CN203416395U - Multipath audio input automatic detection and output priority control apparatus - Google Patents
Multipath audio input automatic detection and output priority control apparatus Download PDFInfo
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- CN203416395U CN203416395U CN201320242840.XU CN201320242840U CN203416395U CN 203416395 U CN203416395 U CN 203416395U CN 201320242840 U CN201320242840 U CN 201320242840U CN 203416395 U CN203416395 U CN 203416395U
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Abstract
The utility model discloses a multipath audio input automatic detection and output priority control apparatus, comprising an audio reception module, an audio detection module for receiving the sound source emitted by the audio reception module and emitting indication signals, a microprocessor for receiving the indication signals emitted by the audio detection module and outputting control signals, and multipath selectors for receiving control signals emitted by the microprocessor and controlling audio output, wherein all the components are connected in sequence. The audio reception module is connected with multipath selectors; the audio reception module comprises audio receivers for receiving and emitting sound sources; and the audio detection module comprises audio detection circuits corresponding to audio receivers one by one. The apparatus is simple, input sound sources are control in priority, the priority can be adjusted momentarily, and the apparatus can be widely applied for mountain torrent early warning equipment.
Description
Technical field
The utility model relates to public broadcasting technical field, and specifically a kind of multichannel source of sound input detects and output priority control device automatically.
Background technology
Mountain torrents early warning main frame need to access various tone sources, such as: local linear input, the input of local microphone, MP3 module audio, wireless receiving module audio frequency, FM receiver module audio frequency etc., however multichannel source of sound is but shared monitoring output and power amplification output.Existing analog comparator can be controlled the output priority of two-way source of sound simply, when but the output priority of the Yao Dui tri-above sources of sound in Ji San road, road is controlled, it is complicated that this circuit will become, once and circuit determine, output priority cannot change in the later stage.
Utility model content
The utility model, for the problem of above-mentioned existence, provides a kind of multichannel source of sound input simple, that can carry out priority control automatically to detect and output priority control device.
The utility model for achieving the above object, takes following technical scheme to be achieved:
Source of sound input detects and an output priority control device automatically, comprises the source of sound receiver module that connects successively, for receiving the source of sound that source of sound receiver module sends the source of sound detection module of exporting index signal, for receiving the index signal that source of sound detection module sends the microprocessor of exporting control signal and for receiving the control signal that microprocessor sends the MUX of controlling source of sound output; Described source of sound receiver module connects MUX simultaneously; Described source of sound receiver module is by forming for receiving and send the source of sound receiver of source of sound; Described source of sound detection module by with source of sound receiver one to one source of sound testing circuit form; Described source of sound testing circuit comprises operational amplification circuit for receiving and amplify source of sound, for source of sound being converted into the current rectifying and wave filtering circuit of direct current signal and for direct current signal being converted into index signal and exporting the index signal output circuit of index signal, described operational amplification circuit, current rectifying and wave filtering circuit and index signal output circuit are connected successively.
As shown in Figure 1, the automatic detection of multichannel source of sound input and priority control apparatus thereof comprise source of sound receiver module, source of sound detection module, microprocessor and four parts of MUX.Source of sound receiver module receives source of sound by wherein each source of sound receiver, as local linear input, the input of local microphone, MP3 module audio, wireless receiving module audio frequency, FM receiver module audio frequency etc., and then the source of sound receiving is outputed to source of sound detection module.Source of sound detection module consists of multichannel source of sound testing circuit, and the quantity of source of sound testing circuit is no less than two-way; Source of sound receiver is corresponding one by one with source of sound testing circuit, and quantity equates.Source of sound receiver module connects source of sound testing circuit and MUX simultaneously.Each road source of sound testing circuit, when source of sound input having been detected, all can, toward an index signal of microprocessor output, tell this road of microprocessor to have source of sound input.Microprocessor, according to the index signal of input, sends predetermined control signal to MUX.MUX, according to control signal gating specified loop, specifies source of sound just by MUX, to export.Thisly with microprocessor, control the mode that MUX is selected source of sound output channel, can be easy to input source of sound, determine priority as required, and microprocessor is accepted computer control and can be changed as required priority parameters.
