CN101668209A - EPON video encoder - Google Patents
EPON video encoder Download PDFInfo
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- CN101668209A CN101668209A CN 200910152463 CN200910152463A CN101668209A CN 101668209 A CN101668209 A CN 101668209A CN 200910152463 CN200910152463 CN 200910152463 CN 200910152463 A CN200910152463 A CN 200910152463A CN 101668209 A CN101668209 A CN 101668209A
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Abstract
The invention discloses a video encoder, in particular to an EPON video encoder which adopts an EPON fiber access technology. The encoder comprises a video input module, a video compression coding module and an EPON ONU module, wherein, the video input module is used for inputting an analog video and carrying out A/D conversion; the video compression coding module is used for compressing and coding videos obtained by the video input module and encapsulating the videos after being compressed and coded into an IP packet signal; the EPON ONU module receives the IP packet signal sent by the videocompression coding module and completes EPON fiber access; and the output end of the video input module is connected with the input end of the video compression coding module, and the output end of the video compression coding module is connected with the input end of the EPON ONU module. The EPON video encoder of the invention can adapt to remote networking transmission and control requirements of large-scale video encoders, in particular to the remote networking transmission and the control requirements of high-definition encoders. The EPON video encoder not only has the functions of Ethernet access, also has the function of remote transmission of images through fibers.
Description
Technical field
The present invention relates to a kind of video encoder, especially a kind of employing EPON EPON fiber access technology video encoder.
Background technology
Existing video compression encoder mainly contains two classes: a class is the E1 video encoder, and another kind of is the IP video encoder.The E1 video encoder is the video flowing after the compression to be converted to the E1 signal carry out long-distance transmissions; The IP video encoder then is that the video flowing after the compression is packaged into the IP bag, and connects by the Ethernet of 10M/100M Ethernet interface with the outside, carries out long-distance transmissions by Ethernet then.
No matter be E1 video encoder or IP video encoder, they all need have external network (E1 transmission network or IP network) to transmit.So these encoders need be installed extra transmission equipment in the encoder back, so just cause system equipment and management all comparatively complicated.In addition, an outside sometimes independent IP network is difficult to ensure transmission quality, when jumbo video flowing, after especially high definition video steaming enters, is easy to cause the obstruction of IP network.
Summary of the invention
Technical problem to be solved by this invention provide the extensive video encoder of a kind of adaptation network at a distance the transmission and demand for control, especially network the at a distance transmission and the EPON video encoder of demand for control of high definition encoder, it not only has the Ethernet access function, has also possessed the function of carrying out the long-distance transmissions image by optical fiber simultaneously.
The present invention addresses the above problem the technical scheme that is adopted: this encoder is made up of video input module, video compression coding module and EPON ONU module, wherein
Video input module is used to import analog video and carries out the A/D conversion;
The video compression coding module is carried out compressed encoding and is packaged into IP bag signal the video that is obtained by video input module;
EPON ONU module receives the IP bag signal that is sent by the video compression coding module, and finishes the optical fiber access of EPON;
The output of video input module is connected with the input of video compression coding module, and the output of video compression coding module is connected with the input of EPON ONU module.
EPON ONU module of the present invention is made up of cpu system submodule, EPON MAC processing sub and uni interface submodule, cpu system submodule wherein, be used to monitor the configuring condition of the equipment that activates on all modules, and the state of supervision total interface, monitoring and execution are handled in real time, also handle the OAM(Operation Administration Maintenance) group simultaneously; EPON MAC processing sub is used to carry out EPON MAC access control, FEC verification and SERDES conversion; The uni interface submodule is used to finish the access of Ethernet and the conversion of EPON photosignal.
The present invention compared with prior art, has following beneficial effect: traditional video encoder, as networking at a distance, need extra transmission equipment support, as look switch, fiber optical transceiver etc., this has not only increased the cost of system, also increased the unreliability of system, for the HD video encoder, then, be difficult to the advantage of real performance high definition owing to be subjected to the restriction of transmission performance; EPON is a kind of fiber broadband access network technology, is mainly used in to realize FTTH, promptly solves the broadband access problem of family.This video encoder is creatively compiled the technology of separating to EPON technology and video compression and is combined, the integrated ONU module of EPON system in video encoder, filled up the market vacancy, make it not only have the video compression coding function, also possessed the ONU function in the EPON network, simplified the process that video encoder is networked at a distance and transmitted greatly, this video encoder can directly be connected with the OLT of EPON network, logically an EPON video encoder is exactly special ONU unit in the EPON network, can realize the remote fiber cluster of video encoder, and this networking is the EPON technology that adopts the broadband, this has increased transmission bandwidth greatly, even high definition IP video code flow can be arranged to more than the 20M, also can not influence the transmission performance of system, can give full play to the high definition advantage.
Description of drawings
Fig. 1 is total decorum structural representation of the present invention.
Fig. 2 is the structural representation of EPON ON module among the present invention.
Embodiment
Referring to Fig. 1, present embodiment is made up of video input module 1, video compression coding module 2 and EPON ONU module 3, the output of video input module 1 is connected with the input of video compression coding module 2, and the output of video compression coding module 2 is connected with the input of EPON ONU module 3.
