CN104932861B - The means of communication and device of a kind of Mosaic screen - Google Patents
The means of communication and device of a kind of Mosaic screen Download PDFInfo
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- CN104932861B CN104932861B CN201510435382.5A CN201510435382A CN104932861B CN 104932861 B CN104932861 B CN 104932861B CN 201510435382 A CN201510435382 A CN 201510435382A CN 104932861 B CN104932861 B CN 104932861B
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Abstract
The present invention provides a kind of means of communication of Mosaic screen, the described method includes：When the row address of screen subelement is greater than or equal to the start of line address of default unit group and less than or equal to the row end address of default unit group；And when the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to the row end address of default unit group；Then, Splicing model and switching signal source are changed.This patent can greatly reduce control instruction transmission, accelerate large-size screen monitors control response.
Description
Technical field
The present invention relates to the means of communication and device of field of communication technology, more particularly to a kind of Mosaic screen.
Background technology
The RS-232 used in product is shown in large screen splicing at present, in order to realize one-to-many bus mastering mode, firmly
Part uses the mode of communicating that ring connects, and multiple display units is connected to middle control unit by the way of serial or parallel, such as attached drawing 1
Shown 4 (Row) x 6 (Col) large screen splicing screen.
Existing control technology is that each display unit is defined as unique address, and middle control unit uses point-to-point side
Formula, the states such as Splicing model and signal source is sent to each display unit one by one, so as to fulfill large screen splicing pattern and scene
Control.
Need to apply remote control technology in large screen splicing shows product, RS-232 be it is most basic and most commonly used,
One is only needed to send (TX), one receives (RX) and a ground wire, it is possible to duplex signaling is carried out, 300 to 19200Bps ripples
Under special rate, the transmittable 20m of maximum；But after the scale of large screen splicing reaches more than 4x4, the initialization for scene of starting shooting or scene switching
When, the communication between host and distributed concatenation unit can cause huge delay, and can be as the increase of concatenation unit is into one
Step is cumulative, by taking the splicing of 4x6 as an example, sends the RS-232 control instruction meetings such as Splicing model and the information source selection of other 24 display units
The delay of increase by 5 to 8 seconds.In handoff scenario, existing technology need to send three Splicing models spliced and combined and signal source
24 display units are given to, 24 group informations need to be sent.
The content of the invention
In view of this, it is a primary object of the present invention to provide a kind of means of communication of Mosaic screen, can greatly subtract
Few control instruction is sent, and accelerates large-size screen monitors control response, to reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
When the row address of screen subelement is greater than or equal to the start of line address of default unit group and less than or equal to default
The row end address of unit group；And
When the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to default
The row end address of unit group；
Then change Splicing model and switching signal source.
The above method according to the present invention, including：
The row address of screen subelement is obtained according to the element address of screen subelement and the matrix columns for combining screen；
Obtained according to the matrix columns of the element address of screen subelement, the row address of screen subelement and combination screen
The column address of screen subelement.
The above method according to the present invention, including：
The start of line address and row starting point of default unit group are obtained according to the element address of screen upper left corner subelement
Location；
The start of line address and row starting point of default unit group are obtained according to the element address of screen lower right corner subelement
Location.
The above method according to the present invention, including：
Default unit group is obtained according to the element address of screen upper left corner subelement and the matrix columns for combining screen
Start of line address；
According to the square of the element address of screen upper left corner subelement, the start of line address of default unit group and combination screen
Number of arrays obtains the row initial address of default unit group；
Default unit group is obtained according to the element address of screen lower right corner subelement and the matrix columns for combining screen
Row end address；
According to the square of the element address of screen lower right corner subelement, the row end address of default unit group and combination screen
Number of arrays obtains the row end address of default unit group.
The above method according to the present invention, including：
When the row address of screen subelement is less than the start of line address of default unit group, or the row address when screen subelement
More than the row end address of default unit group；Or,
When the column address of screen subelement is less than the row initial address of default unit group, or the row address when screen subelement
More than the row end address of default unit group；
Splicing model and switching signal source are not changed then.
According to another aspect of the present invention, a kind of communication device of Mosaic screen is also provided, including：
First execution module：When the row address of screen subelement is greater than or equal to the start of line address of default unit group and small
In or equal to default unit group row end address；And
When the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to default
The row end address of unit group；
It is used to change Splicing model and switching signal source.
According to another aspect of the present invention, including：
Sub-line address module：It is used to be obtained according to the element address of screen subelement and the matrix columns of combination screen
The row address of screen subelement；
Sub- column address module：According to the element address of screen subelement, the row address of screen subelement and combination screen
Matrix columns obtain screen subelement column address.
According to another aspect of the present invention, including：
Group starting module：It is used for the start of line that default unit group is obtained according to the element address of screen upper left corner subelement
Address and row initial address；
Group terminate module：It is used for the start of line that default unit group is obtained according to the element address of screen lower right corner subelement
Address and row initial address.
According to another aspect of the present invention, further include：
Group start of line module：It is used for the rectangular array of the element address and combination screen according to screen upper left corner subelement
Number obtains the start of line address of default unit group；
Group row starting module：It is used for the element address according to screen upper left corner subelement, the start of line of default unit group
The matrix columns of address and combination screen obtains the row initial address of default unit group；
Group row terminate module：It is used for the rectangular array of the element address and combination screen according to screen lower right corner subelement
Number obtains the row end address of default unit group；
Group row terminate module：It is used for the element address according to screen lower right corner subelement, the row of default unit group terminates
The matrix columns of address and combination screen obtains the row end address of default unit group.
According to another aspect of the present invention, further include：
Second execution module：When the row address of screen subelement is less than the start of line address of default unit group, or work as screen
The row address of subelement is more than the row end address of default unit group；Or,
When the column address of screen subelement is less than the row initial address of default unit group, or the row address when screen subelement
More than the row end address of default unit group；
It is used to not change Splicing model and switching signal source.
The row that method provided in an embodiment of the present invention is greater than or equal to default unit group when the row address of screen subelement rises
Beginning address and less than or equal to the row end address of default unit group；And when the column address of screen subelement is greater than or equal in advance
If the row initial address of unit group and the row end address for being less than or equal to default unit group；Then, change Splicing model and switch
Signal source.Only standard RS-232 communications are optimized, delay can be made to control substantially at normal 1 to 2 second.The art of this patent is
Using diagonal positioning method, the status information such as the various Splicing models of broadcast transmission and signal source, after concatenation unit receives, through solution
The states such as the Splicing model and signal source of this display unit are determined after code.By taking the Mosaic screen of attached drawing 1 as an example, the art of this patent is only
The diagonal information and signal source that broadcast transmission three splices and combines are needed, 3 group informations need to be sent, this patent can greatly reduce control
System instruction is sent, and accelerates large-size screen monitors control response.
Brief description of the drawings
Fig. 1 is a kind of Mosaic screen provided in an embodiment of the present invention；
Fig. 2 realizes flow chart for a kind of means of communication of Mosaic screen provided in an embodiment of the present invention；
Fig. 3 is a kind of module map of the communication device of Mosaic screen provided by Embodiment 2 of the present invention；
Embodiment
It is by the following examples and referring to the drawings, right for the object, technical solutions and advantages of the present invention are more clearly understood
The present invention is further described.
What Fig. 2 showed a kind of means of communication of Mosaic screen provided in an embodiment of the present invention realizes flow chart, such as Fig. 2 institutes
Show, the described method includes following step：
Step 101, when the row address of screen subelement is greater than or equal to the start of line address of default unit group and be less than or
Equal to the row end address of default unit group；And the row for being greater than or equal to default unit group when the column address of screen subelement rise
Beginning address and less than or equal to the row end address of default unit group；
Then, Splicing model and switching signal source are changed.
The present invention using the diagonal two panels screen of large screen splicing combination address, determine to splice and combine in the range of, that is, determine
Default unit group, as shown in Figure 1, No. 3 screens are the upper left corner of combination, and No. 24 screens are the lower right corner of combination.
Middle control unit sends control instruction：CMD, 0X03,0x18,0x01, CRC are used for handoff response screen, wherein, CMD
For switching command, 0X03 is the element address of upper left corner subelement, and 0x18 is the element address of lower right corner subelement, and 0x01 is letter
Number source, CRC are used to store check value.
Specifically, the row address and column address of screen subelement are obtained according to the element address of screen subelement；
The row address of screen subelement is obtained according to the element address of screen subelement and the matrix columns for combining screen；
Obtained according to the matrix columns of the element address of screen subelement, the row address of screen subelement and combination screen
The column address of screen subelement.
By taking large screen splicing pattern (4x 6) matrix as an example, but it is not limited to (4x 6) matrix Mosaic screen, screen splicing square
Number of arrays is 6 row, and Unit_Row represents the row address of screen subelement, and Unit_Col represents the column address of screen subelement；
If the address of initial row and starting row is started counting up from 0, it is calculated as follows：
Unit_Row=(element address -1)/6
Unit_Col=element addresses-Unit_Row*6-1
If the address of initial row and starting row is started counting up from 1, it is calculated as follows：
Unit_Row=(element address -1)/6+1
Unit_Col=element addresses-Unit_Row*6
The start of line address and row starting point of default unit group are obtained according to the element address of screen upper left corner subelement
Location；
The start of line address and row starting point of default unit group are obtained according to the element address of screen lower right corner subelement
Location.
Specifically,
Default unit group is obtained according to the element address of screen upper left corner subelement and the matrix columns for combining screen
Start of line address；
According to the square of the element address of screen upper left corner subelement, the start of line address of default unit group and combination screen
Number of arrays obtains the row initial address of default unit group；
Still by taking large screen splicing pattern (4x 6) matrix as an example, screen splicing matrix columns arranges for 6, Group_Row_
Start represents the start of line address of default unit group；Group_Col_Start represents the row initial address of default unit group；
If the address of initial row and starting row is started counting up from 0, it is calculated as follows：
Group_Row_Start=(element address -1 of upper left corner subelement)/6
Element address-the Group_Row_Start*6-1 of Group_Col_Start=upper left corners subelement
If the address of initial row and starting row is started counting up from 1, it is calculated as follows：
Group_Row_Start=(element address -1 of upper left corner subelement)/6+1
Element address-the Group_Row_Start*6 of Group_Col_Start=upper left corners subelement
Default unit group is obtained according to the element address of screen lower right corner subelement and the matrix columns for combining screen
Row end address；
According to the square of the element address of screen lower right corner subelement, the row end address of default unit group and combination screen
Number of arrays obtains the row end address of default unit group.
If the address of initial row and starting row is started counting up from 0, it is calculated as follows：
Group_Row_End=(element address -1 of lower right corner subelement)/6
Element address-the Group_Row_End*6-1 of Group_Col_End=lower right corner subelement
If the address of initial row and starting row is started counting up from 1, it is calculated as follows：
Group_Row_End=(element address -1 of lower right corner subelement)/6+1
Element address-the Group_Row_End*6 of Group_Col_End=lower right corner subelement
Step 102, when the row address of screen subelement is less than the start of line address of default unit group, or when screen subelement
Row address be more than the row end address of default unit group；Or,
When the column address of screen subelement is less than the row initial address of default unit group, or the row address when screen subelement
More than the row end address of default unit group；
Then, Splicing model and switching signal source are not changed.
A kind of communication device for Mosaic screen that the embodiment of the present invention also provides, each function module of the device is available for upper
The flow of embodiment of the method is stated, specifically refers to Fig. 3, including：First execution module 31；Wherein,
First execution module 31：When the row address of screen subelement be greater than or equal to the start of line address of default unit group and
Less than or equal to the row end address of default unit group；And
When the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to default
The row end address of unit group；
It is used to change Splicing model and switching signal source.
