CN102547221A - Video recording and network transmitting method based on motion detection - Google Patents
Video recording and network transmitting method based on motion detection Download PDFInfo
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- CN102547221A CN102547221A CN2010105905100A CN201010590510A CN102547221A CN 102547221 A CN102547221 A CN 102547221A CN 2010105905100 A CN2010105905100 A CN 2010105905100A CN 201010590510 A CN201010590510 A CN 201010590510A CN 102547221 A CN102547221 A CN 102547221A
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Abstract
The invention discloses a video recording and network transmitting method based on motion detection. A motion detection timer acquires a current image frame of monitoring equipment, uses the current image frame as a reference frame for motion detection so as to carry out detection and reckons by time, the monitoring equipment enters a pre-recording state if motion detection events do not occur before due time of the motion detection timer, and the monitoring equipment enters a real-time recording state if a motion detection event occurs before the due time of the motion detection timer. The video recording and network transmitting method based on motion detection solves problem that when monitoring videos which are shot by monitoring equipment are checked via a network in the prior art, the requirement on transmission bandwidth of the network is high, and image stagnation can be caused due to insufficient bandwidth when multiple channels are used for monitoring simultaneously.
Description
Technical field
The present invention relates to a kind of communication technology, relate in particular to a kind of video record and network transfer method based on mobile detection.
Background technology
Watch-dog is the computer system that a cover carries out the image stores processor; Have to image/voice record a video for a long time, the function of recording, telemonitoring and control, gathered five kinds of functions such as video tape recorder, image splitter, the control of The Cloud Terrace camera lens, controlling alarm, Network Transmission.What watch-dog adopted is digital recording.
The meaning of mobile detection is, when picture changes, passes by if any the people, and camera lens is moved, and system can make corresponding processing automatically.Sensitivity, the search coverage of the time of withdrawing a garrison of deploying troops on garrison duty, detecting should be set.When triggering, answer linkage video recording, interlink warning output, linkage camera to forward corresponding presetting bit to.
The adding of mobile detection makes that the practicality of watch-dog is stronger, makes watch-dog have the function of induction, can select only to take the object that moves, and has practiced thrift memory space greatly, has increased the memory space of video segment.
Now use more watch-dog to be DVR and network video server.The user can open a certain passage checking monitoring video recording of watch-dog through the network terminal, and the ten minutes that makes monitoring become is convenient.
Client's modes that adopt real-time Transmission when the monitoring video of taking through network checking monitoring equipment cause the Network Transmission bandwidth demand very high more in the prior art, when multichannel is monitored simultaneously, occur easily because bandwidth causes the situation of build up of image retention inadequately.
Summary of the invention
The invention discloses a kind of video record and network transfer method based on mobile detection; The Network Transmission bandwidth demand is very high when solving the monitoring video of taking through network checking monitoring equipment in the prior art, when multichannel is monitored simultaneously, occurs easily because bandwidth causes the problem of the situation of build up of image retention inadequately.
Above-mentioned purpose of the present invention realizes through following technical scheme:
A kind of video record and network transfer method based on mobile detection, wherein, a mobile detection timer obtains the current image frame of watch-dog; And detect said current image frame as the reference frame of mobile detection; And carry out timing, if before said mobile detection timer expiry, there is not the mobile detection incident to take place, then watch-dog gets into the picture state of pre-recording; Otherwise watch-dog gets into real-time video state.
Aforesaid video cassette recorder network transfer method; Wherein, When watch-dog is in real-time video state, watch-dog sends the real-time video of taking to user terminal, when watch-dog is in the picture state of pre-recording; Watch-dog only sends the field that comprises auxiliary enhanced information and gives client, and keeps the session persistence of watch-dog and user terminal to be in active state.
Aforesaid video record and network transfer method wherein, are set the length of the picture of pre-recording through watch-dog.
Aforesaid video record and network transfer method, wherein, the field of said auxiliary enhanced information includes temporal information and channel information.
