CN105025277A - Optical fiber transmission system for LED display screen - Google Patents
Optical fiber transmission system for LED display screen Download PDFInfo
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- CN105025277A CN105025277A CN201510442549.0A CN201510442549A CN105025277A CN 105025277 A CN105025277 A CN 105025277A CN 201510442549 A CN201510442549 A CN 201510442549A CN 105025277 A CN105025277 A CN 105025277A
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Abstract
The invention provides an optical fiber transmission system for an LED display screen. The system includes a power supply box used for supplying power, an upper computer, video processing units, an SFP module transmitting unit used for converting video electric signals to optical signals, an SFP optical module receiving unit used for converting optical signals to electric signals, a signal processing unit used for processing electric signals, and a display drive unit used for converting video signals of the signal processing unit to differential signals and driving the LED display screen. The power supply box is connected to the video processing units and the signal processing unit through power lines. The video processing units are connected to the SFP optical module transmitting unit. The SFP optical module transmitting unit is connected to the SFP optical module receiving unit through an optical fiber. The signal processing unit is connected to the SFP optical module receiving unit and the display drive unit separately. The video processing units are in cascade connection through DVI wires. Therefore, long-range large-screen LED display screen video display is realized.
Description
Technical field
The embodiment of the present invention relates to LED technical field of video transmission, particularly relates to a kind of LED display fiber optic transmission system.
Background technology
At present, LED Display Technique reaches its maturity, and LED display control system is mainly used to real-time display video, picture and text, notice etc.One of its governor circuit effect is exactly input and the transmission of being responsible for data.Normally governor circuit receives the data that host computer is sent, and through controller process, adopts wire cable as transmission medium, sends the video data after process to display system, finally reach the object of display.
Traditional LED display control system mostly selects twisted-pair feeder or coaxial cable over a transmission medium, and due to the defect of self, their transmission rate, transmission range has had certain limitation.
Summary of the invention
The embodiment of the present invention provides a kind of LED display fiber optic transmission system, to overcome the problem that in prior art, LED display transmission rate is slow, transmission range is near.
LED display fiber optic transmission system of the present invention, comprising:
At least one is for providing the power supply cassette for supplying of power supply, host computer, at least one video processing unit, at least one is for being converted to the SFP optical module transmitting element of light signal by video electrical signal, at least one is for transferring the SFP optical module receiving element of the signal of telecommunication to by described light signal, at least one is for the treatment of the signal processing unit of the signal of telecommunication of described optical module receiving element, at least one is for converting the vision signal of signal processing unit to differential signal and the display driver unit of driving LED display screen,
Described power supply cassette for supplying is connected and video processing unit, signal processing unit by power line, described video processing unit is connected with described SFP optical module transmitting element, described SFP optical module transmitting element is connected with described SFP optical module receiving element by optical fiber, described signal processing unit is connected with described SFP optical module receiving element, display driver unit respectively, by the cascade of DVI line between described video processing unit.
Further, described video processing unit, comprising:
Video Quality Metric for being sent by host computer is the video conversion module of component signal, the video processor being used for being carried out by component signal processing and storing, be used for sending to video processor the video control module of video control signal;
Described video processor is connected with described video conversion module, video control module and described SFP optical module transmitting element respectively.
Further, described video conversion module comprises: the DVI for receiver, video inputs submodule and the DVI decoding sub-module for by Video Quality Metric being R, G, B component signal, described DVI inputs submodule one end and is connected with host computer, the other end is connected with described DVI decoding sub-module, and described DVI decoding sub-module is connected with described video processor.
Further, described video conversion module also comprises: for DVI decoder module being converted to the DVI encoding submodule of the second vision signal, being used for described second vision signal to be sent to the DVI output sub-module of the second video processing unit.
The beneficial effect of LED display fiber optic transmission system of the present invention is: transmission frequency bandwidth, message capacity are large; Loss is low; Wire diameter is thin, lightweight, and raw material is quartz, saves metal material, is conducive to resource reasonable employment; Insulation, electromagnetism interference performance is strong; Also have that resistance to corrosion is strong, capability of resistance to radiation is strong, reelability is good, without electric spark, reveal the advantages such as little, strong security.Adopt Optical Fiber Transmission well to solve twisted-pair feeder or co-axial cables transport speed is slow, transmission range is near problem, also save metals resources simultaneously.Achieve remote, the LED display video display of large-screen.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is LED display fiber optic transmission system structural representation of the present invention;
Fig. 2 is LED display fiber optic transmission system video processing unit structural representation of the present invention;
Fig. 3 is LED display fiber optic transmission system SFP optical module transmitting element circuit theory diagrams of the present invention;
Fig. 4 is LED display fiber optic transmission system SFP optical module receiving element circuit theory diagrams of the present invention;
Fig. 5 is LED display fiber optic transmission system display driver element circuit schematic diagram of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 1 is LED display fiber optic transmission system structural representation of the present invention, and as shown in Figure 1, the present embodiment system, comprising:
Host computer 101, at least one is for providing the power supply cassette for supplying 102 of power supply, at least one video processing unit 103, at least one is for being converted to the SFP optical module transmitting element 104 of light signal by video electrical signal, at least one is for transferring the SFP optical module receiving element 105 of the signal of telecommunication to by described light signal, at least one is for the treatment of the signal processing unit 106 of the signal of telecommunication of described optical module receiving element, at least one is for converting the vision signal of signal processing unit to differential signal and the display driver unit 107 of driving LED display screen,
Described power supply cassette for supplying 102 is connected and video processing unit 103, signal processing unit 106 by power line, described video processing unit 103 is connected with described SFP optical module transmitting element 104, described SFP optical module transmitting element 104 is connected with described SFP optical module receiving element 105 by optical fiber, described signal processing unit 106 is connected with described SFP optical module receiving element 105, display driver unit 107 respectively, by the cascade of DVI line between described video processing unit.
In the present embodiment LED display by SFP optical module transmitting element and SFP optical module receiving element by the transmission of video after video processing unit process to signal processing unit, solve twisted-pair feeder or co-axial cables transport speed is slow, transmission range is near problem.
Further, described video processing unit, comprising:
Video Quality Metric for being sent by host computer is the video conversion module of component signal, the video processor being used for being carried out by component signal processing and storing, be used for sending to video processor the video control module of video control signal;
Described video processor is connected with described video conversion module, video control module and described SFP optical module transmitting element respectively.
Further, described video conversion module comprises: the DVI for receiver, video inputs submodule and the DVI decoding sub-module for by Video Quality Metric being R, G, B component signal, described DVI inputs submodule one end and is connected with host computer, the other end is connected with described DVI decoding sub-module, and described DVI decoding sub-module is connected with described video processor.
Further, described video conversion module also comprises: for DVI decoder module being converted to the DVI encoding submodule of the second vision signal, being used for described second vision signal to be sent to the DVI output sub-module of the second video processing unit.
Specifically, as shown in Figure 2, the present embodiment video processing unit comprises video conversion module, video processor, video control module, wherein video conversion module comprises: DVI inputs submodule, DVI decoding sub-module, DVI encoding submodule, DVI output sub-module, the video that DVI input block is transmitted by DVI interface host computer, this video decode is that R, G, B component signal transfers to video processor, video control module controls video processor and sends frame of video to SFP optical module transmitting element by DVI decoder module.Each video processor at most can to four SFP optical modules output signal, and every road signal at least can a control 1024*768 signaling point, a LED on each signaling point correspondence LED display.Native system comprises at least one video processing unit, therefore can realize the LED display display video of large-screen.In the present embodiment, video control module adopts chip model to be STM32F103VCT6.As shown in Figure 3, there are four SFP_CONN modules in SFP optical module transmitting element, in each module, have GTP_RX_P, GTP_RX_N, GTP_TX_P, GTP_TX_N respectively.This pin is the output pin that video electrical signal is converted into light signal by SFP optical module transmitting element.SFP optical module receiving element also has GTP_RX_P, GTP_RX_N, GTP_TX_P, GTP_TX_N as shown in Figure 4, and this pin is the input pin that light signal is converted into video electrical signal by SFP optical module receiving element.
