CN207978052U - A kind of OPS interfaces audio-video converter - Google Patents
A kind of OPS interfaces audio-video converter Download PDFInfo
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- CN207978052U CN207978052U CN201820522330.0U CN201820522330U CN207978052U CN 207978052 U CN207978052 U CN 207978052U CN 201820522330 U CN201820522330 U CN 201820522330U CN 207978052 U CN207978052 U CN 207978052U
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- high definition
- sdi
- ops
- audio
- interfaces
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Abstract
The utility model provides a kind of OPS interfaces audio-video converter, including：High definition SDI photoelectric conversion modules, high definition SDI decoder modules, high definition HDMI coding modules, microprocessor control module and OPS interfaces；The high definition SDI photoelectric conversion modules, high definition SDI decoder modules, high definition HDMI coding modules are connect with the OPS interfacing orders；The microprocessor control module is connect with the high definition SDI photoelectric conversion modules, high definition SDI decoder modules and high definition HDMI coding modules respectively；The high definition SDI decoder modules include high definition SDI electric signal input interfaces；The OPS interfaces include power interface, audio-video interface and control signaling interface.OPS interface audio-video converters extend video signal transmission distance, expand the application range of SDI vision signals, display terminal can be embedded in, it is combined into one with it, it realizes power supply, display simultaneously by OPS interfaces, simplifies the connection structure of system, improve integrated level and stability, facilitate installation or dismounting, reduces product design, installation, maintenance cost.
Description
Technical field
The utility model is related to a kind of audio-video signal processing units, and in particular to a kind of to be embedded in display terminal
OPS interface audio-video signal conversion equipments.
Background technology
Serial digital interface (SDI) transmission mode is because its uncompressed image is undistorted, low delay, fine definition, transmission distance
From it is remote the advantages that, be widely used in security protection, broadcast industry, and gradually expand to the industries such as high ferro, subway.But SDI is broadcast electricity
Depending on the prevailing transmission interface of the high-definition program signalling arrangement of industry, only the Professional display monitor material in broadcasting and TV field is supported, and price
Costliness, common display terminal (including but not limited to television set, monitor, projecting apparatus, electronic whiteboard etc.) are not supported the interface, are needed
Video converter is equipped with to receive sdi signal, and sdi signal is converted into the vision signal of display terminal support.With meter
Various novel video coffrets continuously emerge in the high speed development of calculation machine technology and video processing technique, as high-definition digital is shown
Interface (DP), high-definition media interface (HDMI) etc., but these interfaces are all external video interfaces.It is existing to receive SDI
Video converter and the connection of display terminal be also all based on the above external interface.The interface does not have locking function, at certain
It is also easy to produce the phenomenon that connection is unreliable, cable falls off in the practical application of a little particular surroundings, causes video to show abnormal, is influenced
The reliability of system operation.In addition video converter is needed as an autonomous device using the form for being placed outside display terminal
It individually powers and independently installed, display is individually separated with control, is not easy installation and deployment, cable is complicated.Therefore it is asked for solution is above
Topic, need to integrate video converter and display terminal.
Open pluggable specification (OPS) is one of the hot spot technology that display industry most attracts people's attention in recent years, is a kind of
Can by display system or converter by it is a kind of it is pluggable in a manner of easily, study plot be integrated to display terminal, power supply (DC+ is provided
12V to DC+19V), display interface (DVI-D/TMDS/DP), audio, the interfacings such as USB, UART and multiple control signal.
OPS specifications have easy to install, easy care, easy upgrading, easy deployment, reduce line, connect the advantages such as reliable and saving space.Cause
This, the appearance of OPS platforms allows the integrated solution of video+audio+transmission+control to become possible.
Utility model content
It is connect by external interface with display terminal for video converter of the existing technology, easily causing connection can not
It leans on, the problem of cable falls off, and audio-video converter need to individually power, the utility model, which provides one kind, closing two with display terminal
For one OPS interface audio-video converters.Fixed by OPS interfaces and display terminal casing, become one it is close-connected whole
Body, to solve the relevant issues that common cable connection transmission HDMI signals are encountered；And omitting external power supply changeover device, it is larger
Reduce cost, reduce power cable connection.
The technical solution adopted in the utility model is as follows：
The utility model provides a kind of OPS interfaces audio-video converter, and the audio-video converter includes：High definition SDI
Decoder module, high definition HDMI coding modules, microprocessor control module, control signaling module and OPS interfaces；The high definition SDI
Decoder module, the high definition HDMI coding modules are connect with the OPS interfacing orders；The microprocessor control module respectively with
The high definition SDI decoder modules, high definition HDMI coding modules are connected with the control signaling module；The control signaling module with
The OPS interfaces connection；The high definition SDI decoder modules include high definition SDI electric signal input interfaces；The OPS interfaces include
Power interface, audio-video interface and control signaling interface.
