CN110223669A - Processing method, the device and system of car noise - Google Patents

Abstract

The present invention provides a kind of processing methods of car noise, device and system, are related to automobile noise process field, the processing method of the car noise is using the pavement state information and vehicle speed information for obtaining vehicle current time first；It is then based on the pavement state information and the vehicle speed information determines the characteristic value of the first noise；Finally the characteristic value based on first noise generates the first noise for eliminating the first noise and eliminates signal.With ANC system in the prior art in such a way that the noise that has generated of microphone acquisition exists and sternly lags, this method noise with noise-cancelling signal be it is synchronous, improve de-noising effect, alleviate the poor problem of de-noising effect in the prior art.

Description

Method, device and system for processing automobile noise

technical field

The present invention relates to the technical field of automobiles, and in particular, to a method, device and system for processing automobile noise.

Background technique

When the car is driving, it will generate noise, and the intensity of the noise has a great impact on the comfort of the driver and passengers.

At present, the main noise reduction means in the prior art is to use an ANC (Active Noise Control. Active Noise Control) system to perform active noise reduction. The noise reduction principle of ANC is to collect the noise in the car through the microphone, generate an active noise, and the two kinds of noise cancel each other out. For example, in "CN108597490A - a car audio noise management system", a car noise processing system is mentioned. The main principle is to collect the noise in the car through a microphone, obtain an anti-phase sound through the controller operation, and then pass Speaker playback, cancels out the original noise. This scheme has the following defects: Since the scheme relies on the way that the microphone collects noise, there is a serious lag, and the noise cancellation effect is poor.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a method, device and system for processing automobile noise, so as to improve the noise cancellation effect.

In a first aspect, an embodiment of the present invention provides a method for processing vehicle noise, including:

Obtain the road state information and vehicle speed information of the vehicle at the current moment;

determining a characteristic value of the first noise based on the road surface state information and the vehicle speed information;

A first noise cancellation signal is generated based on the characteristic value of the first noise, and the first noise cancellation signal is used to cancel the first noise.

In an optional embodiment, the method further includes:

Obtain the window opening status information of the vehicle at the current moment;

determining a characteristic value of the second noise based on the window opening state information and the vehicle speed information;

A second noise cancellation signal is generated based on the characteristic value of the second noise, and the second noise cancellation signal is used to cancel the second noise.

In an optional embodiment, the method further includes:

Obtain the working parameters of the engine at the current moment of the vehicle;

determining a characteristic value of the third noise based on the operating parameters of the engine;

A third noise cancellation signal is generated based on the characteristic value of the third noise, and the third noise cancellation signal is used to cancel the third noise.

In an optional implementation manner, the obtaining the road surface state information of the vehicle at the current moment includes:

Obtain the location information of the vehicle at the current moment;

Get the picture information of the vehicle at the current moment;

The road surface state information is obtained based on the location information and the picture information.

In an optional implementation manner, the obtaining the road surface state information based on the location information and the picture information includes:

obtaining initial road surface information corresponding to the location information based on the location information;

obtaining road surface correction information based on the picture information;

The road surface state information is obtained based on the initial road surface information and the road surface correction information.

In an optional implementation manner, the determining the characteristic value of the first noise based on the road surface state information and the vehicle speed information includes:

searching for a first audio file based on the road surface state information and the vehicle speed information;

The characteristic value of the first noise is obtained based on the first audio file.

In an optional embodiment, the method further includes:

Data update is performed on the first audio file.

In an optional embodiment, the method further includes:

obtaining a characteristic value of the fourth noise; wherein the fourth noise refers to the running noise of the engine collected by the microphone when the third noise is eliminated;

A compensation signal is generated based on the characteristic value of the fourth noise, and the compensation signal is used to cancel the fourth noise.

In a second aspect, an embodiment of the present invention provides a vehicle noise processing device, including:

The acquisition module is used to acquire the road state information and vehicle speed information of the vehicle at the current moment;

a control module, configured to determine a characteristic value of a first noise based on the road surface state information and the vehicle speed information; generate a first noise cancellation signal based on the characteristic value of the first noise, and the first noise cancellation signal is used for cancellation the first noise.

