CN210835652U

CN210835652U - Vehicle-mounted audio system

Info

Publication number: CN210835652U
Application number: CN201921797557.7U
Authority: CN
Inventors: 魏运锋; 龚瑞海
Original assignee: Shenzhen Skyworth Digital Technology Co Ltd
Current assignee: Shenzhen Skyworth Digital Technology Co Ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-23
Anticipated expiration: 2029-10-24

Abstract

The embodiment of the utility model discloses on-vehicle audio system. The in-vehicle audio system includes: the TBOX module comprises an audio input end, an audio output end, a first switch, a second switch and a wireless communication module, wherein the audio input end is connected with the second microphone, the first switch comprises a first channel and a second channel, the second switch comprises a first channel and a second channel, the audio input end is connected to the audio output end through the first channel of the first switch and the first channel of the second switch, and the audio input end is also connected to the audio output end through the second channel of the first switch, the wireless communication module and the second channel of the second switch; the central control machine comprises a first output end, a first receiving end and a second receiving end, the first receiving end is connected with the first microphone, the second receiving end is connected with the audio output end, and the central control machine is used for processing the first audio signal and/or the second audio signal to obtain an audio output signal. The embodiment of the utility model provides a reduced the interface resource who occupies well control computer.

Description

Vehicle-mounted audio system

Technical Field

The embodiment of the utility model provides a relate to the car technique, especially relate to an on-vehicle audio system.

Background

The internet of vehicles has become a development trend of the automobile industry, and the permeability of the internet is continuously improved. The intelligent traffic control system is one of important branches of intelligent traffic, is a typical application of the Internet of things in the fields of automobile industry and traffic systems, and belongs to a national-level emerging strategic industry of the Internet of things in a broad sense. The internet of vehicles technology is one of the main technologies of future automobiles parallel to new energy automobiles, automatic driving and light weight, and the existing internet of vehicles becomes an important fusion popularization and demonstration application platform in the industrial planning of the internet of things in China.

The T-Box serves as a vehicle-mounted intelligent terminal and a unique control unit of a vehicle body, which can be networked, and plays a role in monitoring and controlling the state of the vehicle body, and the maximum value of the T-Box is the connectivity with a network. The T-Box is mainly used for collecting vehicle-related information including position information, attitude information, vehicle state information (through connecting a CAN bus on the vehicle) and the like, and then transmitting the information to the TSP platform through wireless communication. Meanwhile, a user can use a mobile phone APP and a Web client to issue an instruction to the TBOX terminal through the TSP platform to control and operate the vehicle. The method mainly comprises the following steps: vehicle data acquisition, vehicle remote diagnosis, vehicle remote control, vehicle communication gateway, vehicle emergency rescue, vehicle anti-theft tracking, emergency call of accident, etc.

However, in the existing vehicle-mounted audio system, if the T-Box still needs to play other sounds in the call mode, a group of audio lines needs to be specially and additionally arranged to be connected to the central control computer, which not only occupies interface resources of the central control computer, but also increases the risk of signal interference caused by numerous harnesses on the vehicle body to the audio lines.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a vehicle-mounted audio system to the realization reduces the interface resource who occupies well accuse machine.

To this end, the embodiment of the utility model provides an on-vehicle audio system, this on-vehicle audio system includes:

a sound receiving module including a first microphone for converting a sound input by a user into a first audio signal and a second microphone for converting a sound input by a user into a second audio signal;

a TBOX module comprising an audio input, an audio output, a first switch, a second switch, and a wireless communication module, the audio input connected to the second microphone, the first switch comprising a first channel and a second channel, the second switch comprising a first channel and a second channel, the audio input connected to the audio output through the first channel of the first switch and the first channel of the second switch, the audio input further connected to the audio output through the second channel of the first switch, the wireless communication module, and the second channel of the second switch;

the central control machine comprises a first output end, a first receiving end and a second receiving end, the first receiving end is connected with the first microphone, the second receiving end is connected with the audio output end, and the central control machine is used for processing the first audio signal and/or the second audio signal to obtain an audio output signal;

and the sound playing module is connected with the first output end of the central control machine and is used for playing sound according to the audio output signal.

