CN104754305A - Tiled display control system based on cloud computing technology, image display method adopting system and application of system - Google Patents
Tiled display control system based on cloud computing technology, image display method adopting system and application of system Download PDFInfo
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Abstract
The invention provides a tiled display control system based on a cloud computing technology, an image display method adopting the system and an application of the system. The system comprises a plurality of displays, a plurality of distributed cloud registration controllers, a plurality of exchangers and system software, wherein a jointing wall is formed by the plurality of displays; an LAN (Local Area Network) is formed by cascading the plurality of exchangers, and a framework core of an IP (Internet Protocol) network is formed by a transmission channel for providing data and control commands; the plurality of distributed cloud registration controllers are accessed into the exchangers of the corresponding levels, and are connected with the corresponding displays through video connecting wires, and the cloud registration controller adopts a PCI-E (PCI Express) base-plate and is provided with an Inter processor. A plurality of data (IE) windows can be displayed on an assembled display simultaneously by adopting the performance of a flexibly configured server and an output channel of the system, and can be interacted in real time; furthermore, the tiled display control system has the functions of video decoding, server memory and the like after the system is applied to a video conference system; compared with the traditional scheme, the system has the advantages of high performance, high reliability, high development, low cost, information processing, strong analysis and management capacities, high resolution ratio, high performance cost ratio, real-time display, green environmental protection and the like.
Description
Technical field
The invention belongs to large scale display field, relate generally to the technology contents such as large-screen splicing display and control.Especially a kind of tiled display control system based on cloud computing technology, the method for displaying image adopting this system and this systematic difference.
Background technology
Along with the fast development of multimedia technology, large-screen splicing display system becomes very multiple services centralized displaying platform, for operation, commander, decision-making provide display comprehensive function; System is spliced by display units such as polylith DLP or LCD, integrate a large amount of image information display, large picture display is flexibly provided, meet the instructions for use of long-term uninterruptedly stable operation in 7 × 24 hours, possess abundant information, the picture of super large, pure color, the effect of high definition, the flexibly feature such as tissue and stable performance.
What current large-screen splicing display field generally adopted is centralized splicing controller, due to centralized splicing controller input, export quantity and have a definite limitation; And along with the development of digital information Display Technique, industry-by-industry, to the increase of the requirement on flexibility of large scale display, shows to high definition, ultra-large scene the increase required; Meanwhile, networking also makes every profession and trade propose the requirement realizing information sharing between the superior and the subordinate, zones of different, and traditional, centralized large-screen splicing display system can not meet above-mentioned requirements.
Summary of the invention
In order to meet the demand of client's development, present applicant proposes the large screen display system of a kind of cloud (MCS multimedia control system), this system adopts parallel computation (namely " cloud " calculates) and operating technology, ultrahigh resolution is shown large-screen and carry out module cluster, integrative display wall splicing simultaneously, multi-screen image treatment technology, signal switching technology, network technology etc., the system that improves is shown all kinds of magnanimity information revolutionaryly, process, analyze and managerial ability, form a high performance information processing, analyze, the Integrated Information Centre of management and information display and control.
This system is that user provides a powerful interactive generalization intelligent centre platform, can be every profession and trade digitlization, informationization provides the most effective up-to-date technical support.
In order to reach foregoing invention object, technical scheme of the present invention is as follows,
Based on a tiled display control system for cloud computing technology, comprise multiple stage display, the distributed cloud controller of multiple stage, multiple stage switch and systems soft ware, multiple stage display forms combination; Multiple stage switch forms local area network (LAN) by cascade, provides the transmission channel of data and control command, forms the framework core of IP network; Multiple stage distributed cloud controller accesses the switch of corresponding level, and be connected with corresponding display by video connecting line (video connecting line can be radio frequency line, the video line of RGB component lines, VGA line, DVI line, HDMI wire, DP line, SDI line or other kinds), cloud controller employing PCI-E bus mother board is also equipped with Inter processor.
Described display can be ultra-narrow limit liquid crystal flat-screen CRT monitor, and image display is without curve distortion, and smooth as one, single screen resolution reaches 1920 × 1080 or higher, and screen resolution is high, ultra-thin and ultra-light, can be widely used in multiple public arena; Display also can be other display units such as LCD, LED, MPDP, DLP, projecting apparatus.Especially, the described curtain wall that connects adopts the ultra-narrow limit liquid crystal flat-screen CRT monitor using Samsung DID narrow limit technology, has the feature of high brightness, environmental protection, low maintenance cost and minimum 3.5mm piece thereof.
