CN104219500A - Device and method for monitoring video live broadcast - Google Patents
Device and method for monitoring video live broadcast Download PDFInfo
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Abstract
The invention relates to a device and method for monitoring video live broadcast. The method includes that a camera is utilized for acquiring video images, the video images are transmitted to a digital or network hard disk recorder, the digital or network hard disk recorder codes the video stream data, the video stream data are transmitted to a monitoring live broadcast gateway, the monitoring live broadcast gateway codes the transmitted video stream data with different codes uniformly, the video stream data are transmitted to a streaming media server, the streaming media server distributes the video stream data to a player of terminal equipment, and the requirements of a terminal visitor on watching monitoring video live broadcasting images can be met. According to the method and device, the requirements on watching the live broadcasting monitoring images through the Internet by a large amount of users can be met without client and browser plug-in installation and login; meanwhile, management of the network or digital hard disk recorder and the connected camera is implemented, camera images unnecessary broadcasting outwardly are shielded, the local monitoring system and Internet are isolated, and the operation security of the monitoring system is guaranteed.
Description
Technical field
The present invention relates to the live apparatus and method of a kind of monitor video.
Background technology
Monitoring technique is applied more and more extensive socially, and the covering of monitor network is also more and more comprehensive.Along with the develop rapidly of the Internet, all trades and professions are all in the application extension scheme of seeking the industry by networking technology.Live by originally the Internet disclose for inner monitor video picture, no matter for the production management of enterprise supervise, the publicity measures lifting propagation effect of increase business activity, or the openness of government affairs of government, law works openly have very important meaning.
Although can meeting some Internet user, current supervisory control system watches the live requirement of monitor video, but there is significant limitation, existing technical scheme is by the numeral in supervisory control system or the direct accessing Internet of network hard disk video recorder, the client software that visitor's terminal provides by numeral or network hard disk video recorder producer logs in, or the browser plug-in of installation producer is watched the live picture of monitor video.Sum up and have following weak point:
1) log in numeral or the network hard disk video recorder of different brands or model, the numeral of different brands or model or client software or the browser plug-in that network hard disk video recorder producer provides need to be installed.
2) need to authorize in advance, must obtain the username and password pre-setting and just can watch monitoring live video.
3) can not accomplish effective management and use to monitoring live video source, beholder can watch all live pictures of video camera that are connected to numeral or network hard disk video recorder, cannot shield and not need the video source live to the Internet.
4) because numeral or network hard disk video recorder hardware factor and local access bandwidth are usually restricted, cause watching the live number of users of monitor video to be very limited simultaneously.
5) numeral or network hard disk video recorder are directly connected to the Internet, cannot resist the security threat from the Internet, cause supervisory control system paralysis or monitored picture to leak, and affect the normal operation of supervisory control system.
Summary of the invention
The object of this invention is to provide the live apparatus and method of a kind of monitor video, under client and browser plug-in, prerequisite without login, meeting a large number of users and watch the demand of carrying out live monitor video picture by the Internet simultaneously without installing.Realize the management of the video camera to the network in supervisory control system or digital hard disc video recorder and connection thereof, shielding, without external live camera views, is isolated local monitoring system and the Internet, ensures the security of operation of supervisory control system simultaneously.
The live device of monitor video provided by the invention comprises:
Video camera, for gathering video information;
Numeral or network hard disk video recorder, encode the video information of camera acquisition and store video video recording;
Monitor live gateway, comprise input module, transcoding module and administration module, output module;
Described input module is for receiving the video stream data of numeral or network hard disk video recorder output.
Described transcoding module is for decoding the video stream data receiving and being re-encoded as the video flowing of consolidation form;
The video flowing of the consolidation form sending from transcoding module is exported to streaming media server by described output module;
Described administration module, for obtaining network that front end connects or the administration authority of digital hard disc video recorder, and the video camera that connects of load networks or digital hard disc video recorder.
Streaming media server, is distributed to the video flowing of reception the user terminal of access request.
Player, is responsible for displaying video picture.
The connected mode of the live device of monitor video provided by the invention is: video camera, numeral or network hard disk video recorder, the live gateway of monitoring, streaming media server are connected successively with user terminal.
Monitor live gateway and obtain network that front end connects or the administration authority of digital hard disc video recorder by administration module is set, and the video camera that connects of load networks or digital hard disc video recorder.Received the video stream data of numeral or network hard disk video recorder output by input module, the video flowing of the video stream data receiving being decoded and be re-encoded as consolidation form by monitoring transcoding module on live gateway, exports to streaming media server by output module; Streaming media server, is distributed to the video flowing of reception the user terminal of access request.
The live gateway of described monitoring can connect NVR and the DVR of many different brands, different model simultaneously, and realize connected NVR and DVR(Digital Video Recorder, DVR) and the camera that is connected with DVR of NVR manage; The video flowing of different-format, different coding mode, when through the live gateway of monitoring, is monitored live gateway and can be carried out Unified coding to video, to adapt to transmission and part needs on the internet.
The working method of the live device of monitor video provided by the invention is: the video stream data that uses numeral or network hard disk video recorder to come camera acquisition is encoded, obtained again the video stream data of numeral or network hard disk video recorder output by the live gateway of monitoring, by video stream data recompile, by RTMP agreement, video streaming is given to the streaming media server that is deployed in public network machine room, and by streaming media server, video flowing is distributed to the user terminal of access request, by the player plays monitoring live video of user terminal, realize whole live process.
The live method of monitor video that the present invention proposes comprises following concrete step:
1) numeral or network hard disk video recorder are deployed in the local machine room of supervisory control system, the video information of coupled camera acquisition is encoded according to main bit stream and two kinds of code streams of subcode stream, and main bit stream is stored on the hard disk of DVR, subcode stream is sent to the live gateway of monitoring of the local machine room that is deployed in supervisory control system by unshielded twisted pair.
2) numeral or network hard disk video recorder use twisted pair line connection to the live gateway of monitoring, monitor live gateway obtains connected network or digital hard disc video recorder administration authority by administration module is wherein set, and the camera that connects of load networks or digital hard disc video recorder; Obtained the video stream data of numeral or network hard disk video recorder output by input module, by monitoring transcoding module on live gateway by the video stream data recompile receiving, the video flowing of output consolidation form.
3) in the time that streaming media server sends request, send the video flowing after consolidation form to video stream server by RTMP agreement by the output module of monitoring live gateway.
4) streaming media server that is deployed in public network machine room is connected with the live gateway of monitoring by IP network, in the time that user terminal player is initiated access request, video stream server obtains video flowing from monitoring live gateway, again video flowing is distributed to the user terminal player of access request, by user terminal player plays.
5), in the time of user terminal access video content, the built-in player of user terminal player can be play the video content from streaming media server distribution, realizes monitor video live.
The present invention is by the utilization of the live gateway of monitoring, the video flowing that can make the numeral of different brands different model or the video camera of network hard disk video recorder connection gather is unified into and is applicable to live code check and the agreement in the Internet, strengthen system compatibility, met most supervisory control systems to the live needs in the Internet.For the video source that there is no access request, monitor live gateway and can carry out transcoding transmission operation without Dui Gai road video source, reduce the pressure of local upstream bandwidth, reduce local disposition cost, realize the possibility of the multiple video pictures of little bandwidth for transmission.By the forwarding of streaming media server, can make various terminals use the built-in player of terminal can play live video under without client or browser plug-in are installed, without the prerequisite logging in.
Brief description of the drawings
Fig. 1 is the live installation composition block diagram of monitor video of the present invention.
Fig. 2 is the live method flow schematic diagram of monitor video of the present invention.
Fig. 3 is the workflow diagram of the live gateway of monitoring of the present invention.
Fig. 4 is that the live gateway of monitoring of the present invention is implemented illustration.
Fig. 5 is that streaming media server of the present invention is implemented illustration.
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Embodiment
Further describe the present invention below in conjunction with embodiment, but they not the restrictions any to the present invention.
Device, material etc. used in embodiment, not marked concrete application conditions and method, conventionally according to the condition described in normal condition and handbook, or the condition of advising according to manufacturer; Device, material etc. if no special instructions, are commercially available prod, all can obtain from commercial channels.
With reference to Fig. 1, Fig. 1 is the live installation composition block diagram of monitor video of the present invention.
The live device of monitor video provided by the invention comprises:
Video camera, for gathering video information; Video camera can be general analog video camera or ball-type analog video camera, and video camera is also general networking video camera or high definition web camera.
Numeral or network hard disk video recorder, encode the video information of camera acquisition and store video video recording;
Monitor live gateway, comprise input module, transcoding module and administration module, output module;
Described input module is for receiving the video stream data of numeral or network hard disk video recorder output.
Described transcoding module is for decoding the video stream data receiving and being re-encoded as the video flowing of consolidation form;
The video flowing of the consolidation form sending from transcoding module is exported to streaming media server by described output module;
Described administration module, for obtaining network that front end connects or the administration authority of digital hard disc video recorder, and the video camera that connects of load networks or digital hard disc video recorder.
Streaming media server is distributed to the video flowing of reception the user terminal of access request.
Player is responsible for displaying video picture.
The connected mode of the live device of monitor video provided by the invention is: video camera, numeral or network hard disk video recorder (NVR/DVR), monitor live gateway (MLG, Monitor Living Gateway), streaming media server and user terminal, connect successively.
The concrete video camera using of the present invention can be day and night type tube type web camera, and (Haikang prestige is looked; Model
:dS-2CD4212F-1), externally connect by unshielded twisted pair RJ-45 interface; Network hard disk video recorder (Net Video Recoder, NVR) (look by Haikang prestige; Model
:dS-NVR16-ST) be connected with video camera by unshielded twisted pair RJ-45 interface, be connected with the live gateway of monitoring by unshielded twisted pair RJ-45 interface; Monitor live gateway and be connected to net cast streaming media server by unshielded twisted pair RJ-45 interface; Monitor live gateway and be externally connected to the Internet and terminal;
Camera collection video information, complete coding work by network hard disk video recorder, monitor live gateway and directly obtain video flowing by network hard disk video recorder, and send video flowing to live broadcast stream media server by RTMP agreement, by streaming media server, video content is sent to the terminal equipment of access request, has play whole transmission of video process by the DST PLAYER in terminal equipment.
Specifically: IP Camera is responsible for monitor video picture, by video pictures real time communication to be connected to network hard disk video recorder NVR by unshielded twisted pair, NVR is by the data encoding receiving, according to two kinds of code stream codings, wherein main bit stream is kept at NVR this locality, subcode stream is transferred to the live gateway of monitoring by unshielded twisted pair, monitor the subcode stream recompile that live gateway sends the multiple NVR that receive, according to 1mbps, 512kbps, tri-kinds of code checks of 256kbps are encoded to it, in the time having user to watch certain road video by browser, monitor the suitable code stream of live gateway Jiang Gai road video and be sent to LDS(Living Distribution System), there is the terminal equipment (PC or other smart machine) of LDS distributing data to user.
Two kinds of code streams that described main bit stream and subcode stream provide for NVR encodes: main bit stream and subcode stream, main bit stream resolution is higher than subcode stream, and main bit stream is used for recording a video, and subcode stream is used for netting and passes.Main bit stream is for local storage, and subcode stream is applicable to image and transmits in low-bandwidth network.
With reference to Fig. 2-5, the step that a kind of live method of monitor video that the present invention proposes specifically comprises:
1. numeral or network hard disk video recorder are deployed in the local machine room of supervisory control system, be connected with video camera again, obtain thus the video information of camera acquisition, the video information of camera acquisition is encoded according to main bit stream and two kinds of code streams of subcode stream, and main bit stream is stored on the hard disk of DVR, subcode stream is sent to the live gateway of monitoring by unshielded twisted pair.
2. monitor live gateway, be deployed in the local machine room of supervisory control system, use twisted pair line connection to numeral or network hard disk video recorder.By being set, administration module obtains the administration authority of connected network or digital hard disc video recorder, and the camera that connects of load networks or digital hard disc video recorder.Obtained the video stream data of numeral or network hard disk video recorder output by input module, by the video stream data recompile receiving, export the video flowing of consolidation form by monitoring transcoding module on live gateway.In the time that streaming media server sends request, send the video flowing after consolidation form to streaming media server by RTMP agreement by output module.
3. streaming media server, be deployed in public network machine room, be connected with the live gateway of monitoring by IP network, in the time that user terminal player is initiated access request, streaming media server obtains video flowing from monitoring live gateway, again video flowing is distributed to the user terminal player of access request, by user terminal player plays monitoring live video.
4. player, is responsible for the live picture of displaying video.In the time of user terminal access video content, the built-in player of terminal can be play the video content from streaming media server distribution.
The scope of application of the present invention: all have the enterprise of monitor network or industry all can use this cover system, for example: each large enterprise, public security system is transferred monitoring video in all parts of the country in real time, urban construction department's supervision construction project, and traffic department produces sees road conditions etc.The video that uses the present invention that existing monitor network is recorded is live to the Internet in real time, and for supervision, corporate image is shown very large meaning, and operation is accurate, reliable: be arranged at present bonded automobile city, Tianjin, got a good review.
In a word, the present invention is meeting a large number of users under client and browser plug-in, prerequisite without login and is watching the demand of carrying out live monitor video picture by the Internet simultaneously without installing.Realize the management of the video camera to the network in supervisory control system or digital hard disc video recorder and connection thereof, shielding, without external live camera views, is isolated local monitoring system and the Internet, ensures the security of operation of supervisory control system simultaneously.
