CN103595736B - Access request treating method and apparatus in video monitoring system - Google Patents
Access request treating method and apparatus in video monitoring system Download PDFInfo
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- CN103595736B CN103595736B CN201210287805.XA CN201210287805A CN103595736B CN 103595736 B CN103595736 B CN 103595736B CN 201210287805 A CN201210287805 A CN 201210287805A CN 103595736 B CN103595736 B CN 103595736B
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Abstract
The invention discloses the access request treating method and apparatus in video monitoring system: cluster management node pre-establishes the mapping relations between the monitoring device in video monitoring system and video forwarding server, wherein, each monitoring device is uniquely mapped to a video forwarding server；When receiving the access request that any user is issued for any monitoring device X, cluster management node is carried out the following processing: determining the video forwarding server Y that monitoring device X is mapped to；Access request is redirected on video forwarding server Y, the processing to access request is completed by video forwarding server Y.Using scheme of the present invention, the performance bottleneck of monitoring device can be overcome.
Description
Technical field
The present invention relates to Video Supervision Techniques, in particular to access request processing method and dress in video monitoring system
It sets.
Background technique
In the video monitoring system of security industry, many monitoring devices are usually dispersed with, such as camera, digitally recorded video
Camera (DVR, Digital Video Recorder), digital video frequency server (DVS, Digital Video Server) etc..
In general, the processing capacity of single monitoring device is limited, i.e., the user's amount of access supported simultaneously is limited, certain high definitions
Monitoring device even can only at most support user's access simultaneously, for this purpose, video forwarding server cluster is introduced, to prop up
The user's access for holding large concurrent, to avoid the performance bottleneck of single monitoring device.Specifically, it is mainly forwarded using each video
The video code flow all the way got from monitoring device is converted into multi-channel video code stream, simultaneously by the distribution function of server
Video service is provided for multiple users.Relationship of the Fig. 1 between existing user, video forwarding server cluster and monitoring device
Schematic diagram.
Accordingly, due to being related to multiple video forwarding servers, thus also need to consider each video forwarding server it
Between problem of load balancing.
In the prior art, mainly the load balancings such as idle degrees according to each video forwarding server load to realize
Equilibrium, still, this mode can have certain problems in practical applications, such as: the access for same monitoring device may
It can be assigned on different video forwarding servers, so as to cause monitoring device performance bottleneck etc. occur.
Summary of the invention
In view of this, can overcome the present invention provides the access request treating method and apparatus in video monitoring system
The performance bottleneck of monitoring device.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of access request processing method in video monitoring system, comprising:
Cluster management node pre-establishes between the monitoring device in the video monitoring system and video forwarding server
Mapping relations, wherein each monitoring device is uniquely mapped to a video forwarding server；
When receive any user for any monitoring device X issue access request when, the cluster management node into
The following processing of row:
Determine the video forwarding server Y that the monitoring device X is mapped to；
The access request is redirected on the video forwarding server Y, is completed by the video forwarding server Y
Processing to the access request.
A kind of cluster management node, comprising:
Module is established, for the monitoring device in video monitoring system where pre-establishing and between video forwarding server
Mapping relations, wherein each monitoring device is uniquely mapped to a video forwarding server；
Processing module, for when receive any user for any monitoring device X issue access request when, carry out with
Lower processing: the video forwarding server Y that the monitoring device X is mapped to is determined；The access request is redirected to the view
On frequency forwarding server Y, the processing to the access request is completed by the video forwarding server Y.
As it can be seen that each monitoring device can only be uniquely mapped to a video forwarding server using scheme of the present invention
On, that is to say, that for each monitoring device, synchronization at most can only be accessed by a video forwarding server, thus gram
The performance bottleneck of monitoring device is taken.
Detailed description of the invention
Relation schematic diagram of the Fig. 1 between existing user, video forwarding server cluster and monitoring device.
Fig. 2 is the flow chart of the access request processing method embodiment in video monitoring system of the present invention.
Fig. 3 is the corresponding numberical range schematic diagram of each dummy node of the present invention.
Mapping relations schematic diagram of the Fig. 4 between monitoring device of the present invention and dummy node.
Mapping relations schematic diagram of the Fig. 5 between dummy node of the present invention and video forwarding server.
Mapping relations schematic diagram of the Fig. 6 between monitoring device of the present invention, dummy node and video forwarding server.
Fig. 7 is the realization process schematic of step 22 of the present invention.
Fig. 8 is the realization that user of the present invention obtains video code flow by two-stage video forwarding server from monitoring device X
Process schematic.
Fig. 9 is the implementation flow chart of step 22 of the present invention.
Figure 10 is the composite structural diagram schematic diagram of cluster management node embodiment of the present invention.
Specific embodiment
Aiming at the problems existing in the prior art, the access in a kind of improved video monitoring system is proposed in the present invention
Processing scheme is requested, the access request of user is received by the cluster management node in video forwarding server cluster, then basis
The access request of user is redirected on specific video forwarding server by load-balancing algorithm, from video forwarding server to
Monitoring device obtains video code flow, and returns to user.
In order to be clearer and more clear technical solution of the present invention, hereinafter, referring to the drawings and the embodiments, to institute of the present invention
The scheme of stating is described in further detail.
Fig. 2 is the flow chart of the access request processing method embodiment in video monitoring system of the present invention.As shown in Fig. 2,
The following steps are included:
Step 21: cluster management node pre-establish monitoring device in video monitoring system and video forwarding server it
Between mapping relations, wherein each monitoring device is uniquely mapped to a video forwarding server.
The specific implementation of this step may include following steps 1)~4).
1) cluster management node is respectively that each monitoring device in video monitoring system distributes a unique index volume
Number, for example, can be using the IP+ of each monitoring device port numbers+channel number as its index number.
2) cluster management node creates N number of dummy node at itself, and N is positive integer, and typically larger than video monitoring system
In video forwarding server (the video forwarding server registered on cluster management node) number T, N number of dummy node
Number is followed successively by 1~N；Also, create the numerical space of a 0~N*K, step-length K, wherein the dummy node pair that number is n
The numberical range answered is (n-1) * K~n*K, 1≤n≤N, K > 0.
Fig. 3 is the corresponding numberical range schematic diagram of each dummy node of the present invention.As shown in figure 3, the dummy node that number is 1
I.e. the corresponding numberical range of dummy node 1 is 0~K, and the i.e. corresponding numberical range of dummy node 2 of the dummy node that number is 2 is K
~2K, it is other no longer to repeat one by one.
3) it is directed to each monitoring device, cluster management node is respectively according to the index number of the monitoring device, according to predetermined
Algorithm calculates a numerical value M between 0~N*K, and the monitoring device is mapped to numberical range pair belonging to numerical value M
On the dummy node answered.
For example, if the calculated numerical value M of index number according to a monitoring device is located in the numberical range of K~2K,
The monitoring device is then mapped to dummy node 2.
Which kind of specifically can be determined according to actual needs using algorithm come evaluation M, for example, Hash (Hash) calculation can be used
The combination of method and modulus algorithm.
In practical applications, after calculating numerical value M according to the index number of a monitoring device, the monitoring can also be set
It is standby to be mapped on the dummy node that number is M/K, if the value of M/K is not integer, it is rounded upward or downward.It is specific to use
Which kind of mode can be determined according to actual needs.
Mapping relations schematic diagram of the Fig. 4 between monitoring device of the present invention and dummy node.Each monitoring device is unique
Be mapped to a dummy node, but one dummy node may there are mapping relations between multiple monitoring devices.
4) cluster management node establishes the mapping relations between dummy node and video forwarding server, wherein Mei Gexu
Quasi- node is uniquely mapped on a video forwarding server, but each video forwarding server can be with more than one virtual section
There are mapping relations between point, i.e., one video forwarding server may there are mapping relations between multiple dummy nodes.
As previously mentioned, the number N of dummy node is typically larger than the number T of video forwarding server, preferably, dummy node
Number N and video forwarding server number T between distribution can be forwarded and take according to user's request amount of monitoring device, video
The factors setting such as the idle degrees of business device and performance.
Illustrate, it is assumed that the number of monitoring device be 36, the number N=6 of dummy node, respectively number consecutively be 1~
6, step-length K=6, the number T=4 of video forwarding server, number consecutively is 1~4 respectively, and be specifically allocated as follows: number is 1
Video video forwarding server is mapped to the dummy node that number is 1, and the video video forwarding server that number is 2 is mapped to volume
Number be 2 dummy node, the video video forwarding server that number is 3 be mapped to number be 3 and 4 dummy node, number 4
Video video forwarding server be mapped to number be 5 and 6 dummy node because for number be 1 and 2 dummy node reflect
For the monitoring device being mapped to, user is frequently and a large amount of to their access request, or the video that number is 1 and 2 forwards clothes
Be engaged in device performance it is lower, and number the monitoring device that is mapped to of dummy node for being 3,4,5,6, user to these monitoring devices very
Access request or other factors are proposed less.In conclusion between the number N of dummy node and the number T of video forwarding server
Distribution setting, can user's request amount appropriate in view of monitoring device, video forwarding server idle degrees and performance
Etc. factors.
Mapping relations schematic diagram of the Fig. 5 between dummy node of the present invention and video forwarding server.
By above-mentioned steps 1)~4) processing after, each monitoring device can be uniquely mapped to a dummy node, and
Each dummy node can be uniquely mapped to a video forwarding server again, and therefore, each monitoring device can uniquely map
To a video forwarding server.Mapping of the Fig. 6 between monitoring device of the present invention, dummy node and video forwarding server is closed
It is schematic diagram.
The benefit for introducing dummy node is that cluster management node is realizing the mapping of monitoring device to video forwarding server
When, it does not spend and how many video forwarding server on earth in video monitoring system is considered, and having video forwarding server
When being added or exiting and when monitoring device is added or exits, without remapping to original monitoring device, so as to
The easily scale of extending video monitoring system and performance etc..
Foregoing is directed to the specific value of N, K, T etc. can be determined according to actual needs.
Step 22: when receiving the access request that any user is issued for any monitoring device X, cluster management node
It carries out the following processing: determining the video forwarding server Y that monitoring device X is mapped to；Access request is redirected to video forwarding
On server Y, the processing to access request is completed by video forwarding server Y.
It is subsequent on the basis of completing step 21, the visit that any monitoring device X is issued is directed to when often receiving any user
When asking request, cluster management node can be handled according to mode shown in step 22.
It should be noted that it is convenient for statement, in various embodiments of the present invention, any user hair is represented with monitoring device X
The corresponding monitoring device of any access request out represents the video that monitoring device X is mapped to video forwarding server Y and turns
Send out server.
Fig. 7 is the realization process schematic of step 22 of the present invention.Specifically, it is directed to when often receiving any user
When the access request that any monitoring device X is issued, cluster management node can determine the virtual section that monitoring device X is mapped to first
Point further determines that the video forwarding server Y that the dummy node that monitoring device X is mapped to is mapped to, and access is asked later
It asks and is redirected on video forwarding server Y, the processing to access request, i.e. cluster management are completed by video forwarding server Y
The uniform resource locator (URL, Uniform Resource Locator) of video forwarding server Y is sent to use by node
Family, user access video forwarding server Y according to the URL received, are obtained from monitoring device X by video forwarding server Y
Video code flow, and return to user.
Preferably, in step 22, cluster management node on access request to be redirected to video forwarding server Y it
Before, also it can first determine whether video forwarding server Y load value reaches the upper limit, if it is not, then access request is redirected to
On video forwarding server Y；If it is, access request is redirected to a selected load value lower than preset threshold value
On video forwarding server, by selected video forwarding server by being interacted with video forwarding server Y, completion pair
The processing of access request.
