CN111293374A - Battery pack management method and device based on ultrasonic waves - Google Patents
Battery pack management method and device based on ultrasonic waves Download PDFInfo
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- CN111293374A CN111293374A CN202010370046.8A CN202010370046A CN111293374A CN 111293374 A CN111293374 A CN 111293374A CN 202010370046 A CN202010370046 A CN 202010370046A CN 111293374 A CN111293374 A CN 111293374A
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4242—Regeneration of electrolyte or reactants
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention discloses a battery pack management method and device based on ultrasonic waves, which are used for monitoring liquid level information of all storage batteries in an ultrasonic mode and realizing water replenishing management of a battery pack according to the liquid level information. The ultrasonic-based battery pack management method includes: monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain liquid level information of the storage batteries; determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold value or not according to the liquid level information; if the liquid level is lower than the liquid level safety threshold, generating early warning information; if the liquid level safety threshold value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height; calculating the remaining service time of the storage battery according to the test curve and the liquid level height; and making a water replenishing plan of the battery pack according to the remaining service time.
Description
Technical Field
The invention relates to the field of intelligent management of batteries, in particular to a battery pack management method and device based on ultrasonic waves.
Background
The electrode in the storage battery has high porosity and has the characteristic of absorbing or releasing water, the water is released during charging to enable the liquid level of the electrolyte to rise, the water is absorbed during discharging to enable the liquid level of the electrolyte to fall, and meanwhile, a diaphragm of the storage battery has high liquid absorption capacity, so that the liquid level of the electrolyte is greatly changed during charging and discharging of the storage battery, partial water is electrolyzed to generate oxygen and hydrogen at the later charging stage (or overdischarge), and then the natural evaporation and other factors of the storage battery liquid during normal use can cause a certain amount of water consumption of the storage battery after a period of use. When the electrolyte level is reduced to the vicinity of the lowest level line, distilled water is added to a position 10mm below the highest level line.
In order to ensure the normal operation of the storage battery, the liquid level of the storage battery needs to be ensured to be in a normal range, and the liquid level of the storage battery needs to be checked in 1-3 months. The existing liquid level checking mode comprises a glass tube immersion mode and a flashlight irradiation mode, all the modes need manual operation of workers, and the manual checking cost is increased. In addition, the liquid level of the single battery is checked by a measuring device such as an ultrasonic device, but still only the liquid level of a single battery is checked, and one battery pack is composed of dozens of or more storage batteries, so that the management of all the storage batteries of the battery pack cannot be realized.
Disclosure of Invention
The invention aims to provide a battery pack management method and device based on ultrasonic waves, which are used for monitoring liquid level information of all storage batteries in an ultrasonic mode and realizing water replenishing management of a battery pack according to the liquid level information.
The invention provides a battery pack management method based on ultrasonic waves, which comprises the following steps:
monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain liquid level information of the storage batteries;
determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold value or not according to the liquid level information;
if the liquid level is lower than the liquid level safety threshold, generating early warning information;
if the liquid level safety threshold value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
calculating the remaining service time of the storage battery according to the test curve and the liquid level height;
and making a water replenishing plan of the battery pack according to the remaining service time.
Further, the method further comprises:
before a new storage battery is added or replaced to the battery pack, recording a relation curve of the service time and the liquid level height of the new storage battery through a storage battery discharge test to generate a test curve;
when a new battery is added or replaced to the battery pack, a test curve of the battery is acquired and saved.
Further, the method for calculating the remaining service time of the storage battery according to the test curve and the liquid level height comprises the following steps:
determining a current use time point corresponding to the liquid level height in the test curve;
determining a safe use time point corresponding to the liquid level safety threshold in the test curve;
and obtaining the residual service time of the storage battery according to the current service time point and the safe service time point.
Further, a water replenishing plan of the battery pack is formulated according to the remaining service life, and the water replenishing plan comprises the following steps:
determining the water replenishing time of the storage battery according to the remaining service time;
dividing the storage batteries into at least two storage battery groups according to the water replenishing time of each storage battery and a preset time cycle rule;
taking the water replenishing time closest to the current time in each storage battery group as the group water replenishing time;
obtaining a water replenishing period of the storage battery group according to the group water replenishing time;
and obtaining a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing period of the storage battery group.
Further, the method further comprises:
and displaying the early warning information and the water replenishing plan.
A second aspect of the present invention provides an ultrasonic-based battery pack management apparatus, comprising:
the ultrasonic detector is used for monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain the liquid level information of the storage batteries;
the processor is used for determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold value or not according to the liquid level information;
the processor is also used for generating early warning information when the liquid level height is lower than the liquid level safety threshold;
the processor is also used for acquiring a test curve of the storage battery when the liquid level height is not lower than the liquid level safety threshold, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
the processor is also used for calculating the residual service time of the storage battery according to the test curve and the liquid level height;
and the processor is also used for making a water replenishing plan of the battery pack according to the residual service time.
Further, the apparatus further comprises: testing device
The tester is used for recording a relation curve of the service time and the liquid level height of the new storage battery through a storage battery discharge test before the new storage battery is added or replaced to the battery pack, and generating a test curve;
and the processor is also used for acquiring and saving the test curve of the storage battery when a new storage battery is added or replaced to the battery pack.
Further, in the above-mentioned case,
the processor is also used for determining the current use time point corresponding to the liquid level height in the test curve;
the processor is also used for determining a safe use time point corresponding to the liquid level safety threshold value in the test curve;
and the processor is also used for obtaining the residual service time of the storage battery according to the current service time point and the safe service time point.
Further, in the above-mentioned case,
the processor is also used for determining the water replenishing time of the storage battery according to the residual service time;
the processor is also used for dividing the storage batteries into at least two storage battery groups according to the water replenishing time of each storage battery and a preset time cycle rule;
the processor is also used for taking the water replenishing time closest to the current time in each storage battery group as the group water replenishing time;
the processor is also used for obtaining the water replenishing period of the storage battery group according to the group water replenishing time;
and the processor is also used for obtaining a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing period of the storage battery group.
Further, the apparatus further comprises: an information display;
and the information display is used for displaying the early warning information and the water replenishing plan.
Therefore, the battery pack management method based on ultrasonic waves comprises the steps of monitoring the liquid level of each storage battery in the battery pack through the ultrasonic waves to obtain the liquid level information of the storage batteries, determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold or not according to the liquid level information, and if the liquid level height of the corresponding storage battery is lower than the liquid level safety threshold, generating early warning information; if the current value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height, and calculating the residual service time of the storage battery according to the test curve and the liquid level height; and making a water replenishing plan of the battery pack according to the remaining service time. Therefore, the liquid level information of all the storage batteries is monitored in an ultrasonic mode, and water replenishing management of the battery pack can be realized according to the liquid level information.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic flow chart diagram illustrating one embodiment of an ultrasound-based battery pack management method provided by the present invention;
FIG. 2 is a schematic flow chart diagram illustrating another embodiment of an ultrasound-based battery pack management method provided by the present invention;
FIG. 3 is a schematic structural diagram of an embodiment of an ultrasound-based battery pack management apparatus according to the present invention;
FIG. 4 is a schematic structural diagram of another embodiment of an ultrasound-based battery pack management apparatus according to the present invention;
fig. 5 is a schematic structural diagram of still another embodiment of the ultrasound-based battery pack management apparatus according to the present invention.
Detailed Description
The core of the invention is to provide a battery pack management method and device based on ultrasonic waves, which are used for monitoring the liquid level information of all storage batteries in an ultrasonic mode and realizing water replenishing management of the battery pack according to the liquid level information.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a battery pack management method based on ultrasonic waves, including:
101. monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain liquid level information of the storage batteries;
in this embodiment, the liquid level of each single storage battery in the battery pack is monitored by a measuring device such as an ultrasonic device to obtain the liquid level information of the storage battery, and the liquid level information reflects the current liquid level height in the storage battery.
102. Determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold according to the liquid level information, if so, executing a step 103; if not, go to step 104;
in this embodiment, the liquid level height of the corresponding storage battery is determined through the liquid level information, in order to ensure the normal operation of the storage battery, it is necessary to ensure that the liquid level of the storage battery is within a normal range, a liquid level safety threshold is preset, if the liquid level safety threshold is lower than the liquid level safety threshold, water supplement is required, and if the liquid level safety threshold is not lower than the liquid level safety threshold, water supplement is not required immediately.
103. Generating early warning information;
in this embodiment, when the liquid level of battery was less than liquid level safety threshold, can't guarantee the normal work of battery, need send early warning information to remind the staff to carry out the moisturizing, perhaps change the battery.
