Automobile cabin sound field adaptive adjustment method, device, equipment and storage medium

Abstract

The present application discloses a method, device, equipment and storage medium for adaptively adjusting the sound field in a vehicle cabin, relating to the field of sound field control technology. The method comprises: collecting a driver's seat occupancy signal and a passenger seat occupancy signal; determining the vehicle cabin sound field position according to the driver's seat occupancy signal and the passenger seat occupancy signal, and obtaining a sound field position judgment result; adjusting the sound field focus position based on the sound field position judgment result, determining the vehicle cabin sound field position by identifying the number of people seated in the vehicle cabin and their seat positions, and adjusting the sound field focus position accordingly, thereby realizing intelligent switching of sound field effects.

Description

Technical Field

[0001] The present application relates to the technical field of sound field control, and in particular to a method, device, equipment and storage medium for adaptively adjusting the sound field in a vehicle cabin. Background Art

[0002] With the increasing development of smart cockpit technology in new energy vehicles, the in-car acoustic experience has gradually become a key consideration for vehicle purchasers. Multiple passengers in a vehicle are a common scenario. In this scenario, changes in the number of passengers lead to changes in seating positions. To achieve the optimal sound field, the sound field position must be adjusted based on the number of passengers and seating positions. Music is an essential entertainment experience for users during vehicle use. The varying number of passengers and seating positions requires different sound field settings to ensure the best possible music experience for each user. How to adjust the sound field position based on the number of passengers and seating positions to achieve the optimal sound field effect is a pressing issue.

[0003] When adjusting the car's cabin sound field, setting the center of the sound field in the smart cockpit to the center of the cabin occupants can achieve better musical effects. However, when the number of passengers varies, frequently adjusting the sound field position increases the driver's frequency of operation. Existing solutions use voice sound source localization devices to determine occupant seating, which results in significant errors in spatial judgment and requires a robust large-scale voice model.

[0004] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0005] The main purpose of this application is to provide a method, device, equipment and storage medium for adaptive adjustment of the car cabin sound field, aiming to solve the technical problem of how to identify the number of people and seating positions in the car cabin to intelligently switch the sound field effects.

[0006] To achieve the above objectives, the present application proposes a method for adaptively adjusting the sound field in a vehicle cabin, the method comprising:

[0007] Collect driver seat occupancy signals and passenger seat occupancy signals;

[0008] determining a vehicle cabin sound field position according to the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a sound field position determination result;

[0009] The sound field focus position is adjusted based on the sound field position judgment result.

[0010] In one embodiment, the step of determining the vehicle cabin sound field position based on the driver seat occupancy signal and the passenger seat occupancy signal to obtain a sound field position determination result includes:

[0011] Determining whether there is anyone in the vehicle cabin based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a cabin occupancy status determination result;

[0012] When the cockpit occupancy status judgment result is that there is someone in the cockpit, determining a sound field position judgment result based on the driver seat occupancy signal and the passenger seat occupancy signal;

[0013] When the cabin occupancy status judgment result is that there is no one in the cabin, a historical sound field position judgment result is obtained from the local end, and the sound field position judgment result is determined from the historical sound field position judgment results.

[0014] In one embodiment, when the cabin occupancy status judgment result is that there is someone in the cabin, the step of determining the sound field position judgment result based on the driver seat occupancy signal and the passenger seat occupancy signal includes:

[0015] When the cabin occupancy status judgment result is that there is someone in the cabin, determining the seating information of the driver and passenger based on the driver seat occupancy signal and the passenger seat occupancy signal;

[0016] Based on the seating information of the driver and passenger, a sound field focus determination interface is displayed to the corresponding driver and passenger, so that the driver and passenger can select whether sound field focus is required, and obtain a sound field focus determination result;

[0017] The vehicle cabin sound field position is determined based on the sound field focus determination result to obtain a sound field position judgment result.

[0018] In one embodiment, after the step of adjusting the sound field focus position based on the sound field position determination result, the method further includes:

[0019] Set the adaptive adjustment time interval;

[0020] When the operation of adjusting the sound field focus position based on the sound field position judgment result exceeds the adaptive adjustment time interval, the process returns to the operation of collecting the driver seat occupancy signal and the passenger seat occupancy signal.

