CN209395744U - Car audio integration device - Google Patents

Abstract

The application provides a vehicle audio integration device, which is connected between a vehicle controller and an audio player. The vehicle audio integration device includes a signal receiving circuit and a signal processing circuit. The signal receiving circuit has a signal input end, which is coupled to the vehicle controller and is used for receiving various digital audio signals from the vehicle controller. The signal processing circuit is coupled to the signal receiving circuit and the audio player. After being supplied with power, the signal processing circuit can identify and receive digital audio source signals from the signal receiving circuit, and perform mixing processing on each digital audio source signal. Subsequently, the mixed digital audio source signals are transmitted to the audio player for playback, and the signal processing circuit can calculate and adjust the volume of each digital audio source signal to achieve the effect of synchronously playing multiple digital audio source signals.

Description

Car audio integration device

technical field

The present application relates to an audio integration technology, in particular to a vehicle audio integration device.

Background technique

Generally speaking, today's vehicles usually have built-in audio players for playing music signals transmitted by multimedia devices. And the driver installs a navigation device in the car for the convenience of driving. Among them, the current vehicle system electrically couples the aforementioned navigation device, vehicle computer and audio player through Media Oriented Systems Transport (MOST).

However, the above-mentioned vehicle-mounted system has the defect of being unable to perform sound mixing and playback effectively. For example, the video and audio source signal of the multimedia device is continuously played through the audio player, while the navigation audio source signal of the navigation device is played intermittently through the audio player. When the navigation device and the multimedia device synchronously play the audio source signal through the audio player, because the well-known audio player cannot judge and adjust the playback volume of various audio source signals, the audio player synchronously plays the same volume of the navigation audio source signal and audio-visual audio source signal, it will cause the signal of one audio source to be overwritten by the other. Therefore, the driver cannot effectively listen to the audio signal played by the navigation device or the multimedia device, and there is a need for improvement.

Utility model content

In order to solve the above problems, the application provides a car audio integration device, which can decode and process various digital audio source signals, and transmit each digital audio source signal to an audio player for playback, and the signal processing circuit can process each digital audio source signal. The audio signal calculation adjusts the playing volume to achieve the effect of synchronously playing multiple digital audio signals.

In order to achieve the above purpose, the present application provides a vehicle audio integration device, which is connected between a vehicle controller and an audio player, and the vehicle audio integration device includes a signal receiving circuit and a signal processing circuit. The signal receiving circuit has a signal input terminal, the signal input terminal is coupled to the vehicle controller, and is used to receive various digital audio source signals from the vehicle controller; the signal processing circuit is coupled to the signal receiving circuit, and after the signal processing circuit is powered, It can identify and receive digital audio source signals from the signal receiving circuit, and perform mixing processing on each digital audio source signal. The signal processing circuit has a signal output terminal, and the signal output terminal is coupled to the audio player for mixing the audio after processing. Each digital audio source signal is transmitted to the audio player for playback, and the signal processing circuit can calculate and adjust the volume of each digital audio source signal.

In one of the embodiments, the signal processing circuit includes a sound mixing unit, a signal decoding unit and a signal calculation unit, the sound mixing unit receives the digital audio signal from the signal receiving circuit for mixing processing, and then decodes the signal The unit performs decoding processing, and the signal operation unit can perform calculations on the mixed digital audio source signals to adjust the playing volume.

In one of the embodiments, the signal processing circuit further includes a control unit and a signal conversion unit, the control unit is coupled to the signal conversion unit and the mixing unit, and is used to receive a switching command from the vehicle controller, and the signal conversion unit switches according to the The instruction converts the digital audio source signals from the signal receiving circuit into multiple analog audio source signals, and the signal conversion unit transmits the analog audio source signals to the mixing unit for mixing processing.

In one of the embodiments, the signal output end is a plurality of signal output ports, and the audio player is connected to one of the signal output ports by wire, and plays the digital audio source signals or the analog audio source signals together.

In one of the embodiments, the signal output port is a plurality of signal output ports, and there are a plurality of audio players, and each signal output port is respectively connected to the audio player by cable to individually play each digital audio source signal or each analog audio source signal.

In one of the embodiments, the signal input end is a digital signal connection slot for detachably installing a quick connector, the quick connector has an audio source line connected to the vehicle controller, so that the signal receiving circuit is wired On-board controller.

In one of the embodiments, the signal input end is a plurality of digital signal ports, and the digital signal ports are respectively wired to the vehicle controller through multiple sets of audio source lines.

In one of the embodiments, it also includes a casing, the signal receiving circuit and the signal processing circuit are electrically connected in the casing, the signal input end is located on one side of the casing, and the signal output end is located on the other side of the casing .

In one of the embodiments, it further includes an input power supply, which is coupled to the signal processing circuit and used to provide a working power required for transmission of the signal processing circuit.

Therefore, the signal processing circuit of the present application can identify and receive digital audio source signals from the signal receiving circuit, and perform mixing and decoding processing on each digital audio source signal, so as to transmit each digital audio source signal to an audio player for playback. And the signal processing circuit can adjust the volume of each digital audio source signal played synchronously, so as to achieve the effect of synchronously playing multiple digital audio source signals.

Description of drawings

Fig. 1 is a schematic diagram of the application status of the present application.

FIG. 2 is a schematic diagram of the appearance of the first embodiment of the present application.

FIG. 3 is a schematic view of the appearance of the first embodiment of the present application from another perspective.

FIG. 4 is a functional block diagram of the first embodiment of the present application.

FIG. 5 is a schematic diagram of the appearance of the second embodiment of the present application.

FIG. 6 is a functional block diagram of the second embodiment of the present application.

Explanation of reference numbers

Vehicle controller 1

audio player 2

navigation device 3

Multimedia device 4

Media Oriented Delivery System 5

Car audio integration device 100

Shell 10

first side 11

second side 12

Signal receiving circuit 20

Signal input terminal 21

Digital signal connection slot 211

Digital signal port 212

Signal processing circuit 30

Mixing unit 31

Signal decoding unit 32

Signal operation unit 33

control unit 34

Signal Conversion Unit 35

Signal output terminal 36

Signal output port 361

Input power 40

Detailed ways

In order to illustrate the central idea of the present application in the column of the content of the above-mentioned utility model, it is expressed through specific embodiments. It should be noted in advance that various objects in the embodiments are drawn in proportions suitable for illustration, not in proportions of actual components.

Referring to FIG. 1 to FIG. 6 , the present application provides a car audio integration device 100 . The car audio integration device 100 is connected between a car controller 1 and an audio player 2 . The vehicle audio integration device 100 mainly receives various digital audio signals from the vehicle controller 1 for integration and processing, and finally transmits the integrated digital audio signals to the audio player 2 for playback. In this embodiment, the on-board controller 1 is a trip computer. The audio player 2 is a car audio host. Wherein, the vehicle controller 1 is also coupled to a navigation device 3 and a multimedia device 4 . Various digital audio signals sent by the navigation device 3 and the multimedia device 4 are transmitted to the car audio integration device 100 for processing.

The car audio integration device 100 includes a casing 10 , a signal receiving circuit 20 , a signal processing circuit 30 and an input power source 40 . Please refer to FIG. 2 to FIG. 4 , which is the first embodiment of the present application. Please cooperate with FIG. 5 and FIG. 6, which is the second embodiment of the present application.

The overall appearance of the casing 10 is substantially rectangular. The signal receiving circuit 20 and the signal processing circuit 30 are electrically coupled inside the casing 10 . The housing 10 has a first side 11 and a second side 12 away from each other.

The signal receiving circuit 20 has a signal input terminal 21 , and the signal input terminal 21 is coupled to the vehicle controller 1 , the navigation device 3 and the multimedia device 4 . The signal receiving circuit 20 is used for receiving various digital audio signals from the vehicle controller 1 , the navigation device 3 and the multimedia device 4 . Please refer to FIG. 2 and FIG. 4, in the first embodiment of the present application, the signal input end 21 is a digital signal connection groove 211, which is recessed on the first side 11 of the housing 10, and the digital signal connection groove 211 is used. The quick connector is installed detachably. The quick connector has a sound source line connected to the vehicle controller 1 . Wherein, the vehicle-mounted controller 1 is equipped with a media-oriented transmission system 5, which is used to receive digital audio signals from the navigation device 3 and the multimedia device 4, so that the media-oriented transmission system 5 of the vehicle-mounted controller 1 transmits the received digital audio signals synchronously. To the signal receiving circuit 20. Or as shown in FIG. 5 and FIG. 6, in the second embodiment of the present application, the signal input end 21 is a plurality of digital signal ports 212, which protrude and are arranged side by side on the first side 11 of the housing 10, and the digital signal ports 212 can individually connect the vehicle controller 1 , the navigation device 3 and the multimedia device 4 via independent audio source lines, so as to achieve the effect of independently transmitting digital audio source signals.

The signal processing circuit 30 is coupled to the signal receiving circuit 20. After being powered, the signal processing circuit 30 can identify and receive digital audio signals from the signal receiving circuit 20, and perform mixing processing on each digital audio signal. In this embodiment, the input power source 40 is coupled to the signal processing circuit 30 for providing a working power required by the signal processing circuit 30 to enable the signal processing circuit 30 to operate. Wherein, the signal processing circuit 30 includes a sound mixing unit 31 , a signal decoding unit 32 and a signal computing unit 33 . The mixing unit 31 receives the digital audio signal from the signal receiving circuit 20 for mixing processing, and then the signal decoding unit 32 performs decoding processing. The signal calculation unit 33 can perform calculations on the mixed digital audio source signals to adjust the playing volume. For example, when the navigation digital audio signal of the navigation device 3 and the audio-visual digital audio signal of the multimedia device 4 are synchronously transmitted to the vehicle audio integration device 100, the signal calculation unit 33 can judge and adjust the navigation digital audio signal and the audio-visual digital audio signal The playback volume of the signal mixing output makes the navigation digital audio signal and the audio-visual digital audio signal not overlap each other. Therefore, the user can listen to the effects of the navigation digital audio signal and the audio-visual digital audio signal at the same time, achieving the purpose of synchronously mixing and playing multiple digital audio signals.

In addition, the signal processing circuit 30 further includes a control unit 34 and a signal conversion unit 35 , the control unit 34 is coupled to the audio mixing unit 31 and the signal conversion unit 35 . According to the type of signal received by the audio player 2 , the user can input a switching command to the vehicle controller 1 through the personalized user interface installed in the vehicle, and the control unit 34 receives the switching command from the vehicle controller 1 . The signal conversion unit 35 individually converts the digital audio source signals into various analog audio source signals according to the switching instruction, and then transmits the analog audio source signals to the audio mixing unit 31 for audio mixing processing. Then, through the signal decoding unit 32 and the signal calculation unit 33, the mixed analog audio source signal is respectively decoded and processed, so that the analog audio source signal can be mixed and played by the audio player 2, providing user control switching The effect of playing an analog audio signal or a digital audio signal.

Please refer to FIG. 3 to FIG. 6, the signal processing circuit 30 has a signal output terminal 36, the signal output terminal 36 is coupled to the audio player 2, and is used for mixing and decoding each digital audio source signal or each analog audio source The signal is transmitted to the audio player 2 for playback. In this embodiment, the signal output port 36 is a plurality of signal output ports 361, which protrude and are arranged side by side on the second side 12 of the casing 10, and each signal output port 361 is used for processing each digital audio source signal or each The analog audio source signal is transmitted to the common audio player 2 for synchronous playback. But the present application is not limited thereto. When there are multiple audio players 2, each signal output port 361 can be wired to each audio player 2 respectively, so that each audio player 2 can individually play each digital audio source signal or each analog audio source signal. the goal of. In addition, each digital audio source signal or each analog audio source signal can display the playback volume through the personalized user interface, allowing the user to individually set the volume transmitted by the signal processing circuit 30, so as to achieve the effect of personalized adjustment of the playback volume. Moreover, the personalized user interface can also provide the purpose of switching each digital audio source signal or each analog audio source signal to be played by a single or multiple audio players 2, so as to provide multi-player.

Therefore, the present application has the following advantages:

1. The signal processing circuit 30 of this application can identify and receive the digital audio source signal from the signal receiving circuit 20, and decode each digital audio source signal, and transmit the decoded digital audio source signal to the audio playback device 2 for playback. Moreover, the signal processing circuit 30 can calculate and adjust the volume of each digital audio source signal to achieve the effect of synchronously playing multiple digital audio source signals.

2. Furthermore, when there are multiple audio players 2, each signal output port 361 can be wired to each audio player 2 to send out each digital audio source signal, so that each audio player 2 can individually play each digital audio source signal .

3. In addition, the signal conversion unit 35 can individually convert the digital audio source signal into various analog audio source signals for mixing and playing according to the switching command input by the user, providing the user with the effect of controlling the switching of the analog audio source signal or the digital audio source signal for playback .

4. Each digital audio source signal or each analog audio source signal can display the playback volume through the personalized user interface, and then provide the user with an individual setting of the volume transmitted by the signal processing circuit 30, so as to achieve the effect of personalized adjustment of the playback volume. Moreover, the personalized user interface can also provide the purpose of switching each digital audio source signal or each analog audio source signal to be played by a single or multiple audio players 2, so as to provide multi-player.

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present application, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of protection of the patent application should be based on the appended claims.

Claims (9)

1. a kind of onboard audio integrating apparatus, which is characterized in that be connected between a Vehicle Controller and an audio player, institute Stating onboard audio integrating apparatus includes:

One signal reception circuit has a signal input end, and the signal input end is coupled to the Vehicle Controller, for connecing Receive a variety of digital tone source signals from the Vehicle Controller；And

One signal processing circuit, is coupled to the signal reception circuit, and the signal processing circuit after power up, can be recognized and be connect The digital tone source signal from the signal reception circuit is received, and stereo process is carried out to each digital tone source signal, it is described Signal processing circuit has a signal output end, and the signal output end is coupled to the audio player, and being used for will be at audio mixing Each digital tone source signal after reason is transmitted to the audio player and plays out, and the signal processing circuit can be to each The digital tone source signal operation adjusts played volume.

2. onboard audio integrating apparatus as described in claim 1, which is characterized in that the signal processing circuit includes an audio mixing Unit, a signal decoding unit and a signal arithmetic element, the downmixing unit receive the number from the signal reception circuit Word sound source signal carries out stereo process, then carries out decoding processing by the signal decoding unit, and the signal arithmetic element can be right Each digital tone source signal after stereo process carries out the volume that operation adjustment is played.

3. onboard audio integrating apparatus as claimed in claim 2, which is characterized in that the signal processing circuit further includes a control Unit processed and a signal conversion unit, described control unit couples the signal conversion unit and the downmixing unit, to connect A switching command of the Vehicle Controller is received, the signal conversion unit will connect according to the switching command from the signal The digital tone source signal for receiving circuit is converted into individually multiple analog sound source signal, and the signal conversion unit is again by a variety of moulds Quasi- sound source signal is transmitted to the downmixing unit and carries out stereo process.

4. onboard audio integrating apparatus as claimed in claim 3, which is characterized in that the signal output end is that multiple signals are defeated Exit port, a audio player wired connection wherein signal output end mouth, and each number that broadcasting is issued jointly Sound source signal or each simulation sound source signal.

5. onboard audio integrating apparatus as claimed in claim 3, which is characterized in that the signal output end is that multiple signals are defeated Exit port, the audio player are multiple, each signal output end mouth difference the multiple audio player of wired connection To play each digital tone source signal or each simulation sound source signal individually.

6. onboard audio integrating apparatus as described in claim 4 or 5, which is characterized in that the signal input end is a number Signal link slot for detachable type installs a quick coupling, and the quick coupling, which has, connects the Vehicle Controller One source of sound route, so that Vehicle Controller described in the signal reception circuit wired connection.

7. onboard audio integrating apparatus as described in claim 4 or 5, which is characterized in that the signal input end is multiple numbers Word signal port, the multiple digital signal port pass through Vehicle Controller described in multiple groups source of sound route wired connection respectively.

8. onboard audio integrating apparatus as described in claim 1, which is characterized in that further include a shell, the signal reception Circuit and the signal processing circuit are electrically connected in the shell, and the signal input end is located at the side of the shell, And the signal output end is located at the other side of the shell.

9. onboard audio integrating apparatus as described in claim 1, which is characterized in that further include an input power, the input Signal processing circuit described in supply coupling, for a working power needed for providing the transmission signal processing circuit.