CN111131596B - Screen brightness adjusting method and device - Google Patents
Screen brightness adjusting method and device Download PDFInfo
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- CN111131596B CN111131596B CN201811289736.XA CN201811289736A CN111131596B CN 111131596 B CN111131596 B CN 111131596B CN 201811289736 A CN201811289736 A CN 201811289736A CN 111131596 B CN111131596 B CN 111131596B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
- H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The disclosure relates to a screen brightness adjusting method and device. The method comprises the following steps: acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light; acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light; and adjusting the brightness of the screen according to the reference illumination intensity fitting formula. According to the technical scheme, the terminal can fit the illumination intensity of the environment light according to the visible light and the infrared light which are included by the environment light, and then adjust the screen brightness according to the illumination intensity of the environment light, so that the condition that the screen brightness adjustment error is large when the visible light illumination intensity included by the environment light is small and the infrared light illumination intensity is large is avoided.
Description
Technical Field
The disclosure relates to the technical field of terminal control, and in particular relates to a screen brightness adjusting method and device.
Background
With the continuous development of the wireless communication and electronic technology fields, the smart phone is more and more popular when the mobile terminal is used. In order to improve the user experience, many mobile terminals have a function of automatically adjusting the screen brightness according to the ambient light brightness.
In the related art, a light sensor capable of detecting the illumination intensity of ambient light is generally disposed around a screen. If the light intensity detected by the light sensor is higher, the ambient light is brighter, and the brightness of the screen can be improved in order to ensure that a user can clearly look up the content displayed on the screen; if the light intensity detected by the light sensor is small, the ambient light is dark, and the brightness of the screen can be reduced to avoid dazzling the user.
Disclosure of Invention
In order to overcome the problems in the related art, embodiments of the present disclosure provide a method and an apparatus for adjusting screen brightness. The technical scheme is as follows:
according to a first aspect of the embodiments of the present disclosure, there is provided a screen brightness adjustment method, including:
acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light;
acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
and adjusting the brightness of the screen according to the reference illumination intensity fitting formula.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: the terminal can fit the illumination intensity of the ambient light according to the visible light and the infrared light included by the ambient light, and then adjust the screen brightness according to the illumination intensity of the ambient light, so that the condition that the screen brightness adjustment error is large when the visible light illumination intensity and the infrared light illumination intensity included by the ambient light are small is avoided.
In one embodiment, the obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes:
acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light;
and acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
In one embodiment, the obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes:
respectively bringing the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas;
and acquiring the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas.
In one embodiment, the method further comprises:
setting a plurality of formulas to be fitted, wherein independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown;
determining a plurality of test light sources, wherein the types of the plurality of test light sources are not completely the same, and the illumination intensities of the plurality of test light sources are known;
respectively substituting the illumination intensity of visible light, the illumination intensity of infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted, and determining coefficients of the plurality of formulas to be fitted;
and substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
In one embodiment, said adjusting the brightness of said screen according to said reference illumination intensity fitting formula comprises:
bringing the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light into the reference illumination intensity fitting formula, and obtaining the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula;
and adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
According to a second aspect of the embodiments of the present disclosure, there is provided a screen brightness adjusting apparatus including:
the first acquisition module is used for acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light;
the second acquisition module is used for acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
and the adjusting module is used for adjusting the brightness of the screen according to the reference illumination intensity fitting formula.
In one embodiment, the second obtaining module comprises:
the first acquisition submodule is used for acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light;
and the second obtaining submodule is used for obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
In one embodiment, the second obtaining module comprises:
the third obtaining sub-module is used for respectively substituting the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas;
and the fourth obtaining submodule is used for obtaining the reference illumination intensity fitting formula according to the illumination intensities of the plurality of environment lights which are respectively obtained by calculating the plurality of illumination intensity fitting formulas.