Aforesaid video record and network transfer method wherein, also comprise video recording method, and it comprises: said watch-dog starts the back and gets into the picture state of pre-recording; Be stored in the content of the picture of pre-recording in the Device memory temporarily; Said watch-dog is detecting after the monitoring objective image has object to occur or disappear, with the content stores of the said picture of pre-recording of storage temporarily in hard disk.
Aforesaid video record and network transfer method, wherein, after watch-dog was moved the detecting Event triggered, the content that watch-dog will be recorded a video in real time stored in the hard disk of watch-dog with the content of the picture of pre-recording.
Aforesaid video record and network transfer method, wherein, only after said watch-dog got into real-time video state, watch-dog just sent real-time frame data to give client terminal.
Aforesaid video record and network transfer method, wherein, the content that watch-dog is photographed is stored in the internal memory with the mode that frame head adds the frame buffering.
Aforesaid video record and network transfer method, wherein, said frame head includes the type of frame, the original position and the frame length of frame data.
In sum; The Network Transmission bandwidth demand was very high when video record and the network transfer method that the present invention is based on mobile detection solved the monitoring video of taking through network checking monitoring equipment in the prior art, when multichannel is monitored simultaneously, occurred easily because bandwidth causes the problem of the situation of build up of image retention inadequately.
Description of drawings
Fig. 1 is the flow chart of embodiment one that the present invention is based on video record and the network transfer method of mobile detection;
Fig. 2 is the flow chart of embodiment two that the present invention is based on video record and the network transfer method of mobile detection.
Embodiment
Be further described below in conjunction with the accompanying drawing specific embodiments of the invention:
Embodiment (one)
Fig. 1 is the flow chart of embodiment one that the present invention is based on video record and the network transfer method of mobile detection, sees also Fig. 1, a kind of video record and network transfer method based on mobile detection; Wherein, a mobile detection timer obtains the current image frame of watch-dog, wherein; Current image frame is the I frame when H.264 encoding, and under the MJpeg form, for the current frame that obtains, and detects picture frame in the ban as the reference frame of mobile detection; And carry out timing, if before the mobile detection timer expiry, there is not the mobile detection incident to take place, then watch-dog gets into the picture state of pre-recording; Otherwise watch-dog gets into real-time video state, in general; After watch-dog started, watch-dog directly got into the picture state of pre-recording, and under the picture state of pre-recording, the mobile detection incident took place; The mobile detection timer picks up counting, and removes the mobile detection event flag and gets into real-time video state immediately; When watch-dog is provided with the mobile detection event flag after video state receives the mobile detection Event triggered in real time, at the mobile detection timer expiry, if the mobile detection time mark is provided with; Then remove the mobile detection event flag and reset the mobile detection timer, watch-dog still is in real-time video state, otherwise; Stop mobile detection and regularly get into the picture state of pre-recording; Make watch-dog be operated under the two states, the time span of in internal memory, preserving as content of pre-recording can be set, and in the setting-up time section, does not have the mobile detection incident to take place in the scope of watch-dog monitoring; Then watch-dog gets into the picture state of pre-recording; In the internal memory of watch-dog, after the mobile detection incident took place, watch-dog got into real-time video state with the content stores of recording a video; Watch-dog is taken the video recording in the guarded region in real time, and the content of the picture of will pre-recording stores in the hard disk of watch-dog with the content of recording a video in real time in the lump.
Work as watch-dog in the present embodiment and be in real-time video state, watch-dog sends the real-time video of taking through network to client terminal, when watch-dog is in the picture state of pre-recording; Watch-dog only sends the field that comprises auxiliary enhanced information and gives client; In order to keeping the watch-dog and the session persistence of user terminal to be in active state,, make that the volume of transmitted data of watch-dog and client terminal differs widely under different conditions through differentiation to pre-record picture state and real-time video state; When real-time video state; Watch-dog sends the real-time video of taking to client terminal, and at this moment the volume of transmitted data of network is bigger, for having relatively high expectations of network; And when pre-recording the picture state; Watch-dog only sends a spot of field that comprises auxiliary enhanced information and gives client terminal, and at this moment the data volume of Network Transmission is very little, takies the resource of network hardly; So the information that watch-dog in fact only transmits the enforcement video recording makes and reduces greatly in the less relatively scene lower network transmission broadband demand of monitored object activity to client.
