CN106792423B - Method for removing foreign matters in loudspeaker and mobile terminal - Google Patents

Method for removing foreign matters in loudspeaker and mobile terminal Download PDF

Info

Publication number
CN106792423B
CN106792423B CN201710112980.8A CN201710112980A CN106792423B CN 106792423 B CN106792423 B CN 106792423B CN 201710112980 A CN201710112980 A CN 201710112980A CN 106792423 B CN106792423 B CN 106792423B
Authority
CN
China
Prior art keywords
loudspeaker
value
quality factor
speaker
preset
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201710112980.8A
Other languages
Chinese (zh)
Other versions
CN106792423A (en
Inventor
蒋志成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN201710112980.8A priority Critical patent/CN106792423B/en
Publication of CN106792423A publication Critical patent/CN106792423A/en
Application granted granted Critical
Publication of CN106792423B publication Critical patent/CN106792423B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Abstract

The invention relates to the field of mobile communication, and provides a method for removing foreign matters in a loudspeaker and a mobile terminal, wherein the method for removing the foreign matters in the loudspeaker is applied to the mobile terminal and comprises the following steps: detecting a quality factor value of a loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value; when foreign matters exist in the loudspeaker, generating a driving signal with a preset frequency, wherein the difference value between the preset frequency and the system resonance frequency is smaller than a preset value; and driving the loudspeaker through the driving signal, controlling the loudspeaker to generate high-speed airflow, and removing the foreign matters through the high-speed airflow. According to the method for removing the foreign matters in the loudspeaker, provided by the embodiment of the invention, whether the foreign matters exist in the loudspeaker is judged according to the quality factor value, and the judgment is accurate; the foreign matters are removed through the high-speed airflow generated by the loudspeaker, so that the method is quick and effective, and the reliability and the service life of the loudspeaker are improved.

