CN110035176B - Brightness adjusting method of mobile terminal, mobile terminal and storage medium - Google Patents

Brightness adjusting method of mobile terminal, mobile terminal and storage medium Download PDF

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Publication number
CN110035176B
CN110035176B CN201910229497.7A CN201910229497A CN110035176B CN 110035176 B CN110035176 B CN 110035176B CN 201910229497 A CN201910229497 A CN 201910229497A CN 110035176 B CN110035176 B CN 110035176B
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brightness
mobile terminal
information
brightness information
environment
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CN110035176A (en
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李震
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Nubia Technology Co Ltd
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Nubia Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/72Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454User 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

Abstract

The invention discloses a brightness adjusting method of a mobile terminal, which comprises the following steps: detecting first ambient brightness information through a light sensor arranged on the front side of the mobile terminal; acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information; determining integral ambient brightness information according to the first ambient brightness information and the second ambient brightness information; and determining the expected screen brightness according to the overall ambient brightness information and the ambient brightness historical data, and adjusting the screen brightness to the expected screen brightness. In addition, the invention also discloses a mobile terminal and a storage medium. According to the embodiment disclosed by the invention, the mobile terminal determines the expected screen brightness of the mobile terminal according to the acquired environment brightness information in the surrounding 360-degree three-dimensional space, and the brightness of the mobile terminal is adjusted according to the expected screen brightness, so that the screen brightness of the mobile terminal can be adjusted to be proper brightness under the condition of a complex space, and the display effect of screen brightness adjustment is improved.

Description

Brightness adjusting method of mobile terminal, mobile terminal and storage medium
Technical Field
The invention relates to the technical field of mobile terminal control, in particular to a brightness adjusting method of a mobile terminal, the mobile terminal and a storage medium.
Background
With the rapid development of mobile terminals, the application range of mobile terminals has been expanded to the aspects of daily life of people, and people often use mobile terminals in various different occasions. In the process of using the mobile terminal, the automatic brightness adjusting function is one of the functions commonly used by people, the brightness value detected by the light sensor of the mobile terminal is only considered by the existing automatic brightness adjusting algorithm, the light sensor is generally installed on the front side of the mobile terminal, and the illumination intensity of the front side and the back side of the mobile terminal is different in the actual use process, so that the effect of the automatic brightness adjusting function in the actual use process is poor.
For example, in a common phenomenon in life, in a scene where the mobile terminal is used after the light is turned off at night, the brightness detected by a light sensor of the mobile terminal is high due to the light reflection effect of the face and other parts of a user, so that the brightness of the mobile phone is adjusted to be higher due to automatic brightness adjustment, a screen is dazzling, and the injury to eyes is large. For example again indoor comparatively dark daytime, the user uses under mobile terminal's the scene facing the window, the window part is comparatively bright, but indoor darker, and mobile terminal is back to the window, and the luminance value that leads to light sensor to detect is on the low side, and the final luminance of adjusting automatically can be on the dark side, leads to the screen to show the content comparatively dark, and display effect is poor, also does not benefit to user experience.
In summary, the automatic brightness adjustment function of the conventional mobile terminal cannot provide appropriate screen brightness in a complex scene, which results in poor effect of the automatic brightness adjustment function.
Disclosure of Invention
In view of the above, the present invention provides a brightness adjustment method for a mobile terminal, a mobile terminal and a storage medium to solve the above technical problems.
First, to solve the above problem, the present invention provides a brightness adjustment method for a mobile terminal, including:
detecting first ambient brightness information through a light sensor arranged on the front side of the mobile terminal;
acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information;
determining integral environment brightness information according to the first environment brightness information and the second environment brightness information;
and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness.
Optionally, the determining the expected screen brightness of the mobile terminal according to the overall ambient brightness information and the ambient brightness historical data includes:
setting corresponding brightness weight values for the overall environment brightness information and the environment history data respectively according to a rule that the corresponding weight values are smaller as the distance from the current time is longer, performing weighting operation on the overall environment brightness information, the environment history data and the set brightness weight values to obtain a first weighting operation result, and determining the first weighting operation result as the expected screen brightness of the mobile terminal.
