CN111698454B - Inter-domain resource pushing method and device for dynamically selecting optimal path - Google Patents
Inter-domain resource pushing method and device for dynamically selecting optimal path Download PDFInfo
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- CN111698454B CN111698454B CN201910184606.8A CN201910184606A CN111698454B CN 111698454 B CN111698454 B CN 111698454B CN 201910184606 A CN201910184606 A CN 201910184606A CN 111698454 B CN111698454 B CN 111698454B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/02—Topology update or discovery
- H04L45/04—Interdomain routing, e.g. hierarchical routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/12—Shortest path evaluation
- H04L45/127—Shortest path evaluation based on intermediate node capabilities
Abstract
The invention discloses an inter-domain resource pushing method and device for dynamically selecting an optimal path, which are applied to management equipment in a video monitoring network, and the method comprises the steps of firstly receiving self resource information and self resource pushing capacity issued by a lower domain, and receiving the own lower domain resource information and self resource pushing capacity issued by an intermediate domain; and then receiving a request of operating the target resource by the upper-level domain, comparing the resource pushing capacities of the intermediate domain and the lower-level domain which can provide the target resource, and selecting the intermediate domain or the lower-level domain with the minimum resource pushing capacity load to provide service. The invention weakens the hierarchical relation of cross-domain interconnection during resource sharing, enables the resource pushing to have a plurality of selectable ways, issues the resource information and the capability of each monitoring platform to the management equipment, and dynamically selects the optimal path of the resource pushing by the management equipment.
Description
Technical Field
The invention belongs to the technical field of inter-domain resource sharing, and particularly relates to an inter-domain resource pushing method and device for dynamically selecting an optimal path.
Background
Video monitoring is an important component of a safety precaution system, and is widely applied to many occasions due to intuition, accuracy, timeliness and rich information content. In recent years, with the rapid development of computers, networks, image processing and transmission technologies, the trend of video monitoring becomes more and more obvious.
In a video monitoring system, the interconnection of multiple levels of domains of a monitoring platform is a basic networking mode, in large-scale monitoring projects such as safe cities, the quantity of inter-domain resource sharing is very large, resource sharing consumes a large amount of performance, and particularly, a platform in the middle of a cascade relation needs to be received and pushed at the same time, so that the performance bottleneck can be formed.
At present, two monitoring platforms are interconnected through a monitoring inter-domain protocol (such as GB 28181), when an upper monitoring platform wants to acquire resources of a lower monitoring platform, the lower monitoring platform needs to perform sharing operation, and the lower monitoring platform sends resource information such as a directory and cameras therebelow to the upper monitoring platform one by one. If a plurality of superior monitoring platforms need to acquire a resource list of a certain subordinate monitoring platform, the subordinate monitoring platform needs to share each superior monitoring platform, and resources are sent to a plurality of superior domains one by one for many times, and such operation needs to occupy a large amount of resources of the subordinate monitoring platform.
In the prior art, each time an upper monitoring platform is added, a lower monitoring platform is required to share resources of the upper monitoring platform, the lower monitoring platform sends resource information of a directory and cameras below the directory to the upper monitoring platform one by one, and when the upper monitoring platform is increased, the number of the resource information is increased by multiple. In addition, the service pressure of the lower monitoring platform is determined by the upper monitoring platform, when the resource needs to be sent depends on when the upper monitoring platform applies for the resource, and if the upper monitoring platform applies for the resource, the lower monitoring platform is just busy with other services, which affects the stability of the main business. In addition, all authentication and shared message sending consume the performance of the monitoring platform where the resource is located, and cannot support large-scale horizontal extension.
Disclosure of Invention
The invention aims to provide an inter-domain resource pushing method and device for dynamically selecting an optimal path, so as to solve the problem of performance bottleneck encountered in inter-domain resource pushing in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
an inter-domain resource pushing method for dynamically selecting an optimal path is applied to management equipment in a video monitoring network, and comprises the following steps:
receiving self resource information and self resource pushing capacity issued by a lower domain;
receiving subordinate domain resource information and self resource pushing capacity of the subordinate domain, which are issued by the middle domain;
receiving a request of an upper-level domain for operating a target resource, comparing resource pushing capacities of an intermediate domain and a lower-level domain which can provide the target resource, and selecting the intermediate domain or the lower-level domain with the smallest resource pushing capacity load to provide service.
