CN113315945B - Terminal access method of distributed video conference system - Google Patents
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Abstract
The invention relates to the technical field of videos, and provides a terminal access method of a distributed video conference system, wherein the system comprises: the video conference management node, a plurality of video conference media servers and a plurality of video conference terminals, the method comprising: the current conference terminal acquires the network bandwidth and conference ID of a link joining a conference request; the video conference management node acquires a corresponding media server according to the conference ID; the current media server obtains the actual bandwidth of the current media server; and when the video conference management node judges that the estimated bandwidth of the current media server is greater than or equal to the network bandwidth of the current link and the actual bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, the current media server is allocated to the current conference terminal to join the link of the conference request. The invention can avoid the overload condition of the video conference media server and solve the problem of performance bottleneck caused by simultaneously accessing a large number of conference terminals into the same media server.
Description
Technical Field
The invention relates to the technical field of videos, in particular to a terminal access method of a distributed video conference system, computer equipment and a non-transitory computer readable storage medium.
Background
The distributed conference system is applied to modern work and study more and more with high efficiency, the conference system is generally characterized in that a management node and a plurality of streaming media servers are added, the management node receives a conference joining request sent by a terminal user, and the management node performs dynamic distribution according to the load of the media servers. In this way, the management node can only allocate according to the load of the streaming media server, and if a large number of users access the streaming media server, the problem of exceeding the processing capacity of the streaming media server occurs.
Disclosure of Invention
The invention provides a terminal access method of a distributed video conference system for solving the technical problems, which can avoid the overload condition of a video conference media server, simultaneously solve the problem of performance bottleneck caused by simultaneously accessing a large number of conference terminals into the same media server, efficiently and reasonably allocate resources and avoid resource waste.
The technical scheme adopted by the invention is as follows:
a terminal access method of a distributed video conference system, the system comprising: a video conference management node, a plurality of media servers and a plurality of conference terminals, the method comprising the steps of: the current conference terminal acquires the network bandwidth and conference ID of a link joining a conference request; the video conference management node acquires the corresponding media server according to the conference ID; the current media server obtains the actual bandwidth of the current media server; when judging that the estimated bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, the video conference management node further judges whether the actual bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, wherein when the actual bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, the current media server is allocated to the current conference terminal to join the link of the conference request.
According to an embodiment of the present invention, the videoconference management node is further configured to, when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, obtain the estimated bandwidths of the other media servers except the current media server; taking the media server corresponding to the estimated maximum bandwidth value as an alternative media server; and when the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal joining the conference request.
According to an embodiment of the present invention, the video conference management node is further configured to, when receiving the conference terminal join request again, determine whether an estimated bandwidth of the alternative media server is greater than or equal to a network bandwidth of a link of the current conference terminal join request; if the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link, further judging whether the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link; and when the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal joining the conference request.
According to another embodiment of the present invention, the videoconference management node is further configured to, when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, sequentially obtain minimum values of the estimated bandwidth and the actual bandwidth of the other media servers except the current media server; comparing the minimum values of the estimated bandwidth and the actual bandwidth of other media servers with the network bandwidth of the current link in sequence; and when the minimum value of the estimated bandwidth and the actual bandwidth of other media servers is greater than or equal to the network bandwidth of the current link, allocating the media server corresponding to the minimum value to the link of the current conference terminal for joining the conference request.
According to one embodiment of the invention, the current conference terminal respectively acquires the network bandwidth of the acquisition request link and the network bandwidth of the play request link; and the video conference management node allocates the media server to the acquisition request link/the playing request link according to the network bandwidth of the acquisition request link/the network bandwidth of the playing request link respectively.
According to an embodiment of the present invention, the video conference management node is further configured to update the estimated bandwidth of the current media server when the current media server is allocated to a link of the current conference terminal for joining a conference request, or when the current conference terminal is disconnected from the media server; the media server is further configured to update the actual bandwidth of the media server when the current conference terminal is successfully connected or disconnected with the media server.
According to an embodiment of the present invention, the media server is further configured to send a distribution stop signal to the video conference management node when the actual bandwidth is smaller than a preset threshold.
