CN102045540A - Video monitoring method, system and equipment - Google Patents
Video monitoring method, system and equipment Download PDFInfo
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- CN102045540A CN102045540A CN 200910206067 CN200910206067A CN102045540A CN 102045540 A CN102045540 A CN 102045540A CN 200910206067 CN200910206067 CN 200910206067 CN 200910206067 A CN200910206067 A CN 200910206067A CN 102045540 A CN102045540 A CN 102045540A
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Abstract
The embodiment of the invention provides a video monitoring method, a video monitoring system and video monitoring equipment. The method comprises the following steps that: a video monitoring platform receives a video browsing request from a client unit, wherein the video browsing request carries a transcoding identification parameter; according to identification information of front-end acquisition equipment carried in the video browsing request, a code stream before transcoding acquired by the front-end acquisition equipment is searched for; the video monitoring platform transcodes the code stream before transcoding to form the code stream after transcoding according to the transcoding identification parameter; and the video monitoring platform transmits the code stream after transcoding to the client unit, so that the client unit can receive and play the code stream after transcoding corresponding to the transcoding identification parameter. In the embodiment of the invention, the video monitoring platform is used for performing uniform transcoding processing on each client unit, so that the normality of transcoding processing is realized.
Description
Technical field
The embodiment of the invention relates to the video monitoring technology, relates in particular to a kind of video frequency monitoring method, system and equipment.
Background technology
(Video Surveillance, be called for short: VS) technology is meant the video information of gathering each monitored site by front-end collection equipment respectively to video monitoring, again the technology of the video information unification that collects being monitored by the video controlling platform.Existing front-end collection equipment adopts fixing code stream parameter to encode to the video information that collects usually, therefore, when with video monitoring system in client or other equipment when interconnecting, because different clients can be used different code stream parameters, therefore need carry out transcoding and handle.And the transcoding handling process at different clients has nothing in common with each other in the existing video monitoring system, causes system architecture unreasonable, and compatible relatively poor, the transcoding cost is higher, and is unfavorable for system update and upgrading.
Summary of the invention
The invention process provides a kind of video frequency monitoring method, system and equipment, handles to realize unified transcoding at different coding parameters.
The embodiment of the invention provides a kind of video frequency monitoring method, comprising:
Video monitoring platform receives the video tour request that comes from client unit, carries the transcoding identification parameter in this video tour request;
Video monitoring platform is searched the preceding code stream of transcoding that described front-end collection equipment collects according to the front-end collection equipment mark information of carrying in the described video tour request;
Video monitoring platform according to described transcoding identification parameter to described transcoding before code stream carry out transcoding, form code stream behind the transcoding;
Video monitoring platform with described transcoding after code stream send to described client unit so that code stream behind the described transcoding that described client unit can receive and broadcast is corresponding with described transcoding identification parameter.
The embodiment of the invention also provides another kind of monitor video acquisition methods, comprising:
Client unit sends the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request;
Described client unit receives also to play by video in the described video monitoring platform or that described video monitoring platform is plug-in changes code stream behind the transcoding that Dispatching Unit sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
The embodiment of the invention provides a kind of center management server, comprising:
The server side receiver module is used to receive the video tour request that comes from client unit, carries the transcoding identification parameter in this video tour request;
Search module, be used for the front-end collection equipment mark information of carrying, search code stream before the transcoding that described front-end collection equipment collects according to described video tour request;
The server side sending module, be used for to video change Dispatching Unit send by described search module searches to described transcoding before code stream so that described video change Dispatching Unit with described transcoding before code stream send to media transcoding units;
Indicating module is used for sending the transcoding notice that carries the transcoding identification parameter to described media transcoding units, indicate described media transcoding units according to described transcoding identification parameter to described transcoding before code stream carry out transcoding and form code stream behind the transcoding; And be used for changeing Dispatching Unit and send the code stream notice distribution to described video, indicate described video to change the described transcoding that Dispatching Unit will obtain from described media transcoding units after code stream send to described client unit.
