CN117437901A

CN117437901A - In-vehicle resonance noise control method and system, electronic equipment and vehicle

Info

Publication number: CN117437901A
Application number: CN202311189056.1A
Authority: CN
Inventors: 海陆空
Original assignee: FAW Group Corp
Current assignee: FAW Group Corp
Priority date: 2023-09-15
Filing date: 2023-09-15
Publication date: 2024-01-23

Abstract

The invention discloses a method, a system, electronic equipment and a vehicle for controlling resonance noise in a vehicle, wherein the method comprises the following steps: collecting an audio signal by using vehicle-mounted equipment, and identifying resonance noise; performing feature extraction and analysis on the identified resonance noise, and matching the results of the feature extraction and analysis in a predefined interior trim resonance frequency range; and judging the correlation between the audio frequency point and the resonance noise according to the matching result, and avoiding the frequency point of the resonance noise by changing the audio output mode for reducing the resonance noise. The invention firstly collects the audio signal in the vehicle by using the vehicle-mounted equipment, carries out resonance noise identification on the collected audio signal, extracts the characteristics and analyzes the characteristics, matches the provided characteristics and the analyzed result in a predefined interior trim resonance frequency range, finds the correlation between the audio frequency point and the resonance noise, and can avoid the frequency point of the resonance noise by changing the audio output mode, thereby reducing the resonance noise.

Description

In-vehicle resonance noise control method and system, electronic equipment and vehicle

Technical Field

The present invention relates to a noise control method, system, electronic device, and vehicle, and more particularly to a method, system, electronic device, and vehicle for controlling resonance noise in a vehicle.

Background

Active noise reduction and passive noise reduction technologies are all existing automobile noise control technologies, and have the main effects of reducing the influence of the noise in the interior and exterior of the automobile and improving the driving and riding comfort in the automobile.

The passive noise reduction technology mainly adopts a sound insulation material to reduce the transmission of noise inside and outside the vehicle. For example, special sound insulation materials may be used to reduce the transmission of road noise and wind noise, special tires and brakes may be used to reduce the noise generated by tires and brakes, and the like. However, this method has disadvantages in that the weight and cost of the vehicle are increased, and no effect is produced on noise in a specific frequency range.

The active noise reduction technology mainly adopts a mode of reverse acoustic interference to reduce the influence of noise inside and outside the vehicle. Specifically, the active noise reduction technology detects noise in a vehicle in real time through a system consisting of a microphone and a loudspeaker, and counteracts the noise by emitting reverse sound waves. This approach can reduce noise in a specific frequency range, but requires precise control of the emission and reflection of sound waves to avoid unnecessary noise from the reverse sound waves.

However, these prior art techniques do not effectively address the problem of resonance noise generated by music in automobiles. The automobile has a narrow space, the material and the structure of each part of the automobile body are large in difference, resonance phenomenon is easy to generate, and particularly, when high-volume music is played, the interior resonance noise brought by the music can cause bad feeling to drivers and passengers. Therefore, a new technology capable of recognizing and processing resonance noise in an automobile is required.

Disclosure of Invention

The invention aims to provide a method, a system, electronic equipment and a vehicle for controlling resonance noise in a vehicle, which are used for identifying and analyzing the resonance noise in an audio signal in the vehicle, matching and processing the resonance noise, reducing the resonance noise and solving the defects existing in the prior art.

The invention provides the following scheme:

an in-vehicle resonance noise control method, comprising:

collecting an audio signal by using vehicle-mounted equipment, and identifying resonance noise;

performing feature extraction and analysis on the identified resonance noise, and matching the results of the feature extraction and analysis in a predefined interior trim resonance frequency range;

and judging the correlation between the audio frequency point and the resonance noise according to the matching result, and avoiding the frequency point of the resonance noise by changing the audio output mode for reducing the resonance noise.

Further, the vehicle-mounted device is used for collecting the audio signals, and particularly, a microphone array type is used for collecting the audio signals.

Further, the feature extraction and analysis of the identified resonance noise specifically includes: and determining corresponding audio frequency points and amplitudes according to the extracted resonance noise characteristics and the vehicle speed information.

Further, a feedback mechanism is also included: the in-vehicle resonance noise is continuously monitored, and noise signals before and after the reduction of the resonance noise are compared to evaluate the reduction effect of the resonance noise.