Furthermore, the central control computer comprises a noise elimination module, a processor, a DSP module and a power amplifier module, and the first microphone and the second microphone are connected to the sound playing module sequentially through the noise elimination module, the processor, the DSP module and the power amplifier module.

Further, the wireless communication module comprises a wireless network module and a signal processing module.

Preferably, the wireless network module is a 4G module.

Preferably, the sound playing module is a loudspeaker.

Further, the central control machine and the TBOX module are also connected through a CAN bus.

Furthermore, the TBOX module also comprises a microprocessor, and the microprocessor is connected with the central control machine through the CAN bus.

Preferably, the TBOX module further comprises a bluetooth module, and the bluetooth module is connected with the microprocessor.

Preferably, the TBOX module further comprises a GPS module, and the GPS module is connected to the microprocessor.

Further, the central control machine and the TBOX module are also connected through a USB bus.

The embodiment of the utility model provides a through TBOX module, this TBOX module includes audio input end, audio output end, first switch, second switch and wireless communication module, the audio input end with the second microphone is connected, first switch includes first passageway and second passageway, the second switch includes first passageway and second passageway, the audio input end passes through the first passageway of first switch and the first passageway of second switch are connected to the audio output end, the audio input end still passes through the second passageway of first switch, wireless communication module and second switch is connected to the audio output end has solved the problem that current on-vehicle audio system highly occupies to the interface resource of well control computer, has realized reducing the effect of occupying the interface resource of well control computer.

Drawings

Fig. 1 is a schematic structural diagram of a car audio system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are for purposes of illustration and are not to be construed as limitations of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, a first module may be termed a second module, and, similarly, a second module may be termed a first module, without departing from the scope of the present application. The first module and the second module are both modules, but they are not the same module. The terms "first", "second", etc. are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Example one

As shown in fig. 1, a vehicle audio system according to an embodiment of the present invention includes a sound receiving module 100, a TBOX module 200, a center control machine 300, and a sound playing module 400.

In this embodiment, the sound receiving module 100 includes a first microphone 110 and a second microphone 120, wherein the first microphone 110 is used for converting the sound input by the user into a first audio signal, and the second microphone 120 is used for converting the sound input by the user into a second audio signal; TBOX module 200 comprises audio input 201, audio output 202, first switch 210, second switch 220, and wireless communication module 230, said audio input 201 is connected to said second microphone 120, said first switch 210 comprises a first channel and a second channel, said second switch 220 comprises a first channel and a second channel, said audio input 201 is connected to said audio output 202 through said first channel of said first switch 210 and said first channel of said second switch 220, said audio input 201 is further connected to said audio output 202 through said second channel of said first switch 210, said second channel of wireless communication module 230 and said second switch 220; the central control machine 300 includes a first output end 303, a first receiving end 301 and a second receiving end 302, the first receiving end 301 is connected to the first microphone 110, the second receiving end 302 is connected to the audio output end 202, and the central control machine 300 is configured to process the first audio signal and/or the second audio signal to obtain an audio output signal; the sound playing module 400 is connected to the first output end 303 of the central control machine 300, and the sound playing module 400 is configured to play sound according to the audio output signal. The first switch 210 further includes a first output node 203 and a second output node 204, and the second switch 220 further includes a first input node 205 and a second input node 206. The input of the audio input terminal 201 is outputted from the first output node 203 as a first channel of the first switch 210, the input of the first input node 205 is outputted from the audio output terminal 202 as a first channel of the second switch 220, the input of the audio input terminal 201 is outputted from the second output node 204 as a second channel of the first switch 210, and the input of the second input node 206 is outputted from the audio output terminal 202 as a second channel of the second switch 220. The first switch 210 and the second switch 220 in this embodiment may be one or more of a triode, a MOS transistor, a thyristor, a single-pole double-throw switch, and a relay switch.

Further, the central control computer 300 includes a noise elimination module 310, a processor 320, a DSP module 330, and a power amplifier module 340, the first microphone 110 and the second microphone 120 are connected to the sound playing module 400 sequentially through the noise elimination module 310, the processor 320, the DSP module 330, and the power amplifier module 340, and the wireless communication module 230 includes a wireless network module 231 and a signal processing module 232. The central control machine 300 is further connected with the TBOX module 200 through a CAN bus, the TBOX module 200 further comprises a microprocessor 240, the microprocessor 240 is connected with the central control machine 300 through the CAN bus, the TBOX module 200 further comprises a Bluetooth module 250, the Bluetooth module 250 is connected with the microprocessor 240, the TBOX module 200 further comprises a GPS module 260, the GPS module 260 is connected with the microprocessor 240, and the central control machine 300 is further connected with the TBOX module 200 through a USB bus.

Illustratively, the TBOX module 200 is operated in a non-talk mode by default, and a user can implement operations such as voice control of the vehicle through the car audio system, in the TBOX module 200 in the non-talk mode, the microprocessor 240 of the TBOX module 200 controls the first switch 210 and the second switch 220 (not shown in a connection diagram between the processor 240 and the switches 210 and 220), so that the first channels of the first switch 210 and the second switch 220 are connected and the second channels of the first switch 210 and the second switch 220 are disconnected, that is, an audio signal input from the audio input terminal 201 can only be output from the audio output terminal 202 through the first output node 203 of the first switch 210 and the first input node 205 of the second switch 220. After a user speaks a voice instruction, the first microphone 110 and the second microphone 120 receive sound input by the user, the first microphone 110 converts the sound input by the user into a first audio signal and directly transmits the first audio signal to the first receiving end 301 of the central control computer 300, the second microphone 120 converts the sound input by the user into a second audio signal, and the second audio signal sequentially passes through the audio input end 201 of the TBOX module 200, the first channel of the first switch 210, the first channel of the second switch 220, and the audio output end 202 and is transmitted to the second receiving end 302 of the central control computer 300. After a first audio signal is received by a first receiving end 301 of the central control computer 300 and a second audio signal is received by a second receiving end 302, the first audio signal and the second audio signal are processed by a noise elimination module 310 of the central control computer 300 to eliminate noise and then transmitted to a processor 320, the processor 320 processes and analyzes the first audio signal and the second audio signal, controls other vehicle-mounted modules to execute operations required by a voice instruction of a user and generates an audio output signal to feed back the voice instruction of the user, the processor 320 transmits the audio output signal to a DSP module 330 through a NAVI channel, the DSP module 330 performs digital signal processing on the audio output signal and then transmits the processed audio output signal to a power amplification module 340 for amplification, and finally the processed audio output signal is output to the user through a sound playing module 400 for feedback.

Preferably, the sound playing module 400 is a speaker, and the positions of the first microphone 110 and the second microphone 120 are set relatively according to the phase location and the noise cancellation algorithm of the noise cancellation module 310, so that the noise cancellation module 310 can achieve better noise cancellation effect, and the user can also send out the first audio signal and the second audio signal through the bluetooth module 250 of the TBOX module 200 instead of through the first microphone 110 and the second microphone 120. In one possible embodiment, the user speaks a "turn on air conditioner" voice command, the processor 320 will control the air conditioner to turn on and generate an audio output signal to the speaker, and the speaker will play the "air conditioner turned on" sound.

Illustratively, when a user needs to talk over the car audio system, the microprocessor 240 of the TBOX module 200 controls the first switch 210 and the second switch 220 (not shown in the connection diagram between the processor 240 and the switches 210 and 220) such that the first channels of the first switch 210 and the second switch 220 are open and the second channels of the first switch 210 and the second switch 220 are open, that is, the audio signal input from the audio input 201 can only be output from the audio output 202 through the second output node 204 of the first switch 210 and the second input node 206 of the second switch 220, and the TBOX module 200 is in a talk mode. When a user speaks a piece of voice, the first microphone 110 and the second microphone 120 receive the voice input by the user, the first microphone 110 converts the voice input by the user into a first audio signal and directly transmits the first audio signal to the first receiving terminal 301 of the central controller 300, the second microphone 120 converts the voice input by the user into a second audio signal and transmits the second audio signal to the wireless network module 231 in the wireless communication module 230 through the audio input terminal 201 of the TBOX module 200 and the second channel of the first switch 210 in sequence, as preferable, the wireless network module 231 is a 4G module, the wireless network module 231 semantically analyzes the second audio signal of the user and then transmits the call information content of the user to another mobile phone through an RF mode, the other mobile phone returns the call information content to the wireless network module through the same mode, the wireless network module 231 analyzes the returned call information content to obtain the second audio signal, and transmits the second audio signal to the second receiving end 302 of the central controller 300 through the signal processing module 232 in the wireless communication module 230, the second channel of the second switch 220, and the audio output end 202 in sequence. After the second audio signal is received by the second receiving end 302 of the central control machine 300, the second audio signal is processed by the noise elimination module 310 of the central control machine 300 and then transmitted to the processor 320, the processor 320 processes the second audio signal and then generates an audio output signal, the processor 320 transmits the audio output signal to the DSP module 330 through the NAVI channel, the DSP module 330 performs digital signal processing on the audio output signal and then transmits the audio output signal to the power amplification module 340 for amplification, and finally the audio output signal is output to the user through the sound playing module 400 to realize a call.

In a possible implementation manner, when a user needs to initiate an emergency call, the user may control the central control machine 300 to make the emergency call, and the central control machine 300 controls the microprocessor 240 to enable the TBOX module 200 to enter a talk mode through the CAN bus or the USB bus, and controls the wireless communication module 230 to dial the emergency call. Optionally, when a user needs to initiate vehicle roadside assistance, the user may control the central control machine 300 to perform vehicle roadside assistance, the central control machine 300 controls the microprocessor 240 through the CAN bus or the USB bus to enable the TBOX module 200 to enter a call mode, controls the wireless communication module 230 to call the rescue center, and controls the GPS module 260 to send the real-time location of the user to the rescue center through the wireless communication module 230. In addition, the user CAN also input any number to dial through the central control unit 300, and the central control unit 300 controls the microprocessor 240 to enable the TBOX module 200 to enter a call mode through the CAN bus or the USB bus, and controls the wireless communication module 230 to dial the number input by the user.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. An in-vehicle audio system, comprising:

2. The car audio system of claim 1, wherein the central control unit comprises a noise elimination module, a processor, a DSP module, and a power amplifier module, and the first microphone and the second microphone are connected to the sound playing module sequentially through the noise elimination module, the processor, the DSP module, and the power amplifier module.

3. The car audio system of claim 1, wherein the wireless communication module comprises a wireless network module and a signal processing module.

4. The car audio system of claim 3, wherein the wireless network module is a 4G module.

5. The car audio system of claim 1, wherein the sound playing module is a speaker.

6. The car audio system of claim 1, wherein the central control and TBOX modules are further connected by a CAN bus.

7. The car audio system of claim 6, wherein the TBOX module further comprises a microprocessor connected to the central control machine via the CAN bus.

8. The car audio system of claim 7, wherein the TBOX module further comprises a Bluetooth module, the Bluetooth module being coupled to the microprocessor.

9. The car audio system of claim 7, wherein the TBOX module further comprises a GPS module, the GPS module coupled to the microprocessor.

10. The car audio system of claim 1, wherein the central control unit and the TBOX module are further connected by a USB bus.