CN102024446B - Large-screen spliced wall display device and method - Google Patents
Large-screen spliced wall display device and method Download PDFInfo
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- CN102024446B CN102024446B CN 201010558334 CN201010558334A CN102024446B CN 102024446 B CN102024446 B CN 102024446B CN 201010558334 CN201010558334 CN 201010558334 CN 201010558334 A CN201010558334 A CN 201010558334A CN 102024446 B CN102024446 B CN 102024446B
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Abstract
The invention discloses a large-screen spliced wall display device and a large-screen spliced wall display method. The device comprises a video acquiring unit, a video routing unit, a video zooming unit, a video overlying unit, a video display unit and a video analyzing and controlling unit. The method comprises the following steps of: acquiring a video signal by using the video acquiring unit; analyzing the video signal by using the video analyzing and controlling unit and correspondingly transmitting control signals to the video routing unit, the video zooming unit and the video overlying unit respectively; performing interleaved routing, zooming and overlying respectively on the video signal by using each unit according to the control signals; transmitting the video signal to the video display unit; and displaying each path of signals in a corresponding screen area and transmitting the physical position of each unit on the entire spliced wall to the video analyzing and controlling unit by using the video display unit. The display device has the advantages of automatic and accurate window opening, plug and play, no need of manual intervention, high intellectualization degree and the like.
Description
Technical field
The present invention relates to combination and show field, particularly a kind of large-screen splicing wall display device and method.
Background technology
Giant-screen digital jointing wall system can show all kinds of Computer signals, vision signal at giant-screen digital jointing wall, form the information display management control system of a cover perfect in shape and function, advanced technology, for the user provides an interactively man-machine interface, satisfy real-time, many picture displies needs of various Dispatch and Command Center.Traditional large-screen splicing wall display device needs in addition a separately external computer, is installed on computers the software of giant-screen uplifting window mouth, and the menucommand by software or mouse action are at the respective regions windowing of combination.This device need to just be understood operation and maintenance through the specialized engineering personnel of training, and cost of human resources is higher.In addition, the position of window is to determine by the sense organ of human eye, and is accurate not.And the control center of this system is on a computer, because computer is open and multi-functional, its stability and the degree of reliability are not high, in case this computer collapses, will cause whole system to use, and have higher Material Cost.
Therefore, but how to provide the large-screen splicing wall display device of a kind of automatic window, plug and play and method to become a problem that has theory and actual value.
Summary of the invention
One object of the present invention is to overcome the shortcoming of prior art with not enough, and a kind of large-screen splicing wall display device is provided, and it has can automatically accurately window, plug and play, need not manual intervention, intelligent degree advantages of higher.
The shortcoming that another object of the present invention is to overcome prior art provides a kind of large-screen splicing wall display packing with not enough.
Purpose of the present invention realizes by following technical scheme: a kind of large-screen splicing wall display device, comprise video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit and video analysis control module, video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects by video bus successively, the video analysis control module by common signal cable respectively with the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects, the video analysis control module is connected with video acquisition unit by video bus, and video acquisition unit is used for gathering outside vision signal; Video display unit is used for the video information after processing to external world's output on the combination; The video analysis control module is used for analyzing priority, the background video signal of form, resolution sizes, the input channel of various video input signals, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority, at last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit.
A kind of large-screen splicing wall display packing based on said apparatus specifically may further comprise the steps:
(1) gathers vision signal by video acquisition unit, then by video bus digitized vision signal is sent to the video analysis control module, the video analysis control module is analyzed the form of various video input signals, resolution sizes, the priority of input channel, background video signal, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority; At last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit;
(2) control signal that transmits according to the video analysis control module of video routing unit to each road video display channel, then enters the video scaling unit by video bus with the vision signal interleaving route of various inputs;
(3) zoom factor of every road vision signal of sending according to the video analysis control module of video scaling unit carries out convergent-divergent to each road signal, then is sent to the video superimpose unit by video bus;
(4) the stack requirement that provides according to the video analysis control module of video superimpose unit superposes each road vision signal accordingly and splices, and exports to video display unit by video bus at last;
(5) video display unit shows each road signal in its corresponding screen area, then the image of all video source being finished through splicing after the convergent-divergent is placed on the central authorities of combination, guarantee central point during layout in the image range of the input channel of high priority, then the physical location of each unit on whole combination is sent to the video analysis control module.
The resolution of input video source is to determine by the row of analyzing vision signal, the time of field synchronization head, the size of pixel clock in the described step (1).
The priority of input channel is determined by the physics input port in the described step (1).
Judge with background signal it is to be put into video to show the lowermost layer of overlap-add region or toply determined by the physics selector switch in the described step (1).
The zoom factor that will obtain each road vision signal in the described step (3) need to be obtained first convergent-divergent element factor S, obtain the convergent-divergent element factor and need to obtain the input video source and finally show number of plies F at combination, F to ask for formula as follows:
F=[Z/C]; Wherein Z refers to total number of input video source, and C is the display unit number of level; [] expression adopts a method to obtain the value of F;
And then the acquiring method of convergent-divergent element factor S is: obtain respectively two convergent-divergent element factor S according to following two formula
x, S
y, choose the wherein less value of result, then with more than or equal to the smallest positive integral of this smaller value as the convergent-divergent element factor:
Wherein the resolution sizes of i road input video source is X
i* Y
i(i=1,2 ..., n), X
iBe the number of pixels on the input video source horizontal direction of i road, Y
iBe the number of pixels on the input video source vertical direction of i road, the resolution sizes of whole spliced display wall is A*B, and A is the number of pixels of horizontal direction, and B is the number of pixels of vertical direction;
And then the zoom factor S of each road vision signal
iAcquiring method be: if convergent-divergent element factor S is by S
xDetermine, then
If S is by S for the convergent-divergent element factor
yDetermine, then
S wherein
iIt is the zoom factor of i road vision signal.
The present invention compared with prior art has following advantage and beneficial effect:
1, the present invention is by adopting the video analysis control module that vision signal is carried out analyzing and processing, realized automatically accurately windowing, the large-screen splicing wall of plug and play shows, method of operating is simple, as long as insert vision signal, just can normally use, need not professional person's operation, and the construction and installation debugging is simple.
2, the present invention realizes by the method for Video processing, need not manual intervention therebetween, and intelligent degree is high, can be accurate to pixel scale, and is accurate more a lot of than manually-operated.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1, a kind of large-screen splicing wall display device, comprise video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit and video analysis control module, video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects by video bus successively, the video analysis control module by common signal cable respectively with the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects, the video analysis control module is connected with video acquisition unit by video bus, and video acquisition unit is used for gathering outside vision signal; Video display unit is used for the video information after processing to external world's output on the combination; The video analysis control module is used for analyzing priority, the background video signal of form, resolution sizes, the input channel of various video input signals, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority, at last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit.
A kind of large-screen splicing wall display packing based on said apparatus specifically may further comprise the steps:
(1) gathers vision signal by video acquisition unit, then by video bus digitized vision signal is sent to the video analysis control module, the video analysis control module is analyzed the form of various video input signals, resolution sizes, the priority of input channel, background video signal, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority; At last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit;
(2) control signal that transmits according to the video analysis control module of video routing unit to each road video display channel, then enters the video scaling unit by video bus with the vision signal interleaving route of various inputs;
(3) zoom factor of every road vision signal of sending according to the video analysis control module of video scaling unit carries out convergent-divergent to each road signal, then is sent to the video superimpose unit by video bus;
(4) the stack requirement that provides according to the video analysis control module of video superimpose unit superposes each road vision signal accordingly and splices, and exports to video display unit by video bus at last;
(5) video display unit shows each road signal in its corresponding screen area, the image of wherein all video source being finished through splicing after the convergent-divergent is placed on the central authorities of combination, guarantee central point during layout in the image range of the input channel of high priority, then the physical location of each unit on whole combination is sent to the video analysis control module.
The resolution of input video source is to determine by the row of analyzing vision signal, the time of field synchronization head, the size of pixel clock in the described step (1).
The priority of input channel is determined by the physics input port in the described step (1).
Judge with background signal it is to be put into video to show the lowermost layer of overlap-add region or toply determined by the physics selector switch in the described step (1).
The zoom factor that will obtain each road vision signal in the described step (3) need to be obtained first convergent-divergent element factor S, obtain the convergent-divergent element factor and need to obtain the input video source and finally show number of plies F at combination, F to ask for formula as follows:
F=[Z/C];
Wherein Z refers to total number of input video source, and C is the display unit number of level; [] expression adopts a method to obtain the value of F;
And then the acquiring method of convergent-divergent element factor S is: obtain respectively two convergent-divergent element factor S according to following two formula
x, S
y, choose the wherein less value of result, then with more than or equal to the smallest positive integral of this smaller value as the convergent-divergent element factor:
Wherein the resolution sizes of i road input video source is X
i* Y
i(i=1,2 ..., n), X
iBe the number of pixels on the input video source horizontal direction of i road, Y
iBe the number of pixels on the input video source vertical direction of i road, the resolution sizes of whole spliced display wall is A*B, and A is the number of pixels of horizontal direction, and B is the number of pixels of vertical direction;
And then the zoom factor S of each road vision signal
iAcquiring method be: if convergent-divergent element factor S is by S
xDetermine, then
If S is by S for the convergent-divergent element factor
yDetermine, then
S wherein
iIt is the zoom factor of i road vision signal.
Above-described embodiment is the better embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1. large-screen splicing wall display device, it is characterized in that, comprise video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit and video analysis control module, video acquisition unit, the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects by video bus successively, the video analysis control module by common signal cable respectively with the video routing unit, the video scaling unit, the video superimpose unit, video display unit connects, the video analysis control module is connected with video acquisition unit by video bus, and video acquisition unit is used for gathering outside vision signal; Video display unit is used for the video information after processing to external world's output on the combination; The video analysis control module is used for analyzing priority, the background video signal of form, resolution sizes, the input channel of various video input signals, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority, at last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit;
The control signal that the video routing unit transmits according to the video analysis control module to each road video display channel, then enters the video scaling unit by video bus with the vision signal interleaving route of various inputs;
The video scaling unit carries out convergent-divergent according to the zoom factor of every road vision signal that the video analysis control module sends to each road signal, then is sent to the video superimpose unit by video bus;
The stack requirement that the video superimpose unit provides according to the video analysis control module superposes each road vision signal accordingly and splices, and exports to video display unit by video bus at last;
Video display unit shows each road signal in its corresponding screen area, the image of wherein all video source being finished through splicing after the convergent-divergent is placed on the central authorities of combination, guarantee central point during layout in the image range of the input channel of high priority, then the physical location of each unit on whole combination is sent to the video analysis control module;
Wherein the zoom factor of every road vision signal is asked in the following way:
At first obtain the input video source and finally show number of plies F at combination, F to ask for formula as follows:
F=[Z/C];
Wherein Z refers to total number of input video source, and C is the display unit number of level; [] expression adopts a method to obtain the value of F;
Then ask for convergent-divergent element factor S: obtain respectively two convergent-divergent element factor S according to following two formula
x, S
y, choose the wherein less value of result, then with more than or equal to the smallest positive integral of this smaller value as the convergent-divergent element factor:
Wherein the resolution sizes of i road input video source is X
i* Y
i(i=1,2 ..., n), X
iBe the number of pixels on the input video source horizontal direction of i road, Y
iBe the number of pixels on the input video source vertical direction of i road, the resolution sizes of whole spliced display wall is A*B, and A is the number of pixels of horizontal direction, and B is the number of pixels of vertical direction;
And then the zoom factor S of each road vision signal
iAcquiring method be: if convergent-divergent element factor S is by S
xDetermine, then
If S is by S for the convergent-divergent element factor
yDetermine, then
S wherein
iIt is the zoom factor of i road vision signal.
2. a large-screen splicing wall display packing is characterized in that, specifically may further comprise the steps:
(1) gathers vision signal by video acquisition unit, then by video bus digitized vision signal is sent to the video analysis control module, the video analysis control module is analyzed the form of various video input signals, resolution sizes, the priority of input channel, background video signal, the size of whole combination, then the vision signal of input source is distributed to the zones of different of whole screen, judgement is to be put into video to show the lowermost layer of overlap-add region or top with background signal, the input video passage of high priority is put into center Screen, being put into around the screen of inferior priority; At last with signal respectively correspondence be sent to video routing unit, video scaling unit, video superimpose unit;
(2) control signal that transmits according to the video analysis control module of video routing unit to each road video display channel, then enters the video scaling unit by video bus with the vision signal interleaving route of various inputs;
(3) zoom factor of every road vision signal of sending according to the video analysis control module of video scaling unit carries out convergent-divergent to each road signal, then is sent to the video superimpose unit by video bus; Wherein the zoom factor of every road vision signal is asked in the following way:
At first obtain the input video source and finally show number of plies F at combination, F to ask for formula as follows:
F=[Z/C];
Wherein Z refers to total number of input video source, and C is the display unit number of level; [] expression adopts a method to obtain the value of F;
Then ask for convergent-divergent element factor S: obtain respectively two convergent-divergent element factor S according to following two formula
x, S
y, choose the wherein less value of result, then with more than or equal to the smallest positive integral of this smaller value as the convergent-divergent element factor:
Wherein the resolution sizes of i road input video source is X
i* Y
i(i=1,2 ..., n), X
iBe the number of pixels on the input video source horizontal direction of i road, Y
iBe the number of pixels on the input video source vertical direction of i road, the resolution sizes of whole spliced display wall is A*B, and A is the number of pixels of horizontal direction, and B is the number of pixels of vertical direction;
And then the zoom factor S of each road vision signal
iAcquiring method be: if convergent-divergent element factor S is by S
xDetermine, then
If S is by S for the convergent-divergent element factor
yDetermine, then
S wherein
iIt is the zoom factor of i road vision signal;
(4) the stack requirement that provides according to the video analysis control module of video superimpose unit superposes each road vision signal accordingly and splices, and exports to video display unit by video bus at last;
(5) video display unit shows each road signal in its corresponding screen area, the image of wherein all video source being finished through splicing after the convergent-divergent is placed on the central authorities of combination, guarantee central point during layout in the image range of the input channel of high priority, then the physical location of each unit on whole combination is sent to the video analysis control module.
3. large-screen splicing wall display packing according to claim 2 is characterized in that, the resolution of input video source is to determine by the row of analyzing vision signal, the time of field synchronization head, the size of pixel clock in the described step (1).
4. large-screen splicing wall display packing according to claim 2 is characterized in that, the priority of input channel is determined by the physics input port in the described step (1).
5. large-screen splicing wall display packing according to claim 2 is characterized in that, judges with background signal it is to be put into video to show the lowermost layer of overlap-add region or toply determined by the physics selector switch in the described step (1).
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Families Citing this family (15)
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CN102226943B (en) * | 2011-04-29 | 2013-04-17 | 杭州海康威视数字技术股份有限公司 | System and method for realizing screen splicing |
CN102542933A (en) * | 2012-01-16 | 2012-07-04 | 深圳市创维群欣安防科技有限公司 | Windowing controller based on large screen liquid crystal splicing display |
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CN104601935A (en) * | 2013-10-31 | 2015-05-06 | 深圳市朗驰欣创科技有限公司 | Frame splicing method and device |
CN104216671B (en) * | 2014-08-19 | 2017-03-22 | 宁波Gqy视讯股份有限公司 | Method for realizing synchronous cooperated display on multiple sets of spliced display screens |
CN104902192B (en) * | 2015-05-07 | 2019-02-05 | 深圳市创凯智能股份有限公司 | The transmission method and equipment of multiple signals |
CN105357471B (en) * | 2015-10-12 | 2020-02-14 | 浙江大华技术股份有限公司 | Video playing method and device |
CN105843578B (en) * | 2016-06-08 | 2019-01-29 | 广东威创视讯科技股份有限公司 | A kind of combination echo method, apparatus and system |
CN106354454B (en) * | 2016-08-11 | 2019-07-12 | 广东威创视讯科技股份有限公司 | Combination image display method and system |
CN107172368A (en) * | 2017-04-21 | 2017-09-15 | 西安诺瓦电子科技有限公司 | Many video source splicing display methods and processing unit and application, PLD |
CN110045942A (en) * | 2019-04-30 | 2019-07-23 | 河南泰德信息技术有限公司 | A kind of echo method and apparatus of distribution splicing device |
WO2021120088A1 (en) * | 2019-12-19 | 2021-06-24 | 威创集团股份有限公司 | Signal processing apparatus for splicing display, and signal processing method therefor |
WO2021207979A1 (en) * | 2020-04-15 | 2021-10-21 | 西安诺瓦星云科技股份有限公司 | Video processing device and system |
CN112738612B (en) * | 2020-12-28 | 2023-04-11 | 浙江大华技术股份有限公司 | Video processing method and system |
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CN101282426A (en) * | 2008-04-28 | 2008-10-08 | 四川长虹电器股份有限公司 | Video television wall equipment and setting method thereof |
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