CN109361891B

CN109361891B - Data synchronization method and system in hierarchical conference

Info

Publication number: CN109361891B
Application number: CN201811169507.4A
Authority: CN
Inventors: 袁占涛; 王艳辉; 亓娜; 赵振华
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2018-10-08
Filing date: 2018-10-08
Publication date: 2021-02-12
Anticipated expiration: 2038-10-08
Also published as: CN109361891A

Abstract

The embodiment of the invention discloses a data synchronization method and a data synchronization system in a hierarchical conference, which are applied to a video network, wherein the method comprises the following steps: the first conference management platform receives a data synchronization request sent by the first conference scheduling platform, wherein the data synchronization request comprises a conference area where the requested data are synchronized; when the conference area is determined not to be the local area, determining a second conference management platform corresponding to the conference area, and sending the data synchronization request to the second conference management platform; after receiving the data synchronization request, the second conference management platform sends the data requested to be synchronized to the first conference management platform; the first conference management platform sends the requested synchronized data to the first conference scheduling platform. The embodiment of the invention realizes that the data to be synchronized is automatically acquired through the corresponding conference management platform, reduces frequent operations among users, and greatly improves the simplicity of user operation.

Description

Data synchronization method and system in hierarchical conference

Technical Field

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

Background

With the development of video networking, the pressure load of each video networking service is greater, and regional communication is realized in part of regions, so that the communication between the regions and the national network becomes the demand of the current market.

The national video networking interconnection and intercommunication can be realized through the communication mode of the hierarchical conference control terminal, however, the equipment list in each conference can only exist in the local conference, which terminal equipment participates in the conference of the other party cannot be checked in real time, only manual inquiry can be carried out through the communication tool of the third party, and the operation is complicated.

Disclosure of Invention

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

The embodiment of the invention discloses a data synchronization method in a hierarchical conference, which is applied to video networking, wherein the hierarchical conference comprises a first conference belonging to a first video networking server and a second conference belonging to a second video networking server, the first video networking server and the second video networking server are connected through a hierarchical conference control terminal, the first conference in the first video networking server is managed by a first conference management platform through a first conference scheduling platform, and the second conference in the second video networking server is managed by a second conference management platform through a second conference scheduling platform, the method comprises the following steps:

the first conference management platform receives a data synchronization request sent by the first conference scheduling platform, wherein the data synchronization request comprises a conference area where the requested data are synchronized;

when the first conference management platform determines that the conference area is not the local area, determining a second conference management platform corresponding to the conference area, and sending the data synchronization request to the second conference management platform;

after receiving the data synchronization request, the second conference management platform sends the data requested to be synchronized to the first conference management platform;

the first conference management platform sends the requested synchronized data to the first conference scheduling platform.

Optionally, the method further includes:

the first conference management platform receives the device list data of the first conference uploaded by the first conference scheduling platform;

and the second conference management platform receives the equipment list data of the second conference uploaded by the second conference scheduling platform.

Optionally, the method further includes:

and when the first conference management platform determines that the conference area is the local area, the first conference management platform sends the requested synchronous data to the first conference scheduling platform.

Optionally, when determining that the conference area is not the local area, the first conference management platform determines a second conference management platform corresponding to the conference area, and sends the data synchronization request to the second conference management platform, including:

and when the first conference management platform determines that the conference area is not the local area, determining a second conference management platform corresponding to the conference area through area addressing, and sending the data synchronization request to the second conference management platform.

Optionally, the method further includes:

when the first conference is a superior conference of the second conference, the first conference management platform synchronizes the equipment list data of the second conference at regular time; or

And when the second conference is a superior conference of the first conference, the second conference management platform synchronizes the equipment list data of the first conference at regular time.

The embodiment of the invention also provides a data synchronization system in a hierarchical conference, which is applied to video networking, wherein the hierarchical conference comprises a first conference belonging to a first video networking server and a second conference belonging to a second video networking server, the first video networking server and the second video networking server are connected through a hierarchical conference control terminal, the first conference in the first video networking server is managed by a first conference management platform through a first conference scheduling platform, and the second conference in the second video networking server is managed by a second conference management platform through a second conference scheduling platform, and the system comprises:

a data synchronization request receiving module configured in the first conference management platform and configured to receive a data synchronization request sent by the first conference scheduling platform, where the data synchronization request includes a conference area where data requested to be synchronized is located;

a data synchronization request sending module configured in the first conference management platform, and configured to determine, when it is determined that the conference area is not the local area, a second conference management platform corresponding to the conference area, and send the data synchronization request to the second conference management platform;

the first data sending module is configured in the second conference management platform and used for sending the data requested to be synchronized to the first conference management platform after receiving the data synchronization request;

and the second data sending module is configured in the first conference management platform and used for sending the requested synchronous data to the first conference scheduling platform.

Optionally, the method further includes:

a first device list data receiving module, configured in the first conference management platform, for receiving the device list data of the first conference uploaded by the first conference scheduling platform;

and the second equipment list data receiving module is configured in the second conference management platform and is used for receiving the equipment list data of the second conference uploaded by the second conference scheduling platform.

Optionally, the method further includes:

and the third data sending module is configured in the first conference management platform and is used for sending the data requested to be synchronized to the first conference scheduling platform when the conference area is determined to be the local area.

Optionally, the data synchronization request sending module is specifically configured to:

and when the conference area is determined not to be the local area, determining a second conference management platform corresponding to the conference area through area addressing, and sending the data synchronization request to the second conference management platform.

Optionally, the method further includes:

the first timing synchronization module is configured in the first conference management platform and used for timing and synchronizing the equipment list data of the second conference when the first conference is a superior conference of the second conference; or

And the second timing synchronization module is configured in the second conference management platform and is used for timing synchronization of the equipment list data of the first conference when the second conference is a superior conference of the first conference.

The embodiment of the invention has the following advantages:

in the embodiment of the invention, after the first conference management platform receives the data synchronization request sent by the corresponding first conference scheduling platform, if the conference area where the requested data in the data synchronization request is located is not the local area, the second conference management platform corresponding to the conference area is determined, the data synchronization request is sent to the second conference management platform, and the second conference management platform returns the requested data for synchronization, so that a user does not need to acquire the data in the hierarchical conference in a communication mode other than the hierarchical conference when needing to synchronize the data in the hierarchical conference, the automatic acquisition of the data to be synchronized through the corresponding conference management platform is realized, frequent operations among the users are reduced, and the convenience of user operation is greatly 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. 5a is a flow chart of steps of an embodiment of a method for data synchronization in a hierarchical conference of the present invention;

FIG. 5b is a diagram of an exemplary network architecture of a hierarchical conferencing environment in the present invention;

fig. 6 is a block diagram of an embodiment of the data synchronization system in a hierarchical conference according to the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

The video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.

The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.

To better understand the embodiments of the present invention, the following description refers to the internet of view:

some of the technologies applied in the video networking are as follows:

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.

Server Technology (Server Technology)

The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.

Storage Technology (Storage Technology)

The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.

Network Security Technology (Network Security Technology)

The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.

Service Innovation Technology (Service Innovation Technology)

The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.

Networking of the video network is as follows:

the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.

As shown in fig. 1, the video network is divided into an access network and a metropolitan network.

The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.

The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.

Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.

The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.

Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.

The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.

Video networking device classification

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

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

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

a node server:

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

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

The access switch:

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

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

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

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

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

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

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

Ethernet protocol conversion gateway：

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

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

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

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

2.2 metropolitan area network packet definition

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

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

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

DA

SA

Reserved

label (R)

Payload

CRC

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

Based on the characteristics of the video networking, one of the core concepts of the embodiments of the present invention is provided, where the first conference management platform receives a data synchronization request sent by the first conference scheduling platform, and when it is determined that a conference area where requested synchronized data included in the data synchronization request is sent is not a local area, determines a second conference management platform corresponding to the conference area, and sends the data synchronization request to the second conference management platform, and the second conference management platform returns the requested synchronized data and sends the requested synchronized data to the first conference scheduling platform, so that automatic data synchronization is achieved, and a user does not need to communicate in other communication manners to obtain synchronized data, thereby greatly improving the convenience of operation.

Referring to fig. 5a, a flow chart of steps of an embodiment of a method for data synchronization in hierarchical conferencing according to the present invention is shown, which can be applied in a video network.