Further, the sound source output intensity is determined based on the result of comparing the noise signals before and after the reduction of the resonance noise, and based on the result of whether the resonance noise can be controlled within + -5 Hz, whether the sound source output intensity is controlled by changing the volume level is determined.

Further, the resonant noise identification further includes: the results of the feature extraction and analysis are matched in a predefined interior trim resonance frequency range, in particular, the method is used for analyzing the amplitude and the frequency spectrum characteristics of a resonance noise signal and determining the intensity and the distribution condition of the resonance noise.

An in-vehicle resonance noise control system specifically includes:

the resonance noise acquisition and identification module acquires an audio signal by using vehicle-mounted equipment and carries out resonance noise identification;

the resonance noise characteristic extraction and analysis module is used for carrying out characteristic extraction and analysis on the identified resonance noise and matching the results of the characteristic extraction and analysis in a predefined interior trim resonance frequency range;

and the resonance noise reduction module is used for judging the correlation between the audio frequency point and the resonance noise according to the matching result, avoiding the frequency point of the resonance noise by changing the audio output mode and reducing the resonance noise.

An electronic device, comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; the memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the method.

A computer readable storage medium storing a computer program executable by an electronic device, which when run on the electronic device causes the electronic device to perform the steps of the method.

A vehicle specifically includes:

electronic equipment for use in the method;

a processor running a program, which when run, performs the steps of the method on data output from the electronic device;

a storage medium for storing a program which, when run, performs the steps of the method on data output from an electronic device.

Compared with the prior art, the invention has the following advantages:

the invention firstly collects the audio signal in the vehicle by using the vehicle-mounted equipment, carries out resonance noise identification on the collected audio signal, extracts the characteristics and analyzes the characteristics, matches the provided characteristics and the analyzed result in a predefined interior trim resonance frequency range, finds the correlation between the audio frequency point and the resonance noise, and can avoid the frequency point of the resonance noise by changing the audio output mode, thereby reducing the resonance noise.

The invention uses original controllers (such as vehicle entertainment system, power amplifier, original vehicle microphone) in the vehicle to judge and calibrate the correlation between the audio source and the resonance noise in each frequency band, and weaken the correlation between the music frequency band and the resonance noise, thereby controlling the resonance noise. Compared with the active noise reduction and noise reduction technology in the prior art, the invention can more accurately identify and process the resonance noise generated by music in the automobile, effectively reduce noise interference, improve music quality, provide better automobile experience for passengers, avoid carrying out a large number of noise reduction measures on the interior decoration which is easy to generate resonance, carry out noise control only through the original controller and parts in the automobile, have lower cost, control the induction source of the noise (namely the music in the automobile), and have a relatively effective and controllable scheme without imperfect millions of negative noise because of calibration.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a flowchart of an in-vehicle resonance noise control method.

Fig. 2 is a block diagram of an in-vehicle resonance noise control system.

Fig. 3 is a flowchart of an embodiment of the present invention in a specific application scenario.

Fig. 4 is a schematic diagram of an implementation manner of the embodiment of the present invention in a specific application scenario.

Fig. 5 is a schematic structural view of the electronic device.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The flow chart of the in-vehicle resonance noise control method shown in fig. 1 includes:

step S1, acquiring an audio signal by using vehicle-mounted equipment, and identifying resonance noise;

specifically, the audio signal is collected by using the vehicle-mounted device, specifically, the audio signal is collected by using a microphone array.

Specifically, the feature extraction and analysis of the identified resonance noise specifically includes: and determining corresponding audio frequency points and amplitudes according to the extracted resonance noise characteristics and the vehicle speed information.

Illustratively, identifying the resonant noise includes: the audio signal is filtered and denoised.

S2, performing feature extraction and analysis on the identified resonance noise, and matching the results of the feature extraction and analysis in a predefined interior trim resonance frequency range;

specifically, the resonant noise identification further includes: the results of the feature extraction and analysis are matched in a predefined interior trim resonance frequency range, in particular, the method is used for analyzing the amplitude and the frequency spectrum characteristics of a resonance noise signal and determining the intensity and the distribution condition of the resonance noise.

And S3, judging the correlation between the audio frequency point and the resonance noise according to the matching result, and avoiding the frequency point of the resonance noise by changing the audio output mode so as to cut down the resonance noise.

