CN111669520B - Video sharing general optical fiber transmission structure - Google Patents
Video sharing general optical fiber transmission structure Download PDFInfo
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- CN111669520B CN111669520B CN202010548713.7A CN202010548713A CN111669520B CN 111669520 B CN111669520 B CN 111669520B CN 202010548713 A CN202010548713 A CN 202010548713A CN 111669520 B CN111669520 B CN 111669520B
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- video
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- optical fiber
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/222—Studio circuitry; Studio devices; Studio equipment
- H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
- H04N5/268—Signal distribution or switching
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Optical Communication System (AREA)
Abstract
The invention belongs to the technical field of videos, and particularly relates to a video sharing general optical fiber transmission structure. The structure includes: the device comprises a first photoelectric observation device, a second photoelectric observation device, a wavelength division multiplexer, a photoelectric slip ring, a light splitter, a first video monitor and a second video monitor; the observation equipment adopts a photoelectric processing circuit capable of configuring video transmission light wavelength, and then is converted into a standard optical signal interface, and meanwhile, the upper end and the lower end of the photoelectric slip ring and the plurality of video monitors are also subjected to standardized design on the optical signal interface, so that the universal interchangeability of the optical signal equipment is realized. After passing through the photoelectric slip ring, the optical signals are designed to be split, so that a plurality of monitors can simultaneously observe the video to be observed. Therefore, the invention can solve the problems that the video is frequently switched among a plurality of channels at present, the cost is higher, and the problems of screen flashing, time delay, blocking and the like are easy to occur, thereby realizing multi-channel video information distribution and coupling sharing.
Description
Technical Field
The invention belongs to the technical field of videos, and particularly relates to a video sharing general optical fiber transmission structure.
Background
With the development of intelligent terminals and intelligent applications, the requirements for video information transmission and resource allocation are increasingly urgent, and the method becomes a research hotspot in recent years. The transmission capability of a single channel cannot meet the transmission requirement of video services, the multichannel video transmission method is widely applied, but the video is frequently switched among a plurality of channels, the cost is high, and the problems of screen flashing, time delay, blocking and the like are easy to occur. How to realize multi-channel video information distribution and coupling sharing has become a difficult point troubling users.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: how to provide a video sharing common optical fiber transmission structure.
(II) technical scheme
To solve the above technical problem, the present invention provides a video sharing general optical fiber transmission structure, which includes: the system comprises a first photoelectric observation device 1, a second photoelectric observation device 2, a wavelength division multiplexer 3, a photoelectric slip ring 4, a light splitter 5, a first video monitor 6 and a second video monitor 7; wherein the content of the first and second substances,
the first photoelectric observation device 1 and the second photoelectric observation device 2 are erected on the rotating body at the same time, and optical video signals of the first photoelectric observation device 1 and the second photoelectric observation device 2 are transmitted to the lower part of the rotating body at the same time;
the wavelength division multiplexer 3 is used for converging the optical video signals of the first photoelectric observation device 1 and the second photoelectric observation device 2 into a single-core optical video signal;
the photoelectric slip ring 4 is used for ensuring that the optical video signal transmission of the upper part and the lower part can be continuous when the upper part formed by the first photoelectric observation device 1, the second photoelectric observation device 2 and the wavelength division multiplexer 3 rotates relative to the lower part formed by the optical splitter 5, the first video monitor 6 and the second video monitor 7;
the optical splitter 5 is used to distribute the single-channel optical video signal, which is encoded with the same signal, to a first video monitor 6 and a second video monitor 7 simultaneously.
The first photoelectric observation device 1, the second photoelectric observation device 2, the photoelectric slip ring 4, the first video monitor 6 and the second video monitor 7 adopt optical video signal interfaces with the same standard, so that the device interfaces are simplified and unified.
The first photoelectric observation device 1 and the second photoelectric observation device 2 are connected with the wavelength division multiplexer 3 through optical fiber cables.
