CN104064201B - Data synchronization method and system - Google Patents
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- CN104064201B CN104064201B CN201410263732.XA CN201410263732A CN104064201B CN 104064201 B CN104064201 B CN 104064201B CN 201410263732 A CN201410263732 A CN 201410263732A CN 104064201 B CN104064201 B CN 104064201B
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Abstract
The invention discloses a data synchronization method and system. The method includes the steps of detecting an operation event conducted by a user on playing data of a playing end, obtaining first state information of the current playing state of the playing data if the operation event is detected, obtaining second state information of the current playing state of a playing list of a control end, generating a synchronization instruction corresponding to the operation event if the first state information and the second state information are not consistent, sending the synchronization instruction to the control end, and conducting corresponding synchronization operation on the playing list through the control end according to the synchronization instruction. When the method and the system are implemented, data of the control end and data of the playing end can be kept synchronous.
Description
Technical field
The present invention relates to field of computer technology, more particularly to a kind of method of data synchronization and system.
Background technology
It is also more next to the technology that remote controlled device is controlled by communication medium with the development of computer technology
It is more ripe.Control technology common at present is to perform corresponding control operation by the playlist to control end, and control is played
Corresponding played data is played at end, and performs corresponding play operation to played data.
But, due to additional operations of the user to the broadcasting content at broadcasting end, easily there is the broadcasting for playing end and control end
The nonsynchronous problem of content.
The content of the invention
Based on this, it is necessary in for above-mentioned control technology, easily there is broadcasting end asynchronous with the broadcasting content of control end
Problem, there is provided a kind of method of data synchronization and system.
A kind of method of data synchronization, comprises the following steps：
Receive the request that control end downloads the thumbnail of played data；
From the thumbnail for playing the end acquisition played data, thumbnail list is generated；
Show the thumbnail list as playlist in the control end；
The control instruction that the control end is generated is obtained, is broadcast to described according to the control instruction with controlling the broadcasting end
Putting data carries out corresponding control operation；
Action Events of the detection user to the played data at the broadcasting end；
If detecting the Action Events, the first state information of the current play status of the played data is obtained；
Obtain the second status information of the current play status of the playlist of the control end；
If the first state information is inconsistent with second status information, generate corresponding with the Action Events
The synchronic command；
The synchronic command is sent to the control end, makes the control end according to the synchronic command to the played column
Table carries out corresponding simultaneously operating.
A kind of data synchronous system, including：
Breviary module, is used for：
Receive the request that control end downloads the thumbnail of played data；
From the thumbnail for playing the end acquisition played data, thumbnail list is generated；
Show the thumbnail list as playlist in the control end；
Control module, for obtaining the control instruction that the control end is generated, to control the broadcasting end according to the control
System instruction carries out corresponding control operation to the played data；
Detection module, for detecting Action Events of the user to the played data at the broadcasting end；
Block of state, for when the Action Events are detected, obtaining the current play status of the played data
First state information；
Acquisition module, for obtaining the second state letter of the current play status of the playlist of the control end
Breath；
Instruction module, for when the first state information is inconsistent with second status information, generate with it is described
The corresponding synchronic command of Action Events；
Synchronization module, for sending the synchronic command to the control end, makes the control end be referred to according to the synchronization
Order carries out corresponding simultaneously operating to the playlist.
Above-mentioned method of data synchronization and system, if detecting the Action Events, obtain currently broadcasting for the played data
The second status information of the current play status of the playlist of the first state information and control end of state is put, if described first
Status information is inconsistent with second status information, then generate the synchronic command corresponding with the Action Events, and to
The control end sends the synchronic command, the control end is carried out accordingly to the playlist according to the synchronic command
Simultaneously operating, the playlist of control end can be made synchronous with the played data holding for playing end.
Description of the drawings
Fig. 1 is the schematic flow sheet of method of data synchronization first embodiment of the present invention；
Fig. 2 is the schematic flow sheet of method of data synchronization second embodiment of the present invention；
Fig. 3 is the schematic flow sheet of the embodiment of method of data synchronization of the present invention 3rd；
Fig. 4 is the structural representation of data synchronous system first embodiment of the present invention；
Fig. 5 is the structural representation of data synchronous system second embodiment of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Fig. 1 is referred to, Fig. 1 is the schematic flow sheet of the method for data synchronization first embodiment of the present invention.
The method of data synchronization of present embodiment is comprised the following steps：
Step S101, detects user to playing the Action Events of the played data at end.
Step S102, if detecting the Action Events, obtains the first shape of the current play status of the played data
State information.
Step S103, obtains the second status information of the current play status of the playlist of control end.
Step S104, if the first state information is inconsistent with second status information, generates and the operation
The corresponding synchronic command of event.
Step S105, to the control end synchronic command is sent, and makes the control end according to the synchronic command pair
The playlist carries out corresponding simultaneously operating.
Present embodiment, obtains first state information and the broadcasting of control end of the current play status of the played data
Second status information of the current play status of list, if the first state information is inconsistent with second status information,
The synchronic command corresponding with the Action Events is then generated, and the synchronic command is sent to the control end, made described
Control end carries out corresponding simultaneously operating according to the synchronic command to the playlist, can make the playlist of control end with
The played data for playing end keeps synchronous.
Wherein, for step S101, the played data is preferably PowerPoint, can also be used for those skilled in the art
Other played datas, such as word document, PDF (Portable Document Format) file.The broadcasting end can
Play for big well known desktop computer, notebook, personal digital assistant, smart phone, broadcasting end computer, portable media
The similar devices such as device, Set Top Box.
Preferably, the Action Events include the page turn over operation of the PowerPoint, annotation operation and exit in operation extremely
Few one kind operates corresponding Action Events.Also include that the customary operation to other played datas is corresponding in other embodiments
Action Events.
Further, played data of the user to the broadcasting end is detected by playing the playout software of the played data
Action Events detection.If detecting user (to play the trigger event of the played data as described in user's finger is double-clicked
The viewing area that data are located, switching shows the page), or detect user's broadcasting to described by trigger button or key-press input
The operational order that data are operated, or user are put by rocking grasping to the played data for the broadcasting end triggering
The operational order of work, can determine that the Action Events for detecting user to the played data at the broadcasting end.
In one embodiment, detect user to play end played data Action Events the step of before, also include
Following steps：
The control instruction that the control end is generated is obtained, is broadcast to described according to the control instruction with controlling the broadcasting end
Putting data carries out corresponding control operation.
In the present embodiment, the control operation at response control end, is accordingly controlled end is played to corresponding played data
System operation, it is synchronous with control end to ensure the played data for playing end.
Preferably, the control instruction includes open command, out code, cuts the operational orders such as page instruction, annotation instruction.
Further, can be default by performing to default press key equipment, touch button, viewing area or control terminal
Trigger action, sends corresponding operational order.
For step S102, the first state information includes the mark of the currently playing played data of playback terminal (such as
The page number or progress msg), insert the information in currently playing played data and delete from currently playing played data
Information.Such as：The mark that may include the current page of the PowerPoint and/or the current page for being added on the PowerPoint
In endorsement information.
Preferably, can pass through to play end for playing the playout software of the played data (such as Microsoft office
Powerpoint programs), monitor the current play status (currently displaying number of pages, newly-increased data etc.) of the played data.
In one embodiment, the step of first state information of the current play status for obtaining the played data, includes
Following steps：
When detecting the Action Events, triggering the broadcasting end is used to play the playout software of the played data, with
Obtain the first state information of the current play status of the played data.
By default state interface, the first state information that the broadcasting end obtains is received.
The present embodiment, by playout software can quick obtaining played data playback terminal broadcast state.
For step S103, the playlist is corresponding with the played data, for identifying the played data.Can be
The list of the thumbnail composition of the played data.The control end can be big well known desktop computer, notebook, individual number
The similar devices such as word assistant, smart phone.
Preferably, second status information includes currently playing played column of the playlist in the control end
The mark (such as the thumbnail page number or progress msg) of table, insert the information in currently playing playlist and broadcast from currently
The information deleted in the playlist put.
Further, the newest control instruction that can be sent according to control end, it is determined that broadcasting corresponding with the control instruction
The current play status of list, generate second status information.Also directly can obtain the played column from the control terminal
The current play status of table, generate second status information.
For step S104, the synchronic command is used to make the playlist in the broadcast state of the control end and institute
State broadcast state of the played data at the broadcasting end consistent.Such as：Playing progress rate is identical, data that are showing are identical.
In one embodiment, if the first state information is inconsistent with second status information, generate and institute
The step of stating the Action Events corresponding synchronic command comprises the following steps：
Whether the comparison first state information is identical with second status information.
If it is different, then judging that the first state information is inconsistent with second status information, first shape is generated
Distinguishing state information between state information and second status information.
According to the distinguishing state information and the default peration data for adjusting the broadcast state of the playlist,
The peration data for the playlist to be adjusted to the first state information from second status information is obtained, is generated
The synchronic command.
The present embodiment, obtains for the playlist to be adjusted to into the first state letter from second status information
The peration data of breath, generates the synchronic command, can be adjusted to the playlist of control end synchronous with the played data.
As user carries out formfeed operation, currently playing number of pages and the control end of played data to the played data for playing end
Broadcasting number of pages difference (distinguishing state information) of playlist, can generate the synchronic command for formfeed, make control end according to same
Step instruction carries out formfeed operation to playlist, and the number of pages that playlist is played is identical with the number of pages that played data is played.
In other embodiments, can also pass through the usual other technologies means of those skilled in the art and generate the synchronization
Instruction.
In one embodiment, the Action Events of the played data as user to playing end are in the PowerPoint for playing end
During middle addition annotation, if the first state information is inconsistent with second status information, generate and the Action Events
The step of corresponding synchronic command, comprises the following steps：
The annotation data included according to the first state information and annotation positional information, generation includes described batch
The annotation instruction (synchronic command) of note data and the annotation positional information.
For step S105, according to the synchronic command, control end can be adjusted to the playlist and the broadcasting
The consistent broadcast state of data.
In one embodiment, the Action Events of the played data as user to playing end are in the PowerPoint for playing end
During middle addition annotation, the synchronic command is sent to the control end, make the control end according to the synchronic command to described
The step of playlist carries out corresponding simultaneously operating comprises the following steps：
Annotation position and annotation data are obtained from the synchronic command.
According to the resolution of the resolution of the display screen at the broadcasting end and the display screen of the control end, to the annotation
Changed position.
According to the annotation position after conversion, in the correspondence position of the playlist annotation data is annotated.
Fig. 2 is referred to, Fig. 2 is the schematic flow sheet of the method for data synchronization second embodiment of the present invention.
The method of data synchronization of present embodiment is with the difference of first embodiment：Obtaining the control end
The control instruction of generation, corresponding control behaviour is carried out to the played data to control the broadcasting end according to the control instruction
It is further comprising the steps of before the step of making：
Step S201, receives the request that the control end downloads the thumbnail of the played data.
Step S202, from the broadcasting end thumbnail of the played data is obtained, and generates thumbnail list.
Step S203, shows the thumbnail list as playlist in the control end.
Present embodiment, by the thumbnail of the played data playlist is generated, and can reduce the data volume of control end,
Improve the control efficiency to playing end.
Wherein, play end and receiving when commencing play out the instruction of the played data of control end transmission, that is, generate institute
State the thumbnail of played data.
In one embodiment, the step of control instruction for obtaining the control end generation, comprises the following steps：
Detection user touches the touch parameter in the viewing area of the thumbnail.
According to default touch parameter and the corresponding relation of control instruction, control corresponding with the touch parameter for detecting is generated
System instruction.
In the present embodiment, user is by the trigger action to the thumbnail, you can generate corresponding control instruction.
In another embodiment, the step of control instruction for obtaining the control end generation, comprises the following steps：
Obtain the touch parameter of the touch operation to programmable button；
According to the corresponding relation between the default corresponding relation for touching parameter and control instruction, the touch for generating and detecting
The corresponding control instruction of parameter.
In other embodiments, the step of control instruction for obtaining the control end generation, comprises the following steps：
The gravity direction of the control end is obtained by the gravity sensor of the control end.
According to the corresponding relation between the corresponding relation of default gravity direction and control instruction, the gravity for generating and detecting
The corresponding control instruction in direction.
Fig. 3 is referred to, Fig. 3 is the schematic flow sheet of the embodiment of method of data synchronization the 3rd of the present invention.
The method of data synchronization of present embodiment is comprised the following steps：
Step S301, control end commences play out the enabled instruction of correspondence PowerPoint to end transmission is played.
Step S301, plays end and receives the enabled instruction, and by multimedia play software the PowerPoint is played, and
The thumbnail of the PowerPoint is generated according to the PowerPoint.
Step S303, control end sends the request of the thumbnail for downloading the PowerPoint to end is played.
Step S304, plays termination and receives after the request, and to control end the thumbnail is sent.
Step S305, control end receives the thumbnail, generates thumbnail list (including the played column of the thumbnail
Table), and show the breviary chart.
Step 306, the operational order that receive user is operated to control end thumbnail list is (such as：Lower one page, upper one
The operational orders such as page, formfeed, annotation), corresponding operating is carried out to the breviary chart, and the operational order is referred to as control
Make to broadcasting end and sending.
Step S307, after playing the control instruction that end receives control end transmission, according to the control instruction, to the demonstration
Manuscript carries out corresponding operating (such as one page, page up, formfeed, annotation operation), the PowerPoint is currently shown with control end
The thumbnail list shown is consistent.
Step S308, detect user to play end PowerPoint operational order (following one page, page up, formfeed, batch
The operational orders such as note), the PPT status monitors at end are played in triggering, obtain the first state of the current play status of PowerPoint
Information, and send to control end.
Step 309, the first state information and thumbnail list current state information (the second status information) no
When consistent, synchronic command (operational order such as following one page, page up, formfeed, annotation) is generated, control end refers to according to the synchronization
Order carries out corresponding simultaneously operating to thumbnail list, makes the broadcast state of thumbnail list and the broadcasting shape of the PowerPoint
State is consistent.
Fig. 4 is referred to, Fig. 4 is the structural representation of the data synchronous system first embodiment of the present invention.
The data synchronous system of present embodiment include detection module 100, block of state 200, acquisition module 300,
Instruction module 400 and synchronization module 500, wherein：
Detection module 100, for detecting user to playing the Action Events of the played data at end.
Block of state 200, for when the Action Events are detected, obtaining the current play status of the played data
First state information.
Acquisition module 300, for obtaining the second status information of the current play status of the playlist of control end.
Instruction module 400, for when the first state information is inconsistent with second status information, generating and institute
State the corresponding synchronic command of Action Events.
Synchronization module 500, for sending the synchronic command to the control end, makes the control end according to the synchronization
Instruction carries out corresponding simultaneously operating to the playlist.
Present embodiment, obtains first state information and the broadcasting of control end of the current play status of the played data
Second status information of the current play status of list, if the first state information is inconsistent with second status information,
The synchronic command corresponding with the Action Events is then generated, and the synchronic command is sent to the control end, made described
Control end carries out corresponding simultaneously operating according to the synchronic command to the playlist, can make the playlist of control end with
The played data for playing end keeps synchronous.
Wherein, for detection module 100, the played data is preferably PowerPoint, can also be people in the art
Other usual played datas of member, such as word document, PDF (Portable Document Format) file.The broadcasting
End can be broadcast for big well known desktop computer, notebook, personal digital assistant, smart phone, broadcasting end computer, portable media
Put the similar devices such as device, Set Top Box.
Preferably, the Action Events include the page turn over operation of the PowerPoint, annotation operation and exit in operation extremely
Few one kind operates corresponding Action Events.Also include that the effective operation to other played datas is corresponding in other embodiments
Action Events.
Further, played data of the user to the broadcasting end is detected by playing the playout software of the played data
Action Events detection.If detecting user (to play the trigger event of the played data as described in user's finger is double-clicked
The viewing area that data are located, switching shows the page), or detect user's broadcasting to described by trigger button or key-press input
The operational order that data are operated, or user are put by rocking grasping to the played data for the broadcasting end triggering
The operational order of work, can determine that the Action Events for detecting user to the played data at the broadcasting end.
In one embodiment, also including control module, for obtaining the control instruction that the control end is generated, to control
The broadcasting end carries out corresponding control operation according to the control instruction to the played data.
In the present embodiment, the control operation at response control end, is accordingly controlled end is played to corresponding played data
System operation, it is synchronous with control end to ensure the played data for playing end.
Preferably, the control instruction includes open command, out code, cuts the operational orders such as page instruction, annotation instruction.
Further, can be default by performing to default press key equipment, touch button, viewing area or control terminal
Trigger action, sends corresponding operational order.
For block of state 200, the first state information includes the mark of the currently playing played data of playback terminal
(such as the page number or progress msg), insert information in currently playing played data and from currently playing played data
The information of deletion.Such as：May include the mark of the current page of the PowerPoint and/or be added on the current of the PowerPoint
Endorsement information in the page.
Preferably, can pass through to play end for playing the playout software of the played data (such as Microsoft office
Powerpoint programs), monitor the current play status (currently displaying number of pages, newly-increased data etc.) of the played data.
In one embodiment, when block of state 200 can be used to detect the Action Events, trigger the broadcasting end and use
In the playout software for playing the played data, to obtain the first state information of the current play status of the played data,
By default state interface, the first state information that the broadcasting end obtains is received.
The present embodiment, by playout software can quick obtaining played data playback terminal broadcast state.
For acquisition module 300, the playlist is corresponding with the played data, for identifying the played data.
It can be the list of the thumbnail composition of the played data.The control end can be big well known desktop computer, notebook, individual
The similar devices such as personal digital assistant, smart phone.
Preferably, second status information includes currently playing played column of the playlist in the control end
The mark (such as the thumbnail page number or progress msg) of table, insert the information in currently playing playlist and broadcast from currently
The information deleted in the playlist put.
Further, the newest control instruction that can be sent according to control end, it is determined that broadcasting corresponding with the control instruction
The current play status of list, generate second status information.Also directly can obtain the played column from the control terminal
The current play status of table, generate second status information.
For instruction module 400, the synchronic command is used to make the playlist in the broadcast state of the control end
It is consistent with broadcast state of the played data at the broadcasting end.Such as：Playing progress rate is identical, data that are showing are identical.
In one embodiment, instruction module 400 can be used for：
Whether the comparison first state information is identical with second status information.
If it is different, then judging that the first state information is inconsistent with second status information, first shape is generated
Distinguishing state information between state information and second status information.
According to the distinguishing state information and the default peration data for adjusting the broadcast state of the playlist,
The peration data for the playlist to be adjusted to the first state information from second status information is obtained, is generated
The synchronic command.
The present embodiment, obtains for the playlist to be adjusted to into the first state letter from second status information
The peration data of breath, generates the synchronic command, can be adjusted to the playlist of control end synchronous with the played data.
In other embodiments, can also pass through the usual other technologies means of those skilled in the art and generate the synchronization
Instruction.
In one embodiment, the Action Events of the played data as user to playing end are in the PowerPoint for playing end
During middle addition annotation, instruction module 400 can be additionally used in：
The annotation data included according to the first state information and annotation positional information, generation includes described batch
The annotation instruction (synchronic command) of note data and the annotation positional information.
For synchronization module 500, according to the synchronic command, the playlist can be adjusted to and institute by control end
State the consistent broadcast state of played data.
In one embodiment, the Action Events of the played data as user to playing end are in the PowerPoint for playing end
During middle addition annotation, synchronization module 500 can be used for：
Annotation position and annotation data are obtained from the synchronic command.
According to the resolution of the resolution of the display screen at the broadcasting end and the display screen of the control end, to the annotation
Changed position.
According to the annotation position after conversion, in the correspondence position of the playlist annotation data is annotated.
Fig. 5 is referred to, Fig. 5 is the structural representation of the data synchronous system second embodiment of the present invention.
The data synchronous system of present embodiment is with the difference of first embodiment：Also include breviary module
600, it is used for：
Receive the request that the control end downloads the thumbnail of the played data.
The thumbnail of the played data is obtained from the broadcasting end, thumbnail list is generated.
Show the thumbnail list as playlist in the control end.
Present embodiment, by the thumbnail of the played data playlist is generated, and can reduce the data volume of control end,
Improve the control efficiency to playing end.
Wherein, play end and receiving when commencing play out the instruction of the played data of control end transmission, that is, generate institute
State the thumbnail of played data.
In one embodiment, control module can be used for：
Detection user touches the touch parameter in the viewing area of the thumbnail.
According to default touch parameter and the corresponding relation of control instruction, control corresponding with the touch parameter for detecting is generated
System instruction.
In the present embodiment, user is by the trigger action to the thumbnail, you can generate corresponding control instruction.
In another embodiment, control module can be additionally used in：
Obtain the touch parameter of the touch operation to programmable button.
According to the corresponding relation between the default corresponding relation for touching parameter and control instruction, the touch for generating and detecting
The corresponding control instruction of parameter.
In other embodiments, control module is further useful for：
The gravity direction of the control end is obtained by the gravity sensor of the control end.
According to the corresponding relation between the corresponding relation of default gravity direction and control instruction, the gravity for generating and detecting
The corresponding control instruction in direction.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (8)
1. a kind of method of data synchronization, it is characterised in that comprise the following steps：
Receive the request that control end downloads the thumbnail of played data；
From the thumbnail for playing the end acquisition played data, thumbnail list is generated；
Show the thumbnail list as playlist in the control end；
The control instruction that the control end is generated is obtained, to control the broadcasting end according to the control instruction to the broadcasting number
According to carrying out corresponding control operation；
Action Events of the detection user to the played data at the broadcasting end；
If detecting the Action Events, the first state information of the current play status of the played data is obtained；
Obtain the second status information of the current play status of the playlist of the control end；
If the first state information is inconsistent with second status information, generate corresponding with the Action Events described
Synchronic command；
The synchronic command is sent to the control end, the control end is entered to the playlist according to the synchronic command
The corresponding simultaneously operating of row.
2. method of data synchronization according to claim 1, it is characterised in that obtain the currently playing shape of the played data
The step of first state information of state, comprises the following steps：
When detecting the Action Events, triggering the broadcasting end is used to play the playout software of the played data, to obtain
The first state information of the current play status of the played data；
By default state interface, the first state information that the broadcasting end obtains is received.
3. method of data synchronization according to claim 1, it is characterised in that if the first state information and described second
Status information is inconsistent, then comprise the following steps the step of generate the synchronic command corresponding with the Action Events：
Whether the comparison first state information is identical with second status information；
If it is different, then judging that the first state information is inconsistent with second status information, the first state letter is generated
Distinguishing state information between breath and second status information；
According to the distinguishing state information and the default peration data for adjusting the broadcast state of the playlist, obtain
For the playlist to be adjusted to the peration data of the first state information from second status information, generate described
Synchronic command.
4. method of data synchronization according to claim 1, it is characterised in that obtain the control instruction that the control end is generated
The step of comprise the following steps：
Detection user touches the touch parameter in the viewing area of the thumbnail；
According to default touch parameter and the corresponding relation of control instruction, generate control corresponding with the touch parameter for detecting and refer to
Order.
5. method of data synchronization as claimed in any of claims 1 to 4, it is characterised in that the playback data
Include PowerPoint.
6. method of data synchronization according to claim 5, it is characterised in that the Action Events include the PowerPoint
Page turn over operation, annotation operation and exit at least one of operation corresponding Action Events of operation.
7. method of data synchronization according to claim 5, it is characterised in that the first state information includes the demonstration
The mark of the current page of manuscript and/or the endorsement information being added in the current page of the PowerPoint.
8. a kind of data synchronous system, it is characterised in that include：
Breviary module, is used for：
Receive the request that control end downloads the thumbnail of played data；
From the thumbnail for playing the end acquisition played data, thumbnail list is generated；
Show the thumbnail list as playlist in the control end；
Control module, for obtaining the control instruction that the control end is generated, is referred to controlling the broadcasting end according to the control
Order carries out corresponding control operation to the played data；
Detection module, for detecting Action Events of the user to the played data at the broadcasting end；
Block of state, for when the Action Events are detected, obtaining the first of the current play status of the played data
Status information；
Acquisition module, for obtaining the second status information of the current play status of the playlist of the control end；
Instruction module, for when the first state information is inconsistent with second status information, generating and the operation
The corresponding synchronic command of event；
Synchronization module, for sending the synchronic command to the control end, makes the control end according to the synchronic command pair
The playlist carries out corresponding simultaneously operating.
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| CN105635831A (en) * | 2014-11-07 | 2016-06-01 | 中兴通讯股份有限公司 | Demonstration document operation method, demonstration document operation system, demonstration document control device and demonstration document demonstration device |
| CN105915624B (en) * | 2016-05-20 | 2020-04-03 | 广州视睿电子科技有限公司 | Method, device and system for updating data and external equipment |
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