CN107966209B - Ambient light detection method, ambient light detection device, storage medium, and electronic apparatus - Google Patents
Ambient light detection method, ambient light detection device, storage medium, and electronic apparatus Download PDFInfo
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Abstract
The embodiment of the application discloses an ambient light detection method, an ambient light detection device, a storage medium and electronic equipment, wherein the electronic equipment comprises a plurality of ambient light sensors which are arranged at different positions of a screen display area; the method comprises the following steps: respectively obtaining the current brightness value of the screen area corresponding to each ambient light sensor to obtain a plurality of brightness values, comparing the brightness values, determining that the minimum brightness value is a target brightness value, determining that the ambient light sensor corresponding to the target brightness value is a target ambient light sensor, obtaining a first light intensity value currently detected by the target ambient light sensor, and calculating the target light intensity value according to the first light intensity value and the target brightness value. This application is through setting up a plurality of ambient light sensors in the terminal, selects the ambient light sensor that corresponds the screen area luminance minimum to carry out photometry, can reduce the interference of screen luminance to the testing result, promotes the accuracy of ambient light detection.
Description
Technical Field
The present application relates to the field of electronic devices, and in particular, to a method and an apparatus for detecting ambient light, a storage medium, and an electronic device.
Background
With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. In the use process of the electronic equipment, for example, in the call process, in order to avoid misoperation of the electronic equipment by a user, when the face of the user approaches the electronic equipment for a certain distance, the electronic equipment automatically turns off the screen. Generally, an electronic device detects approach and departure of a user's face by a proximity sensor, and controls the electronic device to turn off or on a screen according to the detected data.
At present, information security and identity authentication on mobile intelligent terminals are increasingly highlighted, and more intelligent terminals integrate sensors of biometric identification technology for identifying biological information such as fingerprints, human faces, irises and the like, and in addition, sensors such as an ambient light sensor, a distance sensor and the like are required, and the sensors are often arranged on a front panel of the terminal. Therefore, a scheme of placing the sensor below the screen can be adopted to realize a full-screen scheme, but taking the ambient light sensor as an example, the sensor is interfered by the brightness of the screen during light measurement, so that the measurement result of the ambient light is inaccurate.
Disclosure of Invention
The embodiment of the application provides an ambient light detection method and device, a storage medium and an electronic device, which can improve the accuracy of ambient light detection.
In a first aspect, an embodiment of the present application provides an ambient light detection method, which is applied to an electronic device, where the electronic device includes a plurality of ambient light sensors disposed at different positions in a screen display area, and the ambient light detection method includes:
respectively acquiring the current brightness value of a screen area corresponding to each ambient light sensor to obtain a plurality of brightness values;
comparing the plurality of brightness values, and determining that the minimum brightness value is a target brightness value, wherein the ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
acquiring a first light intensity value currently detected by the target environment light sensor;
and calculating a target light intensity value according to the first light intensity value and the target brightness value.
In a second aspect, an embodiment of the present application further provides an ambient light detection apparatus, which is applied to an electronic device, where the electronic device includes a plurality of ambient light sensors disposed at different positions in a screen display area, and the ambient light detection apparatus includes: the device comprises a first acquisition module, a determination module, a second acquisition module and a calculation module;
the first acquisition module is used for respectively acquiring the current brightness value of the screen area corresponding to each ambient light sensor to obtain a plurality of brightness values;
the determining module is configured to compare the plurality of brightness values, determine that a minimum brightness value is a target brightness value, and determine that an ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
the second obtaining module is configured to obtain a first light intensity value currently detected by the target ambient light sensor;
and the calculating module is used for calculating a target light intensity value according to the first light intensity value and the target brightness value.
In a third aspect, the present application further provides a storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the steps of the above-mentioned ambient light detection method.
In a fourth aspect, an embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the above-mentioned ambient light detection method when executing the program.
