CN103023731B - A kind of subtended conference implementation method and system - Google Patents
A kind of subtended conference implementation method and system Download PDFInfo
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- CN103023731B CN103023731B CN201210496654.9A CN201210496654A CN103023731B CN 103023731 B CN103023731 B CN 103023731B CN 201210496654 A CN201210496654 A CN 201210496654A CN 103023731 B CN103023731 B CN 103023731B
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Abstract
The present invention discloses a kind of subtended conference implementation method and system, the cascading topological structure of described subtended conference comprises point-to-point cascade, master-slave cascade, or it is point-to-point with principal and subordinate's Mixed cascading, the method comprising the steps of A, the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference; Step B, from the meeting corresponding to described root node, according to the level of described first tree topology, the content that described initiator is broadcasted successively to be broadcasted.The present invention by above technical scheme, solve the subtended conference of prior art cannot realize overall situation broadcast choosing see the problem of function.
Description
Technical field
The present invention relates to video conference field, particularly relate to a kind of subtended conference implementation method and system.
Background technology
In video conference system, due to single MCU(Multipoint process unit) reason such as capacity limit, rights management of server, often need combination multiple stage MCU to hold relatively large video conference together.Therefore the meeting held on each MCU is needed to become a subtended conference according to certain principal and subordinate and/or point-to-point composition of relations.The participant of this type of meeting is distributed in each different MCU, and the common function therefore in some single-stage meeting is difficult to realize, and such as overall situation broadcast is selected with the overall situation and seen function.
Summary of the invention
The invention provides a kind of subtended conference implementation method and system, solve the subtended conference of prior art cannot realize overall situation broadcast choosing see the problem of function.
For solving the problems of the technologies described above, the present invention by the following technical solutions:
A kind of subtended conference implementation method, the cascading topological structure of described subtended conference comprises point-to-point cascade, master-slave cascade, or it is point-to-point with principal and subordinate's Mixed cascading, described subtended conference implementation method comprises: steps A, the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference; Step B, from the meeting corresponding to described root node, according to the level of described first tree topology, the content that described initiator is broadcasted successively to be broadcasted.
Further, described step B is specially: locally broadcast is carried out in step B1, meeting corresponding to described root node; Step B2, travel through lower one deck node of described first tree topology; In step B3, the meeting corresponding to each node respectively on described lower one deck, the cascade port of last layer node is carried out locally broadcast as initiator, after this layer of each node all completes locally broadcast, judge whether to exist and descend one deck node again, if exist, then enter step B2, otherwise, process ends.
Further, described subtended conference implementation method also comprises: step C, described initiator carry out overall situation choosing in described subtended conference to be seen.Further, described step C comprises: step C1, obtain initiator place meeting described in described first tree topology to target choosing see end place meeting between path; Step C2, level according to the path got, to the selected content seen from end place meeting is seen in described target choosing, successively select to described initiator place meeting and see operation.
Further, described step C1 is specially: step C11, the meeting of described initiator place press-in stack top; Step C12, search in stack top meeting whether exist described target choosing see end, if exist described target choosing see end, then obtain path; If there is not the choosing of described target to see end, then judge whether to there is lower one deck node, if exist, then enter step C13, if do not exist, enter step C14; Step C13, by meeting corresponding for the arbitrary node on described lower one deck press-in stack top, enter step C12; Step C14, stack is ejected in the meeting of current stack top, judge to eject whether stack after stack is sky, if so, then flow process terminates; If stack is not empty, then enter step C15; Step C15, judge whether to exist and be not pressed into the sibling of stack by the same layer of meeting of popping, if exist, then by meeting corresponding for the arbitrary sibling not being pressed into stack in same layer press-in stack, enter step C12, if there is not the node of same layer, then enter step C14.
Further, described step C2 is specially: step C21, carry out in stack top meeting local choosing see operation; Step C22, meeting to be ejected from stack top, the cascade port being ejected meeting is seen end as the choosing of new stack top, carry out local choosing and see operation, until stack be sky.
