CN101662642A - Method for directly introducing real-time monitoring images into video conference - Google Patents
Method for directly introducing real-time monitoring images into video conference Download PDFInfo
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Abstract
The invention discloses a method for directly introducing real-time monitoring images into a video conference, which comprises the following steps that: (1) each non-chairperson video conference terminal examines the real-time monitoring images respectively, selects important real-time monitoring images and reports PU monitoring image addresses of the important real-time monitoring images to a chairperson video conference terminal, and the chairperson video conference terminal examines and evaluates the PU monitoring image addresses and screens out the monitoring images to be broadcasted; (2)the chairperson video conference terminal sends the PU monitoring image addresses corresponding to the monitoring images to be broadcasted to an MCU, and the MCU is controlled to access the corresponding PU according to the addresses; and (3) the chairperson video conference terminal controls the MCU to establish a media channel with the PU so that the MCU acquires a media stream, and broadcasts or forwards the media stream to video conference terminals of each meeting place. By adopting the method, the important real-time monitoring images reported by each branch meeting place can be quicklyand orderly introduced into the video conference, the definition and the low time delay of the introduced monitoring images are ensured, and the method has an extensive application prospect in an emergency command video conference system.
Description
Technical field
The present invention relates to the integration technology field of video conference, monitoring (fixed network move) system, relate in particular to a kind of method of real-time monitoring images directly being introduced video conference.
Background technology
The development of current information-intensive society has proposed very high requirement to communication, and people have not satisfied simple simon says sound and text communication, but the multimedia communication that hope integrates voice, writings and image.This be relay newspaper, phone, fax and Email (E-MAIL) afterwards, another new means of communication.Video conferencing system is exactly one of this novel means of communication, and it can point-to-point communication, also communication that can be multi-multipoint.It has carried multiple media information on same transmission line: video, audio frequency and data etc., realize the multiple spot real-time, interactive communications, simultaneously also different location participant's active situation, conference content and various file can be presented in each sub-venue with the form of visual news, this be a kind of rapidly and efficiently, the new communication service of growing, extensive use.
Video conferencing system mainly by video conference terminal, multipoint control unit (MultipointControl Unit, MCU), channel (network) and control and management software forms.
Wherein, the major function of video conference terminal is: finish collection of video signal, editing and processing and show output, collection, editing and processing and the output of audio signal, the compressed encoding and the decoding of video/audio digital signal, the compressed bit stream via line interface that will meet international standard is at last delivered to channel, or from channel standard compression code stream via line interface is delivered to the terminal.
MCU is the key equipment of video conferencing system, and its major function is that video, voice and data-signal are switched, and for example the picture signal that is sent to MCU meeting-place spokesman is switched to all meeting-place; For voice signal, if simultaneously several speeches are arranged, can carry out mixed processing to them, select the highest audio signal, switch to other meeting-place.
Simultaneously, along with the progress in epoch, living standards of the people improve constantly, and safety also becomes the topic that people are concerned about more, thereby the video monitoring technology is also arisen at the historic moment.Present video monitoring system is made up of client unit (CU), monitoring business management platform, streaming media server and front monitoring front-end (PU).Wherein, streaming media server provides the nucleus equipment of streaming media service, mainly is responsible for video recording preservation, the real-time media stream of Media Stream and transmits and the control of code stream load balancing; PU is responsible for the collection of monitor image signal, comprises wired PU and wireless PU, exports fixed network monitoring code stream and mobile monitor code stream respectively.
At present, above-mentioned video conference and video monitoring technology are all very ripe, a lot of convenience are provided for people's work and life, growing along with people's demand, existing correlation technique has realized that video conference terminal independently checks the monitoring image of self-monitoring system, but monitoring image is introduced video conference is still a difficult problem.For example, in some big emergency commands such as flood-fighting are used, a plurality of sub-venues can't be reported the important real-time monitoring images that independently views to Chair site simultaneously, realize parallel processing (situation of reporting simultaneously when the multiple spot accident takes place) by Chair site, and Chair site can't carry out orderly management to the single or multiple real-time monitoring images that transmit below.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of real-time monitoring images directly being introduced video conference.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of real-time monitoring images is directly introduced the method for video conference, may further comprise the steps:
(1) each non-chairman's video conference terminal is checked different real-time monitoring images respectively, select important real-time monitoring images, the front monitoring front-end monitoring image reporting address that it is corresponding is given chairman's video conference terminal, according to described address real-time monitoring images is checked and assessed by it, filter out the real-time monitoring images that needs broadcasting;
(2) described chairman's video conference terminal sends to multipoint control unit with the described front monitoring front-end monitoring image address of the real-time monitoring images correspondence of broadcasting that needs, and the control multipoint control unit inserts corresponding front monitoring front-end by this address as virtual video conference terminal;
(3) described chairman's video conference terminal control multipoint control unit is set up media channel with described front monitoring front-end, makes multipoint control unit obtain the Media Stream of real-time monitoring images by described media channel and this Media Stream is broadcasted or is transmitted to the video conference terminal in each meeting-place.
Said method also comprises: after the video conference terminal in (4) described each meeting-place receives the broadcasting of described multipoint control unit or transmits the Media Stream that comes, this Media Stream back of decoding is play.
In the above-mentioned steps (1), the method of described non-chairman's viewing monitoring images by video session terminal is: described non-chairman's video conference terminal obtains up-to-date front monitoring front-end tabulation by electronic program guide server from the monitoring business management platform, therefrom select online front monitoring front-end, set up media channel and obtain the Media Stream of real-time monitoring images by this media channel according to the front monitoring front-end picture control address of correspondence and described front monitoring front-end.
In the above-mentioned steps (1), described non-chairman's video conference terminal sends to chairman's video conference terminal by point-to-point mode or by the multipoint control unit pass-through mode with described front monitoring front-end monitoring image address.
In the above-mentioned steps (4), from the wired monitoring front end, then described video conference terminal adopts fixed network monitoring TS (Transport Stream--transmits stream, a kind of media data flow packing standard) code stream mode to decode to it as if described Media Stream; If described Media Stream is from the wireless monitor front end, then described video conference terminal adopts mobile monitor ISMA (Internet Streaming MediaAlliance--Internet Streaming Media alliance refers to a kind of media data flow packing standard that this is organized to set up) code stream mode to decode to it.
In the above-mentioned steps (3), if described front monitoring front-end is the wireless monitor front end, then this front monitoring front-end adopts the fixed network monitoring to transmit in addition to its Media Stream and is uploaded to described multipoint control unit after stream code stream mode is encoded; Simultaneously, in the described step (4), described video conference terminal adopts the fixed network monitoring to transmit stream code stream mode to its received Media Stream and decodes.
In the said method, described front monitoring front-end monitoring image address comprises the front monitoring front-end address of corresponding monitoring image and the GUID channel information of monitoring image.
The present invention with both economical form (do not rely on expensive streaming media server directly and PU set up media channel), realized real-time monitoring images is introduced having the following advantages the purpose of video conference:
1) the present invention has realized MCU and video conference terminal to the obtaining rapidly and accurately of real-time monitoring images by transmitting based on PU monitoring image address, makes that the function of checking, transmit and introduce in order video conference rapidly to single or multiple important real-time monitoring images realizes that key is broken through;
2) the present invention's employing is taken control MCU as the leading factor with chairman's video conference terminal and is directly also directly transmitted or be broadcast to each meeting-place from the Media Stream of PU acquisition real-time monitoring images, MCU need not carry out secondary coding-decoding, guaranteed the definition and the low delay of the real-time monitoring images introduced, and taken the simplicity that has increased client's operation as the leading factor with chairman's terminal.
In sum, adopt the present invention, the important real-time monitoring images that each sub-venue can be reported is introduced video conference rapidly and orderly, and wide application prospect is arranged in the emergency command video conferencing system.
Description of drawings
Fig. 1 right and wrong chairman video conference terminal reports the schematic diagram of PU monitoring image address to chairman's video conference terminal;
Fig. 2 is the specific implementation method flow diagram of Fig. 1;
Fig. 3 is that chairman's video conference terminal passes to PU monitoring image address MCU and controls the schematic diagram that MCU directly transmits corresponding Media Stream;
Fig. 4 is the specific implementation method flow diagram of Fig. 3.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments:
Core concept of the present invention is: at first, PU monitoring image address is passed to chairman's video conference terminal by non-chairman's video conference terminal, by chairman's video conference terminal it is passed to MCU again, thereby realize accurate location and transmission the PU real-time monitoring images; Then, take control MCU as the leading factor with chairman's video conference terminal corresponding PU is inserted video conference as the virtual video conference terminal, and make MCU set up media channel to obtain Media Stream, and then carry out the broadcasting and the forwarding of Media Stream with corresponding PU.Described PU monitoring image address comprises the PU address of corresponding monitoring image and the GUID channel information of monitoring image.To divide two processes to describe respectively below:
I, see also non-chairman's video conference terminal shown in Figure 1 and report the process of PU monitoring image address, be specially to chairman's video conference terminal:
101, each non-chairman's video conference terminal is (in the present embodiment, the non-chairman's video conference terminal that carries out PU monitoring image reporting address comprises the video conference terminal of sub-venue one and sub-venue two) obtain the PU tabulation by related art method respectively, check real-time monitoring images, therefrom filter out the real-time monitoring images that important needs report.
102, the PU monitoring image address of one or more important real-time monitoring images correspondence of separately selected needs being reported of sub-venue one and sub-venue two sends to chairman's video conference terminal by point-to-point mode or by the MCU pass-through mode.
103, chairman's video conference terminal is behind the PU monitoring image address that receives one or more important real-time monitoring images correspondence that different sub-venues transmit, the direct mode by similar internet address link, directly check according to each PU monitoring image address from the Media Stream of PU acquisition real-time monitoring images, finish the preview and the assessment of one or more important real-time monitoring images that each sub-venue is transmitted apace, filter out the real-time monitoring images that to broadcast.
See also Fig. 2, this figure is depicted as the detailed implementation method of said process:
201, non-chairman's video conference terminal is by EPG server access or the direct EPG menu access access monitoring Business Management Platform by its configuration, by obtaining the PU tabulation behind the authentication, therefrom select online PU, obtain the PU monitoring image address of this PU correspondence.
202, non-chairman's video conference terminal is set up media channel according to above-mentioned PU monitoring image address with corresponding PU.
203, non-chairman's video conference terminal directly obtains the Media Stream of the real-time monitoring images of corresponding PU by media channel, to its decoding and output on the television set and check.
204, after non-chairman's video conference terminal is checked, the real-time monitoring images that selection need report, the PU monitoring image address that it is corresponding is by H.245 passing to MCU after the protocol packing.
205, MCU is transmitted to chairman's video conference terminal after with the packing of received PU monitoring image address and associated control signal, and chairman's video conference terminal forms up-to-date selective listing according to all similar H.245 bags of receiving in this meeting and shows on TV.
206, chairman's video conference terminal is by remote controller or the control of PC control desk, in tabulation, select the PU monitoring image address link of the real-time monitoring images correspondence that will check successively, set up media channel to obtain Media Stream with corresponding PU in view of the above, check on the TV outputing to after the Media Stream decoding and assess, finally select the real-time monitoring images that needs broadcasting.
II, see also chairman's video conference terminal shown in Figure 3 PU monitoring image address passed to MCU and controls the process that MCU directly transmits corresponding Media Stream, be specially:
301, chairman's video conference terminal will need the PU monitoring image address of the real-time monitoring images correspondence broadcasted to pass to MCU.
302, control the MCU management platform according to the PU monitoring image address that sends at chairman's video conference terminal, in the mode of drawing PU is inserted video conference as one road video conference terminal, set up the Media Stream that media channel obtains described corresponding real-time monitoring images with this PU then.
303, chairman's video conference terminal control MCU directly broadcasts the Media Stream that is obtained to each meeting-place, perhaps controls MCU and adopts Media Stream forwarding mechanism (as VDN) to transmit Media Stream to each meeting-place.
See also Fig. 4, this figure is depicted as the detailed implementation method of said process:
401, chairman's video conference terminal sends broadcasting and chooses the monitoring image order by the control of remote controller or PC control desk, with the PU monitoring image address of the real-time monitoring images correspondence chosen together with related command by H.245 passing to MCU after the protocol packing.
402, chairman's video conference terminal control MCU inserts video conference with corresponding PU as the virtual video conference terminal by the PU monitoring image address that receives, and makes MCU and this PU set up the Media Stream that media channel is obtained corresponding real-time monitoring images.
403, chairman's video conference terminal control MCU is broadcast to each meeting-place with the Media Stream of the real-time monitoring images of corresponding PU monitoring image address, perhaps adopts Media Stream forwarding mechanism (as VDN) to transmit above-mentioned Media Stream.
404, outputing to television set after the video conference terminal in each meeting-place is decoded to the Media Stream of being received shows.Common wired PU adopts fixed network monitoring TS code stream, wireless PU adopts mobile monitor ISMA code stream, not only can see the fixed network monitoring image but also can see the mobile monitor image for realizing video conference terminal, a kind of method that the present invention adopts is to add decoding unit on video conference terminal, makes it not only can separate fixed network monitoring TS code stream but also can separate mobile monitor ISMA code stream; Another kind method is that wireless PU is improved, and encodes in addition when collecting picture signal by it and uploads one road fixed network monitoring TS code stream, and video conference terminal does not need variation just can support fixed network monitoring image and mobile monitor image simultaneously like this.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, a kind of real-time monitoring images is directly introduced the method for video conference, it is characterized in that, may further comprise the steps:
(1) each non-chairman's video conference terminal is checked different real-time monitoring images respectively, select important real-time monitoring images, the front monitoring front-end monitoring image reporting address that it is corresponding is given chairman's video conference terminal, according to described address real-time monitoring images is checked and assessed by it, filter out the real-time monitoring images that needs broadcasting;
(2) described chairman's video conference terminal sends to multipoint control unit with the described front monitoring front-end monitoring image address of the real-time monitoring images correspondence of broadcasting that needs, and the control multipoint control unit inserts corresponding front monitoring front-end by this address as virtual video conference terminal;
(3) described chairman's video conference terminal control multipoint control unit is set up media channel with described front monitoring front-end, makes multipoint control unit obtain the Media Stream of real-time monitoring images by described media channel and this Media Stream is broadcasted or is transmitted to the video conference terminal in each meeting-place.
2, the method for real-time monitoring images directly being introduced video conference as claimed in claim 1, it is characterized in that, this method also comprises: after the video conference terminal in (4) described each meeting-place receives the broadcasting of described multipoint control unit or transmits the Media Stream that comes, this Media Stream back of decoding is play.
3, the method for real-time monitoring images directly being introduced video conference as claimed in claim 1 or 2, it is characterized in that, in the described step (1), the method of described non-chairman's viewing monitoring images by video session terminal is: described non-chairman's video conference terminal obtains up-to-date front monitoring front-end tabulation by electronic program guide server from the monitoring business management platform, therefrom select online front monitoring front-end, set up media channel and obtain the Media Stream of real-time monitoring images by this media channel according to the front monitoring front-end picture control address of correspondence and described front monitoring front-end.
4, the method for real-time monitoring images directly being introduced video conference as claimed in claim 1 or 2, it is characterized in that, in the described step (1), described non-chairman's video conference terminal sends to chairman's video conference terminal by point-to-point mode or by the multipoint control unit pass-through mode with described front monitoring front-end monitoring image address.
5, the method for real-time monitoring images directly being introduced video conference as claimed in claim 2, it is characterized in that, in the described step (4), from the wired monitoring front end, then described video conference terminal adopts the fixed network monitoring to transmit stream code stream mode to it and decodes as if described Media Stream; If described Media Stream is from the wireless monitor front end, then described video conference terminal adopts mobile monitor ISMA code stream mode to decode to it.
6, the method for real-time monitoring images directly being introduced video conference as claimed in claim 2, it is characterized in that, in the described step (3), if described front monitoring front-end is the wireless monitor front end, then this front monitoring front-end adopts the fixed network monitoring to transmit in addition to its Media Stream and is uploaded to described multipoint control unit after stream code stream mode is encoded; Simultaneously, in the described step (4), described video conference terminal adopts the fixed network monitoring to transmit stream code stream mode to its received Media Stream and decodes.
7, as claimed in claim 1 real-time monitoring images is directly introduced the method for video conference, it is characterized in that described front monitoring front-end monitoring image address comprises the front monitoring front-end address of corresponding monitoring image and the GUID channel information of monitoring image.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938626A (en) * | 2010-09-15 | 2011-01-05 | 杭州海康威视数字技术股份有限公司 | Video session terminal, system, and method |
| CN104349118A (en) * | 2014-11-26 | 2015-02-11 | 苏州科达科技股份有限公司 | Gateway for video conference system to schedule video monitoring system and processing method thereof |
| CN105681264A (en) * | 2014-11-20 | 2016-06-15 | 中兴通讯股份有限公司 | Communication method and device for client units |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101087398B (en) * | 2006-06-08 | 2010-05-12 | 中兴通讯股份有限公司 | A method and device for realizing remote monitoring in conference TV system |
| CN101115183B (en) * | 2007-09-06 | 2011-06-01 | 杭州华三通信技术有限公司 | Auxiliary stream transmission control method, MCU, chairman terminal and video terminal |
| CN101217635A (en) * | 2008-01-17 | 2008-07-09 | 中兴通讯股份有限公司 | A combined methods of video conferencing and monitoring service, video conferencing terminal and MCU |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101938626A (en) * | 2010-09-15 | 2011-01-05 | 杭州海康威视数字技术股份有限公司 | Video session terminal, system, and method |
| CN105681264A (en) * | 2014-11-20 | 2016-06-15 | 中兴通讯股份有限公司 | Communication method and device for client units |
| CN104349118A (en) * | 2014-11-26 | 2015-02-11 | 苏州科达科技股份有限公司 | Gateway for video conference system to schedule video monitoring system and processing method thereof |
| CN104349118B (en) * | 2014-11-26 | 2018-11-06 | 苏州科达科技股份有限公司 | Realize the gateway and its processing method of video conferencing system schedule video monitoring system |
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