CN101640726A - Mobile phone with induction light function and realizing method thereof - Google Patents
Mobile phone with induction light function and realizing method thereof Download PDFInfo
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- CN101640726A CN101640726A CN200910160651A CN200910160651A CN101640726A CN 101640726 A CN101640726 A CN 101640726A CN 200910160651 A CN200910160651 A CN 200910160651A CN 200910160651 A CN200910160651 A CN 200910160651A CN 101640726 A CN101640726 A CN 101640726A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000006698 induction Effects 0.000 title claims abstract description 10
- 238000001914 filtration Methods 0.000 claims description 8
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000004438 eyesight Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 2
- 201000009487 Amblyopia Diseases 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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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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Abstract
The invention relates to a mobile phone with induction light function, comprising a photoelectric transistor, a current processing chip and a microprocessor. The photoelectric transistor is used for inducing light rays in the external environment and generating current varying in size according to the strength of light rays of the induction light; the current processing chip converts current generated by the photoelectric transistor into a voltage value; and the microprocessor is used for comparing the voltage value transmitted from the current processing chip with the configured voltage range, finding the voltage range of the voltage value, generating luminance control signals corresponding to the voltage range and controlling the luminance of backlight. Correspondingly, the invention also provides a method for realizing the induction light function of the mobile phone. In the invention, the brightness of the screen of the mobile phone and the backlight of a keyboard can be automatically regulated according to the brightness level of light rays in the external environment when the brightness of light rays in the external environment is in different states.
Description
Technical Field
The present invention relates to a mobile phone, and more particularly, to a mobile phone with light sensing function and a method for implementing the same.
Background
Along with the popularization of mobile phone application, people using mobile phones in China are more and more, and more old people, primary and secondary school students and some people with weak sight also need to use the mobile phones. And the light requirements of the group are much higher than those of the young and middle-aged people. The old people with poor eyesight need to adjust the light of the mobile phone screen and the keyboard, students in middle and primary schools need to adjust the light of the mobile phone screen and the keyboard to protect eyesight all day long, and the amblyopia group needs to adjust the light of the mobile phone screen and the keyboard more to achieve the basic purpose of checking and reading.
However, at present, there is no mobile phone that can automatically adjust the backlight according to the external environment, and there is no mobile phone that can alarm when the external environment light is too bright or too dark.
Disclosure of Invention
The invention aims to provide a mobile phone with a light sensing function and an implementation method thereof, which can automatically adjust the brightness of a mobile phone screen and a keyboard backlight according to the brightness of external environment light.
In order to solve the above problems, the present invention provides a mobile phone with light sensing function, which comprises a phototransistor, a current processing chip and a microprocessor;
the photoelectric transistor is used for sensing light rays of an external environment and generating currents with different sizes according to the light ray intensity of the sensed light rays;
the current processing chip is used for converting the current generated by the phototransistor into a voltage value;
and the microprocessor is used for receiving the voltage value sent by the current processing chip, comparing the voltage value with a configured voltage range, finding the voltage range where the voltage value is located, generating a brightness control signal corresponding to the voltage range and controlling the brightness of the backlight.
Further, the mobile phone also has the following characteristics:
the phototransistor is a photoresistor, a photodiode and an IC based monolithic photodiode.
Further, the mobile phone also has the following characteristics:
the mobile phone also comprises a current filtering chip and an audible and visual alarm device,
the current filtering chip is positioned between the phototransistor and the current processing chip and is used for shaping the current generated by the phototransistor into a current with a regular waveform;
and the sound-light alarm device is used for starting when the microprocessor detects that the voltage value is not in the configured voltage range, and prompting a user that the light is too strong or too weak.
Further, the mobile phone also has the following characteristics:
the microprocessor is configured with one or more voltage ranges, each voltage range corresponding to a brightness control signal.
Further, the mobile phone also has the following characteristics:
the backlight lamp is a backlight lamp of a mobile phone screen and/or a mobile phone keyboard.
In order to solve the above problem, the present invention further provides a method for implementing a light sensing function of a mobile phone, including:
the mobile phone senses light rays of an external environment and generates currents with different sizes according to the light ray intensity of the sensed light rays;
converting the generated current into a voltage value;
and comparing the voltage value with a configured voltage range, finding the voltage range in which the voltage value is positioned, generating a brightness control signal corresponding to the voltage range, and controlling the brightness of the backlight.
