CN109743522B - Communication method and device based on video networking - Google Patents

Abstract

The invention provides a communication method and device based on a video network. The method comprises the following steps: the method comprises the steps that a bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on a bridge number, wherein the application request comprises number information of a second video network terminal input by a user; the bridge server distributes a target internal virtual terminal to the first video network terminal according to the application request, and determines a target external virtual terminal corresponding to the target internal virtual terminal; and the bridging server forwards data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal. According to the invention, the bridging number of the bridging server is not required to be input, the number information of the second video network terminal is input, the operation mode is simpler and more convenient, misoperation can be avoided, and the user experience is improved.

Description

Communication method and device based on video networking

Technical Field

The present invention relates to the field of video networking technologies, and in particular, to a communication method and a communication apparatus based on video networking.

Background

With the rapid development of network technologies, bidirectional communications such as video conferences, video teaching, video phones, and the like are widely popularized in the aspects of life, work, learning, and the like of users. In the process of bidirectional communication, the terminal of the calling party can call the terminal of the called party, communication connection of the two terminals can be established after the terminal of the called party receives the call, and the two terminals can exchange communication data after the connection.

In the prior art, if two terminals belong to different network servers, the terminal of the calling party needs to know the number of the network server corresponding to the terminal of the called party in advance. When a called party terminal is called, not only the number of the called party terminal is input, but also the number of a network server corresponding to the called party terminal is input. Therefore, in the prior art, the operation mode of the user is complicated, misoperation and other conditions are easy to occur, and the user experience is poor.

Disclosure of Invention

In view of the above, embodiments of the present invention are proposed to provide a communication method based on a video network and a corresponding communication apparatus based on a video network that overcome or at least partially solve the above problems.

In order to solve the above problems, an embodiment of the present invention discloses a communication method based on a video network, where the video network includes a video network terminal, a video network server, and a bridge server, where the bridge server includes a plurality of internal virtual terminals and a plurality of external virtual terminals, the internal virtual terminals correspond to the external virtual terminals one to one, and the video network terminal has a bridge number of the bridge server built therein, and the method includes:

the bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number; the application request comprises number information of the second video network terminal input by the user;

the bridge server allocates a target internal virtual terminal to the first video network terminal according to the application request, and determines a target external virtual terminal corresponding to the target internal virtual terminal;

and the bridging server forwards data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

Optionally, the number information includes an area code of the second video network terminal, and the pair of internal virtual terminals has a corresponding area code; the step that the bridge server distributes a target internal virtual terminal to the first video network terminal according to the application request comprises the following steps: the bridging server searches for an internal virtual terminal with the same corresponding area code as that of the second video network terminal; and the bridge server allocates a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal allocated to the first video network terminal.

Optionally, the internal pair of virtual terminals has a user number; after the step that the bridge server allocates a target internal virtual terminal to the first video network terminal according to the application request and determines a target external virtual terminal corresponding to the target internal virtual terminal, the method further comprises the following steps: and the bridge server returns the user number of the target internal virtual terminal to the first video network server through the first video network server.

Optionally, the number information includes a user number and an area code of the second video network terminal; before the step of forwarding, by the bridge server, data between the first video networking terminal and the second video networking terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video networking terminal, the method further includes: the bridge server receives a query request sent by the first video network terminal through the target internal virtual terminal and the first video network server; the bridge server acquires the service state of the second video network terminal through the target external virtual terminal aiming at the query request based on the user number and the area code of the second video network terminal; and the bridge server returns the service state to the first video network terminal through the target internal virtual terminal via the first video network server.

Optionally, the number information includes a user number and an area code of the second video network terminal; before the step of forwarding, by the bridge server, data between the first video networking terminal and the second video networking terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video networking terminal, the method further includes: the bridge server receives a connection request sent by the first video network terminal through the target internal virtual terminal and the first video network server; and the bridge server forwards the connection request to the second video network terminal through the target external virtual terminal based on the user number and the area code of the second video network terminal and a second video network server connected with the second video network terminal so as to establish the connection between the first video network terminal and the second video network terminal.

