CN108471575B - A kind of speaker draining method of mobile terminal and mobile terminal - Google Patents

Abstract

A liquid discharging method for a loudspeaker of a mobile terminal and the mobile terminal are provided, wherein the method comprises the following steps: detecting the liquid residual quantity of the loudspeaker, and adjusting the current signal gain value of the loudspeaker to a first signal gain value corresponding to the liquid residual quantity; and controlling the loudspeaker to play a target audio signal with a specific frequency according to the first signal gain value so as to discharge the liquid from the loudspeaker through vibration when the target audio signal is played by the loudspeaker. By implementing the embodiment of the invention, the damage to the loudspeaker can be reduced in the loudspeaker liquid discharging process.

Description

A kind of speaker draining method of mobile terminal and mobile terminal

technical field

The present invention relates to the technical field of electronic devices, and in particular, to a method for draining liquid from a speaker of a mobile terminal and the mobile terminal.

Background technique

With the continuous development of waterproof technology, more and more mobile terminals such as mobile phones and smart watches have waterproof functions. Currently, there is a waterproof technology on the market: the vibration of playing audio through the speaker will drain the water that enters the inside of the speaker, thereby keeping the inside of the speaker dry. However, in practice, it is found that this drainage method generally requires the mobile terminal to play audio at a higher volume level. Due to the limitations of the speaker's own material, this drainage method is likely to cause damage to the speaker, thereby reducing the speaker's performance. sound quality.

SUMMARY OF THE INVENTION

Embodiments of the present invention disclose a method for draining liquid from a speaker of a mobile terminal and the mobile terminal, which can reduce damage to the speaker during the process of draining the speaker.

A first aspect of the embodiments of the present invention discloses a method for draining liquid from a speaker of a mobile terminal. The method includes:

Detecting the liquid residual amount of the speaker, and adjusting the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount;

The speaker is controlled to play a target audio signal of a specific frequency according to the first signal gain value, so that the liquid is discharged from the speaker through the vibration of the speaker when the target audio signal is played.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the detecting the residual liquid amount of the speaker includes:

controlling the microphone of the mobile terminal to receive the first audio signal played by the speaker to obtain a second audio signal;

The liquid residual amount of the speaker is determined according to the matching degree of the first audio signal and the second audio signal.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, the controlling the speaker to play the target audio signal according to the first signal gain value includes:

Determine whether the output power output to the speaker after the target audio signal is amplified according to the first signal gain value exceeds the rated maximum input power of the speaker;

if the output power exceeds the maximum input power, adjusting the first signal gain value until the output power is equal to or lower than the maximum input power;

The speaker is controlled to play the target audio signal according to the adjusted first signal gain value.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, before the controlling the speaker to play a target audio signal of a specific frequency according to the first signal gain value, the method further includes:

Determine whether the vibrating membrane of the speaker is deflected in a direction away from the sound outlet of the speaker when the speaker is in a non-working state, and the non-working state is a state in which the speaker does not play an audio signal;

If the diaphragm is deflected in a direction away from the sound outlet of the speaker, the controlling of the speaker to play a target audio signal of a specific frequency according to the first signal gain value is performed.

As an optional implementation manner, in the first aspect of the embodiment of the present invention, if the vibrating membrane is not deflected in a direction away from the sound outlet hole of the speaker, the heating source of the mobile terminal is controlled to generate heat to generate heat The liquid is drained from the speaker.

A second aspect of the embodiments of the present invention discloses a mobile terminal, including:

A detection unit for detecting the residual liquid of the speaker;

a gain adjustment unit, configured to adjust the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount;

The playing unit is configured to control the speaker to play a target audio signal of a specific frequency according to the first signal gain value, so as to discharge the liquid from the speaker through the vibration of the speaker when the target audio signal is played.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the detection unit includes:

a control subunit, configured to control the microphone of the mobile terminal to receive the first audio signal played by the speaker to obtain the second audio signal;

A determination subunit, configured to determine the residual liquid amount of the speaker according to the matching degree of the first audio signal and the second audio signal.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the playback unit includes:

a judgment subunit, configured to judge whether the output power output to the speaker after the target audio signal is amplified according to the first signal gain value exceeds the rated maximum input power of the speaker;

an adjustment subunit, configured to adjust the first signal gain value until the output power is equal to or lower than the maximum input power;

The playing subunit is configured to control the speaker to play the target audio signal according to the adjusted first signal gain value.