Wherein, the communication device of the Mosaic screen, further includes：
Sub-line address module 301：It is used for the matrix columns of the element address and combination screen according to screen subelement
Obtain the row address of screen subelement；
Sub- column address module 302：According to the element address of screen subelement, the row address of screen subelement and combination screen
The matrix columns of curtain obtains the column address of screen subelement.
Further include：
Group starting module 303：It is used for the row that default unit group is obtained according to the element address of screen upper left corner subelement
Initial address and row initial address；
Group terminate module 304：It is used for the row that default unit group is obtained according to the element address of screen lower right corner subelement
Initial address and row initial address.
Wherein, starting module 303 is organized, including：
Group start of line module 3031：It is used for the square of the element address and combination screen according to screen upper left corner subelement
Number of arrays obtains the start of line address of default unit group；
Group row starting module 3032：It is used for the element address according to screen upper left corner subelement, the row of default unit group
The matrix columns of initial address and combination screen obtains the row initial address of default unit group；
Wherein, terminate module 304 is organized, including：
Group row terminate module 3041：It is used for the square of the element address and combination screen according to screen lower right corner subelement
Number of arrays obtains the row end address of default unit group；
Group row terminate module 3042：It is used for the element address according to screen lower right corner subelement, the row of default unit group
The matrix columns of end address and combination screen obtains the row end address of default unit group.
Wherein, the communication device of the Mosaic screen, further includes：
Second execution module 32：When the row address of screen subelement is less than the start of line address of default unit group, or when screen
The row address of curtain subelement is more than the row end address of default unit group；Or,
When the column address of screen subelement is less than the row initial address of default unit group, or the row address when screen subelement
More than the row end address of default unit group；
It is used to not change Splicing model and switching signal source.
Communication device provided by the invention based on Mosaic screen, each module routine and above method embodiment class
Seemingly, details are not described herein.
The means of communication and device of a kind of Mosaic screen provided in an embodiment of the present invention, can communicate standard RS-232 and do
Optimization, can be such that the delay controls substantially at normal 1 to 2 second.Using diagonal positioning method, the various Splicing models of broadcast transmission
And the status information such as signal source, after concatenation unit receives, Splicing model and signal source of this display unit etc. are determined after decoded
State.By taking the Mosaic screen of attached drawing 1 as an example, the art of this patent only needs the diagonal information and letter that broadcast transmission three splices and combines
Number source, need to send 3 group informations, and this patent can greatly reduce control instruction transmission, accelerate large-size screen monitors control response.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The relevant hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, execution the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution described in foregoing embodiments, either to which part or all technical characteristic into
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (4)
- A kind of 1. means of communication of Mosaic screen, it is characterised in that the described method includes：When the row address of screen subelement is greater than or equal to the start of line address of default unit group and less than or equal to default unit The row end address of group；AndWhen the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to default unit The row end address of group；Then change Splicing model and switching signal source；Wherein, the calculation of the row address of the screen subelement is：The row address of screen subelement is obtained according to the element address of screen subelement and the matrix columns for combining screen；The calculation of the column address of the screen subelement is：Screen is obtained according to the matrix columns of the element address of screen subelement, the row address of screen subelement and combination screen The column address of subelement；The calculation of the start of line address of the default unit group is：The row of default unit group is obtained according to the element address of screen upper left corner subelement and the matrix columns for combining screen Beginning address；The calculation of the row initial address of the default unit group is：According to the rectangular array of the element address of screen upper left corner subelement, the start of line address of default unit group and combination screen Number obtains the row initial address of default unit group；The calculation of the row end address of the default unit group is：The row knot of default unit group is obtained according to the element address of screen lower right corner subelement and the matrix columns for combining screen Beam address；The calculation of the row end address of the default unit group is：According to the rectangular array of the element address of screen lower right corner subelement, the row end address of default unit group and combination screen Number obtains the row end address of default unit group.