Further, the inter-domain resource pushing method for dynamically selecting the optimal path further includes:
and periodically acquiring the current resource pushing capacity of the intermediate domain and the lower domain, and updating the recorded resource pushing capacity.
Further, the receiving subordinate domain resource information owned by the intermediate domain and the resource pushing capability of the intermediate domain, which are issued by the intermediate domain, further includes:
and receiving a request for acquiring the resource information of the subordinate domain from the middle domain, informing the subordinate domain to push the resource information to the middle domain, and updating the current resource pushing capacity of the subordinate domain.
Further, the inter-domain resource pushing method for dynamically selecting the optimal path further includes:
and receiving self resource information and self resource pushing capability released by the intermediate domain.
Further, the resource information includes a resource name, a sharing code, an organization structure, and authentication information.
The invention also provides an inter-domain resource pushing device for dynamically selecting the optimal path, which is applied to management equipment in a video monitoring network, and comprises the following components:
the first receiving module is used for receiving self resource information and self resource pushing capacity issued by a lower domain;
the second receiving module is used for receiving the subordinate domain resource information and the self resource pushing capacity thereof issued by the middle domain;
the selection module is used for receiving a request of operating a target resource of a superior domain, comparing resource pushing capacities of a middle domain and a subordinate domain which can provide the target resource, and selecting the middle domain or the subordinate domain with the smallest resource pushing capacity load to provide service.
Further, the inter-domain resource pushing device for dynamically selecting the optimal path further includes:
and the updating module is used for periodically acquiring the current resource pushing capacity of the middle domain and the lower domain and updating the recorded resource pushing capacity.
Further, the second receiving module receives subordinate domain resource information owned by the second receiving module and resource pushing capability of the second receiving module, which are issued by the middle domain, and further performs the following operations:
and receiving a request for acquiring the resource information of the subordinate domain from the intermediate domain, informing the subordinate domain of pushing the resource information to the intermediate domain, and updating the current resource pushing capability of the subordinate domain.
Further, the second receiving module further performs the following operations:
and receiving self resource information and self resource pushing capability released by the intermediate domain.
Further, the resource information includes a resource name, a sharing code, an organization structure, and authentication information.
According to the inter-domain resource pushing method and device for dynamically selecting the optimal path, the resource pushing capacity of each monitoring platform is obtained through the management equipment, and then the monitoring platform with the minimum load is selected to obtain the target resource. The invention weakens the hierarchical relation of cross-domain interconnection during resource sharing, and leads the resource pushing to have a plurality of selectable ways. And releasing the resource information and the capability of each monitoring platform to the management equipment, and dynamically selecting the optimal path for pushing the resources by the management equipment.
Drawings
FIG. 1 is a schematic diagram of a monitoring platform networking in the prior art;
fig. 2 is a flowchart of an inter-domain resource pushing method for dynamically selecting an optimal path according to an embodiment of the present invention;
fig. 3 is a schematic diagram of monitoring platform networking according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the drawings and examples, which should not be construed as limiting the present invention.
In the application environment shown in fig. 1, resources are accessed in lower domains (VM 1, VM2, VM 5), resources are pushed to corresponding upper domains (VM 3, VM4, hereinafter collectively referred to as intermediate domains) through network messages, the intermediate domains receive the messages and then analyze the messages, add the messages into their databases, and simultaneously need to push the messages to their upper domains (VM 6, VM7, hereinafter collectively referred to as upper domains), the intermediate domains (VM 3, VM 4) both receive and process push messages of the lower domains and encapsulate the messages to push the resources to the upper domains, and performance pressure is high, and the performance bottleneck is usually formed.
The inter-domain resource pushing method for dynamically selecting the optimal path is applied to a cross-domain interconnection networking application environment, interconnection and intercommunication among domains at all levels are realized, and when the domains at the upper level need to acquire resources, target resources can be acquired from two ways of the intermediate domain or the lower domain.
In fig. 1, the intermediate domains VM3 and VM4 have become performance bottlenecks, but the resources IPC1-3 to be acquired by the upper domains VM6 and VM7 actually have their related information on VM1, VM2 and VM5, and do not necessarily need to be acquired by VM3 or VM4.
