CN2927177Y - Multi-path audio-video processing system - Google Patents
Multi-path audio-video processing system Download PDFInfo
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- CN2927177Y CN2927177Y CN 200620034818 CN200620034818U CN2927177Y CN 2927177 Y CN2927177 Y CN 2927177Y CN 200620034818 CN200620034818 CN 200620034818 CN 200620034818 U CN200620034818 U CN 200620034818U CN 2927177 Y CN2927177 Y CN 2927177Y
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Abstract
The utility model discloses a multiplex audio and video processing system, comprising a multiplex audio and video processor, an AV display cluster and a computer. The multiplex audio and video processor is connected with the computer via RS-232C interface and connected with the AV display cluster via the AV transmission line, wherein the multiplex audio and video processor comprises a system bus, an audio bus, a video bus, a CPU control module, at least a multiplex audio input module, at least a multiplex video input module, at least a multiplex audio output module, at least a multiplex video output module and at least an encoding drive module. The utility model makes the computer as the main body and is supplemented by a multiplex audio and video processor, which realizes the shifting, recording and transmitting of multiplex audio and video signals and can display synchronously a plurality groups of audio and video with friendly human-computer interface, simple system, low cost, great reliability, flexible utilization and great adaptability.
Description
Technical field
The utility model relates to a kind of audio frequency and video treating apparatus, particularly relates to a kind of multichannel voice frequency processing system for video.
Background technology
Existing audio and video matrix switch such as AD2150 matrix switching/control system, be not rely on the autonomous system that computing machine is controlled, when computing machine is not popularized in early days, the audio and video matrix switch is that a kind of audio frequency and video of extensive employing are handled the switch control system, has very strong manipulation function, weak point is the dull and operation inconvenience of operation interface, handle the novel audio frequency and video processing switch control system that the switch control system combines so computing machine occurred with traditional audio frequency and video, to solve limitation and the dull problem of interface that original system is controlled, but so, original in fact redundancy of controlling partly, in some occasion that must adopt computing machine to control, employing audio and video matrix switch adds the system of computer combined, system complex, the cost height, its application is restricted.
On the other hand on systemic-function, digitizing multichannel audio-video frequency DVR such as ST-HD digital hard disc video recorder, mainly be to utilize hard disc of computer to record, record a video, at present under the few situation of way (generally being ten six the tunnel) to record, record a video with a hard disc of computer be feasible, but for a computing machine, under the situation that does not increase utility appliance, multichannel output only is many picture outputs, can't resolve the problem that a few group of pictures audio frequency and video whiles is arranged simultaneously, show synchronously, and relatively limiting to aspect service item and the operation interface.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of based on computing machine, be equipped with the multichannel voice frequency video processor, realize the switching of multichannel audio-video frequency signal, record and transmission, the operation of this system and control are by computer realization, the multichannel audio-video frequency Signal Processing is finished by the multichannel voice frequency video processor, with the computer interface close friend, easy to operate advantage and the multichannel voice frequency video processor real-time aspect the AV signal processing, agility combines, and constitutes structural reduction, with low cost but the audio frequency and video disposal system of complete function.
Goal of the invention of the present utility model is achieved through the following technical solutions: the multichannel voice frequency processing system for video, it is by the multichannel voice frequency video processor, AV display group and computing machine are formed, the multichannel voice frequency video processor is connected with computing machine and is connected with AV display group by the AV transmission line by the RS-232C interface, wherein, the multichannel voice frequency video processor comprises system bus, audio-frequency bus, video bus, the CPU control module, at least one multichannel voice frequency load module, at least one multi-channel video load module, at least one multichannel voice frequency output module, at least one multi-channel video output module and at least one coding driver module, the CPU control module is by system bus and multichannel voice frequency load module, the multi-channel video load module, the multichannel voice frequency output module, the multi-channel video output module is connected with the coding driver module, the multichannel voice frequency load module is connected with the multichannel voice frequency output module by audio-frequency bus, and the multi-channel video load module is connected with the multi-channel video output module by video bus.
System bus comprises data bus, address bus and control bus.
The CPU control module comprises single-chip microcomputer, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit, RS-485 change-over circuit, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit and RS-485 change-over circuit are connected with single-chip microcomputer, and the output of address bus driver, data bus driver and control bus driver is connected with system bus.
The multichannel voice frequency input circuit comprises preamplifying circuit and matrix change-over switch composition, the input end of preamplifying circuit connects the external audio input signal, the input end of output terminal connection matrix change-over switch, the output of matrix change-over switch connects audio-frequency bus, and the matrix change-over switch is controlled by described CPU control module.
The multichannel voice frequency output module comprises preamplifying circuit and power amplification circuit, and the input end of preamplifying circuit is connected with audio-frequency bus, and output terminal is connected with the input end of power amplification circuit, and the output of power amplification circuit connects the external audio terminal.
The multi-channel video load module comprises preamplifying circuit and matrix change-over switch, the input end of preamplifying circuit connects outer video signal, output terminal is connected with the input end of matrix change-over switch, the output of matrix change-over switch connects video bus, and the matrix change-over switch is controlled by described CPU control module.
The multi-channel video output module comprises preamplifying circuit and character supercircuit, the input end of preamplifying circuit connects video bus, the input of low 4 tunnel output concatenation character supercircuits of preamplifying circuit, the high road output of the output of character supercircuit and preamplifying circuit is connected the external video terminal.
Drive output module and comprise preamplifying circuit and back level power driving circuit, the input end of preamplifying circuit connects data bus, and output connects the input end of back level power driving circuit, and back level power driving circuit output is than the independent switching value of heavy load.
1～n road audio frequency and video input signal, output 1～m group AV signal after the multichannel voice frequency video processor is handled, the DISPLAY ORDER of every group of AV signal can be set arbitrarily, and any one road AV signal can be gathered, be stored to computing machine, also can carry out the transmission of audio frequency and video image by network.The function of multichannel voice frequency video processor is exactly under the controlling of computing machine, finishes switching, record and the transmission of audio-video signal.
The multichannel voice frequency video processor uses RS-232C interface and computing machine communication, computing machine is gathered any switching demonstration of storage, the many groups of multichannel to the multichannel audio-video frequency signal under the control of software, in case need access wherein arbitrary road audio-video signal, then go up demonstration by computer controlled built in computing machine or AV display group, computing machine carries out Network Transmission by the RS-485 interface in case of necessity.
Advantage of the present utility model is: manipulation function is perfect, and a few group of pictures audio frequency and video show simultaneously synchronously, man-machine interface close friend, and system is brief, and cost is low, the reliability height, utilization is flexible, and adaptability is strong.
Description of drawings
Fig. 1 block diagram of system
Fig. 2 multichannel audio-video frequency processor composition frame chart
Fig. 3 CPU control module block diagram
Fig. 4 multichannel voice frequency load module block diagram
Fig. 5 multichannel voice frequency output module block diagram
Fig. 6 multi-channel video load module block diagram
Fig. 7 multi-channel video output module block diagram
Fig. 8 driver module block diagram of encoding
Embodiment
Further describe the technical solution of the utility model below in conjunction with accompanying drawing: as Fig. 1, the multichannel voice frequency processing system for video, it is made up of multichannel voice frequency video processor, AV display group and computing machine, and the multichannel voice frequency video processor is connected with computing machine and is connected with AV display group by the AV transmission line by the RS-232C interface.
As Fig. 2, the multichannel voice frequency video processor comprises system bus, audio-frequency bus, video bus, the CPU control module, the multichannel voice frequency load module, the multi-channel video load module, the multichannel voice frequency output module, multi-channel video output module and coding driver module, the CPU control module is by system bus and multichannel voice frequency load module, the multi-channel video load module, the multichannel voice frequency output module, the multi-channel video output module is connected with the coding driver module, the multichannel voice frequency load module is connected with the multichannel voice frequency output module by audio-frequency bus, and the multi-channel video load module is connected with the multi-channel video output module by video bus.
In the present embodiment, described " multichannel " is 8 the tunnel, multichannel voice frequency load module/multichannel voice frequency output module and multi-channel video load module/supporting use of multi-channel video output module, combination multi-to-multi road audio frequency load module/multichannel voice frequency output module can form different product lines with multi-channel video load module/multi-channel video output module, and its basic configuration is 8 road audio-video processing systems.
System bus comprises data bus, address bus and control bus.
As Fig. 3, the CPU control module comprises single-chip microcomputer, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit, RS485 change-over circuit, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit and RS-485 change-over circuit are connected with single-chip microcomputer, and the output of address bus driver, data bus driver and control bus driver is connected with system bus.
The CPU module is the control maincenter of whole multichannel voice frequency video processor, it is responsible for whole multichannel audio-video frequency switch control and management work, it is by RS-232C bus and compunication, and the signal that receiving computer is sent becomes corresponding order and responsible execution to the conversion of signals of receiving; It also provides R8-485 interface for other expansion equipment (as: demoder, warning gatherer etc.).
As Fig. 4, the multichannel voice frequency load module comprises preamplifying circuit and matrix change-over switch composition, the input end of preamplifying circuit connects the external audio input signal, the input end of output terminal connection matrix change-over switch, the output of matrix change-over switch connects audio-frequency bus, and the matrix change-over switch is controlled by described CPU control module.
The multichannel voice frequency load module is by 1-8 BNC input audio signal, by preamplifying circuit input signal is amplified, through the sound signal input matrix change-over switch of amplifying, through of the control of CPU module to the matrix change-over switch, can the input any 1 road signal switch to any 1 the road or multichannel output on 8 road audio-frequency bus of motherboard
As Fig. 5, the multichannel voice frequency output module comprises preamplifying circuit and power amplification circuit, and the input end of preamplifying circuit is connected with audio-frequency bus, and output terminal is connected with the input end of power amplification circuit, and the output of power amplification circuit connects the external audio terminal.
The multichannel voice frequency output module is from 8 road audio-frequency bus input audio signals of motherboard, by preamplifying circuit input signal is amplified, a level low-power amplifier carries out power amplification to it after the warp again, sends the sound signal with certain power from 1-8 road BNC head.
As Fig. 6, the multi-channel video load module comprises preamplifying circuit and matrix change-over switch, the input end of preamplifying circuit connects outer video signal, output terminal is connected with the input end of matrix change-over switch, the output of matrix change-over switch connects video bus, and the matrix change-over switch is controlled by described CPU control module.
The multi-channel video load module is by 1-8 BNC incoming video signal, amplify by per 1 road signal of preamplifying circuit input, through the vision signal input matrix change-over switch (50M bandwidth) of amplifying, through of the control of CPU module, can any 1 road or the multichannel that any 1 road signal of input switches among the delivery outlet 1-16 be outputed on 16 road video buss of motherboard the matrix change-over switch
As Fig. 7, the multi-channel video output module comprises preamplifying circuit and character supercircuit, the input end of preamplifying circuit connects video bus, the input of the low path output concatenation character supercircuit of preamplifying circuit, the high road output of the output of character supercircuit and preamplifying circuit is connected the external video terminal.
The multi-channel video output module is from 1-8 (or 9-16) the road video bus incoming video signal of motherboard, by preamplifying circuit per 1 road input signal being carried out prime amplifies, wherein 75 Ω vision signals are directly exported by the NBC head in 4 (4-8 road or 13-18 road) road, back, and preceding 4 (1-4 or 9-13) road through the character supercircuit vision signal is carried out the character stack again after the output of BNC head is superimposed with 75 Ω vision signals of character (in/English).
As Fig. 8, drive output module and comprise preamplifying circuit and back level power driving circuit, the input end of preamplifying circuit connects data bus, and output connects the input end of back level power driving circuit, and back level power driving circuit output is than the independent switching value of heavy load.
The driving output module obtains 1-8 circuit-switched data signal from the data bus of motherboard, by preamplifying circuit each road input signal is amplified, and drives relay through amplifying signal, makes it to export the independent switching value of 8 energy bands than heavy load.
Claims (8)
1, the multichannel voice frequency processing system for video, it is characterized in that: it is by the multichannel voice frequency video processor, AV display group and computing machine are formed, the multichannel voice frequency video processor is connected with computing machine and is connected with AV display group by the AV transmission line by the RS-232C interface, wherein, the multichannel voice frequency video processor comprises system bus, audio-frequency bus, video bus, the CPU control module, at least one multichannel voice frequency load module, at least one multi-channel video load module, at least one multichannel voice frequency output module, at least one multi-channel video output module and at least one coding driver module, the CPU control module is by system bus and multichannel voice frequency load module, the multi-channel video load module, the multichannel voice frequency output module, the multi-channel video output module is connected with the coding driver module, the multichannel voice frequency load module is connected with the multichannel voice frequency output module by audio-frequency bus, and the multi-channel video load module is connected with the multi-channel video output module by video bus.
2, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described system bus comprises data bus, address bus and control bus.
3, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described CPU control module comprises single-chip microcomputer, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit, RS-485 change-over circuit, address bus driver, data bus driver, control bus driver, RS-232C change-over circuit and RS-485 change-over circuit are connected with single-chip microcomputer, and the output of address bus driver, data bus driver and control bus driver is connected with system bus.
4, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described multichannel voice frequency load module comprises preamplifying circuit and matrix change-over switch composition, the input end of preamplifying circuit connects the external audio input signal, the input end of output terminal connection matrix change-over switch, the output of matrix change-over switch connects audio-frequency bus, and the matrix change-over switch is controlled by described CPU control module.
5, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described multichannel voice frequency output module comprises preamplifying circuit and power amplification circuit, the input end of preamplifying circuit is connected with audio-frequency bus, output terminal is connected with the input end of power amplification circuit, and the output of power amplification circuit connects the external audio terminal.
6, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described multi-channel video load module comprises preamplifying circuit and matrix change-over switch, the input end of preamplifying circuit connects outer video signal, output terminal is connected with the input end of matrix change-over switch, the output of matrix change-over switch connects video bus, and the matrix change-over switch is controlled by described CPU control module.
7, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described multi-channel video output module comprises preamplifying circuit and character supercircuit, the input end of preamplifying circuit connects video bus, the input of the low path output concatenation character supercircuit of preamplifying circuit, the high road output of the output of character supercircuit and preamplifying circuit is connected the external video terminal.
8, multichannel voice frequency processing system for video according to claim 1, it is characterized in that: described driving output module comprises preamplifying circuit and back level power driving circuit, the input end of preamplifying circuit connects data bus, output connects the input end of back level power driving circuit, and back level power driving circuit output is than the independent switching value of heavy load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034818 CN2927177Y (en) | 2006-07-05 | 2006-07-05 | Multi-path audio-video processing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034818 CN2927177Y (en) | 2006-07-05 | 2006-07-05 | Multi-path audio-video processing system |
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| CN2927177Y true CN2927177Y (en) | 2007-07-25 |
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| CN 200620034818 Expired - Fee Related CN2927177Y (en) | 2006-07-05 | 2006-07-05 | Multi-path audio-video processing system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013189179A1 (en) * | 2012-06-19 | 2013-12-27 | 华为技术有限公司 | Mosaic video display method, and display control device and terminal |
| CN104580935A (en) * | 2015-01-17 | 2015-04-29 | 深圳市索飞翔科技有限公司 | HDMI audio/video switching device |
| CN104602174A (en) * | 2015-01-09 | 2015-05-06 | 易程（苏州）智能系统有限公司 | Four-path audio output system based on eight-bit single chip microcomputer |
| CN105007133A (en) * | 2015-06-16 | 2015-10-28 | 广州市番禺区西派电子电器厂（普通合伙） | DCI digital multi-sound-source broadcasting system |
| CN105681682A (en) * | 2016-01-19 | 2016-06-15 | 广东威创视讯科技股份有限公司 | Video data transmission method and system |
| CN107577633A (en) * | 2017-07-31 | 2018-01-12 | 彩虹无人机科技有限公司 | A kind of unmanned aerial vehicle onboard Mission Management Computer |
-
2006
- 2006-07-05 CN CN 200620034818 patent/CN2927177Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013189179A1 (en) * | 2012-06-19 | 2013-12-27 | 华为技术有限公司 | Mosaic video display method, and display control device and terminal |
| CN104602174A (en) * | 2015-01-09 | 2015-05-06 | 易程（苏州）智能系统有限公司 | Four-path audio output system based on eight-bit single chip microcomputer |
| CN104580935A (en) * | 2015-01-17 | 2015-04-29 | 深圳市索飞翔科技有限公司 | HDMI audio/video switching device |
| CN104580935B (en) * | 2015-01-17 | 2018-07-06 | 深圳市索飞翔科技有限公司 | HDMI audio and video switching devices |
| CN105007133A (en) * | 2015-06-16 | 2015-10-28 | 广州市番禺区西派电子电器厂（普通合伙） | DCI digital multi-sound-source broadcasting system |
| CN105681682A (en) * | 2016-01-19 | 2016-06-15 | 广东威创视讯科技股份有限公司 | Video data transmission method and system |
| CN105681682B (en) * | 2016-01-19 | 2019-06-14 | 广东威创视讯科技股份有限公司 | Method of transmitting video data and system |
| CN107577633A (en) * | 2017-07-31 | 2018-01-12 | 彩虹无人机科技有限公司 | A kind of unmanned aerial vehicle onboard Mission Management Computer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070725 Termination date: 20150705 |
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| EXPY | Termination of patent right or utility model |