In-vehicle sound transmission method, device and vehicle based on vehicle-mounted Bluetooth transmission

Abstract

The present application provides an in-vehicle sound transmission method, device and vehicle based on vehicle-mounted Bluetooth transmission. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission includes: obtaining the sound information to be output; obtaining the sound source type of the sound information to be output; obtaining a sound allocation strategy database, the sound allocation strategy database includes multiple allocation strategies and a preset sound source type corresponding to each allocation strategy; judging whether the sound source type is the same as a preset sound source type, if so, obtaining the allocation strategy corresponding to the preset sound source type that is the same as the sound source type; and transmitting the sound information to be output to one or more corresponding sound output devices according to the allocation strategy. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission of the present application transmits the sound to be output based on Bluetooth, thereby avoiding interference from the wiring harness, and transmits it to different sound output devices according to different allocation strategies, thereby realizing a more humane sound distribution scheme.

Description

Technical Field

[0001] The present application belongs to the field of vehicle audio technology, and in particular relates to a vehicle audio transmission method based on vehicle Bluetooth transmission, a vehicle audio transmission device based on vehicle Bluetooth transmission, and a vehicle. Background Art

[0002] With the improvement of users' quality of life and the demand for personalized and entertaining driver space in the car, the current automotive market has been increasing its requirements for car audio effects. Automakers equip their automotive products with branded audio systems or more car speakers to improve sound quality and increase product appeal and user attraction.

[0003] Currently, whether it is a foreign luxury brand joint venture car, a domestic luxury brand, or even a domestic non-luxury brand high-end model, in order to enhance the user experience and improve the user's perception of sound in the car, they are all equipped with external amplifiers, and the high-end models are equipped with luxury brand amplifiers.

[0004] However, in the prior art, audio signals are transmitted from the power amplifier to each speaker using a wiring harness to transmit analog signals. The signal is easily interfered with during transmission, affecting the audio quality. There are also strict requirements on the impedance from the power amplifier to the speaker, which needs to be less than 300 milliohms.

[0005] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. Summary of the invention

[0006] The purpose of this application is to provide a method for in-vehicle sound transmission based on vehicle-mounted Bluetooth transmission to solve at least one of the above-mentioned problems.

[0007] In a first aspect of the present application, a method for in-vehicle sound transmission based on in-vehicle Bluetooth transmission is provided, for distributing sound information to one or more of the sound output devices with Bluetooth modules, and the method for in-vehicle sound transmission based on in-vehicle Bluetooth transmission includes:

[0008] Get the sound information to be output;

[0009] Get the sound source type of the sound information to be output;

[0010] Acquire a sound allocation strategy database, wherein the sound allocation strategy database includes a plurality of allocation strategies and a preset sound source type corresponding to each allocation strategy;

[0011] Determine whether the sound source type is the same as a preset sound source type, if so,

[0012] Obtaining the allocation strategy corresponding to the preset sound source type that is the same as the sound source type;

[0013] The to-be-outputted sound information is transmitted to one or more corresponding sound output devices according to the distribution strategy.

[0014] Optionally, the sound source types include radar sound source, T-BOX sound source, Bluetooth phone sound source, prompt sound source, key sound source, voice broadcast sound source, multimedia sound source and instrument alarm sound source.

[0015] Optionally, when the sound source type is a radar sound source, the allocation strategy includes:

[0016] Obtain obstacle location information;

[0017] Obtaining location information of each sound output device;

[0018] According to the obstacle position information and the position information of each sound output device, the sound information to be output is distributed to the sound output device closest to the obstacle position information;

[0019] When the audio source type is a T-BOX audio source, the allocation strategy includes:

[0020] Obtain in-vehicle image information;

[0021] Obtaining the position of each passenger in the car based on the in-car image information;

[0022] Acquire a position relationship database of each sound output device, wherein the position relationship database of each sound output device includes each sound output device and a preset passenger position corresponding to each sound output device;

[0023] Determine whether there is a passenger position in each obtained passenger position that is the same as the preset passenger position. If so,

[0024] The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

[0025] Optionally, when the audio source type is a Bluetooth phone audio source, the allocation strategy includes:

[0026] Obtain in-vehicle image information;

[0027] Determine whether there is a passenger wearing the sound output device according to the in-car image information, and if so,

[0028] The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

[0029] Optionally, when the audio source type is a Bluetooth phone audio source, the allocation strategy further includes:

[0030] Determine whether there is a passenger wearing the sound output device according to the in-car image information, if not,

[0031] The sound information to be output is distributed to the sound output device closest to the main driver's seat.