Optionally, the number information includes a user number and an area code of the second video network terminal; the step of the bridge server forwarding data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal includes: if the bridging server receives first communication data sent by the first video network terminal through the first video network server through the target internal virtual terminal, the bridging server forwards the first communication data to the second video network terminal through a second video network server connected with the second video network terminal through the target external virtual terminal based on the user number and the area code of the second video network terminal; and if the bridge server receives second communication data sent by the second video network terminal through the second video network server through the target external virtual terminal, the bridge server forwards the second communication data to the first video network terminal through the target internal virtual terminal and the first video network server.

On the other hand, the embodiment of the invention also discloses a communication device based on the video network, the video network comprises a video network terminal, a video network server and a bridge server, the bridge server comprises a plurality of internal virtual terminals and a plurality of external virtual terminals, the internal virtual terminals correspond to the external virtual terminals one by one, the video network terminal is internally provided with a bridge number of the bridge server, and the bridge server comprises:

the first receiving module is used for receiving an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number; the application request comprises number information of the second video network terminal input by the user;

the distribution module is used for distributing a target internal virtual terminal to the first video network terminal according to the application request and determining a target external virtual terminal corresponding to the target internal virtual terminal;

and the forwarding module is used for forwarding data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

Optionally, the number information includes an area code of the second video network terminal, and the pair of internal virtual terminals has a corresponding area code; the distribution module includes: the terminal searching unit is used for searching the internal virtual terminal with the corresponding area code being the same as the area code of the second video network terminal; and the terminal distribution unit is used for distributing a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal distributed for the first video network terminal.

Optionally, the internal pair of virtual terminals has a user number; the bridge server further comprises: and the first returning module is used for returning the user number of the target internal virtual terminal to the first video network terminal through the first video network server.

Optionally, the number information includes a user number and an area code of the second video network terminal; the bridge server further comprises: the second receiving module is used for receiving the query request sent by the first video network terminal through the first video network server by the target internal virtual terminal; and the second returning module is used for acquiring the service state of the second video network terminal aiming at the query request based on the user number and the area code of the second video network terminal through the target external virtual terminal, and returning the service state to the first video network terminal through the target internal virtual terminal and the first video network server.

Optionally, the number information includes a user number and an area code of the second video network terminal; the bridge server further comprises: a third receiving module, configured to receive, by the target internal virtual terminal, a connection request sent by the first video network server via the first video network terminal; and the connection module is used for forwarding the connection request to the second video network terminal through a second video network server connected with the second video network terminal based on the user number and the area code of the second video network terminal through the target external virtual terminal so as to establish the connection between the first video network terminal and the second video network terminal.

Optionally, the number information includes a user number and an area code of the second video network terminal; the forwarding module includes: a first forwarding unit, configured to, if first communication data sent by the first video networking terminal via the first video networking server is received by the target internal virtual terminal, forward, by the target external virtual terminal, the first communication data to the second video networking terminal via a second video networking server connected to the second video networking terminal based on a user number and an area code of the second video networking terminal; and the second forwarding unit is configured to forward, by the target internal-to-external virtual terminal, the second communication data to the first video network terminal via the first video network server if the second communication data sent by the second video network terminal via the second video network server is received by the target external-to-external virtual terminal.

The embodiment of the invention is applied to communication based on the video network, the bridge server is arranged in the video network, the bridge server comprises a plurality of internal virtual terminals and a plurality of external virtual terminals, and the internal virtual terminals correspond to the external virtual terminals one by one. The bridge server can be cascaded with a plurality of independent video network servers to serve as a bridge for communication among different video network servers, and the video network terminal is internally provided with a bridge number of the bridge server. The method comprises the steps that a bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on a bridge number, wherein the application request comprises number information of a second video network terminal; the bridge server distributes a target internal virtual terminal to the first video network terminal according to the application request, and determines a target external virtual terminal corresponding to the target internal virtual terminal; and the bridging server forwards data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal. Therefore, in the embodiment of the invention, the communication between the video networking terminals under different video networking servers can be realized through the bridging server, and the bridging number of the bridging server is arranged in the video networking terminal, so that the first video networking terminal does not need to input the bridging number of the bridging server, and the number information of the second video networking terminal can be input, the operation mode is simpler and more convenient, misoperation can be avoided, and the user experience is improved.

