Vehicle noise reduction method and device, computer device and storage medium

Abstract

The application relates to a vehicle noise reduction method and device, computer equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring a noise spectrum of a vehicle based on a first parameter set and a second parameter set of the vehicle through a sound wave collector; determining position noise generated at a vehicle seating position according to the noise spectrum; acquiring a noise suppression instruction according to the position noise and the type of the vehicle; and controlling a noise suppression device to generate noise suppression sound waves and reducing noise of the vehicle through the noise suppression sound waves. The method can improve the efficiency of active noise reduction of the vehicle.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobiles, in particular to a vehicle noise reduction method and device, computer equipment and a storage medium. BACKGROUND

[0002] With the development of society, people's living standards gradually improve, and the comfort requirements of commercial vehicles are getting higher and higher. Noise is one of the important factors affecting comfort. Engine noise, air conditioner noise, tire noise, and wind noise during high-speed driving of commercial vehicles affect the perception of drivers and passengers.

[0003] In related technologies, active noise control (ANC) technology is often used to reduce the noise of commercial vehicles and other types of vehicles. ANC can reduce some interior noise, but the effect is not obvious. Moreover, ANC requires the addition of multiple sound wave collectors in the vehicle, which is relatively costly. Therefore, ANC technology is not suitable for low-cost vehicles. Low-cost vehicles have few soundproof measures, resulting in low noise reduction efficiency and high interior noise. Therefore, there is an urgent need for a vehicle noise reduction method. SUMMARY

[0004] Therefore, it is necessary to provide a vehicle noise reduction method, device, computer equipment, computer readable storage medium and computer program product to solve the above technical problems.

[0005] In a first aspect, the present application provides a vehicle noise reduction method. The method comprises:

[0006] acquiring a noise spectrum of the vehicle based on a first parameter set and a second parameter set of the vehicle by a sound wave collector; the noise spectrum includes an engine noise spectrum, a tire noise spectrum, a structure noise spectrum, and an air conditioner noise spectrum; the first parameter set includes tire mileage, tire model, vehicle maintenance status, and current driving road status; the second parameter set includes vehicle driving mileage, engine age, engine speed, vehicle speed, and air conditioner status;

[0007] determining position noise generated at a vehicle seating position according to the noise spectrum; the position noise includes driving position noise, copilot position noise, and sleeper position noise;

[0008] obtaining a noise suppression instruction according to the position noise and the type of the vehicle; the type includes a first type, a second type, and a third type; the cost of the first type of vehicle is lower than the cost of the second type of vehicle, and the cost of the second type of vehicle is lower than the cost of the third type of vehicle;

[0009] According to the noise suppression instruction, the noise suppression device generates a noise suppression sound wave, and the vehicle is de-noised by the noise suppression sound wave; the noise suppression device of the first type of vehicle is a vehicle-mounted speaker, and the noise suppression devices of the second type of vehicle and the third type of vehicle are both sound wave generators.

[0010] In one of the embodiments, the type of the vehicle is the first type; the noise suppression instruction is obtained according to the position noise and the vehicle type, including:

[0011] The noise reduction demand of the vehicle is determined as the first type of noise reduction demand;

[0012] According to the first type of noise reduction demand, the noise reduction mode of the vehicle is determined, and the noise reduction mode includes a driving position noise reduction mode, a copilot position noise reduction mode, a sleeper position noise reduction mode and an equalization noise reduction mode; wherein, the equalization noise reduction mode refers to simultaneously de-noising the driving position and the copilot position, or simultaneously de-noising the driving position and the sleeper position;

[0013] According to the noise reduction mode, the noise suppression instruction is outputted.

[0014] In one of the embodiments, before the noise suppression instruction is outputted according to the noise reduction mode, including:

[0015] The position of the noise reduction point corresponding to the noise reduction mode is determined;

[0016] If the noise reduction mode is the driving position noise reduction mode, the noise reduction point is located at the driving position;

[0017] If the noise reduction mode is the copilot position noise reduction mode, the noise reduction point is located at the copilot position;

[0018] If the noise reduction mode is the equalization noise reduction mode, the noise reduction point is located at the sleeper position.

[0019] In one of the embodiments, the type of the vehicle is the second type; the noise suppression instruction is outputted according to the position noise and the type of the vehicle, including:

[0020] The noise reduction demand of the vehicle is determined as the second type of noise reduction demand, and the second type of noise reduction demand includes a position noise reduction demand and a multi-position noise reduction demand, and the multi-position noise reduction demand refers to the noise reduction demand of at least two positions;

[0021] According to the second type of noise reduction demand, the noise reduction position is determined, and the noise reduction position includes a driving position, a copilot position and a sleeper position;

[0022] According to the noise reduction position, the noise suppression instruction is outputted.

[0023] In one of the embodiments, the type of the vehicle is the third type; the third type of vehicle is installed with a wind speed sensor; the noise spectrum of the vehicle is obtained according to the sound wave collector and the first parameter set and the second parameter set of the vehicle, including:

[0024] According to the wind speed sensor, the forward wind speed, the left lateral wind speed and the right lateral wind speed of the vehicle are acquired;

[0025] According to the forward wind speed, the left lateral wind speed and the right lateral wind speed, the integrated wind speed is determined;

[0026] According to the vehicle speed and the integrated wind speed, the relative vehicle speed is determined;

[0027] According to the relative vehicle speed, the sound wave collector, the first parameter set and the second parameter set, the noise spectrum of the vehicle is acquired.

[0028] In one of the embodiments, the sound wave generators are respectively installed at the co-driver position, the driver position and the sleeper position; wherein the number of the sound wave generators installed at the co-driver position and the driver position is at least two, and the number of the sound wave generators installed at the sleeper position is at least one.

