CN203734770U - Network-based centralized-distributed splicing control display system - Google Patents
Network-based centralized-distributed splicing control display system Download PDFInfo
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- CN203734770U CN203734770U CN201420094972.7U CN201420094972U CN203734770U CN 203734770 U CN203734770 U CN 203734770U CN 201420094972 U CN201420094972 U CN 201420094972U CN 203734770 U CN203734770 U CN 203734770U
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Abstract
The utility model discloses a network-based centralized-distributed splicing control display system. The system comprises an input device, at least one network switching and routing unit, at least one main control unit and an output device. The at least one main control unit and the at least one network switching and routing unit are connected. The network switching and routing unit is connected with a plurality of video acquisition and preprocessing units through an input video packet transmission interface unit in the input device, and is connected with a plurality of first video splicing post-processing units through an output video packet transmission unit in the output device to form a star-shaped or chain-shaped mesh structure. By adopting the system, the cost and space problems of a distributed mode can be effectively solved, and a series of problems of a centralized mode such as short transmission distance, inflexible installation, difficult heat dissipation, large fan noise, window opening limit, waste of upfront investment for capacity expansion, and the like can be solved. Products developed based on the method have high cost performance and excellent backward compatibility.
Description
Technical field
The utility model relates to image mosaic controller, more specifically says a kind of splicing system of concentrating with the distributed New Image combining that adopts.
Background technology
Large screen splicing display system is more and more extensive in the utilization in the fields such as point duty, weather monitoring, television presentation, communication, military affairs, security protection.Current splicing control is on the market varied, but is summed up nothing more than several below: one, based on PC framework splicing controller, this splicing controller power consumption is very high, and image shows unstable, and cost is high; Two, based on backboard switching technology, utilize DSP and FPGA to carry out the splicing controller of image processing, the controller of this mode, in selected suitable scale, there is cost advantage, but in engineering, lack flexibility, can only place near mosaic screen, if when mosaic screen quantity is many, due to the restriction of vision cable (DVI, HDMI etc.) transmission length, often there is wild effect; Heating is concentrated in addition, must additionally add multiple fans and dispel the heat, if do not select carrier-class fan general service life also with regard to 3 to 4 years, if when user wishes to increase screen dilatation, essential complete machine is changed, up-front investment can not get protection; Also have due to the restriction of core bus exchange capacity, single screen window and multicast on have certain restriction; Three, the complete distributed splicing controller based on Ethernet exchanging, sort controller can solve a lot of engineering problems, stable performance brilliance, advantage is very obvious, but due to high cost, in the past few years can not get effective popularization always.And the utility model has been concentrated the advantage of above several types, solve again the problem of cost.
Patent searching system, does not also find out and concentrates and the distributed splicing controller combining, and comparatively approaches:
Patent CN 101807389 A, this is a kind of splicing controller based on PC framework, also be above mentioned the first framework, the splicing control system overall power of this framework is the power consumption above based on 10 times of hardware structure (ASIC, FPGA etc.), due to the non-real time operating system adopting, there is certain problem in clock synchronous, tearing and unsettled problem of picture easily occurs.
Patent CN 103020894 A are typical case's centralized splicing controllers based on backboard exchange, and its structure generally comprises a switching backplane, multiple service processing board, multiple interface card, power supply, fan, master control borad etc.This structure is not formula Network Based, and engineering construction is subject to the restriction of vision cable transmission length, can only place near large-size screen monitors, and because heat is too concentrated, must add fan, has reduced the stability of system.
Patent CN 1026100869 A and patent CN203151670 U, its patent essence is one, be the traditional distributed splicing controller of typical case, an input node is supported an input source, and an output node is supported a single screen, this distributed director framework is simple, reliable and stable, low in energy consumption, but when Specific construction, because netting twine is more and distribute, difficulty of construction is low unlike centralized architecture, and also having a maximum problem is cost Gao Qi; And echo screen is only supported single screen, this is in the time that large-size screen monitors number is nearly more than 64, and screen epigraph does not see Chu substantially.
Summary of the invention
The utility model has retained the advantage of above splicer, has overcome above-mentioned put forward defect, proposes a kind of novel network collection fraction splicing and controls display system.
The network collection fraction splicing of one that the utility model provides is controlled display system and is comprised input unit, network exchange routing unit, output device and main control unit; Described input unit, network exchange routing unit are connected successively with output device, and described main control unit is connected with network exchange routing unit; Described input unit comprises video input interface unit, several video acquisitions and the preliminary treatment set and the input video bag coffret unit that connect successively; Described output device comprises the large screen splicing screen of the output video packet transmission unit, several the first video-splicing reprocessing set, video display signal coffret unit and the a*b that connect successively, and wherein a, b are more than or equal to 1 positive integer; Described several video acquisitions and preliminary treatment set are combined by several video acquisitions and pretreatment unit; Described several the first video-splicing reprocessing set are combined by several the first video-splicing post-processing units;
Described network exchange routing unit connects several video acquisitions and preliminary treatment set by the input video bag coffret unit in input unit; Be connected with several the first video-splicing reprocessing set by the output video packet transmission unit in output device simultaneously, form stellate reticulum or chain net structure.
In said system, cluster processing is carried out in several video acquisitions and preliminary treatment set and several the first video-splicing reprocessing set, forms cloud separately.
In said system, described network exchange routing unit is more than one; Series connection mutually between network exchange routing unit.
In said system, also comprise echo network element, described echo network element comprises the echo mosaic screen of the echo transmission unit, several the second video-splicing post-processing units, echo coffret unit and the c*d that connect successively, wherein c, d are more than or equal to 1 positive integer, several the second video-splicing post-processing units in described echo network element are combined to form several the second video-splicing reprocessing set mutually, then are connected to form star or recurrent network structure by echo transmission unit and network exchange routing unit.
In said system, described video acquisition and pretreatment unit and the first video-splicing post-processing unit are single-pass process unit or flush bonding processor.
In said system, described video acquisition and pretreatment unit and the first video-splicing post-processing unit are selected from DSP, FPGA flush bonding processor or their combination.
In said system, described the second video-splicing post-processing unit is single-pass process unit or flush bonding processor.
In said system, described the second video-splicing post-processing unit is selected from DSP, FPGA flush bonding processor or their combination.
In said system, video acquisition and preliminary treatment set and the first video-splicing reprocessing set are substituted with cloud processing server.
The beneficial effects of the utility model are: this system can be concentrated the advantage of distributed splicing controller and centralized splicing controller, effectively solve distributed cost and space problem, can solve again localized transmission distance short, install that ineffective activity, heat radiation difficulty, fan noise are large, the series of problems such as up-front investment waste while windowing restriction, dilatation, make that the product cost developed based on the method is very high, backwards compatibility is splendid.
Brief description of the drawings
Fig. 1 is the topological diagram of the utility model whole system.
Fig. 2 is this bright network model explanation.
Fig. 3 is the schematic flow sheet of the utility model echo.
Number in the figure: 101-video input interface unit; 201-video acquisition and pretreatment unit; 301-input video bag coffret unit; 401-network exchange routing unit; 501-output video packet transmission unit; 601-the first video-splicing post-processing unit; 701-video display signal coffret unit; The large screen splicing screen of 801-a*b; 901-main control unit; 1001-echo transmission unit; 1002-the second video-splicing post-processing unit; 1003-echo coffret unit; The echo mosaic screen of 1004-c*d.
Embodiment
The topological diagram of the utility model whole system as shown in Figure 1, wherein, system comprises following network element: video input interface unit 101, video acquisition and pretreatment unit 201, input video bag coffret unit 301, network exchange routing unit 401, output video packet transmission unit 501, the first video-splicing post-processing unit 601, video display signal coffret unit 701, the large screen splicing screen 801 of a*b, main control unit 901, echo transmission unit 1001, the second video-splicing post-processing unit 1002, the echo mosaic screen 1004 of echo coffret unit 1003 and c*d.Several video acquisitions and pretreatment unit 201 are combined to form several video acquisitions and preliminary treatment set; Several the first video-splicing post-processing units 601 form several the first video-splicing reprocessing set; Several the second video-splicing post-processing units 1002 form several the second video-splicing reprocessing set; These network elements are by one or more network exchange routing unit 401 interconnected formation stars or recurrent network structure.
Video input interface unit 101 can be DVI, HDMI, VGA, SDI, HD_SDI, CVBS or Ethernet interface RJ45 etc.; In this unit, analog video signal is carried out to AD conversion, or the signals such as DVI, HDMI, SDI are decoded and the processing of signal consolidation form, input video synchronization process, video compression decode (comprise and the lossy compression method such as be not limited only to H.264/H.265, also comprise Lossless Compression etc.).
Video acquisition and pretreatment unit 201 cut convergent-divergent processing according to the configuration signal of master control to video; Further illustrate, video acquisition and pretreatment unit 201 have several, several such unit processing of composition " cloud "; This is an outstanding place that is different from exemplary distribution formula system.Video acquisition and pretreatment unit 201 are single-pass process unit or flush bonding processor, with DSP, FPGA, flush bonding processor or their combination.
Input video bag coffret unit 301, for the vision signal that preliminary treatment finishes compress to processings (comprise and the lossy compression method such as be not limited only to H.264/H.265, also comprise Lossless Compression etc.), divide into groups to seal and fill and deliver to network exchange routing unit 401 by network cable; Network cable can be Ethernet, optical fiber, wireless network (WIFI, 3G, 4G etc.), the group number of input video bag coffret unit 301 can be corresponding one by one with video acquisition and pretreatment unit 201, can be not corresponding yet, the transmission group number of input video bag coffret unit 301 is less than or equal to the combined number of video acquisition and pretreatment unit 201.
Network exchange routing unit 401 can be the PSEs such as Ethernet switch (comprising two layers or three-tier switch), router, this network element can be the combination of one or more network exchange routing units 401, further illustrate, this can form star, also can first form star, form chain, Fig. 2 is only signal again, and actual annexation is not limited to shown in Fig. 2.
Output video packet transmission unit 501 can be Ethernet or optical networking.
The first video-splicing post-processing unit 601 is resolved the grouping bag on transmission network, generate required frame of video, then splice and convergent-divergent according to control signal, further illustrating this unit is several unit combination, aggregate into an independent processing " cloud ", this is also the distinguishing feature that is different from traditional distributed.The first video-splicing post-processing unit 601 is single-pass process unit or flush bonding processor, can be DSP, FPGA, flush bonding processor or their combination.
Video display signal coffret unit 701, carries out format conversion by the splicing signal of generation and produces required interface signal as DVI, HDMI, SDI, VGA etc.
The large screen splicing screen 801 of a*b is that (a is a
positive integer) (b is * b
positive integer) mosaic screen; Can be liquid crystal-spliced screen, PDP display or LED mosaic screen etc.
Main control unit 901 is the network elements as master control that are connected on network exchange routing unit 401, in order to carry out the configuration management (wireless) of various utilization scenes, in the utility model, the configuration of all input, output and echo is all to be configured by main control unit 901.
The vision signal of output display is carried out corresponding convergent-divergent by echo transmission unit 1001, and that is then correlated with seals dress, then delivers on the second video-splicing post-processing unit 1002; Transmission network can be Ethernet or optical networking or wireless network (WIFI, 3G, 4G etc.).
The second video-splicing post-processing unit 1002, the vision signal of sending here is spliced in the echo control information sending according to master control, then generating VGA, HDMI or DVI signal delivers on echo screen, the same function of supporting splicing of echo screen, especially in the time that mosaic screen quantity is a lot, echo screen as just a screen, see very unintelligiblely.The second video-splicing post-processing unit 1002 is single-pass process unit or flush bonding processor, can DSP, FPGA, flush bonding processor or their combination.
Echo coffret unit 1003 can be Ethernet, optical fiber or wireless (WIFI, 3G, 4G etc.);
The echo mosaic screen 1004 of c*d is that (c is c
positive integer) (d is * d
positive integer) individual echo mosaic screen, in the time that normal display splicing screen number is a lot, also need multiple screens to carry out tiled display.
In the utility model, use the utility model system splice to control the flow process of demonstration as described below:
1, vision signal accesses native system by video input interface unit 101; Access signal can be DVI, HDMI, Ethernet or simulation CVBS etc., the signal of access changes by corresponding AD or interface decoding is normalized into unified video stream signal, if compressed signal also needs the decompression of being correlated with, this video stream packets contains rgb format but is not limited to RGB pattern, can also be YUV etc., then deliver to video acquisition and pretreatment unit 201;
2, vision signal is in video acquisition and pretreatment unit 201, carry out corresponding cutting and convergent-divergent processing according to the configuration signal of master control, further illustrate the combination that this unit can be multiple little video processing units, this assembled unit forms an independently large processing aggregate, then pretreated vision signal is delivered in input video bag coffret unit 301;
3, input video bag coffret unit 301, the vision signal that preliminary treatment finishes being carried out to compression processing (comprise and the lossy compression method such as be not limited only to H.264/H.265, also comprise Lossless Compression etc.), the grouping of the unit of being cut into seals dress (also can not compress and directly divide into groups to seal dress) and delivers to network exchange routing unit 401 by network cable;
4, network exchange routing unit 401 can be the PSEs such as Ethernet switch (comprising two layers or three-tier switch), router, and this network element can be the combination of one or more network exchange routing units 401;
5, vision signal is after network exchange routing unit 401, send into the first video-splicing post-processing unit 601 by output video packet transmission unit 501, in the first video-splicing post-processing unit 601, if compressed signal, so first, vision signal is decompressed with the unit of being cut into, change unified RGB or extended formatting into, then carry out the splicing processing of corresponding convergent-divergent according to the configuration signal of master control, further illustrate the combination that this unit can be one or more little processing units, aggregate into an independent entity, this is also the distinguishing feature that is different from traditional distributed, then the vision signal of having spliced is delivered to video display signal coffret unit 701,
6, in video display signal coffret unit 701, vision signal is carried out to the conversion of corresponding interface format, generate corresponding interface signal as DVI, HDMI, VGA etc.;
7, the large screen splicing of a*b screen 801 signals that above-mentioned video display signal coffret unit 701 is sent here directly show.