In one embodiment, the apparatus further comprises:
the device comprises a setting module, a fitting module and a fitting module, wherein the setting module is used for setting a plurality of formulas to be fitted, independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown;
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining a plurality of test light sources, the types of the test light sources are not completely the same, and the illumination intensities of the test light sources are known;
the second determining module is used for respectively substituting the illumination intensity of the visible light, the illumination intensity of the infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted and determining coefficients of the plurality of formulas to be fitted;
and the third obtaining module is used for substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
In one embodiment, the adjustment module comprises:
the fifth obtaining sub-module is used for substituting the illumination intensity of the visible light and the illumination intensity of the infrared light included in the environment light into the reference illumination intensity fitting formula to obtain the illumination intensity of the environment light calculated by the reference illumination intensity fitting formula;
and the adjusting submodule is used for adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
According to a third aspect of the embodiments of the present disclosure, there is provided a screen brightness adjusting apparatus including:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light;
acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
and adjusting the brightness of the screen according to the reference illumination intensity fitting formula.
According to a fourth aspect of embodiments of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer instructions which, when executed by a processor, implement the steps of the method according to any one of the embodiments of the first aspect.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
Fig. 1 is a flowchart illustrating a screen brightness adjustment method according to an exemplary embodiment.
Fig. 2a is a schematic structural diagram of a screen brightness adjusting apparatus according to an exemplary embodiment.
Fig. 2b is a schematic structural diagram of a screen brightness adjusting apparatus according to an exemplary embodiment.
Fig. 2c is a schematic structural diagram of a screen brightness adjusting apparatus according to an exemplary embodiment.
Fig. 2d is a schematic structural diagram of a screen brightness adjusting apparatus according to an exemplary embodiment.
Fig. 2e is a schematic structural diagram of a screen brightness adjusting apparatus according to an exemplary embodiment.
Fig. 3 is a schematic structural diagram illustrating a screen brightness adjustment apparatus according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
The technical scheme provided by the embodiment of the disclosure relates to a terminal, which can be a mobile phone, a tablet computer, an electronic reader and other devices provided with screens. In the related art, the terminal may adjust the brightness of the screen according to the illumination intensity of the ambient light, but the user may use the terminal with various types of ambient light around the user, and the ambient light may include light including a large number of infrared light bands. If the terminal only adjusts the screen brightness according to the illumination intensity of the visible light, the screen brightness may be adjusted unreasonably, and the user experience is not good. According to the technical scheme, the terminal can fit the illumination intensity of the environment light according to the visible light and the infrared light which are included by the environment light, and then the screen brightness is adjusted according to the illumination intensity of the environment light, so that the condition that the screen brightness adjustment error is large when the visible light illumination intensity included by the environment light is small and the infrared light illumination intensity is large is avoided.
Fig. 1 is a flowchart illustrating a screen brightness adjustment method for a terminal according to an exemplary embodiment, where the screen brightness adjustment method includes the following steps 101 to 103, as shown in fig. 1:
in step 101, the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light are acquired.
For example, the terminal may be provided with two paths, the first path may collect visible light included in the ambient light, convert the illumination intensity of the visible light into an Analog electrical signal through a sensor IC (sensor integrated circuit), further convert the Analog electrical signal into a Digital electrical signal through an ADC (Analog-to-Digital Converter), obtain an ADC value of the first channel by reading the Digital electrical signal, and reflect the illumination intensity of the visible light through the ADC value of the first channel. Similarly, the second passageway can gather the infrared light that ambient light includes to through sensor IC with the illumination intensity conversion of this infrared light for analog signal of telecommunication, and then convert digital signal of telecommunication into through the ADC, can acquire the ADC numerical value of this second passageway through reading this digital signal of telecommunication, the ADC numerical value of this second passageway can embody the illumination intensity of this infrared light.
In step 102, a reference illumination intensity fitting formula is obtained from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light.
For example, the terminal may acquire and store the plurality of illumination intensity fitting formulas in advance. Optionally, the terminal may first set a plurality of formulas to be fitted, where independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included in the light source, a dependent variable is the illumination intensity of the light source, and coefficients of the two independent variables are unknown, and then determine a plurality of test light sources, where types of the plurality of test light sources are not completely the same, and the illumination intensities of the plurality of test light sources are known. And respectively substituting the illumination intensity of visible light, the illumination intensity of infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted, determining the coefficients of the plurality of formulas to be fitted, substituting the coefficients of the plurality of formulas to be fitted into the plurality of formulas to be fitted, and obtaining the plurality of illumination intensity fitting formulas.