Optionally, the ambient brightness historical data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space where the mobile terminal is located.
Optionally, after determining the overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information, the method includes:
and updating the overall ambient brightness information to the ambient brightness historical data.
Optionally, the detecting the first ambient brightness information by the light sensor installed on the front side of the mobile terminal includes:
detecting third environment brightness information through a light sensor within a first preset time period, and determining whether brightness change within the first preset time period exceeds a preset threshold value according to the third environment brightness information;
and if the brightness change in the preset time period exceeds a preset threshold value, detecting first environment brightness information through a light sensor arranged on the front side of the mobile terminal.
Optionally, the acquiring gray-scale value information by a rear camera installed on the back of the mobile terminal, and determining second ambient brightness information according to the gray-scale value information includes:
and acquiring an average gray value within a second preset time period through the rear camera, and taking the average gray value as second environment brightness information.
Optionally, the determining the overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information includes:
setting a first weight value for the first environment brightness information, setting a second weight value for the second environment brightness information, performing weighting calculation on the first environment brightness information, the first weight value, the second environment brightness information and the second weight value to obtain a second weighting operation result, and taking the second weighting operation result as the overall environment brightness information, wherein the sum of the first weight value and the second weight value is 1.
Optionally, the adjusting the screen brightness of the mobile terminal to the desired screen brightness includes:
determining a brightness gap between the screen desired brightness and a current brightness of the mobile terminal; dividing the brightness difference into at least two preset brightness steps, and adjusting the mobile terminal to the expected brightness of the screen according to the at least two preset brightness steps.
Further, to achieve the above object, the present invention also provides a mobile terminal, which includes a memory, at least one processor, and at least one program stored on the memory and executable by the at least one processor, wherein the at least one program, when executed by the at least one processor, implements the steps in the brightness adjustment method of the mobile terminal.
Further, to achieve the above object, the present invention also provides a storage medium storing at least one program executable by a computer, the at least one program causing the computer to perform the steps in the brightness adjusting method of the mobile terminal when executed by the computer.
Compared with the prior art, the brightness adjusting method of the mobile terminal provided by the invention has the advantages that the first environment brightness information is detected through the light ray sensor arranged on the front side of the mobile terminal; acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information; determining integral environment brightness information according to the first environment brightness information and the second environment brightness information; and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness. Therefore, the mobile terminal determines the expected screen brightness of the mobile terminal according to the acquired environment brightness information in the surrounding 360-degree three-dimensional space, and the brightness of the mobile terminal is adjusted according to the expected screen brightness, so that the screen brightness of the mobile terminal can be adjusted to be proper brightness under the condition of a complex space, and the display effect of screen brightness adjustment is improved.
Drawings
Fig. 1 is a schematic hardware configuration diagram of a mobile terminal implementing various embodiments of the present invention;
fig. 2 is a communication network system architecture diagram provided by an embodiment of the present invention;
fig. 3 is a flowchart illustrating a brightness adjustment method of a mobile terminal according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating another brightness adjustment method for a mobile terminal according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.
The terminal may be implemented in various forms. For example, the terminal described in the present invention may include mobile terminals such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a mobile terminal, a pedometer, and the like, and fixed terminals such as a Digital TV, a desktop computer, and the like.
The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.
Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: the mobile terminal includes components such as an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an a/V (audio/video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, where the number of the processors 110 is at least one. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile terminal in detail with reference to fig. 1:
the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can 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 GSM (Global System for mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).
WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.
The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.
The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a 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 fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. The display unit 106 may include a first display region and a second display region.
The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device 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 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.
Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.
The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to at least one element within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and the external device.
The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program 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 cellular phone, and the like. Further, the memory 109 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.
The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include at least one processing unit; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.
The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.
Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.
In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.
Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.
Specifically, the UE201 may be the mobile terminal 100 described above, and is not described herein again.
The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.
The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).
The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.
Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.
