CN104333739B - Spell wall system echo apparatus and method - Google Patents
Spell wall system echo apparatus and method Download PDFInfo
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Abstract
The invention discloses one kind to spell wall system echo apparatus and method, including：Echo data capture unit, for obtaining synchronization pulse and video data to be shown, first time scaling is carried out to data according to the number of the resolution ratio of spelling wall system and display unit, the positional information of wall system and synchronization pulse progress first time splicing are being spelled according to the data after spelling the line information of wall system, scaling for the first time, further coding；Echo data processing unit, for receive M coding after data and decoded, M pulse signal and M data to be echoed are obtained, according to the M pulse signal data to be echoed to M for the second time splice, and requires to carry out scaling, frame per second for the second time according to display and changes；Data display unit is echoed, the data after being changed for received frame rate are simultaneously shown.The present invention realizes the synchronization for spelling wall system echo, and the resolution ratio of wall system and the dynamic change of size are adaptively spelled during echo, it is easy to accomplish and cost is low.
Description
Technical field
The present invention relates to image communication technology field, and wall system echo apparatus and method are spelled more particularly to one kind.
Background technology
With the rapid growth of social informatization, information visuallization demand drastically expands, and high-end visual realization is difficult
The needs of client far can not be met by spending the information content that increasing, traditional separate unit display device is shown, especially for one
A little Surveillance center, command centre, control centres etc..Therefore spelling wall system turns into the indispensable basis in visualization field.Spell wall
System is typically mounted at special conference centre room or monitoring and scheduling room.For more large-scale system due to the angle of visibility of people
Degree relation, can not be concerned about the content of all displays on screen simultaneously, and such related personnel cannot be in time for showing on screen
The content shown carries out analysis judgement, integrated dispatch, decision commanding etc., can not solve produced problem as early as possible, is unsatisfactory for actual answer
Use demand.
The content of the invention
Based on the above situation, the present invention proposes a kind of wall system of spelling and echoes device, realizes the synchronization for spelling wall system echo
Change, meet visually perfect effect；The resolution ratio of wall system and the dynamic change of size, symbol are adaptively spelled during echo
Close practical application；It is simple in construction, cost is low.
To achieve these goals, the embodiment of technical solution of the present invention is：
One kind spells wall system echo device, including：
Data capture unit is echoed, for obtaining synchronization pulse and spelling wall system video data to be shown, and root
First time scaling processing is carried out to the video data according to the resolution ratio of the spelling wall system and the number of display unit, according to institute
The video data after the line information for spelling wall system, the processing of first time scaling is stated in the spelling positional information of wall system and described
Synchronization pulse carries out first time splicing to the data after the processing of first time scaling, to the number after first time splicing
Sent according to being encoded, and by the data after coding to echo data processing unit；
Data processing unit is echoed, for receiving the data after M codings and being decoded, M pulse is obtained and believes
Number and the to be echoed data of M, according to M pulse signal data progress second stitching portion to be echoed to the M
Reason, and the data after second of splicing are carried out at second of scaling according to the display resolution of echo data display unit
Reason, the data after being handled according to the refresh rate of the echo data display unit second of scaling carry out frame per second conversion, and will
Data after frame per second conversion are sent to the echo data display unit；It is described that the M are treated according to the M pulse signal
The data of echo, which carry out second of splicing, to be included being obtained and the M data to be echoed according to the M pulse signal
The sequential that is consistent of positional information, according to it is described when ordered pair described in M data to be echoed carry out second of splicing；
Data display unit is echoed, for receiving the data after the frame per second is changed and being shown.
For prior art problem, spell wall system the invention also provides one kind and echo method, pass through synchronization pulse
The synchronization of whole wall echo is realized, method is simple, reduces and spells wall system echo cost, is adapted to application.
