CN100553322C - The backup method of video conference and device - Google Patents
The backup method of video conference and device Download PDFInfo
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- CN100553322C CN100553322C CNB2007101642867A CN200710164286A CN100553322C CN 100553322 C CN100553322 C CN 100553322C CN B2007101642867 A CNB2007101642867 A CN B2007101642867A CN 200710164286 A CN200710164286 A CN 200710164286A CN 100553322 C CN100553322 C CN 100553322C
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Abstract
The invention discloses a kind of backup method of video conference, comprising:, be the main conference creation backup meeting of a MCU according to the indication of the first multipoint control unit MCU; The conferencing information of main meeting is synchronized to the backup meeting; When satisfied imposing a condition, will back up meeting according to described conferencing information and switch to main meeting.The present invention can shorten the meeting break period when switching, and reduces the data in synchronization amount, and improves the resource utilization of MCU equipment.
Description
Technical field
The present invention relates to the video signal field, relate in particular to a kind of backup method and back-up device of video conference.
Background technology
The terminal that current video meeting system generally includes MCU (Multipoint Control Unit, multipoint control unit) and participates in video conference, these equipment rooms connect by network.In video conference, each terminal is communicated by letter with MCU in point-to-point mode, and terminal can send control, audio frequency, video and/or data to MCU; MCU is three and the service of three above terminal-joined video conferences, and centralized control is carried out in meeting, control, audio frequency, video and/or data that terminal sends are handled, and the Media Stream after will handling returns to each terminal.Video meeting system can also comprise management platform, and the management tool of video meeting system is provided.
The stable operation of MCU is most important for the reliability of video conference, in case various software, hardware fault cause the MCU operation irregularity, the video conference of holding is interrupted.Interrupt for fear of the meeting that the MCU Single Point of Faliure causes, the mode of available technology adopting MCU dual-host backup provides high availability, and its structure can be as shown in Figure 1.
Among Fig. 1, main frame MCU is connected with management platform with a plurality of terminals by the video signal private network with standby host MCU, and route can reach between main frame MCU and the standby host MCU.Main frame MCU moves videoconferencing service, and standby host MCU does not participate in the processing of videoconferencing service, and whether only monitor main frame MCU working properly.After main frame MCU broke down, standby host MCU can not receive main frame MCU and represents signal working properly, can automatically switch to main frame MCU, was transformed into the service operation state and was taken over videoconferencing service on the original host MCU by Status of Backups.After main frame MCU breaks down, interrupting will appear in video conference, reassemble meeting after standby host MCU is converted to main frame MCU.
In such scheme, standby host MCU carries out whole backup to main frame MCU, main frame MCU will be except that network interface be provided with various information, comprise the setting of main frame MCU, the information etc. of all video conferences on it, no matter whether it is relevant with the video conference of needs switching, all be synchronized on the standby host MCU, the data in synchronization amount is quite big; Standby host MCU does not participate in the Business Processing of video conference, in fact is in idle state, and two MCU of customer investment but can only actually use a MCU, and resource utilization is low; Standby host MCU is only to main frame MCU working properly detection the whether, but video conference main frame MCU on working properly as main frame MCU worked when undesired because of various reasons, and standby host MCU can not switch, and still may cause the interruption of meeting this moment; After main frame breaks down, the time that video conference interrupts is transformed into required time of service operation state and the time sum of holding a meeting required again for standby host MCU detects break down required time, standby host MCU of main frame MCU from Status of Backups, the required limited time of wherein holding a meeting again, and it is longer from the time that Status of Backups is transformed into the service operation state to detect break down required time and standby host MCU of main frame MCU, and the time that makes video conference interrupt is quite long.
Summary of the invention
At above-mentioned the deficiencies in the prior art part, the invention provides a kind of backup method and device of video conference, can reduce the synchrodata amount, and shorten meeting break period.
The invention provides a kind of backup method of video conference, comprising:
According to the indication of the first multipoint control unit MCU, the 2nd MCU is the main conference creation backup meeting of a MCU; The conferencing information of main meeting is synchronized to the backup meeting; When satisfied imposing a condition, will back up meeting according to described conferencing information and switch to main meeting; Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
Alternatively, described method also comprises: the operating state that detects a MCU;
The described operating state that comprises a MCU of imposing a condition is unusual.
Alternatively, described method also comprises: the state that detects main meeting;
Described imposing a condition comprises the abnormal state of main meeting.
Preferably, the sign that comprises main meeting in the indication of a described MCU;
Before creating the backup meeting, described method also comprises: if the sign of main meeting is identical with the sign of the existing meeting of this node, then notify a MCU to change main meeting identification.
