WO2018040177A1

WO2018040177A1 - Method and apparatus for rebooting

Info

Publication number: WO2018040177A1
Application number: PCT/CN2016/100686
Authority: WO
Inventors: 宋玉喜; 于洋; 马士强; 叶林军
Original assignee: 宇龙计算机通信科技(深圳)有限公司
Priority date: 2016-08-29
Filing date: 2016-09-28
Publication date: 2018-03-08
Also published as: CN106339064A

Abstract

A method and apparatus for rebooting, wherein same relate to the technical field of communications, and can solve the problem where, after a terminal automatically shuts down due to having low power, a user cannot use the terminal because the terminal cannot be rebooted under the condition of having low power. The method comprises: receiving a booting instruction input by a user (101); detecting a voltage value of a battery in a terminal (102); when the voltage value is lower than or equal to a pre-set voltage threshold value, limiting the booting of a pre-set number of CPU cores and reducing the frequency of a CPU to a pre-set frequency, so that the voltage value of the battery is greater than the pre-set voltage threshold value (103); and executing a booting operation (104). The solution thereof is suitable for use during rebooting.

Description

Method and device for restarting

The present application claims priority to Chinese Patent Application No. 201610754522.X, entitled "A Method and Apparatus for Re-booting", filed on August 29, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for rebooting.

Background technique

At present, the battery-powered terminal generally has a low-voltage automatic shutdown function, that is, when the voltage value of the battery in the terminal is lowered to a preset threshold (generally about 3.5V), the terminal will automatically shut down to avoid over-discharge. Damage to the battery. At this point, the battery still has 5%-10% of the remaining power, but if the user needs to turn it on again to get the information in the terminal or use the application of the terminal, the process of restarting will cause the battery to generate a larger discharge current, so that the battery The voltage value is lower than the preset threshold again, causing the terminal to fail to power on, so that the user cannot use the terminal in an emergency situation (for example, the user needs to view the conference record in the terminal memo or need to make an emergency call).

Summary of the invention

The invention provides a method and a device for restarting, which can solve the problem that a terminal cannot be used by a user after the terminal is automatically turned off after a low battery and cannot be restarted under a low power condition.

In order to achieve the above object, the present invention adopts the following technical solutions:

In a first aspect, the present invention provides a method for rebooting, the method being applied to a terminal, the method comprising:

Receiving a power-on command input by a user;

Detecting a voltage value of a battery in the terminal;

When the voltage value is lower than or equal to the preset voltage threshold, limiting a preset number of CPU cores to start and lower the frequency of the CPU to a preset frequency, so that the voltage value of the battery is greater than the preset Set a voltage threshold;

Perform a boot operation.

In a second aspect, the present invention provides a device for rebooting, the device being applied to a terminal, the device comprising:

a receiving unit, configured to receive a power-on command input by the user;

a detecting unit, configured to detect a voltage value of the battery in the terminal; when the voltage value is lower than or equal to the preset voltage threshold, limiting a preset number of CPU cores to start and lower the frequency of the CPU to a preset a frequency such that a voltage value of the battery is greater than the predetermined voltage threshold;

Execution unit, set to perform boot operation.

The method and device for rebooting according to the present invention detects the voltage value of the battery in the terminal by receiving a power-on command input by the user, and when the voltage value is lower than or equal to the preset voltage threshold, limiting the preset number of CPU cores to start and lower The frequency of the CPU is to a preset frequency, so that the voltage value of the battery is greater than the preset voltage threshold, and then the power-on operation is performed. In the prior art, the process of restarting causes the battery to generate a larger discharge current and the voltage value of the battery. If the terminal is unable to be turned on again, the terminal cannot be turned on, so that the user cannot use the terminal in an emergency, and the preset number of CPU cores can be started and the CPU frequency can be reduced while the terminal is in a low power state. To the preset frequency, thereby reducing the load of the terminal, thereby causing the battery in the terminal to generate a small discharge current, reducing the energy consumption of the battery, and making the remaining power of the battery sufficient to maintain the restarting process of the terminal. The terminal in the process of restarting is equivalent to entering a simplified booting system. In the simplified booting system, the battery in the terminal does not generate a large discharge current that causes the terminal to be shut down again, and the user can be in an emergency situation. Reboot and use the terminal.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a schematic flowchart of a method for rebooting according to an embodiment of the present invention;