Optionally, the early warning information may be displayed through signal lamps of different colors, sounders of different frequencies, or information such as characters, and the like, and the method is not limited specifically.
104. Obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
in this embodiment, when the liquid level height of battery is not less than liquid level safety threshold, need not immediately carry out the moisturizing to the battery, but for the convenience of moisturizing management, still hope to know how long later to moisturize the battery, consequently, need acquire the service time of battery and liquid level height relation curve, test curve promptly.
Optionally, the sources of the test curves are:
before a new storage battery is added or replaced to the battery pack, recording a relation curve of the service time and the liquid level height of the new storage battery through a storage battery discharge test to generate a test curve;
when a new storage battery is added or replaced to the battery pack, the test curve of the storage battery is obtained and stored, so that the corresponding test curve of the storage battery can be obtained from a memory or a system for storing the test curve.
In addition, since the production process and the material of the same type of storage battery are the same, the test curves may be the same, or the test curves may be provided by the storage battery manufacturer.
105. Calculating the remaining service time of the storage battery according to the test curve and the liquid level height;
in this embodiment, the test curve is a relationship curve between the usage time and the liquid level height, so that the usage time corresponding to the liquid level height can be determined when the current liquid level height of the storage battery is known, the normal usage time of the storage battery can be determined, and the remaining usage time of the storage battery can be calculated.
106. And making a water replenishing plan of the battery pack according to the remaining service time.
In this embodiment, according to the remaining usage time, it is possible to determine how long each storage battery needs to be replenished, thereby making a water replenishment plan for the battery pack.
In the embodiment of the invention, the battery pack management method based on ultrasonic waves monitors the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain the liquid level information of the storage batteries, determines whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold or not according to the liquid level information, and generates early warning information if the liquid level height of the corresponding storage battery is lower than the liquid level safety threshold; if the current value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height, and calculating the residual service time of the storage battery according to the test curve and the liquid level height; and making a water replenishing plan of the battery pack according to the remaining service time. Therefore, the liquid level information of all the storage batteries is monitored in an ultrasonic mode, and water replenishing management of the battery pack can be realized according to the liquid level information.
The remaining usage time and the water replenishment plan will be described below by way of examples.
Referring to fig. 2, an embodiment of the present invention provides a battery pack management method based on ultrasonic waves, including:
201. monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain liquid level information of the storage batteries;
202. determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold according to the liquid level information, if so, executing a step 203; if not, go to step 204;
203. generating early warning information;
204. obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
205. determining a current use time point corresponding to the liquid level height in the test curve;
in this embodiment, the use time corresponding to the liquid level height is found in the test curve, and the use time is taken as the current use time point T0.
206. Determining a safe use time point corresponding to the liquid level safety threshold in the test curve;
in this embodiment, the use time corresponding to the liquid level safety threshold is found in the test curve as the safe use time point T1.
207. Obtaining the remaining service time of the storage battery according to the current service time point and the safe service time point;
in this embodiment, the remaining use time T = T1-T0 of the battery can be obtained by subtracting the current use time T0 from the safe use time T1.
208. Determining the water replenishing time of the storage battery according to the remaining service time;
in this embodiment, in the case where the remaining usage time T = T1-T0 has been determined, it can be determined that the water replenishment time of the battery is at T1, but the battery is not always used, and if the battery pack is used as a backup, it is inaccurate, it is necessary to determine whether the battery pack is a backup battery pack, and if so, determine the number of times of use of the backup battery pack, and the usage time of each time, thereby determining the idle time of the battery, and the water replenishment time = (remaining usage time + idle time) -T0.
209. Dividing the storage batteries into at least two storage battery groups according to the water replenishing time of each storage battery and a preset time cycle rule;
in the embodiment, the battery pack is divided into at least two battery groups according to the preset time cycle rule according to the water replenishing time of each battery, for example, the battery pack includes 6 batteries, the water replenishing time of a1 is 1 day at 10 months in 2010, the water replenishing time of a2 is 2 days at 10 months in 2010, the water replenishing time of A3 is 7 days at 10 months in 2010, the water replenishing time of a4 is 11 days at 10 months in 2010, the water replenishing time of a5 is 13 days at 10 months in 2010, the water replenishing time of A6 is 24 days at 10 months in 2010, and the preset time cycle rule is 1 day-10 days, 11 days-20 days, and 21 days-30 days, so that a1, a2, and A3 are divided into the 1 st battery group, a4 and a5 are the 2 nd battery group, and A6 is the 3 rd battery group.