[0021] In one embodiment, after the step of adjusting the sound field focus position based on the sound field position determination result, the method further includes:

[0022] Based on the sound field position determination result, a sound field adjustment mode selection interface is displayed to a user at a corresponding position and a preset voice is played to enable the user to set the sound field adjustment mode according to the user's needs;

[0023] When a professional adjustment mode instruction is received, a sound field adjustment parameter setting interface is displayed to the user, so as to adjust the vehicle cabin sound field according to the parameters selected by the user;

[0024] When a scene adjustment mode instruction is received, a simulation scene selection interface is displayed to the user to adjust the car cabin sound field according to the simulation scene selected by the user.

[0025] In one embodiment, after the step of adjusting the sound field focus position based on the sound field position determination result, the method further includes:

[0026] Collect vehicle status data and environmental noise data;

[0027] The vehicle cabin sound field is adjusted based on the vehicle status data and the ambient noise data.

[0028] In one embodiment, the step of adjusting the vehicle cabin sound field based on the vehicle status data and the ambient noise data includes:

[0029] identifying a noise type based on the vehicle status data and the ambient noise data;

[0030] determining a noise reduction requirement for the vehicle based on the noise type;

[0031] The vehicle cabin sound field is adjusted based on the vehicle noise reduction requirement.

[0032] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle cabin sound field adaptive adjustment device, the vehicle cabin sound field adaptive adjustment device comprising:

[0033] A signal acquisition module, used to collect driver seat occupancy signals and passenger seat occupancy signals;

[0034] a sound field determination module, configured to determine a vehicle cabin sound field position based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtain a sound field position determination result;

[0035] The sound field adjustment module is used to adjust the sound field focus position based on the sound field position judgment result.

[0036] In addition, to achieve the above-mentioned purpose, the present application also proposes a vehicle cabin sound field adaptive adjustment device, which includes: a memory, a processor, and a computer program stored on the memory and runnable on the processor, wherein the computer program is configured to implement the steps of the vehicle cabin sound field adaptive adjustment method as described above.

[0037] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium and stores a computer program. When the computer program is executed by a processor, the steps of the method for adaptively adjusting the car cabin sound field as described above are implemented.

[0038] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program. When the computer program is executed by a processor, it implements the steps of the method for adaptively adjusting the automobile cabin sound field as described above.

[0039] One or more technical solutions proposed in this application have at least the following technical effects:

[0040] The driver's seat occupancy signal and the passenger seat occupancy signal are collected, the vehicle cabin sound field position is determined according to the driver's seat occupancy signal and the passenger seat occupancy signal, and a sound field position judgment result is obtained. The sound field focus position is adjusted based on the sound field position judgment result. The number of people sitting in the cabin and their seat positions are identified through the driver's seat occupancy signal and the passenger seat occupancy signal, and the vehicle cabin sound field position is determined. The sound field focus position is adjusted according to the vehicle cabin sound field position, and the sound field effects are intelligently switched. While ensuring that users obtain the best sound quality effects during the use of the vehicle, the sound field sound effect setting operation steps are reduced, thereby improving the user's driving experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0043] Figure 1 A flowchart of the first embodiment of the method for adaptively adjusting the sound field in a vehicle cabin of this application is provided;

[0044] Figure 2 A diagram illustrating the seat area division of the method for adaptively adjusting the vehicle cabin sound field provided in Example 1 of the present application;

[0045] Figure 3 This is a logical architecture diagram of the method for adaptively adjusting the vehicle cabin sound field provided in Example 1 of the present application;

[0046] Figure 4 A flowchart of the second embodiment of the method for adaptively adjusting the sound field in a vehicle cabin of this application is provided;

[0047] Figure 5 A flowchart illustrating a third embodiment of the method for adaptively adjusting the sound field in a vehicle cabin of this application;

[0048] Figure 6This is a schematic diagram of the module structure of the vehicle cabin sound field adaptive adjustment device according to an embodiment of the present application;

[0049] Figure 7 Schematic diagram of the device structure of the hardware operating environment involved in the method for adaptively adjusting the car cabin sound field in the embodiment of the present application.

[0050] The purpose, features and advantages of this application will be further explained with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0051] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0052] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0053] It should be noted that the execution subject of this embodiment may be a computing service device with data processing, network communication, and program execution capabilities, such as a tablet computer, personal computer, or mobile phone, or an electronic device capable of performing the aforementioned functions, such as a cabin sound field adjustment device. This embodiment and the following embodiments will be described below using a cabin sound field adjustment device as an example.