The ambient light detection method provided by the embodiment of the application obtains current brightness values of a screen area corresponding to each ambient light sensor respectively to obtain a plurality of brightness values, compares the plurality of brightness values, determines that the minimum brightness value is a target brightness value, obtains a first light intensity value currently detected by the target ambient light sensor by taking the ambient light sensor corresponding to the target brightness value as a target ambient light sensor, and calculates a target light intensity value according to the first light intensity value and the target brightness value. This application is through setting up a plurality of ambient light sensors in the terminal, selects the ambient light sensor that corresponds the screen area luminance minimum to carry out photometry, can reduce the interference of screen luminance to the testing result, promotes the accuracy of ambient light detection.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic plan view of a display screen of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic flowchart of an ambient light detection method according to an embodiment of the present disclosure.
Fig. 3 is another schematic flow chart of an ambient light detection method according to an embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of an ambient light detection apparatus according to an embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of an ambient light detection device according to an embodiment of the present application.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 7 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
Referring to the drawings, wherein like reference numbers refer to like elements, the principles of the present application are illustrated as being implemented in a suitable computing environment. The following description is based on illustrated embodiments of the application and should not be taken as limiting the application with respect to other embodiments that are not detailed herein.
In the description that follows, specific embodiments of the present application will be described with reference to steps and symbols executed by one or more computers, unless otherwise indicated. Accordingly, these steps and operations will be referred to, several times, as being performed by a computer, the computer performing operations involving a processing unit of the computer in electronic signals representing data in a structured form. This operation transforms the data or maintains it at locations in the computer's memory system, which may be reconfigured or otherwise altered in a manner well known to those skilled in the art. The data maintains a data structure that is a physical location of the memory that has particular characteristics defined by the data format. However, while the principles of the application have been described in language specific to above, it is not intended to be limited to the specific form set forth herein, and it will be recognized by those of ordinary skill in the art that various of the steps and operations described below may be implemented in hardware.
The principles of the present application may be employed in numerous other general-purpose or special-purpose computing, communication environments or configurations. Examples of well known computing systems, environments, and configurations that may be suitable for use with the application include, but are not limited to, hand-held telephones, personal computers, servers, multiprocessor systems, microcomputer-based systems, mainframe-based computers, and distributed computing environments that include any of the above systems or devices.
The details will be described below separately.
The present embodiment will be described from the perspective of an ambient light detection apparatus, which may be specifically integrated in an electronic device, which may be an electronic device including an ambient light sensor (e.g., a smart phone, a tablet computer).
Referring first to fig. 1, which is a schematic plan view of a display screen according to an embodiment of the present invention, a display screen 21 includes a display area 215 and a non-display area 216. Wherein the display area 215 performs the display function of the display screen 21 for displaying information. The non-display area 216 does not display information. The display screen 21 may include a plurality of non-display regions 216 spaced apart from one another. For example, non-display regions 216 are provided at the top and bottom of the display screen 21, respectively. The non-display area 216 may be used to set up functional components such as a camera, a receiver, and a fingerprint module.
Here, the ambient light sensor 213 is disposed in a display area 215 of the screen 21, for example, two ambient light sensors are disposed in the upper left corner and the lower right corner of the display area 215 as shown in fig. 1.
In some embodiments, the Display 21 may be a Liquid Crystal Display (LCD) or Organic Light-Emitting Diode (OLED) Display, or the like. When the display screen 21 is a liquid crystal display screen, the display layer may include a backlight plate, a lower polarizer, an array substrate, a liquid crystal layer, a color film substrate, an upper polarizer, and the like, which are sequentially stacked. When the display panel 21 is an organic light emitting diode display panel, the display layer may include a base layer, an anode, an organic layer, a conductive layer, an emission layer, a cathode, and the like, which are sequentially stacked.
Fig. 2 is a schematic flowchart of an ambient light detection method provided in an embodiment of the present application, where the method is applied to an electronic device, where the electronic device includes a plurality of ambient light sensors disposed at different positions in a display area of a screen, and the ambient light detection includes the following steps:
step S101, respectively obtaining a current brightness value of a screen region corresponding to each ambient light sensor to obtain a plurality of brightness values.
For example, the electronic device includes 4 ambient light sensors respectively disposed at a lower left corner, an upper right corner, and a lower right corner of the screen display area, and then the screen areas respectively corresponding to the 4 ambient light sensors are the four corners of the display area.
In an embodiment, the area of the screen region corresponding to the ambient light sensor may be 1cm × 1cm, that is, 1cm2In other embodiments, the area of the screen region corresponding to the ambient light sensor may also be represented by the number of pixels, for example, in a display screen with a resolution of 1920 × 1080, the number of pixels in the image is 2073600, and the screen region corresponding to the ambient light sensor may be a region including 100 × 50, that is, 5000 pixels.
Before obtaining the current brightness value of the screen area corresponding to each ambient light sensor, it may also be determined whether the electronic device is in a bright screen state, if so, an image currently displayed on the screen is obtained, and then the current brightness value of the image area corresponding to the ambient light sensor in the image is further obtained. Specifically, the screen is in a bright screen state as a trigger condition, when the progress of the system application program is monitored, whether the screen of the electronic device is in the bright screen state is judged, and when it is monitored that the capacitive touch screen is lightened, the screen is in the bright screen state, that is, an image currently displayed on the screen is acquired.
In an embodiment, the brightness value of each pixel point in the screen region corresponding to the ambient light sensor may be obtained, specifically, the brightness value of each pixel point may be extracted, and the brightness values are recorded and stored in a matrix form, so that the brightness values may be directly called subsequently, and then the average brightness value of the region is calculated, for example, the obtained brightness values of each pixel point are added, and the obtained brightness values are divided by the number of the pixel points, so as to generate the current brightness value of the screen region corresponding to the ambient light sensor. In the image obtained from the screen region, the red component, the green component, and the blue component (red, green, blue, RGB) of each pixel point may be converted into Hue, saturation, and brightness value (Hue, saturation, value, HSV), and the brightness value of each pixel point may be obtained.
In the above embodiment, in the acquired image, the red component, the green component, and the blue component of each pixel point are acquired, and RGB of each pixel point is converted into HSV. The conversion of the RGB color space into the HSV color space is prior art and will not be described herein.
Step S102, comparing the plurality of brightness values, and determining that the minimum brightness value is a target brightness value and the ambient light sensor corresponding to the target brightness value is a target ambient light sensor.
After the brightness values of the screen areas corresponding to the multiple ambient light sensors are acquired, the multiple brightness values are compared to determine the minimum target brightness value. In the embodiment of the present invention, the unit of the luminance value may be nits (nits). For example, in an embodiment, the electronic device includes four ambient light sensors respectively disposed at the upper left, lower left, upper right, and lower right of the screen display area, and the brightness values of the 4 screen areas measured in step S101 are respectively 200nits, 500nits, 300nits, and 350nits, so that the minimum brightness value is 200nits, that is, the target brightness value, and the ambient light sensor corresponding to the upper left position of the screen display area is determined to be the target ambient light sensor.
In an embodiment, if there is a screen region having the same brightness value and the smallest brightness among the current brightness values of the screen regions corresponding to the plurality of ambient light sensors, the ambient light sensor corresponding to any one of the screen regions having the same brightness may be designated as the target ambient light sensor.
Step S103, a first light intensity value currently detected by the target ambient light sensor is obtained.
The ambient light sensor is mainly composed of a photosensitive element. At present, the photosensitive element is developed rapidly, has various varieties and is widely applied. The products sold in the market are photoresistors, photodiodes, phototriodes, silicon photocells and the like. The ambient light sensor can sense the ambient light condition and inform the processing chip to automatically adjust the backlight brightness of the display, thereby reducing the power consumption of the product. For example, in mobile devices such as mobile phones, notebooks, GPS, etc., the power consumed by the display is up to 30% of the total power of the battery, and the ambient light sensor can prolong the working time of the battery to the maximum extent. Ambient light sensors, on the other hand, help the display to provide a soft picture. When the ambient brightness is high, the LCD using the ambient light sensor will automatically adjust to high brightness. When the external environment is dark, the display will turn to low brightness.