In one embodiment, as shown in fig. 2, an inter-domain resource pushing method for dynamically selecting an optimal path is provided, and is applied to a management device in a video surveillance network. An inter-domain resource pushing method for dynamically selecting an optimal path in this embodiment includes:
receiving self resource information and self resource pushing capacity issued by a lower domain;
receiving subordinate domain resource information and self resource pushing capacity which are issued by an intermediate domain;
receiving a request of a superior domain for operating a target resource, comparing resource pushing capabilities of an intermediate domain and a subordinate domain which provide the target resource, and selecting the intermediate domain or the subordinate domain with the minimum resource pushing capability load to provide services.
In this embodiment, the management device may be a cloud management server, or may also be an SDN controller and an SDN switch, the management device is not limited to a specific form of the management device in this application, the management device is disposed in a network, a monitoring platform of each level domain is described by taking a video management server VM as an example, and each video management server VM is to communicate with a management device network.
As shown in fig. 3, the management device is located in the network, resources such as cameras (IPC 1, IPC2, IPC 3) are accessed to VM1, VM2 \8230, etc. each monitoring platform in the lower domain issues own resource information to the management device, including resource name, sharing code, organization structure, authentication information, etc., and simultaneously configures an initial resource pushing capability according to the service load condition of the monitoring platform, and also issues the initial resource pushing capability to the management device.
Similarly, the intermediate domain monitoring platforms VM3 and VM4 also have local cameras themselves, which serve as subordinate domains of other monitoring platforms, and can also issue their resource information and resource pushing capability to the management device, which is not described herein again.
The management device of the present application further needs to acquire subordinate domain resource information and resource pushing capability owned by the intermediate domain, and the acquiring is implemented in many ways, which is described in the following examples:
in one embodiment, the management device receives a request for acquiring resource information of a lower domain from an intermediate domain, notifies the lower domain to push the resource information to the intermediate domain, and updates the current resource pushing capability of the lower domain.
When the intermediate domain monitoring platforms VM3 and VM4 need to acquire resources of the subordinate domains, the subordinate domain resource information is acquired from the management device, and the management device informs the subordinate domain monitoring platforms VM1 and VM2 of pushing the resource information to the intermediate domain monitoring platforms VM3 and VM4.
In another embodiment, the management device pushes the subordinate domain resource information of the middle domain monitoring platforms VM3 and VM4 to the middle domain monitoring platforms VM3 and VM4, namely, pushes the resource information of the subordinate domain monitoring platforms VM1 and VM2 \8230 \ 8230to the middle domain monitoring platforms VM3 and VM4.
In addition, the intermediate domain may also directly request the lower domain to acquire resource information of the lower domain, and the lower domain pushes the resource information to the intermediate domain, which is not described herein again.
After the pushing, each monitoring platform of the intermediate domain also has the resource information of the monitoring platform of the lower domain, each monitoring platform of the intermediate domain also issues the information to the management equipment, and simultaneously reports the initial resource pushing capability of the monitoring platform of the intermediate domain to the management equipment according to the self load condition as with the lower domain. It should be noted that the management device may also dynamically update the current resource pushing capability of the subordinate domain at this time, that is, the management device notifies the subordinate domain to dynamically report the current resource pushing capability.
It is easy to understand that through the above steps, the management device has the resource pushing capability and resource information of each monitoring platform (VM 1, VM2, etc.) of the lower domain; the management device also has the resource pushing capability of each intermediate domain monitoring platform (VM 3, VM 4), the resource information of the corresponding subordinate domain monitoring platform, the resource information of the intermediate domain monitoring platform (VM 3, VM 4), and the like.
At this time, if the upper domain monitoring platforms VM6 and VM7 need to operate the target resource, for example, IPC1, a request needs to be initiated to the management device, and the management device receives the request for operating the target resource, compares the resource pushing capabilities of the middle domain and the lower domain monitoring platforms providing the target resource, and selects the middle domain or the lower domain monitoring platform with the smallest resource pushing capability load to provide the service.
It is easy to understand that, the upper domain monitoring platforms VM6 and VM7 can obtain the target resource IPC1 from the intermediate domain monitoring platform VM3 or directly obtain the target resource IPC1 from the lower domain monitoring platform VM1 when viewing the live state of the IPC1. The management equipment selects the VM with the minimum load according to the resource pushing capacity of each VM, and the superior domain acquires the target resource from the VM, so that load balance is achieved, and performance bottleneck is avoided.
Assuming that the resource push capability load of VM1 is relatively small, the upper domain monitoring platforms VM6 and VM7 view the live condition of IPC1 through VM 1. And if the resource pushing capability load of the VM3 is relatively small, the upper domain monitoring platforms VM6 and VM7 view the live condition of the IPC1 through the VM 3.
Since each monitoring platform runs various monitoring services in real time and the current resource pushing capacity of each monitoring platform changes in real time, the current resource pushing capacity of each monitoring platform needs to be periodically updated to the management device.
In one embodiment, an inter-domain resource pushing method for dynamically selecting an optimal path further includes:
and periodically acquiring the current resource pushing capacity of the intermediate domain and the subordinate domain, and updating the recorded resource pushing capacity.
The management device may periodically and actively report the information to the management device, or the management device may periodically issue an acquisition request to the lower domain or the middle domain monitoring platform, and then the acquisition request is fed back by the lower domain or the middle domain monitoring platform. Or when the superior domain monitoring platform initiates a request for operating target resources to the management equipment, the management equipment issues an acquisition request to the subordinate domain or the middle domain monitoring platform, and then the subordinate domain or the middle domain monitoring platform feeds back the acquisition request to acquire the current resource pushing capacity of each monitoring platform. Or when the management device receives a request for acquiring the subordinate domain resource information of the intermediate domain and pushes the subordinate domain resource information to the intermediate domain, the current resource pushing capacity of the subordinate domain is dynamically updated. This is not limited by the present application.
According to the method and the device, the cross-domain cascade relation of the platforms is weakened, the superior platform can dynamically obtain the pushing path with the minimum pressure according to the actual load condition of each platform, and the performance bottleneck is avoided.
It should be understood that the present application is described in terms of an upper domain, a middle domain, and a lower domain, and in an actual networking, a video surveillance system may include a country-level platform, a provincial-level platform, a city-level platform, a district-level platform, a county-level platform, a township-level platform, and the like. For the provincial platform, the provincial platform is a middle domain, the national platform is an upper-level domain, and other levels are lower-level domains; for the city level platform, the city level platform is a middle domain, the country level platform and the provincial level platform are upper domains, and other levels are lower domains. In practical applications, each platform only needs to satisfy the hierarchical relationship, and the present invention is applicable to all platforms, and is not described in detail below.
In one embodiment, the management device includes an SDN switch and an SDN controller, each monitoring platform is connected to a corresponding SDN switch, and the SDN switch is connected to the SDN controller, and the inter-domain resource pushing method for dynamically selecting an optimal path includes:
the SDN switch receives self resource information and self resource pushing capacity issued by a subordinate domain and reports the self resource information and the self resource pushing capacity to the SDN controller;
the SDN controller receives a request for acquiring resource information of a lower domain of a middle domain, and pushes the resource information of the lower domain to the middle domain;
the SDN switch receives subordinate domain resource information and self resource pushing capacity of the SDN switch, which are issued by the intermediate domain, and reports the subordinate domain resource information and the self resource pushing capacity to the SDN controller;
the SDN controller receives a request of operating a target resource of an upper-level domain, compares resource pushing capacities of a middle domain and a lower-level domain providing the target resource, and selects the middle domain or the lower-level domain with the minimum resource pushing capacity load to provide service.
In this embodiment, the method flow of the present application is implemented by an SDN switch and an SDN controller, where the SDN controller interacts with each level of monitoring platform through the SDN switch, and the SDN receives a request from a middle domain for obtaining resource information of a lower domain of the middle domain, pushes the resource information of the lower domain to the middle domain, and receives a request for operating a target resource of the upper domain through the corresponding SDN switch, which is not described herein again.
It should be understood that, although the steps in the flowchart of fig. 2 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not limited to being performed in the exact order illustrated and, unless explicitly stated herein, may be performed in other orders. Moreover, at least a portion of the steps in fig. 2 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
In an embodiment, the present application further provides an inter-domain resource pushing device for dynamically selecting an optimal path, which is applied to a management device in a video monitoring network, and includes:
the first receiving module is used for receiving self resource information and self resource pushing capacity issued by a lower domain;
the second receiving module is used for receiving the subordinate domain resource information and the self resource pushing capacity thereof issued by the middle domain;
and the selection module is used for receiving a request of operating the target resource of the upper level domain, comparing the resource pushing capacities of the middle domain and the lower level domain which can provide the target resource, and selecting the middle domain or the lower level domain with the minimum resource pushing capacity load to provide service.
For the specific limitation of the inter-domain resource pushing device for dynamically selecting the optimal path, reference may be made to the above limitation of the inter-domain resource pushing device for dynamically selecting the optimal path, and details are not described herein again. All or part of each module in the inter-domain resource pushing device for dynamically selecting the optimal path can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
The above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, but these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (10)
1. An inter-domain resource pushing method for dynamically selecting an optimal path is applied to management equipment in a video monitoring network, and is characterized in that the inter-domain resource pushing method for dynamically selecting the optimal path comprises the following steps:
receiving self resource information and self resource pushing capacity issued by a subordinate domain video management server;
receiving subordinate domain resource information and self resource pushing capacity of the subordinate domain resource information issued by an intermediate domain video management server;
receiving a request of a higher-level domain video management server for operating a target resource, comparing the resource pushing capacities of a middle-level domain video management server and a lower-level domain video management server which can provide the target resource, and selecting the middle-level domain video management server or the lower-level domain video management server with the minimum resource pushing capacity load to provide services.
2. The inter-domain resource pushing method for dynamically selecting an optimal path according to claim 1, wherein the inter-domain resource pushing method for dynamically selecting an optimal path further comprises:
and periodically acquiring the current resource pushing capacity of the intermediate domain video management server and the lower domain video management server, and updating the recorded resource pushing capacity.
3. The inter-domain resource pushing method for dynamically selecting an optimal path according to claim 1, wherein the receiving subordinate domain resource information and self resource pushing capability thereof issued by an inter-domain video management server further comprises:
and receiving a request of the middle domain video management server for acquiring the resource information of the lower domain, informing the lower domain video management server of pushing the resource information to the middle domain video management server, and updating the current resource pushing capacity of the lower domain.
4. The inter-domain resource pushing method for dynamically selecting an optimal path according to claim 1, wherein the inter-domain resource pushing method for dynamically selecting an optimal path further comprises:
and receiving self resource information and self resource pushing capacity issued by the middle domain video management server.
5. The inter-domain resource pushing method for dynamically selecting an optimal path according to claim 1, wherein the resource information comprises a resource name, a shared code, an organization structure, and authentication information.
6. An inter-domain resource pushing device for dynamically selecting an optimal path is applied to management equipment in a video monitoring network, and is characterized in that the inter-domain resource pushing device for dynamically selecting the optimal path comprises:
the first receiving module is used for receiving self resource information and self resource pushing capacity issued by a subordinate domain video management server;
the second receiving module is used for receiving subordinate domain resource information and self resource pushing capacity which are issued by the middle domain video management server;
and the selection module is used for receiving a request of the upper domain video management server for operating the target resource, comparing the resource pushing capacities of the middle domain video management server and the lower domain video management server which can provide the target resource, and selecting the middle domain video management server or the lower domain video management server with the minimum resource pushing capacity load to provide service.
7. The inter-domain resource pushing device for dynamically selecting an optimal path according to claim 6, wherein the inter-domain resource pushing device for dynamically selecting an optimal path further comprises:
and the updating module is used for periodically acquiring the current resource pushing capacity of the middle domain video management server and the lower domain video management server and updating the recorded resource pushing capacity.
8. The inter-domain resource pushing apparatus for dynamically selecting an optimal path according to claim 6, wherein the second receiving module receives subordinate domain resource information and its own resource pushing capability issued by the inter-domain video management server, and further performs the following operations:
and receiving a request of the middle domain video management server for acquiring the resource information of the lower domain, informing the lower domain video management server of pushing the resource information to the middle domain video management server, and updating the current resource pushing capacity of the lower domain.
9. The inter-domain resource pushing device for dynamically selecting an optimal path according to claim 6, wherein the second receiving module further performs the following operations:
and receiving self resource information and self resource pushing capacity issued by the middle domain video management server.
10. The inter-domain resource pushing apparatus for dynamically selecting an optimal path according to claim 6, wherein the resource information includes a resource name, a shared code, an organization structure, and authentication information.
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