CN205453901U - A display control system for video broadcasts - Google Patents
A display control system for video broadcasts Download PDFInfo
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- CN205453901U CN205453901U CN201521139405.XU CN201521139405U CN205453901U CN 205453901 U CN205453901 U CN 205453901U CN 201521139405 U CN201521139405 U CN 201521139405U CN 205453901 U CN205453901 U CN 205453901U
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Abstract
The utility model discloses a display control system for video broadcasts, including video input board, two video processing boards and liquid -crystal display panel the video input board is connected with two video processing boards, two video processing boards are connected with liquid -crystal display panel 3. This system at first carries out resolution and refresh rate transform processing to video image to the user interface image of the same kind that provides with the controller carries out the range upon range of processing of denging, and the video image after the processing shows on liquid -crystal display panel. This system adopts dedicated video switch chip to accomplish processing such as video reformatting, has reduced the development degree of difficulty, shortens development period, the configuration of two video processing boards makes the user can broadcast the signal simultaneously and supervise the supervision of signal in advance to can freely switch between the two, keep watch on the video and improved nature directly perceived and the real -time of broadcasting the control operation greatly with the range upon range of demonstration in user action interface.
Description
Technical field
This utility model relates to technical field of video processing, particularly relates to a kind of display control program broadcasted for video being applied to field of broadcast televisions.
Background technology
In television broadcasting control system, it is the key issue that designer typically requires consideration that the broadcast control station generally using integrated level higher carries out supervision and the control system broadcasted, the supervision the most preferably realizing picture in limited space and the organic unity controlling interface.Meanwhile, the synchronization broadcasting picture (PGM) and premonitoring picture (PST) monitors most important, and this is to ensure that and broadcasts the premise controlling quality.And of the prior art process about the format conversion of video in video control system and the definition of image needs complicated circuit structure just it is achieved that so need to spend the biggest man power and material, do not accomplish the effect of energy-conserving and environment-protective.
Utility model content
The utility model discloses a kind of display control program broadcasted for video to include: video input plate, the input of described video input plate connects the SDI interface socket I and SDI interface socket II for transmitting broadcasting signal and premonitoring signal, outfan and two Video processing plates of described video input plate are connected, the outfan of said two Video processing plate is connected with LCD panel, described LCD panel includes two LCD liquid crystal display screens, and said two LCD liquid crystal display screen is connected with two Video processing plates respectively.
Described video input plate includes two signal interface circuits and switching circuit, and the input of said two signal interface circuit is connected with SDI interface socket I and SDI interface socket II respectively, and the outfan of said two signal interface circuit is connected with switching circuit.
Described Video processing plate includes deserializing circuit, video converter, controller, memorizer and integrated logic processing module, described deserializing circuit is connected with video converter, described video converter is connected with integrated logic processing module, and described integrated logic processing module is connected with controller and memorizer.
Owing to have employed technique scheme, a kind of display control program broadcasted for video that this utility model provides, first video image is carried out resolution and refresh rate conversion process, and the road user interface image provided with controller carries out stacking etc. and processes, and the video image after process shows on LCD panel.The format conversion etc. that native system uses special video conversion chip to complete video processes, and reduces development difficulty, shortens the construction cycle；The configuration of double Video processing plates makes user can carry out broadcasting signal and the supervision of premonitoring signal simultaneously, and can the most freely switch；Monitor that video and user interface stacking show to substantially increase and broadcast intuitive and the real-time controlling operation.It addition, this utility model also has simple in construction, it is simple to produce, the feature such as with low cost, be suitable to be widely popularized.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only some embodiments described in the application, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the circuit theory diagrams of signal interface circuit in this utility model；
Fig. 3 is the circuit theory diagrams of switching circuit in this utility model；
Fig. 4 is the circuit theory diagrams of memorizer in this utility model.
Detailed description of the invention
For making the technical solution of the utility model and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out the most complete description:
A kind of display control program broadcasted for video as shown in Figure 1, being connected with two Video processing plates 2 with a LCD panel 3, described video input plate 1 including 1, two Video processing plates 2 of video input plate, said two Video processing plate 2 is connected with LCD panel 3.
Video input plate 1 carries out equilibrium treatment to the two-path video signal of input, and utilizes intersection switching switch to be exported in 2 Video processing plates with the arbitrary relations of distribution by two-path video.
Video processing plate 2 utilizes its video conversion chip to supervise 1 tunnel of input after video carries out the conversion of resolution, refresh rate, picture and is supplied to FPGA in plate, in plate, FPGA utilizes outside DDR-RAM that this video is carried out frame synchronization operation so that it is the user interface image synchronization provided with ARM9 in plate.Meanwhile, this FPGA is to monitoring that video and user interface image carry out lamination operation.Here, monitor that video resolution is consistent with the ultimate resolution that liquid crystal display is supported with user interface image resolution.
Video data after FPGA stacking is exported the lcd drive chip of LCD panel 3 by Video processing plate 2.Two pieces of liquid crystal displays of LCD panel 3 show the image information from Video processing plate 2.By the control instruction of ARM, video conversion chip and FPGA cooperate and realize PGM or PST video window arbitrary size, the adjustment of position, and support window transparency, display brightness, contrast etc. set simultaneously.
Broadcasting signal (PGM) is connected with video input plate 1 by SDI interface socket I4 and SDI interface socket II5 with premonitoring signal (PST).Video input plate 1 is connected with Video processing plate 2 by connector.The outfan of two Video processing plates 1 is connected with LCD panel 3, and LCD panel 3 includes that two LCD liquid crystal display screens 31, two LCD liquid crystal display screens 31 are connected with two Video processing plates 2 respectively.
As shown in Figures 2 and 3: video input plate 1 includes two signal interface circuits 11 and switching circuit 12, the input of said two signal interface circuit 11 is connected with SDI interface socket I4 and SDI interface socket II5 respectively, and the outfan of said two signal interface circuit 11 is connected with switching circuit 12.
Video processing plate 2 includes deserializing circuit 21, video converter 24, controller 23, memorizer 22 and integrated logic processing module 25, described deserializing circuit 21 is connected with video converter 24, video converter 24 is connected with integrated logic processing module 25, and described integrated logic processing module 25 is connected with controller 23 and memorizer 22.
As shown in Figure 4: signal interface circuit 11 uses GS2994-INE3 chip, switching circuit 12 to use SY58029UMG chip, video converter 24 to use MDIN380 chip, controller 23 to use ARM9, the model of memorizer 22 to be MS81V5200.Integrated logic processing module 25 uses FPGA.
Broadcasting signal (PGM) is connected with video input plate 1 by SDI interface socket I4 and SDI interface socket II5 with premonitoring signal (PST), video input plate 1 distributes two paths of signals to 2 Video processing plate 2, Video processing plate 2 carries out resolution and refresh rate conversion respectively to the 1 road video signal received and the road user interface image with ARM9 offer carries out stacking etc. and processes, and the video image after process is connected with the lcd drive chip in LCD panel 3.LCD panel 3 comprises two pieces of liquid crystal displays being furnished with lcd drive chip, and they receive respectively from the video image of 2 tunnel Video processing plates 2 and show.In described video display system, the resolution of video and refresh rate conversion are completed by highly integrated video conversion chip, support that the picture of video converts simultaneously.Use FPGA and one piece of off-chip DDR-RAM that the video after conversion is carried out synchronization process and carries out stacking with user interface image (background).By the control instruction of ARM, video conversion chip and FPGA cooperate and can realize PGM or PST video window arbitrary size, the adjustment of position, and support window transparency, display brightness, contrast etc. set simultaneously.
The above; it is only this utility model preferably detailed description of the invention; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; conceive equivalent or change in addition according to the technical solution of the utility model and utility model thereof, all should contain within protection domain of the present utility model.
Claims (3)
1. the display control program broadcasted for video, it is characterized in that including: video input plate (1), the input of described video input plate (1) connects SDI interface socket I (4) and SDI interface socket II (5) for transmitting broadcasting signal and premonitoring signal, outfan and two Video processing plates (2) of described video input plate (1) are connected, the outfan of said two Video processing plate (2) is connected with LCD panel (3), described LCD panel (3) includes two LCD liquid crystal display screens (31), said two LCD liquid crystal display screen (31) is connected with two Video processing plates (2) respectively.
A kind of display control program broadcasted for video the most according to claim 1, it is further characterized in that: described video input plate (1) includes two signal interface circuits (11) and switching circuit (12), the input of said two signal interface circuit (11) is connected with SDI interface socket I (4) and SDI interface socket II (5) respectively, and the outfan of said two signal interface circuit (11) is connected with switching circuit (12).
A kind of display control program broadcasted for video the most according to claim 1, it is further characterized in that: described Video processing plate (2) includes deserializing circuit (21), video converter (24), controller (23), memorizer (22) and integrated logic processing module (25), described deserializing circuit (21) is connected with video converter (24), described video converter (24) is connected with integrated logic processing module (25), described integrated logic processing module (25) is connected with controller (23) and memorizer (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139405.XU CN205453901U (en) | 2015-12-31 | 2015-12-31 | A display control system for video broadcasts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521139405.XU CN205453901U (en) | 2015-12-31 | 2015-12-31 | A display control system for video broadcasts |
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| Publication Number | Publication Date |
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| CN205453901U true CN205453901U (en) | 2016-08-10 |
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| CN201521139405.XU Active CN205453901U (en) | 2015-12-31 | 2015-12-31 | A display control system for video broadcasts |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134397A1 (en) * | 2019-12-31 | 2021-07-08 | 上海飞来信息科技有限公司 | Method and apparatus for wireless transmission of an image, storage medium, and electronic device |
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2015
- 2015-12-31 CN CN201521139405.XU patent/CN205453901U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134397A1 (en) * | 2019-12-31 | 2021-07-08 | 上海飞来信息科技有限公司 | Method and apparatus for wireless transmission of an image, storage medium, and electronic device |
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