[0032] Optionally, when the sound source type is a prompt sound source, the allocation strategy includes:

[0033] Get the prompt sound source type, where the prompt sound source type includes system prompt sound or volume adjustment feedback sound,

[0034] If the source type of the prompt sound is a system prompt sound or a volume adjustment feedback sound, then

[0035] Allocating the sound information to be output to the sound output device closest to the main driver's seat and / or allocating the sound information to be output to the sound output device closest to the co-driver's seat;

[0036] If the source type of the prompt sound is the back door memory success prompt sound, then

[0037] The sound information to be output is distributed to the sound output device close to the rear seat.

[0038] Optionally, when the sound source type is a voice broadcast sound source or an instrument alarm sound source, the allocation strategy includes:

[0039] The sound information to be output is distributed to the sound output device closest to the main driver's seat and / or the sound information to be output is distributed to the sound output device closest to the co-driver's seat.

[0040] Optionally, when the sound source type is any one of a radar sound source, a T-BOX sound source, a Bluetooth phone sound source, a prompt sound source, a key sound source, a voice broadcast sound source, a multimedia sound source, and an instrument alarm sound source, the allocation strategy includes:

[0041] Get current fuel level information;

[0042] Get current navigation information;

[0043] Determine the estimated fuel consumption of the current vehicle to reach the destination based on the current navigation information;

[0044] When the current fuel quantity information is less than the used fuel quantity estimated information or when the difference between the current fuel quantity information and the used fuel quantity estimated information is less than a preset threshold; then

[0045] The sound information to be output is distributed to the sound output device closest to the main driver, and a sleep signal is generated and transmitted to other sound output devices except the sound output device closest to the main driver.

[0046] The present application also provides an in-vehicle sound transmission device based on in-vehicle Bluetooth transmission, and the in-vehicle sound transmission device based on in-vehicle Bluetooth transmission includes:

[0047] A module for acquiring sound information to be output, wherein the module is used to acquire sound information to be output;

[0048] A sound source type acquisition module, the sound source type acquisition module is used to obtain the sound source type of the sound information to be output;

[0049] A sound distribution strategy database acquisition module, the sound distribution strategy database acquisition module is used to obtain a sound distribution strategy database, the sound distribution strategy database includes a plurality of distribution strategies and a preset sound source type corresponding to each distribution strategy;

[0050] A determination module, the determination module is used to determine whether the sound source type is the same as a preset sound source type;

[0051] An allocation strategy acquisition module, wherein the allocation strategy acquisition module is used to acquire an allocation strategy corresponding to a preset sound source type that is the same as the sound source type when the judgment module judges that the sound source type is yes;

[0052] A transmission module is used to transmit the sound information to be output to one or more corresponding sound output devices according to the allocation strategy.

[0053] The present application also provides a vehicle, the vehicle comprising:

[0054] An in-vehicle sound transmission device based on in-vehicle Bluetooth transmission, wherein the in-vehicle sound transmission device based on in-vehicle Bluetooth transmission is the in-vehicle sound transmission device based on in-vehicle Bluetooth transmission as described above;

[0055] The sound output device is provided with a built-in Bluetooth module, and each sound output device is connected to the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission; wherein,

[0056] The in-vehicle sound transmission device based on in-vehicle Bluetooth transmission adopts the in-vehicle sound transmission method based on in-vehicle Bluetooth transmission as described above to transmit the sound information to be output to one or more of the various sound output devices.

[0057] This application has at least the following beneficial technical effects:

[0058] The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission of the present application transmits the sound to be output based on Bluetooth, thereby avoiding the interference of the wiring harness, and transmits it to different sound output devices according to different distribution strategies, thereby realizing a more humane sound distribution solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a flowchart of an in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission provided by one embodiment of the present application.

[0060] Figure 2 It is an exemplary structural diagram of an electronic device that can realize the functions to be realized by the in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0061] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.

