CN101719965A - Power saving method and device for mobile terminal - Google Patents
Power saving method and device for mobile terminal Download PDFInfo
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- CN101719965A CN101719965A CN200910242032A CN200910242032A CN101719965A CN 101719965 A CN101719965 A CN 101719965A CN 200910242032 A CN200910242032 A CN 200910242032A CN 200910242032 A CN200910242032 A CN 200910242032A CN 101719965 A CN101719965 A CN 101719965A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides power saving method and device for a mobile terminal. The residual energy of a power supply of the mobile terminal is detected in real time, and the detected residual power is compared with a preset first power threshold value; when the residual power is lower than the first power threshold value, the device enters a first power-saving mode, the power of the mobile terminal is saved by reducing and then coding an image resolution ratio, and the working time of the mobile terminal is prolonged.
Description
Technical field
The present invention relates to electronics power-saving technique field, particularly relate to a kind of power-saving method and device of portable terminal.
Background technology
Portable terminal, for example mobile phone, personal digital assistant (PDA, Personal Digital Assistant), Personal Handyphone System etc. as the modern communication instrument, have become the indispensable liaison instrument of people's daily life.Particularly the application of mobile phone is more extensive, and mobile phone brings a lot of convenience for the interchange of people's live and work.Its function constantly is enhanced and improves, and from the technical design that is improved to hommization, has embodied the scientific and technological humanistic care that people-oriented invariably.
Along with social, scientific and technological continuous development and progress, mobile phone develops into the modal mobile phone of second generation mobile phone (2G) from the mobile phone of traditional first generation mobile phone (1G) simulation, develop into third generation mobile phone (3G, full name: 3rdGeneration) from second generation mobile phone (2G).Simultaneously, along with the continuous development of mobile phone, the also more and more polynary change of the function of mobile phone, a mobile phone has also comprised more function such as video calling, game machine, MP3, camera, photography, recording, GPS except that having typical call function.The abundant daily power consumption of mobile phone that makes of these functions constantly increases, and especially with headed by the video calling, can consume the most of electric weight of mobile phone in the video call process.Yet different with the fast development of mobile phone, the stand-by time of mobile phone all is a bottleneck of mobile phone fast development all the time, after the cellphone subscriber frequently uses mobile phone, the mobile phone power consumption sharply descends, and makes mobile phone lose basic conversation and SMS, influences the further use of mobile phone.Problem such in the application of other portable terminal products is also very outstanding.
Therefore because of the present circumstance, the problem that the current those skilled in the art of needs solve is exactly: how to save portable terminal power consumption, and to satisfy the more applications demand, the inconvenience that occurs in avoiding using.
Summary of the invention
Technical problem to be solved by this invention provides a kind of power-saving method and device of portable terminal, can save the power consumption of portable terminal, prolongs the operating time of portable terminal.
In order to address the above problem, the invention discloses a kind of power-saving method of portable terminal, comprising:
Detect portable terminal power supply dump energy in real time;
Real-time detected dump energy and the first electric weight threshold values of presetting are compared;
When described dump energy is lower than the described first electric weight threshold values, enter the first segment power mode, encode again after will image resolution ratio reducing.
Preferably, after in the described method the real-time detected dump energy and the default first electric weight threshold values being compared, also comprise:
Real-time detected dump energy and the second electric weight threshold values of presetting are compared;
When described dump energy is lower than the described second electric weight threshold values, enter second energy-saving mode, by reducing the encoder complexity amount of saving energy.
Preferably, the described first electric weight threshold values is greater than the second electric weight threshold values.
Preferably, the method for described reduction encoder complexity comprises: reduce the filtering complexity, increase encoded interval, reduce the complexity of motion prediction and reduce the infra-frame prediction complexity.
The present invention also provides a kind of device of portable terminal economize on electricity, it is characterized in that, comprising:
Detecting unit: be used for detecting in real time portable terminal power supply dump energy;
First comparing unit: be used for real-time detected dump energy and the first electric weight threshold values of presetting are compared;
First mode switch element: be used for when described dump energy is lower than the described first electric weight threshold values, entering the first segment power mode, by reducing the code distinguishability amount of saving energy.
Preferably, described device also comprises:
Second comparing unit: be used for by behind first comparing unit, real-time detected dump energy and the second electric weight threshold values of presetting are compared;
Second mode switch element: be used for when described dump energy is lower than the described second electric weight threshold values, entering second energy-saving mode, by reducing the encoder complexity amount of saving energy.
Preferably, the described first electric weight threshold values is greater than the second electric weight threshold values.
Compared with prior art, the present invention has the following advantages:
At first, the power-saving method of a kind of portable terminal provided by the present invention and device, by real-time detection portable terminal power supply dump energy, and detected dump energy and the predefined first electric weight threshold values compared, when described dump energy is lower than the described first electric weight threshold values, enter the first segment power mode, realize saving portable terminal power consumption, prolong the operating time of portable terminal by encoding again after image resolution ratio is reduced.
Secondly, after the present invention compares detected dump energy and the predefined first electric weight threshold values, by real-time detected dump energy and the predefined second electric weight threshold values are compared, when described dump energy is lower than the described second electric weight threshold values, enter second energy-saving mode, further save portable terminal power consumption by reducing encoder complexity, thereby further prolong the operating time of portable terminal.
In a word, power-saving method of the present invention and device have been saved the power consumption of portable terminal, have prolonged the operating time of portable terminal, have also reduced the charging times of portable terminal power supply simultaneously, have prolonged the life-span of portable terminal power supply.
Description of drawings
Fig. 1 be the embodiment of the invention described a kind of be the power-saving method flow chart of the portable terminal of example with the mobile phone;
Fig. 2 is the embodiment of the invention one a described video calling process chart;
Fig. 3 be the embodiment of the invention two described a kind of be the power-saving method flow chart of the portable terminal of example with the mobile phone;
Fig. 4 is the method block diagram of the embodiment of the invention two described reduction encoder complexities;
Fig. 5 is the battery saving arrangement structure chart of the embodiment of the invention three described a kind of portable terminals.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
To be elaborated to the power-saving method of portable terminal (for example mobile phone) by embodiment below.
Limited at the mobile phone electric weight, in the video call process, video coding consumes the most of electric weight of mobile phone, video coding in the video calling is handled, to reach the effect that reduces mobile phone power consumption.
Embodiment one:
With reference to Fig. 1, showing the present invention a kind of is the power-saving method flow chart of the portable terminal of example with the mobile phone.
S101, video calling;
The user carries out video calling by mobile phone, and mobile phone is in video call state.
With reference to Fig. 2, the video calling handling process comprises:
S201 is by the camera collection image;
S202 encodes to the video image that collects;
S203 sends the data behind the coding.
Wherein, encoding video pictures consumes most of electric weight of mobile phone, mainly be because point, line and the face of video image on screen all is made up of pixel, pixel is many more, image is accurate more, and the electric weight of the accurate more consumption of image is just many more, and the precision of described image also is the resolution of image, also promptly: the resolution of video image is high more, and the electric weight that is consumed in the video calling is just many more.
S102 detects electric quantity of power supply;
In the whole video communication process, real-time detection of handset power supply dump energy.
S103 judges whether dump energy reaches the first electric weight threshold values a1;
The real-time detected power supply dump energy and the first electric weight threshold values a1 are compared, judge whether dump energy is lower than the first electric weight threshold values a1:
If then carry out S104;
If not, then carry out S105.
S104 will encode after the image resolution ratio reduction again;
S105 keeps the work at present pattern.
Wherein, the first electric weight threshold values a1 can set by the designer is unified before mobile phone dispatches from the factory, and also can be set up on their own by the user.Described first segment power mode is meant after image resolution ratio is reduced and encodes, realizes saving the pattern of electric quantity of power supply.
Because the resolution of video image is high more, the electric weight that is consumed in the video calling is just many more.And in the practical application, the mobile video conversation is not very high to the quality requirement of video image often, and the resolution of video image does not need too high usually.Therefore, can after will image resolution ratio reducing, encode again, high-resolution video image will be reduced to the video image of low resolution, by reducing the quality of video image, realize saving mobile phone power consumption in the video calling, and then prolong the operating handset time.
Preferably, the video image that is reduced to low resolution is dwindled in right amount,, improved the quality of video image, when saving the cellular phone power supplies electric weight, also guaranteed the quality of the video image in the video call process like this by dwindling video image.
Embodiment two:
Enter the first segment power mode in a pair of video calling of the foregoing description, introduce by reducing code distinguishability saving cellular phone power supplies electric weight, present embodiment is the method for the portable terminal electric quantity of power supply of example with further introducing saving with the mobile phone as preferred embodiment.
With reference to Fig. 3, showing the present invention a kind of is the power-saving method flow chart of the portable terminal of example with the mobile phone.
S301, video calling;
S302 detects electric quantity of power supply;
S303 judges whether dump energy reaches the first electric weight threshold values a1;
If then carry out S304;
If not, then carry out S306.
S304, select whether to enter the first segment power mode:
If or do not do selection, carry out S305;
If not, then carry out S306.
S305 will encode after the image resolution ratio reduction again;
S306 keeps the work at present pattern;
S307 judges whether dump energy reaches the second electric weight threshold values a2;
With the first electric weight threshold values a1 relatively intact after, the real-time detected power supply dump energy and the second electric weight threshold values a2 are compared, judge whether dump energy is lower than the second electric weight threshold values a2:
If then carry out S308;
If not, then carry out S3010.
Wherein, the first electric weight threshold values a1 is greater than the second electric weight threshold values a2.
S308, select whether to enter second energy-saving mode:
If or do not do selection, then carry out S309;
If not, then carry out S3010.
S309 reduces encoder complexity;
S3010 keeps the work at present pattern.
Preferably, the user can freely select not enter the first segment power mode or second energy-saving mode according to the actual scene of video calling, makes its application more flexible.
Wherein, the first electric weight threshold values a1 and the second electric weight threshold values a2 can set by the designer is unified before mobile phone dispatches from the factory, and also can be set up on their own by the user.Described second energy-saving mode is meant by encoder complexity, realizes saving the pattern of electric quantity of power supply.
Preferably, with reference to Fig. 4, the method for described reduction encoder complexity comprises: reduce filtering complexity 401, increase encoded interval 402, reduce the complexity 403 of motion prediction and reduce infra-frame prediction complexity 404.Encoder complexity is high more, the video image information amount is big more, the amount of information of mobile phone inter-process is big more, electric quantity of power supply consumption is also just many more, so, in video call process, be not under the very high situation especially to the quality of video image, can further save the power consumption of cellular phone power supplies by the method that reduces encoder complexity, make the operating handset longer time.
Wherein, reduce the filtering complexity, can realize, carry out filtering, change into firstorder filter and carry out filtering as adopting second order filter by the exponent number that reduces filter.
Increase encoded interval, realize, compile a frame image data every 2 frames, change into to compiling a frame image data every 3 two field pictures as camera by the volume frame period that increases view data.
Reduce the complexity of motion prediction, can realize by the precision that reduces motion prediction, as being reduced to 1/2 precision from 1/4 original precision, even integer precision, perhaps change the regional area prediction into from total space prediction.
Reduce the infra-frame prediction complexity, can realize, can also realize by the complexity that reduces search by the spatial dimension that reduces prediction.
Preferably, the complexity of described reduction filtering complexity, the encoded interval that increases, reduction motion prediction and reduction infra-frame prediction complexity, these four kinds of methods can both play the reduction encoder complexity, can select wherein one or more to realize in the application according to actual needs, also these four kinds of methods can be sorted and select automatically according to priority.
In the present embodiment by real-time detection of handset power supply dump energy, when described dump energy is lower than the first electric weight threshold values a1, save cellular phone power supplies power consumption by reducing code distinguishability, and when described dump energy is lower than the second electric weight threshold values a2, by reducing encoder complexity, by reducing the amount of information of video image, reduce picture quality, further save cellular phone power supplies power consumption, prolonged the operating handset time, reduce the cellular phone power supplies charging times, prolonged the cellular phone power supplies life-span.
Power-saving method of the present invention is not limited to mobile phone, is common to comprise that personal digital assistant (PDA, Personal Digital Assistant) and Personal Handyphone System are at other interior mobile terminal devices.
Embodiment three:
At said method embodiment, the present invention also provides a kind of battery saving arrangement embodiment of portable terminal.
With reference to Fig. 5, be the battery saving arrangement structure chart of the described portable terminal of present embodiment, described device comprises:
Detecting unit 501: be used for detecting in real time portable terminal power supply dump energy;
First comparing unit 502: be used for detected dump energy is compared with the first electric weight threshold values a1 that presets;
First mode switch element 503: be used for when described dump energy is lower than the described first electric weight threshold values a1, entering the first segment power mode, by the amount of saving energy of encoding again after image resolution ratio is reduced.
In the battery saving arrangement of the described portable terminal of present embodiment,, monitor portable terminal power supply dump energy in real time by detecting unit 501; By first comparing unit 502, detected dump energy is compared with the first electric weight threshold values a1 that presets; By first mode switch element 503, when described dump energy is lower than the described first electric weight threshold values a1, switch to the first segment power mode, save portable terminal power consumption by encoding again after image resolution ratio is reduced, thereby prolong the portable terminal operating time.
Preferably, described device also comprises:
Second comparing unit 504: be used for by behind first comparing unit 502, detected dump energy and the second electric weight threshold values of presetting are compared;
Second mode switch element 505: be used for when described dump energy is lower than the described second electric weight threshold values a2, entering second energy-saving mode, by reducing the encoder complexity algorithm amount of saving energy.
Wherein, the first electric weight threshold values is greater than the second electric weight threshold values.
In the present embodiment,, detecting unit 501 detected dump energies are compared with the second electric weight threshold values a2 that presets by second comparing unit 504; By second mode switch element 505, when described dump energy is lower than the described second electric weight threshold values a2, switch to second energy-saving mode, save portable terminal power consumption by reducing encoder complexity, thereby further prolong the portable terminal operating time.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For device embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than to the power-saving method and the device of a kind of portable terminal provided by the present invention, be described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. the power-saving method of a portable terminal is characterized in that, comprising:
Detect portable terminal power supply dump energy in real time;
Real-time detected dump energy and the first electric weight threshold values of presetting are compared;
When described dump energy is lower than the described first electric weight threshold values, enter the first segment power mode, encode again after will image resolution ratio reducing.
2. method according to claim 1 is characterized in that, after real-time detected dump energy and the first electric weight threshold values of presetting are compared, also comprises:
Real-time detected dump energy and the second electric weight threshold values of presetting are compared;
When described dump energy is lower than the described second electric weight threshold values, enter second energy-saving mode, by reducing the encoder complexity amount of saving energy.
3. method according to claim 2 is characterized in that:
The described first electric weight threshold values is greater than the second electric weight threshold values.
4. method according to claim 2 is characterized in that:
The method of described reduction encoder complexity comprises: reduce the filtering complexity, increase encoded interval, reduce the complexity of motion prediction and reduce the infra-frame prediction complexity.
5. the device of a portable terminal economize on electricity is characterized in that, comprising:
Detecting unit: be used for detecting in real time portable terminal power supply dump energy;
First comparing unit: be used for real-time detected dump energy and the first electric weight threshold values of presetting are compared;
First mode switch element: be used for when described dump energy is lower than the described first electric weight threshold values, entering the first segment power mode, by reducing the code distinguishability amount of saving energy.
6. device according to claim 5 is characterized in that, described device also comprises:
Second comparing unit: be used for by behind first comparing unit, real-time detected dump energy and the second electric weight threshold values of presetting are compared;
Second mode switch element: be used for when described dump energy is lower than the described second electric weight threshold values, entering second energy-saving mode, by reducing the encoder complexity amount of saving energy.
7. device according to claim 6 is characterized in that:
The described first electric weight threshold values is greater than the second electric weight threshold values.
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| CN200910242032A CN101719965A (en) | 2009-12-03 | 2009-12-03 | Power saving method and device for mobile terminal |
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| CN103442493A (en) * | 2013-09-03 | 2013-12-11 | 英华达（上海）科技有限公司 | Method, device, client, server and system for controlling power driving |
| CN103916622A (en) * | 2013-01-06 | 2014-07-09 | 联想(北京)有限公司 | Talking mode switching method and device |
| CN104375618A (en) * | 2013-08-12 | 2015-02-25 | 联想(北京)有限公司 | Power management method, power management device and electronic device |
| CN104933984A (en) * | 2015-07-20 | 2015-09-23 | 京东方科技集团股份有限公司 | Display device and drive method thereof and drive module |
| CN106254678A (en) * | 2016-09-20 | 2016-12-21 | 西安中科创达软件有限公司 | A kind of call mode switching device based on terminal electric energy and changing method thereof |
| CN106304280A (en) * | 2015-05-11 | 2017-01-04 | 上海和辉光电有限公司 | A kind of power control method and system and mobile terminal |
| CN106412274A (en) * | 2016-09-23 | 2017-02-15 | 乐视控股（北京）有限公司 | Video mode-based power saving method and apparatus |
| CN106455018A (en) * | 2016-09-26 | 2017-02-22 | 维沃移动通信有限公司 | Video call processing method and mobile terminal |
| CN106791002A (en) * | 2016-11-28 | 2017-05-31 | 滁州昭阳电信通讯设备科技有限公司 | The control method and mobile terminal of a kind of video playback |
| CN108111315A (en) * | 2016-11-24 | 2018-06-01 | 北京中创视讯科技有限公司 | Web conference prompts treating method and apparatus |
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| CN108881706A (en) * | 2017-05-16 | 2018-11-23 | 北京三星通信技术研究有限公司 | Control the method and device of multimedia equipment work |
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| CN103442493A (en) * | 2013-09-03 | 2013-12-11 | 英华达（上海）科技有限公司 | Method, device, client, server and system for controlling power driving |
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| CN106412274A (en) * | 2016-09-23 | 2017-02-15 | 乐视控股（北京）有限公司 | Video mode-based power saving method and apparatus |
| CN106455018A (en) * | 2016-09-26 | 2017-02-22 | 维沃移动通信有限公司 | Video call processing method and mobile terminal |
| CN108111315A (en) * | 2016-11-24 | 2018-06-01 | 北京中创视讯科技有限公司 | Web conference prompts treating method and apparatus |
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