CN206506599U - A kind of device of video matrix switching - Google Patents
A kind of device of video matrix switching Download PDFInfo
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- CN206506599U CN206506599U CN201720069119.3U CN201720069119U CN206506599U CN 206506599 U CN206506599 U CN 206506599U CN 201720069119 U CN201720069119 U CN 201720069119U CN 206506599 U CN206506599 U CN 206506599U
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Abstract
The utility model is related to a kind of device of video matrix switching, including microcontroller, video input module, video prime processing module, Inverse problem chip, video post processing module, Video Output Modules and control interface；Video prime processing module is connected with video input module；Inverse problem chip is connected with video post processing module, video prime processing module and microcontroller respectively；Video Output Modules are connected with microcontroller and video post processing module respectively；Wherein, microcontroller receives the switching signal of control interface output, controls the Video Output Modules image freezing, and control Inverse problem chip to carry out video switching.In the utility model, freeze, switch and thawing time is shorter, human eye is difficult to discover, realize in the case of video source is nonsynchronous, without splashette and without interim card during switching, improve the experience sense of user.
Description
Technical field
The utility model is related to the technical field of video matrix, more specifically refers to a kind of dress of video matrix switching
Put.
Background technology
Video matrix refers to the method switched by array by m roads vision signal arbitrarily output to n roads monitoring device
Electronic installation, the generally input of matrix is m more than output>n.There are some video matrixs with Audio conversion function,
Video and audio signal can be synchronized to switching, this matrix is also referred to as video/audio matrix.Current video matrix is just in fact
There are analog matrix and the major class of character matrix two for existing method.Video matrix is generally used for all kinds of monitoring occasions, such as video conference,
Safety monitoring, long-distance education and scientific and technological court etc..
Current video matrix is difficult to accomplish synchronization due to the video source of access, therefore, can be made unavoidably when video switches
The problems such as into output splashette, delay interim card.
Therefore, it is necessary to design a kind of device of video matrix switching, the nonsynchronous situation of video source in input is realized
Under, also it can improve the experience sense of user in switching without splashette and without interim card.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, and there is provided a kind of device of video matrix switching.
To achieve the above object, the utility model uses following technical scheme：A kind of device of video matrix switching, including
Microcontroller, video input module, video prime processing module, Inverse problem chip, video post processing module, video frequency output
Module and control interface；The control interface is connected with the microcontroller；The video prime processing module is regarded with described
Frequency input module is connected；The Inverse problem chip handles mould with the video post processing module, the video prime respectively
Block and microcontroller connection；The Video Output Modules are handled with the microcontroller and the video rear class respectively
Module is connected；
Wherein, microcontroller receives the switching signal of control interface output, controls the Video Output Modules image freezing,
And control Inverse problem chip to carry out video switching.
Its further technical scheme is：The video input module includes input interface and interface chip, the input
Interface is connected with the interface chip；The interface chip is connected with the video post processing module.
Its further technical scheme is：The Video Output Modules include output interface and pio chip, the output
Chip is integrated SRAM video frequency output chip, and the pio chip is connected with the output interface, the pio chip and institute
State the connection of video post processing module.
Its further technical scheme is：The video prime processing module is video frequency processing chip.
Its further technical scheme is：The video post processing module is video frequency processing chip.
The beneficial effect of the utility model compared with prior art is：A kind of dress of video matrix switching of the present utility model
Put, by freezing current output picture, Inverse problem chip internal carries out video switching, thaw output picture after finishing, defeated
The video of frame out output is the video after switching, freezes, switches and thawing time is shorter, human eye is difficult to discover, therefore can
To realize in the case of the video source of input is nonsynchronous, also the body of user can be improved in switching without splashette and without interim card
Test sense.
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
A kind of structural representation of the device for video matrix switching that Fig. 1 provides for the utility model specific embodiment；
A kind of information exchange signal of the device for video matrix switching that Fig. 2 provides for the utility model specific embodiment
Figure.
Embodiment
In order to more fully understand technology contents of the present utility model, with reference to specific embodiment to skill of the present utility model
Art scheme is further described and illustrated, but is not limited to this.
Specific embodiment as shown in Fig. 1~2, a kind of device for video matrix switching that the present embodiment is provided, Ke Yiyun
During processing video, realize in the case of the video source of input is nonsynchronous, also can in switching without splashette and
Without interim card, the experience sense of user is improved.
A kind of device of video matrix switching, including microcontroller 6, video input module, video prime processing module 2,
Inverse problem chip 3, video post processing module 4, Video Output Modules and control interface 7；
The control interface 7 is connected with the microcontroller 6；The video prime processing module 2 and the video input
Module is connected；The Inverse problem chip 3 respectively with the video post processing module 4, the video prime processing module 2 with
And the microcontroller 6 is connected；The Video Output Modules 5 are handled with the microcontroller 6 and the video rear class respectively
Module 4 is connected；
Wherein, microcontroller 6 receives the switching signal that control interface 7 is exported, and controls the Video Output Modules 5 to freeze picture
Face, and control Inverse problem chip 3 to carry out video switching.
Specifically, control interface 7, for output switching signal, are connected with microcontroller 6；
Microcontroller 6, the switching signal for receiving the output of control interface 7, freezeout signal to Video Output Modules
Frozen interface, and control Inverse problem chip 3 to carry out video switching；
Video input module, for obtaining video source；
Video prime processing module 2, for carrying out prime processing to video source, obtains converting video, with video input mould
Block is connected；
Inverse problem chip 3, for carrying out Inverse problem to converting video, obtains branch's video, and receive the micro-control
The control signal that device 6 processed is inputted carries out video switching, is connected respectively with video prime processing module 2 and the microcontroller 6；
Video post processing module 4, for carrying out rear class processing to branch's video, obtains output video, with the matrix
Switching chip 3 is connected；
The Video Output Modules, the reception switching signal progress image freezing for receiving the input of microcontroller 6, and
Switching matrix chip is switched to after designated, defrosting picture, play video, respectively with microcontroller 6 and video rear class
Reason module 4 is connected.
By setting microcontroller 6 to be controlled Inverse problem chip 3 and Video Output Modules, needing to be regarded
When frequency switches, interface control module first controls Video Output Modules to the input video switching signal of microcontroller 6, microcontroller 6
Freeze current output picture, and progress video switching, the output picture for thawing current after finishing inside Inverse problem chip 3
Face, then export the picture that picture has been the stabilization after switching, and the output vision signal after defrosting is also stable, due to freezing,
Switching and the time thawed are very short, and human eye has the effect of the persistence of vision, and therefore, human eye is difficult to discover video when switching
Switch gap, so that the effect of the not splashette and non-interim card when ensure that output video switching.
The device of above-mentioned a kind of video matrix switching, by freezing inside current output picture, Inverse problem chip 3
Carry out video switching, after finishing thaw output picture, output picture output video for switching after video, freeze, switch with
And thawing time is shorter, human eye is difficult to discover, therefore can be realized in the case of the video source of input is nonsynchronous, can also cut
Without splashette and without interim card when changing, the experience sense of user is improved.
Further, video input module include input interface 8 and interface chip 1, the input interface 8 with it is described
Interface chip 1 is connected；The interface chip 1 is connected with the video post processing module 4.
Above-mentioned interface chip 1 can be ADV7604 chips or other chips of video input interface 8.
According to the difference of the input interface 8 of selection and interface chip 1, the form of the input signal of support have SDI,
A variety of video source signals such as HDMI, DVI, VGA, YPbPr, CVBS.
In addition, Video Output Modules include output interface 9 and pio chip 5, pio chip 5 is integrated SRAM video
Pio chip 5, pio chip 5 is connected with output interface 9, and pio chip 5 is connected with video post processing module 4.
In addition, pio chip 5 use be internally integrated SRAM, with caching function, can by input come in regard
The video frequency output chip 5 that frequency signal is freezed.Output interface 9 can select different video interfaces, Neng Gouzhi as needed
Hold the output of the vision signals such as conventional HDMI, DVI, VGA, YPbPr, CVBS.
In the present embodiment, video prime processing module 2 is video frequency processing chip, and video post processing module 4 is video
Process chip.
Specifically, video prime processing module 2 is specially Video Quality Metric process chip；Video post processing module 4 be regarding
Frequency conversion process chip.
It is above-mentioned that technology contents of the present utility model are only further illustrated with embodiment, in order to which reader is easier to understand,
But embodiment of the present utility model is not represented and is only limitted to this, and any technology done according to the utility model extends or recreated,
By protection of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (5)
1. a kind of device of video matrix switching, it is characterised in that at microcontroller, video input module, video prime
Manage module, Inverse problem chip, video post processing module, Video Output Modules and control interface；The control interface with
The microcontroller connection；The video prime processing module is connected with the video input module；The Inverse problem chip
It is connected respectively with the video post processing module, the video prime processing module and the microcontroller；The video
Output module is connected with the microcontroller and the video post processing module respectively；
Wherein, microcontroller receives the switching signal of control interface output, controls the Video Output Modules image freezing, and control
Inverse problem chip processed carries out video switching.
2. a kind of device of video matrix switching according to claim 1, it is characterised in that the video input module bag
Input interface and interface chip are included, the input interface is connected with the interface chip；The interface chip and the video
Post processing module is connected.
3. a kind of device of video matrix switching according to claim 2, it is characterised in that the Video Output Modules bag
Output interface and pio chip are included, the pio chip is integrated SRAM video frequency output chip, the pio chip and institute
Output interface connection is stated, the pio chip is connected with the video post processing module.
4. the device of a kind of video matrix switching according to claim 3, it is characterised in that the video prime handles mould
Block is video frequency processing chip.
5. the device of a kind of video matrix switching according to claim 3, it is characterised in that the video rear class handles mould
Block is video frequency processing chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069119.3U CN206506599U (en) | 2017-01-19 | 2017-01-19 | A kind of device of video matrix switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720069119.3U CN206506599U (en) | 2017-01-19 | 2017-01-19 | A kind of device of video matrix switching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506599U true CN206506599U (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720069119.3U Active CN206506599U (en) | 2017-01-19 | 2017-01-19 | A kind of device of video matrix switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206506599U (en) |
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2017
- 2017-01-19 CN CN201720069119.3U patent/CN206506599U/en active Active
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