CN104020837B - audio playing power management method and power management device - Google Patents

audio playing power management method and power management device Download PDF

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Publication number
CN104020837B
CN104020837B CN201410275902.6A CN201410275902A CN104020837B CN 104020837 B CN104020837 B CN 104020837B CN 201410275902 A CN201410275902 A CN 201410275902A CN 104020837 B CN104020837 B CN 104020837B
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China
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operating frequency
lock
frequency
processing unit
central processing
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CN201410275902.6A
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Chinese (zh)
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CN104020837A (en
Inventor
朱振华
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珠海全志科技股份有限公司
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Publication of CN104020837A publication Critical patent/CN104020837A/en
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Abstract

The invention provides an audio playing power management method and a power management device. The method includes the steps that after an audio player is started, an audio playing wakeup lock is set; after an instruction of turning off a display screen is received, a central processing unit adjusts self working frequency and/or the working frequency of a random access memory, so that the central processing unit works at the first working frequency and/or the random access memory works at the second working frequency; a current wakeup lock list is queried, and whether the current wakeup lock list only contains the audio playing wakeup lock is judged; if yes, the central processing unit is set to work at the third working frequency and/or the random access memory works at the fourth working frequency, wherein the third working frequency is lower than the first working frequency, and the fourth working frequency is lower than the second working frequency. The power management device manages a power supply of an electronic device through the audio playing power management method. Through the audio playing power management method and the power management device, electric energy consumed by the electronic device for music playing in the blank screen process can be reduced, so that the electric energy consumed by the electronic device is saved.

Description

Audio frequency plays method for managing power supply and electric power controller

Technical field

The present invention relates to the field of power management of electronic equipment, specifically power supply pipe when electronic equipment audio frequency is play Reason method and the device realizing this method.

Background technology

Portable electric appts now, as mobile phone, panel computer, portable music player etc. are respectively provided with broadcasting music Function, generally in electronic equipment, setting audio player is used for playing various audio frequency, such as song etc..

Because the display screen of present electronic equipment is increasing, the backlight of such as display screen lights for a long time, is greatly disappeared The electric energy of consumption electronic equipment, leads to the energy consumption of electronic equipment too high, and therefore, people are not generally when needing to watch display screen Display screen is closed, electronic equipment turns off the light source of display backlight, now display screen is completely black, commonly referred to " blank screen ".So And, after the display screen of electronic equipment is closed, electronic equipment continues to work, such as plays audio frequency, downloading data, data transfer etc., Therefore electronic equipment can't because the backlight of display screen close and enter completely resting state, usual central processing unit and with Machine memorizer still keeps the work to meet electronic equipment of higher operating frequency.

Generally, after the backlight in the display screen of electronic equipment is closed, central processing unit is by the operation according to electronic equipment The operating frequency of status adjustment itself, and adjust the operating frequency of random access memory, generally by central processing unit and at random The operating frequency of memorizer is turned down, i.e. subnormal operating frequency, to save the electric energy of electronic equipment consumption.Now, electronics Equipment actually enters either shallow park mode, and that is, central processing unit and random access memory are operated in the mould of relatively low operating frequency Under formula.

Under either shallow park mode, central processing unit and random access memory are not complete dormancy it is still necessary to keep one Fixed operating frequency, to meet the job demand of electronic equipment, such as plays audio frequency, data transfer etc..Display screen as electronic equipment Backlight be closed and do not have other run imaging, then electronic equipment enter deep power down mode, now central processing unit And the operating frequency of random access memory is lower, to save the electric energy of electronic equipment consumption further.

In order to ensure electronic equipment is after the backlight of display screen is closed, central processing unit can determine entrance either shallow in time Park mode or deep power down mode, setting generally on framework (framework) layer of electronic equipment wakes up lock (wake Lock), after a certain program brings into operation, the corresponding wake-up of this program will be set automatically and lock, electronic equipment will be called out arranging one The list of awake lock, wakes up and records in lock list which program is provided with wake-up and locks, thus can after the backlight of display screen is closed Determine whether program so that lock list is waken up by inquiry still in running background, central processing unit according in wake-up lock list is No have wake-up lock to judge whether to enter deep power down mode or either shallow park mode.