Convert the vision signal of signal processing unit to differential signal and the display driver element circuit schematic diagram of driving LED display screen as shown in Figure 5, pin MOD SDAT0, MOD SCLK0, MODSDAT1, MOD SCLK1 are the frame signal of video resource, and MOD SDAT0+, MOD SDAT0-, MOD SCLK0+, MOD SCLK0-, MOD SDAT1+, MOD SDAT1-, MODSCLK1+, MOD SCLK1-are the differential signal of LED display display.
The beneficial effect of LED display fiber optic transmission system of the present invention is: transmission frequency bandwidth, message capacity are large; Loss is low; Wire diameter is thin, lightweight, and raw material is quartz, saves metal material, is conducive to resource reasonable employment; Insulation, electromagnetism interference performance is strong; Also have that resistance to corrosion is strong, capability of resistance to radiation is strong, reelability is good, without electric spark, reveal the advantages such as little, strong security.Adopt Optical Fiber Transmission well to solve twisted-pair feeder or co-axial cables transport speed is slow, transmission range is near problem, also save metals resources simultaneously.Achieve remote, the LED display video display of large-screen.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (4)
1. a LED display fiber optic transmission system, is characterized in that, comprising:
At least one is for providing the power supply cassette for supplying of power supply, host computer, at least one video processing unit, at least one is for being converted to the SFP optical module transmitting element of light signal by video electrical signal, at least one is for transferring the SFP optical module receiving element of the signal of telecommunication to by described light signal, at least one is for the treatment of the signal processing unit of the signal of telecommunication of described optical module receiving element, at least one is for converting the vision signal of signal processing unit to differential signal and the display driver unit of driving LED display screen,
Described power supply cassette for supplying is connected and video processing unit, signal processing unit by power line, described video processing unit is connected with described SFP optical module transmitting element, described SFP optical module transmitting element is connected with described SFP optical module receiving element by optical fiber, described signal processing unit is connected with described SFP optical module receiving element, display driver unit respectively, by the cascade of DVI line between described video processing unit.
2. system according to claim 1, is characterized in that, described video processing unit, comprising:
Video Quality Metric for being sent by host computer is the video conversion module of component signal, the video processor being used for being carried out by component signal processing and storing, be used for sending to video processor the video control module of video control signal;
Described video processor is connected with described video conversion module, video control module and described SFP optical module transmitting element respectively.
3. system according to claim 1 and 2, it is characterized in that, described video conversion module comprises: the DVI for receiver, video inputs submodule and the DVI decoding sub-module for by Video Quality Metric being R, G, B component signal, described DVI inputs submodule one end and is connected with host computer, the other end is connected with described DVI decoding sub-module, and described DVI decoding sub-module is connected with described video processor.
4. system according to claim 1 and 2, it is characterized in that, described video conversion module also comprises: for DVI decoder module being converted to the DVI encoding submodule of the second vision signal, being used for described second vision signal to be sent to the DVI output sub-module of the second video processing unit.
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| CN201510442549.0A CN105025277A (en) | 2015-07-24 | 2015-07-24 | Optical fiber transmission system for LED display screen |
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Cited By (4)
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| CN110223618A (en) * | 2019-06-06 | 2019-09-10 | 深圳市福瑞达显示技术有限公司 | A kind of display based on fan screen |
| CN111918046A (en) * | 2020-08-11 | 2020-11-10 | 深圳市注目视讯技术有限公司 | Novel movie server control display system |
| CN112995751A (en) * | 2019-12-18 | 2021-06-18 | 西安诺瓦星云科技股份有限公司 | Data transmission method and system |
| CN114071093A (en) * | 2020-07-29 | 2022-02-18 | 西安诺瓦星云科技股份有限公司 | Data transmission method, device and system |
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Application publication date: 20151104 |