CN102572361B - High-resolution remote video transmitting and encoding equipment - Google Patents
High-resolution remote video transmitting and encoding equipment Download PDFInfo
- Publication number
- CN102572361B CN102572361B CN201210018200.0A CN201210018200A CN102572361B CN 102572361 B CN102572361 B CN 102572361B CN 201210018200 A CN201210018200 A CN 201210018200A CN 102572361 B CN102572361 B CN 102572361B
- Authority
- CN
- China
- Prior art keywords
- circuit
- hdmi
- dvi
- tmds
- converts
- 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
Abstract
The invention discloses high-resolution remote video transmitting and encoding equipment, which is characterized by comprising a video acquisition instruction decoding circuit, a scaling circuit, a transition minimized differential signaling (TMDS) acquisition and high-definition multimedia interface (HDMI)/digital video interface (DVI) conversion circuit, a microprogrammed control unit (MCU) control circuit and more than one RS485-to-RS232 conversion circuit, wherein the integrated output port of the video acquisition instruction decoding circuit is connected with the integrated input port of the scaling circuit; the integrated output port of the scaling circuit is connected with the integrated input port of the TMDS acquisition and HDMI/DVI conversion circuit with the RS485-to-RS232 conversion circuit; the integrated output port of the TMDS acquisition and HDMI/DVI conversion circuit with the RS485-to-RS232 conversion circuit is connected with an RS485 and HDMI/DVI signal integrated input port of the RS485-to-RS232 conversion circuit through a cable; the control output of the MCU control circuit is connected with control inputs of the video acquisition instruction decoding circuit, the scaling circuit and the TMDS acquisition and HDMI/DVI conversion circuit with the RS485-to-RS232 conversion circuit; and if the number of the RS485-to-RS232 conversion circuits is more than two, each RS485-to-RS232 conversion circuit is connected in series with the cable through the RS485 and HDMI/DVI signal integrated output port and the RS485 and HDMI/DVI signal integrated input port. Compared with the prior art, the high-resolution remote video transmitting and encoding equipment has the advantages of multi-group video transmission, remote transmission and convenience in use and control.
Description
Technical field
The present invention relates to a kind of transmission of video coding techniques.
Background technology
Existing video transmission technologies, a cable can only transmit one group of video, while needing the many groups of transmission video, just needs multi-cable, needs the user of the many groups of transmission vision signal to bring very large inconvenience like this with regard to giving.And, restricted by signal attenuation, signal transmission distance is short, can not meet the requirement of long Distance Transmission.
Summary of the invention
Goal of the invention of the present invention is to provide an a kind of cable to transmit many groups high-resolution remote video transfer encoding equipment video, long transmission distance simultaneously.
The present invention realizes like this, comprise video acquisition instruction demoding circuit (Decode), pantograph ratio circuit (Scaling), the TMDS that converts RS485 circuit with RS232 to gathers and HDMI/DVI change-over circuit, MCU control circuit (central processing unit), more than one RS485 converts RS232 circuit to, the integrated output port of video acquisition instruction demoding circuit is connected with the integrated input port of pantograph ratio circuit, the integrated output port of pantograph ratio circuit gathers and is connected with the integrated input port of HDMI/DVI change-over circuit with the TMDS that converts RS485 circuit with RS232 to, the TMDS collection that converts RS485 circuit with RS232 to is connected with the integrated input port of HDMI/DVI signal with the RS485 that RS485 converts RS232 circuit to by cable with the integrated output port of HDMI/DVI change-over circuit, the control output of MCU control circuit and video acquisition instruction demoding circuit control inputs, pantograph ratio circuit control inputs, the TMDS collection that converts RS485 circuit with RS232 to is connected with HDMI/DVI change-over circuit control inputs, if RS485 converts RS232 circuit to while having more than two, each RS485 converts RS232 circuit to by RS485 and the integrated output port of HDMI/DVI signal, RS485 and the integrated input port of HDMI/DVI signal, cable is serially connected.During work, under the control of MCU control circuit, video is adopted circuit to comprising HDMI, Y.Pb.Pr, VGA, S-Video, the signals such as CVBS are inputted by integrated input port, after pantograph ratio circuit (Scaling), exportable 1920 × 1080 full HD TMDS signals gather and HDMI/DVI change-over circuit to the TMDS that