CN211209810U - Novel visual intercom terminal and system - Google Patents

Abstract

The utility model provides a novel visual intercom terminal, include: the system comprises an ARM processor, a microphone array module, a camera, a power amplifier and loudspeaker module and keys; the ARM processor is respectively connected with the microphone array module, the camera, the power amplifier and loudspeaker module and the keys; the ARM processor is connected with external alarm input equipment; the microphone array module comprises an ATH8819 core chip and a microphone array; the ATH8819 core chip is connected with the microphone array, and the ATH8819 core chip is connected with the ARM processor; the utility model discloses an increase ATH8819 core chip and eliminate the echo and noise suppression to solve the visual terminal of talkbacking among the prior art when application microphone array module and power amplifier module carry out long-range intercommunication, owing to produce the echo or talkback both sides and take place to type very serious technical problem when the distance is close, thereby improve the tone quality of visual terminal of talkbacking when talkbacking, further improve the practicality at visual terminal of talkbacking.

Description

Novel visual intercom terminal and system

Technical Field

The utility model relates to an intelligent communication equipment field especially relates to a novel visual intercom terminal and system.

Background

The help seeking terminal is also called a visual talkback terminal; has the function of one-key alarm or help seeking. The visual intercom terminal is usually designed by adopting one key or two keys and is connected with external alarm input equipment to realize the function of one-key alarm; in addition, the visual intercom terminal is also provided with a camera for checking the field situation in real time and helping security personnel to remotely know the field situation; the microphone array module and the power amplifier module are arranged and used for realizing the remote talkback function; and so on.

However, when the visual intercom terminal in the prior art uses the microphone array module and the power amplifier module to perform remote intercom, due to the fact that echo is generated or howling is generated when the distance between two parties of the intercom is short, the tone quality during the intercom is poor, and the use of the intercom function is seriously affected.

With the development of technology, a DSP unit ATH8819 core chip using a professional acoustic technology is newly developed in the market at present, and ATH8819 can provide a suitable echo cancellation and noise suppression scheme, and it has a highly integrated single chip, very low power consumption (30-35 mW), powerful AEC (acoustic echo cancellation) (60dB), excellent full-duplex performance, differential input/output reduces Radio Frequency (RF) interference, improves immunity to interference, Dynamic Range Control (DRC) improves intelligibility of sound, side tone cancellation 25-35 dB, cancellation acoustic echo tail length coverage: 64-120 ms, small size. The design working process comprises the following steps: pickup, amplification, anti-aliasing filtering, analog/digital conversion and DSP processing, and the chip adopts an AMBIN voice processing algorithm, so that the quality of voice signals is improved, the interference of background noise in the voice pickup process is reduced, and the device has the advantages of long pickup distance, good pickup effect and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel visual terminal and system of talkbacking eliminates the echo and noise suppression through increasing ATH8819 core chip to solve the visual terminal of talkbacking among the prior art when utilizing microphone array module and power amplifier module to carry out long-range intercommunication, owing to produce the echo or talkback both sides and take place to type very serious technical problem when the distance is close, thereby improve the tone quality of visual terminal of talkbacking when talkbacking, further improve the practicality of visual terminal of talkbacking.

In order to solve the technical problem, an embodiment of the utility model provides a novel visual intercom terminal, include: the system comprises an ARM processor, a microphone array module, a camera, a power amplifier and loudspeaker module and keys;

the ARM processor is respectively connected with the microphone array module, the camera, the power amplifier and loudspeaker module and the keys; the ARM processor is connected with external alarm input equipment;

the microphone array module comprises an ATH8819 core chip and a microphone array; the ATH8819 core chip is connected with the microphone array, and the ATH8819 core chip is connected with the ARM processor.

As a preferred scheme, the novel visual intercom terminal further comprises a voice recognition module, and the voice recognition module is connected with the ARM processor.

As a preferred scheme, the novel visual intercom terminal further comprises a breathing lamp, and the breathing lamp is connected with the ARM processor.

As the preferred scheme, the power amplifier and loudspeaker module includes audio frequency decoding broadcast chip, digital power amplifier module and monitoring loudspeaker, audio frequency decoding broadcast chip respectively with digital power amplifier module is connected with monitoring loudspeaker.

As a preferred scheme, the digital power amplifier module is a 10W high-efficiency digital power amplifier module.

As a preferred scheme, the monitoring horn is a 3W monitoring horn.

Preferably, the camera is a 200 ten thousand high-speed camera.

The embodiment of the utility model provides a novel visual intercom system is still provided, include: the novel visual intercom terminal, the switch and the visual network broadcast intercom host are any one of the above;

the switch is respectively in communication connection with the novel visual intercom terminal and the visual network broadcast intercom host.

As the preferred scheme, novel visual intercom system still includes: an AI server; the AI server is communicatively coupled to the switch.

As the preferred scheme, novel visual intercom system still includes: an intelligent paging station; the intelligent paging station is in communication connection with the switch.

Compared with the prior art, the embodiment of the utility model provides a have following beneficial effect:

1. the utility model discloses an increase ATH8819 core chip and eliminate the echo and noise suppression to solve the visual terminal of talkbacking among the prior art when application microphone array module and power amplifier module carry out long-range intercommunication, owing to produce the echo or talkback both sides and take place to type very serious technical problem when the distance is close, thereby improve the tone quality of visual terminal of talkbacking when talkbacking, further improve the practicality at visual terminal of talkbacking.

2. The speech recognition module is added to realize the recognition control of the speech, and the practicability is improved.

3. The working state of the terminal can be displayed by adding the breathing lamp, and the user experience is improved.

4. The intelligent control is realized by connecting the switch with the external visual network broadcast talkback host, the AI server, the intelligent paging station and other equipment.

The non-involved parts of the terminal are the same as or can be implemented using prior art.

Drawings

FIG. 1: the hardware structure of the novel visual intercom terminal is shown in the schematic diagram;

FIG. 2: is a schematic diagram of the appearance structure of the novel visual intercom terminal of the utility model;

wherein the reference numbers of the drawings in the specification are as follows:

1. a power amplifier and horn module; 2. a camera; 3. pressing a key; 4. a microphone array 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 efforts belong to the protection scope of the present invention.

Referring to fig. 1 and 2, a preferred embodiment of the present invention provides a novel visual intercom terminal, including: the system comprises an ARM processor, a microphone array module 4, a camera 2, a power amplifier and loudspeaker module 1 and a key 3;

the ARM processor is respectively connected with the microphone array module 4, the camera 2, the power amplifier and loudspeaker module 1 and the keys 3; the ARM processor is connected with external alarm input equipment;

the microphone array module 4 comprises an ATH8819 core chip and a microphone array; the ATH8819 core chip is connected with the microphone array, and the ATH8819 core chip is connected with the ARM processor.

In this embodiment, the power amplifier and speaker module 1 includes an audio decoding playing chip, a digital power amplifier module and a monitoring speaker, and the audio decoding playing chip is respectively connected with the digital power amplifier module and the monitoring speaker. The digital power amplifier module is a 10W high-efficiency digital power amplifier module. The monitoring loudspeaker is a 3W monitoring loudspeaker. In this embodiment, the camera 2 is a 200-ten thousand high-speed camera.

Specifically, the utility model discloses a haisi high performance ARM treater, connect microphone array module and arrange this module in the inside circuit board and lean on the limit position, microphone array module has adopted and has fallen to fall and the echo cancellation design, this module design adopts professional acoustic technology's DSP unit ATH8819 to be core chip, ATH8819 provides a suitable echo cancellation and noise suppression scheme, it has high integration level single-chip, extremely low consumption (30 ~ 35mW), powerful AEC (acoustics echo cancellation) (60dB), outstanding full duplex performance, differential input/output reduces Radio Frequency (RF) interference, improve the immunity, Dynamic Range Control (DRC) improves the intelligibility of sound, the side tone is eliminated 25 ~ 35dB, eliminate acoustics echo tail length cover: 64-120 ms, small size. The design working process comprises the following steps: pickup, amplification, anti-aliasing filtering, analog/digital conversion and DSP processing, and the chip adopts an AMBIN voice processing algorithm, so that the quality of voice signals is improved, the interference of background noise in the voice pickup process is reduced, and the device has the advantages of long pickup distance, good pickup effect and the like. The device is connected with 200 ten thousand high-speed cameras through a standard camera interface, infrared night vision is supported, when the alarm is used for seeking help, light is too dark, light supplement can be automatically started, and the scene environment can be clearly shot. Through SPI interface connection professional audio decoding broadcast chip to adopt the high-efficient digital power amplifier module of 10W, have 3W's monitoring loudspeaker simultaneously, but the simultaneous sound production supports functions such as background music broadcast, fire control warning, host computer paging. The keys are connected through the GPIO port, and when the paging station is in standby, the key lamp is in a breathing state, the state is clear at a glance, and the two keys can be bound with different paging stations. The video recording function is provided, and the audio and video information is packaged into MP4 format and stored in the local SD card, and can also be uploaded to the background server, and can be freely selected. The RTMP live broadcasting system has the RTMP live broadcasting function, basically covers all client sides for watching, can watch on a browser, has low delay, is suitable for long-time playing, and can realize the continuous flow of flash played RTMP streams for a long time. The ONVIF protocol is supported, the monitoring platform can be accessed, the monitoring center can know the field situation conveniently, and the effect of safety precaution is achieved.

The novel visual intercom terminal further comprises a voice recognition module, wherein the voice recognition module is connected with the ARM processor, and the voice recognition module is connected through TT L level serial ports, so that the visual intercom terminal is accurate and sensitive in recognition, and is convenient for realizing voice control help seeking and alarming under the condition that a machine cannot be touched in an emergency.

In another embodiment, the novel visual intercom terminal further comprises a breathing lamp, the breathing lamp is connected with the ARM processor, the keys and the breathing lamp are connected through the GPIO port, the keys are in a breathing state during standby, the state is clear at a glance, the two keys can be bound with different paging stations, annular L ED light is matched with a circular button, and the novel visual intercom terminal is attractive in arc, concise and attractive and convenient for help seeking and alarming.

The video talkback terminal adopts a professional audio and video processing chip, runs an embedded L inux operating system, is stable and reliable, can run continuously for 7 x 24 hours, is internally provided with a high-definition high-speed camera, can record 1080P @30fps videos, can realize the function of alarming and seeking help in emergency, has an AI alarm triggering function, can identify the emergency behavior of people and automatically alarm, can output audio signals through a local machine, is intelligently controlled by the host machine, uses an SD slot to expand an SD card, supports local recording and video recording, and has an auxiliary audio output interface for connecting other power amplifiers to expand power.

The embodiment of the utility model provides a novel visual intercom system is still provided, include: the novel visual intercom terminal, the switch and the visual network broadcast intercom host are any one of the above;

the switch is respectively in communication connection with the novel visual intercom terminal and the visual network broadcast intercom host.

In this embodiment, the novel video intercom system further includes: an AI server; the AI server is communicatively coupled to the switch. In this embodiment, the novel video intercom system further includes: an intelligent paging station; the intelligent paging station is in communication connection with the switch.

It is visible, the utility model discloses an equipment connection such as host computer, AI server and intelligent paging station are talkbacked in switch and the broadcast of external visual network realizes intelligent control.

The utility model discloses microphone array module in the terminal adopts and falls the noise and the design of echo cancellation, and the pickup distance is far away, and does not have the echo; the ONVIF protocol is supported, and the monitoring platform can be accessed, so that the monitoring center can know the field situation in real time conveniently; besides seeking help and alarming, the system can be used as a common broadcast terminal to execute various broadcast tasks, such as background music playing, chime playing and the like; and voice help seeking and alarming are supported.

The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention. It should be understood that any modification, equivalent replacement, or improvement made by those skilled in the art without departing from the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A novel visual intercom terminal is characterized by comprising: the system comprises an ARM processor, a microphone array module, a camera, a power amplifier and loudspeaker module and keys;

the ARM processor is respectively connected with the microphone array module, the camera, the power amplifier and loudspeaker module and the keys; the ARM processor is connected with external alarm input equipment;

the microphone array module comprises an ATH8819 core chip and a microphone array; the ATH8819 core chip is connected with the microphone array, and the ATH8819 core chip is connected with the ARM processor.

2. The novel visual intercom terminal of claim 1, further comprising a voice recognition module, said voice recognition module being connected to said ARM processor.

3. The novel visual intercom terminal of claim 1, further comprising a breathing light, said breathing light being connected to said ARM processor.

4. The novel visual intercom terminal of claim 1, wherein the power amplifier and speaker module comprises an audio decoding playing chip, a digital power amplifier module and a monitoring speaker, and the audio decoding playing chip is connected with the digital power amplifier module and the monitoring speaker respectively.

5. The novel visual intercom terminal of claim 4, wherein said digital power amplifier module is a 10W high-efficiency digital power amplifier module.

6. The novel visual intercom terminal of claim 4, wherein said listening speaker is a 3W listening speaker.

7. The novel visual intercom terminal of claim 1, wherein said camera is a 200-thousand high-speed camera.

8. A novel visual intercom system, comprising: the novel visual intercom terminal, switch and visual network broadcast intercom host of any one of claims 1 to 7;

the switch is respectively in communication connection with the novel visual intercom terminal and the visual network broadcast intercom host.

9. The novel visual intercom system of claim 8, further comprising: an AI server; the AI server is communicatively coupled to the switch.

10. The novel visual intercom system of claim 8, further comprising: an intelligent paging station; the intelligent paging station is in communication connection with the switch.

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