CN101600096B - Cross-domain on-demand method in video monitoring system and video management server - Google Patents
Cross-domain on-demand method in video monitoring system and video management server Download PDFInfo
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- CN101600096B CN101600096B CN2009100875178A CN200910087517A CN101600096B CN 101600096 B CN101600096 B CN 101600096B CN 2009100875178 A CN2009100875178 A CN 2009100875178A CN 200910087517 A CN200910087517 A CN 200910087517A CN 101600096 B CN101600096 B CN 101600096B
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Abstract
The invention discloses a cross-domain on-demand method in a video monitoring system, comprising the following steps: a VM server in any domain of the video monitoring system periodically requires video data when a remote domain gives an alarm, and/or requires the video data of the remote domain under the trigger of user on-demand events; the video data conforming to requirements in the remote domain are copied to a storage resource in the domain. The invention further discloses the VM server. By using the invention, cross-domain on-demand can be realized with the minimum network resource consumption.
Description
Technical field
The present invention relates to the video monitoring technology, be specifically related to the method and the video management server of cross-domain on-demand in the supervisory control system.
Background technology
The video monitoring technology has advantages such as authenticity, reliability, popularity, has therefore all obtained using widely in all trades and professions such as security protection, traffic, finance, education.The purpose of disposing supervisory control system is real-time monitoring, storage video recording data, and the video recording data when taking place by the alarm of videoconference client (VC client) on-demand playback, thereby provides strong evidence for cracking of case.
Large-scale video monitoring system has appearred at present.Large-scale video monitoring system has a plurality of guarded regions, and each guarded region links to each other by middle bearer network, and middle bearer network can be Local Area Network or wide area network (WAN); Each guarded region is disposed a cover supervisory control system, is called the area monitoring system.Fig. 1 has trizonal big well-behaved video monitoring system schematic diagram in the prior art.As shown in Figure 1, each area monitoring system comprises headend equipment such as camera, intercom, encoder, decoder, VC client, video wall, video management server (VM server) and as the area stores network (IP SAN) of the internet protocol-based of storage resources.
Headend equipment is gathered various forms of monitor datas such as video, audio frequency, stores among the IP SAN behind the encoded device coding of these monitor datas, is presented at VC client or video wall etc. in real time by decoder simultaneously and starts the terminal of monitoring in real time.The monitor data that shows is called real time data in real time, stores among the IPSAN, supplies the monitor data of on-demand playback to be called the video recording data.
When the user needs the video recording data of program request one's respective area, the user can use the VC client to send order request to the VM server, the VC client is obtained by the memory address of program request video recording data in the IP of one's respective area SAN, notify the VC client to read the video recording data then, thereby finish recording order from the SAN of the IP of one's respective area.Easy in order to describe, below the operation of user by the VC client executing all is considered as the operation that the user carries out.
When the user needed the video recording data of program request remote zone promptly to carry out cross-domain on-demand, the video recording data of user's requesting area A of area B for example then needed just can finish through 7 steps the on-demand process of video recording.Fig. 2 shows the on-demand process of video recording data of user's requesting area A of area B in the system shown in Figure 1.In order to clearly illustrate information flow-rate in the on-demand process, encoder, decoder, headend equipment etc. and the irrelevant network composition of program request have been omitted among Fig. 2.As shown in Figure 2, on-demand process comprises following process: 1. the user sends order request by client VC-B to the VM of area B server, the video recording data among the request program request remote zone one regional A; 2. the VM server of area B sends to order request the VM server of regional A; 3. the VM server of regional A is to the IP of regional A SAN application resource; 4. the IP SAN of regional A returns response to the VM of regional A server, to inform by the memory address of program request video recording data; 5. the VM server of regional A will be fed back to the VM server of area B by the record a video memory address of data of program request; 6. the VM server of area B will be fed back to client VC-B by the record a video memory address of data of program request; 7. client VC-B obtains the video recording data according to the memory address of video recording data from the IP SAN of regional A, thereby finishes cross-domain on-demand.
As shown in Figure 2, when carrying out cross-domain on-demand, need could be arrived the user who proposes order request through middle bearer network, take the valuable bandwidth resource of middle bearer network by program request video recording data.If the user is the same video recording data of cross-domain on-demand repeatedly, then each cross-domain on-demand all needs to read by order program data from remote area by middle bearer network, bring than the macroreticular resource consumption for middle bearer network, the transmission of the data that may cause recording a video is lost, and causes the decline of program request quality.
Summary of the invention
In view of this, the invention provides the cross-domain on-demand method in a kind of video monitoring system, can realize cross-domain on-demand with the network resource consumption of minimum.
Described video monitoring system comprises a plurality of zones that link to each other by middle bearer network, and wherein, the user region is the one's respective area, and other zone is a remote area in described a plurality of zones, and a cover area monitoring system is disposed in each zone; This method comprises:
The video management VM server in the arbitrary zone video recording data in active request remote area when alarm periodically in the described video monitoring system, or under the triggering of user's program request incident the video recording data of request remote area, the video recording data that meet request condition in the remote area are copied to the storage resources of one's respective area;
When described VM server is asked the video recording data of program request remote area the one's respective area user, judge whether have in the storage resources of one's respective area complete by program request video recording data, if have, then notify described user to read by program request video recording data from the storage resources of one's respective area; Otherwise if there is part the one's respective area by the video recording data of program request, the video management server of remote area responds this user's order request, will lack the storage resources that is copied to the one's respective area by program request video recording data of part from remote area; If the one's respective area does not exist by the video recording data of program request, the VM server of remote area responds this user's order request, the complete data of being recorded a video by program request is copied to the storage resources of one's respective area from remote area.
Wherein, the video recording data the during alarm of the periodic active request remote area of VM server, and the video recording data that meet request condition in the remote area are copied to the process of the storage resources of one's respective area, comprising:
The VM server periodically sends the alarm inquiry request to the VM of remote area server, and this alarm inquiry request is used to inquire about the alarm record of remote area; According to the alarm record, the video recording data that produce headend equipment collection when alarming of alarm in the remote area are copied to the storage resources of one's respective area.
Wherein, described alarm record comprises headend equipment information, warning strategies and the alarm moment that produces alarm;
Described according to the alarm record, the video recording data that the headend equipment that produces alarm in the remote area is gathered when the alarm are copied to the storage resources of one's respective area, comprising:
When the video recording strategy that produces the headend equipment of alarm in the remote area is the alarm triggered video recording, the headend equipment that produces alarm is copied to the storage resources of one's respective area in the video recording data of alarm back storage constantly;
When the video recording strategy of the headend equipment that produces alarm in the remote area when recording a video according to plan, the video recording data that will cover one section scheduled duration in the alarm moment are copied to the storage resources of one's respective area.
Preferably, described alarm record further comprises alarm type, and during then from remote area copy video recording data, copy meets the video recording data of setting alarm type.
Wherein, do not have completely during by program request video recording data in the storage resources of one's respective area, the storage resources that the data of being recorded a video by program request that will lack part from remote area copy the one's respective area to comprises:
If part is arranged in the storage resources of one's respective area by the program request data of recording a video, and the disappearance part is in the centre or the rear end of the data of being recorded a video by program request, then VM server notification user reads by the existing part of program request video recording data from the storage resources of one's respective area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request from remote area simultaneously;
If part is arranged in the storage resources of one's respective area by the program request data of recording a video, and the disappearance part is at the front end of the data of being recorded a video by program request, then the VM server is transmitted to remote area with user's order request earlier, respond this user's order request by remote area, from remote area, will partly be copied in the storage resources of one's respective area simultaneously by the record a video disappearance of data of program request; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area;
The VM server of described remote area responds this user's order request, when the one's respective area does not exist by the video recording data of program request, from remote area the complete storage resources that is copied to the one's respective area by program request video recording data is comprised:
If in the storage resources of one's respective area not by program request video recording data, then the VM server is transmitted to remote area with user's order request earlier, respond this user's order request by remote area, from remote area, will be copied in the storage resources of one's respective area simultaneously by the program request data of recording a video; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area.
Preferably, the video recording data of remote area are copied to after the storage resources of one's respective area, this method further comprises:
The VM server generates cross-domain stored information, is used for record copies to the video recording data of the one's respective area memory address in the one's respective area; The VM server that the cross-domain stored information that generates is sent to remote area is registered;
When the storage resources of remote area is not enough to respond simultaneously concurrent a plurality of user's order request, the VM server of this remote area is according to the cross-domain stored information of one's respective area registration, judge the backup that whether has in other zones by program request video recording data, if have, notify the user to have by the region request of program request video recording data by the program request data of recording a video to backup.
Preferably, this method further comprises: the VM server is the video recording data configuration ageing time of each time period of each headend equipment of cross-domain storage, when one section of cross-domain storage video recording data by a sowing time, the ageing time of this section video recording data of resetting is prescribed a time limit when ageing time arrives the ageing time that is provided with, aging these section video recording data, wherein, described aging operation is this section of deletion video recording data, or is that this section video recording data are stamped aging label, and keeps one default period.
The present invention also provides a kind of VM server, can realize cross-domain on-demand with the network resource consumption of minimum.
This VM server comprises transregional copy cell, program request processing unit and cross-domain copy program request response unit;
Described transregional copy cell, video recording data when being used for periodically active request remote area alarm, or under the triggering of user's program request incident the video recording data of request remote area, the video recording data that meet request condition in the remote area are copied to the storage resources of one's respective area;
Described program request processing unit, be used for when the video recording data of one's respective area user's program request remote area, judge whether have completely in the storage resources of one's respective area,, then notify described user to read by program request video recording data from the storage resources of one's respective area if having by program request video recording data; Otherwise if there is part the one's respective area by the video recording data of program request, the video management server of remote area responds this user's order request, will lack being copied in the storage resources of one's respective area by program request video recording data of part from remote area; If the one's respective area does not exist by the video recording data of program request, the VM server of remote area responds this user's order request, the complete data of being recorded a video by program request is copied to the storage resources of one's respective area from remote area;
Cross-domain copy program request response unit is used for returning the relevant information of requested video recording data when the video recording data of remote area request copy one's respective area; When the video recording data of remote area request program request one's respective area, the response order request.
Wherein, described transregional copy cell comprises and initiatively copies module, is used for periodically sending the alarm inquiry request to the VM of remote area server, and this alarm inquiry request is used to inquire about the alarm record of remote area; According to the alarm record that remote area returns, the video recording data that produce headend equipment collection when alarming of alarm in the remote area are copied to the storage resources of one's respective area;
Described cross-domain copy program request response unit returns the alarm record of one's respective area when the alarm inquiry request that receives from remote area; When remote area request copy video recording data, return the storage address information of the video recording data that are copied.
Wherein, described alarm record comprises headend equipment information, warning strategies and the alarm moment that produces alarm;
The described module that initiatively copies is according to alarm record copies video recording data the time, when the video recording strategy that produces the headend equipment of alarm when remote area was the alarm triggered video recording, the headend equipment that will produce alarm was copied to the storage resources of one's respective area in the video recording data of alarm back storage constantly;
The video recording strategy of headend equipment that produces alarm when remote area is when recording a video according to plan, and the video recording data that will cover one section scheduled duration in the alarm moment are copied to the storage resources of one's respective area.
Preferably, described alarm record further comprises alarm type, and is then described when initiatively copy module from remote area copy video recording data, copies to meet the video recording data of setting alarm type.
Wherein, described transregional copy cell comprises program request Event triggered copy module, is used under the control of program request processing unit the video recording data of remote area being copied to the storage resources of one's respective area;
Described program request processing unit comprises program request judge module, first read module, second read module and third reading delivery piece;
Described program request judge module is used for when the video recording data of one's respective area user's program request remote area, judge whether have in the storage resources of one's respective area complete by program request video recording data; If have the complete data of being recorded a video by program request, then notify first read module; If part is arranged by the program request data of recording a video, then notifies second processing module; If, then do not notify the 3rd processing module by program request video recording data;
Described first read module is used for when receiving notice, notifies described user to read by program request video recording data from the storage resources of one's respective area;
Described second read module is used for when receiving notice, judges the position of disappearance part in the data of being recorded a video by program request; If the disappearance part is in the centre or the rear end of the data of being recorded a video by program request, then notify the user to read by the existing part of program request video recording data, control described program request Event triggered copy module simultaneously and from remote area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request from the storage resources of one's respective area; If the disappearance part is at the front end of the data of being recorded a video by program request, then earlier user's order request is transmitted to remote area, respond this user's order request by remote area, control described program request Event triggered copy module simultaneously and from remote area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area;
Described third reading delivery piece, be used for when receiving notice, earlier user's order request is transmitted to remote area, respond this user's order request by remote area, control described program request Event triggered copy module simultaneously and from remote area, will be copied in the storage resources of one's respective area by the program request data of recording a video; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area.
Preferably, described cross-domain copy cell comprises cross-domain stored information logging modle, and the video recording data that are used for remote area are copied to after the storage resources of one's respective area, generate cross-domain stored information,, be used for record copies to the video recording data of one's respective area memory address in the one's respective area; The VM server that the cross-domain stored information that generates is sent to remote area is registered; When the cross-domain stored information that receives from remote area, register in the one's respective area;
Described program request processing unit comprises that concurrent request shares module, when being used for storage resources and being not enough to respond simultaneously concurrent a plurality of user's order request in the one's respective area, cross-domain stored information according to the one's respective area registration, judge the backup that whether has in other zones by program request video recording data, if have, notify the user to have by the region request of program request video recording data by the program request data of recording a video to backup.
Preferably, the video recording data configuration ageing time of each time period of each headend equipment that described cross-domain stored information logging modle further is cross-domain storage, when one section of cross-domain storage video recording data by a sowing time, the ageing time of this section video recording data of resetting is prescribed a time limit when ageing time arrives the ageing time that is provided with, aging these section video recording data, wherein, described aging operation is this section of deletion video recording data, or is that this section video recording data are stamped aging label, and keeps one default period.
By the above as seen, cross-domain on-demand scheme of the present invention copies some probably by the video recording data of the remote zone of repeatedly program request in the one's respective area, make these video recordings of user's program request of one's respective area during data, need not to obtain from remote area by middle bearer network, but can be directly obtain from the IP SAN of one's respective area, thereby avoid each cross-domain on-demand all to need to obtain by the process of order program data from remote area by middle bearer network, a copy function both can provide repeatedly order program service, thereby had significantly reduced the resource consumption to middle bearer network.
Description of drawings
Fig. 1 has trizonal big well-behaved video monitoring system structural representation in the prior art.
Fig. 2 is the on-demand process of user's requesting area A video recording data of area B in the system shown in Figure 1.
The flow chart of the video recording data when Fig. 3 periodically initiatively copies the remote area alarm for VM server in the embodiment of the invention.
Fig. 4 asks the process chart of the video recording data of program request remote area the user for VM server in the embodiment of the invention.
Fig. 5 is the structural representation of VM server in the embodiment of the invention.
Embodiment
The invention provides the cross-domain on-demand method in a kind of video monitoring system, described video monitoring system comprises a plurality of zones that link to each other by middle bearer network, and a cover area monitoring system is all disposed in each zone.This method comprises:
Video recording data when the VM server X in arbitrary zone periodicity active request remote area is alarmed in the video monitoring system, and/or under the triggering of user's program request incident the video recording data of request remote area, the video recording data that meet request condition in the remote area are copied to the IP SAN of one's respective area.
When VM server X asks the video recording data of program request remote area the one's respective area user, judge whether have among the IP SAN of one's respective area complete by program request video recording data, if have, then the user of notice proposition order request directly reads by program request video recording data from the IP SAN of one's respective area; Otherwise,, and will be copied to the IP SAN of one's respective area by the complete video recording data of program request with the VM server cooperative response user's of remote area order request.
As seen, cross-domain on-demand scheme of the present invention copies some probably by the video recording data of the remote zone of repeatedly program request in the one's respective area, video recording data when comprising the remote zone alarm and one's respective area user be the video recording data of cross-domain on-demand once, make these video recordings of user's program request of one's respective area during data, need not to obtain from remote area by middle bearer network, but can be directly obtain from the IP SAN of one's respective area, thereby avoid each cross-domain on-demand all to need to obtain by the process of order program data from remote area by middle bearer network, a copy function both can provide repeatedly order program service, thereby had significantly reduced the resource consumption to middle bearer network.
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, describe the present invention.For convenience and easy to understand, below when describing cross-domain on-demand method, alarm video recording data constantly are called alarm video recording data, headend equipment adopts camera, and with the video recording data instance of user's cross-domain on-demand zone A of area B among Fig. 2.
Fig. 3 is the VM server flow chart of the video recording data the during alarm of active request copy remote area periodically in the embodiment of the invention.As shown in Figure 3, this flow process may further comprise the steps:
Step 300: the supervisory control system deployment is finished and is brought into operation.
Step 301: the VM server of area B periodically sends the alarm inquiry request to the VM of regional A server, and this alarm inquiry request is used to inquire about the alarm record of remote area.Polling cycle can be set to for example 30 minutes.
Present embodiment is the alarm video recording data instance with area B active request zone A, area B alarm video recording data in the every other zone of active request periodically in practice, or the alarm video recording data of the default specific region of active request periodically.
The VM server of zone A is when receiving from other regional alarm inquiry requests, the alarm record of inquiry one's respective area, this alarm record specifically comprises camera information, video recording strategy and the alarm moment of having alarmed, can further include alarm type.The alarm record that inquires is returned to the zone that proposes the alarm inquiry request.According to the alarm record that is received from remote area, the video recording data that produce headend equipment collection when alarming of alarm in the remote area are copied to the IP SAN of one's respective area by the VM server in the zone of proposition alarm inquiry request.Following steps 302～306 are the detailed process according to alarm record copies alarm video recording data.
Step 302: the alarm record that the VM server receiving area A of area B returns, judge according to the alarm record whether regional A has camera to produce alarm, if having, then execution in step 303; Otherwise, judge this poll-final, return step 301.
Step 303: according to the definite video recording strategy that produces the camera of alarm of alarm record, if alarm drives, begin when promptly detecting alarm event to record a video, then execution in step 304; If store according to plan, promptly specify the storage plan of a time period, in the time period of appointment, continue video recording, then execution in step 305.
Step 304: the camera of generation alarm in the remote area is being alarmed the IP SAN that the video recording data of storing moment back are copied to the one's respective area, and this flow process finishes.Preferably, this step can also be according to the predefined alarm type of user, and copy meets the video recording data of alarm type, thereby improves the flexibility of copies data, avoids copying the little video recording data of some practical significances.
Step 305: each is covered the IP SAN that the video recording data of alarming one section scheduled duration t constantly are copied to the one's respective area, and this flow process finishes.The start and end time of described one section scheduled duration t can be preestablished by the user, perhaps adopts the time of acquiescence.For example, the video recording data of alarming in back 30 minute this hour were constantly arrived in the copy alarm in preceding 30 minutes constantly.
In the above-mentioned steps 304 and 305, the VM server of area B copies required video recording data from regional A and comprises to the detailed process of B area I P SAN:
1, the VM server of area B is to the VM of regional A server requests video recording data, during request with time period of requested video recording data, gather the VM server of the regional A of camera information notification of these video recording data;
2, the VM server of regional A is requested the memory address of data of recording a video to obtain, and feeds back to the VM server of area B to the IP of regional A SAN application resource;
3, the VM server of area B is visited the IP SAN of remote area and is read the video recording data according to the memory address of returning, with the video recording storage that reads in the IP SAN of area B, simultaneously in area B by the data message of respectively recording a video of record in the resource data store storehouse of VM server maintenance, comprise camera information, storage address information or the like, thereby finished the cross-domain copy of video recording data.
By the flow process shown in the execution graph 3, stored cross-domain alarm video recording data among the IP SAN of area B, when the one's respective area user asks these cross-domain alarms of program request to record a video data, do not need to obtain from remote area, can directly read from the one's respective area.
When the user asks the cross-domain video recording data of program request imperfect, when perhaps not existing, then need the VM server cooperative response user's of the VM server of one's respective area and remote area order request, and will be copied to the IP SAN of one's respective area, use for user's program request next time by the complete video recording data of program request.
Fig. 4 asks the process chart of the video recording data of program request remote area the user for VM server in the embodiment of the invention.This flow process is still asked the video recording data instance of requesting area A with the user of area B among Fig. 2.As shown in Figure 4, this flow process may further comprise the steps:
Step 401: the user of area B sends order request to the VM of one's respective area server, the video recording data of request requesting area A.This order request comprises by the time period of program request and camera information.
Step 402: whether after the VM server of area B is received order request, judging has completely by program request video recording data among the IP SAN of area B, and complete by program request video recording data if the one's respective area has, then execution in step 403; If the one's respective area has part to be recorded a video data but imperfect by program request, then execution in step 404; If by the video recording data of program request, then execution in step 405 in the one's respective area.
Step 403: the VM server notification user of area B reads the storage resources of one's respective area, thereby finishes program request.Process ends.
The process that the VM server notification user of area B reads one's respective area IP SAN in this step comprises:
The VM server of area B is to the IP of one's respective area SAN application resource, to obtain by the memory address of program request video recording data, the memory address of obtaining is sent to the user, and the user reads by the video recording data of program request from the IP SAN of one's respective area according to memory address, thereby finishes program request.
Step 404: the VM server of area B or the VM server of regional A response user's order request, simultaneously the VM server of area B will lack the IP SAN that is copied to the B zone by program request video recording data of part from regional A, thereby will be additional complete by the program request data of recording a video.Process ends.
Specifically:
If the disappearance part is in the centre or the rear end that are requested program request video recording data, then the VM server notification user of area B reads from the IP SAN of one's respective area by the existing part of program request video recording data, from regional A, will partly be copied among the IP SAN in B zone simultaneously by the record a video disappearance of data of program request, thereby will by program request record a video data replenish complete so that user's program request next time.
If the disappearance part is at the front end of the data of being recorded a video by program request, then the VM server of area B is transmitted to regional A with user's order request earlier, responds this user's order request by regional A; From regional A, will partly be copied among the IP SAN in B zone simultaneously by the record a video disappearance of data of program request; When copy is finished, notify the user to resume studies at once and get by program request video recording data from the IP SAN relaying of one's respective area.Wherein, user's order request is transmitted to remote area, the detailed process that is responded this user's order request by remote area is identical with the process of existing cross-domain on-demand, does not give unnecessary details here.
Step 405: the VM server of area B is transmitted to regional A with user's order request earlier, responds this user's order request by regional A; From regional A, will be copied among the IP SAN in B zone simultaneously by the program request data of recording a video; When copy is finished, notify the user to resume studies at once and get by program request video recording data from the IP SAN relaying of one's respective area.
So far, this flow process finishes.
Preferably, copy the video recording data of regional A to area B after, be equivalent to the video recording data are carried out remote backup.The video recording data of these remote backups can be shared user's order request for regional A.For the video recording data that adopt backup are shared user's order request, after the video recording data with regional A were copied to area B, the video recording data that these can be copied to area B were registered as the VM server that cross-domain stored information sends to regional A in the memory address of area B.Specifically,
The video recording data of zone A are copied to after the IP SAN of area B, the VM server of area B generates cross-domain stored information, and this cross-domain stored information specifically comprises information, the one's respective area sign of the video recording data that are copied and the storage address information of video recording data in the one's respective area that be copied.Wherein, the be copied information of video recording data can comprise the time period of the data of record a video and gather this camera information of data of recording a video that is copied; The storage address information of the video recording data that are copied in the one's respective area comprises IP address, port information and the IP SAN resource address of video recording data place IP SAN.The VM server of the area B cross-domain stored information that will the generate VM server that sends to regional A is registered then.A cross-domain stored information to area B in local resource data store storehouse in zone is carried out corresponding registration, and concrete register content is referring to table 1.
| The alarm camera | Time period | Local storage address information | Other area stores address informations |
| Camera A | T1? | IP address, port information, IPSAN address information | Area B, IP address, port information, IPSAN address information |
| Camera A | T1? | IP address, port information, IPSAN address information | Zone C, IP address, port information, IPSAN address information |
Table 1
When having a plurality of users, regional A initiates order request simultaneously, and the storage resources of regional A is not enough to respond these whens request, the VM server of zone A is according to the cross-domain stored information of this locality registration, judge the backup that whether has in other zones by program request video recording data, if have, then notify the user to have by the remote area request of program request video recording data by the program request data of recording a video to backup.When request backup video recording data, the VM server of zone A can send to backup with user's order request according to existing cross-domain on-demand scheme to be had by the VM server in the zone of program request video recording data, after this regional VM server is received order request, return the program request response message to the user, finish program request; Preferably, present embodiment can also carry in order request by the storage address information of program request video recording data, and incense part has by the VM server in the zone of program request video recording data uses; Perhaps, the user is according to the storage resources of directly being visited remote area by program request video recording data in the storage address information of far-end, if but remote area need be to operations such as user access control and authentications, then still need the user to send request to the VM of remote area server, after control to be visited and authentication pass through, again according to being conducted interviews in the storage address information of far-end by program request video recording data.
A large amount of long-time for fear of storage not by the cross-domain video recording data of program request, each regional VM server is the video recording data configuration ageing time of each time period of each camera of cross-domain storage, when certain section of cross-domain storage is recorded a video data by a sowing time, the for example zero clearing of ageing time of these video recording data of resetting is when the ageing time of certain section of cross-domain storage video recording data arrives the ageing time limit T that is provided with
1hThe time, aging these section video recording data.
Aging operation can be deletion video recording data, or is that this section video recording data are stamped aging label, and keeps one default period, if these section video recording data are by program request between retention period, the ageing time of then resetting is removed aging label, if retention time surpasses the longest default reservation duration T
B1, then delete the video recording data of this time period.The longest reservation duration T certainly is set
B1Equal ageing time limit T
1h
In order to realize above-mentioned cross-domain on-demand method, the embodiment of the invention provides a kind of VM server that is applied to extensive video monitoring system.Fig. 5 shows the structural representation of VM server in the embodiment of the invention.As shown in Figure 5, this VM server comprises transregional copy cell 51, program request processing unit 52 and cross-domain copy program request response unit 53.
Wherein, transregional copy cell 51, be used for the video recording data when periodically the active request remote area is alarmed, and/or under the triggering of user's program request incident, ask the video recording data of remote area, the video recording data that meet request condition in the remote area are copied to the storage resources of one's respective area.
Program request processing unit 52, be used for when the video recording data of one's respective area user's program request remote area, judge whether have completely by program request video recording data in the storage resources of one's respective area, if having, then the notice user that proposes order request reads by program request video recording data from the storage resources of one's respective area; Otherwise,, and control transregional copy cell 51 and will be copied to the storage resources of one's respective area by the complete video recording data of program request with the VM server cooperative response user's of remote area order request;
Cross-domain copy program request is replied single 53 yuan, is used for returning the relevant information of requested video recording data when the video recording data of remote area request copy one's respective area; When the video recording data of remote area request program request one's respective area, the response order request.
Described alarm record comprises headend equipment information, warning strategies and the alarm moment that produces alarm.Initiatively copy module 511 the time according to alarm record copies video recording data, when the video recording strategy that produces the headend equipment of alarm when remote area was the alarm triggered video recording, the headend equipment that will produce alarm was copied to the storage resources of one's respective area in the video recording data of alarm back storage constantly; The video recording strategy of headend equipment that produces alarm when remote area is when recording a video according to plan, and the video recording data that will cover one section scheduled duration in the alarm moment are copied to the storage resources of one's respective area.
Described alarm record further comprises alarm type, and when then initiatively copying module 511 from remote area copy video recording data, copy meets the video recording data of setting alarm type.
Correspondingly, cross-domain copy program request response unit 53 is further used for when the alarm inquiry request that receives from remote area, and the alarm record of one's respective area is returned to remote area as the relevant information of described requested video recording data; When remote area request copy video recording data, the storage address information of the data of recording a video being copied returns to remote area as the relevant information of described requested video recording data.
The program request Event triggered copies module 512, is used under the control of program request processing unit 52 the video recording data of remote area being copied to the storage resources of one's respective area.
Program request processing unit 52 comprises program request judge module 524, first read module 521, second read module 522 and third reading delivery piece 523.
Program request judge module 524 is used for when the video recording data of one's respective area user's program request remote area, judge whether have in the storage resources of one's respective area complete by program request video recording data; If have the complete data of being recorded a video by program request, then notify first read module 521; If part is arranged by the program request data of recording a video, then notifies second processing module 522; If, then do not notify the 3rd processing module 523 by program request video recording data.
First read module 521 is used for when receiving notice, and the user of notice extraction order request reads by program request video recording data from the storage resources of one's respective area.
Third reading delivery piece 523, be used for when receiving notice, earlier user's order request is transmitted to remote area, respond this user's order request by remote area, this third reading delivery piece 523 control program request Event triggered copy modules 512 will be copied in the storage resources of one's respective area by the program request data of recording a video from remote area simultaneously; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area.
Preferably, cross-domain copy cell 51 further comprises cross-domain stored information logging modle 513, be used for initiatively copying after module 511 or program request Event triggered copy module 512 is copied to the storage resources of one's respective area with the video recording data of remote area, generate cross-domain stored information, be used for record copies to the video recording data of one's respective area memory address in the one's respective area; The VM server that the cross-domain stored information that generates is sent to remote area is registered; When the cross-domain stored information that receives from remote area, register in the one's respective area.Cross-domain stored information can be registered in the VM server, also can be registered in the one's respective area and be responsible for specially in the storage database of storage data management.
Correspondingly, program request processing unit 52 comprises that further concurrent request shares module (not shown among Fig. 5), when being used for storage resources and being not enough to respond simultaneously concurrent a plurality of user's order request in the one's respective area, cross-domain stored information according to the one's respective area registration, judge the backup that whether has in other zones by program request video recording data, if have, notify the user to have by the region request of program request video recording data by the program request data of recording a video to backup.
Cross-domain stored information logging modle 513 further is the video recording data configuration ageing time of each time period of each headend equipment of cross-domain storage, when one section of cross-domain storage video recording data by a sowing time, the ageing time of this section video recording data of resetting,, ageing time prescribes a time limit aging these section video recording data when arriving the ageing time that is provided with.
In sum, more than be preferred embodiment of the present invention only, be not to be used to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (14)
1. the cross-domain on-demand method in the video monitoring system, described video monitoring system comprises a plurality of zones that link to each other by middle bearer network, and wherein, the user region is the one's respective area, other zone is a remote area in described a plurality of zone, and a cover area monitoring system is disposed in each zone; It is characterized in that this method comprises:
The video management server in the arbitrary zone video recording data in active request remote area when alarm periodically in the described video monitoring system, or under the triggering of user's program request incident the video recording data of request remote area, the video recording data that meet request condition in the remote area are copied to the storage resources of one's respective area;
When described video management server is asked the video recording data of program request remote area the one's respective area user, judge whether have in the storage resources of one's respective area complete by program request video recording data, if have, then notify described user to read by program request video recording data from the storage resources of one's respective area; Otherwise if there is part the one's respective area by the video recording data of program request, the video management server of remote area responds this user's order request, will lack the storage resources that is copied to the one's respective area by program request video recording data of part from remote area; If the one's respective area does not exist by the video recording data of program request, the video management server of remote area responds this user's order request, the complete data of being recorded a video by program request is copied to the storage resources of one's respective area from remote area.
2. the method for claim 1, it is characterized in that, video recording data during the alarm of the periodic active request remote area of video management server, and the video recording data that meet request condition in the remote area are copied to the process of the storage resources of one's respective area, comprising:
Video management server periodically sends the alarm inquiry request to the video management server of remote area, and this alarm inquiry request is used to inquire about the alarm record of remote area; According to the alarm record, the video recording data that produce headend equipment collection when alarming of alarm in the remote area are copied to the storage resources of one's respective area.
3. method as claimed in claim 2 is characterized in that, described alarm record comprises headend equipment information, warning strategies and the alarm moment that produces alarm;
Described according to the alarm record, the video recording data that the headend equipment that produces alarm in the remote area is gathered when the alarm are copied to the storage resources of one's respective area, comprising:
When the video recording strategy that produces the headend equipment of alarm in the remote area is the alarm triggered video recording, the headend equipment that produces alarm is copied to the storage resources of one's respective area in the video recording data of alarm back storage constantly;
When the video recording strategy of the headend equipment that produces alarm in the remote area when recording a video according to plan, the video recording data that will cover one section scheduled duration in the alarm moment are copied to the storage resources of one's respective area.
4. method as claimed in claim 3 is characterized in that, described alarm record further comprises alarm type, and during then from remote area copy video recording data, copy meets the video recording data of setting alarm type.
5. the method for claim 1, it is characterized in that, respond one's respective area user's order request when the video management server of described remote area, when part was arranged in the storage resources of one's respective area by the video recording data of program request, the storage resources that is copied to the one's respective area by program request video recording data that will lack part from remote area comprised:
If part is arranged in the storage resources of one's respective area by the program request data of recording a video, and the disappearance part is in the centre or the rear end of the data of being recorded a video by program request, then video management server notifies the user to read by the existing part of program request video recording data from the storage resources of one's respective area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request from remote area simultaneously;
If part is arranged in the storage resources of one's respective area by the program request data of recording a video, and the disappearance part is at the front end of the data of being recorded a video by program request, then video management server is transmitted to remote area with user's order request earlier, respond this user's order request by remote area, from remote area, will partly be copied in the storage resources of one's respective area simultaneously by the record a video disappearance of data of program request; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area;
When the video management server of described remote area response one's respective area user's order request, when the one's respective area did not exist by the video recording data of program request, the storage resources that the data of being recorded a video by program request that will be complete from remote area copy the one's respective area to comprised:
Video management server earlier is transmitted to remote area with user's order request, responds this user's order request by remote area, will be copied in the storage resources of one's respective area by the program request data of recording a video from remote area simultaneously; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area.
6. as any described method of claim 1 to 5, it is characterized in that this method further comprises:
The video recording data of remote area are copied to after the storage resources of one's respective area, and video management server generates cross-domain stored information, is used for record copies to the video recording data of the one's respective area memory address in the one's respective area; The video management server that the cross-domain stored information that generates is sent to remote area is registered;
When the storage resources of remote area is not enough to respond simultaneously concurrent a plurality of user's order request, the video management server of this remote area is according to the cross-domain stored information of one's respective area registration, judge the backup that whether has in other zones by program request video recording data, if have, notify the user to have by the region request of program request video recording data by the program request data of recording a video to backup.
7. method as claimed in claim 6, it is characterized in that, this method further comprises: video management server is the video recording data configuration ageing time of each time period of each headend equipment of cross-domain storage, when one section of cross-domain storage video recording data by a sowing time, the ageing time of this section video recording data of resetting, when arriving the ageing time that is provided with, ageing time prescribes a time limit, aging these section video recording data, wherein, described aging operation is this section of deletion video recording data, or be that this section video recording data are stamped aging label, and keep one default period.
8. a video management server is characterized in that, this video management server comprises transregional copy cell, program request processing unit and cross-domain copy program request response unit;
Described transregional copy cell is used for the video recording data when periodically the active request remote area is alarmed, and the video recording data that meet request condition in the remote area is copied to the storage resources of one's respective area;
Described program request processing unit, be used for when the video recording data of one's respective area user's program request remote area, judge whether have completely in the storage resources of one's respective area,, then notify described user to read by program request video recording data from the storage resources of one's respective area if having by program request video recording data; Otherwise if there is part the one's respective area by the video recording data of program request, the video management server of remote area responds this user's order request, will lack being copied in the storage resources of one's respective area by program request video recording data of part from remote area; If the one's respective area does not exist by the video recording data of program request, the video management server of remote area responds this user's order request, the complete data of being recorded a video by program request is copied to the storage resources of one's respective area from remote area;
Cross-domain copy program request response unit is used for returning the relevant information of requested video recording data when the video recording data of remote area request copy one's respective area; When the video recording data of remote area request program request one's respective area, the response order request.
9. video management server as claimed in claim 8, it is characterized in that, described transregional copy cell comprises and initiatively copies module, is used for periodically sending the alarm inquiry request to the video management server of remote area, and this alarm inquiry request is used to inquire about the alarm record of remote area; According to the alarm record that remote area returns, the video recording data that produce headend equipment collection when alarming of alarm in the remote area are copied to the storage resources of one's respective area;
Described cross-domain copy program request response unit returns the alarm record of one's respective area when the alarm inquiry request that receives from remote area; When remote area request copy video recording data, return the storage address information of the video recording data that are copied.
10. video management server as claimed in claim 9 is characterized in that, described alarm record comprises headend equipment information, warning strategies and the alarm moment that produces alarm;
The described module that initiatively copies is according to alarm record copies video recording data the time, when the video recording strategy that produces the headend equipment of alarm when remote area was the alarm triggered video recording, the headend equipment that will produce alarm was copied to the storage resources of one's respective area in the video recording data of alarm back storage constantly;
The video recording strategy of headend equipment that produces alarm when remote area is when recording a video according to plan, and the video recording data that will cover one section scheduled duration in the alarm moment are copied to the storage resources of one's respective area.
11. video management server as claimed in claim 10 is characterized in that, described alarm record further comprises alarm type, and is then described when initiatively copy module from remote area copy video recording data, copies to meet the video recording data of setting alarm type.
12. video management server as claimed in claim 8 is characterized in that, described transregional copy cell comprises program request Event triggered copy module, is used under the control of program request processing unit the video recording data of remote area being copied to the storage resources of one's respective area;
Described program request processing unit comprises program request judge module, first read module, second read module and third reading delivery piece;
Described program request judge module is used for when the video recording data of one's respective area user's program request remote area, judge whether have in the storage resources of one's respective area complete by program request video recording data; If have the complete data of being recorded a video by program request, then notify first read module; If part is arranged by the program request data of recording a video, then notifies second processing module; If, then do not notify the 3rd processing module by program request video recording data;
Described first read module is used for when receiving notice, notifies described user to read by program request video recording data from the storage resources of one's respective area;
Described second read module is used for when receiving notice, judges the position of disappearance part in the data of being recorded a video by program request; If the disappearance part is in the centre or the rear end of the data of being recorded a video by program request, then notify the user to read by the existing part of program request video recording data, control described program request Event triggered copy module simultaneously and from remote area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request from the storage resources of one's respective area; If the disappearance part is at the front end of the data of being recorded a video by program request, then earlier user's order request is transmitted to remote area, respond this user's order request by remote area, control described program request Event triggered copy module simultaneously and from remote area, will partly be copied in the storage resources of one's respective area by the record a video disappearance of data of program request; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area;
Described third reading delivery piece, be used for when receiving notice, earlier user's order request is transmitted to remote area, respond this user's order request by remote area, control described program request Event triggered copy module simultaneously and from remote area, will be copied in the storage resources of one's respective area by the program request data of recording a video; When copy is finished, notify the user to continue to read by program request video recording data from the storage resources of one's respective area.
13. as any described video management server of claim 8 to 12, it is characterized in that, described cross-domain copy cell comprises cross-domain stored information logging modle, the video recording data that are used for remote area are copied to after the storage resources of one's respective area, generate cross-domain stored information, be used for record copies to the video recording data of one's respective area memory address in the one's respective area; The video management server that the cross-domain stored information that generates is sent to remote area is registered; When the cross-domain stored information that receives from remote area, register in the one's respective area;
Described program request processing unit comprises that concurrent request shares module, when being used for storage resources and being not enough to respond simultaneously concurrent a plurality of user's order request in the one's respective area, cross-domain stored information according to the one's respective area registration, judge the backup that whether has in other zones by program request video recording data, if have, notify the user to have by the region request of program request video recording data by the program request data of recording a video to backup.
14. video management server as claimed in claim 13, it is characterized in that, the video recording data configuration ageing time of each time period of each headend equipment that described cross-domain stored information logging modle further is cross-domain storage, when one section of cross-domain storage video recording data by a sowing time, the ageing time of this section video recording data of resetting, when arriving the ageing time that is provided with, ageing time prescribes a time limit, aging these section video recording data, wherein, described aging operation is this section of deletion video recording data, or be that this section video recording data are stamped aging label, and keep one default period.
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| CN102413302B (en) * | 2011-07-29 | 2018-03-13 | 中兴通讯股份有限公司 | The method and apparatus for back-up processing of being recorded a video in video monitoring, alternate device |
| CN102387201B (en) * | 2011-10-20 | 2015-08-19 | 华为技术有限公司 | The methods, devices and systems of business data processing |
| US9210195B2 (en) | 2011-10-20 | 2015-12-08 | Huawei Technologies Co., Ltd. | Method, apparatus, and system for processing service data |
| CN102595209A (en) * | 2012-01-19 | 2012-07-18 | 杭州华三通信技术有限公司 | Cross-domain on-demand method in video monitoring system and video management server |
| CN102647309A (en) * | 2012-04-19 | 2012-08-22 | 重庆网力视界科技有限公司 | Distributed monitoring method and distributed monitoring system |
| CN104699565A (en) * | 2013-12-10 | 2015-06-10 | 光阳工业股份有限公司 | File backup method for motorcycle tachograph |
| CN103986757B (en) * | 2014-05-09 | 2017-12-15 | 浙江宇视科技有限公司 | A kind of distributed backup method and system of piece of storage video recording |
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