CN101184213A - Network based video monitoring system and method - Google Patents
Network based video monitoring system and method Download PDFInfo
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- CN101184213A CN101184213A CNA2007101778570A CN200710177857A CN101184213A CN 101184213 A CN101184213 A CN 101184213A CN A2007101778570 A CNA2007101778570 A CN A2007101778570A CN 200710177857 A CN200710177857 A CN 200710177857A CN 101184213 A CN101184213 A CN 101184213A
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Abstract
The invention discloses a video monitoring system based on the network and a video monitoring method based on the network. The system comprises a monitoring terminal, a central platform and a video wall; wherein, the central platform is used to store media code stream sent by the monitoring terminal and distribute the media code stream to a channel of the video wall; and the video wall is used to convert the media code stream into analog audio and video signals and play video monitor recording. The invention has the advantages that digital video signals are transmitted via the broadband network, thus maintenance is convenient and monitoring range is wide; multi-channel digital video signals in the network video monitoring system are converted into analog signals and transmitted to the video wall for output with a multi-channel audio and video decoder, thus large monitoring images with high resolution are obtained; and audio signals can be monitored due to the addition of control of a special console to the monitoring process.
Description
Technical field
The present invention relates to the video monitoring technology, be specifically related to a kind of based on network video monitoring system and method.
Background technology
Traditional video monitoring system is a kind of analog video supervisory control system, and the analog video supervisory control system is made up of front monitoring front-end and video wall.In the analog video supervisory control system, the video camera of front end sends to the matrix monitoring host computer by vision cable with analog video signal, and the matrix monitoring host computer is transported to the analog video signal of receiving on the master-control room video wall again, for user monitoring, wherein, video wall is made up of some display terminals.Because vision cable can only the transmission of one line analog video signal, if the control point disperses, just needs to lay the multitude of video cable, cause cost height, easy care not, very difficult realization remote monitoring on a large scale; And in traditional video monitoring system, because every road vision cable is relatively independent, be difficult on the whole each road vision signal be controlled, if every vision cable is outputting video signal and audio signal all, then can have a strong impact on monitoring effect, so traditional video monitoring system is not generally monitored audio signal.
For overcoming above-mentioned drawback, patent of invention CN02125513 has proposed a kind of network digital video monitoring system, this system is applied to field of video monitoring with the wideband digital technology, analog video signal is carried out after code conversion is digital video bit stream, carry out the digital video bitstream flow transmission by broadband network, re-use special-purpose decoding software and realize video monitoring on computers.All to use a vision cable to carry out transmission manner though this scheme has changed each headend equipment, have wiring less, easy to maintenance, advantage such as monitoring range is wide.But this scheme is subjected to the restriction of machine performance and screen size by the computer monitoring multi-channel video, has problems such as monitoring image is little, image resolution ratio is low, nor can monitor audio signal.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of based on network video monitoring system and method, and not only easy to maintenance, monitoring range is wide, can monitor audio signal, and has big and the higher monitoring image of resolution.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of based on network video monitoring system, this system comprises: front monitoring front-end, central platform and video wall, wherein, front monitoring front-end is used to record front end video recording and the front end video recording code conversion of recording is become the medium code stream, the media code after the conversion is spread deliver to central platform; Central platform is used to store the medium code stream that front monitoring front-end sends, and with the passage of media code stream distribution to video wall; Video wall is used for changing the media code circulation into the analog audio-video signal, and the displaying video monitoring video.
Described video wall is made up of at least one multichannel audio-video frequency decoder, control desk and at least one display terminal, and the multichannel audio-video frequency decoder is used for the media code circulation of central platform distribution is changed to the multi-channel analog audio-video signal, is sent to display terminal; Display terminal is used for the playing audio-video monitoring video; Control desk is used for the video monitoring process is controlled.
Described central platform comprises Distributor and storage server, Distributor is used for giving the multichannel audio-video frequency decoder with the media code stream distribution of front monitoring front-end or storage server transmission, storage server is used to store the medium code stream that Distributor transmits in a period of time, when time shift operation the media code of storage is spread and delivers to Distributor.
A kind of based on network video frequency monitoring method, this method comprises:
Behind the monitor command that a, multichannel audio-video frequency decoder reception user send, send monitoring request in real time to central platform;
After b, central platform are received real-time monitoring request, send the real-time media code stream to the multichannel audio-video frequency decoder;
C, multichannel audio-video frequency decoder convert the real-time media code stream of receiving to the analog audio-video signal, and described analog audio-video signal is sent to display terminal carry out monitoring video and play.
Further comprise before the described step a: front monitoring front-end is recorded front end video recording, and the front end video recording code conversion of recording is become the medium code stream, sends the real-time media code stream to central platform then.
Carry the passage of the responsible monitoring of appointment in the described monitor command of step a.
This method further comprises time shift operation, is specially: during front monitoring front-end generation alert event, front monitoring front-end sends warning message to control desk; After the user is known warning message by control desk, send time shift monitoring request to central platform; Central platform is received time shift monitoring request, sends time shift code stream to the user.
Described central platform further comprises after receiving time shift monitoring request: judge whether current front monitoring front-end supports the time shift monitoring, if support, then sends time shift code stream to the user, otherwise, send the refusal solicited message to the user.
This method further comprises quiet operation, is specially: the user sends mute command by control desk to the multichannel audio-video frequency decoder; After the multichannel audio-video frequency decoder is received mute command, remove the audio signal in the analog audio-video signal that sends monitor channel to, only send video analog signal to display terminal.
This method further comprises the quiet operation of cancellation, and be specially: the user sends the cancellation mute command by control desk to the multichannel audio-video frequency decoder; The multichannel audio-video frequency decoder keeps the audio signal in the analog audio-video signal that sends monitor channel to after receiving the cancellation mute command.
Employing the present invention is based on the video monitoring system and the method for network, analog video signal is carried out carrying out digital signal transmission by broadband network, so after code conversion is digital video signal, can reduce wiring, maintenance is more convenient, monitoring range is wider thereby make.In addition, the present invention also changes into analog signal by the multichannel audio-video frequency decoder with the multipath digital video signal in the network video monitor and control system, by vision cable analog signal transmission to video wall is exported again, so, can provide image the big and higher monitoring image of resolution.Because the present invention has increased uniset console, monitor procedure is controlled, therefore can monitor audio signal.
Description of drawings
Fig. 1 is the video monitoring system structure chart that the present invention is based on network;
Fig. 2 is the video frequency monitoring method flow chart that the present invention is based on network;
Video monitoring flow chart when Fig. 3 asks the time shift monitoring for user of the present invention.
Embodiment
The present invention is based on the video monitoring system and the method for network, analog video signal is carried out after code conversion is digital video signal, carry out digital signal transmission by broadband network, by the multichannel audio-video frequency decoder multipath digital video signal in the network video monitor and control system is changed into analog signal again, by vision cable analog signal transmission to video wall is exported again.
Below by specific embodiment video monitoring system and the method that the present invention is based on network is described in further detail.
Fig. 1 is the video monitoring system structure chart that the present invention is based on network, and as shown in Figure 1, the video monitoring system that the present invention is based on network is made up of front monitoring front-end, central platform and video wall.Front monitoring front-end is used to record front end video recording and the front end video recording code conversion of recording is become the medium code stream, the media code after the conversion is spread deliver to central platform; Central platform is used to store the medium code stream that front monitoring front-end sends, and with the passage of media code stream distribution to video wall; Video wall is used for changing the media code circulation into the analog audio-video signal, and the displaying video monitoring video.
Wherein, video wall is made up of at least one multichannel audio-video frequency decoder, control desk and at least one display terminal, and the multichannel audio-video frequency decoder is used for the media code circulation of central platform distribution is changed to the multi-channel analog audio-video signal, is sent to display terminal; Display terminal is used for the playing audio-video monitoring video, can be television set, display etc.; Control desk is used for the video monitoring process is controlled, such as: time shift control, quiet control etc.