Specifically, taking the example of obtaining three fitting formulas of the illumination intensity, firstly, the terminal sets three formulas to be fitted, which are:
lux1＝(Channel0-CoB*Channel1)/CPL； (1)
lux2＝(CoC*Channel0-CoD*Channel1)/CPL； (2)
lux3＝(CoE*Channel0-CoF*Channel1)/CPL； (3)
wherein Channel0 is the value of the ADC corresponding to the first Channel, and Channel1 is the value of the ADC corresponding to the second Channel. The integrated gain control method includes the steps of (CPL _ time) integrating time set by a light sensor included in a first channel, integrating gain set by the light sensor included in the first channel, and TAC TA DC, where TA is an attenuation rate of a terminal TP (Touch Panel) to light, and TA 1/T, and T is a light transmittance of the terminal TP. For example, when T is 5%, TA is 1/0.05 is 20. DC (device coef) is a device factor, and in practical applications, the CPL (ADC Count per Lux) is calculated by using a light source with known illumination intensity of the included visible light, the CPL is an ADC value of the first channel corresponding to the illumination intensity of the visible light of Lux (Lux) under the fixed Integral _ time and Integral _ gain, and then the DC is calculated according to the CPL. From this, it is known that CPL, TAC, TA, and DC are known physical quantities for the terminal.
The above three equations can be transformed for ease of calculation as:
lux1＝Channel0/CPL-CoB*Channel1/CPL；
lux2＝CoC*Channel0/CPL-CoD*Channel1/CPL；
lux3＝CoE*Channel0/CPL-CoF*Channel1/CPL；
let K0 be 1/CPL and K1 be CoB/CPL, then:
lux1＝K0*Channel0-K1*Channel1； (4)
let K2 be CoC/CPL and K3 be CoD/CPL, then:
lux2＝K2*Channel-K3*Channel1； (5)
let K4 be CoE/CPL and K5 be CoF/CPL, then:
lux3＝K4*Channel0-K5*Channel1； (6)
from the relationships between K0, K1, K2, K3, K4 and K5 and CPL, CoC ═ K2/K0, CoD ═ K3/K0, CoE ═ K4/K0, and CoF ═ K5/K0.
From the formulas (4), (5) and (6), K1, K2, K3, K4 and K5 represented by Lux1, Lux2, Lux3, Channel0 and Channel1 can be obtained, and then CoB, CoC, CoD, CoE and CoF can be obtained from K1, K2, K3, K4 and K5.
A channel matrix is set, and the channel matrix can be determined according to the number of channels set by the sensor IC. For example, assuming that the terminal sets a first Channel and a second Channel corresponding to visible light and infrared light, respectively, the Channel matrix may be Channel (Channel 0, Channel 1), where Channel0 is an ADC value of the visible light included in the test illuminant, that is, an ADC value corresponding to the first Channel when the test illuminant is detected; channel1 is an ADC value of infrared light included in the test light source, that is, an ADC value corresponding to the first Channel when the test light source is detected. In practical application, if the number of channels set by the terminal is large, corresponding modification can be performed.
Then setting a coefficient matrix, wherein the column vector of the coefficient matrix can be determined by the number of the test light sources, and the more the number of the test light sources is, the larger the column number n is; the row vector of the coefficient matrix may be determined by the number of channels, the more channels, the larger the number m of rows. In this embodiment, two channels and three test light sources are taken as an example for explanation, that is, the coefficient matrix K may be:
the illuminance matrix L is set according to the illumination intensity of different test light sources, and may be L ═ Lux1, Lux2, Lux 3.
All the coefficient matrices can be calculated by substituting the Channel matrix, the coefficient matrix and the illuminance matrix into Channel K L, and after the coefficient matrices are obtained, CoB, CoC, CoD, CoE and CoF can be calculated. Then, substituting the CoB, CoC, CoD, CoE, and CoF into formula (1), formula (2), and formula (3) to obtain three illumination intensity fitting formulas, where the three illumination intensity fitting formulas may include a first formula corresponding to a light source including more infrared light and less visible light; including a third formula corresponding to a light source that includes less infrared light and more visible light; a second formula is summarized, which corresponds to a light source that includes visible light and infrared light that are substantially the same.