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the mobile terminal further includes:

The deflection judging unit is configured to judge whether the vibrating membrane of the loudspeaker is in a non-working state before the playing unit controls the loudspeaker to play a target audio signal of a specific frequency according to the first signal gain value. Deflection in the direction away from the sound outlet of the speaker; wherein, the non-working state is a state in which the speaker does not play an audio signal;

The manner in which the playing unit is used to control the speaker to play the target audio signal of a specific frequency according to the first signal gain value is specifically:

The playing unit is configured to control the speaker to play a target audio signal of a specific frequency according to the first signal gain value when the deflection judging unit determines that the diaphragm is deflected in a direction away from the sound outlet of the speaker .

As an optional implementation manner, in the second aspect of the embodiment of the present invention, the mobile terminal further includes:

The heating control unit is configured to control the heating source of the mobile terminal to generate heat when the deflection judging unit judges that the vibrating membrane is not deflected in a direction away from the sound outlet hole of the speaker, so as to generate heat to remove the liquid from the speaker. out of the speakers.

A third aspect of the embodiments of the present invention discloses a mobile terminal, including:

a memory in which executable program code is stored;

a processor coupled to the memory;

The processor invokes the executable program code stored in the memory to execute any one of the methods disclosed in the first aspect of the embodiments of the present invention.

A fourth aspect of the present invention discloses a computer-readable storage medium storing a computer program, wherein the computer program causes a computer to execute any one of the methods disclosed in the first aspect of the embodiments of the present invention.

A fifth aspect of the embodiments of the present invention discloses a computer program product, which, when the computer program product runs on a computer, causes the computer to execute any one of the methods disclosed in the first aspect of the embodiments of the present invention.

Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

In this embodiment of the present invention, the terminal device may detect the residual liquid amount of the speaker, and adjust the current signal gain value of the speaker to the first signal gain value corresponding to the liquid residual amount; frequency of the target audio signal to expel the liquid from the speaker with vibrations when the target audio signal is played through the speaker. It can be seen that, in the embodiment of the present invention, the mobile terminal can select different signal gain values according to different liquid residual amounts, so that the energy generated when playing the target audio signal can be adapted to the liquid residual amount, and then can be used in the process of speaker discharge. reduce damage to the speakers.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic flowchart of a method for discharging liquid from a speaker of a mobile terminal disclosed in an embodiment of the present invention;

FIG. 2 is a schematic flowchart of another method for draining liquid from a speaker of a mobile terminal disclosed in an embodiment of the present invention;

3 is a schematic flowchart of another method for draining a loudspeaker of a mobile terminal disclosed in an embodiment of the present invention;

4 is a schematic front view of a speaker sound hole of a mobile terminal disclosed in an embodiment of the present invention;

5 is a schematic structural diagram of a speaker of a mobile terminal disclosed in an embodiment of the present invention;

6 is a schematic structural diagram of a mobile terminal disclosed in an embodiment of the present invention;

7 is a schematic structural diagram of another mobile terminal disclosed in an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of another mobile terminal disclosed in an embodiment of the present invention.

Detailed ways

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 only a 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.

It should be noted that the terms "comprising" and "having" and any modifications thereof in the embodiments of the present invention and the accompanying drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.

Embodiments of the present invention disclose a method for draining liquid from a speaker of a mobile terminal and the mobile terminal, which can reduce damage to the speaker during the process of draining the speaker. Each of them will be described in detail below.

Example 1

Please refer to FIG. 1 . FIG. 1 is a schematic flowchart of a method for draining liquid from a speaker of a mobile terminal disclosed in an embodiment of the present invention. The speaker draining method of the mobile terminal described in FIG. 1 is applicable to mobile terminals with speakers, such as smart watches, smart phones, tablet computers, and tutoring machines, which are not limited in the embodiments of the present invention. The operating system of the above-mentioned mobile terminal may include, but is not limited to, an Android operating system, an IOS operating system, a Symbian (Symbian) operating system, a BlackBerry (Blackberry) operating system, a Windows Phone 8 operating system, etc. limited. Taking a mobile terminal with a speaker as an example, as shown in FIG. 1 , the speaker draining method of the mobile terminal may include the following steps:

101. The mobile terminal detects the liquid residual amount of its speaker, and adjusts the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount.

