CN109768996A - The big screen display system of cloud based on the building of business module application logic - Google Patents
The big screen display system of cloud based on the building of business module application logic Download PDFInfo
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Abstract
The invention discloses a kind of big screen display systems of cloud based on the building of business module application logic, it is related to large screen display field, the big screen display system of cloud based on the building of business module application logic comprehensively utilizes X86 using multiple business processing module parallel computation (i.e. " cloud " calculates) and operating technology.The advantage of embedded and distributed node respectively, ultrahigh resolution is shown that large screen carries out business module clustering, it innovatively improves system show all kinds of massive informations, handle, analyzing and managerial ability, forms a high performance information processing, analysis, management and information and show Integrated Information Centre with control.The system provides a powerful interactive generalization intelligent centre platform for user, can provide for every profession and trade digitlization, informationization newest most effective based on system simplicity, Operation and Maintenance simplificationization, the optimal technical support for turning to principle of signal transmission node.
Description
Technical field
The present invention relates to large screen display field, in particular to a kind of cloud based on the building of business module application logic
Big screen display system.
Background technique
With the fast development of multimedia technology, large-screen splicing display system is flat as very multiple services centralized displaying
Platform provides display comprehensive function for operation, commander, decision；System by the display units such as muti-piece DLP or LCD, LED splice and
At integrating a large amount of image information display, provide flexible big picture and show, applied in every profession and trade very universal.
At present this field for show content signal processing generally use be based on X86, embedded FPGA or distribution
Formula encoding and decoding are the tiled display controller of main means.Due to traditional X86 planning device fan-out mouth extended capability by
System bus limitation is unable to satisfy the access of big quantity and the demand of output signal；Although embedded scheme ports-Extending ability is big
For enhancing and efficiency execute it is higher, but it is common be chiefly used in single physics acquisition signal port form, but it is a variety of for user
Signal content (video, picture, Streaming Media in many ways.WEB, customize application etc.) access form support it is bad, it is difficult to have
Effect reduces signal source end content operation；And a period of time popular distributed schemes recently, mainly by damaging or nothing
It damages code encoding/decoding mode and completes signal acquisition and transmission, networking flexibility while, also unavoidably reduces the signal quality of user,
Or have strict requirements for transmission network and have to create a set of dedicated network, it is difficult with existing network and reaches steady
Surely the effect of image quality is taken into account.With the continuous development of digital information display technology, various industries are to the nonstandard of large screen display
The increase of the new number requirement of customization of quasi- resolution ratio shows desired increase, above-mentioned several single controls to high-resolution, ultra-large scene
Device system schema processed gradually cannot all meet the new requirement of user.
As shown in Figure 1, all input pictures must all access Video Controller in conventional video Control system architecture
In, all output images are exported by Video Controller.The core component of this kind of processing mode is multi-screen processor (image mosaic
Device), this kind of equipment is mostly pure Design of Hardware Architecture, no operating system.Entire large-size screen monitors show the signal acquisition of image, decoding, spelling
It connects output services to concentrate on completing in image stitcher, the system expandability is poor, and signal is shared between many motors control device equipment
Difficulty is limited by physical circuit, and operation and dispatching flexibility be not high.
And traditional distributed is transmitted by the mode that all models all encode in advance is realized IP, use is relatively clever
It is living, but signal quality is unavoidably reduced, it is stringenter to transmission network requirement, simultaneously because rear end uses distribution substantially
Multiple terminals processing, the synchronism that signal is integrally shown is always the difficulty that is difficult to avoid that, at present still without the side of well solving
Method solves the display stationary problem of the same signal source in multiple outlet terminal load imbalances.Such mode is also difficult to meet
The encoding and decoding of the input of big resolution ratio and special resolution ratio and display stationary problem.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of cloud based on the building of business module application logic is big
Screen display system, the system is using multiple business processing module parallel computation (i.e. " cloud " calculates) and operating technology, comprehensive utilization
X86.Ultrahigh resolution is shown that large screen carries out business module clustering, wound by the advantage of embedded and distributed node respectively
It improves to new property system show all kinds of massive informations, handle, analyzing and managerial ability, at one high performance information of formation
Reason, analysis, management and information show the Integrated Information Centre with control.
