CN109379254B

CN109379254B - Network connection detection method and system based on video conference

Info

Publication number: CN109379254B
Application number: CN201811321525.XA
Authority: CN
Inventors: 陈鑫; 王艳辉; 亓娜; 张辉
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2018-11-07
Filing date: 2018-11-07
Publication date: 2021-02-09
Anticipated expiration: 2038-11-07
Also published as: CN109379254A

Abstract

The embodiment of the invention provides a method and a system for detecting network connection based on a video conference, wherein the method comprises the following steps: after establishing a first network connection with a first video network client, a video network node server stores relevant information of the first network connection into a preset connection queue, wherein the connection queue stores relevant information of a second network connection between the video network node server and a second video network client; the node server of the video network circularly judges whether the second network connection and the first network connection are overtime or not according to the relevant information of the second network connection, the relevant information of the first network connection and the current time; and the video network node server disconnects the overtime network connection and deletes the related information of the overtime network connection from the connection queue. The embodiment of the invention realizes the network connection detection function based on the video conference.

Description

Network connection detection method and system based on video conference

Technical Field

The invention relates to the technical field of video networking, in particular to a network connection detection method based on a video conference and a network connection detection system based on the video conference.

Background

The video network is a special network for transmitting high-definition video and a special protocol at high speed based on Ethernet hardware, is a higher-level form of the Internet and is a real-time network.

With the continuous expansion of video networking services, the number of devices, applications and functions interacting with a video networking conference management platform is increasing, which causes the network connection requests processed by the video networking conference management platform to increase dramatically, and the condition of abnormal network connection or overtime happens occasionally, so that at present, highly concurrent network requests can be processed through a multiplexing model, but the network connection detection for video conferences still remains a technical problem which needs to be solved urgently.

Disclosure of Invention

In view of the above problems, embodiments of the present invention are proposed to provide a method for detecting a network connection based on a video conference and a corresponding system for detecting a network connection based on a video conference, which overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present invention discloses a method for detecting network connection based on a video conference, where the method is applied to a video network, and the video network includes: a first video networking client, a second video networking client and a video networking node server, said video networking node server communicating with said first video networking client and said second video networking client respectively, said method comprising: after establishing a first network connection between the first video network client and the video network node server, storing relevant information of the first network connection into a preset connection queue, wherein relevant information of a second network connection between the video network node server and the second video network client is stored in the connection queue; the video network node server circularly judges whether the second network connection and the first network connection are overtime or not according to the related information of the second network connection, the related information of the first network connection and the current time; and the video network node server disconnects the overtime network connection and deletes the relevant information of the overtime network connection from the connection queue.

Optionally, the related information of the second network connection includes a second operation time of the second network connection, and the related information of the first network connection includes a first operation time of the first network connection; the video network node server circularly judges whether the second network connection and the first network connection are overtime according to the relevant information of the second network connection, the relevant information of the first network connection and the current time, and the method comprises the following steps: the video network node server judges whether the second network connection is overtime according to the second operation time and the first current time according to a first-in first-out sequence, and judges whether the first network connection is overtime according to the first operation time and the second current time, wherein the first current time is the current time for judging whether the second network connection is overtime, and the second current time is the current time for judging whether the first network connection is overtime; and after judging whether the first network connection is overtime or not and under the condition that the second network connection is not overtime, the video network node server judges whether the second network connection is overtime or not again according to the second operation time and the first current time, and after judging whether the second network connection is overtime or not and under the condition that the first network connection is not overtime, judges whether the first network connection is overtime or not again according to the first operation time and the second current time.

Optionally, after the information related to the first network connection is stored in a preset connection queue by the node server of the internet of view, the method further includes: after receiving first video conference data from the first video network client or after sending second video conference data to the first video network client, the video network node server updates the first operation time to a first time when the first video conference data is received or a second time when the second video conference data is sent; and the video network node server judges whether the first network connection is overtime or not according to the first time and the second current time or according to the second time and the second current time.

Optionally, the video network further comprises a video network database, the video network database being in communication with the video network node server; after the video networking node server disconnects the network connection which is timed out and deletes the related information of the network connection which is timed out from the connection queue, the method further comprises the following steps: the video networking node server records the log information of the overtime network connection and stores the log information into the video networking database; wherein the log information includes one or more of identification information of the first video networking client or the second video networking client, connection establishment time of the first network connection or the second network connection, data transceiving time of the first network connection or the second network connection, and connection disconnection time of the first network connection or the second network connection.