In the embodiment of the present invention, the speaker may be a moving coil speaker, an electromagnetic speaker, an electrostatic speaker, or a piezoelectric speaker, which is not limited in the embodiment of the present invention. In addition, one way for the mobile terminal to detect the residual liquid level of its speaker may be:

The mobile terminal controls its microphone to receive the first audio signal played by the speaker to obtain the second audio signal; the mobile terminal determines the residual liquid amount of the speaker according to the matching degree of the first audio signal and the second audio signal.

In the above-mentioned embodiment, due to the residual liquid, the humidity inside the speaker may be higher than the humidity when dry, which will affect the diaphragm of the speaker, resulting in a lower degree of restoration of the sound signal after the speaker converts the audio signal into a sound signal. Poor, generally speaking, the higher the humidity, the lower the reduction degree. In addition, the residual liquid will also affect the propagation of the sound signal, resulting in a difference between the sound signal received by the microphone and the sound signal played by the speaker, and the greater the residual liquid, the more obvious the difference. Therefore, the mobile terminal can determine the degree of matching between the first audio signal and the second audio signal according to the difference in signal strength between the first audio signal and the second audio signal and/or the difference in frequency spectrum between the first audio signal and the second audio signal, thereby Determine the amount of liquid remaining in the speaker.

As another optional implementation manner, the mobile terminal can also detect the residual liquid amount of its speaker through the following steps:

The mobile terminal obtains the real-time impedance value of the speaker in the process of playing the sound of the speaker, and determines the residual liquid amount of the speaker according to the difference between the real-time impedance value and the standard impedance value; wherein, the standard impedance value is the impedance value when the speaker has no residual liquid . When there is residual liquid in the speaker, the residual liquid may block the sound outlet above the speaker diaphragm, thereby compressing the space for air vibration and increasing the resistance of the diaphragm to vibrate upward, which is equivalent to reducing the sound when the speaker plays sound. impedance value. It can be understood that the residual amount of liquid may affect the volume of the air vibration space and the resistance of the diaphragm when it vibrates upward, so the residual amount of liquid can be expressed as a function related to the impedance value of the speaker. In addition, the above-mentioned standard impedance value may be a specific value or a value range, which is not limited in the embodiment of the present invention.

Further, after the mobile terminal detects the residual amount of liquid, it can also determine whether the residual amount of liquid exceeds a specified threshold value, and if so, the mobile terminal adjusts the current signal gain value of the speaker to the first signal gain value corresponding to the residual amount of liquid. If not exceeded, the mobile terminal directly ends this process, thereby reducing the possibility of the mobile terminal misjudging that there is residual liquid in the speaker due to the high humidity of the ambient air.

102. The mobile terminal controls the speaker to play a target audio signal of a specific frequency according to the first signal gain value.

In this embodiment of the present invention, the terminal device may discharge the liquid from the speaker through vibration when the speaker plays the target audio signal. It can be understood that when the target audio signal is played according to different signal gain values, the degree of vibration of the speaker is different, and the force acting on the residual liquid is different. In order to discharge the liquid remaining in the loudspeaker, a force needs to be applied to the liquid, and the critical value of the force required to discharge the liquid from the loudspeaker varies according to the amount of residual liquid, which can be established based on a large number of experimental data. The corresponding relationship between the liquid residual amount and the force acting on the liquid, further, the corresponding relationship between the liquid residual amount and the signal gain value can be established. Therefore, when the speaker is drained by playing the target audio signal, the corresponding signal gain value is selected according to the residual amount of liquid, which is beneficial to reduce the speaker playing the audio signal according to an excessively high signal gain value (in order to drain the liquid from the speaker). probability of being damaged.

Optionally, the target audio signal can be an ultrasonic signal, and the specific frequency of the target audio signal can be 110kHz, 1.7MHz, or 2.4MHz, etc. Correspondingly, the speaker can be a piezoelectric speaker, so that the residual liquid can be ultrasonically atomized. , so that the liquid remaining in the speaker is converted into a vapor state, which is easier to discharge from the speaker.

It can be seen that, in the method described in FIG. 1 , the mobile terminal can detect the liquid residual amount of the speaker, and adjust the current signal gain value of the speaker to the first signal gain value corresponding to the liquid residual amount; then according to the first signal gain The value controls the speaker to play the target audio signal of a specific frequency, which can reduce the probability of damage to the speaker while ensuring the drainage effect, which is beneficial to reduce the damage to the speaker during the process of speaker drainage.

Embodiment 2

Please refer to FIG. 2 , which is a schematic flowchart of another method for draining liquid from a speaker of a mobile terminal disclosed in an embodiment of the present invention. As shown in FIG. 2 , the method for draining the loudspeaker of the mobile terminal includes:

201. The mobile terminal controls its microphone to receive the first audio signal played by the speaker, so as to obtain the second audio signal.

202. The mobile terminal determines the residual liquid amount of the speaker according to the matching degree of the first audio signal and the second audio signal.

203. The mobile terminal adjusts the current signal gain value of the speaker to a first signal gain value corresponding to the residual liquid amount.

204. The mobile terminal determines whether the output power output to the speaker after the target audio signal is amplified according to the above-mentioned first signal gain value exceeds the rated maximum input power of the speaker. If yes, go to step 205, if not, go to step 206.

205. The mobile terminal adjusts the first signal gain value until the output power is equal to or lower than the maximum input power, and controls the speaker to play the target audio signal according to the adjusted first signal gain value.

In the embodiment of the present invention, the mobile terminal can amplify the target audio signal through modules such as a power amplifier, and then output the signal to the speaker, wherein the amplification degree of the target audio signal by the power amplifier is limited by the signal gain value. However, due to the limitation of material, structure and other factors, the speaker is generally set with a rated maximum input power. If the power of an audio signal input to the speaker exceeds the maximum input power, it is easy to damage the components of the speaker, resulting in the performance of the speaker being degraded. Since the maximum input power of different speakers is different, in this embodiment of the present invention, after adjusting the signal gain value to the first signal gain value, it is further judged whether amplifying the target audio signal according to the first signal gain value is likely to damage the speaker, and if so (that is, the output power exceeds the maximum input power), the first signal gain value is adjusted, preferably, the mobile terminal reduces the first signal gain value.

206. The mobile terminal controls the speaker to play the target audio signal according to the first signal gain value corresponding to the residual liquid amount.

In this embodiment of the present invention, if the mobile terminal executes step 204 and determines that the output power does not exceed the maximum input power of the speaker, the first signal gain value may not be adjusted, and the speaker may be controlled directly according to the first signal gain value determined according to the residual liquid amount. Play the target audio signal.

In addition, in this embodiment of the present invention, the first audio signal played by the speaker may be any audio signal, such as the call audio during a call on a smartphone, or a tune played by a music application; For water wading detection, after detecting that the mobile terminal is wading in water, if any application of the mobile terminal triggers the speaker to play the first audio signal, then the mobile terminal performs steps 201 to 206, so that the mobile terminal can automatically perform a drainage operation on the speaker, No need for manual triggering by the user.

It can be seen that, in the method described in FIG. 2 , after determining the first signal gain value corresponding to the liquid residual amount, the mobile terminal can further judge whether amplifying the target audio signal according to the first signal gain value is easy to damage the speaker. Yes, the mobile terminal adjusts the first signal gain value, so that the damage to the speaker can be further reduced in the process of draining the speaker.

Embodiment 3

Please refer to FIG. 3 , which is a schematic flowchart of another method for draining liquid from a speaker of a mobile terminal disclosed in an embodiment of the present invention. As shown in FIG. 3 , the speaker drainage method of the mobile terminal includes:

301. The mobile terminal controls its microphone to receive the first audio signal played by the speaker, so as to obtain the second audio signal.

302. The mobile terminal determines the residual liquid amount of the speaker according to the matching degree of the first audio signal and the second audio signal.

303. The mobile terminal adjusts the current signal gain value of the speaker to a first signal gain value corresponding to the residual liquid amount.

304. The mobile terminal determines whether the diaphragm of the speaker is deflected away from the sound outlet of the speaker when the speaker is in a non-working state. If so, perform steps 305 to 307, and if not, perform step 308.

