CN113671379A - Method and medium for determining remaining battery life and movie and television lamp equipment - Google Patents
Method and medium for determining remaining battery life and movie and television lamp equipment Download PDFInfo
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- CN113671379A CN113671379A CN202110963484.XA CN202110963484A CN113671379A CN 113671379 A CN113671379 A CN 113671379A CN 202110963484 A CN202110963484 A CN 202110963484A CN 113671379 A CN113671379 A CN 113671379A
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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]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
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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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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
- G03B7/26—Power supplies; Circuitry or arrangement to switch on the power source; Circuitry to check the power source voltage
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Abstract
The embodiment of the application is suitable for the technical field of batteries, and provides a method and a medium for determining the remaining service life of a battery and a movie and television lamp device, wherein the method comprises the following steps: determining the battery type of the battery, wherein the battery type is corresponding to a plurality of reference discharge curves; counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power; determining a target reference discharge curve from the plurality of reference discharge curves according to the output power and the actual interval time; based on the target reference discharge curve, the remaining usage time of the battery is determined. Through the method, the remaining service time of the battery can be accurately determined.
Description
Technical Field
The application belongs to the technical field of batteries, and particularly relates to a method and medium for determining the remaining service time of a battery and a movie and television lamp device.
Background
The remaining use time of the battery in the device is displayed on the display screen, so that the user can plan work or life appropriately according to the remaining use time of the battery.
At present, schemes for displaying remaining time of electronic products are directed at built-in small-capacity batteries, so that the schemes are relatively simple and accurate; for devices mounted with large capacity batteries or plug-and-play type batteries, there is no good solution when displaying the remaining usage time; or, the remaining usage time displayed by some schemes does not match the reality, which affects the planning of the user.
Disclosure of Invention
In view of the above, embodiments of the present application provide a method, medium, and movie and television lamp device for determining a remaining usage time of a battery, so as to solve a problem that a device mounted with a large-capacity battery or using a plug-and-play type battery cannot accurately display the remaining usage time.
A first aspect of an embodiment of the present application provides a method for determining a remaining usage time of a battery, including:
determining the battery type of the battery, wherein the battery type is corresponding to a plurality of reference discharge curves;
counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power;
determining a target reference discharge curve from the plurality of reference discharge curves according to the output power and the actual interval time;
based on the target reference discharge curve, the remaining usage time of the battery is determined.
A second aspect of an embodiment of the present application provides an apparatus for determining a remaining usage time of a battery, including:
the battery type determining module is used for determining the battery type of the battery, and the battery type is corresponding to a plurality of reference discharging curves;
the actual interval time counting module is used for counting the actual interval time required by the voltage change of the battery under the current output power to reach a preset threshold value;
the target reference discharge curve determining module is used for determining a target reference discharge curve from the multiple reference discharge curves according to the output power and the actual interval time;
and the residual using time determining module is used for determining the residual using time of the battery based on the target reference discharging curve.
A third aspect of embodiments of the present application provides a movie and television lamp device, where the movie and television lamp device has a display module and a power interface, and when the power interface is connected to an external battery, the display module is configured to display remaining usage time of the external battery, and the remaining usage time of the external battery is determined by the movie and television lamp device by performing the method for determining remaining usage time of the battery according to the first aspect.
A fourth aspect of embodiments of the present application provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the computer program to implement the method for determining the remaining battery life as described in the first aspect.
A fifth aspect of embodiments of the present application provides a computer-readable storage medium, in which a computer program is stored, and the computer program, when executed by a processor, implements the method for determining the remaining usage time of a battery as in the first aspect.
A sixth aspect of embodiments of the present application provides a computer program product, which, when run on a terminal device, causes the terminal device to execute the method for determining a remaining battery usage time of the first aspect.