Optionally, the video network further comprises a video network terminal, and the video network terminal communicates with the video network node server; after the video networking node server logs information for the network connection that timed out, the method further comprises: and the video network node server transmits the log information to the video network terminal according to a downlink communication link configured for the video network terminal, and the video network terminal is used for displaying and analyzing the log information.

The embodiment of the invention also discloses a detection system of network connection based on the video conference, which is applied to the video network, and the video network comprises: first video networking client, second video networking client and video networking node server, video networking node server respectively with first video networking client and the second video networking client communicates, video networking node server includes: the connection module is used for establishing a first network connection between the video network node server and the first video network client; the storage module is used for storing the related information of the first network connection into a preset connection queue, and the related information of a second network connection between the node server of the video network and the second video network client is stored in the connection queue; the judging module is used for circularly judging whether the second network connection and the first network connection are overtime or not according to the relevant information of the second network connection, the relevant information of the first network connection and the current time; and the processing module is used for disconnecting the overtime network connection and deleting the relevant information of the overtime network connection from the connection queue.

Optionally, the related information of the second network connection includes a second operation time of the second network connection, and the related information of the first network connection includes a first operation time of the first network connection; the judging module is configured to judge whether the second network connection is overtime according to the second operation time and the first current time in a first-in first-out order, and judge whether the first network connection is overtime according to the first operation time and the second current time, where the first current time is a current time for judging whether the second network connection is overtime, and the second current time is a current time for judging whether the first network connection is overtime; the judging module is further configured to judge whether the second network connection is overtime again according to the second operation time and the first current time after judging whether the first network connection is overtime and the second network connection is not overtime, and judge whether the first network connection is overtime again according to the first operation time and the second current time after judging whether the second network connection is overtime and the first network connection is not overtime.

Optionally, the node server of the video network further comprises: the receiving and sending module is used for receiving first video conference data from the first video networking client or sending second video conference data to the first video networking client after the first network connection between the video networking node server and the first video networking client is established by the connecting module; the updating module is used for updating the first operation time to a first time when the transceiver module receives the first video conference data or a second time when the transceiver module sends the second video conference data after the storage module stores the relevant information of the first network connection into a preset connection queue; the judging module is configured to judge whether the first network connection is overtime according to the first time and the second current time, or according to the second time and the second current time.

Optionally, the video network further comprises a video network database, the video network database being in communication with the video network node server; the video networking node server further comprises: the recording module is used for recording the log information of the overtime network connection and storing the log information into the video networking database after the processing module disconnects the overtime network connection and deletes the relevant information of the overtime network connection from the connection queue; wherein the log information includes one or more of identification information of the first video networking client or the second video networking client, connection establishment time of the first network connection or the second network connection, data transceiving time of the first network connection or the second network connection, and connection disconnection time of the first network connection or the second network connection.

Optionally, the video network further comprises a video network terminal, and the video network terminal communicates with the video network node server; the video networking node server further comprises: and the transmission module is used for transmitting the log information to the video network terminal according to a downlink communication link configured for the video network terminal after the recording module records the overtime log information of the network connection, and the video network terminal is used for displaying and analyzing the log information.

The embodiment of the invention has the following advantages:

the embodiment of the invention is applied to the video network, and the video network can comprise a first video network client, a second video network client and a video network node server, wherein the video network node server is respectively communicated with the first video network client and the second video network client. The first and second video network clients are only any two video network clients in the video network, and the video network in the embodiment of the present invention may include a plurality of video network clients, and is not limited to the first and second video network clients.

In the embodiment of the invention, the first video network client and the second video network client can simultaneously send network connection requests to the video network node server, and can also sequentially send the network connection requests to the video network node server. And the video network node server receives the network connection request and establishes network connection with the first video network client and/or the second video network client according to the network connection request. The network connection between the node server of the video network and the first video network client is called a first network connection, and the network connection between the node server of the video network and the second video network client is called a second network connection. After establishing a first network connection with a first video network client, the video network node server stores relevant information of the first network connection into a preset connection queue, and at the moment, relevant information of a second network connection between the video network node server and a second video network client is stored in the connection queue. And the video network node server circularly judges whether the second network connection and the first network connection are overtime according to the related information of the second network connection, the related information of the first network connection and the current time, then disconnects the overtime network connection in the connection queue, and deletes the related information of the overtime network connection from the connection queue.