2 is a schematic flowchart of another method for rebooting according to an embodiment of the present invention;

3 is a schematic flowchart of another method for rebooting according to an embodiment of the present invention;

4 is a schematic diagram of a logical structure of a device for rebooting according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a logical structure of a terminal according to an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

In order to facilitate the description of the following embodiments, the technology related to the embodiment of the present invention is first described. A terminal having a low voltage automatic shutdown function is set at a voltage threshold at the factory. In general, the voltage threshold can be set. It is about 3.5V. During the use of the terminal, the operating voltage of the battery will gradually decrease. When the operating voltage of the battery drops to a preset voltage threshold, the terminal will automatically shut down. It should be noted that the operating voltage of the battery is reduced to a preset voltage threshold, which does not mean that the operating voltage of the battery is zero. At this time, there is still a part of the remaining power in the battery. Under normal circumstances, the remaining power is 5% of the full battery power. -10%. However, these remaining power may not be sufficient to support the terminal to reboot, because when the user needs to re-use the terminal, if the normal boot process is initiated, the battery in the terminal will generate a larger discharge current, resulting in the voltage of the battery in the terminal. Again lower than or equal to the preset voltage threshold, causing the terminal to shut down again. If the terminal is not charged, the user can never re-use the application in the terminal or obtain the information in the terminal, causing great inconvenience to the user.

In fact, the voltage of the battery is not only related to the remaining power of the battery, but also related to the discharge current generated by the battery. The discharge current generated by the battery is mainly determined by the load of the terminal where the battery is located. The larger the load, the battery is generated. The greater the discharge current, the greater the voltage drop produced by the voltage of the battery relative to when the terminal in which the battery is located is unloaded. The following is a test data showing the relationship between the voltage of the battery, the voltage of the battery at 500 mA constant current discharge, and the remaining battery power when the terminal where the battery is located is no-load.

Battery remaining capacity Battery voltage at terminal no load 500mA constant current discharge voltage

100%--------4.20V--------4.20V

90%---------4.06V---------3.97V

80%---------3.98V---------3.87V

70%---------3.92V---------3.79V

60%---------3.87V---------3.73V

50%---------3.82V---------3.68V

40%---------3.79V---------3.65V

30%---------3.77V---------3.62V

20%---------3.74V---------3.58V

10%---------3.68V---------3.51V

5%----------3.45V----------3.42V

0%----------3.00V----------3.00V

It can be known from the above test data that if the terminal is in a state of constant current discharge of 500 mA, when the voltage drops to 3.79 V, the battery is considered to have 40% of the remaining power, and in fact, the battery still has 70% of the remaining power. The terminal is in the small current standby state again, that is, under no-load condition, the voltage of the battery will rise to 3.92V. At this time, the corresponding remaining battery capacity is 70%, and the remaining battery power of the terminal will rebound. Similarly, if the terminal is still in the 500mA constant current discharge state and reaches the voltage threshold of 3.51V, the terminal will automatically shut down, but in fact, if the terminal is in the no-load state at this time, the corresponding voltage of the battery is 3.68V, corresponding to The remaining power is 5-10%, and the terminal can work for a period of time under a small load to meet the needs of users.

In order to solve the problem that the terminal cannot be used after the low power is automatically turned off, the user cannot use the terminal after the power is turned off. The embodiment of the present invention provides a method for rebooting, which is applied to a terminal, and the method includes:

Step 101: Receive a power-on instruction input by a user.

