CN101266711A - A video monitoring system and alarm recording network storage method - Google Patents
A video monitoring system and alarm recording network storage method Download PDFInfo
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- CN101266711A CN101266711A CNA2007100867702A CN200710086770A CN101266711A CN 101266711 A CN101266711 A CN 101266711A CN A2007100867702 A CNA2007100867702 A CN A2007100867702A CN 200710086770 A CN200710086770 A CN 200710086770A CN 101266711 A CN101266711 A CN 101266711A
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Abstract
The invention discloses a warning video network storage method for a video monitoring system, which includes the following steps that: users configure warning video parameters on a configuration manager; a monitoring front-end reports a warning incident to the configuration manager when the warning incident is detected, the configuration manager sends a warning video command to a media server, the media server receives monitoring data from a monitoring front-end and writes it into a storage device, when the configuration manager sends a stop-videoing command, the media server stops receiving monitoring data and writing it into the storage device, and a warning video is generated. The invention also discloses a video monitoring system. The invention realizes the network storage for the front-end warning video of a carrier-class monitoring system on the media server, which effectively enhances the reliability and usability of monitoring video, provides a strong basis for alarm retrospective analysis, and obviously reduces the pre-investment of operators and the maintenance cost of system.
Description
Technical field
The present invention relates to field of video monitoring, relate in particular to a kind of video monitoring system and alarm recording network storage means.
Background technology
Video monitoring system is the ingredient of security system, and it is a kind of powerful general defensive character in all files.Video monitoring is widely used in many occasions so that it is directly perceived, convenient, the information content is abundant.
Traditional video monitoring system generally all is a dedicated system self-built by the user, that safeguard certainly mainly towards large-scale industry users such as public security, army, People's Armed Police, customs, electric power, transportation, coals.The tree-shaped networking structure of the general employing of industry solution, a complete supervisory system mainly comprises Surveillance center, transmission network and front monitoring front-end control point just.Front monitoring front-end mainly comprises video camera, The Cloud Terrace, demoder, video server, alarm probe and various data acquisition equipment, wherein video server is mainly finished the coding and the functions such as distribution, audio frequency intercommunication, the processing of reporting to the police, video camera control and local storage of medium, is the nucleus equipment of front monitoring front-end.The demand of while along with the raising family monitoring of living standards of the people also begins to occur.Family's monitoring generally all adopts web camera as front monitoring front-end, uses a computer as monitor client, uses the built-in WEB service of special-purpose client software or video camera to finish monitoring function, and system is exactly a point-to-point solution substantially.
The alarm live video is a critical function of supervisory system, and according to the solution of traditional digitized video monitoring, the video data that collects after the alarm detector action directly leaves monitoring frontend this locality in through overcompression.Like this, alarm video recording is subjected to the restriction of unit hard disk size, in addition because the control point disperses to deposit searching and visiting and all bring some problems for centralization.
Along with the social public security problem become increasingly conspicuous and the public monitor growth of requirement, development of internet technology, and the specialized requirement of system's operation, maintenance, safeguard by operator's construction, can satisfy the development trend that operation level supervisory system that industry and the public monitor needs becomes supervisory system simultaneously.
In the traditional video surveillance system, when accident takes place, front monitoring front-end directly will be alarmed video recording and be stored in local disk, manually obtain Video Document or timing automatic then and pass the monitor data center back.This mode need be at the built-in enough disks of front monitoring front-end, and the disk corrupted can cause losing of monitor data on the one hand, and this is unacceptable in supervisory system; The early investment and the system maintenance cost of operator have also been increased on the other hand, particularly large-scale monitoring to there being thousands of front monitoring front-ends to scatter.Therefore tradition alarm video recording mode can't adaptive video monitoring operation level development trend.
Summary of the invention
The technical problem to be solved in the present invention just provides a kind of video monitoring system and alarm recording network storage means, realizes the network alarm video recording to accident, reduces the deployment and the maintenance cost of front monitoring front-end.
In order to solve the problems of the technologies described above, the invention provides a kind of video monitoring system alarm recording network storage means, comprise the steps:
(1) user disposes alarm video recording parameter on configuration manager;
(2) take place when front monitoring front-end detects alarm event, report to configuration manager, configuration manager sends alarm video recording order to media server, and media server receives the monitor data that transmits from front monitoring front-end, write storage device;
(3) stop the video recording order when configuration manager sends to media server, media server stops to receive monitor data and write storage device, generates the alarm video recording.
Further, before described step (1) was carried out, front monitoring front-end powered on, and the access carrier network is given configuration manager with state information report.
Further, in the described step (1), the user also specifies the front monitoring front-end that will carry out the network alarm video recording by configuration manager.
Further, described alarm video recording parameter comprises alarm back video recording duration.
Further, described alert video recording parameter also comprises early warning video recording duration.
Further, described alarm video recording parameter comprises early warning video recording parameter, then after step (1) is carried out, carries out following steps:
(a) configuration manager sends to media server with early warning video recording order;
(b) media server receives the monitor data that transmits from front monitoring front-end, according to the pre-record strategy and the parameter of early warning video recording order appointment, with the monitor data write storage device.
Further, after described step (a) was carried out, media server judged whether that setting up medium with the front monitoring front-end of order appointment is connected, and just utilizes original connection if set up the medium connection, otherwise newly-built medium connect, and monitor data is constantly mail to media server from front monitoring front-end.
Further, described early warning is recorded a video to order and is comprised the front monitoring front-end address information, alarm record task sign, and the alarm video recording title of generation is alarmed the duration of pre-recording, space limit information.
Further, in the described step (3), if configuration manager is received front monitoring front-end all clear notice, perhaps the alarm of alarm configuration video recording is timed to, and configuration manager sends to media server and stops the video recording order.
Further, after described step (3) is carried out,, then stop being connected with the medium of front monitoring front-end if media server does not receive that also configuration manager sends order after waiting for a period of time.
In order to solve the problems of the technologies described above, the present invention also provides a kind of video monitoring system, comprises at least one front monitoring front-end, it is characterized in that, also comprises at least one network node, and network node comprises:
Configuration manager, being used to be responsible for safeguarding the state of monitoring frontend provides the user to alarm the video recording parameter configuration interface, and the notice media server is alarmed video recording;
Media server is used to receive the configuration manager order, consults to set up medium with front monitoring front-end and is connected, and receives the media data that front monitoring front-end transmits, and sends to memory device, generates the alarm video recording;
Memory device is used to store monitor data.
Further, described alarm video recording parameter comprises early warning video recording parameter;
Described configuration manager also is used for early warning video recording order is sent to media server;
Media server also is used to receive the monitor data that transmits from front monitoring front-end, according to the pre-record strategy and the parameter of early warning video recording order appointment, with the monitor data write storage device.
Further, media server is used to also judge whether that setting up medium with the front monitoring front-end of order appointment is connected, just utilize original connection if set up the medium connection, otherwise the connection of newly-built medium is constantly mail to media server with monitor data from front monitoring front-end.
Further, after described media server also is used for generating the alarm video recording,, then stop being connected with the medium of front monitoring front-end if do not receive also after waiting for a period of time that configuration manager sends order.
The present invention realizes the network storage of operation level supervisory system front end alarm video recording on media server, effectively raise the reliabilty and availability of monitoring video, for the alarm retrospective analysis provides strong foundation, and can obviously reduce operator's early investment and system maintenance cost.
Description of drawings
Fig. 1 is the application scenarios synoptic diagram of the embodiment of the invention;
Fig. 2 is an application example process flow diagram of the present invention;
Embodiment
The present invention is described in detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 1, video monitoring system comprises one or more network nodes and the one or more front monitoring front-ends that link to each other with network node by network.Network node and front monitoring front-end generally are man-to-man relations.
Front monitoring front-end the has been integrated equipment of functions such as camera, microphone, alarm detection, scrambler, network interface card has to the configuration manager of network node and reports state and accept the abilities such as media server medium request of network node.Front monitoring front-end is distributed widely in public situation or industry inside fixing and that move, final access carrier network.
The monitoring of carrier network node deployment configuration manager, media server and memory device.Configuration manager is responsible for safeguarding the state of monitoring frontend, and user's alarm parameter configuration interface is provided, and what the notice media server was alarmed pre-recording and recording a video.Media server is responsible for receiving the configuration manager order, initiatively consulting to set up medium with front monitoring front-end is connected, consult to adopt standard media control protocol such as RTSP (Real-Time Streaming Protocol, real-time streaming protocol) etc. do not limit, receive the media data that front monitoring front-end transmits, with the memory device of document form real-time storage in network node.Configuration manager and media server can be disposed and can be positioned at same physical device and also can separate and dispose.Memory device is meant as reliable memory equipment such as disk arrays.
When front monitoring front-end power on enter monitor state after, configuration manager assigns user's alarm video recording parameter to media server.Media server is set up and is connected with the medium of front monitoring front-end, what begin to alarm pre-records, pre-record according to the image before certain policy store alarm trigger, specific strategy can not limit based on time, space or other considerations, reaches the effect of not only being convenient to put to the proof but also save disk space.
If front monitoring front-end detects alarm event sometime, to configuration manager report warning information, configuration manager will be notified media server, media server will be jumped out aforementioned pattern and the continuation alarm video recording on the basis of pre-recording of pre-recording, remove until alarm, the cause and effect of this alarm event will be stored in the form of the complete video recording of a paragraph in the network storage equipment in order to watching.Then, configuration manager is assigned user's alarm video recording parameter to media server once more, thereby said process is realized the video recording to follow-up alarm so repeatedly, otherwise media server will initiatively be removed the medium connection after will waiting for certain hour.
The concrete job step of present embodiment is:
Step 1, front monitoring front-end powers on, and the access carrier network is given configuration manager with state information report;
Step 2, the user specifies front monitoring front-end and the alarm video recording parameter that will carry out the network alarm video recording by configuration manager;
Alarm video recording parameter is relevant with the concrete strategy of pre-recording, and the strategy of pre-recording can not limit based on time, space or other factors.
A kind of time-based strategy is by early warning video recording duration Ipre before alarming and alarm back video recording duration Ipost definition alarm video recording.Suppose that media server begins execution in step five constantly from TpreRecord, and alarm event occurs in Talarm constantly, the final media file period that produces of then whole alarm video process is [Tstart, Tend].Wherein, Tstart=(Talarm-Ipre) when Talarm＞(TpreRecord+Ipre), otherwise Tstart=TpreRecord; Tend=(Talarm+Ipost).This time-based strategy is satisfying the waste of having avoided storage space when the monitoring alarm video recording requires.
The situation that a kind of simplification also can be arranged is provided with exactly and does not pre-record, and alarm is just recorded a video after taking place, promptly after the execution in step two, and direct execution in step six.
Step 3, configuration manager are provided with user's alarm video recording and are converted into early warning video recording order and send to media server;
Step 4, after media server is received the early warning video recording order of configuration manager, judge whether that setting up medium with the front monitoring front-end of order appointment is connected, just utilize original connection if set up the medium connection, otherwise newly-built medium connect, and media data will constantly mail to media server from front monitoring front-end;
Step 5, media server receive and the buffer memory monitor data, according to the pre-record strategy and the parameter of early warning video recording order appointment, with document form with the monitor data write storage device; Allow step 2-step 5 repeatedly to carry out;
Step 6, front monitoring front-end detect alarm event and take place, and report to configuration manager;
Step 7, configuration manager sends alarm video recording order to media server, and media server continues video recording on the basis of pre-recording; According to alarm video recording strategy, video recording executive mode concrete in step 5 and the step 7 can be inequality, but operated to as if identical, i.e. early warning video recording is stored in the identical media file with the alarm video recording;
Step 8, configuration manager are received front monitoring front-end all clear notice, and perhaps the alarm of alarm configuration video recording is timed to, and configuration manager sends to media server and stops the video recording order;
Step 9, media server stop to receive code stream and operating writing-file, generate complete alarm video recording, return alarm video recording object information to configuration manager;
Step 10 if media server is received the early warning video recording order that configuration manager sends, is then returned execution in step four; If also do not receive the early warning video recording order that configuration manager sends after media server waits for a period of time, then stop being connected with the medium of front monitoring front-end.
As shown in Figure 2, be an application example of present embodiment:
Step 1, when monitoring frontend powered on, the access carrier network was to configuration manager report oneself state;
Step 2, the user alarms the video recording parameter by the configuration manager layout setting, and sends to the front monitoring front-end that needs the execution alarm to record a video;
Step 3, configuration manager sends early warning video recording order StartAlarmRecord to media server.Herein, pre-record and adopt time-based strategy, the StartAlarmRecord command parameter comprises URL front monitoring front-end address information, TaskID alarm record task sign, the alarm video recording title that FileName generates, alarm before the PreRecordTime alarm event takes place the constantly so far constantly duration (for example 5 minutes) of pre-recording, information such as Space space limit;
After step 4, media server are received the StartAlarmRecord order, connect as yet foundation, then set up medium and be connected by RTSP agreement and front monitoring front-end as if the medium that inquire front monitoring front-end according to URL;
Step 5, front monitoring front-end begin to send monitor data to media server, and the code stream that the media server buffer memory receives is stored in disk array with FileName.File storage realizes time-based control strategy, and the mode that covers with rollback writes the data of pre-recording, and only keeps the video recording data of current time PreRecordTime to the current time all the time;
Step 6, front monitoring front-end triggers alarm, send switch fault report AlarmReport order to configuration manager, configuration manager learns that alarm takes place, once more to media server send with step 3 in the StartAlarmRecord that sends have the StartAlarmRecord order of identical TaskID, different with step 3 is herein StartAlarmRecord to order the PreRecordTime parameter value that carries be 0;
Step 7, media server is received StartAlarmRecord, finds the task of pre-recording according to TaskID, is that 0 judgement is alarmed from the PreRecordTime parameter value, withdraw from rollback and cover storage mode, on original pre-recording (for example 5 minutes) basis, carry out follow-up video recording;
Step 8, the alarm of disposing on configuration manager video recording duration is RecordTime (for example 15 minutes), and RecordTime is overtime to be arrived, and configuration manager sends StopAlarmRecord to media server and notifies it to stop video recording; Perhaps, configuration manager is received front monitoring front-end all clear notice, and configuration manager also can send StopAlarmRecord to media server and notify it to stop video recording;
Step 9, media server stops to receive code stream and video recording after receiving StopAlarmRecord, the alarm video file that produces will be to be carved into alarm event during PreRecordTime RecordTime one section complete medium constantly in back take place before alarm event takes place, and media server returns information such as start time, concluding time of this alarm video recording in giving the response message of configuration manager.
Step 10, media server keeps being connected with the RTSP of front monitoring front-end, prepares the request of pre-recording of alarm next time of processing configuration manager, if wait timeout (for example 2 minutes), media server sends dismounting Teardown order to front monitoring front-end, disconnects RTSP and connects.
The present invention makes full use of the advantage aspect capacity and reliability of network centralized stores, the network of realizing visual alarm video recording data by media server obtains and real-time storage, reduce supervisory system construction and lower deployment cost, improve the reliability of supervisory system, be applicable to the supervisory system of operation level.
Here it is pointed out that the specific embodiment among the present invention just enumerated indivedual example of the present invention, the monitoring alarm video recording that uses design philosophy of the present invention and any equivalent transformation thereof to realize all should belong to protection scope of the present invention.
Claims (14)
1. a video monitoring system alarm recording network storage means comprises the steps:
(1) user disposes alarm video recording parameter on configuration manager;
(2) take place when front monitoring front-end detects alarm event, report to configuration manager, configuration manager sends alarm video recording order to media server, and media server receives the monitor data that transmits from front monitoring front-end, write storage device;
(3) stop the video recording order when configuration manager sends to media server, media server stops to receive monitor data and write storage device, generates the alarm video recording.
2. method according to claim 1 is characterized in that, before described step (1) was carried out, front monitoring front-end powered on, and the access carrier network is given configuration manager with state information report.
3. method according to claim 1 is characterized in that, in the described step (1), the user also specifies the front monitoring front-end that will carry out the network alarm video recording by configuration manager.
4. method according to claim 1 is characterized in that, described alarm video recording parameter comprises alarm back video recording duration.
5. method according to claim 4 is characterized in that, described alert video recording parameter also comprises early warning video recording duration.
6. method according to claim 1 is characterized in that, described alarm video recording parameter comprises early warning video recording parameter, then after step (1) is carried out, carries out following steps:
(a) configuration manager sends to media server with early warning video recording order;
(b) media server receives the monitor data that transmits from front monitoring front-end, according to the pre-record strategy and the parameter of early warning video recording order appointment, with the monitor data write storage device.
7. method according to claim 6, it is characterized in that, after described step (a) is carried out, media server judges whether that setting up medium with the front monitoring front-end of order appointment is connected, just utilize original connection if set up the medium connection, otherwise newly-built medium connect, and monitor data is constantly mail to media server from front monitoring front-end.
8. method according to claim 6 is characterized in that, described early warning is recorded a video to order and comprised the front monitoring front-end address information, alarm record task sign, and the alarm video recording title of generation is alarmed the duration of pre-recording, space limit information.
9. method according to claim 1 is characterized in that, in the described step (3), if configuration manager is received front monitoring front-end all clear notice, perhaps the alarm of alarm configuration video recording is timed to, and configuration manager sends to media server and stops the video recording order.
10. method according to claim 1 is characterized in that, after described step (3) is carried out, if media server does not receive that also configuration manager sends order after waiting for a period of time, then stops being connected with the medium of front monitoring front-end.
11. a video monitoring system comprises at least one front monitoring front-end, it is characterized in that, also comprises at least one network node, network node comprises:
Configuration manager, being used to be responsible for safeguarding the state of monitoring frontend provides the user to alarm the video recording parameter configuration interface, and the notice media server is alarmed video recording;
Media server is used to receive the configuration manager order, consults to set up medium with front monitoring front-end and is connected, and receives the media data that front monitoring front-end transmits, and sends to memory device, generates the alarm video recording;
Memory device is used to store monitor data.
12., it is characterized in that described alarm video recording parameter comprises early warning video recording parameter according to the described system of claim 11;
Described configuration manager also is used for early warning video recording order is sent to media server;
Media server also is used to receive the monitor data that transmits from front monitoring front-end, according to the pre-record strategy and the parameter of early warning video recording order appointment, with the monitor data write storage device.
13. according to the described system of claim 11, it is characterized in that, media server is used to also judge whether that setting up medium with the front monitoring front-end of order appointment is connected, just utilize original connection if set up the medium connection, otherwise newly-built medium connect, and monitor data is constantly mail to media server from front monitoring front-end.
14. according to the described system of claim 11, it is characterized in that, after described media server also is used for generating the alarm video recording,, then stop being connected with the medium of front monitoring front-end if do not receive also after waiting for a period of time that configuration manager sends order.
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