Based on the hardware structure of the mobile terminal 100 and the communication network system, various embodiments of the method of the present invention are provided.
Referring to fig. 3, fig. 3 is a flowchart illustrating steps of a brightness adjusting method of a mobile terminal according to an embodiment of the present invention, as shown in fig. 3, the method includes:
and S301, detecting first ambient brightness information through a light sensor arranged on the front surface of the mobile terminal.
In this embodiment, the front surface of the mobile terminal may be understood as a surface on which the display screen is installed, and the light sensor installed on the front surface of the mobile terminal may detect ambient brightness information within a side range corresponding to the front surface of the mobile terminal. The brightness information detected by the light sensor at the current moment can be used as the first environment brightness information, so that the first environment brightness information can be quickly obtained. The average value operation may be performed on the ambient brightness information over a period of time, and the average brightness information over a period of time may be used as the first ambient brightness information, so that comparatively average brightness information may be obtained as the first ambient brightness information.
Step S302, obtaining gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information.
In this embodiment, the back of the mobile terminal may be understood as an opposite surface to the surface on which the display screen is installed, and the rear camera installed on the back of the mobile terminal may acquire gray scale information by capturing a gray scale image, and may determine the ambient brightness information within the side range corresponding to the back of the mobile terminal according to the gray scale information. Specifically, in this embodiment, the gray value acquired by the post-camera at the current time may be used as the second ambient brightness information, so that the second ambient brightness information may be obtained quickly.
Step 303, determining the overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information.
In this embodiment, the first ambient brightness information represents ambient brightness information within a side range corresponding to the front side of the mobile terminal, and the second ambient brightness information represents ambient brightness information within a side range corresponding to the back side of the mobile terminal. For example, the average value of the first ambient brightness information and the second ambient brightness information may be taken as the overall ambient brightness information.
Step 304, determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness.
In this embodiment, the ambient brightness history data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space in which the mobile terminal is located. For example, if the ambient brightness history data includes 3 data, the desired screen brightness is determined according to the overall ambient brightness information and the 3 data of the ambient brightness history data, for example, an average value of the overall ambient brightness information and the 3 data of the ambient brightness history data may be used as the desired screen brightness.
In this embodiment, the screen brightness may be adjusted to the desired brightness of the screen by one-time brightness adjustment. The screen brightness may also be adjusted to the desired brightness of the screen through multiple brightness adjustments, which is not limited herein.
The brightness adjusting method of the mobile terminal provided by the invention comprises the steps that first environment brightness information is detected through a light sensor arranged on the front surface of the mobile terminal; acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information; determining integral environment brightness information according to the first environment brightness information and the second environment brightness information; and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness. Therefore, the mobile terminal determines the expected screen brightness of the mobile terminal according to the acquired environment brightness information in the surrounding 360-degree three-dimensional space, and the brightness of the mobile terminal is adjusted according to the expected screen brightness, so that the screen brightness of the mobile terminal can be adjusted to be proper brightness under the condition of a complex space, and the display effect of screen brightness adjustment is improved.
Referring to fig. 4, fig. 4 is a flowchart illustrating steps of another brightness adjusting method for a mobile terminal according to an embodiment of the present invention, as shown in fig. 4, the method includes:
step S401, detecting first ambient brightness information through a light sensor arranged on the front face of the mobile terminal.
In this embodiment, the front surface of the mobile terminal may be understood as a surface on which the display screen is installed, and the light sensor installed on the front surface of the mobile terminal may detect ambient brightness information within a side range corresponding to the front surface of the mobile terminal. The brightness information detected by the light sensor at the current moment can be used as the first environment brightness information, so that the first environment brightness information can be quickly obtained. The average value operation may be performed on the ambient brightness information over a period of time, and the average brightness information over a period of time may be used as the first ambient brightness information, so that comparatively average brightness information may be obtained as the first ambient brightness information.