Noun interpretation: frequency points refer to specific absolute frequency values. Typically the center frequency of the modulated signal. The frequency bin is a number given to a fixed frequency, for example: the frequencies are divided at 200KHz frequency intervals and each frequency band is numbered from 1, 2, 3, 4, 5 … … up to N, such a number of fixed frequencies being the frequency points, i.e. the number of fixed frequencies.

The correlation refers to a statistical relationship between an audio frequency point and resonance noise, after knowing the statistical relationship between the audio frequency point and the resonance noise, the frequency point of the resonance noise can be avoided by changing the audio output mode based on the well-known audio circuit principle through the modulation and demodulation means in the prior art, namely, the frequency point avoids the natural frequency of the resonance noise, and the resonance noise can be reduced.

Specifically, the method also comprises a feedback mechanism: the in-vehicle resonance noise is continuously monitored, and noise signals before and after the reduction of the resonance noise are compared to evaluate the reduction effect of the resonance noise.

Specifically, the sound source output intensity is determined based on the result of comparing the noise signals before and after the reduction of the resonance noise, and based on the result of whether the resonance noise can be controlled within + -5 Hz, whether the sound source output intensity is controlled by changing the volume level is determined.

For the purposes of simplicity of explanation, the method steps disclosed in the above embodiments are depicted as a series of acts in a combination, but it should be understood by those skilled in the art that the embodiments of the present invention are not limited by the order of acts described, as some steps may occur in other order or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred embodiments, and that the acts are not necessarily required by the embodiments of the invention.

Any process or method description that is flow chart or otherwise described may be understood as: means, segments, or portions of code representing executable instructions including one or more steps of a particular logic function or procedure are illustrated, and the scope of the preferred embodiment of the present invention includes additional implementations in which functions may be executed out of order from that shown or discussed, including performing the functions in a substantially simultaneous manner or in an inverse order, or executing computer instructions in a loop, branch, etc. program structure and implementing the corresponding functions, depending on the function involved, as would be understood by those skilled in the art in practicing the embodiments of the present invention.

The in-vehicle resonance noise control system shown in fig. 2 specifically includes:

It should be noted that, although only some basic functional modules are disclosed in the embodiment of the present invention, the composition of the present system is not meant to be limited to the above basic functional modules, but rather, the present embodiment is meant to express: one skilled in the art can add one or more functional modules to the basic functional module to form an infinite number of embodiments or technical solutions, that is, the system is open rather than closed, and the scope of protection of the claims is not limited to the disclosed basic functional module because the present embodiment only discloses individual basic functional modules. Meanwhile, for convenience of description, the above devices are described as being functionally divided into various units and modules, respectively. Of course, the functions of the units, modules may be implemented in one or more pieces of software and/or hardware when implementing the invention.

The embodiments of the system described above are merely illustrative, for example: wherein each functional module, unit, subsystem, etc. in the system may or may not be physically separate, or may not be a physical unit, i.e. may be located in the same place, or may be distributed over a plurality of different systems and subsystems or modules thereof. Those skilled in the art may select some or all of the functional modules, units or subsystems according to actual needs to achieve the purposes of the embodiments of the present invention, and in this case, those skilled in the art may understand and implement the present invention without any inventive effort.

In an embodiment of the present invention shown in fig. 3 and 4, this embodiment proposes a method for controlling resonance noise of an automobile, where calibration and noise control can be performed by software through sound system components in the automobile, such as a microphone, a power amplifier, and an on-board entertainment controller.

Microphone array: the microphone should possess the module of making an uproar falls to arrange in car as many places as possible, reach the purpose of fully discerning car internal resonance noise. In addition to the positions where resonance is easily generated, such as the automobile door and the ceiling, microphone arrays are arranged at the positions of the seat, the floor and the like so as to more comprehensively monitor and process resonance noise in the automobile and convert collected sound into an electric signal. To enhance the quality of the signals picked up by the microphones, front-end processing circuitry may be added between the microphone array and the power amplifier. The front-end processing circuit comprises an amplifier, a filter, an analog-to-digital converter and other components for amplifying and filtering the microphone signal and converting it into a digital signal.

A power amplifier: and plays a role in collecting various required signals. The power amplifier is directly connected with the noise reduction microphone and the vehicle-mounted entertainment controller. The power amplifier should be provided with independent DSP and MCU chips, and the DSP chip can adopt two ADSP21489, one is responsible for noise signal processing and the other is responsible for music frequency point information acquisition and sound signal processing. The MCU chip can adopt S32K146 to ensure that the chip performance is enough to identify various parameter information and issue instructions. The microphone transmits resonance noise picked up by the microphone to a DSP chip of the power amplifier in the form of an electric signal; the vehicle-mounted entertainment controller transmits the sound source to the power amplifier through the A2B module, and the power amplifier performs frequency band splitting and identification on the current sound source. The DSP chip transmits the processed resonance noise characteristic parameters to the controller chip. The MCU outputs a control instruction for adjusting the output frequency point and amplitude of the power amplifier, the MCU chip can set a threshold value based on a preset resonance frequency range and characteristic parameters so as to judge the current resonance noise condition and make corresponding adjustment, and the acquired music frequency point information is processed through an automatic and intelligent processing means.

Self-adaptive noise reduction function: in order to enable the system to adaptively adjust the suppression strategy according to the data monitored in real time, an adaptive function can be added into the system. The algorithm can adjust the inhibition strategy in real time by monitoring factors such as the vehicle speed, the engine rotating speed, the road surface condition and the like, so that the generation of resonance noise is effectively reduced. Such as: the vehicle speed is detected, and if the vehicle is in a high-speed running state, the degree of resistance of resonance noise is reduced. It will be appreciated by those skilled in the art that the "high speed running state" may be determined based on common sense of life and common sense of driving, for example, when the vehicle speed is 80-120km/h, the vehicle is in the "high speed running state". When the automobile runs at a high speed, the MCU chip in the power amplifier judges that the automobile is in the high-speed running state when acquiring higher speed and rotating speed, the external noise level is higher, the resonance in the automobile is weakened, the passenger needs the sense of reality of music in the automobile at the moment, the suppression degree of the resonance noise can be properly reduced, and the listening sense of the music is preferentially ensured.

The software calibration and working flow of the invention are as follows:

microphone acquisition: the resonance noise signals in the vehicle are collected by using the microphone array and transmitted to the DSP chip.

A vehicle speed sensor: the speed information of the current vehicle is obtained and CAN be directly sent to the MCU in the power amplifier through the whole vehicle CAN line.

Speaker status: the working state of the loudspeaker, such as output sound source frequency, operational amplifier output power and the like, is monitored through the DSP chip.

Pretreatment: the acquired resonant noise signal is filtered and denoised to extract useful resonant noise frequency characteristics.

Feature extraction and analysis: the frequency characteristics of the resonance noise are extracted and matched with a predefined interior trim resonance frequency range, the interior trim resonance frequency range is calibrated and tested on a real vehicle, the amplitude and the frequency spectrum characteristics of the resonance noise signal are analyzed, and the intensity and the distribution condition of the resonance noise are determined.

Control strategy: and determining proper audio frequency points and amplitude according to the extracted resonance noise characteristics and the vehicle speed information, and if the acquired audio frequency points and the resonance noise show strong correlation, avoiding frequency points which are easy to generate resonance by changing an audio output mode so as to reduce resonance noise, wherein the MCU chip controls the DSP chip to adjust output frequency points and volume, and plays the adjusted audio signals through the loudspeaker so as to realize control of the resonance noise.

Feedback mechanism: and continuously monitoring resonance noise signals of resonance points of the whole vehicle, comparing the resonance noise signals with noise signals acquired before the algorithm is effective, and evaluating the reduction effect of the resonance noise. According to the comparison result, the audio frequency point and the amplitude in the control strategy are fed back and adjusted, and if the resonance noise can not be obviously controlled within +/-5 Hz, the output intensity of the sound source is controlled by changing the volume, so that the resonance noise is further controlled.

And (3) outputting: the MCU chip sends a control instruction to the DSP chip to adjust the audio frequency point and amplitude. The speaker plays the adjusted audio signal, reducing resonance noise and enhancing ride comfort.

