CN102157141B - LED large screen display control system and method - Google Patents
LED large screen display control system and method Download PDFInfo
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- CN102157141B CN102157141B CN2010102483677A CN201010248367A CN102157141B CN 102157141 B CN102157141 B CN 102157141B CN 2010102483677 A CN2010102483677 A CN 2010102483677A CN 201010248367 A CN201010248367 A CN 201010248367A CN 102157141 B CN102157141 B CN 102157141B
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Abstract
The invention relates to a light-emitting diode (LED) large screen display control system and an LED large screen display control method. The method comprises the following steps of: in data source equipment, labeling data flow and transmitting the labeled data flow to remote display equipment; and in the remote display equipment, receiving the data flow with the label, converting the data flow with the label into metadata with the label, broadcasting to M LED display units, acquiring sub-picture data corresponding to the position of the received metadata from the received metadata by the M LED display units on the basis of the position information of the metadata and the label information in the metadata, and displaying, wherein the sub-picture data is a part of the metadata. By using the system and the method, data buffer memory is not required, so that delay is not generated, and real-time high speed transmission and stable synchronous display can be realized. In addition, fault positions can be intelligently fed back, so that the maintenance cost can be reduced.
Description
Technical field
The present invention relates to the LED display system, more particularly, relate to a kind of LED large screen display control system and method.
Background technology
Display control program in the market all is based on basically and concentrates buffering, and concentrated scan control is finished scan control, and bigger scan control territory is arranged, and can support multiple screen construction and system requirements.Can support the larger area control zone, reducing cost, but the defective that exists display effect to reduce.
Tradition LED display controller function structure as depicted in figs. 1 and 2.Video flowing at first is delivered to local frame and deposits, and sees through independent mapping then and cuts apart, and each is cut apart sprite and independently sends on the subsystem buffer memory of display screen through physical link (as netting twine) transmission.Be double window mouth mapped system data flowchart as shown in Figure 1.Two independently video memory mapping buffering and transmission systems have been comprised.That is to say and after receiving data, full picture is cut apart, be distributed to then in each display module and go that the core of whole design is launched around the mapping of data and the thinking of moving.
There is following defective in the control system of this structure:
Owing to need carry out buffer memory to data, image shows to exist and postpones, and shows that refreshing frequency is low;
The security that connects is low, in case fracture appears in the somewhere, will cause the entire display screen curtain to work;
The connected mode underaction can not be expanded display screen.
Summary of the invention
The technical problem to be solved in the present invention is that the image that exists at prior art shows that existence postpones, shows the low defective of refreshing frequency, provides a kind of LED large screen display control method that need not buffer memory.
Another technical matters that the present invention will solve is that the image that exists at prior art shows that existence postpones, shows the low defective of refreshing frequency, provides a kind of LED large screen display control system of not having buffer.
The technical solution adopted for the present invention to solve the technical problems is: a kind of LED large screen display control method is provided, comprises the steps:
In data source end equipment:
Data are flow to rower to be annotated;
The data stream that has marked is sent to distal displayed equipment; And
In distal displayed equipment:
Reception has the data stream of mark;
The described data stream that has mark is converted to the metadata that has mark and is broadcast to M led display unit;
In M led display unit each is obtained the sub-image data of corresponding its position and is shown that described sub-image data is the part of described metadata based on the markup information in its positional information and the described metadata from the metadata that receives.
In LED large screen display control method of the present invention, the positional information of each in the described M led display unit is to be determined by the locating module in the display control module in each of M led display unit when the distal displayed device power-up powers on.
In LED large screen display control method of the present invention, also comprise:
The described led display unit pair sub-image data corresponding with its shown sprite marks, and sends it back data source end equipment by main control module;
Data source end equipment receives described sub-image data and analyzes markup information, with duty and the warning when breaking down of monitoring described led display unit.
In LED large screen display control method of the present invention, also comprise:
Gather the temperature information of IC chip in the led display unit;
Described temperature information is sent to data source end equipment, with the duty of monitoring described led display unit and when temperature is higher than predetermined threshold, report to the police.
In LED large screen display control method of the present invention, comprising: the interface channel of described led display unit monitoring and adjacent LED display unit, and when described interface channel breaks down, send warning message.
The present invention solves another technical scheme that its technical matters adopts: construct a kind of LED large screen display control system, comprise data source end equipment and communicate with continuous distal displayed equipment;
Described data source end equipment comprises the data stream labeling module, is used for the data stream that will be sent to distal displayed equipment is sealed up the mark agreement;
Described distal displayed equipment comprises main control module and M led display unit, the data stream that has mark from described data source end equipment that described main control module will receive is converted to the metadata that has mark and is broadcast to a described M led display unit, wherein M 〉=2;
Wherein, a described M led display unit is latticed arrangement and each led display unit and communicates by letter with adjacent led display unit and link to each other; Each described led display unit comprises a LED display module and a coupled display control module, and wherein M LED display module formed described LED giant-screen;
Wherein said display control module comprises:
Transceiver module is used for communicating with main control module and adjacent LED display unit;
Locating module is used for determining that led display unit is in the position of described latticed arrangement;
The picture extraction module is used for obtaining the sub-image data of corresponding its position and showing that described sub-image data is the part of described metadata based on the markup information described positional information and the described metadata from the metadata that receives.
In LED large screen display control system of the present invention, described display control module also comprises:
Show information acquisition module, be used for the sub-image data corresponding with the shown sprite of described LED display module marked, and send it back data source end equipment by described transceiver module and main control module, with the duty of monitoring led display unit.
In LED large screen display control system of the present invention, described display control module comprises IC chip and peripheral circuit, also comprise the temperature information acquisition module, be used for gathering the temperature information of described IC chip, and described temperature information is sent to described main control module, send to data source end equipment by described main control module, with the duty of monitoring led display unit.
In LED large screen display control system of the present invention, described display control module also comprises the interface channel monitoring means, the connectedness that is used for the interface channel of monitoring and adjacent LED display unit, and when described interface channel breaks down, send warning message.
In LED large screen display control system of the present invention, being shaped as of the described LED giant-screen that described M LED display module is combined into is square, rectangle, triangle, trapezoidal, circular or oval.
Implement the present invention, have following beneficial effect: because LED large screen display control system of the present invention and method do not need the data buffer memory, therefore nothing postpones, and can realize real real time high-speed transmission and stable demonstration synchronously.
In addition, LED large screen display control system of the present invention can intelligence be fed back abort situation, thereby can reduce maintenance cost.
Have again, led display unit in the LED large screen display control system of the present invention can be to monitoring with the interface channel of adjacent LED display unit, the fault location passage, thereby connect safe, in case certain interface channel breaks down, can select the non-fault passage to receive and send messages; And determine its residing position in giant-screen can power on the time automatically, and make connected mode flexible, can expand display screen.
Because the duty of the led display unit of feedback LED giant-screen can realize real-time monitoring to distal displayed equipment at data source end equipment in real time,
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 tradition LED display controller function structural representation;
The synoptic diagram of Fig. 2 tradition LED display control system;
Fig. 3 is the synoptic diagram of LED large screen display control system of the present invention;
Fig. 4 is the synoptic diagram of the distal displayed equipment in the LED large screen display control system of the present invention;
Fig. 5 is according to one embodiment of the invention, and the arrangement of led display unit reaches annexation synoptic diagram each other in the distal displayed equipment;
Fig. 6 is the structural representation of the led display unit in the distal displayed equipment shown in Figure 4;
Fig. 7 is the synoptic diagram of LED large screen display control system according to an embodiment of the invention;
Fig. 8 is the process flow diagram of LED large screen display control method of the present invention.
