CN108965226B - Data acquisition method and device based on video network - Google Patents
Data acquisition method and device based on video network Download PDFInfo
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- CN108965226B CN108965226B CN201711396219.8A CN201711396219A CN108965226B CN 108965226 B CN108965226 B CN 108965226B CN 201711396219 A CN201711396219 A CN 201711396219A CN 108965226 B CN108965226 B CN 108965226B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The embodiment of the invention provides a data acquisition method and device based on a video network. Under the condition that a subordinate video networking service platform acquires certain data from a video networking data server in advance and stores the certain data in the subordinate video networking service platform, if a superior video networking service platform also needs to acquire the data, the superior video networking service platform does not need to acquire the data from the video networking data server and can acquire the data from the subordinate video networking service platform, so that the data is prevented from being directly acquired from the video networking data server repeatedly for many times, and the load of the video networking data server is reduced.
Description
Technical Field
The invention relates to the technical field of video networking, in particular to a data acquisition method and device based on video networking.
Background
With the rapid development of the technology, an enterprise is often provided with service platforms for providing services to the outside in various places, and is also provided with a data server, the data server is used for storing data, each service platform is in communication connection with the data server, when the service platforms provide services to the outside, the data are often required to be acquired from the data server, and then the services are provided to the outside according to the acquired data. When the service platform needs to obtain a certain data from the data server, the server platform may send a data obtaining request to the data server, the data server returns the data to the service platform according to the data obtaining request, and the service platform receives the data returned by the data server.
However, the inventor found that when a plurality of service platforms all need to acquire the data from the data server, the data server needs to send a data acquisition request to each service platform and send the data to each service platform, which results in a high load of the data server.
Disclosure of Invention
In order to reduce the load of a data server, the embodiment of the invention discloses a data acquisition method and device based on a video network.
In a first aspect, an embodiment of the present invention shows a data acquisition method based on a video network, where the video network includes an upper video network service platform and a lower video network service platform, and the upper video network service platform and the lower video network service platform are connected through a video network protocol in a communication manner, the method includes:
the superior video networking service platform acquires a cascading request, wherein the cascading request at least carries a platform identifier of the inferior video networking service platform;
the superior video networking service platform sends the cascade request to the subordinate video networking service platform corresponding to the platform identification;
the higher-level video networking service platform receives a cascade response sent by the lower-level video networking service platform according to the cascade request, the cascade response at least carries a data identifier of data with acquisition permission of the lower-level video networking service platform, the data corresponding to the data identifier at least comprises data locally stored by the lower-level video networking service platform, and the locally stored data at least comprises data acquired by the lower-level video networking service platform from a video networking data server in advance;
the superior video networking service platform sends a data acquisition request to the subordinate video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
and the superior video networking service platform receives the data corresponding to the at least one data identifier sent by the subordinate video networking service platform according to the acquisition request.
In an optional implementation, the method further includes:
and the superior video networking service platform stores the data identification carried by the cascade response.
In an optional implementation manner, the number of data identifiers carried by the cascade response is multiple;
the method further comprises the following steps:
displaying a plurality of data identifications carried by the cascade response;
the data acquisition request also carries at least one selected data identifier in the displayed plurality of data identifiers.
In a second aspect, an embodiment of the present invention shows a data acquisition method based on a video network, where the video network includes an upper video network service platform and a lower video network service platform, and the upper video network service platform and the lower video network service platform are connected through a video network protocol in a communication manner, the method includes:
the lower-level video networking service platform receives a cascading request sent by the upper-level video networking service platform;
the lower video networking service platform acquires a data identifier of data with acquisition authority of the lower video networking service platform, the data corresponding to the data identifier at least comprises data locally stored by the lower video networking service platform, and the locally stored data at least comprises data acquired by the lower video networking service platform from a video networking data server in advance;
the lower-level video networking service platform generates a cascade response according to the data identification;
the lower-level video networking service platform sends the cascade response to the upper-level video networking service platform;
the lower-level video networking service platform receives a data acquisition request sent by the upper-level video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
the lower video network service platform acquires data corresponding to the at least one data identifier;
and the lower-level video networking service platform sends the data corresponding to the at least one data identifier to the upper-level video networking service platform.
In a third aspect, an embodiment of the present invention shows a data acquisition device based on a video network, where the video network includes an upper video network service platform and a lower video network service platform, and the upper video network service platform and the lower video network service platform are connected through a video network protocol in a communication manner, the device includes:
the first obtaining module is used for obtaining a cascading request, wherein the cascading request at least carries a platform identifier of the lower-level video networking service platform;
the first sending module is used for sending the cascade request to the lower-level video networking service platform corresponding to the platform identifier;
a first receiving module, configured to receive a cascade response sent by the lower video networking service platform according to the cascade request, where the cascade response at least carries a data identifier of data that the lower video networking service platform has an acquisition right, where the data corresponding to the data identifier at least includes data locally stored by the lower video networking service platform, and the locally stored data at least includes data that the lower video networking service platform has acquired from a video networking data server in advance;
the second sending module is used for sending a data acquisition request to the lower-level video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
and the second receiving module is used for receiving the data corresponding to the at least one data identifier sent by the lower-level video networking service platform according to the acquisition request.
In an optional implementation, the apparatus further comprises:
and the storage module is used for storing the data identifier carried by the cascade response.
In an optional implementation manner, the number of data identifiers carried by the cascade response is multiple;
the device further comprises:
the display module is used for displaying a plurality of data identifications carried by the cascade response;
the data acquisition request also carries at least one selected data identifier in the displayed plurality of data identifiers.
In a fourth aspect, an embodiment of the present invention shows a data acquisition device based on a video network, where the video network includes an upper video network service platform and a lower video network service platform, and the upper video network service platform and the lower video network service platform are connected through a video network protocol in a communication manner, the device includes:
the third receiving module is used for receiving the cascade request sent by the superior video networking service platform;
the second acquisition module is used for acquiring a data identifier of data of which the lower video networking service platform has an acquisition authority, wherein the data corresponding to the data identifier at least comprises data locally stored by the lower video networking service platform, and the locally stored data at least comprises data which is acquired by the lower video networking service platform from a video networking data server in advance;
the generating module is used for generating a cascade response according to the data identification;
the third sending module is used for sending the cascade response to the superior video networking service platform;
the fourth receiving module is used for receiving a data acquisition request sent by the superior video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
a third obtaining module, configured to obtain data corresponding to the at least one data identifier;
and the fourth sending module is used for sending the data corresponding to the at least one data identifier to the superior video networking service platform.
In a fifth aspect, the embodiment of the present invention shows an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the steps of the data acquisition method based on the internet of view according to the first aspect.
In a sixth aspect, the embodiment of the present invention shows an electronic device, which includes a memory, a processor, and a computer program stored in the memory and running on the processor, and when the processor executes the program, the steps of the data acquisition method based on the video network according to the second aspect are implemented.
In a seventh aspect, the present invention shows a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the data acquisition method based on the internet of view according to the first aspect.
In an eighth aspect, the embodiment of the present invention shows a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the data acquisition method based on the video network according to the second aspect.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, under the condition that the lower-level video networking service platform acquires certain data from the video networking data server in advance and stores the certain data in the lower-level video networking service platform, if the upper-level video networking service platform also needs to acquire the data, the upper-level video networking service platform can acquire the data from the lower-level video networking service platform without acquiring the data from the video networking data server, so that the data is prevented from being directly acquired from the video networking data server repeatedly for many times, and the load of the video networking data server is reduced.
Drawings
FIG. 1 is a schematic networking diagram of a video network of the present invention;
FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present invention;
fig. 3 is a schematic diagram of a hardware structure of an access switch of the present invention;
fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present invention;
FIG. 5 is a block diagram of an embodiment of a data acquisition system based on a video network according to the present invention;
FIG. 6 is a flowchart illustrating the steps of an embodiment of a method for data acquisition over a video network;
FIG. 7 is a block diagram of an embodiment of a data acquisition device based on a video network according to the present invention;
fig. 8 is a block diagram of an embodiment of a data acquisition device based on a video network according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.
The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.
To better understand the embodiments of the present invention, the following description refers to the internet of view:
some of the technologies applied in the video networking are as follows:
network Technology (Network Technology)
Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.
Switching Technology (Switching Technology)
The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.
Server Technology (Server Technology)
The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.
Storage Technology (Storage Technology)
The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.
Network Security Technology (Network Security Technology)
The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.
Service Innovation Technology (Service Innovation Technology)
The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.
Networking of the video network is as follows:
the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.
As shown in fig. 1, the video network is divided into an access network and a metropolitan network.
The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.
The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.
Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.
The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.
The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.
Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.
The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.
Video networking device classification
1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.
1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).
The specific hardware structure of each access network device is as follows:
a node server:
as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;
the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.
The access switch:
as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;
wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.
The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:
if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;
if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.
The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.
The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.
Ethernet protocol conversion gateway：
As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.
Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;
the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.
The other modules in the ethernet protocol gateway function similarly to the access switch.
A terminal:
the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.
1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.
2. Video networking packet definition
2.1 Access network packet definition
The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.
As shown in the following table, the data packet of the access network mainly includes the following parts:
| DA | SA | Reserved | Payload | CRC |
wherein:
the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;
the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);
the reserved byte consists of 2 bytes;
the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;
the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.
2.2 metropolitan area network packet definition
The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.
In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.
As shown in the following table, the data packet of the metro network mainly includes the following parts:
| DA | SA | Reserved | label (R) | Payload | CRC |
Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.
Based on the characteristics of the video network, one of the core concepts of the embodiments of the present invention is provided, and the protocol of the video network is followed, when the upper-level video network service platform needs to acquire data, the upper-level video network service platform does not need to acquire the data from the video network data server, but can acquire the data from the lower-level video network service platform cascaded with the upper-level video network service platform, thereby reducing the load of the video network data server.
Referring to fig. 5, a block diagram of a data acquisition system based on video networking according to the present invention is shown, the system includes an upper video networking service platform 01, a lower video networking service platform 02 and a video networking data server 03, both the upper video networking service platform 01 and the lower video networking service platform 02 are used for providing services to the outside, and the video networking data server 03 is used for storing video networking data.
The subordinate video networking service platform 02 is in communication connection with the video networking data server 03 through a video networking protocol, so that the subordinate video networking service platform 02 can acquire video networking data from the video networking data server 03.
Superior video networking service platform 01 can also be connected with video networking data server 03 through video networking protocol communication, and thus superior video networking service platform 01 can also view networking data from video networking data server 03.
The superior video networking service platform 01 can also obtain data stored in the subordinate video networking service platform 02 from the subordinate video networking service platform 02, when the superior video networking service platform 01 needs to obtain the data stored in the subordinate video networking service platform 02 from the subordinate video networking service platform 02, the superior video networking service platform 01 can establish communication connection based on a video networking protocol with the subordinate video networking service platform 02, and then obtain the data from the subordinate video networking service platform 02.
Referring to fig. 6, a flowchart illustrating steps of an embodiment of a data acquisition method based on a video network according to the present invention is shown, where the method may be applied to the system shown in fig. 5, and specifically may include the following steps:
in step S101, the superior video networking service platform obtains a cascade request, where the cascade request at least carries a platform identifier of the inferior video networking service platform;
the upper and lower level relation of the video networking service platform is preset, one or more lower level video networking service platforms can be set for one video networking service platform, and correspondingly, one or more upper level video networking service platforms can also be set for one video networking service platform. The upper-level video networking platform can acquire data from the lower-level video networking platform set for the upper-level video networking platform, but the lower-level video networking platform cannot acquire data from the upper-level video networking platform set for the lower-level video networking platform.
In the embodiment of the present invention, it is assumed that the lower video networking service platform obtains a certain data from the video networking data server in advance, and stores the data in the lower video networking service platform, and if the upper video networking service platform needs to obtain the data later, in order to reduce the load of the video networking data server, the upper video networking service platform may establish a communication connection based on a video networking protocol with the lower video networking service platform, for example, generate a platform identifier cascade request carrying at least the lower video networking service platform, and then execute step S102.
In another embodiment of the present invention, for any one of the video networking service platforms, if a lower video networking service platform is provided for the video networking service platform in advance, the platform identifiers of all the lower video networking service platforms provided for the video networking service platform may be stored in the lower video networking service platform identifier list in the video networking service platform. The same is true for each of the other video networking service platforms.
The platform identifier may be an IP (Internet Protocol) address or a MAC (Media Access Control) address of the video networking service platform, and the like, which is not limited in this embodiment of the present invention.
In an embodiment of the present invention, when a plurality of lower video networking service platforms are set in advance for an upper video networking service platform, a user may select a lower video networking service platform that needs to be cascaded from the upper video networking service platform, for example, the upper video networking service platform displays each platform identifier in a lower video networking service platform identifier list stored in the upper video networking service platform, the user may select a platform identifier of the lower video networking service platform that needs to be cascaded from the plurality of platform identifiers, the upper video networking service platform acquires the platform identifier selected by the user from the plurality of displayed platform identifiers, then generates a cascading request carrying at least the platform identifier selected by the user, and then executes step S102.
Or, in another embodiment of the present invention, the user may directly input a platform identifier of a lower video networking service platform that needs to be cascaded in a higher video networking service platform, the higher video networking service platform obtains the platform identifier input by the user, and determines whether the platform identifier input by the user is located in a lower video networking service platform identifier list stored in the higher video networking service platform, if the platform identifier input by the user is located in the lower video networking service platform identifier list stored in the higher video networking service platform, it is determined that the higher video networking service platform may cascade the lower video networking service platform corresponding to the platform identifier input by the user, so as to generate a cascading request carrying at least the platform identifier input by the user, and then step S102 is executed.
However, if the platform identifier input by the user is not located in the lower video networking service platform identifier list stored in the upper video networking service platform, it is determined that the upper video networking service platform cannot cascade the lower video networking service platform corresponding to the platform identifier input by the user, that is, the upper video networking service platform does not have the cascade right for the lower video networking service platform corresponding to the platform identifier input by the user, so that prompt information for prompting the lower video networking service platform corresponding to the platform identifier input by the user that cannot cascade is displayed, and the user is prompted to re-input the platform identifiers of other lower video networking service platforms.
In step S102, the superior video networking service platform sends the cascade request to the subordinate video networking service platform corresponding to the platform identifier;
in step S103, the lower video networking service platform receives the cascade request sent by the upper video networking service platform;
in another embodiment of the present invention, for any one of the video networking service platforms, if a superior video networking service platform is provided for the video networking service platform in advance, the platform identifiers of all superior video networking service platforms provided for the video networking service platform may be stored in the superior video networking service platform identifier list in the video networking service platform. The same is true for each of the other video networking service platforms.
Therefore, in order to avoid mistakenly cascading the lower-level video networking service platform to the video networking service platform which does not have the cascading authority, the cascading request generated by the upper-level video networking service platform needs to carry the platform identification of the upper-level video networking service platform in addition to the platform identification of the lower-level video networking service platform.
Thus, after the lower-level video networking service platform receives the cascade request, the platform identifier of the upper-level video networking service platform in the cascade request needs to be extracted, whether the platform identifier is located in the upper-level video networking service platform identifier list stored in the lower-level video networking service platform is judged, if the platform identifier is located in the upper-level video networking service platform identifier list stored in the lower-level video networking service platform, it is determined that the upper-level video networking service platform corresponding to the platform identifier has cascade permission for the lower-level video networking service platform, and then step S104 is executed.
However, if the platform identifier is not located in the higher-level video networking service platform identifier list stored in the lower-level video networking service platform, it is determined that the higher-level video networking service platform corresponding to the platform identifier does not have the cascade right to the lower-level video networking service platform, and the process is ended.
In step S104, the lower video networking service platform acquires a data identifier of data of which the lower video networking service platform has an acquisition right;
the data that the subordinate video networking service platform possesses the acquisition authority include: the data stored locally in the lower video networking service platform and the data stored in other lower video networking service platforms cascaded with the lower video networking service platform, and the like, wherein the data stored locally at least comprises the data acquired by the lower video networking service platform from a video networking data server in advance;
in the embodiment of the invention, the lower video networking service platform can send the data stored locally to the upper video networking service platform, and the lower video networking service platform can also acquire the data stored in other lower video networking service platforms cascaded with the lower video networking service platform and send the data to the upper video networking service platform.
In step S105, the lower video networking service platform generates a cascade response, where the cascade response at least carries the data identifier;
in step S106, the lower video networking service platform sends the cascade response to the upper video networking service platform;
in step S107, the upper video networking service platform receives the cascade response;
the superior video networking service platform extracts the data identifier from the cascade response, so that the superior video networking service platform can know which data the inferior video networking service platform has the acquisition authority. The upper video network service platform may execute step S108 to obtain the data to be obtained from the lower video network service platform.
In step S108, the superior video networking service platform sends a data acquisition request to the subordinate video networking service platform, where the data acquisition request carries at least one data identifier of the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
in the embodiment of the present invention, the cascade response carries data identifiers of one or more data stored in the lower video networking service platform, and when the cascade response carries a plurality of data identifiers, sometimes, it is not necessary to acquire data corresponding to each data identifier, so that the upper video networking service platform may display the plurality of data identifiers for the user to select, the user may select the data identifier of the data to be acquired from the plurality of displayed data identifiers, and the upper video networking service platform acquires the data identifier selected by the user to generate the data acquisition request carrying the data identifier selected by the user.
Further, the superior video networking service platform may further store the data identifier carried by the cascade response. Therefore, when a user using the higher-level video networking service platform needs to check which data the lower-level video networking service platform has the acquisition right, the higher-level video networking service platform does not need to acquire the data identifier of the data of which the lower-level video networking service platform has the acquisition right from the lower-level video networking service platform again, and the locally stored data identifier is directly acquired and displayed, so that network resources between the higher-level video networking service platform and the lower-level video networking service platform can be saved.
Furthermore, in the data identifiers carried by the cascade response, some data identifiers correspond to data stored in the lower video network server platform, some data identifiers correspond to data stored in other lower video network service platforms cascaded with the lower video network service platform, in order to enable the user to know in which video network service platform the data corresponding to each data identification is stored, in yet another embodiment of the invention, besides carrying the data identifier, the cascade response may also carry the platform identifier of the lower-level video networking platform where the data corresponding to each data identifier is located, and thus, when the data identification carried by the cascade response is displayed, the platform identification of the lower-level video networking platform where the data corresponding to each data identification is located can be displayed, therefore, the user can know in which video network service platform the data corresponding to each data identification is stored respectively.
In step S109, the lower video networking service platform receives the data acquisition request sent by the upper video networking service platform;
in step S110, the lower video networking service platform obtains data corresponding to the at least one data identifier;
in the embodiment of the present invention, if the lower video networking service platform locally stores the data corresponding to the data identifier, the lower video networking service platform may directly obtain the locally stored data corresponding to the data identifier.
If the lower-level video networking service platform does not locally store the data corresponding to the data identifier, and other lower-level video networking service platforms cascaded with the lower-level video networking service platform store the data corresponding to the data identifier, the lower-level video networking service platform needs to acquire the data corresponding to the data identifier from the other lower-level video networking service platforms cascaded with the lower-level video networking service platform.
In step S111, the lower video networking service platform sends data corresponding to the at least one data identifier to the upper video networking service platform;
in step S112, the upper video networking service platform receives data corresponding to the at least one data identifier sent by the lower video networking service platform.
In the embodiment of the invention, under the condition that the lower-level video networking service platform acquires certain data from the video networking data server in advance and stores the certain data in the lower-level video networking service platform, if the upper-level video networking service platform also needs to acquire the data, the upper-level video networking service platform can acquire the data from the lower-level video networking service platform without acquiring the data from the video networking data server, so that the data is prevented from being directly acquired from the video networking data server repeatedly for many times, and the load of the video networking data server is reduced.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present invention is not limited by the illustrated order of acts, as some steps may occur in other orders or concurrently in accordance with the embodiments of the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are presently preferred and that no particular act is required to implement the invention.
Referring to fig. 7, a block diagram of an embodiment of a data acquisition device based on a video network according to the present invention is shown, where the video network includes an upper video network service platform and a lower video network service platform, the upper video network service platform and the lower video network service platform are connected in communication via a video network protocol, and the device may specifically include the following modules:
a first obtaining module 12, configured to obtain a cascade request, where the cascade request at least carries a platform identifier of the lower video networking service platform;
a first sending module 13, configured to send the cascade request to the lower video networking service platform corresponding to the platform identifier;
a first receiving module 14, configured to receive a cascade response sent by the lower video networking service platform according to the cascade request, where the cascade response at least carries a data identifier of data that the lower video networking service platform has an acquisition right, where the data corresponding to the data identifier at least includes data locally stored by the lower video networking service platform, and the locally stored data at least includes data that the lower video networking service platform has acquired from a video networking data server in advance;
a second sending module 15, configured to send a data acquisition request to the lower video networking service platform, where the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
a second receiving module 16, configured to receive data corresponding to the at least one data identifier sent by the lower video networking service platform according to the obtaining request.
In an optional implementation, the apparatus further comprises:
and the storage module is used for storing the data identifier carried by the cascade response.
In an optional implementation manner, the number of data identifiers carried by the cascade response is multiple;
the device further comprises:
the display module is used for displaying a plurality of data identifications carried by the cascade response;
the data acquisition request also carries at least one selected data identifier in the displayed plurality of data identifiers.
In the embodiment of the invention, under the condition that the lower-level video networking service platform acquires certain data from the video networking data server in advance and stores the certain data in the lower-level video networking service platform, if the upper-level video networking service platform also needs to acquire the data, the upper-level video networking service platform can acquire the data from the lower-level video networking service platform without acquiring the data from the video networking data server, so that the data is prevented from being directly acquired from the video networking data server repeatedly for many times, and the load of the video networking data server is reduced.
Referring to fig. 8, a block diagram of an embodiment of a data acquisition device based on a video network according to the present invention is shown, where the video network includes an upper video network service platform and a lower video network service platform, the upper video network service platform and the lower video network service platform are connected in communication via a video network protocol, and the device may specifically include the following modules:
a third receiving module 21, configured to receive a cascade request sent by the superior video networking service platform;
a second obtaining module 22, configured to obtain a data identifier of data that the lower video networking service platform has an obtaining authority, where the data corresponding to the data identifier at least includes data that is locally stored by the lower video networking service platform;
a generating module 23, configured to generate a cascade response according to the data identifier;
a third sending module 24, configured to send the cascade response to the superior video networking service platform;
a fourth receiving module 25, configured to receive a data acquisition request sent by the superior video networking service platform, where the data acquisition request carries at least one data identifier in the data identifiers, and the at least one data identifier at least includes a data identifier of data locally stored by the inferior video networking service platform;
a third obtaining module 26, configured to obtain data corresponding to the at least one data identifier;
a fourth sending module 27, configured to send data corresponding to the at least one data identifier to the superior video networking service platform.
In the embodiment of the invention, under the condition that the lower-level video networking service platform acquires certain data from the video networking data server in advance and stores the certain data in the lower-level video networking service platform, if the upper-level video networking service platform also needs to acquire the data, the upper-level video networking service platform can acquire the data from the lower-level video networking service platform without acquiring the data from the video networking data server, so that the data is prevented from being directly acquired from the video networking data server repeatedly for many times, and the load of the video networking data server is reduced.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The data acquisition method and device based on the video network provided by the invention are introduced in detail, and the principle and the implementation mode of the invention are explained by applying specific examples in the text, and the description of the embodiments is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A data acquisition method based on video networking is characterized in that the video networking comprises an upper video networking service platform and a lower video networking service platform, the upper video networking service platform and the lower video networking service platform are in communication connection through a video networking protocol, and the method comprises the following steps:
the superior video networking service platform acquires a cascading request, wherein the cascading request at least carries a platform identifier of the inferior video networking service platform;
the superior video networking service platform sends the cascade request to a subordinate video networking service platform corresponding to the platform identification;
the higher-level video networking service platform receives a cascade response sent by the lower-level video networking service platform according to the cascade request, the cascade response at least carries a data identifier of data with acquisition permission of the lower-level video networking service platform, the data corresponding to the data identifier at least comprises data locally stored by the lower-level video networking service platform, and the locally stored data at least comprises data acquired by the lower-level video networking service platform from a video networking data server in advance;
the superior video networking service platform sends a data acquisition request to the subordinate video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
and the superior video networking service platform receives the data corresponding to the at least one data identifier sent by the subordinate video networking service platform according to the acquisition request.
2. The method of claim 1, further comprising:
and the superior video networking service platform stores the data identification carried by the cascade response.
3. The method of claim 1, wherein the cascade response carries a plurality of data identifications;
the method further comprises the following steps:
displaying a plurality of data identifications carried by the cascade response;
the data acquisition request also carries at least one selected data identifier in the displayed plurality of data identifiers.
