CN202282835U - Lossless relay multiplexer for digital videos - Google Patents
Lossless relay multiplexer for digital videos Download PDFInfo
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- CN202282835U CN202282835U CN2010206462105U CN201020646210U CN202282835U CN 202282835 U CN202282835 U CN 202282835U CN 2010206462105 U CN2010206462105 U CN 2010206462105U CN 201020646210 U CN201020646210 U CN 201020646210U CN 202282835 U CN202282835 U CN 202282835U
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- 239000013307 optical fiber Substances 0.000 claims abstract description 7
- 230000005693 optoelectronics Effects 0.000 claims description 12
- 238000004891 communication Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 5
- 230000003321 amplification Effects 0.000 abstract 1
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Abstract
The utility model discloses a lossless relay multiplexer for digital videos, wherein the lossless relay multiplexer is used in an industrial-grade optical fiber video communication network, and a mini type case with the overall size being 210mm*155mm*45mm can be arranged on a standard 19-inch cabinet or a hanging wall. According to the lossless relay multiplexer for the digital videos, digital video signals uploaded in multiple directions can be converged in a digital multiplexing manner and then uploaded through an optical fiber after being converged. The lossless relay multiplexer for the digital videos is designed specially for solving the problem on transmitting long-distance videos in a real-time, synchronous, distortion-free and high-quality manner. The lossless relay multiplexer disclosed by the utility model support the lossless amplification and regeneration of eight paths of video optical signals maximally as well as the convergence and multiplexing of the video optical signals into one path of optical signal to be transmitted, so that the transmission distance of the videos is effectively extended, the long-distance backbone optical cable resources are greatly saved (by 87.5%), and the user cost is lowered. The lossless relay multiplexer disclosed by the utility model is suitable for street public security monitoring, broadcast television transmission, high-fidelity video conferences, intelligent traffic systems (ITS), railway/highway monitoring, security systems and other video businesses.
Description
Technical field
The utility model relates to video communication service, is that a kind of use is at the harmless relaying multiplexer of the digital video of technical grade optical fiber video communication network.
Background technology
At present, no matter be the integrated ordinary video optical transceiver of the single channel or the vision signal of multichannel, all be divided into video transmission optical transceiver and video reception optical transceiver.It is coaxial cable that the video transmission optical transceiver is directly gathered the media that camera gun passes the vision signal come, its maximum effective range can only 200 meters or in.And in order to guarantee that the video reception optical transceiver obtains the quality and the synchronism of vision signal preferably; Usually carry out the video of point-to-point; Promptly pass through optical cable; Vision signal is sent to the video reception optical transceiver from the video transmission optical transceiver, through relevant playback devices such as displays video playback is come out again.Can cause like this, or monitoring range is narrow, or just takies more key cable resource.
Summary of the invention
The purpose of the utility model is to solve the defective that above-mentioned prior art exists, and provides a kind of use at the harmless relaying multiplexer of the digital video of technical grade optical fiber video communication network, with less key cable resource, realizes monitoring on a large scale.
The purpose of the utility model can realize above-mentioned target through following technical scheme: whole size is the MINI type cabinet of 210mm*155mm*45mm, and digital video can't harm the relaying multiplexer.
Multiplexer comprises the integrated optoelectronic module that is connected with single channel video transmission optical transceiver, the integrated optoelectronic module, the fpga chip of fast acquisition of digital video signals, power module, power access end mouth, serial ports network management interface, serial port chip, single chip control module, the working station indicator that are connected with multi-channel video reception optical transceiver; Above-mentioned employed integrated optoelectronic module is according to real business demand, configuration interface type and transmission range.
The described integrated optoelectronic module that is connected with single channel video transmission optical transceiver can be restrained digital video signal and the RS485 control signal that the single channel video transmission optical transceiver of 1 to 8 light direction is come.Digital video signal and RS485 control signal word signal are handled through dedicated video chip and described fpga chip; Converge and be multiplexed with 1 tunnel high-speed figure video flowing; And through described concentrated the uploading of integrated optoelectronic module that is connected with multi-channel video reception optical transceiver; Practice thrift long distance key optical cables (practicing thrift 87.5% fiber resource) in a large number, possess digital, zero-decrement advantage, realize that vision signal length distance is undistorted, high synchronously, high-quality transmission.
Described power module and power access end mouth, condition of power supply that can be actual according to the user, flexible configuration AC power supply module or DC power supplier, and can select different operating voltages, possess lightning protection function and reversal connection and receive function.
Described serial ports network management interface, serial port chip, single chip control module.The serial ports network management interface is the RJ45 socket; Can be through special-purpose webmaster cable and webmastering software platform; Observe synchronously digital video lossless relaying multiplexer, single channel video transmission optical transceiver, multi-channel video and receive the operating state of light end, and the reception that can control the digital video signal of 8 light directions enables to open or close.Webmaster signal processing is wherein realized through serial port chip and single chip control module.
Described working station indicator comprises system works indicator light WK; The light signal of 8 single channel video transmission optical transceivers is lost alarm indicator LA～LH; Multi-channel video receives the light signal of optical transceiver and loses indicator light OLS.
(Fig. 2) compares with prior art, and the utility model (Fig. 3) is helpful to be: 1, enlarge monitoring range; 2, in the signal processing; It is the digital conversion between special chip; And be that light signal gets into and light signal output; Guaranteed digital video signal and the quality of RS485 control signal in transport process, possessed digital, zero-decrement advantage, realized that the long distance of vision signal is undistorted, high synchronously, high-quality transmission; 3, final set a to optical fiber is exported, in long Distance Transmission, and the resource (practicing thrift 87.5% fiber resource) of greatly having saved key optical cable; 4, integrated webmaster signal and working station indicator so monitor the state of each equipment in whole video signal and the RS485 control signal transport process effectively, have been saved the time of fault location and eliminating.