Described distributed cloud controller is professional high performance controller, the mode of grading control is adopted to be configured, namely master node control sends instruction to child node controller, every platform distributed cloud controller wherein as child node can connect 4 or 8 display units as an independent Node Controller routine, as user needs, can expand, expansion quantity is the integral multiple of 4.
Systems soft ware comprises system platform and interface, Database Systems, large-size screen monitors control and management software, large-size screen monitors software for display, client-side management software, client video send software, audio video transmission control software design etc.; User administration software can be installed on any station server in grid, forms large-size screen monitors management server, by certain priority assignation, realizes user to any editor and the management of showing content, display area, exhibition method; Pass through high performance software, 4 or the 8 pieces of displays realized it controls carry out image rendering, the Large Copacity graph image realizing ultrahigh resolution is shown fast, its major function is be responsible for dividing and time scheduling management the multiple-aspect territory coordinate of this video flowing, the instruction that child node controller sends according to master node control to the Image Segmentation Using received, and is amplified the image of to one's name range of management, is played up process.
Preferably, system is primarily of n estrade Node Controller, 4n or 8n block ultra-narrow limit liquid crystal display, two master node control, server, network system and systems soft ware compositions; The basic platform of child node controller, master node control and express network construction system high-performance display, file server, streaming media server and high definition video collecting server realize the unified management to Large Volume Data and digital stream media, and large-screen management server realizes unified management large-screen being shown to signal and scheduling;
System is controlled by gigabit and data network forms jointly, and each Node Controller and kilomega network connect, and gigabit networking is made up of jointly 48 mouthfuls of gigabit switch clusters and six class netting twines, and main task is for transmitting large-capacity video stream and graphic image data transmission.
A kind of mosaic screen method for displaying image of the tiled display control system based on cloud computing technology, the method adopts the tiled display control system based on cloud computing technology of the present invention, its image processing server can adopt the general video card of main flow PC+ polylith in the market to make, can by decoding capability, video driver ability, the different demand of image-capable, the performance of arbitrary disposition server and output channel;
Managed the server of multiple difference configuration by uniform client, realize the combination driving different scales arrangement; Owing to can adopt multiple server can simultaneously distributed work, every station server has the powerful display capabilities of the powerful CPU disposal ability of main flow PC and video card, make whole system decoding capability simultaneously and image-capable restricted hardly;
The combination that multiple image processor drives can regard an overall large monitor as, makes dissimilar input signal any shift position on this combination, and size is roamed, and the modes such as superposition show;
User can using any synthesis of each monitor of combination as multiple monitored picture, repeating query as base map, to needs optional position on combination, signal Overlapping display on monitored picture base map of size roaming.
Tiled display control system based on cloud computing technology of the present invention can be applied to the real-time interactive of large scale display content, and multiple data (IE) window can be made simultaneously in tiled display screen display, and real-time interactive.
Tiled display control system based on cloud computing technology of the present invention can also be applied to the tiled display equipment of video conferencing system, because this display control program has video decode, server stores function, after access software video conferencing system, video conferencing system can be made to have meeting memory function, and it is unrestricted to video conference number of nodes, audio frequency in meeting-place, video, document picture etc. are easily shown, and can free interaction, adapt to from the desktop type meeting of convenient dexterity to powerful video conference management platform
Cloud controller in the present invention adopts parallel computation (i.e. cloud computing) and operating technology, and PCI-E bus mother board is equipped with the state-of-the-art process kernel of Intel, by the design standard of technical grade, for splicing system provides powerful basic-level support.Not only solve the input of current centralized splicing controller, export quantity and signal quality restriction, system upgrade difficulty, and the dispersion of distributed AC servo system management, the skimble-scamble shortcoming of system coordination; More be integrated with display wall splicing, multi-screen image treatment technology, signal switching technology, network technology etc., and merge the distributed processing system(DPS) of existing physical aspect, from the distributed form of network technology of bottom layer realization signals collecting and display, reach signal transacting and unify management and control.And because of the open exploitation port of controller, can be operated by control software design by demand customized development systemic-function, take IP network as framework core, form huger splice displaying system.
Use display system that cloud controller is core to can be user and provide a powerful interactive generalization intelligent centre platform, for every profession and trade digitlization, informationization provide the most effective up-to-date technical support.Cloud controller, unified various audiovisual Presentation Function demand, and lead large screen splicing system to develop to large data interaction platform direction that is convenient, intensive, that share.Cloud controller, makes splicing equipment be no longer single application, and becomes the powerful house keeper of whole display system.
The invention has the beneficial effects as follows:
1. " cloud controller " is calculated as basis in a distributed manner, display all-digital acquisition, and total exchange high-speed transfer achieves the visual of mass data, supports the display of high definition, ultra high-definition signal, supports real-time dynamic interaction;
2. contrast with traditional solution deployment way, cloud display system application deployment mode is simple, is framework core, forms comprehensive technical advantage with IP network.Be mainly reflected in following several respects:
2.1 high-performance: support the display of ultra-large scene signal (as: 4K signal), ultra high-definition image.Advanced simultaneous techniques, ensures that all screen temporal synchronization show;
2.2 high reliability: product is around high speed IP data network struction, and all signals are pushed directly on display device by switch, and operational reliability is high;
2.3 high expansions: adopt networking Signal transmissions, can increase input signal source whenever and wherever possible, expand output display unit quantity arbitrarily.Easy enforcement, easy care: product facility standardization level is high, number of devices is few, can Rapid Implementation, be easy to safeguard;
2.4 integrated costs are low: because system master is few, after child node controller is attached directly to display screen, do not have complicated switching device and cable, communications cost is low, totally takies machine room space very little, the simple cost of labor of O&M is low, and system energy consumption is little, saving operating cost.
3. powerful information processing, analysis and managerial ability: system adopts modularization Clustering, utilizes advanced parallel information disposal ability, for all kinds of magnanimity information provides the operation platform of efficient stable.Systems soft ware is one, and efficient distributed visible systems soft ware, can make hardware configuration under visual cluster instruction, perform various operation (as high-resolution splice displaying system) flexibly, realizes the real-time Transmission display of high-definition picture.Systems soft ware overcomes the defect that conventional display system shows in a network environment, by the Web communication layer based on multithreading of a lightweight, plays up the application example on all nodes.And provide friendly visualization interface to present to user.
4. have multimedia shown in parallel and control ability, ultrahigh resolution signal source shows by system on large-screen, and carries out multichannel, multimedia (real-time audio, video etc.), the displaying of many pictures Intelligent and Parallel simultaneously.
5. have ultrahigh resolution, system adopts world latest generation distributed parallel display technique, and display unit is made up of the LCD of ultrahigh resolution, thus makes image resolution ratio can up to more than several hundred million pixel.
6. cost performance is high, the display screen of system is formed by LCD module cluster, add the application of advanced parallel processing technique, the hardware device cost of Systematical control is reduced greatly, system is without the need to buying separately the equipment such as decoding device, matrix, and achieve under rational cost conditions, the Concurrent Display of superhigh precision, super large panel, multimedia, multi-channel information.
7. cloud data message shows in real time, can capture that rear end multisystem data are point-to-point in a variety of manners on screen to be presented and management and control, provides most suitable data display the most intuitively.
8. environmental protection, the controller caloric value of cloud display control program is little, radiationless, flicker free, do not hinder eye, do not contain hazardous substance (as lead, mercury, cadmium and chromium etc.), be a new generation environment protection health controller.
Tiled display control system based on cloud computing technology of the present invention (adopting distributed splicing controller) contrasts with the quality of traditional tiled display control system (adopting centralized splicing controller) and refers to table 1.
The tiled display control system (adopt distributed splicing controller) of table 1 based on cloud computing technology and the good and bad contrast table of traditional tiled display control system (adopting centralized splicing controller)
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from specification, or understand by implementing the present invention.Object of the present invention and other advantages realize by structure specifically noted in write specification, claims and accompanying drawing and obtain.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is described in more detail.In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, the accompanying drawing (except prior art figure) that the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, in the following detailed description, above-mentioned purpose of the present invention, feature and advantage are by apparent; And under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is conventional big screen display splicing structure chart
Fig. 2 is the tiled display control system topological diagram based on cloud computing technology of the present invention
Fig. 3 is distributed real-time cloud tiled display structure chart in display control program of the present invention
Fig. 4 is the tiled display control system overall structure figure based on cloud computing technology of the present invention
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.It should be noted that before this, the term used in this specification and claims book or word can not limited interpretation be implication in common implication or dictionary, and should based in order to illustrate that principle that its invention inventor can carry out suitably definition to the concept of term is interpreted as meeting implication and the concept of the technology of the present invention thought in the best way.Thereupon, the structure represented in embodiment described in this specification and accompanying drawing is one of preferred embodiment, technological thought of the present invention can not be represented completely, therefore should be understood that the various equivalent and variation that may exist for the present invention and can carry out replacing.