Compared with the prior art, the embodiment of the application has the following advantages:
according to the embodiment of the application, for each battery type, a plurality of reference discharge curves under different conditions are measured in advance; when calculating the remaining service time, firstly determining the battery type; then selecting a target reference discharge curve corresponding to the battery from a plurality of reference discharge curves corresponding to the battery type according to the actual interval time required for the voltage change of the battery under the current output power to reach a preset threshold; using this curve, the remaining usage time of the battery can be determined. This method is not only suitable for devices having a built-in battery, but also can accurately calculate the remaining usage time of the battery for devices having a large capacity battery mounted thereon or using a plug-and-play type battery.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the embodiments or the description of the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 is a flow chart illustrating steps of a method for determining a remaining battery life according to one embodiment of the present application;
FIG. 2 is a flow chart illustrating steps of another method for determining remaining battery life according to one embodiment of the present application;
FIG. 3 is a diagram illustrating a data structure of a reference discharge curve according to an embodiment of the present application;
FIG. 4 is a flowchart illustrating steps of a method for determining remaining battery life according to an embodiment of the present application;
FIG. 5 is a flowchart illustrating steps of a method for determining remaining battery life according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an apparatus for determining remaining battery life according to one embodiment of the present application;
fig. 7 is a schematic diagram of a terminal device according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The technical solution of the present application will be described below by way of specific examples.
Referring to fig. 1, a schematic flow chart illustrating steps of a method for determining a remaining battery life according to an embodiment of the present application is shown, which may specifically include the following steps:
and S101, determining the battery type of the battery, wherein the battery type is corresponding to a plurality of reference discharge curves.
The execution subject of the embodiment is a terminal device, such as a video device, a video lamp device, and the like, and the terminal device may use a built-in battery, a mounted battery, or a plug-and-play battery.
The battery type may be obtained by dividing the battery according to a preset standard. For example, the battery types may be divided using voltage, capacity, and the like. For example, a battery having a voltage in the range of 12V to 16.8V can be counted as one type, and a battery having a voltage in the range of 24V to 33.6V can be counted as another type.
The reference discharge curve may reflect the discharge of the battery during use. For example, the horizontal axis of the discharge curve may be time, and the vertical axis may be voltage, reflecting the relationship between the voltage change and the battery usage time.
The discharge curve of a battery has many factors, such as power usage, battery capacity, and so on. In this embodiment, a plurality of reference discharge curves of the battery under different conditions may be measured in advance as a reference for calculating the remaining service time of the battery.
Specifically, the database may include a plurality of reference discharge curves measured in advance. After the battery type of the battery used by the equipment is determined, a plurality of reference discharge curves corresponding to the battery type are determined from the database according to the battery type.
And S102, counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power.
Specifically, when the device starts to be used, the current output power and voltage of the battery can be detected, and after the battery works for a period of time at the output power, the voltage of the battery can be changed; when the voltage change reaches a preset value, the actual interval time for the voltage change to reach the preset value can be determined.
Illustratively, when the device is powered on, the output power of the battery is 100W and the voltage is 2V. The battery was operated at 100W for a period of time, and when the voltage reached 1V, the actual interval from the start-up of the device to when the voltage change reached 1V was determined.
And S103, determining a target reference discharge curve from the plurality of reference discharge curves according to the output power and the actual interval time.
The target reference discharge curve is an actual discharge curve of the battery and can reflect the current use condition of the battery.
Specifically, one battery type corresponds to a plurality of reference discharge curves, and on the basis that the battery type is determined, a target reference discharge curve corresponding to the battery needs to be selected from the plurality of reference discharge curves corresponding to the battery type.
For each reference discharge curve, the time required for the voltage to change from the current voltage value to reach the preset threshold value under the current output power can be respectively determined; and comparing the time required by the voltage change corresponding to each reference discharge curve to reach a preset threshold with the actual interval time, determining a reference discharge curve matched with the actual interval time from the multiple reference discharge curves, and taking the reference discharge curve as a target reference discharge curve.
And S104, determining the remaining service time of the battery based on the target reference discharge curve.
Specifically, the remaining usage time of the battery can be determined according to the current voltage and the usage time corresponding to the voltage of the battery and the usage time of the battery.
In a possible implementation manner, the horizontal axis of the reference discharge curve is the service time of the battery, and the vertical axis is the voltage of the battery, so that the service time of the battery can be determined according to the horizontal axis of the reference discharge curve, and then the service time of the battery can be determined according to the current voltage of the battery; and subtracting the used time from the usable time to obtain the remaining service time of the battery.
