CN101662645A - Backup method for media processing unit, multipoint control unit and video communication system - Google Patents
Backup method for media processing unit, multipoint control unit and video communication system Download PDFInfo
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Abstract
The invention discloses a backup method for media processing units in a multipoint control unit MCU, a multipoint control unit and a video communication system. The method comprises the following steps: a multipoint processor MP in the MCU detects the state of a corresponding media processing unit by periodically polling the status message reported by each media processing unit in the MCU; and ifthe current media processing unit is detected to be out of service, the work of the media processing unit with failure is interrupted through the MP to select a new media processing unit, parameters used by the media processing unit with failure and a corresponding terminal thereof are transmitted to the new media processing unit, and the new media processing unit is started to replace the media processing unit with failure to conduct media service processing. By adopting the method, after the media processing units are out of service, the terminal is called without waiting for the MCU, or theMCU does not need to be called by the terminal, therefore, the latency time of the users is reduced, and the seamless connection at the side of the MCU is realized.
Description
Technical field
The present invention relates to the video signal technology, relate in particular to a kind of multipoint control unit (Multi-Point ControlUnit, abbreviation MCU) backup method of media processing units also relates to a kind of video communication service system that possesses the MCU of multimedia unit backup functionality and have this MCU in.
Background technology
Videoconferencing service is called video conference business or video conferencing service again.Video conference business is meant the meeting that video, audio frequency, data communication are integrated in one, but the image in each meeting-place of real-time Transmission and sound make each meeting-place from be in same meeting in logic.
Whole video communication service system can be abstracted into framework as shown in Figure 1, comprises gatekeeper GK (GateKeeper), network management platform, multipoint control unit MCU, the Internet and terminal.The user comes managerial meeting by network management platform, as meeting, Guan Hui etc.Core in the video communication service system is multipoint control unit MCU, multipoint controller MC (Mulit-point Controller) wherein, it is used to provide the control ability of multipoint conference, meeting is managed concentratedly, and it can be controlled multipoint processor MP and each terminal and carry out the coordination ability and the priority of voice, video, data encoding and decoding and be provided with etc.; Multipoint processor MP (Multi-point Processor), it mainly is responsible for multipoint conference sound intermediate frequency, and the focusing on of video and data flow comprises mixing, switching and function such as synchronous, and multipoint processor MP is managing a plurality of media processing units; Media processing units, it can be used to handle media information, can use as DSP processing modules implement in the practical application, media processing units is distributed to the described media information end that will achieve the goal with the media information the handled input/output interface by MCU, and each media processing units can be responsible for the media communication with one or more terminals.
At present, in videoconferencing service, the normal use that guarantees the media communication function is the focus that user and manufacturer pay close attention to.In general, main consider to avoid two places to break down: one is the output and the importation of media information, as the network interface of MCU, medium access board etc.; Another is the part of among the MCU media information being handled, i.e. media processing units.
In conventional solution, after media processing units broke down, the media communication of MCU and terminal room was interrupted, and its processing method mainly contains following two kinds:
1) MCU detects with the media communication of described terminal room undesiredly, hangs up described terminal, and described terminal is called out again, call out rebulid after, MCU will rebulid the described terminal distribution of calling again in current available media processing units; Perhaps
2) terminal detect and MCU between break down, described terminal initiatively withdraws from meeting, again described MCU is called out then.Described MCU again with described terminal distribution in current available media processing units.
All inevitably there is similar shortcoming in these conventional solution:
1) medium are interrupted or terminal detection medium interruption all needs the regular hour no matter MCU detects, and medium are relevant with network, therefore detecting the time that medium are interrupted all can be long, can allow this long break time the user obviously feel the stagnation of terminal image;
2) MCU again calling terminal or terminal call out MCU again, the user can perceive terminal and disconnect, thinks fault took place, and has influence on user experience.
Summary of the invention
At problems of the prior art, main purpose of the present invention is to propose the backup method of media processing units among the MCU and multipoint control unit, video communication service system, guarantees not occur picture and pauses, calls out situation about disconnecting in the former professional corresponding media processing units back that goes wrong.
In order to address the above problem, the invention provides the backup method of media processing units in a kind of multipoint control unit, comprise: the status message that the multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling, detect the state of corresponding media processing units; If detecting the current media processing unit breaks down, described MP interrupts the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter pass to new media processing units, start described new media processing units and replace the described media processing units that breaks down and continue to carry out media business and handle with described counterpart terminal.
Further, the status message that multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling, the step that the state of corresponding media processing units is detected, also comprise: described MP sets the poll timer, and described poll timer duration regularly reports the report cycle of heartbeat keep-alive message more than or equal to described media processing units; Set a counting thresholding and define a counting respectively for each media processing units, the counting of described media processing units is used to be recorded under the described poll timer expiry state does not receive that described media processing units reports the number of times of heartbeat keep-alive message.
Further, the status message that the multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling, the step to the state of corresponding media processing units detects comprises:
Each media processing units regularly reports the heartbeat keep-alive message to described MP;
When described poll timer expiry, the heartbeat keep-alive message that described each media processing units of MP poll reports detects the state of corresponding media processing units;
If receive the heartbeat keep-alive message that the current media processing unit reports, described MP waits for poll timer expiry next time with the counting zero clearing of described media processing units;
If do not receive the heartbeat keep-alive message that the current media processing unit reports, described MP adds one with the counting of described media processing units, and compares with the counting thresholding: if exceeded the counting thresholding, described MP judges that described media processing units breaks down; If do not exceed the counting thresholding as yet, wait for poll timer expiry next time.
Further, if the described current media processing unit that detects breaks down, described MP interrupts the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter pass to new media processing units, start described new media processing units and replace the step that the described media processing units that breaks down continues to carry out with described counterpart terminal the media business processing, comprise: break down if detect the current media processing unit, described MP interrupts the work of the described media processing units that breaks down, choose a new media processing units, and add up the counterpart terminal that the current media processing units that breaks down is administered, carrying out media business employed parameter when handling to the multipoint controller MC described media processing units that breaks down of inquiry and the counterpart terminal of being administered thereof;
Described MC with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter return to described MP, and pass to described new media processing units by described MP;
Described MP starts described new media processing units and replaces that the described media processing units that breaks down works on and described counterpart terminal carries out proper communication.
Further, the described media processing units that breaks down and counterpart terminal employed parameter when carrying out the media business processing of being administered thereof, comprise: the local address in the H225/H245 channel and the port information of current media processing unit, address and the port information of the terminal of current media processing unit correspondence in the H225/H245 channel.
In order to address the above problem, the present invention also provides a kind of multipoint control unit, and described multipoint control unit comprises: multipoint processor MP and some media processing units; Wherein,
Described MP is used for the status message that reports by each media processing units of automatic regular polling, and the state of corresponding media processing units is detected; Break down detecting the current media processing unit, also be used to interrupt the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and its counterpart terminal of administering carry out media business when handling employed parameter pass to described new media processing units, start described new media processing units and replace the described media processing units that breaks down and continue to carry out media business and handle with described counterpart terminal;
Described media processing units is used for carrying out media business with its described counterpart terminal of administering and handles, and also is used for regularly to described MP uploaded state message.
Further, described multipoint control unit also comprises: multipoint controller MC, when media processing units broke down, the inquiry of accepting described MP was returned the described media processing units that breaks down and counterpart terminal thereof to this MP and is carried out media business employed parameter when handling.
Further, described MP also is used to set a poll timer and a counting thresholding; When described poll timer expiry, be used for the status message that each media processing units of poll reports, detect the state of corresponding media processing units, if receive the status message that the current media processing unit reports, then wait for poll timer expiry next time; If do not receive the status message that the current media processing unit reports, and its number of times of not receiving judges then that above described counting thresholding described media processing units breaks down; If do not exceed described counting thresholding, then wait for poll timer expiry next time.
In order to address the above problem, the present invention also provides a kind of video communication service system, described video communication service system, comprise: gatekeeper, the network platform, multipoint control unit, switching network and some terminals, it is characterized in that, described multipoint control unit comprises: multipoint processor MP, multipoint controller MC and some media processing units; Wherein,
Described MP is used for the status message that reports by each media processing units of automatic regular polling, and the state of corresponding media processing units is detected; Break down detecting the current media processing unit, also be used to interrupt the work of the described media processing units that breaks down, choose new media processing units, employed parameter and described parameter are passed to described new media processing units when described MC inquires that described media processing units that breaks down and counterpart terminal thereof carry out the media business processing, start described new described media processing units continuation of breaking down of media processing units replacement and described counterpart terminal and carry out the media business processing;
Described MC, when media processing units broke down, the inquiry of accepting described MP was returned the described media processing units that breaks down and counterpart terminal thereof to this MP and is carried out media business employed parameter when handling;
Described media processing units is used to accept the control of described MP, carries out media business with its described counterpart terminal of administering and handles, and also is used for regularly to described MP uploaded state message.
Further, described MP also is used to set a poll timer and a counting thresholding; When described poll timer expiry, be used for the status message that each media processing units of poll reports, detect the state of corresponding media processing units, if receive the status message that the current media processing unit reports, then wait for poll timer expiry next time; If do not receive the status message that the current media processing unit reports, and its number of times of not receiving judges then that above described counting thresholding described media processing units breaks down; If do not exceed described counting thresholding, then wait for poll timer expiry next time.Another object of the present invention provides a kind of MCU that possesses the multimedia unit backup functionality.
Beneficial effect: adopt method of the present invention, compared with prior art, after media processing units breaks down, the handled terminal of this media processing units can be backuped on the standby media processing units, need not wait for MCU calling terminal or terminal call MCU again, shorten user's wait duration, guaranteed the uninterrupted of medium, realized the seamless link of MCU side.
Description of drawings
Fig. 1 is the video communication service system that has MCU.
Fig. 2 is the method flow diagram of backup media processing unit among the MCU in the embodiment of the invention.
Fig. 3 is the flow chart of the fault detection mechanism between multipoint processor MP and the media processing units in the embodiment of the invention.
Fig. 4 is a kind of structure chart with MCU device of media processing units backup functionality in the embodiment of the invention.
Embodiment
Basic principle of the present invention is that MCU passes through each media processing units of timer poll, if find that media processing units breaks down, then the current media processing unit is backuped in the new media processing units, MCU will carry out the parameter that media business handles with terminal and pass to new media processing units, guarantee after switching to new media processing units process, not occur the pause of medium, guarantee the proper communication of MCU and terminal.
Below by an instantiation method flow of the present invention is illustrated.As shown in Figure 2, the backup method for media processing units among a kind of MCU comprises the steps:
Step S1: each media processing units of initialization;
Step S2: handle to corresponding media processing units the terminal distribution that inserts;
Each media processing units can be handled one or more terminals according to the ability of self.Each media processing units can write down the H225 of its handled terminal, and the parameter of H245 channel after the current media processing unit breaks down, need back up these parameter informations.
Step S3: media processing units is regularly to the MP of described MCU uploaded state message, and the status message that described each media processing units of MP poll reports detects the state of corresponding media processing units;
Operational failure testing mechanism between media processing units and the MP (can realize by heartbeat mechanism or keepalive mechanism in the practical application), be that media processing units breaks down, but this moment, MP thought that the state of this media processing units remains normal condition, this need set a timer, media processing units is uploaded state message (can realize by the heartbeat keep-alive message in the practical application) periodically, and the report cycle of media processing units is smaller or equal to timer duration; Work as timer expiry, MP does not receive the heartbeat keep-alive message that media processing units reports, and thinks that then this media processing units may break down; Do not surpass stipulated number if receive the heartbeat keep-alive message that this media processing units reports, can judge that then this media processing units breaks down;
The concrete operations of above-mentioned state-detection mechanism are referring to following examples and accompanying drawing 3;
Step S4: break down if detect the current media processing unit, MP promptly stops the work of this media processing units that breaks down, ordering by media processing units from the alternative pond of media processing units carries out choosing or choosing by the priority of predefined media processing units in proper order, choose a new media processing units, and add up the terminal of the current media processing units correspondence that breaks down, relevant parameter to MC current media processing units that breaks down of inquiry and counterpart terminal thereof, as the local address in the H225/H245 channel and the port of current media processing unit, opposite end address and the information such as port of the terminal of current media processing unit correspondence in the H225/H245 channel;
Step S5:MC returns to described MP with the relevant parameter that MP inquired, and passes to new media processing units by described MP;
Step S6: new media processing units starts, and replaces the media processing units that breaks down and works on.
Below in conjunction with accompanying drawing 3, describe the fault detection mechanism between multiple spot processing unit and the media processing units in detail.For convenience, be that example describes fault detection mechanism with heartbeat mechanism (keepalive mechanism), but the invention is not restricted to this.
Have keepalive mechanism between media processing units and the multiple spot processing unit, media processing units regularly reports the heartbeat keep-alive message to the MP of described MCU; MP sets the poll timer, and setting the poll timer duration is polling cycle; Polling cycle is than regularly reporting the report cycle of heartbeat keep-alive message long slightly in the media processing units; And set a counting and a counting thresholding, described counting is used to be recorded in the number of times of not receiving the heartbeat keep-alive message under the poll timer expiry state;
Step P1 when the poll timer expiry, illustrates that polling cycle arrives, execution in step P2;
Step P2 by the heartbeat keep-alive message that each media processing units of MP poll reports, detects the state of corresponding media processing units;
If receive the heartbeat keep-alive message, illustrate that corresponding media processing units operating state is normal, execution in step P3; If do not receive the heartbeat keep-alive message, illustrate that corresponding media processing units exists the possibility that breaks down, execution in step P4;
Step P3, if receive the heartbeat keep-alive message, MP will not receive the counting zero clearing of heartbeat keep-alive message, and jump to step P1, wait for poll timer expiry next time;
Step P4, if do not receive the heartbeat keep-alive message, MP will receive not that the counting of heartbeat keep-alive message adds one, and compare with the counting thresholding; If arrived the counting thresholding, illustrate that corresponding media processing units does not repeatedly send the heartbeat keep-alive message, can confirm that it breaks down execution in step P5; If do not exceed the counting thresholding as yet, can not confirm that then it necessarily breaks down, jump to step P1, wait for poll timer expiry next time;
Step P5, MP judge that corresponding media processing units breaks down, and media business is switched to the media processing units of backup handled.
Below enumerate an application example; corresponding to the ZXMVC8900 of ZTE Corporation project; use heartbeat mechanism (keepalive mechanism); wherein the ZXMVC8900 system comprises MCU, network management platform ZXMS80 and some terminals, and MCU comprises again: multipoint processor MP, multipoint controller MC and some media processing units.
Its method flow can be with reference to the flow process of figure 2, and this method may further comprise the steps:
Step 1:ZXMVC8900 system normally starts;
Each media processing units of multipoint processor MP initialization of MCU in the step 2:ZXMVC8900 system;
Step 3: network management platform ZXMS80 calling terminal A and terminal B by ZXMVC8900 project correspondence go up meeting;
The parameter of employed H225/H245 channel and port passed to this MP when the multipoint controller MC of MCU will carry out the media business processing with terminal A, B in the step 4:ZXMVC8900 system, this MP distributes to terminal A the media processing units A of MCU in the ZXMVC8900 system, and the H225/H245 channel of terminal A and the parameter of port sent to media processing units A, terminal B is distributed to the media processing units B of MCU in the ZXMVC8900 system, and the H225/H245 channel of terminal B and the parameter of port are sent to media processing units B;
In technology realized, media processing units A, B can be the two groups of dsp chips of MCU in the ZXMVC8900 system;
Step 5: media processing units A, B regularly report the heartbeat keep-alive message to this MP, and this MP poll media processing units A, B start timer simultaneously, and setting the poll time is 500ms;
Step 6: this MP detects media processing units A and breaks down, and this MP interrupts the work of the current media processing units A that breaks down;
Step 7: this MP takes out a new media processing units C from the media processing units pond;
Step 8: it is terminal A that this MP counts the current terminal that media processing units A administered that breaks down, to the H225/H245 channel of this MC inquiry terminal A and media processing units A and the parameter of port, the local address in the H225/H245 channel and the port that comprise media processing units A, terminal A address, opposite end and the information such as port in the H225/H245 channel;
Step 9: this MC returns to this MP with terminal A that this MP inquired and the relevant information of media processing units A;
Step 10: this MP passes to new media processing units C with the information that this MC replys, starting new media processing units C replaces the media processing units A that breaks down and works on, continuation and terminal A carry out proper communication, have guaranteed the seamless link of terminal MCU side like this.
Chain rupture calling party case is to detect medium to be interrupted in the prior art, and medium are relevant with network, and the time of generally detecting the medium interruption all can be long, by experiment, can know that the spent time of chain rupture calling party case is about 2-3 minute in the prior art;
And the present invention backs up the scheme of switching is to carry out the detection of device interior intermodule, and the detection poll time of employing can be very short, under the same experiment condition, can know that the scheme consumed time that the present invention backs up switching was about about 5 seconds.