In the embodiment of the present invention, the non-working state is the state in which the speaker is not playing audio signals, and the vibrating membrane of the speaker is in a normal position. If there is residual liquid in the speaker, the vibrating membrane may be deflected and deviate from the normal position. The action is deflected away from the sound outlet of the speaker. At this time, there is a lot of residual liquid accumulated in the speaker. Therefore, the mobile terminal performs steps 305 to 309 to discharge the liquid from the speaker by playing the target audio signal.

In this embodiment of the present invention, the mobile terminal can determine whether the vibrating membrane is deflected in a direction away from the sound outlet hole of the speaker according to the distance value detected by the distance sensor. Specifically, please refer to FIG. 4 and FIG. 5 together. Taking a moving coil speaker as an example, when the speaker is in a non-working state and there is no residual liquid in the speaker (especially in the sound cavity 10 ), the diaphragm 20 does not generate At this time, the distance between the vibrating membrane 20 and the distance sensor 30 is L1; when there is residual liquid in the sound cavity 10, especially when the residual liquid adheres to the vibrating membrane 20, the vibrating membrane 20 is deflected, and the vibrating membrane 20 and the distance sensor are The distance between 30 is L2; whether the diaphragm 20 is deflected away from the speaker sound hole 40 can be determined by calculating the difference between L1 and L2 Δ=|L1-L2|. Specifically, it can be determined whether Δ is greater than the specified difference. If so, it is determined that the diaphragm 20 is deflected away from the speaker sound hole 40 . If not, it is determined that the diaphragm 20 is not deflected away from the speaker sound hole 40 .

305. The mobile terminal determines whether the output power output to the speaker after the target audio signal is amplified according to the above-mentioned first signal gain value exceeds the rated maximum input power of the speaker. If so, execute steps 306 to 307, and if not, execute directly Step 307.

306. The mobile terminal adjusts the first signal gain value until the output power is equal to or lower than the maximum input power.

307. The mobile terminal controls the speaker to play the target audio signal according to the adjusted first gain value.

It can be understood that, in this embodiment of the present invention, if the mobile terminal performs step 305 and determines that the output power exceeds the maximum input power, then the above-mentioned adjusted first gain value when performing step 307 is the same as the first gain value determined by performing step 303. If it is determined that the output power does not exceed the maximum input power in step 305, then the adjusted first gain value when step 307 is performed is the same as the first gain value determined in step 303.

308. The mobile terminal controls its heating source to generate heat, so as to generate heat to discharge the liquid from the speaker.

In this embodiment of the present invention, if the mobile terminal performs step 304 and determines that the diaphragm of the speaker is not deflected in a direction away from the sound outlet, it can be considered that there is relatively little liquid remaining in the speaker, and the mobile terminal may not perform any liquid drain operation, or Step 308 may be performed: using the heat source of the mobile terminal to generate heat to discharge the liquid from the speaker. The heat source of the mobile terminal may include components that can generate heat, such as a battery, a central processing unit (Central Processing Unit, CPU). Specifically, the mobile terminal can increase the output current when the battery supplies power to each component; or, wake up all the application programs in the background process, and increase the calculation amount of the CPU, so as to increase the heat generated by the CPU. Further, in order to reduce the influence of heating on user experience, the mobile terminal may limit the duration of executing step 308 . It should be noted that, in some possible implementation manners, the mobile terminal may also perform step 308 while performing step 304 to discharge the liquid from the speaker by playing an audio signal and controlling the heating source to generate heat, thereby improving the liquid discharge. efficiency.

It can be seen that in the method described in FIG. 3, the mobile terminal can select different signal gain values according to different liquid residual amounts, and can also select different drainage operations according to the liquid residual amount: play the target audio signal or control the heat source to generate heat; when When the residual amount of liquid is relatively small, it is not necessary to play the target audio signal to perform the liquid discharge operation, which is also beneficial to reduce the damage to the speaker during the liquid dispensing process.

Embodiment 4

Please refer to FIG. 6, which is a schematic structural diagram of a mobile terminal disclosed in an embodiment of the present invention. As shown in Figure 6, the mobile terminal may include:

A detection unit 601 for detecting the residual liquid amount of the speaker;

a gain adjustment unit 602, configured to adjust the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount detected by the detection unit 601;

The playback unit 603 is configured to control the speaker to play the target audio signal of a specific frequency according to the first signal gain value determined by the gain adjustment unit 602, so as to discharge the liquid from the speaker through vibration when the speaker plays the target audio signal.