In a third aspect, an embodiment of the present invention provides an automobile noise processing system, including: a positioning device, an image acquisition device, a vehicle body control device, an audio playback device, and the automobile noise processing device according to the foregoing embodiments. The device, the image acquisition device, the body control device and the audio playback device are respectively connected with the vehicle noise processing device;

Wherein, the positioning device is used to obtain the position information of the vehicle at the current moment, and send the position information to the processing device of the automobile noise;

The image acquisition device is used for acquiring picture information of the vehicle at the current moment, and sending the picture information to the vehicle noise processing device;

The vehicle body control device is used for acquiring vehicle speed information at the current moment of the vehicle, and sending the vehicle speed information to the vehicle noise processing device;

The vehicle noise processing device is used to obtain road surface state information based on the position information and the picture information; determine the characteristic value of the first noise based on the road surface state information; generate the first noise based on the characteristic value of the first noise. a noise canceling signal, the first noise canceling signal is used to cancel the first noise; sending the first noise canceling signal to the audio playback device;

The audio playback device is configured to perform a playback action according to the first noise cancellation signal.

In a fourth aspect, an embodiment of the present invention further provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the computer program When realizing the steps of the above-mentioned processing method of automobile noise.

The vehicle noise processing method, the vehicle noise processing device, the vehicle noise processing system and the electronic device provided by the embodiments of the present invention firstly obtain the road surface state information and vehicle speed information of the vehicle at the current moment; The vehicle speed information is used to determine the characteristic value of the first noise; finally, a first noise cancellation signal for eliminating the first noise is generated based on the characteristic value of the first noise. Compared with the method in the prior art in which the ANC system collects the generated noise through the microphone, the noise and the noise canceling signal are synchronized in this method, which improves the noise canceling effect.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore do not It should be regarded as a limitation of the scope, and for those of ordinary skill in the art, other related drawings can also be obtained according to these drawings without any creative effort.

1 shows a flowchart of a method for processing vehicle noise provided by an embodiment of the present invention;

FIG. 2 shows a flowchart of another method for processing vehicle noise provided by an embodiment of the present invention;

FIG. 3 shows a flowchart of a third method for processing vehicle noise provided by an embodiment of the present invention;

FIG. 4 shows a schematic structural diagram of a vehicle noise processing device provided by an embodiment of the present invention;

FIG. 5 shows a schematic structural diagram of an automobile noise processing system provided by an embodiment of the present invention;

FIG. 6 shows a schematic diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, 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. Obviously, the described embodiments are only These are some embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Thus, the following detailed description of the embodiments of the invention provided in the accompanying drawings are not intended to limit the scope of the invention as claimed, but are merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

Considering that in the prior art, using the ANC system for noise reduction relies on the microphone to collect noise, there is a serious lag, and the noise cancellation effect is poor. Based on this, the embodiments of the present invention provide a method, device, and system for processing automobile noise, to improve noise cancellation. The following description will be given by way of examples.

Example 1

As shown in FIG. 1 , an embodiment of the present invention provides a method for processing vehicle noise, including:

Step S102, obtaining road surface state information and vehicle speed information of the vehicle at the current moment;

The pavement state information here mainly includes pavement material and pavement environmental conditions, wherein pavement materials mainly include initial pavement materials and pavement repair materials, and pavement environmental conditions include dryness, water accumulation, snow accumulation, subsidence, pavement repair or not, municipal equipment (such as Various manhole covers) distribution, etc.; the above-mentioned vehicle speed information includes vehicle speed value.

It should be noted that, considering the influence of road parameters on tire noise, in order to further improve the noise reduction effect, further, the road surface status information may also include road surface level (such as provincial roads, national roads, etc.), road surface service life (such as 5 years, 10 years), the number of road repairs (for example, 2 repairs), the depth of water accumulation, the depth of snow accumulation, etc. Considering the influence of different accelerations on tire noise, the vehicle speed information may also include acceleration values.

