CN101986382B - Wireless network transmission RGB signal processing method for multi-screen splicing display wall - Google Patents
Wireless network transmission RGB signal processing method for multi-screen splicing display wall Download PDFInfo
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- CN101986382B CN101986382B CN 200910055577 CN200910055577A CN101986382B CN 101986382 B CN101986382 B CN 101986382B CN 200910055577 CN200910055577 CN 200910055577 CN 200910055577 A CN200910055577 A CN 200910055577A CN 101986382 B CN101986382 B CN 101986382B
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Abstract
The invention relates to a method for processing a wireless network transmission RGB signal of a DLP (digital light processing) multi-screen splicing display wall. The method comprises the following steps: a RGB signal end computer automatically runs a client; the client captures a PC display image in real time to code instantaneously; the client encrypts and packages the coded PC display image after a command of a central control end is received, and sends the coded PC display image through a WLAN (wireless local area network); an embedded host computer receives data through the WLAN; a decoder decodes the received data, and converts the data into DVI (digital video interactive) signal output after the command of the central control end is received; the DVI signal output is accessed to a multi-screen splicing processor; the multi-screen splicing processor processes the signal after the command of the central control end is received, including amplifying, reducing an moving; and the DLP splicing display wall displays the signal after the command of the central control end is received. Compared with the prior art, the method has the advantages of low cost, capability of wireless extension of the number of RGB signal sources and the like, and is easy to construct.
Description
Technical field
The present invention relates to the disposal route of Internet Transmission rgb signal, relate in particular to a kind of disposal route of wireless network transmission RGB signal of the DLP of being applicable to multi-screen splicing display wall.
Background technology
In be spliced into main demonstration and control technology with DLP, be used for realizing that it is one of important technology wherein that rgb signal (computer picture) shows on the multi-screen splicing wall.Wireless network transmission RGB signal is a kind of special, display application of requiring more much higher screen combination, can realize showing on DLP splicing large-size screen monitors neatly when multiple computers need not to connect loaded down with trivial details cable.In recent years, along with the development of software and hardware technology, the transmission of rgb signal had been widely used in the pulpit, field such as electric power, track traffic, public security, government and had used.
Rgb signal transmits from DLP multi-screen splicing wall, and its transmission technology can be divided into: analog transmission, digital transmission, Internet Transmission.Analog transmission is disturbed obviously, can't realize the perfect demonstration of high-definition screen; Digital transmission is disturbed few, clear picture, and long Distance Transmission cost can increase greatly; The general networks transmission is subjected to the limiting processing speed of Internet resources, bandwidth slow.
At present, mainly contain in the transmission process of DLP multi-screen splicing wall to rgb signal:
1) analog transmission: rgb signal source access RGB divider, wherein one the tunnel receive local display echo, DLP multi-screen splicing wall is received by the RGB cable in another road, if rgb signal is many, increase rgb matrix at DLP multi-screen splicing wall front end, intangible cost increases.The interference that this analog transmission is had the factors such as peripherals, electric power of majeure, and the RGB cable requires to adopt the thicker decay that reduces signal, like this construction wiring increased very large difficulty.
2) digital transmission: digital transmission has the DVI-D transmission, require to be equipped with DVI-D matrix and DVI-D distribution converter, and DVI signal transmission can only short-distance transmission, general DVI cable can pass 5 to 10 meters, and be far from being enough to DLP multi-screen splicing wall, realize that application also need increase the elongated line driving arrangement on DLP multi-screen splicing wall, cost increases greatly like this.Another kind of digital transmission adopts the optical fiber mode exactly, processes by expensive light end transceiver and fiber matrix, and optical fiber cable wiring, joint connection construction cost are increased greatly.Employing digital transmission cost is high, construction requirement is high, so use case is less.
3) Internet Transmission: the rgb signal speed slow (about 10 frames/second) of passing through at present Internet Transmission on DLP multi-screen splicing wall, can't show real-time vision signal, particularly high-definition signal (720P/1080P) more can not transmit demonstration at present, and simultaneously can not Multiple-shower because the multichannel colleague show take Internet resources, cpu resource causes the equipment paralysis.
Usually, at DLP multi-screen splicing wall, the rgb signal transmission process is more or less all existed a bit not enough, often adopt conventional simulation and Internet Transmission to sacrifice picture quality, the high-end expensive digital transmission that just adopts.Expand rgb signal quantity to increase matrix in large-scale splicing project, wiring complexity like this, cost increase.
Summary of the invention
Purpose of the present invention is exactly the defective that exists in order to overcome above-mentioned prior art, provides a kind of low cost, construction simply to be applicable to the disposal route of the wireless network transmission RGB signal of DLP multi-screen splicing display wall.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall, the method adopts the fast wireless network technology, and processing procedure comprises the following steps:
(1) the automatic running client of rgb signal end computer;
(2) client intercepts in real time PC display frame and immediately encodes;
(3) after client is received the instruction of centralized control end, the PC display frame after coding is encrypted packing and sends by WLAN;
(4) demoder is by the WLAN receive data;
(5) after demoder receives the instruction of centralized control end, to the decoding data accepted and change into the output of DVI signal;
(6) DVI signal output access multi-screen splicing processor;
(7) the multi-screen splicing processor is processed signal after receiving the instruction of centralized control end, comprises amplification, dwindles, mobile;
(8) the DLP spliced display wall shows signal after receiving the instruction of centralized control end;
(9) the multichannel rgb signal shows that repeating above step gets final product.
Described centralized control end adopts client/server (C/S) framework, and equipment set is formed WLAN (wireless local area network), and described centralized control end is identified control by the IP address to controlled terminal.
Described DLP multi-screen splicing display wall comprises low resolution, high resolving power, the tiled display large-size screen monitors that splice and combine arbitrarily.
Described controlled terminal comprises client, demoder, multi-screen splicing processor, DLP spliced display wall.
Compared with prior art, the present invention has that obvious low cost, construction are simple, rgb signal source quantity can wirelessly expand (can reach 256 the tunnel), has the character matrix function.Simple, convenient by the control of IP address mode centralized operation to each equipment, display effect can reach digital transmission and process.
Description of drawings
Fig. 1 is the process flow diagram of disposal route of the wireless network transmission RGB signal of a kind of DLP of being applicable to multi-screen splicing display wall of the present invention;
Fig. 2 is the system schematic of disposal route of the wireless network transmission RGB signal of a kind of DLP of being applicable to multi-screen splicing display wall of the present invention.
Embodiment
The present invention will be further described below in conjunction with specific embodiment.
Embodiment
As shown in Figure 1 and Figure 2, a kind of disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall, the method adopts the fast wireless network technology, and processing procedure comprises the following steps:
At last, the multichannel rgb signal shows that repeating above step gets final product.
Described centralized control end 9 adopts client/server (C/S) frameworks, and equipment set is formed WLAN (wireless local area network), and described centralized control end 9 is identified control by the IP address to controlled terminal.
Described DLP multi-screen splicing display wall 12 comprises low resolution, high resolving power, the tiled display large-size screen monitors that splice and combine arbitrarily.
Described controlled terminal comprises client 13, demoder 14, multi-screen splicing processor 11, DLP spliced display wall 12.
Described demoder 14, splicing processor 11, DLP multi-screen splicing display wall 12 have formed embedded host 10.
The present invention is combined into the character matrix of a super large to a plurality of client 13 images that independently disperse by wireless network, by after centralized control perfectly tiled display on DLP multi-screen splicing display wall 12.Realize the splicing of overall signal, across screen, roaming, switch Graphics Processing, and display speed is fast, supports 720/1080P high-definition signal Fast synchronization to show.Any PC in WLAN (wireless local area network) can be used as centralized control end 9 and carries out the control that any computer picture shows, far-end PC Image Coding outputs to multi-screen splicing processor 11 by wireless network transmissions to demoder 13 decodings after encrypting packing, then shows on DLP multi-screen splicing display wall 12.
