CN114518495A - Method and terminal for detecting board noise - Google Patents

Abstract

Embodiments of the present invention relate to the technical field of terminals, and in particular, to a method and terminal for detecting board noise. The terminal includes a main board, at least two microphones, and at least two sound-receiving holes, one of the sound-receiving holes communicates one of the microphones with the outside world , the method first makes the signal receiving part of the microphone and the space where the main board is located in the same closed space, and then acquires at least two recording signals of the at least two microphones, and finally, according to the at least two recording signals and The positions of the at least two microphones determine the position of the capacitive noise on the main board. That is, in this method, the terminal is sealed to isolate the noise in the external environment, so that at least two recording signals collected by at least two microphones are generated inside the terminal. Capacitive noise can be located, making the method fast, accurate, and simple.

Description

Method and terminal for detecting board noise

technical field

Embodiments of the present invention relate to the technical field of terminals, and in particular, to a method and terminal for detecting board noise.

Background technique

With the increasing popularity of terminals, especially the development of smart phones, users have higher and higher requirements for smart phones, and are particularly concerned about the noise of mobile phones. Generally, mobile phone noise is generated by the chip ceramic capacitor on the internal motherboard. For example, when the mobile phone RF unit sends a GSM signal, the ceramic capacitor will draw a large amount of current from the power supply terminal, pull the voltage down, and form a 217Hz periodic pattern When the ripple reaches a certain level, the motherboard will be forced to vibrate with the expansion and contraction of the ceramic capacitor, resulting in board noise. " noise.

In order to eliminate the capacitor noise, it is necessary to first find the capacitor that generates the noise, that is, to determine the position of the capacitor noise on the motherboard, and then perform subsequent processing. At present, the existing capacitive noise diagnosis methods usually use human hearing to make subjective judgments, and the positioning is not accurate. and inconvenient.

SUMMARY OF THE INVENTION

The main technical problem solved by the embodiments of the present invention is to provide a method and a terminal for detecting board noise, which can conveniently and accurately locate the position of the capacitive noise.

In order to solve the above technical problems, in the first aspect, the embodiments of the present invention provide a method for detecting board noise, which is applied to a terminal, where the terminal includes a main board, at least two microphones, and at least two sound-receiving holes. The sound-receiving hole communicates one of the microphones with the outside world, and the method includes:

Make the signal receiving part of the microphone and the space where the motherboard is located in the same closed space;

acquiring at least two recording signals of the at least two microphones;

According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined.

In some embodiments, making the signal receiving part of the microphone and the space where the main board are located in the same closed space include:

The sound-receiving hole corresponding to the microphone is sealed with a detachable first sealing material.

In some embodiments, the first sealing material is a sealing film.

In some embodiments, making the signal receiving part of the microphone and the space where the motherboard is located in the same closed space, further includes:

Remove the partition between the space where the main board is located and the signal receiving part of the microphone.

In some embodiments, the separator is a second sealing material.

In some embodiments, the second sealing material is soundproof foam.

In some embodiments, determining the position of the capacitive noise on the main board according to the at least two recording signals and the positions of the at least two microphones includes:

acquiring at least one delay difference between the at least two recording signals;

The position of the capacitive noise on the main board is determined according to the at least one delay difference and the positions of the at least two microphones.

In order to solve the above technical problem, in a second aspect, an embodiment of the present invention provides a terminal, including:

a mainboard, at least two microphones and at least two sound-receiving holes, one of the sound-receiving holes communicates one of the microphones with the outside world;

a processor in communication with the at least two microphones;

a memory communicatively coupled to the processor, wherein,

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to execute:

Acquiring at least two recording signals of the at least two microphones, wherein the signal receiving part of the microphones and the space where the main board is located are in the same closed space;

According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined.

In some embodiments, the at least one processor further specifically performs:

acquiring at least one delay difference between the at least two recording signals;

The position of the capacitive noise on the main board is determined according to the at least one delay difference and the positions of the at least two microphones.

In order to solve the above technical problem, in a third aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer-executable instructions, and the computer can The execute command is used to cause the terminal to execute:

Acquiring at least two recording signals of the at least two microphones, wherein the signal receiving part of the microphones and the space where the main board is located are in the same closed space;

According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined.

