WO2020179951A1

WO2020179951A1 - A method and apparatus for managing a battery life in a smart terminal

Info

Publication number: WO2020179951A1
Application number: PCT/KR2019/002621
Authority: WO
Inventors: Huaiwei JU; Hai SUN; Jinming Zhao
Original assignee: Samsung Electronics Co., Ltd.
Priority date: 2019-03-06
Filing date: 2019-03-06
Publication date: 2020-09-10

Abstract

The application provides a method and apparatus for efficiently managing a battery life of a smart terminal. When a current remaining battery life TB of the smart terminal is less than a duration TA required to reach a target location, the smart terminal estimates a battery life increasing time corresponding to each of at least two unimplemented power saving strategies. The smart terminal may apply one of the at least two unimplemented power saving strategies so that the TB can satisfy the TA in consideration of the estimated battery life increase times.

Description

A METHOD AND APPARATUS FOR MANAGING A BATTERY LIFE IN A SMART TERMINAL

The application relates to the field of energy-efficient processing of smart terminal equipment, and more particular, to a power-efficient operation control method and device for a smart terminal.

The implementation scheme of a power saving mode of an existing smart terminal mainly includes:

reminding ways: one is that when the electric quantity of the smart terminal is lower than a preset value, a dialog box automatically pops up to remind a user whether to turn on the power saving mode; and the other is that the user manually turns on the power saving mode in Settings;

power saving mode: the smart terminal usually has two power saving modes, namely, general power saving mode and aggressive power saving mode;

strategy settings: the strategies adopted in the general power saving mode include reducing backlight brightness, restricting network, and restricting equipment performance; and besides the strategies adopted in the general power saving mode, the aggressive power saving mode also adopts the strategies including reducing resolution and using a black background.

However, the prior art has the following disadvantages:

in the prior art, power saving strategy items are complicated and difficult to understand, and are mostly provided with custom options, resulting in excessive participation of the user;

in the prior art, there is only a single fixed reminding way, which triggers the smart terminal to enter the power saving mode only according to a low-power threshold value without understanding the actual demands of the user, or reminding the user to turn on the power saving mode not in combination with actual scenes.

In the prior art, compared with a normal use mode, the battery life extension is not obvious in the general power saving mode; in the aggressive power saving mode, the battery life is significantly prolonged, but only allows limited third-party applications to use, affecting user experience.

In the prior art, once any power saving mode is triggered, each control strategy and corresponding control parameters thereof are fixed accordingly, causing the estimated battery life increasing time to be fixed.

In view of above, the main object of the application is to provide a power-efficient operation control method and device for a smart terminal, so as to reduce interference and influences on user operation experience while increasing the battery life of the smart terminal.

The technical scheme of the application is realized as follows:

A power-efficient operation control method for a smart terminal, including:

setting at least two power saving strategies for the smart terminal, wherein a power saving factor is correspondingly set in each power saving strategy, and the power saving factor corresponds to a power consumption rate;

identifying a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than a duration TA required to reach a target location, estimating a battery life increasing time corresponding to each unimplemented power saving strategy in sequence, when estimating a battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into a remaining battery life TB, and when TB is greater than or equal to TA, entering a stepless speed changing power saving mode and executing as follows:

A1, implementing an estimated power saving strategy;

A2, when monitoring a drop in an electric quantity of the smart terminal, gradually reducing a value of the power saving factor of the implemented power saving strategy, re-estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeating A2 if TB is greater than or equal to TA; and if TB is less than TA, executing A3; and

A3, continuing to sequentially estimate the battery life increasing time corresponding to the unimplemented power saving strategies, when estimating the battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and returning to A1 when TB is greater than or equal to TA.

In a preferred embodiment of the method, the power saving strategies are ranked according to a descending order of an aggressive degree, the power saving factors in each power saving strategy are ranked according to a descending order of the power consumption rate; and

wherein sequentially estimating the battery life increasing time corresponding to the unimplemented power saving strategies includes: sequentially estimating the battery life increasing time corresponding to the unimplemented power saving strategies, according to the order of the aggressive degrees of the power saving strategies.

In a preferred embodiment of the method, identifying the target scene where the user is about to go includes:

according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identifying the target scene where the user is about to go, and determining the duration TA required to reach the target location from a current location; and determining the current remaining battery life TB of the smart terminal.

In a preferred embodiment of the method, the method further includes:

when TB is greater than or equal to TA, before entering the stepless speed changing power saving mode, triggering a reminder of the stepless speed changing power saving mode, and triggering the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction confirming the entering of the stepless speed changing power saving mode.

In a preferred embodiment of the method, the method further includes:

after all the power saving strategies have been implemented, estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, sending out a warning message that the electric quantity is too low to reach the destination.

In a preferred embodiment of the method, the power saving strategies include at least two of the following power saving strategies:

a smart terminal backlight control power saving strategy, configured to reduce a backlight brightness of a screen;

a smart terminal screen and network deactivating power saving strategy, configured to control a delay time for network disconnection after the screen is turned off;

a smart terminal screen timeout power saving strategy, configured to control a duration from no operation to screen off;

a smart terminal process management power saving strategy, configured to control the number of applications which allow an operating system to reside in the background;

a smart terminal forced hibernation power saving strategy, configured to control a duration required from screen off to a forced hibernation state;

a smart terminal performance restricting power saving strategy, configured to control performance parameters of internal equipment of the smart terminal;

a smart terminal screen off reminding power saving strategy, configured to deactivate a screen off reminding function of the screen;

a smart terminal resolution reduction power saving strategy, configured to control and adjust a screen resolution of the smart terminal;

a terminal display area power saving strategy, configured to reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background;

a smart terminal display gray-scale power saving strategy, configured to display a screen picture as a gray-scale image; and

a smart terminal wireless control power saving strategy, configured to shut down wireless devices of the smart terminal.

In a preferred embodiment of the method, the power saving factor corresponds to the smart terminal backlight control power saving strategy is a backlight brightness discount rate;

the power saving factor corresponding to the smart terminal screen and network deactivating power saving strategy is the delay time for network disconnection after the screen is turned off;

the power saving factor corresponding to the smart terminal screen timeout power saving strategy is the duration from no operation to screen off;

the power saving factor corresponding to the smart terminal process management power saving strategy is the number of applications which allow the operating system to reside in the background;

the power saving factor corresponding to the smart terminal forced hibernation power saving strategy is the duration required from screen off to the forced hibernation state;

the power saving factor corresponding to the smart terminal performance restricting power saving strategy is the performance parameters of the internal equipment of the smart terminal;

the power saving factor corresponding to the smart terminal screen off reminding power saving strategy is on and off of the screen off reminding function;

the power saving factor corresponding to the smart terminal resolution reduction power saving strategy is the screen resolution parameters of the smart terminal;

the power saving factor corresponding to the terminal display area power saving strategy is a reduction scale of the main display area;

the power saving factor corresponding to the smart terminal display gray-scale power saving strategy is a gray-scale value of the screen picture; and

the power saving factor corresponding to the smart terminal wireless device power saving strategy is on and off of each wireless device of the smart terminal.

