WO2018176765A1 - 数据传输方法、系统和装置 - Google Patents

数据传输方法、系统和装置 Download PDF

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Publication number
WO2018176765A1
WO2018176765A1 PCT/CN2017/103439 CN2017103439W WO2018176765A1 WO 2018176765 A1 WO2018176765 A1 WO 2018176765A1 CN 2017103439 W CN2017103439 W CN 2017103439W WO 2018176765 A1 WO2018176765 A1 WO 2018176765A1
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Prior art keywords
data
queue
sending
touch
receiving end
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PCT/CN2017/103439
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English (en)
French (fr)
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陈锡剑
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广州视源电子科技股份有限公司
广州视睿电子科技有限公司
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Publication of WO2018176765A1 publication Critical patent/WO2018176765A1/zh

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454—Digital output to display device ; Cooperation and interconnection of the display device with other functional units involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
    • H04N21/4363—Adapting the video or multiplex stream to a specific local network, e.g. a IEEE 1394 or Bluetooth® network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44213—Monitoring of end-user related data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8146—Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics

Definitions

  • the present invention relates to the field of computer technologies, and in particular, to a data transmission method, system and apparatus.
  • a plurality of intelligent display devices can be connected to each other through a screen-distributing device, so as to realize real-time transmission of playing data (such as audio data, video data, and/or image data, etc.) between the respective smart display devices, so that the user can pass one of the smart devices.
  • the display device views the content currently displayed by other smart display devices, so that the user can more conveniently obtain the content displayed by the smart display device.
  • the smart display device that sends the play data may be referred to as a sender, and the smart display device that receives the play data sent by other display devices may display It is called the receiving end.
  • the data receiving channel and the transmitting channel of the receiving end have unstable transmission bandwidth and low utilization rate, and the process of receiving the acknowledgement information after receiving the corresponding playing data needs to consume more time to make the data transmission efficiency in the screen transmission process. Low, it is easy to cause the receiving end to receive the playback data sent by the transmitting end for display, the technical problem of the related multimedia data jam, affecting the effect of the receiving end displaying or playing the corresponding playing data.
  • a data transmission method, system and apparatus are provided.
  • a data transmission method includes the following steps:
  • the receiving end feeding back the confirmation information to the transmitting end, detecting whether the acknowledgment data packet exists in the acknowledgment information sending queue of the receiving end; wherein the acknowledgment data packet is the acknowledgment information generated after the receiving end receives the playing data;
  • acknowledgement information transmission queue does not have an acknowledgement data packet, generate a blank data packet, and send the blank data packet to the acknowledgement information transmission queue;
  • a data transmission system comprising:
  • the detecting module is configured to: when the receiving end feeds back the acknowledgement information to the sending end, detecting whether the acknowledgement data packet exists in the acknowledgement information sending queue of the receiving end; wherein the acknowledgement data packet is a confirmation generated by the receiving end after receiving the playing data information;
  • a first generating module configured to generate a blank data packet if the acknowledgement information sending queue does not exist, and send the blank data packet to the acknowledgement information sending queue;
  • the first sending module is configured to send the queue content in the acknowledgement information sending queue to the sending end.
  • the blank data packet when the receiving end feeds back the confirmation information to the transmitting end, when detecting that the acknowledgment information sending queue of the receiving end does not have the acknowledgment data packet, the blank data packet may be generated, and the blank data packet is sent.
  • the blank data packet occupies the transmission bandwidth of the corresponding screen device, and the data transmission channel of the corresponding screen device continuously occupies the transmission bandwidth (ie, continuously turns on), can maintain the stability of the transmission bandwidth, and improve the acknowledgement packet.
  • the transmission rate improves the efficiency of receiving and playing data, avoids the occurrence of technical problems such as related multimedia data jams in the process of transmitting data display on the receiving end, and improves the effect of displaying or playing corresponding playing data at the receiving end.
  • 1 is a flow chart of a data transmission method of an embodiment
  • FIG. 2 is a schematic diagram of data transmission between a receiving end and a transmitting end of an embodiment
  • FIG. 3 is a schematic diagram of data transmission rate of an embodiment
  • FIG. 4 is a schematic structural diagram of a data transmission system of an embodiment
  • FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment.