In an embodiment, the light intensity values detected by the ambient light sensor for the preset number of times may be obtained, and then an average value of the light intensity values is calculated to be the first light intensity value. The default number of times can be set according to an actual situation, for example, 10 times, and data is collected every 1 second to obtain sampling data of an ambient light sensor in the electronic device, which is continuously sampled 10 times within 10 seconds, and when ambient light is relatively stable (for example, in an indoor environment), the data jitter is very small, and the data jitter is basically single-digit jitter, such as read values of 501nits, 505nits, 503nits, and the like. After the plurality of light intensity values are obtained, all the values may be added, and then the number may be divided to obtain an average light intensity value of the plurality of light intensity values. For example, within a preset time period, the light intensity values of the ambient light sensor are sampled n times to obtain n light intensity values, such as Q1, Q2, Q3 … … Qn, etc., and the average light intensity value, i.e., the first light intensity value, can be obtained by calculating Q1+ Q2+ Q3+ … … + Qn and dividing the result by n.
And step S104, calculating a target light intensity value according to the first light intensity value and the target brightness value.
In the embodiment of the invention, because the ambient light is arranged below the display area of the screen, the brightness of the screen can interfere with the measurement of the ambient light sensor. Specifically, the target light intensity value may be calculated by subtracting the target luminance value from the first light intensity value, the target light intensity value being closer to the light intensity value of the current ambient light.
The unit of the first light intensity value and the unit of the target brightness value may be different, for example, the unit of the first light intensity value may be Lux (Lux), and the unit of the target brightness value may be nit, so that the units need to be converted before calculation, so that the unit of the first light intensity value is the same as the unit of the target brightness value, and calculation is performed today.
After the electronic equipment obtains the target light intensity value, the brightness of the display screen can be adjusted according to the ambient light intensity, and automatic adjustment of the brightness is achieved.
As can be seen from the above, in the embodiment of the present application, the current brightness value of the screen area corresponding to each ambient light sensor may be respectively obtained to obtain a plurality of brightness values, the plurality of brightness values are compared, it is determined that the minimum brightness value is the target brightness value, the ambient light sensor corresponding to the target brightness value is the target ambient light sensor, the first light intensity value currently detected by the target ambient light sensor is obtained, and the target light intensity value is calculated according to the first light intensity value and the target brightness value. This application is through setting up a plurality of ambient light sensors in the terminal, selects the ambient light sensor that corresponds the screen area luminance minimum to carry out photometry, can reduce the interference of screen luminance to the testing result, promotes the accuracy of ambient light detection.
According to the description of the above embodiment, the ambient light detection method of the present application will be further explained below.
Referring to fig. 3, fig. 3 is a schematic flowchart of another ambient light detection method according to an embodiment of the present application, including the following steps:
step S201, obtaining a brightness value of each pixel point in a screen region corresponding to the ambient light sensor.
In an embodiment, the brightness value of each pixel may be extracted, and the extracted brightness value is recorded and stored in a matrix form, so that the brightness value is called directly in the following step, and then the average brightness value of the area is calculated, for example, the obtained brightness values of each pixel are added, and the obtained brightness values are divided by the number of the pixels, so as to generate the current brightness value of the screen area corresponding to the ambient light sensor. In the image obtained from the screen region, the red component, the green component, and the blue component (red, green, blue, RGB) of each pixel point may be converted into Hue, saturation, and brightness value (Hue, saturation, value, HSV), and the brightness value of each pixel point may be obtained.
Step S202, calculating an average brightness value according to the brightness value of each pixel point, determining the average brightness value as the current brightness value of the screen area corresponding to the ambient light sensor, and obtaining the average brightness value for multiple times to obtain multiple brightness values.
In an embodiment, before obtaining the brightness value of each pixel, it may be further determined whether the electronic device is in a bright screen state, and if so, obtaining an image currently displayed on a screen, and further obtaining the brightness value of each pixel in an image area corresponding to the ambient light sensor in the image. Specifically, the method includes that a screen is in a bright screen state as a trigger condition, monitoring the progress of a system application program to judge whether the screen of the electronic device is in the bright screen state, and when it is monitored that the capacitive touch screen is lightened, indicating that the screen is in the bright screen state, namely acquiring an image currently displayed by the screen
Step S203, comparing the plurality of brightness values, and determining that the minimum brightness value is a target brightness value, and the ambient light sensor corresponding to the target brightness value is a target ambient light sensor.
In an embodiment, after the brightness values of the screen regions corresponding to the multiple ambient light sensors are obtained, the multiple brightness values are compared to determine a minimum target brightness value. In the embodiment of the present invention, the unit of the luminance value may be nits (nits). For example, in an embodiment, the electronic device includes four ambient light sensors respectively disposed at the upper left, lower left, upper right, and lower right of the screen display area, and the brightness values of the 4 screen areas measured in step S101 are respectively 200nits, 500nits, 300nits, and 350nits, so that the minimum brightness value is 200nits, that is, the target brightness value, and the ambient light sensor corresponding to the upper left position of the screen display area is determined to be the target ambient light sensor.
Step S204, a first light intensity value currently detected by the target ambient light sensor is obtained.
In an embodiment, the light intensity values detected by the ambient light sensor for the preset number of times may be obtained, and then an average value of the light intensity values is calculated to be the first light intensity value. The default number of times can be set according to an actual situation, for example, 10 times, and data is collected every 1 second to obtain sampling data of an ambient light sensor in the electronic device, which is continuously sampled 10 times within 10 seconds, and when ambient light is relatively stable (for example, in an indoor environment), the data jitter is very small, and the data jitter is basically single-digit jitter, such as read values of 501nits, 505nits, 503nits, and the like. After the plurality of light intensity values are obtained, all the values may be added, and then the number may be divided to obtain an average light intensity value of the plurality of light intensity values.
In step S205, a second light intensity value currently detected by an ambient light sensor other than the target ambient light sensor is obtained.
Here, the second light intensity value currently detected by the ambient light sensor other than the target ambient light sensor may be the same as in step S204.
In step S206, a difference between the second light intensity value and the first light intensity value is calculated.
Step S207, determining whether the difference is smaller than a preset value, if so, performing step S208, and if not, ending the process.
In practical use, because the plurality of ambient light sensors are all arranged in the display area of the screen, and the display area is also the touch area of the electronic device, when a user performs touch operation on the electronic device, there may be inaccuracy in the measured light intensity value caused by the fact that a finger or other objects of the user are shielded above the ambient light sensors, and therefore it can be determined whether the target ambient light sensor is shielded, and if not, the next step is continuously executed.
The above-mentioned judging whether the target ambient light sensor is blocked may be performed by judging whether a difference between a ground light intensity value measured by the target sensor and second light intensity values measured by other ambient light sensors is smaller than a preset value, and since a difference between light intensity values measured by the ambient light sensor and other ambient light sensors is relatively large when one of the plurality of ambient light sensors in the electronic device is blocked, the scheme is adopted to judge whether the target ambient light sensor is blocked. If the difference between the second light intensity value and the first light intensity value is smaller than the preset value, it is determined that the target ambient light sensor is not blocked, and step S208 is further performed.
In step S208, a difference between the first light intensity value and the target brightness value is calculated, and the difference is determined as the target light intensity value.
In the embodiment of the invention, because the ambient light is arranged below the display area of the screen, the brightness of the screen can interfere with the measurement of the ambient light sensor. Specifically, the target light intensity value may be calculated by subtracting the target luminance value from the first light intensity value, the target light intensity value being closer to the light intensity value of the current ambient light.
After the electronic equipment obtains the target light intensity value, the brightness of the display screen can be adjusted according to the ambient light intensity, and automatic adjustment of the brightness is achieved.
As can be seen from the above, in the embodiment of the present application, the luminance value of each pixel point in the screen region corresponding to the ambient light sensor may be obtained, the average luminance value is calculated according to the luminance value of each pixel point, and the average luminance value is determined to be the current luminance value of the screen region corresponding to the ambient light sensor, a plurality of luminance values are obtained by obtaining for a plurality of times, the plurality of luminance values are compared, the minimum luminance value is determined to be the target luminance value, the ambient light sensor corresponding to the target luminance value is the target ambient light sensor, the first light intensity value currently detected by the target ambient light sensor is obtained, the second light intensity value currently detected by the ambient light sensor other than the target ambient light sensor is obtained, the difference between the second light intensity value and the first light intensity value is calculated, whether the difference is smaller than the preset value is determined, if yes, the difference between the first, and determines the difference as the target light intensity value. This application is through setting up a plurality of ambient light sensors in the terminal, selects the ambient light sensor that corresponds the screen area luminance minimum to carry out photometry, can reduce the interference of screen luminance to the testing result, promotes the accuracy of ambient light detection.
In order to better implement the ambient light detection method provided by the embodiment of the present application, the embodiment of the present application further provides a device based on the ambient light detection method. Wherein the meaning of the noun is the same as that in the above-mentioned ambient light detection method, and the details of the implementation can be referred to the description in the method embodiment.
Referring to fig. 4, fig. 4 is a schematic structural diagram of an ambient light detection apparatus according to an embodiment of the present application, which is applied to an electronic device, where the electronic device includes a plurality of ambient light sensors disposed at different positions of a screen display area, and the ambient light detection apparatus 30 includes: a first obtaining module 301, a determining module 302, a second obtaining module 303 and a calculating module 304;
the first obtaining module 301 is configured to obtain a current brightness value of a screen area corresponding to each ambient light sensor, so as to obtain a plurality of brightness values;
the determining module 302 is configured to compare the plurality of brightness values, determine that a minimum brightness value is a target brightness value, and determine that an ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
the second obtaining module 303 is configured to obtain a first light intensity value currently detected by the target ambient light sensor;
the calculating module 304 is configured to calculate a target light intensity value according to the first light intensity value and the target brightness value.
Continuing to refer to fig. 5, in an embodiment, the first obtaining module 301 includes: an acquisition sub-module 3011 and a calculation sub-module 3012;
the obtaining submodule 3011 is configured to obtain a brightness value of each pixel point in a screen region corresponding to the ambient light sensor;
the calculating submodule 3012 is configured to calculate an average brightness value according to the brightness value of each pixel, determine that the average brightness value is a current brightness value of a screen region corresponding to the ambient light sensor, and obtain multiple brightness values for multiple times.
In an embodiment, the calculating module 304 is specifically configured to calculate a difference between the first light intensity value and the target brightness value, and determine the difference as the target light intensity value.
Further, the ambient light detection device 30 may further include: a third obtaining module 305 and a judging module 306;
the third obtaining module 305 is configured to obtain a second light intensity value currently detected by an ambient light sensor other than the target ambient light sensor after the second obtaining module 303 obtains the first light intensity value currently detected by the target ambient light sensor;
the judging module 306 is configured to calculate a difference between the second light intensity value and the first light intensity value, and judge whether the difference satisfies a preset condition;
the calculating module 304 is specifically configured to calculate the target light intensity value according to the first light intensity value and the target brightness value when the determining module 306 determines that the target light intensity value is positive.
As can be seen from the above, the ambient light detection apparatus 30 provided in this embodiment of the application may respectively obtain, by the first obtaining module 301, the current luminance value of the screen region corresponding to each ambient light sensor to obtain a plurality of luminance values, the determining module 302 compares the plurality of luminance values to determine that the minimum luminance value is the target luminance value, the ambient light sensor corresponding to the target luminance value is the target ambient light sensor, the second obtaining module 303 obtains the first light intensity value currently detected by the target ambient light sensor, and the calculating module 304 calculates the target light intensity value according to the first light intensity value and the target luminance value. This application is through setting up a plurality of ambient light sensors in the terminal, selects the ambient light sensor that corresponds the screen area luminance minimum to carry out photometry, can reduce the interference of screen luminance to the testing result, promotes the accuracy of ambient light detection.
The present application further provides a storage medium having a computer program stored thereon, where the computer program is executed by a processor to implement the method for detecting ambient light provided by the method embodiments.
The present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the ambient light detection method provided by the method embodiments.
