CN215933189U - Car as a house control pronunciation gateway device - Google Patents

Abstract

The utility model discloses a recreational vehicle control voice gateway device, belonging to the technical field of data processing devices and solving the problems that the recreational vehicle multimedia equipment in the prior art can not obtain a playing sound source, so that echo cancellation can not be carried out and the system voice recognition accuracy is low, the input end of the TLV chip is connected with a microphone input end and a plurality of audio input ends, the TLV chip comprises a multi-channel sound mixing module connected with the plurality of audio input ends, the output end of the multi-channel sound mixing module is connected with the input end of a first gain amplification module, the output end of the first gain amplification module is respectively connected with a loudspeaker, a first audio output end and the input end of a first AD converter, the output end of the first AD converter is connected with the input end of a noise reduction module, the output end of the noise reduction module is connected with the input end of an MCU, and the output end of the MCU is connected with a second audio output end. The utility model can uniformly control multimedia and arbitrarily expand, and has the function of noise reduction.

Description

Car as a house control pronunciation gateway device

Technical Field

The utility model belongs to the technical field of data processing devices, and particularly relates to a voice gateway device for controlling a motor home.

Background

The motor home, also called as a home on a wheel, has two functions of a house and a vehicle, and is a vehicle integrating clothes and food accommodation, although the motor home has great advantages in performance, the motor home is not popularized to a high degree because the price is high and the utilization rate is low for ordinary families. But for vacation and leisure and the above-mentioned problems, caravans are really a very suitable solution. Through the sharing of the motor home, most problems in traveling are solved, and the utilization rate of one motor home is improved.

Multimedia equipment of a caravan room part comprises a television, a control screen, a multimedia entertainment flat plate and the like, and all the multimedia equipment plays sound through respective power amplifiers at present.

The defects of the prior art and the reasons for the defects are mainly as follows:

a) the broadcast sound is dispersed, and the user can not notice useful broadcast information easily

b) The playing tone quality is different according to different tone qualities caused by different sound equipment of manufacturers

c) The echo cancellation can not be carried out due to the fact that the playing sound source can not be obtained, and the accuracy rate of system voice recognition is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to:

the recreational vehicle control voice gateway device is provided for solving the problems that the recreational vehicle multimedia equipment in the prior art cannot acquire a playing sound source, so that echo cancellation cannot be carried out, and the system voice recognition accuracy is low.

The technical scheme adopted by the utility model is as follows:

the utility model provides a car as a house control pronunciation gateway device, includes the TLV chip, the input of TLV chip is connected with microphone input end and a plurality of audio input end, and the TLV chip includes the multichannel audio mixing module of being connected with a plurality of audio input ends, and the output of multichannel audio mixing module is connected with the input of first gain amplification module, and the output of first gain amplification module is connected with loudspeaker, first audio output and the input of first AD converter respectively, the output of first AD converter is connected with the input of the module of making an uproar that falls, the output of the module of making an uproar that falls is connected with MCU's input, MCU's output is connected with second audio output.

Furthermore, the TLV chip further includes a second gain amplification module connected to the input end of the microphone, an output end of the second gain amplification module is connected to an input end of a second AD converter, and an output end of the second AD converter is connected to an input end of the MCU.

Furthermore, the output end of the first gain amplification module is also connected with the input end of a third AD converter, and the output end of the third AD converter is connected with the input end of the MCU.

Furthermore, the audio input end is provided with at least five input ports.

Further, the MCU comprises a noise reduction algorithm module and a configuration module.

In summary, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. according to the utility model, the signal output to the power amplifier is simultaneously output to the noise reduction module through the noise reduction module after AD conversion, and is output to the MCU after processing such as echo cancellation, so that echo cancellation is realized, the car as a house multimedia equipment can better recognize effective audio, and the voice recognition accuracy is improved.

2. The utility model has the advantages of unlimited multimedia input quantity, random expansion, unified control, strong integrity and unified playing tone quality, and enables users to more easily obtain useful broadcast information.

Drawings

Fig. 1 is a block diagram of a voice gateway apparatus according to the present invention.

The labels in the figure are: the voice-frequency-based audio-frequency mixing device comprises a 1-TLV chip, a 2-microphone input end, a 3-audio input end, a 4-multichannel sound mixing module, a 5-first gain amplification module, a 6-loudspeaker, a 7-first audio output end, a 8-first AD converter, a 9-noise reduction module, a 10-MCU, a 11-second audio output end, a 12-second gain amplification module, a 13-second AD converter, a 14-third AD converter, a 15-noise reduction algorithm module and a 16-configuration module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Example 1

The utility model provides a car as a house control pronunciation gateway device, including TLV chip 1, TLV chip 1's input is connected with microphone input 2 and a plurality of audio input end 3, TLV chip 1 includes the multichannel audio mixing module 4 of being connected with a plurality of audio input end 3, the output of multichannel audio mixing module 4 is connected with the input of first gain amplification module 5, the output of first gain amplification module 5 is connected with loudspeaker 6 respectively, first audio output 7 and first AD converter 8's input, first AD converter 8's output is connected with the input of module 9 of making an uproar, the output of module 9 of making an uproar is connected with MCU 10's input, MCU 10's output is connected with second audio output end 11. The signal output to the power amplifier is output to the noise reduction module 9 through the noise reduction module 9 after AD conversion, and is output to the MCU10 after echo cancellation and other processing, so that echo cancellation is realized, effective audio can be better recognized by the recreational vehicle multimedia device, and the accuracy of voice recognition is improved.

Example 2

On the basis of embodiment 1, the TLV chip 1 further includes a second gain amplifying module 12 connected to the microphone input terminal 2, an output terminal of the second gain amplifying module 12 is connected to an input terminal of a second AD converter 13, and an output terminal of the second AD converter is connected to an input terminal of the MCU 10.

Example 3

On the basis of embodiment 1, the output end of the first gain amplifying module 5 is further connected to the input end of a third AD converter 14, and the output end of the third AD converter is connected to the input end of the MCU 10.

Example 4

On the basis of embodiment 1, the audio input terminal 3 is provided with at least five input ports, and preferably, the audio input terminal 3 is provided with five input ports, which can be expanded arbitrarily.

Example 5

On the basis of embodiment 1, the MCU10 includes a noise reduction algorithm module 15 and a configuration module 16.

The working process of the utility model is as follows:

the input of the voice gateway device comprises microphone input and five-channel audio input, the microphone input picks up an ambient sound wave signal, the signal is subjected to gain amplification and AD conversion (analog-to-digital conversion) through a TLV chip 1 and then is output to the MCU10 through an I2S audio bus.

The five paths of audio input collect audio source signals of multimedia in the recreational vehicle system, the audio source signals are amplified in gain and then output to a power amplifier (a loudspeaker 6), and the other path of audio input is output to the MCU10 through an I2S audio bus and microphone input signals after AD conversion. The signal output to the power amplifier is simultaneously output to the noise reduction module 9 after AD conversion, output to the MCU10 after echo cancellation and other processing, and finally output to the voice recognition module by the MCU 10.

The electronic devices of the utility model can be selected from the following types:

TLV audio encoding and decoding chip: TLV320AIC3106

An audio encoder: CS5344

The voice processing module: CYM112-2M

A noise reduction module: CYM112-2M

MCU：STM32F413RGT6

The audio power amplifier: TPA3138D2PWPR

ADC：CS5344

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A recreational vehicle control voice gateway device is characterized by comprising a TLV chip (1), the input end of the TLV chip (1) is connected with a microphone input end (2) and a plurality of audio input ends (3), the TLV chip (1) comprises a multi-channel sound mixing module (4) connected with the audio input ends (3), the output end of the multi-channel sound mixing module (4) is connected with the input end of a first gain amplification module (5), the output end of the first gain amplification module (5) is respectively connected with a loudspeaker (6), a first audio output end (7) and the input end of a first AD converter (8), the output end of the first AD converter (8) is connected with the input end of a noise reduction module (9), the output end of the noise reduction module (9) is connected with the input end of the MCU (10), the output end of the MCU (10) is connected with a second audio output end (11).

2. The recreational vehicle control voice gateway device according to claim 1, wherein the TLV chip (1) further comprises a second gain amplification module (12) connected to the microphone input terminal (2), an output terminal of the second gain amplification module (12) is connected to an input terminal of a second AD converter (13), and an output terminal of the second AD converter (13) is connected to an input terminal of the MCU (10).

3. The recreational vehicle control voice gateway device according to claim 1, wherein an output end of the first gain amplification module (5) is further connected with an input end of a third AD converter (14), and an output end of the third AD converter (14) is connected with an input end of the MCU (10).

4. The recreational vehicle control voice gateway device according to claim 1, wherein the audio input terminal (3) is provided with at least five input ports.

5. The recreational vehicle control voice gateway device according to claim 1, wherein the MCU (10) comprises a noise reduction algorithm module (15) and a configuration module (16).

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