CN214256592U

CN214256592U - Voice interface device

Info

Publication number: CN214256592U
Application number: CN202023237491.1U
Authority: CN
Inventors: 甘欣辉; 樊璞; 宋亮; 姚连喜; 万韬; 郑前; 张万磊; 彭景法; 付元炳
Original assignee: Jiangsu Hezheng Special Equipment Co ltd
Current assignee: Jiangsu Hezheng Special Equipment Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-21
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a voice interface device, the device includes: the AD/DA conversion circuit is used for completing digital-to-analog/analog-to-digital conversion of analog voice; the comprehensive processing circuit is connected with the network management module and is used for receiving digital voice, carrying out IP processing on digital voice data and sending processed signals to the network management module or an AD/DA conversion circuit; the AD/DA conversion circuit sends the signals processed by the comprehensive processing circuit to a loudspeaker; and the network management module is connected with the Ethernet interface and sends out the processed voice data. The utility model discloses on current light-duty reconnaissance car voice device, increased a comprehensive processing circuit, can match multiple agreement, effectively acquire the information on the various voice device, when having solved voice device and having inserted certain wheeled light-duty reconnaissance car system, unsatisfied system to audio input output and the technical problem of synthetic design demand.

Description

Voice interface device

Technical Field

The utility model relates to a digital signal processing technology field, concretely relates to voice interface device.

Background

The wheel type light scout car usually needs to be provided with voice equipment during system design, but in the actual use process, the fact that the audio input/output and synthesis of the voice equipment can not meet the design requirements of the wheel type light scout car system on the voice equipment in the car can be found, or the recognition and acquisition precision of the voice equipment on the audio is low, and the design change needs to be carried out on a voice control module of the voice equipment.

The redesign and modification have a large engineering quantity for the special equipment of the reconnaissance car, a large amount of design modification approval processes and design verification work are needed, the time consumption is long, the design process is complex, the success is not high, and therefore corresponding improvement needs to be made on the basis of the installed equipment urgently, so that the reconnaissance car can adapt to the application environment and the use requirement of the reconnaissance car.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a voice interface device, which can be used for effectively accessing a voice device without changing the technical status of the original voice device, and can meet the application requirements of the system on the voice device.

The utility model relates to a voice interface device, the device includes:

the AD/DA conversion circuit is used for completing digital-to-analog/analog-to-digital conversion of analog voice;

the comprehensive processing circuit is connected with the network management module and is used for receiving digital voice, carrying out IP processing on digital voice data and sending processed signals to the network management module or an AD/DA conversion circuit;

the AD/DA conversion circuit sends the signals processed by the comprehensive processing circuit to a loudspeaker;

and the network management module is connected with the Ethernet interface and sends out the processed voice data.

Further, the AD/DA conversion circuit transmits the data stream to the integrated processing circuit through the I2S bus.

As a preferred embodiment of the present application, the apparatus is provided with a display control unit electrically connected to the integrated processing circuit, the display control unit being configured to display the audio data.

Furthermore, the device also comprises an audio amplifying circuit, and analog voice data are sent to the AD/DA converting circuit after passing through the audio amplifying circuit.

Furthermore, the device is also provided with a power supply control circuit.

Compared with the prior art, the utility model relates to a voice interface device has following beneficial effect:

the utility model discloses on current light-duty reconnaissance car speech equipment, an integrated processing circuit has been increased, can match multiple agreement, effectively acquire the information on the various speech equipment, when having solved speech equipment and having inserted certain type of wheeled light-duty reconnaissance car system, unsatisfied system is to the technical problem of audio input output and synthetic design demand, under the prerequisite that does not change former speech equipment technical state, realized that speech equipment effectively inserts the system and use, satisfied the application demand of system to speech equipment.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the use of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive work.

FIG. 1 is a flow chart of the present invention for processing digital voice by a speech interface device;

fig. 2 is a schematic diagram of the internal connection of a voice interface device according to the present invention;

fig. 3 and 4 are schematic external structural diagrams of a voice interface device according to the present invention;

in the figure, 1-amplifying circuit, 2-AD/DA conversion, 3-network management, 4-comprehensive processing circuit, 5-power control module, 6-audio amplifying module, 7-display control module and 8-voice control module.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

The utility model relates to a speech interface device, the device includes:

Furthermore, the device is also provided with a power supply control circuit.

The utility model discloses on current light-duty reconnaissance car speech equipment, increased a comprehensive processing circuit, can match multiple agreement, effectively acquire the information on the various speech equipment, new series microcontroller still supports ethernet, USB OTG and CAN2.0B peripheral hardware interface and works simultaneously.

The integrated processing circuit is based on an ARM9 processor and an ARM embedded controller, carries out IP processing on digital voice data, and delivers the digital voice data to a network management module for management, so that bidirectional data communication is realized. The ARM processor runs a VxWorks operating system, and simultaneously realizes the functions of LCD display, key control, state indication, network switching chip BCM53115M initialization configuration, Ethernet communication and the like.

The equipment mainly realizes the functions of voice data transmission, voice dialing and the like. The audio analog signal is subjected to background noise reduction through an audio noise reduction module, the processed single-ended signal is converted into a differential signal through a dual operational amplifier opa2227, coding and decoding are performed through an audio coding and decoding chip TLV320AIC14, the coded audio signal is subjected to A-rate coding through AT91RM9200, and the transmission bandwidth of the audio signal is reduced.

Example 2

The voice interface device realizes the functions through the following specific steps:

step 1: the design of a hardware platform is carried out: STM32 series ARM is used as an embedded digital signal processing platform, and an STM32 series microcontroller can be added with a full-speed USB interface. When the terminal product is connected with a USB device, the terminal product can be used as a USB host and a USB slave; an Ethernet interface with hardware supporting IEEE1588 Precision Time Protocol (PTP) is also added, and the CPU overhead can be reduced by using hardware to realize the protocol. The response speed of synchronous communication between the real-time application and the networking equipment is improved.

A brand new interconnection type series is a product integrating two CAN2.0b controllers in the first version of STM32 family, so that developers CAN develop gateway equipment capable of connecting two industrial standard CAN (controller area network) buses. In addition, the new series of microcontrollers also support the ethernet, USB OTG and can2.0b peripheral interfaces to operate at the same time, so that developers need only one chip to design a gateway device that integrates all these peripheral interfaces.

The power supply control circuit, the display circuit, the keyboard control circuit, the voice control circuit and the audio amplification circuit are combined to be used as a hardware platform for processing digital signals of the equipment;

step 2: the voice interface device communication interface is an Ethernet interface, and is converted into TTL data after passing through the level conversion circuit and then is accessed to the analog input/output port of the voice control module; the system access interface is a 2-path Ethernet interface, and is converted into TTL data through a power supply control circuit and an audio amplification circuit after being accessed into the voice interface device, and is accessed into the Ethernet interface of the voice control module;

and step 3: and (3) carrying out embedded software development: the voice control module performs data screening on the received data according to the voice interface device communication protocol judgment and the system end communication protocol, and performs elimination processing on the data which do not meet the communication protocol format requirement;

and 4, step 4: the voice control module carries out data distribution and format conversion on the data conforming to the communication protocol according to a mode specified by the protocol, and carries out IP processing on the digital voice data;

and 5: the data after IP processing is managed by a network management module to realize bidirectional data communication;

step 6: the data output by the voice control module is output to an output interface after passing through a display circuit, a keyboard control circuit and an audio amplification circuit, and is used for accessing voice equipment.

It should be noted that the signal processing methods used in the present application, including software implementation methods thereof, are all based on methods in the prior art, and are not important technical contents required to be protected in the present application.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A voice interface apparatus, the apparatus comprising:

2. The speech interface device of claim 1, wherein the AD/DA conversion circuit sends the data stream to the integrated processing circuit via an I2S bus.

3. The device of claim 1, wherein the device is configured with a display control unit, the display control unit is electrically connected to the integrated processing circuit, and the display control unit is configured to display audio data.

4. A speech interface device according to any one of claims 1 to 3, further comprising audio amplification circuitry, wherein the analog voice data is sent to the AD/DA conversion circuitry after passing through the audio amplification circuitry.

5. A speech interface device according to claim 4, further comprising a power control circuit.