | 2017-02-10 | Centre Nat Rech Scient | METHOD AND APPARATUS FOR EVALUATING THE HEALTH CONDITION OF A LITHIUM BATTERY |
| CN110414117B (en) * | 2019-07-23 | 2020-11-06 | 北京航空航天大学 | Method for predicting sealing reliability of soft package lithium ion battery |
-
2022
- 2022-06-20 CN CN202210697646.4A patent/CN115060320B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1963553A (en) * | 2005-11-09 | 2007-05-16 | 比亚迪股份有限公司 | System and method for testing battery |
| CN104035048A (en) * | 2014-06-20 | 2014-09-10 | 上海出入境检验检疫局工业品与原材料检测技术中心 | Pyroelectric detection method and device for over-charged safety performance of lithium ion battery |
| CN104751447A (en) * | 2015-01-10 | 2015-07-01 | 哈尔滨工业大学（威海） | Lithium battery unit defect detection method |
| CN204517449U (en) * | 2015-04-02 | 2015-07-29 | 宁波高新区大雅泰科科技发展有限公司 | A kind of lithium battery integrated management system of vehicle using motor |
| CN105158693A (en) * | 2015-08-09 | 2015-12-16 | 安徽普为智能科技有限责任公司 | Lithium battery electric-leakage detection method |
| CN105576318A (en) * | 2016-02-23 | 2016-05-11 | 上海电力学院 | Multi-parameter comprehensive determination method for determining consistency of electric automobile retired lithium batteries |
| WO2018112881A1 (en) * | 2016-12-23 | 2018-06-28 | 深圳中兴力维技术有限公司 | Rapid prediction method for battery charging performance and system thereof |
| CN108107051A (en) * | 2017-12-19 | 2018-06-01 | 无锡先导智能装备股份有限公司 | lithium battery defect detecting system and method based on machine vision |
| CN108459029A (en) * | 2018-06-08 | 2018-08-28 | 中国科学技术大学 | A kind of lithium battery production formation detection equipment and detection method based on image |
| CN110220910A (en) * | 2019-05-05 | 2019-09-10 | 枣庄市产品质量监督检验所 | A kind of lithium battery total quality on-line monitoring system and method based on machine vision |
| CN112240986A (en) * | 2019-07-18 | 2021-01-19 | 万向一二三股份公司 | Lithium precipitation and uniformity evaluation method for large-size soft package lithium ion battery |
| CN110579716A (en) * | 2019-10-22 | 2019-12-17 | 东软睿驰汽车技术（沈阳）有限公司 | Battery detection method and device |
| CN110802042A (en) * | 2019-11-12 | 2020-02-18 | 中国计量大学 | Lithium battery intelligent detection and control system based on machine vision |
| CN112730432A (en) * | 2020-12-24 | 2021-04-30 | 苏州赛众自动化科技有限公司 | Laser welding defect detection equipment and detection method for lithium battery of mobile phone |
| CN113240658A (en) * | 2021-05-25 | 2021-08-10 | 中国矿业大学 | Battery charging system and method based on machine vision |
| CN114519539A (en) * | 2022-04-19 | 2022-05-20 | 东莞市俱进塑胶科技有限公司 | Big data analysis-based plastic product quality monitoring and analyzing system |
Non-Patent Citations (4)
| Title |
|---|
| 储能锂电池运行状态综合评估指标研究;陈豪等;《中国电力》;20160505(第05期);全文 * |
| 模型引导与视觉分析相结合的3D打印产品质量检测方法;毋立芳等;《北京工业大学学报》;20170411(第04期);全文 * |
| 电子接插件在线质量检测研究;邹龙飞等;《计测技术》;20150428(第02期);全文 * |
| 锂电池性能实验平台设计与实现;刘奕彤;《科技风》;20180320(第08期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115060320A (en) | 2022-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111398833B (en) | Battery health state assessment method | |
| CN106597305B (en) | A kind of Cycle life prediction method of lithium ion battery | |
| CN110109029B (en) | Battery cell lithium analysis parameter detection method and device, battery cell detection system and computer readable storage medium | |
| CN110333463B (en) | Battery cell consistency screening method and system | |
| CN116502112B (en) | New energy power supply test data management method and system | |
| CN115060320B (en) | Online monitoring and analyzing system for production quality of power lithium battery based on machine vision | |
| CN108519558A (en) | A kind of detection method, controller and the automobile of power battery analysis lithium | |
| CN114722625B (en) | Method, system, terminal and medium for establishing monomer digital twin model of lithium battery | |
| CN115685946B (en) | Intelligent electricity utilization acquisition terminal production quality control method and system | |
| CN111123136A (en) | Online measuring device and online measuring method for health state of lithium ion battery | |
| Bai et al. | Study on distributed lithium-ion power battery grouping scheme for efficiency and consistency improvement | |
| CN110931901A (en) | Lithium battery flexible integration method and system for simulating electrical characteristics of lead-acid battery | |
| CN112180279A (en) | Retired battery health state diagnostic expert system | |
| CN116008827A (en) | Determination method and device for lithium ion battery lithium precipitation potential and electronic equipment | |
| CN115860566A (en) | Electrical safety management system for intelligent workshop production line | |
| CN112526353B (en) | Method and device for rapidly detecting SOC of retired lithium ion power battery | |
| CN117173100B (en) | Polymer lithium ion battery production control system and method thereof | |
| CN116540117A (en) | Power battery Y capacitance prediction system and prediction method | |
| CN115846231A (en) | Laboratory battery processing method | |
| CN115792634A (en) | Battery monomer voltage sampling fault identification method based on cloud online data | |
| CN115986229A (en) | Method for judging health degree of battery based on charging segment data | |
| CN115201681A (en) | Lithium battery safety performance detection method and system | |
| CN111190112B (en) | Battery charging and discharging prediction method and system based on big data analysis | |
| CN105759215B (en) | A kind of charged capacity prediction methods of the lead-acid accumulator of data-driven | |
| CN109765515A (en) | On-Line Monitor Device data accuracy intelligent checking system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231108 Address after: No. 60, Group 17, Laowei Village, Liji Township, Guannan County, Lianyungang, Jiangsu Province, 223500 Patentee after: Song Dangjian Address before: No. 722, Heping Avenue, Wuchang District, Wuhan City, Hubei Province, 430061 Patentee before: Wuhan Taochu Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: No. 168-27, Baitaji Town, Jintan District, Changzhou City, Jiangsu Province, 213000 Patentee after: Changzhou Baoxin Precision Technology Co.,Ltd. Address before: No. 60, Group 17, Laowei Village, Liji Township, Guannan County, Lianyungang, Jiangsu Province, 223500 Patentee before: Song Dangjian |
|
| TR01 | Transfer of patent right |