The embodiment of the invention applies the characteristics of the video network, the video network node server stores the related information of the network connection between the video network node server and the video network client into the connection queue, and circularly detects whether each network connection is overtime or not by using the related information in the connection queue. For the network connection which is overtime, the video network node server disconnects the network connection and deletes relevant information from the connection queue. The embodiment of the invention realizes the network connection detection function based on the video conference.

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 flowchart illustrating the steps of one embodiment of a method for detecting a network connection based on a video conference;

FIG. 6 is a schematic diagram of the design of a method for detecting abnormal connection of a video conference client in a video network according to the present invention;

fig. 7 is a block diagram of a node server of the video network in an embodiment of a system for detecting network connection based on video conferencing 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 internet of vision technology employs network Packet Switching to satisfy the demand of Streaming (translated into Streaming, and continuous broadcasting, which is a data transmission technology, converting received data into a stable and continuous stream, and continuously transmitting the stream, so that the sound heard by the user or the image seen by the user is very smooth, and the user can start browsing on the screen before the whole data is transmitted). 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 (circled part), 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 (downstream network interface module 301, upstream network interface module 302), the switching engine module 303, and the CPU module 304 are mainly included.

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, 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) and obtaining the token generated by the 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 video networking destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA 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 3 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

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (e.g. various protocol packets, multicast data packets, unicast data packets, etc.), there are at most 256 possibilities, 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 types of different datagrams, and is 64 bytes if the type of the datagram is a variety of protocol packets, or is 1056 bytes if the type of the datagram is a unicast packet, but 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 a Label of Multi-Protocol Label switching (MPLS), and assuming that there are two connections between a device a and a device B, there are 2 labels for a packet from the device a to the device B, and 2 labels for a 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 embodiment of the invention is provided, the video network node server stores the relevant information of the network connection between the video network node server and the video network client into the connection queue according to the protocol of the video network, circularly detects whether the network connection is overtime according to the relevant information in the connection queue, disconnects the overtime network connection, and deletes the relevant information of the overtime network connection from the connection queue.

Referring to fig. 5, a flowchart illustrating steps of an embodiment of a method for detecting a network connection based on a video conference according to the present invention is shown, and the method may be applied to a video network, and the video network may include: the method comprises the following steps of:

step 501, after establishing a first network connection with a first video network client, a video network node server stores relevant information of the first network connection into a preset connection queue.

In the embodiment of the invention, the video networking node server can be a video networking conference management server and is used for controlling the video conference in the video networking. The first video network client can be any one of a video conference control client, a web service client or a video conference scheduling service client. The embodiment of the invention does not specifically limit the types, models and the like of the node server of the video network and the first video network client.

When the node server of the video networking establishes the first network connection with the first video networking client, the node server of the video networking may establish the first network connection according to a network connection request from the first video networking client, where the network connection request may include identification information of the first video networking client, a key for network connection, and the like. After the first network connection is established, the node server of the video network may generate relevant information of the first network connection, where the relevant information may include identification information of a connection object of the first network connection, that is, identification information of the first video network client, connection start time, and the like. And the video network node server stores the generated related information of the first network connection into a preset connection queue, wherein the related information of the second network connection between the video network node server and the second video network client side is stored in the connection queue. The second video network client can also be any one of a video conference control client, a web service client or a video conference scheduling service client. The related information of the second video network client may also include identification information of a connection object connected to the second network, that is, identification information of the second video network client, connection start time, and the like.

It should be noted that the connection queue already stores the information related to the second network connection, which indicates that the establishment time of the second network connection is earlier than the establishment time of the first network connection, or it can be understood that the information related to the second network connection is stored in the connection queue earlier than the information related to the first network connection is stored in the connection queue. If the ordering is performed according to the first-in first-out sequence in the connection queue, the related information of the second network connection is arranged before the related information of the first network connection, and the related information of the first network connection is arranged behind the related information of the second network connection.

Step 502, the node server of the video network circularly judges whether the second network connection and the first network connection are overtime according to the relevant information of the second network connection, the relevant information of the first network connection and the current time.

In the embodiment of the invention, the video network node server can carry out circular detection on all connected network connections, and the aim is to judge which one or more network connections are overtime. The video network node server stores the related information of each network connection into a connection queue for all the connected network connections, and the related information of each network connection is sorted in the connection queue according to the first-in first-out sequence. The embodiment of the invention only exemplifies the technical scheme of the video network node server for circularly detecting the network connection timeout by the first network connection and the second network connection, and the embodiment of the invention can be referred to for the condition that more than two network connections exist.