Claims (8)
1. the live device of monitor video, is characterized in that it comprises: video camera, for gathering video information; Numeral or network hard disk video recorder, encode the video information of camera acquisition and store video video recording; Monitor live gateway, comprise input module, transcoding module and administration module, output module; Described input module is for receiving the video stream data of numeral or network hard disk video recorder output.
2. the transcoding module described in is for decoding the video stream data receiving and being re-encoded as the video flowing of consolidation form; The video flowing of the consolidation form sending from transcoding module is exported to streaming media server by described output module; Described administration module, for obtaining network that front end connects or the administration authority of digital hard disc video recorder, and the video camera that connects of load networks or digital hard disc video recorder; Streaming media server, is distributed to the video flowing of reception the user terminal of access request; Player, is responsible for displaying video picture; Video camera, numeral or network hard disk video recorder, the live gateway of monitoring, streaming media server, player are connected successively with user terminal.
3. according to the live device of monitor video claimed in claim 1, it is characterized in that the described live gateway of monitoring obtains the network of front end connection or the administration authority of digital hard disc video recorder by the administration module arranging, and the video camera that connects of load networks or digital hard disc video recorder, received the video stream data of numeral or network hard disk video recorder output by input module, the video flowing of the video stream data receiving being decoded and be re-encoded as consolidation form by monitoring transcoding module on live gateway, exports to streaming media server by output module; Streaming media server is distributed to the video flowing of reception the user terminal of access request.
4. according to the live device of monitor video claimed in claim 1, it is characterized in that the described live gateway of monitoring connects NVR and the DVR of many different brands, different model simultaneously, and realize the camera that connected NVR and DVR and NVR are connected with DVR and manage; The video flowing of different-format, different coding mode, when through the live gateway of monitoring, is monitored live gateway and can be carried out Unified coding to video, to adapt to transmission and part needs on the internet.
5. the method that monitor video is live, it is characterized in that comprising following step: the video stream data that uses numeral or network hard disk video recorder to come camera acquisition is encoded, obtained again the video stream data of numeral or network hard disk video recorder output by the live gateway of monitoring, by video stream data recompile, by RTMP agreement, video streaming is given to the streaming media server that is deployed in public network machine room, and by streaming media server, video flowing is distributed to the user terminal of access request, by the player plays monitoring live video of user terminal, realize whole live process.
6. the live method of monitor video, is characterized in that specifically comprising following step:
1) numeral or network hard disk video recorder are deployed in the local machine room of supervisory control system, the video information of coupled camera acquisition is encoded according to main bit stream and two kinds of code streams of subcode stream, and main bit stream is stored on the hard disk of DVR, subcode stream is sent to the live gateway of monitoring of the local machine room that is deployed in supervisory control system by unshielded twisted pair;
2) numeral or network hard disk video recorder use twisted pair line connection to the live gateway of monitoring, monitor live gateway obtains connected network or digital hard disc video recorder administration authority by administration module is wherein set, and the camera that connects of load networks or digital hard disc video recorder; Obtained the video stream data of numeral or network hard disk video recorder output by input module, by monitoring transcoding module on live gateway by the video stream data recompile receiving, the video flowing of output consolidation form;
3) in the time that streaming media server sends request, send the video flowing after consolidation form to video stream server by RTMP agreement by the output module of monitoring live gateway;
4) streaming media server that is deployed in public network machine room is connected with the live gateway of monitoring by IP network, in the time that user terminal player is initiated access request, video stream server obtains video flowing from monitoring live gateway, again video flowing is distributed to the user terminal player of access request, by user terminal player plays;
5), in the time of user terminal access video content, the built-in player of user terminal player can be play the video content from streaming media server distribution, realizes monitor video live.
7. in accordance with the method for claim 6, IP Camera described in it is characterized in that is responsible for monitor video picture, by video pictures real time communication to be connected to network hard disk video recorder NVR by unshielded twisted pair, NVR is by the data encoding receiving, according to two kinds of code stream codings, wherein main bit stream is kept at NVR this locality, subcode stream is transferred to the live gateway of monitoring by unshielded twisted pair, monitor the subcode stream recompile that live gateway sends the multiple NVR that receive, according to 1mbps, 512kbps, tri-kinds of code checks of 256kbps are encoded to it, in the time having user to watch certain road video by browser, monitor the suitable code stream of live gateway Jiang Gai road video and be sent to LDS, there is the terminal equipment of LDS distributing data to user.
8. in accordance with the method for claim 6, it is characterized in that two kinds of code streams that described main bit stream and subcode stream provide for NVR encodes: main bit stream and subcode stream, main bit stream resolution is higher than subcode stream, and main bit stream is used for recording a video, and subcode stream is used for netting and passes; Main bit stream is for local storage, and subcode stream is applicable to image and transmits in low-bandwidth network.
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