The embodiment of the invention provides a kind of client unit, comprising:
The client-side sending module is used for sending the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request;
The client-side receiver module, be used for receiving and play by the plug-in video of video monitoring platform described video monitoring platform or described and change code stream behind the transcoding that Dispatching Unit sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
The embodiment of the invention provides a kind of video to change Dispatching Unit, comprising:
The distribution side joint is received module, be used to receive preceding code stream of the transcoding that comes from center management server and code stream notice distribution, and come from media transcoding units according to the transcoding identification parameter to transcoding before code stream carry out code stream behind the transcoding that transcoding forms, described transcoding identification parameter is that described center management server obtains from the video tour request that client unit sends;
Distribution side sending module, be used for code stream before the described transcoding is sent to described media transcoding units, and according to described code stream notice distribution, code stream behind the described transcoding is sent to described client unit, so that code stream behind the described transcoding that described client unit can receive and broadcast is corresponding with described transcoding identification parameter.
The embodiment of the invention provides a kind of media transcoding units, comprising:
The transcoding side joint is received module, being hung on video outward changes on the Dispatching Unit, be used to receive code stream before the transcoding that comes from described video and change Dispatching Unit and come from the transcoding notice that carries the transcoding identification parameter of center management server, described transcoding identification parameter is that described center management server obtains from the video tour request that client unit sends;
Transcoding Executive Module, the transcoding identification parameter that is used for receiving the described transcoding notice that module receives according to the transcoding side joint to the described transcoding that receives before code stream carry out transcoding, and form code stream behind the transcoding;
Transcoding side sending module, code stream sends to described video behind the transcoding that is used for the transcoding Executive Module is formed changes Dispatching Unit.
The embodiment of the invention provides a kind of described video commentaries on classics Dispatching Unit of the described center management server of the embodiment of the invention, the described client unit of the embodiment of the invention, the embodiment of the invention of the connection that communicates with one another and video monitoring system of the described media transcoding units of the embodiment of the invention of comprising, wherein also comprise: front-end collection equipment, change Dispatching Unit with described center management server and described video and link to each other, be used to gather real-time monitoring code stream as transcoding before code stream.
The embodiment of the invention has realized the video that front-end collection equipment collects is monitored, because using video monitoring platform to carry out unified transcoding at each client unit handles, thereby realized the normalizing that transcoding is handled, therefore need not at the different different transcoding handling processes of client unit design, simplified system architecture, reduce cost, improved each compatibility of apparatus in the supervisory control system.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
The flow chart of a kind of video frequency monitoring method that Fig. 1 provides for the embodiment of the invention one;
Fig. 2 is the particular flow sheet of step 103 in the method shown in Figure 1;
The flow chart of a kind of video frequency monitoring method that Fig. 3 provides for the embodiment of the invention two;
Fig. 4 is a signaling diagram embodiment illustrated in fig. 3;
The structural representation of the video monitoring system that Fig. 5 provides for the embodiment of the invention four;
Fig. 6 is the structural representation of the center management server among Fig. 5;
Fig. 7 is the structural representation that the video among Fig. 5 changes Dispatching Unit;
Fig. 8 is the structural representation of the media transcoding units among Fig. 5;
Fig. 9 is the structural representation of the client unit among Fig. 5;
The structural representation of the video monitoring system that Figure 10 provides for the embodiment of the invention five.
Embodiment
Embodiment one
The flow chart of a kind of video frequency monitoring method that Fig. 1 provides for the embodiment of the invention one, as shown in the figure, this method comprises:
Wherein, front-end collection equipment also can be called front end unit (Peripheral Unit, be called for short: PU), be specifically as follows the first-class equipment of shooting, and, provide functions such as real-time monitoring audio, video data, front monitoring front-end alarm signal, the control of realization front monitoring front-end cloud mirror for supervisory control system by subsets such as the plug-in camera lens of hardware interface, audio frequency I/O, alarm I/O, Yun Jing.In addition, in order to realize functions such as audio collection, temperature acquisition, also can set up microphone, recorder, and parts such as transducer in the front-end collection equipment.
Particularly, after supervisory user can be obtained monitoring the Resources list by client unit accessing video monitor supervision platform, in the monitoring the Resources list that returns, select front-end collection equipment, and send the video tour request, in this video tour request, can carry selected front-end collection equipment mark information, for example camera lens ID etc. browses the video that this front-end collection equipment is gathered with request, is used to monitor.
Wherein, code stream is meant the code stream that the code stream parameter that adopts self by front-end collection equipment forms after to the coding video data that collects before the transcoding, for example, the code stream that camera obtains according to self code stream parameter codings such as screen size, resolution is called code stream before the transcoding, and this code stream does not carry out transcoding at each client unit as yet.
