CN107863808B - Charging control method and device for mobile terminal - Google Patents
Charging control method and device for mobile terminal Download PDFInfo
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- CN107863808B CN107863808B CN201711315758.4A CN201711315758A CN107863808B CN 107863808 B CN107863808 B CN 107863808B CN 201711315758 A CN201711315758 A CN 201711315758A CN 107863808 B CN107863808 B CN 107863808B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
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Abstract
The invention discloses a charging control method and a charging control device for a mobile terminal, wherein the method comprises the following steps: receiving a power supply charging instruction and acquiring an initial input current value; when the initial input current value is determined to be larger than the first current threshold value, adjusting the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value; and charging by using the target current threshold value. Through the technical scheme, the mobile terminal can automatically adjust the current threshold value according to the input current, and charges the mobile terminal with the maximum power according to the adjusted current threshold value, so that the charging speed is increased, and the mobile terminal is convenient for a user to use.
Description
Technical Field
The invention belongs to the technical field of charging management, and particularly relates to a charging control method and device for a mobile terminal.
Background
At present, some mobile terminals are internally provided with input current limiting devices, and the input current of the mobile terminal during charging can be controlled through the input current limiting devices, so that the input current of the mobile terminal can be kept stable while the charger can charge the mobile terminal by using maximum power output.
However, for some early mobile terminal products, no input current limiting device was installed. If a standard power adapter for non-mobile devices is used by the early mobile terminal users or the USB wire resistance of the power adapter used by the users is large, the result of no charging is caused by an incorrect input current threshold value (ILIMIT) on the terminal device. Or the mobile terminal uses a small input current threshold value (ILIMIT) for charging, so that the charging is slow, the charging time is long, and the mobile terminal is inconvenient for users to use.
Disclosure of Invention
In view of the above, the present invention provides a charging control method and apparatus for a mobile terminal, and mainly aims to solve the problem that when a user uses a standard power adapter of a non-mobile device or a USB cable of the power adapter is very large, the charging is not performed or the charging is slow.
According to a first aspect of the present invention, there is provided a charging control method of a mobile terminal, the method comprising:
receiving a power supply charging instruction and acquiring an initial input current value;
when the initial input current value is determined to be larger than the first current threshold value, adjusting the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value;
and charging by using the target current threshold value.
According to a second aspect of the present invention, there is provided a charge control apparatus of a mobile terminal, the apparatus comprising:
the receiving unit is used for receiving a power supply charging instruction and acquiring an initial input current value;
the adjusting unit is used for adjusting the first current threshold value when the initial input current value is determined to be larger than the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value;
and the charging unit is used for charging by utilizing the target current threshold value.
According to a third aspect of the present invention, there is provided a memory having stored thereon a computer program which, when executed by a processor, implements the charging control method of a mobile terminal of the first aspect.
According to a fourth aspect of the present invention, there is provided a charge control apparatus of a mobile terminal, the apparatus comprising a storage device and a processor,
the storage device is used for storing a computer program;
the processor is configured to execute the computer program to implement the charging control method of the mobile terminal according to the first aspect.
By means of the technical scheme, the mobile terminal can automatically adjust the current threshold value according to the input current, and charges the mobile terminal with the maximum power according to the adjusted current threshold value, so that the charging speed is increased, and the mobile terminal is convenient to use by a user.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a flowchart of a charging control method of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a flowchart of a charging control method of a mobile terminal according to another embodiment of the present invention;
fig. 3 is a block diagram illustrating a configuration of a charging control apparatus of a mobile terminal according to an embodiment of the present invention;
fig. 4 is a schematic physical structure diagram of charging control of a mobile terminal according to an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the embodiment of the invention, when a user charges by using a power adapter not matched with the mobile terminal, the current threshold value can be adjusted according to the input current, then the adjusted current threshold value is used as the target current threshold value of the mobile terminal for charging, the whole input current is controlled to be charged at the maximum output power on the basis that the whole input current does not exceed the target current threshold value, and the charging time is shortened.
As shown in fig. 1, the charging control method of the mobile terminal of the embodiment includes the steps of:
And step 102, when the initial input current value is determined to be larger than the first current threshold value, adjusting the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value.
And 103, charging by using the target current threshold value.
In the above technical solution, the user may set the charging current threshold ILIMIT as a first current threshold (for example, 0.5A) in advance, and when the user uses a power adapter not equipped with a mobile terminal for charging, the charging current (i.e., the initial input current value) is determined first. When the charging current is smaller than or equal to a preset first current threshold value, the current is not processed, and the original state is directly kept for charging. When the charging current is larger than the preset first current threshold value, the first current threshold value is adjusted according to the initial input current value input during charging, the adjustment process can be one time or multiple times, and the power adapter can charge the mobile terminal with the maximum power until the mobile terminal is charged by utilizing the adjusted first current threshold value.
