CN113691763A - Video conference method based on video conference system and video conference system - Google Patents
Video conference method based on video conference system and video conference system Download PDFInfo
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Abstract
The invention provides a video conference method based on a video conference system, which relates to the technical field of communication, wherein the video conference system comprises a satellite video conference system and a ground video conference system, and the satellite video conference system comprises a first user management server and a satellite MCU; the method comprises the following steps: after the first user management server passes access authentication and authorization of the participant terminal, determining a target low-orbit satellite for providing service for the participant terminal based on the position information of the participant terminal, and sending the terminal ID of the participant terminal to the target low-orbit satellite; the method comprises the steps that a satellite MCU receives conference information sent by a target low-orbit satellite; the satellite MCU processes the conference information and then sends the processed conference information to all the conference participating terminals accessed to the satellite video conference system, and transmits the processed conference information to the ground video conference system, so that the conference participating terminals accessed to the ground video conference system receive the conference information. The invention also provides a video conference system.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a video conference method and a video conference system based on a video conference system.
Background
With the development of technology, different users in various regions can exchange information through a video conference. However, the existing video conference system often only provides a land-based network access capability, that is, a user on land with a fixed mobile network coverage can join the conference system, and when the user is in an area without the fixed mobile network coverage, such as a river, a sea, a remote area, and an air area, the user cannot join the conference system. Therefore, how to enable users in different areas to join the conference system is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art and provides a video conference method and a video conference system based on a video conference system.
In a first aspect, the present invention provides a video conference method based on a video conference system, where the video conference system includes a satellite video conference system in a satellite network and a ground video conference system in a fixed-mobile network, and the satellite video conference system includes a first user management server and a satellite MCU;
the method comprises the following steps:
after the first user management server passes access authentication and authorization of the participant terminal, determining a target low-orbit satellite providing service for the participant terminal based on the position information of the participant terminal;
the first user management server sends the terminal ID of the participant terminal to the target low-orbit satellite so that the target low-orbit satellite can receive the conference information uploaded by the participant terminal corresponding to the terminal ID;
the satellite MCU receives the conference information sent by the target low-orbit satellite;
and the satellite MCU processes the conference information and then sends the processed conference information to all the conference participating terminals accessed to the satellite video conference system, and transmits the processed conference information to the ground video conference system so that the conference participating terminals accessed to the ground video conference system can receive the conference information.
In some embodiments, before the first user management server determines, after the access authentication and authentication of the participating terminal is passed, a target low-earth orbit satellite for providing a service for the participating terminal based on the location information of the participating terminal, the method further includes:
the first user management server receives a participation request sent by a participation terminal in a satellite network, wherein the participation request comprises: a terminal ID of a participant terminal in the satellite network;
and the first user management server performs access authentication on the participating terminal in the satellite network based on the terminal ID.
In some embodiments, before the first user management server determines, after the access authentication and authentication of the participating terminal is passed, a target low-earth orbit satellite for providing a service for the participating terminal based on the location information of the participating terminal, the method further includes:
the first user management server receives an access network switching request of a participating terminal in a fixed mobile network, wherein the access network switching request is sent by a ground video conference system and comprises the following steps: the terminal ID of the participating terminal in the fixed-mobile network;
and the first user management server performs access authentication on the participating terminal in the fixed mobile network based on the terminal ID.
In some embodiments, before the first user management server receives an access network switching request of a participant terminal sent by a ground video conference system, the method further includes:
a second user management server in the ground video conference system receives an access network switching request sent by a participant terminal in the fixed-mobile network, wherein the participant terminal in the fixed-mobile network is in a motion state and enters an area without coverage of the fixed-mobile network from an area covered by the fixed-mobile network;
the second user management server sends the access network switching request to an access network controller in the ground video conference system;
the first user management server receives an access network switching request of a participant terminal sent by a ground video conference system, and the access network switching request comprises the following steps:
and the first user management server receives an access network switching request of the participating terminal sent by the access network controller in the ground video conference system.