210. Taking the water replenishing time closest to the current time in each storage battery group as the group water replenishing time;
in this embodiment, the water replenishing time closest to the current time in each storage battery group is taken as the group water replenishing time, that is, the water replenishing time of a1 in the 1 st storage battery group is taken as the group water replenishing time in 2010, 10 months and 1 day; the 2 nd storage battery group takes A4 water replenishing time 2010, 10 months and 11 days as group water replenishing time; the 3 rd storage battery group takes the water replenishing time of A6, 2010, 10 months and 24 days as the group water replenishing time.
211. Obtaining a water replenishing period of the storage battery group according to the group water replenishing time;
in the embodiment, the water replenishing time of the group of the 1 st storage battery group is 2010, 10 months and 1 day as the water replenishing period of the 1 st storage battery group; taking the group water replenishing time of the 2 nd storage battery group as 10 months and 11 days in 2010 as the water replenishing period of the 2 nd storage battery group; and (4) taking the group water replenishing time of the 3 rd storage battery group as 10 months and 24 days in 2010 as the water replenishing period of the 3 rd storage battery group.
212. Obtaining a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing period of the storage battery group;
in this embodiment, after the water replenishing time of all the storage batteries and the water replenishing cycle of the storage battery group are calculated, a water replenishing plan for the battery pack is formulated.
213. And displaying the early warning information and the water replenishing plan.
In this embodiment, early warning information and a water replenishing plan are displayed through modes such as an early warning prompter or a display screen, and the early warning information and the water replenishing plan are used for reminding workers to replenish or replace the storage battery.
The method of ultrasound-based battery pack management has been specifically described in the above embodiments, and the ultrasound-based battery pack management apparatus to which the method is applied will be described in detail below.
Referring to fig. 3, an embodiment of the present invention provides an ultrasound-based battery pack management apparatus, including:
the ultrasonic detector 301 is used for monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain the liquid level information of the storage batteries;
a processor 302, configured to determine whether a liquid level height of a corresponding storage battery is lower than a liquid level safety threshold according to the liquid level information;
the processor 302 is further configured to generate early warning information when the liquid level is lower than the liquid level safety threshold;
the processor 302 is further configured to obtain a test curve of the storage battery when the liquid level height is not lower than the liquid level safety threshold, where the test curve is a relation curve between the service time of the storage battery and the liquid level height;
the processor 302 is further configured to calculate the remaining service time of the storage battery according to the test curve and the liquid level height;
and the processor 302 is also used for making a water replenishing plan of the battery pack according to the remaining use time.
In the embodiment of the invention, an ultrasonic detector 301 monitors the liquid level of each storage battery in a battery pack through ultrasonic waves to obtain liquid level information of the storage batteries, a processor 302 determines whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold according to the liquid level information, and if the liquid level height of the corresponding storage battery is lower than the liquid level safety threshold, early warning information is generated; if the current value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height, and calculating the residual service time of the storage battery according to the test curve and the liquid level height; and making a water replenishing plan of the battery pack according to the remaining service time. Therefore, the liquid level information of all the storage batteries is monitored in an ultrasonic mode, and water replenishing management of the battery pack can be realized according to the liquid level information.
Optionally, in combination with the embodiment shown in fig. 3, as shown in fig. 4, in some embodiments of the present invention, the apparatus further includes: a tester 401;
the tester 401 is used for recording a relation curve of the service time and the liquid level height of a new storage battery through a storage battery discharge test before the new storage battery is added or replaced to the battery pack, and generating a test curve;
the processor 302 is further configured to obtain and save a test curve of the battery when a new battery is added or replaced to the battery pack.
Alternatively, in conjunction with the embodiment shown in fig. 3, in some embodiments of the invention,
a processor 302, further configured to determine a current usage time point in the test curve corresponding to the liquid level height;
a processor 302, further configured to determine a safe use time point in the test curve corresponding to the liquid level safety threshold;
the processor 302 is further configured to obtain the remaining usage time of the storage battery according to the current usage time point and the safe usage time point.
Alternatively, in conjunction with the embodiment shown in fig. 3, in some embodiments of the invention,
the processor 302 is further configured to determine the water replenishing time of the storage battery according to the remaining service time;
the processor 302 is further configured to divide the storage battery groups into at least two storage battery groups according to a preset time cycle rule according to the water replenishing time of each storage battery;
the processor 302 is further configured to use the water replenishing time closest to the current time in each storage battery group as the group water replenishing time;
the processor 302 is further configured to obtain a water replenishing cycle of the storage battery group according to the group water replenishing time;
the processor 302 is further configured to obtain a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing cycle of the storage battery group.
