CN101697563A - Power saving method for mobile terminal and mobile terminal - Google Patents

Power saving method for mobile terminal and mobile terminal Download PDF

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Publication number
CN101697563A
CN101697563A CN200910193282A CN200910193282A CN101697563A CN 101697563 A CN101697563 A CN 101697563A CN 200910193282 A CN200910193282 A CN 200910193282A CN 200910193282 A CN200910193282 A CN 200910193282A CN 101697563 A CN101697563 A CN 101697563A
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CN
China
Prior art keywords
camera head
image information
portable terminal
people
lamp tube
Prior art date
Application number
CN200910193282A
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Chinese (zh)
Inventor
胡奎然
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宇龙计算机通信科技(深圳)有限公司
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Priority to CN200910193282A priority Critical patent/CN101697563A/en
Publication of CN101697563A publication Critical patent/CN101697563A/en

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    • Y02D70/00

Abstract

The embodiment of the invention provides a power saving method for a mobile terminal, which comprises the following steps: in the application of starting a pick-up device, acquiring image information in front of the pick-up device through the pick-up device of the mobile terminal, detecting and identifying whether the current image information acquired by the pick-up device has face image information or not, and closing a backlight tube in a liquid crystal display module of the mobile terminal when the face image information is not detected in the current image information. Correspondingly, the embodiment of the invention also provides the mobile terminal. Through the embodiment of the invention, the backlight tube in the liquid crystal display module of the mobile terminal is automatically closed when the mobile terminal is not used and does not face to a user so as to save the electric quantity of a battery of the mobile terminal and prolong the service life of the mobile terminal.

Description

A kind of portable terminal power-saving method and portable terminal

Technical field

The present invention relates to the communications field, relate in particular to a kind of portable terminal power-saving method and portable terminal.

Background technology

Development along with 3G (Third Generation) Moblie technology and portable terminal hardware technology, the present portable terminal multimedia function that generally can both video calling is provided and take pictures and make video recording etc. for the user, generally can be when the user uses portable terminal towards portable terminal, the image of communication counterpart or take pictures that camera head captures personage or scenery when making video recording when allowing the user more clearly watch video calling, when the user carries out video calling or take pictures when making video recording, the backlight lamp tube in the LCD MODULE of portable terminal can be in normal bright state.Some the time user use portable terminal to carry out video calling or the process of making video recording of taking pictures in, can in time finish video calling or take pictures and make video recording because of cause specific suspends to use portable terminal and do not have, nobody uses and still is not in normal bright state in the face of under user's the situation backlight lamp tube in the portable terminal LCD Panel at portable terminal at this moment, because generally the power consumption than other electronic components is big for the power consumption when this backlight lamp tube is lighted, the electric weight of battery of mobile terminal will be exhausted fast, cause normal shortening service time of portable terminal in this case, when using portable terminal, make troubles for the user.

Summary of the invention

Problem in view of the prior art existence, the present invention proposes a kind of portable terminal power-saving method and portable terminal, backlight lamp tube in the portable terminal LCD MODULE is not closed in the face of under user's the situation automatically unmanned use of portable terminal, thereby the saving battery capacity of mobile terminal prolongs portable terminal service time.

In order to solve the problems of the technologies described above, the present invention proposes a kind of portable terminal power-saving method, comprising:

In the application of opening camera head, gather the image information in described camera head the place ahead by the camera head of portable terminal;

Detect in the present image information of discerning described camera head collection and whether have people's face image information;

In described present image information, detect when recognizing people's face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal.

Correspondingly, the present invention also proposes a kind of portable terminal, comprises LCD MODULE and camera head, and described LCD MODULE comprises backlight lamp tube, and described portable terminal also comprises:

Photographing module is used for gathering the image information in described camera head the place ahead by the camera head of portable terminal in the application of opening camera head;

Detect identification module, be used for detecting the present image information of discerning described camera head collection and whether have people's face image information;

Turn-off module, be used for described detection identification module and do not detect when recognizing people's face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal in described present image information.

