CN101631204A - Method and device for following broadcast in broadcast controlling system - Google Patents
Method and device for following broadcast in broadcast controlling system Download PDFInfo
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Abstract
The invention discloses a method for following broadcast in a broadcast controlling system, which comprises the following steps: subtracting the obtained broadcast launching time from the obtained current time; obtaining an inserting point of currently-broadcasted video data needing to be currently broadcasted through calculation; sending a broadcast following command in the obtained inserting point; and realizing the broadcast of a video signal of an interruption part aiming at the currently-broadcasted video data. The invention also discloses a device for following broadcast in the broadcast controlling system; and the device comprises an obtaining unit, a calculation unit and a broadcast realization unit, wherein the calculation unit is used for subtracting the obtained broadcast launching time from the current time, obtaining the inserting point of the currently-broadcasted video data needing to be currently broadcasted through calculation and sending information of the inserting point to the broadcast realization unit so as to realize the broadcast of the video signal of the interruption part. The method and the device are adopted and can broadcast the interrupted video signal in time when a single control and broadcast system having fault in the system repairs the fault and is recovered to a normal working state.
Description
Technical field
The present invention relates to broadcast the broadcast technology in the control system, relate in particular to a kind of video server of broadcasting control system in broadcasting with broadcasting method and device.
Background technology
At present, the broadcasting control system that adopts when broadcasting video data of TV station generally includes: video server and broadcast control unit.Wherein, video server is generally the video server of TV station, its canned data comprises: a plurality of video datas to be broadcasted, also can be called a plurality of materials to be broadcasted, video server be used for will be to be broadcasted under the control of broadcasting control unit video data broadcast.Broadcast that canned data comprises in the control unit: wait to broadcast video data the time of starting broadcasting, wait to broadcast the catalogue listing of video data.Here, this waits to broadcast the sign that storage in the catalogue listing of video data remains to be broadcasted video data, and video data to be broadcasted in this sign of waiting to broadcast video data and the video server is corresponding.And it is tactic according to the broadcast that sets in advance waiting to broadcast the sign of waiting to broadcast video data in the catalogue listing of video data, and as seen this waits that the catalogue listing that broadcasts video data also can be described as the broadcast task list of waiting to broadcast video data.So, based on broadcasting the above-mentioned information of storing in the control unit, broadcast the decoding channels of control unit energy control of video server, the video data in the broadcast video server.And can correspond to the time of starting broadcasting the broadcast of video data in the control of video server.
Usually in order to ensure broadcasting safety, TV station generally adopts safing back mechanism in the broadcasting control system.Be illustrated in figure 1 as the existing broadcasting control system that possesses the carrying out safety backup measure, among Fig. 1, this system comprises active and standby two cover control and broadcast systems.Wherein, master control and broadcast system comprise that the main broadcaster goes out control unit 11 and main video server 12; Being equipped with control and broadcast system comprises and broadcasts control unit 21 fully and be equipped with video server 22.And, switch via signal switching apparatus 31 and the back output of decoding by the main video signal of master control and the output of broadcast system with by the vision signal fully that is equipped with the output of control and broadcast system.Specifically, this system broadcasts control unit with two, and the decoding channels of controlling two video servers respectively broadcasts video data.Promptly go out the main video server 12 of control unit 11 controls with the main broadcaster; Be equipped with video server 22 with broadcasting control unit 21 controls fully.Two are broadcasted control unit main and standby relation each other, and the main broadcaster goes out control unit 11 and broadcasts fully between the control unit 21 by the network exchange data, and the two institute's canned data is consistent, such as the catalogue listing unanimity of waiting to broadcast video data of the two storage.Two video servers are main and standby relation each other also, and main video server 12 and be equipped with in the video server 22 and generally store same video data.Usually, the outwards output of main video signal decoding back that receives from main video server 12 the most at last by signal switching apparatus 31.When signal switching apparatus 31 is receiving under the out of order situation of main video signal, switch to receive to be equipped with vision signal, with the outwards output of the decoding of vision signal fully back that receives.Here, it is to be noted that broadcasting control unit generally also supports to switch,, broadcast control unit 21 fully and can obtain control, go out the broadcast of control unit control of video data as the main broadcaster such as going out the main broadcaster under the control unit 11 out of order situations.The switching of the switching of active/standby vision signal and active/standby broadcast control unit generally is synchronous.
In system, under active and standby two cover controls and the system of the broadcast normal operating conditions,, ensured fail safe effectively owing to be that two on all four broadcasts are carried out synchronously.But under the situation that a broadcast control unit breaks down, will be to broadcast control unit by another one independently to bear the task that the control of video data are broadcasted, that is to say that the broadcast of this moment has lost back mechanism, so, the time that loses back mechanism is long more, and the risk of broadcast is also just big more.
Specifically, because it is tactic according to the broadcast that sets in advance waiting to broadcast the sign of waiting to broadcast video data in the video data catalogue listing, therefore broadcasting control unit is the arrangement of waiting to broadcast the video data catalogue listing according to this, and the decoding channels of control of video server carries out that video data broadcasts.Be illustrated in figure 3 as one and wait to broadcast the video data catalogue listing, corresponding to the broadcast that sets in advance order, this wait to broadcast the video data directory table stores and have the sign of the sign of first video data, second video data ..., and the sign of N video data.And the main broadcaster goes out control unit and broadcasts fully the identical video data catalogue listing of waiting to broadcast in the control unit.So, at a broadcast of broadcasting under the situation that control unit breaks down, for instance, current TV station desire is broadcasted first video data, broadcast control unit fully according to the sign of waiting to broadcast first video data in the video data catalogue listing, and first video data start broadcasting the time broadcast of corresponding first video data in the control of video server.Break down if broadcast control unit fully or be equipped with decoding channels, must cause first video data to fail to broadcast, then have only this moment the main broadcaster to go out the broadcast that control unit control main decoder passage is finished first video data.That is to say that current have only a main video signal to broadcast, and do not have carrying out safety backup mechanism.If after first video data broadcasts a period of time, that breaks down broadcasts control unit fully or is equipped with the decoding channels fault restoration, and returns to normal operating conditions, need wait until that being equipped with vision signal when broadcasting next bar second video data could recover to broadcast.This be because, adopt prior art, broadcast control unit and can only be implemented in the time of starting broadcasting of waiting to broadcast video data and decoding channels is sent broadcast order.Hence one can see that, starting broadcasting the time of first video data, broadcast control unit and can send broadcast order according to the sign of waiting to broadcast first video data in the video data catalogue listing to first video data, thus the broadcast of corresponding first video data in the control of video server.And in case spent time of starting broadcasting of first video data, broadcast control unit and just can not send broadcast order once more, thereby the broadcast of uncontrollable interruption backup partial video signal at first video data to first video data.If the broadcast time of first video data is long, then the vision signal of being broadcasted in the time period that first video data continues to broadcast does not all have back mechanism, has risk.
Summary of the invention
In view of this, main purpose of the present invention be to provide a kind of broadcast in the control system with broadcasting method, single control of breaking down in system and the system of broadcast fault restoration, and when returning to normal operating conditions can be in time with the vision signal broadcasts of interrupting.
Another object of the present invention is to provide a kind of broadcast in the control system with broadcasting device, single control of breaking down in system and the system of broadcast fault restoration, and when returning to normal operating conditions can be in time with the vision signal broadcasts of interrupting.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of broadcasting method of following of broadcasting in the control system, this method may further comprise the steps:
A, obtain video data pairing current time in playing process that fault get rid of to be recovered the current broadcast in back, and the starting broadcasting the time of the video data of described current broadcast;
B, the described current time that will obtain deduct obtain described and start broadcasting the time, calculate the current insertion point that should broadcast of video data of described current broadcast; Send with broadcasting order in the described insertion point that obtains, realization is at the broadcast of the interrupt unit vision signal of the video data of described current broadcast.
