CN103220472A - Asymmetric high-definition video matrix supporting inputting and outputting of any video - Google Patents
Asymmetric high-definition video matrix supporting inputting and outputting of any video Download PDFInfo
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Abstract
The invention provides an asymmetric high-definition video matrix supporting inputting and outputting of any video. The asymmetric high-definition video matrix supporting the inputting and the outputting of any video comprises a video input and output device, a video switching device, a touch screen control device, a redundant power source device and an external RS232 and local area network (LAN) control device. The video input and output device is connected with the video switching device through cables, the touch screen control device is connected with the video switching device through cables, the external RS232 and LAN control device is connected with the video switching device through cables, and the redundant power source device is connected with the video switching device through cables. The asymmetric high-definition video matrix can really support composite signal input and composite signal output.
Description
Technical field
The present invention relates to video signal processing field, particularly relate to a kind of asymmetric HD video matrix of supporting any video input and output.
Background technology
Video matrix is mainly used in the mutual switching between front end video source and the rear end display device, be accompanied by video from analog to digital, continuous development from the SD to the high definition, video matrix has also experienced analog matrix to character matrix, the SD matrix is to the progressively evolution process of high definition matrix, develop so far, the HD video matrix has progressively been replaced traditional simulation SD matrix.A video matrix is mainly by the importation, output, and the core switching part, control section and power unit several sections are formed.
It is several that present existing video matrix mainly can be divided into analog matrix, HD video matrix, hybrid matrix, mixed insertion matrix etc., at present the most frequently used is hybrid matrix, hybrid matrix is equally by the importation, output, the core switching part, control section and power unit several sections are formed, and the importation is supported analog-and digital-, digital HD video output is supported in the video mix input of SD and high definition, output.Hybrid matrix all is the input and output of adopting symmetry, i.e. the way of input and output equates generally have only 4 the tunnel to import 4 tunnel outputs, and 8 the tunnel import 8 tunnel outputs, 16 tunnel inputs, 16 outputs, and 32 the tunnel import several specifications such as 32 tunnel outputs.Hybrid matrix adopts the direct input and output of various video interfaces.
Existing hybrid matrix is supported the mixed signal input, but can only support digital high-definition signal output, therefore strictly speaking inreal at last hybrid matrix, its shortcoming is that output signal has only the digital high-definition signal, can't with the display device compatibility of simulation SD; Hybrid matrix adopts the input and output of symmetry, and most input and output ways are unequal in using at the scene, needs 7 tunnel inputs and 9 tunnel outputs such as the scene, can only select the hybrid matrix of 16 tunnel inputs and 16 tunnel specifications, wastes very much resource; Hybrid matrix adopts the direct input and output of various video interfaces, the transmission of video signals distance is very limited, especially HDMI and DVI signal transmission distance are less than 10 meters, if the distance in the The field before signal source and the display device is above 10 meters, then need to increase the extender of vision signal, increased the cost and the complexity of system.
In a word, present video matrix can't be accomplished the asymmetric hybrid matrix that real support mixed signal input and mixed signal are exported.
Thereby, need the urgent technical problem that solves of those skilled in the art to be exactly at present: how to find a kind of novel video matrix, the asymmetric hybrid matrix of accomplishing to support mixed signal input and mixed signal output that can be real.
Summary of the invention
A technical problem to be solved by this invention provides a kind of asymmetric HD video matrix of supporting any video input and output, the asymmetric hybrid matrix of accomplishing to support mixed signal input and mixed signal output that this matrix can be real.
In order to address the above problem, the invention discloses a kind of asymmetric HD video matrix of supporting any video input and output, comprise video input/output unit, video switching device, touch-screen control device, redundant power device and the outside RS232 control device LAN control device of holding concurrently; Described video input/output unit links to each other with described video switching device by cable; Described touch-screen control device links to each other with described video switching device by cable; The described outside RS232 control device LAN control device of holding concurrently links to each other with described video switching device by cable; Described redundant power device links to each other with described video switching device by described cable.