For battery-mounted and plug-and-play type devices, the batteries used are not fixed; for small capacity devices with built-in batteries, the batteries are generally used for a fixed period of time. Therefore, the conventional method for calculating the remaining usage time of a device using a small-capacity battery cannot calculate the remaining usage time of a device using a mounted battery or a plug-and-play battery.
In the present embodiment, the remaining usage time of the battery is determined by determining the target reference discharge curve of the battery, and since the discharge curves of a plurality of types of batteries are measured in advance at different capacities and different powers, the device can find the target reference discharge curve of the battery to be used regardless of whether the device uses the same battery all the time, thereby calculating the remaining usage time of the battery using the target reference discharge curve.
Referring to fig. 2, a schematic flow chart illustrating steps of another method for determining remaining battery life according to an embodiment of the present application is shown, which may specifically include the following steps:
s201, determining the battery type of the battery, wherein the battery type is corresponding to a plurality of reference discharge curves.
Specifically, the execution main body of the embodiment is a terminal device, and the terminal device may have a battery built therein, may mount the battery, and may also use a plug-and-play type battery.
Specifically, when the battery type is determined, the determination can be made by determining the voltage and power of the battery; for batteries with battery labels, the battery type can also be determined by directly reading the data in the battery.
The standard discharge curve is used for selecting specific power points to test the discharge curve of batteries with different battery types and different capacities according to the actual use condition of a product, and is used as a calculation reference in an algorithm.
FIG. 3 is a diagram illustrating a data structure of a reference discharge curve according to an embodiment of the present application; referring to fig. 3, four elements of F1, F2, F3, and F4 may be included in the data structure, which represent the following meanings:
f1 is a battery type and is classified by voltage range, such as 12V-16.8V, 24V-33.6V; but the device cannot support cells with intersecting voltage ranges, such as 12V-16.8V and 15V-20V, at the same time, the algorithm cannot support both cells.
F2 selects the discharge curves of how many different capacity batteries for the same type of battery as the reference curve.
F3 selects the discharge curve of how many power points for a capacity battery as the reference curve.
F4 is the length of the data table of the reference curve and the voltage interval value corresponding to two adjacent data.
The upper few elements, F1-F4, make up the baseline table of the algorithm shown in figure 3,
in the present embodiment, a corresponding one of the reference discharge curves may be determined on the condition that the values of the three factors, i.e., the battery type, the battery capacity, and the power usage, are determined. That is, F1-1, F2-1, and F3-1 can determine a unique reference discharge curve F4.
In one possible implementation, the meanings of F1, F2, and F3 in the structure of the data table may vary, for example, F1 may be used to refer to power, and F2 to refer to battery type.
S202, determining the initial default capacity of the battery according to the battery type.
In particular, when the device is started to be used, it is generally necessary to display the remaining use time on the screen. However, at the start of use, the capacity of the battery cannot be determined, and the actual reference discharge curve of the battery cannot be determined. However, based on the need to display the remaining usage time, the initial reference discharge curve of the battery used by the device needs to be determined when the device starts operating. To determine the initial reference discharge curve, a corresponding one of the capacities for the battery type may be selected as an initial default capacity of the battery.
Specifically, the initial default capacity may be an intermediate value of a plurality of capacities corresponding to the battery type. Although the initial reference discharge curve of the battery determined by the initial default capacity is not necessarily the same as the actual reference discharge curve of the battery, the difference from the actual reference discharge curve is minimized by selecting the intermediate capacity as the initial reference discharge curve determined by the initial default capacity.
In the present embodiment, it is detected that the values of F1 and F3 are definite, but the value of F2 is uncertain, so that the corresponding reference discharge curve cannot be determined. At this time, one value among the values of F2 is selected as a default value, and then an initial reference discharge curve is determined.
And S203, determining an initial reference discharge curve of the battery from the plurality of reference discharge curves according to the initial default capacity and the output power.
Specifically, according to the current output power, the battery type and the initial default capacity of the battery, the initial reference discharge curve of the battery can be determined from the corresponding reference discharge curves.
And S204, calculating the initial remaining service time of the battery according to the initial reference discharge curve.
Specifically, after the initial reference discharge curve is determined, an initial remaining usage time may be determined using the initial reference discharge curve and displayed on a display screen of the terminal device.