The first video monitor 6 and the second video monitor 7 are connected with the optical splitter 5 through optical fiber cables.
The wavelength division multiplexer 3 and the photoelectric slip ring 4 are in butt joint through an optical fiber cable.
The photoelectric slip ring 4 and the optical splitter 5 are in butt joint through an optical fiber cable.
The optical fiber cable between the wavelength division multiplexer 3 and the photoelectric slip ring 4 and the optical fiber cable between the photoelectric slip ring 4 and the optical splitter 5 can be exchanged electrically.
Wherein the first and second photoelectric observation devices 1 and 2 each include: the device comprises a video switching matrix and a multi-wavelength photoelectric conversion module;
the video switching matrix is used for switching different video sources to photoelectric conversion circuits with different wavelengths according to requirements.
When a video switching matrix is configured, different equipment and video sources are coded, and different optical sheet wavelengths are required to be allocated for different video sources of different equipment;
for different video sources of different equipment, if the occupied optical fiber wavelengths are the same, the output cannot be carried out;
and for different video sources of different equipment, if the occupied optical fiber wavelengths are different from each other, the output can be carried out simultaneously.
Wherein, the first video monitor 6 and the second video monitor 7 are respectively provided with a wavelength division demultiplexer therein, which is used for simultaneously converting optical video signals with different wavelengths into electrical video signals acceptable by the first video monitor 6 and the second video monitor 7.
(III) advantageous effects
The invention provides a video sharing general optical fiber transmission structure.A viewing device adopts a photoelectric processing circuit capable of configuring video transmission optical wavelength and then converts the video transmission optical wavelength into a standard optical signal interface, and meanwhile, the upper end and the lower end of a photoelectric slip ring and a plurality of video monitors also carry out standardized design on the optical signal interface, thereby realizing general interchangeability of optical signal devices. After passing through the photoelectric slip ring, the optical signals are designed to be split, so that a plurality of monitors can simultaneously observe the video to be observed.
Therefore, compared with the prior art, the method and the device can solve the problems that the video is frequently switched among a plurality of channels at present, the cost is high, screen flashing, time delay, blocking and the like are easy to occur, and therefore multi-channel video information distribution and coupling sharing are achieved.
Drawings
Fig. 1 is a schematic diagram of the technical scheme of the invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
For the transmission requirement of real-time high-speed large-capacity non-compressed video, the transmission can not be carried out according to the general compression and decompression coding modes, and the channel continuity mode is required to be adopted, but in the remote transmission, especially the optical signal transmission mode is generally adopted when the observation equipment is erected on the rotary connecting body, for the backup requirement, more than 2 observation equipment are erected on the rotating body at the same time, and when the videos of two equipment are transmitted to the lower part of the rotating body at the same time, the videos of the two equipment need to be completed by adopting a single-core photoelectric slip ring matched with a wavelength division multiplexer and a wavelength division multiplexer. The transmission structure requires different devices to adopt different light modulation frequencies, and if the optical modules with different wavelengths are simply adopted, the devices are not universal, the devices cannot be interchanged with each other, and the universality principle is not met.
Also, there is another demand that 2 occupants operate 2 sets of observation devices at the same time, and there is a demand for video sharing between different occupants.
To solve the above technical problem, the present invention provides a video sharing general optical fiber transmission structure, as shown in fig. 1, the structure includes: the system comprises a first photoelectric observation device 1, a second photoelectric observation device 2, a wavelength division multiplexer 3, a photoelectric slip ring 4, a light splitter 5, a first video monitor 6 and a second video monitor 7; wherein the content of the first and second substances,
the first photoelectric observation device 1 and the second photoelectric observation device 2 are erected on the rotating body at the same time, and optical video signals of the first photoelectric observation device 1 and the second photoelectric observation device 2 are transmitted to the lower part of the rotating body at the same time;
the wavelength division multiplexer 3 is used for converging the optical video signals of the first photoelectric observation device 1 and the second photoelectric observation device 2 into a single-core optical video signal;
the photoelectric slip ring 4 is used for ensuring that the optical video signal transmission of the upper part and the lower part can be continuous when the upper part formed by the first photoelectric observation device 1, the second photoelectric observation device 2 and the wavelength division multiplexer 3 rotates relative to the lower part formed by the optical splitter 5, the first video monitor 6 and the second video monitor 7;
the optical splitter 5 is used to distribute the single-channel optical video signal, which is encoded with the same signal, to a first video monitor 6 and a second video monitor 7 simultaneously.
