WO2023056764A1

WO2023056764A1 - In-vehicle call method and apparatus, system, and vehicle

Info

Publication number: WO2023056764A1
Application number: PCT/CN2022/102813
Authority: WO
Inventors: 黄嘉桐; 丁冠源; 回姝; 郑红丽; 郭富琦; 郑彤
Original assignee: 中国第一汽车股份有限公司
Priority date: 2021-10-08
Filing date: 2022-06-30
Publication date: 2023-04-13
Also published as: CN113766057A

Abstract

The present application discloses an in-vehicle call method and apparatus, a system, and a vehicle. The in-vehicle call method comprises: establishing a communication connection between different areas in a vehicle according to a call request, the different areas comprising at least two areas; acquiring audio information from one of the areas after the communication connection is established; and transmitting the acquired audio information to a playback source of at least one of the other areas of the communication connection. In the in-vehicle call method of the present application, the communication connection is established by means of the call request initiated by an infotainment control system, so as to enable users in different areas to perform voice communication with users in other areas, thereby facilitating the communication between users in multiple areas separated from each other, and allowing for calls according to call requests of users, thus protecting user privacy.

Description

Method, device, system and vehicle for in-vehicle communication

technical field

The present application relates to the technical field of automobiles, in particular to an in-vehicle communication method, an in-vehicle communication device, an in-vehicle communication system and a vehicle.

Background technique

At present, in the automotive industry, such as MPV, minibus, cash transport vehicles and other special scenarios, the front row is mostly a fixed driver's seat, and the rear row is a passenger area. In order to meet the needs of the market and create a private space for users to enjoy, the front row and the rear row are often separated by partitions to achieve sound insulation. At the same time, it also brings new problems of communication difficulties between users and passengers. Therefore, the front and rear areas in the car were invented. The platoon intercom system meets the requirements of the vehicle environment and meets the test standards of vehicle regulations.

In the prior art, the following methods are usually used to communicate in the vehicle area:

1. The car entertainment system is aimed at the intercom devices in the car and outside the car, and realizes the audio and video transmission inside the car and outside the car through Ethernet communication. This method cannot achieve inter-vehicle communication with the help of the network environment and external connection equipment;

2. Place multiple Android systems in the car, and communicate through the Bluetooth module of the Android system itself to realize audio transmission between the cars; this solution requires multiple internal entertainment hosts to install the Android system, which increases the cost and weight of the vehicle.

Therefore, it is desirable to have a technical solution to solve or at least alleviate the above-mentioned deficiencies of the prior art.

Contents of the invention

The object of the present invention is to provide an in-vehicle communication method to at least solve the above-mentioned one technical problem.

One aspect of the present invention provides an in-vehicle communication method for communicating between users in different areas of the vehicle. The in-vehicle communication method includes:

Establishing a communication connection between different areas in the vehicle according to the call request, the different areas include at least two areas;

acquiring audio information from one of the areas since the communication connection was established;

The acquired audio information is delivered to the play source of at least one zone in the other zones of the communication connection.

Optionally, the communication connection between different areas in the vehicle is established according to the call request, and the different areas include at least two areas including:

Obtaining a request signal transmitted by a human-computer interaction device in one area in different areas;

Generate a call request according to the request signal, and the area where the request signal is transmitted is called a request area;

passing the generated call request to the human-computer interaction device in at least one area in other areas;

Acquiring a feedback signal fed back by the human-computer interaction device in the area where the call request is received according to the call request;

Determine whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area, and if so, establish a communication connection between the area and the requesting area.

Optionally, the call request includes an area number and request information, and each area number corresponds to an area;

The human-computer interaction device that transmits the generated call request to at least one area in other areas includes:

The call request is sent to the human-computer interaction device in the corresponding area according to the area number.

Optionally, the determining whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area includes:

Obtaining a truth table, the truth table including a call establishment value;

Obtain the feedback signal value in the feedback signal;

It is judged whether the value of the feedback signal is equal to the call establishment value, and if so, it is judged that the communication connection is established.

Optionally, before judging whether the value of the feedback signal is equal to the call establishment value, the judging whether to establish a communication connection between the region and the requesting region according to the feedback signal provided by each region further includes:

Obtaining the state of use of the sound focus when the feedback signal is received, the state of use of the sound focus includes a priority occupation state and a non-priority occupation state;

If the use state of the sound focus is a non-priority occupied state, it is judged whether the value of the feedback signal is equal to the call establishment value.