- A kind of 2. means of communication of Mosaic screen according to claim 1, it is characterised in that including：When the row address of screen subelement is less than the start of line address of default unit group, or when the row address of screen subelement is more than The row end address of default unit group；Or,When the column address of screen subelement is less than the row initial address of default unit group, or when the row address of screen subelement is more than The row end address of default unit group；Splicing model and switching signal source are not changed then.
- A kind of 3. communication device of Mosaic screen, it is characterised in that including：First execution module：When the row address of screen subelement is greater than or equal to the start of line address of default unit group and be less than or Equal to the row end address of default unit group；AndWhen the column address of screen subelement is greater than or equal to the row initial address of default unit group and less than or equal to default unit The row end address of group；It is used to change Splicing model and switching signal source；Wherein, first execution module includes sub-line address module, sub- column address module, group start of line module, group row starting Module, group row terminate module and group row terminate module；Wherein, the sub-line address module：It is used for the rectangular array of the element address and combination screen according to screen subelement Number obtains the row address of screen subelement；The sub- column address module：According to the element address of screen subelement, the row address of screen subelement and combination screen Matrix columns obtain screen subelement column address；Described group of start of line module：It is used for the rectangular array of the element address and combination screen according to screen upper left corner subelement Number obtains the start of line address of default unit group；Described group of row starting module：It is used for the element address according to screen upper left corner subelement, the start of line of default unit group The matrix columns of address and combination screen obtains the row initial address of default unit group；Described group of row terminate module：It is used for the rectangular array of the element address and combination screen according to screen lower right corner subelement Number obtains the row end address of default unit group；Described group of row terminate module：It is used for the element address according to screen lower right corner subelement, the row of default unit group terminates The matrix columns of address and combination screen obtains the row end address of default unit group.
- A kind of 4. communication device of Mosaic screen according to claim 3, it is characterised in that including：Second execution module：When the row address of screen subelement is less than the start of line address of default unit group, or when screen is single The row address of member is more than the row end address of default unit group；Or,When the column address of screen subelement is less than the row initial address of default unit group, or when the row address of screen subelement is more than The row end address of default unit group；It is used to not change Splicing model and switching signal source.
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| CN111510646A (en) * | 2020-04-29 | 2020-08-07 | 京东方科技集团股份有限公司 | Video display method, display device, computer equipment and medium of spliced screen |
Citations (5)
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| CN102646032A (en) * | 2012-04-16 | 2012-08-22 | 杭州海康威视数字技术股份有限公司 | Distributed screen splicing control system and control method |
| CN102736885A (en) * | 2012-06-28 | 2012-10-17 | 江苏清投视讯科技有限公司 | Multi-screen display technology based on wireless transmission |
| CN103680470A (en) * | 2012-09-03 | 2014-03-26 | 杭州海康威视数字技术股份有限公司 | Large screen control image display method and system |
| CN104125494A (en) * | 2014-07-07 | 2014-10-29 | 四川中电启明星信息技术有限公司 | Distributed playing scene picture splicing method for large screen |
| CN104270626A (en) * | 2014-10-29 | 2015-01-07 | 宁波维真显示科技有限公司 | Glasses-free 3D joint wall jointing method |
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| EP1963953A4 (en) * | 2005-12-23 | 2010-08-11 | Pier Ab | Display of an electronic shelf label |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646032A (en) * | 2012-04-16 | 2012-08-22 | 杭州海康威视数字技术股份有限公司 | Distributed screen splicing control system and control method |
| CN102736885A (en) * | 2012-06-28 | 2012-10-17 | 江苏清投视讯科技有限公司 | Multi-screen display technology based on wireless transmission |
| CN103680470A (en) * | 2012-09-03 | 2014-03-26 | 杭州海康威视数字技术股份有限公司 | Large screen control image display method and system |
| CN104125494A (en) * | 2014-07-07 | 2014-10-29 | 四川中电启明星信息技术有限公司 | Distributed playing scene picture splicing method for large screen |
| CN104270626A (en) * | 2014-10-29 | 2015-01-07 | 宁波维真显示科技有限公司 | Glasses-free 3D joint wall jointing method |
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