Therefore as seen this time shortens greatly, and this part time is experienced and can ignore for the user among the present invention, can finish under not by the situation of user perception and switch, and realizes seamless link in the MCU side.
Below by an instantiation MCU device of the present invention being constituted again and illustrated, wherein for convenience, be that example describes for fault detection mechanism relevant portion wherein with heartbeat mechanism (keepalive mechanism), still the invention is not restricted to this.
As shown in Figure 4, be a kind of MCU device, comprise: multipoint processor MP, multipoint controller MC, some media processing units and input/output interface;
Wherein, multipoint processor MP, be used for each media processing units is carried out initialization, receive the parameter of the H225/H245 channel of the terminal that multipoint controller MC sends and port and it is transmitted to corresponding media processing units, handle to corresponding media processing units the terminal distribution that inserts, and be used for the heartbeat keep-alive message that the receiving media processing unit reports, and set timer, regularly the heartbeat keep-alive message is carried out poll, detect the state of corresponding media processing units; When detecting media processing units and break down, also be used to interrupt with the media processing units that breaks down between communicate by letter, and the ordering by media processing units carries out choosing or choosing by the priority of predefined media processing units in proper order from the alternative pond of media processing units, choose a new media processing units, add up the terminal of the current media processing units correspondence that breaks down, inquire these terminals and the H225/H245 channel of the media processing units that breaks down and the parameter of port to MC, after receiving the parameter that MC returns and with it, be transmitted to new media processing units, start new media processing units and replace the media processing units that breaks down and work on;
Multipoint controller MC, on the network management platform calling terminal after the meeting, be used for described MP and described terminal carry out media business when handling the parameter of employed H225/H245 channel and port pass to described multipoint processor MP; When media processing units broke down, media processing units and the H225/H245 channel of counterpart terminal and the parameter of port that breaks down returned in the inquiry that receives described MP to this MP;
Media processing units is controlled by multipoint processor MP, and receives the institute that described MP sends and distributes the H225/H245 channel of the terminal of coming and the parameter of port, the terminal of administrative institute's distribution; Regularly report the heartbeat keep-alive message to described MP; When the media processing units that breaks down in replacement works on, also be used to receive the media processing units that breaks down and the H225/H245 channel of counterpart terminal and the parameter of port that described MP sends;
Input/output interface, media processing units is distributed to the described media information terminal that will achieve the goal with the media information handled by described input/output interface, and receives the information that described terminal is sent.
Notice that the timer of setting among the multipoint processor MP regularly reports the duration of heartbeat keep-alive message long slightly or equal in its poll time ratio media processing units.And described MCU device is corresponding with the preceding method flow process, and concrete qualification can be referring to aforementioned schemes.
Below by an instantiation video communication service system of the present invention is constituted again and illustrated, its framework is similar to video communication service system framework in the prior art, as shown in Figure 1, this video communication service system comprises: gatekeeper, MCU, network management platform, some terminals and the Internet; Wherein, be the function of MCU with main difference of the prior art, the concrete structure of MCU elaborates before its function as shown in Figure 4, repeats no more.
Described video communication service system is corresponding with preceding method flow process and MCU device, and concrete qualification can be referring to aforementioned schemes.
Above-mentioned explanation illustrates and has described a preferred embodiment of the present invention, but as previously mentioned, be to be understood that the present invention is not limited to the disclosed form of this paper, should not regard eliminating as to other embodiment, and can be used for various other combinations, modification and environment, and can in invention contemplated scope described herein, change by the technology or the knowledge of above-mentioned instruction or association area.And change that those skilled in the art carried out and variation do not break away from the spirit and scope of the present invention, then all should be in the protection range of the appended claim of the present invention.
Claims (10)
1. the backup method of media processing units in the multipoint control unit is characterized in that, comprising:
The status message that multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling detects the state of corresponding media processing units;
If detecting the current media processing unit breaks down, described MP interrupts the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter pass to new media processing units, start described new media processing units and replace the described media processing units that breaks down and continue to carry out media business and handle with described counterpart terminal.
2. the method for claim 1, it is characterized in that, the status message that multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling, the step to the state of corresponding media processing units detects also comprises:
Described MP sets the poll timer, and described poll timer duration regularly reports the report cycle of heartbeat keep-alive message more than or equal to described media processing units; Set a counting thresholding and define a counting respectively for each media processing units, the counting of described media processing units is used to be recorded under the described poll timer expiry state does not receive that described media processing units reports the number of times of heartbeat keep-alive message.
3. method as claimed in claim 2, it is characterized in that, the status message that multipoint processor MP among the described multipoint control unit MCU reports by each media processing units among the described MCU of automatic regular polling, the step to the state of corresponding media processing units detects further comprises:
Each media processing units regularly reports the heartbeat keep-alive message to described MP;
When described poll timer expiry, the heartbeat keep-alive message that described each media processing units of MP poll reports detects the state of corresponding media processing units;
If receive the heartbeat keep-alive message that the current media processing unit reports, described MP waits for poll timer expiry next time with the counting zero clearing of described media processing units;
If do not receive the heartbeat keep-alive message that the current media processing unit reports, described MP adds one with the counting of described media processing units, and compares with the counting thresholding: if exceeded the counting thresholding, described MP judges that described media processing units breaks down; If do not exceed the counting thresholding as yet, wait for poll timer expiry next time.
4. the method for claim 1, it is characterized in that, if the described current media processing unit that detects breaks down, described MP interrupts the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter pass to new media processing units, start described new media processing units and replace the step that the described media processing units that breaks down continues to carry out with described counterpart terminal the media business processing, further comprise:
If detecting the current media processing unit breaks down, described MP interrupts the work of the described media processing units that breaks down, choose a new media processing units, and add up the counterpart terminal that the current media processing units that breaks down is administered, carrying out media business employed parameter when handling to the multipoint controller MC described media processing units that breaks down of inquiry and the counterpart terminal of being administered thereof;
Described MC with the described media processing units that breaks down and the counterpart terminal of being administered thereof carry out media business when handling employed parameter return to described MP, and pass to described new media processing units by described MP;
Described MP starts described new media processing units and replaces that the described media processing units that breaks down works on and described counterpart terminal carries out proper communication.
5. as claim 1 or 4 described methods, it is characterized in that, the described media processing units that breaks down and counterpart terminal employed parameter when carrying out the media business processing of being administered thereof, comprise: the local address in the H225/H245 channel and the port information of current media processing unit, address and the port information of the terminal of current media processing unit correspondence in the H225/H245 channel.
6. a multipoint control unit is characterized in that, described multipoint control unit comprises: multipoint processor MP and some media processing units; Wherein,
Described MP is used for the status message that reports by each media processing units of automatic regular polling, and the state of corresponding media processing units is detected; Break down detecting the current media processing unit, also be used to interrupt the work of the described media processing units that breaks down, choose new media processing units, and with the described media processing units that breaks down and its counterpart terminal of administering carry out media business when handling employed parameter pass to described new media processing units, start described new media processing units and replace the described media processing units that breaks down and continue to carry out media business and handle with described counterpart terminal;
Described media processing units is used for carrying out media business with its described counterpart terminal of administering and handles, and also is used for regularly to described MP uploaded state message.
7. multipoint control unit as claimed in claim 6 is characterized in that, described multipoint control unit also comprises:
Multipoint controller MC, when media processing units broke down, the inquiry of accepting described MP was returned the described media processing units that breaks down and counterpart terminal thereof to this MP and is carried out media business employed parameter when handling.
8. multipoint control unit as claimed in claim 6 is characterized in that, described MP also is used to set a poll timer and a counting thresholding; When described poll timer expiry, be used for the status message that each media processing units of poll reports, detect the state of corresponding media processing units, if receive the status message that the current media processing unit reports, then wait for poll timer expiry next time; If do not receive the status message that the current media processing unit reports, and its number of times of not receiving judges then that above described counting thresholding described media processing units breaks down; If do not exceed described counting thresholding, then wait for poll timer expiry next time.
9. video communication service system, comprising: gatekeeper, the network platform, multipoint control unit, switching network and some terminals is characterized in that described multipoint control unit comprises: multipoint processor MP, multipoint controller MC and some media processing units; Wherein,
Described MP is used for the status message that reports by each media processing units of automatic regular polling, and the state of corresponding media processing units is detected; Break down detecting the current media processing unit, also be used to interrupt the work of the described media processing units that breaks down, choose new media processing units, employed parameter and described parameter are passed to described new media processing units when described MC inquires that described media processing units that breaks down and counterpart terminal thereof carry out the media business processing, start described new described media processing units continuation of breaking down of media processing units replacement and described counterpart terminal and carry out the media business processing;
Described MC, when media processing units broke down, the inquiry of accepting described MP was returned the described media processing units that breaks down and counterpart terminal thereof to this MP and is carried out media business employed parameter when handling;
Described media processing units is used to accept the control of described MP, carries out media business with its described counterpart terminal of administering and handles, and also is used for regularly to described MP uploaded state message.
10. video communication service system as claimed in claim 9 is characterized in that, described MP also is used to set a poll timer and a counting thresholding; When described poll timer expiry, be used for the status message that each media processing units of poll reports, detect the state of corresponding media processing units, if receive the status message that the current media processing unit reports, then wait for poll timer expiry next time; If do not receive the status message that the current media processing unit reports, and its number of times of not receiving judges then that above described counting thresholding described media processing units breaks down; If do not exceed described counting thresholding, then wait for poll timer expiry next time.
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| CN2009101690592A CN101662645B (en) | 2009-09-17 | 2009-09-17 | Backup method for media processing unit, multipoint control unit and video communication system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163874A (en) * | 2011-12-09 | 2013-06-19 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Semiconductor device safety detection system and semiconductor device safety measuring method |
| CN103763445A (en) * | 2013-12-31 | 2014-04-30 | 浙江元亨通信技术股份有限公司 | Telephone conference system and platform selection method thereof |
| CN105808391A (en) * | 2016-04-05 | 2016-07-27 | 浪潮电子信息产业股份有限公司 | Method and device for hot replacing CPU nodes |
| WO2016177098A1 (en) * | 2015-09-09 | 2016-11-10 | 中兴通讯股份有限公司 | Conference backup method and device |
| CN106255053A (en) * | 2016-10-13 | 2016-12-21 | 四川长虹电器股份有限公司 | The determination methods of ZigBee terminal unit off-line state |
| CN108174430A (en) * | 2017-12-28 | 2018-06-15 | 浙江中智海通信科技有限公司 | Free interconnection architecture and network-building method in wireless data communication |
| CN108881805A (en) * | 2018-09-12 | 2018-11-23 | 湖北易都信息技术有限公司 | A kind of video conference integrated terminal implementation method |
| CN109274549A (en) * | 2018-09-07 | 2019-01-25 | 中国电子科技集团公司第二十八研究所 | Networking management method between a kind of blank pipe monitoring information processing system |
| CN109889760A (en) * | 2019-02-12 | 2019-06-14 | 视联动力信息技术股份有限公司 | Terminal control method and device |
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2009
- 2009-09-17 CN CN2009101690592A patent/CN101662645B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163874A (en) * | 2011-12-09 | 2013-06-19 | 北京北方微电子基地设备工艺研究中心有限责任公司 | Semiconductor device safety detection system and semiconductor device safety measuring method |
| CN103763445A (en) * | 2013-12-31 | 2014-04-30 | 浙江元亨通信技术股份有限公司 | Telephone conference system and platform selection method thereof |
| WO2016177098A1 (en) * | 2015-09-09 | 2016-11-10 | 中兴通讯股份有限公司 | Conference backup method and device |
| 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 |
| CN105808391A (en) * | 2016-04-05 | 2016-07-27 | 浪潮电子信息产业股份有限公司 | Method and device for hot replacing CPU nodes |
| CN106255053A (en) * | 2016-10-13 | 2016-12-21 | 四川长虹电器股份有限公司 | The determination methods of ZigBee terminal unit off-line state |
| CN108174430A (en) * | 2017-12-28 | 2018-06-15 | 浙江中智海通信科技有限公司 | Free interconnection architecture and network-building method in wireless data communication |
| CN109274549A (en) * | 2018-09-07 | 2019-01-25 | 中国电子科技集团公司第二十八研究所 | Networking management method between a kind of blank pipe monitoring information processing system |
| CN109274549B (en) * | 2018-09-07 | 2021-01-26 | 中国电子科技集团公司第二十八研究所 | Networking management method between air traffic control monitoring information processing systems |
| CN108881805A (en) * | 2018-09-12 | 2018-11-23 | 湖北易都信息技术有限公司 | A kind of video conference integrated terminal implementation method |
| CN109889760A (en) * | 2019-02-12 | 2019-06-14 | 视联动力信息技术股份有限公司 | Terminal control method and device |
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