CN210725185U

CN210725185U - Counter intercom system based on directional audio

Info

Publication number: CN210725185U
Application number: CN201922457210.4U
Authority: CN
Inventors: 栗振; 孙文光
Original assignee: Suzhou Hear Acoustic Technology Ltd
Current assignee: Suzhou Hear Acoustic Technology Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-06-09
Anticipated expiration: 2029-12-31
Also published as: WO2021135781A1

Abstract

This case is a sales counter intercom system based on directional audio frequency, including setting up at least one intercom on the sales counter, every the intercom includes the shell, is provided with the mainboard in the shell, every the intercom still is equipped with the first microphone, first audio decoder, first directional sound speaker, second microphone, second audio decoder, the directional sound loudspeaker of second of connecting the mainboard respectively, wherein, first microphone, first audio decoder, first directional sound speaker are towards the inboard of sales counter, second microphone, second audio decoder, the directional sound loudspeaker of second are towards the outside of sales counter. The first directional sound loudspeaker and the second directional sound loudspeaker of the scheme transmit concentrated sound which is transmitted in a preset range, the definition is high, the sound transmitted by the interphone at the inner side and the outer side of the counter is clearer, meanwhile, the noisy sound transmitted by the traditional interphone is eliminated, and the directional sound speaker can be applied to directional voice speaking or reminding of indoor or outdoor counters.

Description

Counter intercom system based on directional audio

Technical Field

The utility model relates to a sales counter intercom system based on directional audio frequency belongs to sales counter intercom system field.

Background

At present, intercoms are generally used in windows of banks, post offices and ticket halls to realize the contact between workers and other people, and a common interphone comprises a bank interphone loudspeaker in a glass wall, an audio amplification driving circuit, a bank interphone microphone, a power supply, a client interphone loudspeaker outside the glass wall, a client interphone microphone and an audio amplification driving circuit. Voice input/output signals between the inside and outside of the glass wall are electrically connected by wires. In general, the microphone and speaker are located relatively far apart to prevent noise from being induced in the feedback loop between the bank interphone microphone and the bank interphone speaker and between the client interphone speaker and the client interphone microphone.

The problems not only cause the installation to be unchanged, but also cause the space to be unattractive, the installation is troublesome, and meanwhile, the sound transmission of the loudspeaker can be influenced by the noisy public environment; and sound transmission is in all directions, which causes noise of the whole environment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a counter intercom system based on directional audio with concentrated sound and high definition.

In order to achieve the above object, the utility model discloses a following technical scheme realizes:

the utility model provides a sales counter intercom system based on directional audio frequency, is including setting up at least one intercom on the sales counter, every the intercom includes the shell, is provided with the mainboard in the shell, every the intercom still is equipped with the first microphone, first audio decoder, first directional sound speaker, second microphone, second audio decoder, the directional sound loudspeaker of second of connecting the mainboard respectively, wherein, first microphone, first audio decoder, first directional sound speaker are towards the inboard of sales counter, second microphone, second audio decoder, the directional sound loudspeaker of second are towards the outside of sales counter.

Preferably, the directional audio-based over-the-counter intercom system, wherein the first directional sound speaker includes a first sound wave filtering unit and a first sound output unit, and the first sound output unit is connected to the first audio decoder through the first sound wave filtering unit.

Preferably, the directional audio-based over-the-counter intercom system, wherein the second directional acoustic speaker includes a second acoustic filtering unit and a second acoustic output unit, and the second acoustic output unit is connected to the second audio decoder through the second acoustic filtering unit.

Preferably, each interphone is further provided with a camera, and the camera is connected with the main board through a video decoder.

Preferably, the directional audio based over-the-counter intercom system, wherein the at least one intercom is wall mounted or embedded on a window of the counter.

Preferably, the directional audio based over-the-counter intercom system, wherein the first microphone is arranged at a lower position on a window outside the counter in a wall-mounted or embedded mode; the second microphone is arranged on a workbench on the inner side of the counter.

Preferably, counter intercom system based on directional audio frequency, wherein, first audio decoder, first directional sound speaker, second audio decoder, the integration of second directional sound speaker are in the shell, the shell includes back lid, fixed frame, protecgulum, the shell passes through fixed frame adopts wall-hanging or embedded setting at the window of counter, have the mesh that two punishments are corresponding to first directional sound speaker, second directional sound speaker respectively on the protecgulum, one of them mesh is located the counter inboard, another place mesh is located the counter outside.

Preferably, in the counter intercom system based on directional audio, the functional module arranged on the inner circuit board in each intercom includes a recording output module, and the recording output module is connected with the main board.

The beneficial effect of present case: the counter intercom system based on directional audio of present case is provided with the mainboard, first microphone, first audio decoder, first directional sound speaker, the second microphone, the second audio decoder, the directional sound loudspeaker of second, make from first directional sound speaker, the directional sound loudspeaker of second spreads the sound and concentrates, propagate at predetermined within range, the definition is high, make the intercom inboard at the counter, the sound that the outside was spread is more clear, the noisy sound that traditional intercom spread has also been eliminated simultaneously, can be applied to indoor or outdoor counter directional pronunciation speech or remind.

Drawings

Fig. 1 is a schematic view of an application scenario of a directional audio-based counter intercom system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a physical device of a directional audio-based counter intercom system according to an embodiment of the present invention;

fig. 3 is a schematic circuit diagram illustrating internal functions of a directional audio-based counter intercom system according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

As shown in fig. 1 to 3, the present embodiment provides a directional audio-based intercom system of a counter 100, including at least one intercom set on the counter 100, each intercom includes a housing, a main board 10 is set in the housing, each intercom is further provided with a first microphone 20, a first audio decoder 30, a first directional audio speaker 40, a second microphone 50, a second audio decoder 60, and a second directional audio speaker 70 respectively connected to the main board 10, wherein the first microphone 20, the first audio decoder 30, and the first directional audio speaker 40 face the inner side of the counter 100, and the second microphone 50, the second audio decoder 60, and the second directional audio speaker 70 face the outer side of the counter 100.

The counter 100 intercom system based on directional audio is provided with a mainboard 10, a first microphone 20, a first audio decoder 30, a first directional sound loudspeaker 40, a second microphone 50, a second audio decoder 60 and a second directional sound speaker 70, so that sound transmitted from the first directional sound loudspeaker 40 and the second directional sound speaker 70 is concentrated and transmitted in a preset range, the definition is high, the sound transmitted from the inner side and the outer side of the counter 100 by an interphone is clearer, meanwhile, the noisy sound transmitted by a traditional interphone is eliminated, and the counter 100 intercom system can be applied to directional voice speaking or reminding of an indoor or outdoor counter 100.

The first directional acoustic speaker 40 includes a first acoustic wave filtering unit 41 and a first sound output unit 42, and the first sound output unit 42 is connected to the first audio decoder 30 through the first acoustic wave filtering unit 41.

The second directional acoustic speaker 70 includes a second sound filtering unit 71 and a second sound output unit 72, and the second sound output unit 72 is connected to the second audio decoder 60 through the second sound filtering unit 71. The directional range, i.e. the directional angle, of the sound output unit may be within 15 deg. directly in front of the window 200. The maximum sound pressure level is 50dB to 100dB, and the frequency range is 100Hz to 10 kHz.

Every still be provided with camera 90 on the intercom, camera 90 passes through video decoder 91 and is connected with mainboard 10, and camera 90 can shoot the image in real time, with camera 90 integration in the intercom, need not additionally set up camera 90, has saved the space.

At least one intercom is mounted, either wall-mounted or embedded, in window 200 of counter 100. The wall-mounted or embedded mode is simple to install, and space is saved.

The first microphone 20 is arranged at a lower position on the window 200 at the outer side of the counter 100 in a wall-mounted or embedded mode; the second microphone 50 is provided on a table inside the counter 100.

First audio decoder 30, first directional sound speaker 40, second audio decoder 60, second directional sound speaker 70 are integrated in the shell, the shell includes back lid 101, fixed frame 102, protecgulum 103, the shell passes through fixed frame 102 adopts wall-hanging or embedded setting at the window 200 of sales counter 100, have the mesh that two places correspond to first directional sound speaker 40, second directional sound speaker 70 respectively on the protecgulum 103, one of them locates the sales counter 100 inboard, and another place mesh locates the sales counter 100 outside. Integrate first audio decoder 30, first directional sound speaker 40, second audio decoder 60, second directional sound loudspeaker 70 in the shell makes things convenient for the dismouting, and the easy access, the mesh of first directional sound speaker 40, second directional sound loudspeaker 70 corresponds respectively and locates the inside and outside of sales counter 100, and the inboard outside all can the directional transmission sound.

The functional module arranged on the inner side circuit board in each interphone comprises a recording output module 80, and the recording output module 80 is connected with the main board 10. The recording output module 80 can assist recording while the camera 90 collects the portrait, further obtain more comprehensive recording content, and facilitate restoring the condition of the counter 100, and the recording output module 80 can obtain clearer recording by combining the first directional sound speaker 40 and the second directional sound speaker 70.

While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.

Claims

1. A counter intercom system based on directional audio is characterized in that: including setting up at least one intercom on the sales counter, every the intercom includes the shell, is provided with the mainboard in the shell, every the intercom still is equipped with the first microphone, first audio decoder, first directional sound speaker, second microphone, second audio decoder, the directional sound loudspeaker of second that connect the mainboard respectively, wherein, first microphone, first audio decoder, first directional sound speaker are towards the inboard of sales counter, second microphone, second audio decoder, the directional sound loudspeaker of second are towards the outside of sales counter.

2. The directional audio based over-the-counter intercom system of claim 1, wherein the first directional acoustic speaker comprises a first acoustic filtering unit and a first sound output unit, the first sound output unit being connected to the first audio decoder through the first acoustic filtering unit.

3. The directional audio based over-the-counter intercom system of claim 1, wherein the second directional acoustic speaker comprises a second acoustic filtering unit and a second acoustic output unit, the second acoustic output unit being connected to a second audio decoder through the second acoustic filtering unit.

4. The directional audio based over-the-counter intercom system of claim 1, further comprising a camera on each of said interphones, said camera connected to the main board through a video decoder.

5. The directional audio based over-the-counter intercom system of claim 1, wherein said at least one intercom is wall mounted or embedded in a window of the counter.

6. The directional audio based over-the-counter intercom system of claim 5, wherein said first microphone is positioned lower on a window outside the counter in a wall mounted or embedded manner; the second microphone is arranged on a workbench on the inner side of the counter.

7. The directional audio based over-the-counter intercom system of claim 5, wherein the first audio decoder, the first directional audio speaker, the second audio decoder, the second directional audio speaker are integrated within the housing, the housing comprises a back cover, a fixed frame, a front cover, the housing is wall-mounted or embedded through the fixed frame to a window of the over-the-counter, the front cover has two holes corresponding to the first directional audio speaker and the second directional audio speaker, respectively, one of the holes is located inside the over-the-counter, and the other hole is located outside the over-the-counter.

8. The directional audio based over-the-counter intercom system of claim 1, wherein said functional modules disposed on the inside circuit board of each of said intercom units include a recorded sound output module, said recorded sound output module being connected to the main board.