Source of sound testing circuit is as shown in Figure 2: source of sound input source of sound testing circuit, through operational amplification circuit, export to current rectifying and wave filtering circuit.Operational amplification circuit multiplication factor is 50 times of left and right, and R2/R1 ≈ 50.Multiplication factor is relevant with the sensitivity of index signal, can adjust according to sound source signal intensity and ambient noise intensity.Audio signal after amplification, after current rectifying and wave filtering circuit, becomes direct current signal.Then direct current signal is opened the triode of index signal output circuit, finally in ON end output index signal.
The grade that just starts to judge these index signals after the index signal of microprocessor reception ON end, then transmits control signal to MUX.The microprocessor model here does not limit, and needs only UART, I/O resource enough, for example STC12C5A60S2.The model of MUX does not limit yet, and the selection of model is limited to input source of sound loop number.Take CD4051 as example, and it can support 8 road input signals, has an output loop, needs 4 control signals: 3 paths are selected signal, 1 chip select signal.
Suppose that now source of sound 1 and source of sound 2 have signal input, the playback level of predetermined source of sound 1 is than source of sound 2 height.Because source of sound 1 and source of sound 2 have input, so detecting 2, source of sound detection 1 and source of sound have index signal output.Microprocessor receives 2 index signals, and according to predetermined source of sound output level, microprocessor is controlled the output loop of MUX gating source of sound 1, and source of sound 1 is played.If now source of sound 1 stops, no signal input.Microprocessor only detects source of sound and detects 2 index signal, controls MUX gating source of sound 2 and output loop, and source of sound 2 is played.
Microprocessor can be connected with computer by serial ports, at the enterprising line parameter of computer application program, revises, and comprises the adjustment of output priority etc.
The beneficial effects of the utility model are as follows: the input of multichannel source of sound detects automatically and output priority control device adopts source of sound detection module to monitor source of sound, while having source of sound input, just send index signal, microprocessor responds to the index signal receiving, and export control signal and control the output of MUX gating appointment source of sound, thereby reach the object of controlling output priority.Wherein microcontroller is connected by serial ports with computer, can use the parameter of allocation of computer microcontroller.The utility model operation is controlled very flexible to priority, and can to the priority previously having set, adjust by the mode of configuration parameter.
Accompanying drawing explanation
Fig. 1 is that multichannel source of sound input of the present utility model detects and output priority control device schematic diagram automatically;
Fig. 2 is source of sound testing circuit figure of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
The utility model embodiment is as shown in Figure 1: a kind of multichannel source of sound input detects and output priority control device automatically, comprises the source of sound receiver module 1 that connects successively, for receiving the source of sound that source of sound receiver module 1 sends the source of sound detection module 2 of exporting index signal, for receiving the index signal that source of sound detection module 2 sends the microprocessor of exporting control signal and for receiving the control signal that microprocessor sends the MUX of controlling source of sound output; Described source of sound receiver module 1 connects MUX simultaneously; Described source of sound receiver module 1 is by forming for receiving and send the source of sound receiver of source of sound; Described source of sound detection module 2 by with source of sound receiver one to one source of sound testing circuit form.
Described source of sound testing circuit comprises operational amplification circuit for receiving and amplify source of sound, for source of sound being converted into the current rectifying and wave filtering circuit of direct current signal and for direct current signal being converted into index signal and exporting the index signal output circuit of index signal, described operational amplification circuit, current rectifying and wave filtering circuit and index signal output circuit are connected successively.
As shown in Figure 1, the automatic detection of multichannel source of sound input and priority control apparatus thereof comprise source of sound receiver module 1, source of sound detection module 2, microprocessor and four parts of MUX.Source of sound receiver module 1 receives source of sound by wherein each source of sound receiver, as local linear input, the input of local microphone, MP3 module audio, wireless receiving module audio frequency, FM receiver module audio frequency etc., and then the source of sound receiving is outputed to source of sound detection module 2.Source of sound detection module 2 consists of multichannel source of sound testing circuit, and the quantity of source of sound testing circuit is no less than two-way; Source of sound receiver is corresponding one by one with source of sound testing circuit, and quantity equates.Source of sound receiver module 1 connects source of sound testing circuit 2 and MUX simultaneously.Each road source of sound testing circuit, when source of sound input having been detected, all can, toward an index signal of microprocessor output, tell this road of microprocessor to have source of sound input.Microprocessor, according to the index signal of input, sends predetermined control signal to MUX.MUX, according to control signal gating specified loop, specifies source of sound just by MUX, to export.Thisly with microprocessor, control the mode that MUX is selected source of sound output channel, can be easy to input source of sound, determine priority as required, and microprocessor is accepted computer control and can be changed as required priority parameters.
Source of sound testing circuit is as shown in Figure 2: source of sound input source of sound testing circuit, through operational amplification circuit 3, export to current rectifying and wave filtering circuit 4.Operational amplification circuit 3 multiplication factors are 50 times of left and right, and R2/R1 ≈ 50.Multiplication factor is relevant with the sensitivity of index signal, can adjust according to sound source signal intensity and ambient noise intensity.Audio signal after amplification, after current rectifying and wave filtering circuit 4, becomes direct current signal.Then direct current signal is opened the triode of index signal output circuit 5, finally in ON end output index signal.
The grade that just starts to judge these index signals after the index signal of microprocessor reception ON end, then transmits control signal to MUX.The microprocessor model here does not limit, and needs only UART, I/O resource enough, for example STC12C5A60S2.The model of MUX does not limit yet, and the selection of model is limited to input source of sound loop number.Take CD4051 as example, and it can support 8 road input signals, has an output loop, needs 4 control signals: 3 paths are selected signal, 1 chip select signal.
Suppose that now source of sound 1 and source of sound 2 have signal input, the playback level of predetermined source of sound 1 is than source of sound 2 height.Because source of sound 1 and source of sound 2 have input, so detecting 2, source of sound detection 1 and source of sound have index signal output.Microprocessor receives 2 index signals, and according to predetermined source of sound output level, microprocessor is controlled the output loop of MUX gating source of sound 1, and source of sound 1 is played.If now source of sound 1 stops, no signal input.Microprocessor only detects source of sound and detects 2 index signal, controls MUX gating source of sound 2 and output loop, and source of sound 2 is played.
Microprocessor can be connected with computer by serial ports, at the enterprising line parameter of computer application program, revises, and comprises the adjustment of output priority etc.
Only as described above, it is only the preferred embodiment of the utility model, when not limiting with this scope of the utility model enforcement, the content of generally recording according to the utility model claim and utility model specification has been done simple equivalence and has been changed and modify, within all still belonging to the utility model claim scope.In addition, summary part and title are only the use for auxiliary patent document search, are not used for limiting the interest field of the utility model.
Claims (3)
1. a multichannel source of sound input detects and output priority control device automatically, it is characterized in that, comprise successively the source of sound receiver module that connects, for receiving the source of sound that source of sound receiver module sends the source of sound detection module of exporting index signal, for receiving the index signal that source of sound detection module sends the microprocessor of exporting control signal and for receiving the control signal that microprocessor sends the MUX of controlling source of sound output; Described source of sound receiver module connects MUX simultaneously; Described source of sound receiver module is by forming for receiving and send the source of sound receiver of source of sound; Described source of sound detection module by with source of sound receiver one to one source of sound testing circuit form;
Described source of sound testing circuit comprises operational amplification circuit for receiving and amplify source of sound, for source of sound being converted into the current rectifying and wave filtering circuit of direct current signal and for direct current signal being converted into index signal and exporting the index signal output circuit of index signal, described operational amplification circuit, current rectifying and wave filtering circuit and index signal output circuit are connected successively.