But, such as electronic equipment enters either shallow park mode, and the operating frequency of central processing unit and random access memory is still relatively Only in running background audio player, then central processing unit and the operating frequency of random access memory are far above for height, such as electronic equipment Meet the requirement of audio player background work, lead to the electric energy that electronic equipment consumes under either shallow park mode excessive, impact The power consumption of electronic equipment, also leads to the power consumption of electronic equipment too fast, is unfavorable for the long-time use of electronic equipment.

Content of the invention

The main object of the present invention is to provide a kind of audio frequency reducing power consumption when audio frequency play by electronic equipment to play Method for managing power supply.

It is a further object of the present invention to provide what a kind of audio frequency extending use time after electronic equipment once charges was play Electric power controller.

In order to realize above-mentioned main purpose, the method for managing power supply of the audio frequency broadcasting that the present invention provides includes broadcasting in audio frequency After putting device startup, setting audio frequency is play and is waken up lock, and after the instruction receiving closing display screen, central processing unit adjusts itself Operating frequency and/or the operating frequency of random access memory, central processing unit is operated under the first operating frequency and/or random storage Only whether device is operated under the second operating frequency, and, inquires about current wake-up lock list, to judge in current wake-up lock list Comprise audio frequency and play wake-up lock, in this way, setting central processing unit is operated under the 3rd operating frequency and/or random access memory work Under the 4th operating frequency, the 3rd operating frequency is less than the first operating frequency, and the 4th operating frequency is less than the second operating frequency.

From such scheme, because central processing unit is after receiving the instruction cutting out display screen, first inquiry wakes up lock Whether only comprise audio frequency in list and play to wake up lock, and only comprise audio frequency play wake up lock when, by central processing unit and/or The operating frequency of random access memory reduces further, thus reducing the electric energy of electronic equipment consumption, therefore electronic device works mould Formula is somewhere between either shallow park mode and deep power down mode.

One preferred scheme is that such as central processing unit, after entering either shallow park mode, judges current wake-up lock row In table in addition to comprising audio frequency and playing wake-up lock, also comprise other and wake up lock, then maintain central processing unit and/or random access memory Operating frequency.

As can be seen here, central processing unit judges to also have under either shallow park mode other to wake up the presence of lock, will not by The operating frequency of central processor and/or random access memory reduces further, maintains the normal work of electronic equipment.

Further scheme is that the 3rd operating frequency is higher than operating frequency under deep power down mode for the central processing unit, 4th operating frequency is higher than operating frequency under deep power down mode for the random access memory.

It can be seen that, central processing unit and random access memory in blank screen and when playing audio frequency, a little higher than deep-sleep of operating frequency Operating frequency under pattern is it can be ensured that the most basic work of electronic equipment is it is ensured that the fluency of electronic device works.

Further scheme is, such as central processing unit, after entering either shallow park mode, judges current wake-up lock row Only comprise audio frequency in table and play wake-up lock, close the power supply of the picture pick-up device of electronic equipment.

As can be seen here, central processing unit passes through to cut out the power supply of the auxiliary equipments such as picture pick-up device, can reduce electricity further The electric energy that sub- equipment consumes.

For realizing above-mentioned another object, the electric power controller of the audio frequency broadcasting that the present invention provides includes audio frequency broadcasting and calls out Wake up and lock setup module, setting audio frequency is play to wake up and locked after audio player starts;Either shallow dormancy setup module, is receiving pass After closing the instruction of display screen, central processing unit adjusts the operating frequency of itself and/or the operating frequency of random access memory, centre Reason device is operated under the first operating frequency and/or random access memory is operated under the second operating frequency, and, also sets up audio frequency and broadcast Power consumption of loweing setup module, inquires about current wake-up lock list, judges that whether only comprising audio frequency in current wake-up lock list broadcasts Put wake-up lock, in this way, setting central processing unit is operated under the 3rd operating frequency and/or random access memory is operated in the 4th work Under frequency, the 3rd operating frequency is less than the first operating frequency, and the 4th operating frequency is less than the second operating frequency.

From such scheme, central processing unit cuts out display screen in electronic equipment and only has audio player to transport on backstage During row, the operating frequency of the operating frequency of itself and/or random access memory is reduced, the electricity of electronic equipment consumption can be saved Can, electronic equipment can for longer periods continuous firing after once charging.

Brief description

Fig. 1 is the block diagram that audio frequency of the present invention plays electric power controller embodiment.

Fig. 2 is the flow chart that audio frequency of the present invention plays method for managing power supply embodiment.

Below in conjunction with drawings and Examples, the invention will be further described.

Specific embodiment

The audio frequency of the present invention is play method for managing power supply and is used on a portable electronic device, such as mobile phone, panel computer, just Take formula music player etc., the audio frequency of the present invention is play electric power controller and is used for realizing above-mentioned method for managing power supply.

Application the present invention electronic equipment there is central processing unit (cpu), and be provided with dynamic RAM (dram) with And nonvolatile memory, the such as memorizer such as rom, flash, nonvolatile memory is used for storage of electronic, such as audio frequency number According to, video data, electronic pictures etc..When electronic equipment runs, various application programs are run by central processing unit, such as play audio frequency When, open audio player, and the voice data that reading non-volatile storage is stored, it is decoded by audio decoder After be converted into analogue signal play.And, central processing unit accesses nonvolatile memory by dynamic RAM.

When electronic equipment runs, it usually needs open display screen, electronic equipment is provided with the back of the body providing backlight for display screen Optical drive module, for controlling the open and close of the light sources such as led.When display screen opened by electronic equipment, drive module Light source is controlled to open, central processing unit control display screen shows corresponding content, if desired for closing display screen, then drive module control Light source processed is closed, and display screen shows blank screen in the case of lacking backlight.Now, central processing unit need not export to display screen and need Data to be shown, its operating frequency can reduce.

Referring to Fig. 1, audio frequency is play electric power controller and is had audio frequency wake-up lock setup module 11, the setting of either shallow park mode Module 12, audio frequency are play low-power consumption setup module 13 and are waken up lock list 14, and its sound intermediate frequency wakes up lock setup module 11, either shallow It is all the program run by central processing unit that park mode setup module 12, audio frequency play low-power consumption setup module 13.

After electronic equipment runs, such as user opens audio player, and central processing unit runs audio player program, and And central processing unit reads, by dynamic RAM, the voice data being stored in nonvolatile memory, by central processing unit Voice data is decoded.Meanwhile, the operating system of electronic equipment, such as Android operation system is at ccf layer (framework) Upper setting automatically wake-up lock (wake lock) related to audio player.In the present embodiment, set audio player phase The wake-up closed is locked to play for audio frequency and is waken up lock, such as audio out or audio mix etc., and ccf layer is according to audio player plays The different wake-ups lock of the different setting of song.

Audio frequency wakes up lock setup module 11 and automatically arrange after audio frequency plays and wake up lock, audio frequency is play wake-up lock and is added to and calls out Wake up in lock list 14.Wake up the list that lock list 14 automatically generates for electronic device system, wake up in lock list 14 Record each wake-up lock that ccf layer generates, each being currently generated can be inquired by inquiry wake-up lock list 14 and call out Wake up and lock.Additionally, electronic equipment often runs an application program all generates corresponding wake-up lock, when such as service data downloads, Generate wake-up lock related to data download procedure etc..When the display screen of electronic equipment is closed, such as central processing unit judges Wake up to lock and in list 14, there are wake-up lock, then central processing unit enters either shallow park mode, maintain just answering in running background Normal work with program.

After audio player starts, central processing unit judges the backlight needing to cut out display screen, such as user exceed predetermined Time does not send operational order to electronic equipment, or user presses power button, and central processing unit passes through to drive mould Block closes the back light of display screen, and display screen is blank screen.Now, either shallow park mode setup module 12 is run, and central authorities are processed Device adjusts the operating frequency of itself according to the current running status of electronic equipment, and arranges the work frequency of dynamic RAM Rate.Generally, operating frequency under display screen is for black state for the central processing unit be slightly less than normal work under frequency, dynamically with Operating frequency under display screen is for black state for the machine memorizer also below operating frequency during electronic equipment normal work, this When, electronic equipment enters either shallow dormancy (early suspend) pattern.The present invention claims central processing unit under either shallow park mode Operating frequency be first frequency, operating frequency under either shallow park mode for the dynamic RAM be the second operating frequency.

After electronic module enters either shallow park mode, central processing unit inquiry wakes up lock list 14, judges to wake up lock list Whether only comprise audio frequency in 14 and play wake-up lock, in this way, then start audio frequency and play low-power consumption setup module 13, central processing unit will The operating frequency of itself is set to the 3rd operating frequency, and the operating frequency of dynamic RAM is set to the 4th work Frequency, and the 3rd operating frequency is less than the first operating frequency, and the 4th operating frequency is less than the second operating frequency.So, central authorities The operating frequency of processor and dynamic RAM is less than the operating frequency under either shallow park mode.

Certainly, in order to ensure the normal work of audio player, the 3rd operating frequency should be above central processing unit in depth Operating frequency under degree park mode, the 4th operating frequency should also be as higher than dynamic RAM under deep power down mode Operating frequency.During the deep power down mode of indication of the present invention, electronic equipment does not run any application program and display screen is blank screen When mode of operation.Generally, the work frequency of electronic equipment central processing unit and dynamic RAM under deep power down mode Rate arranges relatively low, to save the electric energy of electronic equipment consumption.

Wake up in addition to lock as central processing unit inquiry wake-up lock list 14 finds to play except audio frequency, also others wake up Related wake-up lock etc. downloaded by lock, such as data, then maintain central processing unit and dynamic RAM under either shallow park mode Operating frequency, to guarantee the normal operation of other application programs.

Illustrate that audio frequency of the present invention plays the flow process of method for managing power supply with reference to Fig. 2.First, central processing unit is being opened After audio player, automatically obtained audio frequency and play to wake up by ccf layer and lock, and, wake up record audio frequency broadcasting automatically in lock list Wake up lock, i.e. execution step s1.Then, central processing unit execution step s2, judges whether to receive the instruction closing display screen, Press the instruction of power key as received user, or judge that user exceedes the predetermined time and electronic equipment do not carried out Operation etc., central processing unit judges to need to cut out display screen, execution step s3, closes back light by drive module, and Automatically adjust the operating frequency of itself to the first operating frequency, the operating frequency adjusting dynamic RAM is to the second work frequency Rate, enters either shallow park mode.

In step s2, central processing unit is not received by cutting out the instruction of display screen, then continue waiting for.

After electronic equipment enters either shallow park mode, execution step s4, central processing unit inquiry wakes up lock list, and executes Step s5, judges to wake up whether only comprise audio frequency broadcasting wake-up lock in lock list, in this way, execution step s6, by central processing unit Operating frequency be set to the 3rd operating frequency, the operating frequency of dynamic RAM is set to the 4th operating frequency, electricity Sub- equipment enters audio frequency and plays low-power consumption mode.

And, after electronic equipment enters audio frequency broadcasting low-power consumption mode, the power supply of auxiliary equipment can also be closed, such as close The picture pick-up devices such as photographing unit, the power supply of Bluetooth communication equipment, reduce the electric energy that electronic equipment consumes further.

As wake up process in lock list audio frequency play wake up lock outer also have other wake up lock, then maintain central processing unit with The operating frequency of random access memories, electronic equipment is still operated under either shallow park mode.Certainly, as waken up in lock list not Comprise audio frequency and play wake-up lock, but comprise the related wake-up lock of other application programs, electronic equipment also operates in either shallow dormancy mould Under formula.

Application the solution of the present invention, electronic equipment in display screen blank screen and wake up lock list in only comprise audio frequency play call out Wake up lock when, that is, electronic equipment blank screen and only play music when, central processing unit and dynamic RAM work frequency Rate is turned down, and can save the phone of electronic equipment consumption, and the time that electronic equipment uses after once charging is longer.

Certainly, above-described embodiment is only the present invention preferably embodiment, during practical application, can also have and more change Become, for example, when electronic equipment blank screen and only broadcasting music, can only adjust the work of central processing unit or random access memories Working frequency;Or, substitute dynamic RAM using other kinds of random access memory, such change also enables this Bright purpose.

Finally it is emphasized that the invention is not restricted to above-mentioned embodiment, such as the central processing unit of setting with dynamic with The changes such as the change of the operating frequency of machine memorizer, change of Rule of judgment of entrance either shallow park mode also should be included at this In invention scope of the claims.

Claims (10)

1. audio frequency plays method for managing power supply, including
After audio player starts, setting audio frequency is play and is waken up lock;
After receiving the instruction closing display screen, central processing unit adjusts itself operating frequency and/or random access memory Operating frequency, described central processing unit is operated under the first operating frequency and/or random access memory is operated in the second operating frequency Under;
It is characterized in that:
Inquire about current wake-up lock list, judge that whether only comprising described audio frequency in current wake-up lock list plays wake-up lock, In this way, setting central processing unit is operated under the 3rd operating frequency and/or random access memory is operated under the 4th operating frequency, institute State the 3rd operating frequency and be less than described first operating frequency, described 4th operating frequency is less than described second operating frequency.
2. audio frequency according to claim 1 play method for managing power supply it is characterised in that:
As judged to play in addition to wake-up lock except comprising described audio frequency in current wake-up lock list, also comprise other and wake up lock, then Maintain described central processing unit and/or the operating frequency of described random access memory.
3. audio frequency according to claim 1 and 2 play method for managing power supply it is characterised in that:
Described 3rd operating frequency is higher than operating frequency under deep power down mode for the described central processing unit, described 4th work Frequency is higher than operating frequency under deep power down mode for the described random access memory.
4. audio frequency according to claim 1 and 2 play method for managing power supply it is characterised in that:
As judged, only comprising described audio frequency in current wake-up lock list plays wake-up lock, closes the picture pick-up device of electronic equipment Power supply;Described audio player operates on described electronic equipment.
5. audio frequency according to claim 1 and 2 play method for managing power supply it is characterised in that:
Described random access memory is dynamic RAM.
6. audio frequency plays electric power controller, including
Audio frequency is play and is waken up lock setup module, and after audio player starts, setting audio frequency is play and waken up lock;
Either shallow dormancy setup module, after receiving the instruction closing display screen, central processing unit adjusts the operating frequency of itself And/or the operating frequency of random access memory, described central processing unit is operated under the first operating frequency and/or random access memory work Make under the second operating frequency;
It is characterized in that:
Only whether audio frequency plays low-power consumption setup module, inquires about current wake-up lock list, to judge in current wake-up lock list Comprise described audio frequency and play wake-up lock, in this way, setting central processing unit is operated under the 3rd operating frequency and/or random access memory It is operated under the 4th operating frequency, described 3rd operating frequency is less than described first operating frequency, described 4th operating frequency is low In described second operating frequency.
7. audio frequency according to claim 6 play electric power controller it is characterised in that:
Described audio frequency plays low-power consumption setup module as judged to call out except comprising described audio frequency broadcasting in current wake-up lock list Lock of waking up is outer, also comprises other and wakes up lock, then maintains described central processing unit and/or the operating frequency of described random access memory.
8. audio frequency according to claim 6 or 7 play electric power controller it is characterised in that:
Described 3rd operating frequency is higher than operating frequency under deep power down mode for the described central processing unit, described 4th work Frequency is higher than operating frequency under deep power down mode for the described random access memory.
9. audio frequency according to claim 6 or 7 play electric power controller it is characterised in that:
Described audio frequency plays low-power consumption setup module, and as judged, only comprising described audio frequency in current wake-up lock list plays wake-up Lock, cuts out the power supply of the picture pick-up device of electronic equipment;Described audio player operates on described electronic equipment.
10. audio frequency according to claim 6 or 7 play electric power controller it is characterised in that:
Described random access memory is dynamic RAM.
CN201410275902.6A 2014-06-19 2014-06-19 audio playing power management method and power management device CN104020837B (en)

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CN105872642A (en) * 2015-11-06 2016-08-17 乐视移动智能信息技术(北京)有限公司 Method and device for controlling WiHD transmission on mobile phone and related device thereof
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CN105578266B (en) * 2015-12-29 2018-11-27 北京奇艺世纪科技有限公司 Audio and video playing method and multimedia player
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