Description of drawings
Fig. 1 is the harmless relaying multiplexer sketch map of the utility model digital video;
Fig. 2 is the application scheme of traditional video optical multiplexer;
Fig. 3 is the application scheme of the harmless relaying multiplexer of the utility model digital video.
Embodiment
The utility model digital video can't harm relaying multiplexer sketch map, and is as shown in Figure 1: OPT-A～OPTH is the integrated optoelectronic module that is connected with single channel video transmission optical transceiver of 8 light directions; UP-OPT converges the multiplexing integrated optoelectronic module that is connected with multi-channel video reception optical transceiver; CONSOLE is the serial ports network management interface; WK, OLS, LA～LH are working station indicators.
The application scheme of traditional video optical multiplexer, as shown in Figure 2.
The application scheme of the harmless relaying multiplexer of the utility model digital video; As shown in Figure 3: in the typical application scheme of technical grade optical fiber video communication network; The harmless relaying multiplexer of utility model digital video is than traditional video optical multiplexer biggest advantage: possess digital, zero-decrement advantage; Realize that the long distance of vision signal is undistorted, high synchronously, under the high-quality transmission situation, the resource (practicing thrift 87.5% fiber resource) of greatly having saved key optical cable (trunk cable).
Claims (6)
1. the harmless relaying multiplexer of digital video comprises the optical interface that is connected with single channel video transmission optical transceiver; Receive the optical interface that optical transceiver is connected with multi-channel video, it is characterized in that:
Whole size is the MINI type cabinet of 210mm*155mm*45mm, and the harmless relaying multiplexer of digital video comprises the integrated optoelectronic module that is connected with single channel video transmission optical transceiver, the integrated optoelectronic module, the fpga chip of fast acquisition of digital video signals, power module, power access end mouth, serial ports network management interface, serial port chip, single chip control module, the working station indicator that are connected with multi-channel video reception optical transceiver;
Above-mentioned employed integrated optoelectronic module is according to real business demand, configuration interface type and transmission range.
2. digital video according to claim 1 can't harm the relaying multiplexer; It is characterized in that: digital video signal and RS485 control signal that the said integrated optoelectronic module convergence that is connected with single channel video transmission optical transceiver is come from single channel video transmission optical transceiver, support to restrain the digital video signal and the RS485 control signal of 8 light directions at most.
3. digital video according to claim 2 can't harm the relaying multiplexer; It is characterized in that: the said integrated optoelectronic module that is connected with multi-channel video reception optical transceiver is through the fpga chip of fast acquisition of digital video signals, the RS485 chip of processing control signals; With digital video signal and RS485 control signal that said 8 light directions convergence is come, set a to optical fiber exports far-end to.
4. digital video according to claim 1 can't harm the relaying multiplexer; It is characterized in that: the condition of power supply that said power module and said power access end mouth are actual according to the user; Configuration AC power supply module or DC power supplier; And can select different operating voltages, possess lightning protection function and reversal connection and receive function.
5. digital video according to claim 1 can't harm the relaying multiplexer; It is characterized in that: said serial ports network management interface is the RJ45 socket; Webmaster cable and webmastering software platform through special use; Observe the operating state of digital video lossless relaying multiplexer, single channel video transmission optical transceiver, multi-channel video reception light end synchronously; And the reception of controlling the digital video signal of 8 light directions enables to open or close, and webmaster signal processing is wherein realized through serial port chip and single chip control module.
6. digital video according to claim 1 can't harm the relaying multiplexer, it is characterized in that: said working station indicator comprises system works indicator light WK; The light signal of 8 single channel video transmission optical transceivers is lost alarm indicator LA～LH; Multi-channel video receives the light signal of optical transceiver and loses indicator light OLS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206462105U CN202282835U (en) | 2010-12-06 | 2010-12-06 | Lossless relay multiplexer for digital videos |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206462105U CN202282835U (en) | 2010-12-06 | 2010-12-06 | Lossless relay multiplexer for digital videos |
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| Publication Number | Publication Date |
|---|---|
| CN202282835U true CN202282835U (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010206462105U Expired - Fee Related CN202282835U (en) | 2010-12-06 | 2010-12-06 | Lossless relay multiplexer for digital videos |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347173A (en) * | 2013-06-28 | 2013-10-09 | 成都思迈科技发展有限责任公司 | Video surveillance transmission equipment with plurality of power supplies |
| CN107579781A (en) * | 2017-10-18 | 2018-01-12 | 成都优博创通信技术股份有限公司 | Optical signal receiving module and optica signal receivingl transmitting apparatus |
-
2010
- 2010-12-06 CN CN2010206462105U patent/CN202282835U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103347173A (en) * | 2013-06-28 | 2013-10-09 | 成都思迈科技发展有限责任公司 | Video surveillance transmission equipment with plurality of power supplies |
| CN107579781A (en) * | 2017-10-18 | 2018-01-12 | 成都优博创通信技术股份有限公司 | Optical signal receiving module and optica signal receivingl transmitting apparatus |
| CN107579781B (en) * | 2017-10-18 | 2024-04-12 | 成都优博创通信技术股份有限公司 | Optical signal receiving module and optical signal transmitting/receiving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20131206 |