Optionally, in combination with the embodiment shown in fig. 3, as shown in fig. 5, in some embodiments of the present invention, the apparatus further includes: an information display 501;
and an information display 501 for displaying the warning information and the water replenishing plan.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. An ultrasound-based battery pack management method, comprising:
monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain liquid level information of the storage batteries;
determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold value or not according to the liquid level information;
if the liquid level is lower than the liquid level safety threshold, generating early warning information;
if the liquid level safety threshold value is not lower than the liquid level safety threshold value, obtaining a test curve of the storage battery, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
calculating the remaining service time of the storage battery according to the test curve and the liquid level height;
and formulating a water replenishing plan of the battery pack according to the remaining service life.
2. The method of claim 1, further comprising:
before a new storage battery is added or replaced to the battery pack, recording a relation curve of the service time and the liquid level height of the new storage battery through a storage battery discharge test, and generating a test curve;
and when the new storage battery is added or replaced to the battery pack, acquiring and storing a test curve of the storage battery.
3. The method of claim 1, wherein calculating the remaining usage time of the battery based on the test curve and the liquid level height comprises:
determining a current use time point corresponding to the liquid level height in the test curve;
determining a safe use time point corresponding to the liquid level safety threshold value in the test curve;
and obtaining the remaining service time of the storage battery according to the current service time point and the safe service time point.
4. The method of claim 3, wherein said planning a water refill plan for the battery pack based on the remaining usage time comprises:
determining the water replenishing time of the storage battery according to the residual service time;
dividing the storage batteries into at least two storage battery groups according to the water replenishing time of each storage battery and a preset time cycle rule;
taking the water replenishing time closest to the current time in each storage battery group as the group water replenishing time;
obtaining a water replenishing period of the storage battery group according to the group water replenishing time;
and obtaining a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing period of the storage battery group.
5. The method according to any one of claims 1-4, further comprising:
and displaying the early warning information and the water replenishing plan.
6. An ultrasound-based battery pack management apparatus, comprising:
the ultrasonic detector is used for monitoring the liquid level of each storage battery in the battery pack through ultrasonic waves to obtain the liquid level information of the storage batteries;
the processor is used for determining whether the liquid level height of the corresponding storage battery is lower than a liquid level safety threshold value or not according to the liquid level information;
the processor is further used for generating early warning information when the liquid level height is lower than the liquid level safety threshold;
the processor is further used for acquiring a test curve of the storage battery when the liquid level height is not lower than the liquid level safety threshold, wherein the test curve is a relation curve of the service time of the storage battery and the liquid level height;
the processor is further used for calculating the remaining service time of the storage battery according to the test curve and the liquid level height;
the processor is further used for making a water replenishing plan of the battery pack according to the remaining service life.
7. The apparatus of claim 6, further comprising: testing device
The tester is used for recording a relation curve of the service time and the liquid level height of a new storage battery through a storage battery discharge test before the new storage battery is added or replaced to the battery pack, and generating a test curve;
the processor is further configured to obtain and save a test curve of the storage battery when the new storage battery is added or replaced to the battery pack.
8. The apparatus of claim 6,
the processor is further used for determining a current use time point corresponding to the liquid level height in the test curve;
the processor is further used for determining a safe use time point corresponding to the liquid level safety threshold value in the test curve;
and the processor is further used for obtaining the residual service time of the storage battery according to the current service time point and the safe service time point.
9. The apparatus of claim 8,
the processor is further used for determining the water replenishing time of the storage battery according to the residual service time;
the processor is also used for dividing the storage batteries into at least two storage battery groups according to the water replenishing time of each storage battery and a preset time cycle rule;
the processor is also used for taking the water replenishing time which is closest to the current time in each storage battery group as the group water replenishing time;
the processor is further used for obtaining a water replenishing cycle of the storage battery group according to the group water replenishing time;
and the processor is further used for obtaining a water replenishing plan of the battery pack according to the water replenishing time of the storage battery and the water replenishing period of the storage battery group.
10. The apparatus according to any one of claims 6-9, further comprising: an information display;
and the information display is used for displaying the early warning information and the water replenishing plan.
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