[0029] In a second aspect, the present application further provides a vehicle noise reduction device. The device comprises:

[0030] The first acquisition module is configured to acquire the noise spectrum of the vehicle based on the first parameter set and the second parameter set of the vehicle through the sound wave collector; the noise spectrum comprises the engine noise spectrum, the tire noise spectrum, the structure noise spectrum and the air conditioner noise spectrum; the first parameter set comprises the tire mileage, the tire model, the vehicle maintenance state and the current driving road state; the second parameter set comprises the vehicle driving mileage, the engine age, the engine speed, the vehicle speed and the air conditioner state;

[0031] The determination module is configured to determine the position noise generated at the vehicle seating position according to the noise spectrum; the position noise comprises the driver position noise, the co-driver position noise and the sleeper position noise;

[0032] The second acquisition module is configured to acquire the noise reduction instruction according to the position noise and the type of the vehicle; the type comprises the first type, the second type and the third type; the cost of the first type vehicle is lower than that of the second type vehicle, and the cost of the second type vehicle is lower than that of the third type vehicle;

[0033] The control module is configured to control the noise reduction device to generate the noise reduction sound wave and reduce the noise of the vehicle through the noise reduction sound wave according to the noise reduction instruction; the noise reduction device of the first type vehicle is the vehicle-mounted loudspeaker, and the noise reduction devices of the second type vehicle and the third type vehicle are the sound wave generators.

[0034] In a third aspect, the present application further provides a computer device. The computer device comprises a memory and a processor; the memory stores a computer program; and the processor implements the following steps when executing the computer program:

[0035] acquire a noise spectrum of the vehicle based on a first parameter set and a second parameter set of the vehicle through the sound wave collector; the noise spectrum comprises an engine noise spectrum, a tire noise spectrum, a structure noise spectrum and an air conditioner noise spectrum; the first parameter set comprises tire mileage, tire model, vehicle maintenance state and current driving road state; the second parameter set comprises vehicle driving mileage, engine age, engine speed, vehicle speed and air conditioner state;

[0036] determine position noise generated at a vehicle seating position according to the noise spectrum; the position noise comprises driving position noise, co-driver position noise and sleeper position noise;

[0037] acquire a noise suppression instruction according to the position noise and a type of the vehicle; the type comprises a first type, a second type and a third type; the cost of the first type of vehicle is lower than the cost of the second type of vehicle, and the cost of the second type of vehicle is lower than the cost of the third type of vehicle;

[0038] control a noise suppression device to generate noise suppression sound waves and reduce noise of the vehicle through the noise suppression sound waves according to the noise suppression instruction; the noise suppression device of the first type of vehicle is a vehicle-mounted loudspeaker, and the noise suppression devices of the second type of vehicle and the third type of vehicle are both sound wave generators.

[0039] In a fourth aspect, the present application also provides a computer readable storage medium. The computer readable storage medium has a computer program stored thereon, and the computer program is executed by a processor to implement the following steps:

[0040] acquire a noise spectrum of the vehicle based on a first parameter set and a second parameter set of the vehicle through the sound wave collector; the noise spectrum comprises an engine noise spectrum, a tire noise spectrum, a structure noise spectrum and an air conditioner noise spectrum; the first parameter set comprises tire mileage, tire model, vehicle maintenance state and current driving road state; the second parameter set comprises vehicle driving mileage, engine age, engine speed, vehicle speed and air conditioner state;

[0041] determine position noise generated at a vehicle seating position according to the noise spectrum; the position noise comprises driving position noise, co-driver position noise and sleeper position noise;

[0042] acquire a noise suppression instruction according to the position noise and a type of the vehicle; the type comprises a first type, a second type and a third type; the cost of the first type of vehicle is lower than the cost of the second type of vehicle, and the cost of the second type of vehicle is lower than the cost of the third type of vehicle;

[0043] control a noise suppression device to generate noise suppression sound waves and reduce noise of the vehicle through the noise suppression sound waves according to the noise suppression instruction; the noise suppression device of the first type of vehicle is a vehicle-mounted loudspeaker, and the noise suppression devices of the second type of vehicle and the third type of vehicle are both sound wave generators.

[0044] In a fifth aspect, the present application also provides a computer program product. The computer program product comprises a computer program which, when executed by a processor, implements the following steps:

[0045] The noise spectrum of the vehicle is acquired by the sound wave collector based on the first parameter set and the second parameter set of the vehicle; the noise spectrum comprises an engine noise spectrum, a tire noise spectrum, a structure noise spectrum, and an air conditioner noise spectrum; the first parameter set comprises tire mileage, tire model, vehicle maintenance status, and current driving road status; the second parameter set comprises vehicle driving mileage, engine age, engine speed, vehicle speed, and air conditioner status;

[0046] The position noise generated at the vehicle seating position is determined according to the noise spectrum; the position noise comprises driving position noise, copilot position noise, and sleeper position noise;

[0047] The noise suppression instruction is acquired according to the position noise and the type of the vehicle; the type comprises a first type, a second type, and a third type; the cost of the first type of vehicle is lower than that of the second type of vehicle, and the cost of the second type of vehicle is lower than that of the third type of vehicle;

[0048] The noise suppression device is controlled to generate noise suppression sound waves, and the vehicle is de-noised by the noise suppression sound waves according to the noise suppression instruction; the noise suppression device of the first type of vehicle is a vehicle-mounted loudspeaker, and the noise suppression devices of the second type of vehicle and the third type of vehicle are both sound wave generators.

