CN210327717U

CN210327717U - Vehicle conference mode omnibearing voice interaction system

Info

Publication number: CN210327717U
Application number: CN201921398005.9U
Authority: CN
Inventors: 姚宏杰; 姚军; 孙江燕
Original assignee: Yanfeng Visteon Electronic Technology Nanjing Co Ltd
Current assignee: Yanfeng Visteon Electronic Technology Nanjing Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-04-14
Anticipated expiration: 2029-08-26

Abstract

The utility model relates to an all-round voice interaction system of vehicle meeting mode, the system is including many pairs of microphones, MCU, the SOC treater, sound input switching module, the analytic module of sound processing, power amplifier, loudspeaker, wireless communication module, every left and right sides to one row of seat is located to the microphone, every input that connects sound input switching module to the microphone, sound input switching module's output termination sound processing analytic module's input, sound processing analytic module connects wireless communication module and power amplifier's input, wireless communication module and cell-phone interconnection, power amplifier connects loudspeaker, MCU connects sound input switching module and sound processing analytic module control end, MCU connects the SOC treater through the SPI bus. The system can realize the voice interaction at any time and any place in a conference mode when a vehicle is parked or driven, has the functions of omnibearing voice recognition and interaction in the vehicle, and can simultaneously carry out interference-free intercommunication and conversation communication for a plurality of people.

Description

Vehicle conference mode omnibearing voice interaction system

Technical Field

The utility model relates to a vehicle-mounted entertainment sound technical field especially relates to an all-round voice interaction system of vehicle meeting mode for vehicle speech recognition and voice interaction.

Background

With the rapid development of vehicle-mounted electronic products, users have higher and higher requirements on the space in the vehicle and the riding comfort, and the operation of the vehicle-mounted electronic products is more and more complicated due to more and more keys in the vehicle, including that a rear-row passenger and a front-row passenger can generate great sound to influence other passengers due to the interval and distance between middle seats. In addition, with the popularization of mobile phones and the development of wireless communication technology, more and more telephone communication anytime and anywhere and mobile office telephone conference needs are increased in vehicle rooms, that is, a telephone conference or an emergency frequently occurs when a vehicle takes a car and a participant and a passenger need to perform instant telephone (conference) communication. In the current vehicle indoor teleconference process, a plurality of passengers or all the passengers cannot completely participate in the teleconference process, and information needs to be transmitted by a plurality of persons or converted after meeting, so that the emergency cannot be rapidly, timely and accurately processed and solved, and the requirements of all the passengers on a comfortable riding environment cannot be met.

Disclosure of Invention

An object of the utility model is to provide an all-round voice interaction system of vehicle meeting mode, the vehicle meeting system who has all-round speech recognition and interactive function that provides through this system for every person of taking in the vehicle room all can participate in telephone or video communication simultaneously among, exchange its information such as processing suggestion, idea, measure to emergency promptly, rapidly and accurately, and transmit away.

In order to achieve the above object, the technical solution adopted by the present invention is that a vehicle conference mode omni-directional voice interaction system comprises a plurality of pairs of microphones, an MCU (micro control unit), an SOC processor, and a voice input switching module, sound processing analysis module, power amplifier, loudspeaker (or stereo set), wireless communication module, the left and right sides of one row of indoor seat of vehicle is located to every pair of microphone, every input to microphone parallel connection sound input switching module, sound processing analysis module's input is connected to sound input switching module's output, sound processing analysis module connects wireless communication module and power amplifier's input respectively, wireless communication module wireless communication connects the cell-phone, loudspeaker are connected to power amplifier's output, MCU connects sound input switching module and sound processing analysis module control end respectively, MCU passes through SPI bus connection SOC treater.

As an improvement of the utility model, still including being used for awakening up a plurality of buttons of each pair of microphone, the quantity of button keeps unanimous with the logarithm of microphone at least, and MCU's IO port is all connected to all buttons, and the button is installed in one side of microphone, and the left side of every row of seat in the vehicle room is located to the button.

As an improvement of the utility model, still include touch display screen, touch display screen passes through LVDS bus I2C bus connection SOC treater.

As an improvement of the utility model, sound input switches the module and adopts an analog switch circuit of selecting more to design the realization, and the analytic module of sound processing adopts the audio frequency DSP chip to design the realization.

As an improvement of the utility model, wireless communication module adopts bluetooth module or 3G 4G 5G module or WIFI module.

As an improvement of the utility model, MCU adopts the 32 bit MCU RH850 chip designs of auspicious sa to realize, and the SOC treater adopts the J6PEVM577P treater design realization of TI company.

As an improvement of the present invention, the power amplifier is implemented by adopting the TDF8546 chip design of the car audio amplifier of engimapu.

Compared with the prior art, the utility model discloses a system overall structure design benefit, rational in infrastructure stability, easily realization, easily operation is used, and performance is reliable and stable, and the space and the seatpost of the indoor passenger cabin of vehicle according to the vehicle in the system arrange that a plurality of microphones cover the indoor passenger cabin of vehicle comprehensively to realize the inside all-round pronunciation of vehicle and interact, and have speech recognition's function, can realize many people and carry out the on-vehicle teleconference function of exempting from to disturb intercommunication and dialogue interchange simultaneously. When the system is used, a mobile phone for carrying out a vehicle-mounted teleconference is accessed into the system, the system is set to work in a conference mode through the SOC processor, a microphone at a nearby position is awakened in a key or voice awakening mode as required to pick up the alternating current audio of a user on a corresponding seat, the MCU controls the voice input switching module to carry out real-time audio input seamless switching, meanwhile, the voice processing and analyzing module carries out noise reduction and analysis processing to be divided into two paths of I2S audio output, one path of I2S audio is output to the power amplifier, the power amplifier drives the loudspeaker to output playing audio, the other path of I2S audio is output to the wireless communication module, the wireless communication module converts the audio into a wireless signal to be sent to the mobile phone, and the wireless communication module sends the wireless signal to the mobile phone; the voice of the opposite side received by the mobile phone is received by the wireless communication module and is sent to the sound processing and analyzing module for noise reduction and analysis, and then is output to the power amplifier, and the power amplifier drives the loudspeaker to output playing audio, so that the voice interaction at any time and any place in a system conference mode during parking or driving of a vehicle can be realized.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle conference mode omni-directional voice interaction system according to a preferred embodiment of the present invention.

Fig. 2 is a diagram illustrating a system implementation architecture according to a preferred embodiment of the present invention.

Detailed Description

For the purposes of promoting an understanding and appreciation of the invention, the invention will be further described and illustrated in connection with the accompanying drawings.

Fig. 1 shows that the utility model discloses an all-round voice interaction system of vehicle meeting mode for 6 commercial vehicles of preferred embodiment, including three pairs of microphones, MCU, the SOC treater, sound input switches the module, sound processing analysis module, power amplifier, loudspeaker, wireless communication module, a plurality of buttons and touch display screen for awakening each pair of microphone, each pair of microphone is located the indoor left and right sides of one row of seat of vehicle, specifically including locating left microphone MIC1 and right microphone MIC2 of front bank, locate left microphone MIC3 and right microphone MIC4 of well row and locate left microphone MIC5 and right microphone MIC6 of back bank. The number of the keys is at least consistent with the logarithm of the microphones, or the number of the keys is consistent with the number of the microphones, the number of the keys is preferably set to be three, each key is installed on one side of the microphone on the left side of each row of seats, all the keys are connected with the I/O port of the MCU, and the MCU is used for detecting the states of all the keys in real time. Each pair of microphones is connected with the input end of the sound input switching module in parallel, and the sound input switching module performs voice input switching on each microphone. The output end of the sound input switching module is connected with the input end of the sound processing analysis module, the sound processing analysis module is respectively connected with the wireless communication module and the input end of the power amplifier, the wireless communication module is in wireless communication connection with a mobile phone, the mobile phone can be the mobile phone of any user in a vehicle room, namely, the mobile phone of any user in the vehicle room can be connected into the system to carry out a vehicle-mounted teleconference, but only one mobile phone is allowed to be connected into the system at each time. Loudspeaker are connected to power amplifier's output, MCU connects sound input respectively through I2C bus and switches module and the analytic module control end of sound processing, through MCU control sound input switching module and the operating condition of sound processing analytic module, MCU passes through SPI bus connection SOC treater, the information that is sent by the SOC treater to MCU carries out analytic processing, and by MCU to sound input switching module and the analytic module feedback of sound processing analysis corresponding analytic result. The touch display screen is connected with the SOC processor through an LVDS bus/I2C bus, the touch display screen serves as a human-computer interaction port of the system, and the system can be set to enter a conference mode through the touch display screen.

The SOC processor arranged in the system is multipurpose, on one hand, key trigger information and voice wake-up information are analyzed to achieve wake-up operation of the microphone, on the other hand, control is needed to be conducted on the touch display screen, and in addition, the content of voice position information identification of the microphone and the voice call content of the vehicle-mounted telephone conference and the like can be expanded.

The voice input switching module is designed and realized by adopting a multi-selection analog switch circuit, and has a simple structure and stable and reliable performance. The sound processing and analyzing module is designed and realized by adopting an audio DSP chip, and the existing sound recognition algorithm with the noise reduction function is loaded in the audio DSP chip to reduce noise and analyze input audio data, so that the realization structure is simple and reliable. The wireless communication module adopts any one of a Bluetooth module, a 3G/4G/5G module and a WIFI module, the Bluetooth module is preferably adopted, and the Bluetooth module is connected with the sound processing analysis module through an I2C bus, so that the connection operation between the mobile phone and the system is simple and convenient, and the connection performance is stable and reliable.

Further, as shown in fig. 2, in a specific implementation architecture of the system, the voice input switching module is implemented by using a 74HC4052 chip, the voice processing analysis module is implemented by using a TEF6638 chip, the MCU is implemented by using a 32-bit MCURH850 chip of rassa, the SOC processor is implemented by using a J6PEVM577P processor of TI, the bluetooth module is implemented by using an IC1600 chip, and the power amplifier is implemented by using a TDF8546 chip of engimap.

The method for carrying out the vehicle-mounted teleconference by utilizing the system wakes up each pair of required microphones, and connects the wireless communication module with the mobile phone in a wireless communication way, the system works in a conference mode, the sound picked up by each microphone is switched and input by the sound input switching module and is sent into the sound processing and analyzing module, the sound processing and analyzing module carries out noise reduction and analysis processing on the input voice, then a path of I2S audio is separated out and is output to the power amplifier, the power amplifier drives the loudspeaker to output the audio, a path of I2S audio is separated out and is output to the wireless communication module, the wireless communication module converts the audio into a wireless signal and sends the wireless signal to the mobile phone, and the wireless signal is sent to the mobile phone of the opposite party participating in the teleconference; the voice of the opposite side received by the mobile phone is received by the wireless communication module and is sent to the sound processing and analyzing module for noise reduction and analysis, and then is output to the power amplifier, and the power amplifier drives the loudspeaker to output the audio.

The "wake-up of each pair of microphones" is specifically to wake-up each pair of microphones by manually triggering a key to wake up and/or detecting a specific wake-up word by the SOC processor in a voice wake-up manner.

Aiming at the mode of manually triggering key awakening, the specific operation is as follows: a user manually presses a certain key as required, the MCU detects the on-off state of the key and sends the on-off state to the SOC processor for processing, the SOC processor analyzes the position information of the key and feeds back an analysis result to the MCU, and the MCU controls the sound input switching module to open the corresponding sound input channel, so that the corresponding microphone is awakened. The microphone transmits the collected audio frequency to the sound processing and analyzing module through the sound input channel in the awakening state.

And aiming at the way that the SOC processor detects the specific awakening words to be awakened by voice, the specific operation is as follows: the user presets corresponding specific awakening words for each pair of microphones according to needs and stores the awakening words in the sound processing and analyzing module, after the system is powered on, the SOC processor monitors the voice information of the user in real time, performs noise reduction and analysis processing on the detected voice information and then matches the detected voice information with the preset specific awakening words, after the matching is successful, the SOC processor feeds back the microphone position information corresponding to the matched specific awakening words to the MCU, and the MCU controls the sound input switching module to open the corresponding sound input channel, so that awakening operation is achieved for the corresponding microphones.

The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a vehicle conference mode all-round voice interaction system which characterized in that: including many pairs of microphones, MCU, the SOC treater, sound input switches the module, sound processing analysis module, power amplifier, loudspeaker, wireless communication module, the left and right sides of one row of indoor seat of vehicle is located to every pair of microphone, every input to every pair of microphone parallel connection sound input switches the module, sound processing analysis module's input is connected to sound input switches the output of module, wireless communication module and power amplifier's input is connected respectively to sound processing analysis module, wireless communication module wireless communication connects the cell-phone, loudspeaker is connected to power amplifier's output, MCU connects sound input switching module and sound processing analysis module control end respectively, MCU passes through SPI bus connection SOC treater.

2. The vehicle conference mode omni-directional voice interaction system according to claim 1, further comprising a plurality of keys for waking up each pair of microphones, all keys being connected to the I/O port of the MCU.

3. The vehicle conference mode omni-directional voice interaction system according to claim 2, further comprising a touch display screen connected to the SOC processor through LVDS bus/I2C bus.

4. The vehicle conference mode omni-directional voice interaction system according to any one of claims 1 to 3, wherein the sound input switching module is implemented by adopting a one-out-of-many analog switch circuit design, and the sound processing and analyzing module is implemented by adopting an audio DSP chip design.

5. The vehicle conference mode omni-directional voice interaction system according to claim 4, wherein the wireless communication module is a Bluetooth module, a 3G/4G/5G module or a WIFI module.

6. The vehicle conference mode omni-directional voice interaction system according to claim 5, wherein the MCU is implemented by a 32-bit MCU RH850 chip design of Rysa.

7. The vehicle conference mode omni-directional voice interaction system of claim 6, wherein the SOC processor is implemented using a TI corporation J6PEVM577P processor design.

8. The vehicle conferencing mode omni-directional voice interactive system of claim 7, wherein the power amplifier is implemented using an enwispu car audio amplifier TDF8546 chip design.

9. The vehicle conference mode omni-directional voice interaction system according to claim 8, wherein the voice input switching module is implemented by a 74HC4052 chip of a 2-way four-out-of-one analog switch circuit.

10. The vehicle conference mode omni-directional voice interaction system according to claim 9, wherein the sound processing and analyzing module is implemented by using a TEF6638 chip design.