Central platform comprises Distributor and storage server, Distributor is used for giving the multichannel audio-video frequency decoder with the media code stream distribution of front monitoring front-end or storage server transmission, storage server is used to store the medium code stream that Distributor transmits in a period of time, and when time shift operation the media code of storage is spread and deliver to Distributor.
Fig. 2 is the video frequency monitoring method flow chart that the present invention is based on network, and as shown in Figure 2, the video monitoring flow process that the present invention is based on network comprises:
Step 201: front monitoring front-end is recorded front end video recording and the front end video recording code conversion of recording is become the medium code stream after starting, and sends the real-time media code stream to central platform then.Wherein, described medium code stream comprises video code flow and audio code stream.
Here, control desk sends to the passage of having specified responsible monitoring in the monitor command of multichannel audio-video frequency decoder, has promptly specified the display terminal of playing monitoring video.In addition, central platform is directly to send the real-time media code stream by Distributor to the multichannel audio-video frequency decoder.
When front monitoring front-end generation alert event, can monitor the monitoring video of checking in the past period by time shift, so that the user makes judgement more in time, takes measures, video monitoring flow chart when Fig. 3 asks the time shift monitoring for user of the present invention, video monitoring when as shown in Figure 3, user of the present invention asks the time shift monitoring comprises:
Step 301～step 306: with step 205～step 206.
Step 307: under the situation of front monitoring front-end generation alert event, front monitoring front-end sends warning message to control desk.
Here, alert event can be set according to the situation of monitoring, is lower than set point or volume greater than set point etc. as temperature.
Step 308～step 310: control desk sends the time shift order to the multichannel audio-video frequency decoder, the multichannel audio-video frequency decoder sends time shift monitoring request to center control platform after receiving the time shift order, center control platform judges whether front monitoring front-end supports the time shift monitoring after receiving time shift monitoring request, if, execution in step 311～step 313 then; Otherwise, execution in step 314.
Step 311～step 313: center control platform sends time shift medium code stream to the multichannel audio-video frequency decoder, after the multichannel audio-video frequency decoder is changed to the analog audio-video signal with the time shift media code circulation of receiving, be sent to display terminal and carry out the monitoring video broadcast, the display terminal that carries out the monitoring video broadcast is the display terminal of monitor command appointment.
Time shift medium code stream is meant the medium code stream of the past period, is stored by storage server.For example, storage server is used for storing five minutes medium code stream, and then storage server upgraded once every five minutes, and the medium code stream of renewal is current time the first five minute medium code stream to current time.After center control platform was received time shift monitoring request, the process that sends time shift medium code stream to the multichannel audio-video frequency decoder was: storage server spreads the media code of storing delivers to Distributor, is distributed to the multichannel audio-video frequency decoder by Distributor again.
Step 314: center control platform sends refuse information to the multichannel audio-video frequency decoder.
The video frequency monitoring method that the present invention is based on network can also carry out operation quiet and that cancellation is quiet to the passage of multichannel audio-video frequency decoder, the noisy problem of both having avoided multichannel voice frequency to export simultaneously, can carry out targetedly sound again and listen to, described quiet being operating as: the user sends mute command by control desk to the multichannel audio-video frequency decoder; After the multichannel audio-video frequency decoder is received mute command, remove the audio signal in the analog audio-video signal that sends monitor channel to, only send video analog signal;
Described cancellation is quiet to be operating as: the user sends the cancellation mute command by control desk to the multichannel audio-video frequency decoder; The multichannel audio-video frequency decoder keeps the audio signal in the analog audio-video signal that sends monitor channel to after receiving the cancellation mute command.
The video frequency monitoring method that the present invention is based on network is under initial situation, and acquiescence is monitored under silent mode.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1. based on network video monitoring system, it is characterized in that this system comprises: front monitoring front-end, central platform and video wall, wherein, front monitoring front-end is used to record front end video recording and the front end video recording code conversion of recording is become the medium code stream, the media code after the conversion is spread deliver to central platform; Central platform is used to store the medium code stream that front monitoring front-end sends, and with the passage of media code stream distribution to video wall; Video wall is used for changing the media code circulation into the analog audio-video signal, and the displaying video monitoring video.
2. system according to claim 1, it is characterized in that, described video wall is made up of at least one multichannel audio-video frequency decoder, control desk and at least one display terminal, the multichannel audio-video frequency decoder is used for the media code circulation of central platform distribution is changed to the multi-channel analog audio-video signal, is sent to display terminal; Display terminal is used for the playing audio-video monitoring video; Control desk is used for the video monitoring process is controlled.
3. system according to claim 1, it is characterized in that, described central platform comprises Distributor and storage server, Distributor is used for giving the multichannel audio-video frequency decoder with the media code stream distribution of front monitoring front-end or storage server transmission, storage server is used to store the medium code stream that Distributor transmits in a period of time, when time shift operation the media code of storage is spread and delivers to Distributor.
4. a based on network video frequency monitoring method is characterized in that, this method comprises:
Behind the monitor command that a, multichannel audio-video frequency decoder reception user send, send monitoring request in real time to central platform;
After b, central platform are received real-time monitoring request, send the real-time media code stream to the multichannel audio-video frequency decoder;
C, multichannel audio-video frequency decoder convert the real-time media code stream of receiving to the analog audio-video signal, and described analog audio-video signal is sent to display terminal carry out monitoring video and play.
5. method according to claim 4 is characterized in that, further comprise before the described step a: front monitoring front-end is recorded front end video recording, and the front end video recording code conversion of recording is become the medium code stream, sends the real-time media code stream to central platform then.
6. method according to claim 4 is characterized in that, carries the passage of the responsible monitoring of appointment in the described monitor command of step a.
7. method according to claim 4 is characterized in that, this method further comprises time shift operation, is specially: during front monitoring front-end generation alert event, front monitoring front-end sends warning message to control desk; After the user is known warning message by control desk, send time shift monitoring request to central platform; Central platform is received time shift monitoring request, sends time shift code stream to the user.
8. method according to claim 7 is characterized in that, described central platform further comprises after receiving time shift monitoring request: judge whether current front monitoring front-end supports the time shift monitoring, if support, then send time shift code stream to the user, otherwise, the refusal solicited message sent to the user.
9. method according to claim 4 is characterized in that, this method further comprises quiet operation, is specially: the user sends mute command by control desk to the multichannel audio-video frequency decoder; After the multichannel audio-video frequency decoder is received mute command, remove the audio signal in the analog audio-video signal that sends monitor channel to, only send video analog signal to display terminal.
10. method according to claim 4 is characterized in that, this method further comprises the quiet operation of cancellation, and be specially: the user sends the cancellation mute command by control desk to the multichannel audio-video frequency decoder; The multichannel audio-video frequency decoder keeps the audio signal in the analog audio-video signal that sends monitor channel to after receiving the cancellation mute command.
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| CNA2007101778570A CN101184213A (en) | 2007-11-21 | 2007-11-21 | Network based video monitoring system and method |
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| CNA2007101778570A CN101184213A (en) | 2007-11-21 | 2007-11-21 | Network based video monitoring system and method |
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| WO2010040307A1 (en) * | 2008-10-10 | 2010-04-15 | 华为技术有限公司 | Route scheduling method, device and system for media stream monitoring |
| CN101938638A (en) * | 2010-09-14 | 2011-01-05 | 南京航空航天大学 | Network video monitoring system based on resolution ratio grading transmission |
| CN101959059A (en) * | 2010-09-27 | 2011-01-26 | 深圳市同洲电子股份有限公司 | Video monitoring method, device and system |
| CN102204247A (en) * | 2010-04-13 | 2011-09-28 | 华为技术有限公司 | Method of digital control analogue, method of analogue control digital and digital video monitoring system |
| CN102665116A (en) * | 2012-03-30 | 2012-09-12 | 广东白云学院 | Internet-based video-audio transmission system and video-audio stream distribution method thereof |
| CN102724518A (en) * | 2012-05-16 | 2012-10-10 | 浙江大华技术股份有限公司 | High-definition video signal transmission method and device |
| CN101605253B (en) * | 2009-07-17 | 2013-01-16 | 浙江宇视科技有限公司 | Control method and apparatus for video storage |
| CN103475856A (en) * | 2013-07-11 | 2013-12-25 | 国家广播电影电视总局广播科学研究院 | Video monitoring system applied to broadcast and TV network |
| CN103888716A (en) * | 2012-12-21 | 2014-06-25 | 浙江大华技术股份有限公司 | Video signal display control method, device and system |
| CN104168453A (en) * | 2014-08-01 | 2014-11-26 | 东莞市星谷信息科技有限公司 | Method for implementing video monitoring stream media application system |
| CN108400952A (en) * | 2017-02-06 | 2018-08-14 | 成都鼎桥通信技术有限公司 | History video dispatching retransmission method, equipment and system |
| CN111131725A (en) * | 2019-12-25 | 2020-05-08 | 上海文化广播影视集团有限公司 | System and method for monitoring multi-picture video signal |
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- 2007-11-21 CN CNA2007101778570A patent/CN101184213A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2010040307A1 (en) * | 2008-10-10 | 2010-04-15 | 华为技术有限公司 | Route scheduling method, device and system for media stream monitoring |
| CN101729378B (en) * | 2008-10-10 | 2012-07-04 | 华为技术有限公司 | Routing scheduling method, device and system of media stream monitoring |
| CN101605253B (en) * | 2009-07-17 | 2013-01-16 | 浙江宇视科技有限公司 | Control method and apparatus for video storage |
| WO2011127648A1 (en) * | 2010-04-13 | 2011-10-20 | 华为技术有限公司 | Digit-control-analog method, analog-control-digit method and digital video monitoring system |
| CN102204247A (en) * | 2010-04-13 | 2011-09-28 | 华为技术有限公司 | Method of digital control analogue, method of analogue control digital and digital video monitoring system |
| CN101938638A (en) * | 2010-09-14 | 2011-01-05 | 南京航空航天大学 | Network video monitoring system based on resolution ratio grading transmission |
| CN101959059A (en) * | 2010-09-27 | 2011-01-26 | 深圳市同洲电子股份有限公司 | Video monitoring method, device and system |
| CN102665116A (en) * | 2012-03-30 | 2012-09-12 | 广东白云学院 | Internet-based video-audio transmission system and video-audio stream distribution method thereof |
| US9232204B2 (en) | 2012-05-16 | 2016-01-05 | Zhejiang Dahua Technology Co., Ltd | Method and device for transmitting high-definition video signal |
| CN102724518A (en) * | 2012-05-16 | 2012-10-10 | 浙江大华技术股份有限公司 | High-definition video signal transmission method and device |
| US9832443B2 (en) | 2012-05-16 | 2017-11-28 | Zhejiang Dahua Technology Co., Ltd. | Method and device for transmitting high-definition video signal |
| CN103888716A (en) * | 2012-12-21 | 2014-06-25 | 浙江大华技术股份有限公司 | Video signal display control method, device and system |
| CN103888716B (en) * | 2012-12-21 | 2017-11-21 | 浙江大华技术股份有限公司 | A kind of method, apparatus and system for controlling vision signal to show |
| CN103475856A (en) * | 2013-07-11 | 2013-12-25 | 国家广播电影电视总局广播科学研究院 | Video monitoring system applied to broadcast and TV network |
| CN104168453A (en) * | 2014-08-01 | 2014-11-26 | 东莞市星谷信息科技有限公司 | Method for implementing video monitoring stream media application system |
| CN108400952A (en) * | 2017-02-06 | 2018-08-14 | 成都鼎桥通信技术有限公司 | History video dispatching retransmission method, equipment and system |
| CN111131725A (en) * | 2019-12-25 | 2020-05-08 | 上海文化广播影视集团有限公司 | System and method for monitoring multi-picture video signal |
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