CN210112162U

CN210112162U - Video processing module capable of realizing multi-channel video signal output and acquisition

Info

Publication number: CN210112162U
Application number: CN201921684767.5U
Authority: CN
Inventors: 肖红; 王凯
Original assignee: Sichuan Di Information Technology Co Ltd
Current assignee: Sichuan Di Information Technology Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2020-02-21
Anticipated expiration: 2029-10-09

Abstract

The utility model discloses a video processing module capable of realizing multi-path video signal output and acquisition, which comprises a first FPGA module, a second FPGA module, a power supply module and a clock module, wherein the first FPGA module is connected with the second FPGA module, the power supply module is respectively connected with the first FPGA module and the second FPGA module, the clock module is respectively connected with the first FPGA module and the second FPGA module, the video processing module also comprises a LVDS video signal output module, a DVI video output module and a difference 5-wire XGA signal output module which are respectively connected with the first FPGA module, and the video processing module capable of realizing multi-path video signal output and acquisition, can realize the processing of multi-path digital video signals during the application, has low cost, the signal quality is ensured, and the method has stronger flexibility and expansibility.

Description

Video processing module capable of realizing multi-channel video signal output and acquisition

Technical Field

The utility model relates to a video processing, concretely relates to can realize the video processing module of multichannel video signal output and collection.

Background

In various environments where video display is required to be used, such as consumer electronics, municipal administration, traffic, military industry and the like, the scale of signals required to be processed is increasing, and higher requirements are undoubtedly provided for signal processing of the FPGA, such as increase of bandwidth, I/O, logic processing complexity, corresponding external device interfaces and the like, which directly results in more investment in hardware cost.

In the conventional technology, the FGPA receives multiple paths of video signals through multiple hardware interfaces, each hardware interface corresponds to one path of video signal, and after frame rate conversion and other processing are performed on each path of video signal, each path of video signal is output through one hardware interface; this processing method requires high hardware requirements and requires a large investment in cost. In video transmission and display, for each path of signal, the acquired standard definition (or low definition) video image is processed correspondingly and then transmitted to the video display processing equipment by using a pair of coaxial cables for display. When a plurality of video capture devices are used to obtain information of a plurality of scenes and a plurality of display devices are used to display the information, a plurality of pairs of coaxial cables are required to transmit video signals. The method has the following defects: the cost is high, each display device needs at least one to two coaxial lines, and when the video processing device is far away from the display device, the construction cost is high and complicated. The signal distortion is relatively serious when the transmission distance is relatively long because common analog signals are transmitted in the coaxial line. The flexibility and the expansibility are poor, the difference of customer requirements is large, and the design and the manufacture of the video processing equipment are not facilitated by adopting the prior art.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems, the video processing module capable of realizing the output and the acquisition of the multi-channel video signals is provided, the processing of the multi-channel digital video signals can be realized when the video processing module is applied, the cost is low, the signal quality is ensured, and the flexibility and the expansibility are stronger.

The utility model discloses a following technical scheme realizes:

can realize video processing module of multichannel video signal output and collection, including first FPGA module, second FPGA module, power module and clock module, first FPGA module and second FPGA module are connected, power module is connected with first FPGA module and second FPGA module respectively, clock module is connected with first FPGA module and second FPGA module respectively, still include with LVDS video signal output module, DVI video output module, the 5 system XGA signal output modules of difference that first FPGA module is connected respectively, still include with LVDS video signal collection module, single-ended XGA video collection module, the 5 system XGA collection modules of difference that second FPGA module is connected respectively.

Furthermore, the video processing module can realize the output and the acquisition of a plurality of paths of video signals, and the LVDS video signal output module outputs 4 paths of video signals.

Furthermore, the video processing module can realize the output and the collection of multiple paths of video signals, and the DVI video output module is used for 2 paths of output.

Furthermore, a video processing module capable of realizing multi-path video signal output and collection is provided, and the differential 5-wire XGA signal output module is used for 2-path output.

Furthermore, the video processing module can realize the output and the acquisition of a plurality of paths of video signals, and the LVDS video signal acquisition module outputs 2 paths of signals.

Furthermore, the video processing module can realize the output and the acquisition of multiple paths of video signals, and the single-ended XGA video acquisition module is used for 2 paths of output.

Furthermore, the video processing module can realize the output and the acquisition of multiple paths of video signals, and the differential 5-wire XGA acquisition module is used for 2 paths of output.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model discloses can realize multichannel digital video signal's processing during the application, it is with low costs, guarantee signal quality, have stronger flexibility and expansibility.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Examples

As shown in fig. 1, the video processing module capable of outputting and collecting multiple paths of video signals comprises a first FPGA module, a second FPGA module, a power module and a clock module, wherein the first FPGA module is connected with the second FPGA module, the power module is respectively connected with the first FPGA module and the second FPGA module, the clock module is respectively connected with the first FPGA module and the second FPGA module, the video processing module further comprises an LVDS video signal output module, a DVI video output module and a differential 5-wire XGA signal output module, which are respectively connected with the first FPGA module, and the video processing module further comprises an LVDS video signal collection module, a single-end XGA video collection module and a differential 5-wire XGA collection module, which are respectively connected with the second FPGA module.

The LVDS video signal output module is used for 4 paths of output.

The DVI video output module is used for 2-path output.

The differential 5-wire XGA signal output module is used for 2-path output.

The LVDS video signal acquisition module outputs 2 paths.

The single-ended XGA video acquisition module is used for 2-path output.

The differential 5-wire XGA acquisition module is used for 2-path output.

In this embodiment, the first FPGA module and the second FPGA module select an ARTIX 7 chip of XILINX corporation as a core device for data interface management, the specific model is XC7a200T-2FBG676I, the start mode is an SPI load mode, the configuration chip selects S25FL256S, 2-channel LVDS video signal acquisition is realized by using a DS90CF386 chip, and the connectors share one HJ30J connector. 2-path VGA output display is realized by adopting 2 ADV7123 chips, line and field synchronizing signals are concomitantly output by the FPGA, and RGB analog signals in 2-path single-end VGA video signals are directly output after respectively adopting one AD8013 three paths of operational amplifiers. The line and field synchronous signals are output after passing through a TTL level driving chip SN74LVC8T245DGVR, the connectors share 1 double-layer DB-15, RGB analog signals in 2 paths of differential VGA video signals, and the RGB analog signals are directly output after respectively adopting 3 pieces of differential to single-end operational amplifier AD8130 AR. Line and field synchronous differential signals are output after passing through a differential TTL level to single-ended TTL level chip DS26F32ME/883, a connector shares 1 double-layer DB-15, 4 paths of LVDS output are realized by adopting 4 DS90C385 chips, 2 paths of the connector share one HJ30J connector, 2 paths of differential 5-wire XGA modules realize that 2 paths of RGB analog signals are output by adopting 2 ADV7123 chips, each path of analog signals adopt one single-end to differential operational amplifier AD8131, line and field synchronous signals are realized by adopting a single-end to differential chip DS26F31ME/883, 2 paths of output share one J30J-51 connector, 2 paths of differential 3-wire XGA, 2 paths of analog signals adopt 2 ADV7123 chips, RGB signals and HS and VS synchronous signals are converted into 3-wire differential RGB signals after signal superposition processing is carried out by an AD8148 chip, 2 paths of output share one J30J-51 connector, 2 paths of output share a J30 DVI video chip to realize that 2 paths of DVI video chips 410, the connector uses 2 DVI24+5P seats. The utility model discloses can realize multichannel digital video signal's processing during the application, it is with low costs, guarantee signal quality, have stronger flexibility and expansibility.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. Can realize video processing module of multichannel video signal output and collection, its characterized in that, including first FPGA module, second FPGA module, power module and clock module, first FPGA module and second FPGA module are connected, power module is connected with first FPGA module and second FPGA module respectively, clock module is connected with first FPGA module and second FPGA module respectively, still include with LVDS video signal output module, DVI video output module, the 5 system XGA signal output modules of difference that first FPGA module is connected respectively, still include with LVDS video signal collection module, single-ended XGA video collection module, the 5 system XGA collection modules of difference that second FPGA module is connected respectively.

2. The video processing module for outputting and collecting multiple video signals according to claim 1, wherein the LVDS video signal output module is 4-way output.

3. The video processing module for outputting and collecting multiple video signals according to claim 1, wherein said DVI video output module is a 2-way output module.

4. The video processing module capable of outputting and collecting multiple video signals according to claim 1, wherein the differential 5-wire XGA signal output module is 2-way output.

5. The video processing module for outputting and capturing multiple video signals according to claim 1, wherein the LVDS video signal capturing module is 2-way output.

6. The video processing module for outputting and capturing multiple video signals according to claim 1, wherein the single-ended XGA video capturing module is 2-way output.

7. The video processing module for outputting and capturing multiple video signals according to claim 1, wherein the differential 5-wire XGA capture module is 2-way output.