Further, described subtended conference implementation method, before described steps A, also comprises: the cascading topological structure configuring subtended conference to be held; A top layer meeting is found out from the cascading topological structure of subtended conference described to be held, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held; According to described second tree topology, configure corresponding topological relation between the Multipoint process unit waiting to hold each meeting; From the root node of described second tree topology, hold each meeting in described second tree topology successively according to order from top to bottom, from left to right.
A kind of subtended conference realizes system, the cascading topological structure of described subtended conference comprises point-to-point cascade, master-slave cascade, or it is point-to-point with principal and subordinate's Mixed cascading, described subtended conference realizes system and comprises the first tree topology and set up module and overall Broadcasting Control module, wherein, described first tree topology sets up module for the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference, described overall Broadcasting Control module is used for from the meeting corresponding to described root node, according to the level of described first tree topology, successively broadcasts the content that described initiator is broadcasted.
Further, described subtended conference realize system also comprise the overall situation choosing see control module, for described initiator carry out in described subtended conference the overall situation select see.
Subtended conference as claimed in claim 8 realizes system, it is characterized in that, described overall situation choosing sees that control module comprises path acquisition module and control submodule is seen in overall situation choosing, wherein, described path acquisition module sees the path of holding between the meeting of place for obtaining initiator place meeting described in described first tree topology to target choosing; Described overall situation choosing is seen and is controlled the level in path of submodule for getting according to described path acquisition module, to the selected content seen from end place meeting is seen in described target choosing, successively selects see operation to described initiator place meeting.
Further, described subtended conference realizes that system also comprises cascading topological structure configuration module, the second tree topology sets up module, Multipoint process cell location module and subtended conference hold module, wherein: described cascading topological structure configuration module is for configuring the cascading topological structure of subtended conference to be held; Described second tree topology sets up module for finding out a top layer meeting in the cascading topological structure from subtended conference described to be held, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held; Described Multipoint process cell location module is used for according to described second tree topology, configures corresponding topological relation between the Multipoint process unit waiting to hold each meeting; Described subtended conference holds module for the root node from described second tree topology, holds each meeting in described second tree topology successively according to order from top to bottom, from left to right.
The invention provides a kind of subtended conference implementation method and system, the cascading topological structure of subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of this first tree topology, other node one_to_one corresponding of other meetings and the first tree topology, again from the meeting corresponding to this root node, according to the level of this first tree topology, the content that this initiator is broadcasted successively is broadcasted.The present invention can the MCU of each different vendor compatible, manufacturer is only needed to provide MCUAPI control interface agreement, the concrete agreement of holding a meeting with MCU (H.320 H323 SIP) is irrelevant, the point-to-point cascade of support point subtended conference (also known as simple cascade), master-slave cascade, the point-to-point pattern with principal and subordinate's Mixed cascading.
Further, the present invention can also realize initiator in subtended conference the overall situation choosing see.
Accompanying drawing explanation
The flow chart of the subtended conference implementation method that Fig. 1 provides for one embodiment of the invention;
The schematic diagram of the cascading topological structure that Fig. 2 provides for one embodiment of the invention;
The schematic diagram of second tree topology of Fig. 3 a for obtaining after the conversion of cascading topological structure shown in Fig. 2;
The schematic diagram of another second tree topology of Fig. 3 b for obtaining after the conversion of cascading topological structure shown in Fig. 2;
The schematic diagram of another second tree topology of Fig. 3 c for obtaining after the conversion of cascading topological structure shown in Fig. 2;
The schematic diagram of first tree topology of Fig. 4 a for obtaining after the conversion of cascading topological structure shown in Fig. 2;
The schematic diagram of another first tree topology of Fig. 4 b for obtaining after the conversion of cascading topological structure shown in Fig. 2;
Fig. 5 realizes the schematic diagram of system for subtended conference that one embodiment of the invention provides.
Embodiment
Central scope of the present invention is: the cascading topological structure of existing subtended conference has point-to-point cascade, master-slave cascade, the point-to-point pattern with principal and subordinate's Mixed cascading, no matter be which kind of pattern, this cascading topological structure is converted to the first tree topology by the present invention, the meeting initiating the initiator place of overall situation broadcast is the root node of the first tree topology, other node one_to_one corresponding of other meetings and the first tree topology, again from the meeting corresponding to this root node, according to the level of this tree topology, the content that this initiator is broadcasted successively is broadcasted.