The embodiment of technical solution of the present invention is：
One kind spells wall system echo method, comprises the following steps：
Obtain synchronization pulse and spell wall system video data to be shown, and according to the resolution ratio of the spelling wall system
First time scaling processing is carried out to the video data with the number of display unit, according to the line information of the spelling wall system,
Video data after the processing of first time scaling is in the positional information of the spelling wall system and the synchronization pulse to for the first time
Data after scaling processing carry out first time splicing, and the data after first time splicing are encoded；
Data after M coding are decoded, M pulse signal and M data to be echoed are obtained, according to the M
The individual pulse signal data to be echoed to the M carry out second of splicing, and according to the aobvious of echo data display unit
Show that resolution ratio carries out second of scaling processing to the data after second of splicing, according to the echo data display unit
Data after refresh rate is handled second of scaling carry out frame per second conversion；It is described that the M are treated according to the M pulse signal
The data of echo, which carry out second of splicing, to be included being obtained and the M data to be echoed according to the M pulse signal
The sequential that is consistent of positional information, according to it is described when ordered pair described in M data to be echoed carry out second of splicing；
Data after being changed to the frame per second are shown.
Compared with prior art, beneficial effects of the present invention are：The present invention spells wall system echo apparatus and method, realizes and spells
The synchronization of wall system echo, meets visually perfect effect；During echo adaptively spell wall system resolution ratio and
The dynamic change of size, meets reality；It is easily achieved and cost is low, staff can be divided for the content of echo in time
Judgement, integrated dispatch, decision commanding are analysed, is adapted to application.
Brief description of the drawings
Fig. 1 is to spell wall system in one embodiment to echo apparatus structure schematic diagram；
Fig. 2 is to echo apparatus structure schematic diagram based on spelling wall system in one specific example of Fig. 1 shown devices；
Fig. 3 is that Fig. 2 spells the structural representation that wall system echoes echo data capture unit in device；
Fig. 4 is the schematic diagram that 3x4 spells after the processing of wall system first time scaling in one embodiment；
Fig. 5 is that Fig. 2 spells the structural representation that wall system echoes echo data processing unit in device；
Fig. 6 is the schematic diagram of the positional information that 3x4 spells wall system data to be echoed in one embodiment；
Fig. 7 is to spell wall system in one embodiment to echo method flow diagram.
Embodiment
For the objects, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is described in further detail.It should be appreciated that embodiment described herein is only to explain the present invention,
Do not limit protection scope of the present invention.
Wall system echo device is spelled in one embodiment, as shown in figure 1, including：
Data capture unit is echoed, for obtaining synchronization pulse and spelling wall system video data to be shown, and root
First time scaling processing is carried out to the video data according to the resolution ratio of the spelling wall system and the number of display unit, according to institute
The video data after the line information for spelling wall system, the processing of first time scaling is stated in the spelling positional information of wall system and described
Synchronization pulse carries out first time splicing to the data after the processing of first time scaling, to the number after first time splicing
Sent according to being encoded, and by the data after coding to echo data processing unit；
Data processing unit is echoed, for receiving the data after M codings and being decoded, M pulse is obtained and believes
Number and the to be echoed data of M, according to M pulse signal data progress second stitching portion to be echoed to the M
Reason, and the data after second of splicing are carried out at second of scaling according to the display resolution of echo data display unit
Reason, the data after being handled according to the refresh rate of the echo data display unit second of scaling carry out frame per second conversion, and will
Data after frame per second conversion are sent to the echo data display unit；
Data display unit is echoed, for receiving the data after the frame per second is changed and being shown.
Obtain synchronization pulse as shown in figure 1, echoing data capture unit first and spell wall system video to be shown
Data, and first time scaling processing is carried out to above-mentioned video data according to the resolution ratio of spelling wall system and the number of display unit,
The positional information of wall system and above-mentioned same is being spelled according to the video data after the line information of wall system, the processing of first time scaling is spelled
Step pulse signal carries out first time splicing to the data after the processing of first time scaling, to the data after first time splicing
Encoded；Then echo data processing unit to decode the data after M above-mentioned codings, decoding obtains M pulse letter
Number and the to be echoed data of M, according to M pulse signal data progress second splicing to be echoed to M, and according to
Echo data display unit display resolution to after second of splicing data carry out second of scaling processing, according to return
Data after the refresh rate of aobvious data display unit is handled second of scaling carry out frame per second conversion；It is single finally to echo data display
Data after member is changed to above-mentioned frame per second are shown.
It is evidenced from the above discussion that the present invention spells wall system echo device, the synchronization for spelling wall system echo is realized, is met
Visually perfect effect；The resolution ratio of wall system and the dynamic change of size are adaptively spelled during echo, meets actual answer
With.
As one embodiment, the echo data capture unit is gone here and there to the data after the first time splicing
Rowization encodes, and is sent the data serialized after encoding to the echo data processing unit by high-speed serial bus；
Signal transmission is carried out by a high-speed serial bus after serialization coding is carried out, it is simple, quick, meet reality
Border.
As one embodiment, the echo data processing unit obtains treating with the M according to the M pulse signal
The sequential that the positional information of the data of echo is consistent, according to it is described when ordered pair described in the to be echoed data of M carry out second
Splicing, the splicing of M data to be echoed accurately is quickly accomplished, facilitates subsequent treatment, be adapted to application.
As one embodiment, the echo data display unit includes echo data and module and/or echo is locally displayed
Data network coding module；
Module is locally displayed in the echo data, and local output display is carried out for the data after being changed to the frame per second；
The echo data network coding module, network code is carried out for the data after being changed to the frame per second, and will
Data after network code are sent to remote terminal output display；
There are above-mentioned echo data module is locally displayed and/or echo data network coding module for device, at monitoring personnel
Analysis judgement, integrated dispatch, decision commanding can be carried out to the content of echo, realize people in the near-end or distal end for spelling wall system
The design of property.
As one embodiment, the frequency of the synchronization pulse is identical with the refresh rate of the spelling wall system, ensures
The synchronization of wall system display unit display image is spelled, while realizes the synchronization for spelling wall system echo data.
In order to more fully understand the present apparatus, a present invention detailed below spells the application of wall system echo device in fact
Example, the application example are set using FPGA (Field-Programmable Gate Array, field programmable gate array) hardware
Meter technology is realized.
As shown in Fig. 2 the application example can include：
Clock-pulse generator, the consistent synchronization pulse of refresh rate for producing with spelling wall system, and this is same
Step pulse signal is transferred to signal processing unit, and signal processing unit ensures that spelling wall system shows by monitoring the synchronization pulse
Show the synchronization of unit display image, while the synchronization pulse also needs to be sent to echo data capture unit, for synchronization
Echo data；
Video signal collective unit, computer display card or DVD (Digital Versatile are come from for gathering
Disc, digital versatile disc) output such as/VCD (Video Compact Disc, video and audio CD disc) player VIDEO (depending on
Frequently signal), is converted into the data signal of RGB888 forms, and reconvert carries out coding packing to unified clock zone；
Scheduling unit, it is defeated for receiving synchronization pulse caused by clock-pulse generator and video signal collective unit
The vision signal gone out, and cross scheduling processing is carried out to above-mentioned synchronization pulse and vision signal respectively, to adapt at signal
Manage unit across screen, superposition windowing function；
M (M=8) individual signal processing unit, for the synchronization pulse transmitted according to clock-pulse generator and spell wall
The display of system requires to enter the signal carried out after cross scheduling processing by scheduling unit of video signal collective unit output
Row unpacking, overlap-add procedure is scaled, to adapt to spell the display of wall system, while ensure that synchronization when windowing is shielded is occurring in same video
It has been shown that, a signal processing unit support that 4 road DVI (Digital Visual Interface, digital visual interface) data are defeated
Go out；
M echo data capture unit, as shown in figure 3, the synchronous arteries and veins sent for receiving front-end clock-pulse generator
The multichannel DVI data of signal and M signal processing unit output are rushed, each echo data capture unit is entered to 4 road DVI data
Row scaling, splicing, coded treatment, according to spelling wall system in 4 Zoom modules one of each echo data capture unit
Resolution ratio and the number of display unit carry out first time scaling processing, such as the spelling wall system that the present apparatus is supported to 4 road DVI data
The number of most display units is 32, and the pantograph ratio row of scaling processing for the first time are defined as level 1/4 and vertical 1/4, then 4
Cached in individual cache module, according to line information, the processing of first time scaling for spelling wall system in frame synchronization regeneration module
Data afterwards are spelling the positional information of wall system and above-mentioned synchronization pulse to 4 data progress after the processing of first time scaling
First time splicing, such as the 3x4 spelling wall systems shown in Fig. 4, it is assumed that W1, W2, W3, W4 are the number after the processing of first time scaling
According to, then line information, the W1 according to the spelling wall system, W2, W3 are needed, W4 data are spelling the positional information of wall system and reception
The synchronization pulse that sends of front end clock-pulse generator carry out first time splicing, ensure echo data at capture end
It can form and spell wall system and arrange consistent image, after first time splicing is completed, to for the first time in coding module
Data after splicing carry out serialization coding, and are transmitted by a high-speed serial bus；M echo data capture unit
The scaling to M*4 roads DVI data, splicing, coded treatment are completed, the data after processing can meet that a high-speed serial bus passes
Defeated demand；
High-speed serial bus, for respectively sending the data after M echo data capture unit processing to echo data
Processing unit；
Data processing unit is echoed, as shown in figure 5, for the number after being encoded in decoder module to above-mentioned M serialization
According to being decoded, decoding obtains M pulse signal and M data to be echoed, it is contemplated that the delay of transmission link, echoes data
The data that processing unit receives can not directly be spliced, memory cell FIFO (the First In First inside FPGA uses
Out, First Input First Output) the row cachings of data is carried out, select leading portion to decode to obtain M in lock-out pulse selecting module is received individual
Any one stable pulse signal in pulse signal is prolonged as lock-out pulse by lock-out pulse delay process module
When processing after be transferred to frame synchronization regeneration module, after frame synchronization regeneration module is according to lock-out pulse delay process module delay process
The sequential being consistent with the positional information of above-mentioned M data to be echoed is obtained, according to above-mentioned M numbers to be echoed of ordered pair when this
According to second of splicing, such as the 3x4 joined screen systems shown in Fig. 6 is carried out, 1,2,3, the M positional information in wall is spelled is echoed
As illustrated, for the echo citing of Unit 1：Assuming that the resolution sizes of the single echo unit of transmission are (x0, y0), then whole
The resolution sizes of individual 3x4 echo units are (x0*4, y0*3), the unit of echo 1 skew at position (0,0) place in echo system
Size (x0, y0), then sequential caused by frame synchronization regeneration module needs to produce effective letter of (x0, y0) length at skew herein
Number, second of splicing is carried out, because the position of each echo unit does not independently have overlapping appearance, so frame synchronization regenerates
The data to be echoed of resume module have been a secondary complete whole wall data, then according to echo data in Zoom module two
The display resolution of display unit carries out second of scaling processing to the data after second of splicing, in frame per second modular converter
Data after the middle refresh rate according to echo data display unit is handled second of scaling carry out frame per second conversion；
Data display unit is echoed, including module and echo data network coding module is locally displayed in echo data；Echo
Module is locally displayed in data, and local output display is carried out for carrying out the data after frame per second conversion to echo data processing unit；
Data network coding module is echoed, network code is carried out for carrying out the data after frame per second conversion to echo data processing unit,
And the data after network code are sent to remote terminal output display.
This application example wirelessly spells wall system echo device and realizes that the whole wall echo of wall system is spelled on (8*4) 32 tunnel, echoes
The resolution ratio of wall system and the dynamic change of size are adaptively spelled in journey, realizes automation mechanized operation, it is not necessary to artificially done
In advance；Reach the synchronization for spelling wall system echo, meet visually perfect effect；There are device echo data mould is locally displayed
No matter block, echo data network coding module, monitoring personnel can be in echos in the near-end or distal end for spelling wall system
Appearance carries out analysis judgement, integrated dispatch, decision commanding, realizes the design of hommization；It is simple in construction, reduce cost.