A power-efficient operation control device for a smart terminal, including:

a stepless speed changing management module, configured to set at least two power saving strategies for the smart terminal, wherein a power saving factor is correspondingly set in each power saving strategy, and the power saving factor corresponds to a power consumption rate;

a scene identification module, configured to identify a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than a duration TA required to reach a target location, estimating a battery life increasing time corresponding to each unimplemented power saving strategy in sequence, when estimating a battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and when TB is greater than or equal to TA, trigger the smart terminal to enter a stepless speed changing power saving mode; and

a power saving strategy implementation module, including power saving strategy executing modules corresponding to each power saving strategy;

wherein the stepless speed changing management module further includes a first module, a second module and a third module; after the smart terminal enters the stepless speed changing power saving mode, the stepless speed changing management module is further configured to triggers the first module;

the first module is configured to implement the power saving strategy already estimated by the scene identification module;

the second module is configured to, when monitoring a drop in an electric quantity of the smart terminal, gradually reduce a value of the power saving factor of the implemented power saving strategy, re-estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeat an execution process of the second module if TB is greater than or equal to TA; and if TB is less than TA, trigger the third module; and

the third module is configured to continue to sequentially estimate the battery life increasing time corresponding to each unimplemented power saving strategy, when estimating the battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and return to the first module when TB is greater than or equal to TA.

In a preferred embodiment of the device, the scene identification module is further configured to, according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identify the target scene where the user is about to go, determine the duration TA required to reach the target location from a current location; and determine a current remaining battery life TB of the smart terminal.

In a preferred embodiment of the device, the scene identification module is further configured to, when TB is greater than or equal to TA, before entering the stepless speed changing power saving mode, trigger a reminder of the stepless speed changing power saving mode, and trigger the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction confirming the entering of the stepless speed changing power saving mode.

In a preferred embodiment of the device, the stepless speed changing management module further includes a fourth module configured to, after all the power saving strategies are implemented, estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, send out a warning message that the electric quantity is too low to reach the destination.

In a preferred embodiment of the device, the power saving strategy implementation module includes at least two of the following power saving strategy executing modules:

a backlight control power saving strategy executing module, configured to execute a smart terminal backlight brightness control strategy, reduce a backlight brightness of a screen;

a screen and network deactivating power saving strategy executing module, configured to execute a smart terminal network power saving strategy, control a delay time for network disconnection after the screen is turned off;

a screen timeout power saving strategy executing module, configured to execute a smart terminal screen timeout control strategy, control a duration from no operation to screen off;

a process management power saving strategy executing module, configured to execute a smart terminal operating system background process management strategy, control the number of applications which allow an operating system to reside in the background;

a forced hibernation power saving strategy executing module, configured to execute a smart terminal forced hibernation strategy, control a duration required from screen off to a forced hibernation state;

a performance restricting power saving strategy executing module, configured to execute a smart terminal internal equipment performance restricting strategy, control performance parameters of internal equipment of the smart terminal;

a screen off reminding power saving strategy executing module, configured to execute a smart terminal screen off reminding control strategy, deactivate a screen off reminding function of the screen;

a resolution reduction power saving strategy executing module, configured to execute a smart terminal screen resolution reduction strategy, control and adjust a screen resolution of the smart terminal;

a display area power saving strategy executing module, configured to execute a smart terminal screen display area control strategy, reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background;

a display gray-scale power saving strategy executing module, configured to execute a smart terminal screen gray-scale control strategy, display a screen picture as a gray-scale image; and

a wireless device power saving strategy executing module, configured to execute a smart terminal wireless device control strategy, shut down wireless devices of the smart terminal.

In a preferred embodiment of the device, the power saving factor corresponding to the smart terminal backlight control power saving strategy is a backlight brightness discount rate;

the power saving factor corresponding to the smart terminal display area power saving strategy is a reduction scale of the main display area;

Compared with the prior art, the application understands the real demand of the user for the battery life of the smart terminal through smart scene identification, and turns on the stepless speed changing power saving mode. At least two power saving strategies of the smart terminal are preset, a power saving factor is correspondingly set in each power saving strategy, the power saving factors in each power saving strategy are ranked in a descending order according to the power consumption rate, and the power saving strategies are ranked in a descending order according to the aggressive degree. The application can automatically identify the target scene where the user is about to go, when the current remaining battery life TB of the smart terminal is less than the time TA required to reach the target location, estimate the battery life increasing time corresponding to each power saving strategy, according to the descending order of the aggressive degree, and when estimating the battery life increasing time of a power saving strategy, add the estimated battery life increasing time into the remaining battery life TB, and when TB is greater than or equal to TA, enter the stepless speed changing power saving mode. After the smart terminal enters the stepless speed changing power saving mode, all the power saving strategies are not implemented at one time, but are automatically estimated along with the reduction of the electric quantity each time, if the currently implemented power saving strategy no longer enables the smart terminal to last to the destination, more aggressive power saving strategies which have not yet been implemented are added in time, for several power saving strategies that have been implemented, gradually aggressive power saving factor control parameters are executed, and stepless smooth transition of the whole control process is realized. In this way, the balance between user experience and power saving is ensured, and it is also ensured that the equipment has enough power to reach the destination. As a result, interference and influences on user operation experience are reduced while the battery life of the smart terminal is increased.

In particular, in the application, various power saving strategies have been preset in the smart terminal, temporary custom setting of the user is not needed, and obscure understanding and selection of multiple strategies are avoided. In the application, a flexible power saving strategy is adopted at the initial stage of the power saving mode, so that the operation experience of the user is only slightly reduced. As the electric quantity drops, whether the currently implemented power saving strategy and the power saving factor can make the equipment last to the destination is re-estimated, if not, more aggressive power saving strategies which have not yet been implemented are added in time, the power saving factors, namely control parameters of the implemented power saving strategies are made aggressive gradually, stepless smooth transition of the whole control process is realized, and the purpose of lasting to the destination is finally achieved.

Fig. 1 is a flow chart of a smart terminal after entering a stepless speed changing power saving mode, in accordance with an embodiment of the application;

Fig. 2 is a schematic diagram illustrating a power-efficient operation control device for a smart terminal, in accordance with an embodiment of the application;

Fig. 3 is a schematic diagram illustrating a power-efficient operation control device for a smart terminal, in accordance with another embodiment of the application;

Fig. 4 is a schematic diagram illustrating structure of a power saving strategy implementation module of a control device, in accordance with an embodiment of the application;

Fig. 5 is an operation flow chart of a power-efficient operation control device for a smart terminal, in accordance with an embodiment of the application;

Fig. 6 is a schematic diagram of a trip scene; and

Fig. 7 is a schematic diagram of a commuting scene.

The application will be described in further detail below with reference to the accompanying drawings and specific embodiments.

The core technical scheme of a power-efficient operation control method for a smart terminal is as follows:

identifying a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than the time TA required to reach a target location, estimating the battery life increasing time corresponding to power saving strategies which have not been implemented in sequence, and when estimating a battery life increasing time corresponding to a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and when TB is greater than or equal to TA, entering a stepless speed changing power saving mode;

After the smart terminal enters the stepless speed changing power saving mode, performing the blocks as shown in Fig. 1.

In block 101, implementing the estimated power saving strategy;

In block 102, when monitoring a drop in the electric quantity of the smart terminal, gradually reducing a value of the power saving factor of the implemented power saving strategy, meanwhile re-estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeating block 102 if TB is greater than or equal to TA; and if TB is less than TA, executing block 103; and

in block 103, continuing to sequentially estimate the battery life increasing time corresponding to the power saving strategies which have not been implemented, when estimating a battery life increasing time corresponding to a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and returning to block 101 when TB is greater than or equal to TA.

When a charging event occurs, the stepless speed changing power saving mode is exited.

In a preferred embodiment, the power saving strategies are ranked in an ascending order according to the aggressive degree, and the so-called aggressive degree is a measure of power consumption in this application. The more aggressive the power saving strategy is, that is, the higher the aggressive degree is, the less functions the power saving strategy provides, but the lower the power consumption rate.

The power saving factors in each power saving strategy are ranked in a descending order according to the power consumption rate. When the power saving factor becomes lower, the power consumption rate is lower, and the aggressive degree is higher. In a preferred embodiment, an initial value of the power saving factor for each power saving strategy implemented may be set to be a high power consumption rate value.

According to the method of the application, in the stepless speed changing power saving mode, it is possible to automatically estimate how many power saving strategies are required to ensure that the smart terminal has enough power to reach the destination, and implement the estimated power saving strategies, the control parameter (i.e., power saving factor) of each power saving strategy is gradually aggressive, stepless smooth transition of the control process is realized, and the purposes of ensuring the best user experience and prolonging the battery life are ensured. The power saving factor of the power saving strategy is gradually aggressive, which means that the power saving factor is gradually reduced from a high power consumption rate to a low power consumption rate, but the low power consumption rate leads to the cancellation or reduction of various application functions, subsequently the user operation experience of the low power consumption rate is worse than that of the high power consumption rate, but the power consumption rate is greatly reduced, thus realizing a relative balance between the user experience and power saving.

In a further embodiment of the application, the real demand of the user for the battery life of the smart terminal can be further understood through smart scene identification, so that the user can be reminded to turn on the stepless speed changing power saving mode. The process for identifying the target scene where the user is about to go specifically includes:

according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identifying the target scene where the user is about to go, and determining the time TA required to reach the target location from a current location; and determining a current remaining battery life TB of the smart terminal. When TA is greater than TB, before entering the stepless speed changing power saving mode, the process may further include: triggering a reminder of the stepless speed changing power saving mode, and triggering the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction from the user confirming the entering of the stepless speed changing power saving mode.

The travel plan of the user is, for example, the information stored in the smart terminal such as the destination and time of the car, train and plane by which the user travels, which can be used to identify a current trip to be made by the user, identify the target scene of the trip, including the target location, and estimate the duration required to reach the target location.

The historical traffic information, such as the historical record information stored in the smart terminal that the user takes public transportation without charging power such as subway and buses, includes information such as traffic mode, time, and route. Based on the information and the current time, the current trip to be made by the user can be estimated and identified, such as commuting by subway. Besides, the target scene of the trip can be identified, for example, the target location is the home address where the user goes back after work, the duration required to reach the home address can be estimated, and the duration can be obtained according to historical records.

The current displacement change of the smart terminal can be, for example, the movement of the smart terminal away from home, company or hotel with the user, and through the information or the above travel plan and/or historical traffic information, the target location of the trip can be identified and the required duration can be estimated.

The determination of the current remaining battery life TB of the smart terminal may include: estimating the remaining battery life according to the current usage habits of the user.

When a scene requiring stepless speed changing power saving is identified, the reminding module interacts with the user to remind the user whether to turn up the stepless speed changing smart power saving mode. The reminding content is something like "According to the current power consumption condition, location X cannot be reached, you are recommended to enter the stepless speed changing smart power saving mode immediately, and the remaining battery life is increased to Y hours."

Of course, in another specific embodiment, the entering of the stepless speed changing power saving mode can also be triggered manually by the user, that is, when the user wishes to enter the stepless speed changing power saving mode, the user can actively input the target location, which is equivalent to the smart terminal identifying the target scene where the user is about to go, and the user can also actively send an instruction of entering the stepless speed changing power saving mode to the smart terminal, for example, clicking a button for entering the stepless speed changing power saving mode.

In a method embodiment of the application, in block 102, when the remaining electric quantity gradually decreases, for example, from 33% to 32%, 31%, 30%, etc., it is automatically estimated whether to implement a power saving strategy and which power saving strategy needs to be implemented, so as to ensure that the smart terminal has enough power to reach the destination, the control parameter of each implemented power saving strategy is made gradually aggressive, and the value of the power saving factor of the implemented power saving strategy is gradually reduced, specifically, the values of the power saving factors of all the implemented power saving strategies are correspondingly gradually reduced. Through the step-by-step decreasing operation, the value of the power saving factor can be gradually made aggressive according to power consumption, stepless smooth transition of the control process is realized, and the purposes of ensuring good user experience and prolonging the battery life are ensured. Just because the process is a stepless smooth transition process, the power saving control process of stepless smooth transition type is referred to as a stepless speed changing power saving mode in the application.

In another embodiment of the application, the method may further include: after all the power saving strategies are implemented, estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, sending out a warning message that the electric quantity is too low to reach the destination.