Implement the embodiment of the invention, by in the application of opening camera head, the camera head of portable terminal detects in the present image information of discerning described camera head collection whether have people's face image information, in described present image information, do not detect when recognizing people's face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal, can make at portable terminal and be in unmanned the use and do not face under user's the situation, backlight lamp tube in the automatic turning-off mobile terminal LCD MODULE, thereby the saving battery capacity of mobile terminal prolongs portable terminal service time.

Description of drawings

In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the flow chart of portable terminal power-saving method in the first embodiment of the invention;

Fig. 2 is the flow chart of portable terminal power-saving method in the second embodiment of the invention;

Fig. 3 is the flow chart of portable terminal power-saving method in the third embodiment of the invention;

Fig. 4 is the structural representation of portable terminal in the embodiment of the invention.

Embodiment

The present invention proposes a kind of portable terminal power-saving method and portable terminal, backlight lamp tube in the portable terminal LCD Panel is not closed in the face of under user's the situation automatically unmanned use of portable terminal, thereby the saving battery capacity of mobile terminal prolongs portable terminal service time.

Fig. 1 is the flow chart of portable terminal power-saving method in the first embodiment of the invention, and this portable terminal power-saving method comprises:

Step 101 in the application of opening camera head, is gathered the image information in described camera head the place ahead by the camera head of portable terminal;

Herein, during concrete enforcement, camera head comprises first camera head and second camera head that is provided with on the portable terminal, wherein first camera head is arranged in the side of portable terminal back to the mobile phone LCD MODULE, its resolution is generally more than two mega pixels, be mainly used in and take pictures and make video recording, second camera head is arranged in the side that portable terminal has LCD MODULE and keyboard, its resolution is generally 300,000 pixels, be mainly used in the image of user when gathering video calling, this second camera head also can be used for autodyning and the function of making video recording in addition.The application of opening camera head comprises that using first camera head to take pictures makes video recording, and uses second camera head to carry out video calling or auto heterodyne.

Step 102 detects in the present image information of discerning described camera head collection whether have people's face image information;

When specifically implementing, can periodically detect in the present image information of discerning this camera head collection of a frame whether comprise people's face image information according to the time interval default or that the user is provided with, herein, to guarantee to detect the real-time of recognition result.Detecting identification people face image information step is specially: detect in the described present image information of identification whether have people's face characteristic information and people's face face information according to the wide characteristic information of default people's face colour wheel and people's face face characteristic information, if in described present image information, have people's face characteristic information and people's face face information, judge that then there is people's face image information in described present image, otherwise, judge that there is not people's face image information in described present image.

Step 103 detects when recognizing people's face image information in described present image information, closes the backlight lamp tube in the LCD MODULE of described portable terminal;

Herein, the user is using portable terminal to carry out video calling or is taking pictures when making video recording, generally all can be towards portable terminal, for example the user can be towards second camera head in the portable terminal when carrying out video calling or autodyning, the user is in that take pictures can be towards first camera head or the LCD MODULE in the portable terminal when making video recording, also can be in the face of LCD MODULE the time facing to second camera head, therefore can detect in the present image information that recognizes the camera head collection and contain people's surface information, if in the present image information of camera head collection, do not detect people's face image information, then illustrate the user not use portable terminal to carry out video calling or take pictures make video recording or attentiveness not on portable terminal, can close immediately this moment or the backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time, thereby the saving battery capacity of mobile terminal prolongs portable terminal service time; For this mode of backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time, owing to can periodically detect in the present image information of discerning this camera head collection of a frame whether comprise people's face image information according to the time interval default or that the user is provided with in the step 102, so when detection recognizes people's face image again in this default a period of time, need not close backlight lamp tube, and recover normal condition.

Step 104 after described backlight lamp tube is closed, recognizes people's face image information if detect in described present image information, then open described backlight lamp tube.

Herein, because can be in step 102 according to time interval periodicity default or that the user is provided with

Ground detects the people's face image information in the identification present image information, to guarantee to detect the real-time of recognition result, so after in step 103, having closed the backlight lamp tube in the portable terminal LCD MODULE, if detect in the present image information that recognizes the camera head collection and contain people's surface information, illustrate that then the user reuses portable terminal and carries out video calling or take pictures and make video recording, can open the backlight lamp tube in the portable terminal LCD MODULE this moment, recovers the normal use of user to portable terminal.

Fig. 2 is the flow chart of portable terminal power-saving method in the second embodiment of the invention, and this flow chart is used to illustrate the process that adopts second camera head to realize the portable terminal power-saving method, comprising:

Step 201 in video calling, the process of making video recording of autodyning or take pictures, is gathered the image information in this second camera head the place ahead by second camera head of portable terminal;

Herein, when the user uses second camera head of portable terminal to carry out video calling or autodynes, because this second camera head has been used for gathering the image of video calling both call sides or the user image when autodyning, the operation that this moment need not be extra; When the user uses first camera head of portable terminal to take pictures to make video recording, can periodically start second camera head to gather the image information in this second camera head the place ahead according to the time interval default or that the user is provided with.

Step 202 detects in the present image information of discerning this second camera head collection whether have people's face image information;

Herein, during concrete enforcement, if the user uses second camera head of portable terminal to carry out video calling or when autodyning in step 201, can periodically detect in the present image information of this second camera head collection of identification one frame whether comprise people's face image information according to the time interval default or that the user is provided with; If the user uses first camera head of portable terminal to take pictures when making video recording in step 201, can periodically detect in the present image information of discerning this second camera head collection of a frame whether comprise people's face image information according to the time interval of presetting or the user is provided with, this moment in the above-mentioned time interval default or that the user is provided with is identical with the time interval of startup second camera head in the step 201.

Step 203 does not detect when recognizing people's face image information the backlight lamp tube in the LCD MODULE of turning-off mobile terminal in this current image information;

Herein, when in the present image information that this second camera head collects, not detecting people's face image information, can close immediately or the backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time.For this mode of backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time, owing to can periodically detect in the present image information of discerning this second camera head collection of a frame whether comprise people's face image information according to the time interval default or that the user is provided with in the step 202, so when detection recognizes people's face image again in default a period of time, need not close backlight lamp tube, and recover normal condition.Alternatively, when the user uses first camera head of portable terminal to take pictures to make video recording, also can close this first camera head simultaneously, further save electric energy.

Step 204 after this backlight lamp tube is closed, recognizes people's face image information if detect in this current image information, then open this backlight lamp tube.

If first camera head of portable terminal is closed, should open this first camera head simultaneously herein, in step 203.

Fig. 3 is the flow chart of portable terminal power-saving method in the third embodiment of the invention, and this flow chart is used to illustrate the process that adopts first camera head to realize the portable terminal power-saving method, comprising:

Step 301 in the process of making video recording of taking pictures, is gathered the image information in this first camera head the place ahead by first camera head of portable terminal;

When the user uses first camera head of portable terminal to take pictures to make video recording, gather the image information in this first camera head the place ahead by this first camera head herein.

Step 302 detects in the present image information of discerning the first camera head collection whether have people's face image information;

When specifically implementing, can periodically detect in the present image information of discerning this first camera head collection of a frame whether comprise people's face image information herein, according to the time interval default or that the user is provided with.

Step 303 does not detect when recognizing people's face image information the backlight lamp tube in the LCD MODULE of turning-off mobile terminal in this current image information;

, in this current image information, do not detect when recognizing people's face image information herein, can close immediately or the backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time.For this mode of backlight lamp tube in (for example 10 seconds) turning-off mobile terminal LCD MODULE after default a period of time, owing to can periodically detect in the present image information of discerning this first camera head collection of a frame whether comprise people's face image information according to the time interval default or that the user is provided with in the step 302, so when detection recognizes people's face image again in default a period of time, need not close backlight lamp tube, and recover normal condition.

Step 304 after this backlight lamp tube is closed, recognizes people's face image information if detect in this current image information, then open this backlight lamp tube.

When having people's face image information in the present image information of first camera head detection Recognition and Acquisition, open this backlight lamp tube herein.