Step S104, determining the characteristic value of the first noise based on the road surface state information and the vehicle speed information;

The first noise here refers to tire noise.

Step S106, a first noise cancellation signal is generated based on the characteristic value of the first noise, and the first noise cancellation signal is used to cancel the first noise.

An embodiment of the present invention provides a method for processing vehicle noise, which includes obtaining road surface state information and vehicle speed information of the vehicle at the current moment; determining a characteristic value of the first noise based on the road surface state information and the vehicle speed information; The first noise canceling signal used to cancel the first noise, the noise and the noise canceling signal are synchronized, which avoids the lag problem caused by using a microphone to collect the noise after the noise is generated, and then performs ANC noise canceling, and improves the Noise canceling effect.

Further, when acquiring the vehicle speed information at the current time of the vehicle in the above step S102, the vehicle speed information at the current time of the vehicle may be obtained through the body controller of the automobile.

When obtaining the road surface state information of the vehicle at the current moment in the above step S102, the following steps can be performed:

1. Obtain the location information of the vehicle at the current moment;

The above-mentioned location information includes the geographic coordinate value of the vehicle in the map at the current moment.

Specifically, the location information of the vehicle at the current moment is obtained through the GPS module.

2. Obtain the picture information of the vehicle at the current moment;

The image information mainly includes road image information within a preset range, where the road image information includes ground information of the surrounding environment where the vehicle is located, such as road image information at preset distances under the vehicle, in front of the vehicle, and behind the vehicle;

Specifically, the picture information of the vehicle at the current moment is acquired through an image acquisition device (such as a camera) installed at a preset position of the vehicle.

3. Obtain the road state information based on the location information and the picture information.

Specifically, this step 3 mainly includes the following steps:

3.1 Obtain initial road surface information corresponding to the location information based on the location information;

The above-mentioned initial pavement information includes initial pavement materials, such as cement pavement, asphalt pavement, and the like. Of course, the initial road surface information may also include a road surface level.

For example, according to the obtained geographic coordinate value, the pre-stored map data is searched to obtain the initial road surface information corresponding to the geographic coordinate value.

3.2 Obtain road correction information based on picture information;

The pavement correction information here includes pavement environmental conditions, pavement repair or not (that is, whether the pavement is repaired, judged by the difference between new and old materials), pavement repair materials (such as cement material repair, asphalt material repair), and the like.

Specifically, the road surface correction information can be obtained by identifying the image information according to the image analysis technology;

3.3 Obtain pavement state information based on initial pavement information and pavement correction information.

The road state information is obtained by extracting the relevant information in the initial road surface information and the road surface correction information.

Considering that there is data missing in the map data, in another embodiment, the above-mentioned step S102 may also only recognize the photographed picture information through the image recognition technology to obtain the road surface state information.

Considering the abnormal situation of the image parsing error, in other embodiments, the above step S102 may determine the road environment condition by obtaining weather data of a preset time period from the meteorological station, and obtain the road condition information in combination with the location information.

Further, the above step S104 can be implemented by the following steps:

1) searching for the first audio file based on road state information and vehicle speed information;

Specifically, according to the current road surface state information (for example, the initial road surface material is asphalt, the road surface repair material is asphalt, the dry road surface without water and snow) and the vehicle speed information (for example, the vehicle speed value) from the pre-established first information Find the first audio file corresponding to the road surface state information and the vehicle speed information in the table.

The above-mentioned first information table includes a plurality of multiple audio files collected under different road surface state information and different vehicle speed information, where the first audio file refers to the road surface state information and vehicle speed at the current moment in the multiple audio files. A tire noise (tire noise) file or a tire noise spectrum file corresponding to the information.

In order to improve the search efficiency, further, when searching for the first audio file, the difference retrieval method can be used to search in the first information table, that is, according to the initial road surface information and the road surface correction information, the current actual road surface state information is obtained, combined with The vehicle speed value is retrieved from the tire noise data audio file in the first information table to obtain the current first audio file.

