CN104967791A - Distributed audio and video transmission control system - Google Patents
Distributed audio and video transmission control system Download PDFInfo
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- CN104967791A CN104967791A CN201510398689.2A CN201510398689A CN104967791A CN 104967791 A CN104967791 A CN 104967791A CN 201510398689 A CN201510398689 A CN 201510398689A CN 104967791 A CN104967791 A CN 104967791A
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Abstract
The invention discloses a distributed audio and video transmission control system. The distributed audio and video transmission control system includes distributed audio and video input nodes, distributed audio and video output nodes, a switch and audio and video display devices; the distributed audio and video input nodes can collect signal sources and are connected with the switch through network cables; and the distributed audio and video output nodes are connected with the switch through network cables and can output audios and videos to the audio and video display devices. The distributed audio and video transmission control system has the advantages of simplicity, high reliability and easiness in upgrade and modification. According to the distributed audio and video transmission control system, signals are subjected to instance IP fluidization at the distributed input nodes, and are converted into signals at the distributed output nodes, and therefore, the number of conversion times is increased, and loss is small, and image quality is more approximate to an original signal level; the POE function of the switch is utilized, so that the power source of the whole system is managed at the switch in a unified manner; the system can be connected into a network through an IP instruction, so that various kinds of video parameters of the input nodes and the output nodes can be controlled, and unified management can be benefitted; IP fluidization is performed on the data, and therefore, the data can be stored and forwarded conveniently.
Description
Technical field
The present invention relates to audio-video signal transmission and process electronic device field, particularly a kind of distributed tones transmission of video control system.
Background technology
In intellectualizing system, calling, distributing, switch of audio-video signal is very important link.The perception of people also major part comes from image and sound, and video and sound have very consequence in communication process, therefore how to transmit and control particularly important.But vision signal is of a great variety, have benefited from consumption market to the high-quality pursuit of vision signal, high definition is progressively popularized, but part specialized market is if the industrial goods such as photoelectricity, engineering projection, video conference are due to the product life cycle etc., also in use simulation, SD system.Therefore, in implementation process, the transmission, conversion, wire rod etc. of various types of signal are abnormal various, and system is complicated greatly, give enforcement, safeguard and bring high cost, and cause compatibility and poor stability, have impact on the cost of intellectualizing system and popularize.
Summary of the invention
The present invention is directed to the conversion of existing audio transmission, wire rod etc. abnormal various, system is complicated greatly, gives enforcement, safeguards and bring high cost, and cause compatibility and poor stability, the cost that have impact on intellectualizing system waits deficiency with universal, provides a kind of distributed tones transmission of video control system.
Technical scheme of the present invention is:
A kind of distributed tones transmission of video control system, comprise distributed tones video input node, distributed tones video frequency output node, switch and audio and video frequency display equipment, described distributed tones video input node can collection signal source, and is connected with switch by netting twine; Described distributed tones video frequency output node to be connected with switch by netting twine and can output sound video to described audio and video frequency display equipment.
As further description of the present invention, described distributed tones video input node comprises distributed VGA input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node, described distributed VGA input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node carry out signal decoding according to the respective standard such as DVI, HDMI, SDI, VGA, VIDEO, and recompile is packaged as IP stream.
Further, described distributed tones video frequency output node comprises distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node, and described distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node carry out signal decoding according to the respective standard such as DVI, HDMI, SDI, VGA, VIDEO.
Further, described switch is more than 100,000,000 switches (comprising gigabit switch), has subtending port and cable interface.
Further, described distributed VGA input node, distributed SDI input node, distributed HDMI input node, distributed DVI input node, distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node have cable interface.
Further, described distributed output node can export any format signal of any distributed input node, and distributed input node and distributed output node resolution sizes can be different, carry out convergent-divergent adaptation by distributed output node.
Further, when described distributed output node change signal source and video source are switched to different input nodes, smooth excessiveness between different pictures, output signal can not be interrupted, consequently external-connection displayer equipment reaches seamless switching effect, without blank screen or blue screen, without flower screen.
Further, described distributed output node and distributed input node all use POE mode to power.
Beneficial effect of the present invention:
1, system of the present invention, greatly simplifies than legacy system;
2, the present invention greatly improves than legacy system reliability: center switching equipment is switch, and each input and output are connected by netting twine.The fault of any one input-output equipment does not affect whole system and runs, and only need to change compromised devices, system reliability is high; Using high definition matrix before improving, all there is electrical connection in any road input and output, easily because the problem of a pipeline equipment causes whole system to be damaged;
3, systematic unity of the present invention uses cheap netting twine, and upgrading only needs to change Inport And Outport Node, and upgrading easily; Legacy system, wiring is complicated, and wire rod is expensive, and sunkens cord due to building construction, subsequent upgrade difficulty;
4, center of the present invention uses switch, and switch all possesses cascade function now, and therefore system extension is very easy to, and legacy system high definition matrix size is fixed, can not cascade, if need upgrading, can only discard;
5, system of the present invention, signal is in distributed input node and IPization, and convert back signal again at distributed output node, conversion times is few, and loss is few; And the system before improving, signal demand repeatedly adjusts so that Long line transmission, carries out multiple conversions to switch at high definition matrix normalization.Decrease conversion times, image quality more approaches primary signal level;
6, system of the present invention uses switch POE function, and the power supply unified management of whole system is in switch.And various Long line transmission device before improving, transducers etc., all need to power alone, and electric power system is complicated, and mains switch needs huge chain of relays management, and cost intensive, system complex, the system open and close time is long, and efficiency is low.
7, system of the present invention, only needs by IP instruction, anywhere access network, gets final product the various video parameters of control inputs node and output node, is conducive to unified management; And needing before improving is arranged to transducer;
8, system of the present invention carries out IP fluidisation, can carry out easily storing and forwarding.
Accompanying drawing explanation
Fig. 1 is traditional mixed video signal switched system structured flowchart;
Fig. 2 is distributed tones video system configuration block diagram of the present invention.
Embodiment
Embodiment:
A kind of distributed tones transmission of video control system, comprise distributed tones video input node, distributed tones video frequency output node, switch and audio and video frequency display equipment, described distributed tones video input node can collection signal source, and is connected with switch by netting twine; Described distributed tones video frequency output node to be connected with switch by netting twine and can output sound video to described audio and video frequency display equipment; Described distributed tones video input node comprises distributed VGA input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node; Described distributed tones video frequency output node comprises distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node; Distributed VGA input node, distributed SDI input node, distributed HDMI input node, distributed DVI input node, distributed VGA output node, distributed SDI output node, distributed HDMI output node, distributed DVI output node and switch all have cable interface; Described switch is 100 m switch, has subtending port; Described distributed output node and distributed input node all use POE mode to power.
The unified netting twine that adopts of the present embodiment connects, the distributed VGA input node of distributed tones video input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node gather video and audio respectively, according to DVI, HDMI, SDI, VGA, VIDEO etc. separately standard carry out signal decoding, and recompile is packaged as IP stream, then transmitted by netting twine, at 100 m switch, place changes, then by the distributed VGA output node of described distributed tones video frequency output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node are according to DVI, HDMI, SDI, VGA, VIDEO etc. separately standard carry out signal decoding, output to corresponding audio and video frequency display equipment, audio and video frequency display equipment carries out audio-video signal reception and display.Described distributed output node can export the signal of any form of any input node, and input node and output node resolution sizes can be different, carry out convergent-divergent adaptation by output node.When described distributed output node change signal source and video source are switched to different input nodes, smooth excessiveness between different pictures, output signal can not be interrupted, in practical application effect, external-connection displayer equipment reaches seamless switching effect, without blank screen or blue screen, without phenomenons such as Hua Ping, respond well.
Claims (8)
1. a distributed tones transmission of video control system, it is characterized in that: comprise distributed tones video input node, distributed tones video frequency output node, switch and audio and video frequency display equipment, described distributed tones video input node can collection signal source, and is connected with switch by netting twine; Described distributed tones video frequency output node to be connected with switch by netting twine and can output sound video to described audio and video frequency display equipment.
2. distributed tones transmission of video control system according to claim 1, it is characterized in that: described distributed tones video input node comprises distributed VGA input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node, described distributed VGA input node, distributed SDI input node, distributed HDMI input node and distributed DVI input node carry out signal decoding according to the respective standard such as DVI, HDMI, SDI, VGA, VIDEO, and recompile is packaged as IP stream.
3. distributed tones transmission of video control system according to claim 1 and 2, it is characterized in that: described distributed tones video frequency output node comprises distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node, described distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node carry out signal decoding according to the respective standard such as DVI, HDMI, SDI, VGA, VIDEO.
4. distributed tones transmission of video control system according to claim 3, is characterized in that: described switch is more than 100,000,000 switches, has subtending port and cable interface.
5. distributed tones transmission of video control system according to claim 3, is characterized in that: described distributed VGA input node, distributed SDI input node, distributed HDMI input node, distributed DVI input node, distributed VGA output node, distributed SDI output node, distributed HDMI output node and distributed DVI output node have cable interface.
6. distributed tones transmission of video control system system according to claim 3, it is characterized in that: described distributed output node can export any format signal of any distributed input node, and distributed input node and distributed output node resolution sizes can be different, carry out convergent-divergent adaptation by distributed output node.
7. distributed tones transmission of video control system system according to claim 3, is characterized in that: smoothing process during described distributed output node change signal, smooth excessiveness between different pictures, output signal can not be interrupted.
8. distributed tones transmission of video control system system according to claim 3, is characterized in that: described distributed output node and described distributed input node all use POE mode to power.
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| CN109819190A (en) * | 2018-12-27 | 2019-05-28 | 中音讯谷科技有限公司 | A kind of node audio video transmission control equipment |
| CN111010616A (en) * | 2019-12-23 | 2020-04-14 | 威创集团股份有限公司 | Audio and video transmission method and system based on IP network |
| CN111050025A (en) * | 2019-12-04 | 2020-04-21 | 深圳市创凯智能股份有限公司 | Audio and video display control method, device and system and computer readable storage medium |
| CN111787293A (en) * | 2020-08-11 | 2020-10-16 | 威创集团股份有限公司 | Video coding system |
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Application publication date: 20151007 |