Further, the high definition SDI decoder modules, high definition HDMI coding modules, microprocessor control module include electricity
Source chip.
The control signaling module includes installation condition test side, working condition test side, switching on and shutting down signal control terminal.
The OPS interfaces include DVI/TMDS/DP video interfaces and left and right acoustic channels audio interface.
The OPS interfaces further include USB interface and UART interface.
Preferably, the OPS interfaces audio-video converter further includes DA audio conversion modules, and the high definition SDI decodes mould
Block, the DA audio conversion modules are connect with the OPS interfacing orders.
Preferably, the OPS interfaces audio-video converter further includes high definition sdi signal photoelectric conversion module, the high definition
Sdi signal photoelectric conversion module is linked in sequence with the high definition SDI decoder modules, and connects with the microprocessor control module
It connects；The high definition sdi signal photoelectric conversion module includes high definition SDI optical signal input interfaces.The high definition SDI optical signals input
Interface uses SFP package LC interfaces.
Preferably, the OPS interfaces audio-video converter further includes that SDI electric signal rings go out module, the high definition SDI solutions
Code module goes out module with the SDI electric signals ring and is linked in sequence, and it includes SDI electric signal outputs that the SDI electric signals ring, which goes out module,
Interface, it includes cable actuated circuit that the sdi signal ring, which goes out module,.
Further, the DA audio conversion modules, the high definition sdi signal photoelectric conversion module and the SDI telecommunications
It includes power supply chip that number ring, which goes out module,.
The beneficial effects of the utility model are as follows：
The utility model transmits sdi signal using optical fiber, and (1) thoroughly solves high-definition video signal limited transmission distance
Problem reduces cost；(2) optical transmission loss is small, and the bit error rate is low, greatly enhances the ability of electromagnetism interference；(3) adaptive
It should support from SD to 3G SDI various video formats；(4) converter is embedded into display terminal, converter and display terminal
It is combined into one, is fixed by OPS interfaces and casing, become a close-connected entirety, to thoroughly solve ordinary lines
The relevant issues that cable connection transmission HDMI signals are encountered；(5) external power supply converter is eliminated, larger reduces cost,
Reduce power cable connection；(6) OPS possesses the interfaces such as abundant power supply, display, UART, control, is conducive to subsequent video and turns
The function upgrading of parallel operation is regenerated.
Description of the drawings
Fig. 1 is the structural schematic diagram of OPS interfaces audio-video converter provided by the utility model.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing：
As shown in Figure 1, the utility model provides a kind of OPS interfaces audio-video converter, including：High definition SDI decodes mould
Block, high definition HDMI coding modules, microprocessor control module, control signaling module and OPS interfaces；The high definition SDI decodes mould
Block, the high definition HDMI coding modules are connect with the OPS interfacing orders；The microprocessor control module respectively with the height
Clear SDI decoder modules, high definition HDMI coding modules are connected with the control signaling module；The control signaling module with it is described
OPS interfaces connect；The high definition SDI decoder modules include high definition SDI electric signal input interfaces；The OPS interfaces include power supply
Interface, audio-video interface and control signaling interface.Further, the high definition SDI decoder modules, high definition HDMI coding modules,
Microprocessor control module includes power supply chip；The control signaling module packet installation condition test side, working condition test side,
Switching on and shutting down control signal end；The OPS interfaces include DVI/TMDS/DP video interfaces and left and right acoustic channels audio interface.The OPS
Interface further includes USB interface and UART interface.
In addition, the OPS interfaces audio-video converter, can also include DA audio conversion modules, the high definition SDI decodings
Module, the DA audio conversion modules are connect with the OPS interfacing orders.
The OPS interfaces audio-video converter can also include high definition sdi signal photoelectric conversion module, the high definition SDI
Signal photoelectric conversion module is linked in sequence with the high definition SDI decoder modules, and is connect with the microprocessor control module；Institute
It includes high definition SDI optical signal input interfaces to state high definition sdi signal photoelectric conversion module.The high definition SDI optical signal input interfaces
Using SFP package LC interfaces.
The OPS interfaces audio-video converter, can also go out module including SDI electric signal rings, and the high definition SDI decodes mould
Block goes out module with the SDI electric signals ring and is linked in sequence, and it includes SDI electrical signal output interfaces that the SDI electric signals ring, which goes out module,
It includes cable actuated circuit that the sdi signal ring, which goes out module,.
The DA audio conversion modules, the high definition sdi signal photoelectric conversion module and the SDI electric signals ring depanning
Block includes power supply chip.
In the present embodiment,
(1) the high definition SDI optical signals received are converted into high-speed-differential to letter by the high definition SDI photoelectric conversion modules
High definition SDI decoder modules are given in number output；Or the high definition SDI decoder modules can directly receive high definition SDI electric signals.This reality
With novel used photoelectric conversion technique, it can be tested by SDI morbid state codes, when transmitting irregular bit rate signal, be avoided
There is the problems such as splashette, blank screen, blue screen, reaches higher image quality requirement.In order to corresponding with general light sdi signal source,
The SFP of 3G rates can be selected to receive optical module.Optical signal input uses SFP package LC interfaces, wavelength 1310nm to receive spirit
Sensitivity is up to -20dBm.
(2) high-speed serial signals are first converted to parallel signal by the high definition SDI decoder modules, then are decoded, decoding
After obtain original parallel video data and IIS audio datas, be sent to high definition HDMI coding modules, realize the output of HDMI signals,
IIS audio signals are sent into DA audio conversion modules simultaneously, are exported after enhancing signal-to-noise ratio, power amplification.
(3) high-speed serial signals all the way of the high definition SDI decoder modules output, need cable actuated circuit, described
SDI electric signal rings go out pre-equalization process and the signal amplification enhancing processing that module completes the sdi signal exported to upper level, complete
SDI electric signal rings go out.
The SDI vision signals output and input meet SMPTE 425M, SMPTE 424M, SMPTE 292M, SMPTE259M
Consensus standard.SDI interface rate 270Mbps, 1485Mbps, 2970Mbps, resolution ratio highest support 1920*1080 50p/
All video formats from SD to high definition are supported in 60p, perfection.
(4) the original parallel video flowing that the high definition HDMI coding modules obtain the high definition SDI decoder modules is converted
For HDMI signal streams, while the audio stream of IIS formats is embedded in HDMI signal streams, obtains the multiplexed HDMI signals of audio and video
Afterwards, it is exported by OPS interfaces after the pre-equalization process of chip interior completion signal and signal amplification enhancing processing.HDMI outputs connect
Mouth meets HDMI Specification 1.4a standards and CEA-861-D standards, and highest supports 1920*1080 50p/60p to regard
Frequency format.
(5) the control signaling module includes installation condition test side (PB_DET), working condition test side (PWR_
STATUS), switching on and shutting down control signal end (PS_ON) etc. controls signaling module.
1、PB_DET：This pin is installation condition test side, and GND is met in OPS Interface Video converter boards, aobvious
Showing in terminal board, this pin is in the high level of+3.3V, in video converter insertion display terminal, the PB_DET of the two
To even, pin level is dragged down, display terminal detects that low level will export DC+12V to OPS interfaces, is video converter
Power supply.
2、PS_ON：This pin is opened for pluggable signal, and when microprocessor detects that the pin is low level, software is multiple
Bit microprocessor.
3、PWR_STATUS：The power supply status indication signal or power supply normal condition of pluggable module, this pin are OC,
Microprocessor I/O port is accessed by conversion circuit, processor controls pin output high level, indicates that power supply is normal, export low electricity
Flat expression is not powered on.
(6) the OPS interface modules include power interface, audio-video interface and control signaling interface, external source display terminal
By power interface power supply is provided for OPS audio-video converters；OPS audio-video converters are incited somebody to action by the audio-video interface
To HDMI signals export and give external source display terminal.The OPS interfaces provide DVI/TMDS/DP video interfaces and left and right acoustic channels
Audio interface.
In addition, OPS interfaces additionally provide multigroup USB interface, one group of UART interface provides possibility for later system upgrade
Property.
(7) power supply management
The high definition SDI decoder modules, high definition HDMI coding modules, microprocessor control module, DA audio conversion modules,
It includes power supply chip that high definition sdi signal photoelectric conversion module and SDI electric signal rings, which go out module,.OPS Interface Videos converter is from aobvious
After showing that terminal obtains 12V power supplys, to above each function module power supply, disparate modules may need different voltage, need
Independent, differentiated control.
1,12V power supplys are respectively converted into the power supply of+3.3V and+5V with two power supply chips, maximum output current is
5A。
2 ,+the 3.3V that the first order obtains is to microprocessor and interlock circuit, DA audio conversion circuits, simultaneously+3.3V conducts
The input of one power supply chip conversion circuit provides required+1.8V for HDMI Signal coding circuits, converts and enables pin by micro-
Processor controls.