For the power saving strategies in the application, in a specific embodiment, for example, at least two of the following power saving strategies are included:

a smart terminal backlight control power saving strategy, configured to reduce the backlight brightness of a screen;

a smart terminal screen and network deactivating power saving strategy, configured to controll the delay time for network disconnection after the screen is turned off;

a smart terminal screen timeout power saving strategy, configured to control the duration from no operation to screen off;

a smart terminal forced hibernation power saving strategy, configured to control the duration required from screen off to a forced hibernation state;

a smart terminal performance restricting power saving strategy, configured to control the performance parameters of internal equipment of the smart terminal;

a smart terminal display area power saving strategy, configured to reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background;

a smart terminal display gray-scale control power saving strategy, configured to display a screen picture as a gray-scale image; and

a smart terminal wireless device power saving strategy, configured to shut down the wireless devices of the smart terminal.

Of course, only some typical power saving strategies are listed herein, and other corresponding power saving strategies can be set, according to the actual power consumption function and power consumption equipment of the smart terminal.

For these strategies,

a power saving factor corresponding to the smart terminal backlight control power saving strategy is a backlight brightness discount rate;

a power saving factor corresponding to the smart terminal screen and network deactivating power saving strategy is the delay time for network disconnection after the screen is turned off;

a power saving factor corresponding to the smart terminal screen timeout power saving strategy is the duration from no operation to screen off;

a power saving factor corresponding to the smart terminal process management power saving strategy is the number of applications which allow the operating system to reside in the background;

a power saving factor corresponding to the smart terminal forced hibernation power saving strategy is the duration required from screen off to the forced hibernation state;

a power saving factor corresponding to the smart terminal performance restricting power saving strategy is the performance parameters of the internal equipment of the smart terminal;

a power saving factor corresponding to the smart terminal screen off reminding power saving strategy is on and off of the screen off reminding function;

a power saving factor corresponding to the smart terminal resolution reduction power saving strategy is the screen resolution parameters of the smart terminal;

a power saving factor corresponding to the smart terminal display area power saving strategy is a reduction scale of the main display area;

a power saving factor corresponding to the smart terminal display gray-scale power saving strategy is a gray-scale value of the screen picture; and

a power saving factor corresponding to the smart terminal wireless device power saving strategy is on and off of each wireless device of the smart terminal.

The power saving factors corresponding to other power saving strategies are similarly set.

Corresponding to foregoing power-efficient operation control method for the smart terminal, the application also discloses a power-efficient operation control device for the smart terminal. Fig. 2 is a schematic diagram illustrating a power-efficient operation control device for a smart terminal, in accordance with an embodiment of the application. Referring to Fig. 2, the control device includes:

a scene identification module 200, configured to identify a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than the duration TA required to reach a target location, estimate the battery life increasing time corresponding to unimplemented power saving strategies in sequence, once estimate a battery life increasing time corresponding to a power saving strategy, add the estimated battery life increasing time into the remaining battery life TB, and when TB is greater than or equal to TA, trigger the smart terminal to enter a stepless speed changing power saving mode;

a stepless speed changing management module 201, configured to set at least two power saving strategies for the smart terminal, in which a power saving factor is correspondingly set for each power saving strategy, and the power saving factor corresponds to a power consumption rate; and

a power saving strategy implementation module 202, including power saving strategy executing modules corresponding to each power saving strategy;

in which the stepless speed changing management module 201 further includes a first module 211, a second module 212 and a third module 213; the stepless speed changing management module 201 is configured to trigger the first module 211, after the smart terminal enters the stepless speed changing power saving mode;

the first module 211 is configured to implement the power saving strategy already estimated by the scene identification module;

the second module 212 is configured to, when monitoring a drop in the electric quantity of the smart terminal, gradually reduce a value of the power saving factor of the implemented power saving strategy, re-estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeat the execution process of the second module if TB is greater than or equal to TA; and if TB is less than TA, trigger the third module; and

the third module 213 is configured to continue to sequentially estimate the battery life increasing time corresponding to the unimplemented power saving strategies, once estimating a battery life increasing time corresponding to a power saving strategy, add the estimated battery life increasing time into the remaining battery life TB, and return to the first module when TB is greater than or equal to TA.

In a preferred embodiment, the scene identification module 200 is specifically configured to, according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identify the target scene where the user is about to go, and determine the duration TA required to reach the target location from a current location; and determine a current remaining battery life TB of the smart terminal.

In a preferred embodiment, the scene identification module 200 is further configured to, when TB is greater than or equal to TA, before entering the stepless speed changing power saving mode, trigger a reminder of the stepless speed changing power saving mode, and trigger the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction confirming the entering of the stepless speed changing power saving mode.

More specifically, the scene identification module 200 further includes a scene capture identification module and a reminding module.

The scene capture identification module is configured to identify a target scene and collect user information on the smart terminal. The information collected mainly includes: travel plan of the user, displacement of the smart terminal, battery life, traffic habits of the user and other information. According to the travel plan of the user and the displacement change information of the smart terminal, it is identified that the user is about to travel, the duration TA required to reach a target location from a current location and the current remaining battery life TB are calculated, and if TA > TB, the reminding module is triggered.

In addition, the scene capture identification module is also configured to capture and identify a set scene by using machine learning, data analysis, artificial intelligence and other technical means, and trigger the reminding module, if the current scene is identified to meet the conditions of the set scene.

Regarding the reminding module, after a stepless speed changing power saving scene is identified, the stepless speed changing management module is configured to estimate the power saving strategies to be implemented and the corresponding power saving factors thereof, so as to ensure that the equipment can last to the destination, and through interaction between the reminding module and the user, the reminding module is configured to remind the user whether to start the stepless speed changing smart power saving mode. The reminding content is something like "According to the current power consumption condition, it is recommended that you enter the stepless speed changing smart power saving mode immediately, and the battery life is increased to XX hours, otherwise the equipment will not last to location B."

Fig. 3 is a schematic diagram illustrating a power-efficient operation control device for a smart terminal, in accordance with an embodiment of the application. Referring to Fig. 3, the stepless speed changing management module 201 further includes a fourth module 214 configured to, after all the power saving strategies have been implemented, estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, send out a warning message that the electric quantity is too low to reach the destination.

Fig. 4 is a schematic diagram illustrating structure of a power saving strategy implementation module of a control device, in accordance with an embodiment of the application. Referring to Fig. 4, in a preferred embodiment, the power saving strategy implementation module may specifically include at least two of the following power saving strategy executing modules:

a backlight control power saving strategy executing module, configured to execute a smart terminal backlight brightness control strategy, so as to adjust backlight brightness and reduce the backlight brightness of a screen; the lower the brightness, the less power consumption;

a screen and network deactivating power saving strategy executing module, configured to execute a smart terminal network power saving strategy, control the delay time for network disconnection after the screen is turned off; the shorter the delay time, the less power consumption;

a screen control power saving strategy executing module, configured to execute a smart terminal screen timeout control strategy, control the duration from no operation to screen off, that is, to control the duration for the screen to be turned off, when there is no operation; the shorter the duration, the less power consumption;

a process management power saving strategy executing module, configured to execute a smart terminal operating system background process management strategy, control the number of applications which allow an operating system to reside in the background, so as to reduce power consumption;

a forced hibernation power saving strategy executing module, configured to execute a smart terminal forced hibernation strategy, control the duration required from screen off to a forced hibernation state, that is, control when the equipment is forced to hibernate after the screen is turned off, so as to reduce power consumption;

a performance restricting power saving strategy executing module, configured to execute a smart terminal internal equipment performance restricting strategy, control the performance parameters of internal equipment of the smart terminal, such as the frequency of Central Processing Unit (CPU)/Graphics Processing Unit (GPU), so as to save power;

a screen off reminding power saving strategy executing module, configured to execute a smart terminal screen off reminding control strategy, deactivate a screen off reminding function of the screen, so as to reduce power consumption;

a resolution reduction power saving strategy executing module, configured to execute a smart terminal screen resolution reduction strategy, control and adjust a screen resolution of the smart terminal; the lower the resolution, the less power consumption;

a display area power saving strategy executing module, configured to execute a smart terminal screen display area control strategy, reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background; the smaller the main display area, the less power consumption;

a display gray-scale power saving strategy executing module, configured to execute a smart terminal screen gray-scale control strategy, display a screen picture as a gray-scale image; the smaller the gray-scale value, the less power consumption;

a wireless device power saving strategy executing module, configured to execute a smart terminal wireless device control strategy, shut down the wireless devices of the smart terminal, for example, control on and off of WIFI, Bluetooth, Global Positioning System (GPS), Non-Contact Radio Frequency Identification (NFC), Mobile Data, Hot Spot, even flashlight and other devices to reduce power consumption.

Of course, in addition to the above power saving strategy execution modules, other power saving strategy execution modules may be included for executing other power saving strategies.

After the smart terminal enters the stepless speed changing power saving mode, the stepless speed changing management module is mainly configured to manage the power saving strategy, re-estimate whether the currently implemented power saving strategy and the power saving factor can enable the equipment to last to the destination as the battery level decreases gradually, if not, add more aggressive power saving strategies which have not been implemented in time, and for the implemented power saving strategies, make the control parameters of each power saving strategy gradually aggressive through a control process characterized in stepless smooth transition, so as to ensure good user experience and prolong the battery life.

Each power saving strategy used in strategy management includes a corresponding power saving factor:

(1) backlight control power saving strategy: configured to reduce the backlight brightness of the screen, and the corresponding power saving factor is backlight brightness discount rate, which may be, for example, 99%, 98%, 97% ... 80%, 79%, 78% ... in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the backlight brightness discount rate is also gradually decreased synchronously from high to low.

(2) Screen and network deactivating power saving strategy: configured to control the delay time for network disconnection after the screen is turned off, and the corresponding power saving factor is the delay time for network disconnection after the screen is turned off, which may be, for example, 30 min, 29 min, 28 min ... 3 min, 2 min and 1 min in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the delay time for network disconnection after the screen is turned off is also gradually reduced synchronously from high to low.

(3) Screen timeout power saving strategy: configured to control the duration from no operation to screen off, and the corresponding power saving factor is the duration from no operation to screen off, which may be, for example, 30s, 29s, 28s ... 7s, 6s, 5s in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the duration from no operation to screen off is also gradually reduced.

(4) Process management power saving strategy: configured to control the number of applications which allow an operating system to reside in the background, and the corresponding power saving factor is the number of applications which allow an operating system to reside in the background, which may be, for example, 20, 19, 18 ... 3, 2, 1 in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the number of applications which allow an operating system to reside in the background is also gradually reduced.

(5) Forced hibernation power saving strategy: configured to control the duration required from screen off to a forced hibernation state, and the corresponding power saving factor is the duration required from screen off to a forced hibernation state, which may be, for example, 10 min, 9 min ... 2 min, 1 min in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the duration required from screen off to a forced hibernation state is also gradually reduced.

(6) Performance restricting power saving strategy: configured to control the performance parameters of internal equipment of the smart terminal, such as the frequency adjustment of a CPU/ GPU/double rate memory (DDR), the corresponding power saving factor is the performance parameters of internal equipment of the smart terminal, such as the frequency of CPU/GPU/DDR, which may be, for example, 2.1 GHz, 1.6 GHz, ... 800 MHz, 600 MHz, ... in descending order of the power consumption rate, and the specific level should be supported by CPUSet of the smart terminal; if the power saving strategy is started, when the remaining power gradually decreases, the frequency of CPU/GPU/DDR is also gradually reduced.

(7) Screen off reminding power saving strategy: configured to deactivate a screen off reminding function of the screen, and the corresponding power saving factor is on and off of the screen off reminding function, which may be, for example, ON -> OFF in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases to a certain specified critical point, the screen off reminding function is switched to be off from on.

(8) Resolution reduction strategy: configured to control and adjust a screen resolution of the smart terminal, the corresponding power saving factor is the screen resolution parameters of the smart terminal, which may be, for example, ultra high definition (QHD), full high definition (FHD) and high definition (HD) in descending order of the power consumption rate, and the specific value depends on the provision capability of the display screen of the smart terminal; if the power saving strategy is started, when the remaining power gradually decreases, the screen resolution parameters are also gradually reduced.

(9) Display area power saving strategy: configured to reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background, and the corresponding power saving factor is a reduction scale of the main display area, which may be, for example, 70%, 60%, 50% or even lower in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the reduction scale of the main display area is also gradually reduced to save power in a more aggressive manner.

(10) Display gray-scale power saving strategy: configured to display a screen picture as a gray-scale image, and the corresponding power saving factor is a gray-scale value of the screen picture, which may be, for example, 99%, 98%, 97% ... 80%, 79%, 78% ... in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the gray-scale value of the screen picture is also gradually reduced.

(11) Wireless device power saving strategy: configured to shut down the wireless devices of the smart terminal, such as Wifi devices/BT devices/GPS devices, and the corresponding power saving factor is on and off of each wireless device, which may be, for example, the number of wireless devices being turned off, i.e., the number of ON -> OFF, in descending order of the power consumption rate; if the power saving strategy is started, when the remaining power gradually decreases, the number of wireless devices being turned off is gradually increased.

(12) Other power saving strategies.

The various power saving strategies in strategy management are ranked in advance, according to an ascending order of the aggressive degree. Furthermore, the power saving strategies are not implemented at one time, but implemented multiple times smartly, according to the remaining battery life and the aggressive degree of each strategy. The following is a further example:

In block (1): for the duration a-b required to reach the target location A from the current location B and the remaining battery life c, if (a-b) > c, estimate the battery life increasing time corresponding to unimplemented power saving strategies in sequence, according to a descending order of the aggressive degree of the power saving strategies, once estimating a battery life increasing time of a power saving strategy, add the estimated battery life increasing time into the remaining battery life c, till (a-b) < c, assuming that power saving strategy 1, power saving strategy 2, power saving strategy 3, power saving strategy 4 and power saving strategy 5 need to be implemented at this point, and the corresponding power saving factors are applied, remind the user to enter the stepless speed changing smart power saving mode, and the electric quantity at this point is L%.

In block (2): when the current electric quantity drops to L-1%, re-estimate and evaluate whether the implemented power saving strategies can guarantee the endurance of the smart terminal to the destination, if so, continue to apply more aggressive power saving factor control parameters to the implemented power saving strategy modules, if not, like in block (1), for various unimplemented power saving strategies, continue to sequentially estimate the battery life increasing time corresponding to the unimplemented power saving strategies, once estimating a battery life increasing time of a power saving strategy, add the estimated battery life increasing time into the remaining battery life c till the smart terminal has enough power to reach the destination, and at this time, power saving strategy 6, power saving strategy 7... need to be implemented and the corresponding power saving factors are used.

In block (3): when the electric quantity continues to drop to L-2%, the processing flow is similar to block (2).

In block (4): if the electric quantity continues to drop and is greater than 1%, the processing flow is the same as block (3). If all the power saving strategies are implemented but still cannot enable the smart terminal to last to the destination, the user is reminded of low battery indicating that the smart terminal cannot reach the destination under the current use conditions.

The power saving strategies control the power saving factor parameters to be gradually aggressive, and the whole control process is characterized in stepless smooth transition, realizing the balance between user experience and endurance.

Fig. 5 is an operation flow chart of a power-efficient operation control device for a smart terminal, in accordance with an embodiment of the application. Referring to Fig. 5, the following blocks are mainly included:

In block 51: a scene identification module collects information, monitors the state of a mobile phone, and identifies a target scene according to the collected information. For example, through machine learning, data analysis, artificial intelligence and other methods, the travel schedule and traffic habit information, such as subway and bus information, of the user are analyzed and identified. For example, the destination A and time information a are determined according to the travel schedule of the user, the departure place B and time information b are determined according to the displacement of the smart terminal, the remaining battery life c of a battery of the smart terminal is estimated, and when (a-b) > c, it is determined that the current electric quantity is not enough for reaching the destination, and subsequent blocks are executed.

In block 52: assuming that the current electric quantity is L%, the stepless speed changing management module sorts and estimates the unimplemented power saving strategies in ascending order of the aggressive degree, and n power saving strategies need to be implemented to ensure that the smart terminal lasts to the destination.

In block 53: a dialog box pops up to remind the user whether to enter the stepless speed changing smart power saving mode, and inform the user of the battery life increasing time.

In block 54: after confirming entering the stepless speed changing power saving mode, the stepless speed changing management module calls the power saving strategy executing modules to execute the n power saving strategies estimated previously.

In block 55: for the n power saving strategies implemented in the power saving strategy executing modules, along with the decrease of electric quantity by the specified amount, for example, the electric quantity decreases to 1%, the electric quantity decreases to L-1%, corresponding strategies are called with gradually aggressive power saving factors to control the smart terminal to reduce power consumption, and the whole control process is characterized in stepless smooth transition. At the same time, the stepless speed changing management module re-estimates whether the currently implemented n power saving strategies can guarantee the endurance of the smart terminal to the destination, and if so, continue to perform block (55). If not, like block (52), for the n+1, n+2, ... power saving strategies which have not been implemented, the corresponding battery life increasing time is estimated one by one and added to the remaining battery life till the smart terminal has enough power to reach the destination, the power saving strategy executing modules are called to execute the newly estimated n+1, ..., n+j power saving strategies, and block (55) is repeatedly executed.

In block 56: when the electric quantity continues to drop to L-2%, the processing flow is the same as (55) till the electric quantity drops to 1%.

In block 57: if all the power saving strategies are implemented but still cannot enable the smart terminal to last to the destination, the user is reminded of low battery indicating that the smart terminal cannot reach the destination under the current use conditions.

In block 58: at any time, as long as the smart terminal is in the charging state, exit the stepless speed changing smart power saving mode.

In the following, a specific embodiment of the application will be further described with reference to a specific embodiment scene. The following embodiment scene is only used to explain the technical scheme of the application more clearly, and cannot be used to limit the protection scope of the application.

Embodiment scene 1: Trip Scene

Fig. 6 is a schematic diagram of a trip scene.

In block 11: a user leaves place A (home/hotel) and is expected to arrive at B (airport/railway station) after 3 hours, according to the power consumption usage habit of the user, the battery life is only 2 hours, and after evaluation by a management unit, the battery life can be extended by 1.5 hours after implementing n power saving strategies.

In block 12: a dialog box pops up on the smart terminal to remind the user that it takes 3 hours to reach the destination B, at this point, the battery life is only 2 hours, and the electric quantity is not enough to reach the destination B (the next rechargeable power supply site), and it is recommended that the user enters the stepless speed changing smart power saving mode, in which the battery life of the device can be extended by 1.5 hours to the destination.

In block 13: the stepless speed changing smart power saving mode is on after confirmation by the user, and the on/off status is displayed in a notification bar. With the decrease of electricity quantity, the management unit conducts evaluation and timely adds the implementation of more aggressive power saving strategies which have not been implemented, and intensifies the power saving factors of the implemented power saving strategies step by step, so that stepless smooth transition of the control process is realized.

In block 14: when the device is connected to the power supply for charging, exit the mode.

Embodiment scene 2: Commuting Scene

Fig. 7 is a schematic diagram of a commuting scene.

In block 21: a user commutes between company A and home B, and after a scene is identified through machine learning, data analysis, artificial intelligence and other methods, according to the real-time road conditions, it is calculated that 3 hours will be adopted to take the bus/subway. However, according to the current power consumption situation of the user, the battery life of the device is only 1.5 hours, and after evaluation by the management unit, the battery life can be extended by 2 hours after implementing n power saving strategies.

In block 22: a dialog box pops up on the device to remind the user that the power is not enough to reach the destination, suggesting the user to enter the stepless speed changing smart power saving mode, so as to help the user extend the endurance of the device for 2 hours to the destination.

