CN201571165U

CN201571165U - Video encoder for optical fiber self-healing ring network

Info

Publication number: CN201571165U
Application number: CN2009201982350U
Authority: CN
Inventors: 石旭刚
Original assignee: HANGZHOU OB TELECOM ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: OB Telecom Electronics Co., Ltd.
Priority date: 2009-09-30
Filing date: 2009-09-30
Publication date: 2010-09-01
Anticipated expiration: 2019-09-30

Abstract

The utility model discloses a video encoder for an optical fiber self-healing ring network by adopting the network technology of the optical fiber self-healing ring networks. The video encoder comprises a video input module, a video compressed encoding module and an optical fiber self-healing ring network module, wherein, the video input module is used for inputting analog videos and conducting A/D conversion; the video compressed encoding module is used for conducting compressed encoding on received videos and packaging the videos into an IP packet signal; the optical fiber self-healing ring network module is used for receiving the IP packet signal sent by the video compressed encoding module, and completing the self-healing ring network optical fiber accessing of the IP packet signal; the output terminal of the video input module is connected with the input terminal of the video compressed encoding module; and the output terminal of the video compressed encoding module is connected with the input terminal of the optical fiber self-healing ring network module. The utility model meets the requirements of remote and high reliable networking transmission and control of a large-scale high-definition encoder, and has the functions of Ethernet accessing and remote image transmission through optical fibers.

Description

Optical fiber self-healing ring network video encoder

Technical field

The utility model relates to a kind of video encoder, especially a kind of optical fiber self-healing ring network video encoder that adopts the optical fiber self-healing looped network network technology.

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 the reliability of network, for example adopts point-to-point fiber optical transceiver to transmit, and during fibercuts, network will be paralysed.

Summary of the invention

Technical problem to be solved in the utility model provides remote, highly reliable networking transmission of the extensive video encoder of a kind of adaptation and demand for control, especially the optical fiber self-healing ring network video encoder of remote, highly reliable networking transmission of high definition encoder and demand for control, 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 video encoder is made up of video input module, video compression coding module and optical fiber self-healing looped network module, and 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; The optical fiber self-healing looped network module receives the IP bag signal that is sent by the video compression coding module, and finishes the self-healing looped network optical fiber access of IP bag signal; 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 optical fiber self-healing looped network module.

Optical fiber self-healing looped network module described in the utility model inserts submodule by CPU submodule, IP commutator module and optical fiber and forms, CPU submodule wherein, IP commutator module is carried out the initialization setting, and the operating state of optical fiber self-healing looped network encoder place network is monitored; IP commutator module is carried out two layers of exchange to IP bag signal; Optical fiber inserts submodule, and photosignal is changed.

The utility model compared with prior art, has following beneficial effect: 1, 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; Optical fiber self-healing looped network is a kind of highly reliable fiber optic network transmission technology, be mainly used in the highly reliable networking transmission of networks such as realizing SDH, RPR, this video encoder creatively combines the optical fiber self-healing looped network technology with technology of video compressing encoding, integrated optical fiber self-healing looped network module in video encoder, filled up the market vacancy, make its function that not only has video compression coding, also possessed the networking and the transfer function of optical fiber self-healing looped network; 2, integrated 2 optical fiber interfaces in this video encoder, these 2 optical fiber interfaces can be formed the optical fiber self-healing looped network network, when the fibercuts of somewhere, do not influence the signal transmission of whole optical fiber self-healing ring network video encoder network, improved the reliability of video encoder network; 3, optical fiber self-healing ring network video encoder can directly be connected with the optic fibre of looped network access device of Surveillance center by optical fiber interface, form a highly reliable self-healing looped network, logically optical fiber self-healing ring network video encoder is exactly a special joint in the optical fiber self-healing looped network, this node not only has the optical fiber self-healing looped network function, also has the video compression coding function, so just can realize the directly remote fiber cluster of video encoder, also can form the cascade transmission network, when many remote fiber clusters of video encoder, do not need the support of additional transmissions equipment, save a large amount of fiber resources, reduced system cost; When 4, this optical fiber self-healing ring network video encoder is networked, adopt the optical fiber transmission technique in broadband, increased transmission bandwidth greatly, the optical fiber interface transmission rate is the highest can to reach 2.5G, even compressed video stream up to 20M, can not influence transmission performance yet.

Description of drawings

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is the structural representation of optical fiber self-healing looped network module in the utility model.

Fig. 3 is a commercial Application system configuration schematic diagram of the present utility model.

Embodiment

Referring to Fig. 1, present embodiment is made up of video input module 1, video compression coding module 2 and optical fiber self-healing looped network 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 optical fiber self-healing looped network 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.

Optical fiber self-healing looped network module 3 is realized by a technical grade exchange chip 88E6083-LGR and cpu chip MC9S12NEVTV, 88E6083-LGR realizes two layers of function of exchange of IP bag signal, MC9S12NEVTV realizes the optical fiber self-healing looped network protocol function, 88E6083-LGR reads the H.264 IP packet of compressed video from video compression coding module 2, and sends in the optical fiber self-healing looped network 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, MPE62, MPEG4 or MJPEG, and be packaged into IP bag signal;

Optical fiber self-healing looped network module 3 receives the IP bag signal that is sent by video compression coding module 2, and finishes the optical fiber access of self-healing looped network.The IP vision signal through optical fiber self-healing looped network module 3 after direct incoming fiber optic self-healing looped network, with optical fiber self-healing looped network network of self-healing looped network fiber access device composition of Surveillance center.

Optical fiber self-healing looped network module 3 inserts submodule 33 by CPU submodule 32, IP commutator module 31 and optical fiber to be formed, wherein:

CPU submodule 32 at first carries out the initialization setting to IP commutator module 31, then the operating state of whole optical fiber self-healing looped network encoder place network is monitored, and when fibercuts, controls whole fiber optic network and finishes self-healing function;

IP commutator module 31 is mainly finished two layers of exchange of IP bag signal;

Optical fiber inserts the conversion that submodule 33 is finished 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 all is packaged into IP bag at last and enters the optical fiber self-healing looped network network and transmit, and can transmit multichannel RS485/RS422/RS232 data-signal in addition.

Referring to Fig. 3, when the utility model is applied to actual engineering, form by video camera, this optical fiber self-healing ring network video encoder I, optical fiber II and the III of Surveillance center.Each optical fiber self-healing ring network video encoder I is connected with optical fiber by optical fiber interface, and finally is connected a ring network structure with the self-healing looped network optical access device connection of the III of Surveillance center.The self-healing looped network optical access device of the III of Surveillance center receives the compressing video frequency flow that all are transmitted by optical fiber self-healing ring network video encoder I, enter IP-SAN by Ethernet switch carries out the network storage to these compressing video frequency flows on the one hand, enters on the other hand to show on video wall after Video Decoder is reduced into analog video signal (ordinary sharpness video) or the non-compressed word vision signal of high definition (HDMI signal).

Claims

1. an optical fiber self-healing ring network video encoder is characterized in that: be made up of video input module, video compression coding module and optical fiber self-healing looped network 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;

The optical fiber self-healing looped network module receives the IP bag signal that is sent by the video compression coding module, and finishes the self-healing looped network optical fiber access of IP bag signal;

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 optical fiber self-healing looped network module.

2. optical fiber self-healing ring network video encoder according to claim 1 is characterized in that: described optical fiber self-healing looped network module inserts submodule by CPU submodule, IP commutator module and optical fiber to be formed, wherein

The CPU submodule carries out the initialization setting to IP commutator module, and the operating state of optical fiber self-healing looped network encoder place network is monitored;

IP commutator module is carried out two layers of exchange to IP bag signal;

Optical fiber inserts submodule, and photosignal is changed.