3 ,+the 5V that the first order obtains powers to analogue audio frequency amplifying circuit, and+5V does two level by two power supply chips simultaneously
Conversion obtains the OPTICAL_3.3V and SDI_3.3V of the second level, respectively photoelectric conversion module, sdi signal decoding/sdi signal
Ring goes out module for power supply.SDI_3.3V carries out third level conversion, provides sdi signal decoder module required+1.2V power supplys, owns
Power supply chip conversion enables pin and is controlled by microprocessor.
(7) microprocessor control module
The initialization of complete each function module of paired systems, configures the register and real time monitoring of related chip, it is ensured that production
Product are reliable and stable.
The above, only the embodiments of the present invention not make limit in any form to the utility model
System；It should be pointed out that for those skilled in the art, without departing from the principle of this utility model,
Several improvements and modifications can also be made, these improvements and modifications should also regard the scope of protection of the utility model.
Claims (9)
1. a kind of OPS interfaces audio-video converter, which is characterized in that including：High definition SDI decoder modules, high definition HDMI encode mould
Block, microprocessor control module, control signaling module and OPS interfaces；The high definition SDI decoder modules, the high definition HDMI are compiled
Code module is connect with the OPS interfacing orders；The microprocessor control module respectively with the high definition SDI decoder modules, institute
High definition HDMI coding modules are stated to connect with the control signaling module；The control signaling module is connect with the OPS interfaces；Institute
It includes high definition SDI electric signal input interfaces to state high definition SDI decoder modules；The OPS interfaces include power interface, audio-video interface
With control signaling interface.
2. OPS interfaces audio-video converter according to claim 1, the high definition SDI decoder modules, high definition HDMI codings
Module and microprocessor control module include power supply chip.
3. OPS interfaces audio-video converter according to claim 1, the control signaling module includes installation condition detection
End, working condition test side, switching on and shutting down signal control terminal.
4. OPS interfaces audio-video converter according to claim 1, the OPS interfaces further include that USB interface and UART connect
Mouthful.
5. any OPS interfaces audio-video converter according to claim 1-4, which is characterized in that further include DA audio conversions
Block is changed the mold, the high definition SDI decoder modules, the DA audio conversion modules are connect with the OPS interfacing orders.
6. OPS interfaces audio-video converter according to claim 5, which is characterized in that further include high definition sdi signal photoelectricity
Conversion module, the high definition sdi signal photoelectric conversion module are linked in sequence with the high definition SDI decoder modules, and with it is described micro-
Processor control module connects；The high definition sdi signal photoelectric conversion module includes high definition SDI optical signal input interfaces.
7. OPS interfaces audio-video converter according to claim 6, the high definition SDI optical signal input interfaces use SFP
Package LC interface.
8. OPS interfaces audio-video converter according to claim 6, which is characterized in that further include SDI electric signal ring depannings
Block, the high definition SDI decoder modules go out module with the SDI electric signals ring and are linked in sequence, and the SDI electric signals ring goes out module packet
Electrical signal output interface containing SDI, it includes cable actuated circuit that the sdi signal ring, which goes out module,.
9. OPS interfaces audio-video converter according to claim 8, the DA audio conversion modules, high definition SDI letters
It includes power supply chip that number photoelectric conversion module and the SDI electric signals ring, which go out module,.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820522330.0U CN207978052U (en) | 2018-04-13 | 2018-04-13 | A kind of OPS interfaces audio-video converter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820522330.0U CN207978052U (en) | 2018-04-13 | 2018-04-13 | A kind of OPS interfaces audio-video converter |
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| CN201820522330.0U Expired - Fee Related CN207978052U (en) | 2018-04-13 | 2018-04-13 | A kind of OPS interfaces audio-video converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495708A (en) * | 2018-11-15 | 2019-03-19 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of disease-resistant state code SDI vision signal optical fiber transmission method |
| CN113556592A (en) * | 2020-04-24 | 2021-10-26 | 深圳市中兴系统集成技术有限公司 | Method for realizing bidirectional control display terminal of play control system |
-
2018
- 2018-04-13 CN CN201820522330.0U patent/CN207978052U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109495708A (en) * | 2018-11-15 | 2019-03-19 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of disease-resistant state code SDI vision signal optical fiber transmission method |
| CN109495708B (en) * | 2018-11-15 | 2020-10-30 | 中国航空工业集团公司洛阳电光设备研究所 | Anti-disease code SDI video signal optical fiber transmission method |
| CN113556592A (en) * | 2020-04-24 | 2021-10-26 | 深圳市中兴系统集成技术有限公司 | Method for realizing bidirectional control display terminal of play control system |
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| 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: 20181016 |