In block 23: the stepless speed changing smart power saving mode is on after confirmation by the user, and the on/off status is displayed in a notification bar. With the gradual decrease of electricity quantity, the management unit conducts evaluation and timely adds the implementation of more aggressive power saving strategies which have not been implemented, and intensifies the power saving factors of the implemented power saving strategies step by step, so that stepless smooth transition of the control process is realized.

In block 24: when the device is connected to the power supply for charging, exit the mode.

In view of above, the application discloses an implementation method of a stepless speed changing smart power saving mode supporting scene identification. On the smart terminal, scene identification and battery usage estimation time are integrated to remind the user to enter a stepless speed changing smart power saving mode, so as to ensure that the equipment can last to the destination. When the electric quantity of the smart terminal drops, the technical implementation scheme of the application can automatically identify the scene according to information, such as terminal position movement, estimated battery life, travel schedule plan, and artificial intelligence, if the condition is met, a reminder pops up, and the user is recommended to enter a stepless speed changing smart power saving mode. When the smart terminal enters this mode, various power saving strategies are automatically evaluated and implemented according to the gradual reduction of electric quantity, each power saving strategy implements gradually aggressive power saving factors, and stepless smooth transition of the whole control process is realized. The balance between user experience and power saving is ensured, the effect of "I know you, I help you" is realized, and it is ensured that the equipment has enough power to reach the destination.

Compared with the prior art, the application has more power saving strategies besides scene capture, and the power saving strategies are not all implemented at one time, but implemented multiple times smartly according to the remaining battery life and the aggressive degree of each strategy. The parameters of the sub-strategies are gradually adjusted, there is no "ladder sense" in user experience, and stepless smooth transition is realized. The application can also remind the user to enter the power saving mode through the remaining battery life of the smart terminal, the change time of the geographical position, the schedule plan, artificial intelligence and the like, and automatically adjust the power saving strategies in the power saving mode. Compared with the prior art, the application can also save power by automatically evaluating and implementing various power saving strategies for many times, such as controlling backlight, screen background, and number of processes, and has a better power saving effect.

In addition, various functional modules in each embodiment of the application may be integrated into one processing unit, or physically present separately, or two or more modules may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units. The functional modules of the various embodiments may be located at one terminal or network node, or may be distributed to multiple terminals or network nodes.

In addition, each embodiment of the application may be implemented by a data processing program executed by a data processing device such as a computer. Obviously, the data processing program constitutes the application. In addition, the data processing program normally stored in a storage medium is executed by being directly read out of the storage medium or being installed or copied to a storage device (such as a hard disk and/or memory) of a data processing device. Therefore, such a storage medium also constitutes the application. The storage medium may use any type of recording method, such as paper storage medium (such as paper tape), magnetic storage medium (such as floppy disk, hard disk, and flash memory), optical storage medium (such as CD-ROM), and magneto-optical storage medium (such as MO).

Therefore, the application also discloses a storage medium, in which a data processing program for executing any one of the embodiments of the above method of the application is stored.

In addition, the method blocks described in the application can be implemented not only by the data processing program, but also by hardware, for example, by logic gates, switches, application specific integrated circuits (ASIC), programmable logic controllers, and embedded microcontrollers. Therefore, the hardware which can implement the method of the application can also constitute the application.

The above description is only a preferred embodiment of the application and is not intended to limit the application. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the application shall be included within the scope of protection of the application.

Claims

A power-efficient operation control method for a smart terminal, comprising:

setting at least two power saving strategies for the smart terminal, wherein a power saving factor is correspondingly set in each power saving strategy, and the power saving factor corresponds to a power consumption rate;

identifying a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than a duration TA required to reach a target location, estimating a battery life increasing time corresponding to each unimplemented power saving strategy in sequence, when estimating a battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into a remaining battery life TB, and when TB is greater than or equal to TA, entering a stepless speed changing power saving mode and executing as follows:

A1, implementing an estimated power saving strategy;

A2, when monitoring a drop in an electric quantity of the smart terminal, gradually reducing a value of the power saving factor of the implemented power saving strategy, re-estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeating A2 if TB is greater than or equal to TA; and if TB is less than TA, executing A3; and

A3, continuing to sequentially estimate the battery life increasing time corresponding to the unimplemented power saving strategies, when estimating the battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and returning to A1 when TB is greater than or equal to TA.
The method according to claim 1, wherein the power saving strategies are ranked according to a descending order of an aggressive degree, the power saving factors in each power saving strategy are ranked according to a descending order of the power consumption rate; and

wherein sequentially estimating the battery life increasing time corresponding to the unimplemented power saving strategies comprises: sequentially estimating the battery life increasing time corresponding to the unimplemented power saving strategies, according to the order of the aggressive degrees of the power saving strategies.
The method according to claim 1, wherein identifying the target scene where the user is about to go comprises:

according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identifying the target scene where the user is about to go, and determining the duration TA required to reach the target location from a current location; and determining the current remaining battery life TB of the smart terminal.
The method according to claim 1, further comprising:

when TB is greater than or equal to TA, before entering the stepless speed changing power saving mode, triggering a reminder of the stepless speed changing power saving mode, and triggering the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction confirming the entering of the stepless speed changing power saving mode.
The method according to claim 1, further comprising:

after all the power saving strategies have been implemented, estimating the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, sending out a warning message that the electric quantity is too low to reach the destination.
The method according to claim 1, wherein the power saving strategies comprise at least two of the following power saving strategies:

a smart terminal backlight control power saving strategy, configured to reduce a backlight brightness of a screen;

a smart terminal screen and network deactivating power saving strategy, configured to control a delay time for network disconnection after the screen is turned off;

a smart terminal screen timeout power saving strategy, configured to control a duration from no operation to screen off;

a smart terminal process management power saving strategy, configured to control the number of applications which allow an operating system to reside in the background;

a smart terminal forced hibernation power saving strategy, configured to control a duration required from screen off to a forced hibernation state;

a smart terminal performance restricting power saving strategy, configured to control performance parameters of internal equipment of the smart terminal;

a smart terminal screen off reminding power saving strategy, configured to deactivate a screen off reminding function of the screen;

a smart terminal resolution reduction power saving strategy, configured to control and adjust a screen resolution of the smart terminal;

a terminal display area power saving strategy, configured to reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background;

a smart terminal display gray-scale power saving strategy, configured to display a screen picture as a gray-scale image; and

a smart terminal wireless control power saving strategy, configured to shut down wireless devices of the smart terminal.
The method according to claim 6, wherein the power saving factor corresponds to the smart terminal backlight control power saving strategy is a backlight brightness discount rate;

the power saving factor corresponding to the smart terminal screen and network deactivating power saving strategy is the delay time for network disconnection after the screen is turned off;

the power saving factor corresponding to the smart terminal screen timeout power saving strategy is the duration from no operation to screen off;

the power saving factor corresponding to the smart terminal process management power saving strategy is the number of applications which allow the operating system to reside in the background;

the power saving factor corresponding to the smart terminal forced hibernation power saving strategy is the duration required from screen off to the forced hibernation state;

the power saving factor corresponding to the smart terminal performance restricting power saving strategy is the performance parameters of the internal equipment of the smart terminal;

the power saving factor corresponding to the smart terminal screen off reminding power saving strategy is on and off of the screen off reminding function;

the power saving factor corresponding to the smart terminal resolution reduction power saving strategy is the screen resolution parameters of the smart terminal;

the power saving factor corresponding to the terminal display area power saving strategy is a reduction scale of the main display area;

the power saving factor corresponding to the smart terminal display gray-scale power saving strategy is a gray-scale value of the screen picture; and

the power saving factor corresponding to the smart terminal wireless device power saving strategy is on and off of each wireless device of the smart terminal.
A power-efficient operation control device for a smart terminal, comprising:

a stepless speed changing management module, configured to set at least two power saving strategies for the smart terminal, wherein a power saving factor is correspondingly set in each power saving strategy, and the power saving factor corresponds to a power consumption rate;

a scene identification module, configured to identify a target scene where a user is about to go, when a current remaining battery life TB of the smart terminal is less than a duration TA required to reach a target location, estimating a battery life increasing time corresponding to each unimplemented power saving strategy in sequence, when estimating a battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and when TB is greater than or equal to TA, trigger the smart terminal to enter a stepless speed changing power saving mode; and

a power saving strategy implementation module, comprising power saving strategy executing modules corresponding to each power saving strategy;

wherein the stepless speed changing management module further comprises a first module, a second module and a third module; after the smart terminal enters the stepless speed changing power saving mode, the stepless speed changing management module is further configured to triggers the first module;

the first module is configured to implement the power saving strategy already estimated by the scene identification module;

the second module is configured to, when monitoring a drop in an electric quantity of the smart terminal, gradually reduce a value of the power saving factor of the implemented power saving strategy, re-estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategy, and repeat an execution process of the second module if TB is greater than or equal to TA; and if TB is less than TA, trigger the third module; and

the third module is configured to continue to sequentially estimate the battery life increasing time corresponding to each unimplemented power saving strategy, when estimating the battery life increasing time of a power saving strategy, adding the estimated battery life increasing time into the remaining battery life TB, and return to the first module when TB is greater than or equal to TA.
The control device according to claim 8, wherein the scene identification module is further configured to, according to a travel plan of the user, historical traffic information and/or a current displacement change of the smart terminal, identify the target scene where the user is about to go, determine the duration TA required to reach the target location from a current location; and determine a current remaining battery life TB of the smart terminal.
The control device according to claim 8, wherein the scene identification module is further configured to, when TB is greater than or equal to TA, before entering the stepless speed changing power saving mode, trigger a reminder of the stepless speed changing power saving mode, and trigger the smart terminal to enter the stepless speed changing power saving mode, after receiving an instruction confirming the entering of the stepless speed changing power saving mode.
The control device according to claim 8, wherein the stepless speed changing management module further comprises a fourth module configured to, after all the power saving strategies are implemented, estimate the remaining battery life TB of the smart terminal which has implemented the power saving strategies, and if TB is less than TA, send out a warning message that the electric quantity is too low to reach the destination.
The control device according to claim 8, wherein the power saving strategy implementation module comprises at least two of the following power saving strategy executing modules:

a backlight control power saving strategy executing module, configured to execute a smart terminal backlight brightness control strategy, reduce a backlight brightness of a screen;

a screen and network deactivating power saving strategy executing module, configured to execute a smart terminal network power saving strategy, control a delay time for network disconnection after the screen is turned off;

a screen timeout power saving strategy executing module, configured to execute a smart terminal screen timeout control strategy, control a duration from no operation to screen off;

a process management power saving strategy executing module, configured to execute a smart terminal operating system background process management strategy, control the number of applications which allow an operating system to reside in the background;

a forced hibernation power saving strategy executing module, configured to execute a smart terminal forced hibernation strategy, control a duration required from screen off to a forced hibernation state;

a performance restricting power saving strategy executing module, configured to execute a smart terminal internal equipment performance restricting strategy, control performance parameters of internal equipment of the smart terminal;

a screen off reminding power saving strategy executing module, configured to execute a smart terminal screen off reminding control strategy, deactivate a screen off reminding function of the screen;

a resolution reduction power saving strategy executing module, configured to execute a smart terminal screen resolution reduction strategy, control and adjust a screen resolution of the smart terminal;

a display area power saving strategy executing module, configured to execute a smart terminal screen display area control strategy, reduce a main display area on the screen, and display a peripheral area beyond the main display area as a black background;

a display gray-scale power saving strategy executing module, configured to execute a smart terminal screen gray-scale control strategy, display a screen picture as a gray-scale image; and

a wireless device power saving strategy executing module, configured to execute a smart terminal wireless device control strategy, shut down wireless devices of the smart terminal.
The control device according to claim 12, wherein the power saving factor corresponding to the smart terminal backlight control power saving strategy is a backlight brightness discount rate;

the power saving factor corresponding to the smart terminal screen and network deactivating power saving strategy is the delay time for network disconnection after the screen is turned off;

the power saving factor corresponding to the smart terminal screen timeout power saving strategy is the duration from no operation to screen off;

the power saving factor corresponding to the smart terminal process management power saving strategy is the number of applications which allow the operating system to reside in the background;

the power saving factor corresponding to the smart terminal forced hibernation power saving strategy is the duration required from screen off to the forced hibernation state;

the power saving factor corresponding to the smart terminal performance restricting power saving strategy is the performance parameters of the internal equipment of the smart terminal;

the power saving factor corresponding to the smart terminal screen off reminding power saving strategy is on and off of the screen off reminding function;

the power saving factor corresponding to the smart terminal resolution reduction power saving strategy is the screen resolution parameters of the smart terminal;

the power saving factor corresponding to the smart terminal display area power saving strategy is a reduction scale of the main display area;

the power saving factor corresponding to the smart terminal display gray-scale power saving strategy is a gray-scale value of the screen picture; and

the power saving factor corresponding to the smart terminal wireless device power saving strategy is on and off of each wireless device of the smart terminal.