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 steps of a method for video-networking-based communication according to a first embodiment of the present invention;

FIG. 6 is a flowchart illustrating steps of a communication method based on video networking according to a second embodiment of the present invention;

fig. 7 is a block diagram of a communication apparatus based on video network according to a third embodiment of 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.

1. Video networking device classification

1.1 devices in the video network of the embodiment of the present invention can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).

The specific hardware structure of each access network device is as follows:

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;

wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

The switching engine module 303 polls all packet buffer queues, which in this embodiment of the present invention is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.

The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the 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 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 data packets, and is 64 bytes if the data packet is a variety of protocol packets, and is 32+1024 or 1056 bytes if the data packet is a unicast data packet, of course, the length is not limited to the above 2 types;

the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.

2.2 metropolitan area network packet definition

The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present invention: a label to uniquely describe a metropolitan area network device.

In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.

As shown in the following table, the data packet of the metro network mainly includes the following parts:

DA

SA

Reserved

label (R)

Payload

CRC

Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.

Based on the characteristics of the video network, the communication scheme based on the video network provided by the embodiment of the invention follows the protocol of the video network, and simplifies the communication mode between video network terminals.

Example one

The embodiment of the invention mainly introduces a communication method based on video networking. The video network comprises a video network terminal, a video network server and a bridging server. One bridging server can be connected with a plurality of video network servers, and one video network server can be connected with a plurality of video network terminals.

The video network server is a core server in the video network, and devices (such as video network terminals and the like) accessing the video network are registered in the video network server in advance to perform video network services.

The video network terminal is a service landing device on the video network, and an actual participant or a server of the video network service. The video network terminal can be developed based on a Ti816x chip, is positioned as a high-end video network terminal development platform, can support various functions in the video network, supports full-high-definition audio and video coding and decoding by hardware, and has superior multi-channel coding and decoding capability and a stable system. The video network terminal can comprise various conference set-top boxes, video telephone set-top boxes, operation trial set-top boxes and the like. The terminal of the video network is registered on the server of the video network, thereby accessing to the video network and carrying out the video network service. After registration, the video network server may allocate information such as a user number, a Media Access Control (MAC) address, and the like to the video network terminal.

The bridge server can make up the defect that the video network server which is developed based on 16 bits and defined to be 0xFFFF (65535 numbers) does not meet the use requirement of actual large data volume. The bridge server can use bridge software, and can realize operations such as data forwarding between different video network terminals. The bridge server may include a plurality of virtual terminals, which may be divided into a plurality of internal virtual terminals and a plurality of external virtual terminals, where the internal virtual terminals correspond to the external virtual terminals one to one. Each virtual terminal in the bridging server can simulate the function of the video network terminal, and each virtual terminal registers on the video network server, so that the virtual terminal is accessed into the video network and can perform video network service. After registration, the video network server can allocate information such as a user number, a video network MAC address and the like to the virtual terminal.

The video network server and the video network terminal can perform bidirectional interaction based on a video network protocol. The video network server and the bridging server can perform bidirectional interaction based on a video network protocol.

The communication method based on the video network can be applied to the communication processes of video telephone, video conference, on-line live broadcast, multi-picture monitoring play, IPTV (Internet protocol television), remote medical consultation, on-line education and the like based on the video network. Hereinafter, a communication procedure of a video telephone based on a video network will be described as an example.

In the communication process of the video telephone based on the video network, the video network terminal can be used as a terminal of a calling party and a terminal of a called party. In the embodiment of the invention, a first video network terminal is taken as a video network terminal of a calling party, and a second video network terminal is taken as a video network terminal of a called party for example.

Referring to fig. 5, a flowchart illustrating steps of a communication method based on a video network according to a first embodiment of the present invention is shown.

The communication method based on the video network of the embodiment of the invention can comprise the following steps:

step 501, a bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number.

In the embodiment of the invention, the first video network terminal and the second video network terminal are connected to different video network servers, so that the first video network terminal and the second video network terminal can be connected through the bridge server.

If the first video network terminal wants to communicate with the second video network terminal, the first video network terminal can send an application request to the bridge server so as to apply for an internal virtual terminal from the bridge server.

In the embodiment of the invention, the user of the first video network terminal can input the number information of the second video network terminal, and the first video network terminal can acquire the number information of the second video network terminal input by the user. The video network terminal is internally provided with a bridge number of a bridge server connected with the video network terminal, and the first video network terminal can also acquire the bridge number of the built-in bridge server. The first video network terminal may generate an application request based on a video network protocol, where the application request may include number information of the second video network terminal, and of course, may also include information such as a bridge number of a bridge server built in the first video network terminal, a user number of the first video network terminal, and the like.

The first video network terminal can send the application request to the bridge server through the first video network server connected with the first video network terminal based on the bridge number. For example, a first video network terminal sends an application request to a first video network server based on a video network protocol; the first video network server can determine a bridge server according to the bridge number and sends an application request to the bridge server according to the bridge number based on the video network protocol.

Step 502, the bridge server allocates a target internal virtual terminal to the first video network terminal according to the application request, and determines a target external virtual terminal corresponding to the target internal virtual terminal.

After receiving the application request, the bridge server may analyze the application request to obtain an operation code included therein as an operation code representing the virtual terminal for application, and obtain number information of the second video network terminal included therein.

The bridge server can allocate a target internal virtual terminal to the first video network terminal according to the operation code and the number information of the second video network terminal, and determine a target external virtual terminal corresponding to the target internal virtual terminal.

In the embodiment of the invention, each virtual terminal in the bridging server has information such as a corresponding area code, a user number, a video network MAC address and the like, wherein a plurality of different virtual terminals can have the same corresponding area code. The number information of the second video network terminal can comprise information such as a user number and an area code of the second video network terminal. Therefore, the step of the bridge server allocating a target internal pair virtual terminal to the first video network terminal according to the application request may include: the bridging server searches for an internal virtual terminal with the same area code as that of the second video network terminal; and the bridging server allocates a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal allocated to the first video network terminal.

Step 503, the bridge server forwards data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

After the target internal virtual terminal and the target external virtual terminal are determined, the bridge server can use the target internal virtual terminal and the target external virtual terminal as a bridge for connecting the first video network terminal and the second video network terminal. The subsequent bridging server can forward data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

According to the embodiment of the invention, the communication between the video network terminals under different video network servers can be realized through the bridging server, and the bridging number of the bridging server is arranged in the video network terminal, so that the first video network terminal does not need to input the bridging number of the bridging server, and only the number information of the second video network terminal is input, the operation mode is simpler and more convenient, the misoperation can be avoided, and the user experience is improved.

Example two

Referring to fig. 6, a flowchart illustrating steps of a communication method based on the internet of vision according to a second embodiment of the present invention is shown.

The communication method based on the video network of the embodiment of the invention can comprise the following steps:

step 601, the bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number.

Step 601 is the same as step 501, and reference may be made to the related description of step 501, and the embodiment of the present invention is not discussed in detail here.

Step 602, the bridge server allocates a target internal virtual terminal to the first video network terminal according to the application request, and determines a target external virtual terminal corresponding to the target internal virtual terminal.

Step 602 is the same as step 502 described above, and reference is made to the related description of step 502 described above specifically, and the embodiment of the present invention is not discussed in detail herein.

Step 603, the bridge server returns the user number of the target internal virtual terminal to the first video network server through the first video network server.

After determining the target pair of virtual terminals, the bridge server may return the user number of the target pair of virtual terminals to the first video network terminal via the first video network server. The bridge server may generate a data packet carrying the user number of the target internal virtual terminal based on the video networking protocol, and of course, the data packet may further include information such as the user number of the first video networking terminal. The bridging server can send the data packet to the first video network server based on the video network protocol; the first video network server can determine the first video network terminal according to the user number of the first video network terminal, and sends the data packet to the first video network terminal according to the user number of the first video network terminal based on the video network protocol.

Of course, after the target external virtual terminal is determined, the bridge server may also return the user number of the target external virtual terminal to the second video network terminal through the second video network server connected to the second video network terminal. The bridge server may generate a data packet carrying the user number of the target external virtual terminal based on the video networking protocol, and of course, the data packet may further include information such as the user number of the second video networking terminal. The bridging server can send the data packet to a second video network server based on the video network protocol; the second video network server can determine the second video network terminal according to the user number of the second video network terminal, and sends the data packet to the second video network terminal according to the user number of the second video network terminal based on the video network protocol.