Wall system echo method is spelled in one embodiment, as shown in fig. 7, comprises following steps：
Step S701：Obtain synchronization pulse and spell wall system video data to be shown, and according to the spelling wall system
The resolution ratio of system and the number of display unit carry out first time scaling processing to the video data, according to the spelling wall system
Positional information and the synchronization pulse of the video data in the spelling wall system after line information, the processing of first time scaling
First time splicing is carried out to the data after the processing of first time scaling, the data after first time splicing are encoded；
Step S702：Data after M coding are decoded, obtain M pulse signal and M data to be echoed,
Second of splicing is carried out according to the M pulse signal data to be echoed to the M, and is shown according to echo data
The display resolution of unit carries out second of scaling processing to the data after second of splicing, is shown according to the echo data
Show that the refresh rate of unit carries out frame per second conversion to the data after second of scaling processing；
Step S703：Data after being changed to the frame per second are shown.
It is evidenced from the above discussion that the present invention spells wall system echo method, realize what whole wall echoed by synchronization pulse
Synchronize, method is simple, reduces and spells wall system echo cost, is adapted to application.
As one embodiment, the step of data after the splicing to first time encode, includes：
Serialization coding is carried out to the data after the first time splicing；
Signal transmission is carried out by a high-speed serial bus after serialization coding is carried out, it is simple, quick, meet reality
Border.
As one embodiment, carry out second according to the M pulse signal data to be echoed to the M and splice
The step of processing, includes：
The sequential being consistent with the positional information of the M data to be echoed, root are obtained according to the M pulse signal
According to it is described when data to be echoed M described in ordered pair carry out second of splicing, be accurately quickly accomplished M numbers to be echoed
According to splicing, facilitate subsequent treatment, be adapted to application.
As one embodiment, the step of data after being changed to the frame per second are shown, includes：
Data after being changed to the frame per second carry out local output display；
And/or
Data after being changed to the frame per second carry out network code, and the data after network code are sent to remote terminal
Output display；
Monitoring personnel is in the near-end for spelling wall system or distal end can carry out analysis judgement, comprehensive tune to the content of echo
Degree, decision commanding, realize the design of hommization.
As one embodiment, the frequency of the synchronization pulse is identical with the refresh rate of the spelling wall system, ensures
The synchronization of display image and the synchronization of echo data.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. one kind spells wall system echo device, it is characterised in that including：
Data capture unit is echoed, for obtaining synchronization pulse and spelling wall system video data to be shown, and according to institute
State and spell the resolution ratio of wall system and the number of display unit to video data progress first time scaling processing, according to the spelling
Positional information and the synchronization of the video data in the spelling wall system after the line information of wall system, the processing of first time scaling
Pulse signal carries out first time splicing to the data after the processing of first time scaling, and the data after first time splicing are entered
Row coding, and the data after coding are sent to echo data processing unit；
Data processing unit is echoed, for receiving the data after M codings and being decoded, obtains M pulse signal and M
Individual data to be echoed, second of splicing is carried out according to the M pulse signal data to be echoed to the M, and
Second of scaling processing, root are carried out to the data after second of splicing according to the display resolution of echo data display unit
Data after being handled according to the refresh rate of the echo data display unit second of scaling carry out frame per second conversion, and frame per second is turned
Data after changing are sent to the echo data display unit；It is described to be echoed to the M according to the M pulse signal
Data, which carry out second of splicing, to be included obtaining the position with the M data to be echoed according to the M pulse signal
The sequential that information is consistent, according to it is described when ordered pair described in the to be echoed data of M carry out second of splicing；
Data display unit is echoed, for receiving the data after the frame per second is changed and being shown.
2. spelling wall system echo device according to claim 1, it is characterised in that the echo data capture unit is to institute
State the data after first time splicing and carry out serialization coding, and the data after encoding will be serialized by high-speed serial bus
Send to the echo data processing unit.