Through watch-dog the length of video recording is set in this enforcement,, can be made amendment to the length of video recording through watch-dog, make watch-dog can note the process that whole event takes place accurately according to different demands to guarantee the integrality of video recording.
Auxiliary enhanced information field in the present embodiment includes temporal information and channel information; The effect of auxiliary enhanced information field only is to keep the session persistence of watch-dog and client terminal to be in active state; So auxiliary enhanced information field only comprises extremely a spot of content; The auxiliary enhanced information field of continual transmission can not made pressure to Network Transmission between monitoring equipment and the client; The english abbreviation of auxiliary enhanced information field is SEI, and auxiliary enhanced information field is not participated in the decoding of client terminal.
Embodiment (two)
Fig. 2 is the flow chart of embodiment two that the present invention is based on video record and the network transfer method of mobile detection, sees also Fig. 2, on the basis of embodiment one; The present invention also comprises video recording method, and it comprises: watch-dog starts the back and gets into the picture state of pre-recording, and will be stored in the Device memory with the content of video recording temporarily; Watch-dog is after detecting the having object to occur or disappear of monitoring objective, and in hard disk, watch-dog is operated in two states after starting with the video recording content stores of storage temporarily; When not having the mobile detection incident to take place, watch-dog is stored in the content of video recording in the Device memory temporarily, and the length of video recording storage is a set point; The video clip that exceeds the set point part will be deleted, and the space of the picture content of therefore pre-recording committed memory can be not too many, in the absence that the mobile detection incident takes place; The content of picture of pre-recording can not store in the hard disk; Therefore practiced thrift the space that takies hard disk greatly, and after the mobile detection incident takes place, watch-dog will be recorded a video the content real-time storage in hard disk; And the content of the picture of will pre-recording is stored in the hard disk together
Also comprising of present embodiment: through watch-dog said pre-recording set as the time span of content stores, can be set the time span of the picture content stores of pre-recording according to actual needs, guarantee to have stored the integrality of rear video fragment.
In the present embodiment watch-dog be moved the detecting Event triggered after; The content that watch-dog will be recorded a video in real time stores in the hard disk of watch-dog with the content of the picture of pre-recording; In the lump store in hard disk with the content of recording a video in real time the content of the picture of pre-recording; Purpose is to make video more complete, the overall process of event in this video record fragment of understanding that the user can be complete when having access to certain section video record fragment.
In the present embodiment only after said watch-dog gets into real-time video state; Watch-dog just send real-time frame data to give client terminal; Only making that watch-dog just can transmit data under video state in real time gives client terminal; And then make the transfer of data between watch-dog and the client terminal reduce, particularly under the less relatively scene of monitored object activity, reduce greatly for the demand in Network Transmission broadband.
The content that in the present embodiment watch-dog is photographed is stored in the internal memory with the mode that frame head adds frame buffering, and frame head adopts the mode of circulation array to organize, and stores n frame data (n>GOP, guarantee to comprise an effective I frame at least in the Buffer Pool) at most.
Frame head includes the type of frame, the original position and the frame length of frame data in the present embodiment.
In sum; The Network Transmission bandwidth demand was very high when video record and the network transfer method that the present invention is based on mobile detection solved the monitoring video of taking through network checking monitoring equipment in the prior art, when multichannel is monitored simultaneously, occurred easily because bandwidth causes the problem of the situation of build up of image retention inadequately.