  • FIG. 1 is a flowchart of a data transmission method according to an embodiment, which includes the following steps:
  • the playback data is sent to other display devices, so that the content of the display interface is displayed on the other display device as the transmitting end, and the receiving end is the receiving end.
  • the smart display device that displays the play data sent by the screen device to display the current display interface of the sender is the receiving end.
  • the transmitting end and the receiving end are variable.
  • the smart device is a transmitting end; in a certain period of time, if the smart display device receives the play data sent by other display devices and displays the display interface of other display devices, the smart display device is the receiving end.
  • the screen device connected between the transmitting end and the receiving end may be a device such as a USB device that can stably perform screen transmission between the transmitting end and the receiving end.
  • the receiving end may detect whether the acknowledgment data packet is detected in the acknowledgment information sending queue by detecting whether the information sending queue is empty. If the acknowledgment information sending queue is empty, it indicates that there is no acknowledgment data in the acknowledgment information sending queue. If the acknowledgment message sending queue is not empty, it indicates that there is an acknowledgment packet in the acknowledgment message sending queue.
  • the data transmission diagram between the receiving end and the transmitting end may be as shown in FIG. 2.
  • two data transmission channels may be formed between the transmitting end 51 and the receiving end 52 through the corresponding transmitting device: playing data transmission channel and confirming The information transmission channel; the transmitting end 51 sends the playing data of the current display interface of the transmitting end 51 to the receiving end 52 through the playing data transmission channel, and after receiving the playing data, the receiving end 52 generates an acknowledgment data packet, and sends the acknowledgment data packet.
  • the acknowledgment information transmission queue is transmitted to the transmitting end 51 through the acknowledgment information transmission channel, and after receiving the acknowledgment data packet fed back by the receiving end 52, the transmitting end 51 continues to transmit the corresponding playing data by using the playing data transmission channel.
  • confirmation information sending queue does not have an acknowledgement packet, generate a blank data packet. And sending the blank data packet to the acknowledgement information sending queue;
  • the receiving end does not have an acknowledgment packet (RE packet) in the acknowledgment information sending queue, generates a blank data packet (NAP packet), and sends the NAP packet to the acknowledgment information sending queue, occupying the transmission bandwidth of the acknowledgment information, so as to maintain the corresponding acknowledgment information transmission.
  • the channel is turned on to maintain the transmission rate of the above confirmation information transmission channel.
  • the receiving end 52 in the process that the receiving end 52 receives the play data and sends the acknowledgement data packet, it can enable two threads: the thread one is used to send the NAP packet and the RE packet, and implements control on the acknowledge information transmission channel.
  • Thread 2 is used to receive playback data such as multimedia data packets. When the playback data arrives, Thread 2 controls its state value to enter the queue FIFO (state data storage queue). At this time, the thread 1 can perform the outbound operation of the confirmation information sending queue.
  • the queue has a status value (there are RE packets), it is marked as an RE packet, and the content of the queue of the confirmation information sending queue is transmitted to the sending end; if there is no status value, Then, the NAP packet is sent to the above-mentioned confirmation information sending queue, and the corresponding transmission is performed.
  • the blank data packet when the receiving end feeds back the confirmation information to the transmitting end, when the acknowledgment information sending queue of the receiving end does not have the acknowledgment data packet, the blank data packet may be generated, and the blank data packet is sent.
  • the blank data packet occupies the transmission bandwidth of the corresponding screen device, and the data transmission channel of the corresponding screen device continuously occupies the transmission bandwidth (ie, continuously turns on), can maintain the stability of the transmission bandwidth, and improve the acknowledgement packet.
  • the transmission rate improves the efficiency of receiving and playing data, avoids the occurrence of technical problems such as related multimedia data jams in the process of transmitting data display on the receiving end, and improves the effect of displaying or playing corresponding playing data at the receiving end.
  • the data transmission method may further include:
  • the acknowledgment data packet is sent to the acknowledgment information transmission queue.