Description

Method for removing foreign matters in loudspeaker and mobile terminal
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method for removing a foreign object in a speaker and a mobile terminal.
Background
The speaker is mobile terminal's important part, along with audio and video broadcast function's use is more and more among the mobile terminal, the user is also higher and more high to the requirement of speaker, because it has the speaker trompil to open beside loudspeaker unit on mobile terminal's casing, this speaker trompil can lead to water or dirt to get into loudspeaker unit, dust can block up loudspeaker unit's play sound hole, steam more can be the water gathering in loudspeaker's cavity, these dust and steam not only can influence loudspeaker unit's performance, can shorten loudspeaker unit's life more, and it is very difficult to clear away dust and steam on loudspeaker unit, consequently present mobile terminal only "prevents" not "dredging to the steam and the dust that loudspeaker trompil got into. At present, the most mainstream waterproof and dustproof modes of the mobile terminal comprise two modes: firstly, adopt waterproof loudspeaker unit, waterproof loudspeaker is not only with high costs, and its electroacoustic index compares the performance relatively poor, the consumption is higher with the non-waterproof loudspeaker of the same money moreover. And secondly, an improved dustproof net is used, and although the dustproof net has waterproof and dustproof functions, the dustproof net influences the playing effect of the loudspeaker and improves the cost.
Disclosure of Invention
The embodiment of the invention provides a method for removing foreign matters in a loudspeaker and a mobile terminal, which can solve the problem that a loudspeaker unit in the prior art is easy to enter water and dust and cannot be removed.
An embodiment of the present invention provides a method for removing a foreign object in a speaker, which is applied to a mobile terminal, and is characterized in that the method includes:
detecting a quality factor value of a loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value;
when foreign matters exist in the loudspeaker, generating a driving signal with a preset frequency, wherein the difference value between the preset frequency and the system resonance frequency is smaller than a preset value;
and driving the loudspeaker through the driving signal, controlling the loudspeaker to generate high-speed airflow, and removing the foreign matters through the high-speed airflow.
According to the method for removing the foreign matters in the loudspeaker, provided by the embodiment of the invention, whether the foreign matters exist in the loudspeaker is judged according to the quality factor value, and the judgment is accurate; the loudspeaker is controlled to generate high-speed airflow, and foreign matters are removed through the high-speed airflow, so that the method is quick and effective, the reliability of the loudspeaker is improved, and the service life of the loudspeaker is prolonged.
On the other hand, an embodiment of the present invention provides a mobile terminal, including a speaker, and characterized by further including:
the detection module is used for detecting the quality factor value of the loudspeaker;
the judging module is used for judging whether foreign matters exist in the loudspeaker or not;
and the driving module is used for generating a driving signal with preset frequency to drive the loudspeaker to vibrate so as to remove foreign matters in the loudspeaker.
The mobile terminal provided by the embodiment of the invention can automatically test whether foreign matters exist in the loudspeaker without increasing extra cost, and can automatically remove the foreign matters; the performance of the loudspeaker is ensured, and a waterproof loudspeaker with high cost and low performance is avoided, so that the production cost of the mobile terminal is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic flowchart of a method for removing foreign matters from a speaker according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating the step of detecting the quality factor value of the speaker in step S11 and determining whether there is a foreign object in the speaker according to the quality factor value in the first embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating that if a foreign object blocks the sound outlet hole in step S13, the speaker is driven to vibrate to generate an air flow to remove the foreign object on the sound outlet hole according to the first embodiment of the present invention;
fig. 4 is a schematic flowchart of a method for removing foreign matters from a speaker according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating the step of detecting the quality factor value of the speaker in step S11 and determining whether there is a foreign object in the speaker according to the quality factor value in the second embodiment of the present invention;
fig. 6 is a schematic flow chart of a preferred method for removing foreign matters from a speaker according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of a mobile terminal according to a third embodiment of the present invention;
fig. 8 is a schematic structural diagram of a mobile terminal according to a fourth 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 drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1 to 5, the present invention provides a method for removing a foreign object in a speaker, which is applied to a mobile terminal and mainly aims at a situation that a sound outlet hole of the speaker is blocked by a foreign object, and the method comprises the following steps:
step S11, detecting a quality factor value of the loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value;
when dust and water enter the loudspeaker cavity or block the dustproof net of the loudspeaker, the sound output area of the loudspeaker is reduced, the state of the whole loudspeaker system is greatly changed compared with the normal state, the changes can be obtained by measuring the TS parameters of the loudspeaker system, and the quality factor value of the loudspeaker is the key parameter in the TS parameters. Therefore, by detecting the quality factor value of the loudspeaker, whether foreign matter exists in the loudspeaker can be accurately judged.