The boot command may be an operation in which the user touches the screen, presses the power button, or inputs a fingerprint.

Step 102: Detect a voltage value of a battery in the terminal.

When receiving the power-on command input by the user, the voltage value of the battery in the terminal is detected to determine whether the voltage value of the battery in the terminal is sufficient to support the normal operation of the terminal.

Step 103: When the voltage value is lower than or equal to the preset voltage threshold, limit a preset number of CPU (Central Processing Unit) cores to start and lower the frequency of the CPU to a preset frequency, so that the voltage value of the battery is greater than Preset voltage threshold.

The preset voltage threshold is a voltage threshold for enabling the terminal to initiate a low voltage automatic shutdown procedure to protect the battery in the terminal. When it is detected that the battery voltage value of the terminal is lower than or equal to the preset voltage threshold, it may be determined that the terminal is in a low battery state at this time, and if the terminal is still in a large load condition, the process of restarting will be The battery generates a large discharge current, so that the voltage value of the battery is below the preset voltage threshold and cannot be restarted, so the preset number of CPU cores can be limited to start and reduce the frequency of the CPU to the preset frequency (CPU frequency refers to The CPU clock frequency) reduces the load on the terminal, which in turn causes the battery in the terminal to generate a small discharge current to reduce the power consumption, so that the remaining battery power is sufficient to maintain the terminal's restart process.

It should be noted that limiting the preset number of CPU cores to start and lowering the CPU frequency to the preset frequency only reduces the performance of the terminal, but can ensure that the terminal is restarted, so that the user can reuse the terminal in an emergency. Moreover, the preset number of CPU cores and the preset frequency can be set by the user according to actual needs and the specific conditions of the terminal.

Step 104: Perform a booting operation.

It can be understood that after performing step 103, the terminal has the ability to reboot.

The method for rebooting according to the embodiment of the present invention detects the voltage value of the battery in the terminal by receiving a power-on command input by the user, and when the voltage value is lower than or equal to the preset voltage threshold, limiting the preset number of CPU cores to start and decrease The frequency of the CPU is to a preset frequency, so that the voltage value of the battery is greater than the preset voltage threshold, and the power-on operation is performed. In the prior art, the process of restarting causes the battery to generate a larger discharge current, so that the voltage value of the battery If the terminal is unable to be turned on again, the terminal cannot be turned on, so that the user cannot use the terminal in an emergency, and the preset number of CPU cores can be started and the CPU frequency can be reduced while the terminal is in a low power state. To the preset frequency, thereby reducing the load of the terminal, thereby causing the battery in the terminal to generate a small discharge current, reducing the energy consumption of the battery, and making the remaining power of the battery sufficient to maintain the restarting process of the terminal. The terminal in the process of restarting is equivalent to entering a simplified booting system. In the simplified booting system, the battery in the terminal does not generate a large discharging current that causes the terminal to be shut down again, and the user can restart in an emergency. And use the terminal.

It is to be understood that, in another implementation manner provided by the embodiment of the present invention, if the voltage value of the battery in the terminal is detected to be higher than the preset voltage value, the terminal may be normally turned on without lowering the load of the terminal. After detecting the voltage value of the battery in the terminal in step 102 above, when the voltage value is higher than the preset voltage threshold, the power-on operation is performed.

It can be understood that, at this time, the remaining power of the battery in the terminal does not decrease to the preset voltage threshold, and the terminal can be powered on according to the user's power-on command and enter a normal working state to ensure normal use of the terminal.

In order to further reduce the load condition of the terminal and ensure that the user can use the terminal in an emergency situation, after step 103, limiting the preset number of CPU cores to start and lowering the frequency of the CPU to the preset frequency, the normal working current can be further restricted. The startup of the load, based on this, step 104, performing a booting operation, including: step 1041 to step 1042.

Step 1041: Start the function hardware according to the preset startup permission.