Need to prove herein, for the user who likes taking the personage, adopt the method described in the present embodiment, when using first camera head to take, if nobody's face image in the image that first camera head is gathered, judge that then the user is not using portable terminal, close backlight lamp tube this moment automatically, reaches the effect of economize on electricity.

Fig. 4 is the structural representation of portable terminal in the embodiment of the invention, comprises LCD MODULE 41 and camera head 42, and LCD MODULE 41 comprises backlight lamp tube 411, and this portable terminal also comprises:

Photographing module 43 is used in the application of opening camera head 42, gathers the image information in these camera head 42 the place aheads by the camera head 42 of this portable terminal;

Herein, during concrete enforcement, camera head 42 comprises first camera head 421 and second camera head 422 that is provided with on the portable terminal, wherein first camera head 421 is arranged in the side of portable terminal back to mobile phone LCD MODULE 41, its resolution is generally more than two mega pixels, be mainly used in and take pictures and make video recording, second camera head 422 is arranged in the side that portable terminal has LCD MODULE 41 and keyboard, its resolution is generally 300,000 pixels, be mainly used in the image of gathering user in the video calling, this second camera head 422 also can be used for autodyning and the function of making video recording in addition.The application of opening camera head 42 comprises that using first camera head 421 to take pictures makes video recording, and uses second camera head 422 to carry out video calling or auto heterodyne.

Detect identification module 44, be used for detecting the present image information that this photographing module 43 of identification collects and whether have people's face image information;

Herein, during concrete enforcement, detect identification module 44 and also comprise timing unit 441 people's face characteristic storage unit 442, wherein timing unit 441 is used to store the time interval default or that the user is provided with, and people's face characteristic storage unit 442 is used to store the wide characteristic information of default people's face colour wheel and people's face face characteristic information; Detect identification module 44 and periodically detect in the identification present image information whether have people's face characteristic information and people's face face information according to the time interval of timing unit 441 storages and the wide characteristic information of people's face colour wheel and people's face face characteristic information of people's face characteristic storage unit 442 storages, if in described present image information, have people's face characteristic information and people's face face information, judge that then there is people's face image information in described present image.

Turn-off module 45, be used for detecting identification module 43 when this current image information does not detect people's face image information, the backlight lamp tube 411 in the LCD MODULE 41 of turning-off mobile terminal;

Herein, detect identification module 44 and in the present image information that this camera head 43 collects, do not detect when recognizing people's face image information, can close immediately or the backlight lamp tube 411 in (for example 10 seconds) turning-off mobile terminal LCD MODULE 41 after default a period of time.For the backlight lamp tube 411 this modes in the LCD MODULE 41 of (for example 10 seconds) turning-off mobile terminal after default a period of time, can periodically detect in the present image information of discerning these camera head 43 collections of a frame whether comprise people's face image information according to the time interval default or that the user is provided with owing to detecting identification module 44, so in this default a period of time, detect again when recognizing people's face image when detecting identification module 44, need not close backlight lamp tube 411, and recover normal condition.

Opening module 46 after being used for backlight lamp tube 411 and closing, detects people's face image information if detect identification module 43 in this current image information, open the backlight lamp tube 411 in the portable terminal LCD MODULE 41.

Need to prove, photographing module 43 can pass through first camera head 421 or second camera head, 422 images acquired information, when the user uses second camera head 422 of portable terminal to carry out video calling or autodynes, photographing module 43 is gathered the present image information in these second camera head, 422 the place aheads by second camera head 422, detect the present image information of 44 pairs second camera heads of identification module, 422 collections and carry out people's face image detection, in this current image information, detect when recognizing people's face image information the backlight lamp tube 411 in the LCD MODULE 41 of indication shutoff module 45 turning-off mobile terminals; When the user uses first camera head 421 of portable terminal to take pictures to make video recording, photographing module 43 can periodically start second camera head 422 to gather the present image information in these second camera head, 422 the place aheads according to the time interval default or that the user is provided with, detect the present image information of 44 pairs second camera heads of identification module, 422 collections and carry out people's face image detection, in this current image information, do not detect when recognizing people's face image information, backlight lamp tube 411 in the LCD MODULE 41 of indication shutoff module 45 turning-off mobile terminals, also can close this first camera head 421 simultaneously in addition, further save electric energy; Photographing module 43 also can only be gathered the present image information in these first camera head, 421 the place aheads by this first camera head 421, detect the present image information of 44 pairs first camera heads of identification module, 421 collections and carry out people's face image detection, in this current image information, detect when recognizing people's face image information the backlight lamp tube in the LCD MODULE of indication shutoff module 45 turning-off mobile terminals.In addition, after backlight lamp tube 411 is closed, in this current image information, detect people's face image information, open backlight lamp tube 411 and pent first camera head 421 in the portable terminal LCD MODULE 41 if detect identification module 43.

In sum, implement the embodiment of the invention, by in the application of opening camera head, the camera head of portable terminal detects in the present image information of discerning described camera head collection whether have people's face image information, in described present image information, do not detect when recognizing people's face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal, can make at portable terminal and be in unmanned the use and do not face under user's the situation, backlight lamp tube in the automatic turning-off mobile terminal LCD MODULE, thereby the saving battery capacity of mobile terminal prolongs portable terminal service time.

Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.

Claims (10)

1. a portable terminal power-saving method is characterized in that, may further comprise the steps:
In the application of opening camera head, gather the image information in described camera head the place ahead by the camera head of portable terminal;
Detect in the present image information of discerning described camera head collection and whether have people's face image information;
In described present image information, detect when recognizing people's face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal.
2. portable terminal power-saving method as claimed in claim 1 is characterized in that,
Described camera head comprises first camera head and second camera head, and described first camera head is used to take pictures and makes video recording, and described second camera head is used for autodyning or gathering user image information at video calling.
3. portable terminal power-saving method as claimed in claim 2 is characterized in that,
Being applied as described video calling, autodyning or take pictures and make video recording of described unlatching camera head;
Described camera head is described second camera head.
4. portable terminal power-saving method as claimed in claim 2 is characterized in that,
Described the taking pictures that be applied as of described unlatching camera head made video recording;
Described camera head is described first camera head.
5. portable terminal power-saving method as claimed in claim 1 is characterized in that, also comprises:
After described backlight lamp tube is closed, recognize people's face image information, then open described backlight lamp tube if in described present image information, detect.
6. a portable terminal comprises LCD MODULE and camera head, and described LCD MODULE comprises backlight lamp tube, it is characterized in that, described portable terminal also comprises:
Photographing module is used for gathering the image information in described camera head the place ahead by the camera head of portable terminal in the application of opening camera head;
Detect identification module, be used for detecting the present image information of discerning described camera head collection and whether have people's face image information;
Turn-off module, be used for described detection identification module and do not detect when recognizing the face image information, close the backlight lamp tube in the LCD MODULE of described portable terminal in described present image information.
7. portable terminal as claimed in claim 6 is characterized in that, also comprises:
Opening module after being used for described backlight lamp tube and closing, if described detection identification module recognizes people's face image information described the detection in image information, is opened described backlight lamp tube.
8. portable terminal as claimed in claim 7 is characterized in that,
Described camera head comprises first camera head and second camera head, and described first camera head is made video recording with taking pictures, and described second camera head is used for autodyning or gathering user image information at video calling.
9. portable terminal as claimed in claim 8 is characterized in that,
Being applied as described video calling, autodyning or take pictures and make video recording of described unlatching camera head;
Described camera head is described second camera head.
10. portable terminal as claimed in claim 8 is characterized in that,
Described the taking pictures that be applied as of described unlatching camera head made video recording;
Described camera head is described first camera head.
CN200910193282A 2009-10-26 2009-10-26 Power saving method for mobile terminal and mobile terminal CN101697563A (en)

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US9099021B2 (en) 2010-07-30 2015-08-04 Beijing Lenovo Software Ltd. Display screen and terminal device using same
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