Step 604, the bridge server receives, through the target internal virtual terminal, the query request sent by the first video network terminal through the first video network server.

If the first video network terminal wants to perform video telephone with the second video network terminal, the service state of the second video network terminal can be inquired first. The first video network terminal can send a query request to the bridge server so as to query the service state of the second video network terminal by the bridge server.

In the embodiment of the invention, the first video network terminal can generate the query request based on the video network protocol, and the query request is sent to the target internal virtual terminal in the bridge server through the first video network server based on the user number of the target internal virtual terminal.

The first video network terminal sends the query request to a first video network server based on a video network protocol; the first video network server can determine the target internal virtual terminal according to the user number of the target internal virtual terminal, and sends the query request to the target internal virtual terminal according to the user number of the target internal virtual terminal based on the video network protocol.

Step 605, the bridge server obtains the service state of the second video network terminal based on the user number and the area code of the second video network terminal aiming at the query request through the target external virtual terminal, and returns the service state to the first video network terminal through the target internal virtual terminal through the first video network server.

After receiving the query request, the bridge server may parse the query request to obtain an operation code included therein as an operation code representing a query service state. The bridge server can acquire the service state of the second video network terminal through the target external virtual terminal according to the operation code and based on the user number and the area code of the second video network terminal.

The bridge server can send the information such as the query request and the user number of the second video network terminal to the second video network server through the target external virtual terminal based on the video network protocol; and the second video network server acquires the service state of the second video network terminal according to the user number of the second video network terminal, and returns the service state of the second video network terminal to the target external virtual terminal in the bridging server according to the user number of the target external virtual terminal based on the video network protocol.

After the service state of the second video network terminal is obtained, the bridging server returns the service state to the first video network terminal through the first video network server through the target internal virtual terminal. The bridging server can generate a data packet carrying the service state of the second video network terminal based on the video network protocol through the target internal virtual terminal, and send the data packet to the first video network server based on the video network protocol; the first video network server can send the data packet to the first video network terminal according to the user number of the first video network terminal based on the video network protocol.

Step 606, the bridge server receives the connection request sent by the first video network terminal through the target internal virtual terminal and the first video network server.

After the first video network terminal receives the service state of the second video network terminal, if the service state is idle, the first video network terminal can send a connection request to the bridge server, so that the bridge server establishes communication connection between the first video network terminal and the second video network terminal.

In the embodiment of the invention, the first video network terminal can generate a connection request based on a video network protocol, and the connection request is sent to the target internal virtual terminal in the bridge server through the first video network server based on the user number of the target internal virtual terminal.

The first video network terminal sends a connection request to a first video network server based on a video network protocol; the first video network server can determine the target internal virtual terminal according to the user number of the target internal virtual terminal, and sends the connection request to the target internal virtual terminal according to the user number of the target internal virtual terminal based on the video network protocol.

Step 607, the bridge server forwards the connection request to the second video network terminal through the target external virtual terminal via the second video network server connected with the second video network terminal based on the user number and the area code of the second video network terminal, so as to establish the connection between the first video network terminal and the second video network terminal.

And after receiving the connection request, the bridge server analyzes the connection request to obtain the operation code which is contained in the connection request and is used for representing the connection request. The bridge server may forward the connection request to the second video-networking terminal through the second video-networking server by the target external virtual terminal according to the operation code. The bridging server can send the connection request and information such as the user number and the area code of the second video network terminal to the second video network server through the target external virtual terminal based on the video network protocol; and the second video network server forwards the connection request to the second video network terminal according to the user number and the area code of the second video network terminal based on the video network protocol.

The second video network terminal may return a connection acceptance response to the bridge server if the second video network terminal chooses to accept the connection. The second video network terminal can generate a connection receiving response based on the video network protocol, and send the connection receiving response to the target external virtual terminal in the bridge server through the second video network server based on the user number of the target external virtual terminal. The second video network terminal sends the connection receiving response to a second video network server based on the video network protocol; the second video network server can determine the target external virtual terminal according to the user number of the target external virtual terminal, and sends the connection receiving response to the target external virtual terminal according to the user number of the target external virtual terminal based on the video network protocol. If the second video network terminal selects to reject the connection, the connection rejection response can be returned to the bridge server in the same way as the connection acceptance response is returned.

If the bridging server receives the connection accepting response, the bridging server allows the connection between the first video network terminal and the second video network terminal to be established, and returns the connection accepting response to the first video network terminal; and if the connection rejection response is received, rejecting to establish the connection between the first video network terminal and the second video network terminal, and returning the connection rejection response to the first video network terminal.

Step 608, the bridge server performs data forwarding between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

After the first video network terminal and the second video network terminal are connected, the bridging server can forward data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal.

For the condition that the first video network terminal sends data to the second video network terminal, if the bridging server receives first communication data sent by the first video network server through the target internal virtual terminal based on the user number of the target internal virtual terminal through the target internal virtual terminal, the first communication data is forwarded to the second video network terminal through the target external virtual terminal based on the user number and the area code of the second video network terminal through the second video network server. For the specific process, reference is made to the detailed description of the relevant parts above, and the embodiments of the present invention will not be discussed in detail here.

For the condition that the second video network terminal sends data to the first video network terminal, if the bridging server receives second communication data sent by the second video network terminal through the target external virtual terminal based on the user number of the target external virtual terminal and the second video network server through the target external virtual terminal, the second communication data is forwarded to the first video network terminal through the target internal virtual terminal and the first video network server. For the specific process, reference is made to the detailed description of the relevant parts above, and the embodiments of the present invention will not be discussed in detail here.

In a preferred embodiment, for the case that the video network server sends data or a request to the video network terminal, the video network server may send the corresponding data or request to the video network terminal according to a downlink communication link configured for the video network terminal.

In practical applications, the video network is a network with a centralized control function, and includes a master 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 to configure a table for a downlink communication link of a current service by notifying a switching device by the master control server, and then transmit a data packet based on the configured table.

Namely, the communication method in the video network includes:

and the master control server configures the downlink communication link of the current service.

And transmitting the data packet of the current service sent by the source terminal to the target terminal according to the downlink communication link.

In the embodiment of the present invention, configuring the downlink communication link of the current service includes: and informing the switching equipment related to the downlink communication link of the current service to allocate the 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 of the main control server; 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 sub-step S21, the main control server obtains a service request protocol packet initiated by the target terminal and applying for the multicast communication service, where 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.

The embodiment of the invention can solve the problem that the two independent video network environments use the bridging server to communicate, and the bridging number of the bridging server is not required to be input during dialing, thereby shortening the length of the number input by the user and simplifying the operation of the user. The bridge server uses the video networking protocol in each node communication, and the security of the video networking protocol structure ensures that the network cannot be attacked.

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.

EXAMPLE III

Referring to fig. 7, a block diagram of a communication apparatus based on a video network according to a third embodiment of the present invention is shown. The video network comprises a video network terminal, a video network server and a bridge server, wherein the bridge server comprises a plurality of internal virtual terminals and a plurality of external virtual terminals, the internal virtual terminals correspond to the external virtual terminals one to one, and the video network terminal is internally provided with a bridge number of the bridge server.

The communication device based on the video network of the embodiment of the invention can comprise the following modules positioned in the bridging server:

the bridge server includes:

a first receiving module 701, configured to receive an application request sent by a first video network terminal via a first video network server connected to the first video network terminal based on the bridge number; the application request comprises number information of the second video network terminal input by the user;

an allocating module 702, configured to allocate a target internal virtual terminal to the first video network terminal according to the application request, and determine a target external virtual terminal corresponding to the target internal virtual terminal;

a forwarding module 703, configured to forward data between the first video networking terminal and the second video networking terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video networking terminal.

In an optional embodiment, the number information includes an area code of the second video network terminal, and the internal pair of virtual terminals has a corresponding area code. The distribution module includes: the terminal searching unit is used for searching the internal virtual terminal with the corresponding area code being the same as the area code of the second video network terminal; and the terminal distribution unit is used for distributing a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal distributed for the first video network terminal.

In an alternative embodiment, the intra-pair virtual terminal has a subscriber number. The bridge server further comprises: and the first returning module is used for returning the user number of the target internal virtual terminal to the first video network terminal through the first video network server.