In a possible implementation manner, the horizontal axis of the initial reference discharge curve is the service time of the battery, and the vertical axis is the voltage of the battery, so that the service time of the battery can be determined according to the horizontal axis of the initial reference discharge curve, and then the service time of the battery can be determined according to the current voltage of the battery; and subtracting the used time from the usable time to obtain the initial remaining service time of the battery.
And S205, counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power.
Specifically, the output power and the voltage of the current battery may be detected in real time, and then, at the current output power, it is determined that the voltage of the battery changes from the current voltage to reach the preset threshold value for the actual interval time.
Generally, the voltage of a battery used by a terminal device is gradually reduced in the working process of the device, and the time for the voltage change of different batteries to reach a preset threshold is different, so that the actual interval time is counted to determine an actual reference discharge curve corresponding to the battery.
And S206, determining a target reference discharge curve from the plurality of reference discharge curves according to the output power and the actual interval time.
Specifically, for each reference discharge curve, the time required for the voltage to change from the current voltage value to reach the preset threshold under the current output power can be respectively determined; and comparing the time required by the voltage change corresponding to each reference discharge curve to reach a preset threshold with the actual interval time, determining a reference discharge curve matched with the actual interval time from the multiple reference discharge curves, and taking the reference discharge curve as a target reference discharge curve.
And S207, determining the remaining service time of the battery based on the target reference discharge curve.
Specifically, in one possible implementation manner, the horizontal axis of the reference discharge curve is the service time of the battery, and the vertical axis is the voltage of the battery, so that the service time of the battery can be determined according to the horizontal axis of the reference discharge curve, and then the service time of the battery can be determined according to the current voltage of the battery; and subtracting the used time from the usable time to obtain the remaining service time of the battery.
Specifically, a target reference discharge curve is determined, which corresponds to determining the actual capacity of the battery. The output power of the battery may vary during use of the device. For example, when the brightness of the display screen of the device is adjusted to be high, the output power of the device is increased, and at this time, the target reference discharge curve of the device is changed. At this point, the target reference discharge curve of the device needs to be re-determined. At this time, a new target reference discharge curve can be quickly determined according to the current output power, the battery type and the actual capacity of the battery, and then the calculation of the remaining use time is carried out by adopting the new target reference discharge curve.
After the equipment is mounted or plugged with a battery to work, the remaining service time can be displayed on a display screen, the remaining service time is gradually decreased, when the equipment identifies the discharge curve of the current battery, the remaining service time can be calibrated once, and the display time has certain jump; thereafter, the time will be progressively reduced and the time will be more and more accurate without the power change exceeding the threshold. When the remaining usage time is less than 10 minutes, the remaining usage time icon on the display screen may blink at a frequency of 1HZ to alert the user that the remaining time is short and that the battery is ready to be replaced.
In the embodiment of the application, a plurality of reference discharge curves obtained by measurement in advance are used as a reference for determining the remaining service time of the battery. When the device begins to be used, a default capacity of the battery can be selected to determine an initial reference discharge curve of the battery, so that the remaining use time can be displayed from the start of the device. In the working process of the equipment, the target reference discharge curve is determined according to the voltage change interval time, which is equivalent to the determination of the actual capacity of the battery, so that the new reference discharge curve of the battery can be rapidly determined when the output power changes, and the residual service time is convenient to recalculate.
The method for determining the remaining service time of the battery provided by the embodiment can conveniently determine the remaining service time of equipment adopting a mounted battery or a plug-and-play battery, and is convenient for a user to do proper planning work or life according to the remaining service time of the battery prompted by a display screen.
FIG. 4 is a flowchart illustrating steps of a method for determining remaining battery life according to an embodiment of the present application; the method specifically comprises the following steps:
s401, detecting the current output power and the current voltage value of the battery.
The execution main body of the embodiment is a terminal device, and the terminal device may be internally provided with a battery, may be mounted with the battery, and may also use a plug-and-play type battery.
In particular, the output power, current and voltage of the battery in the device may be detected in real time to determine the current operating state of the battery.
And S402, determining the battery type of the battery according to the output power and the voltage value.
Specifically, the battery type may be divided according to the output power and the voltage, and the battery type of the battery is determined according to a division manner of the battery type adopted in advance.
For example, the battery type is divided according to voltage, and at this time, the battery type of the battery may be determined according to the detected voltage value.
And S403, determining the initial default capacity of the battery according to the battery type.
And S404, determining an initial reference discharge curve of the battery from the plurality of reference discharge curves according to the initial default capacity and the output power.
And S405, calculating the initial remaining service time of the battery according to the initial reference discharge curve.
Steps S403 to S05 are similar to steps S201 to S203, and may be referred to each other, which are not described herein.
And S406, counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power.
Step S406 is similar to step S205 and can refer to each other, which is not described herein.
And S407, determining a plurality of reference discharge curves to be screened corresponding to the output power in the plurality of reference discharge curves.
Specifically, taking the data table structure in fig. 3 as an example, for a determined battery type, for example, the determined battery type is F1-1, at this time, a plurality of reference discharge curves may be corresponded. A plurality of F2-n under F1-1, wherein n is a positive integer; a plurality of F3-n are correspondingly arranged under each F2-n; there is one F4 under each F3-n.
In this embodiment, the output power of the battery may be detected, which is equivalent to that the power point corresponding to F3-n has been determined, for example, if the power point is determined to be power point 1, then the power point is F3-1; however, it is difficult to detect the capacity of the battery, which corresponds to the failure to determine the value of F2-n, and then each of F2-n under F1-1 corresponds to a power point 1: f3-1; corresponding to how many capacities F2-n correspond in total, how many reference discharge curves to be screened are determined in this step.
And S408, respectively determining a plurality of theoretical interval time required by the voltage value change to reach a preset threshold value in each reference discharge curve to be screened.
The theoretical interval time is the time required for the voltage to change in the same way as the battery used in the terminal equipment in the plurality of reference discharge curves to be screened.
Specifically, in step S406, the time when the voltage variation of the battery used by the terminal device reaches the preset threshold value when the device is powered on is counted. For example, when the voltage of the terminal device is a first voltage, the voltage after the change of the voltage by the preset threshold value is a second voltage, and the time required for the terminal device to change from the first voltage to the second voltage is the actual interval time.
In each reference discharge curve to be screened, the time required for the voltage to change from the first voltage to the second voltage is a theoretical interval time.
S409, the theoretical interval time closest to the actual interval time is set as the target interval time.
Specifically, each theoretical interval time is compared with the actual interval time, and the theoretical interval time closest to the actual interval time is used as the target interval time.
And S410, determining a reference discharge curve corresponding to the target interval time as a target reference discharge curve of the battery.
Specifically, the target interval time is the closest to the actual interval time, that is, the discharge curve of the battery is the closest to the reference discharge curve determined by the target interval time, so the reference discharge curve corresponding to the target interval time can be used as the reference discharge curve of the battery.
Of course, if there is a way to directly measure the battery capacity, the target reference discharge curve of the battery may be directly determined from a plurality of reference discharge curves stored in advance directly according to the battery type, the battery capacity, and the output power.
And S411, determining the remaining service time of the battery based on the target reference discharge curve.
Specifically, after the target reference discharge curve is determined, the remaining usage time of the battery may be determined from the target reference discharge curve according to the point of the target reference discharge curve corresponding to the current operating state of the battery.
And S412, determining the ratio of the target interval time to the actual interval time.
Specifically, when the measurement reference discharge curve is implemented, the usage environment of the battery may be different from the actual usage environment, and thus, the target reference discharge curve of the battery has an error from the actual discharge curve.
The error between the target reference discharge curve and the actual discharge curve can be measured by the ratio of the target interval time to the actual interval time.
The ratio of the target interval time to the actual interval time may be monitored at times and used to correct the calculated remaining usage time.
And S413, adjusting the residual service time according to the ratio.
Specifically, the remaining usage time obtained from the target reference discharge curve is multiplied by the ratio to obtain the actual remaining usage time.
S414, the remaining usage time is displayed.
In particular, the actual remaining usage time is displayed on the display screen of the device.
In a possible implementation manner, when the remaining usage time is displayed, a minute may be used as a time unit, and when the output power is not changed during the time display, the displayed remaining usage time does not jump, so that the usage experience of the user may be enhanced.
For a device using a single battery, the remaining service time corresponding to the battery can be directly displayed on a display screen of the device.
For a device using multiple batteries, the multiple batteries can be decomposed into single battery modules independently, i.e., the discharge time of each battery module is calculated independently, so that the number of battery channels on which the device can be mounted is theoretically not limited to the upper limit in the method in this embodiment. In this embodiment, each battery module is only one branch, and the remaining usage time of this battery module at the current power point can be independently calculated, and a plurality of battery modules have a plurality of remaining usage times, from which one remaining usage time can be selected as the remaining usage time of the device. Generally, the selection principle is to select the remaining time of the device as the remaining time of the device, i.e. the remaining time with the least time. Of course, the selection may be made in other ways.
In addition, when the remaining service time of the battery is 0, the device can be automatically shut down; the device may set an absolute shutdown voltage, and automatically shut down the device when the voltage value is less than or equal to the absolute shutdown voltage.
In addition, the device may further include a relative shutdown voltage, which is a minimum operating voltage of the battery set by the product.
In this embodiment, after the target reference discharge curve of the battery is determined, the calculated remaining service life is corrected according to the ratio of the time interval to the target time interval, so that the calculated remaining service life is more accurate.
It should be noted that, the sequence numbers of the steps in the foregoing embodiments do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of the process, and should not constitute any limitation on the implementation process of the embodiments of the present application.
FIG. 5 is a flowchart illustrating steps of a method for determining remaining battery life according to an embodiment of the present application; referring to fig. 5, when the device is powered on and started up, the current output power Pc and the current input voltage Va of the device are detected; then determining a reference discharge curve L1 of the default battery according to the current output power Pc of the equipment, the current output voltage Va and the capacity of the default battery; calculating initial remaining time Tr1 according to the current output power Pc of the equipment, the current output voltage Va and a reference discharge curve L1 of the default battery; tr1 is displayed on the display screen of the device in minutes.
The device keeps discharging continuously at the current output power Pc, dropping the battery voltage from Va to Vb, e.g. Va-Vb = 0.5V; the age Tu of the battery voltage dropping from Va to Vb is recorded.
Respectively substituting reference curves (L1, L2 … Ln) of batteries with different capacities according to the output power Pc, the voltage Va and the voltage Vb, and calculating the time (T1, T2 … Tn) corresponding to the current condition in the different reference curves; the time Tu is compared with the time T1 and the time T2 … Tn, respectively, and the reference discharge curve Lu corresponding to the time closest to the time Tu is selected as a curve for subsequent reference, and the ratio D of the actual use time Tu to the curve theoretical time is calculated.
Calculating the calibrated residual service time Tr2 according to the voltage Vb, the output power Pc, the curve Lu and the proportional value D; the time Tr2 (unit minute) is displayed on the display screen.
During the operation of the device, the voltage value can be continuously detected, and when the voltage is lower than the lower limit voltage or the remaining service time is 0, the device is shut down.
When the voltage is not lower than the lower limit voltage and the residual service time is not 0, continuously detecting the voltage and the power of the equipment, if the voltage and the power do not change rapidly, continuously discharging the battery, recording the actual discharging time of the battery, simultaneously calculating theoretical time according to a reference discharging curve, and updating the value of the proportional value D according to the two times; the remaining battery life is calculated, the time is converted into minutes in seconds, and the displayed value of the minutes is not jumpable in order to ensure the stability of the displayed time, so that the time is not necessarily 60 seconds per minute. When the voltage rapid change or the power rapid change exceeds a limit value, calculating the remaining service time according to the current voltage and a reference discharge curve; after the voltage drops for a period of voltage, the battery starts to enter a time calibration process after reaching a stable state.
In the embodiment of the present application, a plurality of reference discharge curves measured in advance may be stored in the device. When the device is connected to a battery for use, the battery type of the current battery can be identified by detecting the voltage and the power of the current battery, but the discharge curve of the battery cannot be identified, so that when the device is just powered on to work, the device cannot know the specific capacity condition of the current battery, namely the discharge curve cannot be determined; therefore, the algorithm defaults to selecting the discharge curve of the intermediate capacity as the initial reference discharge curve, and an initial remaining usage time T1 is calculated.
After the power of the equipment continuously outputs stable power for a period of time, an actual discharge curve corresponding to the voltage and power point of the current battery can be obtained, the actual discharge curve is compared with a reference discharge curve of the same type of batteries with different capacities at the voltage and power point, and a reference discharge curve close to the actual discharge curve is selected as a subsequent reference discharge curve of the current battery. In conclusion, by the scheme, the relatively accurate residual discharge time T2 of the current battery under the current power can be obtained.
After the discharge curve of the current battery is determined, the subsequent battery discharge time calculation is carried out in real time by taking the discharge curve group of the reference battery corresponding to the determined discharge curve as a reference, and in order to ensure that the time is more accurate and the display time is not jumped when the electric quantity is less during the time calculation, the time parameter is properly adjusted, namely, the number of seconds corresponding to one minute in the previous period is not necessarily 60 seconds. Thus, after the device is powered on, the discharge time T3 is steadily reduced except for the time jump when the discharge curve or output power change is determined (the power jump is larger than the threshold value, such as 2W).
Referring to fig. 6, a schematic diagram of an apparatus for determining a remaining usage time of a battery according to an embodiment of the present application is shown, and may specifically include a battery type determining module 601, an actual interval time counting module 602, a target reference discharge curve determining module 603, and a remaining usage time determining module 604, where:
the battery type determining module 601 is configured to determine a battery type of a battery, where the battery type has a plurality of reference discharge curves;
an actual interval time counting module 602, configured to count an actual interval time required for a voltage change of the battery to reach a preset threshold under the current output power;
a target reference discharge curve determining module 603, configured to determine a target reference discharge curve from the multiple reference discharge curves according to the output power and the actual interval time;
a remaining usage time determination module 604 for determining a remaining usage time of the battery based on the target reference discharge curve.
The battery type determination module 601 includes:
the detection submodule is used for detecting the current output power and the current voltage value of the battery;
and the battery type determining submodule is used for determining the battery type of the battery according to the output power and the voltage value.
The above apparatus for determining remaining battery life further comprises:
the initial default capacity determining module is used for determining the initial default capacity of the battery according to the type of the battery;
the initial reference discharge curve determining module is used for determining an initial reference discharge curve of the battery from the plurality of reference discharge curves according to the initial default capacity and the output power;
and the initial remaining use time calculation module is used for calculating the initial remaining use time of the battery according to the initial reference discharge curve.
The remaining usage time determining module 604 includes:
the standard discharge curve determination submodule to be screened is used for determining a plurality of standard discharge curves to be screened corresponding to the output power in the plurality of standard discharge curves;
the theoretical interval time determining submodule is used for respectively determining a plurality of theoretical interval times required by the voltage value change reaching a preset threshold value in each reference discharge curve to be screened;
the target interval time determining submodule is used for taking the theoretical interval time closest to the actual interval time as the target interval time;
and the target reference discharge curve submodule is used for determining a reference discharge curve corresponding to the target interval time as a target reference discharge curve of the battery.
The remaining usage time determining module 604 further includes:
the ratio determining submodule is used for determining the ratio of the target interval time to the actual interval time;
and the adjusting submodule is used for adjusting the residual service time according to the ratio.
The above apparatus for determining remaining battery life further comprises:
and the display module is used for displaying the remaining service time.
In an apparatus for determining remaining usage time of a battery, the number of the battery comprising a plurality of batteries, the apparatus further comprising:
the calculation module is used for calculating the remaining service time corresponding to the plurality of batteries respectively;
and the minimum value display module is used for displaying the minimum value in the remaining time corresponding to the plurality of batteries.
For the apparatus embodiment, since it is substantially similar to the method embodiment, it is described relatively simply, and reference may be made to the description of the method embodiment section for relevant points.
Referring to fig. 7, a schematic diagram of a terminal device according to an embodiment of the present application is shown. As shown in fig. 7, the terminal device 7 of this embodiment includes: at least one processor 70 (only one shown in fig. 7), a memory 71, and a computer program 72 stored in the memory 71 and executable on the at least one processor 70, the processor 70 implementing the steps in any of the various method embodiments described above when executing the computer program 72.
The terminal device 7 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 70, a memory 71. Those skilled in the art will appreciate that fig. 7 is only an example of the terminal device 7, and does not constitute a limitation to the terminal device 7, and may include more or less components than those shown, or combine some components, or different components, for example, and may further include input/output devices, network access devices, and the like.
The processor 70 may be a Central Processing Unit (CPU), and the processor 70 may be other general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may in some embodiments be an internal storage unit of the terminal device 7, such as a hard disk or a memory of the terminal device 7. In other embodiments, the memory 71 may also be an external storage device of the terminal device 7, such as a plug-in hard disk provided on the terminal device 7, a smart card (SMC), a Secure Digital (SD) card, a flash card (FlashCard), and so on. Further, the memory 71 may also include both an internal storage unit and an external storage device of the terminal device 7. The memory 71 is used for storing an operating system, an application program, a BootLoader (BootLoader), data, and other programs, such as program codes of the computer program. The memory 71 may also be used to temporarily store data that has been output or is to be output.
The embodiment of the application also provides movie and television lamp equipment, movie and television lamp equipment has display module and power source, works as when power source is connected with external battery, display module is used for showing external battery's remaining live time, external battery's remaining live time by movie and television lamp equipment is through carrying out aforementioned each embodiment the definite battery remaining live time method confirm.
The embodiment of the application also discloses a computer readable storage medium, which stores a computer program, and the computer program is used for realizing the method for determining the remaining service time of the battery according to the previous embodiments when being executed by a processor.
The embodiment of the application also discloses a computer program product, and when the computer program product runs on the terminal device, the terminal device is enabled to execute the method for determining the remaining service time of the battery in the foregoing embodiments.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A method of determining remaining battery life, comprising:
determining the battery type of a battery, wherein the battery type corresponds to a plurality of reference discharge curves;
counting the actual interval time required by the voltage change of the battery to reach a preset threshold value under the current output power;
determining a target reference discharge curve from the plurality of reference discharge curves according to the output power and the actual interval time;
determining a remaining usage time of the battery based on the target reference discharge curve.
2. The method of claim 1, wherein the determining the battery type of the battery comprises:
detecting the current output power and the current voltage value of the battery;
and determining the battery type of the battery according to the output power and the voltage value.
3. The method of claim 1 or 2, further comprising, after determining the battery type of the battery:
determining an initial default capacity of the battery according to the battery type;
determining an initial reference discharge curve of the battery from the plurality of reference discharge curves according to the initial default capacity and the output power;
and calculating the initial remaining service time of the battery according to the initial reference discharge curve.
4. The method of claim 2, wherein determining an actual reference discharge curve for the battery from the plurality of reference discharge curves based on the output power and the actual interval time comprises:
determining a plurality of reference discharge curves to be screened corresponding to the output power in the plurality of reference discharge curves;
respectively determining a plurality of theoretical interval time required by the voltage value change reaching a preset threshold value in each reference discharge curve to be screened;
taking a theoretical interval time closest to the actual interval time as a target interval time;
and determining a reference discharge curve corresponding to the target interval time as a target reference discharge curve of the battery.
5. The method of claim 4, further comprising:
determining a ratio of the target interval time to the actual interval time;
and adjusting the residual service time according to the ratio.
6. The method of any one of claims 1, 2, 4, or 5, further comprising, after determining the remaining usage time of the battery based on the target reference discharge curve:
and displaying the remaining use time.
7. The method of claim 6, wherein the number of batteries comprises a plurality, and wherein displaying the remaining usage time comprises:
respectively calculating the residual service time corresponding to the plurality of batteries;
and displaying the minimum value of the remaining time corresponding to the plurality of batteries.
8. The method of claim 1, further comprising:
and when the output power is changed, re-determining the target reference discharge curve of the battery according to the changed output power.
9. A movie lamp device, characterized in that the movie lamp device is provided with a display module and a power interface, when the power interface is connected with an external battery, the display module is used for displaying the remaining service time of the external battery, and the remaining service time of the external battery is determined by the movie lamp device by executing the method for determining the remaining service time of the battery according to any one of claims 1-8.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the method of determining a remaining battery life according to any one of claims 1 to 8.
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