Through the technical scheme, the mobile terminal can automatically adjust the current threshold value according to the input current, and charges the mobile terminal with the maximum power according to the adjusted current threshold value, so that the charging speed is increased, and the mobile terminal is convenient for a user to use.
In a specific embodiment, step 102 specifically includes:
step 1021, when it is determined that the initial input current value is greater than the first current threshold value, performing temporary charging by using the first current threshold value, and waiting for a first predetermined time to obtain a first input current value corresponding to the first current threshold value.
In the above technical solution, first, when performing temporary charging by using the first current threshold, a first predetermined time (for example, 50ms) needs to be waited, and then when obtaining a current value of the first input current, the first predetermined time is a stabilization time of the entire charging loop when performing temporary charging by using the first current threshold.
Step 1022, a set value is added on the basis of the first current threshold value as a second current threshold value, the second current threshold value is used for temporary charging, a second predetermined time is waited, and a second input current value and a second input voltage value corresponding to the second current threshold value are obtained.
In the above technical solution, the set value may be 0.1A or 0.2A or other values, and may be set according to actual needs. The second preset time has the same function as the first preset time and can be the same as or different from the first preset time, and specific numerical values are set according to actual requirements.
In step 1023, when the first input current value, and/or the second input voltage value satisfies a predetermined condition, the first current threshold value is determined as the target current threshold value.
In the above technical solution, the predetermined conditions are conditions that the mobile terminal can be normally charged. And if each numerical value meets the preset condition, taking the first current threshold value as a target current threshold value for charging. If the second current threshold value is used for charging, the charging power for charging the mobile terminal battery is reduced, so that if the second current threshold value is used for charging, the predetermined condition proves that the previous value of the second current threshold value, namely the first current threshold value is the target current threshold value capable of ensuring that the charging is carried out at the maximum charging power.
In a specific embodiment, step 1023 specifically includes:
step 10231, determining whether the first input current value, and/or the second input voltage value satisfies the following predetermined conditions:
(1) the signs of the first and second input current values are reversed; or
(2) The second input current value is smaller than the set threshold current value, and the second current threshold value is larger than or equal to the set input current value; or
(3) The second input voltage value is less than or equal to the voltage threshold value.
If the determination result is yes, the process proceeds to step 10232, and if the determination result is no, the process proceeds to step 10233.
In step 10232, the first current threshold value is determined as the target current threshold value.
And step 10233, readjusting the first current threshold value until the obtained first input current value, and/or second input voltage value meet a predetermined condition, and taking the adjusted first current threshold value as a target current threshold value.
For the predetermined condition (1), if the signs of the first input current value and the second input current value are reversed, it is proved that the first input current value is positive and the second input current value is negative, which indicates that the current oscillates when charging is performed with the second current threshold value, so that the charging power is reduced. The second current threshold exceeds the current that the power adapter can provide, so can't use the second current threshold to charge, need to use the first current threshold before increasing the set point as the goal current threshold to charge.
For the predetermined condition (2), the second input current value may be less than 0.5A (set input current value), and the second current threshold value is greater than or equal to 2A (set threshold current value), and if the second current threshold values are both greater than or equal to 2A and smaller than 0.5A, the difference between the two values is large, which proves that the current oscillates at this time, and the charging cannot be performed using the second current threshold value. Therefore, it is necessary to perform charging using the first current threshold before increasing the set value as the target current threshold. Through a large number of experiments, the predetermined condition (2) can also be that the second input current value is less than 0.3A, and the second current threshold value is more than or equal to 1.5A; or the second input current value is less than 0.25A, and the second current threshold value is more than or equal to 1A.
For the predetermined condition (3), if the second input voltage value is smaller than the voltage threshold value (e.g., 4.4V) when the temporary charging is performed at the second current threshold value, although no current oscillation occurs, the second input voltage starts to decrease gradually, the charging power at this time is not the maximum charging power, and if the second current threshold value is increased again, the corresponding second threshold voltage may decrease to an under-voltage-locked (UVLO) voltage value, which may trigger voltage locking or trigger current oscillation. Therefore, it is necessary to perform charging using the first current threshold before increasing the set value as the target current threshold. The under-voltage locking voltage value is the minimum working voltage of a power chip of the power adapter, and if the under-voltage locking voltage value is lower than the under-voltage locking voltage value during charging, the power adapter is in a locking protection state and stops charging. The voltage threshold value is greater than the under-voltage-lockout voltage value.