[0049] The vehicle de-noising method, device, computer equipment, storage medium, and computer program product described above acquire the noise spectrum of the vehicle by the sound wave collector based on the first parameter set and the second parameter set of the vehicle; determine the position noise generated at the vehicle seating position according to the noise spectrum; acquire the noise suppression instruction according to the position noise and the type of the vehicle; and control the noise suppression device to generate noise suppression sound waves, and de-noise the vehicle by the noise suppression sound waves according to the noise suppression instruction; the accuracy of acquiring the noise source of the vehicle can be improved, thereby improving the efficiency of active de-noising of the vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0050] Figure 1 It is a flowchart of the vehicle de-noising method in one embodiment;

[0051] Figure 2 It is a schematic diagram of the installation position of the sound wave collector in one embodiment;

[0052] Figure 3 It is a schematic diagram of the acquisition of the tire noise spectrum in one embodiment;

[0053] Figure 4 It is a schematic diagram of the acquisition of the engine noise spectrum in one embodiment;

[0054] Figure 5This is a schematic diagram illustrating the acquisition of an air conditioner noise spectrum in one embodiment;

[0055] Figure 6 This is a schematic diagram illustrating the acquisition of the relative vehicle speed noise spectrum in one embodiment;

[0056] Figure 7 This is a schematic diagram illustrating the acquisition of the structural noise spectrum in one embodiment;

[0057] Figure 8 This is a schematic diagram of the installation location of the vehicle speaker in one embodiment;

[0058] Figure 9 This is a schematic diagram of the first equalization mode in one embodiment;

[0059] Figure 10 This is a schematic diagram of the second equalization mode in one embodiment;

[0060] Figure 11 This is a schematic diagram of noise reduction points in the driver's position noise reduction mode in one embodiment;

[0061] Figure 12 This is a schematic diagram of the noise reduction points in the noise reduction mode for the passenger seat in one embodiment.

[0062] Figure 13 This is a schematic diagram of the noise reduction points in the noise reduction mode of the lower berth position in one embodiment;

[0063] Figure 14 This is a schematic diagram of the installation location of the sound wave generator in one embodiment;

[0064] Figure 15 This is a schematic diagram showing the installation location of the wind speed sensor in one embodiment;

[0065] Figure 16 This is a flowchart illustrating a vehicle noise reduction method in another embodiment;

[0066] Figure 17 This is a structural block diagram of a vehicle noise reduction device in one embodiment;

[0067] Figure 18 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0069] It is understood that the terms "first," "second," etc., used in this application may be used to describe various technical terms, but unless otherwise specified, these technical terms are not limited to these terms. These terms are only used to distinguish one technical term from another. For example, without departing from the scope of this application, the third preset threshold and the fourth preset threshold may be the same or different.

[0070] In one embodiment, such as Figure 1 As shown, a vehicle noise reduction method is provided. This embodiment illustrates the application of this method to a terminal, where the terminal can be, but is not limited to, various personal computers, laptops, smartphones, tablets, IoT devices, and portable wearable devices. IoT devices can be smart in-vehicle devices, etc. It is understood that this method can also be applied to a server, and further to a system including both a terminal and a server, and implemented through interaction between the terminal and the server. In this embodiment, the method includes the following steps:

[0071] 101. Using a sound wave acquisition device, the noise spectrum of the vehicle is obtained based on the first and second parameter sets of the vehicle. The noise spectrum includes engine noise spectrum, tire noise spectrum, structural noise spectrum and air conditioning noise spectrum. The first parameter set includes tire mileage, tire model, vehicle maintenance status and current road conditions. The second parameter set includes vehicle mileage, engine age, engine speed, vehicle speed and air conditioning status.

[0072] 102. Based on the noise spectrum, determine the location noise generated at the vehicle's seating positions. Location noise includes noise from the driver's seat, the front passenger seat, and the sleeper berth.

[0073] 103. Obtain noise suppression instructions based on location noise and vehicle type, including Category 1, Category 2, and Category 3; the cost of Category 1 vehicles is lower than that of Category 2 vehicles, and the cost of Category 2 vehicles is lower than that of Category 3 vehicles.

[0074] 104. According to the noise suppression command, control the noise suppression equipment to generate noise suppression waves, and reduce vehicle noise through the noise suppression waves; the noise suppression equipment for the first type of vehicle is a vehicle-mounted speaker, and the noise suppression equipment for the second and third types of vehicles is a sound wave generator.

[0075] In step 101 above, the sound wave collector is used to detect noise inside the vehicle during driving. This embodiment of the invention does not specifically limit the installation location of the sound wave collector; the installation location can be selected according to actual needs. For example... Figure 2As shown, the installation locations of the acoustic wave collector include: both ends of the headrest of the driver's seat, both ends of the headrest of the passenger seat, and the center of the headrest of the sleeper berth. This embodiment of the invention does not specifically limit the type of vehicle, including commercial vehicles and other types of vehicles.

[0076] In addition, in step 101 above, the first parameter refers to external parameters, and all parameters in the first parameter set can be input into the vehicle's computer by the driver. The current road condition includes asphalt roads, concrete roads, and dirt roads, etc. The second parameter refers to internal vehicle parameters, and all parameters in the second parameter set can be automatically acquired by the vehicle's computer. Air conditioning status refers to the operating mode of the vehicle's air conditioning; different operating modes correspond to different air conditioning noise profiles. Furthermore, the first parameter set also includes the outside temperature and the measured integrated wind speed, while the second parameter set also includes the vehicle's diagnostic status and overall vehicle mode.

[0077] It is worth mentioning that any of the engine noise spectrum, tire noise spectrum, structural noise spectrum, and air conditioning noise spectrum is obtained by collecting driver's binaural noise, front passenger's binaural noise, and sleeper berth head noise through a sound wave acquisition device. Driver noise model, front passenger noise model, and sleeper berth noise model are then derived from these noise sources. Finally, based on these models, the corresponding noise spectrum is calculated. The vehicle's computer determines noise suppression instructions based on the stored algorithm and noise spectrum. The algorithm stored in the vehicle's computer can be updated and upgraded as needed.