The invention has the beneficial effects that:
(1) when a request for joining a conference is received, a corresponding media server is determined according to a conference ID, whether the media server is allocated or not is determined according to the estimated bandwidth of the media server, then the actual bandwidth of the media server is further determined, after the media server is allocated to a conference terminal, the estimated bandwidth is updated, after the conference terminal is successfully connected with the media server, the actual bandwidth of the media server is updated, the problem that performance bottleneck is caused when a large number of conference terminals are simultaneously accessed into the same media server is solved, the access speed of the conference terminal can be increased, and the media server with the smallest load can be selected for allocation when the requirement is not met, so that the overload condition of the media server is avoided, resources can be efficiently and reasonably allocated, and resource waste is avoided;
(2) the media server is acquired by separating the acquisition and the playing, namely, the acquisition and the playing may not be the same media server, so that the quality and the playing speed of the image are ensured, and the problem of unsmooth video is solved;
(3) when the actual bandwidth of the media service is smaller than a certain threshold value, the actual bandwidth is reported to the video conference management node in time, so that the video conference management node can be directly avoided when the media server is distributed next time, the calculation amount is reduced, and the distribution speed is improved.
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Fig. 1 is a flowchart of a terminal access method of a distributed video conference system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a terminal access method of a distributed video conference system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of a terminal access method of a distributed video conference system according to an embodiment of the present invention.
In one embodiment of the present invention, as shown in fig. 2, a distributed video conferencing system may comprise: the video conference system comprises a video conference management node, a plurality of video conference media servers and a plurality of video conference terminals, wherein the video conference terminals send conference joining requests to the video conference management node, the requests carry own network bandwidth and conference ID, the video conference management node stores the estimated bandwidth of the plurality of video conference media servers, the corresponding video conference media servers are determined according to the conference ID, if the estimated bandwidth of the video conference media servers is larger than or equal to the network bandwidth of a link of a conference request, the video conference media servers further compare the actual bandwidth of the video conference media servers with the network bandwidth of the link of the conference request, and then the video conference media servers distributed to the video conference terminals are determined. The method for terminal access is described in detail below.
As shown in fig. 1, a terminal access method of a distributed video conference system according to an embodiment of the present invention may include the following steps:
and S1, the current conference terminal acquires the network bandwidth and conference ID of the link joining the conference request.
In one embodiment of the invention, the current conference terminal respectively acquires the network bandwidth of the acquisition request link and the network bandwidth of the play request link; and the video conference management node allocates a media server for the acquisition request link/the playing request link according to the network bandwidth of the acquisition request link/the network bandwidth of the playing request link respectively.
Specifically, when a conference terminal needs to join a video conference, the uplink and downlink bandwidths of the conference terminal are obtained, a proper resolution and a proper code stream are selected for collection, a collection request and a play request are separated, and the network bandwidths of a link of the collection request and a link of the play request may be the same or different. Therefore, the media servers need to be acquired according to respective network bandwidths, and may or may not be the same. Taking the example of first obtaining the media server corresponding to the acquisition request link and then obtaining the media server corresponding to the play request link, after obtaining the corresponding media server according to the network bandwidth of the acquisition request link, it can be determined whether the actual bandwidth of the media server corresponding to the acquisition request link can simultaneously meet the requirement of the network bandwidth of the play request link. If the actual bandwidth of the media server corresponding to the link of the current acquisition request is greater than or equal to the sum of the network bandwidth of the link of the acquisition request and the network bandwidth of the link of the playing request, the acquisition request link and the playing request link can use the same media server; and if the actual bandwidth of the media server corresponding to the link of the current acquisition request is less than the sum of the network bandwidth of the link of the acquisition request and the network bandwidth of the link of the playing request, the acquisition request link and the playing request link do not use the same media server. By adopting the mode of separately acquiring the media server by the acquisition request and the playing request, the quality of the video image and the speed of video playing can be ensured, and the situation of blocking can not occur.
It should be noted that, in the above embodiment, the media server corresponding to the acquisition request link is obtained first, and then the media server corresponding to the play request link is obtained, in other embodiments of the present invention, the media server corresponding to the play request link may be obtained first, and then the media server corresponding to the acquisition request link may be obtained, and the media server corresponding to the acquisition request link and the media server corresponding to the play request link may also be obtained simultaneously. In addition, the network bandwidth in step S1 may be the uplink bandwidth of the link that collects the request or plays the request, i.e. the maximum consumed bandwidth.
And S2, the video conference management node acquires the corresponding media server according to the conference ID.
In general, the conference ID has a directly corresponding media server, and when the conference terminal is accessed, the corresponding media server is preferentially obtained according to the conference ID, that is, when the actual bandwidth of the media server corresponding to the conference ID meets the requirement, the media server is preferentially allocated to the current conference terminal to join the link of the conference request.
S3, the current media server obtains its actual bandwidth.
In an embodiment of the present invention, when the video conference management node acquires the media server corresponding to the conference ID, a request is sent to the media server, so that the media server sends its actual bandwidth to the video conference management node. That is to say, the estimated bandwidth of each media server is stored in the video conference management node, and the actual bandwidth of each media server needs to be acquired by itself, so that the accuracy can be improved, and the media server is prevented from being overloaded.
And S4, when judging that the estimated bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, the video conference management node further judges whether the actual bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, wherein when the actual bandwidth of the current media server is greater than or equal to the network bandwidth of the current link, the current media server is allocated to the current conference terminal to join the link of the conference request.
Specifically, since the estimated bandwidth of each media server is stored in the video conference management node, in general, the difference between the estimated bandwidth and the actual bandwidth is not large, and in order to reduce the amount of computation and increase the access speed of the conference terminal, when the video conference management node obtains the corresponding media server according to the conference ID, it first determines whether the media server can be allocated to the link of the current conference terminal for joining the conference request according to the estimated bandwidth of the media server (i.e., the current media server). If the estimated bandwidth of the media server is greater than or equal to the network bandwidth of the current link, further acquiring the actual bandwidth of the media server, and when the actual bandwidth of the media server is greater than or equal to the network bandwidth of the current link, it indicates that the actual bandwidth of the media server corresponding to the conference ID can meet the link of the current conference terminal joining the conference request. The video conference management node sends the IP address and the port of the media server to the current conference terminal, after the current conference terminal is successfully connected with the media server, the actual consumed bandwidth of the current conference terminal is sent to the video conference management node, so that the video conference management node can update the estimated bandwidth and the actual bandwidth of the media server in time, for example, the network bandwidth of a current link is 1.9M, the estimated bandwidth of the media server is 3M, the actual bandwidth is 3.2M, after the connection is successful, the actual consumed bandwidth of the current conference terminal is 2M, the video conference management node updates the estimated bandwidth of the media server to 1M, the actual bandwidth to 1.2M, and when the connection is disconnected, the video conference management node updates the estimated bandwidth of the media server to 3M, and the actual bandwidth to 3.2M.
Therefore, the mode of comparing the estimated bandwidths of a plurality of multimedia servers is adopted, the problem of performance bottleneck caused by the fact that a large number of conference terminals are simultaneously accessed into the same conference media node can be solved, and meanwhile, the resources can be efficiently and reasonably distributed.
According to an embodiment of the present invention, the videoconference management node is further configured to, when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, obtain the estimated bandwidths of other media servers except the current media server; taking the media server corresponding to the estimated maximum bandwidth value as an alternative media server; and when the estimated bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link and the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal for joining the conference request.
Specifically, in the first case, when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, the videoconference management node does not further determine the actual bandwidth of the current media server and the network bandwidth of the current link, but directly obtains the maximum value of the estimated bandwidths of the multiple media servers, and takes the media server corresponding to the maximum value as the alternative media server. At this time, if the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, the alternative media server is allocated to the link of the current conference terminal joining the conference request. In the second case, when the estimated bandwidth of the current media server is greater than or equal to the network bandwidth of the current link and the actual bandwidth of the current media server is less than the network bandwidth of the current link, the media server is allocated to the link for the conference terminal to join the conference request in a manner of directly obtaining the maximum value of the estimated bandwidths of the multiple media servers and taking the media server corresponding to the maximum value as the alternative media server. That is, the link with the smallest load (the largest actual bandwidth) among the plurality of media servers is allocated to the current conference terminal to join the conference request, so that the media servers are prevented from being overloaded, and the servers are efficiently utilized.
Further, according to an embodiment of the present invention, the video conference management node is further configured to, when receiving a conference terminal join request again, determine whether an estimated bandwidth of the alternative media server is greater than or equal to a network bandwidth of a link where the current conference terminal joins the conference request; if the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link, further judging whether the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link; and when the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal for joining the conference request.
That is to say, according to the manner of the above embodiment, the media server with the smallest load is selected as the alternative media server, and after the conference terminal is successfully connected, the video conference management node updates the estimated bandwidth and the actual bandwidth of the alternative media server according to the actual consumed bandwidth of the conference terminal. When a request for joining the conference is received again, directly comparing the network bandwidth of the link with the estimated bandwidth of the alternative media server, when the estimated bandwidth of the alternative media server is greater than or equal to the network bandwidth of the link, further judging whether the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the link, and if so, allocating the alternative media server to the conference terminal; if the estimated bandwidth of the alternative media server is smaller than the network bandwidth of the link, the maximum estimated bandwidth of the multiple media servers is further obtained to serve as a new alternative media server, and then judgment is carried out according to the logic. This can increase the distribution speed and avoid overloading the media server.
According to another embodiment of the present invention, the videoconference management node is further configured to, when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, sequentially obtain the minimum values of the estimated bandwidth and the actual bandwidth of other media servers except the current media server; comparing the minimum values of the estimated bandwidth and the actual bandwidth of other media servers with the network bandwidth of the current link in sequence; and when the minimum value of the estimated bandwidth and the actual bandwidth of other media servers is greater than or equal to the network bandwidth of the current link, allocating the media server corresponding to the minimum value to the link of the current conference terminal for joining the conference request.
Specifically, in addition to the manner mentioned in the above embodiment of directly obtaining the media server with the largest estimated bandwidth as the alternative server, the actual bandwidths and the estimated bandwidths of other media servers except the media server corresponding to the current conference ID may be sequentially obtained, the minimum values of the actual bandwidths and the estimated bandwidths of other media servers may be obtained, and then, the actual bandwidths and the estimated bandwidths of other media servers are sequentially compared with the network bandwidth of the current link, and the media server corresponding to the minimum value of the network bandwidth greater than or equal to the current link is allocated to the link, to which the current conference terminal joins the conference request, so that the media server can be efficiently utilized.
In another embodiment of the present invention, if the videoconference management node does not obtain the corresponding media server according to the conference ID, it determines whether to join the link requested by the conference for the current conference terminal according to the estimated bandwidth and the actual bandwidth of the media server with the largest estimated bandwidth among the multiple media servers.
According to an embodiment of the present invention, the video conference management node is further configured to update the estimated bandwidth of the current media server when the current media server is allocated to the link of the current conference terminal joining the conference request, or the current conference terminal is disconnected from the media server; the media server is further configured to update the actual bandwidth of the media server when the current conference terminal is successfully connected or disconnected with the media server.
That is to say, when the video conference management node allocates the media server to the conference terminal, the video conference management node updates the pre-estimated bandwidth of the media server stored in the video conference management node, so that the problem of performance bottleneck caused when a large number of conference terminals access the same media server at the same time can be avoided. The video conference management node is also used for updating the pre-estimated bandwidth of the current media server when the current conference terminal is disconnected with the media server. The current media server is further configured to update the actual bandwidth of the media server according to the actual consumed bandwidth of the conference terminal after the conference terminal is successfully connected or disconnected with the media node server.
As a specific example of the present invention, as shown in fig. 2, a conference terminal sends a collection request to join a conference, the conference terminal has a conference ID and a network bandwidth of a link, a video conference management node stores estimated bandwidths of a plurality of media servers, the video conference management node finds a media server a according to the conference ID, if the estimated bandwidth of the media server a is greater than or equal to the network bandwidth of the link, the video conference management node sends an actual bandwidth of the media server a, the media server a sends the actual bandwidth of the media server a to the video conference management node, the video conference management node determines whether the actual bandwidth of the media server a is greater than or equal to the network bandwidth of the link, if so, the IP address and the port of the media server a are sent to the conference terminal, at this time, the video conference management node updates the estimated bandwidth of the media server a, and after the conference terminal is successfully connected with the media server a, the media server A creates a session with the conference terminal, and the conference terminal sends the actual consumed bandwidth to the media server, so that the media server A can update the actual bandwidth of the media server A (which is equivalent to the actual bandwidth being reduced).
A conference terminal sends a play request to join a conference, a conference ID (the same as the conference ID in the acquisition request) and the network bandwidth of a link are carried, a media server A is found by a video conference management node according to the conference ID, if the estimated bandwidth of the media server A is smaller than the network bandwidth of the link, a media server with the largest estimated bandwidth in a plurality of media servers is searched, if the media server B is assumed to be the media server B, the actual bandwidth of the media server B is sent to the video conference management node, the video conference management node judges whether the actual bandwidth of the media server B is larger than or equal to the network bandwidth of the link, if the actual bandwidth of the media server B is larger than or equal to the network bandwidth of the link, the IP address and the port of the media server B are sent to the conference terminal, at the moment, the video conference management node updates the estimated bandwidth of the media server A, and after the conference terminal is successfully connected with the media server B, the media server B establishes a session with the conference terminal, and the conference terminal sends the actual consumed bandwidth to the media server B, so that the media server B can update the actual bandwidth of the media server B conveniently.
After the acquisition request is stopped, the media server A deletes the session, updates the actual bandwidth of the media server A (which is equivalent to the increase of the actual bandwidth), and the video conference management node updates the estimated bandwidth of the media server A. After the playing request is stopped, the media server B deletes the session, updates its own actual bandwidth (which is equivalent to the increase of the actual bandwidth), and the video conference management node updates the estimated bandwidth of the media server B.
In summary, when a request for joining a conference is received, the corresponding media server is determined according to the conference ID, whether the media server is allocated is determined according to the estimated bandwidth of the media server, and then the determination is further performed according to the actual bandwidth of the media server, so that the access speed of the conference terminal can be increased, and the media server with the smallest load can be selected for allocation when the requirement is not met, thereby solving the problem of performance bottleneck caused by simultaneous access of a large number of conference terminals to the same media server, avoiding the overload condition of the media server, efficiently and reasonably allocating resources, and avoiding resource waste; the media server is acquired by separating the acquisition and the playing, namely, the acquisition and the playing may not be the same media server, so that the quality and the playing speed of the image are ensured, and the problem of unsmooth video is solved; when the actual bandwidth of the media service is smaller than a certain threshold value, the actual bandwidth is reported to the video conference management node in time, so that the video conference management node can be directly avoided when the media server is distributed next time, the calculation amount is reduced, and the distribution speed is improved.
In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (6)
1. A terminal access method of a distributed video conference system is characterized in that the system comprises: a video conference management node, a plurality of media servers and a plurality of conference terminals, the method comprising the steps of:
the current conference terminal acquires the network bandwidth and conference ID of a link joining a conference request;
the video conference management node acquires the corresponding media server according to the conference ID;
the current media server obtains the actual bandwidth of the current media server;
when the video conference management node judges that the estimated bandwidth of the current media server is larger than or equal to the network bandwidth of the current link, the video conference management node further judges whether the actual bandwidth of the current media server is larger than or equal to the network bandwidth of the current link, wherein,
when the actual bandwidth of the current media server is larger than or equal to the network bandwidth of the current link, allocating the current media server to the link of the current conference terminal for joining the conference request; wherein the content of the first and second substances,
the current acquiring, by the conference terminal, the network bandwidth of the link joining the conference request specifically includes:
the current conference terminal respectively acquires the network bandwidth of the acquisition request link and the network bandwidth of the playing request link;
the acquiring, by the video conference management node, the corresponding media server according to the conference ID specifically includes:
and the video conference management node allocates the media server to the acquisition request link/the playing request link according to the network bandwidth of the acquisition request link/the network bandwidth of the playing request link respectively.
2. The terminal access method of the distributed video conference system according to claim 1, wherein said video conference management node is further configured to,
when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, acquiring the estimated bandwidth of other media servers except the current media server;
taking the media server corresponding to the estimated maximum bandwidth value as an alternative media server;
and when the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal joining the conference request.
3. The terminal access method of the distributed video conference system according to claim 2, wherein said video conference management node is further configured to,
when the conference terminal joining request is received again, judging whether the estimated bandwidth of the alternative media server is larger than or equal to the network bandwidth of the link of the current conference terminal joining request;
if the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link, further judging whether the actual bandwidth of the alternative media server is larger than or equal to the network bandwidth of the current link;
and when the actual bandwidth of the alternative media server is greater than or equal to the network bandwidth of the current link, allocating the alternative media server to the link of the current conference terminal joining the conference request.
4. The terminal access method of the distributed video conference system according to claim 1, wherein said video conference management node is further configured to,
when the estimated bandwidth of the current media server is smaller than the network bandwidth of the current link, or the actual bandwidth of the current media server is smaller than the network bandwidth of the current link, sequentially acquiring the minimum values of the estimated bandwidth and the actual bandwidth of other media servers except the current media server;
comparing the minimum values of the estimated bandwidth and the actual bandwidth of other media servers with the network bandwidth of the current link in sequence;
and when the minimum value of the estimated bandwidth and the actual bandwidth of other media servers is greater than or equal to the network bandwidth of the current link, allocating the media server corresponding to the minimum value to the link of the current conference terminal for joining the conference request.
5. The terminal access method of the distributed video conference system according to claim 1,
the video conference management node is further configured to update the estimated bandwidth of the current media server when the current media server is allocated to a link of the current conference terminal for joining a conference request, or when the current conference terminal is disconnected from the media server;
the media server is further configured to update the actual bandwidth of the media server when the current conference terminal is successfully connected or disconnected with the media server.
6. The terminal access method of the distributed video conference system as claimed in claim 5, wherein said media server is further configured to,
and when the actual bandwidth is smaller than a preset threshold value, sending a distribution stopping signal to the video conference management node.
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Denomination of invention: Terminal access methods for distributed video conferencing systems Granted publication date: 20211109 Pledgee: China Zheshang Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu huaiye Information Technology Co.,Ltd. Registration number: Y2024980003042 |