Preferably, described method also comprises:
Calculate the required resource of backup meeting according to synchronous conferencing information;
If the resource that the required resource of backup meeting can provide greater than this node is then notified a MCU inadequate resource and deletion backup meeting, otherwise is reserved the required resource of backup meeting.
The invention also discloses a kind of backup method of video conference, comprising:
The one MCU is sent as the indication of the main conference creation backup meeting of this node to the 2nd MCU; The conferencing information of main meeting is synchronized to the backup meeting; When the backup meeting of the 2nd MCU switches to main meeting, the main meeting of this node is switched to the backup meeting; Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
Preferably, described method also comprises: detect the active conference type of backup meeting, whether switch to main meeting to determine it.
Preferably, comprise main meeting identification in the indication of described establishment backup meeting;
Described method also comprises: after receiving that the 2nd MCU changes the notice of main meeting identification, resend the indication of creating the backup meeting with amended main meeting identification.
The back-up device of a kind of video conference provided by the invention is located at the 2nd MCU, comprising:
The backup creating unit is used for indication according to a MCU, is the main conference creation backup meeting of a MCU; The backup lock unit is used for the conferencing information of main meeting is synchronized to the backup meeting; The backup switch unit is used for will backing up meeting according to described conferencing information and switching to main meeting when satisfied imposing a condition; Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
Alternatively, described device also comprises the Equipment Inspection unit, is used for detecting the operating state of a MCU;
Described imposing a condition comprises that a MCU operating state is unusual.
Alternatively, described device also comprises the meeting detecting unit, is used for detecting the state of main meeting;
Described imposing a condition comprises that main conference status is unusual.
Preferably, also comprise main meeting identification in the indication of a described MCU;
Described backup creating unit also comprises the sign notification module, is used for checking whether described main meeting identification is identical with the sign of the existing meeting of this node, if identical then notify a MCU to change main meeting identification; Otherwise create the backup meeting by the backup creating unit.
Preferably, described device also comprises the resource reservation unit, be used for calculating the required resource of backup meeting according to synchronous conferencing information, and when the resource that the required resource of backup meeting can provide greater than this node, notify a MCU inadequate resource and deletion backup meeting, otherwise reserve the required resource of backup meeting.
The present invention also provides a kind of back-up device of video conference, is located at a MCU, comprising:
Indicating member is used for being sent as to the 2nd MCU the indication of the main conference creation backup meeting of this node; Main lock unit is used for the conferencing information of main meeting is synchronized to the backup meeting; Main switch unit is used for when the backup meeting of the 2nd MCU switches to main meeting, and the main meeting of this node is switched to the backup meeting; Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
Preferably, described device also comprises the type detection unit, is used for detecting the active conference type of backup meeting, whether switches to main meeting to determine it.
Preferably, comprise main meeting identification in the indication of described establishment backup meeting;
Described device also comprises sign change unit, is used for after receiving that the 2nd MCU changes the notice of main meeting identification, revises main meeting identification and notifies indicating member to resend the indication of creating the backup meeting with amended main meeting identification.
Among the present invention video conference is backed up, the conferencing information of main meeting is synchronized to backup meeting into its establishment, under imposing a condition, will back up meeting and switch to main meeting to continue to provide TV conference service.With respect to the technical scheme that in the prior art MCU equipment is backed up, the MCU at backup meeting place can move the videoconferencing service of oneself simultaneously among the present invention, has improved resource utilization; Because the MCU at backup meeting place also is in the service operation state, can directly hold a meeting again, no longer needs to be transformed into from Status of Backups the time of service operation state, shortened the time that meeting is interrupted when switching; In addition, the present invention does not need being provided with of synchronous MCU etc. and the irrelevant information of main meeting, has reduced the data in synchronization amount;
State to main meeting among the present invention detects, and the normal but main conference status of the MCU operating state at main meeting place also can switch when unusual, has further improved the availability of video conference.
Description of drawings
Fig. 1: the topology example figure of the video communication service system of available technology adopting MCU dual-host backup;
Fig. 2: the flow chart of video conference backup method embodiment one of the present invention;
Fig. 3: the process chart of the MCU at main meeting place among the video conference backup method embodiment two of the present invention;
Fig. 4: the process chart of the MCU at backup meeting place among the video conference backup method embodiment two of the present invention;
Fig. 5: the structural representation of video meeting system of the present invention.