Method by present embodiment has realized the video that front-end collection equipment collects is monitored, because video monitoring platform, particularly utilized MTU, having carried out unified transcoding at each client unit handles, thereby realized the normalizing that transcoding is handled, therefore need not to have simplified system architecture at the different different transcoding handling processes of client unit design, reduce the transcoding cost, improved each compatibility of apparatus in the supervisory control system.
Particularly, present embodiment step 103 can be by the MTU on the VTDU that is hung on video monitoring platform outward, according to described transcoding identification parameter to the transcoding that comes from this VTDU before code stream carry out transcoding, form code stream behind the transcoding.In view of the above, by adopting plug-in pattern in video monitoring platform, to add MTU, make it possess the transcoding ability, coupling to peripheral unit is little, it is convenient to dispose, therefore, need not to change the topological structure of other equipment in the video monitoring platform, also need not upgrade to other media component in the existing network in order to possess the transcoding ability; And, by all being put together, the transcoding ability is placed in the Intranet, also help reducing IP flow pressure to public network.
In addition, the dynamic transcoding that present embodiment adopted (Dynamic Media Transcoding) mode is compared with dynamic transcoding mode with existing static transcoding mode, also has outstanding technical advantage, makes a concrete analysis of as follows:
1, the technical advantage of comparing with existing static transcoding mode
Existing static transcoding mode is meant that supervisory control system just considers all transcoding demands under initial condition, after supervisory control system starts, just at the code stream parameter of various required monitor videos the video code flow that the front end video capture device collects is carried out transcoding in advance, make close on system start-up after, in video monitoring platform, there has been code stream behind the various transcodings, provides required code stream according to the video tour request that receives to the requesting party again.Because code stream and unmanned visit behind a lot of transcoding therefore can cause resource waste, and cost is higher, cost is bigger but in fact.
And this to implement described method be just to carry out transcoding to handle after receiving the video tour request that client unit sends, belong to a kind of dynamic transcoding mode, therefore, can not cause resource waste, thereby help saving cost.
2, the technical advantage of comparing with existing dynamic transcoding mode
Existing dynamic transcoding is meant that the front end video capture device is after collecting video information and adopting fixing code stream parameter to encode, do not carry out transcoding in advance immediately, but when concrete video monitoring service triggers transcoding, carry out transcoding by each the concrete monitoring business subsystem that is superimposed upon on the video monitoring basic capacity (as: distribution, video recording, playback, alarm etc.), and according to code stream behind the business demand processing transcoding.Though compare with static transcoding mode and to have reduced resource waste, but because it is too strong to carry out the transcoding server and the service sub-system coupling in the concrete video monitoring system of transcoding operation, what a plurality of service sub-systems with transcoding demand existed that the code stream to specifically monitored video repeats transcoding may.
And this is implemented described method and just carries out transcoding according to the needs of client unit, be not associated with concrete monitoring business, therefore coupling is lower, and because the code stream parameter (being the transcoding identification parameter) of different clients unit is normally inequality, for example, even two client unit are pc client, but parameters such as its resolution also might be also inequality, therefore, seldom can cause the situation of repetition transcoding, thereby help reducing system burden, improve operational efficiency.
Fig. 2 is the particular flow sheet of step 103 in the method shown in Figure 1, and this step 103 specifically comprises:
Particularly, in above-mentioned steps, CMS can be earlier according to the health information of a plurality of VTDU and the MTU that links to each other with these VTDU respectively, a MTU who selects a VTDU and be attached thereto, and then before the VTDU that chooses sends described transcoding code stream, send described transcoding notice to the MTU that chooses.Wherein, health information comprises distribution of content, apparatus of load situation, equipment health status, and the decoding capability etc. of code stream before the transcoding.Thereby help preferred to VTDU and MTU.For example, if select certain and the nearer VTDU of physical distance of the client unit of initiating the video tour request, then help reducing the distance of code stream transmission, raising speed and quality; Again for example,, then help the workload of reasonable distribution transcoding, improve usage ratio of equipment if select certain load state MTU and corresponding VTDU thereof preferably; Again for example, if select health status better, VTDU that decoding capability is stronger and MTU then help improving the efficient and the success rate of transcoding.
Need to prove herein, according to the selection of CMS, before the transcoding behind code stream and the transcoding code stream can distribute by different VTDU, also can be by same VTDU distribution.
By above-mentioned idiographic flow, make VTDU and MTU under the unified debugging of CMS, realize to transcoding before code stream obtain and transcoding is handled.
Embodiment two
The flow chart of a kind of video frequency monitoring method that Fig. 3 provides for the embodiment of the invention two.As shown in the figure, compare with embodiment illustrated in fig. 1, present embodiment has increased step 105.Promptly in step 102, when before the transcoding that the described front-end collection equipment of front-end collection equipment mark information searching that the CMS in the video monitoring platform carries in according to described video tour request collects during code stream, if find this transcoding stream, then carry out described step 103, otherwise execution in step 105.
Below illustrate the signaling process of the described method of present embodiment by Fig. 4.As shown in the figure, this signaling process specifically comprises:
S1: supervisory user is selected front-end collection equipment after obtaining monitoring the Resources list by CU accessing video monitor supervision platform in the monitoring the Resources list that returns;
S2:CU sends the CMS of video tour request to video monitoring platform, front-end collection equipment mark information and the transcoding identification parameter that will visit to some extent carried in this video tour request, for example carry the camera lens sign (ID) of image pick-up device, and carry parameters such as self screen size size, resolution as the transcoding identification parameter;
S3:CMS handles the video tour request that receives, and selects VTDU and MTU according to health information;
S4:CMS sends the code stream notice distribution to VTDU;
S5:VTDU handles the code stream notice distribution and replys the response of code stream notice distribution to CMS;
S6:CMS searches code stream before the transcoding that corresponding camera lens collects according to camera lens ID; If do not find the preceding code stream of required transcoding, then indicate this camera lens to carry out real time video collection;
S7:CMS sends the transcoding notice to MTU, carries the transcoding identification parameter in this transcoding notice;
S8:MTU handles the back to the transcoding notice and replys the transcoding push-notification-answer to CMS;
S9:CMS replys video tour request response to client unit;
S10: the real-time monitoring code stream that front-end collection equipment will collect send to VTDU as described transcoding before code stream;
S11:VTDU with transcoding before code stream send to MTU.
S12:MTU according to the transcoding identification parameter in the transcoding notification message to described transcoding before code stream carry out transcoding, form code stream behind the transcoding;
S13:MTU with transcoding after code stream send to VTDU;
S14:VTDU with transcoding after code stream send to CU;
S15:CU will receive behind the transcoding code stream broadcast of decoding;
S16:CU represents real-time monitor video to supervisory user.
In the described method of present embodiment, carry out real time video collection by CMS indication front-end collection equipment, and the real-time monitoring code stream that will collect as described transcoding before code stream send to VTDU, and then carry out operations such as transcoding, therefore, not only can realize the video code flow that the front-end collection equipment of having preserved collects is reproduced broadcast, but also can carry out the video code flow that front-end collection equipment collects in real time reproducing broadcast behind the real-time transcoding, thereby realized real-time monitoring to the monitored site.
In addition, the client unit described in the previous embodiment is except can be for as the fixed client end units such as video wall, PC terminal, also can for the mobile client unit (Mobile Client Unit, be called for short: MCU), as mobile phone terminal, notebook computer etc.Under the situation that adopts MCU, step 101 in embodiment illustrated in fig. 1 is specially: the CMS in the described video monitoring platform receives the video tour request that comes from the mobile client end unit that inserts by wireless access way, carries the transcoding identification parameter in this video tour request.
Existing mobile communication operator is managing multiple mobile communications network, and the mobile access bandwidth that every kind of network aloft provides on the interface has nothing in common with each other, and is also different at the coding requirement of mobile monitor Media Stream, and therefore multichannel transcoding demand is arranged; And the code stream of the encoding device of existing front-end collection equipment output is mostly at the fixed network monitoring business, code check is generally bigger, although the bandwidth of 3G (Third Generation) Moblie network has remarkable lifting, but still can not satisfy directly in the demand of transmitting, monitoring video code flow of eating dishes without rice or wine.
In the described method of present embodiment, when video monitoring is carried out in the MCU request, can use MTU at each MCU according to its concrete transcoding identification parameter (as: coded format, resolution, frame per second, bit rate, parameter such as code level and class) unifying transcoding handles, thereby can be suitable for the different demands of different MCU to the transmitting, monitoring video code flow, realization is to the support of mobile monitoring service, promptly move and watch monitor video, reduced the complexity of system and realized cost by dynamic transcoding realization MCU.
