WO2022001502A1

WO2022001502A1 - Screen over-vibration protection method, electronic device and storage medium

Info

Publication number: WO2022001502A1
Application number: PCT/CN2021/095757
Authority: WO
Inventors: 张凤; 王蔚; 刘波
Original assignee: 中兴通讯股份有限公司
Priority date: 2020-06-30
Filing date: 2021-05-25
Publication date: 2022-01-06
Also published as: CN113946308A

Abstract

A screen over-vibration protection method, an electronic device and a storage medium, which belong to the technical field of electronic devices. The method comprises: acquiring a preset screen vibration function, and acquiring an audio signal to be played (S101); determining, according to the screen vibration function, a plurality of amplitudes generated by a screen when same is playing the audio signal (S102); and when it is determined that there is a target amplitude among the plurality of amplitudes that is greater than a preset amplitude, performing amplitude modulation on the audio signal according to the target amplitude, so that the amplitude generated by the screen when same is playing the audio signal that has been subjected to amplitude modulation is less than or equal to the preset amplitude (S103).

Description

Screen over-vibration protection method, electronic device and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on the Chinese patent application with the application number of 202010615338.3 and the filing date of June 30, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is incorporated herein by reference.

technical field

The present invention relates to the technical field of electronic devices, and in particular, to a screen over-vibration protection method, an electronic device and a storage medium.

Background technique

With the development of full-screen technology, more and more electronic devices begin to apply screen sound technology. The principle of the screen sound is realized by the vibration of the screen, and the long-term over-vibration of the screen can easily cause serious damage to the screen. In order to prevent over-vibration of the screen, the vibration of the screen is mainly attenuated by improving the assembly and reducing the loudness. For example, place the exciter away from the screen, or reduce the overall loudness of the output audio. These over-vibration protection methods cannot accurately regulate the output of audio signals, have poor protection effects on screen over-vibration, and have low reliability.

SUMMARY OF THE INVENTION

The main purpose of the embodiments of the present invention is to provide a screen over-vibration protection method, an electronic device and a storage medium, which aim to improve the reliability of screen over-vibration protection.

In a first aspect, an embodiment of the present invention provides a screen over-vibration protection method, including: acquiring a preset screen vibration function, and acquiring an audio signal to be played, where the screen vibration function is used to describe the amplitude of the screen and the difference between the audio signal. The relationship between the frequencies; according to the screen vibration function, determine the multiple amplitudes generated when the screen plays the audio signal; when it is determined that there is a target amplitude greater than the preset amplitude in the multiple amplitudes, according to the target amplitude The amplitude modulates the audio signal, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is smaller than or equal to the preset amplitude.

In a second aspect, an embodiment of the present invention further provides an electronic device, the electronic device includes a processor, a memory, a computer program stored on the memory and executable by the processor, and a computer program for implementing the processor A data bus that communicates with the connection between the memory, wherein when the computer program is executed by the processor, the steps of any one of the screen over-vibration protection methods provided by the embodiments of the present invention are implemented.

In a third aspect, an embodiment of the present invention further provides a storage medium for computer-readable storage, wherein the storage medium stores one or more programs, and the one or more programs can be stored by one or more programs. Each processor executes the steps to implement any one of the methods for screen over-vibration protection provided by the embodiments of the present invention.

Description of drawings

FIG. 1 is a schematic structural block diagram of an electronic device according to an embodiment of the present invention;

2 is a schematic flowchart of a screen over-vibration protection method according to an embodiment of the present invention;

Fig. 3 is the sub-step flow schematic diagram of the screen over-vibration protection method in Fig. 2;

4a is a schematic structural diagram of a display device implementing an electronic device provided by an embodiment of the present invention;

FIG. 4b is another schematic structural diagram of a display device implementing an electronic device provided by an embodiment of the present invention;

FIG. 5 is a schematic structural block diagram of another electronic device provided by an embodiment of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The flowcharts shown in the figures are for illustration only, and do not necessarily include all contents and operations/steps, nor do they have to be performed in the order described. For example, some operations/steps can also be decomposed, combined or partially combined, so the actual execution order may be changed according to the actual situation.