Beneficial effects of the embodiments of the present invention: Different from the situation in the prior art, the method for detecting board noise provided by the embodiments of the present invention is applied to a terminal, where the terminal includes a main board, at least two microphones, and at least two sound-receiving holes. The sound-receiving hole communicates one of the microphones with the outside world. First, the signal receiving part of the microphone and the space where the main board is located are in the same closed space, and then at least two recording signals of the at least two microphones are obtained, and finally, According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined. That is, in this method, the terminal is sealed to isolate the noise in the external environment, so that at least two recording signals collected by at least two microphones are generated inside the terminal. The location of capacitive noise can be determined, making the method fast, accurate, simple and convenient.

Description of drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings, and these exemplifications do not constitute limitations of the embodiments, and elements with the same reference numerals in the drawings are denoted as similar elements, Unless otherwise stated, the figures in the accompanying drawings do not constitute a scale limitation.

1 is a schematic diagram of a hardware structure of a terminal according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a method for detecting board noise according to an embodiment of the present invention;

Fig. 3 is a sub-flow schematic diagram of step S21 in the method shown in Fig. 2;

Fig. 4 is another sub-flow schematic diagram of step S21 in the method shown in Fig. 2;

FIG. 5 is a schematic diagram of a sub-flow of step S23 in the method shown in FIG. 2 .

Detailed ways

The present invention will be described in detail below with reference to specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that, if there is no conflict, various features in the embodiments of the present invention may be combined with each other, which are all within the protection scope of the present application. In addition, although the functional modules are divided in the schematic diagram of the device, and the logical sequence is shown in the flowchart, in some cases, the modules in the device may be divided differently, or the sequence shown in the flowchart may be performed. or the described steps. In addition, the words "first", "second" and "third" used herein do not limit the data and execution order, but only distinguish the same or similar items with substantially the same function and effect.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the technical field of the present invention. The terms used in the description of the present invention in this specification are only for the purpose of describing specific embodiments, and are not used to limit the present invention. As used in this specification, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

The mobile terminal may be implemented in various forms. For example, the mobile terminals described in the present invention may include mobile phones, tablet computers, notebook computers, palmtop computers, personal digital assistants, portable media players, wearable devices, smart bracelets, and the like.

Please refer to FIG. 1 , which is a schematic diagram of a hardware structure of a terminal for implementing various embodiments of the present invention. The mobile terminal 100 may include: at least one processor 101 , a memory 102 , an RF (Radio Frequency, radio frequency) unit 104 , and a sensor Components 103, WiFi module 105, audio output unit 106, A/V (audio/video) input unit 107, power supply 108 and other components. Those skilled in the art can understand that the structure of the mobile terminal 100 shown in FIG. 1 does not constitute a limitation on the mobile terminal, and the mobile terminal may include more or less components than the one shown, or combine some components, or different component layout.

Below in conjunction with Fig. 1, each component of the mobile terminal is introduced in detail:

The radio frequency unit 104 can be used for sending and receiving short messages or receiving and sending signals during a call. Specifically, after receiving the downlink information of the base station, it is processed by the processor; in addition, the uplink data is sent to the base station. Typically, the radio frequency unit 104 includes, but is not limited to, at least two antennas, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. Wherein, the at least two antennas are arranged in different directions of the mobile terminal 100 , for example, arranged on the upper and lower sides and the left and right sides of the mobile terminal 100 .

In addition, the radio frequency unit 104 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communication can use any communication label or communication protocol, including but not limited to GSM (Global System of Mobilecommunication, Global System for Mobile Communications), GPRS (General Packet Radio Service, General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000) , Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution, Frequency Division Duplexing Long Term Evolution) and TDD-LTE (Time Division Deplexing-Long Term Evolution, time-sharing duplex long-term evolution) and so on.

The WiFi module 105 belongs to the short-distance wireless transmission technology, and the mobile terminal 100 can help users to send and receive emails, browse web pages, access streaming media, etc. through the WiFi module 105, which provides users with wireless broadband Internet access. Although FIG. 1 shows the WiFi module 105, it can be understood that it is not a necessary component of the mobile terminal 100, and can be completely omitted within the scope of not changing the essence of the present invention as required.

The audio output unit 106 can output the audio received by the radio frequency unit 104 or the WiFi module 105 or stored in the memory 102 when the mobile terminal 100 is in a call signal receiving mode, a talking mode, a recording mode, a voice recognition mode, a broadcast receiving mode, etc. The data is converted into audio signals and output as sound. Also, the audio output unit 106 may also provide audio output related to a specific function performed by the mobile terminal 100 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 106 may also include a speaker, a buzzer, and the like.

The A/V input unit 107 is used to receive audio or video signals. The A/V input unit 107 may include an image processor 1071 (Graphics Processing Unit, GPU) and at least two microphones 1072, and the image processor 1071 is capable of pairing the data obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. Still images or video image data for processing. The processed image frame may be displayed on the display unit 111 . The image frames processed by the image processor 1071 may be stored in the memory 102 or transmitted via the radio frequency unit 104 or the WiFi module 105 . The at least two microphones 1072 can receive sound (audio data) via the microphones in a phone call mode, a recording mode, a voice recognition module, etc. operating modes, and can process such sounds into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 104 for output in the case of a telephone conversation mode. The microphone 1072 may implement various types of noise cancellation (or suppression) algorithms to remove (or suppress) noise or interference generated in the process of receiving and transmitting audio signals.

The mobile terminal 100 further includes a sensor component 103, for example, the sensor component 103 includes a motion sensor, a gyroscope, an acceleration sensor, a gravity sensor, a capacitance sensor, and the like. Specifically, as a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used for applications that recognize the posture of mobile phones (such as horizontal and vertical screens). Switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc. The mobile terminal may also be configured with a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which will not be repeated here.

The display unit 120 is used to display information input by the user or information provided to the user. The display unit 120 includes a display panel 121, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.

The user input unit 110 is used to receive input numerical or character information, and generate key signal input related to user settings and function control of the mobile terminal 100 . Specifically, the user input unit 110 includes a touch panel 111 and other input devices 112 . The touch panel 111, also referred to as a touch screen, can collect the user's touch operations on it (such as the user's operations on the touch panel with fingers, stylus, and any other suitable objects or accessories), and perform operations on the touch panel according to a preset program. Activate the corresponding connection device. The touch panel 111 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch orientation of the user, detects the signal brought by the touch operation, and transmits the signal to the touch controller. The touch controller receives touch information from the touch detection device, converts it into contact coordinates, and sends it to the processor, and can receive and execute commands sent by the processor. In addition, various types of resistive, capacitive, infrared, and surface acoustic waves can be used to realize the touch panel. Besides the touch panel 111 , the user input unit 110 may also include other input devices 112 . Specifically, other input devices may include, but are not limited to, physical keys, function keys, and the like.

Further, the touch panel 111 may cover the display panel 121, and when the touch panel 111 detects a touch operation on it, it transmits it to the processor 101 to determine the type of the touch event, and then the processor 101 displays the touch event according to the type of the touch event. Corresponding visual outputs are provided on panel 121 . Although in FIG. 1, the touch panel 111 and the display panel 121 are used as two independent components to realize the input and output functions of the mobile terminal 100, in some embodiments, the touch panel 111 and the display panel 121 may be The input and output functions of the mobile terminal 100 are implemented through integration, which is not specifically limited here.

The interface unit 108 serves as an interface through which at least one external device can be connected to the mobile terminal 100 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) port, video I/O port, headphone port, etc. The interface unit 108 may be used to receive input (eg, power, data, etc.) from an external device and transmit the received input to one or more elements within the mobile terminal 100 or may be used between the mobile terminal 100 and the external device. transfer data between.

The processor 101 is used to provide computing and control capabilities, and is the control center of the mobile terminal 100. Various interfaces and lines are used to connect various parts of the entire mobile terminal 100. For example, the processor 101 and the at least two The microphone is connected, and by running or executing software programs and/or modules stored in the memory 102 and calling data stored in the memory 102, various functions of the mobile terminal 100 and processing data can be performed, and the mobile terminal 100 can be integrated monitor.

As a non-transitory computer-readable storage medium, the memory 102 can be used to store non-transitory software programs, non-transitory computer-executable programs and modules, such as programs corresponding to the method for clearing short messages in the embodiment of the present invention. Directive/Module. The processor 101 can implement the method for clearing short messages in any of the following method embodiments by running the non-transitory software programs, instructions and modules stored in the memory 102 . Specifically, the memory 102 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system and an application layer sequence required for at least one function (such as a sound playback function, an image playback function, a short message management function, etc.) ; The storage data area can store data created according to the use of the mobile terminal (such as audio data, phone book, SMS management records) and the like. Additionally, memory 102 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.

The mobile terminal 100 may also include a power supply 109 (such as a battery) for supplying power to various components. Preferably, the power supply may be logically connected to the processor through a power management system, so that the management of charging, discharging, and power consumption management, etc. can be realized through the power management system. Function.

In some embodiments, the terminal further includes a main board and a housing. The above units that require electricity can be installed on the main board, wherein the main board is a PCB board, and the PCB board is also provided with a plurality of capacitors, resistors and connecting lines, which provide a circuit basis for the above units that require electricity. For example, a radio frequency unit (not shown) and at least two microphones 1072 are soldered to appropriate positions on the PCB. The casing and the touch panel (not shown in the figure) form an accommodating cavity, and the main board, the units and batteries on the main board are all packaged in the accommodating cavity. It can be understood that at least two sound-receiving holes are provided on the outer casing, and one of the sound-receiving holes connects one of the microphones 1072 with the outside world, so that the microphone 1072 can collect the user's voice and process it into audio data. .

When the terminal is powered on, the capacitor stretches to generate noise. For example, when a ceramic capacitor transmits a GSM signal in the mobile phone RF unit, it will draw a large amount of current from the power supply terminal, pull the voltage down, and form a periodic ripple of 217Hz. When the ripple reaches To a certain extent, the motherboard will be forced to vibrate with the expansion and contraction of the ceramic capacitor, resulting in board noise. When the vibration frequency is within the human audible frequency range (20Hz-20KHz), the human will hear a "squeak" noise.

In order to locate the position of the capacitive noise, based on the hardware structure of the above terminal, various embodiments of the method of the present invention are proposed and applied to the above terminal.

Please refer to FIG. 2 , which is a flowchart of an embodiment of a method for detecting board noise provided by the present application. The method S20 includes but is not limited to the following steps:

S21: Make the signal receiving part of the microphone and the space where the motherboard is located in the same closed space.

S22: Acquire at least two recording signals of the at least two microphones.

S23: Determine the position of the capacitive noise on the main board according to the at least two recording signals and the positions of the at least two microphones.

First, the signal receiving part of the microphone and the space where the main board is located are in the same closed space, that is, the terminal is sealed to isolate the sound in the external environment, so that the recording signal received by the microphone is generated inside the terminal.

When noise is generated by the expansion and contraction of the capacitor on the main board of the terminal, each of the microphones can collect the noise and generate corresponding recording signals, so that at least two recording signals of the at least two microphones can be obtained.

Finally, according to the at least two recording signals and the positions of the at least two microphones, the position of the capacitive noise on the main board is determined. For example, according to the two recording signals and the two microphones, the position of the capacitive noise on the main board is determined based on the existing binaural positioning principle. Alternatively, according to the three recording signals and the three microphones, based on the existing Time Difference of Arrival (TDOA) algorithm, the position of the capacitive noise on the main board is determined.

In this embodiment, the method isolates the noise in the external environment by sealing the terminal, so that at least two recording signals collected by the at least two microphones are generated inside the terminal, and then, according to the sound source of the dual microphones The positioning principle can determine the position of the capacitive noise, which makes the method fast, accurate and simple.

In some embodiments, referring to FIG. 3 , the step S21 specifically includes:

S211: Seal the sound-receiving hole corresponding to the microphone with a detachable first sealing material.

Among them, the terminal is in an assembled state, that is, components such as a back cover, a battery or a touch screen are not removed, which is beneficial to imitate the actual working state. The sound-receiving hole corresponding to the microphone is sealed by the first sealing material. On the one hand, it prevents outside sound from entering and interferes with the capacitor noise. On the other hand, it can effectively prevent the leakage of the capacitor noise and avoid weak recording signals collected by the microphone. Affect positioning. For example, if the terminal has three microphones, each microphone corresponds to a sound-receiving hole, and the three sound-receiving holes are all sealed by the first sealing material, so that the terminal can be completely sealed.

It can be understood that, in some embodiments, the first sealing material is a sealing film. Using a detachable sealing film to seal the sound-receiving hole can achieve a better sealing effect and facilitate disassembly.

In some embodiments, referring to FIG. 4 , the step S21 further specifically includes:

S212: Remove the partition between the space where the main board is located and the signal receiving part of the microphone.

In this embodiment, the space where the main board is located is separated from the signal of the microphone. On the one hand, it is convenient for the microphone to receive external sounds, such as the voice of a call, and on the other hand, it prevents the components on the internal main board from working during a call. The resulting noise enters the microphone and affects the quality of the call. Therefore, when locating the capacitive noise, in order to transmit the capacitive noise to the signal receiving part of the microphone, the partition between the space where the main board is located and the microphone is removed. When the partition between the space where the main board is located and the microphone is removed, the space where the main board is located and the signal receiving part of the microphone are connected, and the capacitive noise will be transmitted to the signal receiving part through the air.

The microphone is welded on one side of the end of the main board, the main board is provided with a through hole, the through hole is communicated with the sound receiving hole, and the signal receiving part of the microphone is located above the through hole, so that the The signal receiving part of the microphone can receive external sound. In addition, a partition is provided on the other side of the end of the main board opposite to the microphone, and the partition separates the space where the main board is located from the signal receiving part of the microphone. When the terminal is in normal use, the partition can isolate the noise generated inside the terminal, such as board noise, so as to avoid affecting the call quality. When the board noise is detected, the partition is removed so that the board noise can be collected by the microphone.

In some embodiments, the spacer is a second sealing material, which fills and seals the gap between the main board and other components of the terminal. It can be understood that, in some embodiments, the second sealing material is sound insulation foam.

In this embodiment, the sound-receiving hole corresponding to the microphone is first sealed with a detachable first sealing material, and then the partition between the space where the main board is located and the signal receiving part of the microphone is removed, so that The signal receiving part of the microphone and the space where the main board is located can be located in the same closed space, which is simple and convenient, and can also prevent external sound interference and board noise from leaking out.

In some embodiments, referring to FIG. 5 , the step S23 specifically includes:

S231: Acquire at least one delay difference between the at least two recording signals.

S232: Determine the position of the capacitive noise on the main board according to the at least one delay difference and the positions of the at least two microphones.

The delay difference refers to the time difference between when two microphones receive the same sound source and when the recording signal is received. It can be understood that, for example, if the same capacitor emits noise, since the distances of the microphones relative to the capacitor are different and the noise propagates in the air, the arrival times of the microphones are inconsistent. The time difference between the two microphones is the delay difference.

According to the at least one delay difference and the positions of the at least two microphones, the position of the capacitive noise on the main board can be determined. For example, according to the existing Time Difference of Arrival (TDOA) algorithm, by measuring the time difference between the sound signals arriving at different microphones, and converting the time difference between the two microphones into a distance difference, a hyperbola can be obtained. The time difference between three or more microphones can obtain two or more hyperbolas, and the intersection point of the two or more hyperbolas is the position of the capacitive noise. It can be understood that, in some embodiments, the purpose of positioning can also be achieved by estimating the energy ratio and delay difference of the capacitive noise reaching the two microphones at the same time by using the existing binaural positioning principle.

In this embodiment, the capacitance noise is located in the above manner, the algorithm is simple, and the position of the capacitance noise can be quickly determined.

An embodiment of the present invention further provides a terminal, including a main board, at least two microphones, and at least two sound-receiving holes, wherein one of the sound-receiving holes communicates one of the microphones with the outside world;

a processor in communication with the at least two microphones;

a memory communicatively coupled to the processor, wherein,

The memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor:

Acquiring at least two recording signals of the at least two microphones, wherein the signal receiving part of the microphones and the space where the main board is located are in the same closed space;

According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined.

When noise is generated by the expansion and contraction of the capacitor on the main board of the terminal, each of the microphones can collect the noise and generate corresponding recording signals, so that at least two recording signals of the at least two microphones can be obtained.

Then, according to the at least two recording signals and the positions of the at least two microphones, the position of the capacitive noise on the main board is determined. For example, according to the two recording signals and the two microphones, the position of the capacitive noise on the main board is determined based on the existing binaural positioning principle. Alternatively, according to the three recording signals and the three microphones, based on the existing Time Difference of Arrival (TDOA) algorithm, the position of the capacitive noise on the main board is determined.

In some embodiments, the at least one processor further specifically performs:

acquiring at least one delay difference between the at least two recording signals;

The position of the capacitive noise on the main board is determined according to the at least one delay difference and the positions of the at least two microphones.

The terminal obtains at least two recording signals of the at least two microphones, wherein the signal receiving part of the microphones and the space where the main board is located are in the same closed space, so as to isolate the noise in the external environment, so that the at least two microphones The collected at least two recording signals are generated inside the terminal, and then the position of the capacitive noise can be determined according to the principle of dual-mic sound source localization, which makes the method fast, accurate and simple.

Embodiments of the present invention also provide a non-transitory computer-readable storage medium, where the non-transitory computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are executed by one or more processors, such as A processor 101 in FIG. 1 can cause the above-mentioned one or more processors to execute:

Acquiring at least two recording signals of the at least two microphones, wherein the signal receiving part of the microphones and the space where the main board is located are in the same closed space;

According to the positions of the at least two recording signals and the at least two microphones, the position of the capacitive noise on the main board is determined.

It should be noted that the device embodiments described above are only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physically separated unit, that is, it can be located in one place, or it can be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

From the description of the above embodiments, those of ordinary skill in the art can clearly understand that each embodiment can be implemented by means of software plus a general hardware platform, and certainly can also be implemented by hardware. Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and the program is During execution, it may include the processes of the embodiments of the above-mentioned methods. The storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM) or the like.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; under the idea of the present invention, the technical features in the above embodiments or different embodiments can also be combined, The steps may be carried out in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity; although the invention has been The skilled person should understand that it is still possible to modify the technical solutions recorded in the foregoing embodiments, or to perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the implementation of the present invention. scope of technical solutions.

Claims (10)

1. A method for detecting board noise is applied to a terminal, and is characterized in that the terminal comprises a mainboard, at least two microphones and at least two sound receiving holes, one sound receiving hole is used for communicating one microphone with the outside, and the method comprises the following steps:

enabling a signal receiving part of the microphone and the space where the mainboard is located to be in the same sealed space;

acquiring at least two recording signals of the at least two microphones;

and determining the position of the capacitive noise on the mainboard according to the at least two recording signals and the positions of the at least two microphones.

2. The method according to claim 1, wherein the making the signal receiving part of the microphone and the space where the main board is located in the same sealed space comprises:

and sealing the sound receiving hole corresponding to the microphone by using a detachable first sealing material.

3. The method of claim 2, wherein the first sealing material is a sealing film.

4. The method according to claim 2, wherein the making the signal receiving part of the microphone and the space where the main board is located in the same sealed space further comprises:

and removing a partition between the space where the main board is located and the signal receiving part of the microphone.

5. The method of claim 4, wherein the separator is a second sealing material.

6. The method of claim 5, wherein the second sealing material is acoustic foam.

7. The method of claim 1, wherein determining the location of the capacitive noise on the motherboard from the at least two recorded sound signals and the locations of the at least two microphones comprises:

acquiring at least one delay difference between the at least two sound recording signals;

and determining the position of the capacitive noise on the mainboard according to the at least one delay difference and the positions of the at least two microphones.

8. A terminal, comprising:

the microphone comprises a main board, at least two microphones and at least two sound receiving holes, wherein one sound receiving hole is used for communicating one microphone with the outside;

a processor in communicative connection with the at least two microphones;

a memory communicatively coupled to the processor, wherein,

the memory stores instructions executable by the at least one processor to cause the at least one processor to perform:

acquiring at least two recording signals of the at least two microphones, wherein the signal receiving parts of the microphones and the space where the mainboard is located are in the same closed space;

and determining the position of the capacitive noise on the mainboard according to the at least two recording signals and the positions of the at least two microphones.

9. The terminal of claim 8, wherein the at least one processor further performs:

acquiring at least one delay difference between the at least two sound recording signals;

and determining the position of the capacitive noise on the mainboard according to the at least one delay difference and the positions of the at least two microphones.

10. A non-transitory computer-readable storage medium storing computer-executable instructions for causing a terminal to perform:

acquiring at least two recording signals of the at least two microphones, wherein the signal receiving parts of the microphones and the space where the mainboard is located are in the same closed space;

and determining the position of the capacitive noise on the mainboard according to the at least two recording signals and the positions of the at least two microphones.

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