In an optional embodiment, the number information includes a subscriber number and an area code of the second internet of view terminal. The bridge server further comprises: the second receiving module is used for receiving the query request sent by the first video network terminal through the first video network server by the target internal virtual terminal; and the second returning module is used for acquiring the service state of the second video network terminal aiming at the query request based on the user number and the area code of the second video network terminal through the target external virtual terminal, and returning the service state to the first video network terminal through the target internal virtual terminal and the first video network server.

In an optional embodiment, the number information includes a subscriber number and an area code of the second internet of view terminal. The bridge server further comprises: a third receiving module, configured to receive, by the target internal virtual terminal, a connection request sent by the first video network server via the first video network terminal; and the connection module is used for forwarding the connection request to the second video network terminal through a second video network server connected with the second video network terminal based on the user number and the area code of the second video network terminal through the target external virtual terminal so as to establish the connection between the first video network terminal and the second video network terminal.

In an optional embodiment, the number information includes a subscriber number and an area code of the second internet of view terminal. The forwarding module includes: a first forwarding unit, configured to, if first communication data sent by the first video networking terminal via the first video networking server is received by the target internal virtual terminal, forward, by the target external virtual terminal, the first communication data to the second video networking terminal via a second video networking server connected to the second video networking terminal based on a user number and an area code of the second video networking terminal; and the second forwarding unit is configured to forward, by the target internal-to-external virtual terminal, the second communication data to the first video network terminal via the first video network server if the second communication data sent by the second video network terminal via the second video network server is received by the target external-to-external virtual terminal.

According to the embodiment of the invention, the communication between the video network terminals under different video network servers can be realized through the bridging server, and the bridging number of the bridging server is arranged in the video network terminal, so that the first video network terminal does not need to input the bridging number of the bridging server, and only the number information of the second video network terminal is input, the operation mode is simpler and more convenient, the misoperation can be avoided, and the user experience is improved.

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowchart illustrations and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The foregoing detailed description is directed to a communication method and a communication apparatus based on video networking, and the principles and embodiments of the present invention are explained by applying specific examples, and the descriptions of the above examples are only used to help understand the method and the core ideas 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 (12)

1. A communication method based on video network is characterized in that the video network comprises a video network terminal, a video network server and a bridge server, the bridge server comprises a plurality of internal virtual terminals and a plurality of external virtual terminals, each virtual terminal has a corresponding area code, a plurality of different virtual terminals can have the same corresponding area code, the internal virtual terminals and the external virtual terminals are in one-to-one correspondence, and the video network terminal is internally provided with the bridge number of the bridge server, the method comprises the following steps:

the bridge server receives an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number; the application request comprises number information of a second video network terminal input by a user, wherein the number information comprises an area code of the second video network terminal;

the bridge server allocates a target internal virtual terminal to the first video network terminal according to the area code of the second video network terminal, and determines a target external virtual terminal corresponding to the target internal virtual terminal;

and the bridging server forwards data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

2. The method according to claim 1, wherein the step of the bridge server assigning a target pair of internal virtual terminals to the first video network terminal according to the area code of the second video network terminal comprises:

the bridging server searches for an internal virtual terminal with the same corresponding area code as that of the second video network terminal;

and the bridge server allocates a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal allocated to the first video network terminal.

3. The method of claim 1, wherein the intra-pair virtual terminal has a subscriber number;

after the step that the bridge server allocates a target internal virtual terminal to the first video network terminal according to the application request and determines a target external virtual terminal corresponding to the target internal virtual terminal, the method further comprises the following steps:

and the bridge server returns the user number of the target internal virtual terminal to the first video network server through the first video network server.

4. The method of claim 1, wherein the number information comprises a subscriber number and an area code of the second video network terminal;

before the step of forwarding, by the bridge server, data between the first video networking terminal and the second video networking terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video networking terminal, the method further includes:

the bridge server receives a query request sent by the first video network terminal through the target internal virtual terminal and the first video network server;

the bridge server acquires the service state of the second video network terminal through the target external virtual terminal aiming at the query request based on the user number and the area code of the second video network terminal;

and the bridge server returns the service state to the first video network terminal through the target internal virtual terminal via the first video network server.

5. The method of claim 1, wherein the number information comprises a subscriber number and an area code of the second video network terminal;

before the step of forwarding, by the bridge server, data between the first video networking terminal and the second video networking terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video networking terminal, the method further includes:

the bridge server receives a connection request sent by the first video network terminal through the target internal virtual terminal and the first video network server;

and the bridge server forwards the connection request to the second video network terminal through the target external virtual terminal based on the user number and the area code of the second video network terminal and a second video network server connected with the second video network terminal so as to establish the connection between the first video network terminal and the second video network terminal.

6. The method of claim 1, wherein the number information comprises a subscriber number and an area code of the second video network terminal;

the step of the bridge server forwarding data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal includes:

if the bridging server receives first communication data sent by the first video network terminal through the first video network server through the target internal virtual terminal, the bridging server forwards the first communication data to the second video network terminal through a second video network server connected with the second video network terminal through the target external virtual terminal based on the user number and the area code of the second video network terminal;

and if the bridge server receives second communication data sent by the second video network terminal through the second video network server through the target external virtual terminal, the bridge server forwards the second communication data to the first video network terminal through the target internal virtual terminal and the first video network server.

7. A communication apparatus based on a video network, comprising a video network terminal, a video network server and a bridge server in the video network, wherein the bridge server comprises a plurality of internal virtual terminals and a plurality of external virtual terminals, each virtual terminal has a corresponding area code, a plurality of different virtual terminals can have the same corresponding area code, the internal virtual terminals correspond to the external virtual terminals one-to-one, the video network terminal has a bridge number of the bridge server built therein, and the bridge server comprises:

the first receiving module is used for receiving an application request sent by a first video network terminal through a first video network server connected with the first video network terminal based on the bridge number; the application request comprises number information of a second video network terminal input by a user, wherein the number information comprises an area code of the second video network terminal;

the distribution module is used for distributing a target internal virtual terminal for the first video network terminal according to the area code of the second video network terminal and determining a target external virtual terminal corresponding to the target internal virtual terminal;

and the forwarding module is used for forwarding data between the first video network terminal and the second video network terminal through the target internal virtual terminal and the target external virtual terminal based on the number information of the second video network terminal.

8. The apparatus of claim 7, wherein the assignment module comprises:

the terminal searching unit is used for searching the internal virtual terminal with the corresponding area code being the same as the area code of the second video network terminal;

and the terminal distribution unit is used for distributing a free internal virtual terminal from the searched internal virtual terminals to serve as a target internal virtual terminal distributed for the first video network terminal.

9. The apparatus of claim 7, wherein the intra-pair virtual terminal has a subscriber number; the bridge server further comprises:

and the first returning module is used for returning the user number of the target internal virtual terminal to the first video network terminal through the first video network server.

10. The apparatus of claim 7, wherein the number information comprises a subscriber number and an area code of the second video network terminal; the bridge server further comprises:

the second receiving module is used for receiving the query request sent by the first video network terminal through the first video network server by the target internal virtual terminal;

and the second returning module is used for acquiring the service state of the second video network terminal aiming at the query request based on the user number and the area code of the second video network terminal through the target external virtual terminal, and returning the service state to the first video network terminal through the target internal virtual terminal and the first video network server.

11. The apparatus of claim 7, wherein the number information comprises a subscriber number and an area code of the second video network terminal; the bridge server further comprises:

a third receiving module, configured to receive, by the target internal virtual terminal, a connection request sent by the first video network server via the first video network terminal;

and the connection module is used for forwarding the connection request to the second video network terminal through a second video network server connected with the second video network terminal based on the user number and the area code of the second video network terminal through the target external virtual terminal so as to establish the connection between the first video network terminal and the second video network terminal.

12. The apparatus of claim 7, wherein the number information comprises a subscriber number and an area code of the second video network terminal; the forwarding module includes:

a first forwarding unit, configured to, if first communication data sent by the first video networking terminal via the first video networking server is received by the target internal virtual terminal, forward, by the target external virtual terminal, the first communication data to the second video networking terminal via a second video networking server connected to the second video networking terminal based on a user number and an area code of the second video networking terminal;

and the second forwarding unit is configured to forward, by the target internal-to-external virtual terminal, the second communication data to the first video network terminal via the first video network server if the second communication data sent by the second video network terminal via the second video network server is received by the target external-to-external virtual terminal.

Images