Further, the implementation method also has the following characteristics:
the device for sensing light of external environment is a photoresistor, a photodiode and an IC-based monolithic photodiode.
Further, the implementation method also has the following characteristics:
current filtering is carried out after currents with different sizes are generated according to the light intensity of the induction light, and the currents are shaped into currents with regular waveforms and then converted into voltage values;
and when the mobile phone detects that the voltage value is not in the configured voltage range, the mobile phone starts a sound and light alarm device to prompt a user that the light is too strong or too weak.
Further, the implementation method also has the following characteristics:
the mobile phone is provided with one or more configured voltage ranges, and each voltage range corresponds to one brightness control signal.
Further, the implementation method also has the following characteristics:
the backlight lamp is a backlight lamp of a mobile phone screen and/or a mobile phone keyboard.
According to the mobile phone with the light sensing function and the implementation method thereof, when the brightness of the external environment light is in different states, the brightness of the screen of the mobile phone and the brightness of the backlight lamp of the keyboard can be automatically adjusted by the mobile phone according to the brightness of the external environment light. In one embodiment, a sound and light alarm mode can be used to remind the user that the light is too strong or too weak, and the user can adjust the light by means of an external light source according to the prompt.
The mobile phone has the characteristics of high measurement accuracy due to the adoption of the monolithic photodiode based on the IC, and has the characteristics of low power consumption and the like due to the adoption of the monolithic photodiode based on the IC, and has the functions of automatically adjusting the backlight of a screen and a keyboard of the mobile phone and automatically alarming, so that the novel mobile phone can give friendly prompt information due to the automatic alarming function, and the usability of the mobile phone is enhanced.
Drawings
FIG. 1(a) is a waveform diagram of a current signal converted by a light source according to an embodiment of the present invention;
FIG. 1(b) is a waveform diagram of a filtered current signal according to an embodiment of the present invention;
FIG. 1(c) is a waveform diagram of the voltage calculated by the current processing chip according to the embodiment of the present invention;
FIG. 2 is a functional block diagram of a mobile phone according to an embodiment of the present invention;
FIG. 3 is a flow chart of generating an alarm in an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
In the embodiment, a current processing chip, a filter chip and a phototransistor are embedded in the mobile phone, so that the mobile phone has a function of sensing light, and the brightness of a backlight lamp is automatically adjusted according to the magnitude of the sensing light. Wherein,
the phototransistor is used for sensing light rays of the external environment, generates currents with different magnitudes according to the sensing light, and can adopt a crystalline silicon wafer used for producing an integrated circuit, such as a photoresistor and the like; also, a single crystal silicon wafer, such as a photodiode, etc., preferably an IC-based monolithic photodiode, based on a single crystal silicon wafer, may be used, which has the characteristics of high accuracy, small size, low price, etc.
Fig. 2 is a functional block diagram related to the light sensing function in the present embodiment, in which the present embodiment takes an IC-based monolithic photodiode as an example, and the functional blocks related to the light sensing function include an IC-based monolithic photodiode, a filter chip, a current processing chip and a microprocessor; wherein,
the IC-based monolithic photodiode is used for generating currents with different sizes according to different levels of the induction light intensity; the method specifically comprises the following steps:
when the monolithic photodiode based on the IC senses light, the sensed light is converted into light with different polarization degrees according to the strength of the sensed light; the sensing light can be divided into 8 levels from weak to strong as the embodiment; other numbers of stages are also possible, such as 2, 3, 4, 5, 6, 7, 9, 10 or more; generating corresponding currents according to different levels of intensity, wherein the current is a current with an irregular waveform, as shown in fig. 1 (a);
the current filtering chip is used for shaping the current generated by the monolithic photodiode based on the IC into the current with a regular waveform; a passive low pass filter implementation may be employed.
And the current processing chip is used for amplifying the filtered current, converting the current value into a voltage value and inputting the voltage value into a microprocessor of the mobile phone.
And the microprocessor is used for receiving the voltage value sent by the current processing chip, comparing the voltage value with a configured voltage range, finding out the voltage range where the voltage value is located, generating a brightness control signal corresponding to the voltage range and controlling the brightness of the backlight lamp, and when the actually generated voltage is not consistent with a set value, adjusting the brightness of the screen by adjusting the current of the control signal, wherein the backlight lamp is brighter when the current is larger. Therefore, the self-adaptive control of the brightness of the mobile phone screen is finally realized, and the brightness of the backlight lamp is automatically adjusted.