Such as, in the middle of specification and claim, some vocabulary is employed to censure specific components.Those skilled in the art should understand, and hardware manufacturer may call same assembly with different noun.This specification and claims are not used as with the difference of title the mode distinguishing assembly, but are used as the criterion of differentiation with assembly difference functionally." comprising " mentioned in the middle of specification and claim is in the whole text an open language, therefore should be construed to " comprise but be not limited to "." roughly " refer to that in receivable error range, those skilled in the art can solve the technical problem within the scope of certain error, reach described technique effect substantially.In addition, " couple " word comprise directly any at this and be indirectly electrically connected means.Therefore, if describe a first device in literary composition to be coupled to one second device, then represent described first device and directly can be electrically connected at described second device, or be indirectly electrically connected to described second device by other devices or connection means.Specification subsequent descriptions is for implementing better embodiment of the present invention, and right described description is to illustrate for the purpose of rule of the present invention, and is not used to limit scope of the present invention.Protection scope of the present invention is when being as the criterion depending on the claims person of defining.
The specific embodiment of the present invention is explained below in conjunction with Figure of description.
As shown in Figure 1, in conventional video Control system architecture, all input pictures all must access in Video Controller, and all output images are exported by Video Controller.The core component of this kind of processing mode is multi-screen processor (image stitcher), and this kind of equipment mostly is pure Design of Hardware Architecture, without operating system.Decoding, the work of playing up of whole large-size screen monitors display image all concentrate in image stitcher and complete, and the system expandability is poor, and reliability is not high.The work characteristics of system is:
1) input of image adopts the mode of video frequency collection card;
2) output of image also adopts the mode of video processing board-card;
3) in video processor, all input pictures and output image data exchange only has a transmission channel, therefore to be subject to larger restriction, picture delay time long for bandwidth, although some producer has had some progressive in the transmission and interchange channel of image, but still be the technological progress of local, fundamentally do not ensure the extensibility of system;
4) all image input and output are all bundled in a video processor, and this is and core difference that is distributed, parallel processing system (PPS).
Comparatively speaking, the structure of legacy system has following some shortcomings:
1) systemic-function combination, display, subregion, image exchange ability are poor, input and output image array exchange capacity between same Video Controller is relatively good, shield number ratio is more be configured with multiple stage Video Controller time, between the input and output image of two different video controllers, matrix switch function ratio is more weak; General utility functions subregion take Video Controller as core, does not substantially support the combination in any of input and output image, arbitrarily subregion between different controller;
2) stability of system and reliability not high.The Video Controller of current main flow producer is still based on industrial computer, therefore be an acid test to the stability of system and reliability, especially for extensive display system, a Video Controller (such as exporting 32 tunnels) is broken down and 32 pieces of screens just may be caused normally not show, maintaining bothers, and needs all image input cards in this Video Controller and image output card to take out; On the other hand, system can not realize online real-time redundancy;
3) due to traditional Video Controller image amplification, reduce, the conversion of picture format, the mode of image procossing is inputted by image substantially, output card completes, and therefore its software is solidificated in image input, output card, can not realize the upgrading of system through the renewal of pure software.
As shown in Figure 2, be shown as example with common 4 row 8 row large screen splicings, its system splicing principle is as follows, and system forms an overall local area network (LAN) by switch.Master node control and multiple stage child node controller are by exchange interface access to LAN.The image acquisition workstation of different-format is also by exchange interface access to LAN.Digital video stream signal or video server directly enter network by exchange interface, and analog video stream signal enters local area network (LAN) by image processing workstations.
The handling process of vision signal is: directly enter the digital video frequency flow of network or be sent to each child node controller through the analog video stream of image workstation input in the mode that network is mass-sended.Master node control is responsible for dividing and time scheduling management the multiple-aspect territory coordinate of this video flowing.The instruction that child node sends according to master node control to the Image Segmentation Using received, and is amplified the image of to one's name range of management, is played up process.
Main building block function is as follows: master node control: by gigabit or 10,000,000,000 network interface access switch, realizes the management to multiple child node controller in control flow check (Control Stream) mode.Major function is divide and time scheduling management the multiple-aspect territory coordinate of video flowing.
Child node controller: each child node controller has 4 road DVI to export.The connection with Mosaic screen is realized, meanwhile, by gigabit or 10,000,000,000 network interface access switch by 4 DVI cables.Multiple child node controller and master node control cooperatively form local area network (LAN).The major function of child node controller is the control command according to master node control, plays up and relevant treatment, and be correctly presented on connected 4 pieces of screens the displaying contents of 4 pieces of screens that it connects.
File server: by gigabit or 10,000,000,000 network interface access switch, realizes with the Large Volume Data of child node controller mutual, and is connected into internal control network further.Primary responsibility video, audio frequency word, image etc. show that the data of content store.
Image processing workstations: by gigabit or 10,000,000,000 network interface access switch, realizes with the Large Volume Data of child node controller mutual, and is connected into internal control network further.Primary responsibility is to the process of analog audio-video audio data.After analog audio-video audio data is converted into digital video signal by image workstation, enter network in video flowing mode, after carrying out relevant treatment further by master node control and child node controller, be presented on large-screen.
Digital video frequency flow: digital video signal, as the digital video signal of the equipment such as IP Camera, directly can pass through switch access network, realize with the Large Volume Data of child node controller mutual in data flow (Data Stream) mode, by master node control in the mode of control flow check (Control Stream), be responsible for distributing and display management data, realize large scale display by child node controller.
As shown in Figure 3, distributed real-time cloud tiled display block diagram illustrating data flow, the flow direction of control flow check in structure chart in display control program of the present invention, master node control (not shown) passes through space manager, in the mode of message-driven, the display and control instructions such as the image coordinate of displaying contents and displaying time each child node are needed to be sent to express network.The non-decoded picture of command reception entirety that each child node (only drawing 4 display nodes in figure as signal) sends according to master node control.Simultaneously, it is mutual that child node controller realizes with master node control by AIL (application interface library), according to the control command of master node control, need to split, decode and play up process (with 4 pieces of screens for unit parallel rendering simultaneously) at oneself connection screen displaying part to general image with parallel processing manner.Because every estrade Node Controller image procossing scope is only limited to the 4 pieces of screens self connected, entire system is under the control of master node control, realized by express network interconnected with message mechanism, under the support of express network, the ultrahigh resolution of image can be realized, show without time delay.
Carry out contrasting (Fig. 1 and Fig. 2, Fig. 3 contrast) with traditional large screen splicing control system can obviously find out:
1. system diagram of the present invention is distinguished as the essence of displaying principle system and legacy system and is to have employed concurrent computational system.Entirety is spelled wall with 4 pieces of screens for unit divides by system, and every 4 pieces of screens are controlled respectively by a sub-Node Controller, and jointly form local area network (LAN) by high speed internet and master node control.Under the unified allocation of resources, tissue of master node control, outside analog video signal or the digital signal of computer, after quantification and digital processing, be sent to express network, finally send to child node controller, by child node controller by image parallel rendering in video memory, be then shown on high definition LCD mosaic display screen.Due to each child node controller be only responsible for 4 blocks of screen pictures decoding, play up work (legacy system adopt concentrate decoding, play up working method), therefore, the image display of ultrahigh resolution can be realized, and the screen infinite expanding (often increase by 4 pieces of screens, add 1 estrade Node Controller) in theory under transmission bandwidth allows.At present, successfully achieve the experiment test work of 330 child nodes, the ultra high-definition resolution of 1320 display units, fast display systems in California, USA university, this systemic-function is powerful, favorable expandability, reliability are high.
2. the system configuration of cloud controller:
The breakthrough of all technology of system is the development due to high-speed network technology, for mass data transmission, exchange provide high-speed channel, in distributed, parallel computation control system that this technically grows up, for super display systems provides technical powerful support.System is had: powerful signal handling capacity; Splice ability flexibly; Stability, reliability are high; Extensibility is good; Easy care and the high ratio of performance to price.Be in particular in:
1) parallel processing manner is that the information processing capability that system is powerful has established solid foundation; Adopt distributed, concurrent control system, the signal transacting of whole system has been participated in respectively by each network child node.The signal handling capacity of system is the superposition of all display child node disposal abilities, and while system scale constantly expands, signal handling capacity is corresponding significantly to be increased.The structural design of this advanced person breaches the restriction of conversion speed by system scale size;
2) the compatible multiple format of image input mode, extendibility is strong;
A. the input mode of image: numeral can directly in access network switch, and analog image enters in switch through video work station;
B. the form of input picture is versatile and flexible, unrestricted in theory, only need increase corresponding image format conversion software in Node Controller, must investment on any hardware;
C. the quantity of input picture, unrestricted in theory;
3) image output screen size is only by network wide constraints, more easily realizes the clear displaying of superelevation;
A. the output way of image and the quantity of display screen unrestricted in theory, constantly increase the quantity that Node Controller can increase display screen;
B. the output display of image there is no time of delay;
C. the various display effects of image are very easy to realize, and such as, image across the screen, can subregion arbitrarily, various functions such as easily realizing any superposition of input picture, amplify, reduce, move;
D. because input picture and output image adopt the matrix switch of full digital, all input pictures on whole display screen, any position can show arbitrarily;
4) stability of system, reliability are high; After adopting distributed frame, the work of a large amount of display screen is born by multiple stage Node Controller, and a Node Controller fault only affects 4 display screens, and Node Controller can realize multi-computer Redundancy, gigabit networking system also can the redundancy of multiple devices, is easy to the stability of guarantee system;
5) system more easy care and upgrading: at hardware device under more news, update software can make the function of system more perfect and powerful; And the renewal of software completes by remote operation, do not need software engineer personnel to on-the-spot.
Herein, it should be noted that, every estrade Node Controller is set to control 4 display screens in the embodiment above, also the integral multiple platform display screen that every estrade Node Controller controls 8 display screens or 4 can be set to after simply arranging according to system parameters in actual use, correspondingly, every estrade Node Controller is connected with display screen by the integral multiple root DVI line of 8 or 4, repeats no more herein.
As shown in Figure 4, be the distributed combination image processing function of set at the tiled display control system medium cloud splicing controller based on cloud computing technology of the present invention, IP flows decoded digital matrix functions and monitor video image synthesis processing capacity synthetic image processing platform.Cloud computing technology tiled display controller can export number and arrangement by arbitrary disposition, the combination arrangement that the server of different configuration can be arranged in user and be needed by client-side management makes dissimilar input signal any shift position on this combination, size is roamed, and the modes such as superposition show.
Cloud display controller sharpest edges are DIY, its image processing server can adopt the general video card of main flow PC+ polylith in the market to make, so greatly save the cost of image processing platform server, can by decoding capability, video driver ability, the different demand of image-capable, the performance of arbitrary disposition server and output channel, managed the server of multiple difference configuration by uniform client, realize the combination driving different scales arrangement.Owing to can adopt multiple server can simultaneously distributed work, every station server has the powerful display capabilities of the powerful CPU disposal ability of main flow PC and video card, make whole system decoding capability simultaneously and image-capable restricted hardly.The combination that multiple image processor drives can regard an overall large monitor as, dissimilar input signal is made (to comprise analog video, RGB, DVI, HDMI, DP, sdi signal becomes IP stream and IP video stream signal through universal coding) any shift position on this combination, size is roamed, the modes such as superposition show, and user can using any synthesis of each monitor of combination as multiple monitored picture, and repeating query is as base map, to needs optional position on combination, signal Overlapping display on monitored picture base map of size roaming.All kinds of IP that cloud controller has the current main flow producer of compatible input monitor code stream, there is many picture output playback while of exporting preview, video recording, flexibly picture composition, quick switching, timing repeating query, unified prediction scheme, virtual TV wall, time retrieval, directly control video wall epigraph The Cloud Terrace, secondary exports the powers such as control, warning, long-range encoding device configuration, can be large-scale supervisory control system and provides efficient, reliable professional solution.
For the market demand of cloud computing technology tiled display controller, in the solution of different system, combination can select the display units such as LCD, LED, MPDP, DLP, projecting apparatus, and software adopts multimedia control display system.
System is primarily of n estrade Node Controller, 4n or 8n block ultra-narrow limit liquid crystal display, two master node control, server, network system and systems soft ware compositions.The basic platform of child node controller, master node control and express network construction system high-performance display, file server, streaming media server and high definition video collecting server realize the unified management to Large Volume Data and digital stream media, and large-screen management server realizes unified management large-screen being shown to signal and scheduling.
System is controlled by gigabit and data network forms jointly.Each Node Controller and kilomega network connect.Gigabit networking is made up of jointly 48 mouthfuls of gigabit switch clusters and six class netting twines, and main task is for transmitting large-capacity video stream and graphic image data transmission.
The curtain wall that connects in system adopts the ultra-narrow limit liquid crystal flat-screen CRT monitor using Samsung DID narrow limit technology, DID is the abbreviation of Digital Information Display, be widely used in all trades and professions (water power production scheduling, military commanding, city management, mining safety, environmental monitoring, the command systems such as the meteorological maritime affairs of fire-fighting) safety monitoring, (state enterprise's video conference, financial instrument, subway market, airport hotel's communication information etc.) in the liquid crystal display in the field such as the business lease of Information issued (Party media advertisement etc. is sung in theater stadiums fair rally) display systems and display device.This system has the piece feature of high brightness, environmental protection, low maintenance cost and minimum 3.5mm thereof.
In addition, the present invention also can be applicable to the real-time interactive of large scale display content.Adopt system of the present invention that multiple data (IE) window can be made simultaneously in tiled display screen display, and real-time interactive.This application shows data synchronization updating for needing and calls at any time and control the monitoring analysis display system of each data-signal.During use, the back-end data window of N number of continuous change can be presented on spliced display wall by system simultaneously, and can reach data syn-chronization with operating at any time and transfer.By access cloud controller, and access a control end, control software design be installed and just can realize, and can amplify each data window, reduce, the tiled display such as dragging controls display.This application, relative to configuring a PC for each data-signal for the traditional splicing controller accessed, saves manpower and hardware resource, and ensures that policer operation is ageing.
