CN202353676U - AV (audio/video) host and backup switcher - Google Patents
AV (audio/video) host and backup switcher Download PDFInfo
- Publication number
- CN202353676U CN202353676U CN2011203769722U CN201120376972U CN202353676U CN 202353676 U CN202353676 U CN 202353676U CN 2011203769722 U CN2011203769722 U CN 2011203769722U CN 201120376972 U CN201120376972 U CN 201120376972U CN 202353676 U CN202353676 U CN 202353676U
- Authority
- CN
- China
- Prior art keywords
- circuit
- audio
- audio frequency
- looking
- video
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Studio Circuits (AREA)
Abstract
The utility model discloses an AV (audio/video) host and backup switcher, which includes a plurality of AV input circuits, a plurality of AV detection circuit modules electrically and correspondingly connected with the plurality of AV input circuits, a processor control circuit, a switching control circuit, and a AV output circuit electrically connected with the switching control circuit; each AV detection circuit module includes a video signal detection circuit and an audio signal detection circuit; and each of the video detection circuit and the audio detection circuit is provided with one end connected with the corresponding AV input circuit electrically, and the other end connected with the processor control circuit and the switching control circuit electrically. The AV host and backup switcher can monitor broadcast AV signal parameters, so as to achieve automatic identification and switching without manual intervention, and ensure reliability of a broadcast system in service.
Description
Technical field
The utility model relates to a kind of automatic switching apparatus, relates in particular to a kind of be exclusively used in broadcast world video/audio signal monitoring and the equipment that switches automatically.
Background technology
Video-audio switcher is specifically designed to vision signal and audio signal (non-equilibrium stereo audio signal) is switched and distributed, can multiple signals be switched from input channel be transported on the arbitrary passage the output channel, and independently of one another between output channel.
Video-audio switcher of the prior art can't detect video/audio signal mostly automatically; Can't detect input signal automatically, therefore when input signal breaks down, need artificial location erroneous point; And manual reversion mistake; This process generally needs than the long time, and in the long period, can directly influence the signal that broadcasts at this section.
The utility model content
The purpose of the utility model is, a kind of active and standby switch of audio frequency of looking is provided, and can monitor broadcasting video/audio signal parameter, thereby reach automatic identification and switching, need not manual intervention, guarantees the reliability service of broadcast system.
For realizing above-mentioned purpose; The utility model provides a kind of active and standby switch of audio frequency of looking, and comprising: several look the audio frequency input circuit, with several look the audio frequency input circuit corresponding electrically connect several look audio detection circuit module, processor control circuit, control switching circuit, and with the audio output circuit of looking of control switching circuit electric connection; Said each look and include a video signal detection circuit, and audio signal testing circuit in the audio detection circuit module; This video signal detection circuit, and corresponding with it the respectively audio frequency input circuit of looking of audio signal testing circuit one end electrically connect, this video signal detection circuit, and the audio signal testing circuit other end respectively with processor control circuit and control switching circuit electric connection.
Wherein, said each look all corresponding simulation video/audio signal input channel that electrically connects of audio frequency input circuit.
The processor control circuit of the utility model also is electrically connected with man-machine interface.
Further, said processor control circuit also is electrically connected with the host computer communication interface.
Said host computer communication interface can be RS232 communication interface or ethernet interface.
In addition, include signal conditioning circuit in the said control switching circuit.
The said audio output circuit of looking is electrically connected with multichannel video/audio signal output channel.
The utility model look the active and standby switch of audio frequency; It can be monitored broadcast video, audio signal parameters automatically, thereby reaches the function of automatic identification and switching, and it need not manual intervention; Can guarantee the reliability service of broadcast system, satisfy the harsh index request of broadcast system.
Description of drawings
Fig. 1 looks the circuit module sketch map of active and standby switch one specific embodiment of audio frequency for the utility model.
Embodiment
As shown in Figure 1; The utility model provides a kind of active and standby switch of audio frequency of looking, and it comprises several and looks audio frequency input circuit (CH1, CH2 ... CHN) 10, with several look audio frequency input circuit 10 corresponding electrically connect several look audio detection circuit module, processor control circuit 30, control switching circuit 40, and with control switching circuit 40 electric connections look audio output circuit 50.Wherein, Said each look and include a video signal detection circuit 22, and audio signal testing circuit 24 in the audio detection circuit module; This video signal detection circuit 22, and corresponding with it the respectively audio frequency input circuit 10 looked of audio signal testing circuit 24 1 ends electrically connect, this video signal detection circuit 22, and audio signal testing circuit 24 other ends respectively with processor control circuit 40 and control switching circuit 50 electric connections.
Each of the utility model is looked all corresponding simulation video/audio signal input channel 12 that electrically connects of audio frequency input circuit 10.The said audio output circuit 50 of looking is electrically connected with multichannel video/audio signal output channel 52.
Further, the processor control circuit 30 of the utility model also is electrically connected with man-machine interface 32, and this processor control circuit 30 also is electrically connected with host computer communication interface 34.As a kind of specific embodiment of the utility model, said host computer communication interface 34 can be RS232 communication interface or ethernet interface.Wherein, the RS232 communication interface connects simple, but needs host computer (PC) to provide corresponding software to control; Therefore; In order to adapt to the needs of current network development, the utility model preferably adopts ethernet interface, can conveniently be used for controlling through Ethernet.If host computer is built-in with web page server (Web Server), then the user need not use special-purpose software, and only using the IE browser of upper computer end is may command, is more convenient for user's use.