To achieve the above object, the present invention provides technical solution below:
The big screen display system of cloud based on the building of business module application logic includes that more displays (are distributed in not
Spliced display wall and independent large-sized display devices with place), more distributed cloud controller (centralization and distributions
Formula node), interchanger, management platform server and system software, more displays constitute combinations and are distributed in differently
The display equipment of point；Interchanger constitutes local area network by cascade, provides the transmission channel of data and control command, constitutes IP network
Framework core, management platform server access network simultaneously to display signal be scheduled control；More distributed cloud controls
Device processed accesses the interchanger of corresponding level, and by video connecting line (video connecting line can be radio frequency line, RGB component line,
VGA line, DVI line, HDMI wire, DP line, SDI line or other kinds of video line) it is connected with corresponding display, cloud control
Device processed is using private exchange bus mother board and is equipped with ARM/X86 processor and FPGA processing circuit.
Preferably, the display can be ultra-narrow side liquid crystal flat-screen CRT monitor, and image shows no curve distortion, it is smooth such as
One, single screen resolution ratio can be widely applied to a variety of public fields up to 1920 × 1080 or higher, screen resolution height, ultra-thin and ultra-light
It closes；Display is also possible to the other display units such as LCD, LED, MPDP, DLP, projector.
Preferably, the distributed cloud controller is professional high performance controller, by the way of grading control into
Row configuration, i.e. master node control are issued to child node controller and are instructed, wherein every distributed cloud as child node
Controller can routinely connect 4 or 8 display units as an individual Node Controller, if user needs, can be extended,
Extend the integral multiple that quantity is 4, it can also be used to individually or have the display equipment of special resolution ratio input or acquire equipment.
Distributed splicing controller have video decoding/decoding function and storage unit, stored for media, can also directly into
Industry business calculates display (video, picture, Streaming Media.WEB, customization application etc.).
Preferably, the system software include system platform and interface, Database Systems, large-size screen monitors control and management software,
Large-size screen monitors show that software, client-side management software, client video send software, audio video transmission control software etc.；User management
Software is mountable to any one splicing controller in grid, constitutes large-size screen monitors management server, passes through certain permission
Setting realizes user to displaying content, display area, any editor of exhibition method and management；By high performance software, realize
The 4 or 8 pieces of displays controlled it carry out image rendering, realize that the large capacity graph image of ultrahigh resolution is quickly shown,
Major function is the division of multiple-aspect territory coordinate and time scheduling management being responsible for the video flowing, and child node controller is according to master
The instruction that Node Controller issues is split the image received, and the image of to one's name range of management is amplified,
Rendering processing.
Preferably, the big screen display system of cloud based on the building of business module application logic is mainly by n estrade section
Base site controller, 4n or 8n block ultra-narrow side liquid crystal display, two master node controls, server, network system and system software
Composition；Child node controller, master node control and high speed network constitute the basic platform that system high-performance is shown, file
Server, streaming media server and high definition video collecting server, which are realized, manages Large Volume Data and the unified of digital Streaming Media
Reason, large screen management server realize the unified management that signal and scheduling are shown to large screen.
System is collectively constituted by gigabit control and data network, and each Node Controller and kilomega network establish connection, kilomega network
Network is collectively constituted by 48 mouthfuls of gigabit switch clusters and six class cables, and main task is transmitting large-capacity video stream and graph image
Data transmission.
Using the tiled display equipment of the system, image process controller is made of X86/ARM+FPGA framework,
Based on High speed rear panel data exchange.Can be by coding/decoding ability, signal acquisition driving capability, at output resolution ratio, combination image
Reason ability different demands, the input performance and output channel of arbitrary disposition server.
By uniform client/multiple and different configurations of management platform management, the splicing of driving different scales arrangement is realized
Wall；Since multiple controllers energy distributed work simultaneously can be used, make the decoding capability and image procossing of whole system simultaneously
Ability is almost unrestricted.