2) Obtain the characteristic value of the first noise based on the first audio file.

The characteristic value of the first noise, such as a frequency value and a phase of the first noise, is extracted from the first audio file.

Further, the above-mentioned step S106 is performed in the following manner: generating a first noise canceling signal that cancels the first noise according to the characteristic value of the first noise, wherein the first noise canceling signal is a signal whose phase is inverse to the first noise, and both are synchronous.

That is, the first noise cancellation signal synchronized with the first noise is generated after the inversion operation of the eigenvalues of the first noise is determined.

It should be understood that, in other embodiments, the above-mentioned first information table may also directly store the first audio file and the first audio processing file, wherein the first audio processing file is an inverse of the sound spectrum of the first audio file. Then, based on the road surface state information and the vehicle speed information, the first audio processing file can be directly correspondingly obtained, and the first noise cancellation signal is obtained after sound-driven conversion from the first audio processing file. That is to say, the first audio file corresponds to the inversion file of the first audio file, and the first audio inversion file can be obtained directly after inversion of the first audio file, and then directly extracted from the first audio inversion file The first noise cancellation signal.

Considering that the car noise is not only the tire noise, in order to realize the synchronous processing of various noises and further improve the noise reduction effect, on the basis of FIG. 1, FIG. 2 shows another kind of car noise provided by the embodiment of the present invention. The flow chart of the processing method, the difference from FIG. 1 is that the method also includes the processing steps of wind noise:

Step S202, obtaining the window opening state information of the vehicle at the current moment;

The above-mentioned opening state of the car window includes the opening and closing state of the car window and the opening size of the car window. Specifically, the opening state of the car window is represented by the opening degree of the car window. The windows are fully closed, 100 means the windows are fully open.

Specifically, the window opening state information at the current moment can be acquired through a body controller provided in the car.

It should be noted that the window opening status information here includes the opening status information of all windows (including sunroofs, front windows, rear windows, etc.) on the vehicle.

Step S204, determining the characteristic value of the second noise based on the window opening state information and the vehicle speed information;

The second noise here refers to wind noise.

During specific implementation, the acquisition method of the eigenvalue of the first noise can be analogized, and this step mainly includes the following steps:

(1) Searching for the second audio file based on the window opening state information and the vehicle speed information;

That is, searching is performed in the established second information table according to the window opening degree value and the vehicle speed value to obtain the second audio file corresponding to the current vehicle window opening degree value and the vehicle speed value. The second information table here includes wind noise frequency files combined with different window opening degrees and different vehicle speed values.

(2) Obtain the characteristic value of the second noise based on the second audio file.

Similarly, the feature value of the second noise is extracted from the second audio file.

Step S206, a second noise cancellation signal is generated based on the characteristic value of the second noise, and the second noise cancellation signal is used to cancel the second noise.

After inverting the second noise according to the characteristic value of the second noise, a second noise cancellation signal is generated, which is used to cancel the second noise.

Further, the method also includes the processing steps of engine noise:

Step S302, obtaining the working parameters of the engine at the current moment of the vehicle;

Wherein, the working parameters of the engine include but are not limited to the torque and rotational speed of the engine.

Specifically, the working parameters of the engine are obtained through the body controller.

Step S304, determining the characteristic value of the third noise based on the operating parameters of the engine;

Referring to the method of determining the characteristic value of the first noise, step S304 includes:

A Find the third audio file based on the working parameters of the engine;

Specifically, according to the torque and rotational speed of the engine, a third audio file corresponding to the torque and rotational speed of the engine at the current moment is obtained by searching in a pre-stored third information table;

The third information table here includes a plurality of engine noise audio files combined with different engine torques and rotational speeds.

B obtains the feature value of the third noise based on the third audio file.

Similarly, feature values of the third noise are extracted from the third audio file.

Step S306, a third noise cancellation signal is generated based on the characteristic value of the third noise, and the third noise cancellation signal is used to cancel the third noise.

During specific implementation, the third noise is inverted according to the characteristic value of the third noise to generate a third noise cancellation signal, which is used to cancel the third noise.