If none of the three predetermined conditions is met, it is proved that the first current threshold is not the most suitable current threshold, and the first current threshold needs to be further adjusted.
The adjustment process of the first current threshold is as follows:
and increasing or decreasing the first current threshold value by at least one set value until the obtained first input current value, and/or second input voltage value meet a preset condition, and taking the adjusted first current threshold value as a target current threshold value.
In the above technical solution, after the first current threshold value is increased by a set value, 50ms is waited to obtain the first input current value at this time. And then, increasing the first current threshold value by two set values to be used as a second current threshold value, waiting for 50ms, acquiring a second input current value and a second input voltage value at the moment, judging whether the first input current value, the second input current value and the second input voltage value acquired at the moment meet the preset conditions, if not, repeating the steps until all the values can meet the preset conditions, and taking the first current threshold value adjusted at the last time as a target current threshold value, and when charging is carried out by utilizing the target current threshold value, charging can be carried out at the maximum power, so that the charging process is accelerated.
In a specific embodiment, before step 102, the method further includes:
and step 102 ', judging whether the initial input current value is larger than a first current threshold value, if so, entering the step 102, otherwise, entering the step 102'.
And step 102 ", re-acquiring the initial input current value at intervals of preset interval time, judging whether the re-acquired initial input current value is larger than a first current threshold value, if so, entering the step 102, otherwise, repeating the step.
Through the technical scheme, if the initial input current value is smaller than or equal to the first current threshold value, the initial current value is monitored, and once the initial input current value is found to be larger than the first current threshold value, the initial input current value is processed immediately to ensure that the current threshold value can be adjusted in time, so that the charging is carried out by utilizing the maximum charging power.
In an embodiment, step 1021 specifically includes:
step 10211, wait for a first predetermined time to obtain a first input voltage value.
Step 10212, determining whether the first input voltage value satisfies the voltage input condition, if yes, step 10213 is performed, otherwise step 10214 is performed.
Step 10213, modify the first current threshold to a final current threshold, and charge the battery by using the final current threshold, wherein the final current threshold is smaller than the first current threshold.
At step 10214, the current first input current value is recorded.
In the above technical solution, a first input voltage value when charging is performed by using a first current threshold value (for example, 0.5A) is obtained, and the first input voltage value is determined. Judging whether the first input voltage value is lower than a set threshold voltage (for example, 4.5V) of the mobile terminal, if so, setting a corresponding current threshold value as a final current threshold value (for example, 0.3A), and charging by using the final current threshold value; if not, recording the current first input current value, and adjusting the first current threshold value according to the scheme of the embodiment.
In a particular embodiment, step 10212 specifically includes:
and judging whether the first input voltage value is smaller than or equal to the under-voltage locking voltage value or not, stopping charging if the judgment result is yes, and continuously judging whether the first input voltage value is smaller than or equal to the voltage threshold value if the judgment result is not so.
As shown in fig. 2, in another embodiment of the present invention, a charging control method of a mobile terminal includes:
in step 201, power is turned on, and the default input current limit value (i.e., the first current threshold value) ILIMIT is 0.5A.
In step 203, monitoring whether the input current is in a large current stage, if so, entering step 204, otherwise, repeating the step.
In step 205, the present ILIMIT and charging current values, denoted ILIMIT _ temp1 (i.e., the first current threshold value) and ICHG _ temp1 (i.e., the first input current value), are recorded, the ILIMIT is added by a step (i.e., a set value), such as 0.1A or 0.2A, based on the current values, and the ILIMIT and charging current values, denoted ILIMIT _ temp2 (i.e., the second current threshold value) and ICHG _ temp2 (i.e., the second input current value), are recorded.
ICHG _ temp2 and ICHG _ temp1 sign reversal;
ICHG _ temp2<0.5A and ILIMIT _ temp2 ≥ 2A;
ICHG _ temp2<0.3A and ILIMIT _ temp2 ≥ 1.5A;
ICHG _ temp2<0.0.25A and ILIMIT _ temp2 is greater than or equal to 1A;
VBUS falls to a set threshold, which is higher than the UVLO threshold required by the system.
If yes, go to step 207, otherwise return to step 205.
In step 207, ILIMIT _ temp1 is charged as the final ILIMIT value.
Further, as a specific implementation of the method in fig. 1, this embodiment provides a charging control apparatus for a mobile terminal, as shown in fig. 3, the apparatus includes: a receiving unit 21, a regulating unit 22 and a charging unit 23.
The receiving unit 21 is used for receiving a power supply charging instruction and acquiring an initial input current value;
the adjusting unit 22 is configured to adjust the first current threshold when it is determined that the initial input current value is greater than the first current threshold, and use the adjusted first current threshold as the target current threshold;
and a charging unit 23 for charging with the target current threshold value.
In a specific embodiment, the adjusting unit 22 specifically includes:
the acquisition module is used for performing temporary charging by using the first current threshold value when the initial input current value is determined to be larger than the first current threshold value, waiting for first preset time and acquiring a first input current value corresponding to the first current threshold value;
the acquisition module is further configured to increase a set value on the basis of the first current threshold value to serve as a second current threshold value, perform temporary charging by using the second current threshold value, wait for a second predetermined time, and acquire a second input current value and a second input voltage value corresponding to the second current threshold value;
the determining module is used for determining that the first current threshold value is the target current threshold value when the first input current value and/or the second input voltage value meet the preset condition.
In a specific embodiment, the determining module is further configured to determine whether the first input current value, and/or the second input voltage value satisfy the following predetermined condition:
the signs of the first and second input current values are reversed; or the second current threshold value is smaller than the set threshold current value, and the second input current value is larger than or equal to the set input current value; or the second input voltage value is less than or equal to the voltage threshold value and greater than the under-voltage locking voltage value;
if so, determining the first current threshold value as a target current threshold value;
and if the judgment result is negative, readjusting the first current threshold value until the obtained first input current value, and/or second input voltage value meet the preset condition, and taking the adjusted first current threshold value as the target current threshold value.
In a specific embodiment, the determining module is further configured to increase or decrease the first current threshold value by at least one set value until the obtained first input current value, and/or the obtained second input voltage value satisfy a predetermined condition, and use the adjusted first current threshold value as the target current threshold value.
In a specific embodiment, the apparatus further comprises:
the comparison unit is used for comparing the initial input current value with a first current threshold value; when the initial input current value is smaller than or equal to the first current threshold value, the initial input current value is obtained again at intervals of preset intervals until the obtained initial input current value is larger than the first current threshold value.
In a specific embodiment, the obtaining module specifically includes:
the waiting module is used for waiting for first preset time to obtain a first input voltage value;
the judging module is used for judging whether the first input voltage value meets a voltage input condition or not; if so, modifying the first current threshold value into a final current threshold value, and taking the final current threshold value as a target current threshold value, wherein the final current threshold value is smaller than the first current threshold value; and if the judgment result is negative, recording the current first input current value.
In a specific embodiment, the determining module is further configured to determine whether the first input voltage value is less than or equal to the under-voltage-locked voltage value; if so, stopping charging; and if not, continuously judging whether the first input voltage value is less than or equal to the voltage threshold value.
Based on the method shown in fig. 1 and 2, correspondingly, the present embodiment further provides a memory, on which a computer program is stored, and the computer program is executed by a processor to implement the steps corresponding to the method shown in fig. 1 and 2.
Based on the methods shown in fig. 1 and 2, correspondingly, the present embodiment further provides a charging control apparatus of a mobile terminal, as shown in fig. 4, including a storage device 32 and a processor 31, where the storage device 32 and the processor 31 are both disposed on a bus 33.
A storage device 32 for storing a computer program;
a processor 31 for executing a computer program for implementing the corresponding steps of the method shown in fig. 1 and 2. Through the technical scheme of the invention, the mobile terminal can automatically adjust the current threshold value according to the magnitude of the input current, and the mobile terminal is charged with the maximum power according to the adjusted current threshold value, so that the charging speed is increased, and the use of a user is facilitated.
Through the above description of the embodiments, those skilled in the art will clearly understand that the present application can be implemented by hardware, and also by software plus a necessary general hardware platform. Based on such understanding, the technical solution of the present application may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.), and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the implementation scenarios of the present application.
Those skilled in the art will appreciate that the figures are merely schematic representations of one preferred implementation scenario and that the blocks or flow diagrams in the figures are not necessarily required to practice the present application.
Those skilled in the art will appreciate that the modules in the devices in the implementation scenario may be distributed in the devices in the implementation scenario according to the description of the implementation scenario, or may be located in one or more devices different from the present implementation scenario with corresponding changes. The modules of the implementation scenario may be combined into one module, or may be further split into a plurality of sub-modules.
The above application serial numbers are for description purposes only and do not represent the superiority or inferiority of the implementation scenarios.
The above disclosure is only a few specific implementation scenarios of the present application, but the present application is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present application.