Step S12, when foreign matters exist in the loudspeaker, generating a driving signal with a preset frequency, wherein the difference value between the preset frequency and the system resonance frequency is smaller than a preset value;
in this step, the loudspeaker can generate high-speed airflow with the highest efficiency under the driving of the system resonance frequency signal. The system resonance frequency of a typical loudspeaker is 800Hz, and the preset frequency is 800 ± 100 Hz.
Step S13 is to drive the speaker by the driving signal, control the speaker to generate a high-speed airflow, and remove the foreign matter by the high-speed airflow.
The step S11 of detecting a quality factor value of the speaker and determining whether a foreign object exists in the speaker according to the quality factor value includes:
step S111, generating an audio driving signal, driving a loudspeaker to continuously work for a plurality of time by the audio driving signal, and detecting the direct current resistance of the loudspeaker;
step S112, detecting the amplitude and the current value of the driving signal, and calculating to obtain a quality factor value of the loudspeaker through a preset formula;
step S113 compares the quality factor value with a first preset value, and determines that the sound outlet of the speaker is blocked by a foreign object when a difference between the quality factor value and the first preset value is greater than or equal to the first preset difference value.
Wherein the first preset value is a quality factor of the loudspeaker in a normal stateValue QNWhen the quality factor value Q is equal to the first predetermined value QNSatisfies the following conditions: q is less than or equal to 0.8QNOr Q is more than or equal to 1.2QNWhen the sound outlet is blocked by the foreign matter, the loudspeaker can be judged.
In the step S13, the driving the speaker by the driving signal, controlling the speaker to generate a high-speed airflow, and removing the foreign matter by the high-speed airflow specifically includes:
step S131 of driving the speaker with the driving signal;
step S132, detecting the direct current resistance of the loudspeaker, and detecting the amplitude and the current value of the driving signal;
step S133, calculating a quality factor value of the loudspeaker through a preset formula;
step S134 compares the quality factor value with a first preset value, and stops generating the driving signal when a difference between the quality factor value and the first preset value is smaller than a third preset difference value.
In this step, after the foreign matter in the sound outlet hole is removed, the quality factor value of the loudspeaker is detected in real time to judge the removing effect of the foreign matter, when the foreign matter in the sound outlet hole is blown away by the high-speed airflow, the sound outlet area of the sound outlet hole is recovered to the normal state, and at the moment, the quality factor value Q of the loudspeaker and the quality factor value Q of the loudspeaker in the normal state are recovered to the normal stateNEqual or similar.
When 0.95QN≤Q≤1.05QNOr 0.95FN≤FO≤1.05FNAnd when the sound output area of the sound output hole is judged to be recovered to the normal state, the generation of the driving signal is stopped.
According to the method for removing the foreign matters in the loudspeaker, whether the foreign matters exist in the loudspeaker is judged according to the quality factor value, and the judgment is accurate; the loudspeaker is controlled to generate high-speed airflow, and foreign matters are removed through the high-speed airflow, so that the method is quick and effective, the reliability of the loudspeaker is improved, and the service life of the loudspeaker is prolonged.
Example two:
referring to fig. 4 to 6, the present embodiment provides a method for removing a foreign object from a speaker, which is applied to a mobile terminal, and mainly aims at a situation that a foreign object (such as water or dust) enters a speaker cavity, and the method includes:
step S41, detecting a quality factor value of the loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value;
step S42, when foreign matters exist in the loudspeaker, generating an ultrasonic driving signal, driving the loudspeaker through the ultrasonic driving signal, and atomizing water entering the loudspeaker cavity into water vapor;
wherein, the frequency of the ultrasonic driving signal is 42K +/-100 Hz.
Step S43, generating a driving signal with a preset frequency, wherein the difference value between the preset frequency and the system resonance frequency is smaller than a preset value;
wherein the preset frequency is 800 +/-100 Hz.
Step S44 is to drive the speaker by the driving signal, control the speaker to generate a high-speed airflow, and remove the foreign matter by the high-speed airflow.
Because the water quality is great, the high-speed airflow generated under the drive of the system resonant frequency signal can not blow away the water entering the loudspeaker cavity, and therefore the water is required to be firstly atomized into water vapor and then the water vapor is removed.
The step S41 of detecting a quality factor value of the speaker and determining whether a foreign object exists in the speaker according to the quality factor value includes:
step S411 is used for shielding the sound outlet hole of the loudspeaker;
step S412 is to generate an audio driving signal, the audio driving signal drives the loudspeaker to continuously work for a plurality of times, and the direct current resistance of the loudspeaker is detected;
step S413, detecting the amplitude and the current value of the transmitted signal, and calculating through a preset formula to obtain a cavity quality factor value of the loudspeaker;
step S414 compares the cavity quality factor value with a second preset value, and determines that a foreign object enters the cavity of the speaker when a difference between the cavity quality factor value and the second preset value is greater than or equal to the second preset difference value.
The second preset value is a cavity quality factor value Q of the loudspeaker in a normal stateN1, when the cavity quality factor value Q1 and the second preset value QN1 satisfies Q1 is less than or equal to 0.8QN1 or Q1 is not less than 1.2QN1, judging that foreign matters enter the cavity of the loudspeaker.