Embodiment
The present invention conceives a kind of LED large screen display control system and method, abandon the simply dealt method of immediate data of the data buffer memory of conventional art, by increase the mark protocol layer for entire stream, add detailed supplementary, original low level hardware immediate data transmission operation pattern is risen to the protocol processes model.Total system no longer is simple data copy like this, but around marking the application and development that protocol architecture launches.Be matched with the harmless transmission of high-speed video, realized real-time high band wide data transmission, transmission bandwidth reaches 1Gbps, and the real-time bandwidth of screen backboard grid switching route system reaches 8Gps.System of the present invention has stable performance, low postpones, can be fast effective characteristic such as reconstruct, for transmission, distribution, the delivery of remote base band video and data stream provides technical support.
Fig. 3 is the synoptic diagram of LED large screen display control system of the present invention.As shown in Figure 3, LED large screen display control system 30 of the present invention comprises data source end equipment 10 and distal displayed equipment 20.Wherein, data source end equipment 10 comprises network Broadcast Control module 12, data stream labeling module 14, remote equipment monitor module 18 and communication interface modules 16.
The present invention designs and adopts the no data in buffer injecting method of failing to be sold at auction, and system is risen to protocol layer from traditional hardware simplicity processing.At the data source end, under the control of network Broadcast Control module 12, video, audio stream data and control data from data source end equipment 10 internal storages or external memory storage are input to data stream labeling module 14, data stream labeling module 14 is sealed up a layer protocol in data stream, mark detailed supplementary, convert the network protocol layer data stream then to, send to distal displayed equipment 20 by communication interface modules 16 via the gigabit transmission system again.Remote equipment monitor module 18 receives the real-time back information from distal displayed equipment, so that the state of display device is for no reason monitored in real time.
The 14 performed mark operations of data stream labeling module comprise: on the simplest direct pure base band data, increase an agreement integument, according to certain protocol, with the data segmentation.Be convenient to the distal displayed device processes like this.Markup information provides the detailed description of detailed row, field.Whole like this base band data system is just wrapped up by simple markup information.
In technical scheme of the present invention, data source end equipment can be that network Broadcast Control module, data stream labeling module, the computing machine of equipment monitor module and communication interface modules for no reason are installed.
Fig. 4 is the synoptic diagram of the distal displayed equipment in the LED large screen display control system of the present invention.As shown in Figure 4, distal displayed equipment 20 comprise main control module 21 and M led display unit 22-1,22-2,22-3 ... 22-m (being referred to as 22), wherein each led display unit 22 all communicates to connect by bus and main control module 21.In each embodiment of the present invention, the quantity M of led display unit 22 〉=2.For example, in the embodiment shown in fig. 5, M is 20.
Fig. 5 is according to one embodiment of the invention, and the arrangement of led display unit reaches annexation synoptic diagram each other in the distal displayed equipment.As shown in Figure 5,20 led display unit 22-1 to 22-20 are arranged in the rectangular array of 4 row, 5 row (4 * 5), and wherein each led display unit all communicates to connect with adjacent led display unit, forms the grid type distributed architecture.In the present embodiment, two led display units that the led display unit on four drift angles (upper left corner, the lower left corner, the upper right corner, the lower right corner) of rectangular array is adjacent communicate to connect, and two interface channels are namely arranged; Three led display units that led display unit on the sideline is adjacent communicate to connect, and three interface channels are namely arranged; And the led display unit that is positioned in the middle part of the rectangular array has four adjacent cells, namely has four interface channels to lead to its four adjacent cells respectively.This connected mode of the present invention makes each led display unit have at least two interface channels to be connected with adjacent cells, like this, when having one to break down therein, can receive and send messages by other interface channels, thereby improved the security that connects, guaranteed the reception of data.For example to some led display units, if its certain a connection channel fracture occurs or unstable situation occurs, it is no longer available namely can to judge the data source that this interface channel connects, can seek other three (for example for the led display unit that is positioned at the rectangular array middle part) available data sources so automatically, and the judgement locating information, recover to show data.And provide the trouble light that breaking portion goes wrong and show, also can see through the network-feedback state that is out of order.
The quantity of display unit shown in Figure 5 and arrangement mode just for example, the invention is not restricted to this.For example, in other embodiments of the invention, the quantity M of led display unit can be any one number between 2 to 1000, can be arranged in square array or rectangular array.As other selections, also M led display unit can be arranged in triangular array, trapezoidal array, circular array or oval-shaped array etc.
Matching of the giant-screen that the size of the source picture of data source end equipment and shape and the display unit of distal displayed equipment are formed.In general a display module has fixing resolution, and a plurality of display units are formed one and shown module, can be installed in the casing, so that project installation.For example when the picture of source data end is the 2048*1024 pixel, if the giant-screen of distal displayed equipment is made up of 128*64 display unit, the pixel that each display unit shows is that 16*16 is individual (for example, 16*16 LED shows point), its display control module also is arranged to control 16*16 pixel.When the picture of source data end was 512*512, if the giant-screen of distal displayed equipment is made up of 32*32 display unit, the pixel that each display unit shows was 16*16.In an embodiment of the present invention, source data is the corresponding display mode that shows point of a pixel to the image between the display unit, and the data stream labeling module forms data stream from source data appointed area data intercept, marks, and sends by control module.
Fig. 6 is the structural representation of the led display unit 22 in the distal displayed equipment shown in Figure 4.As shown in Figure 6, led display unit 22 comprises a LED display module 230 and a coupled display control module 220.In the present invention, LED display module 230 comprises printed circuit board (PCB) and is arranged on a plurality of light emitting diodes (LED) on this printed circuit board (PCB), and these LED constitute luminous dot matrix, and M LED display module has been combined into the LED giant-screen.The LED giant-screen that is combined into like this can be for example square, rectangle, triangle, trapezoidal, circular, ellipse etc.
As shown in Figure 6, display control module 220 comprises:
Locating module 224 is used for determining that led display unit is in the position of described latticed arrangement;
Show information acquisition module 228, be used for the sub-image data corresponding with the shown sprite of described LED display module marked, and send it back data source end equipment by described transceiver module and main control module, with the duty of monitoring led display unit;
Display control module is realized jointly by IC chip and peripheral circuit thereof and software, temperature information acquisition module 229, be used for gathering the temperature information of IC chip, and described temperature information is sent to described main control module, send to data source end equipment by main control module, with the duty of monitoring led display unit; And
Interface channel monitoring modular 223 is used for the connectedness of the interface channel of monitoring and adjacent LED display unit, and when described interface channel breaks down, sends warning message (comprise trouble light and/or send failure message to data source end equipment).
In the present invention, can obtain environmental concerns information by protocol test.Concrete process is: by crossing the reception data and analyzing data and establish channel status.If never signal disconnects so, jitter, link plays pendulum just worthless so.Only detect a stable signal, this link is only the interface channel that can use so.
In addition, do not show that know as is known to the person skilled in the art, except the LED display module, distal displayed equipment 20 also comprises audio conversion module, control information acquisition module etc. though among Fig. 6.Each led display unit 22 is according to the parameter of self and the markup information on the data stream, and separation obtains one's own data.Simultaneously, each display control module also can gather the screen message data, with the information data of the interface channel of adjacent cells and the temperature data of the IC in the display control module self etc., use same protocol architecture, add markup information, feed back to the data source end by whole switching route system.Data source end equipment can be understood ruuning situation and the screen ruuning situation of far-end LED display control module according to feedack.
Each display control module basis control information up and down, when each synchronous clock arrives, information around judging is according to the position of four information expansions oneself, and the court's diffusion all around again of this information, in the time of individual synchronizing cycle of N (grid breadth extreme or height), just can expand the position at current place like this, need to consider the abnormal conditions that connect and corresponding handling it simultaneously.
For example, in one embodiment of the invention, adopt following location algorithm:
Input/output state up and down is divided into five kinds of states: the unknown, to deduce, locking disconnects, and is inadvisable.
1. after powering on for each module, its initialized base position (0,0), four Link States are unknown up and down; Its module status is the deduction state
2. when next synchronous clock arrives, each module at first to its up and down four links externally export the deduction result, and secondly calculate according to the input of up and down link and judge own right state outcome.
3. the state when some direction links is not to disconnect or inadvisable state, and after keeping no longer changing data N (N gets a fixed maximum values), forms locking relation;
4. when a certain link was in locking relation, certain detected the data instability on this link when being all arrival synchronously, and the link of revising this direction so is inadvisable state;
5. the link twocouese when certain direction all is locking relation, and expression is a stable connection;
6. a direction when certain module is not locking relation, is locking relation but detect this module another one direction, gets locking relation so and is as the criterion, and concerns Data transmission to deducing;
When certain module four direction all be locking relation, but certain clock period calculate with around the module coordinate conflict, remove locking relation around two modules of conflict so, get back to deduction state (keeps state inadvisable and disconnection constant);
8. the linking status of working as a direction of certain module is lock-out state, and after conflict N time (N gets a fixed maximum values), this direction relations is revised as unreliable relation so;
9. the data transmission is only in locking relation, and ability is desirable;
10. only in the data that from locking relation, obtain, just can mark.
Be example with array shown in Figure 5, after the energising, the position coordinates that all display control modules are all given tacit consent to oneself is x0 y0, and four ports send x+1 y+1 x-1 y-1 up and down.With each clock period be unit (such as, 1 nanosecond), with regard to 5 modules of first row, first clock period, the x of 5 modules is 0, just 00000.At this time, beginning output, ignore the y axle, only take the x axle to do example explanation, is example with that module of middle, and it thinks it is x0 itself, towards left side output x-1, towards the right output x+1.All the other modules also are so to think, at this time, the state that each module has is exactly the state of first clock of 5 modules cutting apart of comma when finishing:
Form (state that the 0[left side passes over], the 0[oneself state], the state that 0[the right passes over]) (0,0 ,-1), (+1,0 ,-1), (+1,0 ,-1), (+1,0 ,-1), (+1,0,0)
So locating module (chip) just begins value, only get on the occasion of, negative value not very.When second clock period began so, the state of these 5 modules then was 0,1,1,1,1, began to send data (0,0,0) then again, (1,1,0), (2,1,0), (2,1,0), (2,1,0)
The 3rd clock period, the state of these 5 modules then was 0,1,2,2 when beginning, 2 (0,0,0), (1,1,0), (2,2,1), (3,2,1), (3,2,0)
The 4th clock period, the state of these 5 modules then was 0,1,2,3,3 when beginning
The 5th clock period, the state of these 5 modules then was 0,1,2,3,4 when beginning
Last being confirmed to be when array is stable in several clock period no longer changes, and then is judged as the definite of array position and finishes.
Fig. 7 is the synoptic diagram of LED large screen display control system 700 according to an embodiment of the invention.As shown in Figure 7, distal displayed equipment comprises 9 display units, becomes the arrangement of 3 row, 3 row.Multi-channel video signal from inside or external memory storage inputs to the data stream labeling module, the latter handles it, seals up a layer protocol in data stream, marks detailed supplementary, convert the network protocol layer data stream then to, send to distal displayed equipment via the gigabit transmission system again.The information that passback monitoring is in real time passed back display device is for no reason analyzed, with the duty of monitoring distal displayed equipment.
Bus structure and display unit grid distributed architecture based on LED large screen display control system of the present invention, give full play to the advantage of mark protocol architecture on this basis and used initiatively optimization algorithm, guarantee that each shows that carrier can clearly establish environmental concerns, avoid in the dynamic interaction system because the transmission that signal circuit produces obstruct, avoid exporting the bus collision that data produce towards the other side mutually by two demonstration carriers, avoided increasing the overlapping interference that redundant input causes owing to guarantee security, the problem that multiple dynamic switching such as concussion swing etc. and reorganization bring has obtained well display consistency fast.
Fig. 8 is the process flow diagram of LED large screen display control method 800 of the present invention.As shown in Figure 8, method 800 comprises:
In step 810, data source end device power-up powers on.And in step 820, distal displayed equipment (comprising main control module and display unit) start powers on; And then in step 822, each display unit in the distal displayed equipment is determined this display unit residing position in giant-screen.
Subsequently, data source end equipment can carry out Broadcast Control to distal displayed equipment, comprising: in step 812, in data source end equipment data are flow to the data stream that rower annotates and will mark and be sent to distal displayed equipment.Afterwards, in step 823, the main control module in the distal displayed equipment receives the data stream that has mark, and data stream is converted to the metadata that has mark and is broadcast to M led display unit.In step 824, each in M led display unit receives metadata.In step 826, each led display unit markup information in position-based information and the metadata from the metadata that receives obtains the sub-image data of corresponding its position and shows.
Method of the present invention also can comprise the steps: step 830, and the shown corresponding sub-image data of sprite of display module marks in the display control module in the display unit pair and this unit, and sends to main control module; In step 832, the sub-image data that has mark that main control module will receive sends to data source end equipment.In step 834, data source end equipment receives the sub-image data that has mark.In step 836, whether data source end device analysis markup information is normal to judge the distal displayed picture.When determining that in step 836 picture shows under the normal situation, method 800 turns back to step 812 and continues to carry out.When determining that in step 836 picture shows under abnormal situation, enter step 838, send warning message, remind managerial personnel to safeguard distal displayed equipment/to keep in repair.
Step 830,832,834,836 and 838 with dashed lines frame tables show that it is optional step, as preferred embodiment.
Among the present invention, the content of mark system can be with reference to ITUR656, SMPTE125.In one embodiment of this invention, the mistake range code of adding mark is as follows in metadata:
Transfer_Package
begin
.Start_Transfer_Mark
begin
.TransLink_SAV
Start_Transfer_Mark_end
.Head
begin
.Sync_Map_Infomation
begin
.Package_V_number
.Package_H_number
Sync_Map_Infomation_end
.Neighbour_Enviroment_Infomation
begin
.Neighbour_Enviroment_V_number
.Neighbour_Enviroment_H_number
Neighbour_Enviroment_Infomation_end
.Expand_infomation
begin
.Expand_Data：include?Audio\Command\etc.，
Expand_infomation_end
Head_end
.Bady
Begin
.Base_RGB_Data
Bady_end
.End_Transfer_Mark
begin
.TransLink_EAV
End_Transfer_Mark_end
Transfer_Package_end
In other embodiments of the invention, also can comprise other optional steps:
For example: the temperature information of gathering IC chip in the led display unit; When being higher than predetermined threshold, temperature sends warning message to data source end equipment, with the duty of monitoring led display unit.Perhaps, gather the temperature information of IC chip in the led display unit; Described temperature information is sent to data source end equipment, with the monitoring led display unit duty and when temperature is higher than predetermined threshold, report to the police.This step can continue to carry out in the course of work of distal displayed equipment, namely monitors in real time, reports to the police immediately in case the temperature superelevation occurs.
Again for example: the interface channel of led display unit monitoring and adjacent LED display unit, and when interface channel breaks down, send warning message.For example, light trouble light and/or transmission failure message to data source end equipment.This step can be carried out when the distal displayed device power, also can constantly carry out constantly in the course of work of distal displayed equipment.
Compare with traditional LED large screen display control system, technical scheme of the present invention has following characteristics: 1) employing novel gridding structure, 2 on the display structure) employing broadcast type bus, 3 on the transfer bus) bus data stream uses the notesization language, 4 of failing to be sold at auction) scan control unit employing intelligent algorithm, and 5) automatic expansion position and fault-tolerant processing, 6) unique 16-24bit color gray-scale Control, and make sweep frequency be promoted to 3Khz.
Technical scheme of the present invention has following beneficial effect:
1) the invisible delay of no datat buffer memory, real real time high-speed transmission and synchronously stable; Demonstration transfers out by kilomega network through the speed of data stream mark device transmission with 1Gbps with the data of per second 60 frames, showing that refreshing frequency reaches under the speed conditions of per second 3k frame, is not have overflow status.
2) data stream mark characteristic information can be accomplished rapid data location and recovery;
3) the quick location of fault and recovery automatically, intelligence feedback abort situation reduces maintenance cost.
4) the automatic location based on network makes large display screen of the present invention have the function of freely expanding.That is to say that current grid can be unconfined towards the new screen unit of top increase.And newly-increased need not also needs to reorientate as traditional product, writes locating information.
Though this paper is to be that example is described with LED, to know as is known to the person skilled in the art, technical scheme of the present invention also can be applicable to LCD, CRT splicing large screen demonstration control, and many picture segmentation and combination etc.
Claims (10)
1. a LED large screen display control method is characterized in that, described LED giant-screen comprises M led display unit, wherein M 〉=2; A described M led display unit is latticed arrangement, and each led display unit communicates by letter with adjacent led display unit up and down and link to each other, and adjacent led display unit exports data towards the other side mutually, and described display control method comprises the steps:
In data source end equipment:
Entire stream is marked;
The data stream that has marked is sent to distal displayed equipment; And
In distal displayed equipment:
Reception has the data stream of mark;
The described data stream that has mark is converted to the metadata that has mark and is broadcast to M led display unit;
In M led display unit each receives metadata and obtains the sub-image data of corresponding its position and show that described sub-image data is the part of described metadata based on the markup information in its positional information and the described metadata from the metadata that receives.
2. LED large screen display control method according to claim 1, it is characterized in that the positional information of each in the described M led display unit is to be determined by the locating module in the display control module in each of M led display unit when the distal displayed device power-up powers on.
3. LED large screen display control method according to claim 1 and 2 is characterized in that, also comprises:
The described led display unit pair sub-image data corresponding with its shown sprite marks, and sends it back data source end equipment by main control module;
Data source end equipment receives described sub-image data and analyzes markup information, with duty and the warning when described led display unit breaks down of monitoring described led display unit.
4. LED large screen display control method according to claim 1 is characterized in that, also comprises:
Gather the temperature information of IC chip in the led display unit;
Described temperature information is sent to data source end equipment, reports to the police with the duty of monitoring described led display unit and when the temperature of IC chip is higher than predetermined threshold in described led display unit.
5. LED large screen display control method according to claim 1 is characterized in that, comprising: the interface channel of described led display unit monitoring and adjacent LED display unit, and when described interface channel breaks down, send warning message.
6. a LED large screen display control system comprises data source end equipment and communicates with continuous distal displayed equipment, it is characterized in that,
Described data source end equipment comprises the data stream labeling module, is used for the entire stream that will be sent to distal displayed equipment is sealed up the mark agreement;
Described distal displayed equipment comprises main control module and M led display unit, the data stream that has mark from described data source end equipment that described main control module will receive is converted to the metadata that has mark and is broadcast to a described M led display unit, wherein M 〉=2;
Wherein, a described M led display unit is latticed arrangement and each led display unit and adjacent led display unit up and down and communicates by letter and link to each other and adjacent led display unit is exported data towards the other side mutually; Each described led display unit comprises a LED display module and a display control module that links to each other with the LED display module, and wherein M LED display module formed described LED giant-screen,
Wherein said display control module comprises:
Transceiver module is used for communicating with main control module and adjacent LED display unit;
Locating module is used for determining that led display unit is in the positional information of described latticed arrangement;
The picture extraction module is used for obtaining the sub-image data of corresponding led display unit position based on the markup information described positional information and the described metadata and showing that described sub-image data is the part of described metadata from the metadata that receives.
7. LED large screen display control system according to claim 6 is characterized in that described display control module also comprises:
Show information acquisition module, be used for the sub-image data corresponding with the shown sprite of described LED display module marked, and send it back data source end equipment by described transceiver module and main control module, with the duty of monitoring led display unit.
8. according to claim 6 or 7 described LED large screen display control system, it is characterized in that, described display control module comprises IC chip and peripheral circuit, also comprise the temperature information acquisition module, be used for gathering the temperature information of described IC chip, and described temperature information is sent to described main control module, send to data source end equipment by described main control module, with the duty of monitoring led display unit.
9. according to claim 6 or 7 described LED large screen display control system, it is characterized in that, described display control module also comprises the interface channel monitoring means, the connectedness that is used for the interface channel of monitoring and adjacent LED display unit, and when described interface channel breaks down, send warning message.
10. according to claim 6 or 7 described LED large screen display control system, it is characterized in that, the described LED giant-screen that described M LED display module is combined into be shaped as rectangle, triangle, trapezoidal, circular or oval.
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| CN2010102483677A CN102157141B (en) | 2010-08-09 | 2010-08-09 | LED large screen display control system and method |
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| CN2010102483677A CN102157141B (en) | 2010-08-09 | 2010-08-09 | LED large screen display control system and method |
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| CN102446503A (en) * | 2011-10-28 | 2012-05-09 | 广东威创视讯科技股份有限公司 | Window representation method and system used for big splicing wall signal source alarm |
| CN104157218B (en) * | 2014-07-31 | 2017-02-08 | 广东威创视讯科技股份有限公司 | Positioning method and system of LED display screen lamp panels and display units |
| CN104299564B (en) * | 2014-09-11 | 2017-03-08 | 青岛海研电子有限公司 | A kind of LED display fault self- recoverage control system |
| CN104505056B (en) * | 2014-12-26 | 2018-07-10 | 广东威创视讯科技股份有限公司 | A kind of splicing system of LED unit and its address method for routing |
| CN104464554A (en) * | 2014-12-30 | 2015-03-25 | 广东威创视讯科技股份有限公司 | LED display splicing system splicing unit identification ID generating method |
| CN106155616A (en) * | 2015-05-11 | 2016-11-23 | 佰路得信息技术(上海)有限公司 | A kind of multimedia interaction display system |
| CN104992666A (en) * | 2015-06-30 | 2015-10-21 | 苏州合欣美电子科技有限公司 | LED display screen anti-fault system |
| CN105139770A (en) * | 2015-09-29 | 2015-12-09 | 深圳市汉丰光电有限公司 | Rapidly spliced LED display system and display method thereof |
| CN105468326B (en) * | 2016-01-08 | 2020-03-31 | 京东方科技集团股份有限公司 | Display device and method and device for adjusting information channel of display device |
| CN106227495B (en) * | 2016-08-29 | 2019-07-26 | 北京易华录信息技术股份有限公司 | A kind of data display method, apparatus and system |
| CN106604004B (en) * | 2016-12-16 | 2019-07-12 | 广东威创视讯科技股份有限公司 | The error information displaying method and system of joined screen display unit |
| CN111385504B (en) * | 2018-12-29 | 2022-07-29 | 深圳Tcl新技术有限公司 | Control method of spliced television |
| CN110010015A (en) * | 2019-03-01 | 2019-07-12 | 深圳市大像视讯科技有限公司 | A kind of intelligent LED display |
| CN110502204A (en) * | 2019-08-26 | 2019-11-26 | 深圳蓝普科技有限公司 | A kind of splice displaying system and its signal control method |
| CN112331133A (en) * | 2020-08-24 | 2021-02-05 | 浙江宇视科技有限公司 | Display control method, device, medium and system of LED screen |
| CN112967644A (en) * | 2020-11-13 | 2021-06-15 | 重庆康佳光电技术研究院有限公司 | Correction method and device for tiled display device, storage medium and electronic device |
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