The first photoelectric observation device 1, the second photoelectric observation device 2, the photoelectric slip ring 4, the first video monitor 6 and the second video monitor 7 adopt optical video signal interfaces with the same standard, so that the device interfaces are simplified and unified.
The first photoelectric observation device 1 and the second photoelectric observation device 2 are connected with the wavelength division multiplexer 3 through an optical fiber cable.
The first video monitor 6 and the second video monitor 7 are connected with the optical splitter 5 through optical fiber cables.
The wavelength division multiplexer 3 and the photoelectric slip ring 4 are in butt joint through an optical fiber cable.
The photoelectric slip ring 4 and the optical splitter 5 are in butt joint through an optical fiber cable.
The optical fiber cable between the wavelength division multiplexer 3 and the photoelectric slip ring 4 and the optical fiber cable between the photoelectric slip ring 4 and the optical splitter 5 can be exchanged electrically.
Wherein the first and second photoelectric observation devices 1 and 2 each include: the device comprises a video switching matrix and a multi-wavelength photoelectric conversion module;
the video switching matrix is used for switching different video sources to photoelectric conversion circuits with different wavelengths according to requirements.
When a video switching matrix is configured, different equipment and video sources are coded, and different optical sheet wavelengths are required to be allocated for different video sources of different equipment;
for different video sources of different equipment, if the occupied optical fiber wavelengths are the same, the output cannot be carried out;
and for different video sources of different equipment, if the occupied optical fiber wavelengths are different from each other, the output can be carried out simultaneously.
Wherein, the first video monitor 6 and the second video monitor 7 are respectively provided with a wavelength division demultiplexer therein, which is used for simultaneously converting optical video signals with different wavelengths into electrical video signals acceptable by the first video monitor 6 and the second video monitor 7.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A video sharing common optical fiber transmission architecture, the architecture comprising: the device comprises a first photoelectric observation device (1), a second photoelectric observation device (2), a wavelength division multiplexer (3), a photoelectric slip ring (4), a light splitter (5), a first video monitor (6) and a second video monitor (7); wherein, the first and the second end of the pipe are connected with each other,
the first photoelectric observation device (1) and the second photoelectric observation device (2) are erected on the rotating body at the same time, and optical video signals of the first photoelectric observation device (1) and the second photoelectric observation device (2) are transmitted to the lower part of the rotating body at the same time;
the wavelength division multiplexer (3) is used for converging the optical video signals of the first photoelectric observation device (1) and the second photoelectric observation device (2) into a single-core optical video signal;
the photoelectric slip ring (4) is used for ensuring that the transmission of optical video signals of the upper part and the lower part can be continuous when the upper part formed by the first photoelectric observation device (1), the second photoelectric observation device (2) and the wavelength division multiplexer (3) rotates relative to the lower part formed by the optical splitter (5), the first video monitor (6) and the second video monitor (7);
the optical splitter (5) is used for simultaneously distributing a single-channel optical video signal with the same obtained signal code to a first video monitor (6) and a second video monitor (7);
the first photoelectric observation device (1), the second photoelectric observation device (2), the photoelectric slip ring (4), the first video monitor (6) and the second video monitor (7) adopt optical video signal interfaces with the same standard, so that the device interfaces are simplified and unified;
the first and second photoelectric observation devices (1, 2) each include: the device comprises a video switching matrix and a multi-wavelength photoelectric conversion module;
the video switching matrix is used for switching different video sources to photoelectric conversion circuits with different wavelengths according to requirements;
when a video switching matrix is configured, different equipment and video sources are coded, and different optical sheet wavelengths are required to be allocated for different video sources of different equipment;
for different video sources of different equipment, if the occupied optical fiber wavelengths are the same, the output cannot be carried out;
and for different video sources of different equipment, if the occupied optical fiber wavelengths are different from each other, the output can be carried out simultaneously;
the first video monitor (6) and the second video monitor (7) are internally provided with wavelength division multiplexers for simultaneously converting optical video signals with different wavelengths into television frequency signals acceptable by the first video monitor (6) and the second video monitor (7).