Optionally, the truth table includes a call-waiting value;

The determining whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area further includes:

Obtain the feedback signal value in the feedback signal;

It is judged whether the value of the feedback signal is equal to the waiting call value, and if so, a waiting prompt tone is generated and transmitted to the playback source in the requesting area.

Optionally, the playback source for delivering the acquired audio information to at least one area in other areas of the communication connection includes:

Acquiring the first audio information received by the sound receiving device in any one of the areas where the communication connection is established;

Acquiring the second audio information output by the playback source in the area where the sound receiving device receiving the first audio information is located;

performing echo cancellation according to the first audio information and the second audio information, so as to acquire third audio information as the audio information;

The audio information is sent to the play source of at least one zone among the zones where the communication connection is established.

Optionally, the playback source for acquiring audio information from one area in different areas and delivering it to at least one area in other areas further includes:

Before performing echo cancellation according to the first audio information and the second audio information to acquire third audio information as the audio information, performing denoising processing on the acquired first audio information and second audio information .

The present application also provides an in-vehicle communication device, the in-vehicle communication device includes:

A communication connection establishment module, the communication connection establishment module is used to establish a communication connection between different areas in the vehicle according to a call request, and the different areas include at least two areas;

An audio acquisition module, the audio acquisition module is used to acquire audio information from one area in each area after the communication connection is established;

An audio information delivery module, configured to deliver the acquired audio information to a playback source in at least one of the other areas of the communication connection.

The present application also provides a vehicle-mounted intercom system, the vehicle-mounted intercom system is arranged in a vehicle, the vehicle includes a plurality of different areas, and the vehicle-mounted intercom system includes:

sound receiving device, each area is provided with at least one sound receiving device;

Playing source, each locale has at least one playing source;

An infotainment control system, the infotainment control system includes a human-computer interaction device and an infotainment controller, the infotainment controller includes an in-vehicle communication device, and the infotainment controller communicates with each sound receiving device, playback source and The human-computer interaction device is connected, and the in-vehicle communication device is used to implement the above-mentioned in-vehicle communication method.

Optionally, the infotainment controller is connected to each of the human-computer interaction devices through an A2B harness;

The infotainment controller is connected to each of the sound receiving devices through an A2B wire harness;

The infotainment controller is connected to each of the playback sources through an A2B wire harness.

The present application also provides a vehicle, the vehicle includes the above-mentioned in-vehicle intercom system.

Beneficial effect

The in-vehicle call method of the present application establishes a communication connection through the call request proposed by the infotainment control system, and then allows users in different areas to communicate with users in other areas. On the one hand, it can facilitate several separate Users in the area can communicate with each other. On the other hand, they can make a call according to the user's call request, which is convenient to protect the user's privacy. When the user does not want to have a conversation, it is enough to refuse the call, and the call request of this application can be It can be proposed by any area, that is, the driver can propose to the rear passengers, or the rear passengers can propose to the driver. It is convenient to use, especially in some emergency situations for the rear passengers, it can be done without making a phone call. Communicate with the driver.

Description of drawings

FIG. 1 is a schematic flowchart of a method for in-vehicle communication according to an embodiment of the present application.

FIG. 2 is a schematic diagram of system equipment for implementing the method for in-vehicle communication shown in FIG. 1 .

FIG. 3 is a device schematic diagram of an in-vehicle communication device according to an embodiment of the present application.

FIG. 4 is a system schematic diagram of an in-vehicle intercom system installed in a vehicle according to an embodiment of the present application.

Reference signs:

100. Communication connection establishment module; 101. Audio acquisition module; 102. Audio information transmission module; 103. Speaker; 104. Infotainment controller, 105. MIC.

Detailed ways

In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

The in-vehicle call method shown in FIG. 1 is used to make calls between users in different areas of the vehicle.

In this implementation, the different areas of the vehicle can refer to two interconnected areas, or two disconnected areas. For example, a banknote transport vehicle includes a cockpit and a banknote storage compartment, and the banknote storage compartment is usually connected to the The cockpit is separated, at this time, it can be considered that the banknote storage compartment is one area, and the cockpit is another area.

For another example, on a bus, it usually includes the driver's seat and the position of the body for passengers to take. At this time, the driver's seat can be considered as one area, and the body for passengers can be considered as another area. It is understandable What's more, in some cases, the area can also be formed according to the position of the seat. For example, the body of the bus has 20 seats, and each seat can be an area, or multiple adjacent seats can form an area. .