The automobile processing method provided by the embodiment of the present invention can distinguish and de-noise various noises such as tire noise, wind noise, engine noise, etc. In signal processing, since different noises and corresponding noise-canceling signals are synchronized , to avoid the use of microphone equipment to collect noise and deal with the existing lag problem, the noise reduction effect is better, and the noise reduction effect is more comprehensive, which further improves the noise reduction effect, and maximizes the comfort and safety of car driving. .

It should be pointed out that FIG. 2 only schematically shows the sequence of one of the processing methods, that is, the sequence of the above-mentioned processing steps of tire noise, wind noise, and engine noise should not be construed as a limitation of the present invention. Those skilled in the art can make adaptive adjustments to the sequence, for example, the engine noise can be processed first, then the wind noise can be processed, and the tire noise can be processed last. In addition, after obtaining multiple noise canceling signals, you can use multiple noise canceling signals to denoise different noises one by one; you can also mix multiple noise canceling signals to generate a comprehensive noise canceling signal, Use the integrated de-noising signal to perform unified de-noising for multiple noises; for example, after obtaining the first noise-cancelling signal, the second noise-cancelling signal and the third noise-cancelling signal, the first noise-cancelling signal and the second noise-cancelling signal can be removed. The signal and the third noise cancellation signal are sent to the speaker to denoise the first noise, the second noise and the third noise one by one; the first noise cancellation signal, the second noise cancellation signal and the third noise cancellation signal can also be mixed into one The integrated denoising signal is sent to the speaker for centralized denoising of the first noise, the second noise and the third noise.

Considering that there may be a problem of deviation of processing results, further, on the basis of FIG. 2 , an embodiment of the present invention provides a third method for processing vehicle noise. Referring to FIG. 3 , the method further includes a compensation step:

Step S402, acquiring the characteristic value of the fourth noise; wherein the fourth noise refers to the running noise of the engine collected by the microphone when the third noise is eliminated;

Step S404, generating a compensation signal based on the characteristic value of the fourth noise, where the compensation signal is used to eliminate the fourth noise.

In this method, re-compensation is performed by using a microphone as an auxiliary means of compensation, which is beneficial to further improve the noise cancellation effect. Specifically, in view of the deviation of the processing result, the method introduces the engine noise collected by the microphone during the engine noise reduction process for recompensation, in order to achieve the best noise reduction effect.

Considering how to adapt to more application scenarios, such as road conditions such as mountain roads, vehicle speed ranges, environmental frames, off-road vehicles and other vehicle types, in order to apply more conditions to the scene requirements and to be able to perform more accurate noise processing, further, The method further includes an update step: performing data update on the first audio file.

Specifically, the updating step is performed through the following steps:

A obtains the latest file version number of the first audio file on the server side; wherein the latest file version number refers to the file version number that is the shortest from the acquisition moment;

Specifically, obtain the latest file version number of the first audio file on the server side through the 4G router;

B judges whether the current version number of the first audio file is lower than the latest file version number;

If so, update the first audio file. If not, do not update.

Specifically, when updating, the first audio file with the latest file version number is downloaded through the 4G router.

Based on the same manner, data update can be performed on the above-mentioned second audio file and third audio file.

The method provided by the embodiment of the present invention can meet the requirements of more application scenarios by updating data, and is beneficial to perform more accurate noise processing and improve the noise reduction effect.

Example 2

As shown in FIG. 4 , an embodiment of the present invention provides a vehicle noise processing device, including an acquisition module 100 and a control module 500;

Wherein, the obtaining module 100 is used to obtain the road state information and vehicle speed information of the vehicle at the current moment;

A control module 200, configured to determine a characteristic value of a first noise based on the road surface state information and the vehicle speed information; generate a first noise cancellation signal based on the characteristic value of the first noise, and the first noise cancellation signal is used for The first noise is removed.

Further, the obtaining module 100 is configured to obtain the position information of the vehicle at the current moment; obtain the picture information of the vehicle at the current moment; and obtain the road surface state information based on the position information and the picture information.

Further, the control module 200 is configured to acquire initial road surface information corresponding to the location information based on the location information; acquire road surface correction information based on the picture information; obtain the road surface correction information based on the initial road surface information and the road surface correction information Pavement status information.

Further, the control module 200 is configured to search for a first audio file based on the road surface state information and the vehicle speed information; and obtain a characteristic value of the first noise based on the first audio file.

Further, the apparatus further includes an update module 300 for performing data update on the first audio file.

Further, the obtaining module 100 is further configured to obtain the window opening state information of the vehicle at the current moment;

The control module 200 is further configured to determine a characteristic value of the second noise based on the window opening state information and the vehicle speed information; and generate a second noise cancellation signal based on the characteristic value of the second noise, the second noise cancellation signal for removing the second noise.

Further, the obtaining module 100 is further configured to obtain the working parameters of the engine at the current moment of the vehicle;

The control module 200 is further configured to determine the characteristic value of the third noise based on the operating parameters of the engine; and generate a third noise cancellation signal based on the characteristic value of the third noise, and the third noise cancellation signal is used to cancel the third noise cancellation signal. Three noise.

Further, the obtaining module 100 is further configured to obtain the characteristic value of the fourth noise; wherein the fourth noise refers to the running noise of the engine collected by the microphone when the third noise is eliminated;

The control module 200 is further configured to generate a compensation signal based on the characteristic value of the fourth noise, where the compensation signal is used to cancel the fourth noise.

Referring to FIG. 5 , an embodiment of the present invention provides a vehicle noise processing system, including: a positioning device 500 , an image acquisition device 600 , a body control device 700 , an audio playback device 800 , and the above-mentioned vehicle noise processing device 400 , the positioning device 500. The image acquisition device 600, the vehicle body control device 700 and the audio playback device 800 are respectively connected with the vehicle noise processing device;

Wherein, the positioning device 500 is used to obtain the position information of the vehicle at the current moment, and send the position information to the processing device of the automobile noise;

An image acquisition device 600, configured to acquire picture information of the vehicle at the current moment, and send the picture information to the vehicle noise processing device;

a vehicle body control device 700, configured to acquire vehicle speed information at the current moment of the vehicle, and send the vehicle speed information to the vehicle noise processing device;

The vehicle noise processing device 400 is configured to obtain road surface state information based on the location information and the picture information; determine a characteristic value of the first noise based on the road surface state information; generate a first noise based on the characteristic value of the first noise a noise canceling signal, the first noise canceling signal is used to cancel the first noise; sending the first noise canceling signal to the audio playback device;

The audio playback device 800 is configured to perform a playback action according to the first noise cancellation signal.

Further, the body control device 700 is further configured to acquire the window status information of the vehicle at the current moment; and send the window status information to the vehicle noise processing device;

The vehicle noise processing device 400 is further configured to: determine a characteristic value of the second noise based on the window opening state information and the vehicle speed information; generate a second noise cancellation signal based on the characteristic value of the second noise, and the The second noise canceling signal is used to cancel the second noise; the second noise canceling signal is sent to the audio playback device.

Further, the body control device 800 is further configured to acquire the working parameters of the engine of the vehicle at the current moment; and send the vehicle speed information, the window status information and the working parameters to the vehicle noise processing device 400;

The vehicle noise processing device 400 is further configured to: determine a characteristic value of the third noise based on the operating parameters of the engine; generate a third noise cancellation signal based on the characteristic value of the third noise, and the third noise cancellation signal is used for removing the third noise; sending a second noise removing signal to the audio playback device.

Further, the system further includes an audio receiving device 900 connected to the vehicle noise processing device 400, for collecting the running noise of the engine when eliminating the third noise;

The vehicle noise processing device 400 is further configured to determine a characteristic value of the fourth noise based on the running noise of the engine collected when the third noise is eliminated; and to generate a compensation signal based on the characteristic value of the fourth noise, and the compensation signal is used for eliminating the third noise. the fourth noise; sending the supplementary signal to an audio playback device.

Further, the system further includes a network transceiver device 1000 connected to the vehicle noise processing device 400, and the network transceiver device is used to provide a network channel for algorithm upgrade and data file update of the vehicle noise processing device 400.

Specifically, the positioning device 500 includes a GPS (Global Positioning System, global positioning system), the image acquisition device 600 includes a camera, the body control device 700 includes a body controller, the audio playback device 800 includes a vehicle-mounted speaker, and the audio receiving device 900 includes a microphone; The vehicle noise processing device 400 includes a controller (ie, the above-mentioned control module); the network transceiver device 1000 includes a 4G router.

Among them, the GPS and vehicle speed controller are connected to the controller through the vehicle communication bus respectively; the microphone and vehicle speaker are connected to the controller through the audio bus, the camera is connected to the controller through the video bus, and the 4G router is connected to the controller through the wireless network. connect.

The vehicle noise processing device and the vehicle noise processing system provided by the embodiments of the present invention have the same technical features as the vehicle noise processing method provided by the above-mentioned embodiments, so they can also solve the same technical problems and achieve the same technical effects.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, for the specific working process of the system and device described above, reference may be made to the corresponding process in the foregoing method embodiments, which will not be repeated here.

Example 3

6, an embodiment of the present invention further provides an electronic device 1, including: a processor 40, a memory 41, a bus 42 and a communication interface 43, the processor 40, the communication interface 43 and the memory 41 are connected through the bus 42; processing The processor 40 is used to execute executable modules, such as computer programs, stored in the memory 41 .

The memory 41 may include a high-speed random access memory (RAM, Random Access Memory), and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 43 (which may be wired or wireless), which may use the Internet, a wide area network, a local network, a metropolitan area network, and the like.

The bus 42 may be an ISA bus, a PCI bus, an EISA bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one bidirectional arrow is shown in FIG. 6, but it does not mean that there is only one bus or one type of bus.

The memory 41 is used to store a program, and the processor 40 executes the program after receiving the execution instruction. The method executed by the device defined by the stream process disclosed in any of the foregoing embodiments of the present invention can be applied to processing in the processor 40 , or implemented by the processor 40 .

The processor 40 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method can be completed by a hardware integrated logic circuit in the processor 40 or an instruction in the form of software. The above-mentioned processor 40 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; it may also be a digital signal processor (Digital Signal Processing, DSP for short) , Application Specific Integrated Circuit (ASIC for short), Field-Programmable Gate Array (FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, and discrete hardware components. The methods, steps, and logical block diagrams disclosed in the embodiments of the present invention can be implemented or executed. 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 conjunction with the embodiments of the present invention may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory 41, and the processor 40 reads the information in the memory 41, and completes the steps of the above method in combination with its hardware.

The computer program product for processing the vehicle noise provided by the embodiments of the present invention includes a computer-readable storage medium storing program codes, and the instructions included in the program codes can be used to execute the methods described in the foregoing method embodiments, For specific implementation, reference may be made to the method embodiments, which will not be repeated here.

The apparatus for processing vehicle noise provided by the embodiment of the present invention may be specific hardware on the device, or software or firmware installed on the device. The implementation principle and technical effects of the device provided by the embodiment of the present invention are the same as those of the foregoing method embodiment. For brief description, for the parts not mentioned in the device embodiment, reference may be made to the corresponding content in the foregoing method embodiment. Those skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working processes of the systems, devices and units described above can all refer to the corresponding processes in the above method embodiments, which will not be repeated here.

In the embodiments provided by the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some communication interfaces, indirect coupling or communication connection of devices or units, which may be in electrical, mechanical or other forms.

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

In addition, each functional unit in the embodiments provided by the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

It should be noted that like numerals and letters refer to like items in the following figures, so that once an item is defined in one figure, it does not require further definition and explanation in subsequent figures, Furthermore, the terms "first", "second", "third", etc. are only used to differentiate the description and should not be construed as indicating or implying relative importance.