Embodiment
Available technology adopting standby host MCU is as the backup of main frame MCU, the high availability that comes down to MCU equipment of its realization and be not the high availability of videoconferencing service.Among the present invention, with the object of video conference as backup, back up on another MCU operating in a video conference on the MCU, the MCU at the MCU at main meeting place and backup meeting place can move other videoconferencing services separately simultaneously, and the high availability of videoconferencing service is provided when improving the MCU utilance.
The flow process of video conference backup method embodiment one of the present invention as shown in Figure 2.In the present embodiment, a MCU is the MCU at main meeting place, and the 2nd MCU is the MCU at backup meeting place.
Step S210: it is main conference creation backup meeting that a MCU indicates the 2nd MCU.
The one MCU as main meeting, sends the indication of creating backup meeting to the 2nd MCU with the video conference that needs on it to back up, and the 2nd MCU is designated as main conference creation backup meeting according to this.
Step S220: it is synchronous with the conferencing information of backup meeting that a MCU and the 2nd MCU carry out main meeting.
The conferencing information of main meeting and backup meeting can be initiated by a MCU synchronously, also can initiate by the 2nd MCU, concrete mutual agreement that adopts and message format can be determined according to the actual requirements by the keeper of video communication service system, can also be adopted self-defining agreement and message format.Conferencing information can regularly carry out synchronously, carries out in the time of also can changing at the conferencing information of main meeting.
Synchronous conferencing information can be determined by the keeper, as long as the 2nd MCU can hold main meeting according to these information.Conferencing information generally includes the terminal list that participates in a conference, and some parameters of video conference, as employed audio/video encoding/decoding etc.When the meeting switching took place, the backup meeting can adopt current conferencing information to hold a meeting like this.
Step S230: the 2nd MCU judges whether to satisfy imposing a condition that meeting switches, and does not satisfy and then continues to carry out this step, satisfied then execution in step S240.
The backup meeting that the keeper can set on the 2nd MCU switches to main meeting under which kind of condition, the 2nd MCU correspondingly imposes a condition and judges whether satisfying these.
For example, imposing a condition can be that a MCU operating state is unusual, comprises that equipment fault, suspension and other cause a MCU can not normally move the situation of TV conference service.At this moment the 2nd MCU need detect the operating state of a MCU; Imposing a condition can be that main conference status is unusual, promptly can not normally move the situation of videoconferencing service, can cause meeting to be interrupted even the one MCU this moment is in normal operating conditions, and the 2nd MCU also needs the state of main meeting is detected in this case; Imposing a condition to comprise that administrator hand carries out meeting and switch, and when keeper's inputting switching command, the 2nd MCU will back up meeting and upgrade to main meeting; Certainly, imposing a condition can also be the combination of above-mentioned various situations.
Step S240: the 2nd MCU will back up meeting and switch to main meeting.
If master's meeting is held when switching, then this video conference interrupts.After the conference type that the 2nd MCU will back up meeting is changed to main meeting, hold a meeting again according to conferencing information when preamble.Because the 2nd MCU also at the operation videoconferencing service, can directly hold a meeting, and needn't finish start-up course as wait MCU in the prior art, so the present invention has shortened the break period of video conference.
Step S250: when the backup meeting on the 2nd MCU switched to main meeting, a MCU switched to the backup meeting with main meeting.
Switch for the meeting that administrator hand starts, a MCU can switch to the backup meeting with main meeting immediately receiving after the keeper instructs, and can will back up meeting with the 2nd MCU in this case and switch to main meeting and carry out simultaneously.For the unusual situation of main conference status, often need a MCU that the active conference type that the 2nd MCU goes up the backup meeting is detected, after the active conference type that detects former backup meeting was main meeting, a MCU was changed to the backup meeting with the conference type of the former main meeting on this node.For the unusual situation of a MCU operating state, then might finish meeting and switch at the 2nd MCU, when a MCU recovers normal operating conditions, former main meeting could be switched to the backup meeting.
After step S250, main meeting moves on the 2nd MCU, and the backup meeting moves on a MCU, and judge whether satisfy the imposing a condition of meeting switching by a MCU this moment, and in the satisfied switching of backing up meeting to main meeting when imposing a condition.
The 2nd MCU can normally move videoconferencing service in whole flow process, for example hold the video conference of oneself etc., and needn't be in idle state.Such two MCU can work simultaneously, have improved the utilance of resource.In addition, must back up mutually by two MCU in the prior art, as long as and among the present invention main meeting be positioned at different MCU with the backup meeting and go up, the main meeting of a plurality of like this correspondences and backup meeting can be moved by many MCU, have improved the flexibility of backing up.