In this embodiment, the algorithm of the resonance noise control method adds a feedback mechanism part, and compares the sound output by the speaker with the target signal to evaluate the reduction effect of the resonance noise, and adjusts the audio frequency point and amplitude in the control strategy according to the evaluation result feedback, so as to further optimize the control effect of the resonance noise. The final output includes the adjustment instruction sent by the controller to the power amplifier and the adjusted audio signal played by the loudspeaker for resonance noise reduction and driving comfort improvement. To more fully test and process resonance noise, test and processing strategies for multiple musical types and other sound sources may be incorporated. For example, it is possible to add different types of music such as classical music, popular music, electronic music, etc. during the test and test the characteristics and variations of resonance noise under the different types of music. In addition, other sound source testing and processing strategies, such as telephone calls, can be added to more fully address the resonance noise problem.

Through the improvement, the resonance noise problem in the automobile can be more comprehensively and accurately identified and processed by the technical scheme, so that riding experience and comfortableness are improved.

The microphone array in the technical scheme can adopt the MEMS microphone, and the microphone has the advantages of small size, high sensitivity, low power consumption and the like, and is very suitable for being applied to an automobile resonance noise processing system. The microphone array may be made up of a plurality of microphone units, e.g. 8, 16 or 32 microphone units, which may be selected according to the specific application requirements. The microphone array may be arranged at a position where a door, a ceiling, a seat, a floor, or the like in the interior of the automobile is likely to resonate.

The main control chip of the power amplifier in the technical scheme can adopt a Digital Signal Processor (DSP) such as ADSP21489 for processing the audio signals acquired by the microphone array in real time. The MCU main control chip identifies the disassembled music frequency point information, selectively suppresses the music frequency point which is easy to generate resonance noise by combining the algorithm, and outputs the processed music signal to the whole car loudspeaker through the power amplifier, thereby reducing the generation of resonance noise. The microphone continuously collects resonance noise signals in the whole vehicle running process, and if the noise is not obviously inhibited, the microphone can assist in applying the opposite-phase sound waves to further inhibit the resonance noise.

In actual use, the technical scheme can be applied to a factory sound system of an automobile, and can also be applied as an independent automobile resonance noise processing system. In addition, the technical scheme can be combined with other noise reduction technologies, such as an active noise reduction technology and a passive noise reduction technology, so that a more efficient and comprehensive resonance noise processing effect is achieved.

As shown in fig. 5, the invention further provides an electronic device, a storage medium and a vehicle corresponding to the method and the system on the basis of the in-vehicle resonance noise control method and the system:

an electronic device, comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; the memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the in-vehicle resonance noise control method.

A computer readable storage medium storing a computer program executable by an electronic device, which when run on the electronic device causes the electronic device to perform the steps of an in-vehicle resonance noise control method.

A vehicle specifically includes:

the electronic equipment is used for realizing an in-vehicle resonance noise control method;

a processor that runs a program that, when run, performs a step of an in-vehicle resonance noise control method on data output from the electronic device;

a storage medium storing a program that, when executed, performs steps of an in-vehicle resonance noise control method on data output from an electronic device.

Fig. 5 shows a block diagram of a terminal according to an embodiment of the present invention, where the terminal is configured to implement the in-vehicle resonance noise control method provided by the foregoing embodiment, and the terminal according to the embodiment of the present invention may include one or more of the following components: processors for executing computer program instructions to perform various processes and methods, random Access Memory (RAM) and Read Only Memory (ROM) for information and storage of program instructions, memory for storage of data and information, I/O devices, interfaces, antennas, and the like. Specifically, the present invention relates to a method for manufacturing a semiconductor device.

The terminal 400 may include RF circuitry 410 (Radio Frequency circuitry), memory 420, input unit 430, display unit 440, sensor 450, audio circuitry 460, wi-Fi module 470, processor 480, power supply 482, camera 490, and the like. It will be appreciated by those skilled in the art that the terminal structure shown in the drawings does not constitute a limitation of the terminal and may include more or less components than those illustrated, or may combine certain components, or may be arranged in different components.

The following describes the respective constituent elements of the terminal 400 in detail with reference to the accompanying drawings:

the RF circuit 410 may be used for receiving and transmitting signals during the process of receiving and transmitting information or communication, in particular, after receiving downlink information of the base station, the downlink information is processed by the processor 480; in addition, the data of the design uplink is sent to the base station. Typically, RF circuitry includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, an LNA (Low Noise Amplifier ), a duplexer, and the like. In addition, the RF circuitry 410 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol including, but not limited to, GSM (Global System of Mobile communication, global system for mobile communications), GPRS (General Packet Radio Service ), CDMA (Code Division Multiple Access, code division multiple access), WCDMA (Wide band Code Division Multiple Access ), LTE (Long Term Evolution, long term evolution), email, SMS (Short Messaging Service, short message service), and the like.

The memory 420 may be used to store software programs and modules, and the processor 480 may perform various functional applications and data processing of the terminal 400 by executing the software programs and modules stored in the memory 420. The memory 420 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like; the storage data area may store data (such as audio data, phonebook, etc.) created according to the use of the terminal 400, etc. In addition, memory 420 may include high-speed random access memory, and may include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, and may include other volatile solid-state storage devices.

The input unit 430 may be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal 400. In particular, the input unit 430 may include a touch panel 431 and other input devices 432. The touch panel 431, also referred to as a touch screen, may collect touch operations thereon or thereabout by a user (e.g., operations of the user on the touch panel 431 or thereabout using any suitable object or accessory such as a finger, a stylus, etc.), and drive the corresponding connection device according to a predetermined program. Alternatively, the touch panel 431 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch azimuth of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device and converts it into touch point coordinates, which are then sent to the processor 480, and can receive commands from the processor 480 and execute them. In addition, the touch panel 431 may be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 430 may include other input devices 432 in addition to the touch panel 431. In particular, other input devices 432 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, mouse, joystick, etc.

The display unit 440 may be used to display information input by a user or information provided to the user and various menus of the terminal 400. The display unit 440 may include a display panel 441, and optionally, the display panel 441 may be configured in the form of an LCD (Liquid Crystal Display ), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch panel 431 may cover the display panel 441, and when the touch panel 431 detects a touch operation thereon or nearby, the touch operation is transmitted to the processor 480 to determine the type of the touch event, and then the processor 480 provides a corresponding visual output on the display panel 441 according to the type of the touch event. Although the touch panel 431 and the display panel 441 are shown as two separate components to implement the input and input functions of the terminal 400, in some embodiments, the touch panel 431 and the display panel 441 may be integrated to implement the input and output functions of the terminal 400.

The terminal 400 may also include at least one sensor 450, such as a gyroscopic sensor, a magnetic induction sensor, a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 441 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 441 and/or the backlight when the terminal 450 moves to the ear. As one of the motion sensors, the acceleration sensor can detect the acceleration in all directions (generally three axes), and can detect the gravity and direction when the motion sensor is stationary, and the motion sensor can be used for applications of recognizing the gesture of a terminal (such as horizontal and vertical screen switching, related games, magnetometer gesture calibration), vibration recognition related functions (such as pedometer and knocking), and the like; other sensors such as barometer, hygrometer, thermometer, infrared sensor, etc. that may be configured for the terminal 400 are not described herein.

Audio circuitry 460, speaker 461, microphone 462 can provide an audio interface between a user and terminal 400. The audio circuit 460 may transmit the received electrical signal after the audio data conversion to the speaker 461, and the electrical signal is converted into a sound signal by the speaker 461 and output; on the other hand, the microphone 462 converts the collected sound signals into electrical signals, which are received by the audio circuit 460 and converted into audio data, which are processed by the audio data output processor 480 and transmitted to, for example, another terminal via the RF circuit 410, or which are output to the memory 420 for further processing.

Wi-Fi belongs to a short-range wireless transmission technology, and the terminal 400 can help a user to send and receive e-mail, browse web pages, access streaming media and the like through the Wi-Fi module 470, so that wireless broadband internet access is provided for the user. Although Wi-Fi module 470 is illustrated, it is to be understood that it does not belong to the essential constitution of terminal 400, and can be omitted entirely as needed within the scope of not changing the essence of the invention.

The processor 480 is a control center of the terminal 400, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal 400 and processes data by running or executing software programs and/or modules stored in the memory 420 and calling data stored in the memory 420, thereby performing overall monitoring of the terminal. Optionally, the processor 480 may include one or more processing units; preferably, the processor 480 may integrate an application processor that primarily handles operating systems, user interfaces, applications, etc., with a modem processor that primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 480.

The terminal 400 also includes a power supply 482 (e.g., a battery) for powering the various components, which may be logically connected to the processor 482 by a power management system, such as a power management system for performing functions such as managing charging, discharging, and power consumption.

