CN102497534A - Distribution network full high definition video matrix system - Google Patents
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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 full HD video matrix of distributed network system that is applied to reception, processing and the transmission of the real-time HD video data of multichannel.
Background technology
The main function of video matrix is and can the input signal of arbitrary port via its inner processing, be dispatched to the output port of any appointment, to reach the handoff functionality that under the Plug Action situation of not carrying out cable, carries out vision signal.
Be accompanied by the development of broadcast television technique, video matrix has experienced by analog to digital, by the development course of SD to high definition; Maximum input and output scale also increases along with the raising of reality requirement; Its application also expands teleconference to from single field of broadcast televisions, and many aspects such as video monitoring system are on function; By single input and output handoff functionality, to the function that can have special switching effect.
In recent years, along with the development of HD video technology, the video matrix product is also more and more, and people require also increasingly high to video matrix; And in practical engineering application, often there is a series of problem in traditional video matrix product, at first, can not support to send the vision signal of high-resolution (1080P); Secondly, because the restriction of conversion speed, the vision signal time-delay is excessive; The 3rd, the vision signal point-to-point transmission, treatment effect is single.
Summary of the invention
The technical problem that the present invention will solve provides a kind of real-time Transmission of HD video, improves traditional point-to-point fixed signal transmission, realizes the multichannel input and output, the full HD video matrix of the distributed network system of multi-multipoint matrix transmission mode.
For solving the problems of the technologies described above the technical scheme that the present invention takes:
The full HD video matrix of a kind of distributed network system; Its special character is: comprise being used for the real-time HD video receiving system that the video input signals encoding process is also stored, real-time HD video dispensing device, video source node, Video Controller, the demonstration node that is used for the video data that receives is sent to display device
In real time the HD video receiving system will be from the video data of the video source node input algorithm selection instruction according to Video Controller; With data conversion is corresponding form; According to the demonstration node of Video Controller appointment, send to demonstration node corresponding real-time HD video dispensing device again through Ethernet switch.
Above-mentioned real-time HD 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; Is corresponding video data through data input modular converter coding with this conversion of signals; Data processing module is according to the different instruction of central control module; Data are carried out processed, and data memory module is used for the video data after the stores processor, is connected with PC through switch with the network interface module.
Above-mentioned real-time HD 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; The video Data Transmission of data processing module after according to the instruction process of central control module transmission is to data memory module, and the conversion through data output modular converter sends to display terminal through video interface at last again.
Above-mentioned data memory module comprises input data buffer storage unit, data buffering memory cell, dateout buffer unit, and data memory module is connected and composed by input data buffer storage unit, data buffering memory cell, dateout buffer unit successively.
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 the video source node outputs to data processing method and selects module; The status signal that video output node selection module detects the demonstration node outputs to data processing method selection module, and data processing method selects module to arrive real-time HD video receiving system and real-time HD video dispensing device according to the state output control command of video source node, demonstration node.
The chip of the interface circuit of above-mentioned central control module, data input modular converter, data output 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 has following advantage and effect with respect to prior art:
1, satisfies the reception of different resolution vision signal, support the reception of high-definition video signal can reach the 1080P high-resolution.
2, the vision signal of supporting transmits and handles in real time.
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 output node demonstration from any input node has been proposed.
The highest processing system for video of supporting the high-definition video signal of 1080P of the present invention; Its transmission speed is fast; And the collection of video signal that can support a plurality of input nodes is handled and the output of a plurality of output node; Effectively solve conventional video matrix product and the high definition high-speed video is received the bottleneck of handling and sending.
Description of drawings
Fig. 1 is a principle of the invention block diagram;
Fig. 2 is the real-time HD video receiving system of a present invention theory diagram;
Fig. 3 is the real-time HD video dispensing device of a present invention theory diagram;
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; The full HD video matrix of distributed network of the present invention system can send to the high speed Ethernet exchange machine with multi-channel video signal through real-time HD video receiving system; Send to the real-time HD video dispensing device of appointment again via switch; Final arrival shows node, and Video Controller transmits control message (comprising video source number and display terminal number and data processing algorithm code name) to real-time HD video receiving system through switch.
Referring to Fig. 2, real-time HD video receiving system of the present invention is used for converting the serial input signals of video source into parallel data, issues the control messages of central control module according to PC, and data are handled conversion, stores and send to switch then.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, is corresponding video data through data input modular converter coding with this conversion of signals.Data processing module carries out processed according to the different instruction of central control module to data.Data memory module is used for the video data after the stores processor.Ethernet interface module be responsible between this device and the PC communicate by letter and this device and other output node between video data transmit.
Referring to Fig. 3: real-time HD video dispensing device of the present invention, be used for video data that switch is sended over, through storage, conversion sends to display terminal through video interface at last.It specifically comprises ethernet module, I/O data cache module, data memory module, video interface module.The Ethernet interface control module that connects successively, data processing module, data memory module, data output modular converter and central control module.Wherein the Ethernet interface control module is responsible for the transmission with video data of communicating by letter between native system and other node.Data memory module comprises input data buffer storage unit, data buffering memory cell, dateout buffer unit, and input data buffer storage unit, dateout buffer unit can guarantee the correct transmission of the intermodular data of friction speed.The data buffering memory cell is used for storing the video data that sends over from other node.Reach the data volume of setting when video data after, through the decoding of data output modular converter, video data is transformed to vision signal and the output that is suitable for video interface.
Referring to Fig. 4, data input modular converter interface is supported the input of 32 to 12 bit data, 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; The data buffering memory module, data output buffer module, data buffering memory module adopt DDR2 to realize; Its operating frequency is different with pixel clock frequency, imports the integrality that the data buffering module guarantees data because of between input modular converter and data buffering memory module, adding a bit.The data buffering memory module is whole key for design.The storage buffering of data is the problems that can run into usually in the signal processing.The buffering of vision signal, because its data volume is big, feasible capacity and speed to memory has all proposed to compare higher requirement.When the ultimate resolution of system works at 1 600 * 1 20060 Hz; Storing the required capacity of frame data is d0=1 600 * 1 200 * 3 B=5.49 MB; The data transfer rate of this moment is d=d0 * 60=329.59 MB/s, and this requires memory to have big capacity and enough fast speed.Adopting the ping-pong operation of DDR2 both can satisfy the jumbo requirement of video data, can satisfy the requirement on the speed again, 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 messages mutual also is 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 the 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 the output of 32 to 12 bit data, output pixel clock frequency adjustable scope 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, monitors the operating state of each node constantly; User-operable is selected the number and the numbering of input and output node, if each nodal function is normal, software can point out the user to select suitable processing method; After the user selects to accomplish; Can produce a control messages, software can pass through gigabit ethernet switch, and control messages 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 the video source node outputs to data processing method and selects module; The status signal that video output node selection module detects the demonstration node outputs to data processing method selection module, and data processing method selects module to arrive real-time HD video receiving system and real-time HD 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.This design is formed unified switching matrix with the video equipment of many dispersions, 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, PORT combination in any to bind; Support user staged managing and password protection; Support characteristics such as the restriction of elastic MAC address number, MAC Address and port binding, port isolation, comprise that protocol conversation, the exchange of Intranet video data are with shared.
The similar audio frequency and video transmission of existing market conversion equipment base price:
| Product type | Function declaration | Unit price (unit) |
| VGA/H high-definition digital processor | Single channel HDTV input and output | 3,500.00 |
| The V1 multi-screen processor | Real- |
88,250.00 |
| Look audio frequency (AV) matrix switcher | 8 advance 4 goes out the AV switching | 5,000～10,000 |
| The rgb matrix switch | The 250MHz bandwidth, 8 advance 4 goes out | 15,000～25,000 |
| The present invention | Single channel transmission/receiver | About 3,000 |
Above equipment is the related equipment of traditional analog audio-video signal transmission plan; In use need be with processor, the supporting use of matrix switcher; Accomplish function of the present invention; Will increase equipment such as splicer, conversion of signals repeater according to client's needs toward contact, hardware cost will be higher than the patented product system schema.
In addition can the full HD 1080p audio frequency and video of independent process on the market and the equipment of Network Transmission also more rare, ripe product mainly is an external product, costs an arm and a leg and differs greatly.
Parameter index of the present invention:
Claims (8)
1. the full HD video matrix of distributed network system; It is characterized in that: comprise being used for the real-time HD video receiving system that the video input signals encoding process is also stored, real-time HD video dispensing device, video source node, Video Controller, the demonstration node that is used for the video data that receives is sent to display device; In real time the HD video receiving system will be from the video data of the video source node input algorithm selection instruction according to Video Controller; With data conversion is corresponding form; According to the demonstration node of Video Controller appointment, send to demonstration node corresponding real-time HD video dispensing device again through Ethernet switch.
2. the full HD video matrix of a kind of distributed network according to claim 1 system; It is characterized in that: described real-time HD 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; Is corresponding video data through data input modular converter coding with this conversion of signals; Data processing module is according to the different instruction of central control module; Data are carried out processed, and data memory module is used for the video data after the stores processor, is connected with PC through switch with the network interface module.
3. the full HD video matrix of a kind of distributed network according to claim 1 system is characterized in that: described real-time HD 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; The video Data Transmission of data processing module after according to the instruction process of central control module transmission is to data memory module, and the conversion through data output modular converter sends to display terminal through video interface at last again.
4. according to claim 2 or the full HD video matrix of 3 described a kind of distributed networks system; It is characterized in that: described data memory module comprises input data buffer storage unit, data buffering memory cell, dateout buffer unit, and data memory module is connected and composed by input data buffer storage unit, data buffering memory cell, dateout buffer unit successively.
5. the full HD video matrix of a kind of distributed network according to claim 4 system; It is characterized in that: described 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 the video source node outputs to data processing method and selects module; The status signal that video output node selection module detects the demonstration node outputs to data processing method selection module, and data processing method selects module to arrive real-time HD video receiving system and real-time HD video dispensing device according to the state output control command of video source node, demonstration node.
6. the full HD video matrix of a kind of distributed network according to claim 5 system is characterized in that: the chip of the interface circuit of described central control module, data input modular converter, data output modular converter is xc6slx45.
7. the full HD video matrix of a kind of distributed network according to claim 6 system, it is characterized in that: described data memory module circuit chip is MT47H64M16HR.
8. the full HD video matrix of a kind of distributed network according to claim 7 system, it is characterized in that: the circuit chip of described ethernet module is 88E1111.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103079088A (en) * | 2012-12-14 | 2013-05-01 | 广东威创视讯科技股份有限公司 | Multi-screen video preprocessing and synchronous broadcasting method and system |
| CN103200396A (en) * | 2013-04-09 | 2013-07-10 | 广东粤铁瀚阳科技有限公司 | Real-time video stream display method 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 |
| 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 |
| CN108134916A (en) * | 2016-12-01 | 2018-06-08 | 北京视联动力国际信息技术有限公司 | A kind of data processing method of 4K terminals and 4K terminals |
| CN109379556A (en) * | 2018-09-30 | 2019-02-22 | 中国船舶重工集团公司第七0九研究所 | Audio-visual system and its working method based on business processing base unit |
| CN109788226A (en) * | 2018-12-26 | 2019-05-21 | 深圳市视晶无线技术有限公司 | One kind flexibly routing many-to-one collaborative HD video transmission method and system |
| CN111813528A (en) * | 2020-07-17 | 2020-10-23 | 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103079088A (en) * | 2012-12-14 | 2013-05-01 | 广东威创视讯科技股份有限公司 | Multi-screen video preprocessing and synchronous broadcasting method and system |
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| CN108134916A (en) * | 2016-12-01 | 2018-06-08 | 北京视联动力国际信息技术有限公司 | A kind of data processing method of 4K terminals and 4K terminals |
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| 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 |
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| 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 |
| CN109788226A (en) * | 2018-12-26 | 2019-05-21 | 深圳市视晶无线技术有限公司 | One kind flexibly routing many-to-one collaborative HD video transmission method and system |
| CN111813528A (en) * | 2020-07-17 | 2020-10-23 | 公安部第三研究所 | Video big data standardization convergence gateway system and method based on task statistical characteristics |
| 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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Effective date of registration: 20141126 Address after: Xi'an City, Shaanxi province Taibai Road 710071 No. 2 Patentee after: Xidian University Address before: 710071 Xi'an Electronic and Science University, two Taibai South Road, Shaanxi, Xi'an Patentee before: Lv Ning |
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Granted publication date: 20141029 Termination date: 20201201 |
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| CF01 | Termination of patent right due to non-payment of annual fee |