[0078] like Figure 3 As shown, tire noise profiles can be obtained based on tire model and current road conditions; for example... Figure 4 As shown, the engine noise profile can be obtained based on engine speed, engine age, vehicle mileage, and vehicle diagnostic status. Figure 5 As shown, the air conditioning noise spectrum can be obtained based on the air conditioning mode (including the set temperature), the outside temperature, and the integrated fan speed. Figure 6 As shown, the relative vehicle speed noise profile can be obtained based on the vehicle speed and the measured integrated wind speed. Figure 7 As shown, the structural noise spectrum can be obtained based on the vehicle's modal data.

[0079] Specifically, the vehicle computer can calculate the noise spectrum of the vehicle based on the first parameter set, the second parameter set, and the data collected by the sound wave acquisition device. Based on the noise spectrum of the vehicle, the preset algorithm, and the noise reduction mode set by the vehicle, it outputs a noise suppression command. The sound wave generator or the vehicle speaker generates noise reduction waves according to the noise suppression command to reduce noise in the vehicle.

[0080] The method provided in this invention can determine precise noise reduction commands by using external parameters, vehicle internal parameters, and vehicle noise reduction modes, thereby achieving noise reduction for different types of vehicles, improving the accuracy of vehicle noise reduction, and ultimately enhancing the comfort of drivers and passengers.

[0081] In one embodiment, the vehicle type is Class 1; based on the location noise and the vehicle model, noise suppression instructions are obtained, including:

[0082] The noise reduction requirements of the vehicle are identified as the first type of noise reduction requirement;

[0083] Based on the first type of noise reduction requirements, the noise reduction mode of the vehicle is determined. The noise reduction modes include driver position noise reduction mode, passenger position noise reduction mode, sleeper position noise reduction mode and balanced noise reduction mode. Balanced noise reduction mode refers to simultaneously reducing noise in the driver position and passenger position, or simultaneously reducing noise in the driver position and sleeper position.

[0084] Output noise reduction commands based on the noise reduction mode.

[0085] The noise reduction requirements include individual noise reduction for the driver, individual noise reduction for the front passenger, individual noise reduction for the lower berth, and balanced noise reduction. Individual noise reduction for the driver refers to noise reduction only for the driver's location; individual noise reduction for the front passenger refers to noise reduction only for the front passenger's location; and individual noise reduction for the lower berth refers to noise reduction only for the lower berth's location.

[0086] The present invention does not specifically limit the installation location of the vehicle-mounted speakers for the first type of vehicle; the installation location can be determined according to actual needs. For example, ... Figure 8 As shown, the two car speakers can be installed on the driver's and passenger's sides respectively.

[0087] Specifically, the vehicle's computer determines the noise reduction location based on the vehicle's first type of noise reduction requirements, and then controls the vehicle's audio system by outputting noise suppression commands, thereby controlling the vehicle speakers to output noise reduction waves, which are used to reduce noise.

[0088] Specifically, by determining the noise reduction requirements of the first type of vehicle, the vehicle's onboard speakers are controlled, thereby achieving noise reduction for the first type of vehicle and making the noise reduction for the first type of vehicle more targeted.

[0089] In one embodiment, before outputting the noise suppression command, depending on the noise reduction mode, the following is included:

[0090] Determine the location of the noise reduction point corresponding to the noise reduction mode;

[0091] If the noise cancellation mode is the driver's position noise cancellation mode, then the noise cancellation point is located at the driver's position;

[0092] If the noise cancellation mode is set to passenger seat noise cancellation mode, then the noise cancellation point is located at the passenger seat.

[0093] If the noise reduction mode is set to balanced noise reduction mode, the noise reduction point is located at the sleeper berth.

[0094] The equalization noise reduction mode includes a first equalization mode and a second equalization mode. The first equalization mode is as follows: Figure 9 As shown, it simultaneously reduces noise in both the driver's and passenger's seats; therefore, the noise reduction point is located midway between the headrests of the driver's and passenger's seats. The second equalization mode is as follows... Figure 10 As shown, it reduces noise in both the driver's and sleeper positions simultaneously. Therefore, the noise reduction point is located in the middle of the headrest of the driver's position and the headrest of the sleeper position.

[0095] Specifically, the noise-canceling waves emitted by car speakers are targeted, reducing noise at a specific point. Therefore, it's necessary to determine the corresponding noise reduction point based on the noise reduction mode. The noise suppression effect is best at the noise reduction point. Figure 11 As shown, if the noise cancellation mode is set to driver's seat noise cancellation mode, the noise cancellation point is located in the middle of the headrest area in the driver's seat; as Figure 12 As shown, if the noise cancellation mode is set to passenger seat noise cancellation mode, the noise cancellation point is located in the middle of the headrest area on the passenger seat. Figure 13 As shown, if the noise reduction mode is the lower berth position noise reduction mode, the noise reduction point is in the middle of the head in the lower berth position.

[0096] The method provided in this invention can improve the accuracy of vehicle noise reduction and thus improve the efficiency of vehicle noise reduction by determining the location of the noise reduction point corresponding to the noise reduction mode.

[0097] In one embodiment, the vehicle type is Class 2; based on the location noise and the vehicle type, noise suppression instructions are output, including:

[0098] The noise reduction requirements of the vehicle are determined as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. Multi-location noise reduction requirements refer to noise reduction requirements at least two locations.

[0099] Based on the second type of noise reduction requirements, the noise reduction locations are determined, including the driver's seat, the front passenger seat, and the sleeper berth.

[0100] Output noise reduction commands based on the noise reduction location.

[0101] Specifically, single-position noise reduction requirements for a vehicle refer to any one of the following: noise reduction requirements for the driver's seat, the front passenger seat, or the lower berth. Multi-position noise reduction requirements refer to any one of the following: simultaneous noise reduction for the driver and front passenger seats, simultaneous noise reduction for the driver and lower berth, simultaneous noise reduction for the lower berth and front passenger seats, or simultaneous noise reduction for the driver, front passenger, and lower berth. The installation location of the sound generator in the second type of vehicle is as follows... Figure 14 As shown, when there is a noise reduction requirement at any location, the vehicle computer outputs a noise suppression command to control the sound wave generator at the corresponding location to reduce noise at that location.