converts RS485 circuit with RS232 to, if front end signal input is digital full HD signal, directly by converting to RS232, the TMDS of RS485 circuit gathers and the straight-through HDMI/DVI change-over circuit of the integrated input interface of TMDS of HDMI/DVI change-over circuit, if what collect is SD or analog signal, by the integrated input port input of pantograph ratio circuit (Scaling) times line, become 1920 × 1080 full HD TMDS signals to gather and HDMI/DVI change-over circuit to the TMDS that converts RS485 circuit with RS232 to, then, 1920 × 1080 full HD TMDS signals convert HDMI/DVI signal to by HDMI/DVI change-over circuit, simultaneously, MCU control circuit provides a RS232 address signal to converting TMDS collection and the HDMI/DVI change-over circuit of RS485 circuit with RS232 to and converting RS485 signal to, this signal is together with HDMI/DVI signal, by the TMDS that converts RS485 circuit with RS232 to, gather and the integrated output port of HDMI/DVI change-over circuit, cable is connected with the integrated input port that RS485 converts RS232 circuit to, RS485 converts RS232 circuit to and converts RS485 signal to RS232 signal and by integrated output port, output to front end video equipment together with HDMI/DVI signal, video needs being shown by front end video equipment, audio reproducing out, simultaneously, RS485 signal is transported to another RS485 together with HDMI/DVI signal by RS485 and the integrated output port of HDMI/DVI signal and converts RS232 circuit to.The present invention is owing to 1920 × 1080 full HD TMDS signals being converted to HDMI/DVI signal cake together with being converted to RS485 signal by RS232 by integrated output port, cable transfer converts RS232 circuit to RS485, like this, transmission range is long, distance reaches 30 meters, and, a MCU control circuit (central processing unit) just can be controlled and multiplely convert the connected multiple different video contents of front end video equipment demonstration of RS232 circuit to from RS485, RS232 converts to after RS485 signal, can adopt twisted-pair feeder differential transfer, there is long transmission distance, antijamming capability is strong, load capacity is strong, can support nearly 256 station terminal equipment, guaranteeing under the prerequisite of video/audio quality, realized the long object apart from center-control, and, easy to use, use low cost of manufacture.
The present invention compared with the prior art, have a cable transmit simultaneously many groups video, long transmission distance, use, control advantage easily.
Accompanying drawing explanation:
Fig. 1 is circuit block diagram of the present invention.
Embodiment:
Now in conjunction with the accompanying drawings and embodiments the present invention is described in further detail:
As shown in the figure, the present invention includes video acquisition instruction demoding circuit (Decode) 1, pantograph ratio circuit (Scaling) 2, the TMDS that converts RS485 circuit 3 with RS232 to gathers and HDMI/DVI change-over circuit 4, MCU control circuit (central processing unit) 5, more than one RS485 converts RS232 circuit 6 to, with inputting HDMI, Y.Pb.Pr, VGA, S-Video, the integrated output port 1b of the video acquisition instruction demoding circuit 1 of the integrated input port 1a of the signals such as CVBS is connected with the integrated input port 2a of pantograph ratio circuit 2, integrated output port 2b with the pantograph ratio circuit 2 of SD or the integrated input port 2c of analog signal gathers and is connected with the integrated input port 4a of HDMI/DVI change-over circuit 4 with the TMDS that converts RS485 circuit 3 with RS232 to, the TMDS collection that converts RS485 circuit 3 with RS232 to is connected with the integrated input port 6a of HDMI/DVI signal with the RS485 that RS485 converts RS232 circuit 6 to by cable 7 with the integrated output port 4b of HDMI/DVI change-over circuit 4, the control output of MCU control circuit 5 and video acquisition instruction demoding circuit 1 control inputs, pantograph ratio circuit 2 control inputs, the TMDS collection that converts RS485 circuit 3 with RS232 to is connected with HDMI/DVI change-over circuit 4 control inputs, with RS232 convert to RS485 circuit 3 TMDS gather and HDMI/DVI change-over circuit 4 on be provided with the integrated input port 4c of digital full HD signal, if RS485 converts RS232 circuit 6 to while having more than two, each RS485 converts RS232 circuit 6 to by RS485 and the integrated output port 6c of HDMI/DVI signal, the integrated input port 6a of RS485 and HDMI/DVI signal, cable 7 is serially connected, RS485 converts RS232 circuit 6 to and converts RS485 signal to RS232 signal and by integrated output port 6b, output to front end video equipment 8 together with HDMI/DVI signal, video needs being shown by front end video equipment, audio reproducing out.