The real time load value that each video forwarding server can be safeguarded in cluster management node takes when determining that video forwards
When the load value of business device Y reaches the upper limit, a cascade URL can be returned to user, may include two-stage in the cascade URL
URL, second level URL are the URL of video forwarding server Y, and first order URL is the URL of selected video forwarding server, are used
Family can access selected video forwarding server according to first order URL, and second level URL is sent to selected video and is turned
Server is sent out, later, selected video forwarding server obtains the video codes of monitoring device Y from video forwarding server Y
Stream, and return to user.
Fig. 8 is the realization that user of the present invention obtains video code flow by two-stage video forwarding server from monitoring device X
Process schematic.As shown in figure 8, video forwarding server Y ' is selected video forwarding server, it is cluster management
The video forwarding server of the selected light load of node uses it to the load pressure for alleviating video forwarding server Y
Power, and not will increase the performance burden of monitoring device X, how to select which video forwarding server to forward service for as video
Device Y ' can be determined according to actual needs.
In addition, cluster management node may further determine that before determining the video forwarding server Y that monitoring device X is mapped to
Whether monitoring device X is legal, if it is, determine the video forwarding server Y that monitoring device X is mapped to, otherwise, it determines this
Access failure.
Based on above-mentioned introduction, Fig. 9 is the implementation flow chart of step 22 of the present invention.As shown in Figure 9, comprising:
Step 91: cluster management node receives any user and is directed to the access request that any monitoring device X is issued.
Step 92: whether cluster management node determines monitoring device X legal, if so, thening follow the steps 93, otherwise, holds
Row step 97.
How to determine whether monitoring device X is legal for the prior art.
Step 93: cluster management node determines the video forwarding server Y that monitoring device X is mapped to.
Step 94: cluster management node determines whether the load value of video forwarding server Y reaches the upper limit, if it is not, then
Step 95 is executed, if so, thening follow the steps 96.
Step 95: access request is redirected on video forwarding server Y by cluster management node, is forwarded and is serviced by video
Device Y completes the processing to access request, terminates process.
Step 96: access request is redirected to a selected load value lower than preset threshold value by cluster management node
On video forwarding server, by selected video forwarding server by being interacted with video forwarding server Y, completion pair
The processing of access request terminates process.
Step 97: determining this access failure, terminate process.
So far, that is, the introduction about embodiment of the present invention method is completed.
Figure 10 is the composite structural diagram schematic diagram of cluster management node embodiment of the present invention.As shown in Figure 10, comprising:
Module is established, for the monitoring device in video monitoring system where pre-establishing and between video forwarding server
Mapping relations, wherein each monitoring device is uniquely mapped to a video forwarding server；
Processing module, for when receive any user for any monitoring device X issue access request when, carry out with
Lower processing: the video forwarding server Y that monitoring device X is mapped to is determined；Access request is redirected to video forwarding server Y
On, the processing to access request is completed by video forwarding server Y.
Wherein, establishing in module may particularly include:
Allocation unit, for being respectively that each monitoring device in video monitoring system distributes a unique index volume
Number；
Unit is established, for creating N number of dummy node, N is positive integer, and the video forwarding being greater than in video monitoring system
The number T of server, the number of N number of dummy node are followed successively by 1~N；And create the numerical space of a 0~N*K, wherein compile
Number corresponding numberical range of dummy node for being n is (n-1) * K~n*K, 1≤n≤N, K > 0；For each monitoring device, divide
Not according to the index number of the monitoring device, a numerical value M between 0~N*K is calculated according to pre-defined algorithm, and should
Monitoring device is mapped on the corresponding dummy node of numberical range belonging to numerical value M；It establishes dummy node and video forwarding services
Mapping relations between device, wherein each dummy node is uniquely mapped on a video forwarding server, and each video turns
There are mapping relations between hair server and more than one dummy node；
Processing module determines the dummy node that monitoring device X is mapped to, and further determines that the void that monitoring device X is mapped to
The video forwarding server Y that quasi- node is mapped to.
It may particularly include in processing module:
Receiving unit, for when receiving the access request that any user is issued for any monitoring device X, at notice
Reason unit executes itself function；
Processing unit, the video forwarding server Y being mapped to for determining monitoring device X；Access request is redirected to
On video forwarding server Y, the processing to access request is completed by video forwarding server Y.
In addition, processing unit can be further used for, before access request being redirected on video forwarding server Y,
Determine whether the load value of video forwarding server Y reaches the upper limit, if it is not, then access request is redirected to video forwarding clothes
It is engaged on device Y；If it is, access request is redirected to video forwarding clothes of the selected load value lower than preset threshold value
It is engaged on device, by selected video forwarding server by being interacted with video forwarding server Y, completes to access request
Processing.
Processing unit can be further used for, before determining the video forwarding server Y that monitoring device X is mapped to, really
Determine whether monitoring device X is legal, if it is, determine the video forwarding server Y that monitoring device X is mapped to, otherwise, it determines this
Secondary access failure.
The specific workflow of Figure 10 shown device embodiment please refers to the respective description in preceding method embodiment, herein
It repeats no more.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (9)
1. the access request processing method in a kind of video monitoring system characterized by comprising
Cluster management node pre-establishes reflecting between the monitoring device in the video monitoring system and video forwarding server
Penetrate relationship, specifically include: cluster management node creates multiple dummy nodes at itself, according to pre-defined rule by each monitoring device
It is uniquely mapped to a dummy node, each dummy node is uniquely mapped on a video forwarding server；
When receiving the access request that any user is issued for any monitoring device X, the cluster management node carry out with
Lower processing:
The video forwarding server Y that the monitoring device X is mapped to is determined according to the mapping relations, is specifically included: being determined institute
The dummy node that monitoring device X is mapped to is stated, and further determines that dummy node that the monitoring device X is mapped to is mapped to
Video forwarding server Y；
The access request is redirected on the video forwarding server Y, is completed by the video forwarding server Y to institute
State the processing of access request.
2. the method according to claim 1, wherein
The cluster management node creates multiple dummy nodes at itself, uniquely reflects each monitoring device according to pre-defined rule
Be mapped to a dummy node, each dummy node be uniquely mapped on a video forwarding server include:
The cluster management node is respectively that each monitoring device in the video monitoring system distributes a unique index
Number；
The cluster management node creates N number of dummy node at itself, and N is positive integer, and is greater than in the video monitoring system
Video forwarding server number T, the number of N number of dummy node is followed successively by 1~N；And create the number of a 0~N*K
It is worth space, wherein the corresponding numberical range of the dummy node that number is n is (n-1) * K~n*K, 1≤n≤N, K > 0；
For each monitoring device, the cluster management node is respectively according to the index number of the monitoring device, according to predetermined calculation
Method calculates a numerical value M between 0~N*K, and the monitoring device is mapped to numberical range belonging to numerical value M and is corresponded to
Dummy node on；
The cluster management node establishes the mapping relations between dummy node and video forwarding server, wherein each virtual
Node is uniquely mapped on a video forwarding server, between each video forwarding server and more than one dummy node
There are mapping relations.
3. method according to claim 1 or 2, which is characterized in that described that the access request is redirected to the view
Before on frequency forwarding server Y, further comprise:
The cluster management node determines whether the load value of the video forwarding server Y reaches the upper limit, if it is not, then by institute
Access request is stated to be redirected on the video forwarding server Y；
If it is, the access request is redirected to video forwarding clothes of the selected load value lower than preset threshold value
It is engaged on device, by selected video forwarding server by being interacted with the video forwarding server Y, completes to the visit
Ask the processing of request.
4. method according to claim 1 or 2, which is characterized in that the video that the determination monitoring device X is mapped to
Before forwarding server Y, further comprise:
The cluster management node determines whether the monitoring device X is legal, if it is, determining the monitoring device X mapping
The video forwarding server Y arrived, otherwise, it determines this access failure.
5. a kind of cluster management node characterized by comprising
Module is established, for the monitoring device in video monitoring system where pre-establishing and reflecting between video forwarding server
Relationship is penetrated, is specifically included: creating multiple dummy nodes, each monitoring device is uniquely mapped to a void according to pre-defined rule
Quasi- node, each dummy node are uniquely mapped on a video forwarding server；
Processing module, for when receiving the access request that any user is issued for any monitoring device X, carrying out following place
Reason: according to the mapping relations, determining the dummy node that the monitoring device X is mapped to, and further determines that the monitoring is set
The video forwarding server Y that the dummy node that standby X is mapped to is mapped to；The access request is redirected to the video forwarding
On server Y, the processing to the access request is completed by the video forwarding server Y.
6. cluster management node according to claim 5, which is characterized in that described establish in module include:
Allocation unit, for being respectively that each monitoring device in the video monitoring system distributes a unique index volume
Number；
Unit is established, for creating N number of dummy node, N is positive integer, and the video forwarding being greater than in the video monitoring system
The number T of server, the number of N number of dummy node are followed successively by 1~N；And the numerical space of a 0~N*K is created,
In, the corresponding numberical range of the dummy node that number is n is (n-1) * K~n*K, 1≤n≤N, K > 0；It is set for each monitoring
It is standby, respectively according to the index number of the monitoring device, a numerical value M between 0~N*K is calculated according to pre-defined algorithm,
And the monitoring device is mapped on the corresponding dummy node of numberical range belonging to numerical value M；It establishes dummy node and video turns
Send out the mapping relations between server, wherein each dummy node is uniquely mapped on a video forwarding server, each
There are mapping relations between video forwarding server and more than one dummy node.
7. cluster management node according to claim 5 or 6, which is characterized in that include: in the processing module
Receiving unit, for when receive any user for any monitoring device X issue access request when, notifier processes list
Member executes itself function；
The processing unit, the video forwarding server Y being mapped to for determining the monitoring device X；By the access request
It is redirected on the video forwarding server Y, the processing to the access request is completed by the video forwarding server Y.
8. cluster management node according to claim 7, which is characterized in that
The processing unit is further used for, before the access request being redirected on the video forwarding server Y,
Determine whether the load value of the video forwarding server Y reaches the upper limit, if it is not, then the access request is redirected to institute
It states on video forwarding server Y；If it is, the access request is redirected to a selected load value lower than preset
On the video forwarding server of threshold value, by selected video forwarding server by being carried out with the video forwarding server Y
The processing to the access request is completed in interaction.
9. cluster management node according to claim 7, which is characterized in that
The processing unit is further used for, before determining the video forwarding server Y that the monitoring device X is mapped to, really
Whether the fixed monitoring device X is legal, if it is, the video forwarding server Y for determining that the monitoring device X is mapped to, no
Then, this access failure is determined.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108093014A (en) * | 2016-11-21 | 2018-05-29 | 北京视联动力国际信息技术有限公司 | A kind of resource monitoring method and device |
| CN108093206A (en) * | 2016-11-21 | 2018-05-29 | 北京视联动力国际信息技术有限公司 | A kind of resource monitoring method and system |
| CN116112640A (en) * | 2017-10-18 | 2023-05-12 | 北京京东尚科信息技术有限公司 | Information transmission method, device and system |
| CN108551571B (en) * | 2018-05-16 | 2020-07-07 | 武汉微创光电股份有限公司 | Monitoring video distribution method, device and system and distribution server |
| CN110138730B (en) * | 2019-04-02 | 2021-10-08 | 视联动力信息技术股份有限公司 | Subscription method and device of protocol conversion equipment and storage medium |
| CN112532943B (en) * | 2020-11-30 | 2022-12-27 | 苏州浪潮智能科技有限公司 | Monitoring video distribution method, device, equipment and storage medium |
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