2. The video sharing common optical fiber transmission architecture according to claim 1, wherein the first and second electro-optical observation devices (1, 2) are interfaced to the wavelength division multiplexer (3) by an optical fiber cable.
3. The video sharing common fiber optic transmission architecture of claim 1, wherein the first video monitor (6), the second video monitor (7) interface with the optical splitter (5) via fiber optic cable.
4. The video sharing common optical fiber transmission architecture according to claim 1, wherein the wavelength division multiplexer (3) and the electro-optical slip ring (4) are interfaced via fiber optic cables.
5. The video sharing common optical fiber transmission structure according to claim 4, wherein the optoelectronic slip ring (4) and the optical splitter (5) are connected by an optical fiber cable.
6. The video sharing common optical fiber transmission architecture according to claim 5, wherein the optical fiber cable between the wavelength division multiplexer (3) and the optoelectronic slip ring (4) is interchangeable with the optical fiber cable between the optoelectronic slip ring (4) and the optical splitter (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010548713.7A CN111669520B (en) | 2020-06-16 | 2020-06-16 | Video sharing general optical fiber transmission structure |
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| CN202010548713.7A CN111669520B (en) | 2020-06-16 | 2020-06-16 | Video sharing general optical fiber transmission structure |
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| CN111669520A CN111669520A (en) | 2020-09-15 |
| CN111669520B true CN111669520B (en) | 2022-09-30 |
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| CN113890614B (en) * | 2021-10-20 | 2023-03-31 | 浙江大立科技股份有限公司 | Rotary platform signal transmission system based on single-channel photoelectric hybrid slip ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057536A (en) * | 1999-08-17 | 2001-02-27 | Toshiba Corp | Multi-channel video transmission system and television camera |
| CN206879009U (en) * | 2016-12-08 | 2018-01-12 | 苏交科集团股份有限公司 | A kind of multichannel HD SDI compressions multiplexing optical transmitter and receiver and distance transmission system |
| CN108234942A (en) * | 2017-12-14 | 2018-06-29 | 中国北方车辆研究所 | A kind of high-bandwidth video switching device |
| CN108307129A (en) * | 2017-12-12 | 2018-07-20 | 天津津航计算技术研究所 | A kind of multi-channel optical fibre video switching system based on FC-AV agreements |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030208779A1 (en) * | 2002-04-15 | 2003-11-06 | Green Samuel I. | System and method for transmitting digital video over an optical fiber |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001057536A (en) * | 1999-08-17 | 2001-02-27 | Toshiba Corp | Multi-channel video transmission system and television camera |
| CN206879009U (en) * | 2016-12-08 | 2018-01-12 | 苏交科集团股份有限公司 | A kind of multichannel HD SDI compressions multiplexing optical transmitter and receiver and distance transmission system |
| CN108307129A (en) * | 2017-12-12 | 2018-07-20 | 天津津航计算技术研究所 | A kind of multi-channel optical fibre video switching system based on FC-AV agreements |
| CN108234942A (en) * | 2017-12-14 | 2018-06-29 | 中国北方车辆研究所 | A kind of high-bandwidth video switching device |
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