The tiled display equipment of system possesses video decoding, store function can make after accessing Software Videoconferencing System
Video conferencing system possesses meeting store function, and to video conference number of nodes without limitation, makes audio, view in meeting-place
Frequently, document picture etc. is easily shown, and can free interaction, adaptation is strong to function from the desktop type meeting of convenient dexterity
Big video conference manages platform.
Preferably, the cloud control in the big screen display system of cloud based on the building of business module application logic
Device is splicing with the design standard of technical grade using parallel computation (i.e. cloud computing) and X86/ARM+FPGA operating technology
System provides powerful basic-level support.Not only solve input, the number of output and the signal matter of centralized splicing controller at present
Amount limitation, system upgrade is difficult and distributed director management disperses, the skimble-scamble disadvantage of system coordination；More it is integrated with display
Wall splicing, multi-screen image processing technique, signal handoff technique, network technology etc., and merge the distribution of existing physical aspect
Formula processing system reaches the unified control of signal processing from the network technology distribution form of bottom layer realization signal acquisition and display.
And the exploitation port open because of controller, it can be operated by demand customized development system function and by controlling software, with IP network
For framework core, huger splice displaying system is formed.
A powerful interactive generalization can be provided for user for the display system of core using cloud controller
Intelligent centre platform provides newest most effective technical support for every profession and trade digitlization, information-based video conference.Cloud control
Device processed, unified various audiovisual display function demands, and lead large screen splicing system to convenient, intensive, shared big data interaction
Platform direction and develop.Cloud controller makes to splice equipment to be no longer single application, and becomes the powerful of entire display system
House keeper.
It is using the beneficial effect of above technical scheme:
1. based on showing application framework in a distributed manner, effective integration centralization X86, embedded device and general distribution
Advantage, shows signal all-digital acquisition/transmission, and total exchange high-speed transfer (High speed rear panel exchange and High Speed IP transmission) realizes
The visualization of mass data supports the display of high definition, ultra high-definition signal, supports real-time dynamic interaction；
2. concentrating X86 or embedded, Distributed-solution deployment way to compare with tradition, cloud display system application
Deployment way is simple, and system architecture is more succinct, eliminates unnecessary front-end collection/coding, and corresponding switching as far as possible
Equipment and route (such as distributor, conversion head, dedicated transmissions cable, wired amplification extend equipment etc.), using IP network as framework core
The heart takes into account centralized processing and Decentralization/transmission technology advantage.It is mainly reflected in following several respects:
2.1 high-performance: ultra-large scene signal (such as: 4K or bigger resolution ratio/special resolution signal), ultra high-definition figure are supported
As display.Advanced simultaneous techniques ensures that all screen synch are shown；
2.2 high reliability: product high speed IP data exchange network structure between the exchange of intra-node High speed rear panel, node
Build, be sent in local signal node and shown in equipment by height backboard, between node all signals can Authority sharing pass through exchange
Machine is pushed directly in display equipment, and combination is flexible, management operating simplicity reliability；
2.3 high expansions: being transmitted using networking signal, can increase input signal source whenever and wherever possible, any to expand output
Show number of devices.Easily implement, is easy to maintain: product facility standardization level is high, number of devices is few, can Rapid Implementation, be easy to tie up
Shield；
2.4 overall costs are low: not multiple after system master is few, child node controller is attached directly to display screen
Miscellaneous switching equipment and cable, and the computer signal of the original major part of user display signal to be treated (media signal,
Document/business procedure, data sheet etc.) can directly there be business module built in this system processor under platform management scheduling
It directly runs and display equipment is output to by inner high speed switching backplane, due to eliminating most of work station for repeating configuration
And corresponding matched office equipment and communication line, communications cost is low, and the effective funds of whole system are used for the expense of ancillary equipment
It is greatly reduced, overall occupied space is very small, and the simple cost of labor of O&M is low, and system energy consumption is small, saves operating cost.
2.5 reduce regular job intensity, alleviate the requirement of operator:, can under number user environment big absolutely
To simplify numerous signal source operation seat and operator on duty's demand, only retaining most basic administrator/operator can flow
Smooth operation whole system, the behaviour of daily signal dispatching and signal source end can be easily completed by platform management software administrator
Make, execution link is fast, and operating efficiency is high, has abandoned administrator in traditional scheme and has just been responsible for signal management and scheduling, operator
The operation of the signal content of each signal source section is responsible at seat, improves the operating efficiency of system.
3. powerful information processing, analysis and managerial ability: system uses modularization Clustering, utilizes advanced parallel letter
Processing capacity is ceased, provides the operation platform of efficient stable for all kinds of massive informations.System software is one flexible, efficient point
Cloth visualization system software, hardware configuration can be made to execute various operations in the case where visualizing cluster instruction, and (such as high-resolution is spelled
Connect display system), realize that the real-time Transmission of high-definition picture is shown.System software overcomes conventional display system in network rings
The defect shown in border, by the Web communication layer based on multithreading of a lightweight, to the application example on all nodes
It is rendered.And friendly visualization interface is provided and is presented to the user.
4. having multimedia shown in parallel and control ability, system shows ultrahigh resolution signal source on large screen,
And multichannel, multimedia (real-time audio, video etc.), more picture Intelligent and Parallels are carried out simultaneously and is shown.
5. having ultrahigh resolution, system uses world's latest generation distributed parallel display technique, and display unit is by surpassing
High-resolution LCD panel composition, so that image resolution ratio be made to may be up to several hundred million pixels or more.
6. cost performance is high, the display screen of system is formed by LCD module cluster, in addition advanced parallel processing technique is answered
With, so that the hardware device cost of system control substantially reduces, system is not necessarily to the individually equipment such as purchase decoding device, matrix, and
Realize under reasonable cost conditions, superhigh precision, super large panel, multimedia, multi-channel information Concurrent Display.
7. cloud data information real-time display can grab the point-to-point presentation in a variety of manners on the screen of rear end multisystem data
And control, most suitable most intuitive data are provided and are shown.
8. energy-saving and environment friendly, using the physical node quantity of the tiled display control system display system of this system structure
In current mainstream scheme compared to minimum, respective communication route and private cable, total system consumption heating amount is small, to computer room and work
Make place environment temperature control require it is corresponding mitigate, be the environment protection health controller of a new generation, meet country advocate office and
The energy consumption in computer room place controls trend.
9. open: this system interface is open, SDK the and API application interface provided using long system can be convenient
Be integrated into other control system or operation system, convenient secondary development can also be carried out.
Detailed description of the invention
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Fig. 1 is 2 kinds of structure charts of conventional big screen display splicing；
Fig. 2 is the tiled display equipment topological diagram of built-in business module of the invention；
Fig. 3 is structure chart in the tiled display equipment of built-in business module of the invention；
Fig. 4 is the tiled display equipment overall structure figure of built-in business module of the invention.
Specific embodiment
The invention will now be described in detail with reference to the accompanying drawings, and the cloud large-size screen monitors based on the building of business module application logic show system
The preferred embodiment of system.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 show the cloud large-size screen monitors display system the present invention is based on the building of business module application logic
The specific embodiment of system:
As shown in Fig. 2, system splicing principle is as follows, and system passes through friendship so that common 4 row, 8 column large screen splicing is shown as an example
The whole local area network of composition of changing planes one.Master node control and distribution node controller access high-speed local area by exchange interface
Net.The action (picture video media file, multi-format document, WEB application, APP client) at traditional different operating station is no
Corresponding work station is disposed again, and signal is directly completed by main business Node Controller and is generated, for the signal source of particular platform, such as
Video conference terminal, the video input of the forms such as dedicated SDI is still directly accessed acquisition port, for IP class Streaming Media and security protection
IP like monitor video is directly responsible for decoded input, special terminal (such as LINUX, embedded system) by streaming media service module
Display video output is then distributed node and completes signal input coding and control the biography of signal (mouse-keyboard RS232 infrared etc.)
It is defeated.
The process flow of vision signal are as follows:
Stimulus part: the signals such as audio-video signal of special defects such as video conference terminal, SDI/DP, embedded device
Still main splicing controller is directly entered through logistics acquisition port；Media file signal, WEB, APP are applied through management platform part
Corresponding media module is affixed one's name to, is responsible for directly processing by respective modules and inputs into controller output；Streaming Media, security type IP video
Corresponding stream media decoding module is accessed by platform management and distributed to, complete to decode and outputs image to controller；Dispersion
Special input terminal equipment (such as LINUX work station, embedded system) shows that video output is then distributed node and completes signal
The transmission of input coding and control signal (mouse-keyboard RS232 infrared etc.).
Signal hop: from figure 2 it can be seen that the input of signal transmission is due to eliminating traditional most work
Make seat and additional private cable, distributor, signal converting is therefore needed to extend equipment, while having cut down corresponding part
The coding IP device of traditional distributed, only retain special and not replaceable or Safety Redundancy input source (work station,
Operate seat) so that the front end portion structure the most complicated of entire legacy system link is greatly simplified, save a large amount of cloth
Line, the figure maintenance management work of ancillary equipment, it is fewer to meet conversion/transit node in signal transmission link, mass loss/failure
The smaller basic principle of probability.
Segment signal output: processed final high resolution audio and video signal is passed through cable by the output module of local controller
Signal wire gives local main display/wall, and the distributed node controller of distal end is shared by High Speed IP Network by local
The shared signal that controller provides, does not need special signal route, according to the sufficiently stable network of design share channel capacity and
Respective switch group environment.
Main processing equipment part: master node control, distributed node controller, management platform
Master node control
Input card be responsible for handle input and output type it is relatively more, multihead display wall it is bigger or show equipment it is relatively more
Application, access principle be it is local be directly accessed nearby, business datum, media, WEB and application without transmission directly by
Corresponding business module processing feeding, the IP signal of distal end and the sharing signal incoming stream media handling mould of other master controllers
Block simultaneously exports the high-speed switching bus given.Output, which is applied for card, to be completed the segmentation splicing of signal pattern and shows output to local aobvious
Show wall/screen.
Control card is responsible for the received control instruction sent from client and management platform of processing controller, grasps in real time
Make the processing of local signal and shows the scheduling of work.And it can be according to management server or the several scenes of management platform setting
Mode carries out unattended automatic broadcasting according to time and date and manages.
Signal shares the audio/video coding and control signal that shared card can handle the shared signal in 1~4 channel, and is sent into height
The fast network switch, so that other nodes or controller use.It can be according to the system channel capacity flexible configuration of design.
Distributed node (controller)
Has high definition HDMI/DVI input interface, local ring goes out HDMI/DVI interface, and the vocal input of 3.5mm solid connects with output
Mouth, RS232, the peripheral control interfaces such as USB keyboard mouse and gigabit networking interface.Has the road 1-4 H264/265 decoding and 1
Road encoding function.It is suitble to monomer display (LED liquid crystal display, high definition television) to use, shows that signal can in access work station
Ring goes out input signal to work station simultaneously, can be simultaneously the display of work station in the case where not increasing signal distributing equipment
As a controlled node of entire display system, the signal combination of momentarily display system scheduling and message give each operation seat
Position, and the keyboard of local work station can be directly operated by priority assignation permission display system operator or far end system operator
Mouse.
It manages platform (or single node management server)
Management platform is the performance X86-based server, and the storage equipment equipped with large capacity has multichannel or multichannel
Gigabit networking interface, deployment platform management service, undertake multiple main splicing controllers, distributed node controller registration, connect
Enter, configuration and task management work, while undertaking service scripts, audio/video multimedia and Streaming Media, APP, the service resources such as WEB
Input and distribution and main splicing control device between, signal between platform shares and allocation schedule work, and can be with intuitive net
Network opens up complement form and shows connection and working condition between multiple systems.
Single node management server is plate card type, realizes the hardware and service management function for simplifying the main splicing controller of version
Can, it is usually embedded and is mainly used in system small in local area network independent main splicing controller in the host controller and matches
Close the regular job and management work of the distributed node controller of work.