[0102] The method provided in this embodiment of the invention can determine the noise reduction position by determining the noise reduction requirements of the vehicle, and then control the sound wave generator at the corresponding position to output noise reduction wave according to the noise reduction position, thereby improving the noise reduction efficiency of the vehicle.

[0103] In one embodiment, the vehicle type is Class 3; the Class 3 vehicle is equipped with a wind speed sensor; the noise profile of the vehicle is obtained based on the sound wave collector and the vehicle's first and second parameter sets, including:

[0104] Based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained;

[0105] Determine the integrated wind speed based on the forward wind speed, left-side wind speed, and right-side wind speed;

[0106] The relative vehicle speed is determined based on the vehicle speed and the combined wind speed.

[0107] The noise profile of the vehicle is obtained based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set.

[0108] The installation location of the sound wave generator in the third type of vehicle is as follows: Figure 14 As shown, the installation location of the wind speed sensor is as follows: Figure 15 As shown. Specifically, the left-side wind speed sensor measures the left-side wind speed, the right-side wind speed sensor measures the right-side wind speed, and the frontal wind speed sensor measures the frontal wind speed. The wind speed sensors send the measured wind speeds to the vehicle's computer. Once the vehicle's computer determines the relative vehicle speed, it can determine the relative vehicle speed noise spectrum based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set.

[0109] The method provided in this embodiment of the invention can determine the relative vehicle speed noise spectrum of a vehicle by using relative vehicle speed, a sound wave collector, a first parameter set, and a second parameter set.

[0110] In one embodiment, the sound wave generators are respectively installed in the passenger seat, driver's seat, and sleeper berth; wherein, at least two sound wave generators are installed in the passenger seat and driver's seat, and at least one sound wave generator is installed in the sleeper berth.

[0111] Specifically, at least one sound wave generator is installed at each end of the headrest in the passenger seat and at each end of the headrest in the driver's seat.

[0112] The method provided in this invention improves the noise reduction accuracy of the sound wave generator by installing at least one sound wave generator at each end of the headrest in the passenger seat and the headrest in the driver seat.

[0113] In one embodiment, such as Figure 16 As shown, a vehicle noise reduction method further includes:

[0114] 1601. By using external parameters, internal parameters, and sound wave acquisition devices during vehicle operation, the noise spectrum of a vehicle can be determined. The noise spectrum includes engine noise spectrum, tire noise spectrum, structural noise spectrum, air conditioning noise spectrum, and relative vehicle speed noise spectrum.

[0115] 1602. Obtain noise suppression instructions for the vehicle based on its type and noise spectrum; the vehicle types include low-end models, mid-range models, and high-end models; the noise suppression device for low-end models is an onboard speaker; the noise suppression device for mid-range and high-end models is a sound wave generator.

[0116] 1603. The vehicle reduces noise by controlling the noise suppression equipment according to the noise suppression command.

[0117] The method provided in this invention enables low-, mid-, and high-end vehicle models to have active noise reduction functionality through differentiated noise reduction schemes.

[0118] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0119] Based on the same inventive concept, this application also provides a vehicle noise reduction device for implementing the vehicle noise reduction method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of one or more vehicle noise reduction device embodiments provided below can be found in the limitations of the vehicle noise reduction method described above, and will not be repeated here.

[0120] In one embodiment, such as Figure 17 As shown, a vehicle noise reduction device is provided, including: a first acquisition module 1701, a determination module 1702, a second acquisition module 1703, and a control module 1704, wherein:

[0121] The first acquisition module 1701 is used to acquire the noise spectrum of the vehicle based on the first parameter set and the second parameter set of the vehicle through a sound wave collector; the noise spectrum includes engine noise spectrum, tire noise spectrum, structural noise spectrum and air conditioning noise spectrum; the first parameter set includes tire mileage, tire model, vehicle maintenance status and current road conditions; the second parameter set includes vehicle mileage, engine age, engine speed, vehicle speed and air conditioning status.

[0122] The determination module 1702 is used to determine the location noise generated at the vehicle's seating position based on the noise pattern spectrum. The location noise includes noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth.

[0123] The second acquisition module 16703 is used to acquire noise suppression instructions based on the location noise and the vehicle type, including Class 1, Class 2 and Class 3; the cost of Class 1 vehicles is lower than that of Class 2 vehicles, and the cost of Class 2 vehicles is lower than that of Class 3 vehicles;

[0124] The control module 1704 is used to control the noise suppression device to generate noise suppression waves according to the noise suppression command, and to reduce vehicle noise through the noise suppression waves; the noise suppression device for the first type of vehicle is an on-board speaker, and the noise suppression device for the second and third types of vehicles is a sound wave generator.

[0125] In one embodiment, the second acquisition module 1703 includes:

[0126] The first determination submodule is used to determine the noise reduction requirements of the vehicle, which are classified as the first type of noise reduction requirements.

[0127] The second determining submodule is used to determine the noise reduction mode of the vehicle based on the first type of noise reduction requirements. The noise reduction modes include driver position noise reduction mode, passenger position noise reduction mode, sleeper position noise reduction mode and balanced noise reduction mode. Among them, the balanced noise reduction mode refers to simultaneously reducing noise in the driver position and passenger position, or simultaneously reducing noise in the driver position and sleeper position.

[0128] The first output submodule is used to output noise reduction commands according to the noise reduction mode.

[0129] In one embodiment, the first output submodule includes:

[0130] The determining unit is used to determine the location of the noise reduction point corresponding to the noise reduction mode; if the noise reduction mode is the driver's position noise reduction mode, the noise reduction point is located in the driver's position; if the noise reduction mode is the passenger's position noise reduction mode, the noise reduction point is located in the passenger's position; if the noise reduction mode is the balanced noise reduction mode, the noise reduction point is located in the sleeper position.

[0131] In one embodiment, the second acquisition module 1703 further includes:

[0132] The third determination submodule is used to determine the noise reduction requirements of the vehicle as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. Multi-location noise reduction requirements refer to noise reduction requirements at least two locations.

[0133] The fourth determination submodule is used to determine the noise reduction location based on the second type of noise reduction requirements. The noise reduction location includes the driver's seat, the front passenger seat, and the sleeper berth.

[0134] The second output submodule is used to output noise suppression commands based on the noise reduction location.

[0135] In one embodiment, the first acquisition module 1701 includes:

[0136] The first acquisition submodule is used to acquire the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed based on the wind speed sensor.

[0137] The fifth determination submodule is used to determine the integrated wind speed based on the forward wind speed, left-side wind speed, and right-side wind speed;

[0138] The sixth submodule is used to determine the relative vehicle speed based on the vehicle speed and the integrated wind speed.

[0139] The second acquisition submodule is used to acquire the noise spectrum of the vehicle based on the relative vehicle speed, the sound wave collector, the first parameter set, and the second parameter set.

[0140] In one embodiment, the vehicle noise reduction device further includes:

[0141] The mounting module is used to install sound wave generators in the front passenger seat, driver's seat, and sleeper berth. At least two sound wave generators are installed in the front passenger seat and driver's seat, and at least one sound wave generator is installed in the sleeper berth.

[0142] Each module in the aforementioned vehicle noise reduction device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0143] In one embodiment, a computer device is provided, which may be a terminal, and its internal structure diagram may be as follows: Figure 18 As shown, the computer device includes a processor, memory, communication interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The communication interface is used for wired or wireless communication with external terminals; wireless communication can be achieved through Wi-Fi, mobile cellular networks, NFC (Near Field Communication), or other technologies. When the computer program is executed by the processor, it implements a vehicle noise reduction method. The display screen can be an LCD screen or an e-ink screen. The input devices can be a touch layer covering the display screen, buttons, a trackball, or a touchpad on the computer device's casing, or an external keyboard, touchpad, or mouse.

[0144] Those skilled in the art will understand that Figure 18 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0145] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps:

[0146] The noise profile of a vehicle is obtained by using a sound wave acquisition device based on a first set of parameters and a second set of parameters. The noise profile includes engine noise profile, tire noise profile, structural noise profile and air conditioning noise profile. The first set of parameters includes tire mileage, tire model, vehicle maintenance status and current road conditions. The second set of parameters includes vehicle mileage, engine age, engine speed, vehicle speed and air conditioning status.

[0147] Based on the noise spectrum, determine the location noise generated at the vehicle's seating position. Location noise includes noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth.

[0148] Based on the location noise and vehicle type, noise suppression instructions are obtained. The types include Category 1, Category 2, and Category 3. The cost of Category 1 vehicles is lower than that of Category 2 vehicles, and the cost of Category 2 vehicles is lower than that of Category 3 vehicles.

[0149] According to the noise suppression command, the noise suppression device is controlled to generate noise suppression waves, and the noise of the vehicle is reduced through the noise suppression waves; the noise suppression device of the first type of vehicle is a vehicle-mounted speaker, and the noise suppression device of the second and third types of vehicles is a sound wave generator.

[0150] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0151] The noise reduction requirements of the vehicle are identified as the first type of noise reduction requirement;

[0152] Based on the first type of noise reduction requirements, the noise reduction modes of the vehicle are determined. The noise reduction modes include driver's seat noise reduction mode, passenger seat noise reduction mode, sleeper berth noise reduction mode and balanced noise reduction mode. Among them, balanced noise reduction mode refers to noise reduction of both driver's seat and passenger seat, or noise reduction of both driver's seat and sleeper berth.

[0153] Output noise reduction commands based on the noise reduction mode.

[0154] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0155] Determine the location of the noise reduction point corresponding to the noise reduction mode;

[0156] If the noise cancellation mode is the driver's position noise cancellation mode, then the noise cancellation point is located at the driver's position;

[0157] If the noise cancellation mode is set to passenger seat noise cancellation mode, then the noise cancellation point is located at the passenger seat.

[0158] If the noise reduction mode is set to balanced noise reduction mode, the noise reduction point is located at the sleeper berth.

[0159] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0160] The noise reduction requirements of the vehicle are determined as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. Multi-location noise reduction requirements refer to noise reduction requirements at least two locations.

[0161] Based on the second type of noise reduction requirements, the noise reduction locations are determined, including the driver's seat, the front passenger seat, and the sleeper berth.

[0162] Output noise reduction commands based on the noise reduction location.

[0163] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0164] Based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained;

[0165] Determine the integrated wind speed based on the forward wind speed, left-side wind speed, and right-side wind speed;

[0166] The relative vehicle speed is determined based on the vehicle speed and the combined wind speed.

[0167] The noise profile of the vehicle is obtained based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set.

[0168] In one embodiment, the processor, when executing a computer program, also performs the following steps:

[0169] The sound wave generator is controlled to execute noise suppression commands, wherein the sound wave generator is installed in the passenger seat, driver's seat and sleeper berth respectively; wherein the number of sound wave generators installed in the passenger seat and driver's seat is at least two, and the number of sound wave generators installed in the sleeper berth is at least one.

[0170] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0171] The noise profile of a vehicle is obtained by using a sound wave acquisition device based on a first set of parameters and a second set of parameters. The noise profile includes engine noise profile, tire noise profile, structural noise profile and air conditioning noise profile. The first set of parameters includes tire mileage, tire model, vehicle maintenance status and current road conditions. The second set of parameters includes vehicle mileage, engine age, engine speed, vehicle speed and air conditioning status.

[0172] Based on the noise spectrum, determine the location noise generated at the vehicle's seating position. Location noise includes noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth.

[0173] Based on the location noise and vehicle type, noise suppression instructions are obtained. The types include Category 1, Category 2, and Category 3. The cost of Category 1 vehicles is lower than that of Category 2 vehicles, and the cost of Category 2 vehicles is lower than that of Category 3 vehicles.

[0174] According to the noise suppression command, the noise suppression device is controlled to generate noise suppression waves, and the noise of the vehicle is reduced through the noise suppression waves; the noise suppression device of the first type of vehicle is a vehicle-mounted speaker, and the noise suppression device of the second and third types of vehicles is a sound wave generator.

[0175] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0176] The noise reduction requirements of the vehicle are identified as the first type of noise reduction requirement;

[0177] Based on the first type of noise reduction requirements, the noise reduction modes of the vehicle are determined. The noise reduction modes include driver's seat noise reduction mode, passenger seat noise reduction mode, sleeper berth noise reduction mode and balanced noise reduction mode. Among them, balanced noise reduction mode refers to noise reduction of both driver's seat and passenger seat, or noise reduction of both driver's seat and sleeper berth.

[0178] Output noise reduction commands based on the noise reduction mode.

[0179] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0180] Determine the location of the noise reduction point corresponding to the noise reduction mode;

[0181] If the noise cancellation mode is the driver's position noise cancellation mode, then the noise cancellation point is located at the driver's position;

[0182] If the noise cancellation mode is set to passenger seat noise cancellation mode, then the noise cancellation point is located at the passenger seat.

[0183] If the noise reduction mode is set to balanced noise reduction mode, the noise reduction point is located at the sleeper berth.

[0184] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0185] The noise reduction requirements of the vehicle are determined as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. Multi-location noise reduction requirements refer to noise reduction requirements at least two locations.

[0186] Based on the second type of noise reduction requirements, the noise reduction locations are determined, including the driver's seat, the front passenger seat, and the sleeper berth.

[0187] Output noise reduction commands based on the noise reduction location.

[0188] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0189] Based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained;

[0190] Determine the integrated wind speed based on the forward wind speed, left-side wind speed, and right-side wind speed;

[0191] The relative vehicle speed is determined based on the vehicle speed and the combined wind speed.

[0192] The noise profile of the vehicle is obtained based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set.

[0193] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0194] The sound wave generator is controlled to execute noise suppression commands, wherein the sound wave generator is installed in the passenger seat, driver's seat and sleeper berth respectively; wherein the number of sound wave generators installed in the passenger seat and driver's seat is at least two, and the number of sound wave generators installed in the sleeper berth is at least one.

[0195] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, performs the following steps:

[0196] The noise profile of a vehicle is obtained by using a sound wave acquisition device based on a first set of parameters and a second set of parameters. The noise profile includes engine noise profile, tire noise profile, structural noise profile and air conditioning noise profile. The first set of parameters includes tire mileage, tire model, vehicle maintenance status and current road conditions. The second set of parameters includes vehicle mileage, engine age, engine speed, vehicle speed and air conditioning status.

[0197] Based on the noise spectrum, determine the location noise generated at the vehicle's seating position. Location noise includes noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth.

[0198] Based on the location noise and vehicle type, noise suppression instructions are obtained. The types include Category 1, Category 2, and Category 3. The cost of Category 1 vehicles is lower than that of Category 2 vehicles, and the cost of Category 2 vehicles is lower than that of Category 3 vehicles.

[0199] According to the noise suppression command, the noise suppression device is controlled to generate noise suppression waves, and the noise of the vehicle is reduced through the noise suppression waves; the noise suppression device of the first type of vehicle is a vehicle-mounted speaker, and the noise suppression device of the second and third types of vehicles is a sound wave generator.

[0200] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0201] The noise reduction requirements of the vehicle are identified as the first type of noise reduction requirement;

[0202] Based on the first type of noise reduction requirements, the noise reduction modes of the vehicle are determined. The noise reduction modes include driver's seat noise reduction mode, passenger seat noise reduction mode, sleeper berth noise reduction mode and balanced noise reduction mode. Among them, balanced noise reduction mode refers to noise reduction of both driver's seat and passenger seat, or noise reduction of both driver's seat and sleeper berth.

[0203] Output noise reduction commands based on the noise reduction mode.

[0204] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0205] Determine the location of the noise reduction point corresponding to the noise reduction mode;

[0206] If the noise cancellation mode is the driver's position noise cancellation mode, then the noise cancellation point is located at the driver's position;

[0207] If the noise cancellation mode is set to passenger seat noise cancellation mode, then the noise cancellation point is located at the passenger seat.

[0208] If the noise reduction mode is set to balanced noise reduction mode, the noise reduction point is located at the sleeper berth.

[0209] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0210] The noise reduction requirements of the vehicle are determined as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. Multi-location noise reduction requirements refer to noise reduction requirements at least two locations.

[0211] Based on the second type of noise reduction requirements, the noise reduction locations are determined, including the driver's seat, the front passenger seat, and the sleeper berth.

[0212] Output noise reduction commands based on the noise reduction location.

[0213] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0214] Based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained;

[0215] Determine the integrated wind speed based on the forward wind speed, left-side wind speed, and right-side wind speed;

[0216] The relative vehicle speed is determined based on the vehicle speed and the combined wind speed.

[0217] The noise profile of the vehicle is obtained based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set.

[0218] In one embodiment, when the computer program is executed by a processor, it also performs the following steps:

[0219] The sound wave generator is controlled to execute noise suppression commands, wherein the sound wave generator is installed in the passenger seat, driver's seat and sleeper berth respectively; wherein the number of sound wave generators installed in the passenger seat and driver's seat is at least two, and the number of sound wave generators installed in the sleeper berth is at least one.

[0220] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0221] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to these.

