CN100496117C - Resource allocating method in video frequency conference - Google Patents
Resource allocating method in video frequency conference Download PDFInfo
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- CN100496117C CN100496117C CNB2006101443727A CN200610144372A CN100496117C CN 100496117 C CN100496117 C CN 100496117C CN B2006101443727 A CNB2006101443727 A CN B2006101443727A CN 200610144372 A CN200610144372 A CN 200610144372A CN 100496117 C CN100496117 C CN 100496117C
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Abstract
A method for dispatching resource in video conference includes selecting master MCU by calculating MCU resource and selecting MCU at position of main conference hall precedently as master MCU; selecting MCU as master MCU in sequence as local big area MCU, backbone node MCU, the other big area MCU, the other MCU in local big area and some other MCU when resource of master MCU at position of main conference hall is insufficient; selecting slave MCU and cascading it in master MCU when resource of single set of master MCU can not satisfy requirement of conference.
Description
Technical field
The present invention relates to video conferencing technology, particularly a kind ofly in video conference, multipoint control unit is carried out the method that articulates the method for the terminal of attending a meeting and create meeting automatically in the method, video conference of resource allocation, be used for the distributed video conferencing network that constitutes by many multipoint control unit equipment.
Background technology
Video traffic greatly develop now, not only be positioned simply, practical, and must possess certain user's independence, can allow user oneself to create meeting, control meeting.But video conference in use is again a quite complicated process, relate to multiple audio frequency and video agreement, H.323 framework agreement and all multi-protocols such as agreement H.245, when creating meeting, agreement and the rate capacity that will can support according to conference audio agreement, video protocols, conference rate and the terminal of attending a meeting, (Multi-point ControlUnit makes various configuration on MCU) at multipoint control unit; To calculate the surplus resources of MCU simultaneously, comprise video, audio resource, and according to meeting whether split screen, mix speed and choose suitable MCU as main MCU; Particularly when trans-regional a plurality of terminals are wanted holding video conference, the terminal of attending a meeting is more, also need according to terminal location, MCU resource, network bandwidth situation, meeting whether split screen, mix speed etc. a plurality of terminals be articulated on a plurality of corresponding M CU, the MCU cascade port is set simultaneously, a plurality of MCU are carried out cascade, reduce the network bandwidth and take, finish convention.
At this moment just need a perfect system judging Resource Availability, various configurations can be set, can help the user to confirm MCU automatically according to the users conference situation, carry out various settings, and will be provided with the instruction send to MCU, finish Conference Calling or reservation automatically.
MCU is the key equipment of video conferencing system, its major function is that video, voice and data-signal are switched, it is the function device of information Control and exchange between each terminal of attending a meeting, sometimes also comprise " meeting initiation " and functions such as " meeting terminations ", for example it can switch to all meeting-place to the picture signal that is sent to MCU meeting-place spokesman.For voice signal, if simultaneously several speeches are arranged, can carry out mixed processing to them, select the highest audio signal, switch to other meeting-place.
But in the existing video conference user can't be independently easy, preengage easily or hold a meeting, often need the professional and technical personnel to finish, existing video conferencing system can't be carried out effective resource allocation simultaneously, and the MCU resource often needs through artificial selected, inefficiency.
Summary of the invention
The present invention is for solving the problem that prior art exists, the method that articulates the method for the terminal of attending a meeting and create meeting automatically in the method, video conference of resource allocation in a kind of video conference is provided, is used for the distributed video conferencing network that constitutes by many multipoint control unit equipment.Purpose is the resource of meeting is optimized distribution, effectively integrates the MCU resource, makes system have higher efficiency of operation, and can better branch out, and makes independently preset conference simply and easily of user, and guarantees normally holding of meeting.
To achieve these goals, the invention provides the method for resource allocation in a kind of video conference, be used for the distributed video conferencing network that constitutes by many multipoint control unit equipment, comprise the steps:
Step 1 is calculated the multipoint control unit resource, is used to select main multipoint control unit or from multipoint control unit, and carries out resource reservation;
Step 2 is selected main multipoint control unit, and the multipoint control unit of position, main meeting-place preferentially is selected as main multipoint control unit, is used for holding video conference.
Calculate the multipoint control unit resource in the described step 1 and comprise employing timeslice calculating multipoint control unit resource.
Described step 2 also comprises: when the multipoint control unit inadequate resource of region, main meeting-place, then select multipoint control unit as main multipoint control unit in the following order: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district.
Also comprise: preferentially choosing the maximum multipoint control unit of resource between the multipoint control unit at the same level is main multipoint control unit.
This method also comprises:
Step 3 when separate unit master multipoint control unit resource can't satisfy the meeting demand, is selected from multipoint control unit, and is cascaded in the main multipoint control unit.
Step 3 also comprises:
If there are many multipoint control units the region, main meeting-place, then preferentially using the one's respective area multipoint control unit is from multipoint control unit, and re-using the Da Qu multipoint control unit is from multipoint control unit, and is cascaded to below the main multipoint control unit;
If during the multipoint control unit inadequate resource of region, main meeting-place, then overflow is to the Da Qu multipoint control unit, if during Da Qu multipoint control unit inadequate resource, then select backbone node multipoint control unit and other Da Qu multipoint control units earlier, the regional multipoint control unit of selecting other zones in the Ben Da district at last again is from multipoint control unit.