It should be understood that the terminology used in this specification of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural unless the context clearly dictates otherwise.

Please refer to FIG. 1. FIG. 1 is a schematic structural block diagram of an electronic device according to an embodiment of the present invention. The electronic device in the embodiment of the present application will be described below with reference to FIG. 1 .

As shown in FIG. 1 , the electronic device 100 includes a screen 10 , a vibration sensor 20 , a processor 30 , an audio codec 40 , an audio power amplifier 50 and an exciter 60 .

The screen 10 may be a display screen of the electronic device 100 , and at the same time, the screen 10 may be used as a generating device of the electronic device 100 and controlled by the exciter 60 . For example, during a call, the electronic device 100 drives the screen 10 to vibrate and emit sound through the exciter 60, thereby outputting the call audio.

The vibration sensor 20 is configured to collect vibration information of the screen 10 , that is, convert the monitored vibration of the screen 10 into electrical signals to obtain vibration information, and send the collected vibration information to the processor 30 . The vibration sensor 20 can be installed below the screen 10 to better monitor the vibration of the screen 10 .

The processor 30 is configured to process the received vibration signal of the screen 10 to establish a screen vibration function. Alternatively, the processor 30 is configured to determine whether the screen 10 will over-vibrate the screen 10 by playing the audio signal according to the screen vibration function and the audio signal to be played. The audio codec 40 processes the audio signal to be played. So that the screen 10 plays the processed audio signal without over-vibrating the screen 10 .

It will be appreciated that the audio codec 40 is arranged to enable processing of audio signals. For example, the frequency or amplitude of the audio signal to be played in multiple time periods is adjusted sequentially by the audio codec 40 , or the amplitude of the corresponding frequency of the audio signal to be played is adjusted by the audio codec 40 . The audio power amplifier 50 is arranged to amplify the audio signal so as to bring the audio signal to a power that drives the exciter 60 to operate.

The exciter 60 is a driving unit that drives the screen 10 to vibrate. The exciter 60 may be an integrated exciter, piezoelectric ceramic, two-piece magnetic suspension exciter, etc., which is not specifically limited in this embodiment.

It should be noted that the processor 30 may be a central processing unit (Central Processing Unit, CPU), and the processor 30 may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (application specific integrated circuit, ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

In the electronic device 100, the vibration information of the screen 10 is collected by the vibration sensor 20, and the processor 30 establishes the screen vibration function of the screen 10 according to the vibration information of the screen 10 collected by the vibration sensor 20, wherein, the screen vibration function uses to describe the relationship between the amplitude of the screen 10 and the frequency of the audio signal. When the processor 30 detects the playback request of the audio signal to be played, it acquires the screen vibration function and the audio signal to be played. The screen vibration function may be preset or established in real time; the processor 30 obtains the screen vibration function according to the The screen vibration function determines a plurality of amplitudes generated when the screen 10 plays the audio signal, and when it is determined that there is a target amplitude greater than the preset amplitude in the plurality of amplitudes, the audio codec 40 is controlled to perform an amplitude measurement on the audio signal according to the target amplitude. modulation, so that the amplitude of the audio signal after the amplitude modulation is played on the screen 10 is less than or equal to the preset amplitude. Then, through the audio power amplifier 50 and the exciter 60, the screen 10 is made to play the audio signal after amplitude modulation, which greatly avoids the over-vibration of the screen 10 and improves the over-vibration protection effect of the screen 10. The screen vibration function can be Timely adjustment enhances the reliability of screen over-vibration protection.

Embodiments of the present invention provide a screen over-vibration protection method, an electronic device, and a storage medium. Wherein, the screen over-vibration protection method can be applied to electronic devices, and the electronic devices can be terminal devices such as mobile phones, tablet computers, notebook computers, personal digital assistants, and smart wearable devices, and can also be other devices that can apply screen sound technology. equipment.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and features in the embodiments may be combined with each other without conflict.

Please refer to FIG. 2 , which is a schematic flowchart of a method for protecting a screen from over-vibration according to an embodiment of the present invention.