[0222] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0223] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A vehicle noise reduction method, characterized in that, The method includes: Using a sound wave acquisition device, the noise spectrum of the vehicle is obtained based on a first set of parameters and a second set of parameters. The noise spectrum includes engine noise, tire noise, structural noise, and air conditioning noise. The first set of parameters includes tire mileage, tire model, vehicle maintenance status, and current road conditions. The second set of parameters includes vehicle mileage, engine age, engine speed, vehicle speed, and air conditioning status. The air conditioning noise spectrum is generated based on air conditioning mode, outside temperature, and integrated wind speed. The noise spectrum also includes a relative vehicle speed noise spectrum, which is based on vehicle speed and integrated wind speed. Based on the noise spectrum, determine the location noise generated at the vehicle's seating position, including noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth. Based on the location noise and the vehicle type, a noise suppression command is obtained, wherein the types include Class 1, Class 2, and Class 3; the cost of Class 1 vehicles is lower than that of Class 2 vehicles, and the cost of Class 2 vehicles is lower than that of Class 3 vehicles; According to the noise suppression command, the noise suppression device is controlled to generate noise suppression waves, and the noise suppression waves are used to reduce noise in the vehicle; the noise suppression device for the first type of vehicle is an on-board speaker, and the noise suppression devices for the second type of vehicle and the third type of vehicle are both sound wave generators. The step of obtaining the noise spectrum of the vehicle based on the sound wave acquisition device and the vehicle's first and second parameter sets includes: If the vehicle is of type three; and the type three vehicle is equipped with a wind speed sensor; based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained; based on the frontal wind speed, left-side wind speed, and right-side wind speed, an integrated wind speed is determined; based on the vehicle speed and the integrated wind speed, a relative vehicle speed is determined; based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set, the noise spectrum of the vehicle is obtained.

2. The method according to claim 1, characterized in that, The vehicle type is the first type; the step of obtaining noise suppression instructions based on the location noise and the vehicle model includes: The noise reduction requirements of the vehicle are determined as the first type of noise reduction requirements; Based on the first type of noise reduction requirement, the noise reduction mode of the vehicle is determined. The noise reduction mode includes a driver's position noise reduction mode, a passenger's position noise reduction mode, a sleeper position noise reduction mode, and a balanced noise reduction mode. The balanced noise reduction mode refers to simultaneously reducing noise in the driver's position and the passenger's position, or simultaneously reducing noise in the driver's position and the sleeper position. Based on the noise reduction mode, output a noise suppression command.

3. The method according to claim 2, characterized in that, Before outputting the noise suppression command according to the noise reduction mode, the following steps are included: Determine the location of the noise reduction point corresponding to the noise reduction mode; If the noise reduction mode is the driving position noise reduction mode, then the noise reduction point is located in the driving position; If the noise reduction mode is the passenger seat noise reduction mode, then the noise reduction point is located at the passenger seat. If the noise reduction mode is the balanced noise reduction mode, then the noise reduction point is located at the sleeper berth position.

4. The method according to claim 1, characterized in that, The vehicle type is the second type; based on the location noise and the vehicle type, a noise suppression command is output, including: The noise reduction requirements of the vehicle are determined as the second type of noise reduction requirements. The second type of noise reduction requirements include single-location noise reduction requirements and multi-location noise reduction requirements. The multi-location noise reduction requirements refer to noise reduction requirements at least two locations. Based on the second type of noise reduction requirements, the noise reduction locations are determined, including the driver's seat, the passenger seat, and the sleeper berth. Based on the noise reduction location, output a noise suppression command.

5. The method according to claim 1, characterized in that, The sound wave generators are respectively installed in the passenger seat, driver's seat, and sleeper berth; wherein, the number of sound wave generators installed in the passenger seat and driver's seat is at least two, and the number of sound wave generators installed in the sleeper berth is at least one.

6. A vehicle noise reduction device, characterized in that, The device includes: The first acquisition module is used to acquire the noise spectrum of the vehicle based on a first parameter set and a second parameter set using a sound wave collector. The noise spectrum includes an engine noise spectrum, a tire noise spectrum, a structural noise spectrum, and an air conditioning noise spectrum. The first parameter set includes tire mileage, tire model, vehicle maintenance status, and current road conditions. The second parameter set includes vehicle mileage, engine age, engine speed, vehicle speed, and air conditioning status. The air conditioning noise spectrum is generated based on the air conditioning mode, outside temperature, and integrated wind speed. The noise spectrum also includes a relative vehicle speed noise spectrum, which is based on vehicle speed and integrated wind speed. The determination module is used to determine the location noise generated at the vehicle's seating position based on the noise spectrum, wherein the location noise includes noise from the driver's seat, noise from the front passenger seat, and noise from the sleeper berth. The second acquisition module is used to acquire noise suppression instructions based on the location noise and the vehicle type, wherein the types include a first type, a second type, and a third type; the cost of a first type vehicle is lower than the cost of a second type vehicle, and the cost of a second type vehicle is lower than the cost of a third type vehicle. The control module is used to control the noise suppression device to generate noise suppression waves according to the noise suppression command, and to reduce noise in the vehicle through the noise suppression waves; the noise suppression device for the first type of vehicle is an on-board speaker, and the noise suppression devices for the second type of vehicle and the third type of vehicle are both sound wave generators. The step of obtaining the noise spectrum of the vehicle based on the sound wave acquisition device and the vehicle's first and second parameter sets includes: If the vehicle is of type three; and the type three vehicle is equipped with a wind speed sensor; based on the wind speed sensor, the vehicle's frontal wind speed, left-side wind speed, and right-side wind speed are obtained; based on the frontal wind speed, left-side wind speed, and right-side wind speed, an integrated wind speed is determined; based on the vehicle speed and the integrated wind speed, a relative vehicle speed is determined; based on the relative vehicle speed, the sound wave acquisition device, the first parameter set, and the second parameter set, the noise spectrum of the vehicle is obtained.

7. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

9. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 5.

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