Further, the present invention also can be applied to the tiled display equipment as access video conferencing system.This equipment has video decode function, accessible Software Videoconferencing System, and has meeting memory function.And it is unrestricted to video conference number of nodes.Apply the present invention to video conference, make the ends of the earth that are separated by, as very close, video conference flexibly, really shortens the distance of both sides, by powerful data processing equipment, audio frequency in meeting-place, video, document picture etc. are easily shown, and can free interaction.For the application demand of satisfied different client, use system of the present invention can provide multiple solution flexibly, from the desktop type meeting of convenient dexterity to powerful video conference management platform, from the angle of design, fully meet the user demand of all types of client, and there is following characteristics:
1) network self-adapting function: have network bandwidth automatic regulation function, under ensureing different meeting-place network environment, meeting smoothness is carried out.Under 384Kbps low-bandwidth condition, 4CIF resolution can reach 15 ~ 30 frames; Under 768Kbps bandwidth, 4CIF resolution can reach 25 ~ 30 frames;
2) support that USB reads: have high-level data sharing capability easily, support, by plug USB hard disk, to send the method for data double fluid.Support the data sharing of the forms such as video clipping (AVI, MPEG, WMV etc.) audio clips (WMA, MP3) graphic file (BMP, GIF, TIF).
3) built-in MCU equipment: optional built-in 4-9 user MCU, the medium-sized and small enterprises within being specially at 9 and enterprise's meeting room design.Without the need to buying MCU device separately, design is succinct, powerful, farthest for enterprise economizes on the use of funds input.
4) built-in recorded broadcast equipment: built-in online recorded broadcast function, internal hard disk, and can circumscribed USB storage equipment, support meeting recording at any time and streaming media on demand.
5) possess best standard and compatibility: support the H.264 video algorithm that industry is leading, realize lively vivid video tastes; Multiple network standard support: H.320, H.323, SIP; H.264 4Mbps is supported in calling; H.239 with HD Dual Stream? realize receiving and dispatching video and data flow simultaneously; Superencipherment meeting is realized by H.235 encryption standard.
6) ultra high-definition interaction display combination is supported: perfect fusion ultra high-definition splice displaying system, exports with ultra high-definition content, by the display of the content such as audio frequency and video, file with on Large video wall.And by control system, easily realize window and drag, amplify, what content switching etc. were various represents form.More accessible multi-point interactive touch apparatus, realize smaller screen touch control, large-size screen monitors are play in real time, interactive synchronous preview function; Freely can switch 4: 3,16: 9 display modes, and support the two aobvious display in local, strange land.The full HD video camera of 1080P/60HZ, unlimited enlarged image is still clear; Hotspot tracking technology, easily catches participant's picture.
7) professional audio frequency apparatus access: adopt ClearOne equipment, ClearOne is the producer that first hand release echo cancellation is applied on digital audio processor, be a unique producer that AV audio frequency and video total solution can be provided, and have perfect audio frequency and video turn-key solution.Audio product is researched and developed also for industry provides the Audiotechnica of first water from nineteen eighty-three.To account for the market share of global professional audio meeting product 50 percent.ClearOne audio frequency apparatus, had both solved the various audio issue of traditional meeting room, had added again the element of digital audio processing, and meeting room AV system is improve a class.
8) mobile terminal conference participation is supported: when generation emergency or when holding occasion, meet use the mobile terminal (as IPAD, Android etc.) of main flow by 3G/4G or WiFi and participate in Intranet video conference in the middle of, and can seamless switching conference participation according to the multiple mobile terminal of field condition.
It should be noted that, although above-mentioned explanation illustrate and describes some preferred embodiments of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and and can in invention contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection range of claims of the present invention.
Claims (10)
1. based on a tiled display control system for cloud computing technology, comprise multiple stage display, the distributed cloud controller of multiple stage, multiple stage switch and systems soft ware, it is characterized in that: multiple stage display forms combination; Multiple stage switch forms local area network (LAN) by cascade, provides the transmission channel of data and control command, forms the framework core of IP network; Multiple stage distributed cloud controller accesses the switch of corresponding level, and is connected with corresponding display by video connecting line, and cloud controller adopts PCI-E bus mother board and is equipped with Inter processor.