Claims (9)
1. A charging control method of a mobile terminal, the method comprising:
receiving a power supply charging instruction and acquiring an initial input current value;
when the initial input current value is determined to be larger than a first current threshold value, adjusting the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value;
charging by using the target current threshold value;
when it is determined that the initial input current value is greater than the first current threshold value, adjusting the first current threshold value, and taking the adjusted first current threshold value as a target current threshold value, specifically including:
when the initial input current value is determined to be larger than the first current threshold value, carrying out temporary charging by using the first current threshold value, waiting for first preset time, and acquiring a first input current value corresponding to the first current threshold value;
adding a set value on the basis of the first current threshold value to serve as a second current threshold value, performing temporary charging by using the second current threshold value, waiting for second preset time, and acquiring a second input current value and a second input voltage value corresponding to the second current threshold value;
and when the first input current value, the second input current value and/or the second input voltage value meet a preset condition, determining that the first current threshold value is a target current threshold value.
2. The method according to claim 1, wherein the determining that the first current threshold value is a target current threshold value when the first input current value, and/or the second input voltage value satisfies a predetermined condition specifically comprises:
judging whether the first input current value, the second input current value and/or the second input voltage value meet the following preset conditions:
the signs of the first and second input current values are reversed; or the second input current value is smaller than a set threshold current value, and the second current threshold value is larger than or equal to the set input current value; or the second input voltage value is less than or equal to a voltage threshold value;
if so, determining the first current threshold value as a target current threshold value;
and if the judgment result is negative, readjusting the first current threshold value until the obtained first input current value, and/or second input voltage value meet the preset condition, and taking the adjusted first current threshold value as the target current threshold value.
3. The method according to claim 2, wherein the readjusting the first current threshold value until the obtained first input current value, and/or the obtained second input voltage value satisfy the predetermined condition, and taking the adjusted first current threshold value as the target current threshold value specifically includes:
and increasing or decreasing the first current threshold value by at least one set value until the obtained first input current value, and/or second input voltage value meet the preset condition, and taking the adjusted first current threshold value as a target current threshold value.
4. The method of claim 1, wherein prior to said determining that said initial input current value is greater than said first current threshold value, further comprising:
comparing the initial input current value to the first current threshold value;
when the initial input current value is smaller than or equal to the first current threshold value, the initial input current value is obtained again at intervals of preset intervals until the obtained initial input current value is larger than the first current threshold value.
5. The method according to claim 1, wherein the obtaining the first input current value corresponding to the first current threshold value specifically includes:
waiting for a first preset time to obtain a first input voltage value;
judging whether the first input voltage value meets a voltage input condition or not;
if so, modifying the first current threshold value into a final current threshold value, and charging by using the final current threshold value, wherein the final current threshold value is smaller than the first current threshold value;
and if the judgment result is negative, recording the current first input current value.
6. The method according to claim 5, wherein determining whether the first input voltage value satisfies a voltage input condition specifically comprises:
judging whether the first input voltage value is smaller than or equal to an under-voltage locking voltage value or not;
if so, stopping charging;
and if not, continuously judging whether the first input voltage value is smaller than or equal to the voltage threshold value.
7. A charging control apparatus of a mobile terminal, the apparatus comprising:
the receiving unit is used for receiving a power supply charging instruction and acquiring an initial input current value;
an adjusting unit, configured to adjust the first current threshold when it is determined that the initial input current value is greater than a first current threshold, where the adjusted first current threshold is used as a target current threshold, and when it is determined that the initial input current value is greater than the first current threshold, the first current threshold is adjusted, and the adjusted first current threshold is used as a target current threshold, where the adjusting unit specifically includes:
when the initial input current value is determined to be larger than the first current threshold value, carrying out temporary charging by using the first current threshold value, waiting for first preset time, and acquiring a first input current value corresponding to the first current threshold value;
adding a set value on the basis of the first current threshold value to serve as a second current threshold value, performing temporary charging by using the second current threshold value, waiting for second preset time, and acquiring a second input current value and a second input voltage value corresponding to the second current threshold value;
when the first input current value, the second input current value and/or the second input voltage value meet a preset condition, determining that the first current threshold value is a target current threshold value;
and the charging unit is used for charging by utilizing the target current threshold value.
8. A memory on which a computer program is stored, characterized in that the program, when executed by a processor, is adapted to implement the charging control method of a mobile terminal according to any of claims 1 to 6.
9. A charging control apparatus of a mobile terminal, the apparatus comprising a storage device and a processor,
the storage device is used for storing a computer program;
the processor is configured to execute the computer program to implement the charging control method of the mobile terminal according to any one of claims 1 to 6.
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