More than specific embodiment of the present invention is described in detail, but it is just as example, the present invention is not restricted to the specific embodiment of above description.To those skilled in the art, any equivalent modifications that the present invention is carried out with substitute also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of being done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (9)
1. video record and network transfer method based on a mobile detection is characterized in that, a mobile detection timer obtains the current image frame of watch-dog; And detect said current image frame as the reference frame of mobile detection; And carry out timing, if before said mobile detection timer expiry, there is not the mobile detection incident to take place, then watch-dog gets into the picture state of pre-recording; Otherwise watch-dog gets into real-time video state.
2. video cassette recorder network transfer method according to claim 1; It is characterized in that; When watch-dog is in real-time video state, watch-dog sends the real-time video of taking to user terminal, when watch-dog is in the picture state of pre-recording; Watch-dog only sends the field that comprises auxiliary enhanced information and gives client, and keeps the session persistence of watch-dog and user terminal to be in active state.
3. video record according to claim 2 and network transfer method is characterized in that, through watch-dog the length of the picture of pre-recording are set.
4. video record according to claim 2 and network transfer method is characterized in that the field of said auxiliary enhanced information includes temporal information and channel information.
5. video record according to claim 1 and network transfer method is characterized in that, also comprise video recording method, and it comprises: said watch-dog starts the back and gets into the picture state of pre-recording; Be stored in the content of the picture of pre-recording in the Device memory temporarily; Said watch-dog is detecting after the monitoring objective image has object to occur or disappear, with the content stores of the said picture of pre-recording of storage temporarily in hard disk.
6. video record according to claim 5 and network transfer method is characterized in that, after watch-dog was moved the detecting Event triggered, the content that watch-dog will be recorded a video in real time stored in the hard disk of watch-dog with the content of the picture of pre-recording.
7. video record according to claim 5 and network transfer method is characterized in that, only after said watch-dog got into real-time video state, watch-dog just sent real-time frame data to give client terminal.
8. video record according to claim 5 and network transfer method is characterized in that, the content that watch-dog is photographed is stored in the internal memory with the mode that frame head adds the frame buffering.
9. video record according to claim 8 and network transfer method is characterized in that, said frame head includes the type of frame, the original position and the frame length of frame data.
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| CN2010105905100A CN102547221A (en) | 2010-12-16 | 2010-12-16 | Video recording and network transmitting method based on motion detection |
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| CN2010105905100A CN102547221A (en) | 2010-12-16 | 2010-12-16 | Video recording and network transmitting method based on motion detection |
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| CN102938829A (en) * | 2012-10-12 | 2013-02-20 | 天津市亚安科技股份有限公司 | Method for realizing prerecording of real-time audio/video stream |
| CN103338351A (en) * | 2013-06-05 | 2013-10-02 | 深圳市宏电技术股份有限公司 | A method, an apparatus, and a system for monitoring video data uploading through utilizing a wireless network |
| CN104506934A (en) * | 2014-12-25 | 2015-04-08 | 合肥寰景信息技术有限公司 | Video processing method capable of saving storage space |
| CN104580974A (en) * | 2015-01-30 | 2015-04-29 | 成都华迈通信技术有限公司 | Intelligent monitoring video playback method |
| CN107093436A (en) * | 2017-03-10 | 2017-08-25 | 青岛海信移动通信技术股份有限公司 | The storage method and device of the audio, video data pre-recorded, mobile terminal |
| CN111047875A (en) * | 2019-12-20 | 2020-04-21 | 北京看路科技有限公司 | System and method for rapidly reporting traffic violation behaviors during driving |
| CN111405220A (en) * | 2019-09-30 | 2020-07-10 | 杭州海康威视系统技术有限公司 | Video prerecording method and cloud storage system |
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| CN107093436B (en) * | 2017-03-10 | 2020-02-04 | 青岛海信移动通信技术股份有限公司 | Prerecorded audio and video data storage method and device and mobile terminal |
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| CN111047875A (en) * | 2019-12-20 | 2020-04-21 | 北京看路科技有限公司 | System and method for rapidly reporting traffic violation behaviors during driving |
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Application publication date: 20120704 |