[0054] Based on this, the embodiment of the present application provides a method for adaptively adjusting the sound field of a car cabin, referring to Figure 1 , Figure 1 This is a flow chart of the first embodiment of the method for adaptively adjusting the vehicle cabin sound field of the present application.

[0055] In this embodiment, the method for adaptively adjusting the vehicle cabin sound field includes steps S10 to S40:

[0056] Step S10, collecting driver seat occupancy signals and passenger seat occupancy signals;

[0057] It should be understood that a DMS (Driver Monitoring System) sensor is arranged in the driving position of the car cockpit. The DMS sensor can be used to detect the driver's seat occupancy status. When it recognizes that the driver has opened the front door, the DMS sensor will collect the driver's facial features. After confirming the recognition of the driver, it will send the driving seat occupancy signal to the IVI (In-Vehicle Infotainment) controller, that is, the cockpit domain controller; occupancy sensors are arranged in the seats in the non-driving positions of the car cockpit. When the occupancy sensor recognizes that a passenger is sitting down, it will send the passenger seat occupancy signal of the corresponding position to the cockpit domain controller.

[0058] It should be noted that the driver's seat occupancy signal and the passenger seat occupancy signal can also be collected through other perception sensors, including several sensors that can sense information about the occupancy of the driver and passengers, such as millimeter-wave radar, ultrasonic radar, camera device, sensors of the internal system of the monitored vehicle, etc. The data from these perception sensors needs to be able to be used to monitor the occupancy status or characteristics of the driver and passengers, which is the key to realizing the operation of the adaptive sound field adjustment function. Compared with the existing technical solutions, this solution collects the driver's seat occupancy signal and the passenger seat occupancy signal based on common perception sensors such as occupancy sensors and DMS sensors that are equipped on the smart car itself. It can obtain accurate occupancy information without developing a large voice model and maximize the functions of existing sensors, which reduces the R&D cost to a certain extent and can obtain higher returns.

[0059] Step S20, determining the vehicle cabin sound field position according to the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a sound field position determination result;

[0060] It should be understood that the car cabin space can be divided into five seating areas: the main driver area, the co-driver area, the front area, the rear area and the whole car area. Figure 2 , Figure 2 This is a diagram of the seat area division of the vehicle cabin sound field adaptive adjustment method provided in Example 1 of this application. Figure 2 As shown, Area 2 is the driver's seat area, Area 1 is the passenger seat area, Areas 3, 4, and 5 are the rear seats, Areas 1 and 2 are the front seats, and Areas 1, 2, 3, 4, and 5 are the entire vehicle area. Based on the driver's seat occupancy signal and passenger seat occupancy signal collected at a certain moment, the number of people seated in the vehicle cabin and their seat positions can be determined. The position of the vehicle cabin sound field can also be determined based on the number of people seated in the vehicle cabin and their seat positions.

[0061] In a feasible implementation, step S20 may include steps A11 to A13:

[0062] Step A11, determining whether there is anyone in the vehicle cabin based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a cabin occupancy status determination result;

[0063] It should be understood that when the driver's seat occupancy signal and the passenger seat occupancy signal collection results are obtained, it will be first determined whether there is someone in the car cabin based on the collected driver's seat occupancy signal and the passenger seat occupancy signal, and the cabin occupancy status judgment result will be obtained to determine whether the car cabin sound field position needs to be switched.

[0064] Step A12: When the cabin occupancy status judgment result is that there is someone in the cabin, determine the sound field position judgment result based on the driver seat occupancy signal and the passenger seat occupancy signal.

[0065] It should be understood that if any occupancy signal is collected at a certain moment, it will be determined that there is a person sitting in the car cabin at this time, and based on the collection results of the driver's seat occupancy signal and the passenger seat occupancy signal, it will be further determined to which position the sound field needs to be switched to obtain the sound field position judgment result.

[0066] In a specific implementation, if the driver's seat occupancy signal is collected by the DMS sensor and the passenger seat occupancy signal is collected by the occupancy sensor, the judgment logic for the sound field switching position can be: if there is no occupancy signal input from the occupancy sensor and only the DMS sensor has an occupancy signal input, it is judged that there is someone in the main driver's seat, and no one in the co-driver and back row, and the sound field position is switched to the main driver's seat; if there is a signal input from the co-driver's seat occupancy sensor and the DMS sensor also has a signal input, it is judged that there are people in both the main driver's seat and the co-driver's seat, and no one in the back row, and the sound field position is switched to the front row; if there is an occupancy signal input from the co-driver's seat occupancy sensor and the DMS sensor has no signal input, it is judged that there are people in the main driver's seat and the co-driver's seat, and no one in the back row, and the sound field position is switched to the front row; If there is a signal input, it is judged that only the front passenger seat is occupied, and the driver and rear seats are unoccupied, and the sound field position is switched to the front passenger seat; if the rear occupancy sensor has an occupancy signal input and the DMS sensor has no signal input, it is judged that there is someone in the back seat, and the driver and front passenger seats are unoccupied, and the sound field position is switched to the rear seat; if the rear occupancy sensor has an occupancy signal input and the DMS sensor has a signal input, it is judged that there are people in the driver and rear seats, and no one in the front passenger seat, and the sound field position is switched to the entire vehicle; if all occupancy sensors have occupancy signal input and the DMS sensor has a signal input, it is judged that the entire vehicle is occupied, and the sound field position is switched to the entire vehicle.

[0067] In a feasible implementation, step A12 may include steps B11 to B13:

[0068] Step B11, when the cabin occupancy status judgment result is that there is someone in the cabin, determining the seating information of the driver and passenger based on the driver seat occupancy signal and the passenger seat occupancy signal;

[0069] It should be understood that when it is determined that there is someone in the car cabin, the number of people sitting in the car cabin and their seating positions, that is, the seating information of the driver and passengers, can be determined based on the driver seat occupancy signal and the passenger seat occupancy signal.

[0070] Step B12: displaying a sound field focus determination interface to the corresponding driver or passenger based on the driver or passenger seating information, so that the driver or passenger can select whether to require sound field focus, and obtaining a sound field focus determination result;

[0071] It should be noted that not all seated passengers have the need for sound field focusing. In order to further determine the sound field focusing needs of the seated passengers, after the number of passengers and their seating positions in the car cabin are determined, the identified passengers can be prompted through the HMI (Human Machine Interface) to determine whether sound field focusing is required, that is, the sound field focusing determination interface is displayed to the passengers in the corresponding positions to take care of the listening needs of each seated passenger.

[0072] It should be understood that the sound field focus determination interface corresponds to the screen associated with the user's position. For passengers seated in the driver's seat, this will be done on the central control screen; for passengers seated in the passenger seat, this will be done on the central control screen or the passenger screen; and for passengers seated in the rear seat, this will be done on the rear screen. For models without a rear screen, the sound field focus requirements for each seat can be determined centrally on the central control screen to ensure the best possible listening experience for all seated passengers.

[0073] Step B13: determining the position of the vehicle cabin sound field based on the sound field focus determination result to obtain a sound field position determination result.

[0074] It should be noted that after receiving the sound field focusing determination result, the drivers and passengers who have sound field focusing requirements will be marked, and the seating position information of the marked drivers and passengers will be obtained. The sound field position judgment result will be determined based on their position information. The sound field position judgment result is the result optimized according to the driver and passenger's choice.

[0075] Step A13: When the cabin occupancy status judgment result is that there is no one in the cabin, obtain historical sound field position judgment results from the local end, and determine the sound field position judgment result from the historical sound field position judgment results.

[0076] It should be understood that if no occupancy signal is collected at a certain moment, it will be determined that no one is sitting in the car cabin at this time, and the historical sound field position judgment result will be obtained from the local end, that is, the car computer end, and the last sound field position judgment result will be obtained from the historical sound field position judgment result, and it will be used as the latest sound field position judgment result.

[0077] It should be noted that in the process of switching the sound field position, the cockpit domain controller not only needs to make logical judgments, but also needs to implement switch item settings and judge the switch status. This function is allowed in the vehicle settings item, allowing users to set the switch by themselves. The switch has a memory function, and the last setting will be loaded the next time you get in the car. Specifically, refer to Figure 3 , Figure 3 This is a logical architecture diagram of the vehicle cabin sound field adaptive adjustment method provided in Example 1 of this application. Figure 3As shown in the figure, after determining the sound field position, the cockpit domain controller needs to remember the sound field position status at that moment until the next occupancy change occurs and the sound field position changes. When the cabin occupancy determination status changes from occupied to unoccupied, the sound field position in the cabin should be the sound field position status of the previous occupancy scenario remembered by the cockpit domain controller until the occupancy status changes again.

[0078] Step S30: adjusting the sound field focus position based on the sound field position judgment result.

[0079] It should be understood that after the sound field position judgment result is obtained, the corresponding sound field position signal will be sent to the actuator so that the actuator can adjust the sound field focus position according to the sound field position signal, so that the sound presents the best listening position in the cockpit. The process of adjusting the sound field focus position is to adjust and control the position, direction and distance of the sound in this space. The sound field is determined by acoustic factors such as the delay, amplitude, and phase of the sound. Different sound field focuses can adapt to the best sound quality experience in multiple positions. The actuator adjusts the position according to the current sound field focus position in the car based on the seat position information received in the car, so that all users in the car can get the best music experience.

[0080] It should be noted that the actuator includes but is not limited to a sound player, a power amplifier, a sound player and a power amplifier implemented together, etc. Among them, the sound player can be implemented by an audio device, and the power amplifier is used to adjust the volume of the sound played by the sound player.

[0081] In a feasible implementation manner, step S30 may include steps C11 to C12:

[0082] Step C11, setting the adaptive adjustment time interval;

[0083] It should be noted that the adaptive adjustment interval determines how long after adjusting the sound field focus position to reassess the cabin occupancy status. During the set adaptive adjustment interval, the sound field focus position will not be adjusted unless the driver or passenger actively adjusts the sound field adjustment parameters.

[0084] Step C12: When the operation of adjusting the sound field focus position based on the sound field position judgment result exceeds the adaptive adjustment time interval, return to the operation of collecting the driver seat occupancy signal and the passenger seat occupancy signal.

[0085] It should be understood that too frequent changes in the sound field will interfere with the normal use of the driver and passengers, especially when the driver and passengers need to keep the current sound field settings stable. Therefore, the adaptive adjustment time interval cannot be set too short to avoid responding to temporary changes in the occupancy status, such as the driver and passengers leaving their seats to pick up things or check the surrounding situation of the vehicle, which will affect the listening experience of the cabin users.

[0086] This embodiment provides a method for adaptively adjusting the car cabin sound field, which collects a driver's seat occupancy signal and a passenger seat occupancy signal, determines the car cabin sound field position based on the driver's seat occupancy signal and the passenger seat occupancy signal, obtains a sound field position judgment result, adjusts the sound field focus position based on the sound field position judgment result, identifies the number of people sitting in the cabin and their seat positions and determines the car cabin sound field position through the driver's seat occupancy signal and the passenger seat occupancy signal, adjusts the sound field focus position according to the car cabin sound field position, and intelligently switches the sound field effects. This method reduces the sound field and sound effect setting operation steps while ensuring that users obtain the best sound quality effects during the use of the car, thereby improving the user's driving experience.

[0087] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 4 After step S30, the vehicle cabin sound field adaptive adjustment method further includes steps C21 to C23:

[0088] Step C21: Based on the sound field position determination result, a sound field adjustment mode selection interface is displayed to the user at the corresponding position and a preset voice is played to enable the user to set the sound field adjustment mode according to the user's needs;

[0089] It should be noted that in the process of adjusting the car cabin sound field, in addition to adjusting the sound field focus position, it also includes adjusting the volume, adjusting the sound field balance, adjusting the surround sound effect, etc. In order to meet the multi-faceted listening needs of the driver and passengers in the cabin, in addition to adjusting the sound field focus position based on the sound field position judgment results, the sound field adjustment mode selection interface will be automatically displayed on the user interface at the corresponding position based on the sound field position judgment results, and a preset voice prompt such as "Please select the sound field adjustment mode according to your needs" will be played to guide the user to the next step. The sound field adjustment mode selection interface provides different sound field adjustment options such as professional adjustment mode and scene adjustment mode.