Claims (4)
1. a disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall, is characterized in that, the method adopts radio network technique, and processing procedure comprises the following steps:
(1) the automatic running client of rgb signal end computer;
(2) client intercepts in real time PC display frame and immediately encodes;
(3) after client is received the instruction of centralized control end, the PC display frame after coding is encrypted packing and sends by WLAN;
(4) demoder is by the WLAN receive data;
(5) after demoder receives the instruction of centralized control end, to the decoding data accepted and change into the output of DVI signal;
(6) DVI signal output access multi-screen splicing processor;
(7) the multi-screen splicing processor is processed signal after receiving the instruction of centralized control end, comprises amplification, dwindles, mobile;
(8) the DLP spliced display wall shows signal after receiving the instruction of centralized control end;
(9) the multichannel rgb signal shows that repeating above step gets final product.
2. a kind of disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall according to claim 1, it is characterized in that, described centralized control end adopts client/server (C/S) framework, equipment set is formed WLAN (wireless local area network), and described centralized control end is identified control by the IP address to controlled terminal.
3. a kind of disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall according to claim 1, it is characterized in that, described DLP multi-screen splicing display wall comprises low resolution, high resolving power, the tiled display large-size screen monitors that splice and combine arbitrarily.
4. a kind of disposal route that is applicable to the wireless network transmission RGB signal of DLP multi-screen splicing display wall according to claim 2, is characterized in that, described controlled terminal comprises client, demoder, multi-screen splicing processor, DLP spliced display wall.
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| CN 200910055577 CN101986382B (en) | 2009-07-29 | 2009-07-29 | Wireless network transmission RGB signal processing method for multi-screen splicing display wall |
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| CN 200910055577 CN101986382B (en) | 2009-07-29 | 2009-07-29 | Wireless network transmission RGB signal processing method for multi-screen splicing display wall |
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| CN101986382A CN101986382A (en) | 2011-03-16 |
| CN101986382B true CN101986382B (en) | 2013-05-08 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102223467B (en) * | 2011-04-13 | 2016-01-20 | 北京彩讯科技股份有限公司 | A kind of long-range control method of video processing equipment and long-distance video processing device |
| CN102736885A (en) * | 2012-06-28 | 2012-10-17 | 江苏清投视讯科技有限公司 | Multi-screen display technology based on wireless transmission |
| CN103021374A (en) * | 2012-12-05 | 2013-04-03 | 江苏清投视讯科技有限公司 | Display image correction system of digital light processor (DLP) spliced large screen |
| CN104113718A (en) * | 2013-04-16 | 2014-10-22 | 无锡思朗电子科技有限公司 | Image edge fusion processing device based on wireless transmission |
| CN104113705A (en) * | 2013-04-16 | 2014-10-22 | 无锡思朗电子科技有限公司 | Distributed matrix switching system |
| CN103248832A (en) * | 2013-05-23 | 2013-08-14 | 中煤科工集团武汉设计研究院 | Screen splicing display system used for long-distance pipeline coal transporting integrated dispatching |
| CN103581570A (en) * | 2013-07-30 | 2014-02-12 | 中国电子科技集团公司第二十八研究所 | Large-size screen splice system and method based on multi-media communication |
| CN106814986A (en) * | 2015-11-30 | 2017-06-09 | 深圳富泰宏精密工业有限公司 | Electronic installation, image shared system and method with the electronic installation |
| CN105446687B (en) * | 2015-12-07 | 2018-11-02 | 广东威创视讯科技股份有限公司 | A kind of method and apparatus for spelling wall video in window signal partial enlargement |
| CN109089056A (en) * | 2018-08-10 | 2018-12-25 | 南京腾优信息科技有限公司 | A kind of video teaching interactive device |
| CN109754720A (en) * | 2019-03-21 | 2019-05-14 | 宁夏农林科学院农业经济与信息技术研究所（宁夏农业科技图书馆） | A kind of agricultural and forest science information Broadcast Control interaction platform and information Broadcast Control interaction systems |
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