The microprocessor is configured with a plurality of voltage ranges, and each voltage range corresponds to one brightness control signal.
Such as: the brightness self-adaptive control method is characterized in that 8 set brightness levels are compared in the mobile phone, each brightness level corresponds to one voltage range, each voltage range corresponds to one brightness control signal, and the brightness control signals are generated after the brightness levels are judged by 'entering the mobile phone according to the number', so that the function of self-adaptive control of the brightness according to ambient light is realized.
In another embodiment, the mobile phone may further include an audible and visual alarm device, when the voltage converted from the light sensed by the monolithic photodiode based on the IC is not within the voltage range set by the system, indicating that the brightness of the external ambient light exceeds the level set by the user, the audible and visual alarm device of the mobile phone is activated to prompt the user that the light is too strong or too weak, and the prompt is set previously and stored in the mobile phone.
The mobile phone with the light sensing function can automatically adjust the brightness of a mobile phone screen when the ambient light is lower than a set standard, and send out an acousto-optic signal to prompt a user to pay attention, and the user can adjust the light by an external light source according to the prompt. Of course, besides the sound and light alarm device, other alarm modes can be adopted, such as vibration, buzzer and the like.
In addition, the invention does not pay attention to the specific implementation details of the function of embedding the induction light in the mobile phone. Various specific implementations of this technique are possible.
The embodiment is an implementation method based on the mobile phone with the light sensing function, and the implementation method comprises the following steps:
step 110: the mobile phone senses light of an external environment according to a set time interval;
step 120: the mobile phone generates currents with different sizes according to the sensed light and the different brightness levels;
step 130: filtering the generated current and converting the current into a voltage value;
step 140: and comparing the generated voltage value with a plurality of voltage ranges configured in the mobile phone, and generating a brightness control signal corresponding to the voltage range in which the voltage value is positioned, wherein the brightness control signal is used for controlling a backlight lamp to regulate the brightness.
In addition, if the converted voltage is not in the preset alarm range, the user can be prompted that the light is too bright or too dark, for example, an audible and visual alarm device can be started to prompt the user.
Different from the traditional light sensing equipment, the invention realizes the automatic control of the chip, is innovative in the technical aspect, saves a lot of cost, and has the characteristics of small volume, good stability, high sensitivity and the like.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A mobile phone with light induction function is characterized in that the mobile phone comprises a phototransistor, a current processing chip and a microprocessor;
the photoelectric transistor is used for sensing light rays of an external environment and generating currents with different sizes according to the light ray intensity of the sensed light rays;
the current processing chip is used for converting the current generated by the phototransistor into a voltage value;
and the microprocessor is used for receiving the voltage value sent by the current processing chip, comparing the voltage value with a configured voltage range, finding the voltage range where the voltage value is located, generating a brightness control signal corresponding to the voltage range and controlling the brightness of the backlight.
2. The handset of claim 1 wherein the phototransistor is a photoresistor, a photodiode, and an IC-based monolithic photodiode.
3. The handset according to claim 1 or 2, further comprising a current filtering chip and an audible and visual alarm device,
the current filtering chip is positioned between the phototransistor and the current processing chip and is used for shaping the current generated by the phototransistor into a current with a regular waveform;
and the sound-light alarm device is used for starting when the microprocessor detects that the voltage value is not in the configured voltage range, and prompting a user that the light is too strong or too weak.
4. The handset according to claim 1 or 2,
the microprocessor is configured with one or more voltage ranges, each voltage range corresponding to a brightness control signal.
5. The handset according to claim 1 or 2,
the backlight lamp is a backlight lamp of a mobile phone screen and/or a mobile phone keyboard.
6. A method for realizing the light sensing function of a mobile phone is characterized by comprising the following steps:
the mobile phone senses light rays of an external environment and generates currents with different sizes according to the light ray intensity of the sensed light rays;
converting the generated current into a voltage value;
and comparing the voltage value with a configured voltage range, finding the voltage range in which the voltage value is positioned, generating a brightness control signal corresponding to the voltage range, and controlling the brightness of the backlight.
7. The method of claim 6, wherein the means for sensing light from the external environment is a photo resistor, a photodiode, or an IC-based monolithic photodiode.
8. The implementation method of claim 6 or 7,
current filtering is carried out after currents with different sizes are generated according to the light intensity of the induction light, and the currents are shaped into currents with regular waveforms and then converted into voltage values;
and when the mobile phone detects that the voltage value is not in the configured voltage range, the mobile phone starts a sound and light alarm device to prompt a user that the light is too strong or too weak.
9. The implementation method of claim 6 or 7,
the mobile phone is provided with one or more configured voltage ranges, and each voltage range corresponds to one brightness control signal.
10. The implementation method of claim 6 or 7,
the backlight lamp is a backlight lamp of a mobile phone screen and/or a mobile phone keyboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910160651A CN101640726A (en) | 2009-07-22 | 2009-07-22 | Mobile phone with induction light function and realizing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910160651A CN101640726A (en) | 2009-07-22 | 2009-07-22 | Mobile phone with induction light function and realizing method thereof |
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| CN101640726A true CN101640726A (en) | 2010-02-03 |
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| CN200910160651A Pending CN101640726A (en) | 2009-07-22 | 2009-07-22 | Mobile phone with induction light function and realizing method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101951445A (en) * | 2010-10-09 | 2011-01-19 | 华为终端有限公司 | Adaptive adjusting terminal equipment and method |
| CN102137178A (en) * | 2011-04-07 | 2011-07-27 | 广东欧珀移动通信有限公司 | Mobile phone backlight control method |
| CN102208155A (en) * | 2010-03-30 | 2011-10-05 | 康准电子科技（昆山）有限公司 | Electronic book |
| CN102413241A (en) * | 2011-11-18 | 2012-04-11 | 上海华勤通讯技术有限公司 | Mobile terminal and environmental brightness reminding method |
| CN103139383A (en) * | 2013-01-30 | 2013-06-05 | 深圳市元征软件开发有限公司 | System and method for intelligent sound and screen adjustment of cell phone |
| WO2014127631A1 (en) * | 2013-02-19 | 2014-08-28 | 中兴通讯股份有限公司 | Method and apparatus for automatically controlling state indicator of terminal device |
| CN104052878A (en) * | 2014-06-19 | 2014-09-17 | 广东欧珀移动通信有限公司 | Method and device for intelligently protecting eyes through controlling brightness of screen of mobile terminal |
| CN108597455A (en) * | 2018-03-28 | 2018-09-28 | 昆山龙腾光电有限公司 | Threshold value recording device, method and threshold value programming system and method |
| CN114512104A (en) * | 2022-04-20 | 2022-05-17 | 宏齐光电子(深圳)有限公司 | Control method and device for energy-saving LED mobile phone backlight source |
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2009
- 2009-07-22 CN CN200910160651A patent/CN101640726A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208155A (en) * | 2010-03-30 | 2011-10-05 | 康准电子科技（昆山）有限公司 | Electronic book |
| CN101951445A (en) * | 2010-10-09 | 2011-01-19 | 华为终端有限公司 | Adaptive adjusting terminal equipment and method |
| CN101951445B (en) * | 2010-10-09 | 2013-01-23 | 华为终端有限公司 | Adaptive adjusting terminal equipment and method |
| CN102137178A (en) * | 2011-04-07 | 2011-07-27 | 广东欧珀移动通信有限公司 | Mobile phone backlight control method |
| CN102137178B (en) * | 2011-04-07 | 2013-07-31 | 广东欧珀移动通信有限公司 | Mobile phone backlight control method |
| CN102413241A (en) * | 2011-11-18 | 2012-04-11 | 上海华勤通讯技术有限公司 | Mobile terminal and environmental brightness reminding method |
| CN103139383A (en) * | 2013-01-30 | 2013-06-05 | 深圳市元征软件开发有限公司 | System and method for intelligent sound and screen adjustment of cell phone |
| WO2014127631A1 (en) * | 2013-02-19 | 2014-08-28 | 中兴通讯股份有限公司 | Method and apparatus for automatically controlling state indicator of terminal device |
| US9288876B2 (en) | 2013-02-19 | 2016-03-15 | Zte Corporation | Method and device for automatically controlling state indicator of terminal device |
| CN104052878A (en) * | 2014-06-19 | 2014-09-17 | 广东欧珀移动通信有限公司 | Method and device for intelligently protecting eyes through controlling brightness of screen of mobile terminal |
| CN108597455A (en) * | 2018-03-28 | 2018-09-28 | 昆山龙腾光电有限公司 | Threshold value recording device, method and threshold value programming system and method |
| CN114512104A (en) * | 2022-04-20 | 2022-05-17 | 宏齐光电子(深圳)有限公司 | Control method and device for energy-saving LED mobile phone backlight source |
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Application publication date: 20100203 |