[0090] Step C22: When a professional adjustment mode instruction is received, a sound field adjustment parameter setting interface is displayed to the user, so as to adjust the vehicle cabin sound field according to the parameters selected by the user;

[0091] It should be understood that when a user in a specific location selects Professional Adjustment Mode, the user will be presented with a sound field adjustment parameter setting interface, allowing them to adjust detailed sound field parameters such as volume, equalizer settings, and surround sound effects based on their personal preferences. Professional Adjustment Mode provides users with personalized sound field customization capabilities, meeting the specific sound quality needs of different users and improving user satisfaction and riding experience.

[0092] Step C23 , when a scene adjustment mode instruction is received, a simulation scene selection interface is displayed to the user to adjust the car cabin sound field according to the simulation scene selected by the user.

[0093] It should be understood that when a user in a corresponding location selects the professional adjustment mode, a simulation scene selection interface will be displayed to the user, providing a variety of preset scene simulation options, such as concerts, cinemas, and outdoor environments. The scene adjustment mode allows users to quickly select and switch sound field settings based on their preferred listening scene, providing a more immersive and realistic listening experience.

[0094] This embodiment provides users with clear operation guidance through interface display and voice prompts, allowing users to select the appropriate sound field adjustment mode according to their needs, and then customize the sound field effect according to their preferences and specific scenarios, to obtain a richer and more satisfying listening experience.

[0095] Based on the first embodiment of the present application, in the third embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 5 After step S30, the vehicle cabin sound field adaptive adjustment method further includes steps C31 to C32:

[0096] Step C31, collecting vehicle status data and environmental noise data;

[0097] It's important to note that vehicle status data, including vehicle speed, engine speed, and air conditioning status, can generate ambient noise due to changes in this data. Specifically, excessive vehicle speed can increase wind and tire noise, high engine speeds can generate more mechanical noise, and running the air conditioner can also generate additional noise, altering the in-vehicle sound environment.

[0098] It should be understood that ambient noise data refers to various sound data generated by the vehicle's internal and external environments, which may interfere with the sound field effect within the cabin. Vehicle status data can be collected by the vehicle's built-in sensor, while ambient noise data can be collected by external microphones.

[0099] Step C32: adjusting the vehicle cabin sound field based on the vehicle status data and the ambient noise data.

[0100] It should be understood that collected vehicle status data and ambient noise data can be input into intelligent algorithms, allowing them to optimize sound field settings in real time based on the collected data. Intelligent sound field adjustment allows users to enjoy the best listening experience in different driving conditions and environments. For example, when driving at high speeds, the music volume can be automatically increased to overcome wind noise, or the sound field setting can be automatically adjusted to a more comfortable level when parked. Furthermore, frequency equalization can be adjusted specifically based on the characteristics of the ambient noise to improve sound quality.

[0101] In a feasible implementation, step C32 may include: identifying the noise type based on the vehicle status data and the ambient noise data; determining the vehicle noise reduction requirement based on the noise type; and adjusting the vehicle cabin sound field based on the vehicle noise reduction requirement.

[0102] It should be noted that by analyzing ambient noise data through signal processing techniques (such as Fourier transforms), characteristic noise parameters such as frequency, amplitude, and duration can be extracted. By inputting these characteristic noise parameters and vehicle status data into machine learning algorithms (such as support vector machines and neural networks), the noise type (e.g., traffic noise, wind noise, engine noise, air conditioning noise, etc.) can be determined. After determining the noise type, the current noise reduction requirements are assessed. Based on the determined noise reduction requirements, the vehicle cabin sound field is adjusted and cabin audio system parameters, such as volume and equalizer settings, are optimized. Specifically, if engine noise is identified, the bass of the vehicle audio system may need to be enhanced to mask the engine noise. Furthermore, advanced audio processing techniques such as dynamic range control or noise suppression can be used to process the input audio signal in real time, adjusting the audio compression ratio based on the noise level or applying noise cancellation algorithms to enhance the clarity and audibility of the music.

[0103] This embodiment achieves dynamic management of the vehicle cabin sound field through intelligent identification and adjustment. Based on real-time vehicle status and ambient noise data, it identifies noise types, assesses noise reduction needs, and automatically adjusts the sound field, providing drivers and passengers with the optimal auditory experience under various conditions and enhancing travel comfort.

[0104] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the method for adaptively adjusting the car cabin sound field of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0105] This application also provides a vehicle cabin sound field adaptive adjustment device, please refer to Figure 6 , the automobile cabin sound field adaptive adjustment device includes:

[0106] A signal acquisition module 10 is used to collect driver seat occupancy signals and passenger seat occupancy signals;

[0107] a sound field determination module 20 for determining a vehicle cabin sound field position based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a sound field position determination result;

[0108] The sound field adjustment module 30 is configured to adjust the sound field focus position based on the sound field position determination result.

[0109] The vehicle cabin sound field adaptive adjustment device provided in this application utilizes the vehicle cabin sound field adaptive adjustment method described in the aforementioned embodiment to address the technical problem of identifying the number of seated persons and seating positions in a vehicle cabin to intelligently adjust the sound field effects. Compared to the prior art, the vehicle cabin sound field adaptive adjustment device provided in this application achieves the same beneficial effects as the vehicle cabin sound field adaptive adjustment method described in the aforementioned embodiment. Other technical features of the vehicle cabin sound field adaptive adjustment device are the same as those disclosed in the aforementioned embodiment and are not further detailed here.

[0110] The present application provides an adaptive adjustment device for the sound field in a vehicle cabin, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for adaptive adjustment of the sound field in the vehicle cabin in the first embodiment described above.

[0111] Reference below Figure 7 , which shows a schematic diagram of the structure of a vehicle cabin sound field adaptive adjustment device suitable for implementing the embodiments of the present application. The vehicle cabin sound field adaptive adjustment device in the embodiments of the present application can include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (such as in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 7 The automobile cabin sound field adaptive adjustment device shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0112] like Figure 7As shown, the vehicle cabin sound field adaptive adjustment device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the vehicle cabin sound field adaptive adjustment device. Processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input devices 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output devices 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage devices 1003 including, for example, a magnetic tape, hard disk, etc.; and communication devices 1009. Communication devices 1009 can allow the vehicle cabin sound field adaptive adjustment device to communicate wirelessly or wired with other devices to exchange data. Although the figure shows a vehicle cabin sound field adaptive adjustment device with various systems, it should be understood that implementation or presence of all the illustrated systems is not required. More or fewer systems may alternatively be implemented or present.

[0113] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0114] The vehicle cabin sound field adaptive adjustment device provided in this application utilizes the vehicle cabin sound field adaptive adjustment method described in the aforementioned embodiment to address the technical problem of identifying the number of seated persons and seating positions in a vehicle cabin to intelligently adjust the sound field effects. Compared to the prior art, the vehicle cabin sound field adaptive adjustment device provided in this application achieves the same beneficial effects as the vehicle cabin sound field adaptive adjustment method described in the aforementioned embodiment. Other technical features of this vehicle cabin sound field adaptive adjustment device are the same as those disclosed in the aforementioned embodiment and are not further detailed here.

[0115] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0116] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0117] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, a computer program) stored thereon, and the computer-readable program instructions are used to execute the method for adaptively adjusting the vehicle cabin sound field in the above-mentioned embodiment.

[0118] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0119] The computer-readable storage medium may be included in the vehicle cabin sound field adaptive adjustment device; or it may exist independently without being assembled into the vehicle cabin sound field adaptive adjustment device.

[0120] The computer-readable storage medium carries one or more programs. When the one or more programs are executed by the vehicle cabin sound field adaptive adjustment device, the vehicle cabin sound field adaptive adjustment device: collects a driver's seat occupancy signal and a passenger seat occupancy signal; determines the vehicle cabin sound field position based on the driver's seat occupancy signal and the passenger seat occupancy signal to obtain a sound field position judgment result; and adjusts the sound field focus position based on the sound field position judgment result.

[0121] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0122] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0123] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0124] The computer-readable storage medium provided in this application stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned method for adaptively adjusting the vehicle cabin sound field. This computer-readable storage medium addresses the technical problem of identifying the number of passengers and seating positions in a vehicle cabin to intelligently adjust the sound field effects. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are similar to those of the method for adaptively adjusting the vehicle cabin sound field provided in the aforementioned embodiment, and are not further elaborated here.

[0125] The present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the steps of the above-mentioned method for adaptively adjusting the automobile cabin sound field.

[0126] The computer program product provided in this application solves the technical problem of identifying the number of people and seating positions in a vehicle cabin to intelligently adjust the sound field effects. Compared to existing technologies, the computer program product provided in this application offers the same beneficial effects as the adaptive vehicle cabin sound field adjustment method provided in the aforementioned embodiment, and will not be further elaborated here.

[0127] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for adaptively adjusting the sound field in a car cabin, characterized in that: The method for adaptively adjusting the vehicle cabin sound field comprises: Collect driver seat occupancy signals and passenger seat occupancy signals; determining a vehicle cabin sound field position according to the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a sound field position determination result; adjusting the sound field focus position based on the sound field position judgment result; The step of determining the vehicle cabin sound field position according to the driver seat occupancy signal and the passenger seat occupancy signal to obtain a sound field position judgment result comprises: Determining whether there is anyone in the vehicle cabin based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtaining a cabin occupancy status determination result; When the cockpit occupancy status judgment result is that there is someone in the cockpit, determining a sound field position judgment result based on the driver seat occupancy signal and the passenger seat occupancy signal; When the cabin occupancy status judgment result is that there is no one in the cabin, obtaining historical sound field position judgment results from the local end, and determining the sound field position judgment result based on the historical sound field position judgment results; When the cabin occupancy status judgment result is that there is someone in the cabin, the step of determining the sound field position judgment result based on the driver seat occupancy signal and the passenger seat occupancy signal includes: When the cabin occupancy status judgment result is that there is someone in the cabin, determining the seating information of the driver and passenger based on the driver seat occupancy signal and the passenger seat occupancy signal; Based on the seating information of the driver and passenger, a sound field focus determination interface is displayed to the corresponding driver and passenger, so that the driver and passenger can select whether sound field focus is required, and obtain a sound field focus determination result; The vehicle cabin sound field position is determined based on the sound field focus determination result to obtain a sound field position judgment result.

2. The method for adaptively adjusting the vehicle cabin sound field according to claim 1, wherein: After the step of adjusting the sound field focus position based on the sound field position judgment result, the method further includes: Set the adaptive adjustment time interval; When the operation of adjusting the sound field focus position based on the sound field position judgment result exceeds the adaptive adjustment time interval, the process returns to the operation of collecting the driver seat occupancy signal and the passenger seat occupancy signal.

3. The method for adaptively adjusting the vehicle cabin sound field according to claim 1, wherein: After the step of adjusting the sound field focus position based on the sound field position judgment result, the method further includes: Based on the sound field position determination result, a sound field adjustment mode selection interface is displayed to a user at a corresponding position and a preset voice is played to enable the user to set the sound field adjustment mode according to the user's needs; When a professional adjustment mode instruction is received, a sound field adjustment parameter setting interface is displayed to the user, so as to adjust the vehicle cabin sound field according to the parameters selected by the user; When a scene adjustment mode instruction is received, a simulation scene selection interface is displayed to the user to adjust the car cabin sound field according to the simulation scene selected by the user.

4. The method for adaptively adjusting the vehicle cabin sound field according to claim 1, wherein: After the step of adjusting the sound field focus position based on the sound field position judgment result, the method further includes: Collect vehicle status data and environmental noise data; The vehicle cabin sound field is adjusted based on the vehicle status data and the ambient noise data.

5. The method for adaptively adjusting the vehicle cabin sound field according to claim 4, wherein: The step of adjusting the vehicle cabin sound field based on the vehicle state data and the ambient noise data comprises: identifying a noise type based on the vehicle status data and the ambient noise data; determining a noise reduction requirement for the vehicle based on the noise type; The vehicle cabin sound field is adjusted based on the vehicle noise reduction requirement.

6. A vehicle cabin sound field adaptive adjustment device according to any one of claims 1 to 5, characterized in that: The device comprises: A signal acquisition module, used to collect driver seat occupancy signals and passenger seat occupancy signals; a sound field determination module, configured to determine a vehicle cabin sound field position based on the driver seat occupancy signal and the passenger seat occupancy signal, and obtain a sound field position determination result; The sound field adjustment module is used to adjust the sound field focus position based on the sound field position judgment result.

7. An adaptive adjustment device for the sound field in a car cabin, characterized in that: The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for adaptively adjusting the vehicle cabin sound field according to any one of claims 1 to 5.

8. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the method for adaptively adjusting the vehicle cabin sound field according to any one of claims 1 to 5 are implemented.

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