CN105406955A - Data output control method and system - Google Patents

Abstract

The invention discloses a data output control method, and the method comprises the steps: determining an output time point of to-be-outputted data according to the network time delay time duration of each prestored output terminal when a control terminal detects a data output instruction, wherein the difference between the output time point and a current time point is greater than or equal to the maximum network time delay time duration; respectively transmitting the to-be-outputted data and the determined output time point to each output terminal through the control terminal, so that each output terminal plays the received to-be-outputted data when the output time point arrives, wherein the control terminal is consistent in the current time point with all output terminals. The invention also discloses a data output control system. The method achieves the synchronous output of the to-be-outputted data of all terminals under the condition of guaranteeing that the network time delays among the output terminals are different.

Description

The control method that data export and system

Technical field

The present invention relates to data and export field, particularly relate to control method and the system of data output.

Background technology

Along with the rise of mobile interchange technology, the intelligent terminal being representative with smart mobile phone, panel computer has started a revolution of have swepting the globe.Intelligent terminal has become the requisite portable set of people, gos deep into the every aspect of people's life, also inevitably changes home entertaining mode.

User can using smart mobile phone and panel computer etc. as control end, control the data that outlet terminal (as display audio amplifier etc.) output control terminal is preserved, especially the same data of outlet terminal synchronism output are controlled at control end, as multiple outlet terminal play same video time, may due to the time delay of network, cause part outlet terminal card to pause, thus it is no longer synchronous to cause the data of multiple outlet terminal to export, and is difficult to when user's nonintervention recover synchronous.

Summary of the invention

Main purpose of the present invention is that solving multiple outlet terminal data exports nonsynchronous technical problem.

For achieving the above object, the control method that a kind of data provided by the invention export, the control method that described data export comprises the following steps:

Control end is when detecting the data output request instruction that described outlet terminal sends, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

Described control end by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received.

Preferably, data to be output and described output time point are sent outlet terminal described in each by described control end respectively, and for outlet terminal described in each when described output time point arrives, the step exporting the data described to be output received comprises:

Described control end is according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Output time point is sent to described outlet terminal by described control end, and according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, described data to be output are sent successively to outlet terminal described in each, for described outlet terminal when output time point arrives, export the data described to be output received.

Preferably, described control end by data to be output and the output time point determined respectively correspondence also comprise after being sent to outlet terminal step described in each:

Described control end is sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

When not receiving the described response data packet of arbitrary outlet terminal feedback, described control end controls all outlet terminals and stops data exporting.

Preferably, described when described control terminal does not receive the described response data packet of arbitrary outlet terminal feedback, after described control terminal controls the step of all outlet terminals stopping data output, described data output controlling method also comprises:

Described control end and the described outlet terminal not feeding back described response data packet re-establish network be connected time, described control end resets output time point;

Described output time point and the described Packet Generation to be output of resetting to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, is exported the packet described to be output received by described control end.

In addition, for achieving the above object, the present invention also proposes the control method that a kind of data export, and the control method that described data export comprises the following steps:

Control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Described control end, according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

In addition, for achieving the above object, the present invention also proposes the control method that a kind of data export, and the control method that described data export comprises the following steps:

Control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the second waiting time of outlet terminal described in each, wherein, time difference between described second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

Described data to be output and described second waiting time of determining are sent to corresponding outlet terminal by described control end, for outlet terminal described in each when described second waiting time received arrives, export the data described to be output received.

In addition, for achieving the above object, the present invention also proposes the control system that a kind of data export, and the control system that described data export comprises:

First determination module, for when detecting the data output instruction that outlet terminal sends, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

First sending module, for by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received.

Preferably, the control system that described data export comprises:

First receiver module, for sending in the process of data to be output to described outlet terminal, is receiving the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

First processing module, for when not receiving the described response data packet of arbitrary outlet terminal feedback, controlling all outlet terminals and stopping data exporting.

In addition, for achieving the above object, the present invention also proposes the control system that a kind of data export, and the control system that described data export comprises:

Second determination module, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Second sending module, for according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

In addition, for achieving the above object, the present invention also proposes the control system that a kind of data export, and the control system that described data export comprises:

3rd determination module, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the second waiting time of outlet terminal described in each, wherein, time difference between second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

3rd sending module, for described data to be output and described second waiting time of determining are sent to corresponding outlet terminal, for outlet terminal described in each when the second waiting time received arrives, exports the data described to be output received.

The control method that the data that the present invention proposes export and system, control end is based on the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, the time difference between described output time point and current point in time is more than or equal to maximum network delay duration; Data to be output and described output time point are sent outlet terminal described in each by described control end respectively, for outlet terminal described in each when described output time point arrives, play the data described to be output received, during to ensure the network delay difference between each outlet terminal, realize the synchronism output to data to be output of each terminal.