Video compression coding module 2 adopts Leonardo da Vinci's series DSP chip of TI, and H.264 compressed encoding and IP that this chip can be finished ordinary sharpness or HD video seal dress.
EPON ONU module 3 is realized that by the ONU chip PAS6201 of a high conformability PAS6201 has integrated central processing unit (ARM922), medium access control (MAC) and and string and functions such as deserializer (SERDES), the network second layer (Layer 2), protocol conversion and packet buffer.PAS6201 reads the H.264 IP packet of compressed video from the video compression coding module, and sends in the EPON fiber optic network.
2 pairs of digital non-compressed images that obtained by video input module 1 of video compression coding module carry out compressed encoding, the compressed encoding form for H.264, MPEG2, MPEG4 or MJPEG, and be packaged into IP bag signal;
EPON ONU module 3 receives the IP bag signal that is sent by video compression coding module 2, and finishes the optical fiber access of EPON.Can directly be connected after the IP vision signal process EPON ONU module 3, realize the remote networking and the transmission of EPON video encoder with the optical fiber of EPON network
EPON ONU module 3 is made up of cpu system submodule 32, EPON MAC processing sub 31 and uni interface submodule 33, wherein:
Cpu system submodule 32 monitors the configuring condition of the equipment that activates on all modules, and the state of supervision total interface, monitoring and execution are handled in real time, also handle the OAM(Operation Administration Maintenance) group of IEEE 802.3ah standard simultaneously, OAM carries out by API, API can receive the OAM message of ONU MAC Address, and API also sends message to EPON frame buffering to OLT by CPU;
EPON MAC processing sub 31 is carried out EPON MAC access control, FEC verification and SERDES conversion;
Uni interface submodule 33 is finished the access of 10M/100M/1000M Ethernet and the conversion of EPON photosignal.
This video encoder can be the encoder that H.264/AVS compresses, and also can be the encoder of MPEG2, MPEG4 or MJEPG compressed encoding; This video encoder can be the encoder of ordinary sharpness, and promptly the following encoder of definition D1 or D1 also can be the high definition encoder, and promptly definition is 720P, 1080I, 1080P or more than the 1080P.This encoder is except that having the video coding function, can also carry out compressed encoding to audio signal, the video and audio signal of compression is packaged into all at last that IP bag enters IP network or the EPON network transmits, and can transmit multichannel RS485/RS422/RS232 data-signal in addition.
During use, this video encoder directly is connected with the OLT of EPON by optical fiber, carries out digital signal transmission by the EPON system.
Claims (2)
1, a kind of EPON video encoder is characterized in that: be made up of video input module, video compression coding module and EPON ONU module, wherein
Video input module is used to import analog video and carries out the A/D conversion;
The video compression coding module is carried out compressed encoding and is packaged into IP bag signal the video that is obtained by video input module;
EPON ONU module receives the IP bag signal that is sent by the video compression coding module, and finishes the optical fiber access of EPON;
The output of video input module is connected with the input of video compression coding module, and the output of video compression coding module is connected with the input of EPON ONU module.
2, EPON video encoder according to claim 1 is characterized in that: described EPON ONU module is made up of cpu system submodule, EPON MAC processing sub and uni interface submodule, wherein
The cpu system submodule is used to monitor the configuring condition of the equipment that activates on all modules, and monitors the state of total interface, and monitoring and execution are handled in real time, also handle the OAM(Operation Administration Maintenance) group simultaneously;
EPON MAC processing sub is used to carry out EPON MAC access control, FEC verification and SERDES conversion;
The uni interface submodule is used to finish the access of Ethernet and the conversion of EPON photosignal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910152463 CN101668209A (en) | 2009-09-14 | 2009-09-14 | EPON video encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910152463 CN101668209A (en) | 2009-09-14 | 2009-09-14 | EPON video encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101668209A true CN101668209A (en) | 2010-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 200910152463 Pending CN101668209A (en) | 2009-09-14 | 2009-09-14 | EPON video encoder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223490A (en) * | 2011-06-22 | 2011-10-19 | 上海博康智能网络科技有限公司 | Digital switching matrix supporting synchronic switching and synchronic switching method of digital image |
| CN103647607A (en) * | 2013-12-25 | 2014-03-19 | 厦门兴联科技有限公司 | Optical network unit (ONU) with video monitoring function |
-
2009
- 2009-09-14 CN CN 200910152463 patent/CN101668209A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223490A (en) * | 2011-06-22 | 2011-10-19 | 上海博康智能网络科技有限公司 | Digital switching matrix supporting synchronic switching and synchronic switching method of digital image |
| CN102223490B (en) * | 2011-06-22 | 2013-04-10 | 博康智能网络科技股份有限公司 | Digital switching matrix supporting synchronic switching and synchronic switching method of digital image |
| CN103647607A (en) * | 2013-12-25 | 2014-03-19 | 厦门兴联科技有限公司 | Optical network unit (ONU) with video monitoring function |
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Open date: 20100310 |