CN206272833U - Audio tandem module - Google Patents
Audio tandem module Download PDFInfo
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- CN206272833U CN206272833U CN201620966059.0U CN201620966059U CN206272833U CN 206272833 U CN206272833 U CN 206272833U CN 201620966059 U CN201620966059 U CN 201620966059U CN 206272833 U CN206272833 U CN 206272833U
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- audio
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Abstract
The utility model is related to a kind of audio tandem module, including eight road audio input circuits, eight road audio output circuits, matrix switch and display circuit, the input of the output end connection matrix switch of eight described road audio input circuits, the output end of matrix switch connects the input of eight road audio output circuits；Latch one and latch two receive the I that digital tandem module is sended over2C signal, the connection matrix of latch one switch, the connection display circuit of latch two.The utility model can be according to by I2C string code instruction selections are not multiple homologous while will turn on to different service area inputs, information source is carried out to be controlled with the gating of service area, coupled system other functional modules, can realize by pre-programmed full-automatic remote-controlled remote broadcast function, and with multi-information source multiplexer channel Multichannel Parallel broadcast capability, and the broadcast system of different scales can be flexibly constituted, it is easy to maintenance reliability high.
Description
Technical field
The utility model belongs to broadcasting equipment field, is related to a kind of audio tandem module, is particularly suitable for tandem wide
Broadcast source.
Background technology
Current subway broadcasting equipment is safing critical facility in metro operation, is meeting basic broadcast capability demand
Outward, fire broadcast function need to be taken into account.Existing broadcasting equipment can not meet the parallel broadcast in multicast area and multi-operator by preferential
Level take service area functional requirement, and power-on serving maintenance needs.
The content of the invention
Problem to be solved in the utility model is to overcome the deficiencies in the prior art, there is provided a kind of audio tandem module,
With eight tunnel audio inputs and eight tunnel audio output, and there are digital control logic 8x8 electronic switch matrix circuits, the matrix is total internally
Under the control of line, eight tunnel input signals can be switched to different outputs simultaneously, carry out information source and controlled with the gating of service area.It is
Broadcast system realizes the major part of passage control in parallel broadcast capability.
The utility model solves its technical problem and takes following technical scheme to realize：
It is defeated according to a kind of audio tandem module that the utility model is provided, including eight road audio input circuits, eight tunnel audios
Go out circuit, matrix switch and display circuit, the input of the output end connection matrix switch of described eight road audio input circuits,
The output end of matrix switch connects the input of eight road audio output circuits；Latch one and latch two receive digital tandem mould
The I that block is sended over2C signal, the connection matrix of latch one switch, the connection display circuit of latch two.
The utility model has significant advantage and beneficial effect compared with prior art：
Because the utility model uses audio tandem technology, as matrix gating circuit, other functional units can be coordinated,
The gating of single or multiple information sources and multiple passages is realized, is to realize passage control in parallel broadcast capability in broadcast system equipment
Major technique equipment.The utility model can be according to by I2C string code instruction selections are not multiple homologous while will turn on to different
Service area input, the gating for carrying out information source and service area is controlled, coupled system other functional modules, it is possible to achieve by predetermined journey
The full-automatic remote-controlled remote broadcast function of sequence, and with multi-information source multiplexer channel Multichannel Parallel broadcast capability, and can flexible group
Into the broadcast system of different scales, it is easy to maintenance reliability high.
Specific embodiment of the present utility model is shown in detail by following examples and its accompanying drawing.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the present utility model；
Fig. 2 is one of circuit diagram of the present utility model；
Fig. 3 is the two of circuit diagram of the present utility model；
Fig. 4 is external structure installation diagram of the present utility model.
Wherein：1st, front panel, 2, main circuit board, 3, power supply terminal plug.
Specific embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the specific embodiment, structure, the feature that are provided according to the utility model
And its effect, describe in detail as after.
A kind of audio tandem module as shown in Figures 1 to 3, including eight road audio input circuits, 8 road audio output circuits,
Matrix switch and display circuit, the input of the output end connection matrix switch of described eight road audio input circuits, matrix are opened
The output end of pass connects the input of eight road audio output circuits；Latch one and latch two receive digital tandem module and send
The I for coming over2C signal, the connection matrix of latch one switch, the signal that will be received is latched, for controlling switch matrix, lock
Storage two connects display circuit, and the service area to connecting shows.
The utility model can be controlled gating to eight tunnel information sources, eight service areas.Audio input circuit will be received
Balanced Audio signal or single-ended audio signal be adjusted to rated value be 0dB single-ended signal, after electronic switch matrix, connect
Other modules are arrived to eight road audio output circuit outputs, there is audio output circuit insulation blocking to act on.Latch one and latch
Device two receives the I that digital tandem module is sended over2C signal, the signal that will be received is latched, for controlling switch square
Battle array, and to connect service area show.
The audio of station Broadcasting Control box output is balance, rated value is+6dB, through electric capacity E1, E2, resistance R1（3k9）、
R2（3k9）Afterwards, 2 pin and 3 pin of IC1 are input to, feedback resistance is R4（2k）, i.e. multiplication factor is R4/R1=0.5, then from IC1
The 1st pin output signal be 0dB, the signal（S1）It is connected to IC7（MT8816）The 35th pin.Each switching point is believed by I2C in IC7
Number control（Through IC5：PCF8574）, it is output as O1-O8, respectively exports and 96 needle sockets are connected to after amplifier, output amplifier
Multiplication factor is 1.
Fig. 4 surface structure installation diagrams, front panel 1, the connection output wiring of input power source of main circuit board 2 terminal plug 3.
Claims (1)
1. a kind of audio tandem module, including eight road audio input circuits, eight road audio output circuits, matrix switch and display electricity
Road, it is characterised in that：Eight described road audio input circuits output end connection matrix switch input, matrix switch it is defeated
Go out the input of eight road audio output circuits of end connection；Latch one and latch two receive what digital tandem module was sended over
I2C signal, the connection matrix of latch one switch, the connection display circuit of latch two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620966059.0U CN206272833U (en) | 2016-08-29 | 2016-08-29 | Audio tandem module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620966059.0U CN206272833U (en) | 2016-08-29 | 2016-08-29 | Audio tandem module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206272833U true CN206272833U (en) | 2017-06-20 |
Family
ID=59036837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620966059.0U Expired - Fee Related CN206272833U (en) | 2016-08-29 | 2016-08-29 | Audio tandem module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206272833U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210989A (en) * | 2016-08-29 | 2016-12-07 | 天津渤海奥立电子有限公司 | Audio frequency tandem module |
-
2016
- 2016-08-29 CN CN201620966059.0U patent/CN206272833U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106210989A (en) * | 2016-08-29 | 2016-12-07 | 天津渤海奥立电子有限公司 | Audio frequency tandem module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170620 Termination date: 20190829 |