Here, what the master chip of video acquisition instruction demoding circuit (Decode) 1 adopted is that the model that stars at dawn semiconductor company produces is MST6M16JS-LF chip, the TMDS that converts RS485 circuit 3 to RS232 gather and HDMI/DVI change-over circuit 4 in TMDS signal receive and send chip to adopt the model of ITE company production be IT6263 chip, RS232 converts model that RS485 circuit 3 comprises the RS232 that receives and do level conversion MCU control circuit to be ADM2302 chip and to be SP3491 chip by the model that RS232 signal converts RS485 signal to, RS485 convert to RS232 circuit 6 master chip adopt be that model is SP3491 chip.
Claims (3)
1. high-resolution remote video transfer encoding equipment, it is characterized in that comprising video acquisition instruction demoding circuit, pantograph ratio circuit, the TMDS that converts RS485 circuit with RS232 to gathers and HDMI/DVI change-over circuit, MCU control circuit, the more than one circuit that RS485 is converted to RS232, the integrated output port of video acquisition instruction demoding circuit is connected with the integrated input port of pantograph ratio circuit, the integrated output port of pantograph ratio circuit gathers and is connected with the integrated input port of HDMI/DVI change-over circuit with the TMDS that converts RS485 circuit with RS232 to, the TMDS collection that converts RS485 circuit with RS232 to is connected with the integrated input port of HDMI/DVI signal with the RS485 of the circuit that RS485 is converted to RS232 by cable with the integrated output port of HDMI/DVI change-over circuit, the control output of MCU control circuit and video acquisition instruction demoding circuit control inputs, pantograph ratio circuit control inputs, the TMDS collection that converts RS485 circuit with RS232 to is connected with HDMI/DVI change-over circuit control inputs, if when the circuit that converts RS485 to RS232 has more than two, each circuit that converts RS485 to RS232 is by RS485 and the integrated output port of HDMI/DVI signal, RS485 and the integrated input port of HDMI/DVI signal, cable is serially connected.
2. high-resolution remote video transfer encoding equipment according to claim 1, it is characterized in that video acquisition instruction demoding circuit is provided with the integrated input port of HDMI, Y.Pb.Pr, VGA, S-Video, CVBS signal, pantograph ratio circuit is provided with SD or the integrated input port of analog signal, with RS232 convert to RS485 circuit TMDS gather and HDMI/DVI change-over circuit on be provided with the integrated input port of digital full HD signal.
3. high-resolution remote video transfer encoding equipment according to claim 1 and 2, it is characterized in that video acquisition instruction demoding circuit master chip adopt be stars at dawn semiconductor company produce model be MST6M16JS-LF chip, the TMDS that converts RS485 circuit to RS232 gather and HDMI/DVI change-over circuit in TMDS signal receive and send chip to adopt the model of ITE company production be IT6263 chip, RS232 converts model that RS485 circuit comprises the RS232 that receives and do level conversion MCU control circuit to be ADM2302 chip and to be SP3491 chip by the model that RS232 signal converts RS485 signal to, RS485 convert to RS232 circuit master chip adopt be that model is SP3491 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018200.0A CN102572361B (en) | 2012-01-20 | 2012-01-20 | High-resolution remote video transmitting and encoding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210018200.0A CN102572361B (en) | 2012-01-20 | 2012-01-20 | High-resolution remote video transmitting and encoding equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102572361A CN102572361A (en) | 2012-07-11 |
| CN102572361B true CN102572361B (en) | 2014-05-07 |
Family
ID=46416684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210018200.0A Expired - Fee Related CN102572361B (en) | 2012-01-20 | 2012-01-20 | High-resolution remote video transmitting and encoding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102572361B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103024333A (en) * | 2012-12-27 | 2013-04-03 | 中航(苏州)雷达与电子技术有限公司 | Long-distance video transmission method |
| CN106507139A (en) * | 2016-11-16 | 2017-03-15 | 深圳市捷视飞通科技股份有限公司 | Multi-path high-definition video multiplex display packing and device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612160Y (en) * | 2003-01-30 | 2004-04-14 | 深圳市洪迪实业有限公司 | Multi-path video and two-way data optical terminal device |
| CN201114511Y (en) * | 2007-10-12 | 2008-09-10 | 广州市天誉创高电子科技有限公司 | A digital media console |
| CN201965604U (en) * | 2010-12-20 | 2011-09-07 | 吕文政 | Multimedia input/output (I/O) self-service selection system of digital conference room |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100204842A1 (en) * | 2009-02-08 | 2010-08-12 | Atomic Energy Council-Institute Of Nuclear Energy Research | Central Monitor and Control Device for High-Concentration Photovoltaic System |
-
2012
- 2012-01-20 CN CN201210018200.0A patent/CN102572361B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2612160Y (en) * | 2003-01-30 | 2004-04-14 | 深圳市洪迪实业有限公司 | Multi-path video and two-way data optical terminal device |
| CN201114511Y (en) * | 2007-10-12 | 2008-09-10 | 广州市天誉创高电子科技有限公司 | A digital media console |
| CN201965604U (en) * | 2010-12-20 | 2011-09-07 | 吕文政 | Multimedia input/output (I/O) self-service selection system of digital conference room |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102572361A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206865570U (en) | Video processor | |
| CN104486576A (en) | Conversion system converting full-interface input signals to SDI output signals | |
| CN103702164A (en) | UHD (Ultra High Definition) signal transferring device and network STB (Set Top Box) | |
| CN102572361B (en) | High-resolution remote video transmitting and encoding equipment | |
| CN201467372U (en) | Digital high-definition optical transceiver | |
| CN202424901U (en) | High-definition long-distance video transmission coding device | |
| CN106878650B (en) | DVI to VGA video conversion device and method thereof | |
| CN103795994A (en) | Video image processing method and video image processing device | |
| CN205610845U (en) | Transmission device of high -definition audio and video signal | |
| CN103037222A (en) | Compression transmission device and method of parallel digital video signal | |
| CN104902194A (en) | Video/audio signal channel switching device | |
| CN202513993U (en) | Single-optical fiber high-definition multimedia interface (HDMI) signal transmission module | |
| CN204859376U (en) | SDI and HDMI conversion equipment | |
| CN210112162U (en) | Video processing module capable of realizing multi-channel video signal output and acquisition | |
| CN210958555U (en) | HDMI twisted-pair IP extender | |
| CN202632728U (en) | Multi-channel video signal ring-in/ring-out device | |
| CN212064205U (en) | HDMI signal extender | |
| CN202364224U (en) | Four-core optical fiber HDMI optical transceiver | |
| CN202551242U (en) | Novel multi-path multi-resolution video decoder | |
| CN202395871U (en) | Device capable of converting digital interactive interface for video and audio (DiiVA) signal into high definition multimedia interface (HDMI) signal | |
| CN203352693U (en) | Multi-channel 4K*2K signal input device | |
| CN202261584U (en) | Flat-panel television display screen compatible device | |
| CN104717440A (en) | LED transmitting card cascade interface | |
| CN201319460Y (en) | Multimedia outlet with multiple port inputs and single HDMI port output | |
| CN206442460U (en) | A kind of Portable HDMI video capture device based on FPGA |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20140507 Termination date: 20180120 |