Described step 3 also comprises: between the multipoint control unit at the same level, preferentially choosing the maximum multipoint control unit of resource is from multipoint control unit.
Described cascade comprises: preferentially adopt two-level concatenation mode and main multipoint control unit to finish cascade from multipoint control unit.
Described cascade comprises: cascade adopts multipoint control unit to insert nearby, if there are a plurality of zones respectively to have a plurality of terminals to attend a meeting respectively, after then needing to converge by the one's respective area multipoint control unit respectively, arrive main multipoint control unit by the one's respective area multi-point control unit cascading again.
This method also comprises:
Step 4, the terminal of attending a meeting preferentially is articulated on the multipoint control unit of one's respective area nearby.
This method also comprises, when terminal articulates:
If during the multipoint control unit inadequate resource of region, then overflow is to Ben Da district multipoint control unit, if during Ben Da district multipoint control unit inadequate resource, then preferentially select backbone node multipoint control unit and other Da Qu multipoint control units, just select the regional multipoint control unit in other zones in the Ben Da district at last;
Can satisfy reservation terminal requirements in certain zone as surplus resources on the main multipoint control unit, then terminal can not be articulated on the multipoint control unit of region, and directly is articulated on the main multipoint control unit.
This method also comprises:
Step 5 when part is attended a meeting the conference rate that terminal can't support to require, according to user's request or terminal capability, changes to meeting split screen or mixes fast meeting, application video integrated circuit board resource.
Described step 5 also comprises:
Split screen on main multipoint control unit only, from multipoint control unit split screen not, during main multipoint control unit split screen inadequate resource, then by the order of following selection multipoint control unit, getting the maximum multipoint control unit of video integrated circuit board resource is main multipoint control unit: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district; And unnecessary terminal is connected to main multipoint control unit place Da Qu multipoint control unit, or backbone node multipoint control unit and other Da Qu multipoint control units, select that the regional multipoint control unit in other zones carries out multi-point control unit cascading in the Ben Da district at last again.
Step 5 also comprises: if video integrated circuit board inadequate resource is given meeting management system by the multipoint control unit return information, conference reservation is pointed out user video integrated circuit board inadequate resource, and preengages or hold non-mixed fast meeting with the low person in terminal speed and the meeting application speed;
If video integrated circuit board resource satisfies the demands, but the node of attending a meeting surpasses separate unit multipoint control unit resource capability, then will carry out multi-point control unit cascading.
Described step 5 also comprises: the terminal that will need to mix speed preferentially is arranged on from multipoint control unit.
Described step 5 also comprises: the terminal of mixing phase same rate in the fast meeting preferentially is articulated on the same multipoint control unit.
This method also comprises:
Before the multi-point control unit cascading step, outer network termination is taken out, and seek out corresponding borde gateway equipment, outer network termination is articulated under the corresponding borde gateway equipment.
This method also comprises: all keep the resource of some on the multipoint control unit resource, be used for the adding that the new terminal of attending a meeting is carried out in multi-point control unit cascading or meeting.
The invention provides the method that articulates the terminal of attending a meeting in a kind of video conference, comprise the steps:
Step 1, the terminal of selecting to attend a meeting articulates a certain proportion of terminal according to the resource of main multipoint control unit on main multipoint control unit;
Step 2 is articulated to terminal from the multipoint control unit by big region class with need, and terminal is articulated to accordingly from multipoint control unit.
Also comprise:
Step 3 is sought the borde gateway equipment of outer network termination correspondence, and outer network termination is articulated under the corresponding borde gateway equipment.
In the described step 2, if the terminal number of attending a meeting among the Da Qu is lower than predetermined value, the terminal of then will attending a meeting directly is articulated to main multipoint control unit.
In the described step 2, described need are articulated to and comprise the terminal from multipoint control unit that all need mix the terminal of speed in the terminal of attending a meeting.
When terminal was articulated to multipoint control unit, multipoint control unit kept the predetermined number destination interface.
The present invention also provides a kind of method of automatic establishment video conference, comprises the steps:
The user of step 1, reservation video conference fills in attend a meeting terminal and main meeting-place information is set of meeting title, meeting time, meeting time span, selection in meeting management system;
Step 2, carry out the terminal collision detection, judge whether in session idle in the time period terminal of attending a meeting;
Step 3, select main multipoint control unit, and carry out terminal and articulate, selecting the maximum multipoint control unit of resource by the region, main meeting-place is main multipoint control unit, calculate the resource of main multipoint control unit, the terminal that should be articulated on the main multipoint control unit in the terminal of will attending a meeting simultaneously chooses, earlier on main multipoint control unit, articulate a certain proportion of terminal, reserve the resource that is used for cascade at least.
Also comprise step 4, select, and carry out terminal and articulate from multipoint control unit.
Described step 4 also comprises carrying out cascade from multipoint control unit.
Also comprise step 5, articulate all borde gateway equipment, and with main multi-point control unit cascading.
Described step 3 comprises the steps:
Described step 4 comprises the steps:
Step 111 articulates terminal by resource, overworks up to this multipoint control unit, and delete this multipoint control unit in tabulation;
Step 112 is judged whether the terminal that articulates from multipoint control unit articulates to finish, and finishes then enters step 113 if articulate, otherwise enter step 114;
Step 113 has judged whether that outer network termination attends a meeting, and if any then entering step 115, otherwise enters step 117;
Step 114 judges whether this Da Qu also exists other multipoint control unit, if enter step 110, otherwise returns this reservation failed message, process ends.
Described step 5 comprises the steps:
Step 115 is selected corresponding borde gateway equipment for the outer network termination of attending a meeting, and is judged whether the borde gateway device resource is enough, if resource is inadequately then return this and preengage failed message, and process ends, otherwise enter step 116;
Step 116 articulates all borde gateway equipment, and does cascade with main multipoint control unit;
Step 117 judges whether main multipoint control unit can articulate all residual terminals, if then articulate all terminals, and submits to all multipoint control units, the conference reservation success, otherwise enter step 118;
Step 119 gets successively that each multipoint control unit articulates terminal in the tabulation, exhausts up to multipoint control unit;
Step 120 is judged whether terminal articulates to finish, if, submit to all multipoint control units, the conference reservation success, otherwise return this reservation failed message, process ends.
In the described step 3, when the multipoint control unit inadequate resource of position, main meeting-place, then select multipoint control unit as main multipoint control unit in the following order: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district.
In the described step 3, between the multipoint control unit at the same level, preferentially getting the maximum multipoint control unit of resource is main multipoint control unit.
When described main multipoint control unit split screen and main multipoint control unit split screen inadequate resource, the terminal that then will exceed the split screen resource is articulated to main multipoint control unit place Da Qu multipoint control unit, backbone node multipoint control unit or other Da Qu multipoint control units again.
When exist in the video conference network many multipoint control unit device resources can with and separate unit multipoint control unit device resource can't satisfy the video conference demand time, the demand of comprehensive video meeting of the present invention (node number, split screen, mix speed etc.), each multipoint control unit equipment available resources situation, each multipoint control unit equipment affiliated area, factors such as reservation terminal and multipoint control unit hold facility situation are set resource allocation methods and cascade master multipoint control unit and many are set also automatically from multipoint control unit, for the user provides transparent video conference service fully, comprise the selection of main multipoint control unit equipment in the method, selection from multipoint control unit equipment, the multi-point control unit cascading method, terminal hooking method etc., this method terminal that can guarantee to attend a meeting is articulated to suitable multipoint control unit, make full use of the multipoint control unit resource, satisfy the video conference demand of different user, have very high efficient.
Description of drawings
Fig. 1 is that main MCU selects step and terminal to articulate the detail flowchart of step 1;
Fig. 2 articulates the detail flowchart of step 2 and MCU concatenation step for terminal;
Fig. 3 articulates the detail flowchart that step and terminal articulate step 3 for outer network termination;
Fig. 4 is the distributed video conferencing system schematic;
Fig. 5 is a MCU apparatus logic distribution map in the distributed video conferencing system.
Embodiment
The method of resource allocation in a kind of video conference provided by the invention, comprise mainly that the MCU resource is calculated, main MCU selects, from MCU select, several aspects such as MCU cascade and terminal articulate.
One, the MCU resource is calculated
For the more careful MCU resource of calculating accurately, the present invention has designed the timeslice notion, to be divided into a plurality of timeslices the time, by timeslice the MCU resource is calculated simultaneously, timeslice is important notion among the present invention, because the uncertainty of each meeting zero-time, the surplus resources that calculate MCU in a specific time range is the thing of a more complicated.
Mainly used the resource contention analytical method in the operational research among the present invention, the timeslice of the MCU resource that will divide according to meeting takies, and is converted into the timeslice of dividing according to MCU through algorithm and takies.Be exemplified below:
1. existing meeting a 9:00-11:00
Use 2 resources of MCU1 the inside, use 3 resources of MCU2 the inside
Meeting b 10:00-13:00
Use 6 resources of MCU1 the inside, use 7 resources of MCU2 the inside
2. occupied 2 resources of MCU1 9:00-10:00 as calculated,
The occupied 2+6=8 of a 10:00-11:00 resource
Occupied 3 resources of MCU2 9:00-10:00
The occupied 3+7=10 of a 10:00-11:00 resource
Occupied 7 resources of 11:00-13:00
Divide a plurality of timeslices, and calculate the resource of MCU by timeslice.When preset conference, system can judge the MCU resource according to each timeslice, check meeting hold during in MCU resource in a plurality of timeslices, draw available number of resources in the session, and articulate terminal by this number of resources and terminal is articulated to suitable MCU gets on.
When creating meeting, system can inquire about the timeslice of dividing according to MCU automatically and take, and carries out reasonable resources and distributes.
Two, main MCU selects and resource allocation
Main meeting-place (selecting a certain terminal during user's preset conference is the main meeting-place) region MCU preferentially is selected as main MCU; If during the MCU inadequate resource of region, main meeting-place, then overflow is to Ben Da district MCU, if during Ben Da district MCU inadequate resource, then preferentially selects the MCU of backbone node and the MCU of other Da Qu, selects just that the regional MCU in other zones is main MCU in the Ben Da district at last;
Preferentially choosing the maximum MCU of resource between the MCU at the same level is main MCU;
The resource of MCU will keep certain redundant, be used for newly-increased terminal of session or cascade MCU and use.
The resource of MCU also comprises the Video integrated circuit board resource that is used for mixing fast meeting, the bandwidth resources of MCU region etc. except that the H.323 integrated circuit board resource that is used for the ordinary video meeting.
Distributed video conferencing network described in the invention comprises many MCU equipment, the dereliction of equipment own from branch, every equipment can independently provide video conference service, each other by the IP network interactive information, resource-sharing can be cooperated mutually video conference service is provided simultaneously.MCU equipment according to various places video conference demand from being divided into Da Qu MCU, backbone node MCU and regional MCU in logic, as shown in Figure 5.MCU 501 is Da Qu MCU, and MCU 502 is backbone node MCU, and MCU 503 is regional MCU.
Three, select from MCU
According to the meeting application situation, in the time of can't satisfying the meeting demand as separate unit MCU resource, need realize by the MCU cascade, select from MCU.Basic identical from system of selection and the main MCU system of selection of MCU:
After main MCU is selected, and when needing cascade from MCU, if a plurality of MCU are arranged in the region, main meeting-place, then preferentially use MCU in the zone, re-use Da Qu MCU for from MCU, and be cascaded to below the main MCU.If during the MCU inadequate resource of region, main meeting-place, then overflow is to Da Qu MCU, if during Da Qu MCU inadequate resource, then selects MCU and other Da Qu MCU of backbone node earlier, and the regional MCU that selects other zones in the Ben Da district at last again is from MCU.
Between the MCU at the same level, preferentially choosing the maximum MCU of bandwidth and port resource is from MCU.
Four, MCU cascade
If main MCU inadequate resource then according to selecting MCU to carry out cascade from the MCU system of selection.
If the terminal in the meeting is linked into different MCU, then need cascade between the MCU.Preferential two-level concatenation mode and the main MCU of adopting finishes cascade from the selected back of MCU;
Cascade adopts MCU to insert nearby, if there are a plurality of zones respectively to have a plurality of terminals to attend a meeting respectively, after then needing to be converged by one's respective area MCU respectively, is cascaded to main MCU by one's respective area MCU again.If one's respective area MCU resource is not enough, then can select Ben Da district MCU, next selects the MCU of backbone node and other Da Qu MCU, selects at last that the regional MCU in other zones does from MCU in the Ben Da district, and carries out the cascade of MCU.
Five, terminal articulates
Because the particularity of video conference, it relates to multiple spot, and might cross over a plurality of areas, and the bandwidth of each department etc. have nothing in common with each other.Its terminal also is that diversified, different terminal is supported different speed simultaneously, so must design reasonable and practical hooking method when articulating terminal, comprises method, overflow method, Cascading Methods, centralized way and redundancy approach or the like nearby.
Terminal preferentially is articulated on the MCU of local area; If during the MCU inadequate resource of region, then overflow is to Ben Da district MCU, if during Ben Da district MCU inadequate resource, then preferentially selects backbone node MCU and other Da Qu MCU, the last regional MCU that just selects other zones in the Ben Da district;
Go up surplus resources as main MCU and can satisfy reservation terminal requirements in certain zone, then terminal can not be articulated on the MCU of region, and directly is articulated on the main MCU, reduces the MCU cascade;
Six, Video integrated circuit board resource
1, split screen meeting
When meeting has mixed speed or split screen demand, need to use Video integrated circuit board resource to realize, the non-split screen meeting of common single speed is as long as H.323 the integrated circuit board resource can realize.
When user applies was held the split screen meeting, during as main MCU split screen inadequate resource, then by the order of above selection MCU, getting the maximum MCU of Video integrated circuit board resource was main MCU.Unnecessary terminal is connected to main MCU place Da Qu MCU, or backbone node MCU and other Da Qu MCU, selects that the regional MCU in other zones carries out the MCU cascade in the Ben Da district at last again.Only split screen on main MCU is not realized the split screen function from MCU.
2, mix speed and mix protocol conference
The flank speed that can support as terminal can't satisfy the conference rate requirement, can automatically meeting be changed to mix fast meeting application Video integrated circuit board resource;
Can't support the audio or video agreement of requested session as terminal, can automatically meeting be changed to and mix speed and mix protocol conference, application Video integrated circuit board resource;
Judge at first whether this meeting needs to mix the mixed agreement of speed, judge then whether Video integrated circuit board resource is enough if need to mix the mixed agreement of speed.The terminal of mixing phase same rate in the fast meeting preferentially is articulated on the same MCU.
If Video integrated circuit board inadequate resource is given meeting management system by the MCU return information, conference reservation prompting user Video integrated circuit board inadequate resource is selected terminal supporting rate and conference rate junior, is consistent.
If Video integrated circuit board resource satisfies the demands, but the point of attending a meeting surpasses separate unit MCU resource capability, then will carry out the MCU cascade, and the terminal that as far as possible will need to mix speed is arranged on from MCU.
As preengage terminal and clash, then judge by reservation side whether in session idle in the time period terminal of attending a meeting, decide again seclected time still selected again terminal in its sole discretion and hold a meeting.
Meeting management system described in the present invention, for the user of reservation video conference provides man-machine interface, through Certificate Authority, by with the information interaction of MCU equipment, that realizes video conference accepts establishment, control and management function, for the user provides video conference business.
The method of automatic establishment video conference of the present invention is allocated MCU as stated above automatically, the terminal of attending a meeting is articulated to different MCU gets on.
When creating meeting, the user need fill in attend a meeting terminal and the main meeting-place is set of meeting title, meeting time, meeting time span, selection.Carry out the terminal collision detection earlier, judge whether in session idle in the time period terminal of attending a meeting.Selecting the maximum MCU of resource by the region, main meeting-place then is main MCU, calculates the resource of main MCU, and the terminal that should be articulated on the main MCU in the terminal of will attending a meeting simultaneously chooses, and articulates earlier a certain proportion of terminal on main MCU.Get all the other again and be not articulated in non-outer network termination on the main MCU by big region class, select corresponding Da Qu MCU successively, and calculate the resource of MCU, what are articulated to local zone MCU respectively and get on by the resource of MCU with terminal, preferentially articulate the maximum MCU of resource.Whenever articulate a MCU just for it generates a cascade port, cascade is carried out in it and main MCU.Whether in attend a meeting terminal have outer network termination, if having, then it is taken out, and find out corresponding borde gateway (BE) equipment if checking, terminal is articulated to corresponding borde gateway equipment gets on again.All from MCU articulate finish after, the terminal on the remaining main MCU also is articulated to main MCU gets on, if main MCU can not articulate all residual terminals, then get other the regional MCU in the main MCU place Da Qu, what articulate residual terminal successively by resource.
Outer net described in the present invention refer to can't with other networks of the direct intercommunication of video conference network described in the present invention, comprise public the Internet and enterprise's private network.
The equipment of borde gateway described in the present invention mainly is to be used for finishing protocol conversion or Media Stream IWF, when outer network termination and video conference network employing different agreement described in the invention, when perhaps being in inaccessible two networks, need between two nets, set up borde gateway equipment, finish protocol conversion or Media Stream IWF.
The present invention can be by meeting split screen and mix speed and select terminal to articulate order whether, accomplishes as far as possible that same rate is concentrated to articulate, and reduces the use of Video integrated circuit board, thereby reduces MCU cascade number.
In addition, the present invention can carry out collision detection to the terminal of attending a meeting when reservation, if clash, system can point out the user and select to carry out next step operation by the user.Simultaneity factor is carried out collision detection to the MCU resource, if conflict is arranged, preferentially guarantees preset conference.
And, can be divided into instant conference and preset conference when creating meeting, after having preengage, instant conference can hold immediately, and preset conference then can be held automatically in the predetermined the time of meeting.Hold back MCU and can call out all terminals of attending a meeting automatically.In outer network termination wants to add net of the present invention, during meeting, can outer network termination be articulated on the borde gateway equipment, thereby participate in meeting in the net by the borde gateway equipment of MCU.
The method of carrying out resource allocation in the video conference of the present invention is described below, this method comprises the steps: again
Main MCU selects step, selecting the maximum MCU of resource by the region, main meeting-place is main MCU, and calculate the resource of main MCU, if during the MCU inadequate resource of region, main meeting-place, then overflow is to Ben Da district MCU, if during Ben Da district MCU inadequate resource, then at first select backbone node MCU and other Da Qu MCU, at last selecting other the regional MCU in the Ben Da district again is main MCU, and between the MCU at the same level, preferentially selecting the maximum MCU of resource is main MCU;
Terminal articulates step 1, and the terminal that should be articulated on the main MCU in the terminal of attending a meeting is chosen, and articulates a certain proportion of terminal by the resource of main MCU on main MCU, reserves the port resource that is used for cascade at least;
Terminal articulates step 2, will remain non-outer network termination by big region class, selects the MCU of corresponding Da Qu successively, and calculates the resource of MCU, and what are articulated to local MCU respectively and get on by the resource of MCU with terminal, preferentially articulate the maximum MCU of resource;
The MCU concatenation step, the MCU that articulates generates a cascade port, carries out cascade with main MCU;
Terminal articulates step 3, the remaining terminal that should be articulated on the main MCU also is articulated to main MCU gets on, if main MCU can not articulate all residual terminals, then gets other the regional MCU in the main MCU place Da Qu, and what articulate residual terminal successively by resource.
Outside existing in the terminal of attending a meeting during network termination, the method of carrying out resource allocation in the video conference of the present invention comprises that also an outer network termination articulates step, be positioned at before the MCU concatenation step, outer network termination is taken out, and seek out corresponding borde gateway equipment, and outer network termination is articulated under the corresponding borde gateway equipment.
Carry out the method for resource allocation in the video conference of the present invention, follow nearby when the terminal of attending a meeting inserts MCU and insert, if a certain number of (description for convenient arranged in the terminal of attending a meeting, this the hypothesis number is X) more than terminal belong to same zone, then these terminals at first will insert MCU in the one's respective area nearby, are promptly converged by one's respective area MCU; And if certain zone has only X following terminal to attend a meeting, then terminal can not passed through one's respective area MCU, and is directly connected under the main MCU.
After main MCU is selected, and when needing cascade from MCU, if there are a plurality of MCU the region, main meeting-place, then preferentially use this zone MCU for from MCU, re-use Da Qu MCU for from MCU, and be cascaded to below the main MCU.If during the MCU inadequate resource of region, main meeting-place, then overflow is to Da Qu MCU, if during Da Qu MCU inadequate resource, then select MCU and other Da Qu MCU of backbone node earlier, the regional MCU that selects at last other zones in the Ben Da district again is from MCU, and preferentially choosing the maximum MCU of resource between the MCU at the same level is from MCU.
When the terminal more than all there is X in a plurality of zones is attended a meeting, after then converging by one's respective area MCU respectively, be cascaded to main MCU by one's respective area MCU again; If one's respective area MCU resource is not enough, then can select Ben Da district MCU, MCU and other Da Qu MCU that next selects backbone node select the regional MCU that resource is maximum in other zones in the Ben Da district to do from MCU at last, and carry out the cascade of MCU.
Among the present invention, split screen on main MCU only, from MCU split screen not, when main MCU split screen inadequate resource, then by the order of above selection MCU, getting the maximum MCU of Video integrated circuit board resource is main MCU, unnecessary terminal is connected to the Da Qu MCU of main MCU place Da Qu, or the MCU of the MCU of backbone node and other Da Qu, select the regional MCU in other zones in the Ben Da district to carry out the MCU cascade more at last.
Simultaneously, need also to judge whether this meeting needs to mix speed and mix agreement, judge then whether Video integrated circuit board resource is enough if need to mix the mixed agreement of speed, if Video integrated circuit board inadequate resource is given meeting management system by the MCU return information, conference reservation prompting user Video integrated circuit board inadequate resource, and select terminal speed and conference rate junior reservation or hold non-mixed fast meeting, if Video integrated circuit board resource satisfies the demands, but the point of attending a meeting then needs to carry out the MCU cascade when surpassing the resource capability of single MCU.
Simultaneously, can add new terminal when guaranteeing that meeting is held among the present invention, on the MCU resource, all keep the port of some.
Simultaneously, be to calculate to the judgement of MCU resource by timeslice, during preset conference, system can judge the MCU resource according to each timeslice, and by above method terminal is articulated to suitable MCU and gets on.
Simultaneously, terminal articulate order can by whether split screen and terminal speed adjusts terminal automatically and articulates in proper order, make in the identical termination set of speed to articulate the use of minimizing Video integrated circuit board, thereby minimizing MCU cascade number.
For different conference type, after having preengage, instant conference can hold immediately, and preset conference then can be held automatically in the predetermined the time of meeting.Hold back MCU and can call out all terminals of attending a meeting automatically; When creating meeting, the user need fill in attend a meeting terminal and the main meeting-place is set of meeting title, meeting time, meeting time span, selection.
The method that the present invention creates video conference automatically specifically comprises the steps: as shown in Figures 1 to 4
Step 102 is carried out the terminal conflict query, judges whether to exist the terminal conflict query, enters step 103;
Step 103 is obtained the meeting-place area information according to conferencing information, and obtains the maximum MCU of resource in this zone;
Step 105 is articulated to the main meeting-place on the main MCU, and judges whether the MCU resource is enough, if enter step 107, otherwise enters step 106;
Step 107 is articulated to main MCU in ratio is set with the terminal that a part should be articulated to main MCU;
Step 108 is got the terminal list that articulates from MCU, by big region class, handles respectively;
Step 110 is got first MCU, and with this MCU and main MCU cascade;
Step 111 articulates terminal by resource, overworks up to this MCU, and delete this MCU in tabulation;
Step 112 is judged whether the terminal that articulates from multipoint control unit articulates to finish, and finishes then enters step 113 if articulate, otherwise enter step 114;
Step 113 has judged whether that outer network termination attends a meeting, and if any then entering step 115, otherwise enters step 117;
Step 114 judges whether this Da Qu also exists other MCU, if enter step 110, otherwise returns this reservation failed message, process ends;
Step 115 is selected corresponding borde gateway equipment for the outer network termination of attending a meeting, and is judged whether the borde gateway device resource is enough, if resource is inadequately then return this and preengage failed message, and process ends, otherwise enter step 116;
Step 116 articulates all borde gateway terminals, and does cascade with main MCU;
Step 117 judges whether main MCU can articulate all residual terminals, if then articulate all terminals, and submits to all MCU, the conference reservation success, otherwise enter step 118;
Step 119 gets successively that each MCU articulates terminal in the tabulation, exhausts up to MCU;
Step 120 is judged whether terminal articulates to finish, if then submit to all MCU, and the conference reservation success, otherwise return this reservation failed message, process ends.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (12)
1. the method for resource allocation in the video conference is used for the distributed video conferencing network that is made of many multipoint control unit equipment, it is characterized in that, comprises the steps:
Step 1 is calculated the multipoint control unit resource, is used to select main multipoint control unit or from multipoint control unit, and carries out resource reservation, is convenient to newly-increased terminal of session or cascade multipoint control unit;
Step 2 is selected main multipoint control unit, and the multipoint control unit of position, main meeting-place preferentially is selected as main multipoint control unit, is used for holding video conference;
Step 3 when separate unit master multipoint control unit resource can't satisfy the meeting demand, is selected from multipoint control unit, and is cascaded in the main multipoint control unit;
Step 4, the terminal of attending a meeting preferentially are articulated on the multipoint control unit of one's respective area nearby;
Step 5 when part is attended a meeting the conference rate that terminal can't support to require, according to user's request or terminal capability, changes to meeting split screen or mixes fast meeting, application video integrated circuit board resource;
Before the multi-point control unit cascading step, outer network termination is taken out, and seek out corresponding borde gateway equipment, outer network termination is articulated under the corresponding borde gateway equipment; Wherein, borde gateway equipment is used for finishing protocol conversion or Media Stream intercommunication;
Calculate the multipoint control unit resource in the described step 1 and comprise employing timeslice calculating multipoint control unit resource;
Described step 2 also comprises: when the multipoint control unit inadequate resource of region, main meeting-place, then select multipoint control unit as main multipoint control unit in the following order: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district; Preferentially choosing the maximum multipoint control unit of resource between the multipoint control unit at the same level is main multipoint control unit;
Step 3 also comprises:
If there are many multipoint control units the region, main meeting-place, then preferentially using the one's respective area multipoint control unit is from multipoint control unit, and re-using the Da Qu multipoint control unit is from multipoint control unit, and is cascaded to below the main multipoint control unit;
If during the multipoint control unit inadequate resource of region, main meeting-place, then overflow is to the Da Qu multipoint control unit, if during Da Qu multipoint control unit inadequate resource, then select backbone node multipoint control unit and other Da Qu multipoint control units earlier, the regional multipoint control unit of selecting other zones in the Ben Da district at last again is from multipoint control unit;
Between the multipoint control unit at the same level, preferentially choosing the maximum multipoint control unit of resource is from multipoint control unit.
2. the method for resource allocation in the video conference according to claim 1 is characterized in that in the step 3, described cascade comprises: preferentially adopt two-level concatenation mode and main multipoint control unit to finish cascade from multipoint control unit.
3. the method for resource allocation in the video conference according to claim 1, it is characterized in that, described cascade comprises: cascade adopts multipoint control unit to insert nearby, if there are a plurality of zones respectively to have a plurality of terminals to attend a meeting respectively, after then needing to converge by the one's respective area multipoint control unit respectively, arrive main multipoint control unit by the one's respective area multi-point control unit cascading again.
4. the method for resource allocation in the video conference according to claim 1 is characterized in that this method also comprises, when terminal articulates:
If during the multipoint control unit inadequate resource of region, then overflow is to Ben Da district multipoint control unit, if during Ben Da district multipoint control unit inadequate resource, then preferentially select backbone node multipoint control unit and other Da Qu multipoint control units, just select the regional multipoint control unit in other zones in the Ben Da district at last;
Can satisfy reservation terminal requirements in certain zone as surplus resources on the main multipoint control unit, then terminal is not articulated on the multipoint control unit of region, and directly is articulated on the main multipoint control unit.
5. the method for resource allocation in the video conference according to claim 1 is characterized in that described step 5 also comprises:
Split screen on main multipoint control unit only, from multipoint control unit split screen not, during main multipoint control unit split screen inadequate resource, then by the order of following selection multipoint control unit, getting the maximum multipoint control unit of video integrated circuit board resource is main multipoint control unit: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district;
And unnecessary terminal is connected to main multipoint control unit place Da Qu multipoint control unit, or backbone node multipoint control unit and other Da Qu multipoint control units;
Last select again that the regional multipoint control unit in other zones carries out multi-point control unit cascading in the Ben Da district.
6. the method for resource allocation in the video conference according to claim 1, it is characterized in that, step 5 also comprises: if video integrated circuit board inadequate resource, give meeting management system by the multipoint control unit return information, meeting management system is pointed out user video integrated circuit board inadequate resource, and preengages or hold non-mixed fast meeting with the low person in terminal speed and the meeting application speed;
If video integrated circuit board resource satisfies the demands, but the node of attending a meeting surpasses separate unit multipoint control unit resource capability, then will carry out multi-point control unit cascading.
7. the method for resource allocation in the video conference according to claim 1, it is characterized in that described step 5 also comprises: the terminal that will need to mix speed preferentially is arranged on from multipoint control unit.
8. the method for resource allocation in the video conference according to claim 1, it is characterized in that described step 5 also comprises: the terminal of mixing phase same rate in the fast meeting preferentially is articulated on the same multipoint control unit.
9. the method for resource allocation in the video conference according to claim 1, it is characterized in that, this method also comprises: all keep the resource of some on the multipoint control unit resource, be used for the adding that the new terminal of attending a meeting is carried out in multi-point control unit cascading or meeting.
10. a method of creating video conference automatically is characterized in that, comprises the steps:
The user of step 1, reservation video conference fills in attend a meeting terminal and main meeting-place information is set of meeting title, meeting time, meeting time span, selection in meeting management system;
Step 2, carry out the terminal collision detection, judge whether in session idle in the time period terminal of attending a meeting;
Step 3, select main multipoint control unit, and carry out terminal and articulate, selecting the maximum multipoint control unit of resource by the region, main meeting-place is main multipoint control unit, calculate the resource of main multipoint control unit, the terminal that should be articulated on the main multipoint control unit in the terminal of will attending a meeting simultaneously chooses, earlier on main multipoint control unit, articulate a certain proportion of terminal, reserve the resource that is used for cascade at least, be convenient to session cascade multipoint control unit;
Step 4 is selected from multipoint control unit, and carries out terminal and articulate;
Step 5 articulates all borde gateway equipment, and with main multi-point control unit cascading; Wherein, borde gateway equipment is used for finishing protocol conversion or Media Stream intercommunication;
In the described step 3, when the multipoint control unit inadequate resource of position, main meeting-place, then select multipoint control unit as main multipoint control unit in the following order: other regional multipoint control unit in Ben Da district multipoint control unit, backbone node multipoint control unit and other Da Qu multipoint control units, the Ben Da district; Between the multipoint control unit at the same level, preferentially getting the maximum multipoint control unit of resource is main multipoint control unit;
Described step 4 also comprises carrying out cascade from multipoint control unit;
When described main multipoint control unit split screen and main multipoint control unit split screen inadequate resource, the terminal that then will exceed the split screen resource is articulated to main multipoint control unit place Da Qu multipoint control unit, backbone node multipoint control unit or other Da Qu multipoint control units again.
11. the method for automatic establishment video conference as claimed in claim 10 is characterized in that, described step 3 comprises the steps:
Step 103 is obtained the meeting-place area information according to conferencing information, and obtains the maximum multipoint control unit of resource in this zone;
Step 104, the terminal that will articulate by speed sorts, and terminal list that articulates on the main multipoint control unit and the terminal list that articulates from multipoint control unit are set respectively;
Step 105 is articulated to the terminal of attending a meeting of main meeting-place on the main multipoint control unit, and judges whether the multipoint control unit resource is enough, if enter step 107, otherwise enters step 106;
Step 106, overflow Da Qu, and return step 105 after selecting resource is maximum among the Da Qu multipoint control unit as main multipoint control unit;
Step 107 is articulated to main multipoint control unit in ratio is set with the terminal that a part should be articulated to main multipoint control unit.
12. the method for automatic establishment video conference as claimed in claim 10 is characterized in that, described step 4 comprises the steps:
Step 108 is got the terminal list that articulates from multipoint control unit, by big region class, handles respectively;
Step 109, all multipoint control units are by the resource ordering in the Jiang Da district;
Step 110 is got first multipoint control unit, and with this multipoint control unit and main multi-point control unit cascading;
Step 111 articulates terminal by resource, overworks up to this multipoint control unit, and delete this multipoint control unit in tabulation;
Step 112 is judged whether the terminal that articulates from multipoint control unit articulates to finish, and finishes then enters step 113 if articulate, otherwise enter step 114;
Step 113 has judged whether that outer network termination attends a meeting, and if any then entering step 115, otherwise enters step 117;
Step 114 judges whether this Da Qu also exists other multipoint control unit, if enter step 110, otherwise returns this reservation failed message, process ends;
Described step 5 comprises the steps:
Step 115 is selected corresponding borde gateway equipment for the outer network termination of attending a meeting, and is judged whether the borde gateway device resource is enough, if resource is inadequately then return this and preengage failed message, and process ends, otherwise enter step 116;
Step 116 articulates all borde gateway equipment, and does cascade with main multipoint control unit;
Step 117 judges whether main multipoint control unit can articulate all residual terminals, if then articulate all terminals, and submits to all multipoint control units, the conference reservation success, otherwise enter step 118;
Step 118, other regional multipoint control unit of getting main multipoint control unit place Da Qu sorts by resource;
Step 119 gets successively that each multipoint control unit articulates terminal in the tabulation, exhausts up to multipoint control unit;
Step 120 is judged whether terminal articulates to finish, if, submit to all multipoint control units, the conference reservation success, otherwise return this reservation failed message, process ends.
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| CNB2006101443727A CN100496117C (en) | 2006-12-04 | 2006-12-04 | Resource allocating method in video frequency conference |
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| CN101515948B (en) * | 2009-03-31 | 2012-04-25 | 华为终端有限公司 | Management method, management device and management system in distributed multi-point conference system |
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| CN102055950B (en) * | 2009-11-02 | 2012-07-04 | 杭州华三通信技术有限公司 | MCU backup method and equipment in video conference |
| US8290128B2 (en) * | 2010-06-10 | 2012-10-16 | Microsoft Corporation | Unified communication based multi-screen video system |
| CN102025971A (en) * | 2010-12-15 | 2011-04-20 | 广东威创视讯科技股份有限公司 | Dynamic distribution method of video session media server resources |
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| CN109547730A (en) * | 2015-09-30 | 2019-03-29 | 杭州华为企业通信技术有限公司 | A kind of dispatching method and device of multipoint control unit resource |
| CN105357469A (en) * | 2015-11-06 | 2016-02-24 | 国家电网公司 | MCU (multi control unit) resource pool deploying method and apparatus |
| CN105357468A (en) * | 2015-11-06 | 2016-02-24 | 国家电网公司 | Resource adaptation method and apparatus |
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| CN106851177A (en) * | 2017-03-23 | 2017-06-13 | 中国南方电网有限责任公司 | A kind of method and system for automatically creating video conference |
| CN110324286B (en) * | 2018-03-30 | 2022-02-22 | 视联动力信息技术股份有限公司 | Conference control system and method |
| CN110855926A (en) * | 2018-08-21 | 2020-02-28 | 视联动力信息技术股份有限公司 | Video conference processing method and device |
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