4. A data acquisition method based on video networking is characterized in that the video networking comprises an upper video networking service platform and a lower video networking service platform, the upper video networking service platform and the lower video networking service platform are in communication connection through a video networking protocol, and the method comprises the following steps:
the lower-level video networking service platform receives a cascading request sent by the upper-level video networking service platform;
the lower video networking service platform acquires a data identifier of data with acquisition authority of the lower video networking service platform, the data corresponding to the data identifier at least comprises data locally stored by the lower video networking service platform, and the locally stored data at least comprises data acquired by the lower video networking service platform from a video networking data server in advance;
the lower-level video networking service platform generates a cascade response according to the data identification;
the lower-level video networking service platform sends the cascade response to the upper-level video networking service platform;
the lower-level video networking service platform receives a data acquisition request sent by the upper-level video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
the lower video network service platform acquires data corresponding to the at least one data identifier;
and the lower-level video networking service platform sends the data corresponding to the at least one data identifier to the upper-level video networking service platform.
5. The utility model provides a data acquisition device based on video networking, its characterized in that, video networking includes higher level video networking service platform and subordinate's video networking service platform, higher level video networking service platform with subordinate's video networking service platform passes through video networking protocol communication connection, the device corresponds higher level video networking service platform includes:
the first obtaining module is used for obtaining a cascading request, wherein the cascading request at least carries a platform identifier of the lower-level video networking service platform;
the first sending module is used for sending the cascade request to the lower-level video networking service platform corresponding to the platform identifier;
a first receiving module, configured to receive a cascade response sent by the lower video networking service platform according to the cascade request, where the cascade response at least carries a data identifier of data that the lower video networking service platform has an acquisition right, where the data corresponding to the data identifier at least includes data locally stored by the lower video networking service platform, and the locally stored data at least includes data that the lower video networking service platform has acquired from a video networking data server in advance;
the second sending module is used for sending a data acquisition request to the lower-level video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
and the second receiving module is used for receiving the data corresponding to the at least one data identifier sent by the lower-level video networking service platform according to the acquisition request.
6. The apparatus of claim 5, further comprising:
and the storage module is used for storing the data identifier carried by the cascade response.
7. The apparatus of claim 5, wherein the cascade response carries a plurality of data identifications;
the device further comprises:
the display module is used for displaying a plurality of data identifications carried by the cascade response;
the data acquisition request also carries at least one selected data identifier in the displayed plurality of data identifiers.
8. The utility model provides a data acquisition device based on video networking, its characterized in that, video networking includes higher level video networking service platform and subordinate's video networking service platform, higher level video networking service platform with subordinate's video networking service platform passes through video networking protocol communication connection, the device corresponds subordinate's video networking service platform includes:
the third receiving module is used for receiving the cascade request sent by the superior video networking service platform;
the second acquisition module is used for acquiring a data identifier of data of which the lower video networking service platform has an acquisition authority, wherein the data corresponding to the data identifier at least comprises data locally stored by the lower video networking service platform, and the locally stored data at least comprises data which is acquired by the lower video networking service platform from a video networking data server in advance;
the generating module is used for generating a cascade response according to the data identification;
the third sending module is used for sending the cascade response to the superior video networking service platform;
the fourth receiving module is used for receiving a data acquisition request sent by the superior video networking service platform, wherein the data acquisition request carries at least one data identifier in the data identifiers; the at least one data identifier at least comprises a data identifier of data stored locally by the subordinate video networking service platform;
a third obtaining module, configured to obtain data corresponding to the at least one data identifier;
and the fourth sending module is used for sending the data corresponding to the at least one data identifier to the superior video networking service platform.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method for internet-of-view based data acquisition according to any of claims 1 to 3 are implemented when the processor executes the program.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor when executing the program implements the steps of the method for internet-of-view based data acquisition of claim 4.
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| CN109905363B (en) * | 2019-01-08 | 2021-12-03 | 视联动力信息技术股份有限公司 | Network disk access method and device |
| CN110096854B (en) * | 2019-03-25 | 2022-03-25 | 视联动力信息技术股份有限公司 | Resource permission sharing method and device and readable storage medium |
| CN110087107B (en) * | 2019-04-25 | 2022-01-14 | 视联动力信息技术股份有限公司 | Method for improving system self-adaptive capacity and video networking system |
| CN110266755B (en) * | 2019-05-09 | 2022-02-25 | 视联动力信息技术股份有限公司 | Method and device for acquiring state of cooperative server |
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