Further, carry out the concrete implementing procedure (as shown in Figure 3) of echo as follows:
1, in video display signal coffret unit 701, by the signal of output directly by output video packet transmission unit 501(network) deliver to network exchange routing unit 401;
2, network exchange routing unit 401 is delivered to corresponding echo signal the second video-splicing post-processing unit 1002 of echo processing by echo transmission unit 1001, in this element, carry out decompression and the video format conversion of video, and carry out corresponding synchronous and splicing; Then deliver in echo coffret unit 1003;
3, in echo coffret unit 1003, carry out corresponding interface format conversion, then deliver on the echo mosaic screen 1004 of c*d and carry out echo, further illustrate this echo implementation method and also can support mosaic screen.
Claims (8)
1. a display system is controlled in network collection fraction splicing, it is characterized in that: this system comprises input unit, network exchange routing unit, output device and main control unit; Described input unit, network exchange routing unit are connected successively with output device, and described main control unit is connected with network exchange routing unit; Described input unit comprises video input interface unit, several video acquisitions and the preliminary treatment set and the input video bag coffret unit that connect successively; Described output device comprises the large screen splicing screen of the output video packet transmission unit, several the first video-splicing reprocessing set, video display signal coffret unit and the a*b that connect successively, and wherein a, b are more than or equal to 1 positive integer; Described several video acquisitions and preliminary treatment set are combined by several video acquisitions and pretreatment unit; Described several the first video-splicing reprocessing set are combined by several the first video-splicing post-processing units;
Described network exchange routing unit connects several video acquisitions and preliminary treatment set by the input video bag coffret unit in input unit; Be connected with several the first video-splicing reprocessing set by the output video packet transmission unit in output device simultaneously, form stellate reticulum or chain net structure.
2. display system is controlled in network collection fraction splicing according to claim 1, it is characterized in that: described network exchange routing unit is more than one; Series connection mutually between network exchange routing unit.
3. display system is controlled in network collection fraction splicing according to claim 1 and 2, it is characterized in that: also comprise echo network element, described echo network element comprises the echo transmission unit connecting successively, several the second video-splicing post-processing units, the echo mosaic screen of echo coffret unit and c*d, wherein c, d is more than or equal to 1 positive integer, several the second video-splicing post-processing units in described echo network element are combined to form several the second video-splicing reprocessing set mutually, be connected to form star or recurrent network structure by echo transmission unit and network exchange routing unit again.
4. display system is controlled in network collection fraction splicing according to claim 1, it is characterized in that: described video acquisition and pretreatment unit and the first video-splicing post-processing unit are single-pass process unit or flush bonding processor.
5. control display system according to the network collection fraction splicing described in claim 1 or 4, it is characterized in that: described video acquisition and pretreatment unit and the first video-splicing post-processing unit are selected from DSP, FPGA flush bonding processor or their combination.
6. display system is controlled in network collection fraction splicing according to claim 3, it is characterized in that: described the second video-splicing post-processing unit is single-pass process unit or flush bonding processor.
7. display system is controlled in network collection fraction splicing according to claim 6, it is characterized in that: described the second video-splicing post-processing unit is selected from DSP, FPGA flush bonding processor or their combination.
8. display system is controlled in network collection fraction splicing according to claim 1, it is characterized in that: video acquisition and preliminary treatment set and the first video-splicing reprocessing set cloud processing server are substituted.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795989A (en) * | 2014-03-04 | 2014-05-14 | 上海晨驭信息科技有限公司 | Integrated and distributed type stitching control display system based on network |
| CN108255450A (en) * | 2018-01-08 | 2018-07-06 | 威创集团股份有限公司 | A kind of method and system of combination WORD document display controls |
| WO2019233314A1 (en) * | 2018-06-07 | 2019-12-12 | 杭州海康威视数字技术股份有限公司 | Method for echo imaging on television wall, service device and television wall system |
-
2014
- 2014-03-04 CN CN201420094972.7U patent/CN203734770U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103795989A (en) * | 2014-03-04 | 2014-05-14 | 上海晨驭信息科技有限公司 | Integrated and distributed type stitching control display system based on network |
| CN103795989B (en) * | 2014-03-04 | 2017-04-05 | 上海晨驭信息科技有限公司 | A kind of network collection fraction splicing control display system |
| CN108255450A (en) * | 2018-01-08 | 2018-07-06 | 威创集团股份有限公司 | A kind of method and system of combination WORD document display controls |
| CN108255450B (en) * | 2018-01-08 | 2020-11-24 | 威创集团股份有限公司 | Method and system for WORD document display control of spliced wall |
| WO2019233314A1 (en) * | 2018-06-07 | 2019-12-12 | 杭州海康威视数字技术股份有限公司 | Method for echo imaging on television wall, service device and television wall system |
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