Specific cascade connection can be formed between any two meetings, but when meeting number increases, its cascade connection more complicated.The cascading topological structure of current subtended conference comparatively common are: point-to-point cascade, master-slave cascade, point-to-point with principal and subordinate's Mixed cascading.Wherein,
Point-to-point cascade refers to: between two MCU, all the other side is regarded as a common terminal, all sends order to the other side, instead of request, and arbitrary MCU does not process the order that another MCU sends, and directly ignores, therefore, the pattern of point-to-point cascade, a lot of function cannot realize.
Master-slave cascade refers to: a side is the meeting that main MCU(holds on main MCU is main meeting, otherwise perform the MCU of main meeting, be main MCU), an other side be from MCU(in the meeting held from MCU for from meeting, otherwise perform from the MCU of meeting be from MCU).Master slave relation can consult to determine by h245MasterSlaveDetermination, and during master-slave negotiation, determine principal and subordinate by 2 data, data are NE type, and another one data are a random value.H323 agreement has defined the size of the numerical value that network element should be filled in.In negotiations process, what NE type value was large is main, if network element values is identical, then determines principal and subordinate according to the size of random value, and what random value was large is main.Therefore between MCU and terminal, based on the regulation of H323 agreement, MCU is main forever.And between 2 MCU, then according to random value determine who main who from.For main MCU, the link from MCU is regarded as a common terminal, directly sends instruction to it.For from MCU, the order carrying out autonomous MCU must be performed or is transmitted to the MCU of its more next stage.For the request carrying out self terminal, if (if overall situation broadcast) that the overall situation is unique, must this request forward to main MCU.Namely can only guarantee that oneself only sends request to main MCU from MCU.Master slave relation is relative, and in a subtended conference be made up of the meeting of more than 3 or 3, the MCU of the node that mediates is sometimes main, be sometimes from, see it is relative to which MCU.Such as MCU1 → MCU2 → MCU3, between MCU1 → MCU2, MCU2 be from, between MCU2 → MCU3, MCU2 is main.
Point-to-pointly to refer to principal and subordinate's Mixed cascading: in subtended conference, by point-to-point cascade between some meeting, before some meeting, pass through master-slave cascade.
Initiator refers to: certain participant of subtended conference, and the data of oneself (video, audio frequency etc.) are broadcasted away, and make the participant of whole subtended conference can see, hear, this participant is called initiator.
Target choosing sees that end refers to: initiator selects a participant from the participant subtended conference, watches this by the data (video, audio frequency etc.) of participant selected, be broadcasted end select the participant seen to be called end is seen in target choosing.
Locally broadcast refers to: the scope of broadcast is in active conference, and cascade port not conference participation forwards.
Local choosing is seen and is referred to: initiator selects a participant from the meeting at its place, watches this by the data (video, audio frequency etc.) of participant selected, does not select the data (video, audio frequency etc.) of the participant seeing meeting belonging to cascade port.
Overall situation broadcast refers to: the data (video, audio frequency etc.) of initiator are not only broadcasted participant's viewing of end place meeting, hear, and the participant of conference cascade mouth place meeting can watch, hear, the participant of whole subtended conference can watch, hear then.
Overall situation choosing is seen and is referred to: initiator selects the participant seen to be not limited to the participant of initiator place meeting, and can also be other participant under cascade port, the participant of whole subtended conference can selectedly see.
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
The flow chart of the subtended conference implementation method that Fig. 1 provides for one embodiment of the invention, this subtended conference implementation method comprises following flow process:
The cascading topological structure of S101, configuration subtended conference.This step is mainly summarised as: the cascading topological structure configuring subtended conference to be held, and based on this cascading topological structure, each Meeting Held is got up, form the subtended conference based on this topological structure, the cascading topological structure wait the subtended conference of holding before configured, after subtended conference is held, has just become the cascading topological structure of subtended conference.
Concrete, this step can comprise following flow process:
S101a, user are in the number of management center server according to predetermined participant, and the relation between participant, configure the cascading topological structure of subtended conference to be held, this cascading topological structure can be: point-to-point cascade, master-slave cascade or, the point-to-point pattern with principal and subordinate's Mixed cascading.
Cascading topological structure as shown in Figure 2, wherein A, B, C, D, E, F represent a meeting to be held respectively, line between meeting to be held represents the path between meeting, the present embodiment is supposed between C and B, is point-to-point cascade between D and B, it is master-slave cascade between A and B, between A and F, between B and E, between E and F, so shown in Fig. 2 is the subtended conference of Mixed cascading pattern, and defines ABEF loop.This topological structure also can be used for representing the MCU of hold a meeting respectively A, B, C, D, E, F
a, MCU
b, MCU
c, MCU
d, MCU
e, MCU
fbetween cascading topological structure.
S101b, from the cascading topological structure of subtended conference described to be held, find out a top layer meeting, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held.After being converted to the second tree topology, do not change point-to-point, the master-slave cascade relation between the meeting that configures in S101a, be only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.
Top layer meeting refers to the meeting without any main meeting, and meeting as not main in C, D, the A in Fig. 2, so all can be used as top layer meeting.And due to B be A from meeting, so B can not as top layer meeting, E be B from meeting, so E can not as top layer meeting, due to F be E, A from meeting, so F can not as top layer meeting.Suppose that the cascading topological structure configured in S101a is for shown in Fig. 2, so in S101b can from C, D, A an optional root node as the second tree topology.Suppose to take A as root node, the second tree topology so converted to by the cascading topological structure shown in Fig. 2 is as shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, wherein, Fig. 3 a, Fig. 3 b are the second tree topology that extreme saturation is formed, and Fig. 3 c is the second tree topology that level traversal is formed.No matter take which kind of mode to convert the second tree topology to, after being converted to the second tree topology, what do not change between the meeting that configures in S101a is point-to-point, master-slave cascade relation, only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique, that is in the second tree topology, between C and B, it is still point-to-point cascade between D and B, between A and B, between A and F, between B and E, it is still master-slave cascade between E and F, cascade connection can not change, second tree topology is only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.
S101c, according to described second tree topology, configure corresponding topological relation between the MCU waiting to hold each meeting.Due to, after being converted to the second tree topology, do not change the cascade connection between the meeting that configures in S101a, therefore, this step is consistent with the cascade connection between the meeting configured in step S101a to waiting to hold the topological relation configured between the MCU of each meeting.
Concrete configuration mode is as follows: give master-slave negotiation random value to the meeting corresponding to each node of the second tree topology, because the NE type value of MCU is identical, therefore the master-slave negotiation random value given for user of master slave relation between MCU is determined, to the principle that node each in the second tree topology gives master-slave negotiation random value be: when two nodes are point-to-point cascade connection, give identical random value; When two nodes are master-slave cascade relation, according to level and the master slave relation of tree, often decline or rising one deck, the random value as main meeting adds 1, subtracts 1 as the random value from meeting.Can ensure in the process set up at communication link like this, hierarchical structure in strict accordance with tree negotiates master slave relation between meeting and meeting or point-to-point relation, and the configuration consistency in the master slave relation between meeting and meeting, point-to-point relation and S101a.
For the second tree topology shown in Fig. 3 a, according to mentioned above principle, suppose to root node (MCU
a) give random value N, the B that lower one deck node is corresponding be A from meeting, so give MCU
bgive random value N-1, descend C, D and E that one deck node is corresponding again, due to E be B from meeting, so to MCU
egiving random value N-2, is point-to-point cascade between C, D and B, therefore gives MCU
c, MCU
dgive respectively and MCU
bidentical random value, i.e. N-1, then the F that lower one deck node is corresponding, due to F be E from meeting, so give MCU
fgive random value N-3.After giving random value according to mentioned above principle, the cascade connection between each meeting determined by the size of random value is still constant.
S101d, from the root node of described second tree topology, hold each meeting in described second tree topology successively according to order from top to bottom, from left to right.After Meeting Held, from the root node of tree, from top to bottom, set up communication link, comprise the communication link between MCU and terminal, MCU and MCU.The cascading topological structure wait the subtended conference of holding before configured, after subtended conference is held, has just become the cascading topological structure of subtended conference.Preferably, same MCU only holds 1 meeting.