In practical application, the steps according to the three formulas to be fitted or the three illumination intensity fitting formulas can be executed by the server, and then the server can send the obtained three illumination intensity fitting formulas to the terminal so as to facilitate the terminal to store the three illumination intensity fitting formulas.
After the three illumination intensity fitting formulas are obtained, the terminal can obtain a reference illumination intensity fitting formula from the three illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light included in the ambient light. Specifically, after the terminal acquires the three illumination intensity fitting formulas, establishing a corresponding relation between a ratio which is a ratio of the illumination intensity of the infrared light of the light source to the illumination intensity of the visible light and a ratio which describes that the ratio is large, namely when the ratio meets a first range, the ratio corresponds to a first formula, at this moment, the light source comprises more infrared light and less visible light, and the illumination intensity of the light source calculated by the first formula is small; the ratio is smaller, namely when the ratio meets a third range, the ratio corresponds to a third formula, at this moment, the light source comprises less infrared light and more visible light, and the illumination intensity of the light source calculated by the third formula is larger; when the ratio satisfies a second range which is smaller than the first range and larger than the third range, the ratio corresponds to a second formula, at this time, the difference between infrared light and visible light included in the light source is small, and the illumination intensity of the light source calculated by the second formula is reasonable. When the terminal is located in the ambient light, the illumination intensity of the visible light and the illumination intensity of the infrared light included in the ambient light can be firstly obtained through the first channel and the second channel respectively, namely, the ADC value of the first channel and the ADC value of the second channel are read, then the ratio of the ADC value of the second channel to the ADC value of the first channel is calculated, then the corresponding relation of the ratio and the illumination intensity fitting formula is inquired according to the ratio, and the illumination intensity fitting formula corresponding to the ratio is obtained and serves as the reference illumination intensity fitting formula.
In practical application, the step of establishing the corresponding relationship between the ratio and the illumination intensity fitting formula may also be executed by the server, and then the server may send the obtained corresponding relationship between the ratio and the illumination intensity fitting formula to the terminal, so that the terminal can store the ratio and the illumination intensity fitting formula conveniently.
Or, when the terminal is located in the ambient light, the illumination intensity of the visible light and the illumination intensity of the infrared light included in the ambient light may be first obtained through the first Channel and the second Channel, that is, the ADC value of the first Channel and the ADC value of the second Channel are read, then the ADC value of the first Channel and the ADC value of the second Channel are respectively brought into the three illumination intensity fitting formulas, that is, the ADC value of the first Channel and the ADC value of the second Channel are respectively brought into Channel0 and Channel1 of the three illumination intensity fitting formulas, the three illumination intensity fitting formulas are adopted to calculate the illumination intensity Lux of the ambient light, and then the illumination intensity fitting formula corresponding to the target illumination intensity is obtained from the illumination intensities of the three ambient lights calculated by the three illumination intensity fitting formulas according to a preset rule as a reference illumination intensity fitting formula. For example, an illumination intensity fitting formula corresponding to the maximum illumination intensity among the illumination intensities of the three ambient lights may be obtained as a reference illumination intensity fitting formula; or acquiring an illumination intensity fitting formula corresponding to the minimum illumination intensity of the three ambient light illumination intensities as a reference illumination intensity fitting formula.
In step 103, the brightness of the screen is adjusted according to the reference illumination intensity fitting formula.
For example, after the terminal obtains the reference illumination intensity fitting formula, the terminal may bring the illumination intensity of the visible light and the illumination intensity of the infrared light included in the ambient light into the reference illumination intensity fitting formula, that is, bring the ADC value of the first Channel and the ADC value of the second Channel under the ambient light into Channel0 and Channel1 of the reference illumination intensity fitting formula, calculate the illumination intensity Lux of the ambient light, further adjust the brightness of the screen according to the illumination intensity Lux, and when the Lux is larger, improve the brightness of the screen; when the Lux is small, the brightness of the screen is reduced.
According to the technical scheme, the terminal can fit the illumination intensity of the environment light according to the visible light and the infrared light which are included by the environment light, and then the screen brightness is adjusted according to the illumination intensity of the environment light, so that the condition that the screen brightness adjustment error is large when the visible light illumination intensity included by the environment light is small and the infrared light illumination intensity is large is avoided.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods.
Fig. 2a is a schematic structural diagram illustrating a screen brightness adjusting apparatus 20 according to an exemplary embodiment, where the apparatus 20 may be implemented as part or all of an electronic device by software, hardware or a combination of both. As shown in fig. 2a, the screen brightness adjusting apparatus 20 includes a first obtaining module 201, a second obtaining module 202 and an adjusting module 203.
The first obtaining module 201 is configured to obtain an illumination intensity of visible light and an illumination intensity of infrared light included in the ambient light.
A second obtaining module 202, configured to obtain a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light.
And the adjusting module 203 is configured to adjust the brightness of the screen according to the reference illumination intensity fitting formula.
In one embodiment, as shown in fig. 2b, the second fetch module 202 includes a first fetch submodule 2021 and a second fetch submodule 2022.
The first obtaining sub-module 2021 is configured to obtain a ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light.
The second obtaining sub-module 2022 is configured to obtain a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
In one embodiment, as shown in fig. 2c, the second fetch module 202 includes a third fetch submodule 2023 and a fourth fetch submodule 2024.
The third obtaining sub-module 2023 is configured to bring the illumination intensity of the visible light and the illumination intensity of the infrared light into the multiple illumination intensity fitting formulas, respectively, and obtain the illumination intensities of the multiple ambient lights obtained by the multiple illumination intensity fitting formulas through calculation, respectively.
The fourth obtaining sub-module 2024 is configured to obtain the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively obtained by calculation through the plurality of illumination intensity fitting formulas.
In one embodiment, as shown in fig. 2d, the apparatus 20 further comprises a setting module 204, a first determining module 205, a second determining module 206 and a third obtaining module 207.
The setting module 204 is configured to set a plurality of formulas to be fitted, where independent variables of the formulas to be fitted are illumination intensity of visible light and illumination intensity of infrared light included in a light source, a dependent variable is the illumination intensity of the light source, and coefficients of the two independent variables are unknown.
The first determining module 205 is configured to determine a plurality of test light sources, where types of the test light sources are not completely the same, and illumination intensities of the test light sources are known.
A second determining module 206, configured to bring the illumination intensity of the visible light, the illumination intensity of the infrared light, and the illumination intensity of the plurality of test light sources included in the plurality of test light sources into the plurality of formulas to be fitted, respectively, and determine coefficients of the plurality of formulas to be fitted.
A third obtaining module 207, configured to bring the coefficients of the multiple formulas to be fitted into the multiple formulas to be fitted, so as to obtain the multiple fitting formulas of illumination intensity.
In one embodiment, as shown in fig. 2e, the adjusting module 203 includes a fifth obtaining sub-module 2031 and an adjusting sub-module 2032.
The fifth obtaining sub-module 2031 is configured to bring the illumination intensity of the visible light and the illumination intensity of the infrared light included in the ambient light into the reference illumination intensity fitting formula, and obtain the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
The adjusting submodule 2032 is configured to adjust the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
The embodiment of the disclosure provides a screen brightness adjusting device, which can fit the illumination intensity of ambient light according to visible light and infrared light included by the ambient light, and further adjust the screen brightness according to the illumination intensity of the ambient light, thereby avoiding the situation that the screen brightness adjustment error is large when the visible light illumination intensity included by the ambient light is small and the infrared light illumination intensity is large.
The disclosed embodiment provides a screen brightness adjusting device, which includes:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light;
acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
and adjusting the brightness of the screen according to the reference illumination intensity fitting formula.
In one embodiment, the processor may be further configured to: acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light; and acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
In one embodiment, the processor may be further configured to: respectively bringing the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas; and acquiring the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas.
In one embodiment, the processor may be further configured to: setting a plurality of formulas to be fitted, wherein independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown; determining a plurality of test light sources, wherein the types of the plurality of test light sources are not completely the same, and the illumination intensities of the plurality of test light sources are known; respectively substituting the illumination intensity of visible light, the illumination intensity of infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted, and determining coefficients of the plurality of formulas to be fitted; and substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
In one embodiment, the processor may be further configured to: bringing the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light into the reference illumination intensity fitting formula, and obtaining the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula; and adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
The embodiment of the disclosure provides a screen brightness adjusting device, which can fit the illumination intensity of ambient light according to visible light and infrared light included by the ambient light, and further adjust the screen brightness according to the illumination intensity of the ambient light, thereby avoiding the situation that the screen brightness adjustment error is large when the visible light illumination intensity included by the ambient light is small and the infrared light illumination intensity is large.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 3 is a block diagram illustrating a structure of a screen brightness adjusting apparatus 30 according to an exemplary embodiment, where the apparatus 30 is suitable for a terminal device. For example, the apparatus 30 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
The apparatus 30 may include one or more of the following components: processing component 302, memory 304, power component 306, multimedia component 308, audio component 310, input/output (I/O) interface 312, sensor component 314, and communication component 316.
The processing component 302 generally controls overall operation of the device 30, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 302 may include one or more processors 320 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 302 can include one or more modules that facilitate interaction between the processing component 302 and other components. For example, the processing component 302 may include a multimedia module to facilitate interaction between the multimedia component 308 and the processing component 302.
The memory 304 is configured to store various types of data to support operations at the apparatus 30. Examples of such data include instructions for any application or method operating on device 30, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 304 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 306 provides power to the various components of the device 30. The power components 306 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 30.
The multimedia component 308 includes a screen providing an output interface between the device 30 and the user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 308 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 30 is in an operating mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
The audio component 310 is configured to output and/or input audio signals. For example, audio component 310 includes a Microphone (MIC) configured to receive external audio signals when apparatus 30 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 304 or transmitted via the communication component 316. In some embodiments, audio component 310 also includes a speaker for outputting audio signals.
The I/O interface 312 provides an interface between the processing component 302 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
The communication component 316 is configured to facilitate wired or wireless communication between the apparatus 30 and other devices. The device 30 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 316 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the apparatus 30 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer-readable storage medium comprising instructions, such as the memory 304, that are executable by the processor 320 of the device 30 to perform the above-described method is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
The disclosed embodiments provide a non-transitory computer-readable storage medium, in which instructions, when executed by a processor of a device 30, enable the device 30 to perform the above-described screen brightness adjustment method, the method including:
the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light are acquired.
And acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light.
And adjusting the brightness of the screen according to the reference illumination intensity fitting formula.
In one embodiment, the obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes: acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light; and acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
In one embodiment, the obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes: respectively bringing the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas; and acquiring the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas.
In one embodiment, the method further comprises: setting a plurality of formulas to be fitted, wherein independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown; determining a plurality of test light sources, wherein the types of the plurality of test light sources are not completely the same, and the illumination intensities of the plurality of test light sources are known; respectively substituting the illumination intensity of visible light, the illumination intensity of infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted, and determining coefficients of the plurality of formulas to be fitted; and substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
In one embodiment, said adjusting the brightness of said screen according to said reference illumination intensity fitting formula comprises: bringing the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light into the reference illumination intensity fitting formula, and obtaining the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula; and adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A screen brightness adjusting method is characterized by comprising the following steps:
acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light;
acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
adjusting the brightness of the screen according to the reference illumination intensity fitting formula;
the obtaining of the reference illumination intensity fitting formula from the pre-stored multiple illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes:
respectively bringing the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas;
acquiring the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas;
the obtaining the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas includes:
taking an illumination intensity fitting formula corresponding to the maximum illumination intensity of the ambient light obtained by calculation as a reference illumination intensity fitting formula; or taking the illumination intensity fitting formula corresponding to the minimum calculated illumination intensity of the ambient light as a reference illumination intensity fitting formula.