Wherein, among the step B, the described current insertion point that should broadcast of video data that calculates current broadcast further is: after the described current time that will obtain deducts the described time of starting broadcasting of obtaining, add up again the upward time of delay of system, obtain the current insertion point that should broadcast of video data of described current broadcast.
Wherein, main broadcaster in described system has under the situation that there is fault in control unit, also comprise before the steps A: broadcast control unit fully and detect described main broadcaster and have control unit and have fault, go out control unit and the handover mechanism that broadcasts fully between the control unit switches based on main broadcaster described in the system, the current anchor that is obtained by switching goes out the broadcast that control unit is finished the video data of described current broadcast; In the playing process of the video data of described current broadcast, by switching obtain current broadcast the control unit fault fully and get rid of to recover after, enter and carry out described steps A.
Wherein, broadcasting fully under the situation that there is fault in control unit in described system, in the playing process of the video data of described current broadcast, described broadcast fully the control unit fault get rid of recover after, enter and carry out described steps A.
Wherein, main broadcaster in described system has control unit and broadcasts fully under the situation that all there is fault in control unit, in the playing process of the video data of described current broadcast, described main broadcaster enters and carries out described steps A after haveing control unit and broadcasting control unit fault eliminating recovery fully.
Wherein, under the situation of system hardware fault, select to trigger, enter and carry out described steps A with broadcasting operation.
A kind of broadcast in the control system with broadcasting device, this device comprises: acquiring unit, computing unit and with broadcasting the realization unit; Wherein,
Acquiring unit, the video data that is used for obtaining current broadcast be in the pairing current time of playing process, and the starting broadcasting the time of the video data of described current broadcast, and the described current time that will obtain and the described time of starting broadcasting send to described computing unit;
Computing unit is used for that the described current time is deducted obtain described and starts broadcasting the time, calculates the current insertion point that should broadcast of video data of described current broadcast, and sends to the information of described insertion point described with broadcasting the realization unit;
With broadcasting the realization unit, after being used to receive the information of described insertion point, send with broadcasting order in the described insertion point that obtains, realization is at the broadcast of the interrupt unit vision signal of the video data of described current broadcast.
Wherein, described computing unit after being further used for the described current time deducted the described time of starting broadcasting of obtaining, the time of delay of the system of going up that adds up again, calculates the current insertion point that should broadcast of video data of described current broadcast.
The present invention after the fault recovery of system, obtains video data pairing current time in playing process that fault get rid of to be recovered the current broadcast in back in the playing process of the video data of current broadcast, and the starting broadcasting the time of the video data of current broadcast; The described current time of obtaining is deducted obtain described start broadcasting the time, calculate the current insertion point that should broadcast of video data of current broadcast; Send with broadcasting order in this insertion point, realization is at the broadcast of the interrupt unit vision signal of the video data of current broadcast.
Adopt the present invention, single control of in system, breaking down and the system of broadcast fault restoration, and when returning to normal operating conditions, can in time recover back mechanism, and soon the vision signal of interrupting be broadcasted.
Description of drawings
Fig. 1 is the composition structural representation of existing broadcasting control system;
Fig. 2 is the realization flow schematic diagram of the inventive method principle;
Fig. 3 is a composition schematic diagram of waiting to broadcast video data catalogue listing one example;
Fig. 4 is the broadcast time section schematic diagram of the first video data correspondence.
Embodiment
Core concept of the present invention is: in the playing process of the video data of current broadcast, after the fault recovery of system, calculate the current insertion point that should broadcast of video data of current broadcast, and send with broadcasting order, realization is at the broadcast of the interrupt unit vision signal of the video data of current broadcast.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
As shown in Figure 2, a kind of broadcasting method of following of broadcasting in the control system, this method may further comprise the steps:
Here,, that is to say that the point that current video data should be broadcasted from corresponding current video data of described current time is that the point that fault is got rid of after recovering begins to broadcast at the insertion point.For instance, the described current time is 8: 10, the described time of starting broadcasting is 8 points, the two subtraction calculations obtains 10 minutes, so, be the current insertion point that should broadcast of video data of current broadcast with the 10th minute of current video data, and begin to broadcast, finish until current video data from the 10th minute of current video data.
Here it is pointed out that the present invention adopts the broadcast of the interrupt unit vision signal of the video data of current broadcast in step 101～step 103 realization system to have two kinds of ranges of application.First kind of range of application is that system takes the system of back mechanism, that is to say at the system that comprises the active and standby two cover controls and the system of broadcast, the situation that has active and standby two-path video signal Synchronization to broadcast, work as the system failure so, when causing that wherein one tunnel vision signal can not be broadcasted synchronously, adopt the present invention, the single control that can in system, break down and the system of broadcast fault restoration, and when returning to normal operating conditions, in time recover back mechanism, and will interrupt the vision signal broadcast of backup soon.And, because the main broadcaster in the system goes out control unit and broadcasts control unit fully and can switch, therefore do not exist the main broadcaster on the complete meaning to go out control unit or broadcast control unit fully.Just the current state of reference system comes clear and definite main broadcaster to go out control unit or broadcast control unit fully.That is to say, active and standby two-path video signal in fact all is synchronous broadcast, when since fault effects such as software fault or hardware fault, cause wherein one tunnel vision signal such as main video signal or be equipped with vision signal and do not broadcast synchronously, after the fault recovery, adopt the present invention can make the signal that interrupts broadcasting synchronously recover fast to broadcast so.
Second kind of range of application is that system does not take the system of back mechanism, that is to say at the system that the cover control and the system of broadcast are only arranged, work as the system failure so, when causing vision signal not broadcast, adopt the present invention, this control that can in system, break down and broadcast the system fault restoration, and when returning to normal operating conditions, will interrupt the vision signal broadcast of broadcasting soon.
Method embodiment one is: broadcast the video data catalogue listing in conjunction with shown in Figure 3 waiting, when broadcasting first video data, because the scheduling problem of video data, be equipped with the decoding channels place and be equipped with and do not store first video data in the video server, and starting broadcasting before nobody's this problem of discovery or do not do respective handling.So, when first video data starts broadcasting, the video server fully that is equipped with the decoding channels place can't broadcast first video data.This moment, system operators was found this problem, and rapidly first video data was moved to the corresponding video server that is equipped with.If employing prior art, then sent owing to broadcasting the broadcast order of control unit fully at first video data, to can not send once more and broadcast order, be equipped with decoding channels and will wait until that next bar second video data Shi Caihui that starts broadcasting recovers broadcasting signal, cause in the time period that first video data continues to broadcast, all be to adopt single control and broadcast system to realize broadcasting, do not have back mechanism, have risk.Under the in-problem situation of the scheduling of this video data, in the present embodiment, in conjunction with the broadcast time section schematic diagram and Fig. 1 of the first video data correspondence shown in Figure 4, may further comprise the steps in the broadcasting control system with broadcasting method:
Step 201, broadcast control unit inquiry self canned data fully, obtain starting broadcasting the time of first video data, and the problem that the scheduling of video data exists is got rid of back first video data pairing current time in playing process.
Step 202, broadcast the arithmetic unit (Fig. 1 does not show) of control unit operation self fully, the described current time of obtaining is deducted obtain described start broadcasting the time, calculate the current insertion point that should broadcast of first video data; In the described insertion point that obtains, send with broadcasting order to the video server that is equipped with that is equipped with the decoding channels place, promptly broadcast order synchronously, realize broadcast at the interruption backup partial video signal of first video data.
Here, in the step 202, obtaining the current insertion point that should broadcast of first video data further is: the arithmetic unit (Fig. 1 does not show) that broadcasts control unit operation self fully, after the described current time of obtaining deducted the described time of starting broadcasting of obtaining, the time of delay of this system of going up that adds up again, obtain the current insertion point that should broadcast of first video data.Wherein, comprise the time of delay of this system: broadcast the operation time of control unit self arithmetic unit fully and with broadcasting the time of delay that order sends.And, the A among Fig. 4 be used to identify the time of starting broadcasting the broadcast point of corresponding first video data, B be used to identify play the concluding time the broadcast point of corresponding first video data; A1 is used to identify the current insertion point that should broadcast of first video data; After A1 ' is used to identify the delayed impact of considering the system delay time, the current insertion point that should broadcast of first video data.
That is to say, from insertion point A1, to pairing during this period of time from insertion point A1 to the broadcast point B that plays corresponding first video data of concluding time institute, when sending broadcast and order, also need to further contemplate the time of delay of this system at the interruption backup partial video signal of first video data.At the time of delay of system, for instance, broadcast control unit self arithmetic unit fully and begin computing to broadcasting the control unit transmission fully with broadcasting order, need 40 milliseconds operation time; Receive with broadcasting order and be equipped with video server to interruption backup partial video signal broadcast at first video data, need 400 milliseconds time of delay, be 440 milliseconds the time of delay of system so, the insertion point A1 ' of time of delay that promptly considers system behind former insertion point A1 440 milliseconds.Like this, single control of in system, breaking down and the system of broadcast fault restoration, and when returning to normal operating conditions, just can be by the insertion point in the video data playing process of seeking current broadcast, and send with broadcasting order, the video data that the current interruption of recovery is backed up in the short time also broadcasts, thus the broadcast that guarantees video data has back mechanism, the broadcast that makes active and standby control and broadcast system is carried out synchronously, fails the broadcast risk of backup in time thereby reduce.
Here it is pointed out that we are divided into two classes to the system failure according to the processing mode difference to the system failure.First kind situation is that system broadcasts software fault, comprise since broadcast software that software place computer glitch causes can't operating position, have the control unit fault such as the main broadcaster; The second class situation is that the non-broadcast software fault of system is the system hardware fault, comprises video server fault, control circuit fault, the hardware device fault beyond any software such as power failure.Below we respectively according to this two classes situation, at the elaboration of giving an example of the processing mode behind the system failure recovery.
At first kind situation, comprise three kinds of processing modes.First kind of processing mode, the main broadcaster in system has under the situation that there is fault in control unit, and the handling process that fault is got rid of after recovering is identical with step 201～step 202 of method embodiment one, comprises step 301～step 302.Difference only is also to comprise before the step 301: broadcast control unit fully and detect the main broadcaster and have control unit and have fault, go out control unit and broadcast handover mechanism between the control unit fully based on main broadcaster in the system, carry out the switching that the main broadcaster goes out control unit and broadcasts control unit fully, and will broadcast control unit fully and switch to current main broadcaster and go out control unit; The main broadcaster is gone out control unit switch to the current control unit that broadcasts fully.That is to say, at this moment, current main broadcaster goes out the broadcast that control unit is finished the video data of current broadcast, the control unit that broadcasts fully before is promptly taken over control and is switched to the main broadcaster and go out control unit after switching, and will be by broadcasting fully being equipped with vision signal and switching to final output of control unit control before this.Here, the video data of current broadcast is first video data, so in the playing process of first video data, current broadcast fully the control unit fault get rid of recover after, execution in step 301～step 302, promptly under the current control of broadcasting control unit fully, seek the current insertion point that should broadcast of first video data and send to follow and broadcast order, to realize broadcast at the interruption backup partial video signal of first video data.
Second kind of processing mode, broadcasting fully under the situation that there is fault in control unit in system, it is identical with step 201～step 202 of method embodiment one to broadcast the handling process that the control unit fault gets rid of after recovering fully, comprises step 401～step 402.For instance, the video data of current broadcast is first video data, broadcasts control unit fully and breaks down.If in the playing process of first video data, after broadcasting control unit fault eliminating recovery fully, execution in step 401～step 402, promptly under the control of broadcasting control unit fully, seek the current insertion point that should broadcast of first video data and send to follow and broadcast order, to realize broadcast at the interruption backup partial video signal of first video data.
The third processing mode, main broadcaster in system has control unit and broadcasts fully under the situation that all there is fault in control unit, handling process after the main broadcaster has control unit or broadcasts control unit fault eliminating recovery fully and step 201～step 202 of method embodiment one are similar, comprise step 501～step 502.So difference is only going out control unit the main broadcaster, still broadcast control unit control execution in step 501～step 502 down fully.For instance, the video data of current broadcast is first video data, and the main broadcaster goes out control unit and broadcasts control unit fully and break down.If in the playing process of first video data, after broadcasting control unit fault eliminating recovery fully, execution in step 501～step 502, promptly under the control of broadcasting control unit fully, seek the current insertion point that should broadcast of first video data and send to follow and broadcast order, to realize broadcast at the interruption backup partial video signal of first video data.And, if in the playing process of first video data, after the main broadcaster has control unit fault eliminating recovery, same execution in step 501～step 502, promptly go out under the control of control unit the main broadcaster, seek the current insertion point that should broadcast of first video data and send to follow and broadcast order, to realize broadcast at the interruption backup partial video signal of first video data.
At the second class situation, for instance, when the system hardware fault is the situation that is equipped with video server decoding channels fault, the broadcast meeting that is equipped with vision signal is so interrupted at once.For instance, the video data of current broadcast is first video data, if in the playing process of first video data, after being equipped with the fault eliminating recovery of video server decoding channels, can manually select and trigger with broadcasting operation, first kind of processing mode with the idiographic flow process of broadcasting operation and first kind situation is similar, also be under the current control of broadcasting control unit fully, seek the current insertion point that should broadcast of first video data and send to follow and broadcast order, to realize broadcast at the interruption backup partial video signal of first video data.
A kind of broadcast in the control system with broadcasting device, this device comprises: acquiring unit, computing unit and with broadcasting the realization unit.Wherein, acquiring unit, be used for obtaining fault get rid of recover the current broadcast in back video data in the pairing current time of playing process, and the starting broadcasting the time of the video data of current broadcast, and the described current time that will obtain and the described time of starting broadcasting send to computing unit.Computing unit is used for that the described current time is deducted obtain described and starts broadcasting the time, calculates the current insertion point that should broadcast of video data of current broadcast, and the information of described insertion point is sent to broadcasting the realization unit.With broadcasting the realization unit, after being used to receive the information of described insertion point, send with broadcasting order in the described insertion point that obtains, realization is at the broadcast of the interrupt unit vision signal of the video data of current broadcast.
Here, computing unit after being further used for the described current time deducted the described time of starting broadcasting of obtaining, the time of delay of the system of going up that adds up again, calculates the current insertion point that should broadcast of video data of current broadcast.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (8)
1, a kind of broadcasting method of following of broadcasting in the control system is characterized in that this method may further comprise the steps:
A, obtain video data pairing current time in playing process that fault get rid of to be recovered the current broadcast in back, and the starting broadcasting the time of the video data of described current broadcast;
B, the described current time that will obtain deduct obtain described and start broadcasting the time, calculate the current insertion point that should broadcast of video data of described current broadcast; Send with broadcasting order in the described insertion point that obtains, realization is at the broadcast of the interrupt unit vision signal of the video data of described current broadcast.
2, method according to claim 1, it is characterized in that, among the step B, the described current insertion point that should broadcast of video data that calculates current broadcast further is: after the described current time that will obtain deducts the described time of starting broadcasting of obtaining, add up again the upward time of delay of system, obtain the current insertion point that should broadcast of video data of described current broadcast.
3, method according to claim 1 and 2, it is characterized in that, main broadcaster in described system has under the situation that there is fault in control unit, also comprise before the steps A: broadcast control unit fully and detect described main broadcaster and have control unit and have fault, go out control unit and the handover mechanism that broadcasts fully between the control unit switches based on main broadcaster described in the system, the current anchor that is obtained by switching goes out the broadcast that control unit is finished the video data of described current broadcast; In the playing process of the video data of described current broadcast, by switching obtain current broadcast the control unit fault fully and get rid of to recover after, enter and carry out described steps A.
4, method according to claim 1 and 2, it is characterized in that broadcasting fully under the situation that there is fault in control unit, in the playing process of the video data of described current broadcast in described system, described broadcast the control unit fault fully and get rid of to recover after, enter and carry out described steps A.
5, method according to claim 1 and 2, it is characterized in that, main broadcaster in described system has control unit and broadcasts fully under the situation that all there is fault in control unit, in the playing process of the video data of described current broadcast, described main broadcaster enters and carries out described steps A after haveing control unit and broadcasting control unit fault eliminating recovery fully.
6, method according to claim 1 and 2 is characterized in that, under the situation of system hardware fault, selects to trigger with broadcasting operation, enters and carry out described steps A.
7, a kind of broadcast in the control system with broadcasting device, it is characterized in that this device comprises: acquiring unit, computing unit and with broadcasting the realization unit; Wherein,
Acquiring unit, the video data that is used for obtaining current broadcast be in the pairing current time of playing process, and the starting broadcasting the time of the video data of described current broadcast, and the described current time that will obtain and the described time of starting broadcasting send to described computing unit;
Computing unit is used for that the described current time is deducted obtain described and starts broadcasting the time, calculates the current insertion point that should broadcast of video data of described current broadcast, and sends to the information of described insertion point described with broadcasting the realization unit;
With broadcasting the realization unit, after being used to receive the information of described insertion point, send with broadcasting order in the described insertion point that obtains, realization is at the broadcast of the interrupt unit vision signal of the video data of described current broadcast.
8, device according to claim 7, it is characterized in that described computing unit is after being further used for the described current time deducted the described time of starting broadcasting of obtaining, add up again the upward time of delay of system, calculate the current insertion point that should broadcast of video data of described current broadcast.
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| CN102510488A (en) * | 2011-11-04 | 2012-06-20 | 北京播思软件技术有限公司 | Method and device for synchronizing video and audio by utilizing broadcasting characteristics |
| CN103873881A (en) * | 2012-12-13 | 2014-06-18 | 上海文广科技（集团）有限公司 | Radio and television play backup system |
| CN105007505A (en) * | 2015-07-29 | 2015-10-28 | 无锡天脉聚源传媒科技有限公司 | Video broadcasting method and device |
| CN107734390A (en) * | 2017-10-27 | 2018-02-23 | 广州酷狗计算机科技有限公司 | Live broadcasting method, device and storage medium |
| CN108900877A (en) * | 2018-07-16 | 2018-11-27 | 广州辉群智能科技有限公司 | Control the method and service equipment of playing audio/video playing audio-video document |
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| CN100388218C (en) * | 2002-06-27 | 2008-05-14 | 中兴通讯股份有限公司 | Method for realizing backup between servers |
| CN1882077A (en) * | 2005-06-14 | 2006-12-20 | 英保达股份有限公司 | Broadcast program channel monitoring system and method |
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| CN102510488A (en) * | 2011-11-04 | 2012-06-20 | 北京播思软件技术有限公司 | Method and device for synchronizing video and audio by utilizing broadcasting characteristics |
| CN102510488B (en) * | 2011-11-04 | 2015-11-11 | 播思通讯技术（北京）有限公司 | A kind of utilize broadcast characteristic to carry out audio-visual synchronization method and device |
| CN103873881A (en) * | 2012-12-13 | 2014-06-18 | 上海文广科技（集团）有限公司 | Radio and television play backup system |
| CN103873881B (en) * | 2012-12-13 | 2017-08-22 | 上海文广科技（集团）有限公司 | A kind of radio and television broadcast standby system |
| CN105007505A (en) * | 2015-07-29 | 2015-10-28 | 无锡天脉聚源传媒科技有限公司 | Video broadcasting method and device |
| CN107734390A (en) * | 2017-10-27 | 2018-02-23 | 广州酷狗计算机科技有限公司 | Live broadcasting method, device and storage medium |
| CN108900877A (en) * | 2018-07-16 | 2018-11-27 | 广州辉群智能科技有限公司 | Control the method and service equipment of playing audio/video playing audio-video document |
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| CN101631204B (en) | 2012-10-31 |
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