In video conference backup method embodiment two of the present invention, a MCU is the MCU at main meeting place, and the 2nd MCU is the MCU at backup meeting place; On the one MCU and the 2nd MCU, the conference type of video conference comprises 3 kinds, main meeting, backup meeting and common conference, the wherein video conference of common conference for not backing up.Meeting is switched in the present embodiment imposes a condition is that the unusual or main conference status of MCU operating state at main meeting place is unusual.
The handling process of a MCU as shown in Figure 3 among the embodiment two.
Step S301: the keeper creates video conference on a MCU, and the conference type of video conference is set, and the meeting of needs backup is set to main meeting, and the meeting that does not need to back up is set to common conference.
Step S302: judge whether this video conference is main meeting, if execution in step S303, otherwise hold common conference.
Step S303: the 2nd MCU that specifies backup meeting place.
Can pass through assigned ip (Internet Protocol, Internet protocol) address and specify the 2nd MCU, also can specify by other addressable modes of network.
Step S304: a MCU is synchronous to the 2nd MCU initiation conferencing information, carries the conferencing information of main meeting and the sign of main meeting in the conferencing information sync message, and receives the response of the 2nd MCU.
In the present embodiment, a MCU adopts the first session information synchronization of main meeting to indicate the 2nd MCU to create the backup meeting of this main meeting.When the 2nd MCU receives the conferencing information sync message,, then the synchronous of conferencing information carried out in this backup meeting if the main meeting identification in this message backs up the main meeting identification of meeting correspondence for certain that created; If the main meeting identification in this message is not created the backup meeting as yet on this MCU, then this message is simultaneously also as the indication of creating the backup meeting.
Conferencing information can adopt Transmission Control Protocol to carry out synchronously, and a kind of conferencing information synchronizing process of recommending in this enforcement comprises that the TCP connection is set up, conferencing information transmits, resource is judged, TCP connects the dismounting four-stage:
Connect establishment stage at TCP, follow the three-way handshake process of Transmission Control Protocol and set up the TCP connection.A MCU judges whether the 2nd MCU exists in this stage, and if there is no, the conference type of then changing this video conference is a common conference, and holds in the common conference mode; If the 2nd MCU exists, then continue follow-up flow process.
In the conferencing information transmit stage, a MCU sends to the 2nd MCU with meeting information and the packing of main meeting identification by the TCP connection of setting up, and the 2nd MCU carries out confirmation of receipt.Can adopt following data structure pack conferencing information and main meeting identification:
typedef?struct?CONFERENCE_INFO
{
unsigned?char?ConferenceName；
other?Conference?Parameter；
terminalstruct?TerminalList；
......
}ConferenceInfo
In the above-mentioned data structure, ConferenceName is main meeting identification, is used to distinguish different video conferences; Other Conference Parameter is the parameter information of main meeting, can comprise audio/video encoding/decoding that main meeting uses, whether enable parameters such as many split screens, many split screen modes; TerminalList is the terminal list that participates in a conference, and promptly which joining meeting to terminal is active conference convene or allow.The packing of conferencing information and segmentation are carried out in application layer usually, transmit on the TCP that sets up between a MCU and the 2nd MCU connects, and finish up to all message transmission.
The resource decision stage is carried out on the 2nd MCU, first session information synchronization to main meeting, whether the main meeting identification that the 2nd MCU searches in the indication is identical with existing meeting identification on this node, if it is identical then identification collision takes place, in the response synchronous, notify a MCU to revise main meeting identification, enter TCP afterwards and connect teardown phase conferencing information; Otherwise create the backup meeting, and continue following processing procedure.
To conferencing information is synchronous each time, the 2nd MCU unpacks the conferencing information that receives, according to the required resource of conferencing information calculating backup meeting wherein, and compare with the current resource that can provide of this node, if the current resource that can provide of this node can not satisfy the demand of backup meeting, then in response, notify a MCU inadequate resource and deletion backup meeting to the conferencing information sync message; If the resource of the 2nd MCU is enough, then return success response to a MCU.
After the response of conferencing information end of transmission, the 2nd MCU arrives a MCU, enter TCP and connect teardown phase, follow the connection demolishing process of Transmission Control Protocol.
After the 2nd MCU successfully created the backup meeting, it is synchronous that a MCU and the 2nd MCU regularly carry out conferencing information, and perhaps a MCU initiates the conferencing information synchronizing process to the 2nd MCU when conferencing information changes.
Step S305: judge according to the response of the 2nd MCU whether its resource is enough, if execution in step S306 then, otherwise the meeting type is revised as common meeting, and hold common conference.
Step S306: the response according to the 2nd MCU judges whether to take place main meeting identification conflict, if, then revise and change step S304 behind the main meeting identification, send the indication of creating the backup meeting to the 2nd MCU again; Otherwise execution in step S307.
Step S307: detect the operating state of MCU, the state of meeting and the type of meeting mutually with the 2nd MCU.
A MCU and the 2nd MCU regularly detect the other side's operating state, the state of meeting and the type of meeting in the present embodiment.Testing process can adopt TCP or udp protocol, and a kind of mode of recommendation is as follows:
When a MCU detects, send the UDP inquiry message to the 2nd MCU, notify the receiving port number of the 2nd this node of MCU, the active conference type of this node, and inquire the operating state of the 2nd MCU and the state of backup meeting; The 2nd MCU returns the UDP response message with the receiving port number of a MCU, wherein carries the operating state of this node and the state of backup meeting.When the 2nd MCU detects, send the UDP inquiry message to a MCU, notify the receiving port number of this node of MCU, the active conference type of this node, and inquire the operating state of a MCU and the state of main meeting; Whether the one MCU returns the UDP response message with the receiving port number of the 2nd MCU, wherein carry and return the state and the main meeting of the operating state of this node, main meeting and hold.
In the UDP inquiry message, can comprise following data structure:
typedef?struct?CONFERENCE_STATUS_REQUEST
{
unsigned?char?ConferenceName；
unsigned?int?ConferenceLabel；
unsigned?int?ListeningPort；
......
}ConferenceStatusRequest
In the above-mentioned data structure, ConferenceName is main meeting identification or backup meeting identification (same meeting identification is adopted in main meeting and backup meeting usually); ConferenceLabel shows the conference type among the MCU of inquiry message, and its value is the main meeting of 1 representative, and its value is 2 representative backup meetings, and its value is 0 represent common conference, and other values keep use; ListeningPort is the receiving port number of this node.
Response message can comprise following data structure:
typedef?struct?CONFERENCE_STATUS_RESPONSE
{
unsigned?char?ConferenceName；
unsigned?int?ConferenceStatus；
......
}ConferenceStatusResponse
Wherein, ConferenceName is main meeting identification or backup meeting identification; ConferenceStatus is a conference status, its value is 1 to represent the operating state of MCU normal and conference status is normal, its value is 2 to represent the operating state of MCU normal and conference status is unusual, its value is 3 to represent the operating state of MCU unusual and conference status is normal, and its value is 4 to represent the operating state of MCU unusual and conference status is unusual; Because whether conference status normally generally all can not move videoconferencing service when the operating state of MCU was unusual, therefore also can be with above-mentioned value 3 and value be 4 situation merging, represent the MCU operating state unusual with a value.
Step S308: judge whether that the operating state of the 2nd MCU or the state of backup meeting change, if then show, point out to the keeper.
If a MCU does not receive the response of the 2nd MCU to the inquiry message of this node transmission, do not receive the inquiry message of the 2nd MCU simultaneously yet, a MCU is thinking that the operating state of the 2nd MCU is unusual after surpassing the scheduled time or continuous several; When the 2nd MCU showed that in the response to inquiry message the unusual or backup conference status of oneself operating state is unusual, a MCU thought that the 2nd MCU operating state is unusual or the backup conference status is unusual.
Step S309: whether the conference type of judging the 2nd MCU is the backup meeting, if then main meeting is switched to the backup meeting.
When the 2nd MCU detect the unusual or main conference status of operating state of a MCU unusual after, will back up meeting and switch to main meeting, and continuation execution in step S307, carry out the detection of operating state, conference status and conference type mutually with a MCU.The operating state of a MCU is normal if the main conference status of a MCU is unusual, after then a MCU learns that its conference type becomes main meeting from the UDP inquiry message that the 2nd MCU sends, the main meeting of this node can be switched to the backup meeting; If the operating state of a MCU is unusual, then after the operating state of a MCU is recovered, from the UDP inquiry message that the 2nd MCU sends, learn that its conference type becomes main meeting after, the main meeting of this node is switched to the backup meeting.
The handling process of the 2nd MCU as shown in Figure 4 among the embodiment two.
Step S401: the conferencing information that responds MCU initiation is synchronous.
In conjunction with above-mentioned description to a MCU handling process as can be known, the 2nd MCU extracts main meeting identification from the conferencing information sync message, if this main meeting identification is the main meeting identification of certain backup meeting correspondence of having created, then the synchronous of conferencing information carried out in this backup meeting; If this main meeting identification is not created the backup meeting as yet on this MCU, then this information synchronization is the first session information synchronization of this main meeting, simultaneously also as the indication of creating the backup meeting.
First session information synchronization to main meeting, whether the main meeting identification that the 2nd MCU searches in the indication is identical with existing meeting identification on this node, if identical then identification collision takes place, return the response synchronous to a MCU to conferencing information, notify a MCU to revise main meeting identification; Otherwise create the backup meeting.
Conferencing information each time to main meeting is synchronous, the 2nd MCU calculates the required resource of backup meeting according to the conferencing information that receives, and compare with the current resource that can provide of this node, if the current resource that can provide of this node can not satisfy the demand of backup meeting, then in response, notify a MCU inadequate resource and deletion backup meeting to the conferencing information sync message; If the resource of the 2nd MCU is enough, then return success response to a MCU.
After the 2nd MCU successfully created the backup meeting, it is synchronous that a MCU and the 2nd MCU regularly carry out conferencing information, and perhaps a MCU initiates the conferencing information synchronizing process to the 2nd MCU when conferencing information changes.
A kind of conferencing information synchronizing process that present embodiment is recommended sees also the description to step S304, no longer repeats herein.
Step S402: detect the operating state of MCU, the state of meeting and the type of meeting mutually with a MCU.A MCU and the 2nd MCU regularly detect the other side's operating state, the state of meeting and the type of meeting in the present embodiment, describe the explanation that sees also step S307 in detail.
Step S403: whether the state of judging the operating state of a MCU or main meeting is unusual, if then execution in step S404 will back up meeting and switch to main meeting.How to judge that the operating state of a MCU or main conference status see also the description to step S308 unusually.
After will backing up meeting and switching to main meeting, the 2nd MCU continues regularly to detect the operating state of MCU, the state of meeting and the type of meeting mutually with a MCU.The one MCU switches to the backup meeting with former main meeting after detecting the 2nd MCU and will backing up meeting and switch to main meeting, and the backup meeting that continues to go up as the 2nd MCU main meeting provides high availability.
One of ordinary skill in the art will appreciate that the present invention can realize in conjunction with known hardware platform by computer program, 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 computer program (or claiming software product), this computer program is stored in the storage medium, comprises that some instructions are used so that a management equipment (hardware platform that possesses enough this computer programs of operation) is carried out the described method of each embodiment of the present invention.
A kind of video meeting system that can implement the method for the invention comprises the MCU 500 at main meeting place and the MCU 600 at backup meeting place as shown in Figure 5.MCU 500 comprises indicating member 520, main lock unit 530 and main switch unit 540, can also comprise type detection unit 550 and sign change unit 510; MCU 600 comprises backup creating unit 610, backup lock unit 620 and backup switch unit 630, can also comprise Equipment Inspection unit 650, meeting detecting unit 660 and resource reservation unit 640.
MCU 500 to the indication that MCU 600 is sent as this main conference creation backup meeting, comprises main meeting identification by indicating member 520 in this indication after creating main meeting.After the backup creating unit 610 of MCU 600 receives the indication of MCU 500, be the main conference creation backup meeting of MCU 500 as indicated.Backup creating unit 610 can comprise the sign notification module, from the indication of MCU 500, parse main meeting identification, whether the sign of searching existing meeting on the MCU 600 is identical with this main meeting identification, if it is identical then identification collision takes place, the main meeting identification of sign notification module notice MCU 500 changes, and no longer create the backup meeting; If difference then create the backup meetings by backup creating unit 610.
MCU 500 can comprise sign change unit 510, after the notice of receiving MCU 600 change meeting identifications, revises main meeting identification, and notice indicating member 520 adopts amended main meeting identification to send the indication of creating the backup meeting to MCU 600 again.
After MCU 600 created the backup meeting, the main lock unit 530 of MCU 500 and the backup lock unit 620 of MCU600 were synchronized to the backup meeting with the conferencing information of main meeting.Conferencing information can regularly carry out synchronously, carries out in the time of also can changing at the conferencing information of main meeting.
MCU 600 can comprise resource reservation unit 640, after receiving the synchronous conferencing information of MCU 500, resource reservation unit 640 calculates the required resource of backup meeting according to conferencing information, if back up the required resource of meeting greater than the current resource that can provide on the MCU 600, inadequate resource of this node of notice MCU500 and deletion backup meeting; If current node is enough to provide the backup meeting required resource, then the meeting of reserved resource incense part is used.
When satisfied imposing a condition, the backup switch unit 630 of MCU 600 will back up meeting and switch to main meeting, and the change conference type is main meeting.When the backup meeting of MCU 600 switched to main meeting, the main switch unit 540 of MCU 500 switched to the backup meeting with the main meeting of this node.
The operating state that can comprise MCU 500 of imposing a condition is unusual, and this moment, MCU 600 can comprise Equipment Inspection unit 650, detected the operating state of MCU 500, when the operating state that detects MCU 500 is unusual, and notice backup switch unit 630.
Imposing a condition to comprise the abnormal state of main meeting, and this moment, MCU 600 can comprise meeting detecting unit 660, detected the state of main meeting, when detecting the unusual time notice backup switch unit 630 of main conference status.
MCU 500 can comprise type detection unit 550, after meeting changes main meeting into by backup, notifies main switch unit 540 in the conference type that detects MCU 600, by main switch unit 540 the main meeting of this node is switched to the backup meeting.
Among the present invention, MCU is last can to move main meeting, also can move the backup meeting that other MCU go up main meeting simultaneously, and those skilled in the art all can understand, and each unit among the above-mentioned MCU 500 and each unit among the MCU 600 can be positioned on the same MCU.MCU is last can also to be moved does not simultaneously need the common conference that backs up.
The present invention has avoided in the prior art the required start-up course of standby host MCU when active and standby switchings takes place, and has reduced the time of meeting interruption, has improved the continuity of meeting effectively; The MCU at backup meeting place still can hold other meetings and carry out meeting control among the present invention, has utilized device resource more fully, has reduced user's cost of investment; The invention is not restricted to the mutual backup of two MCU, a plurality of main meetings and corresponding backup meeting can be dispersed on a plurality of MCU, have improved the flexibility of backup; The information relevant with meeting only synchronously among the present invention needn't reduce the data in synchronization amount as nearly all information on the synchronous MCU in the prior art.
What need statement is that foregoing invention content and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the qualification to protection range of the present invention.Those skilled in the art are in spirit of the present invention and principle, when doing various modifications, being equal to and replacing or improve.Protection scope of the present invention is as the criterion with appended claims.
Claims (16)
1. the backup method of a video conference is characterized in that, comprising:
According to the indication of the first multipoint control unit MCU, the 2nd MCU is the main conference creation backup meeting of a MCU;
The conferencing information of main meeting is synchronized to the backup meeting;
When satisfied imposing a condition, will back up meeting according to described conferencing information and switch to main meeting;
Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
2. the backup method of video conference according to claim 1 is characterized in that described method also comprises: the operating state that detects a MCU;
The described operating state that comprises a MCU of imposing a condition is unusual.
3. the backup method of video conference as claimed in claim 1 or 2 is characterized in that described method also comprises: the state that detects main meeting;
Described imposing a condition comprises the abnormal state of main meeting.
4. the backup method of video conference according to claim 1 is characterized in that, comprises the sign of main meeting in the indication of a described MCU;
Before creating the backup meeting, described method also comprises: if the sign of main meeting is identical with the sign of the existing meeting of this node, then notify a MCU to change main meeting identification.
5. the backup method of video conference according to claim 1 is characterized in that described method also comprises:
Calculate the required resource of backup meeting according to synchronous conferencing information;
If the resource that the required resource of backup meeting can provide greater than this node is then notified a MCU inadequate resource and deletion backup meeting, otherwise is reserved the required resource of backup meeting.
6. the backup method of a video conference is characterized in that, comprising:
The one MCU is sent as the indication of the main conference creation backup meeting of this node to the 2nd MCU;
The conferencing information of main meeting is synchronized to the backup meeting;
When the backup meeting of the 2nd MCU switches to main meeting, the main meeting of this node is switched to the backup meeting;
Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
7. as the backup method of video conference as described in the claim 6, it is characterized in that described method also comprises: detect the active conference type of backup meeting, whether switch to main meeting to determine it.
8. as the backup method of video conference as described in claim 6 or 7, it is characterized in that, comprise main meeting identification in the indication of described establishment backup meeting;
Described method also comprises: after receiving that the 2nd MCU changes the notice of main meeting identification, resend the indication of creating the backup meeting with amended main meeting identification.
9. the back-up device of a video conference is characterized in that, is located at the 2nd MCU, comprising:
The backup creating unit is used for indication according to a MCU, is the main conference creation backup meeting of a MCU;
The backup lock unit is used for the conferencing information of main meeting is synchronized to the backup meeting;
The backup switch unit is used for will backing up meeting according to described conferencing information and switching to main meeting when satisfied imposing a condition;
Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
10. as the back-up device of video conference as described in the claim 9, it is characterized in that described device also comprises the Equipment Inspection unit, be used for detecting the operating state of a MCU;
Described imposing a condition comprises that a MCU operating state is unusual.
11. the back-up device as video conference as described in claim 9 or 10 is characterized in that described device also comprises the meeting detecting unit, is used for detecting the state of main meeting;
Described imposing a condition comprises that main conference status is unusual.
12. the back-up device as video conference as described in the claim 9 is characterized in that, also comprises main meeting identification in the indication of a described MCU;
Described backup creating unit also comprises the sign notification module, is used for checking whether described main meeting identification is identical with the sign of the existing meeting of this node, if identical then notify a MCU to change main meeting identification; Otherwise create the backup meeting by the backup creating unit.
13. back-up device as video conference as described in the claim 9, it is characterized in that, described device also comprises the resource reservation unit, be used for calculating the required resource of backup meeting according to synchronous conferencing information, and when the resource that the required resource of backup meeting can provide greater than this node, notify a MCU inadequate resource and deletion backup meeting, otherwise reserve the required resource of backup meeting.
14. the back-up device of a video conference is characterized in that, is located at a MCU, comprising:
Indicating member is used for being sent as to the 2nd MCU the indication of the main conference creation backup meeting of this node;
Main lock unit is used for the conferencing information of main meeting is synchronized to the backup meeting;
Main switch unit is used for when the backup meeting of the 2nd MCU switches to main meeting, and the main meeting of this node is switched to the backup meeting;
Wherein, a described MCU and the 2nd MCU move other videoconferencing services separately simultaneously.
15. the back-up device as video conference as described in the claim 14 is characterized in that described device also comprises the type detection unit, is used for detecting the active conference type of backup meeting, whether switches to main meeting to determine it.
16. the back-up device as video conference as described in claim 14 or 15 is characterized in that, comprises main meeting identification in the indication of described establishment backup meeting;
Described device also comprises sign change unit, is used for after receiving that the 2nd MCU changes the notice of main meeting identification, revises main meeting identification and notifies indicating member to resend the indication of creating the backup meeting with amended main meeting identification.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101642867A CN100553322C (en) | 2007-10-23 | 2007-10-23 | The backup method of video conference and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2007101642867A CN100553322C (en) | 2007-10-23 | 2007-10-23 | The backup method of video conference and device |
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| CN101159842A CN101159842A (en) | 2008-04-09 |
| CN100553322C true CN100553322C (en) | 2009-10-21 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101631011B (en) * | 2008-07-16 | 2012-09-05 | 中国科学院声学研究所 | Hotspare method and system suitable for device for processing and forwarding IP media stream in real time |
| CN101753339B (en) * | 2008-12-09 | 2012-02-29 | 中兴通讯股份有限公司 | Method for realizing conference backup function of multi-point control unit and system thereof |
| CN102316301B (en) | 2010-06-29 | 2014-05-07 | 华为终端有限公司 | Method, system and device for switching conferences |
| CN102377980A (en) * | 2010-08-16 | 2012-03-14 | 杭州华三通信技术有限公司 | Backup method and system of MCU (multi-point control unit) in video conference |
| CN104639867B (en) * | 2013-11-14 | 2019-09-27 | 南京中兴软件有限责任公司 | A kind of video conference restoration methods and system |
| CN103702065B (en) * | 2014-01-06 | 2017-07-21 | 苏州科达科技股份有限公司 | The standby system and method for a kind of video conferencing system |
| CN104135640B (en) * | 2014-08-08 | 2017-12-29 | 华为技术有限公司 | The method, apparatus and system of meeting migration |
| CN106162044A (en) * | 2015-04-15 | 2016-11-23 | 中兴通讯股份有限公司 | Meeting method for reconstructing and device |
| 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 |
| CN106534758B (en) * | 2015-09-09 | 2021-01-08 | 三亚中兴软件有限责任公司 | Conference backup method and device |
| CN111093048B (en) * | 2019-12-31 | 2021-07-20 | 江苏大恒创科技术有限公司 | Novel multimedia video conference system and implementation method |
| CN111970475A (en) * | 2020-08-28 | 2020-11-20 | 深圳市融讯视通科技有限公司 | Seamless switching method and system for dedicated line main MCU and standby MCU |
| CN117411861A (en) * | 2022-07-07 | 2024-01-16 | 华为云计算技术有限公司 | Conference control method, device and communication system |
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