The preset startup permission includes: enabling startup and prohibiting startup, and the preset startup permission is a function hardware that allows the startup function to be a working current less than a preset current, and the preset startup permission is a function hardware that is prohibited from being activated. Functional hardware with current.

It should be noted that, in the embodiment of the present invention, the execution sequence of the step 1041 and the step 1042 is not limited. The embodiment of the present invention first performs step 1041, and then executes step 1042 as an example.

It should be noted that, when the terminal is in the factory setting phase or before the restarting process, when the user sets the terminal, the working current of each hardware in the terminal should be separately detected, and each hardware is determined separately. Whether the working current in normal operation is higher than the preset current, the preset starting permission of the hardware whose working current is higher than the preset current is set to prohibit starting, and the preset starting permission of the hardware whose operating current is lower than the preset current is set to Allow to start.

The hardware may be a radio frequency module, a display screen, an audio module, and a power amplifier.

It should be noted that, when the power of the battery in the terminal is higher than a preset threshold, that is, when the terminal is in a normal power-on process, the hardware with the preset startup permission being disabled may still be started.

For example, the detected current generated by high-definition camera is 800 mA, and the current generated by standard-definition camera is 600 mA. When the user uses 4G network data service, the generated current is 500 mA, when the user sees the screen brightness is high. In the case of an e-book, the current generated is 300 mA. When the user reads the e-book when the screen brightness is low, the current generated is 150 mA. Assuming that the preset current is 500 mA, when the voltage of the battery is detected to be lower than the preset voltage threshold. When the hardware that is allowed to be started is a hardware that supports the user to view the e-book when the screen brightness is high or low, the preset boot permission of the remaining hardware is prohibited from starting.

1042. Start the preset startup permission as a software application that is allowed to start.

The software application may be game software or video software, address book, memo, and the like.

When the game software or video software works normally, it will generate a large working current and increase the energy consumption of the battery. The software application that is prohibited from being started is software with a large working current such as game software.

When the address book, memo and other software work normally, the working current is small, and in an emergency, if the user needs to prepare the address book, the memo, etc., the probability of the software recording the important information is large, the software application that is allowed to be started is the memo class. Software.

Understandably, after each low-power automatic shutdown, the user needs to re-use the terminal immediately, because the application that the user needs to use immediately is not the same, so the terminal can prompt the user to select the user to use after the reboot. On the basis of the application, in another implementation manner provided by the embodiment of the present invention, as shown in FIG. 3, the foregoing step 1041, the function hardware is started according to the preset startup permission, and may be implemented as step 10411 or as a step. 10412 to step 10414.

10411. Start the preset startup permission as the function hardware that is allowed to start.

It can be understood that, because the working current of the function hardware that is allowed to start normally is lower than the preset current, the function of starting the preset start permission is the function hardware that is allowed to start, and the terminal is not shut down due to excessive current, the user can Re-use the terminal to complete the most urgent operations of the user, such as: send a text message, view the call history, address book, view the meeting schedule in the notebook.

10412. Output a prompt instruction.

The prompting instruction is used to prompt the user to select the functional hardware that needs to be prohibited from starting from the function hardware that the preset startup permission is allowed to start.

It should be noted that after each low-power automatic shutdown, when the user needs to re-use the terminal immediately, the application that the user needs to use is not necessarily the same. For example, after a low-power shutdown of the terminal, the user needs to make a call, and another time. After the terminal is powered off, the user needs to view the conference record. In order to ensure that the load of the terminal is in a small state, the user can use the terminal for a relatively long period of time. The terminal outputs the dialog box or voice prompt. The prompt instruction prompts the user to select the function hardware that needs to be prohibited from starting from the function hardware that the preset startup permission is allowed to start.

10413. Receive a selection instruction input by a user.

The selection instruction is used to indicate the function hardware selected by the user to prohibit startup.

10414. The preset startup permission is a functional hardware other than the function hardware that is selected by the user and is prohibited from being activated.