Finally, it should be noted that the above-mentioned embodiments are only specific implementations of the present invention, and are used to illustrate the technical solutions of the present invention, but not to limit them. The protection scope of the present invention is not limited thereto, although referring to the foregoing The embodiment has been described in detail the present invention, those of ordinary skill in the art should understand: any person skilled in the art who is familiar with the technical field within the technical scope disclosed by the present invention can still modify the technical solutions described in the foregoing embodiments. Changes can be easily conceived, or equivalent replacements are made to some of the technical features; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. All should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a processing method of automobile noise, is characterized in that, comprises: Obtain the road state information and vehicle speed information of the vehicle at the current moment; determining a characteristic value of the first noise based on the road surface state information and the vehicle speed information; A first noise cancellation signal is generated based on the characteristic value of the first noise, and the first noise cancellation signal is used to cancel the first noise. 2. The method according to claim 1, wherein the method further comprises: Obtain the window opening status information of the vehicle at the current moment; determining a characteristic value of the second noise based on the window opening state information and the vehicle speed information; A second noise cancellation signal is generated based on the characteristic value of the second noise, and the second noise cancellation signal is used to cancel the second noise. 3. The method according to claim 1, wherein the method further comprises: Obtain the working parameters of the engine at the current moment of the vehicle; determining a characteristic value of the third noise based on the operating parameters of the engine; A third noise cancellation signal is generated based on the characteristic value of the third noise, and the third noise cancellation signal is used to cancel the third noise. 4. The method according to claim 1, wherein the obtaining the road surface state information of the vehicle at the current moment comprises: Obtain the location information of the vehicle at the current moment; Get the picture information of the vehicle at the current moment; The road surface state information is obtained based on the location information and the picture information. 5. The method according to claim 4, wherein the obtaining the road surface state information based on the location information and the picture information comprises: obtaining initial road surface information corresponding to the location information based on the location information; obtaining road surface correction information based on the picture information; The road surface state information is obtained based on the initial road surface information and the road surface correction information. 6 . The method according to claim 1 , wherein the determining the characteristic value of the first noise based on the road surface state information and the vehicle speed information comprises: 6 . searching for a first audio file based on the road surface state information and the vehicle speed information; The characteristic value of the first noise is obtained based on the first audio file. 7. The method according to claim 6, wherein the method further comprises: Data update is performed on the first audio file. 8. The method according to claim 3, wherein the method further comprises: obtaining a characteristic value of the fourth noise; wherein the fourth noise refers to the running noise of the engine collected by the microphone when the third noise is eliminated; A compensation signal is generated based on the characteristic value of the fourth noise, and the compensation signal is used to cancel the fourth noise. 9. A device for processing vehicle noise, comprising: The acquisition module is used to acquire the road state information and vehicle speed information of the vehicle at the current moment; a control module, configured to determine a characteristic value of a first noise based on the road surface state information and the vehicle speed information; generate a first noise cancellation signal based on the characteristic value of the first noise, and the first noise cancellation signal is used for cancellation the first noise. 10. An automobile noise processing system, comprising: a positioning device, an image acquisition device, a body control device, an audio playback device, and the automobile noise processing device according to claim 9, wherein the positioning device, the The image acquisition device, the body control device and the audio playback device are respectively connected with the vehicle noise processing device; Wherein, the positioning device is used to obtain the position information of the vehicle at the current moment, and send the position information to the processing device of the automobile noise; The image acquisition device is used to acquire picture information of the vehicle at the current moment, and send the picture information to the vehicle noise processing device; the vehicle body control device, used for acquiring vehicle speed information at the current moment of the vehicle, and sending the vehicle speed information to the vehicle noise processing device; The vehicle noise processing device is configured to obtain road surface state information based on the position information and the picture information; determine the characteristic value of the first noise based on the road surface state information; generate the first noise based on the characteristic value of the first noise. a noise canceling signal, the first noise canceling signal is used to cancel the first noise; sending the first noise canceling signal to the audio playback device; The audio playback device is configured to perform a playback action according to the first noise cancellation signal.