Accompanying drawing explanation

Fig. 1 is the schematic flow sheet of control method first embodiment that data of the present invention export;

Described in control method second embodiment that Fig. 2 exports for data of the present invention, control end sends the schematic flow sheet not receiving described outlet terminal response data packet in the process of data to be output to described outlet terminal;

Fig. 3 is that the outlet terminal of non-feedback response packet in control method the 3rd embodiment of data of the present invention output re-establishes the schematic flow sheet after being connected with control end;

Fig. 4 is the schematic flow sheet of control method the 4th embodiment that data of the present invention export;

Fig. 5 is the schematic flow sheet of control method the 5th embodiment that data of the present invention export;

Fig. 6 is the high-level schematic functional block diagram of control system first embodiment that data of the present invention export;

Fig. 7 is the high-level schematic functional block diagram of control system second embodiment that data of the present invention export;

Fig. 8 is the high-level schematic functional block diagram of control system the 3rd embodiment that data of the present invention export;

Fig. 9 is the high-level schematic functional block diagram of control system the 4th embodiment that data of the present invention export;

Figure 10 is the high-level schematic functional block diagram of control system the 5th embodiment that data of the present invention export.

The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.

Embodiment

Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

The invention provides the control method that a kind of data export.

With reference to the schematic flow sheet that Fig. 1, Fig. 1 are control method first embodiment that data of the present invention export.

The control method that the data that the present embodiment proposes export, comprising:

Step S10, control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

In the present embodiment, this control end can be the terminals such as mobile phone, panel computer, controller and server.Data export the broadcasting (if the broadcasting of audio, video data or the display of data are as the display of PPT) referring to data, and this network delay duration refers to that control end sends data to outlet terminal duration used.And user can preset the multiple outlet terminals needing to play on control end simultaneously, such as, outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, and the current point in time of control end is t1, then corresponding output time point is greater than t1+400ms.

In other variant embodiment, for the synchronism ensureing that between each terminal, data export, control end detect be connected with the network of outlet terminal time and afterwards every preset the time interval, carry out the determination of clock synchronous before control end and each outlet terminal and network delay duration, Clock Synchronization Procedure between this control end and each outlet terminal and the determination of network delay duration as follows: bag when control end to send pair to outlet terminal, and when detecting the response data packet that outlet terminal feeds back based on bag when described pair, the time point T1 that described control end sends to outlet terminal based on it and receive response data packet time point T2 between the time interval, determine network delay duration, this network delay duration is T=(T2-T1)/2, network delay duration and its current point in time are sent to outlet terminal by described control end, clock alignment is carried out based on the current point in time received and network delay duration for outlet terminal, the determination of network delay duration and the calibration of clock of each outlet terminal can be realized by the way, after the calibration completing clock, the parameter information of each outlet terminal is associated with network delay duration and preserves, this parameter information can comprise the address information and/or identification information etc. of outlet terminal.

It will be understood by those skilled in the art that, for reducing overhead, then this each outlet terminal prestored may be current in running order outlet terminal, then outlet terminal is when starting shooting, its parameter information can be sent to control end, control end carry out with process during outlet terminal pair as above, do not repeat them here, or outlet terminal is when starting shooting, its parameter information is sent to control end, and to bag during control end transmission pair, control end receive outlet terminal send pair time bag time, response data packet is sent to described control end, the time point T1 that described outlet terminal sends to control end based on it and receive response data packet time point T2 between the time interval, determine network delay duration, this network delay duration is T=(T2-T1)/2, network delay duration is sent to control end by described outlet terminal, and when receiving the time point of control end feedback, described outlet terminal delay duration Network Based and the current point in time received carry out clock alignment.

Step S20, described control end by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received, described control end is consistent with each outlet terminal current point in time.

In the present embodiment, because each outlet terminal may occur due to the clock failure situation not corresponding with control end present clock in running, therefore for improving the synchronism that outlet terminal data export, described step S20 comprises: described control end by the output time determined point respectively correspondence be sent to outlet terminal described in each; When not receiving the successful respond information of all outlet terminals feedback within a preset time interval, described terminal stops the data of all outlet terminals to export simultaneously; Or, described control end by the output time determined point respectively correspondence be sent to outlet terminal described in each; When receiving the answer failed information of outlet terminal feedback within a preset time interval, the clock synchronous that described terminal re-starts control end based on described answer failed information and sends between answer failed information output terminals, after carrying out clock synchronous, redefine output time point, and output time point is resend to each outlet terminal, in the present embodiment, outlet terminal can be later than its system clock current point in time at the output time point received, then send answer failed message to control end.

The control method that the data that the present embodiment proposes export, control end is based on the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, the time difference between described output time point and current point in time is more than or equal to maximum network delay duration; Data to be output and described output time point are sent outlet terminal described in each by described control end respectively, for outlet terminal described in each when described output time point arrives, play the data described to be output received, during to ensure the network delay difference between each outlet terminal, realize the synchronism output to data to be output of each terminal.

Further, be the spatial cache avoiding overabundance of data to be output to take outlet terminal, to save cost, described step S20 comprises step:

Described control end is according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, equal outlet terminal described in each;

Output time point is sent to described outlet terminal by described control end, and according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, described data to be output are sent successively to outlet terminal described in each, for described outlet terminal when output time point arrives, export the data described to be output received.

In the present embodiment, this first waiting time refers to that control end sends the time interval waited for required for data to be output to outlet terminal.Based on the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, when transmitting time point or the first waiting time arrive, outlet terminal to correspondence sends data to be output, identical to ensure the time that each data to be output arrive outlet terminal, to avoid the too much buffer memory of outlet terminal data to be output.Such as, outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, then because maximum network delay duration is 400ms, then can calculate the first waiting time corresponding to each outlet terminal based on the difference between the network delay duration of each outlet terminal and maximum network delay duration, outlet terminal is respectively A, B, the first waiting time that C and D is corresponding is respectively 200+nms, 50+nms, 100+nms and nms, wherein said n is more than or equal to 0, 0 is preferably for improving data transmission efficiency n, data to be output are sent to corresponding outlet terminal by length namely based on each the first waiting time successively, such as after nms, described data to be output are sent to outlet terminal D, after 50+nms, described data to be output are sent to outlet terminal B, after 100+nms, described data to be output are sent to outlet terminal C, after 200+nms, described data to be output are sent to outlet terminal A, or according to the sum determination transmitting time point between the difference between the network delay duration of each outlet terminal and maximum network delay duration and current point in time, as outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, then because maximum network delay duration is 400ms, outlet terminal is respectively A, B, the transmitting time point that C and D is corresponding is respectively 200+t1+nms, 50+t1+nms, 100+t1+nms and t1+nms makes each outlet terminal send data to be output at the transmitting time point of correspondence, wherein t1 is the current point in time of control end.

Further, for improving the synchronism that each outlet terminal data export, with reference to Fig. 2, control method second embodiment of data of the present invention output is proposed based on the first embodiment, in the present embodiment, in a first embodiment control end described in step S20 by data to be output and the output time point determined respectively correspondence also comprise after being sent to outlet terminal described in each:

Step S30, described control end is sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

Step S40, when not receiving the described response data packet of arbitrary outlet terminal feedback, described control end controls all outlet terminals and stops data exporting.

It will be appreciated by persons skilled in the art that as avoiding network to occur delayed, then step S40 comprises:

When not receiving the described response data packet of arbitrary outlet terminal feedback, described control end resends the packet to be output of current transmission to described outlet terminal, and records number of retransmissions;

When described number of retransmissions is greater than pre-set threshold value, described control end controls all outlet terminals and stops data exporting.

In the present embodiment, described control end control all outlet terminals stop data export realize by following three kinds of modes:

1) described control end sends to described outlet terminal and stops output order, for control terminal described in each when receiving described stopping output order, stop exporting the data to be output received, outlet terminal is when receiving stopping output order, while the data to be output stopping output receiving, the data to be output in buffer memory can be deleted

2) described control end stops sending data to be output to outlet terminal; Now outlet terminal is in the state of pending buffer.

3) described control end stops sending data to be output to outlet terminal, to save the spatial cache of outlet terminal while outlet terminal sends stopping output order.

In the present embodiment, when the number of retransmissions of a certain outlet terminal is greater than pre-set threshold value, the non-constant of network environment that this outlet terminal is current is described, the obviously asynchronous of transfer of data between multiple terminal may be caused, now, control end controls all outlet terminals and stops data exporting simultaneously, makes each control terminal stop exporting the data to be output received simultaneously, to ensure the synchronism that the data of each outlet terminal export.

It will be appreciated by persons skilled in the art that the flexibility for improving the control that data export, when described number of retransmissions is greater than pre-set threshold value, the data the output whether information that described control end can show present terminal suspends current outlet terminal to point out user; When receiving the instruction of the data output suspending current outlet terminal, described control end controls all outlet terminals and stops data exporting simultaneously.

Further, for improving the synchronism that each outlet terminal data export, with reference to Fig. 3, propose third embodiment of the invention based on the second embodiment, in the present embodiment, in a second embodiment after step S40, the control method that described data export also comprises:

Step S50, described control end and the outlet terminal of described non-feedback response packet re-establish network be connected time, described control end resets output time point;

In the present embodiment, described control end and described abnormal outlet terminal (i.e. the outlet terminal of non-feedback response packet) re-establish network be connected refer to described control end receive described abnormal export send pair time packet or other heartbeat data packets.Such as, outlet terminal can wrap to during control end transmission pair in timing, to represent its current normal operation, the time point that outlet terminal also can send based on timing bag and network delay duration corresponding to outlet terminal determine the synchronism of each outlet terminal, to carry out the continuous timing adjustment of Packet Generation, to improve the synchronism that between each outlet terminal, data export.

Detect abnormal outlet terminal send pair time packet time, control end can re-start the clock synchronous of abnormal outlet terminal with this, to redefine network delay duration, based on the network delay duration of the network delay duration determined and other outlet terminal, reset output time point; Or, detect abnormal outlet terminal send pair time packet time, control end can re-start the clock synchronous with all outlet terminals, to redefine the network delay duration of each outlet terminal, resets output time point based on the network delay duration determined.

Step S60, described control end by the described output time point that resets and described Packet Generation to be output to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the packet described to be output received.

The present invention further provides the control method that a kind of data export.

With reference to the schematic flow sheet that Fig. 4, Fig. 4 are control method the 4th embodiment that data export.

The control method that the data that the present embodiment proposes export, comprising:

Step S70, control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

In the present embodiment, network delay duration refers to that data to be output are sent to the time interval required for outlet terminal by control end, first waiting time referred to that data to be output were sent the time interval of outlet terminal needs wait by control end, and namely control end exports data to be output to described outlet terminal after the first waiting time.This control end can be the terminals such as mobile phone, panel computer, controller and server.Data export the broadcasting (if the broadcasting of audio, video data or the display of data are as the display of PPT) referring to data.

Step S80, described control end, according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

In the present embodiment, when determining transmitting time point, the current point in time of its clock of control end Real-time Obtaining, when there being transmitting time point to arrive, the data to be output of correspondence are sent to outlet terminal, till all sending data to be output to all outlet terminals; Get for waiting time time, control end controller clock starts timing, when there being waiting time to arrive, the data to be output of correspondence is sent to outlet terminal, till all sending data to be output to all outlet terminals.

Such as, outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, and the current point in time of control end is t1, then A, B, the transmitting time point that C and D is corresponding can be t1+200+n, t1+50+n, t1+100+n and t1+n, wherein n >=0, it is whole that the numerical value of n can carry out promoting or transferring as required by user, then corresponding waiting time 200ms+n, 50ms+n, 100ms+n and n, wherein n >=0, it is whole that the numerical value of n can carry out promoting or transferring as required by user, then control end is after transmitting time point is determined, data to be output are sent to outlet terminal D when t1+n arrives, data to be output are sent to outlet terminal B when t1+50+n arrives, data to be output are sent to outlet terminal when t1+100+n arrives, data to be output are sent to outlet terminal A when t1+200+n arrives, or control end starts timing after the first waiting time was determined, data to be output are sent to outlet terminal D when n arrives, data to be output are sent to outlet terminal B when 50+n arrives, data to be output are sent to outlet terminal when 100+n arrives, data to be output are sent to ensure that data to be output arrive outlet terminal A simultaneously to outlet terminal A when 200+n arrives, B, C and D.

It will be understood by those skilled in the art that, for improving the synchronism that each outlet terminal data export, described control end is sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission; When not receiving the response data packet of arbitrary described outlet terminal feedback within the time interval of presetting, described control end controls all described outlet terminals and stops data exporting.Further, occur that for avoiding network delayed fashion is misjudged, when then not receiving the response data packet of arbitrary described outlet terminal feedback within the time interval of presetting, described control end resends the packet to be output of current transmission to the described outlet terminal not feeding back corresponding data bag, and records number of retransmissions; When described number of retransmissions is greater than pre-set threshold value, described control end controls all described outlet terminals and stops data exporting.

In the present embodiment, described control end control all outlet terminals stop data export realize by following three kinds of modes:

1) described control end sends to described outlet terminal and stops output order, for control terminal described in each when receiving described stopping output order, stop exporting the data to be output received, outlet terminal is when receiving stopping output order, while the data to be output stopping output receiving, the data to be output in buffer memory can be deleted

2) described control end stops sending data to be output to outlet terminal; Now outlet terminal is in the state of pending buffer.

3) described control end stops sending data to be output to outlet terminal, to save the spatial cache of outlet terminal while outlet terminal sends stopping output order.

It will be appreciated by persons skilled in the art that the flexibility for improving the control that data export, when described number of retransmissions is greater than pre-set threshold value, the data the output whether information that described control end can show present terminal suspends current outlet terminal to point out user; When receiving the instruction of the data output suspending current outlet terminal, described control end sends to described outlet terminal and stops output order, to ensure the normal output of other terminal.

The control method that the data that the present embodiment proposes export, directly based on the network delay duration that each control terminal is corresponding.Determine transmitting time or the stand-by period of data to be output, to ensure the synchronism that each outlet terminal data export, and when need not to carry out pair the clock of each terminal, determine the output time point of each outlet terminal, the process exporting data syn-chronization is very easy and accurately.

Further, for improving the synchronism that each outlet terminal data export, control when described control terminal does not receive the described response data packet of arbitrary outlet terminal feedback also to comprise after all outlet terminals stop the step of data output:

Described control end and the described outlet terminal not feeding back corresponding data bag re-establish network when being connected, and described control end redefines transmitting time or the first waiting time; Described packet to be output, based on the transmitting time determined or the first waiting time, is sent to outlet terminal described in each by described control end successively, exports the packet described to be output received for outlet terminal described in each.Described control end and described abnormal outlet terminal (namely not feeding back the outlet terminal of corresponding data bag) re-establish network be connected refer to described control end receive described abnormal export send pair time packet or other heartbeat data packets.

Detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, control end can re-start the clock synchronous of the outlet terminal exceeding pre-set threshold value with this number of retransmissions, to redefine network delay duration, based on the network delay duration of the network delay duration determined and other outlet terminal, redefine transmitting time point or the first waiting time; Or, detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, control end can re-start the clock synchronous with all outlet terminals, to redefine the network delay duration of each outlet terminal, based on the network delay duration determined, redefine transmitting time point or the first waiting time.

The present invention further provides the control method that a kind of data export.

With reference to the schematic flow sheet that Fig. 5, Fig. 5 are control method the 5th embodiment that data export.

The control method that the data that the present embodiment proposes export, comprising:

Step S90, control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the second waiting time of outlet terminal described in each, wherein, time difference between second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

In the present embodiment, network delay duration refers to that data to be output are sent to the time interval required for outlet terminal by control end, second waiting time referred to that outlet terminal exported its data to be output received required time interval waited for, namely outlet terminal exports the data to be output received after the second waiting time.This control end can be the terminals such as mobile phone, panel computer, controller and server.Data export the broadcasting (if the broadcasting of audio, video data or the display of data are as the display of PPT) referring to data.

Step S100, described data to be output and the second waiting time of determining are sent to corresponding outlet terminal by described control end, for outlet terminal described in each when the second waiting time received arrives, export the data described to be output received.

Such as, outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, determine that maximum network delay duration is 400ms, then in order to ensure all outlet terminal network delay durations with corresponding second waiting time sum equal, namely network delay duration is shorter, more first receive data to be output thus the second waiting time longer, then corresponding second waiting time 200+nms, 50+nms, 100+nms and nms, wherein n >=0, it is whole that the numerical value of n can carry out promoting or transferring as required by user.Outlet terminal A, B, C and D are when receiving data to be output and second waiting time of control end transmission, start timing, described outlet terminal A, B, C and D play the data to be output received respectively after 200+nms, 50+nms, 100+n and nms, to ensure the synchronism that each outlet terminal data export.

It will be understood by those skilled in the art that, for improving the synchronism that each outlet terminal data export, described control end is sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission; When not receiving the response data packet of arbitrary described outlet terminal feedback within the time interval of presetting, described control end controls all outlet terminals and stops data exporting.Further, for in order to avoid network to occur, delayed fashion is misjudged, when then not receiving the response data packet of described outlet terminal feedback within the time interval of presetting, described control end resends the packet to be output of current transmission to the outlet terminal of described non-feedback response packet, and records number of retransmissions; When described number of retransmissions is greater than pre-set threshold value, described control end controls all outlet terminals and stops data exporting.

In the present embodiment, described control end control all outlet terminals stop data export realize by following three kinds of modes:

1) described control end sends to described outlet terminal and stops output order, for control terminal described in each when receiving described stopping output order, stop exporting the data to be output received, outlet terminal is when receiving stopping output order, while the data to be output stopping output receiving, the data to be output in buffer memory can be deleted

2) described control end stops sending data to be output to outlet terminal; Now outlet terminal is in the state of pending buffer.

3) described control end stops sending data to be output to outlet terminal, to save the spatial cache of outlet terminal while outlet terminal sends stopping output order.

It will be appreciated by persons skilled in the art that the flexibility for improving the control that data export, when described number of retransmissions is greater than pre-set threshold value, the data the output whether information that described control end can show present terminal suspends current outlet terminal to point out user; When receiving the instruction of the data output suspending current outlet terminal, described control end sends to described outlet terminal and stops output order, to ensure the normal output of other terminal.

The control method that the data that the present embodiment proposes export, directly based on the network delay duration that each control terminal is corresponding, determine that outlet terminal exports the second waiting time of data, to ensure the synchronism that each outlet terminal data export, and when need not to carry out pair the clock of each terminal, the process exporting data syn-chronization is very easy and accurately.

Further, for improving the synchronism that each outlet terminal data export, control all outlet terminals stopping data output step when described control terminal does not receive arbitrary outlet terminal feedback response packet after, described control end and the outlet terminal of described non-feedback response packet re-establish network be connected time, the described control end person of redefining second waiting time; Described outlet terminal, based on the second waiting time received, exports the packet described to be output received.Described control end and described abnormal outlet terminal (namely not feeding back the outlet terminal of corresponding data bag) re-establish network be connected refer to described control end receive described abnormal export send pair time packet or other heartbeat data packets.

Detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, control end can re-start the clock synchronous of the outlet terminal exceeding pre-set threshold value with this number of retransmissions, to redefine network delay duration, based on the network delay duration of the network delay duration determined and other outlet terminal, redefined for the second waiting time; Or, detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, control end can re-start the clock synchronous with all outlet terminals, to redefine the network delay duration of each outlet terminal, based on the network delay duration determined, redefined for the second waiting time.

The present invention further provides the control system that a kind of data export.

With reference to the high-level schematic functional block diagram that Fig. 6, Fig. 6 are the control system that data export.

It is emphasized that, to one skilled in the art, functional block diagram shown in Fig. 6 is only the exemplary plot of a preferred embodiment, the functional module of the control system that those skilled in the art exports around the data shown in Fig. 6, can carry out supplementing of new functional module easily; The title of each functional module is self-defined title, only for auxiliary each program function block understanding the control system that these data export, be not used in and limit technical scheme of the present invention, the core of technical solution of the present invention is, the function that the functional module of respective define name will be reached.

The control system that the data that the present embodiment proposes export, comprising:

First determination module 10, for when detecting the data output instruction that outlet terminal sends, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

In the present embodiment, the control end at this first determination module 10 place can be the terminals such as mobile phone, panel computer, controller and server.Data export refer to the broadcasting (if the broadcasting of audio, video data or the display of data are as the display of PPT) of data, this network delay duration refer to the first determination module 10 place to control end send data to outlet terminal duration used.And user can preset the multiple outlet terminals needing to play on control end simultaneously, such as, outlet terminal is respectively A, B, C and D, and the network delay duration of correspondence is respectively 200ms, 350ms, 300ms and 400ms, and the time point of current control end is t1, then corresponding output time point is greater than t1+400ms.

In other variant embodiment, for the synchronism ensureing that between each outlet terminal, data export, the control end at the first determination module 10 place detect be connected with the network of outlet terminal time and afterwards every the time interval of presetting, carry out the determination of clock synchronous before control end and each outlet terminal and network delay duration, Clock Synchronization Procedure between the control end at this first determination module 10 place and each outlet terminal and the determination of network delay duration as follows: the bag when control end at the first determination module 10 place to send pair to outlet terminal, and when detecting the response data packet that outlet terminal feeds back based on bag when described pair, the time point T1 that the control end at the first determination module 10 place sends to outlet terminal based on it and receive response data packet time point T2 between the time interval, determine network delay duration, this network delay duration is T=(T2-T1)/2, network delay duration and its current point in time are sent to outlet terminal by the control end at the first determination module 10 place, clock alignment is carried out based on the time point received and network delay duration for outlet terminal, the determination of network delay duration and the calibration of clock of each outlet terminal can be realized by the way, after the calibration completing clock, the parameter information of each outlet terminal is associated with network delay duration and preserves, this parameter information can comprise the address information and/or identification information etc. of outlet terminal.

First sending module 20, for by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received.

In the present embodiment, because each outlet terminal may occur due to the clock failure situation not corresponding with the control end present clock at the first determination module 10 place in running, therefore for improving the synchronism that outlet terminal data export, described first sending module 20 also for by the output time determined point respectively correspondence be sent to outlet terminal described in each; When not receiving the successful respond information of all outlet terminals feedback within a preset time interval, stop the data of all outlet terminals to export simultaneously.Or, the first sending module 20 by the output time determined point respectively correspondence be sent to outlet terminal described in each; When receiving the answer failed information of outlet terminal feedback within a preset time interval, the clock synchronous that the control end at the first sending module 20 place re-starts control end based on described answer failed information and sends between answer failed information output terminals, after carrying out clock synchronous, redefine output time point, output time point resends to each outlet terminal by the first sending module 20, in the present embodiment, outlet terminal can be later than its system clock current time at the reproduction time received, then send answer failed message to control end.

The control system that the data that the present embodiment proposes export, control end is based on the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, the difference between described output time point and current point in time is more than or equal to maximum network delay duration; Data to be output and described output time point are sent outlet terminal described in each by described control end respectively, for outlet terminal described in each when described output time point arrives, play the data described to be output received, during to ensure the network delay difference between each outlet terminal, realize the synchronism output to data to be output of each terminal.

Further, be the spatial cache avoiding overabundance of data to be output to take outlet terminal, to save cost, described first sending module 20 comprises:

First determining unit, for the network delay duration according to each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, between the transmitting time point of outlet terminal described in each or the time difference of the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

First transmitting element, for output time point is sent to described outlet terminal, and according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, described data to be output are sent successively to outlet terminal described in each, for described outlet terminal when output time point arrives, export the data described to be output received.

Further, for improving the synchronism that each outlet terminal data export, with reference to Fig. 7, propose control system second embodiment of data of the present invention output based on the first embodiment, in the present embodiment, the control system that described data export also comprises:

First receiver module 30, for sending in the process of data to be output to described outlet terminal, is receiving the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

First processing module 40, for when not receiving the described response data packet of arbitrary outlet terminal feedback, controlling all outlet terminals and stopping data exporting.

It will be appreciated by persons skilled in the art that as avoiding network to occur delayed, then the first processing module 40 comprises:

First transmission unit, for when not receiving the described response data packet of arbitrary outlet terminal feedback, resending the packet to be output of current transmission, and recording number of retransmissions to described outlet terminal;

First processing unit, for when described number of retransmissions is greater than pre-set threshold value, controls all outlet terminals and stops data exporting.

Further, for improving the synchronism that each outlet terminal data export, with reference to Fig. 8, propose control system the 3rd embodiment of data of the present invention output based on the second embodiment, in the present embodiment, described data output control system also comprises:

First setting module 50, for the control end at setting module 50 place and the outlet terminal of described non-feedback response packet re-establish network be connected time, reset output time point;

First sending module 20 also for by described output time point and the described Packet Generation to be output of resetting to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the packet described to be output received.

The implementation procedure that above-mentioned module is concrete is identical with the control method that corresponding data export, and is not repeated at this.

The present invention further provides the control system that a kind of data export.

With reference to the high-level schematic functional block diagram that Fig. 9, Fig. 9 are control system the 4th embodiment that data export.

The control system that the data that the present embodiment proposes export, comprising:

Second determination module 60, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Second sending module 70, for according to transmitting time point corresponding to outlet terminal described in each or waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

In the present embodiment, get for transmitting time point time, the current point in time of second its clock of sending module 70 Real-time Obtaining, when there being transmitting time point to arrive, the data to be output of correspondence are sent to outlet terminal, till all sending data to be output to all outlet terminals; Get be the first waiting time time, the control end at the second sending module 70 place controls its clock and starts timing, when there being the first waiting time to arrive, the data to be output of correspondence are sent to outlet terminal, till all sending data to be output to all outlet terminals.

It will be understood by those skilled in the art that, for improving the synchronism that each outlet terminal data export, the control system that described data export also comprises: the second receiver module is used for sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission; When second processing module is used for the response data packet not receiving described outlet terminal feedback within the time interval of presetting, controls described outlet terminal and stop data exporting.Further, occur that for avoiding network delayed fashion is misjudged, then described second processing module comprises: the second transmitting element, for preset the time interval in do not receive described outlet terminal feedback response data packet time, described control end resends the packet to be output of current transmission to described outlet terminal; Second record cell, for recording number of retransmissions; Second processing unit, for when described number of retransmissions is greater than pre-set threshold value, controls described outlet terminal and stops data exporting.

It will be understood by those skilled in the art that, for improving the flexibility to the control that data export, when described number of retransmissions is greater than pre-set threshold value, the information that the control end at described second sending module 70 place can show present terminal exports with the data pointed out user and whether suspend current outlet terminal; When receiving the instruction of the data output suspending current outlet terminal, described second sending module 70 sends to described outlet terminal and stops output order, to ensure the normal output of other terminal.

The control system that the data that the present embodiment proposes export, directly based on the network delay duration that each control terminal is corresponding.Determine transmitting time or the stand-by period of data to be output, to ensure the synchronism that each outlet terminal data export, and when need not to carry out pair the clock of each terminal, the process exporting data syn-chronization is very easy and accurately.

Further, for improving the synchronism that each outlet terminal data export, described data output control system also comprises: described second determination module 60 also for re-establish at the control end at described second determination module 70 place and the outlet terminal of described non-feedback response packet network be connected time, redefine transmitting time point or the first waiting time; Described packet to be output also for based on the transmitting time point determined or the first waiting time, is sent to outlet terminal described in each by the second sending module 70 successively, exports the packet described to be output received for outlet terminal described in each.Described control end and described abnormal outlet terminal (i.e. the outlet terminal of non-feedback response packet) re-establish network be connected refer to described control end receive described abnormal export send pair time packet or other heartbeat data packets.

Detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, second sending module 70 place control end can re-start the clock synchronous of the outlet terminal exceeding pre-set threshold value with this number of retransmissions, to redefine network delay duration, second determination module 60, based on the network delay duration of the network delay duration determined and other outlet terminal, redefines transmitting time point or the first waiting time; Or, detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, second determination module 60 place control end can re-start the clock synchronous with all outlet terminals, to redefine the network delay duration of each outlet terminal, based on the network delay duration determined, redefine transmitting time point or the first waiting time.

The implementation procedure that above-mentioned module is concrete is identical with the control method that corresponding data export, and is not repeated at this.

The present invention further provides the control system that a kind of data export.

With reference to the high-level schematic functional block diagram that Figure 10, Figure 10 are control system the 5th embodiment that data export.

The control system that the data that the present embodiment proposes export, comprising:

3rd determination module 80, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send second waiting time of data to be output to outlet terminal described in each, wherein, time difference between second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

In the present embodiment, network delay duration refers to that data to be output are sent to the time interval required for outlet terminal by control end, second waiting time referred to and exports its data to be output received required time interval waited for after outlet terminal receives data to be output, and namely outlet terminal exports the data to be output received after the second waiting time.The control end at the 3rd determination module 90 place can be the terminals such as mobile phone, panel computer, controller and server.

3rd sending module 90, for described data to be output and described second waiting time of determining are sent to corresponding outlet terminal, for outlet terminal described in each when the second waiting time received arrives, exports the data described to be output received.

It will be understood by those skilled in the art that, for improving the synchronism that each outlet terminal data export, the control system that described data export also comprises: the 3rd receiver module, for sending in the process of data to be output to described outlet terminal, receiving the response data packet of described outlet terminal based on the packet feedback to be output of current transmission; And the 3rd processing module, during for not receiving the response data packet of described outlet terminal feedback within the time interval of presetting, controlling all outlet terminals and stopping data exporting.Further, for avoiding because misjudgement appears in net lag, then the 3rd processing module comprises: the 3rd transmitting element, for preset the time interval in do not receive described outlet terminal feedback response data packet time, the packet to be output of current transmission is resend to described outlet terminal, 3rd record cell, for recording number of retransmissions; 3rd processing unit, for when described number of retransmissions is greater than pre-set threshold value, controls all outlet terminals and stops data exporting.

It will be understood by those skilled in the art that, for improving the flexibility to the control that data export, when described number of retransmissions is greater than pre-set threshold value, the information that the control end at described 3rd sending module 90 place can show present terminal exports with the data pointed out user and whether suspend current outlet terminal; When receiving the instruction of the data output suspending current outlet terminal, the 3rd sending module 90 sends to described outlet terminal and stops output order, to ensure the normal output of other terminal.

The control system that the data that the present embodiment proposes export, directly based on the network delay duration that each control terminal is corresponding, determine that outlet terminal exports the stand-by period of data, to ensure the synchronism that each outlet terminal data export, and when need not to carry out pair the clock of each terminal, the process exporting data syn-chronization is very easy and accurately.

Further, for improving the synchronism that each outlet terminal data export, the control system that described data export also comprises: described 3rd determination module 80 also for the control end at described 3rd determination module 80 place and the outlet terminal of non-feedback response packet re-establish network be connected time, redefined for the second waiting time; Described 3rd sending module 90 is also for being sent to corresponding outlet terminal by described data to be output and described second waiting time of redefining, for outlet terminal described in each when the second waiting time received arrives, export the data described to be output received.Control end and the outlet terminal of non-feedback response packet at described 3rd determination module 80 place re-establish network be connected refer to that described control end receives that described abnormal outlet terminal sends pair time packet or other heartbeat data packets.

Detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, the control end at described 3rd sending module 90 place can re-start the clock synchronous of the outlet terminal exceeding pre-set threshold value with this number of retransmissions, to redefine network delay duration, described 3rd determination module 80, based on the network delay duration of the network delay duration determined and other outlet terminal, redefined for the second waiting time; Or, detect number of retransmissions exceed pre-set threshold value outlet terminal send pair time packet time, described 3rd sending module 90 place re-start the clock synchronous with all outlet terminals, to redefine the network delay duration of each outlet terminal, described 3rd determination module 80, based on the network delay duration determined, redefined for the second waiting time.

The implementation procedure that above-mentioned module is concrete is identical with the control method that corresponding data export, and is not repeated at this.

It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or system and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or system.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the system comprising this key element and also there is other identical element.

The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.

Through the above description of the embodiments, those skilled in the art can be well understood to the mode that above-described embodiment method can add required general hardware platform by software and realize, hardware can certainly be passed through, but in a lot of situation, the former is better execution mode.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computer, server, air conditioner, or the network equipment etc.) perform method described in each embodiment of the present invention.

These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.

Claims (10)

1. a control method for data output, is characterized in that, the control method that described data export comprises the following steps:

Control end is when detecting the data output request instruction that described outlet terminal sends, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

Described control end by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received.

2. the control method of data output as claimed in claim 1, it is characterized in that, data to be output and described output time point are sent outlet terminal described in each by described control end respectively, for outlet terminal described in each when described output time point arrives, the step exporting the data described to be output received comprises:

Described control end is according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Output time point is sent to described outlet terminal by described control end, and according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, described data to be output are sent successively to outlet terminal described in each, for described outlet terminal when output time point arrives, export the data described to be output received.

3. data output controlling method as claimed in claim 1, is characterized in that, described control end by data to be output and the output time point determined respectively correspondence also comprise after being sent to outlet terminal step described in each:

Described control end is sending in the process of data to be output to described outlet terminal, receives the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

When not receiving the described response data packet of arbitrary outlet terminal feedback, described control end controls all outlet terminals and stops data exporting.

4. data output controlling method as claimed in claim 3, it is characterized in that, it is described when described control terminal does not receive the described response data packet of arbitrary outlet terminal feedback, after described control terminal controls the step of all outlet terminals stopping data output, described data output controlling method also comprises:

Described control end and the described outlet terminal not feeding back described response data packet re-establish network be connected time, described control end resets output time point;

Described output time point and the described Packet Generation to be output of resetting to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, is exported the packet described to be output received by described control end.

5. a control method for data output, is characterized in that, the control method that described data export comprises the following steps:

Control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Described control end, according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

6. a control method for data output, is characterized in that, the control method that described data export comprises the following steps:

Control end is when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the second waiting time of outlet terminal described in each, wherein, time difference between described second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

Described data to be output and described second waiting time of determining are sent to corresponding outlet terminal by described control end, for outlet terminal described in each when described second waiting time received arrives, export the data described to be output received.

7. a control system for data output, is characterized in that, the control system that described data export comprises:

First determination module, for when detecting the data output instruction that outlet terminal sends, according to the network delay duration of each outlet terminal prestored, determine the output time point of described data to be output, wherein, time difference between described output time point and current point in time is more than or equal to maximum network delay duration, and described control end is consistent with each outlet terminal current point in time;

First sending module, for by data to be output and the output time point determined respectively correspondence be sent to outlet terminal described in each, for outlet terminal described in each when described output time point arrives, export the data described to be output received.

8. data output control system as claimed in claim 7, is characterized in that, the control system that described data export comprises:

First receiver module, for sending in the process of data to be output to described outlet terminal, is receiving the response data packet of described outlet terminal based on the packet feedback to be output of current transmission;

First processing module, for when not receiving the described response data packet of arbitrary outlet terminal feedback, controlling all outlet terminals and stopping data exporting.

9. a control system for data output, is characterized in that, the control system that described data export comprises:

Second determination module, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine to send data to be output to the transmitting time point of outlet terminal described in each or the first waiting time, wherein, the transmitting time point of outlet terminal described in each or the time difference between the first waiting time, the time difference between the network delay duration equaling outlet terminal described in each;

Second sending module, for according to transmitting time point corresponding to outlet terminal described in each or the first waiting time, sends described data to be output to outlet terminal described in each successively, exports the data described to be output received for described outlet terminal.

10. a control system for data output, is characterized in that, the control system that described data export comprises:

3rd determination module, for when detecting data output instruction, according to the network delay duration of each outlet terminal prestored, determine the second waiting time of outlet terminal described in each, wherein, time difference between second waiting time of outlet terminal described in each, the time difference between the network delay duration equaling outlet terminal described in each;

3rd sending module, for described data to be output and described second waiting time of determining are sent to corresponding outlet terminal, for outlet terminal described in each when the second waiting time received arrives, exports the data described to be output received.