CN1215961A - Electronic meeting multimedia control system - Google Patents
Electronic meeting multimedia control system Download PDFInfo
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- CN1215961A CN1215961A CN 98113623 CN98113623A CN1215961A CN 1215961 A CN1215961 A CN 1215961A CN 98113623 CN98113623 CN 98113623 CN 98113623 A CN98113623 A CN 98113623A CN 1215961 A CN1215961 A CN 1215961A
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Abstract
A control system for multimedia video conference is composed of video/audio signal sources, matrix switching, audio transmission, sound device, electronic demostration and system control center. With multimedia computer host and according to the hardware configuration and function requirement, three conference modes, three electronic education modes and five entertainment modes can be progammed and preset by text or operation control mode. There are program controlled bidirectional video/audio channels, large-screen display, and storage or print-out for high-fidelity replay and digitalized reproducing. Its advantages are simple structure and easy operation.
Description
The invention belongs to the computer network electronic meeting system, exactly, it is a kind of transmitted in both directions function that has, and carries out the electronic meeting multimedia control system of information interchange and feedback.
At present, be applied to the multifunctional electronic conference chamber of intelligent building, have only the function of one-way transmission.For example: in the time of in session, can only make a speech on the rostrum, one-way transmission information can not exchange feedback above and below the stage; When carrying out telephone instruction, or can only put video recording, put projection, or can only see the lecture contents of closed-circuit television, can not put question to query.When amusement, no matter be to see VCD, or sing karaoke, can only carry out the one-way transmission activity.In a word, this class meeting room can only carry out unidirectional audio or video transmission of Information.That is: have only one-way channel, the information of can not carrying out is exchanged visits.Yet, modern intelligent building, for the exchange of information that satisfies people freely, electronic teaching is lively, entertainment is convenient, the electronic boardroom with transmitted in both directions function that urgently waits in expectation comes out.
Purpose of the present invention just is to overcome the deficiency of prior art, and a kind of employing Computer Multimedia Technology that provides, in conjunction with the parts such as matrix switcher that design and produce voluntarily, three kinds of specialized conference patterns, three kinds of electronic teaching patterns and five kinds of entertainment patterns are set respectively, have video, audio frequency and program control duplex channel, can carry out in real time that letter suffer to exchange and feedback, simple in structure again, easy to operate, be easy to use and electronic meeting multimedia control system that cost performance is high.
Fig. 1 is a system principle diagram of the present invention.
Fig. 2 is a matrix switcher electrical schematic diagram of the present invention.
Fig. 3 is that system of the present invention forms schematic diagram.
From figure one as can be seen: the present invention mainly contains the video/audio information source, and partly [1], matrix switching part [2], the transaudient part of specialized conference [3], sound equipment are provided with 6 major parts altogether such as part [4], electronic teaching demonstration part [5] and System Control Center part [6].
System Control Center part of the present invention [6] has mainly comprised multimedia master control computer, the PVC controller, multi-functional decoder, cyclelog, the power supply o controller, power supply function o controller etc., wherein multi-functional decoder and multimedia master control computer, the PVC controller carries out two-way connection, the control signal that decoder transmits is divided four tunnel outputs, the 1 the tunnel is connected to the input of cyclelog, the 2 the tunnel is connected to 8 control ends that advance 4 video matrix switchers that go out, the 3 the tunnel is connected to 16 control ends that advance the 8 Audio Matrix switchs that go out, and the 4 the tunnel receives the control end of audio-frequency power amplifier.
Multimedia master control computer of the present invention at the configuration and the functional requirement of system hardware of the present invention, is programmed with graphics context mode and picture and text/operation control mode respectively, and the control whole system realizes allomeric function.12 kinds of operational modes in systems soft ware, have been preset, report meeting, videoconference, investigation meeting totally 3 kinds of conference models are wherein arranged, also have TV audio-visual education programme, audio-visual education programme in kind, computer audio-visual education programme totally 3 kinds of audio-visual education programme patterns, and VCD movie theatre, video are play, Karaoke, satellite television totally 5 kinds of entertainment patterns are play in recording, and it is standby to leave a kind of pattern in addition.
In video/audio information source part [1], the present invention is provided with 8 kinds of video equipments, they are respectively colour TV camera, video display instrument, master VTR, main player, video disc player, satellite receiver, DVD player and spare interface etc., has almost taken on all video equipments that appear on the market and be about to appear on the market and has made video source.Video camera be lifted on electronic boardroom the centre, utilize its scan mode or fixed surveillance mode, realize that on-the-spot circumstance is relayed and can also solve reprography hundred plate imagings and export to computer so that storage print.Video signal source is to the invention provides color saturation and all good video image signal of tone.And audio frequency apparatus is except video tape recorder, player, video disk player, DVD player and satellite receiver and video equipment are shared, also be provided with cassette recorder, audio frequency power amplifier output interface and computer etc., audio sources is for the invention provides Hi-Fi stereo audio signal.
Divide video matrix switcher and Audio Matrix switch again at matrix switching part [2].By figure one as can be seen: the video inputs Vin01 to Vin08 of video matrix switcher is connected respectively at the colour TV camera of the video source video output terminals to the video equipment of DVD player etc.The output end vo ut01 to Vout04 of video matrix switcher is connected with the video inputs of the projecting apparatus/projection monitors of video electronic teaching demonstration part [5], video tape recorder/projection monitors, televimonitor, computer etc. respectively.Make video matrix switcher be 8 and advance the 4 vision signal switch operating states that go out.And the audio input end Ain01 to Ain16 of Audio Matrix switch is connected with the main video tape recorder of the audio sources audio output to the audio frequency apparatus of computer etc. respectively.The audio output Aout01 to Aout08 of Audio Matrix switch demonstrates partly with electronic teaching respectively, and the audio input end of video tape recorder, power amplifier input, computer and the stand-by equipment of [5] is connected.Make the Audio Matrix switch be 16 and advance the 8 audio signal switch operating states that go out.Whole work of matrix switching part [2] are the multimedia master control computer in System Control Center part [6] or PVC controller comprehensively under the control all, carry out the automatic switchover of video or audio signal according to the working procedure that sets, finish corresponding work, to satisfy the requirement that system's prime signal switches.
The transaudient part of specialized conference among the present invention [3] mainly includes each 1 of chairman's microphone and control unit thereof, represents the some covers of microphone and control unit thereof (as required), conference system controller etc.All microphones connect with series system by a private cable, carrying out the prime signal through each road control unit mixes, shaping is concentrated and is delivered to system controller speech is compressed processing, single channel output, thereby suppressed the self-excitation phenomena that produces owing to acoustic feedback effectively, guaranteed Hi-Fi speech quality.According to System Control Center part [6] predefined working procedure, chairman's microphone enjoys priority, and represents microphone can ask speech, makes between chairman and representative, representative and the representative, both can make a speech separately, can discuss mutually again, makes the meeting-place very flexible suitable.
Sound equipment of the present invention is provided with part [4] and has mainly comprised sound console, equalizer, audio-frequency power amplifier, main sound box, back audio amplifier and monitoring headpone etc.In order to make sound equipment that part is set, promptly satisfy the multi-functional requirement of electronic meeting, guarantee to reproduce high-quality acoustics again.The present invention is directed to meeting and amusement two big application models and selected two cover stereo sets for use.One cover is the stereo set that is suitable for specialized conference, the another set of stereo set that is suitable for high-fidelity amusement requirement.
Electronic teaching demonstration part of the present invention [5] has mainly comprised audio-visual education programme Demo Computer, video display device, reprography blank, liquid crystal projection apparatus video tape recorder televimonitor etc.When carrying out electronic teaching or academic exchange, in order to satisfy to various material objects the enlarging projection of digest data and colour or black and white negative film, video display instrument and digital single rifle liquid crystal projection apparatus that the present invention has selected for use PANASONIC to produce.This projecting apparatus has three tunnel input input signal paths, and wherein first via RGB input is connected to the input on the projecting apparatus left side from multimedia master control computer output; The second road RGB input is connected to the projecting apparatus input on limit again from audio-visual education programme Demo Computer output; Third Road RGB input is connected to the input of projecting apparatus bottom from any video output terminals of video matrix switcher Vout01 to Vout04.
Adopted two kinds of application models in the present invention: a kind of mini-session that is applied to, the participant is the content on electronics hundred plates intuitively.Another kind is applied to convention, in order to strengthen viewing effect, utilize the gamma camera of meeting room top lifting to aim at that electronic whiteboard videotapes and become doubly and focusing is transported to computer by controls lens, throw in by projecting apparatus again and show, just can reach the effect of killing two birds with one stone, both solve the work of computer data on file, printout, improved the effect of watching again on the spot.
In sum, the present invention has following distinguishing feature:
1, adopts multimedia master control brain comprehensive control technology, realized the combination in any switching of video/audio information source and the electric centralized control of all devices.
2, computer operating system WINDOWS platform, both pictures and texts are excellent, easy and simple to handle, directly perceived, and multiple functional.
3, at 3 types (meeting, audio-visual education programme, amusements) of multi-functional conference room, preset 12 kinds of operational modes, simplified the complicated operation degree greatly, improved operating rate.
4, adopt the specialized conference stereomicrophone system, solved the transaudient self-excitation difficult problem of conference amplification effectively, also optionally simultaneously join division control type microphone or simultaneous interpretation and voting work.
5, utilization reprography blank and liquid crystal projection apparatus and indoor gamma camera use in conjunction pattern had both solved storage and the printout of computer to information on the reprography blank, had improved the viewing effect of convention again.
6, select single rifle liquid crystal projection apparatus of band Intelligent Compression projection pattern for use, both can satisfy the amplification of computer picture and text signal and reproduce.Can satisfy the requirement of the large scale display function of high definition video and audio-visual education programme signal again.
7, adopt constant-pressure type power amplifier and be equipped with the lifting loudspeaker and make the meeting public address; select for use digital 5+1 to surpass and make cultural amusement public address around facility; form the independent public address control model of two covers; both can guarantee the uniformity requirement of meeting sound field, can obtain the promising result that high-fidelity playback and digital source of sound reproduce again.Below in conjunction with accompanying drawing embodiment the present invention is advanced an explanation.
Figure one is a system principle diagram of the present invention.
Figure two is matrix switcher electrical schematic diagrams of the present invention.
Figure three is that system of the present invention forms schematic diagram.
The connection of system and explanation are as previously mentioned.The course of work of the present invention is such.Set a kind of mode of operation (in 12 a kind of) according to actual conditions.Behind the mode initialization, system just enters the predetermined set state, automatically switches to required video/audio information source and required control power supply then, start-up system work.After the power-on, multimedia master control computer can directly enter system of the present invention and welcome the interface, the operator imports corresponding proper password then, and system just enters main interface, function of tonic chord key choice box, video source name box, video image frame, function key frame, functional key frame etc. occur.Operation part is mainly divided and is made up around the function selecting frame.Function of tonic chord key choice box has comprised acoustic image processing, audio frequency switching, video switch, power supply control, front-end control, mode switch again, has illustrated, projection control, system are provided with etc.When by acoustic image processing capacity key, the child-operation interface that acoustic image is handled appearring in the operating function frame: pounces on and catch image, memory image, played-back image, broadcast image, plays sound, 6 functions such as recorded voice, stored sound.As a same reason, can carry out the combination in any of Voice ﹠ Video information source by audio frequency switching and video switch key.Press the power supply of power control key control of video/audio frequency apparatus and light and select, the operating state of 32 relays of control.Just can control each function of front end gamma camera The Cloud Terrace and camera lens by the front-end control key.Just can select required mode of operation by mode switching key.Just can obtain the required picture and text explanation of system by illustrating key.Be used for controlling all vision signals of projection by projection control and switch input.By system key is set and just can carries out that authority is selected and the subfunction menu must be provided with, submenu comprises four functions such as operating personnel, control model, MODE name and power supply title again.The PVC controller is installed on the three-picture master station, and with manually control control, its effect is a safeguards system in the offline condition operation work that does as usual, and it can only carry out video/audio and switch, power supply control, model selection, work such as The Cloud Terrace camera lens operation.Multi-functional decoder distributes and carries out two-way the connection with multimedia master control computer with PVC, transmits control signal by the decoding to the master control order, divides 4 tunnel outputs, wherein the 1 the tunnel receives the cyclelog input, then the required power supply of selective system.The 2 the tunnel receives 8 advances the 4 video matrix switcher control ends that go out, and selects corresponding video signals.The 3 the tunnel receives 16 advances the 8 Audio Matrix switch control ends that go out, and chooses required audio signal.The 4 the tunnel receives audio power device control end, selects suitable power amplification.
Claims (3)
1, a kind of electronic meeting multimedia control system, mainly contain video/audio information source part [1], matrix switching part [2], the transaudient part of specialized conference [3], sound equipment is provided with part [4], electronic teaching demonstration part [5] and System Control Center part 6 major parts such as [6], it is characterized in that System Control Center part [6] has mainly comprised multimedia master control computer, the PVC controller, multi-functional decoder, cyclelog, the power supply o controller, power supply function o controller etc., wherein multi-functional decoder and multimedia master control computer, the PVC controller carries out two-way connection, the control signal that decoder transmits is divided four tunnel outputs, the 1 the tunnel is connected to the input of cyclelog, the 2 the tunnel is connected to 8 control ends that advance 4 video matrix switchers that go out, the 3 the tunnel is connected to 16 control ends that advance the 8 Audio Matrix switchs that go out, and the 4 the tunnel receives the control end of audio-frequency power amplifier.
2, electronic meeting multimedia control system according to claim 1 is characterized in that:
The video inputs Vin01 to Vin08 of the video matrix switcher of A, matrix switching part [2] links to each other with the color video camera of the video source video output terminals to video equipments such as DVD respectively; The video output terminals Vout01 to Vout04 of video matrix switcher links to each other with the projecting apparatus of electronic teaching demonstration part [5] video inputs to equipment such as computers respectively; Video matrix switcher is 8 and advances 4 types of attachment that go out;
The audio input end Vin01 to Vin16 of the Audio Matrix switch of B, matrix switching part [2] links to each other with the main video tape recorder of the audio sources audio output to audio frequency apparatuses such as computers respectively; The audio output Vout01 to Vout08 of Audio Matrix switch links to each other with the video tape recorder of electronic teaching demonstration part [5] audio input end to stand-by equipment respectively; The Audio Matrix switch is 16 and advances 8 types of attachment that go out.
3, electronic meeting multimedia control system according to claim 1 and 2 is characterized in that: single rifle liquid crystal projection apparatus.This projecting apparatus has three road input signal paths, and wherein first via RGB input is connected to the input on the projecting apparatus left side from multimedia master control computer output; The second road RGB input is connected to the projecting apparatus input on limit again from audio-visual education programme Demo Computer output; Third Road RGB input is connected to the input of projecting apparatus bottom from any video output terminals of video matrix switcher Vout01 to Vout04.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113623 CN1215961A (en) | 1998-07-06 | 1998-07-06 | Electronic meeting multimedia control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113623 CN1215961A (en) | 1998-07-06 | 1998-07-06 | Electronic meeting multimedia control system |
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| CN1215961A true CN1215961A (en) | 1999-05-05 |
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| CN 98113623 Pending CN1215961A (en) | 1998-07-06 | 1998-07-06 | Electronic meeting multimedia control system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024038A1 (en) * | 2007-08-22 | 2009-02-26 | Huawei Technologies Co., Ltd. | A method for realizing sub-session, network system and multimedia processor |
| CN100512127C (en) * | 2005-02-28 | 2009-07-08 | 索尼株式会社 | Connection controller, communication system, and connection control method |
| CN102308597A (en) * | 2009-02-03 | 2012-01-04 | 方头技术有限公司 | Conference microphone system |
| CN101783919B (en) * | 2009-12-10 | 2012-06-13 | 华平信息技术股份有限公司 | Round-robin method based on video conference |
| CN101026733B (en) * | 2006-02-21 | 2012-09-05 | 富士施乐株式会社 | Electronic conference control device, electronic conference assistance method |
| CN102905120A (en) * | 2012-11-05 | 2013-01-30 | 北京真视通科技股份有限公司 | Method for synchronizing screens in different places for large-screen splicing system |
| CN103024340A (en) * | 2012-12-07 | 2013-04-03 | 李云鹏 | Intelligent conference system |
| CN105934936A (en) * | 2013-11-26 | 2016-09-07 | 微软技术许可有限责任公司 | Controlling voice composition in conference |
-
1998
- 1998-07-06 CN CN 98113623 patent/CN1215961A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100512127C (en) * | 2005-02-28 | 2009-07-08 | 索尼株式会社 | Connection controller, communication system, and connection control method |
| CN101026733B (en) * | 2006-02-21 | 2012-09-05 | 富士施乐株式会社 | Electronic conference control device, electronic conference assistance method |
| WO2009024038A1 (en) * | 2007-08-22 | 2009-02-26 | Huawei Technologies Co., Ltd. | A method for realizing sub-session, network system and multimedia processor |
| CN102308597A (en) * | 2009-02-03 | 2012-01-04 | 方头技术有限公司 | Conference microphone system |
| CN102308597B (en) * | 2009-02-03 | 2014-09-17 | 方头技术有限公司 | Conference microphone system |
| CN101783919B (en) * | 2009-12-10 | 2012-06-13 | 华平信息技术股份有限公司 | Round-robin method based on video conference |
| CN102905120A (en) * | 2012-11-05 | 2013-01-30 | 北京真视通科技股份有限公司 | Method for synchronizing screens in different places for large-screen splicing system |
| CN102905120B (en) * | 2012-11-05 | 2016-12-07 | 北京真视通科技股份有限公司 | Large-screen splicing system strange land screen synchronization method |
| CN103024340A (en) * | 2012-12-07 | 2013-04-03 | 李云鹏 | Intelligent conference system |
| CN105934936A (en) * | 2013-11-26 | 2016-09-07 | 微软技术许可有限责任公司 | Controlling voice composition in conference |
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