CN201504295U - Video coder of EPON - Google Patents
Video coder of EPON Download PDFInfo
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- CN201504295U CN201504295U CN 200920195703 CN200920195703U CN201504295U CN 201504295 U CN201504295 U CN 201504295U CN 200920195703 CN200920195703 CN 200920195703 CN 200920195703 U CN200920195703 U CN 200920195703U CN 201504295 U CN201504295 U CN 201504295U
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- video
- epon
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- compression coding
- coding module
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Abstract
The utility model discloses a video coder, in particular to a video coder of an EPON (Ethernet passive optical network), which adopts the EPON optic fiber access technology. The coder 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 the analogue-digital conversion; the video compression coding module is used for compressing and coding the video obtained from the video input module and encapsulating the video into an internet protocol (IP) packet; the EPON ONU module is used for receiving the IP packet sent by the video compression coding module and finishing the EPON optic fiber access; 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 video coder meets the large-scale demands for remote data transmission and control of the video coder, especially in the remote data transmission and the control of a high-definition coder, and integrates the Ethernet access function and the remote video transmission function through optic fibers.
Description
Technical field
The utility model 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 in the utility model 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 technical scheme in the invention for solving the above technical problem is: 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 described in the utility model 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 utility model 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 utility model.
Fig. 2 is the structural representation of EPON ON module in the utility model.
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 input module 1 adopts the video decode circuit and the video format change-over circuit of prior art.
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.
Video input module 1 is used to import analog video and carries out the A/D conversion, then finishes the format conversion function for the high-definition digital signal.
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:
EPON MAC processing sub 31 is carried out EPON MAC access control, FEC verification and SERDES conversion;
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. an 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 200920195703 CN201504295U (en) | 2009-09-14 | 2009-09-14 | Video coder of EPON |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920195703 CN201504295U (en) | 2009-09-14 | 2009-09-14 | Video coder of EPON |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201504295U true CN201504295U (en) | 2010-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920195703 Expired - Lifetime CN201504295U (en) | 2009-09-14 | 2009-09-14 | Video coder of EPON |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201504295U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427299A (en) * | 2013-08-23 | 2015-03-18 | 北京计算机技术及应用研究所 | Ultra high definition video camera composite communication system and method |
| CN110087010A (en) * | 2019-05-13 | 2019-08-02 | 泰山医学院 | A kind of video coding system |
-
2009
- 2009-09-14 CN CN 200920195703 patent/CN201504295U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104427299A (en) * | 2013-08-23 | 2015-03-18 | 北京计算机技术及应用研究所 | Ultra high definition video camera composite communication system and method |
| CN110087010A (en) * | 2019-05-13 | 2019-08-02 | 泰山医学院 | A kind of video coding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 310012 Xihu District, Zhejiang Province, Wensanlu Road, No. 20, Zhejiang construction building, layer 17, Patentee after: OB Telecom Electronics Co., Ltd. Address before: 17 building, building 20, building 310012, Xihu District, Zhejiang, Hangzhou, Wensanlu Road Patentee before: Hangzhou OB Telecom Electronic Technology Co., Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Chen Jiadong Document name: Request for invalidation is deemed not to have been made |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |