CN103531155A - Method and unit for reducing power consumption of mobile device with video recording function in video recording - Google Patents
Method and unit for reducing power consumption of mobile device with video recording function in video recording Download PDFInfo
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- CN103531155A CN103531155A CN201310466281.5A CN201310466281A CN103531155A CN 103531155 A CN103531155 A CN 103531155A CN 201310466281 A CN201310466281 A CN 201310466281A CN 103531155 A CN103531155 A CN 103531155A
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Abstract
A method and a unit for reducing the power consumption of a mobile device with a video recording function in video recording relate to a method for reducing power consumption in video recording. By constructing a functional module architecture, the method is carried out by computer program instructions controlling a computer system, and the computer program instructions are stored in a readable storage medium of the computer. During video recording, the brightness of a current frame of image is acquired once every N frames, moreover, the brightness of the backlight of a display screen is regulated according to the brightness of the current frame of image, the higher the brightness of the current frame of image is, the lower the regulated brightness of the backlight of the display screen is, and N is a positive integer. As the invention can dynamically regulate the brightness of the backlight of the display screen according to the brightness of a video in order to decrease the average brightness of the backlight of the display screen in the process of video recording, the power consumption of the mobile device in video recording can be reduced, and the endurance of the battery can be prolonged.
Description
Technical field
While the present invention relates to a kind of video recording, reduce the method for power consumption, the method, by setting up functional module construction, is controlled computer system by computer program instructions and is completed, and these computer program instructions are stored in computer-readable recording medium.
Background technology
Mobile device, such as digital camera, with mobile phone and the panel computer of recording function, all powers with battery, and due to the restriction of small product size, battery capacity is also often restricted, so the problem of power consumption and continuation of the journey usually perplexs user.Take mobile phone as example, and nowadays giant-screen mobile phone is very universal, these giant-screen mobile phones, and screen display is a power consumption rich and influential family.The screen of the touch control operation on mobile phone, comprise the display screen for showing and the touch-screen operating for responding to user, mobile phone is when recording a video, touch-screen is to be operated in normal mode always, display backlight lamp is also to show according to fixing brightness, this fixing brightness brightness that user arranges usually often, so brightness is generally all larger, simultaneously, key-press backlight lamp is also to keep Chang Liang's, like this, touch-screen, the backlight of display screen and button is when video recording, while particularly recording a video for a long time, can consume a large amount of electric weight, thereby reduce the cruising time of battery.
Summary of the invention
The object of this invention is to provide and a kind ofly can reduce the mobile device power consumption in when video recording, the mobile device with recording function that extends battery life reduces the method for power consumption when video recording.
For achieving the above object, the invention provides following technical scheme.
Mobile device with recording function reduces the method for power consumption when recording a video, and described mobile device is provided with screen, and described screen comprises display screen, and the method for described reduction power consumption comprises the following steps:
While A. recording a video, the brightness of a current frame image of every N frame statistics according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, the brightness of described current frame image is larger, and the brightness of the described display backlight lamp after adjustment is just less, and described N is positive integer.
Wherein, according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, particularly, by the brightness adjustment of described display backlight lamp be described display backlight lamp high-high brightness P doubly, described P=(256-Y)/512, described Y is the brightness of described current frame image, and the brightness of described current frame image is the brightness in YUV color space, and the brightness of described current frame image is the mean flow rate of the whole pixels of current frame image.
Further, if do not receive user's operation signal in default duration, by the brightness adjustment of described display backlight lamp, be just to preset low bright value and maintain described default low bright value, until receive that user's operation signal performs step A again.
Further, described screen also comprises touch-screen, during video recording, the mode of operation of described touch-screen is switched to sleep pattern.
Further, described mobile device is provided with key-press backlight lamp, during video recording, extinguishes described key-press backlight lamp.
The invention has the beneficial effects as follows: when mobile device is recorded a video, according to the brightness of video, dynamically adjust the brightness of display backlight lamp, reduce the mean flow rate of display backlight lamp in video process, thereby reduce the power consumption of mobile device when video recording, extend the cruising time of battery; In addition, when mobile device is recorded a video, the mode of operation of touch-screen is switched to sleep pattern, key-press backlight lamp is also extinguished simultaneously, thereby reduce power consumption further.
Embodiment
Below in conjunction with specific embodiment, the present invention is elaborated.
Take below and the mobile device with recording function of the present invention is reduced to the method (hereinafter referred reduces the method for power consumption during as video recording of the present invention) of power consumption with the mobile phone (hereinafter referred is mobile phone) of recording function when the video recording as example, the method that reduces power consumption while it should be noted that video recording of the present invention is equally applicable on digital camera, panel computer and other mobile devices with recording function with recording function.
Mobile phone is provided with screen, the screen of touch control operation of today has generally included display screen and touch-screen, in existing giant-screen mobile phone, screen is a power consumption rich and influential family, the power consumption of screen often can surpass complete machine power consumption half or more than, when using mobile phone to record a video, described display screen shows according to fixing brightness often, this fixing brightness is the brightness when usually using that user arranges, therefore this fixing brightness is conventionally all larger, simultaneously, when using mobile phone to record a video, described touch-screen is also worked under normal mode, like this, mobile phone is in video process, screen will consume a large amount of electric weight, so when video recording of the present invention reduce power consumption method just mainly when reducing video recording the power consumption of screen set about.
During video recording of the present invention, reduce the method for power consumption, when using mobile phone to record a video, the brightness of a current frame image of every N frame statistics, and according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, the brightness of described current frame image is larger, the brightness of the described display backlight lamp after adjustment is just less, described N is positive integer, in the present embodiment, choose N=10, be the brightness of a current frame image of every 10 frame statistics, like this, by the brightness of dynamic adjustment display backlight lamp, be reduced in the mean flow rate of display backlight lamp in video process, thereby reach the object that reduces power consumption.Meanwhile, when video recording, while particularly recording a video for a long time, user does not conventionally need constantly to stare at screen and sees, therefore the brightness of display backlight lamp is turned down and can't user be experienced and be impacted.
Particularly, in the present embodiment, according to the method for the brightness of display backlight lamp described in the brightness adjustment of described current frame image, be, by the brightness adjustment of described display backlight lamp be described display backlight lamp high-high brightness P doubly, wherein, described P=(256-Y)/512, described Y is the brightness of described current frame image, in the present embodiment, the brightness of described current frame image is the mean flow rate of the whole pixels of current frame image, the brightness of described current frame image is the brightness in YUV color space, therefore the span of Y is [0, 255], 1/512≤P≤0.5, after adjusting, the brilliance control of display backlight lamp is in half of its high-high brightness.According to P=(256-Y)/512, can draw, Y is larger, P is just less, vice versa, that is to say, the brightness of current frame image is larger, the brightness of display backlight lamp is just less, the brightness of current frame image is less, and the brightness of display backlight lamp is just larger, and this is because the brightness of current frame image is large time, it is clear that display backlight lamp only needs less brightness also current frame image can be shown, so adopt such method of adjustment can't have influence on because having turned down the brightness of display backlight lamp the display effect of current frame image.
Further, situation for long-time video recording, the method that reduces power consumption during video recording of the present invention also proposes corresponding technical scheme: if do not receive user's operation signal in default duration, by the brightness adjustment of described display backlight lamp, be just to preset low bright value and maintain described default low bright value, until receive that user's operation signal is again every the brightness of a current frame image of N frame statistics and according to the brightness of display backlight lamp described in described current positive brightness adjustment, wherein said user's operation signal refers to that user operates the corresponding operation signal producing to mobile phone, comprise the touch signal that user's touch screen produces and push button after the push button signalling that produces.In the present embodiment, default duration is 10 minutes, default low bright value has two, be used in respectively two kinds of situations, the first situation is, in default duration, do not receive user's operation signal, if now P > 0.1, default low bright value is 0.1 times of display backlight lamp high-high brightness, the second situation is, in default duration, do not receive user's operation signal, if P≤0.1 now, the brightness value that default low bright value is current display backlight lamp, in this case, without the brightness of adjusting again display backlight lamp, directly maintain current brightness.When recording a video for a long time, user is fixed on mobile phone somewhere often, then just stare at screen has seen no longer always, when seeing concert, with mobile phone, whole concert is filmed, if whole concert all held mobile phone with hand and recorded a video, arm is difficult to bear, now user will be fixed on mobile phone on shelf or other things, then sight is seen to stage and sung rather than sight is seen to mobile phone screen performance, user's necessity of screen that do not see the mobile phone now, so situation of this long-time video recording, if user does not operate mobile phone in default duration, just further turn down the brightness of display backlight lamp, further to reduce power consumption.
When user uses mobile phone video recording, in video process, conventionally can to mobile phone, not operate continually, therefore, further, when video recording, the mode of operation of described touch-screen is switched to sleep pattern, extinguishes described key-press backlight lamp simultaneously, can reduce further power consumption.The mode of operation of touch-screen, except normal mode, also has sleep pattern, difference between two mode of operations, the most obvious one is exactly the frequency that scanning touches incoming event, and the frequency of sleep pattern will be lower than normal mode, after system hibernates, touch-screen is also switched to sleep pattern, touch-screen is operated under sleep pattern, compares normal mode, can reduce significantly power consumption.
As mentioned above, during video recording of the present invention, reduce the method for power consumption by dynamically adjusting the brightness of display backlight lamp, thereby the mean flow rate of display backlight lamp in reduction video process, the mode of operation of touch-screen is switched to sleep pattern simultaneously and extinguishes key-press backlight lamp, from this three aspects:, reduce power consumption, extend the cruising time of battery.
The method providing herein, all or part of step wherein can, by setting up functional module construction, be controlled computer system by computer program instructions and complete.These computer program instructions are stored in computer-readable recording medium.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (10)
1. the mobile device with recording function reduces the method for power consumption when recording a video, and described mobile device is provided with screen, and described screen comprises display screen, it is characterized in that, the method for described reduction power consumption comprises the following steps:
While A. recording a video, the brightness of a current frame image of every N frame statistics according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, the brightness of described current frame image is larger, and the brightness of the described display backlight lamp after adjustment is just less, and described N is positive integer.
2. the mobile device with recording function according to claim 1 reduces the method for power consumption when video recording, it is characterized in that: according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, particularly, by the brightness adjustment of described display backlight lamp be described display backlight lamp high-high brightness P doubly, described P=(256-Y)/512, described Y is the brightness of described current frame image, the brightness of described current frame image is the brightness in YUV color space, and the brightness of described current frame image is the mean flow rate of the whole pixels of current frame image.
3. the mobile device with recording function according to claim 1 and 2 reduces the method for power consumption when video recording, it is characterized in that: if do not receive user's operation signal in default duration, by the brightness adjustment of described display backlight lamp, be just to preset low bright value and maintain described default low bright value, until receive that user's operation signal performs step A again.
4. the mobile device with recording function according to claim 1 reduces the method for power consumption when video recording, it is characterized in that: described screen also comprises touch-screen, during video recording, the mode of operation of described touch-screen is switched to sleep pattern.
5. the mobile device with recording function according to claim 1 reduces the method for power consumption when video recording, it is characterized in that: described mobile device is provided with key-press backlight lamp, during video recording, extinguishes described key-press backlight lamp.
6. the mobile device with recording function reduces the device of power consumption when recording a video, and described mobile device is provided with screen, and described screen comprises display screen, it is characterized in that, the device of described reduction power consumption comprises with lower device:
Device A, during video recording, its every N frame adds up the brightness of a current frame image and according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, the brightness of described current frame image is larger, the brightness of the described display backlight lamp after adjustment is just less, and described N is positive integer.
7. the mobile device with recording function according to claim 6 reduces the device of power consumption when video recording, it is characterized in that: device A comprises device A1, device A1 is according to the brightness of display backlight lamp described in the brightness adjustment of described current frame image, device A1 particularly, by the brightness adjustment of described display backlight lamp be described display backlight lamp high-high brightness P doubly, described P=(256-Y)/512, described Y is the brightness of described current frame image, the brightness of described current frame image is the brightness in YUV color space, the brightness of described current frame image is the mean flow rate of the whole pixels of current frame image.
8. according to the mobile device with recording function described in claim 6 or 7, when recording a video, reduce the device of power consumption, it is characterized in that, the device of described reduction power consumption also comprises device B, if do not receive user's operation signal in default duration, device B just by the brightness adjustment of described display backlight lamp for default low bright value and maintain and describedly preset low bright value, until receive user's operation signal device A that reruns.
9. the mobile device with recording function according to claim 6 reduces the device of power consumption when video recording, it is characterized in that: described screen also comprises touch-screen, the device of described reduction power consumption also comprises device C, and during video recording, device C is switched to sleep pattern by the mode of operation of described touch-screen.
10. the mobile device with recording function according to claim 6 reduces the device of power consumption when video recording, it is characterized in that: described mobile device is provided with key-press backlight lamp, the device of described reduction power consumption also comprises device D, and during video recording, device D extinguishes described key-press backlight lamp.
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| CN201310466281.5A CN103531155B (en) | 2013-10-09 | 2013-10-09 | Mobile device with recording function reduces method and the device of power consumption when recording a video |
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| CN104267849A (en) * | 2014-09-28 | 2015-01-07 | 联想(北京)有限公司 | Information processing method and equipment |
| CN114495841A (en) * | 2020-11-13 | 2022-05-13 | 京东方科技集团股份有限公司 | Readable storage medium, display device and backlight control device and method thereof |
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| CN103531155B (en) | 2016-01-20 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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