The camera 490 generally consists of a lens, an image sensor, an interface, a digital signal processor, a CPU, a display screen, and the like. Wherein, the lens is fixed above the image sensor, and the focusing can be changed by manually adjusting the lens; the image sensor is equivalent to a 'film' of a traditional camera, and is a heart for acquiring images by a camera; the interface is used for connecting the camera with the terminal main board by using a flat cable, a board-to-board connector and a spring connection mode, and sending the acquired image to the memory 420; the digital signal processor processes the acquired image by mathematical operations, converts the acquired analog image into a digital image and sends the digital image to the memory 420 through the interface.

Although not shown, the terminal 400 may further include a bluetooth module or the like, which is not described herein.

It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

It should be noted that certain terms are used throughout the description and claims to refer to particular elements. It will be appreciated by those of ordinary skill in the art that different manufacturers, manufacturers may refer to a component by different names. The description and claims do not differ by the way in which they distinguish between components, but rather differ by the way in which they function.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example: any of the embodiments claimed in the claims may be used in any combination of the embodiments of the invention.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps. Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise. Like reference numerals refer to like elements throughout the specification.

Those skilled in the art will appreciate that the modules in the apparatus of the embodiments may be adaptively changed and disposed in one or more apparatuses different from the embodiments. The modules or units or components of the embodiments may be combined into one module or unit or component and, furthermore, they may be divided into a plurality of sub-modules or sub-units or sub-components. Any combination of all features disclosed in this specification (including the corresponding claims, abstract and drawings), and all of the processes or units of any method or apparatus so disclosed, may be used in combination, except insofar as at least some of such features and/or processes or units are mutually exclusive. Each feature disclosed in this specification (including the corresponding claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

In the several embodiments provided in the present invention, it should be understood that the disclosed system, apparatus and method may be implemented in other manners, for example: the device embodiments described above are merely illustrative; for example: the division of the units is only one logic function division, and other division modes can be adopted in actual implementation; for example, multiple units or components may be combined or may be integrated into another system, or some features may be omitted, or certain instructions not executed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form not shown.

In this application, the term "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for purposes of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes have not been shown in detail to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims

1. An in-vehicle resonance noise control method, comprising:

2. The in-vehicle resonance noise control method according to claim 1, characterized in that the audio signal is collected by means of an in-vehicle device, in particular by means of a microphone array.

3. The in-vehicle resonance noise control method according to claim 1, wherein the feature extraction and analysis of the identified resonance noise is specifically: and determining corresponding audio frequency points and amplitudes according to the extracted resonance noise characteristics and the vehicle speed information.

4. The in-vehicle resonance noise control method according to claim 1, further comprising a feedback mechanism: the in-vehicle resonance noise is continuously monitored, and noise signals before and after the reduction of the resonance noise are compared to evaluate the reduction effect of the resonance noise.

5. The method according to claim 4, wherein the determination is made based on a result of comparing the noise signals before and after the reduction of the resonance noise, and the determination is made as to whether or not to control the sound source output intensity by changing the volume level based on a result of whether or not the resonance noise can be controlled within ±5 Hz.

6. The in-vehicle resonance noise control method according to claim 1, characterized in that the resonance noise identification further includes: the results of the feature extraction and analysis are matched in a predefined interior trim resonance frequency range, in particular, the method is used for analyzing the amplitude and the frequency spectrum characteristics of a resonance noise signal and determining the intensity and the distribution condition of the resonance noise.

7. An in-vehicle resonance noise control system, comprising:

8. An electronic device, comprising: the device comprises a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus; the memory has stored therein a computer program which, when executed by the processor, causes the processor to perform the steps of the method of any of claims 1 to 6.

9. A computer readable storage medium, characterized in that it stores a computer program executable by an electronic device, which, when run on the electronic device, causes the electronic device to perform the steps of the method of any one of claims 1 to 6.

10. A vehicle, characterized by comprising:

an electronic device for implementing the method of any one of claims 1 to 6;

a processor running a program, which when run performs the steps of the method of any one of claims 1 to 6 on data output from the electronic device;

a storage medium storing a program which, when run, performs the steps of the method of any one of claims 1 to 6 on data output from an electronic device.