In a hierarchical conference environment, one or more conference management platforms are deployed, each video networking server needs to be deployed in a partner with the conference management platform, then each conference is managed through the conference management platform, and partial conference data is transmitted through the conference management platform. The conference management platform is an application platform for conference reservation, audit and conference data management. Fig. 5b shows an exemplary network architecture diagram of a hierarchical conference environment in the present invention, in fig. 5b, taking a conference belonging to two video networks respectively as an example, a conference management platform is deployed corresponding to each video network server respectively, the first conference management platform manages the conference belonging to the first video network server, the second conference management platform manages the conference belonging to the second video network server, the first video network server and the second video network server are connected through a hierarchical conference control terminal, the first conference belonging to the first video network server and the second conference belonging to the second video network server are hierarchical conferences, and the video conferences are performed through the hierarchical conference control terminal. It should be noted that the first conference and the second conference given here are only examples, and may also include conferences belonging to more other video networking servers, and as long as the conference management platform is deployed in a partner manner, data synchronization in a hierarchical conference may be achieved.

The hierarchical conference control terminal is a hardware terminal capable of communicating across a plurality of video networks. A hierarchical conference may be two (or more) conferences created separately within two (or more) video networks, the two (or more) conferences communicating through a hierarchical conference terminal. The participants of the conference refer to the roles of the entity terminals participating in the conference.

The method specifically comprises the following steps:

step 501, a first conference management platform receives a data synchronization request sent by a first conference scheduling platform, where the data synchronization request includes a conference area where data requested to be synchronized is located.

The conference scheduling platform is mainly realized by installing conference scheduling software, such as PAMIR software, in a computer and other terminals. The first conference management platform manages conferences (including the first conference) belonging to the first video networking server.

When the first conference and the second conference carry out video communication, if a user of the first conference wants to synchronize data in the second conference, an instruction of data synchronization can be sent to the first conference scheduling platform through an operation device such as a remote controller, after the first conference scheduling platform receives the instruction of data synchronization of the user, a data synchronization request is sent to the first conference management platform through the internet, and the first conference management platform can receive the data synchronization request sent by the first conference scheduling platform through the internet.

The data requested to be synchronized by the data synchronization request may be device list data in the second conference, the device list data of one conference is list data of participating devices participating in the conference, and the participating devices may be, for example, video networking terminals and microphones. The video network terminal may be a Set Top Box (STB), commonly referred to as a Set Top Box or Set Top Box, which is a device for connecting a tv Set to an external signal source, and converts a compressed digital signal into tv content for display on the tv Set.

Step 502, when the first conference management platform determines that the conference area is not the local area, the first conference management platform determines a second conference management platform corresponding to the conference area, and sends the data synchronization request to the second conference management platform.

After receiving a data synchronization request sent by a first conference scheduling platform through the internet, a first conference management platform acquires a conference area where data to be synchronized in the data synchronization request is located, judges whether the conference area is the local area, and if the conference area is not the local area, queries a pre-established corresponding relationship between the conference area and the conference management platform to obtain a second conference management platform corresponding to the conference area. And the first conference management platform sends the data synchronization request to the second conference management platform through the Internet, and the second conference management platform acquires the data requested to be synchronized and returns the data. And the second conference management platform manages the conference belonging to the second video network server.

The first conference and the second conference may be superordinate conferences and subordinate conferences, for example, the first conference is a superordinate conference of the second conference, and the second conference is a subordinate conference of the first conference, or the first conference is a subordinate conference of the second conference, and the second conference is a superordinate conference of the first conference. The superior conference may be a conference of a main conference place, and the subordinate conference may be a conference of a branch conference place.

When determining that the conference area is not the local area, the first conference management platform determines a second conference management platform corresponding to the conference area, and sends the data synchronization request to the second conference management platform, which optionally includes:

When the conference area is not the local area, the conference area may be an upper area of the local area (i.e., an area where an upper conference of the first conference is located) or a lower area of the local area (i.e., an area where a lower conference of the first conference is located).

Step 503, after receiving the data synchronization request, the second conference management platform sends the requested synchronization data to the first conference management platform.

And after receiving a data synchronization request sent by the first conference management platform through the Internet, the second conference management platform determines a second conference scheduling platform corresponding to the data requested to be synchronized, acquires the data requested to be synchronized according to the second conference scheduling platform, and sends the data requested to be synchronized to the first conference management platform through the Internet. When the second conference management platform acquires the data requested to be synchronized, a request instruction can be sent to the second conference scheduling platform, so that the data requested to be synchronized returned by the second conference scheduling platform is received; or the requested synchronization data may be stored locally in advance, so that the requested synchronization data can be directly queried and obtained in the local storage according to the conference identifier in the requested synchronization data.

Step 504, the first conference management platform sends the requested synchronized data to the first conference scheduling platform.

After receiving the data requested to be synchronized, which is sent by the second conference management platform, through the internet, the first conference management platform sends the data requested to be synchronized to the first conference scheduling platform, so that the first conference scheduling platform can synchronize the data in the second conference.

For example, when a user in a first conference views a device list in a second conference, a data synchronization instruction may be sent to a first conference scheduling platform, the first conference scheduling platform generates a data synchronization request according to the data synchronization instruction and sends the data synchronization request to a first conference management platform through the internet, the first conference management platform determines a second conference management platform corresponding to a conference area through the conference area where the data requested to be synchronized in the data synchronization request is located, and sends the data synchronization request to the second conference management platform, after the second conference management platform acquires the device list data of the second conference, the device list data of the second conference is returned to the first conference management platform, so that the first conference management platform sends the device list data of the second conference to the first conference scheduling platform, and the first conference scheduling platform may synchronously store the device list data of the second conference, therefore, the user can directly check the equipment list of the second conference without acquiring the equipment list through other communication modes.

In the technical solution of this embodiment, after receiving the data synchronization request sent by the corresponding first conference scheduling platform through the first conference management platform, if the conference area where the requested data in the data synchronization request is not the local area, determining a second conference management platform corresponding to the conference area, sending the data synchronization request to the second conference management platform, returning the requested synchronization data by the second conference management platform, therefore, when the data in the hierarchical conference needs to be synchronized, the user does not need to acquire the data in the hierarchical conference in a communication mode except for the hierarchical conference, the data to be synchronized is automatically acquired through the corresponding conference management platform, frequent operation among the users is reduced, simplicity and convenience of user operation are greatly improved, data monitoring performance among the conference conferences is realized, and practicability and operability of the hierarchical conference are improved.

On the basis of the above embodiment, the method may further include:

When a first conference and a second conference carry out video communication through a hierarchical conference control terminal, a first conference scheduling platform controlling the first conference acquires equipment list data of the first conference, and then uploads the equipment list data of the first conference to a corresponding first conference management platform, and during the conference, the equipment list data of the first conference is stored by the first conference management platform, so that data synchronization can be carried out subsequently according to a data synchronization request; and after the second conference scheduling platform for controlling the second conference acquires the equipment list data of the second conference, uploading the equipment list data of the second conference to the corresponding second conference management platform, and during the conference, storing the equipment list data of the second conference by the second conference management platform so as to facilitate subsequent data synchronization according to the data synchronization request.

On the basis of the above embodiment, the method may further include:

When the first conference management platform determines that the conference area is the local area, the first conference management platform can query and acquire the data requested to be synchronized from the prestored conference data according to the conference identifier in the data requested to be synchronized, and after the data requested to be synchronized is acquired, the data requested to be synchronized is sent to the first conference scheduling platform, so that the first conference scheduling platform can synchronize the data requested to be synchronized.

On the basis of the above embodiment, the method may further include:

When the first conference is a superior conference of the second conference, the first conference management platform sends a request for synchronizing the equipment list data of the second conference to the second conference management platform at regular time, and the second conference management platform sends the equipment list data of the second conference to the first conference management platform after receiving the request, so that the conference management platform of the superior conference can store the equipment list data of the subordinate conference, and a user of the main conference place can conveniently view the conference equipment condition of the branch conference place. When the second conference is a superior conference of the first conference, the second conference management platform sends a request for synchronizing the equipment list data of the first conference to the first conference management platform at regular time, and after receiving the request, the first conference management platform sends the equipment list data of the first conference to the first conference management platform, so that the conference management platform of the superior conference can store the equipment list data of the inferior conference, and a user of the main conference place can conveniently view the conference equipment condition of the branch conference place. When the first conference is a superior conference of the second conference, the first conference management platform is a superior management platform of the second conference management platform, which may also be referred to as a parent management platform. When the second conference is a superior conference of the first conference, the second conference management platform is a superior management platform of the first conference management platform, which may also be referred to as a parent management platform.

