CN103269422A - Video signal transmission equipment and video signal transmission method - Google Patents
Video signal transmission equipment and video signal transmission method Download PDFInfo
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- CN103269422A CN103269422A CN2013101497638A CN201310149763A CN103269422A CN 103269422 A CN103269422 A CN 103269422A CN 2013101497638 A CN2013101497638 A CN 2013101497638A CN 201310149763 A CN201310149763 A CN 201310149763A CN 103269422 A CN103269422 A CN 103269422A
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Abstract
The invention relates to the technical field of video signal transmission, in particular to video signal transmission equipment and a video signal transmission method. According to the video signal transmission equipment, a decoder is connected with a video signal and connected with a transmitter, and the transmitter is connected with an output interface; the output interface is connected with an input interface through a line; a receiver is connected with the input interface, an AD plate image processor is connected with a display screen; the connecting line between the output interface and the input interface is a cat twisted-pair cable. Due to the facts that the transmitter is additionally arranged in the image processor, the receiver is additionally arranged on a tiled screen AD plate, and the cat twisted-pair cable is used for transmitting, linear transmission distance of video signals output by the image processor can reach 70-100m, and distortion can not exist. The price of the cat twisted-pair cable is lower than that of a traditional video transmission wire, and while the problem of long-distance transmission of the video signals is solved, additional cost caused by the video transmission wire can be reduced.
Description
Technical field
The present invention relates to the video signal transmission technical field, more specifically, relate to a kind of video signal transmission equipment and transmission method thereof.
Background technology
Liquid crystal-spliced screen can use as display separately, can be spliced into jumbotron again and use.According to different user demands, realize that the variable changeable large-size screen monitors function that also can diminish greatly: Dan Ping cuts apart that demonstrations, single screen show separately, combination in any shows, full frame liquid crystal-spliced, dual splicing liquid crystal display screen splicing, perpendicular screen demonstration, the optional compensation of framing mask or covering, support roaming, the convergent-divergent of digital signal to stretch, stride the screen demonstration, the setting of various demonstration prediction schemes and operation, full HD signal is handled in real time.
In the installation wiring process of extensive mosaic screen engineering, be subjected to the restriction of locus, the application scenarios of the long Distance Transmission of vision signal occurs now and then.Traditional HD video interface on the present image processor comprises VGA, DVI, HDMI etc., these interfaces its maximum directly transmission range under high-resolution situation is that 15-30 rice does not wait, in large-scale mosaic screen engineering, possibly can't satisfy the wiring demand.Existing solution generally is to increase a signal amplifier as relaying, increases transmission range, but because the interference signal in the circuit also can be exaggerated, therefore saturated phenomenon may occur, thereby cause image fault.And conventional video transmission wire rod cost is higher, in the middle of the engineering wiring of this long distance, can produce the cost of a large portion.
Summary of the invention
Technical problem to be solved by this invention provides a kind ofly to be grown Distance Transmission and not to produce distortion and reduce the video signal transmission equipment of video transmission line material cost, further, provides the transmission method of using this transmission equipment.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of video signal transmission equipment, wherein, comprise image processor, output interface, input interface, mosaic screen AD plate and display screen, described image processor comprises decoder, the transmitter that is connected with decoder, decoder is connected with vision signal, and decoder connects transmitter, and transmitter connects output interface; Output interface connects input interface by circuit; The AD plate graphic process unit that described mosaic screen AD plate comprises receiver, is connected with receiver, receiver connects input interface, and AD plate graphic process unit connects display screen; Connection line between described output interface and the input interface is super Category-5 twisted pair, and described output interface and receiving interface are the RJ45 interface.
By increasing a transmitter at image processor, the video signal data that transmits is repacked, abandon the classical signal transmission cable, the super Category-5 twisted pair of using the RJ45 interface instead carries out signal directly to be transmitted; Recipient's mosaic screen AD plate carries out decompress(ion) by increasing a receiver to the data of receiving, and recover available demonstration data and be directly used in the mosaic screen demonstration that the AD plate connects afterwards, and the signal type of the source video of no longer encoding back.Owing to send and receiver is built on the circuit board of image processor and mosaic screen AD plate in respectively, therefore native system with at present common pass through the outside independently the special signal amplifier compare, have more succinct mode of connection, need not externally more plug-in special-purpose signal amplifiers again.Simultaneously because the video input signals numerous types (VGA/DVI/HDMI/YcbCr/CVBS/SDI etc. is arranged) that image processor itself is supported, therefore, this equipment can be supported in grows Distance Transmission on the super Category-5 twisted pair, signal type also be not limited to a certain.
And owing to used super Category-5 twisted pair as transmission medium, make and utilize indoor existing netting twine to connect up to become possibility, thereby bigger freedom has been arranged when making the wiring of mosaic screen engineering; There is super Category-5 twisted pair interface to suppress voluntarily again, so the on-the-spot cutting as required of wire rod length, make more neatly compactness of wiring.In addition, the price of super Category-5 twisted pair price with respect to traditional video transmission line material is cheaper, when solving the long Distance Transmission problem of vision signal, can reduce the extra cost that the video transmission line material causes.
Further, described image processor also comprises first ethernet switching module, and first ethernet switching module is connected with transmitter; Described mosaic screen AD plate also comprises second ethernet switching module, and second ethernet switching module is connected with receiver.This equipment is except can transmission video signal, image processor also comprises first ethernet switching module, support is packed Ethernet data and vision signal simultaneously, receiver is by recovering two class data respectively to export after unpacking, mosaic screen AD plate also comprises second ethernet switching module, Ethernet data is delivered in second ethernet switching module, thereby the existing netting twine within the walls that may take when making wiring still can further reduce wiring cost in the engineering construction normally as the network service cable.
A kind of video-signal transmission method utilizes video signal transmission equipment, may further comprise the steps:
S1. decoder receiving video signals and vision signal is converted to digital format signal, the number digital format signals are delivered to transmitter, and transmitter is delivered to output interface after with digital format signal compression packing;
S2. digital format signal is sent to the receiver of mosaic screen AD plate by super Category-5 twisted pair, receiver carries out decompress(ion) to the digital format signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen.
First ethernet switching module is delivered to transmitter with Ethernet data among the described step S1, transmitter is delivered to output interface after digital format signal and Ethernet data signal are compressed packing together, among the described step S2, receiver carries out decompress(ion) to digital format signal and the Ethernet data signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen, and Ethernet data is delivered to second ethernet switching module.
Compared with prior art, beneficial effect is: the present invention is by setting up transmitter in image processor, mosaic screen AD plate is set up receiver, and use super Category-5 twisted pair to transmit, can make the transmission range of the vision signal straight line of exporting on the image processor reach 70-100 rice and be unlikely to produce distortion.The price of super Category-5 twisted pair price with respect to traditional video transmission line material is cheaper, when solving the long Distance Transmission problem of vision signal, can reduce the extra cost that the video transmission line material causes.
Description of drawings
Fig. 1 is the whole principle schematic of present embodiment 1.
Fig. 2 is the whole principle schematic of present embodiment 2.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of video signal transmission equipment, wherein, comprise image processor, output interface, input interface, mosaic screen AD plate and display screen, described image processor comprises decoder, the transmitter that is connected with decoder, decoder is connected with vision signal, and decoder connects transmitter, and transmitter connects output interface; Output interface connects input interface by circuit; The AD plate graphic process unit that described mosaic screen AD plate comprises receiver, is connected with receiver, receiver connects input interface, and AD plate graphic process unit connects display screen; Connection line between described output interface and the input interface is super Category-5 twisted pair, and described output interface and receiving interface are the RJ45 interface.
By increasing a transmitter at image processor, the video signal data that transmits is repacked, abandon the classical signal transmission cable, the super Category-5 twisted pair of using the RJ45 interface instead carries out signal directly to be transmitted; Recipient's mosaic screen AD plate carries out decompress(ion) by increasing a receiver to the data of receiving, and recover available demonstration data and be directly used in the mosaic screen demonstration that the AD plate connects afterwards, and the signal type of the source video of no longer encoding back.Owing to send and receiver is built on the circuit board of image processor and mosaic screen AD plate in respectively, therefore native system with at present common pass through the outside independently the special signal amplifier compare, have more succinct mode of connection, need not externally more plug-in special-purpose signal amplifiers again.Simultaneously because the video input signals numerous types (VGA/DVI/HDMI/YcbCr/CVBS/SDI etc. is arranged) that image processor itself is supported, therefore, this equipment can be supported in grows Distance Transmission on the super Category-5 twisted pair, signal type also be not limited to a certain.
And owing to used super Category-5 twisted pair as transmission medium, make and utilize indoor existing netting twine to connect up to become possibility, thereby bigger freedom has been arranged when making the wiring of mosaic screen engineering; There is super Category-5 twisted pair interface to suppress voluntarily again, so the on-the-spot cutting as required of wire rod length, make more neatly compactness of wiring.In addition, the price of super Category-5 twisted pair price with respect to traditional video transmission line material is cheaper, when solving the long Distance Transmission problem of vision signal, can reduce the extra cost that the video transmission line material causes.
Super Category-5 twisted pair also be adopt 4 around to 1 tensile cord, color and Category-5 twisted pair that line is right are identical, are respectively Bai Cheng, orange, green, green, Bai Lan, indigo plant, white brown and brown in vain.Bare copper wire is 24AWG for the 0.51mm(wire gauge directly), insulated wire directly is 0.92mm, and the UTP cable size is 5mm, and the RJ45 interface is generally used for transfer of data, the modal network interface card interface that is applied as.
A kind of video-signal transmission method utilizes video signal transmission equipment, may further comprise the steps:
S1. decoder receiving video signals and vision signal is converted to digital format signal, digital format signal is delivered to transmitter, and transmitter is delivered to output interface after with digital format signal compression packing;
S2. digital format signal is sent to the receiver of mosaic screen AD plate by super Category-5 twisted pair, receiver carries out decompress(ion) to the digital format signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen.
Embodiment 2
As shown in Figure 2, image processor also comprises first ethernet switching module, and first ethernet switching module is connected with transmitter; Described mosaic screen AD plate also comprises second ethernet switching module, and second ethernet switching module is connected with receiver.This equipment is except can transmission video signal, image processor also comprises first ethernet switching module, support is packed Ethernet data and vision signal simultaneously, receiver is by recovering two class data respectively to export after unpacking, mosaic screen AD plate also comprises second ethernet switching module, Ethernet data is delivered in second ethernet switching module, thereby the existing netting twine within the walls that may take when making wiring still can further reduce wiring cost in the engineering construction normally as the network service cable.
Its concrete implementation step is on the basis of embodiment 1, first ethernet switching module is delivered to transmitter with Ethernet data in step S1, transmitter is delivered to output interface after digital format signal and Ethernet data signal are compressed packing together, among the described step S2, receiver carries out decompress(ion) to digital format signal and the Ethernet data signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen, and Ethernet data is delivered to second ethernet switching module.
All the other annexations of present embodiment and operation principle and embodiment 1 are identical, no longer narrate at this.
The above only is preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can do the improvement of some suitable actual conditions to the technical scheme of invention.Therefore, protection scope of the present invention is not limited thereto, and those of skill in the art are any to be included within protection range of the present invention based on non-material change on the technical solution of the present invention.
Claims (5)
1. video signal transmission equipment, it is characterized in that, comprise image processor, output interface, input interface, mosaic screen AD plate and display screen, described image processor comprises decoder, the transmitter that is connected with decoder, decoder is connected with vision signal, decoder connects transmitter, and transmitter connects output interface; Output interface connects input interface by circuit; The AD plate graphic process unit that described mosaic screen AD plate comprises receiver, is connected with receiver, receiver connects input interface, and AD plate graphic process unit connects display screen; Connection line between described output interface and the input interface is super Category-5 twisted pair.