2. multichannel source of sound input according to claim 1 detects and output priority control device automatically, it is characterized in that, the quantity of described source of sound testing circuit is no less than two-way.
3. multichannel source of sound input according to claim 1 detects and output priority control device automatically, it is characterized in that, described microprocessor is connected with computer by serial ports.
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| CN201320242840.XU CN203416395U (en) | 2013-05-08 | 2013-05-08 | Multipath audio input automatic detection and output priority control apparatus |
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| CN201320242840.XU CN203416395U (en) | 2013-05-08 | 2013-05-08 | Multipath audio input automatic detection and output priority control apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228058A (en) * | 2014-06-24 | 2016-01-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of have the audio system and control method thereof that reduce multichannel source of sound noise |
| CN105913859A (en) * | 2015-12-12 | 2016-08-31 | 乐视致新电子科技（天津）有限公司 | Sound source input mode prompting method and audio playing equipment |
| CN106358126A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Multi-audio frequency playing method, system and terminal |
| CN108650580A (en) * | 2018-05-02 | 2018-10-12 | 广州莱拓智能科技有限公司 | Internet of Things sound integral machine and sound source switching method, device |
| CN108886375A (en) * | 2016-04-05 | 2018-11-23 | 罗德施瓦兹两合股份有限公司 | Processing unit and method |
-
2013
- 2013-05-08 CN CN201320242840.XU patent/CN203416395U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228058A (en) * | 2014-06-24 | 2016-01-06 | 惠州市德赛西威汽车电子股份有限公司 | A kind of have the audio system and control method thereof that reduce multichannel source of sound noise |
| CN105228058B (en) * | 2014-06-24 | 2018-12-11 | 惠州市德赛西威汽车电子股份有限公司 | A kind of audio system and its control method with reduction multichannel source of sound noise |
| CN105913859A (en) * | 2015-12-12 | 2016-08-31 | 乐视致新电子科技（天津）有限公司 | Sound source input mode prompting method and audio playing equipment |
| CN108886375A (en) * | 2016-04-05 | 2018-11-23 | 罗德施瓦兹两合股份有限公司 | Processing unit and method |
| CN108886375B (en) * | 2016-04-05 | 2020-10-09 | 罗德施瓦兹两合股份有限公司 | Processing apparatus and method |
| CN106358126A (en) * | 2016-09-26 | 2017-01-25 | 宇龙计算机通信科技(深圳)有限公司 | Multi-audio frequency playing method, system and terminal |
| CN108650580A (en) * | 2018-05-02 | 2018-10-12 | 广州莱拓智能科技有限公司 | Internet of Things sound integral machine and sound source switching method, device |
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Address after: 510663 Tianhe District City, Guangdong Province, Gaotang New District, the eastern part of the International Incubator, the 05 floor and the 4 floor of the northeast side of the 3 Patentee after: GUANGDONG AEBELL TECHNOLOGY GROUP CO.,LTD. Address before: 510663 Tianhe District City, Guangdong Province, Gaotang New District, the eastern part of the International Incubator, the 05 floor and the 4 floor of the northeast side of the 3 Patentee before: Guangdong United States electric Baer Technology Group Co.,Ltd. Address after: 510663 Tianhe District City, Guangdong Province, Gaotang New District, the eastern part of the International Incubator, the 05 floor and the 4 floor of the northeast side of the 3 Patentee after: Guangdong United States electric Baer Technology Group Co.,Ltd. Address before: 510663 Tianhe District City, Guangdong Province, Gaotang New District, the eastern part of the International Incubator, the 05 floor and the 4 floor of the northeast side of the 3 Patentee before: GUANGZHOU AEBELL ELECTRICAL TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20210508 |