It should be noted that, since the preset boot permissions of the remaining hardware are all allowed to be started, after the user prohibits the startup of some unnecessary functional hardware, the remaining hardware can be started during the booting operation.

Embodiments of the present invention further limit the startup of the hardware, software, and applications that are not required by the user, after limiting the preset number of CPU cores to start and lower the frequency of the CPU to the preset frequency, further reducing the re The discharge current generated by the battery in the terminal during the startup process makes full use of the remaining battery capacity to support the user to complete the most important and most urgent operation, and at the same time, reduces the number of times the battery is charged and prolongs the service life of the battery.

Corresponding to the method flow shown in FIG. 1 , in order to solve the problem that the terminal cannot be used after the low power is automatically turned off, the user cannot use the terminal after the power is turned off. The embodiment of the present invention provides a device 40 for restarting. The device 40 is applied to a terminal. As shown in FIG. 4, the device 40 includes a receiving unit 401, a detecting unit 402, and an executing unit 403.

The receiving unit 401 is configured to receive a power-on command input by the user.

The detecting unit 402 is configured to detect a voltage value of the battery in the terminal; when the voltage value is lower than or equal to the preset voltage threshold, limiting a preset number of CPU cores to start and lower the frequency of the CPU to a preset frequency, to The voltage value of the battery is made greater than a preset voltage threshold.

The execution unit 403 is configured to perform a booting operation.

In another implementation manner of the embodiment of the present invention, the executing unit 403 is further configured to perform a power-on operation when the voltage value is higher than the preset voltage threshold.

In another implementation manner of the embodiment of the present invention, the executing unit 403 is further configured to start the function hardware according to the preset startup permission, and the preset startup permission includes: enabling and prohibiting the startup, and the preset activation permission is allowed. The function hardware that is started is the function hardware whose working current is less than the preset current, and the function hardware whose preset start permission is prohibited to start is the function hardware whose working current is greater than the preset current.

In another implementation manner of the embodiment of the present invention, the executing unit 403 is further configured to start the function hardware that the preset startup permission is allowed to start.

In another implementation manner of the embodiment of the present invention, the executing unit 403 is further configured to output a prompting instruction, where the prompting instruction is used to prompt the user to select a function hardware that is allowed to be started from a preset startup permission to be activated. Function hardware; receiving a selection instruction input by a user, the selection instruction is used to indicate a function hardware selected by the user to prohibit startup; and the function of starting the preset activation permission is a function hardware that is prohibited from being activated, except for the function hardware selected by the user. hardware.

In another implementation manner of the embodiment of the present invention, the executing unit 403 is further configured to start a software application that is preset to be started.

According to the embodiment of the present invention, the receiving unit receives the power-on command input by the user; the detecting unit detects the voltage value of the battery in the terminal, and limits the preset number of CPUs when the voltage value is lower than or equal to the preset voltage threshold. The core starts and lowers the frequency of the CPU to a preset frequency, so that the voltage value of the battery is greater than a preset voltage threshold; the execution unit performs a power-on operation, and in the prior art, the process of restarting causes the battery to generate a larger discharge current. The voltage value of the battery is again lower than the preset voltage threshold, so that the terminal cannot be turned on, so that the user cannot use the terminal in an emergency situation, and the preset number of CPU cores can be started during the process of the terminal being in a low battery power-on state. And reducing the frequency of the CPU to the preset frequency, thereby reducing the load of the terminal, thereby causing the battery in the terminal to generate a small discharge current, reducing the power consumption of the battery, and making the remaining power of the battery sufficient to maintain the restart of the terminal. process. The terminal in the process of restarting is equivalent to entering a simplified booting system. In the simplified booting system, the battery in the terminal does not generate a large discharging current that causes the terminal to be shut down again, and the user can restart in an emergency. And use the terminal.