2. The method according to claim 1, wherein the obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light comprises:
acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light;
and acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
setting a plurality of formulas to be fitted, wherein independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown;
determining a plurality of test light sources, wherein the types of the plurality of test light sources are not completely the same, and the illumination intensities of the plurality of test light sources are known;
respectively substituting the illumination intensity of visible light, the illumination intensity of infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted, and determining coefficients of the plurality of formulas to be fitted;
and substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
4. The method according to claim 1 or 2, wherein said adjusting the brightness of the screen according to the reference illumination intensity fitting formula comprises:
bringing the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light into the reference illumination intensity fitting formula, and obtaining the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula;
and adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
5. A screen brightness adjustment apparatus, comprising:
the first acquisition module is used for acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in the ambient light;
the second acquisition module is used for acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
the adjusting module is used for adjusting the brightness of the screen according to the reference illumination intensity fitting formula;
the second acquisition module includes:
the third obtaining sub-module is used for respectively substituting the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas;
a fourth obtaining sub-module, configured to obtain the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively obtained through calculation by the plurality of illumination intensity fitting formulas;
the fourth obtaining submodule is specifically configured to use an illumination intensity fitting formula corresponding to the calculated maximum illumination intensity of the ambient light as a reference illumination intensity fitting formula; or taking the illumination intensity fitting formula corresponding to the minimum calculated illumination intensity of the ambient light as a reference illumination intensity fitting formula.
6. The apparatus of claim 5, wherein the second obtaining module comprises:
the first acquisition submodule is used for acquiring the ratio of the illumination intensity of the visible light to the illumination intensity of the infrared light;
and the second obtaining submodule is used for obtaining a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the ratio.
7. The apparatus of claim 5 or 6, further comprising:
the device comprises a setting module, a fitting module and a fitting module, wherein the setting module is used for setting a plurality of formulas to be fitted, independent variables of the formulas to be fitted are the illumination intensity of visible light and the illumination intensity of infrared light included by a light source, dependent variables are the illumination intensity of the light source, and coefficients of the two independent variables are unknown;
the device comprises a first determining module, a second determining module and a control module, wherein the first determining module is used for determining a plurality of test light sources, the types of the test light sources are not completely the same, and the illumination intensities of the test light sources are known;
the second determining module is used for respectively substituting the illumination intensity of the visible light, the illumination intensity of the infrared light and the illumination intensity of the plurality of test light sources into the plurality of formulas to be fitted and determining coefficients of the plurality of formulas to be fitted;
and the third obtaining module is used for substituting the coefficients of the formulas to be fitted into the formulas to be fitted to obtain the fitting formulas of the plurality of illumination intensities.
8. The apparatus of claim 5 or 6, wherein the adjustment module comprises:
the fifth obtaining sub-module is used for substituting the illumination intensity of the visible light and the illumination intensity of the infrared light included in the environment light into the reference illumination intensity fitting formula to obtain the illumination intensity of the environment light calculated by the reference illumination intensity fitting formula;
and the adjusting submodule is used for adjusting the brightness of the screen according to the illumination intensity of the ambient light calculated by the reference illumination intensity fitting formula.
9. A screen brightness adjustment apparatus, comprising:
a processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
acquiring the illumination intensity of visible light and the illumination intensity of infrared light included in ambient light;
acquiring a reference illumination intensity fitting formula from a plurality of pre-stored illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light;
adjusting the brightness of the screen according to the reference illumination intensity fitting formula;
the obtaining of the reference illumination intensity fitting formula from the pre-stored multiple illumination intensity fitting formulas according to the illumination intensity of the visible light and the illumination intensity of the infrared light includes:
respectively bringing the illumination intensity of the visible light and the illumination intensity of the infrared light into the plurality of illumination intensity fitting formulas to obtain a plurality of illumination intensities of the environment light which are respectively calculated by the plurality of illumination intensity fitting formulas;
acquiring the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas;
the obtaining the reference illumination intensity fitting formula according to the illumination intensities of the plurality of ambient lights respectively calculated by the plurality of illumination intensity fitting formulas includes:
taking an illumination intensity fitting formula corresponding to the maximum illumination intensity of the ambient light obtained by calculation as a reference illumination intensity fitting formula; or taking the illumination intensity fitting formula corresponding to the minimum calculated illumination intensity of the ambient light as a reference illumination intensity fitting formula.
10. A computer-readable storage medium having stored thereon computer instructions, which when executed by a processor, perform the steps of the method of any one of claims 1 to 4.
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| CN116597785A (en) * | 2023-04-18 | 2023-08-15 | 艺壹佳文化科技(广东)有限公司 | Identification backlight control method, device, equipment and storage medium |
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