Embodiment three
The embodiment of the invention three also provides another kind of monitor video acquisition methods, can be carried out by client unit, specifically comprises the steps:
Client unit sends the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request, goes back portability front-end collection equipment mark information;
Described client unit receives also to play by video in the described video monitoring platform or that described video monitoring platform is plug-in changes code stream behind the transcoding that Dispatching Unit sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
Embodiment four
The structural representation of the video monitoring system that Fig. 5 provides for the embodiment of the invention four.As shown in the figure, this system comprises: center management server 10, video change Dispatching Unit 20, media transcoding units 30, client unit 40 and front-end collection equipment 50.Wherein, center management server 10, video change Dispatching Unit 20 and media transcoding units 30 formation video monitoring platforms.Front-end collection equipment 50 and described center management server 10 and described video change Dispatching Unit 20 and link to each other, be used to gather real-time monitoring code stream as transcoding before code stream.
Fig. 6 is the structural representation of the center management server 10 among Fig. 5; Fig. 7 is the structural representation that the video among Fig. 5 changes Dispatching Unit 20; Fig. 8 is the structural representation of the media transcoding units 30 among Fig. 5; Fig. 9 is the structural representation of the client unit 40 among Fig. 5.
Wherein, in the center management server 10, comprise server side receiver module 11, search module 12, server side sending module 13 and indicating module 14.Server side receiver module 11 is used to receive the video tour request that comes from client unit 40, carries the transcoding identification parameter in this video tour request; Search the identification information that module 12 is used for the front-end collection equipment 50 that carries according to the video tour request, search code stream before the transcoding that front-end collection equipment 50 collects; Server side sending module 13 is used for changeing Dispatching Unit 20 to video and sends by code stream before searching the transcoding that module 12 finds, so that video changes Dispatching Unit 20 code stream before the transcoding is sent to media transcoding units 30; Indicating module 14 is used for sending the transcoding notice that carries the transcoding identification parameter to media transcoding units 30, indication media transcoding units 30 according to the transcoding identification parameter to transcoding before code stream carry out transcoding and form code stream behind the transcoding; And be used for changeing Dispatching Unit 20 to video and send the code stream notice distributions, code stream sent to client unit 40 after instruction video changeed the transcoding that Dispatching Unit 20 will obtain from media transcoding units 30.
Described indicating module 14 also can be used for indicating described front-end collection equipment 50 to carry out real time video collection when searching module 12 when not finding before the described transcoding code stream, and the real-time monitoring code stream that will collect as described transcoding before code stream.
Can also be provided with in the center management server 10 and select module 15, be used for changeing Dispatching Unit 20 and changeing the health information of the media transcoding units 30 that Dispatching Unit 20 link to each other respectively with these videos, select a video to change Dispatching Unit 20 and a media transcoding units 30 linking to each other with this video commentaries on classics Dispatching Unit 20 sends code stream before the described transcoding, described transcoding is notified and described code stream notice distribution according to a plurality of videos.
In client unit 40, comprise client-side sending module 41 and client-side receiver module 42.Client-side sending module 41 is used for sending the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request; Client-side receiver module 42 is used for receiving and play by video video monitoring platform or that video monitoring platform is plug-in changes code stream behind the transcoding that Dispatching Unit 20 sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
In video commentaries on classics Dispatching Unit 20, comprise distribution side joint receipts module 21 and distribution side sending module 22.The distribution side joint is received module 21 and is used to receive preceding code stream of the transcoding that comes from center management server 10 and code stream notice distribution, and come from media transcoding units 30 according to the transcoding identification parameter to transcoding before code stream carry out code stream behind the transcoding that transcoding forms, described transcoding identification parameter is that described center management server 10 obtains from the video tour request that client unit 40 sends; Distribution side sending module 22 is used for code stream before the described transcoding is sent to described media transcoding units 30, and according to described code stream notice distribution, code stream behind the described transcoding is sent to described client unit 40, so that code stream behind the described transcoding that described client unit 40 can receive and broadcast is corresponding with described transcoding identification parameter.
In media transcoding units 30, comprise transcoding side joint receipts module 31, transcoding Executive Module 32 and transcoding side sending module 33.The transcoding side joint is received the module 31 outer videos that are hung on to be changeed on the Dispatching Unit 20, be used to receive code stream before the transcoding that comes from described video and change Dispatching Unit 20 and come from the transcoding notice that carries the transcoding identification parameter of center management server 10, described transcoding identification parameter is that described center management server 10 obtains from the video tour request that client unit 40 sends; The transcoding identification parameter that transcoding Executive Module 32 is used for receiving the described transcoding notice that module 31 receives according to the transcoding side joint to the described transcoding that receives before code stream carry out transcoding, and form code stream behind the transcoding; Code stream sends to described video behind the transcoding that transcoding side sending module 33 is used for transcoding Executive Module 32 is formed is changeed Dispatching Unit 20.