The embodiment of the present invention further provides a terminal. As shown in FIG. 5, the terminal 50 is a hardware structure diagram of the apparatus described in FIG. The terminal 50 may include a memory 501, a processor 502, a battery 503, a voltage detecting device 504, and a bus 505.

The memory 501 may be a ROM (Read Only Memory), a static storage device, a dynamic storage device, or a RAM (Random Access Memory). The memory 501 can store an operating system and other applications. When the technical solution provided by the embodiment of the present invention is implemented by software or firmware, the program code for implementing the technical solution provided by the embodiment of the present invention is stored in the memory 501 and executed by the processor 502 and the voltage detecting device 504.

The processor 502 can be a general-purpose central processing unit (CPU), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits for executing related programs. The technical solution provided by the embodiment of the present invention is implemented.

Bus 505 can include a path for communicating information between various components of the device, such as memory 501, processor 502, and voltage sensing device 504.

It should be noted that although the hardware shown in FIG. 5 shows only the memory 501, the processor 502, the battery 503, the voltage detecting means 504, and the bus 505. However, in a specific implementation process, those skilled in the art will appreciate that the terminal 50 also includes other devices necessary to achieve normal operation. At the same time, those skilled in the art will appreciate that hardware devices that implement other functions may also be included, depending on the particular needs.

Specifically, when the terminal 50 shown in FIG. 5 is used to implement the device shown in the embodiment of FIG. 4, the processor 502 in the terminal 50 is configured to receive a power-on command input by the user, and notify the voltage detecting device 504 to perform voltage detection. .

The voltage detecting device 504 is configured to detect a voltage value of the battery 503 in the terminal 50;

The processor 502 is further configured to: when the voltage value detected by the voltage detecting device 504 is lower than or equal to the preset voltage threshold, limit a preset number of CPU cores to start and lower the frequency of the CPU to a preset frequency, so that The voltage value of the battery 503 is greater than a preset voltage threshold.

The processor 502 is further configured to perform a booting operation.

In another implementation manner provided by the embodiment of the present invention, the processor 502 is further configured to perform a power-on operation when the voltage value is higher than the preset voltage threshold.

In another implementation manner provided by the embodiment of the present invention, the processor 501 is further configured to start the function hardware according to the preset startup permission, where the preset startup permission includes: enabling startup and prohibiting startup, and the preset startup permission is allowed to be started. The function hardware is a function hardware whose working current is less than the preset current, and the function hardware whose preset start permission is prohibited to start is a function hardware whose working current is greater than the preset current.

In another implementation manner provided by the embodiment of the present invention, the processor 502 is further configured to start a function hardware that is preset to start permission to be enabled.

The processor 502 is further configured to output a prompting instruction, where the prompting instruction is used to prompt the user to select a function hardware that is prohibited from being activated from the function hardware that is allowed to start, and to receive a selection instruction input by the user, and the selection instruction is used to indicate the user. The selected function hardware that is forbidden to start; the default startup permission is the function hardware that is allowed to be activated, except for the function hardware that the user selects to prohibit startup.

In another implementation manner provided by the embodiment of the present invention, the processor 502 is further configured to start a software application whose preset permission is allowed to be started.

In the terminal provided by the embodiment of the present invention, the processor first receives the power-on command input by the user, and then the voltage detecting device detects the voltage value of the battery in the terminal. When the voltage value is lower than or equal to the preset voltage threshold, the processor limits the preset number. The CPU core starts and lowers the frequency of the CPU to a preset frequency, so that the voltage value of the battery is greater than a preset voltage threshold, and then the processor performs a power-on operation. In the prior art, the process of restarting causes the battery to generate a larger battery. The discharge current causes the voltage value of the battery to be lower than the preset voltage threshold again, resulting in the terminal being unable to be turned on, so that the user cannot use the terminal in an emergency situation, and the preset number of the terminal can be limited during the process of restarting the battery at a low power level. The CPU core starts and reduces the frequency of the CPU to a preset frequency, thereby reducing the load of the terminal, thereby causing the battery in the terminal to generate a smaller discharge current, reducing the energy consumption of the battery, and making the remaining battery power sufficient to maintain the terminal. The reboot process. The terminal in the process of restarting is equivalent to entering a simplified booting system. In the simplified booting system, the battery in the terminal does not generate a large discharging current that causes the terminal to be shut down again, and the user can restart in an emergency. And use the terminal.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. . Based on the understanding, the technical solution of the present invention, which is essential or contributes to the prior art, can be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. A hard disk or optical disk, etc., includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

A method for rebooting, wherein the method is applied to a terminal, the method comprising:

Receiving a power-on command input by a user;

Detecting a voltage value of a battery in the terminal;

When the voltage value is lower than or equal to the preset voltage threshold, limiting a preset number of CPU cores to start and lower the frequency of the CPU to a preset frequency, so that the voltage value of the battery is greater than the preset Set a voltage threshold;

Perform a boot operation.
The method of re-booting according to claim 1, wherein after the detecting the voltage value of the battery in the terminal, the method further comprises:

When the voltage value is higher than the preset voltage threshold, the power-on operation is performed.
The method of restarting according to claim 1, wherein the performing the booting operation comprises:

The function hardware is started according to the preset startup permission, and the preset startup permission includes: enabling and disabling the startup, and the preset activation permission is a functional hardware that allows the startup function hardware to be less than the preset current, the preset The function hardware whose startup permission is forbidden to start is the function hardware whose operating current is greater than the preset current.
The method for restarting the function according to claim 3, wherein the starting the function hardware according to the preset startup permission comprises:

Initiating the preset boot permission as a function hardware that allows booting; or

And outputting a prompting instruction, where the prompting instruction is used to prompt the user to select, from the function hardware that is allowed to start, the function hardware that is prohibited from being activated;

Receiving a selection instruction input by the user, where the selection instruction is used to indicate a function hardware selected by the user to prohibit startup;

The preset boot permission is the function hardware of the function hardware that is allowed to be started, except the function hardware selected by the user and prohibited to be started.
The method of rebooting according to claim 4, wherein the performing the booting operation further comprises:

Start the default launch permission for the software application that is allowed to start.
A device for restarting, characterized in that the device is applied to a terminal, the device comprising:

a receiving unit, configured to receive a power-on command input by the user;

a detecting unit, configured to detect a voltage value of the battery in the terminal; when the voltage value is lower than or equal to the preset voltage threshold, limiting a preset number of CPU cores to start and lower the frequency of the CPU to a preset a frequency such that a voltage value of the battery is greater than the predetermined voltage threshold;

Execution unit, set to perform boot operation.
The device for restarting according to claim 6, wherein

The execution unit is further configured to perform a power-on operation when the voltage value is higher than a preset voltage threshold.
The device for restarting according to claim 6, wherein

The execution unit is further configured to start the function hardware according to the preset startup permission, where the preset startup permission includes: enabling and prohibiting the startup, and the preset activation permission is a function hardware that allows the startup to be less than the preset current. The function hardware, the preset startup permission is a function hardware that prohibits starting, and the function hardware is a function hardware whose working current is greater than a preset current.
A device for restarting according to claim 8 wherein:

The execution unit is further configured to start the preset boot permission as a function hardware that is allowed to be started;

The execution unit is further configured to output a prompting instruction, where the prompting instruction is used to prompt the user to select a function hardware that is prohibited from being activated from the function hardware that is allowed to be started, and to receive a selection instruction input by the user. The selection instruction is used to indicate the function hardware that is selected by the user and is prohibited from being activated; and the function hardware that is activated in the function hardware that is allowed to be started, except for the function hardware that is prohibited from being activated by the user, is activated.
A device for restarting according to claim 9, wherein:

The execution unit is further configured to start a preset application permission to be a software application that is allowed to be started.