In some embodiments, before the second user management server in the ground video conference system receives the access network switching request sent by the participating terminal in the fixed-mobile network, the method further includes:
the access network controller receives a participation request sent by a participation terminal in the fixed-mobile network, wherein the participation request comprises a terminal ID of the participation terminal in the fixed-mobile network;
the access network controller authenticates and authenticates the participant terminal in the fixed mobile network according to the terminal ID, and sends a participant request to a ground MCU in the ground video conference system after the authentication and authentication are passed;
the ground MCU returns conference address information to the access network controller;
the access network controller sends the conference address information to the conference participating terminals in the fixed and mobile network so that the conference participating terminals in the fixed and mobile network can enter a conference based on the conference address information;
and the ground MCU receives the conference information sent by the conference participating terminals in the fixed-moving network, locally processes the conference information and then sends the processed conference information to other conference participating terminals accessed into the ground video conference system and the satellite MCU, so that the satellite MCU locally processes the conference information and then sends the processed conference information to the conference participating terminals accessed into the satellite video conference system.
In some embodiments, after the satellite MCU processes the conference information and then sends the processed conference information to all the participating terminals accessing the satellite video conference system, the method further includes:
and the satellite MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
In some embodiments, after the ground MCU locally processes the conference information and then sends the processed conference information to other conference participating terminals accessed to the ground video conference system, the method further includes:
and the ground MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
In a second aspect, the present invention further provides a video conference system, where the video conference system includes a satellite video conference system in a satellite network and a ground video conference system in a fixed-mobile network; the satellite video conference system comprises:
the first user management server is used for determining a target low-orbit satellite providing service for the participant terminal based on the position information of the participant terminal after the participant terminal passes the access authentication and authorization; the terminal ID of the participating terminal is sent to the target low-orbit satellite, so that the target low-orbit satellite can receive the conference information uploaded by the participating terminal corresponding to the terminal ID;
the satellite MCU is used for receiving the conference information sent by the target low-orbit satellite; the conference information is processed and then sent to all conference participating terminals accessed to the satellite video conference system, and the processed conference content information is transmitted to the ground video conference system, so that the conference participating terminals accessed to the ground video conference system receive the conference content information;
and the ground video conference system is used for receiving the processed conference content information sent by the MCU in the satellite video system and sending the processed conference content information to the conference participating terminal accessed into the ground video conference system.
In some embodiments, the first user management server is specifically configured to receive a conference participation request sent by a conference participation terminal in a satellite network; and the access authentication and authorization module is used for carrying out access authentication and authorization on the participating terminal.
In some embodiments, the first user management server is further configured to receive an access network handover request of a participant terminal sent by a ground video conference system, where the access network handover request includes: ID of the participant terminal.
In some embodiments, the ground video conferencing system comprises: a second user management server and an access network controller;
the second user management server is used for receiving an access network switching request sent by a participant terminal in a fixed-mobile network before the first user management server receives the access network switching request of the participant terminal sent by a ground video conference system, wherein the access network switching request is sent by the participant terminal in the fixed-mobile network
The participating terminal in the fixed-mobile network is in a motion state and enters an area without the coverage of the fixed-mobile network from an area with the coverage of the fixed-mobile network; and for sending the access network handover request to an access network controller;
the first user management server is specifically configured to receive an access network switching request of the participant terminal sent by the access network controller.
The invention has the beneficial technical effects that:
according to the video conference method and the video conference system based on the video conference system, when the participant terminal participates in the video conference based on the satellite network, the satellite video conference system in the video conference system receives the conference content sent by the participant terminal based on the low orbit satellite and transmits the conference content sent by the participant terminal to the ground video conference system in the video conference system, so that users in the ground video conference system and the satellite video conference system can participate in the conference.
Drawings
Fig. 1 is a block diagram of a video conference system according to an embodiment of the present invention;
fig. 2 is a flowchart of a video conference method based on a video conference system according to an embodiment of the present invention;
fig. 3 is a video conference method based on a video conference system according to another embodiment of the present invention;
fig. 4 is a flowchart of a video conference method based on a video conference system according to another embodiment of the present invention;
fig. 5 is a flowchart of a video conference method based on a video conference system according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a video conference system according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of another video conference system according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following describes in detail a video conference method and a video conference system based on a video conference system provided by the present invention with reference to the accompanying drawings.
Fig. 1 is a block diagram of a video conference system according to an embodiment of the present invention.
The video conference system provided by the present invention is divided into a ground network and a satellite network in the sky, as shown in fig. 1, the video conference system provided by the present invention includes: a satellite video conferencing system 1 and a terrestrial video conferencing system 2.