The operation principle of this system is as follows:
The client-side sending module 41 of client unit 40 sends the video tour request to center management server 10, carry the transcoding identification parameter in this video tour request, can also carry the identification information of the front-end collection equipment of from monitoring the Resources list, selecting 50, identification information can be camera lens ID of image pick-up device etc., the transcoding identification parameter is meant can be by the decode parameter of the code stream play of this client unit 40, as coded format, resolution, frame per second, bit rate, parameters such as code level and class;
After server side receiver module 11 in the center management server 10 receives the video tour request that comes from client unit 40, by searching the identification information of module 12 according to the front-end collection equipment 50 that carries in this video tour request, search the preceding code stream of transcoding that described front-end collection equipment 50 collects, code stream is meant the code stream that the code stream parameter that adopts self by front-end collection equipment 50 forms after to the coding video data that collects before the transcoding, for example, camera is according to the screen size of self, the code stream that code stream parameter codings such as resolution obtain is called the preceding code stream of transcoding, and this code stream does not carry out transcoding at each client unit 40 as yet;
Send the transcoding notice that carries the transcoding identification parameter by indicating module 14 to media transcoding units 30, and before video changes Dispatching Unit 20 to send the transcoding that finds code stream;
The distribution side joint that video changes Dispatching Unit 20 is received module 21 and is received code stream before the transcoding that comes from center management server 10, and by distribution side sending module 22 code stream before the described transcoding is sent to described media transcoding units 30;
The transcoding side joint of media transcoding units 30 is received module 31 and is received preceding code stream of transcoding that comes from video commentaries on classics Dispatching Unit 20 and the transcoding notice that comes from center management server 10;
Be hung on outward video change on the Dispatching Unit 20 transcoding Executive Module 32 according to the transcoding side joint receive transcoding identification parameter in the described transcoding notice that module 31 receives to the described transcoding that receives before code stream carry out transcoding, and code stream behind the formation transcoding, after the transcoding identification parameter is determined according to the indication of client unit 40, how to carry out transcoding and can adopt conventional transcoding technology to finish, repeat no more herein; Code stream sends to described video behind the transcoding that transcoding Executive Module 32 is formed by transcoding side sending module 33 is changeed Dispatching Unit 20;
The distribution side joint that video changes Dispatching Unit 20 receive module 21 receive come from media transcoding units 30 according to the transcoding identification parameter to transcoding before code stream carry out code stream behind the transcoding that transcoding forms;
Indicating module 14 by center management server 10 changes Dispatching Unit 20 transmission code stream notice distributions to described video;
When the distribution side joint that changes Dispatching Unit 20 when video is received module 21 and is received described code stream notice distribution, according to the code stream notice distribution that comes from center management server 10, code stream behind the described transcoding is sent to corresponding client unit 40 by distribution side sending module 22.
The client-side receiver module 42 of client unit 40 receives by video changes code stream behind the transcoding that Dispatching Unit 20 sends, and just monitor video can be reproduced to supervisory user after playing by decoding.
Described system can carry out the video frequency monitoring method that the embodiment of the invention provides by present embodiment, concrete flow process details can be described referring to preceding method embodiment, realized the video that front-end collection equipment collects is monitored, because using MTU to carry out unified transcoding at each client unit handles, thereby realized the normalizing that transcoding is handled, therefore need not at the different different transcoding handling processes of client unit design, simplified system architecture, reduced the transcoding cost, improved each compatibility of apparatus in the supervisory control system, and except needs plug-in MTU on the VTDU, need not the topological structure of other equipment in the change system, therefore be convenient to system update and upgrading.And the dynamic transcoding mode that present embodiment adopted is compared with dynamic transcoding mode with existing static transcoding mode, also has outstanding technical advantage, specifically referring to above stated specification, repeats no more herein.
In addition, described center management server 10 can also further be provided with selects module 15, be used for changeing Dispatching Unit and changeing the health information of the media transcoding units that Dispatching Unit link to each other respectively with these videos, select a video to change Dispatching Unit and reach a media transcoding units that links to each other with this video commentaries on classics Dispatching Unit according to a plurality of videos.Wherein, health information comprises distribution of content, apparatus of load situation, equipment health status, and the decoding capability etc. of code stream before the transcoding.Thereby help preferred to VTDU and MTU.