  • the receiving end when receiving the playback data, the receiving end generates an acknowledgment data packet, and performs corresponding transmission, so that the sending end can timely obtain the acknowledgment information that the playing data is successfully transmitted, so that the sending end can according to the acknowledgment information. Sending subsequent broadcast data to ensure the corresponding screen work successfully launch.
  • the foregoing data transmission method may further include:
  • the playback data transmission channel is kept open.
  • the play data transmission channel when there is no play data sent by the sending end in the play data transmission channel, the play data transmission channel is kept open, so as to quickly enter the transmission of the subsequent play data, the transmission time of the play data can be saved, and the transmission efficiency is improved.
  • the process of keeping the playback data transmission channel open may include:
  • Executing an interrupt callback function before the interrupt callback function returns, sending display request information to the transmitting end; wherein, after receiving the display request information, the transmitting end sends the playing data to the receiving end through the playing data transmission channel.
  • the receiving end enters the interrupt callback function, and sends the request information to the request to send the corresponding play data before the function returns, thereby ensuring that the receiving end is always in the state that the received data is ready, that is, the play data transmission channel remains open. , the efficiency of receiving the corresponding playing data by the receiving end can be further improved.
  • the method may further include:
  • the sending end receives the queue content in the confirmation information sending queue through the screen transmitting device, and after the confirmation data packet is identified in the queue content, the playing data is sent to the receiving end through the playing data transmission channel.
  • the content of the queue received by the sending end includes the NAP packet and the RE packet. If the transmitting end identifies the RE packet, the subsequent playback data needs to be sent according to the foregoing RE packet to ensure the stability of the corresponding paging operation.
  • the foregoing data transmission method may further include:
  • the touch return channel is a data channel for transmitting a touch operation read by the receiving end to the transmitting end, such as a related thread for returning touch data.
  • the receiving end may be a touch display device. When the receiving end displays the display interface of the sending end, the touch operation read by the touch screen can be transmitted back to the corresponding sending end by the screen transmitting device, and the touch operation performed by the corresponding user on the display interface of the corresponding user at the receiving end is displayed on the sending end.
  • the receiving end controls the transmission of the touch data corresponding to the touch operation by using the touch return channel, and the touch data is generally transmitted through the corresponding touch data storage queue, if the touch data storage queue is used. Not empty (touch data exists in the touch data storage queue), indicating that a touch operation is occurring at the receiving end, and the touch return channel is in an active state, if the touch data storage queue is empty (the touch data storage queue does not have touch data) , indicating that no touch action occurs at the receiving end, and the touch return channel can be controlled to enter a sleep state, so as to avoid excessively occupying the system resources of the receiving end by the touch return channel, and improving the data processing rate of the above-mentioned screen device.
  • the foregoing data transmission method may further include:
  • the touch drive of the receiving end captures the touch data, it detects whether the current touch data storage queue is empty, and if not, directly stores the touch data into the touch data storage queue.
  • the touch data may be directly stored in the touch data storage queue, so that the touch return channel controls the touch data.
  • the transmission can ensure the transmission efficiency of the above touch data, so that the receiving end receives the touch data in time, and realizes the display of the current touch operation of the transmitting end.
  • the touch return channel is activated, and the touch data is stored in the touch data storage queue.
  • the current touch data storage queue is empty, indicating that the touch return channel is in a sleep state, and the touch return channel needs to be activated at this time to ensure smoothness in the corresponding touch data transmission process.
  • the sending end may be a computer
  • the receiving end may be a smart tablet terminal
  • the computer and the smart tablet terminal are directly connected through the screen transmitting device
  • the current playing data of the computer is sent through the screen transmitting device.
  • the display (or play) of the play data in the current display interface of the computer is implemented on the smart tablet terminal, and after receiving the play data sent by the computer, the smart tablet terminal sends the RE packet to the confirmation information sending queue, if not received
  • the sent play data sends a NAP packet to the acknowledgment message sending queue, so that the corresponding data transmission channel is continuously turned on to avoid other extra time consuming.
  • the bandwidth occupation mechanism of the NAP packet is adopted, the bandwidth of the transmission process is relatively stable, and the display process of the smart tablet terminal is smooth and there is no jam.
  • the sleep wake-up mechanism may be adopted, and the touch data read by the smart tablet terminal is transmitted back to the computer for corresponding display, under the mechanism of the bandwidth occupation of the NAP packet. The same can ensure the real-time back-transmission of the above touch data, and does not interfere with the smoothness of playing data such as audio and video.
  • the data transmission rate is tested by using the traditional data transmission scheme and the data transmission scheme provided by the present invention, and the corresponding data transmission is performed.
  • the rate diagram can be as shown in Fig. 3.
  • the abscissa indicates time, the unit is s (seconds), and the ordinate indicates the transmission rate in Kb/s (kilobits per second).
  • the solid line indicates the adoption.
  • the transmission rate corresponding to the data transmission scheme provided by the present invention the broken line indicates the transmission rate corresponding to the conventional data transmission scheme. As shown in FIG.
  • the average transmission rate is about 0.5 MB/s (512 Kb/s or so), and the data transmission scheme provided by the present invention is used to generate the corresponding NAP.
  • the packet realizes the transmission of the corresponding broadcast data, the average transmission rate can reach 2MB/s (about 2014 Kb/s). It can be seen that the data transmission scheme provided by the present invention performs wired data transmission, which can effectively improve the corresponding transmission rate.
  • FIG. 4 is a schematic structural diagram of a data transmission system according to an embodiment, including:
  • the detecting module 10 is configured to detect, in the process of receiving the acknowledgement information from the receiving end, whether the acknowledgement data packet exists in the acknowledgement information sending queue of the receiving end, where the acknowledgement data packet is generated after the receiving end receives the playing data. Confirmation information;
  • the first generating module 20 is configured to generate a blank data packet if the acknowledgement information sending queue does not have an acknowledgement data packet, and send the blank data packet to the acknowledgement information sending queue;
  • the first sending module 30 is configured to send the queue content in the acknowledgement information sending queue to the sending end.
  • the data transmission system may further include:
  • a second generating module configured to receive, by using a play data transmission channel, play data sent by the sending end, and when receiving the play data, generate an acknowledgement data packet
  • a second sending module configured to send the acknowledgement data packet to the acknowledgement information sending queue.
  • the data transmission system provided by the present invention has a one-to-one correspondence with the data transmission method provided by the present invention.
  • the technical features and the beneficial effects described in the embodiments of the data transmission method are applicable to the embodiment of the data transmission system, and are hereby declared.
  • FIG. 5 is a schematic structural diagram of a data transmission apparatus according to an embodiment, including a screen transmission device 62 that is respectively connected to a receiving end 63 and a transmitting end 61;
  • the screen device 62 generates a blank data packet when the acknowledgment data packet is not present in the acknowledgment information transmission queue between the receiving end 63 and the transmitting end 62, and sends the blank data packet to the receiving end 63;
  • the blank data packet is transmitted to the acknowledgement information transmission queue at the receiving end 63.
  • the receiving end 63 may send the blank data packet to the acknowledgement information sending queue, and send the queue content in the acknowledgement information sending queue to the sending end, so that the screen device 62 generates
  • the blank data packet occupies the transmission bandwidth of the corresponding screen device, keeps the confirmation information transmission channel open, and improves the communication stability of the transmission bandwidth.
  • the above-mentioned screen device 62 may include a processor and an associated storage device.
  • the processor may detect whether an acknowledgment packet exists in the acknowledgment information transmission queue between the receiving end 63 and the transmitting end 61, and confirm the information sending queue.
  • the acknowledgment data packet exists, the generated blank data packet is sent to the receiving end 63, and other states between the receiving end 63 and the transmitting end 61 can also be detected; the storage device can be stored for detecting between the receiving end 63 and the transmitting end 61.
  • Related instructions for each state may be performed by the acknowledgment information transmission queue between the receiving end 63 and the transmitting end 61.
  • the data transmission apparatus may generate a blank data packet to be sent to the receiving end 63 when the acknowledgment data packet is not present in the acknowledgment information transmission queue between the receiving end 63 and the transmitting end 62, so that the receiving end 63 can Sending the blank data packet to the acknowledgement information sending queue, so that the blank data packet occupies the transmission bandwidth of the corresponding screen device, so as to maintain the stability of the transmission bandwidth and improve the transmission rate of the acknowledgement packet, thereby improving the receiving end receiving the broadcast data. effectiveness.
  • two data transmission channels can be formed between the transmitting end 61 and the receiving end 63 through the screen device 62: a play data transmission channel and a confirmation information transmission channel; the transmitting end 61 passes The play data transmission channel sends the play data of the current display interface of the sending end 61 to the receiving end 63. After receiving the play data, the receiving end 63 generates an acknowledgment data packet, and sends the acknowledgment data packet to the acknowledgment information sending queue to confirm the information. The transmission channel is transmitted to the transmitting end 61. After receiving the acknowledgment data packet fed back by the receiving end 63, the transmitting end 61 continues to transmit the corresponding playing data by using the playing data transmission channel.
  • the above-mentioned screen device 62 detects whether there is playback data sent by the transmitting end in the playback data transmission channel. If there is no playback data sent by the transmitting end in the playback data transmission channel, the screen device 62 can keep the playback data transmission channel open. In order to quickly enter the transmission of subsequent playback data, the transmission time of the playback data is saved, and the transmission efficiency is improved.
  • the above-mentioned screen device may execute an interrupt callback function, and send display request information to the transmitting end to keep the playback data transmission channel open before the interrupt callback function returns.
  • the sending end may send the playing data to the receiving end through the playing data transmission channel.
  • the above-mentioned screen device can detect whether the touch data storage queue is empty, and if the touch data storage queue is empty, control the touch return channel to enter a sleep state.
  • the touch return channel is a data channel for transmitting a touch operation read by the receiving end to the transmitting end, such as a related thread for returning touch data.
  • the receiving end may be a touch display device, and when the receiving end displays the sending end display interface, the touch operation read by the touch screen may be transmitted back to the corresponding sending end by the screen transmitting device, and the corresponding user is displayed at the receiving end on the transmitting end. It displays the touch operation performed by the interface.
  • the touch data storage queue is not empty (the touch data storage queue has touch data), it indicates that a touch operation is occurring at the receiving end, and the touch return channel is in an active state, if the touch data storage queue is Empty (the touch data storage queue does not have touch data), indicating that no touch action occurs at the receiving end.
  • the screen device can control the touch return channel to enter the sleep state, so as to avoid excessively occupying the system resources of the receiving end by the touch return channel. , to improve the data processing rate of the above-mentioned screen device.
  • the above-mentioned screen device may include a processor; the processor is configured to detect whether an acknowledgment data packet exists in the acknowledgment information transmission queue between the receiving end and the transmitting end, and the acknowledgment data packet exists in the acknowledgment information sending queue. When a blank packet is generated, it is sent to the receiving end.
  • the above processor may be a control device having a data processing function.
  • the related detection and control work between the receiving end and the transmitting end is performed by the foregoing processor, which is beneficial to ensure the accuracy of the detection or control work therein.

