CN115277257A - High-concurrency high-flow video safety isolation transmission method and system - Google Patents
High-concurrency high-flow video safety isolation transmission method and system Download PDFInfo
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- CN115277257A CN115277257A CN202211178946.8A CN202211178946A CN115277257A CN 115277257 A CN115277257 A CN 115277257A CN 202211178946 A CN202211178946 A CN 202211178946A CN 115277257 A CN115277257 A CN 115277257A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/02—Network architectures or network communication protocols for network security for separating internal from external traffic, e.g. firewalls
- H04L63/0209—Architectural arrangements, e.g. perimeter networks or demilitarized zones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/472—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content
- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/61—Network physical structure; Signal processing
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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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- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a high-concurrency high-flow video safety isolation transmission method and a high-concurrency high-flow video safety isolation transmission system.A video on demand request signaling is sent to an internal network by an external network through a video signaling detection module, a video load safety isolation transmission private network module and a video load safety isolation transmission public network module in sequence, and video data is sent to the external network by the internal network through the video load safety isolation transmission public network module and the video load safety isolation transmission private network module in sequence; the video load security isolation transmission private network module is in communication connection with the load detection module, the load detection module is in communication connection with the load statistical analysis module, the load statistical analysis module is in communication connection with the load forwarding control module, and the load forwarding control module is in communication connection with the video signaling detection module. The invention can effectively avoid the congestion of the video request and the transmission of the video data by carrying out the distribution management on the video request, thereby avoiding the congestion of a transmission channel and ensuring the reliable transmission of the video data.
Description
Technical Field
The invention relates to the technical field of video transmission safety. In particular to a high-concurrency large-flow video safety isolation transmission method and a system.
Background
With the popularization of video monitoring services, a large amount of video data is distributed in each corner of a city, and the demand for centralized monitoring of the video data arises. How to guarantee network security is a challenge faced by video data centralized monitoring, especially in some private networks, the requirement on network security is especially harsh, and at this time, ordinary network security transmission equipment cannot meet the requirement on network security. Meanwhile, as videos have the characteristics of large bandwidth and high concurrency, how to ensure reliable data transmission is another challenge for video data centralized monitoring.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to provide a high-concurrency large-flow video security isolation transmission method and system, which can effectively avoid the congestion of video requests and video data transmission by performing distribution management on video requests, thereby avoiding the congestion of a transmission channel and ensuring the reliable transmission of video data.
In order to solve the technical problems, the invention provides the following technical scheme:
a high concurrent large-flow video safety isolation transmission method is characterized in that an internal network sends a video on demand request signaling to an external network through a video signaling monitoring module and safety isolation equipment, the video on demand request signaling received by the external network sends corresponding video data to the internal network through the safety isolation equipment, and in the process:
1) After receiving the video-on-demand request signaling, the video signaling detection module analyzes the video-on-demand request signaling to acquire video-on-demand information and sends the corresponding information to the load forwarding control module;
2) The load detection module monitors and collects the load information of a video load security isolation transmission private network module in the security isolation device, and then sends the collected load information to the load statistical analysis module;
3) The load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module;
4) And the load forwarding control module manages and distributes the video request according to the analysis result and the received video-on-demand information.
According to the high-concurrency large-flow video safety isolation transmission method, when a plurality of safety isolation devices are arranged between the internal network and the external network, in the step 4), the load forwarding control module distributes the video request to the proper video load safety isolation transmission private network module according to the analysis result and the received video on demand information.
In the video security isolation transmission method with high concurrency and large flow, in the step 2), the video load security isolation transmission private network module reports load information to the load detection module at regular time, wherein the load information comprises the utilization rate x% of a CPU, the utilization rate y% of a network port bandwidth and the concurrency connection number a.
According to the high-concurrency high-flow video security isolation transmission method, if a certain video load security isolation transmission private network module does not report load information in the reporting period, the load detection module sets the CPU utilization rate of the video load security isolation transmission private network module to be x% =100%.
In the video safety isolation transmission method with high concurrency and large flow, in the step 3), the load statistical analysis module calculates the residual load processing capacity of each video load safety isolation transmission private network module according to the following algorithm
：
Wherein the content of the first and second substances,
the main frequency of a CPU of equipment where a video load security isolation transmission private network module is located;
In the high-concurrency large-flow video safety isolation transmission method, in the step 4), the load forwarding control module obtains an analysis result according to the load statistical analysis module and according to the analysis result
The video on-demand requests are managed and distributed in the order of magnitude from large to small.
According to the high-concurrency large-flow video security isolation transmission method, when the video-on-demand request signaling received by the external network sends corresponding video data to the external network through the security isolation device, the video security isolation transmission public network module in the security isolation device is provided with the flow filtering module, and the flow filtering module is used for preventing abnormal video flow from passing through the video security isolation transmission public network module.
The system for transmitting the video by using the high-concurrency large-flow video safety isolation transmission method comprises the following steps:
the video signaling detection module is used for analyzing and forwarding a video on demand request signaling sent by an external network;
the safety isolation equipment is used for carrying out safety isolation on the outer net and the inner net; a video load security isolation transmission private network module and a video load security isolation transmission public network module are arranged in the security isolation device;
the load detection module is used for collecting the load information of the video load security isolation transmission private network module in the security isolation equipment and then sending the collected load information to the load statistical analysis module;
the load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module;
the load forwarding control module is used for managing and distributing the video request according to the analysis result and the received video-on-demand information;
the outer network sends a video on demand request signaling to the inner network sequentially through the video signaling detection module, the video load security isolation transmission private network module and the video load security isolation transmission public network module, and the inner network sends video data to the outer network sequentially through the video load security isolation transmission public network module and the video load security isolation transmission private network module; the video load security isolation transmission private network module is in communication connection with the load detection module, the load detection module is in communication connection with the load statistical analysis module, the load statistical analysis module is in communication connection with the load forwarding control module, and the load forwarding control module is in communication connection with the video signaling detection module.
In the system, the video load security isolation transmission public network module is provided with the flow filtering module, and the flow filtering module is used for preventing abnormal video flow from passing through the video security isolation transmission public network module.
The technical scheme of the invention achieves the following beneficial technical effects:
1. the invention performs cluster deployment on different isolated transmission devices, and solves the problem of high-flow and high-concurrency video flow transmission.
2. In the invention, the factors such as the CPU utilization rate, the CPU main frequency, the bandwidth utilization rate, the maximum bandwidth and the like of different isolated transmission devices in the cluster are simultaneously considered, and the residual processing capacities of the different isolated transmission devices in the cluster are accurately calculated, so that the transmission capacity of the system is maximized, the transmission reliability can be ensured, the maximum utilization of the capacity of each device can be ensured, and the utilization efficiency of the system is improved.
3. According to the invention, through the load data reported by different isolated transmission devices in the cluster at regular time, if a certain device does not report the load data in a certain period, the CPU utilization rate is considered to be 100%, so that the residual load is zero, the isolated transmission devices in a non-working state can be ensured not to process video flow, and the reliable transmission of the data is ensured to the greatest extent.
4. In the invention, the video data is transmitted through the video load security isolation transmission public network module and the video load security isolation transmission private network module, and a special isolation card is adopted between the video data and the video load security isolation transmission public network module for data transmission, thereby realizing the physical isolation of data transmission and ensuring the network security of the private network.
5. In the invention, when video data is transmitted through the video load security isolation transmission public network module, a flow filtering strategy is configured on the module, so that illegal flow can be filtered out, and the network is ensured not to be attacked by abnormal flow.
Drawings
Fig. 1 is a schematic diagram of the system operation of the present invention for video transmission by using a high concurrent and large-flow video security isolation transmission method.
Detailed Description
As shown in fig. 1, the system for video transmission by using a high-concurrency high-flow video security isolation transmission method includes a video signaling detection module, a security isolation device, a load detection module, a load statistical analysis module, and a load forwarding control module; the video signaling detection module is used for analyzing and forwarding a video on demand request signaling sent by an external network; the safety isolation equipment is used for carrying out safety isolation on the outer net and the inner net; a video load security isolation transmission private network module and a video load security isolation transmission public network module are arranged in the security isolation device; the load detection module is used for collecting the load information of the video load security isolation transmission private network module in the security isolation equipment and then sending the collected load information to the load statistical analysis module; the load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module; the load forwarding control module is used for managing and distributing the video request according to the analysis result and the received video-on-demand information; the external network sends a video on demand request signaling to the internal network sequentially through the video signaling detection module, the video load security isolation transmission private network module and the video load security isolation transmission public network module, and the internal network sends video data to the external network sequentially through the video load security isolation transmission public network module and the video load security isolation transmission private network module; the video load security isolation transmission private network module is in communication connection with the load detection module, the load detection module is in communication connection with the load statistical analysis module, the load statistical analysis module is in communication connection with the load forwarding control module, and the load forwarding control module is in communication connection with the video signaling detection module. In this embodiment, a flow filtering module is configured on the video load security isolation transmission public network module, and the flow filtering module is configured to prevent abnormal video flow from passing through the video security isolation transmission public network module, so that the number of security isolation devices for sending video data to the external network by a plurality of video devices in the internal network is the same as that of the video devices, or a video load security isolation transmission private network module and a video load security isolation transmission public network module, which are the same as that of the video devices, are provided in a single security device.
In the process that the intranet sends a video on demand request to the extranet and the extranet sends corresponding video data to the intranet, the specific working process is as follows:
1) The intranet sends a video on demand request signaling to a video signaling detection module;
2) After receiving the video-on-demand request signaling, the video signaling detection module analyzes the video-on-demand request signaling to obtain video-on-demand information and sends the corresponding information to the load forwarding control module, and meanwhile, sends the video-on-demand request signaling to a video load security isolation transmission private network module in security isolation equipment;
3) The video load security isolation transmission private network module in the security isolation device sends the received video on demand request signaling to the video load security isolation transmission public network module in the same security isolation device;
4) A video load security isolation transmission public network module in the security isolation equipment sends the received video on demand request signaling to an external network;
5) After receiving the video-on-demand request signaling, the outer network sends the video-on-demand request signaling to the safety isolation equipment and sends the video-on-demand request signaling to the inner network through the video load safety isolation transmission public network module and the video load safety isolation transmission private network module;
6) The load detection module monitors and collects the load information of a video load security isolation transmission private network module in the security isolation device, and then sends the collected load information to the load statistical analysis module;
7) The load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module;
8) And the load forwarding control module manages and distributes the video request according to the analysis result and the received video-on-demand information.
When a plurality of safety isolation devices are arranged between the internal network and the external network, in step 8), the load forwarding control module distributes the video request to a proper video load safety isolation transmission private network module according to the analysis result and the received video on demand information.
In step 6), the video load security isolation transmission private network module reports load information to the load detection module at regular time, wherein the load information comprises the utilization rate x% of the CPU, the utilization rate y% of the network port bandwidth and the number a of concurrent connections. If a certain video load security isolation transmission private network module does not report load information in a reporting period, the load detection module sets the CPU utilization rate of the video load security isolation transmission private network module to be x% =100%.
In step 7), the load statistical analysis module calculates the residual load processing capacity of each video load security isolation transmission private network module according to the following algorithm
：
Wherein the content of the first and second substances,
the main frequency of a CPU of equipment where a video load security isolation transmission private network module is located;
In step 8), the load forwarding control module analyzes the result obtained by the load statistical analysis module according to the result
The video on-demand requests are managed and distributed in the order of magnitude from large to small.
Residual load handling capability of transport private network modules by securely isolating individual video loads
Is calculated, and
the proper video load security isolation transmission private network module is selected in the order of magnitude, so that the condition that congestion occurs at a certain video load security isolation transmission private network module in the video data transmission process is avoided, and simultaneously, the video on demand information in the video on demand request signaling and the residual load processing capacity of each video load security isolation transmission private network module are utilized
The suitable video load security isolation transmission private network module is selected according to the size of the video load security isolation transmission private network module, the distribution optimization of the video load security isolation transmission private network module can be realized, the utilization rate of the transmission capacity of the video load security isolation transmission private network module can be maximized, meanwhile, the congestion phenomenon caused by the fact that a certain video load security isolation transmission private network module is overloaded can be effectively avoided, and the high-concurrency high-flow video security and reliable transmission is realized.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (9)
1. A high-concurrency large-flow video safety isolation transmission method is characterized in that an internal network sends a video on demand request signaling to an external network through a video signaling monitoring module and safety isolation equipment, the video on demand request signaling received by the external network sends corresponding video data to the internal network through the safety isolation equipment, and in the process:
1) The video signaling detection module receives the video on demand request signaling, analyzes the video on demand request signaling to obtain video on demand information and sends the corresponding information to the load forwarding control module;
2) The load detection module monitors and collects the load information of a video load security isolation transmission private network module in the security isolation device, and then sends the collected load information to the load statistical analysis module;
3) The load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module;
4) And the load forwarding control module manages and distributes the video request according to the analysis result and the received video-on-demand information.
2. The high-concurrency high-flow video security isolation transmission method according to claim 1, wherein when a plurality of security isolation devices are arranged between the internal network and the external network, in step 4), the load forwarding control module distributes the video request to a proper video load security isolation transmission private network module according to the analysis result and the received video on demand information.
3. The high-concurrency high-traffic video security isolation transmission method according to claim 2, wherein in step 2), the video load security isolation transmission private network module reports load information to the load detection module at regular time, and the load information includes x% of CPU utilization, y% of network port bandwidth utilization, and a concurrent connection number a.
4. The high concurrent high traffic video security isolation transmission method according to claim 3, wherein if a certain video load security isolation transmission private network module does not report load information in the reporting period, the load detection module sets the CPU utilization of the video load security isolation transmission private network module to x% =100%.
5. The high concurrent high traffic video secure isolation transmission method according to claim 4, wherein in step 3), the load statistical analysis module calculates the remaining load handling capacity of each video load secure isolation transmission private network module according to the following algorithm
：
Wherein the content of the first and second substances,
the master frequency of a CPU of equipment where a video load security isolation transmission private network module is located;
6. The high concurrent high traffic video security isolation transmission method according to claim 5, wherein in step 4), the load forwarding control module performs the analysis according to the analysis result obtained by the load statistical analysis module
The video on-demand requests are managed and distributed in the order of magnitude from large to small.
7. The high-concurrency high-traffic video security isolation transmission method according to any one of claims 1 to 6, wherein when a video-on-demand request signaling received by the external network sends corresponding video data to the external network through the security isolation device, a traffic filtering module is configured on a video security isolation transmission public network module in the security isolation device, and the traffic filtering module is used for preventing abnormal video traffic from passing through the video security isolation transmission public network module.
8. The system for transmitting the video by using the high-concurrency high-flow video safety isolation transmission method according to any one of claims 1 to 7, is characterized by comprising the following steps of:
the video signaling detection module is used for analyzing and forwarding a video on demand request signaling sent by an external network;
the safety isolation equipment is used for carrying out safety isolation on the outer net and the inner net; a video load security isolation transmission private network module and a video load security isolation transmission public network module are arranged in the security isolation device;
the load detection module is used for collecting the load information of the video load security isolation transmission private network module in the security isolation equipment and then sending the collected load information to the load statistical analysis module;
the load statistical analysis module is used for calculating and analyzing the load information after receiving the load information collected by the load detection module to obtain an analysis result of the residual load processing capacity of the video load security isolation transmission private network module and sending the analysis result to the load forwarding control module;
the load forwarding control module is used for managing and distributing the video request according to the analysis result and the received video-on-demand information;
the outer network sends a video on demand request signaling to the inner network sequentially through the video signaling detection module, the video load security isolation transmission private network module and the video load security isolation transmission public network module, and the inner network sends video data to the outer network sequentially through the video load security isolation transmission public network module and the video load security isolation transmission private network module; the video load security isolation transmission private network module is in communication connection with the load detection module, the load detection module is in communication connection with the load statistical analysis module, the load statistical analysis module is in communication connection with the load forwarding control module, and the load forwarding control module is in communication connection with the video signaling detection module.
9. The system of claim 8, wherein the video load security isolation transmission public network module is configured with a traffic filtering module, and the traffic filtering module is configured to prevent abnormal video traffic from passing through the video security isolation transmission public network module.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144121A2 (en) * | 2011-05-30 | 2011-11-24 | 华为技术有限公司 | Method and device for load control in wireless communication network |
| CN109525572A (en) * | 2018-11-08 | 2019-03-26 | 郑州云海信息技术有限公司 | A kind of internet site safety monitoring guard system and method |
| CN115208889A (en) * | 2022-05-12 | 2022-10-18 | 国家信息中心 | High-concurrency high-flow video safety isolation transmission method and system |
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- 2022-09-27 CN CN202211178946.8A patent/CN115277257A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144121A2 (en) * | 2011-05-30 | 2011-11-24 | 华为技术有限公司 | Method and device for load control in wireless communication network |
| CN109525572A (en) * | 2018-11-08 | 2019-03-26 | 郑州云海信息技术有限公司 | A kind of internet site safety monitoring guard system and method |
| CN115208889A (en) * | 2022-05-12 | 2022-10-18 | 国家信息中心 | High-concurrency high-flow video safety isolation transmission method and system |
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