As shown in figure 3, distributed real-time cloud tiled display block diagram illustrating data flow, control stream are in structure chart in this system
In flow direction, client is by connection management Platform Server, in a manner of message-driven, by primary processor and and node processing
Device needs to show that the source type port of content and the display control signals such as image coordinate and display time are sent to high speed network.
Each processor is completed by node administration module (only drawing 1 processor in figure as signal) according to the instruction that client issues
Display control acts and exports the picture composition of formulation.Meanwhile each node control processor is realized by AIL (application interface library)
Control information and signal source between each processor interact, according to user terminal/management platform control instruction, with parallel processing
Mode needs to be split in oneself connection screen displaying part, decode and render processing to general image.Due to every each node
Controller image procossing range is only limited to the N block screen of itself connection and the sharing channel to distal end, and system is entirely through high speed
Network implementations interconnection, it can be achieved that the ultrahigh resolution of image, low delay display under the support of high speed network.
(Fig. 1 and Fig. 2, Fig. 3 compare) is compared with traditional large screen splicing control system this it appears that new
System has the following characteristics that
1. this system image displaying principle system and the difference of the essence of legacy system are to use concurrent computational system.
No longer narrow differentiation centralized and distributed architectures concept, centralized device and distributed apparatus and deposit in system, it is overall
It is effective simultaneously to manage and manage independently mode concentratedly for distributed parallel work.Stricti jurise and Ei but processor device is not led
From it point, flexibly configurable.
2. business function module:
Different from traditional centralization/distribution, system has done built in big feature display splicing industry convectional signals sources
Business module, can directly generate required signal through switching bus give output handle, compared with traditional solution, no matter pass
System centralization or distributed, it is total all without departing from acquisition-cable transmission/coding-input port-exchange for getting off is continued up
Line --- output processing --- entire link of display port-display screen, and the new link of the present invention is that business module-exchange is total
Line --- output processing --- display port-display screen eliminates signal cable/distribution needed for conventional front-end to greatest extent
Device/encoder/comprehensive wiring/extension multiplying arrangement etc. not only increases system cost and difficulty of construction, but also influences display effect (overlength
The acquisition transmission of distance or coding inevitably increase the loss of signal, can be possible to out according to different periphery electromagnetic environments
Now it is difficult to the intermittence failure excluded).
3. system administration and operating cost are low, reduce the occupancy of operator on duty's quantity, a people can manage local institute
Some processors and signal source, it may also be necessary to the system InterWorking Equipment in strange land is managed by priority assignation, or in strange land
Manage local system.The several operation management maintainance personnel's that must be taken into consideration when traditional scheme in professional display system is designed
Quantity has been compressed to minimum level.
4. image input mode is compatible with multiple format, extendibility is strong；
A. image input mode: digital Streaming Media can be directly accessed the network switch, and simulation/uncompressed digital signal is passed through
Acquisition module enters devices exchange bus, and the display image of specific transactions has processing in built-in business module to directly generate through total
Line is to output.The signal total with other equipment is needed to tap into core exchange network through signal sharing module first encoding.
B. the format of input picture is versatile and flexible, theoretically unrestricted, need to only increase corresponding image in the controller
Format converting module, the investment being not necessary on any hardware；
C. the quantity of input picture, it is theoretically unrestricted；
5. the stability of system, high reliablity；After new construction, the work of a large amount of display screens is held by many motors control device
Multi-computer Redundancy may be implemented in load, each controller, and gigabit networking system can also be with the redundancy of multiple devices, it is easy to guarantee system
Stability；
6. system is easier to maintenance and upgrade: in the case where hardware device does not need any update, updating software can make
The function of system is more perfect and powerful；And the update of software can be completed by remote operation, be not required to software engineer personnel to now
?.
As shown in figure 4, the tiled display equipment medium cloud splicing controller in this system is to gather distributed combination image
Processing function, embeds a variety of user service data processing modules and IP stream decoded digital matrix functions and monitor video image is comprehensive
Close the synthetic image processing platform of processing function.Merging cloud computing technology tiled display controller can be defeated with arbitrary disposition
Number and arrangement out, the combination arrangement that different configuration of server can be arranged in user's needs by client-side management make not
The input signal of same type any shift position on this combination, size roaming, the modes such as superposition are shown.
This controller sharpest edges are to retain traditional embedded stability and the distribution of fighting recklessly to combine flexible feature, are increased
The software operation module for having added signal self-generating energy force-fitting different carrys out the final of consolidation system equipment and uses purpose: with most short distance
Restoring to the greatest extent from minimum transit node needs original signal to be shown.Reduction system also drops while connecting complexity
Low cost, failure rate and maintenance difficulties.The software section of its business module can be at any time with newly adapting to new business datum figure
The requirement of picture, and the support hot plug of carrier hardware module, then its calculating can also require to be exchanged without replacement entirety at any time
Equipment.The controller of multiple and different configurations is managed by uniform client, realizes the combination of driving different scales arrangement.Due to
It can be using multiple controllers energy while distributed work.Make whole system simultaneously decoding capability and image-capable almost
It is unrestricted.The combination of multiple images processor driving can regard the big monitor an of entirety as, make different types of input
Signal (including analog video, RGB, DVI, HDMI, DP, sdi signal become IP stream and IP video stream signal by universal coding)
Any shift position on this combination, size roaming, the modes such as superposition show that user can supervise each of combination
Any synthesis of the visual organ as multiple monitored pictures, repeating query is as base map, and to any position on combination is needed, size is roamed
Signal on monitored picture base map Overlapping display.Cloud controller has the compatible each IP like prison for inputting current mainstream producer
Control code stream, have output preview, video recording, flexible picture composition, be switched fast, timing repeating query, unified prediction scheme, virtual TV wall,
More pictures export playback, directly control image holder on video wall simultaneously for time retrieval, secondary output control, alarm, long-range volume
The powers such as decoding apparatus configuration can provide efficient, reliable professional solution for large-scale monitoring system.
For the market demand of tiled display controller, not in the solution of homologous ray combination can be selected LCD, LED,
The display units such as MPDP, DLP, projector, software use multimedia control display system.
This equipment application makes audio, video, the document picture etc. in meeting-place in by powerful data processing equipment
It easily shows, and being capable of free interaction.For the application demand for meeting different clients, can be mentioned using system of the invention
For a variety of flexible solutions, platform is managed to powerful video conference from the desktop type meeting of convenient dexterity, from setting
The angle of meter is set out, and the use demand of all types of clients is sufficiently met, and is had the following characteristics that
1) network self-adapting function: possessing network bandwidth automatic regulation function, guarantees under different meeting-place network environments, meeting
Smoothness carries out.Under 384Kbps low-bandwidth condition, 4CIF resolution ratio can be up to 15~30 frames；Under 768Kbps bandwidth, 4CIF
Resolution ratio can be up to 25~30 frames；
2) it supports USB to read: possessing convenient high-level data sharing capability, support by plug USB hard disk, to send
The method of data double fluid.Support video clipping (AVI, MPEG, WMV etc.) audio clips (WMA, MP3) graphic file (BMP, GIF,
The data sharing of formats such as TIF).
3) it supports ultra high-definition interaction display combination: being perfectly combined ultra high-definition splice displaying system, it is defeated with ultra high-definition content
Out, by the contents such as audio-video, file show with Large video wall on.And by control system, easily realizes window dragging, puts
Greatly, what content switching etc. was various shows form.More accessible multi-point interactive touch apparatus realizes that smaller screen touch control, large-size screen monitors are real
When play, interact synchronous preview function；Can free switching 4: 3,16: 9 display patterns, and support the double aobvious displays in local, strange land.
The full HD video camera of 1080P/60HZ, unlimited enlarged drawing are still clear；Hotspot tracking technology easily captures participant's picture.
4) it supports mobile terminal to participate in meeting: when emergency occurs or holds occasion, meeting and use mainstream
Mobile terminal (such as IPAD, Android) by 3G/4G or WiFi and participating in the video conference of Intranet, and according to
The multiple mobile terminals of field condition can seamless switching participation meeting.
The above are merely the preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art,
Without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.
