CN102387347A - Video storing and instant replay system based on IP (identification of position)-SAN (storage area networking) direct storage technology - Google Patents
Video storing and instant replay system based on IP (identification of position)-SAN (storage area networking) direct storage technology Download PDFInfo
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- CN102387347A CN102387347A CN2011103178553A CN201110317855A CN102387347A CN 102387347 A CN102387347 A CN 102387347A CN 2011103178553 A CN2011103178553 A CN 2011103178553A CN 201110317855 A CN201110317855 A CN 201110317855A CN 102387347 A CN102387347 A CN 102387347A
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Abstract
The invention relates to a video storing and instant replay system based on an IP (identification of position)-SAN (storage area networking) direct storage technology. Video data required to be stored adopts a sequence block storage preferential strategy to be stored into an IP-SAN storage system. When a video is replayed, the video data in the IP-SAN storage system is read by iSCSI (internet Small Computer System Interface) protocol commands so as to carry out replaying after initial addresses of video data blocks in an IP-SAN are obtained. The system can realize automatic retrieval and intelligent identification of specific pictures, is huge in synchronous data processing quantity, approximately realizes a real-time network monitoring function in a way that a non-real-time video is replayed by delaying within one second, eliminates a streaming media server, simplifies a system structure and reduces the management cost of the system.
Description
Affiliated technical field
The present invention relates to a kind of video system, especially a kind of video storage and instant playback system.
Background technology
Monitoring video divides the time period to be packaged into video documents in the safety defense monitoring system, and the video clip duration that each video documents comprised is approximately 2 minutes and did not wait to 30 minutes, even can be longer.
The hawkeye system is at cricket, and a cover computer system of using in tennis and other motions with the graph image of the Actual path of the path of tracing record ball and displayed record, also can be predicted the path that ball is following.This system is made up of 8 or 10 high-speed camera heads, four computers and large-screen.At first, the calculating by computer is separated into the solid space in the competition area measurement unit of calculating with millimeter; Then, utilize the high-speed camera head to catch the master data of tennis flight path from different perspectives simultaneously; Calculate through computer again, these data are generated 3-D view; Utilize instant imaging technique at last, clearly demonstrate the moving line and the drop point of tennis by large-screen.From the data acquisition to result, demonstrate, the time that this process consumed, be no more than for 10 seconds.Be generally used for television relay.
There is following technical problem in existing safety defense monitoring system: owing to can't the duration of each video documents be foreshortened to a second level, when running into the important case generation, prior art playback immediately event before in several seconds video recording; Existing supervisory video recording system is when playback video is recorded a video; Only can rely on human eye that picture is retrieved and discerned; When needs are recorded a video at multi-channel video, when carrying out the particular event retrieval in the long-time segment limit, this manual retrieval's mode inefficiency, and very short when the time that particular event takes place; Even when having only a few second, in manual retrieval's process, omit easily; " playback system immediately " in existing " hawkeye system " or the live game coverage process all is based on the television relay application; Its main purpose is to realize 3-D view, the playback at a slow speed of action segment; And in these systems employed hardware device prices are rather stiff; Be tens times even hundred times of video camera price in the common safety defense monitoring system, and such system is only applicable in the less applied environment of number of videos.
Summary of the invention
The object of the present invention is to provide a kind of video storage and instant playback system to solve the problems of the technologies described above.
Technical scheme of the present invention is under the prerequisite of utilizing existing rig camera; Carry out the digital storage of image with the data flow mode; Broken the mode of present safety-protection system file formula storage Video Document; The duration of video segment is shortened to a second level, thus can the monitoring video of instant playback within 1 second in the past.
The present invention is a kind of video storage and playback system, comprising: storage control unit, information management unit, video playback unit; Storage control unit is used for store video video recording data; Information management unit is used to store setup parameter and the video information sign of user to the video recording scheme; The video playback unit is used to resolve the video playback task that the user submits to, obtains the video data address that information management server returns, the video data in the playback storage control unit appropriate address.
Video storage of the present invention and playback system also comprise: said storage control unit is classified to the type of video record according to the video data that receives; Video record is stored with dissimilar, and be provided with in the database that flag bit deposits said information management unit in.
Video storage of the present invention and playback system also comprise: said storage control unit is with order piece memory priority strategy memory allocated space in IP-SAN; Video data abideed by sending to the IP-SAN storage system after the iSCSI consensus standard is packed, store.
Video storage of the present invention and playback system also comprise: the type of said video record is fault, warning, Artificial Control, mobile detection etc.
Video storage of the present invention and playback system also comprise: according to the requirement of Client-initiated video playback; Said information management unit is located the memory location of corresponding video data block in said IP-SAN, and the original position index value of said block of video data is sent to said video playback unit.
Video storage of the present invention and playback system also comprise: the foundation of said location is setup parameter and the video information sign of the user of said information management unit storage to the video recording scheme.
Video storage of the present invention and playback system also comprise: said video playback unit reads the video data in the IP-SAN storage system through the iSCSI protocol instructions after obtaining the initial address of the block of video data that said information management server returns, and carries out playback.Video storage according to claim 1 and playback system is characterized in that: this system can realize the automatic retrieval and the identification of specific picture.
Video storage of the present invention and playback system also comprise: before playing back videos; The user is the selected target area that needs computer to retrieve automatically and discern on the initial picture of said video playback unit; After the beginning playback; Said video playback unit is according to zone, the sensitivity threshold values set; Pixel by in the identified region of being chosen is compared, when in the pixel of being compared with initial picture on pixel value probability inequality during greater than the sensitivity threshold values, promptly be regarded as producing a recognition result.
Video storage of the present invention and playback system also comprise: increased the compensation deals of brightness, the anti-jitter treatment technology of noise, to reduce to retrieve error.
Rely on this technology, the present invention can make a supervisory control system that reaches hundreds of roads even thousands of roads video realize monitoring remote video, under the situation of delaying in ignoring Network Transmission, can reach the effect of near real time monitoring.In addition; When the monitoring video playback, support automatic search function, time range in the wider time period to particular event or scene; When needing the specific scene picture of one of search; Can on many clients, configure picture and the time range that to search for through network, adopt the mechanism of many collaborative computer search, the recall precision that significantly improves video recording.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Accompanying drawing 1 is that a structure of video storage of the present invention and instant playback system is formed example.
Embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.Need to prove before this; Employed term or word can not limited interpretation be common implication or the implication in the dictionary in this specification and claims, and should be based on being interpreted as implication and the notion that meets technological thought of the present invention for the principle that can suitably define the notion of term with its inventor of best mode explanation.Thereupon; The structure of representing in embodiment that this specification is put down in writing and the accompanying drawing is one of most preferred embodiment of the present invention; Can not represent technological thought of the present invention fully, therefore should be understood that to have various equivalents and the variation that to replace for the present invention.
In Fig. 1, whole management strategies, algorithm and software are realized all being deployed on three station servers, i.e. storage control server, information management server, video playback server.When the quantity of video camera is big especially, when surpassing 400 the tunnel, can increase the quantity of storage control server and video playback server, adopt trunking mode service to be provided for the user, the service performance total with the assurance system do not reduce.
Storage control server:
According to the video data that receives the type of video record is classified; Can video record be divided into dissimilar storages such as fault, warning, Artificial Control, mobile detection; And flag bit is set deposits in the information management server database; With order piece memory priority strategy memory allocated space in IP-SAN, video data abideed by sending to the IP-SAN storage system after the iSCSI consensus standard is packed, store.
Information management server:
Be used to store the user to the setup parameter of video recording scheme and video information sign etc.; Retrieval foundation when the playback video recording being provided for the video playback server; According to the Client-initiated replay request; The quick memory location of corresponding video data block in IP-SAN, location sends to the video playback server with the original position index value of block of video data.
The video playback server:
The video playback task that the user submits to is resolved, obtain the initial address of block of video data in IP-SAN that information management server returns after, read the video data in the IP-SAN storage system through the iSCSI protocol instructions, carry out playback.Replayed section can be to have normal playback, playback fast, the playback at a slow speed that picture shows, also can be not have the automatic retrieval type playback that picture shows.Before playing back videos; The user is the selected target area that needs computer to retrieve automatically and discern on the initial picture of video playback server; This zone can be a rectangular area, also can be self-defining irregular closed area, also can be the whole video picture; After the beginning playback, computer is according to zone, the sensitivity threshold values set, compares by the pixel in the identified region of institute in far; When in the pixel of being compared with initial picture on pixel value probability inequality during greater than the sensitivity threshold values, promptly be regarded as producing a recognition result.Wherein, the compensation deals of brightness, the anti-jitter treatment technology of noise have been increased in this algorithm, to reduce to retrieve error.
The embodiment of the invention has following advantage:
The data volume of Synchronous Processing is huge;
In the playing back videos process, realize automatiom information retrieval and Intelligent Recognition function;
To delay realizing the real-time network monitoring function approx with interior non real-time video playback mode at 1 second, cancelled streaming media server, simplified system configuration, reduced the management cost of system;
When system is moved the center of gravity of load look closely in the past frequently gather and digitizer move on in the middle of and the control and the storage area of rear end; Because headend equipment is not have backup; And the equipment of middle and rear end is based on cluster or the work of Hot Spare mode, has also significantly improved the stability of system.
It should be noted that; Although the present invention describes and illustrates with reference to embodiment; But and do not mean that the present invention is limited to the execution mode of these descriptions; Those skilled in the art can therefrom derive many different variants, and they all will be covered in the true spirit and scope of claim of the present invention.
Embodiments of the invention have preferable implementation; And be not that the present invention is done any type of restriction; Any technical staff who is familiar with this field possibly utilize the technology contents change of above-mentioned announcement or be modified to the effective embodiment that is equal to; In every case do not break away from the content of technical scheme of the present invention, to any modification or equivalent variations and modification that above embodiment did, all still belong in the scope of technical scheme of the present invention according to technical spirit of the present invention.
Claims (11)
1. video storage and playback system comprise:
Storage control unit, information management unit, video playback unit;
Storage control unit is used for store video video recording data;
Information management unit is used to store setup parameter and the video information sign of user to the video recording scheme;
The video playback unit is used to resolve the video playback task that the user submits to, obtains the video data address that information management server returns, the video data in the playback storage control unit appropriate address.
2. video storage according to claim 1 and playback system is characterized in that:
Said storage control unit is classified to the type of video record according to the video data that receives, and video record is stored with dissimilar, and be provided with in the database that flag bit deposits said information management unit in.
3. video storage according to claim 2 and playback system is characterized in that:
Said storage control unit is with order piece memory priority strategy memory allocated space in IP-SAN, video data abideed by sending to the IP-SAN storage system after the iSCSI consensus standard is packed and store.
4. video storage according to claim 3 and playback system is characterized in that:
The type of said video record is fault, warning, Artificial Control, mobile detection etc.
5. video storage according to claim 3 and playback system is characterized in that:
According to the requirement of Client-initiated video playback, said information management unit is located the memory location of corresponding video data block in said IP-SAN, and the original position index value of said block of video data is sent to said video playback unit.
6. video storage according to claim 5 and playback system is characterized in that:
The foundation of said location is setup parameter and the video information sign of the user of said information management unit storage to the video recording scheme.
7. video storage according to claim 5 and playback system is characterized in that:
After said video playback unit obtained the initial address of the block of video data that said information management server returns, the video data that reads in the IP-SAN storage system through the iSCSI protocol instructions carried out playback.
8. video storage according to claim 1 and playback system is characterized in that:
Said playback can be to have normal playback, playback fast, the playback at a slow speed that picture shows, also can be not have the automatic retrieval type playback that picture shows.
9. video storage according to claim 1 and playback system is characterized in that:
This system can realize the automatic retrieval and the identification of specific picture.
10. video storage according to claim 9 and playback system is characterized in that:
Before playing back videos; The user is the selected target area that needs computer to retrieve automatically and discern on the initial picture of said video playback unit; After the beginning playback, compare by the pixel in the identified region of being chosen according to zone, the sensitivity threshold values set in said video playback unit; When in the pixel of being compared with initial picture on pixel value probability inequality during greater than the sensitivity threshold values, promptly be regarded as producing a recognition result.
11. video storage according to claim 10 and playback system is characterized in that:
The compensation deals of brightness, the anti-jitter treatment technology of noise have been increased, to reduce to retrieve error.
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| CN103607551A (en) * | 2013-11-12 | 2014-02-26 | 江苏万联新兆信息科技有限公司（外商合资） | Video and network remote playback method based on short time slicing |
| CN103986757A (en) * | 2014-05-09 | 2014-08-13 | 浙江宇视科技有限公司 | Distributed backup method and system of block storage videos |
| WO2015043328A1 (en) * | 2013-09-27 | 2015-04-02 | 杭州海康威视数字技术股份有限公司 | Intelligent video record playback method based on mobile information, and apparatus thereof |
| CN105262971A (en) * | 2015-11-30 | 2016-01-20 | 浙江宇视科技有限公司 | Replay method and device of video of fisheye camera |
| CN105659224A (en) * | 2013-10-17 | 2016-06-08 | 慧与发展有限责任合伙企业 | Storing data at a remote location based on predetermined criteria |
| CN108174132A (en) * | 2016-12-07 | 2018-06-15 | 杭州海康威视数字技术股份有限公司 | The back method and device of video file |
| CN108289194A (en) * | 2017-12-28 | 2018-07-17 | 天津天地伟业信息系统集成有限公司 | Video recording quick playback method and apparatus |
| CN111091851A (en) * | 2019-12-10 | 2020-05-01 | 四川湖山电器股份有限公司 | IPSAN disk management method of recording and broadcasting system |
| CN113031574A (en) * | 2021-05-27 | 2021-06-25 | 北京全路通信信号研究设计院集团有限公司 | Equipment operation process reproduction method and system |
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| CN108174132A (en) * | 2016-12-07 | 2018-06-15 | 杭州海康威视数字技术股份有限公司 | The back method and device of video file |
| CN108289194A (en) * | 2017-12-28 | 2018-07-17 | 天津天地伟业信息系统集成有限公司 | Video recording quick playback method and apparatus |
| CN111091851A (en) * | 2019-12-10 | 2020-05-01 | 四川湖山电器股份有限公司 | IPSAN disk management method of recording and broadcasting system |
| CN111091851B (en) * | 2019-12-10 | 2021-03-02 | 四川湖山电器股份有限公司 | IPSAN disk management method of recording and broadcasting system |
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Application publication date: 20120321 |