CN101692695A - Optical fiber self-healing looped network camera - Google Patents
Optical fiber self-healing looped network camera Download PDFInfo
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- CN101692695A CN101692695A CN200910152462A CN200910152462A CN101692695A CN 101692695 A CN101692695 A CN 101692695A CN 200910152462 A CN200910152462 A CN 200910152462A CN 200910152462 A CN200910152462 A CN 200910152462A CN 101692695 A CN101692695 A CN 101692695A
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Abstract
The invention discloses an optical fiber self-healing looped network camera adopting a network technology of a fiber self-healing looped network. The camera comprises a lens, an image sensor module, a control circuit, a video compressing and encoding module, an optical fiber self-healing looped network module, a video compressing and encoding module and an analog/digital video output interface module, wherein an original image obtained by the image sensor module is compressed and encoded by the video compressing and encoding module and then is packaged into an IP packet signal; the optical fiber self-healing looped network module receives the IP packet signal sent by the video compressing and encoding module and finishes the optical fiber access of the IP packet signal self-healing looped network; and the analog/digital video output interface module performs A/D conversion to the original image obtained by the image sensor module and outputs an analog or digital image signal. The camera can adapt to large-scale, long-distance, high-reliable networking transmission and control requirements of HDV, has a shooting function and has the functions of optical fiber self-healing looped network networking and image transmission.
Description
Technical field
The present invention relates to a kind of video monitoring video camera, especially a kind of optical fiber self-healing looped network camera that adopts the optical fiber self-healing looped network network technology.
Background technology
Existing video monitoring mainly contains following a few class with video camera: ordinary sharpness analog video camera, ordinary sharpness IP video camera, high definition analog video camera, high-definition digital video camera.
Wherein, the common simulation video camera adopts vision cable to be connected with external equipment, when the needs long-distance transmissions, transmit,, thereby cause system equipment and management all comparatively complicated so it need install extra transmission equipment in the video camera back by video optical multiplexer or video encoder.
Ordinary sharpness IP video camera is built-in video compressing module enters Ethernet by RJ45 output IP signal and transmits.Though this video camera can be installed easily and carry out long-distance transmissions by IP network, video quality is very limited, is difficult to use professional domain, as public security video monitoring net, highway video monitoring net, financial video monitoring net etc.
The high definition analog video camera has very high video quality, but output is analog component signal, and as rgb signal, Y/U/V signal, Y-Pb-Pr signal, these signals can not carry out long-distance transmissions.
The high-definition digital video camera has digital interfaces such as SDI/DVI, HDMI, but the speed of these interfaces reaches more than several G, and the cost that carry out long-distance transmissions is very high, may use in monitoring hardly.
The high-definition digital video camera that also has is built-in video compressing module, and enter Ethernet by RJ45 output IP signal and transmit.But for the high-definition digital video camera, the code stream of compressed video only could real realize that 1080P is full HD about 20M, and the code stream of every road video 20M directly enters Ethernet and transmits, and way will be paralysed once network for a long time.So the code stream basic controlling of this class video camera is about 8M on the market, its definition is difficult to the requirement that reaches full HD.
Summary of the invention
Technical problem to be solved by this invention provides remote, highly reliable networking transmission of the extensive video camera of a kind of adaptation and demand for control, especially the optical fiber self-healing looped network camera of remote, highly reliable networking transmission of high-definition camera and demand for control, it not only has the function of shooting, has also possessed the function of optical fiber self-healing looped network networking and images simultaneously.
The present invention addresses the above problem the technical scheme that is adopted: this video camera comprises
Camera lens is used to gather optical imagery, and optical imagery is focused on the image sensor module;
Image sensor module is used to finish the photosignal conversion and the A/D conversion of picture signal, and the output digital image signal;
Control circuit is used for image sensor module and camera lens are controlled;
It is characterized in that: also comprise video compression coding module, optical fiber self-healing looped network module and analog/digital video output interface module, wherein
The video compression coding module is carried out compressed encoding and is packaged into IP bag signal the original image that is obtained by image sensor module;
The optical fiber self-healing looped network module, the IP bag signal that receiver, video compressed encoding module is sent, and finish the self-healing looped network optical fiber access that IP wraps signal;
Analog/digital video output interface module is carried out the A/D conversion to the original image that is obtained by image sensor module, and output analog or digital picture signal;
The output of control circuit, camera lens are connected with the input of image sensor module, the input of the input of video compression coding module, analog/digital video output interface module is connected with the output of image sensor module, and the input of optical fiber self-healing looped network module is connected with the output of video compression coding module.
Optical fiber self-healing looped network module of the present invention 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 camera 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.
Optical fiber of the present invention inserts submodule and is provided with two optical fiber interfaces.
The analog picture signal that analog/digital video output interface module of the present invention is exported is composite video signal, rgb signal, Y/U/V signal or Y-Pb-Pr signal, and data image signal is SDI/DVI signal or HDMI signal
The present invention compared with prior art has following beneficial effect:
1, this optical fiber self-healing looped network camera creatively is applied to field of cameras to the optical fiber self-healing looped network technology, make this video camera not only have the function of shooting, the networking and the transfer function that have also possessed optical fiber self-healing looped network, it is certainly empty to have filled up market, not only greatly simplify the process that video camera is networked at a distance and transmitted, also greatly improved the reliability of the remote networking of video camera; 2, this optical fiber self-healing looped network camera 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 an optical fiber self-healing looped network camera 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 camera function, so just realized the directly remote fiber cluster of video camera, also can form the cascade transmission network, when the remote fiber cluster of multiple cameras, do not need the support of additional transmissions equipment, save a large amount of fiber resources, reduced system cost; 3, integrated two optical fiber interfaces in this optical fiber self-healing looped network camera, these two optical fiber interfaces can be formed the optical fiber self-healing looped network network, when the fibercuts of somewhere, can not influence the signal transmission of whole optical fiber self-healing looped network camera network, improved the reliability of camera network; When 4, this optical fiber self-healing looped network camera 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, given full play to the high definition advantage.
Description of drawings
Fig. 1 is a general structure schematic diagram of the present invention.
Fig. 2 is the structural representation of optical fiber self-healing looped network module among the present invention.
Fig. 3 is the structural representation of the present invention when being applied to actual engineering.
Embodiment
Referring to Fig. 1, present embodiment is made up of camera lens 1, image sensor module 2, control circuit 3, video compression coding module 4, analog/digital video output interface module 5, optical fiber self-healing looped network module 6.The output of control circuit 3, camera lens 1 are connected with the input of image sensor module 2, the input of the input of video compression coding module 4, analog/digital video output interface module 5 is connected with the output of image sensor module 2, and the input of optical fiber self-healing looped network module 6 is connected with the output of video compression coding module 4.
Wherein:
Camera lens 1 adopts the optical lens of prior art;
Image sensor module 2 adopts MT9T031 cmos digital imageing sensor, and this transducer has 3,000,000 pixels, and ultimate resolution reaches 2048X1536;
Control circuit 3 adopts common single-chip microcomputer that the MT9T031CMOS digital image sensor is carried out programming Control;
Video compression coding module 4 adopts Leonardo da Vinci's series DSP chip of TI, and H.264 compressed encoding and IP that this chip can be finished HD video seal dress;
The analog/digital video output interface module 5 main LATTICE SC Series FPGA chips that adopt design, and FPGA reads data image signal from MT9T031, and by the various traditional analog/digital vision signals of the last output of various processing.
Optical fiber self-healing looped network module 6 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, and MC9S12NEVTV realizes the self-healing looped network protocol function.88E6083-LGR reads the H.264 IP packet of compressed video from video compression coding module 4, and sends in the fiber optic network.
Camera lens 1 is used to gather optical imagery, and optical imagery is focused on the image sensor module.Camera lens 1 both can adopt manual controls lens, also can adopt automatic controls lens, both can be the ordinary sharpness camera lens, also can be the high definition camera lens.
Image sensor module 2 is used to finish the photosignal conversion and the A/D conversion of picture signal, and the output digital image signal is to analog/digital video output interface module 5 and video compression coding module 4.Imageing sensor 2 both can adopt ccd image sensor, also can adopt cmos image sensor.
Control circuit 3 is used for image sensor module 2 and camera lens 1 are controlled, and comprises exposure control, Automatic white balance control and lens aperture control.
4 pairs of original images that obtained by image sensor module 2 of video compression coding module carry out compressed encoding and are packaged into IP bag signal, export optical fiber self-healing looped network module 6 then to, the compressed encoding form for H.264, MPEG2, MPEG4 or MJPEG.
Analog/digital video output interface module 5 is used for the original image that is obtained by image sensor module 2 is carried out the A/D conversion, and output analog or digital picture signal.Output image can be composite video signal (ordinary sharpness), rgb signal (common or high-definition image), Y/U/V signal (common or high-definition image), Y-Pb-Pr signal analog signals such as (common or high-definition images), also can be SDI/DVI signal (high-definition digital image), HDMI signal digital high-definition signals such as (high-definition digital images).
The IP bag signal that optical fiber self-healing looped network module 6 receiver, video compressed encoding modules 4 are sent, and finish the self-healing looped network optical fiber access that IP wraps signal, and form an optical fiber ring network network with the self-healing looped network fiber access device of Surveillance center.
Optical fiber self-healing looped network module 6 inserts submodule 63 by CPU submodule 62, IP commutator module 61 and optical fiber to be formed, wherein:
62 pairs of IP commutators of CPU submodule module 61 is carried out the initialization setting, and the operating state of optical fiber self-healing looped network camera place network is monitored, and when fibercuts, controls whole fiber optic network and finishes self-healing function;
61 pairs of IP bags of IP commutator module signal carries out two layers of exchange;
Referring to Fig. 3, when the present invention is applied to actual engineering, form by this optical fiber self-healing looped network camera I, optical fiber II and the III of Surveillance center.Each optical fiber self-healing looped network camera I is connected with optical fiber II by optical fiber interface, and final the connection with the self-healing looped network optical access device of the III of Surveillance center forms a ring network structure, and the speed of optical fiber interface can be 100M, 1.25G or 2.5G.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 looped network camera 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 at 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 (4)
1. an optical fiber self-healing looped network camera comprises
Camera lens is used to gather optical imagery, and optical imagery is focused on the image sensor module;
Image sensor module is used to finish the photosignal conversion and the A/D conversion of picture signal, and the output digital image signal;
Control circuit is used for image sensor module and camera lens are controlled;
It is characterized in that: also comprise video compression coding module, optical fiber self-healing looped network module and analog/digital video output interface module, wherein
The video compression coding module is carried out compressed encoding and is packaged into IP bag signal the original image that is obtained by image sensor module;
The optical fiber self-healing looped network module, the IP bag signal that receiver, video compressed encoding module is sent, and finish the self-healing looped network optical fiber access that IP wraps signal;
Analog/digital video output interface module is carried out the A/D conversion to the original image that is obtained by image sensor module, and output analog or digital picture signal;
The output of control circuit, camera lens are connected with the input of image sensor module, the input of the input of video compression coding module, analog/digital video output interface module is connected with the output of image sensor module, and the input of optical fiber self-healing looped network module is connected with the output of video compression coding module.
2. optical fiber self-healing looped network camera 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 camera 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.
3. optical fiber self-healing looped network camera according to claim 2 is characterized in that: described optical fiber inserts submodule and is provided with two optical fiber interfaces.
4. optical fiber self-healing looped network camera according to claim 1, it is characterized in that: the analog picture signal that described analog/digital video output interface module is exported is composite video signal, rgb signal, Y/U/V signal or Y-Pb-Pr signal, and data image signal is SDI/DVI signal or HDMI signal.
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| CN200910152462A CN101692695A (en) | 2009-09-14 | 2009-09-14 | Optical fiber self-healing looped network camera |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014277A (en) * | 2010-12-03 | 2011-04-13 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, video monitoring method and spherical camera |
| CN117639936A (en) * | 2023-12-12 | 2024-03-01 | 广西电网有限责任公司贵港供电局 | Transmission method and device based on IP optical fiber communication |
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2009
- 2009-09-14 CN CN200910152462A patent/CN101692695A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102014277A (en) * | 2010-12-03 | 2011-04-13 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, video monitoring method and spherical camera |
| CN102014277B (en) * | 2010-12-03 | 2013-05-15 | 杭州海康威视数字技术股份有限公司 | Video monitoring system, video monitoring method and spherical camera |
| CN117639936A (en) * | 2023-12-12 | 2024-03-01 | 广西电网有限责任公司贵港供电局 | Transmission method and device based on IP optical fiber communication |
| CN117639936B (en) * | 2023-12-12 | 2024-05-24 | 广西电网有限责任公司贵港供电局 | Transmission method and device based on IP optical fiber communication |
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Application publication date: 20100407 |