Specifically, the node server of the video network may determine, according to a first-in first-out sequence, whether the second network connection is overtime according to a second operation time and a first current time in the related information of the second network connection, and then determine whether the first network connection is overtime according to a first operation time and a second current time in the related information of the first network connection, where the first current time is a current time for determining whether the second network connection is overtime, and the second current time is a current time for determining whether the first network connection is overtime. After judging whether the first network connection is overtime or not, if the second network connection is not overtime, judging whether the second network connection is overtime or not again according to the second operation time and the first current time. After judging whether the second network connection is overtime or not, if the first network connection is not overtime, judging whether the first network connection is overtime or not again according to the first operation time and the second current time.

For example, the connection queue includes related information X1 of the first network connection L1, the related information X1 includes the first operation time T1, the connection queue further includes related information X2 of the second network connection L2, and the related information X2 includes the second operation time T2. Furthermore, the related information X1 is arranged after the related information X2 in the connection queue, i.e., the related information X2 is stored in the connection queue first, and the related information X1 is stored in the connection queue later. The video network node server checks in a loop whether the second network connection L2 and the first network connection L1 time out. The node server of the video network firstly utilizes the second operation time T2 and the first current time T1 to judge whether the second network connection L2 is overtime, no matter whether the second network connection L2 is overtime, the node server of the video network then utilizes the first operation time T1 and the second current time T2 to judge whether the first network connection L1 is overtime, no matter whether the first network connection L1 is overtime, the node server of the video network utilizes the second operation time T2 and the first current time T3 to judge whether the second network connection L2 is overtime under the condition that the second network connection L2 is not overtime, at this time, the node server of the video network secondly judges whether the second network connection L2 is overtime. Whether the second network connection L2 is overtime or not, the video network node server judges whether the first network connection L1 is overtime or not by using the first operation time T1 and the second current time T4 under the condition that the first network connection L1 is not overtime, at the moment, the video network node server judges whether the first network connection L1 is overtime or not for the second time, and the like is carried out until the first network connections L1 and L2 are both overtime. It should be noted that, since the current time is a real-time variable value, the first current times t1 and t3 are two different times, and the second current times t2 and t4 are two different times.

In a preferred embodiment of the present invention, the node server of the visual network may update the related information in the connection queue, and specifically, the node server of the visual network may update the operation time in the related information. In practical applications, after the node server establishes the first network connection with the first video network client, the node server may receive video conference data from the first video network client, and may also send the video conference data to the first video network client, where the received video conference data may be referred to as first video conference data, and the sent video conference data may be referred to as second video conference data. The node server of the visual network may update the first operation in the related information of the first network connection to the first time when the first video conference data is received, or may update the first operation in the related information of the first network connection to the second time when the second video conference data is transmitted. For example, the first operation time T1 in the related information X1 of the first network connection L1 is the connection start time "14: 00 ", the node server of the visual networking at the first time" 14: 05 ", the first video conference data from the first video network client is received, the video network node server changes the first operation time T1 from" 14: 00 "update to" 14: 05".

Further, the node server of the visual network may determine whether the network connection is overtime using the updated operation time ("14: 05" in the above example) and the current time, i.e., may determine whether the first network connection is overtime based on the first time and the second current time, or based on the second time and the second current time.

It should be noted that, in the technical scheme of determining whether the network connection is overtime by using the operation time and the current time in the embodiment of the present invention, a time difference between the operation time and the current time may be calculated, and if the time difference is less than or equal to a preset time threshold, it is determined that the network connection is not overtime; if the time difference is greater than the preset time threshold, it is determined that the network connection is overtime, and other technical means may also be adopted in the embodiment of the present invention to determine whether the network connection is overtime, for example, the technical means adopted to determine whether the network connection is overtime is determined by using the capacity of the received and/or transmitted video conference data and the preset data capacity.

In step 503, the node server disconnects the network connection which is overtime, and deletes the information related to the network connection which is overtime from the connection queue.

If the first network connection is overtime, the node server of the video network disconnects the first network connection and deletes the relevant information of the first network connection from the connection queue.

In a preferred embodiment of the present invention, the video network may further comprise a video network database connected to the video network node server. After the above step 501 or step 503, the node server of the video network may record log information of the network connection that is timed out, and store the log information into the video network database, where the log information includes, but is not limited to, one or more of identification information of the first video network client or the second video network client, connection establishment time of the first network connection or the second network connection, data transceiving time of the first network connection or the second network connection, and connection disconnection time of the first network connection or the second network connection.

In a preferred embodiment of the invention, the video network may further comprise a video network terminal connected to the video network node server. After the video networking node server records the log information, the log information can be transmitted to the video networking terminal according to a downlink communication link configured for the video networking terminal, and the video networking terminal is used for displaying and analyzing the log information.

In this practical application, the video network is a network with a centralized control function, and includes a main control server and a lower level network device, where the lower level network device includes a terminal, and one of the core concepts of the video network is that a table is configured for a downlink communication link of a current service by notifying a switching device by the main control server, and then a data packet is transmitted based on the configured table.

Namely, the communication method in the video network includes:

the main control server configures a downlink communication link of the current service; and transmitting the data packet of the current service sent by the source terminal to a target terminal (such as a video network terminal) according to a downlink communication link.

In the embodiment of the present invention, configuring the downlink communication link of the current service includes: informing the switching equipment related to the downlink communication link of the current service to allocate a table; further, transmitting according to the downlink communication link includes: the configured table is consulted, and the switching equipment transmits the received data packet through the corresponding port.

In particular implementations, the services include unicast communication services and multicast communication services. Namely, whether multicast communication or unicast communication, the core concept of the table matching-table can be adopted to realize communication in the video network.

As mentioned above, the video network includes an access network portion, in which the master server is a node server and the lower-level network devices include an access switch and a terminal.

For the unicast communication service in the access network, the step of configuring the downlink communication link of the current service by the master server may include the following steps:

and a substep S11, the main control server obtains the downlink communication link information of the current service according to the service request protocol packet initiated by the source terminal, wherein the downlink communication link information includes the downlink communication port information of the main control server and the access switch participating in the current service.

In the substep S12, the main control server sets a downlink port to which a packet of the current service is directed in a packet address table inside the main control server according to the downlink communication port information; and sending a port configuration command to the corresponding access switch according to the downlink communication port information of the access switch.

In sub-step S13, the access switch sets the downstream port to which the packet of the current service is directed in its internal packet address table according to the port configuration command.

For a multicast communication service (e.g., video conference) in the access network, the step of the master server obtaining downlink information of the current service may include the following sub-steps:

in the substep S21, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, wherein the service request protocol packet includes service type information, service content information and an access network address of the target terminal; wherein, the service content information includes a service number.

And a substep S22, the main control server extracts the access network address of the source terminal in a preset content-address mapping table according to the service number.

In the substep of S23, the main control server obtains the multicast address corresponding to the source terminal and distributes the multicast address to the target terminal; and acquiring the communication link information of the current multicast service according to the service type information and the access network addresses of the source terminal and the target terminal.

Based on the above description of the embodiments of the network connection detection method, a method for detecting connection abnormality of a video conference client in a video network is introduced below, as shown in fig. 6, a video conference control client (pamir), a web service client, or a video conference scheduling service (DMS) client is used as the video conference client to connect with a Central Management Service (CMS) in a video network conference management server. After establishing the network connection, the CMS stores the information about the network connection of the videoconference client in the connection queue, and records the connection time. When the videoconference client has data to send or receive with the CMS, the connection time will be updated to the operation time (time to send or receive data). The CMS performs a round robin detection for each network connection. When the difference value between the operation time of a certain network connection and the current time exceeds a set time threshold value, the fact that the network connection has no data communication operation in a time period corresponding to the difference value is indicated, and the network connection is considered to be abnormal. The CMS performs a disconnect network connection process for the abnormal network connection and removes the corresponding relevant information from the connection queue. Meanwhile, the related information of the network connection is printed as log information and recorded in the video networking database.

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 a node server of an embodiment of a video networking system for detecting network connection based on video conferencing according to the present invention is shown, where the system may be applied to a video networking, and the video networking may include: the system comprises a first video network client, a second video network client and a video network node server, wherein the video network node server is communicated with the first video network client and the second video network client respectively, and the video network node server in the system specifically comprises the following modules:

a connection module 701, configured to establish a first network connection between an internet of view node server and a first internet of view client.