Optionally, the step 401 may further include the following steps:
detecting third environment brightness information through a light sensor within a first preset time period, and determining whether brightness change within the first preset time period exceeds a preset threshold value according to the third environment brightness information;
and if the brightness change in the preset time period exceeds a preset threshold value, detecting first environment brightness information through a light sensor arranged on the front side of the mobile terminal.
In this embodiment, the preset threshold may be a default set value of the system, or may be a user-defined value. And starting the step of detecting the first environment brightness information only when the brightness change exceeds a preset threshold value, and starting the process of adjusting the screen brightness. And if the brightness change does not exceed the preset threshold value, the step of detecting the first environment brightness information is not carried out, and the process of adjusting the screen brightness is not started. The method can effectively reduce the times of misadjusting the screen brightness and improve the user experience.
And S402, acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information.
In this embodiment, the back of the mobile terminal may be understood as an opposite surface to the surface on which the display screen is installed, and the rear camera installed on the back of the mobile terminal may acquire gray scale information by capturing a gray scale image, and may determine the ambient brightness information within the side range corresponding to the back of the mobile terminal according to the gray scale information. Specifically, in this embodiment, the gray value acquired by the post-camera at the current time may be used as the second ambient brightness information, so that the second ambient brightness information may be obtained quickly.
Optionally, the step S402 may further include the following steps:
and acquiring an average gray value within a second preset time period through the rear camera, and taking the average gray value as second environment brightness information.
Specifically, a plurality of gray level images may be continuously collected within a period of time, a plurality of gray level values may be obtained according to the plurality of gray level images, an average value operation may be performed on the plurality of gray level values, and the average gray level value within the period of time may be used as the second ambient brightness information, so that a relatively average gray level value may be obtained as the second ambient brightness information.
Step S403, determining overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information.
In this embodiment, the first ambient brightness information represents ambient brightness information within a side range corresponding to the front side of the mobile terminal, and the second ambient brightness information represents ambient brightness information within a side range corresponding to the back side of the mobile terminal. For example, the average value of the first ambient brightness information and the second ambient brightness information may be taken as the overall ambient brightness information.
Optionally, the step S403 may include the following steps:
setting a first weight value for the first environment brightness information, setting a second weight value for the second environment brightness information, performing weighting calculation on the first environment brightness information, the first weight value, the second environment brightness information and the second weight value to obtain a second weighting operation result, and taking the second weighting operation result as the overall environment brightness information, wherein the sum of the first weight value and the second weight value is 1.
In this embodiment, the size of the first luminance information and the size of the second luminance information may be determined, and the first weight value and the second weight value are determined according to the determined size relationship, so that a second weighting operation result obtained by performing weighting calculation according to the first ambient luminance information, the first weight value, the second ambient luminance information, and the second weight value matches with the current scene.
For example, when the mobile terminal is played after turning off the light at night, because the face and the like reflect light, the first environment brightness information detected by the mobile terminal is higher, the second environment brightness information is lower, and the first weight value and the second weight value are determined according to the determined size relationship, so that the second weighting operation result obtained by weighting calculation according to the first environment brightness information, the first weight value, the second environment brightness information and the second weight value is matched with the current scene, the expected brightness of the darker screen suitable for the current scene is determined conveniently, and the eyes of the user are protected.
For example, when the mobile terminal is played facing a window in the daytime, the window is partially brighter but is darker indoors, and the mobile terminal faces away from the window, so that first brightness information detected by the light sensor is lower, second brightness information acquired by the rear camera is higher, and a first weight value and a second weight value are determined according to the determined size relationship, so that a second weighting operation result obtained by weighting calculation according to the first environment brightness information, the first weight value, the second environment brightness information and the second weight value is matched with the current scene, the brighter expected screen brightness suitable for the current scene is determined conveniently, and the screen display effect is improved.
Therefore, the calculation of the overall ambient brightness information can be performed by adjusting the ambient brightness information on the front side and the back side of the mobile terminal through the weight values, and the ambient brightness evaluation on different scenes can be performed conveniently and effectively.