Since the original volume of the speaker chamber is known, the volume of the chamber can be calculated in step S41, so that it can be determined how much water enters the chamber, i.e. the duration of the ultrasonic driving signal.
Of course, in order to ensure that all water entering the cavity of the speaker is atomized into water vapor, as a preferred option, the step S42 is performed to generate an ultrasonic driving signal, the ultrasonic driving signal drives the speaker, and after the water entering the cavity of the speaker is atomized into water vapor, the method may further include:
step S42A is detecting a cavity quality factor value of the speaker, comparing the cavity quality factor value with a second preset value, and stopping the ultrasonic drive signal when a difference between the cavity quality factor value and the second preset value is smaller than the second preset difference value.
When 0.95QN1≤Q1≤1.05QNAnd 1, judging that the water in the loudspeaker cavity is completely atomized into water vapor, and stopping the ultrasonic driving signal.
Example three:
referring to fig. 7, the present embodiment provides a mobile terminal 700, including a speaker 701, and further including:
a detecting module 702, configured to detect a quality factor value of the speaker 701;
a determining module 703, configured to determine whether a foreign object exists in the speaker 701;
the driving module 704 is configured to generate a driving signal with a preset frequency to drive the speaker 201 to vibrate, so as to remove foreign matters in the speaker 701.
The detection simulation 702 includes:
the collecting module 7021 is configured to collect the dc resistance of the speaker 701, and collect the amplitude and the current value of the driving signal;
the operation module 7022 is configured to obtain a quality factor value of the speaker 701 through operation.
The operation module 7022 is further configured to calculate a cavity quality factor value of the speaker 701.
The driving module 704 is further configured to generate an ultrasonic driving signal to drive the speaker 701 to vibrate so as to atomize water entering the cavity of the speaker into water vapor.
The mobile terminal 700 provided in this embodiment can automatically test whether a foreign object exists in the speaker 701 without increasing additional cost, and can further automatically remove the foreign object; the performance of the speaker 701 is ensured, and a waterproof horn with high cost and low performance is avoided, so that the production cost of the mobile terminal 700 is reduced.
Example four:
referring to fig. 8, which is a schematic structural diagram of the mobile terminal provided in this embodiment, the mobile terminal 800 includes: at least one processor 801, a memory 802, a speaker system 803, and a user interface 804. The various components in the mobile terminal 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 5.
The speaker system 803 includes a speaker 8031, among other things.
The user interface 804 may include, among other things, a display or a pointing device (e.g., a touch-sensitive pad or touch screen, etc.).
It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and direct memory bus SDRAM (DRRAM). The memory 802 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 802 stores elements such as a subscriber identification card number, an executable module or data structure, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.
The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 8022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.
In the embodiment of the present invention, the program or the instruction stored in the memory 802 is called, and specifically, may be a program or an instruction stored in the application program 8022. The processor 801 is configured to detect a quality factor value of a speaker in the speaker system 803, and determine whether a foreign object exists in the speaker; the speaker system 803 is controlled to generate a driving signal of a predetermined frequency to drive the speaker to generate a high-speed airflow to remove the foreign matter. The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801.
The processor 801 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and combines the hardware to complete the steps of the method.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Specifically, the processor 801 is further configured to:
control the speaker system 803 to generate an audio drive signal to drive the speaker 8031; detecting the direct current resistance of the loudspeaker 8031, detecting the amplitude and the current value of the driving signal, and calculating to obtain a quality factor value of the loudspeaker 8031; the difference between the quality factor value and the first preset value is calculated to determine whether the sound outlet hole of the speaker 8031 is blocked by a foreign object.
Optionally, as another embodiment, the processor 801 is further configured to: control the speaker system 803 to generate an audio drive signal to drive the speaker 8031; detecting the direct current resistance of the loudspeaker 8031, detecting the amplitude and the current value of the driving signal, and calculating to obtain a cavity quality factor value of the loudspeaker 8031; and calculating the difference between the cavity quality factor value and the second preset value, and controlling the speaker system 803 to generate an ultrasonic driving signal to drive the speaker 8031 so as to atomize water entering the cavity of the speaker 8031 into water vapor.
The mobile terminal 800 described in this embodiment can automatically determine whether there is a foreign object in the speaker 8031 in the speaker system 803, and can automatically clear the foreign object when determining that the sound outlet hole of the speaker 8031 is blocked by the foreign object or that the foreign object enters the cavity of the speaker 8031, thereby ensuring the performance of the speaker 8031 and improving the audio playing effect.
The mobile terminal 800 may be a mobile phone, a tablet computer, a Personal Digital Assistant (PDA), or a vehicle-mounted computer. .
It will be clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be performed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (8)

1. A method for removing foreign matters in a loudspeaker is applied to a mobile terminal and is characterized by comprising the following steps:
detecting a quality factor value of a loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value;
when foreign matters exist in the loudspeaker, generating a driving signal with a preset frequency, wherein the difference value between the preset frequency and the system resonance frequency is smaller than a preset value;
driving the loudspeaker through the driving signal, controlling the loudspeaker to generate high-speed airflow, and removing the foreign matters through the high-speed airflow;
the method comprises the steps of detecting a quality factor value of a loudspeaker, and judging whether foreign matters exist in the loudspeaker according to the quality factor value, and specifically comprises the following steps:
shielding the sound outlet hole of the loudspeaker;
generating an audio driving signal, driving a loudspeaker to continuously work for a plurality of time by the audio driving signal, and detecting the direct current resistance of the loudspeaker;
detecting the amplitude and the current value of a sending signal, and calculating through a preset formula to obtain a cavity quality factor value of the loudspeaker;
and comparing the cavity quality factor value with a second preset value, and judging that foreign matters enter the cavity of the loudspeaker when the difference value between the cavity quality factor value and the second preset value is greater than or equal to the second preset difference value.
2. The method of claim 1, wherein before the step of generating a driving signal at a preset frequency when a foreign object is present in the speaker, the preset frequency having a difference from a system resonance frequency that is less than a preset value, further comprising:
when foreign matters exist in the loudspeaker, ultrasonic driving signals are generated, the loudspeaker is driven by the ultrasonic driving signals, and water entering the loudspeaker cavity is converted into water vapor.
3. The method of claim 2, wherein after the step of generating an ultrasonic drive signal, driving the speaker with the ultrasonic drive signal, and atomizing water entering a speaker chamber into water vapor, further comprising:
and detecting a cavity quality factor value of the loudspeaker, comparing the cavity quality factor value with a second preset value, and stopping generating the ultrasonic driving signal when the difference value between the cavity quality factor value and the second preset value is smaller than the second preset difference value.
4. The method according to any one of claims 1 to 3, wherein the step of driving the speaker by the driving signal, controlling the speaker to generate a high-speed airflow, and removing the foreign matter by the high-speed airflow comprises:
driving the loudspeaker with the drive signal,
detecting the direct current resistance of the loudspeaker and the amplitude and current value of the driving signal;
calculating the quality factor value of the loudspeaker through a preset formula,
and comparing the quality factor value with a first preset value, and stopping generating the driving signal when the difference value between the quality factor value and the first preset value is smaller than a third preset difference value.
5. A mobile terminal comprising a speaker, characterized by further comprising:
the detection module is used for detecting the quality factor value of the loudspeaker;
the judging module is used for judging whether foreign matters exist in the loudspeaker or not;
and the driving module is used for generating a driving signal with preset frequency to drive the loudspeaker to vibrate so as to remove foreign matters in the loudspeaker.
6. The mobile terminal of claim 5, wherein the detection simulation comprises:
the acquisition module is used for acquiring the direct current resistance of the loudspeaker and acquiring the amplitude and the current value of the driving signal;
and the operation module is used for obtaining the quality factor value of the loudspeaker through operation.
7. The mobile terminal of claim 6, wherein the computing module is further configured to compute a cavity quality factor value of the speaker.
8. The mobile terminal of claim 7, wherein the driving module is further configured to generate an ultrasonic driving signal to drive the speaker to vibrate so as to atomize water entering the speaker cavity into water vapor.
CN201710112980.8A 2017-02-28 2017-02-28 Method for removing foreign matters in loudspeaker and mobile terminal Active CN106792423B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710112980.8A CN106792423B (en) 2017-02-28 2017-02-28 Method for removing foreign matters in loudspeaker and mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710112980.8A CN106792423B (en) 2017-02-28 2017-02-28 Method for removing foreign matters in loudspeaker and mobile terminal

Publications (2)

Publication Number Publication Date
CN106792423A CN106792423A (en) 2017-05-31
CN106792423B true CN106792423B (en) 2020-04-14

Family

ID=58960069

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710112980.8A Active CN106792423B (en) 2017-02-28 2017-02-28 Method for removing foreign matters in loudspeaker and mobile terminal

Country Status (1)

Country Link
CN (1) CN106792423B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107529105B (en) * 2017-08-03 2019-09-20 青岛海信移动通信技术股份有限公司 The method and mobile terminal that Mike in a kind of pair of mobile terminal is dusted
CN107509153B (en) * 2017-08-18 2020-01-14 Oppo广东移动通信有限公司 Detection method and device of sound playing device, storage medium and terminal
CN109698989B (en) * 2018-12-28 2019-11-12 出门问问信息科技有限公司 A kind of loudspeaker water discharge method and device
CN110830861B (en) * 2019-10-23 2021-09-10 维沃移动通信有限公司 Telephone receiver control method and device and electronic equipment
CN111314837A (en) * 2020-02-19 2020-06-19 上海闻泰信息技术有限公司 Anti-blocking method, device, equipment and storage medium for sound outlet of sound production device
CN112594862A (en) * 2020-10-29 2021-04-02 青岛海信日立空调系统有限公司 Air pipe type air conditioner indoor unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501375A (en) * 2013-09-16 2014-01-08 华为终端有限公司 Method and device for controlling sound effect
CN203446017U (en) * 2013-09-06 2014-02-19 歌尔声学股份有限公司 Loudspeaker module dedusting system
CN203984679U (en) * 2014-07-18 2014-12-03 歌尔声学股份有限公司 Microspeaker
CN104285310A (en) * 2012-03-14 2015-01-14 佳能株式会社 Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104285310A (en) * 2012-03-14 2015-01-14 佳能株式会社 Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
CN203446017U (en) * 2013-09-06 2014-02-19 歌尔声学股份有限公司 Loudspeaker module dedusting system
CN103501375A (en) * 2013-09-16 2014-01-08 华为终端有限公司 Method and device for controlling sound effect
CN203984679U (en) * 2014-07-18 2014-12-03 歌尔声学股份有限公司 Microspeaker

Also Published As

Publication number Publication date
CN106792423A (en) 2017-05-31

Similar Documents

Publication Publication Date Title
CN106792423B (en) Method for removing foreign matters in loudspeaker and mobile terminal
CN103871051B (en) Image processing method, device and electronic equipment
CN106303804B (en) A kind of control method and mobile terminal of microphone
US11069343B2 (en) Voice activation method, apparatus, electronic device, and storage medium
CN105827825A (en) Audio data processing method and mobile terminal
CN106412282B (en) A kind of real-time messages phonetic prompt method and mobile terminal
CN103631375B (en) According to the method and apparatus of the Situation Awareness control oscillation intensity in electronic equipment
CN106101929A (en) A kind of protection human ear audition method and mobile terminal
CN106454456A (en) Video playing control method and mobile terminal
CN106341535A (en) Audio playing control method and mobile terminal
CN104363205A (en) Application login method and device
CN106060710B (en) A kind of audio-frequency inputting method and electronic equipment
CN106092058A (en) The processing method of information data, device and terminal
CN106331509A (en) Photographing method and mobile terminal
CN109684839A (en) Self-definition model tamper resistant method, device, terminal device and storage medium
CN104572007A (en) Method for adjusting sound volume of terminal
CN109040919A (en) Vocal technique, device, electronic device and computer-readable medium
CN106208206B (en) A kind of wireless charging method and mobile terminal
CN108984234B (en) Calling prompt method for mobile terminal and camera device
CN103809911A (en) Method and system for setting vibration modes of mobile terminal
CN105224074A (en) A kind of control method and electronic equipment
CN111314837A (en) Anti-blocking method, device, equipment and storage medium for sound outlet of sound production device
CN106385508A (en) Information display method and mobile terminal
CN106126171A (en) A kind of sound effect treatment method and mobile terminal
CN106792342B (en) A kind of electronic equipment waterproof method, electronic equipment and protection circuit

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant