CN103501384A - Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone - Google Patents
Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone Download PDFInfo
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- CN103501384A CN103501384A CN201310426236.7A CN201310426236A CN103501384A CN 103501384 A CN103501384 A CN 103501384A CN 201310426236 A CN201310426236 A CN 201310426236A CN 103501384 A CN103501384 A CN 103501384A
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- mobile phone
- battery temperature
- photoflash lamp
- driving current
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
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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 a method for adjusting an electric current of a flash lamp of a mobile phone for taking a picture. The method comprises the steps of (1) detecting the battery temperature value of a battery of the mobile phone to output a battery temperature signal, and (2) adjusting a driving electric current value of the flash lamp of the mobile phone according to the battery temperature signal so as to output the driving electric current value corresponding to the battery temperature value to the flash lamp when the mobile phone takes a picture and starts the flash lamp. Compared with the prior art, the method has the advantages that when a user uses the flash lamp to take the picture, the battery temperature can be judged, the output electric current of a driving unit of the flash lamp is adjusted, and the problems that due to the facts that the inner resistance of the battery of the mobile phone is increased, the large electric current is output, and the supply voltage of the mobile phone is decreased, the mobile phone shuts down are solved. In addition, the invention further discloses the mobile phone. When the user takes a picture, the electric current of the flash lamp can be adjusted according to the temperature of the battery of the mobile phone.
Description
Technical field
The present invention relates to domain of communication equipment, relate in particular to a kind of method that mobile phone photograph is regulated the photoflash lamp electric current.
Background technology
The LED photoflash lamp has been the standard configuration of smart mobile phone at present, and under dim environment, the LED photoflash lamp can provide secondary light source for mobile phone photograph, makes scene brighter, makes the better effects if of taking pictures.Due to the high light that high brightness will be provided, the LED photoflash lamp is larger at flash of light time institute's power consumption stream, more than photoflash lamp drive IC output current generally is made as 500mA-1A, is a fixed value.And the most lithium battery power supplies that adopt of smart mobile phone, the internal resistance meeting of lithium battery becomes large along with the reduction of ambient temperature, to export large electric current during because of the use photoflash lamp, it is large that pressure drop on the internal resistance of cell becomes, the supply power voltage that exports mobile phone to is dragged down, cause mobile phone shutdown, therefore but be badly in need of solution to the problems described above.
Summary of the invention
The purpose of this invention is to provide a kind of mobile phone photograph and regulate the method for photoflash lamp electric current, control the drive current size of photoflash lamp by battery temperature, prevent because in battery of mobile phone, resistive is exported greatly large electric current, drag down the supply power voltage to mobile phone, and cause the problem of mobile phone shutdown while causing taking pictures.
Another object of the present invention is to provide a kind of mobile phone, this mobile phone is controlled the drive current size of photoflash lamp by battery temperature, prevent from dragging down the supply power voltage to mobile phone because in battery of mobile phone, resistive is large and export large electric current, and cause the problem of mobile phone shutdown while causing taking pictures.
To achieve these goals, the invention provides a kind of method that mobile phone photograph is regulated the photoflash lamp electric current, comprising: the battery temperature value of (1) detection of handset battery is with output battery temperature signal; (2) according to the driving current value of the photoflash lamp of described battery temperature Signal Regulation mobile phone so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.Compared with prior art, can be the user when using photoflash lamp to take pictures, judgement battery temperature height, regulate the output current size of photoflash lamp driver element, can prevent from exporting large electric current because in battery of mobile phone, resistive is large, drag down the problem that causes mobile phone shutdown to the supply power voltage of mobile phone.
Preferably, step (2) is specially: according to the described battery temperature calculated signals driving current signal corresponding with described battery temperature signal; Control the driving current value of the photoflash lamp of described mobile phone according to described driving current signal so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.
Preferably, described step (2) is according to the driving current value of the photoflash lamp of default battery temperature value and driving current value parameter list adjusting cellphone.Certainly, also can calculate the driving current value corresponding with the battery temperature value detected according to default computing formula.
Particularly, the method for described mobile phone photograph adjusting photoflash lamp electric current also comprises the step that battery temperature value and driving current value parameter list are set.In this scheme, the user can arrange according to the needs of oneself battery temperature value and driving current value parameter list.
Preferably, described battery of mobile phone is lithium battery.
The invention also discloses a kind of mobile phone, comprise detecting unit, processing unit and photoflash lamp driver element, the battery temperature value of detecting unit detection of handset battery is with output battery temperature signal; Processing unit is according to the described battery temperature value output described driving current signal corresponding with described battery temperature value; The photoflash lamp driver element is according to the driving current value of the photoflash lamp of described battery temperature Signal Regulation mobile phone.Compared with prior art, can be the user when using photoflash lamp to take pictures, judge the battery temperature height by detecting unit, processing unit is regulated the output current size of photoflash lamp driver element, prevent because in battery of mobile phone, resistive is large, export large electric current, drag down the problem that causes mobile phone shutdown to the supply power voltage of mobile phone.
Preferably, the described processing unit described driving current signal corresponding with described battery temperature value with the output of driving current value parameter list according to default battery temperature value.Particularly, described mobile phone also comprises the parameter regulon, and the numerical value in described battery temperature value and driving current value parameter list is regulated in the User instruction.In this scheme, the user can arrange according to the needs of oneself battery temperature value and driving current value parameter list.
Preferably, described detecting unit comprises thermistor.Particularly, described thermistor comprises semistor (PTC) and negative tempperature coefficient thermistor (NTC).
Preferably, described battery of mobile phone is lithium battery.
The accompanying drawing explanation
Fig. 1 is the method flow diagram that mobile phone photograph of the present invention is regulated the photoflash lamp electric current.
Fig. 2 is the structured flowchart of mobile phone of the present invention.
Embodiment
By describing technology contents of the present invention, structural feature in detail, being realized purpose and effect, below in conjunction with execution mode and coordinate accompanying drawing to be explained in detail.
With reference to figure 1, the invention discloses a kind of method that mobile phone photograph is regulated the photoflash lamp electric current, comprising: the battery temperature value of (11) detection of handset battery is with output battery temperature signal; (12) driving current value with the photoflash lamp of driving current value parameter list adjusting cellphone according to default battery temperature value, so that mobile phone photograph is exported the driving current value corresponding with described battery temperature value to described photoflash lamp while starting photoflash lamp.Compared with prior art, can be the user when using photoflash lamp to take pictures, judgement battery temperature height, regulate the output current size of photoflash lamp driver element, can prevent from exporting large electric current because in battery of mobile phone, resistive is large, drag down the problem that causes mobile phone shutdown to the supply power voltage of mobile phone.Wherein, described battery of mobile phone is lithium battery.
The preferably, the method that described mobile phone photograph is regulated the photoflash lamp electric current also comprises step (10): battery temperature value and driving current value parameter list are set.
Preferably, described step (2) comprising: (121) are according to the described battery temperature calculated signals driving current signal corresponding with described battery temperature signal; (122) control the driving current value of the photoflash lamp of described mobile phone according to described driving current signal so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.
Certainly, can also calculate the driving current value corresponding with described battery temperature value, for example default computing formula according to additive method in described step (12).
With reference to figure 2, the invention also discloses a kind of mobile phone, comprise detecting unit 21, processing unit 22 and photoflash lamp driver element 23, the battery temperature value of detecting unit 21 detection of handset batteries 31 is with output battery temperature signal; The described driving current signal that processing unit 22 is corresponding with described battery temperature value with the output of driving current value parameter list according to default battery temperature value; Photoflash lamp driver element 23 is according to the driving current value of the photoflash lamp 32 of described battery temperature Signal Regulation mobile phone.Wherein, described battery of mobile phone is lithium battery.
The preferably, described mobile phone also comprises parameter regulon 24, the numerical value in described battery temperature value and driving current value parameter list is regulated in the User instruction.
Wherein, described detecting unit 21 comprises thermistor.Particularly, described thermistor comprises semistor (PTC) and negative tempperature coefficient thermistor (NTC).
Continuation is with reference to figure 2, the course of work of the present invention is described, mobile phone is under general state, the temperature of battery of mobile phone 31 remains on 25 degrees centigrade of normal temperature, detecting unit 21 detects the battery temperature signal of 25 degrees centigrade, according to default battery temperature value and driving current value parameter list, the driving current value of the corresponding 500mA of the battery temperature value of 25 degree, therefore the processing unit 22 output driving current signal corresponding with this battery temperature value, photoflash lamp driver element 23 writes corresponding with it value 5h in its flashing current register, like this, while taking pictures, photoflash lamp driver element 23 is to the driving current value of photoflash lamp 32 output 500mA.Same, after mobile phone uses a period of time, battery of mobile phone 31 temperature rise to 40 degrees centigrade, and the register value of writing 2h of 22 pairs of photoflash lamp driver elements 23 of processing unit, so that the drive current of photoflash lamp 32 becomes 0mA.Wherein, described battery temperature value and driving current value can be the linear change of inverse ratio, perhaps other variations, described processing unit 22 can also calculate the driving current value corresponding with described battery temperature value according to default computing formula, but no matter be the parameter in battery temperature value and driving current value parameter list or computing formula, can adopt the parameter values that Default Value is good, also can adjustment be set voluntarily by the user, pattern that can also be different by user by selecting or use scenes are selected different parameter values.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belong to the scope that the present invention is contained.
Claims (10)
1. the method that mobile phone photograph is regulated the photoflash lamp electric current, is characterized in that, comprising:
(1) the battery temperature value of detection of handset battery is with output battery temperature signal;
(2) according to the driving current value of the photoflash lamp of described battery temperature Signal Regulation mobile phone so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.
2. mobile phone photograph as claimed in claim 1 is regulated the method for photoflash lamp electric current, it is characterized in that, step (2) is specially: according to the described battery temperature calculated signals driving current signal corresponding with described battery temperature signal; Control the driving current value of the photoflash lamp of described mobile phone according to described driving current signal so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.
