CN2681494Y - A video gateway - Google Patents
A video gateway Download PDFInfo
- Publication number
- CN2681494Y CN2681494Y CN200420024285.4U CN200420024285U CN2681494Y CN 2681494 Y CN2681494 Y CN 2681494Y CN 200420024285 U CN200420024285 U CN 200420024285U CN 2681494 Y CN2681494 Y CN 2681494Y
- Authority
- CN
- China
- Prior art keywords
- video
- sopc
- gateway
- chip
- output
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- ATHVAWFAEPLPPQ-VRDBWYNSSA-N 1-stearoyl-2-oleoyl-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/CCCCCCCC ATHVAWFAEPLPPQ-VRDBWYNSSA-N 0.000 claims abstract 10
- 238000006243 chemical reaction Methods 0.000 claims description 5
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 241000276457 Gadidae Species 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000007906 compression Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013144 data compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
The utility model relates to a video gateway which comprises analog video signal inlets, outlets for outputting video stream signals fitting the network transmission protocol and a gateway for of outputting digital video signals of the video gateway which is composed of an A/D converter, a programmable system chip SOPC and a DSP chip, wherein the analog video signal inlets are connected with the input terminals of the A/D converter of which the output terminals are connected with the programmable system chip SOPC. The DSP chip for making corresponding MPEG-4 cods is connected with the control end and the data port of the SOPC chip. The data output terminals of the DSP chip are connected back to the programmable system chip SOPC of which the output ports are used as the output terminals of the gateway. The utility model has the characteristics of advanced technology, high integration level and convenient system upgrading. The utility model can be used in all aspects, such as multimedia individual users, remote monitoring system, etc., and is conveniently and flexibly used.
Description
One, technical field
The utility model relates to a kind of video gateway, especially adopts the video gateway of MPEG-4 coding and programmable system on chip chip SOPC technology.
Two, background technology
Video gateway is based on the digitizer of network, and it mainly is to realize the remote transmission of monitoring image and the Long-distance Control of picture pick-up device.Video gateway is accepted the analog video signal that common camera transmits by the video input port, and through digital processing and data compression, output meets the digital video signal stream of the network transmission protocol; Can be widely used in every field such as video conference, traffic monitoring, remote teaching, tele-medicine, residential quarters and bank's security protection, economic benefit and social benefit are huge.
Existing video gateway equipment adopts the MPEG-II coding module mostly and designs based on the Network Transmission of the PCB level of flush bonding processor and control module etc.Compare the MPEG-4 coding techniques, the MPEG-II technology all has deficiency in flexibility, interactivity, fault-tolerance, extensibility various aspects.Based on the PCB level design limit of flush bonding processor the integrated level and the reliability of system further improve, the volume of system further reduces, power consumption further reduces.
Three, summary of the invention
The purpose of this utility model is: adopt current up-to-date MPEG-4 video coding technique at video gateway, improve video encoding quality, reduce the video data volume after encoding; Adopt programmable system on chip chip (SOPC) technology to improve the integrated level and the reliability of device, reduce system power consumption, reduce the volume of system.Hardware components mostly is programming device in addition, for later system upgrade provides a good hardware platform.
Solution of the present utility model: a kind of video gateway, comprise that analog video signal inlet and output meet the video stream signal export mixes of the network transmission protocol, other is provided with AD converter, programmable chip system SOPC and dsp chip constitute the gateway of the digital video signal output of video gateway, the analog video signal inlet connects the input of AD converter, the output of AD converter connects programmable chip system SOPC, the dsp chip of making corresponding M PEG-4 coding connects the control end and the FPDP of SOPC chip, tieback is to programmable chip system SOPC again for the data output end of dsp chip, and the output port of programmable chip system SOPC is the output of gateway.
Video data AD conversion chip adopts SAA7114H, and this chip can carry out digitlization with six road analog video signals; The MPEG-4 technology realizes adopting dsp chip to realize, specifically adopts the high speed and fixed-point digital signal processor TMS320C6202 of company of Texas Instrument (TI).The SOPC chip adopts the XC2VP7 of the Virtex-II Pro series of Xilinx company, wherein seamless 32 RISC stone PowerPc405 and many gigabits of the RocketIOTM transceiver of having embedded.
The analog video signal that front-end camera collects is in video AD chip SAA7114H input SOPC, and the view data that obtains CIF or QCIF, 4: 2: 0 forms is handled in arrangement through SOPC; Then data send SOPC is independently finished video data by dsp chip MPEG-4 coding to; Then coded data is passed to SOPC by the main frame mouth HPI of DSP again; Realize packing, the transmission of MPEG-4 video code flow at last according to the network transmission protocol by SOPC.Control to the front end platform camera also realizes by the SOPC chip.
Characteristics of the present utility model are: advanced technology, and the integrated level height, system upgrade is convenient, can be used for various aspects such as multimedia personal user, long distance control system, and is easy to use flexible.Only need access network to realize remote image is monitored in client.
Four, description of drawings
Fig. 1 is the utility model structured flowchart
Fig. 2 is the internal logic line map of the utility model core SOPC:
Five, embodiment
This video gateway is a digitized visual remote transmission and control appliance, by forming based on the MPEG-4 video encoding module of DSP with based on the Network Transmission and the control module of SOPC platform.
The structure chart of system such as Fig. 1, the i.e. structure chart of video gateway
SAA7114H is the video conversion chip, can connect the input of No. 6 video cameras at most, with PAL, and the decoding of format signals such as NTSC and SECAM, process AD conversion obtains meeting the digital television signal of ITU-601/JTU-656 standard again.After the image information process SAA7114H digitlization, data flow in the programmable chips (SOPC) and do various preliminary treatment, as: remove noise, conversion picture resolution etc.Subsequently the data of putting in order are deposited among the FIFO of SOPC.Data are taken away from FIFO through SOPC by DSP, and made corresponding M PEG-4 coding.The MPEG-4 algorithm provides the video coding of content-based, interactively, high compression ratio, general-purpose accessing ability and high fault tolerance for multi-media communication.SOPC is passed in data output after will being encoded by DSP HPI mouth at last.SOPC includes Embedded, a real-time (SuSE) Linux OS (processor is PowerPC405), meets the digital video signal stream of the network transmission protocol by operating system output, and delivers on the net and transmit.The live image of video gateway can reach per second 25 frames (QCIF, Real Time Compression speed CIF) and higher compression ratio; The image of CIF form is compressible to＜200kbps.
See the internal logic structure figure of Fig. 2 SOPC:
Video gateway can be distributed an IP address (can be dynamic, also can fix) in advance in actual applications.
Video data is to transmit with the form of Streaming Media on network, is a kind of technology of transmitting at real-time multimedia data specially, can effectively improve network transmission efficiency, guarantees real-time acceptance image and the data of user.This video gateway can adopt different protocol packing to send respectively according to transmission requirement, utilize 10/100BASE-TX Ethernet controller to send then.Wherein host-host protocols such as TCP, IP, HTTP are used to transmit control signal etc.; UDP, RTP, RTCP, RSVP, RTSP etc. are used for the agreement of Streaming Media, solve the transmission real time video data.Not only can transmit control, also can be embedded in other Network Transmission control system our encoded video data stream.
If directly visit this video gateway by the web browser, just webpage that the user sees, and the operation meeting to video gateway is explained execution by the browser shell script on the backstage on this webpage.If browser lacks broadcast and controls required shell script and control, inquire then whether the user downloads special software and installation from video gateway.
Claims (4)
1, a kind of video gateway, comprise that analog video signal inlet and output meet the video stream signal export mixes of the network transmission protocol, it is characterized in that being provided with AD converter, programmable chip system SOPC and dsp chip constitute the gateway of the digital video signal output of video gateway, the analog video signal inlet connects the input of AD converter, the output of AD converter connects programmable chip system SOPC, the dsp chip of making corresponding M PEG-4 coding connects the control end and the FPDP of SOPC chip, tieback is to programmable chip system SOPC again for the data output end of dsp chip, and the output port of programmable chip system SOPC is the output of gateway.
2,, it is characterized in that adopting TITMS320C6202 to realize video coding MPEG-4 and adopt the remote transmission of programmable chip system XC2VP7 realization monitoring image and the Long-distance Control of picture pick-up device by the described video gateway device of claim 1.
3,, it is characterized in that programmable chip system SOPC is the XC2VP7 type by the described video gateway device of claim 1.
4,, it is characterized in that video data AD conversion chip adopts SAA7114H by the described video gateway device of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420024285.4U CN2681494Y (en) | 2004-01-19 | 2004-01-19 | A video gateway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420024285.4U CN2681494Y (en) | 2004-01-19 | 2004-01-19 | A video gateway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2681494Y true CN2681494Y (en) | 2005-02-23 |
Family
ID=34606882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200420024285.4U Expired - Fee Related CN2681494Y (en) | 2004-01-19 | 2004-01-19 | A video gateway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2681494Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101790093A (en) * | 2010-03-16 | 2010-07-28 | 山东大学 | Device and method for implementation of AVS video decoding by using SOPC |
| CN101707698B (en) * | 2009-11-06 | 2012-02-22 | 中兴通讯股份有限公司 | Video monitoring system and control method thereof |
-
2004
- 2004-01-19 CN CN200420024285.4U patent/CN2681494Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707698B (en) * | 2009-11-06 | 2012-02-22 | 中兴通讯股份有限公司 | Video monitoring system and control method thereof |
| CN101790093A (en) * | 2010-03-16 | 2010-07-28 | 山东大学 | Device and method for implementation of AVS video decoding by using SOPC |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103581712B (en) | Multi-protocol video playing method and system based on mobile terminal | |
| CN103647954B (en) | Mobile video monitor system based on 3G channels Yu intelligent terminal | |
| CN102905165B (en) | Video networking service front-end computer | |
| CN102131084A (en) | RTMP (Real Time Messaging Protocol) pushing device and method for audio/video streaming media | |
| CN101282454A (en) | Video communication system based on IP set-top box | |
| WO2013117038A1 (en) | Video multi-screen sharing method and system for realizing same | |
| CN101472132A (en) | Television set with visual telephone function | |
| WO2014161402A2 (en) | Distributed video conference method, system, terminal, and audio-video integrated device | |
| CN102158690A (en) | Remote multichannel real-time video monitoring system | |
| CN200966069Y (en) | A digital family intelligent gateway | |
| CN1474540A (en) | Multiple mode real-time multimedia interaction system for long distance teaching | |
| CN103581695B (en) | System and method for achieving access of mobile terminal to global eye | |
| CN1941901A (en) | Monitoring system and method | |
| CN201805504U (en) | Remote audio-video monitoring system | |
| CN2681494Y (en) | A video gateway | |
| CN107071356A (en) | A kind of multimedia optimization server and its video information processing method | |
| CN201252612Y (en) | Video conferencing system | |
| CN109640030A (en) | A kind of audio-video peripheral expansion device and method of video conferencing system | |
| CN101567698A (en) | Driving method of encoder hardware and core control system | |
| CN2586306Y (en) | Family gate | |
| KR100392193B1 (en) | Multiple web camera server system | |
| CN200980097Y (en) | A bidirectional adapter and return system of digital television signal with such bidirectional adapter | |
| CN201001170Y (en) | Network video monitor terminal | |
| CN201699878U (en) | Video processing device | |
| CN106454276A (en) | Audio and video integration device and integrated video monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |