CN101835025A - Spare MCU selecting method and equipment - Google Patents
Spare MCU selecting method and equipment Download PDFInfo
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- CN101835025A CN101835025A CN 201010151935 CN201010151935A CN101835025A CN 101835025 A CN101835025 A CN 101835025A CN 201010151935 CN201010151935 CN 201010151935 CN 201010151935 A CN201010151935 A CN 201010151935A CN 101835025 A CN101835025 A CN 101835025A
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Abstract
The invention discloses spare MCU selecting method and equipment. The method comprises the following steps that: a video managing server receives a video conference request, and holds a video conference by a subordinate MCU; and when the MCU for holding the video conference fails, the video managing server selects the MCU with highest spare priority in the MUC failing area, and uses the MCU as the spare MCU. The video managing server receives the video conference request to hold the video conference through the subordinate MCU. When the MCU for holding the video conference fails, the video managing server selects the MCU with highest spare priority in the MCU failing area and uses the MCU as the spare MCU, thereby enhancing the selection efficiency of the spare MCU.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of system of selection and equipment of spare MCU.
Background technology
Video conference is meant two or more different local individual or colonies, by transmission line and multimedia equipment, sound, image and documentation is transmitted mutually, reaches instant and interactive communication, to finish the meeting purpose.The equipment that mainly comprises two parts at present in the video conferencing system: MCU (Multipoint Control Unit, multipoint control unit) and video terminal.Wherein, MCU is the key equipment of multi-spot video conference system, will be from the information flow of each meeting field point, through after the separated in synchronization, extract information and signalings such as audio frequency, video, data, finish processes such as corresponding audio mix or switching, video mix or switching, data broadcasting and Route Selection, timing and meeting control, at last that each meeting field point is required various information reconfigure, and are sent to each corresponding video terminal.The MCU of video conferencing system and each video terminal generally all are distributed in the machine room or the meeting room of diverse geographic location, carry out real time communication by network each other, guarantee normally holding of video conference.When certain end points in the system (MCU or video terminal) causes this end points cisco unity malfunction because of reasons such as geological disaster or network interruption or equipment, if this end points is a video terminal, influence surface is smaller, is at most that video conference can not be participated in the end points location; If but this end points is MCU, influence surface is just bigger, and all videos meeting that can cause this MCU to manage can not be held.
In this case, system need reselect MCU and holds a meeting.Available MCU is normally inquired after in the selection of MCU in the prior art in network, and the available MCU that use is inquired after is holding video conference again.But MCU that this network inquiring method is inquired after and meeting founder may be in same territories, comprise territory A-E in the multistage multiple domain subtended conference system as shown in Figure 1, have MCU in each territory respectively.But the network bandwidth between the same area is not less usually, meeting normally holding owing to the video conference of flow occlusive effects when video flow is big; Simultaneously, for the MCU of restriction rights of using, if the video conference founder does not have corresponding authority, the MCU that then can't use this selection is holding video conference again.
Summary of the invention
The invention provides a kind of system of selection and equipment of spare MCU, to realize high efficiency selected spare CPU in the multistage multiple domain video conferencing system.
The invention provides a kind of system of selection of spare MCU, be applied to multistage multiple domain video conferencing system, this system comprises conference terminal, multipoint control unit MCU and video signal management server, and this method comprises:
Described video signal management server receiver, video request for conference is by subordinate MCU holding video conference;
When being used for the MCU fault of holding video conference, select the highest MCU of backup priority in the territory of described video signal management server under this fault MCU as spare MCU.
Select the highest MCU of backup priority to comprise in the territory of described video signal management server under this fault MCU as spare MCU:
Described video signal management server obtains the MCU that described conference creation person can manage in the territory of authority under fault MCU according to the conference creation person of described video conference;
Described video signal management server selects the highest MCU of backup priority as spare MCU in the MCU that gets access to.
Select the highest MCU of backup priority to comprise in the territory of described video signal management server under this fault MCU as spare MCU:
The MCU that described video signal management server can be managed according to the described conference creation person of described conference creation person's authority acquiring;
Described video signal management server obtains the resource user mode of the MCU that described conference creation person can manage, obtains having the MCU of the required surplus resources of the video conference of setting up;
Described video signal management server further selects the highest MCU of backup priority as spare MCU from the MCU that obtains.
The resource user mode that described video signal management server obtains the MCU that described conference creation person can manage comprises:
Described video signal management server is known the resource user mode of the MCU that described conference creation person can manage according to the resource operating position of each MCU of record; Perhaps
The MCU that described video signal management server can be managed to described conference creation person sends resource and inquires after request, knows the resource user mode of the MCU that described conference creation person can manage according to the response of MCU.
Select in the territory of described video signal management server under this fault MCU the highest MCU of backup priority as spare MCU after, also comprise:
The resource user mode of the MCU that the described backup priority of described video signal management server queries is the highest;
If the highest MCU of described backup priority has the surplus resources that the video conference of setting up needs, described video signal management server MCU that described backup priority is the highest is as described spare MCU;
Otherwise, select MCU except that the highest MCU of described backup priority successively according to the backup priority order of MCU in the territory of described video signal management server under this fault MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU.
Select in the territory of described video signal management server under this fault MCU the highest MCU of backup priority as spare MCU after, also comprise:
If select the spare MCU failure in the territory of described video signal management server under described fault MCU, select the highest MCU of backup priority in the higher level territory in the territory of described video signal management server under described fault MCU as spare MCU.
Also comprise:
Described video signal management server configuration conference creation person manages the authority of MCU and the backup MCU priority of each MCU.
The invention provides a kind of video signal management server, be applied to multistage multiple domain video conferencing system, this system also comprises conference terminal and MCU, and described video signal management server comprises:
The unit is set up in meeting, is used for according to the video conference request that receives by subordinate MCU holding video conference;
The spare MCU selected cell is set up the unit with described meeting and is connected, and is used for when being used for the MCU fault of holding video conference, selects the highest MCU of backup priority as spare MCU in the territory under this fault MCU.
Described spare MCU selected cell also is used for:
Obtain the MCU that described conference creation person can manage in the territory of authority under fault MCU according to the conference creation person of described video conference;
In the MCU that gets access to, select the highest MCU of backup priority as spare MCU.
Described spare MCU selected cell also is used for:
Authority MCU obtains subelement, is used for the MCU that can manage according to the described conference creation person of described conference creation person's authority acquiring;
State obtains subelement, obtains subelement with described authority MCU and is connected, and is used to obtain the resource user mode of the MCU that described conference creation person can manage, obtains having the MCU of the required surplus resources of the video conference of setting up;
Preferentially obtain subelement, obtain subelement with described state and be connected, obtain from described state and select the highest MCU of backup priority the MCU that subelement obtains as spare MCU.
Described state obtains subelement and also is used for:
Know the resource user mode of the MCU that described conference creation person can manage according to the resource operating position of each MCU that writes down; Perhaps
Inquire after request to the MCU transmission resource that described conference creation person can manage, know the resource user mode of the MCU that described conference creation person can manage according to the response of MCU.
Described spare MCU selected cell also is used for:
Inquire about the resource user mode of the highest MCU of described backup priority;
If the highest MCU of described backup priority has the surplus resources that the video conference of setting up needs, the MCU that described backup priority is the highest is as described spare MCU;
Otherwise, selecting MCU except that the highest MCU of described backup priority successively according to the backup priority order of MCU in the territory under this fault MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU.
Described spare MCU selected cell also is used for:
If select the spare MCU failure in the territory of described video signal management server under described fault MCU, select the highest MCU of backup priority in the higher level territory in the territory under described fault MCU as spare MCU.
Also comprise:
Dispensing unit is used to dispose authority that conference creation person manages MCU and the backup MCU priority of each MCU.
Compared with prior art, the present invention has the following advantages at least:
Video signal management server receiver, video request for conference is by subordinate MCU holding video conference, when being used for the MCU fault of holding video conference, select the highest MCU of backup priority as spare MCU in the territory of video signal management server under this fault MCU, improve the efficient that spare MCU is selected.
Description of drawings
Fig. 1 is the MCU networking schematic diagram of multistage multiple domain subtended conference system in the prior art;
Fig. 2 is the schematic flow sheet of the system of selection of spare MCU provided by the invention;
Fig. 3 is the membership credentials figure of application scenarios Video Server subordinate's of the present invention MCU;
Fig. 4 is the schematic flow sheet of the system of selection of the spare MCU that provides of application scenarios of the present invention;
Fig. 5 is the structural representation of video signal management server provided by the invention.
Embodiment
Core concept of the present invention is: conference terminal and each MCU are registered to Video Server (video signal management server), and conference creation person uses the MCU holding video conference by Video Server; Wherein, MCU is divided into not on the same group, and the MCU of each group belongs to same territory, and the MCU in the same territory has different backup priority; Different user has different administration authorities, can use different MCU according to the size of administration authority; When the master used the MCU fault, Video Server preferentially selected the highest MCU of backup priority to replace the master to continue video conference with MCU under conference creation person according to the establishment user's of video conference administration authority in the territory.
The invention provides a kind of system of selection of spare MCU, be applied to multistage multiple domain video conferencing system, this system comprises conference terminal, multipoint control unit MCU and video signal management server, as shown in Figure 2, may further comprise the steps:
Introduce the system of selection of spare MCU provided by the invention in detail below in conjunction with concrete application scenarios.This method is applied to multistage multiple domain video conferencing system, comprises MG (conference terminal), a plurality of MCU and Video Server (video signal management server) in this video conferencing system.Wherein, each MCU and MG by network directly or indirectly (by the intermediate equipment in the network) be registered to Video Server, the user can pass through Video Server and create and the managing video meeting.Concrete, the user will need to participate in the MG input Video Server of video conference, be issued on the MCU by the MCU of Video Server selection correspondence and with meeting information, be held a meeting by MCU, and the user passes through Video Server and carries out meeting control, meeting-place control.
Concrete, the MCU that supposes Video Server subordinate constitutes organization tree shown in Figure 3, territory A under the MCU1 has the superlative degree, the rank of territory B and territory D is taken second place, the rank of territory C and territory E is minimum, and (other division of this level is divided according to practical application scene needs, the territory that is superior to municipal government's network belonging in provincial government's network belonging territory for example, the territory of municipal government's network belonging is higher than the territory of county's government network belonging).Different MCU in the network are divided according to the territory under it, and the MCU in same territory constitutes one group, has one or more MCU in same group.In same territory, divide the backup priority (for example backing up priority according to secret needs divides) of each MCU according to actual needs, comprise that the MCU that backup functionality can not be provided is provided with sign to be forbidden as spare MCU, for example comprise the MCU in each territory among the A-E of territory respectively, and identify the backup priority of each MCU respectively, concrete Priority flag can be according to the customization of user's demand, should be with supposing in the scene: 0 expression MCU can not be as spare MCU, and 1 is other priority of lowermost level.
In the method that application scenarios of the present invention provides, also needing conference creation person's authority is limited, for example, is that different users distributes the different MCU that can manage according to business demand.Usually, the general user can only manage the MCU in its territory, place and the subordinate territory, and be not to manage all MCU, also can specify the different MCU of different user management in the same territory, for example user A can only manage three MCU in the same territory, and user B then can manage all MCU in the same territory.
To use the MCU holding video conference as example method provided by the invention to be introduced in organization tree shown in Figure 3, as shown in Figure 4, this method may further comprise the steps below:
Concrete, as the highest MCU of backup priority in the main MCU authority that can be conference creation person, also can be the operable MCU that conference creation person's the interior Video Server of authority selects at random with MCU.Need to prove that video conference A can use one or more MCU, for example if conference creation person is arranged in the territory B of Fig. 3, then it can only use a MCU holding video conference in this territory; Also can use other territories simultaneously, for example the MCU in territory A and the territory C holds a meeting promptly multistage multiple domain subtended conference jointly.
Step 402 finds that as Video Server the MCU A of meeting A breaks down, and VideoServer starts the spare MCU search.
Concrete, according to the founder's of meeting A authority, Video Server filters out the MCU that this conference creation person can manage, and therefrom filters out the MCU that backup functionality is not provided then; MCU and other not online MCU for fault also filter out; Filter out the available MCU tabulation that backup functionality is provided at last.Video Server seeks best spare MCU according to backup priority in the MCU tabulation, the promptly preferential the highest MCU of backup priority that selects is as spare MCU.For example, suppose that the MCU114 among the C of territory is main MCU among Fig. 3, when the MCU114 fault, Video Server seeks backup MCU in the C of territory.Backup MCU among the C of territory comprises that backup priority is that 3 MCU111, backup priority are that 0 MCU112, backup priority are 1 MCU113, and VideoServer preferentially selects to back up the highest MCU111 of priority as spare MCU.
After obtaining the highest MCU of backup priority, Video Server further obtains the resource user mode of this MCU, judge according to the resource user mode of this MCU whether this MCU can be as spare MCU, if the surplus resources of this MCU is enough set up video conference, then use this MCU as spare MCU; If the surplus resources of this MCU is not enough to set up video conference, then need be in the territory under this fault MCU select MCU except that the highest MCU of backup priority successively according to the backup priority order of MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU, concrete, when the surplus resources of the highest MCU of backup priority is not enough to set up video conference, Video Server selects backup priority time high MCU to set up video conference, if Video Server is known the surplus resources of the MCU that backup priority is time high and is not enough to set up video conference, then select the lower MCU of backup priority to set up video conference, all MCU under traversal fault MCU in the territory, use has the MCU of the surplus resources that the video conference of setting up needs as spare MCU, if there is not MCU to can be used as spare MCU, then seek the spare MCU failure in the territory under fault MCU.
MCU113 for example,, then needs to select to back up the inferior high MCU113 of priority, if can not then seek the spare MCU failure of MCU114 as spare MCU in the C of territory as spare MCU if the surplus resources of above-mentioned MCU111 is not enough to set up video conference.If the MCU12 among Fig. 3 among the B of territory is main MCU, then when the MCU12 fault, Video Server seeks backup MCU in the B of territory, because remaining MCU is MCU11 among the B of territory, its backup priority is 0, and MCU11 can not then seek the spare MCU failure as spare MCU in the B of territory.
Need to prove: Video Server comprises the acquisition process of the resource user mode of MCU: create meeting because the user need pass through Video Server, CU sets up video conference by Video Server control corresponding M, so can write down the resource user mode of each MCU of subordinate on the Video Server.Video Server obtains the resource user mode of spare MCU by searching record, and then judges whether its surplus resources enough sets up video conference.Video Server also can obtain the resource user mode of spare MCU by another kind of mode: Video Server sends resource to spare MCU and inquires after request, know the resource user mode of spare MCU according to the feedback of spare MCU, know whether spare MCU can set up video conference.
Also have other meetings to hold if MCUA is last,, search for suitable spare MCU according to the search step of meeting A.Because the manageable MCU of different conference creation persons can be different, so the spare MCU that different meeting is sought may be also different.
Need to prove, the preferential above-mentioned steps that adopts is looked for spare MCU among the present invention, but be not limited in above-mentioned steps, for example can also at first obtain the MCU that the resource user mode satisfies condition, and then in these MCU, screen and obtain spare MCU according to user right and backup priority; Perhaps, also can only screen according to the above-mentioned backup priority of mentioning and no longer consider the resource user mode, the spare MCU that obtains when screening screens according to backup priority when unavailable again.
By adopting method provided by the invention, video signal management server receiver, video request for conference is by subordinate MCU holding video conference, when being used for the MCU fault of holding video conference, select the highest MCU of backup priority as spare MCU in the territory of video signal management server under this fault MCU, improve the efficient that spare MCU is selected.
The invention provides a kind of video signal management server, be applied to multistage multiple domain video conferencing system, this system also comprises conference terminal and MCU, and as shown in Figure 5, described video signal management server comprises:
Spare MCU selected cell 12 is set up unit 11 with described meeting and is connected, and is used for when being used for the MCU fault of holding video conference, selects the highest MCU of backup priority as spare MCU in the territory under this fault MCU.
Described spare MCU selected cell 12 also is used for:
Obtain the MCU that described conference creation person can manage in the territory of authority under fault MCU according to the conference creation person of described video conference;
In the MCU that gets access to, select the highest MCU of backup priority as spare MCU.
Described spare MCU selected cell 12 comprises:
Authority MCU obtains subelement 121, is used for the MCU that can manage according to the described conference creation person of described conference creation person's authority acquiring;
State obtains subelement 122, obtains subelement 121 with described authority MCU and is connected, and is used for the resource user mode of the MCU that described conference creation person can manage, obtains having the MCU of the required surplus resources of the video conference of setting up;
Preferentially obtain subelement 123, obtain subelement 122 with described state and be connected, obtain from described state and select the highest MCU of backup priority the MCU that subelement obtains as spare MCU.
Described state obtains subelement 122 and also is used for:
Know the resource user mode of the MCU that described conference creation person can manage according to the resource operating position of each MCU that writes down; Perhaps
Inquire after request to the MCU transmission resource that described conference creation person can manage, know the resource user mode of the MCU that described conference creation person can manage according to the response of MCU.
Described spare MCU selected cell 12 also is used for:
Inquire about the resource user mode of the highest MCU of described backup priority;
If the highest MCU of described backup priority has the surplus resources that the video conference of setting up needs, the MCU that described backup priority is the highest is as described spare MCU;
Otherwise, selecting MCU except that the highest MCU of described backup priority successively according to the backup priority order of MCU in the territory under this fault MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU.
Described spare MCU selected cell 12 also is used for:
If select the spare MCU failure in the territory of described video signal management server under described fault MCU, select the highest MCU of backup priority in the higher level territory in the territory under described fault MCU as spare MCU.
Also comprise:
Dispensing unit 13 is used to dispose authority that conference creation person manages MCU and the backup MCU priority of each MCU.
By adopting video signal management server provided by the invention, video signal management server receiver, video request for conference is by subordinate MCU holding video conference, when being used for the MCU fault of holding video conference, select the highest MCU of backup priority as spare MCU in the territory of video signal management server under this fault MCU, improve the efficient that spare MCU is selected.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (14)
1. the system of selection of a spare MCU is applied to multistage multiple domain video conferencing system, and this system comprises conference terminal, multipoint control unit MCU and video signal management server, it is characterized in that, this method comprises:
Described video signal management server receiver, video request for conference is by subordinate MCU holding video conference;
When being used for the MCU fault of holding video conference, select the highest MCU of backup priority in the territory of described video signal management server under this fault MCU as spare MCU.
2. the method for claim 1 is characterized in that, selects the highest MCU of backup priority to comprise as spare MCU in the territory of described video signal management server under this fault MCU:
Described video signal management server obtains the MCU that described conference creation person can manage in the territory of authority under fault MCU according to the conference creation person of described video conference;
Described video signal management server selects the highest MCU of backup priority as spare MCU in the MCU that gets access to.
3. the method for claim 1 is characterized in that, selects the highest MCU of backup priority to comprise as spare MCU in the territory of described video signal management server under this fault MCU:
The MCU that described video signal management server can be managed according to the described conference creation person of described conference creation person's authority acquiring;
Described video signal management server obtains the resource user mode of the MCU that described conference creation person can manage, obtains having the MCU of the required surplus resources of the video conference of setting up;
Described video signal management server further selects the highest MCU of backup priority as spare MCU from the MCU that obtains.
4. method as claimed in claim 3 is characterized in that, the resource user mode that described video signal management server obtains the MCU that described conference creation person can manage comprises:
Described video signal management server is known the resource user mode of the MCU that described conference creation person can manage according to the resource operating position of each MCU of record; Perhaps
The MCU that described video signal management server can be managed to described conference creation person sends resource and inquires after request, knows the resource user mode of the MCU that described conference creation person can manage according to the response of MCU.
5. method as claimed in claim 1 or 2 is characterized in that, select in the territory of described video signal management server under this fault MCU the highest MCU of backup priority as spare MCU after, also comprise:
The resource user mode of the MCU that the described backup priority of described video signal management server queries is the highest;
If the highest MCU of described backup priority has the surplus resources that the video conference of setting up needs, described video signal management server MCU that described backup priority is the highest is as described spare MCU;
Otherwise, select MCU except that the highest MCU of described backup priority successively according to the backup priority order of MCU in the territory of described video signal management server under this fault MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU.
6. method as claimed in claim 1 or 2 is characterized in that, select in the territory of described video signal management server under this fault MCU the highest MCU of backup priority as spare MCU after, also comprise:
If select the spare MCU failure in the territory of described video signal management server under described fault MCU, select the highest MCU of backup priority in the higher level territory in the territory of described video signal management server under described fault MCU as spare MCU.
7. method as claimed in claim 1 or 2 is characterized in that, also comprises:
Described video signal management server configuration conference creation person manages the authority of MCU and the backup MCU priority of each MCU.
8. a video signal management server is applied to multistage multiple domain video conferencing system, and this system also comprises conference terminal and MCU, it is characterized in that, described video signal management server comprises:
The unit is set up in meeting, is used for according to the video conference request that receives by subordinate MCU holding video conference;
The spare MCU selected cell is set up the unit with described meeting and is connected, and is used for when being used for the MCU fault of holding video conference, selects the highest MCU of backup priority as spare MCU in the territory under this fault MCU.
9. video signal management server as claimed in claim 8 is characterized in that, described spare MCU selected cell also is used for:
Obtain the MCU that described conference creation person can manage in the territory of authority under fault MCU according to the conference creation person of described video conference;
In the MCU that gets access to, select the highest MCU of backup priority as spare MCU.
10. video signal management server as claimed in claim 8 is characterized in that, described spare MCU selected cell comprises:
Authority MCU obtains subelement, is used for the MCU that can manage according to the described conference creation person of described conference creation person's authority acquiring;
State obtains subelement, obtains subelement with described authority MCU and is connected, and is used to obtain the resource user mode of the MCU that described conference creation person can manage, obtains having the MCU of the required surplus resources of the video conference of setting up;
Preferentially obtain subelement, obtain subelement with described state and be connected, obtain from described state and select the highest MCU of backup priority the MCU that subelement obtains as spare MCU.
11. video signal management server as claimed in claim 10 is characterized in that, described state obtains subelement and also is used for:
Know the resource user mode of the MCU that described conference creation person can manage according to the resource operating position of each MCU that writes down; Perhaps
Inquire after request to the MCU transmission resource that described conference creation person can manage, know the resource user mode of the MCU that described conference creation person can manage according to the response of MCU.
12. the video signal management server is characterized in that as claimed in claim 8 or 9, described spare MCU selected cell also is used for:
Inquire about the resource user mode of the highest MCU of described backup priority;
If the highest MCU of described backup priority has the surplus resources that the video conference of setting up needs, the MCU that described backup priority is the highest is as described spare MCU;
Otherwise, selecting MCU except that the highest MCU of described backup priority successively according to the backup priority order of MCU in the territory under this fault MCU, the MCU that will have the surplus resources that the video conference of setting up needs is as spare MCU.
13. the video signal management server is characterized in that as claimed in claim 8 or 9, described spare MCU selected cell also is used for:
If select the spare MCU failure in the territory of described video signal management server under described fault MCU, select the highest MCU of backup priority in the higher level territory in the territory under described fault MCU as spare MCU.
14. the video signal management server is characterized in that as claimed in claim 8 or 9, also comprises:
Dispensing unit is used to dispose authority that conference creation person manages MCU and the backup MCU priority of each MCU.
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| CN 201010151935 CN101835025A (en) | 2010-04-21 | 2010-04-21 | Spare MCU selecting method and equipment |
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| CN 201010151935 CN101835025A (en) | 2010-04-21 | 2010-04-21 | Spare MCU selecting method and equipment |
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| CN105357469A (en) * | 2015-11-06 | 2016-02-24 | 国家电网公司 | MCU (multi control unit) resource pool deploying method and apparatus |
| CN106027948A (en) * | 2016-06-29 | 2016-10-12 | 华为技术有限公司 | Multi-level conference control system and method, and multi-point control unit (MCU) |
| CN106254301A (en) * | 2015-06-11 | 2016-12-21 | 中兴通讯股份有限公司 | A kind of conference backup method, management node and conference system |
| CN106452882A (en) * | 2016-10-21 | 2017-02-22 | 浙江宇视科技有限公司 | Backup switching method and system of universal network passport server |
| CN106534758A (en) * | 2015-09-09 | 2017-03-22 | 三亚中兴软件有限责任公司 | Conference backup method and conference backup device |
| CN108574820A (en) * | 2017-08-21 | 2018-09-25 | 北京视联动力国际信息技术有限公司 | A kind of transponder control method and device |
| CN109618123A (en) * | 2018-12-20 | 2019-04-12 | 广东电网有限责任公司 | A kind of video conferencing system |
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