2. the tiled display control system based on cloud computing technology according to claim 1, it is characterized in that: described display can be ultra-narrow limit liquid crystal flat-screen CRT monitor, image display is without curve distortion, smooth as one, single screen resolution reaches 1920 × 1080 or higher, screen resolution is high, ultra-thin and ultra-light, can be widely used in multiple public arena; Display also can be other display units such as LCD, LED, MPDP, DLP, projecting apparatus.
3. the tiled display control system based on cloud computing technology according to claim 2, it is characterized in that: the described curtain wall that connects adopts the ultra-narrow limit liquid crystal flat-screen CRT monitor using Samsung DID narrow limit technology that there is the feature of high brightness, environmental protection, low maintenance cost and minimum 3.5mm piece.
4. the tiled display control system based on cloud computing technology according to claim 1 or 2 or 3, it is characterized in that: described distributed cloud controller is professional high performance controller, the mode of grading control is adopted to be configured, namely master node control sends instruction to child node controller, every platform distributed cloud controller wherein as child node can connect 4 or 8 display units as an independent Node Controller routine, as user needs, can expand, expansion quantity is the integral multiple of 4.
5. the tiled display control system based on cloud computing technology according to claim 4, is characterized in that: the video connecting line that distributed cloud controller is connected with display can be the video line of radio frequency line, RGB component lines, VGA line, DVI line, HDMI wire, DP line, SDI line or other kinds.
6. the tiled display control system based on cloud computing technology according to claim 5, is characterized in that: systems soft ware comprises system platform and interface, Database Systems, large-size screen monitors control and management software, large-size screen monitors software for display, client-side management software, client video send software, audio video transmission control software design etc.; User administration software can be installed on any station server in grid, forms large-size screen monitors management server, by certain priority assignation, realizes user to any editor and the management of showing content, display area, exhibition method; Pass through high performance software, 4 or the 8 pieces of displays realized it controls carry out image rendering, the Large Copacity graph image realizing ultrahigh resolution is shown fast, its major function is be responsible for dividing and time scheduling management the multiple-aspect territory coordinate of this video flowing, the instruction that child node controller sends according to master node control to the Image Segmentation Using received, and is amplified the image of to one's name range of management, is played up process.
7. the tiled display control system based on cloud computing technology according to claim 6, is characterized in that: system is primarily of n estrade Node Controller, 4n or 8n block ultra-narrow limit liquid crystal display, two master node control, server, network system and systems soft ware compositions; The basic platform of child node controller, master node control and express network construction system high-performance display, file server, streaming media server and high definition video collecting server realize the unified management to Large Volume Data and digital stream media, and large-screen management server realizes unified management large-screen being shown to signal and scheduling;
System is by doing million controls and data network forms jointly, and each Node Controller and kilomega network connect, and gigabit networking is made up of jointly 48 mouthfuls of gigabit switch clusters and six class netting twines, and main task is for transmitting large-capacity video stream and graphic image data transmission.
8., based on a mosaic screen method for displaying image for the tiled display control system of cloud computing technology, it is characterized in that:
The method adopts the tiled display control system based on cloud computing technology as described in claim 1-7, its image processing server can adopt the general video card of main flow PC+ polylith in the market to make, can by decoding capability, video driver ability, the different demand of image-capable, the performance of arbitrary disposition server and output channel;
Managed the server of multiple difference configuration by uniform client, realize the combination driving different scales arrangement; Owing to can adopt multiple server can simultaneously distributed work, every station server has the powerful display capabilities of the powerful CPU disposal ability of main flow PC and video card, make whole system decoding capability simultaneously and image-capable restricted hardly;
The combination that multiple image processor drives can regard an overall large monitor as, makes dissimilar input signal any shift position on this combination, and size is roamed, and the modes such as superposition show;
User can using any synthesis of each monitor of combination as multiple monitored picture, repeating query as base map, to needs optional position on combination, signal Overlapping display on monitored picture base map of size roaming.
9. the application based on the tiled display control system of cloud computing technology, it is characterized in that: by the tiled display control system based on cloud computing technology in the real-time interactive of large scale display content, multiple data (IE) window can be made simultaneously in tiled display screen display, and real-time interactive.
10. the application based on the tiled display control system of cloud computing technology, it is characterized in that: by the tiled display control system based on cloud computing technology in the tiled display equipment of video conferencing system, because this display control program has video decode, server stores function, after access software video conferencing system, video conferencing system can be made to have meeting memory function, and it is unrestricted to video conference number of nodes, make the audio frequency in meeting-place, video, document pictures etc. are easily shown, and can free interaction, adapt to from the desktop type meeting of convenient dexterity to powerful video conference management platform.
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