As shown in FIG. 2, the screen over-vibration protection method includes steps S101 to S103.

Step S101 , acquiring a preset screen vibration function, and acquiring an audio signal to be played.

The screen vibration function is used to describe the relationship between the amplitude of the screen and the frequency of the audio signal, and the screen vibration function can be preset. That is, when the processor receives the playback request of the audio signal to be played, it can directly call the preset screen vibration function.

In one embodiment, when monitoring that the electronic equipment is turned on, the screen is controlled to play a frequency sweep signal, and the relationship between the amplitude of the screen and the frequency of the frequency sweep signal is established through the frequency sweep signal to obtain a screen vibration function, and the The screen shake function is stored in memory. When a playback request of the audio signal to be played is detected, the screen vibration function is obtained from the memory. In some embodiments, the electronic device controls the screen to play a frequency sweep signal every preset time interval to establish a screen vibration function, and the preset time can be flexibly set by the user.

In one embodiment, the screen vibration function is obtained by performing a vibration test on the screen of the electronic device by the manufacturer of the electronic device, and the screen vibration function obtained by the test is stored in the cloud or in the memory of the electronic device by the manufacturer of the electronic device, It is convenient for the electronic device to obtain directly.

In one embodiment, the electronic device is provided with a control option of the screen vibration function, and the user can choose to enable, calibrate or disable the related function of the screen vibration function by manipulating the control option. For example, the user controls the electronic device to establish the screen vibration function by triggering the control option of the screen vibration function, and stores the established screen vibration function, thereby enabling the screen vibration function to control the audio signal to be played and prevent the screen from over-vibrating. .

In an example, the process of establishing the screen vibration function includes: when the processor detects the establishment request of the screen vibration function triggered by the user, controls the screen to play a frequency sweep signal, and collects the vibration information of the screen by the vibration sensor; The vibration information of the screen collected by the vibration sensor is used to establish the relationship between the amplitude of the screen and the frequency of the sweep signal, and the screen vibration function is obtained.

In one embodiment, as shown in FIG. 3 , before the step of acquiring the preset screen vibration function, it further includes: sub-steps S1011 to S1013 .

Sub-step S1011 , playing the preset audio signal through the screen, and collecting vibration information generated when the screen plays the preset audio signal through the vibration sensor.

Among them, the preset audio signal is a test signal, which is used to test the vibration information of the screen. The test signal may include a process in which the frequency in a frequency band changes continuously from high to low (or from low to high), so that the test screen plays a frequency in a frequency band. The multiple amplitudes produced by an audio signal whose frequency varies continuously. For example, the preset audio signal is a frequency sweep signal, which is pre-stored in the memory. When the processor receives the preset audio signal playing instruction, it retrieves the frequency sweep signal from the memory and controls the screen to play the frequency sweep signal. At this time, the vibration sensor installed in the electronic device can collect the vibration information generated when the screen plays the frequency sweep signal, and send the collected vibration information generated when the screen plays the frequency sweep signal to the processor for The processor performs subsequent operations based on the vibration information.

In one embodiment, the installation position of the vibration sensor is determined according to the maximum amplitude area of the screen. It should be noted that due to the material, thickness, area, shape and other characteristics of different screens and the installation position of the exciter may be different, the maximum amplitude area of each screen may also be different, that is, the maximum amplitude area of each screen. It needs to be determined according to the actual situation. But usually, the maximum amplitude area of the screen is determined by the structural design of the electronic device. The maximum position of the screen vibration can be obtained through vibration simulation, and the area within the preset range of the maximum position is the maximum amplitude area. In an example, the installation position of the vibration sensor may be located below the inner side of the maximum amplitude area of the screen, so that the vibration information generated by the screen can be sensed more quickly and clearly.

In an example, as shown in FIG. 4a, the display device of the electronic device includes a screen 10 and a middle frame 70, and the maximum amplitude area 11 of the screen 10 is located within a first preset range of the exciter assembly position. The vibration sensor 20 is fixed on the middle frame 70, and is located at a position below the inner side of the maximum amplitude area 11. The exciter 60 is assembled and fixed on the inner side of the screen 10, and the screen 10 is driven by the exciter 60 to vibrate and sound, so that the screen 10 can play audio signals For example, a frequency sweep signal, and the vibration sensor 20 located at the inner position below the maximum amplitude area 11 can clearly monitor the vibration information generated by the screen 10 playing the frequency sweep signal.