[0062] It should be noted that, in the description of the present invention, the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0063] Figure 1 It is a flowchart of an in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission provided by one embodiment of the present application.

[0064] The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission of the present application is used to distribute sound information to one or more of the sound output devices with Bluetooth modules.

[0065] like Figure 1 The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission includes:

[0066] Step 1: Get the sound information to be output;

[0067] Step 2: Obtain the sound source type of the sound information to be output;

[0068] Step 3: Obtain a sound distribution strategy database, where the sound distribution strategy database includes multiple distribution strategies and a preset sound source type corresponding to each distribution strategy;

[0069] Step 4: Determine whether the sound source type is the same as a preset sound source type. If so,

[0070] Step 5: Obtaining the allocation strategy corresponding to the preset sound source type that is the same as the sound source type;

[0071] Step 6: Deliver the sound information to be output to one or more corresponding sound output devices according to the allocation strategy.

[0072] The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission of the present application transmits the sound to be output based on Bluetooth, thereby avoiding the interference of the wiring harness, and transmits it to different sound output devices according to different distribution strategies, thereby realizing a more humane sound distribution solution.

[0073] In this embodiment, each sound output device with a Bluetooth module in the present application can be a Bluetooth headset carried by the user, a mobile phone with Bluetooth function, or a speaker system inherent in the car. For example, the vehicle is usually equipped with a left front speaker near the main driver's seat, a right front speaker near the co-driver's seat, a left rear speaker and a right rear speaker in the back row. These speakers are all equipped with Bluetooth modules, so that they can receive the sound information to be output transmitted by Bluetooth.

[0074] In this embodiment, the sound source types include radar sound source, T-BOX sound source, Bluetooth phone sound source, prompt sound source, key sound source, voice broadcast sound source, multimedia sound source and instrument alarm sound source.

[0075] In this embodiment, when the sound source type is a radar sound source, the allocation strategy includes:

[0076] Obtain obstacle location information;

[0077] Obtaining location information of each sound output device;

[0078] According to the obstacle position information and the position information of each sound output device, the sound information to be output is distributed to the sound output device closest to the obstacle position information.

[0079] In this way, the user can be reminded according to the position of the sound output device that plays the specific sound, so that the user can know the approximate direction of the obstacle.

[0080] In this embodiment, when the audio source type is a T-BOX audio source, the allocation strategy includes:

[0081] Obtain in-vehicle image information;

[0082] Obtaining the position of each passenger in the car based on the in-car image information;

[0083] Acquire a position relationship database of each sound output device, wherein the position relationship database of each sound output device includes each sound output device and a preset passenger position corresponding to each sound output device;

[0084] Determine whether there is a passenger position in each obtained passenger position that is the same as the preset passenger position. If so,

[0085] The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

[0086] The purpose of the broadcast sound like that of T-BOX is mainly to enable users to hear clearly. If there is no one in some passenger seats, there is no need for the speakers at that position to broadcast. For example, if there is no one in the co-pilot seat, the speakers for the co-pilot seat do not need to broadcast. This method makes the application more intelligent on the one hand, and can further save fuel and electricity on the other.

[0087] In this embodiment, the passenger position can be obtained through the in-vehicle image information by using image recognition technology.

[0088] In this embodiment, when the audio source type is a Bluetooth phone audio source, the allocation strategy includes:

[0089] Obtain in-vehicle image information;

[0090] Determine whether there is a passenger wearing the sound output device according to the in-car image information, and if so,

[0091] The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

[0092] If the audio source type is a Bluetooth phone, it means that you may need to answer or make a call. The passenger can be judged through the image information in the car (image recognition combined with neural networks can be used to determine whether the user is wearing headphones), making this application more intelligent, especially in situations where privacy is required, so that other people do not know the situation.

[0093] In this embodiment, when the audio source type is a Bluetooth phone audio source, the allocation strategy further includes:

[0094] It is determined whether a passenger is wearing a sound output device according to the in-vehicle image information. If not, the sound information to be output is distributed to the sound output device closest to the main driver's seat.

[0095] Generally speaking, except for the main driver's seat where it may not be convenient to look at or answer the phone, it is easy for passengers in other seats to look at or answer the phone. Therefore, when no one is wearing a sound output device, it is mainly the passenger in the main driver's seat who needs to be reminded. Therefore, the sound information to be output is allocated to the sound output device closest to the main driver's seat.

[0096] In this embodiment, when the sound source type is a prompt sound source, the allocation strategy includes:

[0097] Get the prompt sound source type, where the prompt sound source type includes system prompt sound or volume adjustment feedback sound,

[0098] If the prompt sound source type is system prompt sound or volume adjustment feedback sound, then

[0099] Allocating the sound information to be output to the sound output device closest to the main driver's seat and / or allocating the sound information to be output to the sound output device closest to the co-driver's seat;

[0100] If the prompt sound source type is the back door memory success prompt sound, then

[0101] The sound information to be output is distributed to the sound output device close to the rear seat.

[0102] By adopting this allocation method, different sounds can be allocated more intelligently and specifically. For example, the system prompt sound mainly requires the driver's attention, so it is mainly allocated to the sound output device in the front row.

[0103] In this implementation, when the sound source type is a voice broadcast sound source or an instrument alarm sound source, the allocation strategy includes:

[0104] The sound information to be output is distributed to the sound output device closest to the main driver's seat and / or the sound information to be output is distributed to the sound output device closest to the co-driver's seat.

[0105] By adopting this allocation method, different sounds can be more intelligently and targetedly allocated. For example, the voice broadcast sound source or the instrument alarm sound source mainly requires the driver's attention, and therefore, it is mainly allocated to the sound output device in the front row.

[0106] In an alternative embodiment, when the sound source type is any one of a radar sound source, a T-BOX sound source, a Bluetooth phone sound source, a prompt sound source, a key sound source, a voice broadcast sound source, a multimedia sound source, and an instrument alarm sound source, the allocation strategy includes:

[0107] Get current fuel level information;

[0108] Get current navigation information;

[0109] Determine the estimated fuel consumption of the current vehicle to reach the destination based on the current navigation information;

[0110] When the current fuel quantity information is less than the estimated fuel quantity information or when the difference between the current fuel quantity information and the estimated fuel quantity information is less than a preset threshold;

[0111] The sound information to be output is distributed to the sound output device closest to the main driver, and a sleep signal is generated and transmitted to other sound output devices except the sound output device closest to the main driver.

[0112] In some cases, such as long-distance driving, there may be no gas stations available, or the fuel consumption may be calculated carefully to save money. The sound output device installed in the car may use the power in the car, and power consumption may also mean increased fuel consumption. Therefore, in order to reduce fuel consumption, or when the fuel is insufficient, all information is sent only to the main driver, and other sound output devices are put into sleep mode.

[0113] It is understandable that the following method can be used to determine the estimated fuel consumption of the current vehicle to the destination based on the current navigation information:

[0114] According to the navigation information, the distance between the current location and the target location can be obtained;

[0115] The relationship between driving distance and fuel consumption can be obtained through the car's own fuel consumption test;

[0116] You can tell how much fuel you need by the total mileage and fuel consumption per kilometer.

[0117] For example, there are 5 liters of fuel left, but calculation shows that 4.9 liters are needed to reach the destination. At this time, the preset threshold is set to 1 liter. The difference between the current fuel level information and the estimated fuel level information is less than the preset threshold, that is, 5-4.9 is 0.1, and 0.1 is less than 1 liter. At this time, this allocation strategy is executed.

[0118] It is understandable that if the current fuel quantity information is not less than the estimated fuel quantity used or when the difference between the current fuel quantity information and the estimated fuel quantity used is not less than a preset threshold, the allocation strategy can also be obtained according to the above method based on the sound source type.

[0119] The present application also provides an in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission, and the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission includes a module for obtaining sound information to be output, a module for obtaining a sound source type, a module for obtaining a sound allocation strategy database, a judgment module, a module for obtaining a distribution strategy, and a transmission module. The module for obtaining sound information to be output is used to obtain the sound information to be output; the module for obtaining the sound source type is used to obtain the sound source type of the sound information to be output; the module for obtaining the sound distribution strategy database is used to obtain a sound distribution strategy database, and the sound distribution strategy database includes multiple distribution strategies and a preset sound source type corresponding to each distribution strategy; the judgment module is used to determine whether the sound source type is the same as a preset sound source type; the distribution strategy acquisition module is used to obtain the distribution strategy corresponding to the preset sound source type that is the same as the sound source type when the judgment module determines that it is yes; the transmission module is used to transmit the sound information to be output to the corresponding one or more sound output devices according to the distribution strategy.

[0120] It should be noted that the above description of the method is also applicable to the description of the device.

[0121] The present application also provides a vehicle, comprising an in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission and a sound output device, wherein the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission is the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission as described above; each sound output device is provided with a built-in Bluetooth module, and each sound output device is respectively connected to the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission; wherein the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission adopts the in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission as described above to transmit the sound information to be output to one or more of the sound output devices.

[0122] In this embodiment, the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission has a built-in Bluetooth module. In this embodiment, each Bluetooth module adopts the BT 5.2 Bluetooth system, supports BLE AUDIO technology, and supports multi-stream audio (Multi-Stream Audio) technology, thereby realizing synchronous multiple and independent audio stream transmissions between a single audio source device and one or more audio receiving devices; supports the new audio codec LC3, high-quality, low-latency and low-power audio codec, and can obtain higher-quality sound quality under low bit rates, that is, the present invention also supports high-quality audio playback.

[0123] The use of Bluetooth wireless technology saves the cost of vehicle wiring harnesses and reduces the weight of the vehicle.

[0124] In actual applications, the SOC and DSP communicate through 4 i2S interfaces for audio transmission, namely multimedia, TTS (Test to Speech, including navigation TTS, voice TTS, Bluetooth phone, X-CALL), instrument alarm sound, radar alarm sound and key tone.

[0125] After the audio data enters the DSP module, audio routing is performed first, the audio signal transmitted by the i2S protocol is converted into audio, and the TDM signal is output to the Bluetooth BT chip. All channel audio mixing (multimedia, TTS, telephone, alarm sound, etc.) and sound effect processing (volume, timbre, sound field adjustment; complex audio software filtering, channel delay; sound effect algorithms, such as DTS, Dolby, etc.) are completed by the car system DSP; the BT chip's Bluetooth audio sharing technology based on LE Audio can send all connected Bluetooth devices, that is, all sound output devices with Bluetooth modules and that have been connected can make sounds; it can also be based on location, using the direction to share audio with sound output devices with Bluetooth modules and that have been connected at related locations, so that the alarm sound, radar sound, and navigation sound can be made according to the needs of different speakers in the car.

[0126] The present application also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor. When the processor executes the computer program, it implements the functions required to be implemented by the above-mentioned in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission.

[0127] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a vehicle controller, it can achieve the functions to be achieved by the above-mentioned in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission.

[0128] Figure 2 It is an exemplary structural diagram of an electronic device capable of implementing a method for in-vehicle sound transmission based on vehicle-mounted Bluetooth transmission provided according to an embodiment of the present application.

[0129] like Figure 2As shown, the electronic device includes an input device 501, an input interface 502, a central processor 503, a memory 504, an output interface 505, and an output device 506. The input interface 502, the central processor 503, the memory 504, and the output interface 505 are interconnected through a bus 507, and the input device 501 and the output device 506 are connected to the bus 507 through the input interface 502 and the output interface 505, respectively, and then connected to other components of the electronic device. Specifically, the input device 504 receives input information from the outside, and transmits the input information to the central processor 503 through the input interface 502; the central processor 503 processes the input information based on the computer executable instructions stored in the memory 504 to generate output information, temporarily or permanently stores the output information in the memory 504, and then transmits the output information to the output device 506 through the output interface 505; the output device 506 outputs the output information to the outside of the electronic device for use by the user.

[0130] That is to say, Figure 2 The electronic device shown can also be implemented as comprising: a memory storing computer executable instructions; and one or more processors, which can implement the combination when executing the computer executable instructions. Figure 1 The invention describes a method for transmitting sound in a car based on car Bluetooth transmission.

[0131] In one embodiment, Figure 2 The electronic device shown can be implemented to include: a memory 504, configured to store executable program code; one or more processors 503, configured to run the executable program code stored in the memory 504 to execute the functions to be implemented by the vehicle-mounted controller in the audio information transmission method for the vehicle-mounted system in the above-mentioned embodiment.

