CN209642824U - A kind of multi-channel video switching display device - Google Patents
A kind of multi-channel video switching display device Download PDFInfo
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- CN209642824U CN209642824U CN201920177446.XU CN201920177446U CN209642824U CN 209642824 U CN209642824 U CN 209642824U CN 201920177446 U CN201920177446 U CN 201920177446U CN 209642824 U CN209642824 U CN 209642824U
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Abstract
The utility model discloses a kind of multi-channel video switching display devices, including including extending multiple interfaces on the connectors, the XGA output interface and communication interface of multichannel XGA input interface and respective numbers are extended on specific connector；Wherein connector is connect by XGA input interface and XGA output interface with Inverse problem switch module；Inverse problem switch module is connect with FPGA module, and wherein Inverse problem switch module sends AD to FPGA module and acquires signal, and FPGA module sends Switch Control signal to Inverse problem switch module.The device maximum supports 4 channel difference XGA video acquisitions, switching, display and compression, and also has the function of Inverse problem, can be by 4 channel difference XGA videos in real time without interval switching output.
Description
Technical field
The utility model belongs to technical field of image processing；It is related to a kind of multi-channel video switching display device.
Background technique
With computer picture, increasingly developed, more and more fields of video processing technique, video acquisition, place are needed
Reason, compression and transmission technology, especially in fields such as railway, electric power, military projects.The information such as a large amount of voice, data, video, figure
It needs computer to be acquired in real time, handle, storing, transmitting and handling, and the high-resolution the video data volume of 2K, 4K is huge
Greatly, certain difficulty is all caused in data processing and transmission, so after data acquisition compression processing must be carried out to it.It is existing
Video compressing module be substantially and only support that a certain video input format is acquired and is compressed, will limit so a large amount of
Actual demand.
Utility model content
The utility model provides a kind of multi-channel video switching display device；The device maximum supports 4 channel difference XGA
Video acquisition, switching, display and compression, and also have the function of Inverse problem, it can be by the 4 real-time nothings of channel difference XGA video
Interval switching output.
The technical solution of the utility model is: a kind of multi-channel video switching display device, including extends on the connectors
Multiple interfaces extend the XGA output interface of multichannel XGA input interface and respective numbers on specific connector, and communication connects
Mouthful；Wherein connector is connect by XGA input interface and XGA output interface with Inverse problem switch module；Inverse problem switch
Module is connect with FPGA module, and wherein Inverse problem switch module sends AD to FPGA module and acquires signal, and FPGA module is to square
Battle array switching switch module sends Switch Control signal；Wherein XGA output interface passes through corresponding difference XGA module and matrix
Switch the input terminal connection of switch module, the output end of Inverse problem switch module passes through corresponding XGA module and corresponding XGA
Input interface connection；Wherein FPGA module sends VIN signal to compressing processing module；Compressing processing module completes multichannel AD letter
Number compression, and connect by the communication interface on connector with external equipment；Wherein connector is also connected with power module, electricity
Source module is to above-mentioned module for power supply.
Further, the utility model is also characterized by:
4 road XGA input interfaces and corresponding 4 road XGA output interface are wherein at most provided on connector.
Wherein be additionally provided with two-way PAL interface on connector, PAL interface by the TV5735 chip converted for format with
The connection of Inverse problem switch module.
Wherein Inverse problem switch is AD8175 chip.
Wherein FPGA module is also connected with configuration chip, and configuration chip is XCF32P.
Wherein communication interface is Ethernet interface, and compressing processing module is sent by Ethernet interface to external equipment
H.264 compressed bit stream data.
Wherein communication interface is RS422 interface, and external equipment sends control to compressing processing module by RS422 interface and refers to
It enables.
Wherein memory module is also connected in compressing processing module.
Wherein compressing processing module is TMS320DM8168 chip.
Compared with prior art, the utility model has the beneficial effects that the device can make realize multichannel XGA input and
The output switching control of XGA is realized in output by Inverse problem switch module, and AD signal is sent to by matrix switch module
FPGA module, FPGA module complete the acquisition of AD and the conversion of data format, then carry out original video with compressing processing module
The interaction of data, compressing processing module complete the compression processing to multichannel VIN signal, and compressing processing module passes through communication interface reality
Now by video information transmission to external equipment, and external equipment sends control to compressing processing module by communication interface and refers to
It enables.Video data is transmitted by communication interface in the device, substantially increases the compatibility of product and the ease for use of software,
Convenient for upgrading；And it can be by 4 channel difference XGA videos in real time without interval switching output.
Further, the 4 tunnel channels difference XGA are at most set on connector, and also set up two-way PAL interface for defeated
Enter the input of PAL format video and be converted to difference XGA input, there is very strong scalability and practicability；The device can prop up
4 channel difference XGA input is held, can be realized no-delay, lossless hardware exchange.
Further, configuration chip is used to carry out relevant configuration to FPGA module, and configuration bitstream file is passed through selection
Mode download in FPGA module.
Further, compressing processing module passes through Ethernet interface respectively and RS422 interface realizes H.264 compressed bit stream
The transmission of the transmission of data and the display on external equipment and control instruction；Memory module is for storing video counts simultaneously
According to.
Further, using TMS320DM8168 chip, the DDR3L memory of dominant frequency 1GHz, external 1GB, memory
Frequency is 666MHz, guarantees the high-speed transfer of its processing capacity and data in memory.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
The technical solution of the utility model is further illustrated in the following with reference to the drawings and specific embodiments.
The utility model provides a kind of multi-channel video switching display device, as shown in Figure 1, including connector, connection
It is provided with 4 road XGA input interfaces and 4 road XGA output interfaces on device, is additionally provided with two-way PLA interface on connector and communication connects
Mouthful, communication interface is Ethernet interface and RS422 interface；Connector passes through corresponding XGA module by 4 road XGA input interfaces
It is connect with Inverse problem switch module, 2 road PAL interfaces are connect by TV5735 chip with Inverse problem switch module, TV5735
Chip is used to PAL format being converted to difference XGA format；And the output end of Inverse problem switch module passes through a difference respectively
XGA module is connect with the XGA output interface on connector；Inverse problem switch module is connect with FPGA module, specific matrix
Switch switch module and send AD acquisition signal to FPGA module, and FPGA module sends switch to Inverse problem switch module and cuts
Change control signal；FPGA module is also connected with configuration chip, and configuration chip is XCF32P, configuration chip be used for FPGA module into
Row relevant configuration is downloaded to configuration bitstream file in FPGA module by selected mode, there are four ranks for configuration process
Section: understand configuration memory, FPGA module initialization, load configuration data, starter.
FPGA module sends VIN signal to compressing processing module, and compressing processing module can complete multichannel AD signal
Compression, H.264 compressing processing module will be transferred to external equipment by compressed bit stream by Ethernet interface, and external equipment passes through
RS422 interface sends control instruction to compressing processing module.
Connector is also connect with power module, and power module is LTM4644 chip, accesses 5V input power on connector,
Power module is converted into 3.3V, 1.2V, 1.8V and 1.1V voltage, uses for above-mentioned module.
Preferably, FPGA module selects the chip of the SMQ2V1000FG256 of compatible Xilinx and XQR2V1000 system,
The main AD acquisition for completing 4 channel XGA vision signals and control and the conversion of data format, and and compressing processing module
Carry out original video data interaction.Rgb signal is converted into YUV signal by FPGA module, and YUV signal is then sent into compression processing
Compression processing is carried out in module.The PAL format that FPGA module controls the input of two-way PAL interface simultaneously is converted to matching for XGA module
It sets, resolution ratio setting, realizes that the data conversion and matrix of BT656 format to VESA format are opened by using TV5735 chip
The selection of pass exports, and matrix switch selects AD8175 chip, and AD8175 chip is a dedicated difference and single-ended VGA analog matrix
Switch has 16 channel difference XGA input, the difference XGA output function in 9 channels.
Preferably, compressing processing module uses TMS320DM8168 chip, in dominant frequency 1GHz, the DDR3L of external 1GB
It deposits, clocked memory 666MHz, guarantees the high-speed transfer of the processing capacity and data of processor in memory.2GB's
NandFlash is used to solidify linux system and initialization TMS320DM8168 and application program, peripheral circuit further include clock
Management, power management etc..Compressing processing module mainly completes the H.264 compression of the XGA in 4 channels, and can receive from outside
The RS422 of equipment is instructed, and is controlled whole system.For example temporal information, superposition are superimposed before each PASS VIDEO compresses
Image information, pretreatment, and the channel agility etc. of switching output.H.264 compressing processing module will pass through ether by code stream simultaneously
Net is transferred to external equipment.
Claims (9)
1. a kind of multi-channel video switching display device, which is characterized in that including extending multiple interfaces on the connectors, specifically
The XGA output interface and communication interface of multichannel XGA input interface and respective numbers are extended on connector；Wherein XGA input connects
Mouth and XGA output interface are connect with Inverse problem switch module；Inverse problem switch module is connect with FPGA module, Inverse problem
Switch module sends AD to FPGA module and acquires signal, and FPGA module sends Switch Control letter to Inverse problem switch module
Number；
The XGA output interface is connect by corresponding difference XGA module with the input terminal of Inverse problem switch module, and matrix is cut
The output end for changing switch module is connected by corresponding XGA module with corresponding XGA input interface；
The FPGA module sends VIN signal to compressing processing module；The pressure of compressing processing module completion multi-channel video signal
Contracting, and connect by the communication interface on connector with external equipment；
The connector is also connected with power module, and power module is to above-mentioned module for power supply.
2. multi-channel video switching display device according to claim 1, which is characterized in that be provided on the connector
4 road XGA input interfaces and corresponding 4 road XGA output interface.
3. multi-channel video switching display device according to claim 1, which is characterized in that also set up on the connector
There is two-way PAL interface, PAL interface is connect by the TV5735 chip converted for format with Inverse problem switch module.
4. according to multi-channel video switching display device described in Claims 2 or 3 any one, which is characterized in that the square
Battle array switching switch is AD8175 chip.
5. multi-channel video switching display device according to claim 1, which is characterized in that the FPGA module is also connected with
Chip is configured, configuration chip is XCF32P.
6. multi-channel video switching display device according to claim 1, which is characterized in that the communication interface is ether
Network interface, compressing processing module send H.264 compressed bit stream data to external equipment by Ethernet interface.
7. multi-channel video switching display device according to claim 1, which is characterized in that the communication interface is
RS422 interface, external equipment send control instruction to compressing processing module by RS422 interface.
8. multi-channel video switching display device according to claim 1, which is characterized in that in the compressing processing module
It is also connected with memory module.
9. according to multi-channel video switching display device described in claim 6-8 any one, which is characterized in that the compression
Processing module is TMS320DM8168 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920177446.XU CN209642824U (en) | 2019-01-31 | 2019-01-31 | A kind of multi-channel video switching display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920177446.XU CN209642824U (en) | 2019-01-31 | 2019-01-31 | A kind of multi-channel video switching display device |
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| CN209642824U true CN209642824U (en) | 2019-11-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339106A (en) * | 2022-01-07 | 2022-04-12 | 北京格非科技股份有限公司 | Ultrahigh-definition SDI (Serial digital interface) and IP (Internet protocol) multi-picture signal processor |
-
2019
- 2019-01-31 CN CN201920177446.XU patent/CN209642824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114339106A (en) * | 2022-01-07 | 2022-04-12 | 北京格非科技股份有限公司 | Ultrahigh-definition SDI (Serial digital interface) and IP (Internet protocol) multi-picture signal processor |
| CN114339106B (en) * | 2022-01-07 | 2023-06-09 | 北京格非科技股份有限公司 | Ultra-high definition SDI (serial digital interface) and IP (Internet protocol) multi-picture signal processor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A multi channel video switching display device Effective date of registration: 20201021 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN RITRONTEK ELECTRONIC TECHNOLOGY Co.,Ltd. Registration number: Y2020610000180 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221111 Granted publication date: 20191115 Pledgee: Xi'an investment and financing Company limited by guarantee Pledgor: XI'AN RITRONTEK ELECTRONIC TECHNOLOGY CO.,LTD. Registration number: Y2020610000180 |