The ground video conference system 2 may include a conference recording server, a core network switch, a metropolitan area transmission network controller, an access network controller, a Multi-point Control Unit (MCU), a user management server, and the like, wherein the access network controller is connected to the MCU and the user management server. The MCU is a multimedia information switch, performs multi-point calling and connection, realizes the functions of video broadcasting, video selection, audio mixing, data broadcasting and the like, and completes the tandem and switching of signals of each terminal; the user management server finishes the operation requirements of registration, authentication, charging and the like of the user; the access network controller completes the control management of each user access network, determines the path and bandwidth of the access layer for each streaming media service, and proposes link and bandwidth reservation resources to the metropolitan area transmission network according to the request of the user and determines a good path. The whole video conference system supports a multi-channel high-definition conference hall, according to the number of participants registered in advance, a cascaded MCU mode can be adopted to meet the requirement of participation of multiple participants, any MCU is damaged or stops working without influencing normal use, the whole network is controlled by adopting a mature SDN framework at present, the whole ground communication system realizes unified control and management on multiple heterogeneous access networks through interfaces and protocols defined by the SDN, wired and wireless comprehensive access is realized, and the requirement of network fusion is met.
The satellite video conference system 1 mainly comprises a user management server and an MCU; the user management server interacts with a user management server in a ground network through a link to acquire registration information and authentication information of a user and complete an operation charging function and the like; the multiple MCUs complete functions of user conference video broadcasting, video selection, audio mixing, data broadcasting and the like in the satellite network, and complete the junction and switching of signals of each terminal. The satellite video conferencing system 2 communicates based on low earth orbit satellites. At present, Low Earth Orbit (LEO) satellites develop rapidly, and the LEO satellites are about 100km to 1000km above the Earth surface and much lower than the traditional communication satellites. This enables frequent radio contact of the satellite with a terrestrial base station (receiver). The system can provide broadband service with the capacity of 1Gbps per user, the time delay can be controlled between 25ms and 35ms, and the bandwidth requirement of video transmission of the user can be met. The invention provides streaming media service for ground users by adopting a plurality of LEO satellites, and in addition, the invention adopts a geosynchronous satellite (high orbit satellite) or a static orbit satellite to support the functions of a user management server and an MCU based on a satellite network.
In the present invention, when the participant terminal (for example, a device on a mobile automobile) is within the coverage of the ground fixed mobile network, the reception and service of the media can be completed through the base station, and when the participant terminal moves to a place where the ground network cannot cover, for example, the automobile where the participant terminal is located is driven to an area without coverage of the fixed mobile network, or the participant terminal on a ship or an airplane in the air which is driven at sea is lost, the service needs to be provided through the satellite network. Based on the above, the invention is preset with an electronic map, the electronic map is stored in a user management server in a ground video conference system, the electronic map is set by a network operator according to own network planning and base station setting, which places have network coverage and can provide broadband streaming media service, and which places do not have wireless network coverage, accordingly, an electronic map is drawn, and the electronic map is sent to the user management server for storage, and simultaneously sent to a participating device needing to use the video conference system, such as a participating device in an automobile, so as to be used in a subsequent conference-based process.
In the invention, the participating terminal can comprise a high-definition television or an audio and video playing soft terminal, and can also comprise a tablet personal computer, a smart phone and the like.
In the following embodiments, a user management server in a satellite video conference system is referred to as a first user management server, and an MCU in the satellite video conference system is referred to as a satellite MCU; and the user management server in the ground video conference system is called a second user management server, and the MCU in the ground video conference system is called a ground MCU.
Fig. 2 is a flowchart of a video conference method based on a video conference system according to an embodiment of the present invention.
As shown in fig. 2, a video conference method provided in an embodiment of the present invention includes:
step S101, after the first user management server passes access authentication and authorization of the participating terminal, the first user management server determines a target low-orbit satellite providing service for the participating terminal based on the position information of the participating terminal.
After the first user management server on the satellite receives the participation request or the access network switching request of the participation terminal, the first user management server verifies the participation qualification of the participation terminal, and only the participant terminal which passes the verification has the participation qualification. Specifically, whether the participant terminal has a participant qualification may be determined by verifying whether the terminal ID of the participant terminal exists in the pre-stored conference member information, or by checking an authentication code issued to the participant terminal in advance.
After the participation qualification of the participation terminal is verified, a low-orbit satellite closest to the participation terminal is determined according to the position information of the participation terminal, a subsequent satellite which is located in the same operation orbit and is within a preset range with the low-orbit satellite closest to the participation terminal is determined, and the low-orbit satellite closest to the participation terminal and the subsequent satellite are determined as target low-orbit satellites capable of providing service for the participation terminal.
In practical application, the operating angular speed of the low-orbit satellite is generally higher than the rotational angular speed of the earth, so that in the embodiment of the invention, the low-orbit satellite closest to the participant terminal and the subsequent satellite are determined as the target low-orbit satellite capable of providing service for the participant terminal, so that the signals sent by the participant terminal can be fully ensured to be received by the low-orbit satellite, and the success rate of accessing the participant terminal to the video conference system is improved.
The position information of the participating terminal can be determined by the first user management server according to the angle of the signal sent by the participating terminal received by the participating terminal, or the position information of the participating terminal can be carried in a participating request or an access network switching request sent by the participating terminal to the first user management server.
And S102, the first user management server sends the terminal ID of the participating terminal to the target low-orbit satellite so that the target low-orbit satellite can receive the conference information uploaded by the participating terminal corresponding to the terminal ID.
After the first user management server sends the terminal ID of the participating terminal to the target low-orbit satellite, the target low-orbit satellite definitely and subsequently processes the signal of the participating terminal corresponding to the terminal ID, so that the conference information subsequently sent by the participating terminal can be successfully received by the target low-orbit satellite.
And step S103, the satellite MCU receives conference information sent by the target low orbit satellite.
The conference participating terminal transmits conference information purposelessly based on a satellite network, and the target low-earth orbit satellite receives the conference information and then transmits the conference information to the satellite MCU.
Meeting information includes, but is not limited to: at least one of audio and video, pictures and characters.
And step S104, the satellite MCU processes the conference information and then sends the processed conference information to all the conference participating terminals accessed to the satellite video conference system, and the processed conference information is transmitted to the ground video conference system, so that the conference participating terminals accessed to the ground video conference system receive the conference information.
After receiving the conference information, the satellite MCU synchronously separates the received conference information sent by each participant terminal, extracts various information such as audio, video, data, signaling and the like, sends the same information of each participant terminal into the corresponding information processing module, and completes the processing of corresponding information, such as: mixing or switching of audio, mixing or switching of video information, broadcasting and routing of data information, timing and signaling control, etc. Finally, the processed audio, video, data and signaling are recombined and sent to the video conference places corresponding to the corresponding participating terminals.
Meanwhile, in the embodiment of the invention, the satellite MCU and the ground video conference system have a connection relation, and preferably, the satellite MCU and the ground MCU in the ground video conference system are connected in a cascading mode. The satellite MCU sends the processed conference information to a ground video conference system through a ground MCU cascaded with the satellite MCU, and the ground MCU locally processes the conference information based on the same information processing flow as the satellite MCU and then transmits the conference information to a video conference place corresponding to a participant terminal accessed into the ground video conference system.
According to the video conference method based on the video conference system, when the participant terminals participate in the video conference based on the satellite network, the satellite video conference system in the video conference system receives the conference contents sent by the participant terminals based on the low orbit satellite and transmits the conference contents sent by the participant terminals to the ground video conference system in the video conference system, so that users in the ground video conference system and users in the satellite video conference system can participate in the conference.
Fig. 3 is another video conference method based on a video conference system according to an embodiment of the present invention.
In this embodiment, the participating terminal is a terminal participating in a meeting by using a satellite network. Namely, the participating terminals are in an area without coverage of a fixed mobile network, and can only participate in the video conference based on the satellite network. As shown in fig. 3, compared to the embodiment shown in fig. 2, before step S101, the embodiment further includes:
step S100a1, the first user management server receiving a participation request sent by a participation terminal in the satellite network, where the participation request includes: terminal IDs of the participating terminals in the satellite network.
In the embodiment of the invention, the conference terminal in the fixed-mobile network and the conference terminal in the satellite network can be accessed to the conference system based on two modes. One mode is that the participant terminal registers to join the conference before the conference, and the mode requires that the participant terminal sends the own identity information to a second user management server in advance, the second user management server records the identity information of the participant terminal, and when the conference starts, the participant terminal initiates a conference joining request to the system; the other mode is that the user management server sends the conference name and the conference ID to the conference participating terminals, and the conference participating terminals initiate conference participating requests to the system according to the conference name and the conference ID when the conference starts. It should be noted that, for a participant in the satellite network, the participant terminal sends its own identity information to the first user management server on the satellite, and the first user management server forwards the information to the second user management server in the ground video conference system, and the two servers interact to jointly complete the access and authentication service of the user
And S100a2, the first user management server performs access authentication on the participating terminal in the satellite network based on the terminal ID.
In the embodiment of the invention, the participating terminal in the satellite network refers to a terminal which can only participate in the video conference based on the satellite network.
In other embodiments, the participation request may further include information such as position information of the terminal and a conference ID required to be added, so that the first user management server may determine the target low-orbit satellite based on the position information of the terminal subsequently.
And after receiving the participation request, the first user management server compares the prestored participation member information based on the terminal ID to determine whether the participation terminal has the participation qualification. Specifically, when the terminal ID is compared to be in the pre-stored information of the participating members, the participating terminal is determined to have the participating qualification, namely the authentication is successful; otherwise, the participating terminal does not participate in qualification, namely authentication fails.
Fig. 4 is a flowchart of a video conference method based on a video conference system according to another embodiment of the present invention.
In this embodiment, the participating terminal is specifically a terminal that enters an area covered by the fixed mobile network into an area not covered by the fixed mobile network.
Specifically, as shown in fig. 4, compared to the embodiment shown in fig. 2, before step S100, the embodiment further includes:
step S100b1, the first user management server receives an access network switching request of a participant terminal in the fixed-mobile network sent by the ground video conference system, where the access network switching request includes but is not limited to: and fixing the terminal ID of the participating terminal in the mobile network.
And step S100b2, the first user management server performs access authentication on the participating terminal in the fixed network based on the terminal ID.
When a participant terminal in the fixed-mobile network is participating in a conference based on the ground video conference system, but the participant terminal is in a motion state, an area covered by the fixed-mobile network enters an area without the coverage of the fixed-mobile network, and therefore the video conference based on the fixed-mobile network participation needs to be switched to the video conference based on the satellite network participation. At this time, the participant terminal in the fixed mobile network sends an access network switching request to the ground video conference system, the access network switching request includes but is not limited to the terminal ID of the participant terminal in the fixed mobile network, and the ground video conference system further sends the access network switching request to the first user management server in the satellite network, so that the first user management server performs access authentication and authorization on the participant terminal in the fixed mobile network based on the terminal ID in the access network switching request. The authentication process of the first user management server for the participant terminal in the fixed mobile network is the same as the step S100a2 in the previous embodiment, and details are not repeated here.
Further, when the participant terminal enters an area without coverage of the fixed mobile network from an area with coverage of the fixed mobile network, the network handover procedure may be implemented based on the following procedure.
Specifically, fig. 5 is a flowchart of a video conference method based on a video conference system according to another embodiment of the present invention. Referring to fig. 5, in some embodiments, before step S100b1, the method further includes:
step S100b01, the second user management server in the ground video conference system receives an access network switching request sent by the participating terminal in the fixed-mobile network.
The participating terminals in the fixed-mobile network are in a motion state and enter an area without the coverage of the fixed-mobile network from an area covered by the fixed-mobile network.
Specifically, in the embodiment of the present invention, as described above, an electronic map is preset in the participant terminal in the fixed-mobile network, and the electronic map indicates an area covered by the fixed-mobile network and an area not covered by the fixed-mobile network. The conference participating terminal continuously monitors the current position of the conference participating terminal in the moving process, and when the distance between the current position of the conference participating terminal and an area which is not covered by a fixed mobile network in an electronic map is monitored to be within a preset distance range, an access network switching request is sent to a second user management server, wherein the access network switching request at least comprises a terminal ID, and in some embodiments, the access network switching request also can comprise the ID and the current position information of a conference which the conference participating terminal is currently participating in.
And step S100b02, the second user management server sends the access network switching request to an access network controller in the ground video conference system.
The access network controller further sends the access network switching request to a first user management server in the satellite video conference system. Correspondingly, in this embodiment, the specific process of step S100b1 is as follows: and the first user management server receives an access network switching request of the participating terminal sent by an access network controller in the ground video conference system.