Wherein, implementing the mobile terminal shown in FIG. 6 can detect the liquid residual amount of the speaker, and adjust the current signal gain value of the speaker to the first signal gain value corresponding to the liquid residual amount; and then control according to the first signal gain value. The speaker plays a target audio signal of a specific frequency, which can reduce the probability of damage to the speaker while ensuring the effect of liquid drainage, which is beneficial to reduce damage to the speaker during the process of liquid draining of the speaker.

Embodiment 5

Please refer to FIG. 7, which is a schematic structural diagram of another mobile terminal disclosed in an embodiment of the present invention. The mobile terminal shown in FIG. 7 is obtained by optimizing the mobile terminal shown in FIG. 6 . Compared with the mobile terminal shown in FIG. 6, in the mobile terminal shown in FIG. 7:

The detection unit 601 may include:

The control subunit 6011 is used to control the microphone of the mobile terminal to receive the first audio signal played by the speaker to obtain the second audio signal;

The determination subunit 6012 is configured to determine the residual liquid amount of the speaker according to the matching degree between the first audio signal and the second audio signal received by the control subunit 6011 .

Optionally, in the mobile terminal shown in FIG. 7 , the playback unit 603 may include:

The judgment subunit 6031 is used to judge whether the output power output to the speaker exceeds the rated maximum input power of the speaker after the target audio signal is amplified according to the first signal gain value determined by the gain adjustment unit 602;

The adjustment subunit 6032 is used to adjust the first signal gain value until the output power is equal to or lower than the maximum input power when the judgment subunit 6031 determines that the output power exceeds the maximum input power;

The playing subunit 6033 is configured to control the speaker to play the target audio signal according to the first signal gain value adjusted by the adjusting subunit 6032.

Further optionally, the mobile terminal shown in FIG. 7 may also include:

The deflection judging unit 604 is used to judge whether the vibrating membrane of the loudspeaker is deflected in the direction away from the sound outlet of the loudspeaker when the loudspeaker is in a non-working state before the playing unit 603 controls the loudspeaker to play the target audio signal of a specific frequency according to the first signal gain value ; Among them, the non-working state is the state that the speaker does not play the audio signal;

Correspondingly, the manner in which the above-mentioned playing unit 603 is used to control the speaker to play the target audio signal of a specific frequency according to the first signal gain value may specifically be:

The playing unit 603 is configured to control the loudspeaker to play the target audio signal of a specific frequency according to the first signal gain value when the deflection judging unit 604 judges that the diaphragm is deflected away from the sound outlet of the loudspeaker.

In addition, the mobile terminal shown in FIG. 7 may also include:

The heating control unit 605 is configured to control the heating source of the mobile terminal to generate heat when the deflection judging unit 604 judges that the diaphragm is not deflected away from the sound outlet of the speaker, so as to generate heat to discharge the liquid from the speaker.

It can be seen that, when the mobile terminal shown in FIG. 7 is implemented, the damage to the speaker can be reduced by adjusting the gain value of the signal when the target audio signal is played for the drainage operation. It is also possible to further reduce the damage to the speaker during the liquid discharge process by judging the input power and switching the specific execution mode of the liquid discharge operation (playing the target audio signal or controlling the heat generation).

Embodiment 7

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another mobile terminal disclosed in an embodiment of the present invention. For the convenience of description, only the parts related to the embodiments of the present invention are shown, and the specific technical details are not disclosed, please refer to the method part of the embodiments of the present invention. The mobile terminal can be any mobile terminal including a smart phone, a smart watch, a smart bracelet, a tablet computer, etc. Taking the mobile terminal as a smart watch as an example:

FIG. 8 is a block diagram showing a partial structure of a smart watch provided by an embodiment of the present invention. Referring to FIG. 8 , the smart watch includes components such as a memory 1120 , an audio circuit 1160 , a processor 1180 , and a power supply 1190 . Those skilled in the art can understand that the structure of the smart watch shown in FIG. 8 does not constitute a limitation on the smart watch, and may include more or less components than shown, or combine some components, or arrange different components.

The following describes the various components of the smart watch in detail with reference to Figure 8:

The memory 1120 can be used to store software programs, modules and executable codes, and the processor 1180 executes various functional applications and data processing of the smart watch by running the software programs, modules and executable codes stored in the memory 1120. Execute any one of the speaker drainage methods of the mobile terminal shown in FIGS. 1 to 3 . The memory 1120 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, and the like; Data created by the use of the smart watch (such as audio data, phone book, etc.), etc. Additionally, memory 1120 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.

Audio circuit 1160, speaker 1161, microphone 1162 may provide an audio interface between the user and the smart watch. The audio circuit 1160 can transmit the received audio data converted electrical signal to the speaker 1161, and the speaker 1161 converts it into a sound signal for output; on the other hand, the microphone 1162 converts the collected sound signal into an electrical signal, which is converted by the audio circuit 1160 into an electrical signal. After receiving, it is converted into audio data, and then the audio data is output to the processor 1180 for processing, and then sent to, for example, another smart watch through the RF circuit, or the audio data is output to the memory 1120 for further processing. Specifically, the audio circuit 1160, the speaker 1161, and the microphone 1162 perform the following steps in this embodiment of the present invention:

The microphone 1162 receives the first audio signal played by the speaker 1161 to obtain a second audio signal. The audio circuit 1160 converts the second audio signal received by the microphone 1162 into audio data and transmits it to the processor 1180. The processor 1180 determines the speaker The liquid residual amount and the first signal gain value corresponding to the liquid residual amount. The audio circuit 1160 adjusts the current signal gain value to the first signal gain value, and performs signal amplification on the target audio signal according to the first signal gain value. The audio circuit 1160 transmits the amplified target audio signal to the speaker 1161, and the speaker 1161 outputs the target audio signal, so as to discharge the liquid from the speaker through the vibration when the speaker 1161 plays the target audio signal.

The processor 1180 is the control center of the smart watch, coupled with the memory 1120, and uses various interfaces and lines to connect various parts of the entire smart watch, by running or executing executable codes, software programs and/or modules stored in the memory 1120, And call the data stored in the memory 1120 to execute various functions of the smart watch and process data, in particular, execute any one of the speaker draining methods of the mobile terminal shown in FIG. 1 to FIG. 3 . Optionally, the processor 1180 may include one or more processing units; preferably, the processor 1180 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc. , the modem processor mainly deals with wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1180.

The smart watch may also include a power supply 1190 (such as a battery) that supplies power to various components. Preferably, the power supply may be logically connected to the processor 1180 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. .

Although not shown, the smart watch may further include a display unit, at least one sensor, an RF circuit, a Wi-Fi module, a camera, a Bluetooth module, an input button, and the like, which will not be repeated here.

An embodiment of the present invention discloses a computer-readable storage medium, which stores a computer program, wherein the computer program causes a computer to execute any one of the speaker draining methods of the mobile terminal shown in FIGS. 1 to 3 .

An embodiment of the present invention discloses a computer program product. The computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute any one of the mobile terminals shown in FIGS. 1 to 3 . speaker drainage method.

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the specific features, structures or characteristics may be combined in any suitable manner in one or more embodiments. Those skilled in the art should also know that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required by the present invention.

In various embodiments of the present invention, it should be understood that the size of the sequence numbers of the above-mentioned processes does not imply an inevitable sequence of execution, and the execution sequence of each process should be determined by its functions and inherent logic, rather than the implementation of the present invention. The implementation of the examples constitutes no limitation.

The units described above as separate components may or may not be physically separated, and components displayed as units may or may not be object units, and may be located in one place or distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

The above-mentioned integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-accessible memory. Based on such understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a memory , including several requests to cause a computer device (which may be a personal computer, a server, or a network device, etc., specifically a processor in the computer device) to execute some or all of the steps of the above methods in various embodiments of the present invention.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium includes a read-only storage medium. Memory (Read-Only Memory, ROM), Random Access Memory (Random Access Memory, RAM), Programmable Read-only Memory (PROM), Erasable Programmable Read Only Memory (Erasable Programmable Read Only Memory, EPROM), One-time Programmable Read-Only Memory (OTPROM), Electronically-Erasable Programmable Read-Only Memory (EEPROM), CompactDisc Read -Only Memory, CD-ROM) or other optical disk storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

A method for draining a loudspeaker of a mobile terminal and the mobile terminal disclosed in the embodiments of the present invention are described above in detail. The principles and implementations of the present invention are described with specific examples in this paper. The descriptions of the above embodiments are only used for Help to understand the method of the present invention and its core idea. Meanwhile, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific embodiments and application scope. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (8)

1. A loudspeaker drainage method of a mobile terminal, wherein the method comprises: Detecting the liquid residual amount of the speaker, and adjusting the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount; Controlling the speaker to play a target audio signal of a specific frequency according to the first signal gain value, so as to discharge the liquid from the speaker through the vibration when the speaker plays the target audio signal; And, before the control of the speaker to play a target audio signal of a specific frequency according to the first signal gain value, the method further includes: Determine whether the vibrating membrane of the speaker is deflected in a direction away from the sound outlet of the speaker when the speaker is in a non-working state, and the non-working state is a state in which the speaker does not play an audio signal; If the diaphragm is deflected in a direction away from the sound outlet of the speaker, the controlling of the speaker to play a target audio signal of a specific frequency according to the first signal gain value is performed. 2 . The method for draining liquid from a speaker of a mobile terminal according to claim 1 , wherein the detecting the residual liquid amount of the speaker comprises: 3 . controlling the microphone of the mobile terminal to receive the first audio signal played by the speaker to obtain a second audio signal; The liquid residual amount of the speaker is determined according to the matching degree of the first audio signal and the second audio signal. 3. The speaker draining method of the mobile terminal according to claim 1, wherein the controlling the speaker to play the target audio signal according to the first signal gain value comprises: Determine whether the output power output to the speaker after the target audio signal is amplified according to the first signal gain value exceeds the rated maximum input power of the speaker; if the output power exceeds the maximum input power, adjusting the first signal gain value until the output power is equal to or lower than the maximum input power; The speaker is controlled to play the target audio signal according to the adjusted first signal gain value. 4 . The method for draining liquid from a speaker of a mobile terminal according to claim 1 , wherein if the vibrating membrane is not deflected in a direction away from the sound outlet hole of the speaker, the heating source of the mobile terminal is controlled to generate heat, so that the Heat is generated to expel the liquid from the speaker. 5. A mobile terminal, characterized in that, comprising: A detection unit for detecting the residual liquid of the speaker; a gain adjustment unit, configured to adjust the current signal gain value of the speaker to a first signal gain value corresponding to the liquid residual amount; a playing unit, configured to control the speaker to play a target audio signal of a specific frequency according to the first signal gain value, so as to discharge the liquid from the speaker through the vibration when the speaker plays the target audio signal; The mobile terminal also includes: The deflection judging unit is configured to judge whether the vibrating membrane of the loudspeaker is in a non-working state before the playing unit controls the loudspeaker to play a target audio signal of a specific frequency according to the first signal gain value. Deflection in the direction away from the sound outlet of the speaker; wherein, the non-working state is a state in which the speaker does not play an audio signal; The manner in which the playing unit is used to control the speaker to play the target audio signal of a specific frequency according to the first signal gain value is specifically: The playing unit is configured to control the speaker to play a target audio signal of a specific frequency according to the first signal gain value when the deflection judging unit determines that the diaphragm is deflected in a direction away from the sound outlet of the speaker . 6. The mobile terminal according to claim 5, wherein the detection unit comprises: a control subunit, configured to control the microphone of the mobile terminal to receive the first audio signal played by the speaker to obtain the second audio signal; A determination subunit, configured to determine the residual liquid amount of the speaker according to the matching degree of the first audio signal and the second audio signal. 7. The mobile terminal according to claim 5, wherein the playback unit comprises: a judgment subunit, configured to judge whether the output power output to the speaker after the target audio signal is amplified according to the first signal gain value exceeds the rated maximum input power of the speaker; an adjustment subunit, configured to adjust the first signal gain value until the output power is equal to or lower than the maximum input power when the judgment subunit determines that the output power exceeds the maximum input power; The playing subunit is configured to control the speaker to play the target audio signal according to the adjusted first signal gain value. 8. The mobile terminal according to claim 5, wherein the mobile terminal further comprises: The heating control unit is configured to control the heating source of the mobile terminal to generate heat when the deflection judging unit judges that the vibrating membrane is not deflected in a direction away from the sound outlet hole of the speaker, so as to generate heat to remove the liquid from the speaker. out of the speakers.

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