In another example, as shown in FIG. 4 b , the exciter 60 is assembled and fixed on the middle frame 70 . At this time, the maximum amplitude area 11 of the screen 10 is within the second preset range of the screen 10 , and the maximum amplitude area 11 may be It is obtained through vibration simulation that the vibration sensor 20 is fixed on the middle frame 70 and is located in the inner and lower position of the maximum amplitude area 11 , and the vibration information generated when the screen 10 plays the preset audio signal can be more clearly collected.

Sub-step S1012 , performing frequency domain conversion on the vibration information to obtain a frequency domain vibration signal of the vibration information.

It should be noted that the vibration information generated when the vibration sensor collects and sends the preset audio signal to the screen of the processor is a time-domain vibration signal, and the time-domain vibration signal is subjected to frequency-domain conversion to obtain a corresponding frequency-domain vibration signal. . For example, the time-domain vibration signal Se(t) is converted into a frequency-domain vibration signal Se(f).

For example, the time-domain vibration signal of the vibration information is converted into a corresponding frequency-domain vibration signal through Fourier series or Fourier transform, so as to obtain the corresponding amplitudes and phases of the vibration information at different frequencies. Alternatively, an instrument such as an oscilloscope can directly convert a time-domain vibration signal into corresponding amplitudes and phases at different frequencies, thereby obtaining a frequency-domain vibration signal of vibration information. The embodiments of the present invention are not specifically limited herein.

Sub-step S1013 , establishing a screen vibration function according to the preset audio signal and the frequency domain vibration signal.

For example, the screen plays a frequency sweep signal with a rated voltage of Ve, and the frequency domain vibration signal includes the corresponding amplitudes at different frequencies of the vibration information. , the screen vibration function of the screen can be established.

In one embodiment, establishing a screen vibration function according to the preset audio signal and the frequency-domain vibration signal includes: obtaining a rated voltage value of the preset audio signal; and determining the screen to play the preset audio according to the frequency-domain vibration signal and the rated voltage value. The relationship between the amplitude of the unit voltage generated when the signal is generated and the frequency of the preset audio signal, the screen vibration function is obtained. For example, the rated voltage value of the preset audio signal is Ve, and the frequency domain vibration signal is Se(f). Ve can obtain the relationship between the amplitude of the unit voltage generated when the screen plays the preset audio signal and the frequency of the preset audio signal, and obtain the screen vibration function S0(f).

Step S102, according to the screen vibration function, determine multiple amplitudes generated when the screen plays the audio signal.

Among them, the screen vibration function includes the relationship between the amplitude of the screen and the frequency of the audio signal. The vibration sensor can collect the vibration information generated when the screen plays the audio signal. According to the vibration information and the screen vibration function, it can be determined that the screen plays the audio signal. The multiple amplitudes generated by the signal.

In one embodiment, the audio signal to be played is converted in the frequency domain to obtain the target audio signal; the product of the screen vibration function and the target audio signal is obtained to obtain multiple amplitudes generated when the screen plays the audio signal. It should be noted that the to-be-played audio signal acquired by the processor is a time-domain signal, and the time-domain signal needs to be converted in the frequency domain to obtain the frequency-domain signal of the to-be-played audio signal to obtain the target audio signal. Multiply the target audio signal with the screen vibration function to obtain the amplitudes corresponding to multiple frequencies of the target audio signal, and then obtain the multiple amplitudes generated when the audio signal is played on the screen. For example, multiple amplitudes of the screen S(f)=V(f)*S0(f), where V(f) is the target audio signal, and S0(f) is the screen vibration function.

Step S103: When it is determined that there is a target amplitude greater than the preset amplitude among the multiple amplitudes, perform amplitude modulation on the audio signal according to the target amplitude, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is less than or equal to the preset amplitude.

After determining the multiple amplitudes generated when the screen plays the audio signal, determine whether there is a target amplitude greater than the preset amplitude among the multiple amplitudes; when it is determined that there is no target amplitude greater than the preset amplitude among the multiple amplitudes, output normally The audio signal to be played; when it is determined that there is a target amplitude greater than the preset amplitude among the multiple amplitudes, the audio signal is amplitude-modulated according to the target amplitude, so that the amplitude of the audio signal after the amplitude-modulated audio signal is played on the screen is less than or equal to the preset amplitude. Set the amplitude. It should be noted that the preset amplitude can be set according to the actual situation, for example, according to the material, thickness, area, shape, strength, working period, etc. of the screen, which is not specifically limited in the embodiment of the present invention.

In one embodiment, according to the target amplitude and the preset amplitude, determine the target amplitude for amplitude modulation of the audio signal; according to the target amplitude, modulate the amplitude of the corresponding frequency point in the audio signal, so that the screen plays the amplitude modulated The audio signal produces an amplitude less than or equal to the preset amplitude. It should be noted that if the target amplitude is larger than the preset amplitude, it is easy to cause damage to the screen. The amplitude of the frequency point corresponding to the target amplitude in the audio signal is modulated, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is less than or equal to the preset amplitude. Set the amplitude to avoid over-vibration of the screen, which greatly enhances the reliability of screen vibration.

In addition, according to the target amplitude, the amplitude of the corresponding frequency point in the audio signal is modulated, which realizes the precise control of the audio signal to be played, and modulates the amplitude of the corresponding frequency point in the audio signal with the target amplitude greater than the preset amplitude. , the amplitude of the amplitude less than or equal to the preset amplitude at the corresponding frequency point in the audio signal is not modulated, which improves the audio effect of the screen sounding in the low frequency band of the audio signal and improves the user experience.

In an embodiment, the target amplitude for amplitude modulation of the audio signal is determined according to the target amplitude and the preset amplitude, and the specific method includes: obtaining a preset formula, wherein the preset formula is 20*lg(S(f)/Sth ), S(f) represents the target amplitude, and Sth represents the preset amplitude; the target amplitude for modulating the audio signal is determined according to the target amplitude, the preset amplitude and the preset formula. It should be noted that, by substituting the target amplitude and the preset amplitude into the preset formula, the target amplitude for amplitude modulation of the audio signal can be obtained, and the amplitude modulation is amplitude down modulation. For example, if the target amplitude is 2mm and the preset amplitude is 1mm, the target amplitude can be obtained by calculating the preset formula to be 6db, that is, the amplitude of down-modulating the amplitude of the corresponding frequency point in the audio signal is 6db. After the amplitude of the corresponding frequency point in the audio signal is down-modulated by 6db, it is expected that the amplitude generated when the screen plays the amplitude-modulated audio signal to the corresponding frequency point is less than or equal to 1mm.

In one embodiment, the screen over-vibration protection method provided by the embodiment of the present invention further includes: when it is detected that the current amplitude of the screen is greater than the preset amplitude, issuing a screen over-vibration reminder to remind the user that the current amplitude of the screen is greater than the preset amplitude amplitude. In an example, when the electronic device is talking on the screen or playing music, the vibration sensor monitors the current amplitude of the screen in real time, and when the current amplitude of the screen monitored by the vibration sensor is greater than the preset amplitude, the processor controls the electronic device to issue a screen over-vibration. Reminder, for example, display a screen over-vibration reminder message on the screen, and control the screen to emit a beep to remind the user that the screen is over-vibrated, the volume of the screen sound needs to be reduced, or to remind the user to calibrate the screen vibration function.

In one embodiment, when it is detected that the current amplitude of the screen is greater than the preset amplitude, the screen vibration function is calibrated. It should be noted that during the long-term use of electronic equipment, the structural state of its internal devices may change slightly, such as the change in the degree of adhesion between the screen and the exciter, which will cause the vibration mode of the screen to change, then the current screen The vibration function is not accurate and needs to be calibrated. The current amplitude of the screen is monitored in real time by the vibration sensor, and the screen vibration function is calibrated, which further increases the reliability of the screen over-vibration protection.

In an example, calibrating the screen vibration function includes: playing a preset audio signal through the screen, and collecting vibration information generated when the screen plays the preset audio signal through a vibration sensor; converting the vibration information in the frequency domain to obtain the vibration information. Frequency domain vibration signal of vibration information; update the screen vibration function according to the preset audio signal and frequency domain vibration signal. It should be noted that, for the specific process of calibrating or updating the screen vibration function, reference may be made to the corresponding process in the above-mentioned related embodiments of establishing the screen vibration function, which will not be repeated in this embodiment.

In one embodiment, when it is detected that the current amplitude of the screen is greater than the preset amplitude, a calibration instruction of the screen vibration function is generated; when it is detected that the screen stops sounding, the screen vibration function is calibrated based on the calibration instruction. Or, when it is detected that the current amplitude of the screen is greater than the preset amplitude, a calibration reminder of the screen vibration function is generated to remind the user to calibrate the screen vibration function; when it is detected that the screen stops sounding, the calibration reminder is output; and the screen vibration function is calibrated based on the user's trigger operation on the screen.

The screen over-vibration protection method provided by the above-mentioned embodiment, by acquiring the preset screen vibration function and the audio signal to be played, and determining the multiple amplitudes generated when the screen plays the audio signal according to the screen vibration function, when the multiple amplitudes are determined. When there is a target amplitude greater than the preset amplitude, the audio signal is amplitude-modulated according to the target amplitude, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is less than or equal to the preset amplitude, so as to avoid adjusting the overall loudness of the audio signal. , flexibly control the audio signal and enhance the reliability of the screen over-vibration protection.

Please refer to FIG. 5 , which is a schematic structural block diagram of another electronic device according to an embodiment of the present invention.

As shown in FIG. 5 , the electronic device 200 includes a processor 201 and a memory 202, and the processor 201 and the memory 202 are connected through a bus 203, such as an I2C (Inter-integrated Circuit) bus.

Specifically, the processor 201 is configured to provide computing and control capabilities to support the operation of the entire electronic device. The processor 201 can be a central processing unit (Central Processing Unit, CPU), and the processor 201 can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuit (Application Specific Integrated Circuit, ASIC) ), Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Wherein, the general-purpose processor can be a microprocessor or the processor can also be any conventional processor or the like.

Specifically, the memory 202 may be a Flash chip, a read-only memory (ROM, Read-Only Memory) magnetic disk, an optical disk, a U disk, or a removable hard disk, or the like.

Those skilled in the art can understand that the structure shown in FIG. 5 is only a block diagram of a part of the structure related to the embodiment of the present invention, and does not constitute a limitation on the electronic device to which the embodiment of the present invention is applied. A device may include more or fewer components than shown in the figures, or combine certain components, or have a different arrangement of components.

Wherein, the processor is configured to run a computer program stored in the memory, and implement any one of the screen over-vibration protection methods provided in the embodiments of the present invention when executing the computer program.

In one embodiment, the processor is configured to run a computer program stored in a memory, and when executing the computer program, implements the following steps:

Obtain a preset screen vibration function, and obtain the audio signal to be played, and the screen vibration function is used to describe the relationship between the amplitude of the screen and the frequency of the audio signal;

According to the screen vibration function, determine a plurality of amplitudes generated when the screen plays the audio signal;

When it is determined that there is a target amplitude greater than a preset amplitude among the plurality of amplitudes, amplitude modulation is performed on the audio signal according to the target amplitude, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is smaller than or equal to the predetermined amplitude. Set the amplitude.

In one embodiment, before implementing the acquiring the preset screen vibration function, the processor is further configured to implement:

Play the preset audio signal through the screen, and collect the vibration information generated when the screen plays the preset audio signal through the vibration sensor;

performing frequency domain conversion on the vibration information to obtain a frequency domain vibration signal of the vibration information;

The screen vibration function is established according to the preset audio signal and the frequency domain vibration signal.

In one embodiment, when the processor implements the establishment of the screen vibration function according to the preset audio signal and the frequency domain vibration signal, it is configured to implement:

obtaining the rated voltage value of the preset audio signal;

According to the frequency domain vibration signal and the rated voltage value, determine the relationship between the amplitude of the unit voltage generated when the screen plays the preset audio signal and the frequency of the preset audio signal, and obtain the screen vibration function.

In one embodiment, the processor is further configured to implement: the installation position of the vibration sensor is determined according to the maximum amplitude area of the screen.

In one embodiment, when the processor determines the multiple amplitudes generated when the screen plays the audio signal according to the screen vibration function, the processor is configured to:

Convert the audio signal to be played in the frequency domain to obtain the target audio signal;

The product of the screen vibration function and the target audio signal is obtained to obtain a plurality of amplitudes generated when the screen plays the audio signal.

In an embodiment, when the processor implements the amplitude modulation of the audio signal according to the target amplitude, so that the amplitude of the audio signal after the amplitude modulation of the screen playback is less than or equal to a preset amplitude, the processor is executed. Set to implement:

According to the target amplitude and the preset amplitude, determine the target amplitude for amplitude modulation of the audio signal;

According to the target amplitude, the amplitude of the corresponding frequency point in the audio signal is modulated, so that the amplitude generated by the audio signal after the amplitude modulation is played on the screen is less than or equal to the preset amplitude.

In one embodiment, when the processor determines the target amplitude for amplitude modulation of the audio signal according to the target amplitude and the preset amplitude, the processor is configured to achieve:

obtaining a preset formula, wherein the preset formula is 20*lg(S(f)/Sth), S(f) represents the target amplitude, and Sth represents the preset amplitude;

A target amplitude for modulating the audio signal is determined according to the target amplitude, the preset amplitude and the preset formula.

In an embodiment, the processor is further arranged to implement:

When it is detected that the current amplitude of the screen is greater than the preset amplitude, a screen over-vibration reminder is issued to remind the user that the current amplitude of the screen is greater than the preset amplitude; or

When it is detected that the current amplitude of the screen is greater than the preset amplitude, the screen vibration function is calibrated.

In one embodiment, when the processor implements the calibration of the screen vibration function, it is configured to implement:

The screen vibration function is updated according to the preset audio signal and the frequency domain vibration signal.

It should be noted that those skilled in the art can clearly understand that, for the convenience and brevity of the description, for the specific working process of the electronic device described above, reference may be made to the corresponding process in the foregoing embodiments of the screen over-vibration protection method. No longer.

Embodiments of the present invention further provide a storage medium for computer-readable storage, where the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the following: The steps of any one of the methods for screen over-vibration protection provided by the embodiments of the present invention.

The storage medium may be an internal storage unit of the electronic device described in the foregoing embodiments, such as a hard disk or a memory of the electronic device. The storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk equipped on the electronic device, a smart memory card (Smart Media Card, SMC), a Secure Digital (Secure Digital, SD) card, Flash card (Flash Card) and so on.

The embodiment of the present invention provides a screen over-vibration protection method, an electronic device, and a storage medium. The embodiment of the present invention obtains a preset screen vibration function and an audio signal to be played, and determines when the screen plays an audio signal according to the screen vibration function. The generated multiple amplitudes, when it is determined that there is a target amplitude greater than the preset amplitude among the multiple amplitudes, the audio signal is amplitude-modulated according to the target amplitude, so that the amplitude of the audio signal after the amplitude-modulated audio signal is played on the screen is less than or It is equal to the preset amplitude, which can flexibly adjust the audio signal, improve the protection effect of screen over-vibration, and greatly enhance the reliability of screen over-vibration protection.

Those of ordinary skill in the art can understand that all or some steps in the methods disclosed above, functional modules/units in a system, and an apparatus can be implemented as software, firmware, hardware, and appropriate combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components Components execute cooperatively. Some or all physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and can include any information delivery media, as is well known to those of ordinary skill in the art .

It should be understood that, as used in this specification and the appended claims, the term "and/or" refers to and including any and all possible combinations of one or more of the associated listed items. It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or system comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or system. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in the process, method, article or system that includes the element.

The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages or disadvantages of the embodiments. The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

A screen over-vibration protection method, comprising:

Obtain a preset screen vibration function, and obtain the audio signal to be played, and the screen vibration function is used to describe the relationship between the amplitude of the screen and the frequency of the audio signal;

According to the screen vibration function, determine a plurality of amplitudes generated when the screen plays the audio signal;

When it is determined that there is a target amplitude greater than a preset amplitude among the plurality of amplitudes, amplitude modulation is performed on the audio signal according to the target amplitude, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is smaller than or equal to the predetermined amplitude. Set the amplitude.
The method for protecting a screen from over-vibration according to claim 1, wherein before acquiring the preset screen vibration function, the method further comprises:

Play the preset audio signal through the screen, and collect the vibration information generated when the screen plays the preset audio signal through the vibration sensor;

performing frequency domain conversion on the vibration information to obtain a frequency domain vibration signal of the vibration information;

The screen vibration function is established according to the preset audio signal and the frequency domain vibration signal.
The screen over-vibration protection method according to claim 2, wherein the establishing the screen vibration function according to the preset audio signal and the frequency domain vibration signal comprises:

obtaining the rated voltage value of the preset audio signal;

According to the frequency domain vibration signal and the rated voltage value, determine the relationship between the amplitude of the unit voltage generated when the screen plays the preset audio signal and the frequency of the preset audio signal, and obtain the screen vibration function.
The screen over-vibration protection method according to claim 2, wherein the installation position of the vibration sensor is determined according to the maximum amplitude area of the screen.
The screen over-vibration protection method according to claim 1, wherein the determining, according to the screen vibration function, multiple amplitudes generated when the screen plays the audio signal, comprising:

Convert the audio signal to be played in the frequency domain to obtain the target audio signal;

The product of the screen vibration function and the target audio signal is obtained to obtain a plurality of amplitudes generated when the screen plays the audio signal.
The screen over-vibration protection method according to any one of claims 1-5, wherein the amplitude modulation is performed on the audio signal according to the target amplitude, so that the screen plays the amplitude generated by the amplitude-modulated audio signal Less than or equal to preset amplitudes, including:

According to the target amplitude and the preset amplitude, determine the target amplitude for amplitude modulation of the audio signal;

According to the target amplitude, the amplitude of the corresponding frequency point in the audio signal is modulated, so that the amplitude of the audio signal after the amplitude modulation is played on the screen is less than or equal to the preset amplitude.
The screen over-vibration protection method according to claim 6, wherein the determining the target amplitude for amplitude modulation of the audio signal according to the target amplitude and the preset amplitude comprises:

obtaining a preset formula, wherein the preset formula is 20*lg(S(f)/Sth), S(f) represents the target amplitude, and Sth represents the preset amplitude;

A target amplitude for modulating the audio signal is determined according to the target amplitude, the preset amplitude and the preset formula.
The screen over-vibration protection method according to any one of claims 1-5, wherein the screen over-vibration protection method further comprises:

When it is detected that the current amplitude of the screen is greater than the preset amplitude, a screen over-vibration reminder is issued to remind the user that the current amplitude of the screen is greater than the preset amplitude; or

When it is detected that the current amplitude of the screen is greater than the preset amplitude, the screen vibration function is calibrated.
The screen over-vibration protection method according to claim 8, wherein the calibrating the screen vibration function comprises:

Play the preset audio signal through the screen, and collect the vibration information generated when the screen plays the preset audio signal through the vibration sensor;

performing frequency domain conversion on the vibration information to obtain a frequency domain vibration signal of the vibration information;

The screen vibration function is updated according to the preset audio signal and the frequency domain vibration signal.
An electronic device comprising a processor, a memory, a computer program stored on the memory and executable by the processor, and a data bus for implementing connection communication between the processor and the memory, wherein When the computer program is executed by the processor, the steps of the screen over-vibration protection method according to any one of claims 1 to 9 are implemented.
A storage medium for computer-readable storage, wherein the storage medium stores one or more programs that can be executed by one or more processors to implement claims 1 to 9 The steps of any one of the method for screen over-vibration protection.