Claims (6)
1. a kind of big screen display system of cloud based on the building of business module application logic, it is characterised in that: described to be based on industry
The big screen display system of cloud of module application logic of being engaged in building includes that more displays (are distributed in the tiled display of different location
Wall and independent large-sized display devices), more distributed cloud controllers (centralization and distributed node), interchanger,
Management platform server and system software, the display equipment that more displays constitute combination and are distributed in different location；It hands over
It changes planes and local area network is constituted by cascade, the transmission channel of data and control command is provided, the framework core of IP network is constituted, manage
Platform Server access network is simultaneously scheduled control to display signal；More distributed cloud controllers access corresponding level
Interchanger, and (video connecting line can be radio frequency line, RGB component line, VGA line, DVI line, HDMI by video connecting line
Line, DP line, SDI line or other kinds of video line) it is connected with corresponding display, cloud controller is total using private exchange
Line bottom plate is simultaneously equipped with ARM/X86 processor and FPGA processing circuit.
2. the cloud big screen display system according to claim 1 based on the building of business module application logic, feature
Be: the display can be ultra-narrow side liquid crystal flat-screen CRT monitor, and image shows that no curve is distorted, and smooth such as one, single screen point
For resolution up to 1920 × 1080 or higher, screen resolution height, ultra-thin and ultra-light can be widely applied to a variety of public arenas；Display
It is also possible to the other display units such as LCD, LED, MPDP, DLP, projector.
3. the cloud big screen display system according to claim 1 based on the building of business module application logic, feature
Be: the distribution cloud controller is professional high performance controller, is configured by the way of grading control, i.e., main
Node Controller is issued to child node controller and is instructed, wherein every distributed cloud controller as child node is as one
A individual Node Controller can routinely connect 4 or 8 display units, if user needs, can be extended, and extension quantity is 4
Integral multiple, it can also be used to individually or have the display equipment or acquisition equipment of the input of special resolution ratio.Distribution splicing
Controller has video decoding/decoding function and storage unit, is stored for media, can also directly carry out business calculating
Display (video, picture, Streaming Media, WEB, customization application etc.).
4. the cloud big screen display system according to claim 1 based on the building of business module application logic, feature
Be: the system software include system platform and interface, Database Systems, large-size screen monitors control and management software, large-size screen monitors show it is soft
Part, client-side management software, client video send software, audio video transmission control software etc.；User administration software is mountable
In any one splicing controller in grid, large-size screen monitors management server is constituted, by certain priority assignation, realizes and uses
Family is to displaying content, display area, any editor of exhibition method and management；By high performance software, 4 controlled it are realized
Or 8 pieces of displays carry out image rendering, realize that the large capacity graph image of ultrahigh resolution quickly shows that major function is negative
It blames and the multiple-aspect territory coordinate division of the video flowing and time scheduling management, child node controller is sent out according to master node control
Instruction out is split the image received, and amplifies to the image of to one's name range of management, rendering processing.
5. the cloud big screen display system according to claim 1 based on the building of business module application logic, feature
Be: the big screen display system of cloud based on the building of business module application logic is mainly by n estrade Node Controller, 4n
Or 8n block ultra-narrow side liquid crystal display, two master node controls, server, network system and system software composition；Child node
Controller, master node control and high speed network constitute the basic platform that system high-performance is shown, file server, stream matchmaker
Body server and high definition video collecting server realize the unified management to Large Volume Data and digital Streaming Media, large screen pipe
It manages server and realizes the unified management for showing signal and scheduling to large screen, system is collectively constituted by gigabit control and data network,
Each Node Controller and kilomega network establish connection, and gigabit networking is by 48 mouthfuls of gigabit switch clusters and common group of six class cables
At main task is transmitting large-capacity video stream and graphic image data transmission.
6. the cloud big screen display system according to claim 1 based on the building of business module application logic, feature
Be: the cloud controller in the big screen display system of cloud based on the building of business module application logic is using parallel
It calculates (i.e. cloud computing) and X86/ARM+FPGA operating technology is provided by force with the design standard of technical grade for splicing system
Big basic-level support by demand customized development system function and can pass through control software behaviour because of the open exploitation port of controller
Make, using IP network as framework core, forms huger splice displaying system.
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