In the utility model, said processor control circuit 30 main completion each modules of control and circuit, man-machine interface 32 and the task of communicating by letter with host computer.This processor control circuit 30 is coordinated the work of each module and circuit; Read video signal detection circuit 22, and the output of audio signal testing circuit 24; According to the result of Video Detection and audio detection and the parameter setting of front panel, accomplish automatic shifting function.Simultaneously, communicate by letter with host computer for ease, also need pass through RS232 communication interface and host computer swap data, thereby reach the purpose of PC control.Said video signal detection circuit 22, and the audio signal testing circuit 24 main tasks of accomplishing input; Audio signal testing circuit 24 not only can detect having or not of audio signal; Detection threshold that can also internal regulation audio detection signal, thereby detection sensitivity that can the control audio signal.Said control switching circuit 40 is accomplished actual signal handoff functionality; In order to reach the demand on signal quality of broadcast system; Include a large amount of signal conditioning circuits in the control switching circuit 40 of the utility model, can optimize input signal, guarantee good signal output.
In sum; The utility model look the active and standby switch of audio frequency; It can be monitored broadcast video, audio signal parameters automatically, thereby reaches the function of automatic identification and switching, and it need not manual intervention; Can guarantee the reliability service of broadcast system, satisfy the harsh index request of broadcast system.
The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to the technical scheme and the technical conceive of the utility model, and all these changes and distortion all should belong to the protection range of the utility model accompanying Claim.
Claims (7)
1. look the active and standby switch of audio frequency for one kind; It is characterized in that, comprise several look the audio frequency input circuit, with several look the audio frequency input circuit corresponding electrically connect several look audio detection circuit module, processor control circuit, control switching circuit, and with the audio output circuit of looking of control switching circuit electric connection; Said each look and include a video signal detection circuit, and audio signal testing circuit in the audio detection circuit module; This video signal detection circuit, and corresponding with it the respectively audio frequency input circuit of looking of audio signal testing circuit one end electrically connect, this video signal detection circuit, and the audio signal testing circuit other end respectively with processor control circuit and control switching circuit electric connection.
2. the active and standby switch of audio frequency of looking as claimed in claim 1 is characterized in that, said each look all corresponding simulation video/audio signal input channel that electrically connects of audio frequency input circuit.
3. the active and standby switch of audio frequency of looking as claimed in claim 1 is characterized in that said processor control circuit is electrically connected with man-machine interface.
4. the active and standby switch of audio frequency of looking as claimed in claim 1 is characterized in that said processor control circuit is electrically connected with the host computer communication interface.
5. the active and standby switch of audio frequency of looking as claimed in claim 4 is characterized in that said host computer communication interface is RS232 communication interface or ethernet interface.
6. the active and standby switch of audio frequency of looking as claimed in claim 1 is characterized in that, includes signal conditioning circuit in the said control switching circuit.
7. the active and standby switch of audio frequency of looking as claimed in claim 1 is characterized in that, the said audio output circuit of looking is electrically connected with multichannel video/audio signal output channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203769722U CN202353676U (en) | 2011-10-08 | 2011-10-08 | AV (audio/video) host and backup switcher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203769722U CN202353676U (en) | 2011-10-08 | 2011-10-08 | AV (audio/video) host and backup switcher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353676U true CN202353676U (en) | 2012-07-25 |
Family
ID=46542632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203769722U Expired - Fee Related CN202353676U (en) | 2011-10-08 | 2011-10-08 | AV (audio/video) host and backup switcher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124333A (en) * | 2012-12-27 | 2013-05-29 | 北京恒泰实达科技股份有限公司 | Hot standby device and visualization service device comprising same |
-
2011
- 2011-10-08 CN CN2011203769722U patent/CN202353676U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103124333A (en) * | 2012-12-27 | 2013-05-29 | 北京恒泰实达科技股份有限公司 | Hot standby device and visualization service device comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201945879U (en) | Electrical fire monitor for automatic switching of CAN (controller area network) communication and RS485 communication | |
| CN106535062A (en) | Dante digital audio processing method, system and device based on DSP | |
| CN202353676U (en) | AV (audio/video) host and backup switcher | |
| CN102799114A (en) | Signal conditioning equipment | |
| CN103944659A (en) | Digital amplifier server based on public broadcasting system | |
| CN103107508A (en) | Insulation monitoring and protecting control device and method for multichannel underwater motor power supply loop | |
| CN204360158U (en) | A kind of intelligent PDU system | |
| CN209390022U (en) | Audio-frequency power amplifier and broadcast system | |
| CN205123925U (en) | Many pictures spectral analysis monitored control system | |
| CN204884144U (en) | Industry near field data acquisition system | |
| CN204305340U (en) | A kind of power amplifier operation control system | |
| CN203734748U (en) | Standby circuit of TV set and TV set | |
| CN102761710A (en) | Audio/video intelligent switcher | |
| CN105657228B (en) | The electric power system and method for supplying power to of SDI patterns | |
| CN105620515A (en) | Railway signal power source remote monitoring system | |
| CN204697177U (en) | A kind of automatic switching control circuit of multi-channel video monitor | |
| CN103746450A (en) | Monitoring system of integrated power equipment | |
| CN107483847A (en) | A kind of video distributor | |
| CN206060923U (en) | A kind of intelligent instructor in broadcasting's equipment | |
| CN208314077U (en) | A kind of intelligent capacitor automatization test system | |
| CN106888396B (en) | Separated television control circuit and method and separated television | |
| CN202795007U (en) | Multi-channel temperature and humidity monitor | |
| CN105786144A (en) | Processor multi-power management control device, system and method | |
| CN204669553U (en) | A kind of supervising device for digital TV transmitter | |
| CN205921360U (en) | Anti - control circuit who send device of power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141008 |
|
| EXPY | Termination of patent right or utility model |