CN110557372A - data acquisition method and system - Google Patents

Abstract

The embodiment of the invention provides a data acquisition method and a system, wherein the method is applied to a video network, the video network comprises a client, a service layer, an acquisition layer and a video network server, and the method comprises the following steps: the acquisition layer receives request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening video service; responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer; the service layer processes the service state data to obtain service data; and the service layer sends the service data to the client. In the method, the service layer acquires the service state data from the video networking server through the acquisition layer, and the service state data is processed to obtain the service data and is returned to the client, so that the client can acquire real-time video service data and provide data reference for network operation.

Description

data acquisition method and system

Technical Field

The invention relates to the technical field of video networking, in particular to a data acquisition method and a data acquisition system.

Background

currently, in video networking, there are hundreds of thousands of devices that are engaged in different services. Video services such as video telephone and live broadcast are important services in video networking. And the video data volume is large, and the large bandwidth in the network is occupied, so that the service state is acquired in real time, and the method has a large guiding effect on network operation. However, due to the two-layer architecture and the special communication mode of the video network, it is complicated for the client to acquire the video data of the service terminal from the video network, and at present, the client cannot acquire the real-time video service data from the video network.

Disclosure of Invention

In view of the above, embodiments of the present invention are proposed in order to provide a data acquisition method and system that overcome the above problems or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a data acquisition method, which is applied to a video network, where the video network includes a client, a service layer, an acquisition layer, and a video network server, and the method includes:

The acquisition layer receives request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening video service;

Responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer;

The service layer processes the service state data to obtain service data;

And the service layer sends the service data to the client.

optionally, the service layer and the acquisition layer communicate via a TCP/IP protocol, the acquisition layer and the video network server communicate via a video network V2V protocol, and the acquisition layer requests the video network server for the traffic status data of each terminal in the terminal list in response to the request information and returns the traffic status data to the service layer, including:

The acquisition layer encapsulates the request information into a data packet of a V2V protocol of the video network and sends the data packet to the video network server;

The video network server packages the service state data of each terminal in the terminal list into a video network V2V protocol data packet and sends the video network V2V protocol data packet to the acquisition layer;

The acquisition layer analyzes the data packet of the V2V protocol of the video network, encapsulates the data packet into a data packet of a TCP/IP protocol and returns the data packet to the service layer.

Optionally, the service state data includes a terminal identifier, a corresponding service type, and service state sub-data corresponding to the service type, the service layer includes a first storage area, a second storage area, and a third storage area, and the service layer processes the service state data to obtain service data, including:

If one of the terminal identifications does not exist in the first storage area, storing the terminal identification and the corresponding service state data as first data into the first storage area to obtain service data of the first storage area;

if the service type corresponding to one of the terminal identifications is a video telephone, storing the terminal identification and the corresponding service state subdata as second data into the second storage area to obtain service data of the second storage area;

and if the service type corresponding to one of the terminal identifications is live broadcast, storing the terminal identification and the corresponding service state subdata as third data into a third storage area to obtain service data of the third storage area.

Optionally, the sending the service data to the client includes:

responding to the query request of the client, and returning the service data of the first storage area, the second storage area and the third storage area to the client by the service layer;

or the like, or, alternatively,

And the service layer actively pushes the first data, the second data and the third data to the client.

Optionally, before the acquisition layer receives the request information sent by the service layer, the method further includes:

the service layer periodically acquires a terminal list from a database storing ongoing video services;

And the service layer generates request information according to the terminal list and sends the request information to the acquisition layer.

The embodiment of the invention also discloses a data acquisition system which is applied to the video network and comprises a client, a service layer, an acquisition layer and a video network server;

the acquisition layer comprises:

the acquisition module is used for receiving request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening video services;

the response module is used for responding to the request information, requesting the service state data of each terminal in the terminal list from the video network server and returning the service state data to the service layer;

the service layer comprises:

The processing module is used for processing the service state data to obtain service data;

and the sending module is used for sending the service data to the client.

Optionally, the service layer and the acquisition layer communicate via a TCP/IP protocol, the acquisition layer and the video network server communicate via a video network V2V protocol, and the response module of the acquisition layer includes:

the first sending submodule is used for packaging the request information into a data packet of a video network V2V protocol and sending the data packet to the video network server;

The second sending submodule is used for packaging the service state data of each terminal in the terminal list into a data packet of a video networking V2V protocol and sending the data packet to the acquisition layer;

And the return module is used for analyzing the data packet of the V2V protocol of the video network, packaging the data packet into a data packet of a TCP/IP protocol and returning the data packet to the service layer.

optionally, the service state data includes a terminal identifier, a corresponding service type and corresponding service state sub-data thereof, the service layer includes a first storage area, a second storage area and a third storage area, and the processing module of the service layer includes:

the first processing submodule is used for storing the terminal identifier and the corresponding service state data into the first storage area as first data to obtain service data of the first storage area if one of the terminal identifiers does not exist in the first storage area;

The second processing submodule is used for storing the terminal identifier and the corresponding service state subdata into the second storage area as second data to obtain service data of the second storage area if the service type corresponding to one of the terminal identifiers is the video telephone;

and the third processing submodule is used for storing the terminal identifier and the corresponding service state subdata into the third storage area as third data to obtain the service data of the third storage area if the service type corresponding to one of the terminal identifiers is live broadcast.

optionally, the sending module of the service layer includes:

the third sending submodule is used for responding to the query request of the client and returning the service data of the first storage area, the second storage area and the third storage area to the client;

or the like, or, alternatively,

And the fourth sending submodule is used for actively pushing the first data, the second data and the third data to the client.

optionally, the service layer further includes:

the list acquisition module is used for periodically acquiring a terminal list from a database storing ongoing video services;

And the request information sending module is used for generating request information according to the terminal list and sending the request information to the acquisition layer.

The embodiment of the invention has the following advantages:

the data acquisition method and the data acquisition system are applied to a video network, wherein the video network comprises a client, a service layer, an acquisition layer and a video network server, the acquisition layer receives request information sent by the service layer, and the request information comprises a terminal list for registering and opening video services; responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer; the service layer processes the service state data to obtain service data; and the service layer sends the service data to the client. In the method, the service layer acquires the service state data from the video networking server through the acquisition layer, and the service state data is processed to obtain the service data and is returned to the client, so that the client can acquire real-time video service data and provide data reference for network operation.

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 one of a flow chart of steps of a data acquisition method embodiment of the present invention;

FIG. 6 is a system architecture diagram of one data acquisition method embodiment of the present invention;

FIG. 7 is a flowchart illustrating a second step of an embodiment of a data acquisition method according to the present invention;

FIG. 8 is a data flow diagram of a data acquisition method embodiment of the present invention;

FIG. 9 is one of the block diagrams of the architecture of a data acquisition system of the present invention;

FIG. 10 is a second block diagram of a data acquisition system 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 incoming data packet of the CPU module 304 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 308 is configured by the CPU module 304, 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 MACSA of the ethernet coordination 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 above characteristics of the video network, one of the core concepts of the embodiments of the present invention is provided, in which, following a protocol of the video network, a collection layer receives request information sent by a service layer, in response to the request information, the collection layer returns requested service state data to the service layer, the service layer processes the service state data, and sends the processed service data to a client.

referring to fig. 5, there is shown one of the steps of a data acquisition method embodiment of the present invention in a flowchart, the method is applied in a video network, the video network includes a client, a service layer, an acquisition layer and a video network server, the method includes:

Step 501, the acquisition layer receives request information sent by the service layer, wherein the request information includes a terminal list for registering and opening video service.

currently, in the video network, hundreds of thousands of devices are in different services. The video telephone, the live broadcast and other services play a very important role in video networking. The visual telephone, as the name implies, carries on the video conversation one to one, one side dials the number of the other side's video network terminal equipment through the video network terminal equipment, after the other side receives, can carry on the video conversation one to one. The live broadcast comprises the steps of releasing the live broadcast and watching the live broadcast, and is a video service form.

The video telephone and the live broadcast service have large video data volume and occupy larger bandwidth in the network, so the service state is obtained in real time, and the method has a larger guiding function on network operation. For example, in the whole video network, how many groups of video phones are running, how many terminals are issuing live broadcasts, and how many terminals are watching live broadcasts; each group of videophones, publishing live broadcast services and watching live broadcast services are respectively distributed at what places; the frequency of using the video telephone, broadcasting the live broadcast and watching the live broadcast is high, the frequency of using the video telephone, broadcasting the live broadcast is low, and the like, the real-time data are obtained, the operation state of the whole network service can be mastered, and convenience is brought to the operation and maintenance of the network. The data acquisition method of the embodiment of the invention can acquire the service data of the video telephone, the broadcast watching and the like in the network in real time, and provides important reference data for the operation and maintenance of the network.

the data acquisition method is applied to the video network, and the video network comprises a client, a service layer, an acquisition layer and a video network server.

referring to fig. 6, a system architecture diagram of one data acquisition method embodiment of the present invention is shown. As shown in FIG. 6, the client, the service layer, the acquisition layer and the video network server are in communication connection one by one, and the service layer is in communication connection with the database. The video network server has 0 port and 1 port, where 0 port is a service port and 1 port is a management port. All video networking services are processed through a port 0; and the port 1 is a management port and is responsible for configuration of equipment, uploading of files, acquisition of information and the like. The video service data is obtained through port 1. Server 1 port, the mode of communicating with the outside world, i.e. video networking v2v protocol. The internet of view v2v protocol is a two-layer protocol based on the OSI (Open System Interconnection) model, is a protocol unique to the internet of view, and has the characteristics of quickness and security. The acquisition layer in the embodiment of the invention communicates with the video network server through a v2v protocol to acquire the service state data from the video network server. The service layer is software capable of realizing service and processing functions, can be integrated on a video network server, and can also be independently deployed on the server. The service layer is connected with the database, can acquire the terminal list from the database and send the terminal list to the acquisition layer, and can receive the service state data of the terminals in the terminal list acquired by the acquisition layer, and the service layer processes the service state data to obtain the service data and sends the service data to the client. The acquisition layer is software capable of realizing a data acquisition function, and can be deployed on a server together with the service layer or on a server different from the service layer. The client is an executable file which can be opened by double-click, and the business data list can be displayed after the executable file is opened.

Specifically, the service layer obtains a list of all terminals registered to open the video service in the video network from the database, where the list only includes the terminal identification information and does not include the service state information of the terminal. The service layer encapsulates the terminal list information in request information and sends the request information to the acquisition layer, wherein the request information can be request information for acquiring the service state information of the terminals in the terminal list. The acquisition layer receives the request information.

Step 502, responding to the request information, the acquisition layer requests the service state data of each terminal in the terminal list from the video network server, and returns the service state data to the service layer.

In the embodiment of the invention, the acquisition layer communicates with the video network server through a v2v protocol, and the acquisition layer communicates with the video network server to realize the functions of setting the network access parameters of the video network equipment, acquiring the operation information of the video network equipment, upgrading the video network equipment and the like.

specifically, the acquisition layer sends the request information to the video networking server, and requests service status data of each terminal in the terminal list, where the service status data may include terminal identification information, service type information, and service status information of the video service in progress, where the service type information may include services such as video telephone and live broadcast, and the service status may include information such as whether the terminal is a service receiver or initiator.

and after the acquisition layer acquires the service state data, returning the data to the service layer.

step 503, the service layer processes the service state data to obtain service data.

In the embodiment of the present invention, the service layer processes the service status data, which may include comparing the data obtained this time with the data obtained last time, to obtain the real-time change information of the service status data. For example, the number of terminals that are currently performing video services acquired this time is increased or decreased compared to the last time, which terminals are added to the video services, which terminals quit the video services, and which new changes are specific to the video telephone services and the live broadcast services.

Because the data volume is large, the embodiment of the invention firstly stores the data in the memory for processing, the memory processing speed is high, and the timeliness of the data is greatly accelerated. In the data processing process, to process the continuous change of the state, the state of the data obtained this time needs to be continuously compared with the state of the data obtained last time, so as to inform the client of the real-time changes in time. In the memory processing, the state of the last service data is searched for quickly. The present invention employs a map container. The map container is an associative container of the STL that provides one-to-one data handling capability, and due to this property, it accomplishes the potential to provide fast channels in programming as we handle one-to-one data. A red-black tree (a balanced binary tree in a non-strict sense) is built in the map, and the tree has a function of automatically sequencing data, so that all data in the map are ordered. And (3) rapidly searching the records according to the key value, wherein the searching complexity is basically Log (N), if 1000 records exist, the maximum searching time is 10, 1,000,000 records are searched, and the maximum searching time is 20. And a map container is adopted, so that the data processing speed is greatly increased.

and the service layer processes the service state data to obtain service data, wherein the service data is video service information which is changed compared with the last time.

Step 504, the service layer sends the service data to the client.

in the embodiment of the invention, the service layer can display the business data to the client in an active push mode, or the user can double click the client software, and accordingly, the client software displays the result list of the business data.

in summary, in the data acquisition method provided in the embodiment of the present invention, the acquisition layer receives request information sent by the service layer, where the request information includes a terminal list for registering and opening a video service; responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer; the service layer processes the service state data to obtain service data; and the service layer sends the service data to the client. In the method, the service layer acquires the service state data from the video networking server through the acquisition layer, and the service state data is processed to obtain the service data and is returned to the client, so that the client can acquire real-time video service data and provide data reference for network operation.

Referring to fig. 7, there is shown a second step flow chart of an embodiment of a data acquisition method of the present invention, the method is applied in a video network, the video network includes a client, a service layer, an acquisition layer and a video network server, the method includes:

step 601, the service layer periodically obtains a terminal list from a database storing ongoing video services.

In the embodiment of the invention, in order to acquire real-time data of terminal service change, a service layer periodically acquires a terminal list from a database. The database stores a list of all terminals registered to activate video services in the video network, wherein the list only includes terminal identification information but not service state information of the terminals. With the service requirement, the terminal is added or deleted, so the terminal information in the database is changing continuously. The terminal list is periodically acquired, so that the changed terminal information can be timely acquired, and the terminal information can be prevented from being missed.

step 602, the service layer generates request information according to the terminal list and sends the request information to the acquisition layer.

In order to obtain the service state information of the terminal in the terminal list, the service layer encapsulates the terminal list information in a request data packet for obtaining the service state information, and sends the request data packet to an acquisition layer connected with the service layer. The service layer and the collection layer communicate through a TCP/IP protocol, and therefore, the request data packet is in a TCP/IP protocol format.

Step 603, the acquisition layer receives request information sent by the service layer, wherein the request information includes a terminal list for registering and opening video service.

In the embodiment of the present invention, step 603 may refer to step 501, which is not described herein again.

Step 604, the acquisition layer encapsulates the request information into a data packet of a V2V protocol of the video network, and sends the data packet to the video network server.

In the embodiment of the invention, all terminals which register the video-activating service in the video network are connected with the video network server, the video network server provides technical support for the video service for the terminals, and the video network server grasps the service state data of the terminals. Therefore, the acquisition layer sends the request information to the video network server. Because the acquisition layer and the V.sub.net server communicate via the V.sub.2 2V protocol, the acquisition layer needs to encapsulate the request information as packets of the V.sub.2 2V protocol.

step 605, the video network server encapsulates the service status data of each terminal in the terminal list into a data packet of a video network V2V protocol, and sends the data packet to the acquisition layer.

in the embodiment of the invention, the video network server inquires the service state information of the terminal in the terminal list according to the terminal list information in the request information, wherein the service state information can be whether the terminal is currently carrying out video service or not, and the type of the carried out video service is video telephone, live broadcast or other, whether the terminal is a receiving party or an initiating party, and the like. After the video network server obtains the service state information of all the terminals in the terminal list, the information is still packaged into a data packet of a V2V protocol and returned to the acquisition layer.

Step 606, the collection layer parses the data packet of the V2V protocol of the video network, encapsulates the data packet into a data packet of a TCP/IP protocol, and returns the data packet to the service layer.

In the embodiment of the invention, the acquisition layer analyzes the data packet of the V2V protocol, acquires the service state information from the data packet, encapsulates the service state information into the data packet of the TCP/IP protocol, and returns the data packet of the TCP/IP protocol to the service layer.

Because the device and the network are set differently, different communication protocols are adopted to transmit the request information and the service state data, and the devices can communicate more efficiently according to network conditions.

Step 607, if one of the terminal identifiers does not exist in the first storage area, the terminal identifier and the corresponding service status data are stored in the first storage area as first data to obtain the service data of the first storage area.

In the embodiment of the invention, the service layer comprises a first storage area, a second storage area and a third storage area, wherein the first storage area stores all terminal service state information of video service currently being performed, the second storage area stores all terminal service state information of video service currently being performed, and the third storage area stores all terminal service state information of live service currently being performed. The information of the first storage area is the sum of the information of the second storage area and the information of the third storage area, and the second storage area and the third storage area respectively store subdivided data of the video telephone service and the live broadcast service.

The service state data includes a terminal identifier, a corresponding service type and corresponding service state subdata, specifically, the terminal identifier is used for representing the identity of the terminal, the service type can be divided into a video telephone, a live broadcast and the like, and the service state subdata includes information such as whether the terminal is a service receiver or an initiator.

after the acquisition layer returns the service state data, the service layer firstly compares all terminal identifications in the data with terminal identifications in a first storage area, if one of the terminal identifications does not exist in the first storage area, the terminal is a newly added terminal, and the terminal identification of the newly added terminal and the corresponding service state data are stored in the first storage area as first data to obtain the service data of the first storage area. Wherein the first data is newly added data of the first storage area; the service data in the first storage area represents all the terminal identifications and corresponding service status data stored in the first storage area.

in addition, if one of the terminal identifications exists in the first storage area, it indicates that the service information of the terminal already exists in the first storage area, and it is not necessary to add the information of the terminal any more, and then the service layer will not do any operation.

In this embodiment of the present invention, according to the service type corresponding to the terminal identifier, in case that the service type is a video phone, step 608 is executed, and in case that the service type is a live broadcast, step 609 is executed.

Step 608, if the service type corresponding to one of the terminal identifiers is a videophone, storing the terminal identifier and the corresponding service state sub-data as second data in the second storage area to obtain service data of the second storage area.

In the embodiment of the present invention, if the service type corresponding to the newly added terminal is a videophone, the newly added terminal and the corresponding service state sub-data may be stored as second data in a second storage area in which videophone data is stored, so as to obtain service data in the second storage area. Wherein the second data is the new data of the second storage area; the service data of the second storage area represents all the terminal identifications and the corresponding service state sub-data stored in the second storage area.

Step 609, if the service type corresponding to one of the terminal identifiers is live broadcast, storing the terminal identifier and the corresponding service state subdata as third data into the third storage area to obtain service data of the third storage area.

in the embodiment of the present invention, if the service type corresponding to the newly added terminal is live broadcast, the newly added terminal and the corresponding service state sub-data may be stored as third data in a third storage area in which live broadcast data is stored, so as to obtain service data in the third storage area. Wherein the third data is the new data of the third storage area; the service data in the third storage area represents all the terminal identifications and corresponding service state sub-data stored in the third storage area.

In the embodiment of the invention, all video service data changed compared with the last time are stored in the first storage area, the changed video telephone service data are stored in the second storage area, and the changed live broadcast service data are stored in the third storage area, so that the storage of the service state data is more organized and more convenient to inquire.

In the embodiment of the present invention, after step 609, step 610 may be executed, and step 611 may also be executed.

Step 610, in response to the query request of the client, the service layer returns the service data of the first storage area, the second storage area and the third storage area to the client.

in the embodiment of the invention, if the user opens the client software by double-click, the client software calls the service data from the service layer, and then displays a result list of the service data, wherein the result list comprises all the service data stored in the first storage area, the second storage area and the third storage area.

step 611, the service layer actively pushes the first data, the second data and the third data to the client.

the service layer can send the service data to the client according to the calling of the client, and can also actively push the newly added data of the storage area to the client, namely the first data, the second data and the third data. Therefore, the client can acquire the change information of the terminal service in time so as to master the running state of the network service at any time. The method actively pushes the changed video service data, the video telephone service data and the live broadcast service data to the client, so that the client can timely master the changed data in the network, the network operation strategy can be timely adjusted, and better video service is provided for users.

the data acquisition method provided in the embodiment of the present invention has the beneficial effects of the data acquisition method in fig. 5, and also adopts different communication protocols to transmit request information and service status data, so that the devices can communicate with each other more efficiently according to network conditions; in addition, all video service data changed compared with the last time are stored in the first storage area, the changed video telephone service data are stored in the second storage area, and the changed live broadcast service data are stored in the third storage area, so that the storage of service state data is more organized and more convenient to query; and the client is actively pushed with the changed video service data, the video telephone service data and the live broadcast service data, so that the client can timely master the changed data in the network, thereby timely adjusting the network operation strategy and providing better video service for users.

Referring to fig. 8, a data flow diagram of an embodiment of a data acquisition method of the present invention is shown. As shown in FIG. 8, the client, the service layer, the acquisition layer and the video network server are in communication connection one by one, and the service layer is in communication connection with the database.

Firstly, a service layer acquires all terminal lists registered for opening video services in a video network from a database, encapsulates the terminal lists in a data packet of request information and sends the data packet to an acquisition layer through a TCP/IP protocol; the acquisition layer sends the request information to the video network server through a V2V protocol, the video network server returns the service state data to the acquisition layer through a V2V protocol after obtaining the service state data, the acquisition layer returns the service state data to the service layer through a TCP/IP protocol, and the service layer processes the service state data to obtain the service data; on one hand, the service layer actively pushes the changed data relative to the last data in the business data to the client, and on the other hand, the service layer returns the business data to the client in response to the query request of the client.

referring to FIG. 9, there is shown one of the block diagrams of the architecture of a data acquisition system of the present invention. The system 700 comprises a client 701, a service layer 702, an acquisition layer 703 and a video network server 704;

the acquisition layer 703 comprises:

an acquisition module 7031, configured to receive request information sent by the service layer, where the request information includes a terminal list for registering and opening a video service;

A response module 7032, configured to respond to the request information, request the service state data of each terminal in the terminal list from the video network server, and return the service state data to the service layer;

The service layer 702 includes:

a processing module 7021, configured to process the service state data to obtain service data;

A sending module 7022, configured to send the service data to the client.

for the structural 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.

In the data acquisition device provided by the embodiment of the invention, the acquisition layer receives request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening a video service; responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer; the service layer processes the service state data to obtain service data; and the service layer sends the service data to the client. In the method, the service layer acquires the service state data from the video networking server through the acquisition layer, and the service state data is processed to obtain the service data and is returned to the client, so that the client can acquire real-time video service data and provide data reference for network operation.

Referring to fig. 10, a second block diagram of the data acquisition system of the present invention is shown on the basis of fig. 9. A response module 7032 of the acquisition layer comprising:

The first sending submodule 70321 is used for packaging the request information into a data packet of a video network V2V protocol and sending the data packet to the video network server;

A second sending submodule 70322, configured to encapsulate the service status data of each terminal in the terminal list into a data packet in a V2V protocol of a video network, and send the data packet to the acquisition layer;

And the return submodule 70323 is configured to parse the packet of the V2V protocol of the video network, encapsulate the packet into a packet of a TCP/IP protocol, and return the packet to the service layer.

The processing module 7021 of the service layer includes:

a first processing sub-module 70211, configured to, if one of the terminal identifiers does not exist in the first storage area, store the terminal identifier and the corresponding service status data as first data in the first storage area, so as to obtain service data of the first storage area;

a second processing submodule 70212, configured to, if the service type corresponding to one of the terminal identifiers is a video telephone, store the terminal identifier and the corresponding service state sub-data as second data in the second storage area, so as to obtain service data in the second storage area;

A third processing submodule 70213, configured to, if the service type corresponding to one of the terminal identifiers is live broadcast, store the terminal identifier and the corresponding service state sub-data as third data in the third storage area, so as to obtain service data in the third storage area.

The sending module 7022 of the service layer includes:

The third sending submodule 70221 is configured to, in response to the query request from the client, return the service data in the first storage area, the second storage area, and the third storage area to the client;

or the like, or, alternatively,

And a fourth sending submodule 70222, configured to actively push the first data, the second data, and the third data to the client.

the service layer 702 further includes:

A list acquiring module 7023, configured to periodically acquire a terminal list from a database storing ongoing video services;

and the request information sending module 7024 is configured to generate request information according to the terminal list and send the request information to the acquisition layer.

For the structural 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 data acquisition device provided in the embodiment of the present invention has the beneficial effects of the data acquisition device in fig. 9, and also adopts different communication protocols to transmit request information and service status data, so that the devices can communicate with each other more efficiently according to network conditions; in addition, all video service data changed compared with the last time are stored in the first storage area, the changed video telephone service data are stored in the second storage area, and the changed live broadcast service data are stored in the third storage area, so that the storage of service state data is more organized and more convenient to query; and the client is actively pushed with the changed video service data, the video telephone service data and the live broadcast service data, so that the client can timely master the changed data in the network, thereby timely adjusting the network operation strategy and providing better video service for users.

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 system provided by the present invention are introduced in detail, and a specific example is applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present 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 is applied to a video network, wherein the video network comprises a client, a service layer, an acquisition layer and a video network server, and the method comprises the following steps:

The acquisition layer receives request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening video service;

Responding to the request information, the acquisition layer requests the video network server for the service state data of each terminal in the terminal list and returns the service state data to the service layer;

The service layer processes the service state data to obtain service data;

and the service layer sends the service data to the client.

2. The method of claim 1, wherein said service layer and said acquisition layer communicate via TCP/IP protocol, said acquisition layer and said video network server communicate via video network V2V protocol, and said acquisition layer requests traffic status data for each terminal in said terminal list from said video network server and returns to said service layer in response to said request message, comprising:

The acquisition layer encapsulates the request information into a data packet of a V2V protocol of the video network and sends the data packet to the video network server;

The video network server packages the service state data of each terminal in the terminal list into a video network V2V protocol data packet and sends the video network V2V protocol data packet to the acquisition layer;

The acquisition layer analyzes the data packet of the V2V protocol of the video network, encapsulates the data packet into a data packet of a TCP/IP protocol and returns the data packet to the service layer.

3. The method of claim 1, wherein the service status data includes a terminal identifier, a corresponding service type and service status sub-data corresponding to the service type, the service layer includes a first storage area, a second storage area and a third storage area, and the service layer processes the service status data to obtain service data, including:

if one of the terminal identifications does not exist in the first storage area, storing the terminal identification and the corresponding service state data as first data into the first storage area to obtain service data of the first storage area;

if the service type corresponding to one of the terminal identifications is a video telephone, storing the terminal identification and the corresponding service state subdata as second data into the second storage area to obtain service data of the second storage area;

and if the service type corresponding to one of the terminal identifications is live broadcast, storing the terminal identification and the corresponding service state subdata as third data into a third storage area to obtain service data of the third storage area.

4. The method of claim 3, wherein the sending the traffic data to the client comprises:

responding to the query request of the client, and returning the service data of the first storage area, the second storage area and the third storage area to the client by the service layer;

Or the like, or, alternatively,

And the service layer actively pushes the first data, the second data and the third data to the client.

5. the method of claim 1, wherein before the acquisition layer receives the request message sent by the service layer, the method further comprises:

The service layer periodically acquires a terminal list from a database storing ongoing video services;

And the service layer generates request information according to the terminal list and sends the request information to the acquisition layer.

6. A data acquisition system is characterized by being applied to a video network, and the system comprises a client, a service layer, an acquisition layer and a video network server;

The acquisition layer comprises:

the acquisition module is used for receiving request information sent by the service layer, wherein the request information comprises a terminal list for registering and opening video services;

the response module is used for responding to the request information, requesting the service state data of each terminal in the terminal list from the video network server and returning the service state data to the service layer;

The service layer comprises:

the processing module is used for processing the service state data to obtain service data;

And the sending module is used for sending the service data to the client.

7. the system of claim 6, wherein said service layer and said acquisition layer communicate via TCP/IP protocol, wherein said acquisition layer and said video network server communicate via video network V2V protocol, and wherein said acquisition layer response module comprises:

the first sending submodule is used for packaging the request information into a data packet of a video network V2V protocol and sending the data packet to the video network server;

The second sending submodule is used for packaging the service state data of each terminal in the terminal list into a data packet of a video networking V2V protocol and sending the data packet to the acquisition layer;

And the return module is used for analyzing the data packet of the V2V protocol of the video network, packaging the data packet into a data packet of a TCP/IP protocol and returning the data packet to the service layer.

8. the system of claim 6, wherein the service status data includes a terminal identifier, a corresponding service type and corresponding service status sub-data thereof, the service layer includes a first storage area, a second storage area and a third storage area, and the processing module of the service layer includes:

The first processing submodule is used for storing the terminal identifier and the corresponding service state data into the first storage area as first data to obtain service data of the first storage area if one of the terminal identifiers does not exist in the first storage area;

The second processing submodule is used for storing the terminal identifier and the corresponding service state subdata into the second storage area as second data to obtain service data of the second storage area if the service type corresponding to one of the terminal identifiers is the video telephone;

and the third processing submodule is used for storing the terminal identifier and the corresponding service state subdata into the third storage area as third data to obtain the service data of the third storage area if the service type corresponding to one of the terminal identifiers is live broadcast.

9. The system of claim 8, wherein the sending module of the service layer comprises:

The third sending submodule is used for responding to the query request of the client and returning the service data of the first storage area, the second storage area and the third storage area to the client;

Or the like, or, alternatively,

And the fourth sending submodule is used for actively pushing the first data, the second data and the third data to the client.

10. the system of claim 6, wherein the service layer further comprises:

the list acquisition module is used for periodically acquiring a terminal list from a database storing ongoing video services;

and the request information sending module is used for generating request information according to the terminal list and sending the request information to the acquisition layer.