In addition, the indicating module 14 of described center management server 10 can be worked as and searched module 12 when not finding before the described transcoding code stream, indicate described front-end collection equipment 50 to carry out real time video collection and the real-time monitoring code stream that will collect as described transcoding before code stream.Thereby realized real-time monitoring to the monitored site.
Embodiment five
The structural representation of the video monitoring system that Figure 10 provides for the embodiment of the invention five.As shown in the figure, be with difference embodiment illustrated in fig. 5, client unit 40 in the system shown in Figure 10 is specially mobile client end unit 400, and this system also comprises wireless access server 60, it is single 400 to be used for inserting mobile client with wireless access way, and the video tour request that will come from this mobile client end unit 400 is transmitted to described center management server 10.
In the described method of present embodiment, when video monitoring is carried out in the MCU request, can use MTU at each MCU according to its concrete transcoding identification parameter (as: coded format, resolution, frame per second, bit rate, parameter such as code level and class) unifying transcoding handles, thereby can be suitable for the different demands of different MCU to the transmitting, monitoring video code flow, realization is to the support of mobile monitoring service, promptly move and watch monitor video, reduced the complexity of system and realized cost by dynamic transcoding realization MCU.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a video frequency monitoring method is characterized in that, comprising:
Video monitoring platform receives the video tour request that comes from client unit, carries the transcoding identification parameter in this video tour request;
Video monitoring platform is searched the preceding code stream of transcoding that described front-end collection equipment collects according to the front-end collection equipment mark information of carrying in the described video tour request;
Video monitoring platform according to described transcoding identification parameter to described transcoding before code stream carry out transcoding, form code stream behind the transcoding;
Video monitoring platform with described transcoding after code stream send to described client unit so that code stream behind the described transcoding that described client unit can receive and broadcast is corresponding with described transcoding identification parameter.
2. video frequency monitoring method according to claim 1 is characterized in that, described video monitoring platform according to described transcoding identification parameter to described transcoding before code stream carry out transcoding, form transcoding after code stream comprise:
The video of center management server in the described video monitoring platform in described video monitoring platform changes Dispatching Unit and sends code stream before the transcoding of checking and accepting, so as described video change Dispatching Unit with described transcoding before code stream send to media transcoding units in the described video monitoring platform;
And, described center management server sends the transcoding notice that carries described transcoding identification parameter to described media transcoding units, so that described media transcoding units according to the transcoding identification parameter in the described transcoding notice to described transcoding before code stream carry out transcoding, code stream behind the formation transcoding, and send to described video commentaries on classics Dispatching Unit.
3. video frequency monitoring method according to claim 2, it is characterized in that, described center management server is code stream before described video changes Dispatching Unit to send the transcoding of checking and accepting, and sends the transcoding notice that carries described transcoding identification parameter to described media transcoding units and comprise:
Described center management server is changeed Dispatching Unit according to a plurality of videos and is changeed the health information of the media transcoding units that Dispatching Unit link to each other respectively with these videos, selects a video to change Dispatching Unit and reaches a media transcoding units that links to each other with this video commentaries on classics Dispatching Unit;
Described center management server is code stream before selected video changes Dispatching Unit to send described transcoding, sends described transcoding notice to selected media transcoding units.
4. video frequency monitoring method according to claim 1 is characterized in that, described video monitoring platform with described transcoding after code stream send to described client unit and comprise:
The video of center management server in the described video monitoring platform in described video monitoring platform changes Dispatching Unit and sends the code stream notice distribution, so as described video change Dispatching Unit according to described code stream notice distribution with described transcoding after code stream send to described client unit.
5. video frequency monitoring method according to claim 1 is characterized in that, described video monitoring platform is searched before the transcoding that described front-end collection equipment collects and also comprised after the code stream:
Before described video monitoring platform finds described transcoding, during code stream, do not indicate described front-end collection equipment to carry out real time video collection, and the real-time monitoring code stream that will collect as described transcoding before code stream.
6. video frequency monitoring method according to claim 1 is characterized in that, described video monitoring platform according to described transcoding identification parameter to described transcoding before code stream carry out transcoding, form transcoding after code stream comprise:
Described video monitoring platform changes media transcoding units on the Dispatching Unit by the video that is hung on described video monitoring platform outward, according to described transcoding identification parameter to described transcoding before code stream carry out transcoding, form code stream behind the transcoding.
7. according to the arbitrary described video frequency monitoring method of claim 1～6, it is characterized in that described video monitoring platform receives the video tour request that comes from client unit and comprises:
Described video monitoring platform receives the video tour request that comes from the mobile client end unit that inserts by wireless access way.
8. a monitor video acquisition methods is characterized in that, comprising:
Client unit sends the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request;
Described client unit receives also to play by video in the described video monitoring platform or that described video monitoring platform is plug-in changes code stream behind the transcoding that Dispatching Unit sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
9. a center management server is characterized in that, comprising:
The server side receiver module is used to receive the video tour request that comes from client unit, carries the transcoding identification parameter in this video tour request;
Search module, be used for the front-end collection equipment mark information of carrying, search code stream before the transcoding that described front-end collection equipment collects according to described video tour request;
The server side sending module, be used for to video change Dispatching Unit send by described search module searches to described transcoding before code stream so that described video change Dispatching Unit with described transcoding before code stream send to media transcoding units;
Indicating module is used for sending the transcoding notice that carries the transcoding identification parameter to described media transcoding units, indicate described media transcoding units according to described transcoding identification parameter to described transcoding before code stream carry out transcoding and form code stream behind the transcoding; And be used for changeing Dispatching Unit and send the code stream notice distribution to described video, indicate described video to change the described transcoding that Dispatching Unit will obtain from described media transcoding units after code stream send to described client unit.
10. center management server according to claim 9 is characterized in that, also comprises:
Select module, be used for changeing Dispatching Unit and changeing the health information of the media transcoding units that Dispatching Unit link to each other respectively with these videos, select a video to change Dispatching Unit and a media transcoding units linking to each other with this video commentaries on classics Dispatching Unit sends code stream before the described transcoding, described transcoding is notified and described code stream notice distribution according to a plurality of videos.
11. center management server according to claim 9, it is characterized in that, described indicating module also is used for when searching module when not finding before the described transcoding code stream, indicate described front-end collection equipment to carry out real time video collection, and the real-time monitoring code stream that will collect as described transcoding before code stream.
12. a client unit is characterized in that, comprising:
The client-side sending module is used for sending the video tour request to video monitoring platform, carries the transcoding identification parameter in this video tour request;
The client-side receiver module, be used for receiving and play by the plug-in video of video monitoring platform described video monitoring platform or described and change code stream behind the transcoding that Dispatching Unit sends, behind the described transcoding code stream for according to described transcoding identification parameter to transcoding before code stream carry out that transcoding forms.
13. a video changes Dispatching Unit, it is characterized in that, comprising:
The distribution side joint is received module, be used to receive preceding code stream of the transcoding that comes from center management server and code stream notice distribution, and come from media transcoding units according to the transcoding identification parameter to transcoding before code stream carry out code stream behind the transcoding that transcoding forms, described transcoding identification parameter is that described center management server obtains from the video tour request that client unit sends;
Distribution side sending module, be used for code stream before the described transcoding is sent to described media transcoding units, and according to described code stream notice distribution, code stream behind the described transcoding is sent to described client unit, so that code stream behind the described transcoding that described client unit can receive and broadcast is corresponding with described transcoding identification parameter.
14. a media transcoding units is characterized in that, comprising:
The transcoding side joint is received module, being hung on video outward changes on the Dispatching Unit, be used to receive code stream before the transcoding that comes from described video and change Dispatching Unit and come from the transcoding notice that carries the transcoding identification parameter of center management server, described transcoding identification parameter is that described center management server obtains from the video tour request that client unit sends;
Transcoding Executive Module, the transcoding identification parameter that is used for receiving the described transcoding notice that module receives according to the transcoding side joint to the described transcoding that receives before code stream carry out transcoding, and form code stream behind the transcoding;
Transcoding side sending module, code stream sends to described video behind the transcoding that is used for the transcoding Executive Module is formed changes Dispatching Unit.
15. one kind comprises the described video commentaries on classics Dispatching Unit of the arbitrary described center management server of claim 9～11, the described client unit of claim 12, claim 13 of the connection that communicates with one another and the video monitoring system of the described media transcoding units of claim 14, it is characterized in that, also comprise: front-end collection equipment, change Dispatching Unit with described center management server and described video and link to each other, be used to gather real-time monitoring code stream as transcoding before code stream.
16. video monitoring system according to claim 15, it is characterized in that, described client unit is the mobile client end unit, described system also comprises the wireless access server, be used for inserting the mobile client end unit, and the video tour request that will come from this mobile client end unit is transmitted to described center management server with wireless access way.
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