2. a kind of video signal transmission equipment according to claim 1 is characterized in that, described output interface and input interface are the RJ45 interface.
3. a kind of video signal transmission equipment according to claim 1 is characterized in that described image processor also comprises first ethernet switching module, and first ethernet switching module is connected with transmitter; Described mosaic screen AD plate also comprises second ethernet switching module, and second ethernet switching module is connected with receiver.
4. a video-signal transmission method is characterized in that utilizing the arbitrary described video signal transmission equipment of claim 1 to 3, may further comprise the steps:
S1. decoder receiving video signals and vision signal is converted to digital format signal, digital format signal is delivered to transmitter, and transmitter is delivered to output interface after with digital format signal compression packing;
S2. digital format signal is sent to the receiver of mosaic screen AD plate by super Category-5 twisted pair, receiver carries out decompress(ion) to the digital format signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen.
5. a kind of video-signal transmission method according to claim 4, it is characterized in that, first ethernet switching module is delivered to transmitter with Ethernet data among the described step S1, transmitter is delivered to output interface after digital format signal and Ethernet data signal are compressed packing together, among the described step S2, receiver carries out decompress(ion) to digital format signal and the Ethernet data signal of receiving, recover available vision signal, available vision signal is handled the back through AD plate graphic process unit and is shown at display screen, and Ethernet data is delivered to second ethernet switching module.
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| CN2013101497638A CN103269422A (en) | 2013-04-26 | 2013-04-26 | Video signal transmission equipment and video signal transmission method |
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| CN2013101497638A CN103269422A (en) | 2013-04-26 | 2013-04-26 | Video signal transmission equipment and video signal transmission method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106652891A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN108230976A (en) * | 2016-12-22 | 2018-06-29 | 乐金显示有限公司 | Display device |
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| US20050198687A1 (en) * | 2004-03-02 | 2005-09-08 | Chris Miller | High-quality twisted-pair transmission line system for high-resolution video |
| CN101094376A (en) * | 2006-06-23 | 2007-12-26 | Rgb系统公司 | Method and apparatus for automatic compensation of video signal losses from transmission over conductors |
| CN201846449U (en) * | 2010-10-11 | 2011-05-25 | 大道计算机技术(上海)有限公司 | Large-screen IP (internet protocol) video stream access device |
| CN102647585A (en) * | 2012-05-02 | 2012-08-22 | 上海纬而视数码科技有限公司 | Universal high definition (HD) video signal collecting and coding device and data transmission method |
| CN102740128A (en) * | 2012-06-12 | 2012-10-17 | 康佳集团股份有限公司 | Video transmission device with surfing function and implementation method thereof |
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2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20050198687A1 (en) * | 2004-03-02 | 2005-09-08 | Chris Miller | High-quality twisted-pair transmission line system for high-resolution video |
| CN101094376A (en) * | 2006-06-23 | 2007-12-26 | Rgb系统公司 | Method and apparatus for automatic compensation of video signal losses from transmission over conductors |
| CN201846449U (en) * | 2010-10-11 | 2011-05-25 | 大道计算机技术(上海)有限公司 | Large-screen IP (internet protocol) video stream access device |
| CN102647585A (en) * | 2012-05-02 | 2012-08-22 | 上海纬而视数码科技有限公司 | Universal high definition (HD) video signal collecting and coding device and data transmission method |
| CN102740128A (en) * | 2012-06-12 | 2012-10-17 | 康佳集团股份有限公司 | Video transmission device with surfing function and implementation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108230976A (en) * | 2016-12-22 | 2018-06-29 | 乐金显示有限公司 | Display device |
| CN106652891A (en) * | 2016-12-26 | 2017-05-10 | 西安诺瓦电子科技有限公司 | Scanning card |
| CN106652891B (en) * | 2016-12-26 | 2019-03-22 | 西安诺瓦电子科技有限公司 | Scanning card |
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