3. mobile phone photograph as claimed in claim 1 is regulated the method for photoflash lamp electric current, it is characterized in that, described step (2) is according to the driving current value of the photoflash lamp of default battery temperature value and driving current value parameter list adjusting cellphone.
4. mobile phone photograph as claimed in claim 3 is regulated the method for photoflash lamp electric current, it is characterized in that, also comprises the step that battery temperature value and driving current value parameter list are set.
5. a mobile phone, is characterized in that, comprising:
Detecting unit, the battery temperature value of detection of handset battery is with output battery temperature signal;
Processing unit, according to the described battery temperature signal output described driving current signal corresponding with described battery temperature value;
The photoflash lamp driver element, according to the driving current value of the photoflash lamp of described battery temperature Signal Regulation mobile phone so that mobile phone photograph while starting photoflash lamp to the described photoflash lamp output driving current value corresponding with described battery temperature value.
6. mobile phone as claimed in claim 5, is characterized in that, the described driving current signal that described processing unit is corresponding with described battery temperature value with the output of driving current value parameter list according to default battery temperature value.
7. mobile phone as claimed in claim 6, is characterized in that, also comprises the parameter regulon, and the numerical value in described battery temperature value and driving current value parameter list is regulated in the User instruction.
8. mobile phone as claimed in claim 1, is characterized in that, described detecting unit comprises thermistor.
9. mobile phone as claimed in claim 8, is characterized in that, described thermistor comprises semistor and negative tempperature coefficient thermistor.
10. mobile phone as claimed in claim 5, is characterized in that, described battery of mobile phone is lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310426236.7A CN103501384A (en) | 2013-09-17 | 2013-09-17 | Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone |
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| CN201310426236.7A CN103501384A (en) | 2013-09-17 | 2013-09-17 | Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone |
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| CN103501384A true CN103501384A (en) | 2014-01-08 |
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| CN201310426236.7A Pending CN103501384A (en) | 2013-09-17 | 2013-09-17 | Method for adjusting electric current of flash lamp of mobile phone for taking picture and mobile phone |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105554412A (en) * | 2016-02-15 | 2016-05-04 | 广东欧珀移动通信有限公司 | Photographing method and device based on screen light compensation and mobile terminal |
| CN105824344A (en) * | 2015-08-31 | 2016-08-03 | 维沃移动通信有限公司 | Current adjusting method and terminal |
| CN105847527A (en) * | 2015-06-25 | 2016-08-10 | 维沃移动通信有限公司 | Method for preventing automatic shutdown of mobile terminal, and mobile terminal |
| CN106961516A (en) * | 2017-02-27 | 2017-07-18 | 维沃移动通信有限公司 | A kind of flash lamp control method and device |
| CN107105562A (en) * | 2017-06-28 | 2017-08-29 | 上海传英信息技术有限公司 | The system and method for flash lamp output current is controlled based on cell voltage |
| CN108449474A (en) * | 2018-02-28 | 2018-08-24 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of mobile terminal flash lamp |
| CN112714212A (en) * | 2019-10-25 | 2021-04-27 | 环鸿电子（昆山）有限公司 | Flashlight mode control method for flashlight of mobile phone |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105847527A (en) * | 2015-06-25 | 2016-08-10 | 维沃移动通信有限公司 | Method for preventing automatic shutdown of mobile terminal, and mobile terminal |
| CN105847527B (en) * | 2015-06-25 | 2019-09-27 | 维沃移动通信有限公司 | A kind of method preventing mobile terminal automatic shutdown and mobile terminal |
| CN105824344A (en) * | 2015-08-31 | 2016-08-03 | 维沃移动通信有限公司 | Current adjusting method and terminal |
| CN105554412A (en) * | 2016-02-15 | 2016-05-04 | 广东欧珀移动通信有限公司 | Photographing method and device based on screen light compensation and mobile terminal |
| CN105554412B (en) * | 2016-02-15 | 2018-03-16 | 广东欧珀移动通信有限公司 | A kind of photographic method based on screen light filling, device and mobile terminal |
| CN106961516A (en) * | 2017-02-27 | 2017-07-18 | 维沃移动通信有限公司 | A kind of flash lamp control method and device |
| CN106961516B (en) * | 2017-02-27 | 2020-07-03 | 维沃移动通信有限公司 | Flash lamp control method and device |
| CN107105562A (en) * | 2017-06-28 | 2017-08-29 | 上海传英信息技术有限公司 | The system and method for flash lamp output current is controlled based on cell voltage |
| CN107105562B (en) * | 2017-06-28 | 2019-11-05 | 上海传英信息技术有限公司 | System and method based on cell voltage control flash lamp output electric current |
| CN108449474A (en) * | 2018-02-28 | 2018-08-24 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of mobile terminal flash lamp |
| CN112714212A (en) * | 2019-10-25 | 2021-04-27 | 环鸿电子（昆山）有限公司 | Flashlight mode control method for flashlight of mobile phone |
| CN112714212B (en) * | 2019-10-25 | 2024-03-15 | 环鸿电子（昆山）有限公司 | Flashlight mode control method for flashlight of mobile phone |
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