Preferably, the interface shape of described video input/output unit comprises the RJ45 interface, and the form of the vision signal of described RJ45 interface support comprises CVBS vision signal, YPBPR vision signal, VGA vision signal, DVI vision signal, HDMI vision signal, SDI vision signal, simulated audio signal and digital audio and video signals.
Preferably, the chip of described video switching device can be according to the way of client's self-defined input and output of demand and the port of input and output.
Preferably, the form of the encoding and decoding of the codec chip support of described video switching device comprises two-way H.264 protocol encoding and decoding and lossless encoding/decoding.
Preferably, the scope of the delay time of described encoding and decoding is 0---20ms.
Preferably, plug-in 2 DDR2 of described codec chip, a codec chip can be supported the encoding and decoding of 6 road input signals or the encoding and decoding of 6 tunnel output signals.
Preferably, described redundant power device comprises the redundant power backup units.
Preferably, if the power supply on arbitrary road breaks down, described redundant power backup units begins to start as stand-by power supply.
Preferably, also comprise:
To encoding video signal and decoding, obtain the code signal of vision signal and the decoded signal of vision signal by the linux embedded OS.
Compared with prior art, the present invention has the following advantages:
1, video matrix of the present invention is supported the mixed signal input, supports mixed signal output, is hybrid matrix truly; Compatible strong, compatible all signal source and display device.
2, video matrix of the present invention belongs to unsymmetrical matrix, can change the input and output way arbitrarily according to field demand, and promptly one 24 tunnel matrix of the present invention can be formed 1 tunnel input, 23 road output matrixes; Also can form 12 tunnel inputs, 12 road output matrixes; Also can form 23 tunnel inputs, 1 road output matrix; The input and output way maximum using of this matrix has reduced cost.
3, video matrix of the present invention is supported 120 meters Distance Transmission of various vision signals, and transmission medium adopts common network interface, and 120 meters can be satisfied the demand that the user adjusts the distance and uses basically.
4, video matrix of the present invention reduces the complexity of system, reduces system acquisition cost and later maintenance cost.
In sum, video matrix of the present invention has solved the defective of the symmetrical matrix that present hybrid matrix exists, can compatible all signal sources and display device, and save system cost simultaneously and reduce the system complex degree.
In a word, the invention provides provides a kind of asymmetric HD video matrix of supporting any video input and output, the asymmetric hybrid matrix of accomplishing to support mixed signal input and mixed signal output that this matrix can be real.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in below embodiment being described, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of structural representation of supporting the asymmetric HD video matrix embodiment 1 of any video input and output of the present invention;
Wherein, 1, video input/output unit 2, video switching device; 3, touch-screen control device; 4, redundant power device; 5, outside RS232 control and LAN control device; 6, cable;
Fig. 2 is a kind of structural representation of supporting the asymmetric HD video matrix embodiment 2 of any video input and output of the present invention;
Fig. 3 is the schematic diagram of matrix mode of operation among the present invention.
Embodiment
The embodiment of the invention provides a kind of asymmetric HD video matrix of supporting any video input and output, the asymmetric hybrid matrix of accomplishing to support mixed signal input and mixed signal output that this matrix can be real.
For make goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, but not whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
One of core concept of the present invention has provided a kind of asymmetric HD video matrix of supporting any video input and output, comprises video input/output unit, video switching device, touch-screen control device, redundant power device and the outside RS232 control device LAN control device of holding concurrently; Described video input/output unit links to each other with described video switching device by cable; Described touch-screen control device links to each other with described video switching device by cable; The described outside RS232 control device LAN control device of holding concurrently links to each other with described video switching device by cable; Described redundant power device links to each other with described video switching device by described cable; This matrix can be real accomplish the asymmetric hybrid matrix of supporting that mixed signal input and mixed signal are exported.
In order to make those of ordinary skill in the art understand the present invention better, be described in detail as follows technical term below, specific as follows described:
HD video: HD video refers to the video of high definition, definition can reach 1080p resolution and 60hz refresh rate, the HD video interface has HDMI (HDMI (High Definition Multimedia Interface)), DVI (digital visual interface) and SDI (digital serial interface) etc.
Matrix: matrix refers to a 2-D data of arranging in length and breadth originally, and matrix specifically refers to the equipment that leading portion video source and rear end display device switch mutually of being responsible in video system.
Hybrid matrix: the matrix of supporting the mixed video input and output.
HDMI: HDMI (High Definition Multimedia Interface).
YPBPR: the color difference components signal, with brightness and color-separated.
VGA: video graphics array is a kind of analog video signal interface, is mainly used in the connection between computer and the display.
CVBS: composite video signal is a kind of analog video signal interface.
DVI: digital visual interface.
SDI: serial digital interface.
H.264: high compression digital video decoding standard.
DDR2: the memory techniques standard of new generation of EEE electronic equipment engineering joint committee exploitation.
Linx-Net: high-definition multimedia signal codec algorithm protocol, can carry out lossless encoding/decoding to the high-definition multimedia signal.
HDCP: high-bandwidth content protection agreement is mainly used in HDMI (High Definition Multimedia Interface).
FPGA: field programmable gate array.
With reference to Fig. 1, show a kind of structural representation of supporting the asymmetric HD video matrix embodiment 1 of any video input and output of the present invention, specifically can comprise:
A kind of asymmetric HD video matrix of supporting any video input and output comprises video input/output unit 1, video switching device 2, touch-screen control device 3, redundant power device 4 and the outside RS232 control device LAN control device 5 of holding concurrently; Described video input/output unit 1 links to each other with described video switching device 2 by cable 6; Described touch-screen control device 3, described outside RS232 control and LAN control device 5 and described video switching device 2 by cable 6 with link to each other; Hold concurrently LAN control device 5 of described redundant power device 4, described outside RS232 control device links to each other with described video switching device 2 by cable 6.The interface shape of described video input/output unit 1 comprises the RJ45 interface, and the form of the vision signal of described RJ45 interface support comprises CVBS vision signal, YPBPR vision signal, VGA vision signal, DVI vision signal, HDMI vision signal, SDI vision signal, simulated audio signal and digital audio and video signals.The chip of described video switching device 2 can be according to the way of client's self-defined input and output of demand and the port of input and output.The form of the encoding and decoding of the codec chip support of described video switching device 2 comprises two-way H.264 protocol encoding and decoding and lossless encoding/decoding.The scope of the delay time of described encoding and decoding is 0---20ms.Plug-in 2 DDR2 of described codec chip, a codec chip can be supported the encoding and decoding of 6 road input signals or the encoding and decoding of 6 tunnel output signals.Described redundant power device comprises the redundant power backup units.If the power supply on arbitrary road breaks down, described redundant power backup units begins to start as stand-by power supply.To encoding video signal and decoding, obtain the code signal of vision signal and the decoded signal of vision signal by the linux embedded OS.
Below by specific embodiment and accompanying drawing, technical scheme of the present invention is further detailed.
With reference to Fig. 2, show the structural representation of the super single netting twine extender embodiment 2 of a kind of HDMI of the present invention and control signal, specifically can comprise:
In Fig. 2, video source is connected by cable with transmitting terminal, generally, video source is a DVD player, the HD DVD player, blue-ray DVD player, CATV set-top-box, satellite television set-top box or computer, the signal of video source has the HDMI signal, YPBPR signal, VGA signal and CVBS signal.The output port of video source and the input port of transmitting terminal of the present invention are equipped with suitable cable.Generally, suitable cable is a HDMI cable, YPBPR cable, VGA cable and CVBS cable.
Transmitting terminal comprises HDMI with the signal of video source, YPBPR, VGA and CVBS conversion of signals become the Linx-Net protocol signal of standard, output to HD video matrix of the present invention by network interface, and the netting twine by standard between transmitting terminal and the HD video matrix of the present invention connects.Receiving terminal becomes vision signal with the Linx-Net protocol signal reduction of standard, as HDMI, and YPBPR, VGA and CVBS signal.Receiving terminal is connected by netting twine with HD video matrix of the present invention.Receiving terminal is connected by suitable cable with display, and generally, suitable cable is a HDMI cable, YPBPR cable, VGA cable and CVBS cable.
Display is the content for display application, as video.Generally, display is a high definition TV, comprises LCD TV, plasm TV, and the DLP TV, perhaps computer monitor comprises LCD and other flat-panel monitors, also comprises the projecting apparatus and the projector of high definition simultaneously.
HD video matrix of the present invention can support the multichannel transmitting terminal to be connected simultaneously with the multipath reception end, and switches.
With reference to Fig. 3, show the schematic diagram of matrix mode of operation among the present invention.
In Fig. 3,1, codec chip; 2, CVBS, YPBPR, VGA, DVI, HDMI, SDI, audio signal input and output; 3, DDR; 4, switch chip; 5, master control set.
From Fig. 3, matrix mode of operation among the present invention as can be seen, specific as follows described:
The switching chip of matrix adopts the switching chip of external certain jumbo chip company, the bandwidth of supporting input and output is up to 6.25Gbps, the time that input and output are switched is less than 100ms, and supports the self-defined of input and output way, arbitrary port all can be defined by input or output.The chip of the external jumbo chip of the same employing of the codec chip of matrix company is supported H.264 protocol encoding and decoding of two-way, supports lossless encoding/decoding, and the efficient of encoding and decoding can be up to more than 4 times of industry average level.The time-delay of encoding and decoding can be controlled in the 20ms, plug-in 2 DDR2 of codec chip, and a codec chip can be supported the encoding and decoding of six tunnel inputs or output signal.All videos are connected to the codec chip of switching part by the video input, and system can judge automatically that what be connected with the video input is to import or output signal, if input signal then with this signal decoding, otherwise is then encoded.Input signal switches through being input to after the codec chip decoding to switch in the chip, or is input to codec chip from the signal that switches chip output and encodes, then by the output of video input.
Matrix of the present invention adopts free linux embedded OS to carry out the encoding and decoding of signal, the real lossless encoding/decoding of realizing vision signal, can reach the very image effect of high definition, switching chip simultaneously can dispose arbitrarily, has therefore realized a kind of asymmetrical brand-new matrix.The input of matrix of the present invention adopts the input/output interface of RJ45 interface as video, supports the input and output of CVBS, YPBPR, VGA, DVI, vision signals such as HDMI, SDI, supports the input and output of analogue audio frequency and digital audio simultaneously.
Matrix of the present invention adopts the color 3.5 inches touch-screens of overall height Islamic to control, and can realize any configuration of input and output, and any switching of matrix is supported the preservation of 11 kinds of scenes and called the concrete configuration state of the current matrix of while energy real time inspection.
Matrix of the present invention is supported the redundant power backup, supports 7---used in 24 hours, any one road power supply backup battery that automatically switches to that matrix can be seamless that breaks down supports the hot plug of power supply to change.
A kind of asymmetric HD video matrix of any video input and output of supporting provided by the present invention has been realized the asymmetric hybrid matrix that real support mixed signal input and mixed signal are exported, and this asymmetric hybrid matrix can be supported the transmission range in 120 meters scopes.
In a word, the invention provides a kind of asymmetric HD video matrix of supporting any video input and output, the asymmetric hybrid matrix of accomplishing to support mixed signal input and mixed signal output that this matrix can be real.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For system embodiment, because it is similar substantially to method embodiment, so description is fairly simple, relevant part gets final product referring to the part explanation of method embodiment.
More than a kind of asymmetric HD video matrix of any video input and output of supporting provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (9)
1. an asymmetric HD video matrix of supporting any video input and output is characterized in that, comprises video input/output unit, video switching device, touch-screen control device, redundant power device and the outside RS232 control device LAN control device of holding concurrently; Described video input/output unit links to each other with described video switching device by cable; Described touch-screen control device links to each other with described video switching device by cable; The described outside RS232 control device LAN control device of holding concurrently links to each other with described video switching device by cable; Described redundant power device links to each other with described video switching device by described cable.
2. the asymmetric HD video matrix of any video input and output of support according to claim 1 is characterized in that:
The interface shape of described video input/output unit comprises the RJ45 interface, and the form of the vision signal of described RJ45 interface support comprises CVBS vision signal, YPBPR vision signal, VGA vision signal, DVI vision signal, HDMI vision signal, SDI vision signal, simulated audio signal and digital audio and video signals.
3. the asymmetric HD video matrix of any video input and output of support according to claim 1 is characterized in that:
The chip of described video switching device can be according to the way of client's self-defined input and output of demand and the port of input and output.
4. the asymmetric HD video matrix of any video input and output of support according to claim 3 is characterized in that:
The form of the encoding and decoding of the codec chip support of described video switching device comprises two-way H.264 protocol encoding and decoding and lossless encoding/decoding.
5. the asymmetric HD video matrix of any video input and output of support according to claim 4 is characterized in that:
The scope of the delay time of described encoding and decoding is 0---20ms.
6. the asymmetric HD video matrix of any video input and output of support according to claim 4 is characterized in that:
Plug-in 2 DDR2 of described codec chip, a codec chip can be supported the encoding and decoding of 6 road input signals or the encoding and decoding of 6 tunnel output signals.
7. the asymmetric HD video matrix of any video input and output of support according to claim 1 is characterized in that:
Described redundant power device comprises the redundant power backup units.
8. the asymmetric HD video matrix of any video input and output of support according to claim 7 is characterized in that:
If the power supply on arbitrary road breaks down, described redundant power backup units begins to start as stand-by power supply.
9. the asymmetric HD video matrix of any video input and output of support according to claim 1 is characterized in that, also comprises:
To encoding video signal and decoding, obtain the code signal of vision signal and the decoded signal of vision signal by the linux embedded OS.
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| CN103841338A (en) * | 2014-01-24 | 2014-06-04 | 广州市天誉创高电子科技有限公司 | Hybrid matrix switcher |
| CN104683705A (en) * | 2015-03-16 | 2015-06-03 | 南京巨鲨显示科技有限公司 | Video matrix for medical rail combination image consultation system |
| CN104902194A (en) * | 2015-06-03 | 2015-09-09 | 深圳市创凯电子有限公司 | Video/audio signal channel switching device |
| CN105120184A (en) * | 2015-10-09 | 2015-12-02 | 深圳市捷视飞通科技有限公司 | High-definition video seamless matrix based on FPGA (field programmable gate array) |
| CN106412659A (en) * | 2016-10-20 | 2017-02-15 | 青岛海信电器股份有限公司 | Television control method and device and television |
| CN107277300A (en) * | 2017-06-08 | 2017-10-20 | 山东中安科技股份有限公司 | Multifunctional intellectual audio-visual education programme all-in-one |
| CN107295273A (en) * | 2017-07-29 | 2017-10-24 | 安徽博威康信息技术有限公司 | A kind of mixed insertion matrix switcher |
| CN109640004A (en) * | 2019-01-25 | 2019-04-16 | 北京电子工程总体研究所 | A kind of the computer video transmission method and system of low bandwidth |
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| CN105120184A (en) * | 2015-10-09 | 2015-12-02 | 深圳市捷视飞通科技有限公司 | High-definition video seamless matrix based on FPGA (field programmable gate array) |
| CN106412659A (en) * | 2016-10-20 | 2017-02-15 | 青岛海信电器股份有限公司 | Television control method and device and television |
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| CN109640004A (en) * | 2019-01-25 | 2019-04-16 | 北京电子工程总体研究所 | A kind of the computer video transmission method and system of low bandwidth |
| CN109640004B (en) * | 2019-01-25 | 2021-11-30 | 北京电子工程总体研究所 | Low-bandwidth computer video transmission method and system |
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