3. spelling wall system echo device according to claim 1, it is characterised in that the echo data display unit includes
Module and/or echo data network coding module is locally displayed in echo data；
Module is locally displayed in the echo data, and local output display is carried out for the data after being changed to the frame per second；
The echo data network coding module, network code is carried out for the data after being changed to the frame per second, and by network
Data after coding are sent to remote terminal output display.
4. it is according to claim 1 spelling wall system echo device, it is characterised in that the frequency of the synchronization pulse with
The refresh rate of the spelling wall system is identical.
5. one kind spells wall system echo method, it is characterised in that comprises the following steps：
The acquisition synchronization pulse video data to be shown with wall system is spelled, and according to the resolution ratio for spelling wall system and show
Show that the number of unit carries out first time scaling processing to the video data, according to the line information of the spelling wall system, first
Video data after secondary scaling processing scales in the positional information of the spelling wall system and the synchronization pulse to first time
Data after processing carry out first time splicing, and the data after first time splicing are encoded；
Data after M coding are decoded, M pulse signal and M data to be echoed are obtained, according to the M arteries and veins
Rush the signal data to be echoed to the M and carry out second of splicing, and according to the display point of echo data display unit
Resolution carries out second of scaling processing to the data after second of splicing, according to the refreshing of the echo data display unit
Data after rate is handled second of scaling carry out frame per second conversion；It is described that the M are waited to echo according to the M pulse signal
Data carry out second splicing and include obtaining the position with the individual data to be echoed of the M according to the M pulse signal
The sequential that confidence manner of breathing meets, according to it is described when ordered pair described in the to be echoed data of M carry out second of splicing；
Data after being changed to the frame per second are shown.
6. spelling wall system echo method according to claim 5, it is characterised in that after the splicing to first time
The step of data are encoded includes：
Serialization coding is carried out to the data after the first time splicing.
7. spelling wall system echo method according to claim 5, it is characterised in that the data after being changed to the frame per second are entered
The step of row display, includes：
Data after being changed to the frame per second carry out local output display；
And/or
Data after being changed to the frame per second carry out network code, and the data after network code are sent to remote terminal and exported
Display.
8. it is according to claim 5 spelling wall system echo method, it is characterised in that the frequency of the synchronization pulse with
The refresh rate of the spelling wall system is identical.
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| CN106791488B (en) * | 2016-12-28 | 2021-01-29 | 浙江宇视科技有限公司 | Synchronous splicing display method and device |
| CN109905632A (en) * | 2017-12-07 | 2019-06-18 | 宿州安科迪智能技术有限公司 | A kind of array distributed display system of ultra high-definition and its display methods |
| CN110581962B (en) * | 2018-06-07 | 2021-03-19 | 杭州海康威视数字技术股份有限公司 | Television wall image redisplay method, service board and distributed television wall system |
| CN110896477B (en) * | 2018-09-13 | 2022-04-05 | 杭州海康威视数字技术股份有限公司 | Video coding method, device, coding equipment and storage medium |
| CN111327873B (en) * | 2019-07-29 | 2021-09-21 | 杭州海康威视系统技术有限公司 | Scene layout adjusting method and device, electronic equipment and storage medium |
| CN111108470B (en) * | 2019-12-24 | 2021-12-07 | 威创集团股份有限公司 | Whole wall redisplay method and device for distributed splicing system and computer equipment |
| CN113286198A (en) * | 2020-02-19 | 2021-08-20 | 浙江宇视科技有限公司 | Live playback method, device, equipment and medium |
| CN111479166A (en) * | 2020-04-21 | 2020-07-31 | 成都国翼电子技术有限公司 | Multi-pointer memory access method and video frame rate conversion device |
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| CN203734742U (en) * | 2014-03-04 | 2014-07-23 | 上海晨驭信息科技有限公司 | Echoing system of video splicing wall |
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| CN103686170A (en) * | 2013-12-23 | 2014-03-26 | 广东威创视讯科技股份有限公司 | Short-distance multi-channel video transmission method and device |
| CN203734742U (en) * | 2014-03-04 | 2014-07-23 | 上海晨驭信息科技有限公司 | Echoing system of video splicing wall |
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