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Dust filter detection method and mobile terminal

A technology of a mobile terminal and a detection method, which is applied in the direction of the sanitary device at the mouth of the microphone/receiver, and can solve the problems of being unable to determine whether the sounding device and the dust-proof net are blocked, etc.

Inactive Publication Date: 2018-05-22
VIVO MOBILE COMM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a dust-proof net detection method and a mobile terminal to solve the problem that the mobile terminal cannot determine whether the dust-proof net of the sound generating device is blocked

Method used

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  • Dust filter detection method and mobile terminal

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Experimental program
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Embodiment 1

[0027] refer to figure 1 , which shows a flow chart of the dust-proof net detection method in Embodiment 1 of the present invention, which may specifically include the following steps:

[0028] Step 101, when a target sound-emitting device in a mobile terminal emits sound, collect multiple first impedance values ​​of the target sound-emitting device and multiple first frequency values ​​of the sound signal.

[0029] In the embodiment of the present invention, the voice coil in the target sounding device can be connected to the analog-to-digital converter in the mobile terminal, so that when the target sounding device in the mobile terminal makes a sound, that is, when the target sounding device starts to work, the mobile terminal The input voltage value of the voice coil and the corresponding input current value at this time can be collected periodically through the analog-to-digital converter, so that within a preset time period, the mobile terminal can collect multiple input...

Embodiment 2

[0041] refer to figure 2 , which shows a flow chart of the dust-proof net detection method according to Embodiment 2 of the present invention, which may specifically include the following steps:

[0042] Step 201, when the sounding parameters of the target sounding device in the mobile terminal meet a preset condition, collect multiple second impedance values ​​of the target sounding device and multiple second frequency values ​​of the sound signal.

[0043] In the embodiment of the present invention, when the mobile terminal has not left the factory or has just left the factory, the dust-proof net of the target sound-generating device is still in a relatively clean state, so the sound-producing parameters such as the sound pressure level and the loudness value of the target sound-generating device will meet the preset conditions , that is, the sounding parameters are within the normal parameter range. At this time, the mobile terminal can play sound signals of various freque...

Embodiment 3

[0075] refer to Figure 4 , which shows a structural block diagram of a mobile terminal 400 according to Embodiment 3 of the present invention, which may specifically include:

[0076] The first collection module 401 is configured to collect a plurality of first impedance values ​​of the target sound-emitting device and a plurality of first frequency values ​​of the sound signal when the target sound-emitting device in the mobile terminal makes a sound;

[0077] A first generating module 402, configured to generate a target impedance curve according to the multiple first impedance values ​​and the multiple first frequency values;

[0078] A first determination module 403, configured to determine a target impedance value corresponding to a preset resonance frequency value in the target impedance curve;

[0079] The second determination module 404 is configured to determine that the dust filter of the target sound emitting device is abnormal when the difference between the pres...

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Abstract

The invention provides a dust filter detection method and a mobile terminal, relating to the technical field of mobile terminals. The method comprises the steps of when a target sounding device in a mobile terminal sounds, collecting multiple first impedances of the target sounding device and multiple first frequencies of a sound signal; generating a target impedance curve according to the multiple first impedances and the multiple first frequencies; determining a target impedance corresponding to a preset resonant frequency in the target impedance curve; and when a difference between a presetimpedance and the target impedance is greater than a preset difference, determining that the dust filter of the target sounding device is abnormal. In the method, when the difference between the preset impedance and the target impedance is greater than the preset difference, the mobile terminal can determine that a diaphragm in the target sounding device is prevented from vibrating, consequently,the impedance of the target sounding device is reduced, and then the dust filter of the target sounding device is determined abnormal.

Description

technical field [0001] The invention relates to the technical field of mobile terminals, in particular to a detection method for a dustproof net and a mobile terminal. Background technique [0002] Speakers, receivers and other sounding devices are important electroacoustic transducers in mobile terminals. The sounding device can convert the audio electrical signal received by the mobile terminal into sound through mechanical vibration, so that people can listen to the video through the sounding device. , voice messages from other users, and more. [0003] However, as the frequency of use of the mobile terminal increases, a large amount of dust will adhere to the dust-proof net of the sound-generating device after the sound-generating device is used for a long time, thereby blocking the pores of the dust-proof net. After the dust-proof net is blocked, there will be abnormal problems such as reduced sound and noise in the sound-generating device, and when the sound-generatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/12
CPCH04R1/12
Inventor 孙逊
Owner VIVO MOBILE COMM CO LTD
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