[0132] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0133] The memory may include non-permanent storage in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0134] Computer readable media include permanent and non-permanent, removable and non-removable, and the media can be implemented by any method or technology to store information. The information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), data versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0135] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0136] In addition, it is obvious that the word "comprising" does not exclude other units or steps. Multiple units, modules or devices stated in the device claim can also be implemented by one unit or the overall device through software or hardware.

[0137] The flow chart and block diagram in the accompanying drawings illustrate the possible architecture, function and operation of the system, method and computer program product according to various embodiments of the present application. In this regard, each square box in the flow chart or block diagram can represent a module, a program segment or a part of a code, and a module, a program segment or a part of a code includes one or more executable instructions for realizing the specified logical function. It should also be noted that in some implementations as replacements, the functions marked in the square box can also occur in a sequence different from that marked in the accompanying drawings. For example, two square boxes identified 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 square box in the block diagram and / or flow chart, and the combination of the square boxes in the block diagram and / or the total flow chart can be implemented with a dedicated hardware-based system that performs the specified function or operation, or can be implemented with a combination of dedicated hardware and computer instructions.

[0138] The processor referred to in this embodiment may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0139] The memory can be used to store computer programs and / or modules. The processor realizes various functions of the device / terminal equipment by running or executing the computer programs and / or modules stored in the memory and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0140] In this embodiment, if the module / unit integrated in the device / terminal equipment is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. Although the present application is disclosed as above in terms of a preferred embodiment, it is not intended to limit the present application. Any technical personnel in this field may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of the present application shall be based on the scope defined by the claims of the present application.

[0141] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0142] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, a person skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for in-vehicle sound transmission based on vehicle-mounted Bluetooth transmission, for distributing sound information to one or more sound output devices with Bluetooth modules, characterized in that: The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission includes: Get the sound information to be output; Get the sound source type of the sound information to be output; Acquire a sound allocation strategy database, wherein the sound allocation strategy database includes a plurality of allocation strategies and a preset sound source type corresponding to each allocation strategy; Determine whether the sound source type is the same as a preset sound source type, if so, Obtaining the allocation strategy corresponding to the preset sound source type that is the same as the sound source type; Delivering the to-be-outputted sound information to one or more corresponding sound output devices according to the allocation strategy; The audio source types include radar audio source, T-BOX audio source, and Bluetooth phone audio source; When the sound source type is a radar sound source, the allocation strategy includes: Obtain obstacle location information; Obtaining location information of each sound output device; According to the obstacle position information and the position information of each sound output device, the sound information to be output is distributed to the sound output device closest to the obstacle position information; When the audio source type is a T-BOX audio source, the allocation strategy includes: Obtain in-vehicle image information; Obtaining the position of each passenger in the car based on the in-car image information; Acquire a position relationship database of each sound output device, wherein the position relationship database of each sound output device includes each sound output device and a preset passenger position corresponding to each sound output device; Determine whether there is a passenger position in each obtained passenger position that is the same as the preset passenger position. If so, Allocating the sound information to be output to the sound output device corresponding to the preset passenger position that is the same as each of the acquired passenger positions; When the audio source type is a Bluetooth phone audio source, the allocation strategy includes: Obtain in-vehicle image information; Determine whether there is a passenger wearing the sound output device according to the in-car image information, and if so, The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

2. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission as claimed in claim 1, characterized in that: When the audio source type is a Bluetooth phone audio source, the allocation strategy further includes: Determine whether there is a passenger wearing the sound output device according to the in-car image information, if not, The sound information to be output is distributed to the sound output device closest to the main driver's seat.

3. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission as claimed in claim 2, characterized in that: The sound source type further includes a prompt sound source; When the sound source type is a prompt sound source, the allocation strategy includes: Get the prompt sound source type, where the prompt sound source type includes system prompt sound or volume adjustment feedback sound, If the source type of the prompt sound is a system prompt sound or a volume adjustment feedback sound, then Allocating the sound information to be output to the sound output device closest to the main driver's seat and / or allocating the sound information to be output to the sound output device closest to the co-driver's seat; If the source type of the prompt sound is the back door memory success prompt sound, then The sound information to be output is distributed to the sound output device close to the rear seat.

4. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission as claimed in claim 3, characterized in that: The sound source type further includes a voice broadcast sound source or an instrument alarm sound source; When the sound source type is a voice broadcast sound source or an instrument alarm sound source, the allocation strategy includes: The sound information to be output is distributed to the sound output device closest to the main driver's seat and / or the sound information to be output is distributed to the sound output device closest to the co-driver's seat.

5. The in-vehicle sound transmission method based on vehicle-mounted Bluetooth transmission as claimed in claim 1, characterized in that: The sound source types further include prompt sound source, key sound source, voice broadcast sound source, multimedia sound source and instrument alarm sound source; When the sound source type is any one of a radar sound source, a T-BOX sound source, a Bluetooth phone sound source, a prompt sound source, a key sound source, a voice broadcast sound source, a multimedia sound source, and an instrument alarm sound source, the allocation strategy includes: Get current fuel level information; Get current navigation information; Determine the estimated fuel consumption of the current vehicle to reach the destination based on the current navigation information; When the current fuel quantity information is less than the used fuel quantity estimated information or when the difference between the current fuel quantity information and the used fuel quantity estimated information is less than a preset threshold; then The sound information to be output is distributed to the sound output device closest to the main driver, and a sleep signal is generated and transmitted to other sound output devices except the sound output device closest to the main driver.

6. A vehicle sound transmission device based on vehicle-mounted Bluetooth transmission, characterized in that: The in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission includes: A module for acquiring sound information to be output, wherein the module is used to acquire sound information to be output; A sound source type acquisition module, the sound source type acquisition module is used to obtain the sound source type of the sound information to be output; A sound distribution strategy database acquisition module, the sound distribution strategy database acquisition module is used to obtain a sound distribution strategy database, the sound distribution strategy database includes a plurality of distribution strategies and a preset sound source type corresponding to each distribution strategy; A determination module, the determination module is used to determine whether the sound source type is the same as a preset sound source type; An allocation strategy acquisition module, wherein the allocation strategy acquisition module is used to acquire an allocation strategy corresponding to a preset sound source type that is the same as the sound source type when the judgment module judges that the sound source type is yes; A transmission module, the transmission module is used to transmit the to-be-outputted sound information to one or more corresponding sound output devices according to the allocation strategy; The audio source types include radar audio source, T-BOX audio source, and Bluetooth phone audio source; When the sound source type is a radar sound source, the allocation strategy includes: Obtain obstacle location information; Obtaining location information of each sound output device; According to the obstacle position information and the position information of each sound output device, the sound information to be output is distributed to the sound output device closest to the obstacle position information; When the audio source type is a T-BOX audio source, the allocation strategy includes: Obtain in-vehicle image information; Obtaining the position of each passenger in the car based on the in-car image information; Acquire a position relationship database of each sound output device, wherein the position relationship database of each sound output device includes each sound output device and a preset passenger position corresponding to each sound output device; Determine whether there is a passenger position in each obtained passenger position that is the same as the preset passenger position. If so, Allocating the sound information to be output to the sound output device corresponding to the preset passenger position that is the same as each of the acquired passenger positions; When the audio source type is a Bluetooth phone audio source, the allocation strategy includes: Obtain in-vehicle image information; Determine whether there is a passenger wearing the sound output device according to the in-car image information, and if so, The sound information to be output is distributed to the sound output devices corresponding to the preset passenger positions which are the same as the acquired passenger positions.

7. A vehicle, characterized in that: The vehicle comprises: An in-vehicle sound transmission device based on in-vehicle Bluetooth transmission, wherein the in-vehicle sound transmission device based on in-vehicle Bluetooth transmission is the in-vehicle sound transmission device based on in-vehicle Bluetooth transmission according to claim 6; The sound output device is provided with a built-in Bluetooth module, and each sound output device is connected to the in-vehicle sound transmission device based on vehicle-mounted Bluetooth transmission; wherein, The in-vehicle sound transmission device based on in-vehicle Bluetooth transmission adopts the in-vehicle sound transmission method based on in-vehicle Bluetooth transmission as described in any one of claims 1 to 5 to transmit the sound information to be output to one or more of the sound output devices.

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