A storage module 702, configured to store relevant information of the first network connection in a preset connection queue, where the relevant information of the second network connection between the node server of the video networking and the second video networking client is stored in the connection queue.

The determining module 703 is configured to circularly determine whether the second network connection and the first network connection are overtime according to the relevant information of the second network connection, the relevant information of the first network connection, and the current time.

And the processing module 704 is configured to disconnect the network connection that is timed out and delete information related to the network connection that is timed out from the connection queue.

In a preferred embodiment of the present invention, the information related to the second network connection comprises a second operation time of the second network connection, and the information related to the first network connection comprises a first operation time of the first network connection; a determining module 703, configured to determine whether the second network connection is overtime according to the second operation time and the first current time in a first-in first-out order, and determine whether the first network connection is overtime according to the first operation time and the second current time, where the first current time is the current time for determining whether the second network connection is overtime, and the second current time is the current time for determining whether the first network connection is overtime; the determining module 703 is further configured to determine whether the second network connection is overtime again according to the second operation time and the first current time after determining whether the first network connection is overtime and the second network connection is not overtime, and determine whether the first network connection is overtime again according to the first operation time and the second current time after determining whether the second network connection is overtime and the first network connection is not overtime.

In a preferred embodiment of the present invention, the node server of the visual network further comprises: a transceiving module 705, configured to receive first video conference data from a first video networking client or send second video conference data to the first video networking client after the connection module 701 establishes a first network connection between the video networking node server and the first video networking client; an updating module 706, configured to update the first operation time to a first time when the transceiver module 705 receives the first video conference data or a second time when the transceiver module 705 sends the second video conference data after the storage module 702 stores the relevant information of the first network connection in a preset connection queue; the determining module 703 is configured to determine whether the first network connection is overtime according to the first time and the second current time, or according to the second time and the second current time.

In a preferred embodiment of the present invention, the video network further comprises a video network database, the video network database being in communication with the video network node server; the video networking node server further comprises: a recording module 707, configured to record log information of the network connection that is timed out after the processing module 704 disconnects the network connection that is timed out and deletes relevant information of the network connection that is timed out from the connection queue, and store the log information in the video networking database; the log information comprises one or more of identification information of the first video network client or the second video network client, connection establishment time of the first network connection or the second network connection, data transceiving time of the first network connection or the second network connection, and connection disconnection time of the first network connection or the second network connection.

In a preferred embodiment of the present invention, the video network further comprises a video network terminal, and the video network terminal communicates with the video network node server; the video networking node server further comprises: a transmission module 708, configured to, after the recording module 707 records the log information of the network connection that is overtime, transmit the log information to the video networking terminal according to the downlink communication link configured for the video networking terminal, where the video networking terminal is configured to display and analyze the log information.

For the system 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 method for detecting network connection based on video conference and the system for detecting network connection based on video conference provided by the present invention are introduced in detail, and specific examples are applied in the text to explain the principle and the implementation of the present invention, and the description of the above embodiments 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

1. A method for detecting network connection based on video conference is characterized in that the method is applied to a video network, and the video network comprises the following steps: a first video networking client, a second video networking client and a video networking node server, said video networking node server communicating with said first video networking client and said second video networking client respectively, said method comprising:

after establishing a first network connection between the first video network client and the video network node server, storing relevant information of the first network connection into a preset connection queue, wherein relevant information of a second network connection between the video network node server and the second video network client is stored in the connection queue; the related information of the second network connection comprises second operation time of the second network connection, the related information of the first network connection comprises first operation time of the first network connection, and the first operation time is time when the video conference node server receives video conference data from the first video network client, or the first operation time is time when the video conference node server sends the video conference data to the first video network client;

the video network node server circularly judges whether the second network connection and the first network connection are overtime or not according to the related information of the second network connection, the related information of the first network connection and the current time;

the video network node server disconnects the overtime network connection and deletes the related information of the overtime network connection from the connection queue;

wherein, the video network node server circularly judges whether the second network connection and the first network connection are overtime according to the relevant information of the second network connection, the relevant information of the first network connection and the current time, and the method comprises the following steps:

the video network node server judges whether the second network connection is overtime according to the second operation time and the first current time according to a first-in first-out sequence, and judges whether the first network connection is overtime according to the first operation time and the second current time, wherein the first current time is the current time for judging whether the second network connection is overtime, and the second current time is the current time for judging whether the first network connection is overtime;

the video network node server judges whether the second network connection is overtime again according to the second operation time and the first current time after judging whether the first network connection is overtime and under the condition that the second network connection is not overtime, and judges whether the first network connection is overtime again according to the first operation time and the second current time after judging whether the second network connection is overtime and under the condition that the first network connection is not overtime;

after the information related to the first network connection is stored in a preset connection queue by the video network node server, the method further comprises the following steps:

after receiving first video conference data from the first video network client or after sending second video conference data to the first video network client, the video network node server updates the first operation time to a first time when the first video conference data is received or a second time when the second video conference data is sent;

and the video network node server judges whether the first network connection is overtime or not according to the first time and the second current time or according to the second time and the second current time.

2. The method of claim 1, wherein the video networking further comprises a video networking database in communication with the video networking node server;

after the video networking node server disconnects the network connection which is timed out and deletes the related information of the network connection which is timed out from the connection queue, the method further comprises the following steps:

the video networking node server records the log information of the overtime network connection and stores the log information into the video networking database;

wherein the log information includes one or more of identification information of the first video networking client or the second video networking client, connection establishment time of the first network connection or the second network connection, data transceiving time of the first network connection or the second network connection, and connection disconnection time of the first network connection or the second network connection.

3. The method of claim 2, wherein the video network further comprises a video network terminal, the video network terminal communicating with the video network node server;

after the video networking node server logs information for the network connection that timed out, the method further comprises:

and the video network node server transmits the log information to the video network terminal according to a downlink communication link configured for the video network terminal, and the video network terminal is used for displaying and analyzing the log information.

4. A system for detecting network connection based on video conference, wherein the system is applied in a video network, and the video network comprises: first video networking client, second video networking client and video networking node server, video networking node server respectively with first video networking client and the second video networking client communicates, video networking node server includes:

the connection module is used for establishing a first network connection between the video network node server and the first video network client;

the storage module is used for storing the related information of the first network connection into a preset connection queue, and the related information of a second network connection between the node server of the video network and the second video network client is stored in the connection queue; the related information of the second network connection comprises second operation time of the second network connection, the related information of the first network connection comprises first operation time of the first network connection, and the first operation time is time when the video conference node server receives video conference data from the first video network client, or the first operation time is time when the video conference node server sends the video conference data to the first video network client;

the judging module is used for circularly judging whether the second network connection and the first network connection are overtime or not according to the relevant information of the second network connection, the relevant information of the first network connection and the current time;

the processing module is used for disconnecting the overtime network connection and deleting the related information of the overtime network connection from the connection queue;

the judging module is configured to judge whether the second network connection is overtime according to the second operation time and the first current time in a first-in first-out order, and judge whether the first network connection is overtime according to the first operation time and the second current time, where the first current time is a current time for judging whether the second network connection is overtime, and the second current time is a current time for judging whether the first network connection is overtime;

the judging module is further configured to, after judging whether the first network connection is overtime or not and when the second network connection is not overtime, judge whether the second network connection is overtime again according to the second operation time and the first current time, and after judging whether the second network connection is overtime or not and when the first network connection is not overtime, judge whether the first network connection is overtime again according to the first operation time and the second current time;

the video network node server also comprises a transceiving module and an updating module;

the receiving and sending module is used for receiving first video conference data from the first video networking client or sending second video conference data to the first video networking client after the first network connection between the video networking node server and the first video networking client is established by the connection module;

the updating module is configured to update the first operation time to a first time when the transceiver module receives the first video conference data or a second time when the transceiver module sends the second video conference data after the storage module stores the relevant information of the first network connection into a preset connection queue;

the judging module is configured to judge whether the first network connection is overtime according to the first time and the second current time, or according to the second time and the second current time.

5. The video conferencing-based network connection detection system of claim 4, wherein the video networking further comprises a video networking database in communication with the video networking node server; the video networking node server further comprises:

the recording module is used for recording the log information of the overtime network connection and storing the log information into the video networking database after the processing module disconnects the overtime network connection and deletes the relevant information of the overtime network connection from the connection queue;

6. The system of claim 5, wherein the video networking further comprises a video networking terminal in communication with the video networking node server; the video networking node server further comprises:

and the transmission module is used for transmitting the log information to the video network terminal according to a downlink communication link configured for the video network terminal after the recording module records the overtime log information of the network connection, and the video network terminal is used for displaying and analyzing the log information.