CN210041807U

CN210041807U - Diversity expander

Info

Publication number: CN210041807U
Application number: CN201921241600.1U
Authority: CN
Inventors: 吴劲强
Original assignee: Enping Ruiying Audio Technology Co Ltd
Current assignee: Enping Ruiying Audio Technology Co Ltd
Priority date: 2019-08-01
Filing date: 2019-08-01
Publication date: 2020-02-07
Anticipated expiration: 2029-08-01

Abstract

The utility model discloses a diversity expander, which comprises a plurality of audio receiving ports, a plurality of data receiving ports, a plurality of automatic gain control modules, a control unit module, a selection module and an audio output module; the control unit module is used for screening out the optimal audio signal and obtaining a screening result according to the audio data, and the selection module obtains the optimal audio signal output according to the screening result; the effect of automatically screening out the optimal audio signals from a plurality of audio signals is realized, an engineer is not required to manually switch audio channels, and the audio switching without frequency interruption is realized.

Description

Diversity expander

Technical Field

The utility model relates to an audio processing equipment, especially a diversity extender.

Background

Currently, a wireless transmitter can only be used in a single area covered by a corresponding wireless receiver, and the frequency is cut off when the wireless transmitter exceeds the coverage area of the wireless receiver. The coverage of multiple areas can only be realized by using multiple radio receivers in the same frequency band. When the transmitted signal moves to the boundary between the coverage areas of two wireless receivers, the output signal needs to be manually switched to the receiver corresponding to the next area. This process is prone to short-term frequency discontinuities.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a diversity extender, select optimum audio signal automatically from a plurality of audio signal.

The utility model provides a technical scheme that its problem adopted is:

a diversity extender comprising:

the system comprises a plurality of audio receiving ports, a plurality of audio receiving ports and a plurality of audio receiving ports, wherein the audio receiving ports are used for receiving audio signals sent by audio receivers, and each audio receiving port receives the audio signal of one audio receiver;

the system comprises a plurality of data receiving ports, a plurality of data receiving ports and a plurality of data transmitting ports, wherein the data receiving ports are used for receiving audio data sent by an audio receiver, each data receiving port receives a data signal of one audio receiver, and the audio data comprises signal intensity, signal-to-noise ratio and level smoothness;

the automatic gain control modules are used for stabilizing the level of an audio signal, and one automatic gain control module is correspondingly connected with one audio receiving port;

the control unit module is used for screening out the optimal audio signal and obtaining the screening result according to the audio data and is connected with the data receiving ports;

the selection module is used for selecting an optimal audio signal from a plurality of audio signals according to the screening result of the control unit module and is connected with the automatic gain control modules; and

and the audio output module is used for outputting the optimal audio signal and is connected with the selection module.

Further, a diversity extender further comprises a dynamic extension module for improving a dynamic range of an optimal audio signal, the dynamic extension module being disposed between the selection module and the audio output module.

Furthermore, the diversity extender also comprises an earphone amplifying module used for inserting an earphone, and the earphone amplifying module is connected with the audio output module.

Furthermore, the diversity extender also comprises a display module, and the display module is connected with the control unit module; the display module comprises an LED display screen.

Further, a diversity extender also includes a power module.

Preferably, the control unit module comprises a main control chip of model M453V.

Preferably, the selection module comprises a multi-way selection chip of MC14066 type.

The diversity expander at least has the following beneficial effects: receiving audio signals from a corresponding audio receiver through a plurality of audio receiving ports and audio data from a corresponding audio receiver through a plurality of data receiving ports; the control unit module screens out the optimal audio signal and obtains a screening result according to the audio data, and the screening result is sent to the selection module, so that the selection module selects the optimal audio signal to output; the effect of automatically screening out the optimal audio signals from a plurality of audio signals is realized, an engineer is not required to manually switch audio channels, and the audio switching without frequency interruption is realized.

Drawings

The invention is further described with reference to the following figures and examples.

Fig. 1 is a structural diagram of a diversity extender according to an embodiment of the present invention;

fig. 2 is a block diagram of a diversity extender according to another embodiment of the present invention;

FIG. 3 is a circuit diagram of a control unit module;

FIG. 4 is a circuit diagram of an audio receive port and an automatic gain control module;

FIG. 5 is a circuit diagram of a selection module;

FIG. 6 is a circuit diagram of a data receiving port;

FIG. 7 is a circuit diagram of a dynamic expansion module;

fig. 8 is a circuit diagram of an audio output module;

fig. 9 is a circuit diagram of the headphone amplifier module.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 3, 4, 5, 6 and 8, an embodiment of the present invention provides a diversity extender, including:

a plurality of audio receiving ports 100 for receiving audio signals transmitted by audio receivers, wherein each audio receiving port 100 receives an audio signal of one audio receiver;

a plurality of data receiving ports 200 for receiving audio data transmitted by an audio receiver, each data receiving port 200 receiving a data signal of one audio receiver;

a plurality of automatic gain control modules 300 for stabilizing the level of the audio signal, one automatic gain control module 300 being correspondingly connected to one audio receiving port 100;

a control unit module 400 for screening out an optimal audio signal and obtaining a screening result according to the audio data, and connecting the data receiving ports 200;

a selection module 500, configured to select an optimal audio signal from the multiple audio signals according to the screening result of the control unit module 400, and connect the selected audio signal with the multiple automatic gain control modules 300; and

the audio output module 600 is used for outputting an optimal audio signal and is connected to the selection module 500.

In this embodiment, multiple audio receivers are placed in different areas to receive the same original audio. An audio receiving port 100 and a corresponding data receiving port 200 are also coupled to an audio receiver for receiving audio signals and audio data, respectively. The multi-channel audio signal enters the automatic gain control module 300 and is transmitted to the selection module 500 after being stabilized. The control unit module 400 receives the audio data sent by the data receiving port 200, and screens out an optimal audio signal and obtains a screening result, specifically, the audio data includes signal strength, signal-to-noise ratio, and level stability. The selection module 500 receives the screening result sent by the control module, selects the channel corresponding to the optimal audio signal to be switched on, and outputs the optimal audio signal to the audio output module 600; the audio output module 600 is connected with a sound device to output audio. The effect of automatically screening out the optimal audio signals from a plurality of audio signals is realized, an engineer is not required to manually switch audio channels, and the audio switching without frequency interruption is realized.

Referring to fig. 2 and 7, another embodiment, a diversity extender further includes a dynamic extension module 700, the dynamic extension module 700 being disposed between the selection module 500 and the audio output module 600. The dynamic extension module 700 improves the dynamic range of the optimal audio signal, further improving audio quality.

Referring to fig. 2 and 9, further, the diversity extender further includes a headphone amplifier module 610, and the headphone amplifier module 610 is connected to the audio output module 600. The user inserts an earphone into the earphone amplification module 610 and can hear the audio with the best tone quality screened by the diversity extender.

Further, the diversity extender further comprises a display module 810 and a power module 820, wherein the display module 810 is connected with the control unit module 400; the display module 810 includes an LED display screen. The display module 810 displays the status of the diversity extender and the processing result to the user. Power module 820 provides operating power for the diversity extender. The display module 810 and the power module 820 are all in the prior art, and the specific circuit structure and the connection relationship with other circuit structures are well known and will not be described in detail herein.

Preferably, the control unit module 400 includes a main control chip of model M453V. The selection module 500 includes a multiplexing chip of model MC 14066.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above embodiment, and the technical effects of the present invention can be achieved by the same means, which all belong to the protection scope of the present invention.

Claims

1. A diversity extender, comprising:

2. The diversity extender of claim 1, further comprising a dynamic extension module for increasing the dynamic range of an optimized audio signal, the dynamic extension module being disposed between the selection module and the audio output module.

3. The diversity extender of claim 2, further comprising a headphone amplifier module for insertion of headphones, the headphone amplifier module being connected to the audio output module.

4. The diversity extender of claim 3, further comprising a display module, said display module being connected to said control unit module; the display module comprises an LED display screen.

5. The diversity extender of claim 4, further comprising a power module.

6. The diversity extender of any of claims 1-5, wherein the control unit module comprises a master control chip model M453V.

7. The diversity extender of any of claims 1-5, wherein the selection module comprises a MC14066 type multiplexing chip.