CN102497534B - Distribution network full high definition video matrix system - Google Patents
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- CN102497534B CN102497534B CN201110391793.0A CN201110391793A CN102497534B CN 102497534 B CN102497534 B CN 102497534B CN 201110391793 A CN201110391793 A CN 201110391793A CN 102497534 B CN102497534 B CN 102497534B
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Abstract
The invention relates to a distribution network full high definition video matrix system, which comprises a real-time high definition video receiving device for processing video input signals in encoding mode and storing the video input signals, a real-time high definition video transmission device for transmitting received video data to display equipment, a video source node, a video controller and a display node. The real-time high definition video receiving device selects commands according to algorithm of the video controller and converts video data input from the video source node into a corresponding format, and the video data are transmitted to the real-time video transmission device corresponding to the display node through an Ethernet exchanger according to the display node appointed by the video controller. The distribution network full high definition video matrix system can support a video processing system of high definition video signals no higher than 1080 P, is fast in transmission speed, can support collection processing of video signals of multiple input nodes and output of multiple output nodes, and effectively solves a bottleneck of receiving, processing and transmitting of videos at high speed in a traditional video matrix product.
Description
Technical field
The invention belongs to electronic technology field, be specifically related to a kind of distribution network full high definition video matrix system of the reception, processing and the transmission that are applied to multichannel real-time high-definition video data.
Background technology
The main function of video matrix is by the input signal of arbitrary port, via the processing of its inside, to be dispatched to the output port of any appointment, to reach the handoff functionality that carries out vision signal in the Plug Action situation of not carrying out cable.
Be accompanied by the development of broadcast television technique, video matrix has experienced by analog to digital, development course by SD to high definition, maximum input and output scale also increases along with the raising of actual requirement, its application also expands teleconference to from single field of broadcast televisions, and the many aspects such as video monitoring system, function, by single input and output handoff functionality, to carrying out the function with special switching effect.
In recent years, along with the development of high-definition video technology, video matrix product is also more and more, and people are also more and more higher to video matrix requirement, and in practical engineering application, often there is a series of problem in traditional video matrix product, first, can not support to send the vision signal of high-resolution (1080P), secondly, due to the restriction of conversion speed, vision signal time delay is excessive, the 3rd, vision signal point-to-point transmission, treatment effect is single.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of real-time Transmission of HD video, improves traditional point-to-point fixed signal transmission, realizes multichannel input and output, the distribution network full high definition video matrix system of multi-multipoint Transfer-matrix pattern.
For solving the problems of the technologies described above, the technical scheme that the present invention takes:
A kind of distribution network full high definition video matrix system, its special character is: comprise the real-time high-definition video receiving system processing and store for video input signals is encoded, for the video data transmitting receiving being delivered to real-time high-definition video dispensing device, video source node, Video Controller, the demonstration node of display device
Real-time high-definition video receiving system by from the video data of video source node input according to the algorithm selection instruction of Video Controller, be corresponding form by data transformation, the demonstration node of specifying according to Video Controller again, is sent to and is shown real-time high-definition video dispensing device corresponding to node by Ethernet switch.
Above-mentioned real-time high-definition video receiving system comprises video interface, data input modular converter, data processing module, data memory module, ethernet interface module, central control module, vision signal is input to data input modular converter through video interface, input modular converter coding by data this signal is converted to corresponding video data, data processing module is according to the different instruction of central control module, data are processed to processing, data memory module is used for the video data after stores processor, is connected by switch with network interface module with PC.
Above-mentioned real-time high-definition video dispensing device comprises ethernet module, data memory module, data output modular converter, video interface, central control module; The video data that switch sends over is transferred to data processing module through ethernet interface module, video data transmitting after the instruction process that data processing module transmits according to central control module is to data memory module, then the conversion of process data output modular converter finally sends to display terminal by video interface.
Above-mentioned data memory module comprises input data buffer storage unit, data buffering memory cell, output data buffer storage unit, and data memory module connects and composes successively by inputting data buffer storage unit, data buffering memory cell, output data buffer storage unit.
Above-mentioned Video Controller comprises video input node selection module, data processing method selection module, video output node selection module, the status signal that video input node selects module to detect video source node outputs to data processing method and selects module, video output node is selected the status signal of module detection display node to output to data processing method and is selected module, and data processing method selects module to arrive real-time high-definition video receiving system and real-time high-definition video dispensing device according to the State-output control command of video source node, demonstration node.
The chip that above-mentioned central control module, data input modular converter, data are exported the interface circuit of modular converter is xc6slx45.
Above-mentioned data memory module circuit chip is MT47H64M16HR.
The circuit chip of above-mentioned ethernet module is 88E1111.
The present invention is with respect to prior art, and tool has the following advantages and effect:
1, meet the reception of different resolution vision signal, support the reception of high-definition video signal can reach 1080P high-resolution.
2, the vision signal transmission of supporting and in real time processing.
3, support single-point to single-point, multi-multipoint output interface.
4, a kind of method that high clear video image is switched to the matrix device of any one output node demonstration from any one input node has been proposed.
The processing system for video of the highest high-definition video signal of supporting 1080P of the present invention, its transmission speed is fast, and can support acquisition process and the output of multiple output node of the vision signal of multiple input nodes, effectively solve conventional video matrix product high definition high-speed video is received, the bottleneck of processing and sending.
Brief description of the drawings
Fig. 1 is principle of the invention block diagram;
Fig. 2 is real-time high-definition video receiving system theory diagram of the present invention;
Fig. 3 is real-time high-definition video dispensing device theory diagram of the present invention;
Fig. 4 is data input modular converter interface circuit schematic diagram of the present invention;
Fig. 5 is data memory module circuit theory diagrams of the present invention;
Fig. 6 is ethernet module circuit theory diagrams of the present invention;
Fig. 7 is data output modular converter interface circuit schematic diagram of the present invention;
Fig. 8 is Video Controller message transmission flow figure of the present invention;
Fig. 9 is the theory diagram of Video Controller of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated:
Referring to Fig. 1, distribution network full high definition video matrix system of the present invention, can be by multi-channel video signal through real-time high-definition video receiving system, send to high speed Ethernet exchange machine, send to again the real-time high-definition video dispensing device of appointment via switch, final arrival shows node, and Video Controller transmits control message (comprise video source number and display terminal number, and data processing algorithm code name) to real-time high-definition video receiving system by switch.
Referring to Fig. 2, real-time high-definition video receiving system of the present invention, for the serial input signals of video source is converted to parallel data, issues the control message of central control module according to PC, data are processed to conversion, then stores and send to switch.It specifically comprises data input modular converter, data processing module, data memory module, ethernet interface module, central control module, vision signal is input to data input modular converter through video interface, inputs modular converter coding this signal is converted to corresponding video data by data.Data processing module, according to the different instruction of central control module, is processed processing to data.Data memory module is used for the video data after stores processor.Ethernet interface module be responsible between this device and PC communicate by letter and this device and other output node between video data transmission.
Referring to Fig. 3: real-time high-definition video dispensing device of the present invention, for the video data that switch is sended over, through storage, conversion finally sends to display terminal by video interface.It specifically comprises ethernet module, input/output data cache module, data memory module, video interface module.The Ethernet interface control module connecting successively, data processing module, data memory module, data output modular converter and central control module.Wherein Ethernet interface control module is responsible for communicating by letter and the transmission of video data between native system and other node.Data memory module comprises input data buffer storage unit, data buffering memory cell, output data buffer storage unit, and input data buffer storage unit, output data buffer storage unit can ensure the correct transmission of the intermodular data of friction speed.Data buffering memory cell is used for storing the video data sending over from other node.When video data reaches after the data volume of setting, through the decoding of data output modular converter, video data is transformed to the vision signal the output that are suitable for video interface.
Referring to Fig. 4, data input modular converter interface, supports 32 to 12 bit data inputs, and input pixel clock frequency adjustable extent 0 ~ 300MHZ, can support the input of multiple interfaces video data, supports full HD video data input.
Referring to Fig. 5, data memory module comprises input data buffering module, data buffering memory module, data output buffer module, data buffering memory module adopts DDR2 to realize, its operating frequency is different from pixel clock frequency, because adding a bit input data buffering module to ensure the integrality of data between input modular converter and data buffering memory module.Data buffering memory module is the key of whole design.The storage buffering of data is the problems that conventionally can run into during signal is processed.The buffering of vision signal, because its data volume is large, makes capacity and speed to memory all propose higher requirement.In the time of the ultimate resolution of system works at 1 600 × 1 200@60 Hz, storing the required capacity of frame data is d0=1 600 × 1 200 × 3 B=5.49 MB, data transfer rate is now d=d0 × 60=329.59 MB/s, and this requires memory to have large capacity and enough fast speed.Adopting the ping-pong operation of DDR2 both can meet the jumbo requirement of video data, can meet again the requirement in speed, is a kind of scheme preferably.
Referring to Fig. 6, ethernet interface module, it is the communication interface of whole device, implement device and PC control message mutual is also the data transmission interface of system, the transmission of the video data between implement device and other video node.The PHY chip that ethernet interface module adopts is 88E1111, uses full duplex mode of operation, and Adaptive Transmission speed is supported the transmission speed of the highest 1G.
Referring to Fig. 7, data output modular converter interface.Support 32 to 12 bit data outputs, output pixel clock frequency adjustable extent 0 ~ 300MHZ can support the vision signal output of multiple interfaces, supports full HD video data output.
Referring to Fig. 8, Video Controller comprises: video input node selects module, data processing method to select module, video output node to select module, moment is monitored the operating state of each node, user-operable is selected number and the numbering of Inport And Outport Node, if each nodal function is normal, software can point out user to select suitable processing method, after user has selected, can produce a control message, software can pass through gigabit ethernet switch, and control message is sent to each node.
Referring to Fig. 9, Video Controller comprises video input node selection module, data processing method selection module, video output node selection module, the status signal that video input node selects module to detect video source node outputs to data processing method and selects module, video output node is selected the status signal of module detection display node to output to data processing method and is selected module, and data processing method selects module to arrive real-time high-definition video receiving system and real-time high-definition video dispensing device according to the State-output control command of video source node, demonstration node.
Above-mentioned gigabit ethernet switch adopts gigabit 1000Base-T interfacing, and this technology realizes the smooth upgrade from 100Mbps to 1000Mbps in original Fast Ethernet system.The video equipment of many dispersions is formed unified switching matrix by this design, is suitable as very much high scalability, and the Surveillance center of high security and ease of manageability converges and access-layer switch.The design supports centralized MAC, IP, the binding of PORT combination in any; support user staged managing and password protection; support the features such as the restriction of elastic MAC address number, MAC Address and port binding, port isolation, comprise protocol conversation, the exchange of Intranet video data and share.
The similar audio video transmission conversion equipment of existing market base price:
| Product type | Function declaration | Unit price (unit) |
| VGA/H high-definition digital processor | Single channel HDTV input and output | 3,500.00 |
| V1 multi-screen processor | Real-time 2 road video inputs gather, the 2 non real-time compression outputs in road | 88,250.00 |
| Video and audio (AV) matrix switcher | 8 enter 4 goes out AV switching | 5,000～10,000 |
| Rgb matrix switch | 250MHz bandwidth, 8 enter 4 goes out | 15,000～25,000 |
| The present invention | Single channel sending/receiving device | 3,000 left and right |
Above equipment is the related equipment of traditional analog audio-video signal transmission plan, need in use processor, matrix switcher to support the use, complete function of the present invention, will need to increase the equipment such as splicer, signal conversion repeater according to client toward contact, hardware cost will be higher than patented product system schema.
In addition can the full HD 1080p audio frequency and video of independent process on market and the equipment of Internet Transmission also more rare, ripe product is mainly external product, expensive and differ greatly.
Parameter index of the present invention:
Claims (6)
1. a distribution network full high definition video matrix system, it is characterized in that: comprise for the real-time high-definition video receiving system of processing and storing that video input signals is encoded, for the video data transmitting receiving being delivered to the real-time high-definition video dispensing device of user's display device, video source node, Video Controller, show node, real-time high-definition video receiving system will be selected processing mode according to the instruction of Video Controller from the video data of video source node input, by coding video data processing, the demonstration node of specifying according to Video Controller again, after using AVB protocol encapsulation to process, send to specify by outside gigabit ethernet switch and show real-time high-definition video dispensing device corresponding to node, under the environment of gigabit ethernet local area network, realize multichannel input and output, multi-multipoint matrix synchronous transfer module,
Above-mentioned real-time high-definition video receiving system comprises video interface module, data input modular converter, video reception data processing module, video reception data memory module, gigabit ethernet interface module, video reception central control module, vision signal is input to data input modular converter through video interface module, input modular converter coding by data this signal is converted to corresponding video data encoder, video reception data processing module is according to the different instruction of video reception central control module, data are carried out to the encapsulation process of AVB procotol, video reception data memory module is used for the video data after stores processor, gigabit ethernet interface module is connected to outside gigabit ethernet switch transmission data, and can be connected with Video Controller and PC,
Above-mentioned real-time high-definition video dispensing device comprises that gigabit ethernet interface module, video send data processing module, video sends data memory module, data output modular converter, video interface module, video transmission central control module; The Internet video data that outside gigabit ethernet switch sends over are transferred to video through gigabit ethernet interface module and send data processing module, video sends data processing module and sends the instruction of central control module transmission, delivers to video after Internet video data are processed and send data memory module according to video, more finally sends to user's display device by video interface module through the conversion of output modular converter.
2. a kind of distribution network full high definition video matrix system according to claim 1, it is characterized in that: described video reception data memory module comprises input data buffer storage unit, data buffering memory cell, output data buffer storage unit, video reception data memory module connects and composes successively by inputting data buffer storage unit, data buffering memory cell, output data buffer storage unit.
3. a kind of distribution network full high definition video matrix system according to claim 2, it is characterized in that: described Video Controller comprises video input node selection module, data processing method is selected module, video output node is selected module, the status signal that video input node selects module to detect video source node outputs to data processing method and selects module, video output node is selected the status signal of module detection display node to output to data processing method and is selected module, data processing method selects module according to video source node, show that the State-output control command of node is to real-time high-definition video receiving system and real-time high-definition video dispensing device.
4. a kind of distribution network full high definition video matrix system according to claim 3, is characterized in that: the chip that described video reception central control module, data input modular converter, data are exported the interface circuit of modular converter is xc6slx45.
5. a kind of distribution network full high definition video matrix system according to claim 4, is characterized in that: described video reception data memory module circuit chip is MT47H64M16HR.
6. a kind of distribution network full high definition video matrix system according to claim 5, is characterized in that: the circuit chip of described gigabit ethernet interface module is 88E1111.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103079088B (en) * | 2012-12-14 | 2016-06-29 | 广东威创视讯科技股份有限公司 | Multi-screen video pre-filtering and synchronous broadcast method and system |
| CN103200396B (en) * | 2013-04-09 | 2016-05-04 | 广州瀚阳工程咨询有限公司 | Live video stream display methods and system based on information display platform |
| CN104113705A (en) * | 2013-04-16 | 2014-10-22 | 无锡思朗电子科技有限公司 | Distributed matrix switching system |
| CN104967791A (en) * | 2015-07-07 | 2015-10-07 | 广州魅视电子科技有限公司 | Distributed audio and video transmission control system |
| CN108134916B (en) * | 2016-12-01 | 2019-06-28 | 视联动力信息技术股份有限公司 | A kind of data processing method of 4K terminal and 4K terminal |
| CN107071235A (en) * | 2017-05-10 | 2017-08-18 | 广州市水方信息科技有限公司 | A kind of digital museum's intelligence control system |
| CN109379556B (en) * | 2018-09-30 | 2021-11-12 | 中国船舶重工集团公司第七0九研究所 | Audio and video system based on business processing basic unit and working method thereof |
| CN109788226B (en) * | 2018-12-26 | 2021-02-26 | 深圳市视晶无线技术有限公司 | Flexible routing many-to-one high-definition video transmission method and system |
| CN111813528B (en) * | 2020-07-17 | 2023-04-18 | 公安部第三研究所 | Video big data standardization convergence gateway system and method based on task statistical characteristics |
| CN114500876A (en) * | 2020-11-12 | 2022-05-13 | 深圳市奥拓电子股份有限公司 | Multifunctional video array control system, device and method |
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| CN201499263U (en) * | 2009-09-16 | 2010-06-02 | 成都微迪数字系统技术有限公司 | Single-fiber single-wavelength 1080P VOOP |
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