Step S404, setting corresponding brightness weight values for the overall environment brightness information and the environment historical data respectively according to a rule that the corresponding weight values are smaller as the distance from the current time is longer, performing weighting operation on the overall environment brightness information, the environment historical data and the set brightness weight values to obtain a first weighting operation result, and determining the first weighting operation result as the expected screen brightness of the mobile terminal.
In this embodiment, the ambient brightness history data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space in which the mobile terminal is located. For example, if the ambient brightness history data includes 3 data, the desired screen brightness is determined according to the overall ambient brightness information and the 3 data of the ambient brightness history data, for example, an average value of the overall ambient brightness information and the 3 data of the ambient brightness history data may be used as the desired screen brightness.
In this embodiment, the brightness weight value may be a default setting value of the system, or may be a setting value for the user. For example, in chronological order, the environment history data includes N1, N2, N3, and the overall ambient brightness information L1 sets W1, W2, W3, and W4 for N1, N2, N3, and L1, respectively, where W1< W2< W3< W4, and the first weighted operation result is calculated according to the formula P — N1 ═ W1+ N2 × W2+ N3 × W3+ L1 × W4, where P represents the first weighted operation result. And taking the value of P as the expected brightness of the screen of the mobile terminal.
Therefore, the change trend of the ambient brightness in a period of time can be fully considered, the appropriate expected screen brightness in the current scene can be determined, and the accuracy of the expected screen brightness can be improved.
Step S405, adjusting the screen brightness of the mobile terminal to the expected screen brightness.
In this embodiment, the screen brightness may be adjusted to the desired brightness of the screen by one-time brightness adjustment.
Optionally, the step S405 may further include the following steps:
determining a brightness gap between the screen desired brightness and a current brightness of the mobile terminal; dividing the brightness difference into at least two preset brightness steps, and adjusting the mobile terminal to the expected brightness of the screen according to the at least two preset brightness steps.
Like this, can cushion through at least two luminance ladders of predetermineeing, reduce directly to the screen and transfer the injury of bright or dark state to user's eyes, improve the screen display effect.
After the step S405, the following steps may be further included:
and updating the overall ambient brightness information to the ambient brightness historical data.
Therefore, the acquired overall ambient brightness information can be stored in the ambient brightness data for subsequent estimation of the expected brightness of the screen, and the effective utilization rate of the data is improved.
The brightness adjusting method of the mobile terminal provided by the invention comprises the steps that first environment brightness information is detected through a light sensor arranged on the front surface of the mobile terminal; acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information; determining integral environment brightness information according to the first environment brightness information and the second environment brightness information; and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness. Therefore, the mobile terminal determines the expected screen brightness of the mobile terminal according to the acquired environment brightness information in the surrounding 360-degree three-dimensional space, and the brightness of the mobile terminal is adjusted according to the expected screen brightness, so that the screen brightness of the mobile terminal can be adjusted to be proper brightness under the condition of a complex space, and the display effect of screen brightness adjustment is improved.
Those skilled in the art will appreciate that all or part of the steps of the method implementing the above-described embodiments may be implemented by hardware associated with at least one program instruction, where the at least one program may be stored in the memory 109 of the mobile terminal 100 shown in fig. 1 and can be executed by the processor 110, and the at least one program when executed by the processor 110 implements the following steps:
detecting first ambient brightness information through a light sensor arranged on the front side of the mobile terminal;
acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information;
determining integral environment brightness information according to the first environment brightness information and the second environment brightness information;
and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness.
Optionally, the processor 110 executes the determining of the expected screen brightness of the mobile terminal according to the overall ambient brightness information and the ambient brightness historical data, including:
according to the rule that the longer the current time is, the smaller the corresponding weight value is, respectively aiming at the whole environment
Setting a corresponding brightness weight value for the brightness information and the environment historical data, performing weighting operation on the overall environment brightness information, the environment historical data and the set brightness weight value to obtain a first weighting operation result, and determining the first weighting operation result as the expected screen brightness of the mobile terminal.
Optionally, the ambient brightness historical data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space where the mobile terminal is located.
Optionally, the processor 11 is further configured to update the overall ambient brightness information to the ambient brightness history data.
Optionally, the processor 11 executes the detecting of the first ambient brightness information by a light sensor installed on the front surface of the mobile terminal, including:
detecting third environment brightness information through a light sensor within a first preset time period, and determining whether brightness change within the first preset time period exceeds a preset threshold value according to the third environment brightness information;
and if the brightness change in the preset time period exceeds a preset threshold value, detecting first environment brightness information through a light sensor arranged on the front side of the mobile terminal.
Optionally, the processor 110 executes the acquiring of the gray-scale value information by the rear camera installed on the back of the mobile terminal, and determines the second ambient brightness information according to the gray-scale value information, including:
and acquiring an average gray value within a second preset time period through the rear camera, and taking the average gray value as second environment brightness information.
Optionally, the determining, by the processor 110, overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information includes:
setting a first weight value for the first environment brightness information, setting a second weight value for the second environment brightness information, performing weighting calculation on the first environment brightness information, the first weight value, the second environment brightness information and the second weight value to obtain a second weighting operation result, and taking the second weighting operation result as the overall environment brightness information, wherein the sum of the first weight value and the second weight value is 1.
Optionally, the adjusting, by the processor 110, the screen brightness of the mobile terminal to the desired screen brightness includes:
determining a brightness gap between the screen desired brightness and a current brightness of the mobile terminal; dividing the brightness difference into at least two preset brightness steps, and adjusting the mobile terminal to the expected brightness of the screen according to the at least two preset brightness steps.
According to the mobile terminal 100 provided by the embodiment of the invention, the expected screen brightness of the mobile terminal is determined through the acquired environment brightness information in the surrounding 360-degree three-dimensional space, and the brightness of the mobile terminal is adjusted according to the expected screen brightness, so that the screen brightness of the mobile terminal can be adjusted to be proper under the condition of a complex space, and the display effect of adjusting the screen brightness is improved.
It will be understood by those skilled in the art that all or part of the steps of the method for implementing the above embodiments may be implemented by hardware associated with at least one program instruction, and the at least one program may be stored in a storage medium, and when executed, the at least one program includes the following steps:
detecting first ambient brightness information through a light sensor arranged on the front side of the mobile terminal;
acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information;
determining integral environment brightness information according to the first environment brightness information and the second environment brightness information;
and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness.
Optionally, when the at least one program is executed, the following steps may be further implemented:
setting corresponding brightness weight values for the overall environment brightness information and the environment history data respectively according to a rule that the corresponding weight values are smaller as the distance from the current time is longer, performing weighting operation on the overall environment brightness information, the environment history data and the set brightness weight values to obtain a first weighting operation result, and determining the first weighting operation result as the expected screen brightness of the mobile terminal.
Optionally, the ambient brightness historical data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space where the mobile terminal is located.
Optionally, when the at least one program is executed, the following steps may be further implemented:
and updating the overall ambient brightness information to the ambient brightness historical data.
Optionally, when the at least one program is executed, the following steps may be further implemented:
detecting third environment brightness information through a light sensor within a first preset time period, and determining whether brightness change within the first preset time period exceeds a preset threshold value according to the third environment brightness information;
and if the brightness change in the preset time period exceeds a preset threshold value, detecting first environment brightness information through a light sensor arranged on the front side of the mobile terminal.
Optionally, when the at least one program is executed, the following steps may be further implemented:
and acquiring an average gray value within a second preset time period through the rear camera, and taking the average gray value as second environment brightness information.
Optionally, when the at least one program is executed, the following steps may be further implemented:
setting a first weight value for the first environment brightness information, setting a second weight value for the second environment brightness information, performing weighting calculation on the first environment brightness information, the first weight value, the second environment brightness information and the second weight value to obtain a second weighting operation result, and taking the second weighting operation result as the overall environment brightness information, wherein the sum of the first weight value and the second weight value is 1.
Optionally, when the at least one program is executed, the following steps may be further implemented:
determining a brightness gap between the screen desired brightness and a current brightness of the mobile terminal; dividing the brightness difference into at least two preset brightness steps, and adjusting the mobile terminal to the expected brightness of the screen according to the at least two preset brightness steps.
According to the storage medium provided by the embodiment of the invention, the expected screen brightness of the mobile terminal is determined through the acquired environment brightness information in the surrounding 360-degree three-dimensional space, the brightness of the mobile terminal is adjusted according to the expected screen brightness, the screen brightness of the mobile terminal can be adjusted to be proper under the condition of a complex space, and the display effect of screen brightness adjustment is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (9)

1. A brightness adjusting method of a mobile terminal is applied to the mobile terminal, and is characterized by comprising the following steps:
detecting first ambient brightness information through a light sensor arranged on the front side of the mobile terminal;
acquiring gray value information through a rear camera arranged on the back of the mobile terminal, and determining second environment brightness information according to the gray value information;
determining overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information, including: setting a first weight value for the first environment brightness information, setting a second weight value for the second environment brightness information, performing weighting calculation on the first environment brightness information, the first weight value, the second environment brightness information and the second weight value to obtain a second weighting operation result, and taking the second weighting operation result as the overall environment brightness information, wherein the sum of the first weight value and the second weight value is 1;
and determining the expected screen brightness of the mobile terminal according to the overall environment brightness information and the environment brightness historical data, and adjusting the screen brightness of the mobile terminal to the expected screen brightness.
2. The method for adjusting brightness of a mobile terminal according to claim 1, wherein said determining the desired brightness of the screen of the mobile terminal according to the overall ambient brightness information and the ambient brightness history data comprises:
setting corresponding brightness weight values for the overall environment brightness information and the environment history data respectively according to a rule that the corresponding weight values are smaller as the distance from the current time is longer, performing weighting operation on the overall environment brightness information, the environment history data and the set brightness weight values to obtain a first weighting operation result, and determining the first weighting operation result as the expected screen brightness of the mobile terminal.
3. The method for adjusting brightness of a mobile terminal according to claim 1, wherein the ambient brightness history data includes N data, N is greater than or equal to 2, and each of the N data is the historical ambient brightness of the 360-degree three-dimensional space in which the mobile terminal is located.
4. The method for adjusting brightness of a mobile terminal according to claim 3, wherein after determining the overall ambient brightness information according to the first ambient brightness information and the second ambient brightness information, the method comprises:
and updating the overall ambient brightness information to the ambient brightness historical data.
5. The method for adjusting brightness of a mobile terminal according to any one of claims 1-4, wherein said detecting first ambient brightness information by a light sensor installed on a front surface of said mobile terminal comprises:
detecting third environment brightness information through a light sensor within a first preset time period, and determining whether brightness change within the first preset time period exceeds a preset threshold value according to the third environment brightness information;
and if the brightness change in the preset time period exceeds a preset threshold value, detecting first environment brightness information through a light sensor arranged on the front side of the mobile terminal.
6. The method for adjusting brightness of a mobile terminal according to any one of claims 1-4, wherein said obtaining gray scale value information by a rear camera mounted on a back surface of the mobile terminal and determining second ambient brightness information according to the gray scale value information comprises:
and acquiring an average gray value within a second preset time period through the rear camera, and taking the average gray value as second environment brightness information.
7. The method for adjusting brightness of a mobile terminal according to any one of claims 1 to 4, wherein said adjusting the screen brightness of the mobile terminal to the desired brightness of the screen comprises:
determining a brightness gap between the screen desired brightness and a current brightness of the mobile terminal; dividing the brightness difference into at least two preset brightness steps, and adjusting the mobile terminal to the expected brightness of the screen according to the at least two preset brightness steps.
8. A mobile terminal, characterized in that it comprises a memory, at least one processor and at least one program stored on said memory and executable on said at least one processor, said at least one program, when executed by said at least one processor, implementing the steps of the method of any of the preceding claims 1 to 7.
9. A storage medium storing at least one program executable by a computer, the at least one program, when executed by the computer, causing the computer to perform the steps of the method of any one of claims 1 to 7.
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