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. 6, there is shown a block diagram of an embodiment of a data synchronization system in a hierarchical conference according to the present invention, which can be applied to an internet of view, wherein the hierarchical conference includes a first conference belonging to a first internet of view server and a second conference belonging to a second internet of view server, the first internet of view server and the second internet of view server are connected through a hierarchical conference control terminal, the first conference in the first internet of view server is managed by a first conference management platform through a first conference scheduling platform, and the second conference in the second internet of view server is managed by a second conference management platform through a second conference scheduling platform, and the system specifically includes the following modules:

a data synchronization request receiving module 611, configured in the first conference management platform 610, configured to receive a data synchronization request sent by the first conference scheduling platform, where the data synchronization request includes a conference area where the requested data is located;

a data synchronization request sending module 612, configured in the first conference management platform 610, and configured to determine, when it is determined that the conference area is not the local area, a second conference management platform corresponding to the conference area, and send the data synchronization request to the second conference management platform;

a first data sending module 621, configured in the second conference management platform 620, and configured to send, after receiving the data synchronization request, the data requested to be synchronized to the first conference management platform;

a second data sending module 613 configured in the first conference management platform 610, for sending the requested synchronized data to the first conference scheduling platform.

Optionally, the method further includes:

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 electronic focusing method and the electronic focusing device of the camera provided by the invention are introduced in detail, and the principle and the implementation mode of the invention are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.

Claims

1. A method for synchronizing data in a hierarchical conference, the method being applied to a video network, the hierarchical conference comprising a first conference belonging to a first video network server and a second conference belonging to a second video network server, the first video network server and the second video network server being connected by a hierarchical conference control terminal, the first conference in the first video network server being managed by a first conference management platform through a first conference scheduling platform, the second conference in the second video network server being managed by a second conference management platform through a second conference scheduling platform, wherein a part of conference data is transmitted through the conference management platform, and the hierarchical conference control terminal is a hardware terminal capable of communicating across a plurality of video networks, the method comprising:

the first conference management platform receives a data synchronization request sent by the first conference scheduling platform through the Internet, wherein the data synchronization request comprises a conference area where data requested to be synchronized are located;

after receiving the data synchronization request sent by the first conference management platform through the internet, the second conference management platform sends the data requested to be synchronized to the first conference management platform;

after receiving the data requested to be synchronized and sent by the second conference management platform through the internet, the first conference management platform sends the data requested to be synchronized to the first conference scheduling platform, and the first conference scheduling platform is used for synchronously storing the equipment list data of the second conference;

when the first conference management platform determines that the conference area is not the local area, determining a second conference management platform corresponding to the conference area, and sending the data synchronization request to the second conference management platform, including:

2. The method of claim 1, further comprising:

3. The method of claim 1, further comprising:

and when the first conference management platform determines that the conference area is the local area, the first conference management platform queries and acquires the data requested to be synchronized from the prestored conference data according to the conference identifier in the data requested to be synchronized, and sends the data requested to be synchronized to the first conference scheduling platform.

4. The method of claim 1, further comprising:

5. A data synchronization system in a hierarchical conference, the system being applied to a video network, the hierarchical conference including a first conference belonging to a first video network server and a second conference belonging to a second video network server, the first video network server and the second video network server being connected by a hierarchical conference control terminal, the first conference in the first video network server being managed by a first conference management platform through a first conference scheduling platform, the second conference in the second video network server being managed by a second conference management platform through a second conference scheduling platform, wherein part of conference data is transparently transferred through the conference management platform, and the hierarchical conference control terminal is a hardware terminal capable of communicating across a plurality of video networks, the system comprising:

a data synchronization request receiving module configured in the first conference management platform and configured to receive a data synchronization request sent by the first conference scheduling platform through the internet, where the data synchronization request includes a conference area where data requested to be synchronized is located;

the first data sending module is configured in the second conference management platform and used for sending the data requested to be synchronized to the first conference management platform after receiving the data synchronization request sent by the first conference management platform through the internet;

the second data sending module is configured in the first conference management platform and is used for sending the data requested to be synchronized to the first conference scheduling platform after receiving the data requested to be synchronized, which is sent by the second conference management platform, through the internet, and the first conference scheduling platform is used for synchronously storing the equipment list data of the second conference;

the data synchronization request sending module is specifically configured to:

6. The system of claim 5, further comprising:

7. The system of claim 5, further comprising:

and the third data sending module is configured in the first conference management platform and is used for inquiring and acquiring the data requested to be synchronized from the prestored conference data according to the conference identifier in the data requested to be synchronized when the conference area is determined to be the local area, and sending the data requested to be synchronized to the first conference scheduling platform.

8. The system of claim 5, further comprising: