Noise evaluation method and device and storage medium

Abstract

The invention discloses a noise evaluation method and device and a storage medium, and belongs to the technical field of vehicle control. The method comprises the steps that a first noise signal of a first preset position on the left side of a main driver, a second noise signal of a second preset position on the right side of a rear-row seat and a third noise signal of a preset distance near an electric drive assembly controller are collected in response to an obtained vehicle preparation state detection result indicating that a vehicle reaches a preparation state; identifying a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal; evaluating sound pressure levels corresponding to the first noise signal, the second noise signal and the third noise signal based on the first carrier frequency, the second carrier frequency and the third carrier frequency; and obtaining a noise evaluation result based on the sound pressure levels corresponding to the first noise signal, the second noise signal and the third noise signal. The comprehensive monitoring of the internal noise of the vehicle is realized, and the accuracy of vehicle internal noise evaluation is improved.

Description

Technical Field

[0001] Embodiments of the present application relate to the field of vehicle control technology, and in particular to a noise evaluation method, device, and storage medium. Background Art

[0002] When an electric vehicle is driving, the vehicle's power system and electronic equipment will generate carrier noise, which will affect the riding experience of the driver and passengers, and the noise radiation will also affect the health of the driver and passengers. Therefore, how to monitor and evaluate the carrier noise of electric vehicles to avoid the impact of excessive carrier noise on the driver and passengers is a problem that needs to be solved. Summary of the invention

[0003] The embodiment of the present application provides a noise evaluation method, device and storage medium, which can be used to prevent excessive carrier noise from affecting drivers and passengers. The technical solution is as follows:

[0004] On the one hand, an embodiment of the present application provides a method for evaluating noise, the method comprising:

[0005] Acquire a vehicle readiness state detection result, wherein the vehicle readiness state detection result is used to indicate whether the vehicle has reached the readiness state;

[0006] In response to obtaining a vehicle readiness state detection result indicating that the vehicle has reached the readiness state, collecting a first noise signal at a first preset position on the left side of a main driver's seat, a second noise signal at a second preset position on the right side of a rear seat, and a third noise signal at a preset distance near an electric drive assembly controller;

[0007] identifying a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal;

[0008] evaluating a sound pressure level corresponding to the first noise signal, a sound pressure level corresponding to the second noise signal, and a sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency;

[0009] A noise evaluation result is obtained based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, and the noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

[0010] In another aspect, a noise evaluation device is provided, the device comprising:

[0011] A first acquisition module, used to acquire a detection result of a vehicle preparation state, wherein the detection result of the vehicle preparation state is used to indicate whether the vehicle has reached a preparation state;

[0012] a collection module, configured to collect, in response to obtaining a vehicle preparation state detection result indicating that the vehicle has reached the preparation state, a first noise signal at a first preset position on the left side of a main driver, a second noise signal at a second preset position on the right side of a rear seat, and a third noise signal at a preset distance near an electric drive assembly controller;

[0013] an identification module, configured to identify a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal;

[0014] an evaluation module, configured to evaluate a sound pressure level corresponding to the first noise signal, a sound pressure level corresponding to the second noise signal, and a sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency;

[0015] The second acquisition module is used to obtain a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, wherein the noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

[0016] On the other hand, a non-temporary computer-readable storage medium is also provided, characterized in that a computer program is stored in the computer-readable storage medium, and the computer program is loaded and executed by a processor to implement any of the above-mentioned noise evaluation methods.

[0017] On the other hand, a computer program product is also provided, the computer program product comprising computer instructions, and when the computer instructions are executed by a processor, the steps of any of the above-mentioned noise evaluation methods are implemented.

[0018] The technical solution provided by this application brings at least the following beneficial effects:

[0019] After the vehicle reaches a ready state, the present application identifies a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal by collecting a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller; then evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal according to the first carrier frequency, the second carrier frequency, and the third carrier frequency; obtains a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, so as to determine whether the noise control inside the vehicle meets the standard, realize comprehensive monitoring of the noise inside the vehicle, improve the accuracy of the noise evaluation inside the vehicle, and avoid the influence of excessive carrier noise on the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 It is a schematic diagram of an implementation environment provided by an embodiment of the present application;

[0022] Figure 2 is a flow chart of a noise evaluation method provided in an embodiment of the present application;

[0023] Figure 3 It is a structural schematic diagram of a noise evaluation device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0025] This application embodiment provides a noise evaluation method, please refer to Figure 1, which shows a schematic diagram of the implementation environment of the method provided in the embodiment of the present application. The implementation environment may include: VCU (Vehicle Control Unit, vehicle controller) 11, tire pressure monitoring system 12, BMS (Battery Management System, battery management system) 13, ECU (Engine Control Unit, engine control system) 14, first acoustic sensor 15, second acoustic sensor 16, third acoustic sensor 17, large screen 18 of the vehicle center console and vehicle audio 19.

[0026] Optionally, the tire pressure monitoring system 12 is used to obtain the tire pressure and send it to the VCU11, so that the VCU11 can determine whether the tire pressure is greater than the pressure threshold. The BMS13 is used to obtain the SOC of the power battery and send it to the VCU11, so that the VCU11 can determine whether the SOC (State of Charge) of the power battery has reached a preset level. The ECU14 is used to obtain the engine start status and temperature and send it to the VCU11, so that the VCU11 can determine whether the engine has started and reached a preset temperature.

[0027] Exemplarily, the first acoustic sensor 15 is used to collect the first noise signal and send it to the VCU 11; the second acoustic sensor 16 is used to collect the second noise signal and send it to the VCU 11; the third acoustic sensor 17 is used to collect the third noise signal and send it to the VCU 11. The large screen 18 of the vehicle center console is used to display the text message "need to reduce the noise in the car" when the noise in the car needs to be reduced. The car audio 19 is used to broadcast the voice message "need to reduce the noise in the car" when the noise in the car needs to be reduced.

[0028] Among them, VCU 11, tire pressure monitoring system 12, BMS 13, ECU 14, first acoustic sensor 15, second acoustic sensor 16, third acoustic sensor 17, large screen 18 of vehicle center console and vehicle audio 19 establish communication connection through wired or wireless network.

[0029] Based on the above Figure 1 In the implementation environment shown in FIG. 1 , the present application embodiment provides a noise evaluation method such as Figure 2 As shown, taking the method applied to VCU as an example, the method includes steps 201 to 205.

[0030] In step 201, the VCU obtains a detection result of a vehicle preparation state, and the detection result of the vehicle preparation state is used to indicate whether the vehicle has reached a preparation state.

[0031] In a possible implementation, the VCU obtains a detection result of the vehicle's readiness state, wherein the detection result of the vehicle's readiness state is used to indicate whether the vehicle has reached a ready state. Optionally, the VCU obtains the detection result of the vehicle's readiness state, including: obtaining a first detection result, a second detection result, and a third detection result, the first detection result being used to indicate whether the tire's air pressure is greater than the air pressure threshold, the second detection result being used to indicate whether the power battery's state of charge SOC has reached a preset degree, and the third detection result being used to indicate whether the engine has started and reached a preset temperature; in response to obtaining a first detection result indicating that the tire's air pressure is greater than the air pressure threshold, a second detection result indicating that the power battery's SOC has reached a preset degree, and a third detection result indicating that the engine has started and reached a preset temperature, a detection result of the vehicle's readiness state indicating that the vehicle has reached a ready state is obtained.

[0032] Next, the method of obtaining each detection result is described with examples.

[0033] (1) Obtaining the first test result

[0034] Optionally, the first detection result is used to indicate whether the air pressure of the tire is greater than the air pressure threshold. Obtaining the first detection result includes: the VCU obtains the air pressure of the tire through the tire pressure monitoring system, and then compares the air pressure of the tire with the air pressure threshold; if the air pressure of the tire is greater than the air pressure threshold, the first detection result indicates that the air pressure of the tire is greater than the air pressure threshold; if the air pressure of the tire is less than or equal to the air pressure threshold, the first detection result indicates that the air pressure of the tire is less than or equal to the air pressure threshold.

[0035] (2) Obtaining the second detection result

[0036] Exemplarily, the second detection result is used to indicate whether the SOC of the power battery reaches a preset level. Obtaining the second detection result includes: the VCU obtains the SOC of the power battery through the BMS, and optionally, the remaining power percentage of the power battery can be used as the SOC of the power battery.

[0037] (3) Obtaining the third test result

[0038] In a possible implementation, the third detection result is used to indicate whether the engine is started and reaches a preset temperature. Obtaining the third detection result includes: the VCU obtains the start-up state and temperature of the engine through the ECU, and after determining that the engine is started, compares the temperature of the engine with the preset temperature. If the engine is started and reaches the preset temperature, the third detection result indicates that the engine is started and reaches the preset temperature; if the engine is not started, or the engine is started but does not reach the preset temperature, the third detection result indicates that the engine is not started or does not reach the preset temperature.

[0039] Optionally, after determining the first detection result, the second detection result and the third detection result, if a first detection result indicating that the tire pressure is greater than a pressure threshold, a second detection result indicating that the SOC of the power battery reaches a preset level, and a third detection result indicating that the engine is started and reaches a preset temperature is obtained, the VCU obtains a vehicle readiness status detection result indicating that the vehicle has reached a ready state.

[0040] In step 202, in response to obtaining a vehicle readiness status detection result indicating that the vehicle has reached a ready state, the VCU collects a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller.

[0041] Exemplarily, if a detection result of the vehicle readiness state indicating that the vehicle has reached a ready state is obtained, the VCU collects a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller, including: the VCU collects the first noise signal through a first acoustic sensor installed at the first preset position on the left side of the main driver; collects the second noise signal through a second acoustic sensor installed at the second preset position on the right side of the rear seat; and collects the third noise signal through a third acoustic sensor installed at a preset distance near the electric drive assembly controller.

[0042] In a possible implementation, the preset distance, the first preset position, and the second preset position can be set based on experience, for example, the preset distance can be 1 cm. The first acoustic sensor, the second acoustic sensor, and the third acoustic sensor can be microphones, and the frequency range of the acquisition can be 20-20000 Hz (Hertz), and the resolution can be 4 Hz (Hertz).

[0043] In step 203 , the VCU identifies a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal.

[0044] Optionally, after completing the acquisition of the first noise signal, the second noise signal, and the third noise signal, the VCU identifies the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal, including: obtaining a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identifying the first carrier frequency based on the first chromatogram, identifying the second carrier frequency based on the second chromatogram, and identifying the third carrier frequency based on the third chromatogram. The chromatogram is used to show the distribution of noise in different frequency ranges, and the frequency range of the noise is divided into multiple intervals in the figure, each interval corresponds to one or more frequency values, and the noise intensity of the frequency interval is represented by the depth of color.

[0045] Exemplarily, after completing the collection of the first noise signal, the second noise signal and the third noise signal, obtaining a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal, includes: preprocessing the first noise signal, the second noise signal and the third noise signal; performing spectrum analysis on the preprocessed first noise signal, the second noise signal and the third noise signal, and converting the time domain signal into a frequency domain signal; generating a data matrix according to the frequency domain signal; and then generating a first chromatogram based on the data matrix corresponding to the first noise signal, generating a second chromatogram based on the data matrix corresponding to the second noise signal, and generating a third chromatogram based on the data matrix corresponding to the third noise signal through a visualization tool.

[0046] In a possible implementation, after generating the first chromatogram, the second chromatogram, and the third chromatogram, the first carrier frequency is identified based on the first chromatogram, the second carrier frequency is identified based on the second chromatogram, and the third carrier frequency is identified based on the third chromatogram, including: selecting the center frequency in the first chromatogram, and then querying the area with the maximum sound pressure level on both sides based on the center frequency, and determining the first carrier frequency based on the frequency range corresponding to the area with the maximum sound pressure level; selecting the center frequency in the second chromatogram, and then searching for the area with the maximum sound pressure level on both sides based on the center frequency, and determining the second carrier frequency based on the frequency range corresponding to the area with the maximum sound pressure level; selecting the center frequency in the third chromatogram, and then searching for the area with the maximum sound pressure level on both sides based on the center frequency, and determining the third carrier frequency based on the frequency range corresponding to the area with the maximum sound pressure level.

[0047] In step 204, the VCU evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency.

[0048] Exemplarily, after determining the first carrier frequency, the second carrier frequency, and the third carrier frequency, the VCU evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency, including: acquiring a first noise curve in the first chromatogram based on the first carrier frequency, acquiring a second noise curve in the second chromatogram based on the second carrier frequency, and acquiring a third noise curve in the third chromatogram based on the third carrier frequency; evaluating the sound pressure level corresponding to the first noise signal based on the first noise curve, evaluating the sound pressure level corresponding to the second noise signal based on the second noise curve, and evaluating the sound pressure level corresponding to the third noise signal based on the third noise curve.

[0049] Optionally, obtaining a first noise curve in the first chromatogram based on the first carrier frequency includes: processing the first chromatogram through a programming language such as Python to extract noise data; and visualizing the extracted data through Matlab to obtain the first noise curve; and then calculating the maximum sound pressure level of the area corresponding to the first carrier frequency in the first noise curve, and using the maximum sound pressure level of the area corresponding to the first carrier frequency as the sound pressure level corresponding to the first noise curve.

[0050] In a possible implementation, obtaining a second noise curve in a second chromatogram based on a second carrier frequency includes: processing the second chromatogram through Python to extract noise data; and visualizing the extracted data through Matlab to obtain a second noise curve; and then calculating the maximum sound pressure level of an area corresponding to the second carrier frequency in the second noise curve, and using the maximum sound pressure level of the area corresponding to the second carrier frequency as the sound pressure level corresponding to the second noise curve.

[0051] Exemplarily, obtaining a third noise curve in a third chromatogram based on a third carrier frequency includes: processing the third chromatogram through Python to extract noise data; and visualizing the extracted data through Matlab to obtain a third noise curve; and then calculating the maximum sound pressure level of an area corresponding to the third carrier frequency in the third noise curve, and using the maximum sound pressure level of the area corresponding to the third carrier frequency as the sound pressure level corresponding to the third noise curve.

[0052] In step 205, the VCU obtains a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

[0053] In a possible implementation, after completing the evaluation of the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, the VCU obtains a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, and the noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

[0054] Exemplarily, obtaining a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal includes: in response to at least one of the sound pressure level corresponding to the first noise signal being greater than a first sound pressure level threshold, the sound pressure level corresponding to the second noise signal being greater than a second sound pressure level threshold, or the sound pressure level corresponding to the third noise signal being greater than a third sound pressure level threshold, obtaining a noise assessment result indicating that noise control inside the vehicle does not meet standards.

[0055] Optionally, after completing the evaluation of the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, the sound pressure level corresponding to the first noise signal is compared with the first sound pressure level threshold, the sound pressure level corresponding to the second noise signal is compared with the second sound pressure level threshold, and the sound pressure level corresponding to the third noise signal is compared with the third sound pressure level threshold. If at least one of the following conditions is satisfied: the sound pressure level corresponding to the first noise signal is greater than the first sound pressure level threshold, the sound pressure level corresponding to the second noise signal is greater than the second sound pressure level threshold, or the sound pressure level corresponding to the third noise signal is greater than the third sound pressure level threshold, the VCU obtains a noise evaluation result indicating that the noise control inside the vehicle does not meet the standard.

[0056] Exemplarily, if the sound pressure level corresponding to the first noise signal is less than or equal to the first sound pressure level threshold, the sound pressure level corresponding to the first noise signal is less than or equal to the first sound pressure level threshold, and the sound pressure level corresponding to the first noise signal is less than or equal to the first sound pressure level threshold, the VCU obtains a noise assessment result indicating that the noise control inside the vehicle meets the standard. Optionally, the first sound pressure level threshold, the second sound pressure level threshold, and the third sound pressure level threshold can all be set based on experience.

[0057] In one possible implementation, after the VCU obtains a noise assessment result indicating that the noise control inside the vehicle does not meet the standard, in response to obtaining the noise assessment result indicating that the noise control inside the vehicle does not meet the standard, the VCU issues a prompt message that the noise inside the vehicle needs to be reduced. Optionally, the method of issuing the prompt message that the noise inside the vehicle needs to be reduced includes, but is not limited to: the VCU displays a text message "the noise inside the vehicle needs to be reduced" on a large screen on the vehicle center console, or the VCU broadcasts a voice message "the noise inside the vehicle needs to be reduced" through the vehicle audio.

[0058] The embodiment of the present application, after the vehicle reaches a ready state, collects a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller, to identify a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal; then evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal according to the first carrier frequency, the second carrier frequency, and the third carrier frequency; obtains a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, so as to determine whether the noise control inside the vehicle meets the standard, thereby realizing comprehensive monitoring of the noise inside the vehicle, improving the accuracy of the noise evaluation inside the vehicle, and avoiding the influence of excessive carrier noise on the driver and passengers.

[0059] See also Figure 3 , an embodiment of the present application provides a noise evaluation device, the device comprising:

[0060] A first acquisition module 301 is used to acquire a detection result of a vehicle preparation state, where the detection result of the vehicle preparation state is used to indicate whether the vehicle has reached a preparation state;

[0061] The collecting module 302 is used for collecting, in response to obtaining a vehicle preparation state detection result indicating that the vehicle has reached a preparation state, a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller;

[0062] An identification module 303, configured to identify a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal;

[0063] An evaluation module 304 is used to evaluate the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency;

[0064] The second acquisition module 305 is used to obtain a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal. The noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

[0065] In one possible implementation, the identification module 303 is used to obtain a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identify a first carrier frequency based on the first chromatogram, identify a second carrier frequency based on the second chromatogram, and identify a third carrier frequency based on the third chromatogram.

[0066] In one possible implementation, the evaluation module 304 is used to obtain a first noise curve in the first chromatogram based on a first carrier frequency, obtain a second noise curve in the second chromatogram based on a second carrier frequency, and obtain a third noise curve in the third chromatogram based on a third carrier frequency; evaluate the sound pressure level corresponding to the first noise signal based on the first noise curve, evaluate the sound pressure level corresponding to the second noise signal based on the second noise curve, and evaluate the sound pressure level corresponding to the third noise signal based on the third noise curve.

[0067] In one possible implementation, the second acquisition module 305 is used to obtain a noise assessment result indicating that the noise control inside the vehicle is not up to standard in response to at least one of the sound pressure level corresponding to the first noise signal being greater than the first sound pressure level threshold, the sound pressure level corresponding to the first noise signal being greater than the first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal being greater than the first sound pressure level threshold.

[0068] In a possible implementation, the second acquisition module 305 is further configured to, in response to obtaining a noise assessment result indicating that the noise control inside the vehicle does not meet the standard, issue a prompt message indicating that the noise inside the vehicle needs to be reduced.

[0069] In one possible implementation, the first acquisition module 301 is used to acquire a first detection result, a second detection result, and a third detection result, the first detection result being used to indicate whether the air pressure of the tire is greater than the air pressure threshold, the second detection result being used to indicate whether the state of charge SOC of the power battery has reached a preset level, and the third detection result being used to indicate whether the engine has started and reached a preset temperature; in response to acquiring the first detection result indicating that the air pressure of the tire is greater than the air pressure threshold, the second detection result indicating that the SOC of the power battery has reached a preset level, and the third detection result indicating that the engine has started and reached a preset temperature, a vehicle readiness status detection result indicating that the vehicle has reached a ready state is acquired.

[0070] After the vehicle reaches a ready state, the device collects a first noise signal at a first preset position on the left side of the main driver, a second noise signal at a second preset position on the right side of the rear seat, and a third noise signal at a preset distance near the electric drive assembly controller, to identify a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal; then evaluates the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal according to the first carrier frequency, the second carrier frequency, and the third carrier frequency; obtains a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, so as to determine whether the noise control inside the vehicle meets the standard, realize comprehensive monitoring of the noise inside the vehicle, improve the accuracy of the noise evaluation inside the vehicle, and avoid the influence of excessive carrier noise on the driver and passengers.

[0071] It should be noted that the device provided in the above embodiment only uses the division of the above functional modules as an example to implement its functions. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiment belong to the same concept, and their specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0072] In an exemplary embodiment, a computer-readable storage medium is further provided, in which at least one computer program is stored. The at least one computer program is loaded and executed by a processor of a computer device to enable the computer to implement any of the above-mentioned noise evaluation methods.

[0073] In one possible implementation, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0074] In an exemplary embodiment, a computer program product or a computer program is also provided, the computer program product or the computer program comprising computer instructions, the computer instructions being stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs any of the above-mentioned noise evaluation methods.

[0075] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with relevant laws, regulations and standards of relevant countries and regions. For example, the vehicle readiness status detection results, the first noise signal, the second noise signal, the third noise signal and the noise assessment results involved in this application are all obtained with full authorization.

[0076] It should be understood that the "plurality" mentioned in this article refers to two or more. "And / or" describes the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0077] It should be noted that the terms "first", "second", etc. (if any) in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0078] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A noise evaluation method, characterized in that: The method comprises: Acquire a vehicle readiness state detection result, wherein the vehicle readiness state detection result is used to indicate whether the vehicle has reached the readiness state; In response to obtaining a vehicle readiness state detection result indicating that the vehicle has reached the readiness state, collecting a first noise signal at a first preset position on the left side of a main driver's seat, a second noise signal at a second preset position on the right side of a rear seat, and a third noise signal at a preset distance near an electric drive assembly controller; identifying a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal; evaluating a sound pressure level corresponding to the first noise signal, a sound pressure level corresponding to the second noise signal, and a sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency; A noise evaluation result is obtained based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, and the noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

2. The method according to claim 1, characterized in that The identifying the first carrier frequency of the first noise signal, the second carrier frequency of the second noise signal, and the third carrier frequency of the third noise signal comprises: Acquire a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; The first carrier frequency is identified based on the first chromatogram, the second carrier frequency is identified based on the second chromatogram, and the third carrier frequency is identified based on the third chromatogram.

3. The method according to claim 2, characterized in that The evaluating, based on the first carrier frequency, the second carrier frequency, and the third carrier frequency, the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal comprises: Acquire a first noise curve in the first chromatogram based on the first carrier frequency, acquire a second noise curve in the second chromatogram based on the second carrier frequency, and acquire a third noise curve in the third chromatogram based on the third carrier frequency; The sound pressure level corresponding to the first noise signal is evaluated based on the first noise curve, the sound pressure level corresponding to the second noise signal is evaluated based on the second noise curve, and the sound pressure level corresponding to the third noise signal is evaluated based on the third noise curve.

4. The method according to claim 1, characterized in that The obtaining of a noise assessment result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal includes: In response to at least one of the sound pressure level corresponding to the first noise signal being greater than a first sound pressure level threshold, the sound pressure level corresponding to the first noise signal being greater than a first sound pressure level threshold, or the sound pressure level corresponding to the first noise signal being greater than the first sound pressure level threshold, a noise assessment result is obtained indicating that noise control inside the vehicle does not meet standards.

5. The method according to claim 4, characterized in that After obtaining the noise assessment result indicating that the noise control inside the vehicle does not meet the standard, the method further includes: In response to obtaining the noise assessment result indicating that the noise control inside the vehicle does not meet the standard, a prompt message is issued to reduce the noise inside the vehicle.

6. The method according to claim 1, characterized in that The obtaining of the detection result of the vehicle preparation state includes: Obtaining a first detection result, a second detection result, and a third detection result, wherein the first detection result is used to indicate whether the air pressure of the tire is greater than the air pressure threshold, the second detection result is used to indicate whether the state of charge SOC of the power battery reaches a preset level, and the third detection result is used to indicate whether the engine is started and reaches a preset temperature; In response to obtaining a first detection result indicating that the air pressure of the tire is greater than the air pressure threshold, a second detection result indicating that the SOC of the power battery reaches the preset level, and a third detection result indicating that the engine is started and reaches the preset temperature, a vehicle readiness state detection result indicating that the vehicle has reached the ready state is obtained.

7. A noise evaluation device, characterized in that: The device comprises: A first acquisition module, used to acquire a detection result of a vehicle preparation state, wherein the detection result of the vehicle preparation state is used to indicate whether the vehicle has reached a preparation state; a collection module, configured to collect, in response to obtaining a vehicle preparation state detection result indicating that the vehicle has reached the preparation state, a first noise signal at a first preset position on the left side of a main driver, a second noise signal at a second preset position on the right side of a rear seat, and a third noise signal at a preset distance near an electric drive assembly controller; an identification module, configured to identify a first carrier frequency of the first noise signal, a second carrier frequency of the second noise signal, and a third carrier frequency of the third noise signal; an evaluation module, configured to evaluate a sound pressure level corresponding to the first noise signal, a sound pressure level corresponding to the second noise signal, and a sound pressure level corresponding to the third noise signal based on the first carrier frequency, the second carrier frequency, and the third carrier frequency; The second acquisition module is used to obtain a noise evaluation result based on the sound pressure level corresponding to the first noise signal, the sound pressure level corresponding to the second noise signal, and the sound pressure level corresponding to the third noise signal, wherein the noise evaluation result is used to indicate whether the noise control inside the vehicle meets the standard.

8. The device according to claim 7, characterized in that The identification module is used to obtain a first chromatogram corresponding to the first noise signal, a second chromatogram corresponding to the second noise signal, and a third chromatogram corresponding to the third noise signal; identify the first carrier frequency based on the first chromatogram, identify the second carrier frequency based on the second chromatogram, and identify the third carrier frequency based on the third chromatogram.

9. A computer program product, comprising computer instructions, wherein when the computer instructions are executed by a processor, the noise evaluation method according to any one of claims 1 to 6 is implemented.

10. A non-transitory computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is loaded and executed by a processor to implement the noise evaluation method according to any one of claims 1 to 6.

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