The in-vehicle call method as shown in Figure 1 includes:

Step 1: establish a communication connection between different areas in the vehicle according to the call request, and the different areas include at least two areas;

Step 2: Acquiring audio information from one of the areas after the communication connection is established;

Step 3: Delivering the acquired audio information to the play source of at least one area in other areas connected by communication.

In this embodiment, the communication connection between different areas in the vehicle is established according to the call request, and the different areas include at least two areas including:

A call request is generated according to the request signal, and the area where the request signal is transmitted is called the request area;

Obtain a feedback signal fed back by the human-computer interaction device in the area where the call request is received according to the call request;

Taking the cash transport vehicle as an example, the cockpit of the cash transport vehicle is one area, and the cash transport cabin is another area. Both areas are equipped with human-computer interaction devices. When the human-computer interaction device in one area outputs a request signal, for example, When the cockpit outputs a request signal, obtain the request signal and generate a call request according to the request signal, and pass the call request to the human-computer interaction device in at least one area in other areas, for example, to the people in the cash transport cabin On the machine-computer interaction device, at this time, the user in the cash transport cabin usually performs human-computer interaction. For example, the button on the motor human-computer interaction device responds to the request of human-computer interaction, which generates a feedback signal. At this time and acquiring a feedback signal fed back by the human-computer interaction device in the area that received the call request according to the call request.

Finally, according to the feedback signal provided by each area, it is judged whether to establish a communication connection between the area and the request area, and if so, establish a communication connection between the area and the request area.

It can be understood that when there are multiple areas, the call request can be selectively sent to several areas, or the call request can be sent to all areas at the same time.

In this embodiment, the call request includes area numbers and request information, and each area number corresponds to an area;

For example, a bus has multiple areas, and each area has an area number. For example, the cockpit is numbered 1, seat A is numbered 2, and seat B is numbered 3. When the obtained call request contains When the area number is 2, the call request is sent to the human-computer interaction device in the corresponding area according to the area number, that is, the call request is sent to the human-computer interaction device of seat A according to the area number 2.

In this embodiment, judging whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area includes:

Obtain the truth table, which includes the call establishment value;

Obtain the feedback signal value in the feedback signal;

For example, the truth table is: call establishment value=1, when the feedback signal value is 1, it is considered equal to the call establishment value, and it is determined that the communication connection is established.

In this embodiment, the truth table may further include a call rejection value=2, and when the feedback signal value is 2, it is considered equal to the call rejection value, and it is determined that a communication connection is not established.

In this embodiment, the truth table also includes a call waiting value;

Judging whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area further includes:

Obtain the feedback signal value in the feedback signal;

It is judged whether the value of the feedback signal is equal to the waiting call value, and if so, a waiting prompt tone is generated and transmitted to the playback source in the request area.

For example, at this time, the user has some things at hand, and it is inconvenient to speak, but it does not mean rejection, but it may be possible to wait for 10 seconds before speaking. At this time, by outputting a feedback equal to the value of the waiting call The signal value can generate a waiting tone. When the user who requests to establish a call in another area receives the waiting tone, he knows the current situation of the user in the area he requests to establish a connection and can choose to wait or other operate.

Advantageously, the waiting prompt tone can be some text representations of users who are inconvenient to speak, for example, please wait for me for 5 minutes, etc., and form the waiting prompt tone through text recognition and conversion into voice.

In this embodiment, before judging whether the value of the feedback signal is equal to the call establishment value, judging whether to establish a communication connection between the region and the requesting region according to the feedback signal provided by each region further includes:

Obtain the use status of the sound focus when the feedback signal is received, and the use status of the sound focus includes the priority occupancy state and the non-priority occupancy state;

For example, in some emergency situations, the user may need to answer other voice conversations first. For example, when an emergency occurs, dial 110. At this time, it is hoped that other voices in the car will not interfere with the call to 110. , therefore, it is necessary to set a priority before establishing a call. Specifically, after receiving the request, judge the current use state of the sound focus, if there is no high-priority program occupation (E//I/B/BT-CALL), then judge whether the feedback signal value is equal to the call establishment value, If there is a program with a high priority occupying it, it will directly refuse or disconnect directly.

In this embodiment, the play source that transmits the acquired audio information to at least one of the other areas of the communication connection includes:

Echo cancellation is performed according to the first audio information and the second audio information, so as to obtain third audio information as the audio information; in one embodiment, the third audio information is obtained through the first audio information-second audio information audio information.

Through the two-way echo cancellation algorithm, it meets the real-time communication needs of the front row and the rear row of special models, close to the user's use scene, and improves the entertainment and functionality of the car entertainment system. In this embodiment, acquiring audio information from one area in different areas and delivering it to the playback source of at least one area in other areas further includes:

Before performing echo cancellation according to the first audio information and the second audio information to obtain third audio information as the audio information, denoising processing is performed on the acquired first audio information and second audio information.

Through denoising processing, the acquired audio information can be made clearer and more accurate.

In this implementation, step 2 and step 3 can be a continuous and repeated step. For example, when a communication connection is established between area A and area B, the user in area A may speak first. At this time, area A is The audio information can be acquired and passed to the B area, and the users in the B area will also speak after hearing the speech of the users in the A area, and pass the audio information to the A area through step 2 of this application, and this repetition continues until Disconnect.

Referring to Fig. 3, the present application also provides an in-vehicle communication device, which includes a communication connection establishment module 100, an audio acquisition module 101 and an audio information delivery module 102, and the communication connection establishment module 100 is used to Establish a communication connection between different areas in the car, and the different areas include at least two areas; the audio acquisition module 101 is used to acquire audio information from one area in each area after the communication connection is established; the audio information transfer module 102 is used to acquire The audio information is transmitted to the playback source of at least one zone in the other zones of the communication connection.

Referring to Fig. 4, the present application also provides a vehicle-mounted intercom system. The vehicle-mounted intercom system is arranged in a vehicle, and the vehicle includes a plurality of different areas. system, each area is provided with at least one sound receiving device; each area is provided with at least one playback source; the infotainment control system includes a human-computer interaction device and an infotainment controller 104, and the infotainment controller includes an in-vehicle communication device, so The infotainment controller 104 is respectively connected with each sound receiving device, playback source and human-computer interaction device; the in-vehicle communication system is connected with the infotainment controller, and the in-vehicle communication device is used to realize the above-mentioned in-vehicle communication method .

In this embodiment, the infotainment controller 104 is connected to each of the human-computer interaction devices through an A2B harness;

The infotainment controller 104 is connected to each sound receiving device through an A2B harness;

The infotainment controller 104 is connected to each of the playing sources through the A2B harness.

In this embodiment, the sound receiving device may be MIC105 (independent microphone, capable of sound source localization);

In this embodiment, the playback source is the speaker 103, and the speaker includes an independent speaker and/or an external speaker.

In this embodiment, the human-computer interaction device may be a central control screen, and the central control screen may include a front row of screens and a rear row of screens.

In this embodiment, each independent microphone and speaker is connected to the A2B bus. In this embodiment, the A2B bus is defined as 8-channel transmission. It can be understood that in other implementations, the A2B bus can reserve 16 channels.

In one embodiment, the channel allocation of the A2B bus is as follows:

The present application also provides a vehicle, the vehicle includes a cockpit and a passenger compartment, wherein the cockpit is referred to as the front row area, and the passenger compartment is referred to as the rear row area, and the vehicle includes the above-mentioned in-vehicle intercom system.

In the vehicle of this embodiment, the vehicle infotainment controller is installed in the instrument panel, and is connected to other controllers in the vehicle through a bus to mainly drive the display of infotainment functions on the instrumentation in the vehicle and other screens.

In this embodiment, the independent speaker is arranged on the headrest of the seat in the car, and is connected to other controllers in the car through the A2B wiring harness, and is mainly used for outputting sound files.

In this implementation, the external speaker is used as the speaker in the car, and is generally arranged on the door and the A-pillar. The speaker in the car is connected to the power amplifier in the car through an analog twisted pair, and the power amplifier in the car is connected to the infotainment control system. , the external speakers are mainly used for the output of sound files.

In this embodiment, the independent MIC (capable of sound source localization) is used as the sound pickup device in the car, which is generally arranged above the car and connected to other controllers in the car through an analog twisted pair, mainly used to identify the sound in the car .

In this embodiment, the A2B bus connection device (car audio transmission harness) is used to connect the car infotainment controller, MIC, power amplifier (external speaker) and independent speaker respectively.

In this embodiment, the in-vehicle communication device is integrated on the SOC chip of the infotainment controller, which is not limited to LINUX\QNX\Android systems.

This application is aimed at the use scenarios of special models in the car to realize inter-car communication (front row/rear row). It is equipped on a set of infotainment control system, not limited to the system type (LINUX\QNX\Android), through the internal audio source Circulation and technical processing to ensure real-time and synchronous interaction, and to meet the real-time communication needs between the driver in the car and the rear passengers

It should be noted that the foregoing explanations of the method embodiments are also applicable to the system of this embodiment, and will not be repeated here.

The present application also provides an electronic device, including 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, the above in-vehicle communication method is realized.

The present application also provides a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, the above in-vehicle communication method can be realized.

Fig. 2 is an exemplary structural diagram of an electronic device capable of implementing an in-vehicle calling method according to an embodiment of the present application.

As shown in FIG. 2 , the electronic device includes an input device 501 , an input interface 502 , a central processing unit 503 , a memory 504 , an output interface 505 and an output device 506 . Wherein, the input interface 502, the central processing unit 503, the memory 504 and the output interface 505 are connected to each other through the bus 507, and the input device 501 and the output device 506 are respectively connected to the bus 507 through the input interface 502 and the output interface 505, and then connected to other components of the electronic device. Component connections. Specifically, the input device 504 receives input information from the outside, and transmits the input information to the central processing unit 503 through the input interface 502; the central processing unit 503 processes the input information based on computer-executable instructions stored in the memory 504 to generate output information, temporarily or permanently store the output information in the memory 504, and then transmit 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 the user to use.

That is to say, the electronic device shown in FIG. 2 can also be implemented as including: a memory storing computer-executable instructions; and one or more processors, which can Realize the in-vehicle call method described in conjunction with FIG. 1 .

In one embodiment, the electronic device shown in FIG. 2 may be implemented to include: a memory 504 configured to store executable program code; one or more processors 503 configured to run the executable code stored in the memory 504. The program code is used to execute the method for in-vehicle communication in the above-mentioned embodiment.

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

Memory may include non-permanent storage in computer-readable media, in the form of random access memory (RAM) and/or nonvolatile memory such as read-only memory (ROM) or flash RAM. Memory is an example of computer readable media.

Computer-readable media include both permanent and non-permanent, removable and non-removable media, which may be implemented by any method or technology for storage of information. Information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for computers 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, compact disc read-only memory (CD-ROM), data versatile disc (DVD) or other optical storage, A magnetic tape cartridge, tape disk storage or other magnetic storage device, or any other non-transmission medium, that may be used to store information that can be accessed by a computing device.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems or computer program products. Accordingly, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps. A plurality of units, modules or means stated in the device claims can also be realized by software or hardware by one unit or overall device.

The flowchart and block diagrams in the Figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of code that includes one or more Executable instructions. It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks identified in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. It should also be noted that each block in the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or overall flowchart illustrations, can be implemented by a dedicated hardware-based system that performs the specified functions or operations. implemented, or may be implemented by a combination of special purpose hardware and computer instructions.

The processor referred to in this embodiment may be a central processing unit (Central Processing Unit, CPU), and may also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit , ASIC), off-the-shelf programmable gate array (Field-Programmable Gate Array, 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, or the like.

The memory can be used to store computer programs and/or modules, and the processor realizes various functions of the device/terminal device 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, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); The data created by the use (such as audio data, phone book, etc.) and so on. In addition, the memory can include high-speed random access memory, and can also include non-volatile memory, such as hard disk, internal memory, plug-in hard disk, smart memory card (Smart Media Card, SMC), secure digital (Secure Digital, SD) card , flash card (Flash Card), at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device.

In this embodiment, if the integrated module/unit of the device/terminal device is implemented in the form of a software function 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 realizes all or part of the processes in the methods of the above embodiments, and can also be completed by instructing related hardware through computer programs, and the computer programs can be stored in a computer-readable storage medium. When executed by the processor, the steps in the above-mentioned various method embodiments can be realized. Wherein, the computer program includes computer program code, and the computer program code may be in the form of source code, object code, 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, removable hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access Memory (RAM, Random Access Memory), electrical carrier signal, telecommunication signal and software distribution medium, etc. 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 with preferred embodiments, it is not used to limit the present application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, the present application The protection scope of the application shall be defined by the claims of this application.

Although the present invention has been described in detail with general descriptions and specific embodiments above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, the modifications or improvements made on the basis of not departing from the spirit of the present invention all belong to the protection scope of the present invention.

Claims

A method for in-vehicle communication, used for communicating between users in different areas of the vehicle, characterized in that the method for in-vehicle communication includes:

Establishing a communication connection between different areas in the vehicle according to the call request, the different areas include at least two areas;

acquiring audio information from one of the areas since the communication connection was established;

The acquired audio information is delivered to the play source of at least one zone in the other zones of the communication connection.
The in-vehicle calling method according to claim 1, wherein the communication connection between different areas in the car is established according to the call request, and the different areas include at least two areas including:

Obtaining a request signal transmitted by a human-computer interaction device in one area in different areas;

Generate a call request according to the request signal, and the area where the request signal is transmitted is called a request area;

passing the generated call request to the human-computer interaction device in at least one area in other areas;

Acquiring a feedback signal fed back by the human-computer interaction device in the area where the call request is received according to the call request;

Determine whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area, and if so, establish a communication connection between the area and the requesting area.
The in-vehicle call method according to claim 2, wherein the call request includes an area number and request information, and each area number corresponds to an area;

The human-computer interaction device that transmits the generated call request to at least one area in other areas includes:

The call request is sent to the human-computer interaction device in the corresponding area according to the area number.
The in-vehicle communication method according to claim 3, wherein said determining whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area includes:

Obtaining a truth table, the truth table including a call establishment value;

Obtain the feedback signal value in the feedback signal;

It is judged whether the value of the feedback signal is equal to the call establishment value, and if so, it is judged that the communication connection is established.
The method for talking in a car according to claim 4, wherein before judging whether the value of the feedback signal is equal to the value of establishing a call, it is judged whether to establish the call according to the feedback signal provided by each area. The communication link between the zone and the requesting zone further includes:

Obtaining the use status of the sound focus when the feedback signal is received, the use status of the sound focus includes a priority occupation state and a non-priority occupation state;

If the use state of the sound focus is a non-priority occupied state, it is judged whether the value of the feedback signal is equal to the call establishment value.
The in-vehicle calling method according to claim 4, wherein the truth table includes a waiting call value;

The determining whether to establish a communication connection between the area and the requesting area according to the feedback signal provided by each area further includes:

Obtain the feedback signal value in the feedback signal;

It is judged whether the value of the feedback signal is equal to the waiting call value, and if so, a waiting prompt tone is generated and transmitted to the playback source in the requesting area.
The in-vehicle call method according to claim 6, wherein the broadcasting source for transmitting the acquired audio information to at least one of the other areas of the communication connection comprises:

Acquiring the first audio information received by the sound receiving device in any one of the areas where the communication connection is established;

Acquiring the second audio information output by the playback source in the area where the sound receiving device receiving the first audio information is located;

performing echo cancellation according to the first audio information and the second audio information, so as to acquire third audio information as the audio information;

The audio information is sent to the play source of at least one zone among the zones where the communication connection is established.
The in-vehicle call method according to claim 7, wherein the playback source for acquiring audio information from one of the different areas and delivering it to at least one of the other areas further comprises:

Before performing echo cancellation according to the first audio information and the second audio information to acquire third audio information as the audio information, performing denoising processing on the acquired first audio information and second audio information .
An in-vehicle communication device, characterized in that the in-vehicle communication device includes:

A communication connection establishment module, the communication connection establishment module is used to establish a communication connection between different areas in the vehicle according to a call request, and the different areas include at least two areas;

An audio acquisition module, the audio acquisition module is used to acquire audio information from one area in each area after the communication connection is established;

An audio information delivery module, configured to deliver the acquired audio information to a playback source in at least one of the other areas of the communication connection.
A vehicle-mounted intercom system, the vehicle-mounted intercom system is arranged in a vehicle, and the vehicle includes a plurality of different areas, wherein the vehicle-mounted intercom system includes:

sound receiving device, each area is provided with at least one sound receiving device;

Playing source, each locale has at least one playing source;

An infotainment control system, the infotainment control system includes a human-computer interaction device and an infotainment controller, the infotainment controller includes an in-vehicle communication device, and the infotainment controller communicates with each sound receiving device, playback source and The human-computer interaction device is connected, and the in-vehicle communication device is used to realize the in-vehicle communication method as described in any one of claims 1 to 8.
The vehicle-mounted communication system according to claim 10, wherein the infotainment controller is connected to each of the human-computer interaction devices through an A2B wire harness;

The infotainment controller is connected to each of the sound receiving devices through an A2B wire harness;

The infotainment controller is connected to each of the playback sources through an A2B wire harness.
A vehicle, characterized in that the vehicle comprises the in-vehicle intercom system according to any one of claims 10 or 11.