In another embodiment of the present application, an electronic device is also provided, and the electronic device may be a smart phone, a tablet computer, or the like. As shown in fig. 6, the electronic device 400 includes a processor 401, a memory 402. The processor 401 is electrically connected to the memory 402.
The processor 401 is a control center of the electronic device 400, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or loading an application program stored in the memory 402 and calling data stored in the memory 402, thereby integrally monitoring the electronic device.
In this embodiment, the processor 401 in the electronic device 400 loads instructions corresponding to processes of one or more application programs into the memory 402 according to the following steps, and the processor 401 runs the application programs stored in the memory 402, thereby implementing various functions:
respectively acquiring the current brightness value of a screen area corresponding to each ambient light sensor to obtain a plurality of brightness values;
comparing the plurality of brightness values, and determining that the minimum brightness value is a target brightness value, wherein the ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
acquiring a first light intensity value currently detected by the target environment light sensor;
and calculating a target light intensity value according to the first light intensity value and the target brightness value.
Referring to fig. 7, fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. The electronic device 500 may include Radio Frequency (RF) circuitry 501, memory 502 including one or more computer-readable storage media, input unit 503, display unit 504, sensor 504, audio circuitry 506, Wireless Fidelity (WiFi) module 507, processor 508 including one or more processing cores, and power supply 509. Those skilled in the art will appreciate that the electronic device configuration shown in fig. 7 does not constitute a limitation of the electronic device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the electronic device, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.
The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.
The display unit 504 may be used to display information input by or provided to a user and various graphical user interfaces of the electronic device, which may be made up of graphics, text, icons, video, and any combination thereof. The display unit 504 may include a display panel. Alternatively, the display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in FIG. 7 the touch-sensitive surface and the display panel are two separate components to implement input and output functions, in some embodiments the touch-sensitive surface may be integrated with the display panel to implement input and output functions.
The electronic device may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. In particular, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel according to the brightness of ambient light, and a proximity sensor that may turn off the display panel and/or the backlight when the electronic device is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured to the electronic device, detailed descriptions thereof are omitted.
The audio circuit 506 may provide an audio interface between the user and the electronic device through a speaker, microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal into a sound signal to output; on the other hand, the microphone converts the collected sound signal into an electrical signal, which is received by the audio circuit 506 and converted into audio data, which is then processed by the audio data output processor 508 and then sent to another electronic device via the rf circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuit 506 may also include an earbud jack to provide communication of a peripheral headset with the electronic device.
Wireless fidelity (WiFi) belongs to short-distance wireless transmission technology, and electronic equipment can help users to send and receive e-mails, browse webpages, access streaming media and the like through a wireless fidelity module 507, and provides wireless broadband internet access for users. Although fig. 7 shows the wireless fidelity module 507, it is understood that it does not belong to the essential constitution of the electronic device, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 508 is a control center of the electronic device, connects various parts of the entire electronic device using various interfaces and lines, and performs various functions of the electronic device and processes data by running or executing an application program stored in the memory 502 and calling data stored in the memory 502, thereby integrally monitoring the electronic device. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.
The electronic device also includes a power supply 509 (such as a battery) to power the various components. Preferably, the power source may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption management functions. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown in fig. 7, the electronic device may further include a camera, a bluetooth module, and the like, which are not described in detail herein.
In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.
It should be noted that, as one of ordinary skill in the art would understand, all or part of the steps in the various methods of the above embodiments may be implemented by relevant hardware instructed by a program, where the program may be stored in a computer-readable storage medium, such as a memory of a terminal, and executed by at least one processor in the terminal, and during the execution, the flow of the embodiments such as the information distribution method may be included. Among others, the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
In the above, the ambient light detection method, the ambient light detection apparatus, the storage medium, and the electronic device provided in the embodiments of the present application are described in detail, and each functional module may be integrated in one processing chip, or each module may exist alone physically, or two or more modules are integrated in one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The principle and the implementation of the present application are explained herein by applying specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (11)
1. An ambient light detection method applied to an electronic device, wherein the electronic device comprises a plurality of ambient light sensors arranged at different positions in a screen display area, the ambient light detection method comprising the steps of:
respectively acquiring the current brightness value of a screen area corresponding to each ambient light sensor to obtain a plurality of brightness values;
comparing the plurality of brightness values, and determining that the minimum brightness value is a target brightness value, wherein the ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
acquiring a first light intensity value currently detected by the target environment light sensor;
and calculating a target light intensity value according to the first light intensity value and the target brightness value.
2. The method for detecting ambient light according to claim 1, wherein the step of respectively obtaining a current brightness value of the screen region corresponding to each ambient light sensor to obtain a plurality of brightness values comprises:
acquiring the brightness value of each pixel point in a screen area corresponding to an ambient light sensor;
and calculating an average brightness value according to the brightness value of each pixel point, determining the average brightness value as the current brightness value of the screen area corresponding to the ambient light sensor, and acquiring the current brightness values of the screen areas corresponding to different ambient light sensors to obtain a plurality of brightness values.
3. The ambient light detection method of claim 1, wherein the step of calculating a target light intensity value from the first light intensity value and the target brightness value comprises:
and calculating the difference value between the first light intensity value and the target brightness value, and determining the difference value as a target light intensity value.
4. The ambient light detection method of claim 1, wherein after obtaining the first light intensity value currently detected by the target ambient light sensor, the method further comprises:
acquiring a second light intensity value currently detected by an ambient light sensor except the target ambient light sensor;
calculating a difference value between the second light intensity value and the first light intensity value, and judging whether the difference value meets a preset condition or not;
if yes, a step of calculating a target light intensity value according to the first light intensity value and the target brightness value is executed.
5. The ambient light detection method according to claim 4, wherein the step of determining whether the difference value satisfies a preset condition includes:
judging whether the difference value is smaller than a preset value or not;
and if so, determining that the difference value meets a preset condition.
6. An ambient light detection device applied to an electronic device, wherein the electronic device includes a plurality of ambient light sensors disposed at different positions of a screen display area, the ambient light detection device includes: the device comprises a first acquisition module, a determination module, a second acquisition module and a calculation module;
the first acquisition module is used for respectively acquiring the current brightness value of the screen area corresponding to each ambient light sensor to obtain a plurality of brightness values;
the determining module is configured to compare the plurality of brightness values, determine that a minimum brightness value is a target brightness value, and determine that an ambient light sensor corresponding to the target brightness value is a target ambient light sensor;
the second obtaining module is configured to obtain a first light intensity value currently detected by the target ambient light sensor;
and the calculating module is used for calculating a target light intensity value according to the first light intensity value and the target brightness value.
7. The ambient light detection device of claim 6, wherein the first acquisition module comprises: an acquisition submodule and a calculation submodule;
the obtaining submodule is used for obtaining the brightness value of each pixel point in the screen area corresponding to the ambient light sensor;
and the calculating submodule is used for calculating an average brightness value according to the brightness value of each pixel point, determining that the average brightness value is the current brightness value of the screen area corresponding to the ambient light sensor, and acquiring the current brightness values of the screen areas corresponding to different ambient light sensors to obtain a plurality of brightness values.
8. The ambient light detection device according to claim 6,
the calculating module is specifically configured to calculate a difference between the first light intensity value and the target brightness value, and determine that the difference is a target light intensity value.
9. The ambient light detection device of claim 6, wherein the device further comprises: a third acquisition module and a judgment module;
the third obtaining module is configured to obtain, after the second obtaining module obtains the first light intensity value currently detected by the target ambient light sensor, a second light intensity value currently detected by an ambient light sensor other than the target ambient light sensor;
the judging module is used for calculating a difference value between the second light intensity value and the first light intensity value and judging whether the difference value meets a preset condition or not;
the calculating module is specifically configured to calculate a target light intensity value according to the first light intensity value and the target brightness value when the determining module determines that the first light intensity value is positive.
10. A storage medium having a computer program stored thereon, the computer program, when being executed by a processor, performing the steps of the method according to any of the claims 1-5.
11. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1-5 are implemented when the processor executes the program.
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