Further, with reference to fig. 5, before switching networks, the conference terminal participates in the conference by using the fixed-mobile-network-based ground video conference system, as shown in fig. 5, before step S100b01, the method further includes:
and step S0001, the access network controller receives a participation request sent by the participation terminal in the fixed-mobile network, wherein the participation request comprises the terminal ID of the participation terminal in the fixed-mobile network.
The procedure of accessing the conference by the conference terminal in the fixed-mobile network is the same as the procedure of accessing the conference by the conference terminal in the satellite network, and for details, reference is made to the description of step S100a1, which is not described herein again.
And S0002, the access network controller authenticates and authenticates the participant terminal in the fixed-mobile network according to the terminal ID, and sends a participant request to a ground MCU in the ground video conference system after the authentication and authentication are passed.
And S0003, the ground MCU returns the conference address information to the access network controller.
The conference address information includes information such as an IP address of the conference.
And step S0004, the access network controller sends the conference address information to the participant terminals in the fixed-mobile network so that the participant terminals in the fixed-mobile network can enter the conference based on the conference address information.
And S0005, the ground MCU receives conference information sent by the participant terminals in the fixed-mobile network, locally processes the conference information and sends the conference information to other participant terminals accessed to the ground video conference system and the satellite MCU, so that the satellite MCU locally processes the conference information and sends the conference information to the participant terminals accessed to the satellite video conference system.
In the implementation, the participating terminals access the video conference system based on the fixed-mobile network, and the conference information is transmitted by interacting with the ground MCU.
In some embodiments, a conference recording server is provided in the ground video conference system for recording the conference process.
Specifically, after the satellite MCU processes the conference information and sends the processed conference information to all the conference participating terminals accessed to the satellite video conference system, the satellite MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
Similarly, after the ground MCU locally processes the conference information and sends the processed conference information to other conference participating terminals accessed into the ground video conference system, the ground MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
By storing the conference process, the follow-up inquiry on the conference content is facilitated.
And when the conference is finished, the second user management server on the ground sends the finishing information, and the conference participating terminal in the satellite network finishes the conference after receiving the finishing information.
According to the video conference system provided by the invention, through the ground Multipoint Control Unit (MCU) and the satellite Multipoint Control Unit (MCU), the video conference system can be accessed at any time and any place in a city, a mountain area, a remote school and a hospital, or in a journey with an airplane and a vast sea, or a ground-moving participant (such as a participant sitting on a fast-moving automobile) can be switched between the ground video conference system and the satellite video conference system based on a preset electronic map, so that the video conference system integrated with the sky and the ground can be accessed at any time and any place, and the continuity and the integrity of streaming media service of a user are ensured.
Fig. 6 is a schematic structural diagram of a video conference system according to an embodiment of the present invention. As shown in fig. 6, the video conference system includes a satellite video conference system 1 in a satellite network and a terrestrial video conference system 2 in a fixed-mobile network; the satellite video conference system 1 includes: a first user management server 11, and a satellite MCU 12.
The first user management server 11 is configured to determine, based on the location information of the participant terminal, a target low-earth orbit satellite that provides service for the participant terminal after the participant terminal passes access authentication and authentication; and the terminal ID of the participating terminal is sent to the target low-orbit satellite, so that the target low-orbit satellite can receive the conference information uploaded by the participating terminal corresponding to the terminal ID.
The satellite MCU12 is used for receiving conference information sent by a target low-orbit satellite; and the conference information processing device is used for processing the conference information and then sending the processed conference information to all the conference participating terminals accessed to the satellite video conference system, and transmitting the processed conference content information to the ground video conference system so that the conference participating terminals accessed to the ground video conference system can receive the conference information.
And the ground video conference system is used for receiving the processed conference content information sent by the MCU in the satellite video system and sending the processed conference content information to the conference participating terminal accessed into the ground video conference system.
Further, the first user management server 11 is specifically configured to receive a conference joining request sent by a conference joining terminal in the satellite network; and the access authentication and authorization are carried out on the participating terminals.
Further, in some embodiments, the first user management server 11 is further configured to receive an access network switching request of the participant terminal sent by the ground video conference system 2, where the access network switching request includes: ID of the participant terminal.
Fig. 7 is a schematic structural diagram of another video conference system according to an embodiment of the present invention.
As shown in fig. 7, in this embodiment, the ground video conference system 2 includes: a second subscriber management server 21 and an access network controller 22.
The second user management server 21 is configured to receive an access network switching request sent by a participant terminal in a fixed-mobile network before the first user management server 11 receives the access network switching request of the participant terminal sent by the ground video conference system, where the participant terminal in the fixed-mobile network is in a moving state and is entering an area without coverage of the fixed-mobile network from an area with coverage of the fixed-mobile network; and for sending the access network handover request to the access network controller.
The first user management server 11 is specifically configured to receive an access network handover request of the participating terminal sent by the access network controller.
Further, with continued reference to fig. 7, in some embodiments, ground video conferencing system 2 further comprises: ground MCU 23.
Before the second user management server 21 in the ground video conference system 2 receives an access network switching request sent by a participant terminal in the fixed-mobile network, the access network controller 22 receives a participant request sent by the participant terminal in the fixed-mobile network, wherein the participant request includes a terminal ID of the participant terminal in the fixed-mobile network; the access network controller 22 authenticates and authenticates the participating terminal in the fixed-mobile network according to the terminal ID, and sends a participating request to the ground MCU23 in the ground video conference system after the authentication and authentication are passed; the ground MCU23 returns the conference address information to the access network controller 22 after receiving the conference participation request; the access network controller 22 sends the conference address information to the participant terminals in the fixed-mobile network, so that the participant terminals in the fixed-mobile network can enter the conference based on the conference address information.
After receiving the conference information sent by the participant terminals in the fixed-mobile network, the ground MCU23 locally processes the conference information and sends the processed conference information to other participant terminals accessed to the ground video conference system and the satellite MCU12, so that the satellite MCU12 locally processes the conference information and sends the processed conference information to the participant terminals accessed to the satellite video conference system.
In some embodiments, in order to facilitate reviewing of conference contents later, after the satellite MCU processes the conference information and sends the processed conference information to all the conference terminals accessing the satellite video conference system, the satellite MCU obtains the processed conference information and sends the processed conference information to a preset conference recording server for storage. Similarly, after the ground MCU locally processes the conference information and sends the processed conference information to other conference participating terminals accessed into the ground video conference system, the ground MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
The video conference system provided in the embodiment of the present invention is used to implement the video conference method based on the video conference system provided in the embodiment of the present invention, and in particular, the structure of the video conference system and the interaction process between the structures in the embodiment of the present invention are described with reference to the method steps corresponding to the video conference method of the video conference provided in the embodiment of the present invention, which are not described herein again.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (11)
1. A video conference method based on a video conference system is characterized in that the video conference system comprises a satellite video conference system in a satellite network and a ground video conference system in a fixed-mobile network, and the satellite video conference system comprises a first user management server and a satellite MCU;
the method comprises the following steps:
after the first user management server passes access authentication and authorization of the participant terminal, determining a target low-orbit satellite providing service for the participant terminal based on the position information of the participant terminal;
the first user management server sends the terminal ID of the participant terminal to the target low-orbit satellite so that the target low-orbit satellite can receive the conference information uploaded by the participant terminal corresponding to the terminal ID;
the satellite MCU receives the conference information sent by the target low-orbit satellite;
and the satellite MCU processes the conference information and then sends the processed conference information to all the conference participating terminals accessed to the satellite video conference system, and transmits the processed conference information to the ground video conference system so that the conference participating terminals accessed to the ground video conference system can receive the conference information.
2. The method as claimed in claim 1, wherein before the first user management server determines the target low earth orbit satellite serving the participant terminal based on the location information of the participant terminal after the first user management server passes the access authentication and authentication of the participant terminal, the method further comprises:
the first user management server receives a participation request sent by a participation terminal in a satellite network, wherein the participation request comprises: a terminal ID of a participant terminal in the satellite network;
and the first user management server performs access authentication on the participating terminal in the satellite network based on the terminal ID.
3. The method as claimed in claim 1, wherein before the first user management server determines the target low earth orbit satellite serving the participant terminal based on the location information of the participant terminal after the first user management server passes the access authentication and authentication of the participant terminal, the method further comprises:
the first user management server receives an access network switching request of a participating terminal in a fixed mobile network, wherein the access network switching request is sent by a ground video conference system and comprises the following steps: the terminal ID of the participating terminal in the fixed-mobile network;
and the first user management server performs access authentication on the participating terminal in the fixed mobile network based on the terminal ID.
4. The method according to claim 3, before the first subscriber management server receives the access network handover request of the participating terminal sent by the ground video conference system, further comprising:
a second user management server in the ground video conference system receives an access network switching request sent by a participant terminal in the fixed-mobile network, wherein the participant terminal in the fixed-mobile network is in a motion state and enters an area without coverage of the fixed-mobile network from an area covered by the fixed-mobile network;
the second user management server sends the access network switching request to an access network controller in the ground video conference system;
the first user management server receives an access network switching request of a participant terminal sent by a ground video conference system, and the access network switching request comprises the following steps:
and the first user management server receives an access network switching request of the participating terminal sent by the access network controller in the ground video conference system.
5. The method according to claim 4, before the second subscriber management server in the ground video conference system receives the access network switching request sent by the participating terminal in the fixed-mobile network, further comprising:
the access network controller receives a participation request sent by a participation terminal in the fixed-mobile network, wherein the participation request comprises a terminal ID of the participation terminal in the fixed-mobile network;
the access network controller authenticates and authenticates the participant terminal in the fixed mobile network according to the terminal ID, and sends a participant request to a ground MCU in the ground video conference system after the authentication and authentication are passed;
the ground MCU returns conference address information to the access network controller;
the access network controller sends the conference address information to the conference participating terminals in the fixed and mobile network so that the conference participating terminals in the fixed and mobile network can enter a conference based on the conference address information;
and the ground MCU receives the conference information sent by the conference participating terminals in the fixed-moving network, locally processes the conference information and then sends the processed conference information to other conference participating terminals accessed into the ground video conference system and the satellite MCU, so that the satellite MCU locally processes the conference information and then sends the processed conference information to the conference participating terminals accessed into the satellite video conference system.
6. The method of claim 1, wherein after the satellite MCU processes the conference information and transmits the processed conference information to all participating terminals accessing the satellite video conference system, the method further comprises:
and the satellite MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
7. The method of claim 5, wherein after the ground MCU locally processes the conference information and transmits the processed conference information to other participating terminals accessing the ground video conference system, the method further comprises:
and the ground MCU acquires the processed conference information and sends the processed conference information to a preset conference recording server for storage.
8. A video conference system, wherein the video conference system comprises a satellite video conference system in a satellite network and a ground video conference system in a fixed-mobile network; the satellite video conference system comprises:
the first user management server is used for determining a target low-orbit satellite providing service for the participant terminal based on the position information of the participant terminal after the participant terminal passes the access authentication and authorization; the terminal ID of the participating terminal is sent to the target low-orbit satellite, so that the target low-orbit satellite can receive the conference information uploaded by the participating terminal corresponding to the terminal ID;
the satellite MCU is used for receiving the conference information sent by the target low-orbit satellite; the conference information is processed and then sent to all conference participating terminals accessed to the satellite video conference system, and the processed conference content information is transmitted to the ground video conference system, so that the conference participating terminals accessed to the ground video conference system receive the conference content information;
and the ground video conference system is used for receiving the processed conference content information sent by the MCU in the satellite video system and sending the processed conference content information to the conference participating terminal accessed into the ground video conference system.
9. The video conference system according to claim 8, wherein the first user management server is specifically configured to receive a conference request sent by a conference terminal in a satellite network; and the access authentication and authorization module is used for carrying out access authentication and authorization on the participating terminal.
10. The video conference system of claim 8, wherein the first subscriber management server is further configured to receive an access network handover request of a participant terminal sent by a ground video conference system, and the access network handover request includes: ID of the participant terminal.
11. The video conferencing system of claim 10, wherein the ground based video conferencing system comprises: a second user management server and an access network controller;
the second user management server is used for receiving an access network switching request sent by a participant terminal in a fixed-mobile network before the first user management server receives the access network switching request of the participant terminal sent by a ground video conference system, wherein the access network switching request is sent by the participant terminal in the fixed-mobile network
The participating terminal in the fixed-mobile network is in a motion state and enters an area without the coverage of the fixed-mobile network from an area with the coverage of the fixed-mobile network; and for sending the access network handover request to an access network controller;
the first user management server is specifically configured to receive an access network switching request of the participant terminal sent by the access network controller.
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