Step S101 configures the process of cascading topological structure, the difference holding process with common conference is, holding of meeting is orderly, and give random value by predetermined principle, make in the process of master-slave negotiation, can be correct negotiate master slave relation, and common conference hold in process, the process of holding of each meeting is independently, and the imparting of random value is random, uncontrollable master slave relation.
S102, the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference.The initiator of initiation overall situation broadcast can be any terminal in subtended conference in arbitrary meeting, and different according to the meeting initiating the initiator place that the overall situation is broadcasted, the first tree topology is also different.After being converted to the first tree topology, equally, do not change point-to-point, the master-slave cascade relation between the meeting that configures in S101, be only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.
Suppose that the cascading topological structure configured in S101 is for shown in Fig. 2, and the initiator of initiating overall situation broadcast is a terminal in meeting B, root node so using B as the first tree topology in S102, the first tree topology converted to by the cascading topological structure shown in Fig. 2 is as shown in Fig. 4 a, Fig. 4 b.No matter take which kind of mode to convert the second tree topology to, after being converted to the second tree topology, do not change point-to-point, the master-slave cascade relation between the meeting that configures in S101, be only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.
S103, from the meeting corresponding to described root node, according to the level of described first tree topology, the content that described initiator is broadcasted to be broadcasted step by step.
Preferably, step S103 takes mode overall situation broadcast being split into multiple locally broadcast to realize, and is specifically as follows:
Locally broadcast is carried out in step B1, meeting corresponding to described root node;
Step B2, travel through lower one deck node of the first tree topology; If this lower one deck has multiple node, carry out the operation of step B3 so respectively;
In step B3, the meeting corresponding to each node respectively on described lower one deck, the cascade port of last layer node is carried out locally broadcast as initiator, after this layer of each node all completes locally broadcast, judge whether to exist and descend one deck node again, if exist, then enter step B2, otherwise, process ends.
For the first tree topology shown in Fig. 4 a, the initiator of initiation overall situation broadcast is a terminal in meeting B, and step S103 is specifically as follows:
Step B1 ', carry out locally broadcast at meeting B;
Step B2 ', in meeting C, D, E, respectively using the cascade port of meeting B as initiator, carry out locally broadcast;
Step B3 ', in meeting F, using the cascade port of meeting E as initiator, carry out locally broadcast;
Step B4 ', in meeting A, using the cascade port of meeting F as initiator, carry out locally broadcast.
In an alternative embodiment of the invention, also comprise: step 104, initiator carry out overall situation choosing in subtended conference to be seen.In the process performing overall situation broadcast, after obtaining the first tree topology, can know that the path between any 2 meetings is all unique, there is no loop, that is, the meeting of initiator place and target choosing see to hold between the meeting at place to only have unique path to arrive at.Therefore select in the process seen carrying out the overall situation, first need to obtain overall initiator place meeting and target selects the path seen and hold between the meeting of place.Overall situation choosing is seen and can be comprised the following steps:
Step C1, obtain initiator place meeting described in described first tree topology to target choosing see end place meeting between path;
Step C2, level according to the path got, to the selected content seen from end place meeting is seen in described target choosing, successively select to described initiator place meeting and see operation.
Preferably, step 104 specifically can comprise following flow process:
Step C11, the meeting of initiator place press-in stack top;
Step C12, search in stack top meeting whether exist described target choosing see end, if exist described target choosing see end, then obtain path, enter step C21; If there is not the choosing of described target to see end, then judge whether to there is lower one deck node, if exist, then enter step C13, if do not exist, enter step C14;
Step C13, by meeting corresponding for the arbitrary node on described lower one deck press-in stack top, enter step C12;
Step C14, stack is ejected in the meeting of current stack top, judge to eject whether stack after stack is sky, if so, then flow process terminates; If stack is not empty, then enter step C15;
Step C15, judge whether to exist and be not pressed into the sibling of stack by the same layer of meeting of popping, if exist, then by meeting corresponding for the arbitrary sibling not being pressed into stack in same layer press-in stack, enter step C12, if there is not the node of same layer, then enter step C14.
Step C21, carry out in stack top meeting local choosing see operation;
Step C22, meeting is ejected from stack top, the meeting being once pressed into stack top is so exactly new stack top, and the cascade port being ejected meeting is seen end as the choosing of new stack top, carries out local choosing and sees operation, until stack be sky.
For the first tree topology shown in Fig. 4 a, the initiator of initiation overall situation broadcast is a terminal in meeting B, and target choosing sees that end is a terminal in meeting F, and step 104 specifically can comprise following flow process:
Step C11 ', meeting B be pressed into stack top;
Step C12 ', search in stack top meeting B whether exist target choosing see end; because target choosing sees that end is for a terminal in meeting F; therefore search in stack top meeting B less than; lower one deck node whether is there is under then judging meeting B; owing to there is lower one deck node (sibling that C, D, E are corresponding); by meeting corresponding for the arbitrary node on described lower one deck press-in stack top, suppose meeting E to be pressed into stack top, then enter step C13 ';
Step C13 ', search in meeting E whether exist target choosing see end, because target choosing sees that end is for a terminal in meeting F, therefore search in stack top meeting E less than, then whether there is lower one deck node under judging meeting E, owing to there is lower one deck node F, then carry out step C14 ';
Step C14 ', by meeting F corresponding for described lower one deck node be pressed into stack top, search in meeting F and whether there is target choosing and see end, because target choosing sees that end is for a terminal in meeting F, therefore can find in stack top meeting F, return path B → D → E → F, enters step C21 ';
Step C21 ', carry out in stack top meeting local choosing see operation; Because now stack top meeting is F, therefore this step carry out in F exactly local choosing see operation, enter step C22 ' after having operated;
Step C22 ', meeting F is ejected from stack top, the meeting E being once pressed into stack top is so exactly new stack top, and the cascade port being ejected meeting F is seen end as the choosing of new stack top meeting E, carries out local choosing and sees operation, enter step C23 ' after having operated;
Step C23 ', meeting E is ejected from stack top, the meeting B being once pressed into stack top is so exactly new stack top, and the cascade port being ejected meeting E is seen end as the choosing of new stack top meeting B, carries out local choosing and sees operation, enter step C24 ' after having operated;
Step C24 ', meeting B is ejected from stack top, stack is empty, and flow process terminates.
The present invention also provides a kind of subtended conference to realize system, and this system can be arranged on management center server, and this management center server manages each MCU held a meeting.Fig. 5 realizes the schematic diagram of system for subtended conference that one embodiment of the invention provides, as shown in Figure 5, this subtended conference realizes system and comprises the first tree topology and set up module 51 and overall Broadcasting Control module 52, wherein, the cascading topological structure of subtended conference comprises point-to-point cascade, master-slave cascade, or point-to-point with principal and subordinate's Mixed cascading.
First tree topology sets up module 51 for the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference.The initiator of initiation overall situation broadcast can be any terminal in subtended conference in arbitrary meeting, and different according to the meeting initiating the initiator place that the overall situation is broadcasted, the first tree topology is also different.After being converted to the first tree topology, equally, do not change point-to-point, master-slave cascade relation between meeting in the front cascading topological structure of conversion, be only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.
Overall situation Broadcasting Control module 52, for from the meeting corresponding to described root node, according to the level of described first tree topology, is successively broadcasted the content that described initiator is broadcasted.Preferably, overall Broadcasting Control module 52 carry out successively broadcast mode can with reference to above-mentioned steps B1 to B3.
Further, this subtended conference realize system also comprise the overall situation choosing see control module 53, for described initiator carry out in described subtended conference the overall situation select see.Preferably, overall choosing sees that control module 53 may further include path acquisition module 531 and control submodule 532 is seen in overall situation choosing, wherein
Path acquisition module 531 sees the path of holding between the meeting of place for obtaining initiator place meeting described in described first tree topology to target choosing.Preferably, path acquisition module 531 carry out the mode of path acquisition can with reference to above-mentioned steps C11 to C13.
Overall situation choosing is seen and is controlled the level in path of submodule 532 for getting according to path acquisition module 531, to the selected content seen from end place meeting is seen in described target choosing, successively selects see operation to described initiator place meeting.Preferably, overall situation choosing sees that controlling submodule 532 carries out the overall situation according to the path that path acquisition module 531 gets and select the mode seen can with reference to above-mentioned steps C21 to C22.
Further, this subtended conference realizes system and also comprises cascading topological structure configuration module 54, second tree topology and set up module 55, Multipoint process cell location module 56 and subtended conference and hold module 57, wherein:
Cascading topological structure configuration module 54 is for configuring the cascading topological structure of subtended conference to be held; Concrete, for the number of user according to predetermined participant, and the relation between participant, configure the cascading topological structure of subtended conference to be held, described cascading topological structure can be: point-to-point cascade, master-slave cascade or, the point-to-point pattern with principal and subordinate's Mixed cascading.
Second tree topology sets up module 55 for finding out a top layer meeting in the cascading topological structure from subtended conference described to be held, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held.After being converted to the second tree topology, do not change point-to-point, the master-slave cascade relation between meeting that cascading topological structure configuration module 54 configures, be only remove the loop (the ABEF loop as in Fig. 2) in cascading topological structure, make the path between any two meetings unique.Top layer meeting refers to the meeting without any main meeting, and meeting as not main in C, D, the A in Fig. 2, so all can be used as top layer meeting.
Multipoint process cell location module 56 for according to described second tree topology, to configuring corresponding topological relation between the Multipoint process unit of each meeting to be held.Due to, after being converted to the second tree topology, do not change point-to-point, the master-slave cascade relation between meeting that cascading topological structure configuration module 54 configures, therefore, this step is consistent with the cascade connection between the meeting that cascading topological structure configuration module 54 configures to waiting to hold the topological relation configured between the MCU of each meeting.
Subtended conference holds module 57 for the root node from described second tree topology, holds each meeting in described second tree topology successively according to order from top to bottom, from left to right.After Meeting Held, from the root node of tree, from top to bottom, set up communication link, comprise the communication link between MCU and terminal, MCU and MCU.The cascading topological structure wait the subtended conference of holding of cascading topological structure configuration module 54 configuration before, after subtended conference is held, has just become the cascading topological structure of subtended conference.Preferably, same MCU only holds 1 meeting.
Subtended conference implementation method provided by the invention and system, can the MCU of each different vendor compatible, manufacturer is only needed to provide MCUAPI control interface agreement, the concrete agreement (H.320 H323 SIP) of holding a meeting with MCU has nothing to do, and supports point-to-point cascade (also known as simple cascade), master-slave cascade, point-to-pointly broadcast with the overall situation under the pattern of principal and subordinate's Mixed cascading and overall choosing is seen.
Above content is in conjunction with concrete execution mode further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (9)
1. a subtended conference implementation method, the cascading topological structure of described subtended conference comprises point-to-point cascade, master-slave cascade, or point-to-point with principal and subordinate's Mixed cascading, and it is characterized in that, described subtended conference implementation method comprises:
Steps A, the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference;
Step B, from the meeting corresponding to described root node, according to the level of described first tree topology, the content that described initiator is broadcasted successively to be broadcasted;
Before described steps A, also comprise:
Configure the cascading topological structure of subtended conference to be held;
A top layer meeting is found out from the cascading topological structure of subtended conference described to be held, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held;
According to described second tree topology, configure corresponding topological relation between the Multipoint process unit waiting to hold each meeting;
From the root node of described second tree topology, hold each meeting in described second tree topology successively according to order from top to bottom, from left to right.
2. subtended conference implementation method as claimed in claim 1, it is characterized in that, described step B is specially:
Locally broadcast is carried out in step B1, meeting corresponding to described root node;
Step B2, travel through lower one deck node of described first tree topology;
In step B3, the meeting corresponding to each node respectively on described lower one deck, the cascade port of last layer node is carried out locally broadcast as initiator, after this layer of each node all completes locally broadcast, judge whether to exist and descend one deck node again, if exist, then enter step B2, otherwise, process ends.
3. subtended conference implementation method as claimed in claim 1, is characterized in that, also comprise: step C, described initiator carry out overall situation choosing in described subtended conference to be seen.
4. subtended conference implementation method as claimed in claim 3, it is characterized in that, described step C comprises:
Step C1, obtain initiator place meeting described in described first tree topology to target choosing see end place meeting between path;
Step C2, level according to the path got, to the selected content seen from end place meeting is seen in described target choosing, successively select to described initiator place meeting and see operation.
5. subtended conference implementation method as claimed in claim 4, it is characterized in that, described step C1 is specially:
Step C11, the meeting of described initiator place press-in stack top;
Step C12, search in stack top meeting whether exist described target choosing see end, if exist described target choosing see end, then obtain path; If there is not the choosing of described target to see end, then judge whether to there is lower one deck node, if exist, then enter step C13, if do not exist, enter step C14;
Step C13, by meeting corresponding for the arbitrary node on described lower one deck press-in stack top, enter step C12;
Step C14, stack is ejected in the meeting of current stack top, judge to eject whether stack after stack is sky, if so, then flow process terminates; If stack is not empty, then enter step C15;
Step C15, judge whether to exist and be not pressed into the sibling of stack by the same layer of meeting of popping, if exist, then by meeting corresponding for the arbitrary sibling not being pressed into stack in same layer press-in stack, enter step C12, if there is not the node of same layer, then enter step C14.
6. subtended conference implementation method as claimed in claim 5, it is characterized in that, described step C2 is specially:
Step C21, carry out in stack top meeting local choosing see operation;
Step C22, meeting to be ejected from stack top, the cascade port being ejected meeting is seen end as the choosing of new stack top, carry out local choosing and see operation, until stack be sky.
7. a subtended conference realizes system, the cascading topological structure of described subtended conference comprises point-to-point cascade, master-slave cascade, or it is point-to-point with principal and subordinate's Mixed cascading, it is characterized in that, described subtended conference realizes system and comprises the first tree topology and set up module and overall Broadcasting Control module, wherein
Described first tree topology sets up module for the cascading topological structure of described subtended conference is converted to the first tree topology, the meeting initiating the initiator place of overall situation broadcast is the root node of described first tree topology, other node one_to_one corresponding of other meetings and described first tree topology in described subtended conference;
Described overall Broadcasting Control module is used for from the meeting corresponding to described root node, according to the level of described first tree topology, successively broadcasts the content that described initiator is broadcasted;
Described subtended conference realizes that system also comprises cascading topological structure configuration module, the second tree topology sets up module, Multipoint process cell location module and subtended conference hold module, wherein:
Described cascading topological structure configuration module is for configuring the cascading topological structure of subtended conference to be held;
Described second tree topology sets up module for finding out a top layer meeting in the cascading topological structure from subtended conference described to be held, with described top layer meeting for root node, the cascading topological structure of subtended conference described to be held is converted to the second tree topology, described in other node one_to_one corresponding of other meetings and described second tree topology in subtended conference to be held;
Described Multipoint process cell location module is used for according to described second tree topology, configures corresponding topological relation between the Multipoint process unit waiting to hold each meeting;
Described subtended conference holds module for the root node from described second tree topology, holds each meeting in described second tree topology successively according to order from top to bottom, from left to right.
8. subtended conference as claimed in claim 7 realizes system, it is characterized in that, described subtended conference realizes system and also comprises overall situation choosing and see control module, carries out the overall situation select and see for described initiator in described subtended conference.
9. subtended conference as claimed in claim 7 realizes system, it is characterized in that, described overall situation choosing sees that control module comprises path acquisition module and control submodule is seen in overall situation choosing, wherein,
Described path acquisition module sees the path of holding between the meeting of place for obtaining initiator place meeting described in described first tree topology to target choosing;
Described overall situation choosing is seen and is controlled the level in path of submodule for getting according to described path acquisition module, to the selected content seen from end place meeting is seen in described target choosing, successively selects see operation to described initiator place meeting.
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| CN105915355B (en) * | 2016-04-13 | 2019-11-12 | 邦彦技术股份有限公司 | Conference control method and device |
| CN107666396B (en) * | 2016-07-29 | 2021-02-12 | 杭州华为企业通信技术有限公司 | Multi-terminal conference processing method and device |
| CN106549978B (en) * | 2016-12-19 | 2020-02-21 | 东软集团股份有限公司 | Session mode switching method and proxy server |
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