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Abstract

本发明涉及一种数据传输方法、系统和装置。上述数据传输方法，包括如下步骤：在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；将所述确认信息发送队列中的队列内容发送至发送端。本发明提供的数据传输方法、系统和装置可以提高相应播放数据和确认数据包的传输效率，从而提高接收端显示或者播放相应播放数据的效果。

Description

数据传输方法、系统和装置 技术领域
本发明涉及计算机技术领域，特别是涉及一种数据传输方法、系统和装置。
背景技术
多个智能显示设备之间可以通过传屏设备相互连接，实现各个智能显示设备之间播放数据(如音频数据、视频数据和/或图像数据等等)的实时传输，使用户可以通过其中一个智能显示设备观看到其他智能显示设备当前所显示的内容，使用户可以更为便利的获取上述智能显示设备所显示的内容。
在智能显示设备通过传屏设备接收其他显示设备发送的播放数据进行显示的过程中，发送播放数据的智能显示设备可以称为发送端，接收其他显示设备发送的播放数据进行显示的智能显示设备可以称为接收端。传统方案中，接收端的数据接收通道和发送通道传输带宽不稳定，利用率低，同时接收端在接收相应播放数据后反馈确认信息的过程需要消耗较多的时间使传屏过程中的数据传输效率低，容易引起接收端接收发送端发送的播放数据进行显示的过程中，相关多媒体数据卡顿的技术问题，影响接收端显示或者播放相应播放数据的效果。
发明内容
基于此，有必要针对传统方案使智能显示设备间数据传输效率低，容易引起接收端接收发送端发送的播放数据进行显示的过程中，多媒体数据卡顿的技术问题，影响接收端显示质量问题，提供一种数据传输方法、系统和装置。
一种数据传输方法，包括如下步骤：
在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；
将所述确认信息发送队列中的队列内容发送至发送端。
一种数据传输系统，包括：
检测模块，用于在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
第一生成模块，用于若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；
第一发送模块，用于将所述确认信息发送队列中的队列内容发送至发送端。
上述数据传输方法、系统和装置，在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列不存在确认数据包时，可以生成空白数据包，并将所述空白数据包发送至确认信息发送队列，使上述空白数据包占用相应传屏设备的传输带宽，相应传屏设备的数据传输通道持续占用传输带宽(即持续开启)，可以保持传输带宽的稳定，提高确认数据包的传输速率，从而提升接收播放数据的效率，避免在接收端进行发送端播放数据显示的过程中，相关多媒体数据卡顿等技术问题的出现，提高了接收端显示或者播放相应播放数据的效果。
附图说明
图1为一个实施例的数据传输方法流程图；
图2为一个实施例的接收端与发送端之间数据传输示意图；
图3为一个实施例的数据传输速率示意图；
图4为一个实施例的数据传输系统结构示意图；
图5为一个实施例的数据传输装置结构示意图。
具体实施方式
下面结合附图对本发明的数据传输方法、系统和装置的具体实施方式作详细描述。
参考图1，图1所示为一个实施例的数据传输方法流程图，包括如下步骤：
S10，在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
在智能显示设备通过传屏设备连接其他显示设备，进行传屏的过程中，发送播放数据至其他显示设备，使其显示界面的内容在其他显示设备显示的智能显示设备为发送端，接收发送端通过传屏设备发送的播放数据以对发送端当前的显示界面进行显示的智能显示设备为接收端。在多个智能显示设备的传屏过程中，发送端和接收端是可变的，如某个智能显示设备当前将其显示界面的播放数据发送至其他显示设备进行显示，则此时，该智能显示设备为发送端；在某时间段，若该智能显示设备接收其他显示设备发送的播放数据，显示其他显示设备的显示界面时，这个智能显示设备则为接收端。连接发送端和接收端之间的传屏设备可以为USB设备等可以在发送端和接收端之间进行稳定传屏的设备。上述步骤中，接收端可以通过检测确认信息发送队列是否为空，实现确认信息发送队列中是否存在确认数据包的检测，若上述确认信息发送队列为空，表明确认信息发送队列中不存在确认数据包，若上述确认信息发送队列不为空，则表明确认信息发送队列中存在确认数据包。
上述接收端与发送端之间数据传输示意图可以如图2所示，如图2，通过相应传输设备在发送端51和接收端52之间可以形成两条数据传输通道：播放数据传输通道和确认信息传输通道；发送端51通过播放数据传输通道向接收端52发送该发送端51当前显示界面的播放数据，接收端52在接收到上述播放数据后，生成确认数据包，将上述确认数据包发送至确认信息发送队列通过确认信息传输通道传输给发送端51，发送端51在接收到接收端52反馈的确认数据包后，利用播放数据传输通道继续进行相应播放数据的发送。
S20，若所述确认信息发送队列不存在确认数据包，则生成空白数据包， 并将所述空白数据包发送至确认信息发送队列；
接收端在确认信息发送队列不存在确认数据包(RE包)，生成空白数据包(NAP包)，将NAP包发送至确认信息发送队列，占用确认信息的传输带宽，以保持相应的确认信息传输通道开启，保持上述确认信息传输通道的传输速率。
参考图2所示，在上述接收端52接收播放数据和发送确认数据包的过程中，其可以启用两个线程：线程一用于发送NAP包和RE包，实现对确认信息传输通道的控制，线程二用于接收多媒体数据包等播放数据。当播放数据到来时，线程二控制其状态值进入队列FIFO(状态数据存储队列)。此时线程一可以进行确认信息发送队列的出队列操作，如果队列有状态值(存在RE包)，则标记为RE包，将确认信息发送队列的队列内容传输至发送端；如果没有状态值，则向上述确认信息发送队列发送NAP包，进行相应的传输。
S30，将所述确认信息发送队列中的队列内容发送至发送端。
本实施例提供的数据传输方法，在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列不存在确认数据包时，可以生成空白数据包，并将所述空白数据包发送至确认信息发送队列，使上述空白数据包占用相应传屏设备的传输带宽，相应传屏设备的数据传输通道持续占用传输带宽(即持续开启)，可以保持传输带宽的稳定，提高确认数据包的传输速率，从而提升接收播放数据的效率，避免在接收端进行发送端播放数据显示的过程中，相关多媒体数据卡顿等技术问题的出现，提高了接收端显示或者播放相应播放数据的效果。
在一个实施例中，上述数据传输方法，还可以包括：
通过播放数据传输通道接收发送端发送的播放数据，在接收到所述播放数据时，生成确认数据包；
将所述确认数据包发送至确认信息发送队列。
本实施例中，接收端在接收到播放数据时，生成确认数据包，并进行相应的发送，使发送端可以及时获取其播放数据得到顺利传输的确认信息，以便发送端可以根据这一确认信息进行后续播放数据的发送，保证了相应传屏工作的 顺利开展。
作为一个实施例，上述数据传输方法，还可以包括：
若播放数据传输通道中不存在发送端发送的播放数据，保持所述播放数据传输通道打开。
本实施例在播放数据传输通道中不存在发送端发送的播放数据时，保持所述播放数据传输通道打开，以便快速进入后续播放数据的传输，可以节省播放数据的传输时间，提高其传输效率。
作为一个实施例，上述保持所述播放数据传输通道打开的过程可以包括：
执行中断回调函数，在所述中断回调函数返回之前，向发送端发送显示请求信息；其中，发送端接收所述显示请求信息后，通过所述播放数据传输通道向接收端发送播放数据。
本实施例中，接收端进入中断回调函数，在函数返回之前再次向发送显示请求信息以请求发送相应的播放数据，从而保证接收端一直处于接收数据准备就绪的状态，即播放数据传输通道保持开启，可以进一步提高接收端接收相应播放数据的效率。
在一个实施例中，上述将所述确认信息发送队列中的内容通过传屏设备发送至发送端的过程之后，还可以包括：
发送端通过传屏设备接收确认信息发送队列中的队列内容，在所述队列内容中识别到确认数据包后，通过所述播放数据传输通道向接收端发送播放数据。
本实施例中，发送端接收的队列内容包括NAP包和RE包，若发送端从中识别到RE包，需要根据上述RE包进行后续播放数据的发送，以保证相应传屏工作的稳定性。
在一个实施例中，上述数据传输方法还可以包括：
检测触摸数据存放队列是否为空，若所述触摸数据存放队列为空，则控制触摸回传通道进入休眠状态。
上述触摸回传通道为用于将接收端读取的触摸操作回传至发送端的数据通道，如用于回传触摸数据的相关线程等等。上述接收端可以为触摸显示设备， 接收端显示发送端显示界面时，其触摸屏所读取的触摸操作可以通过传屏设备回传至相应的发送端，在上述发送端显示相应用户在接收端对其显示界面所进行的触摸操作。
在上述触摸操作的传输过程中，接收端通过触摸回传通道控制上述触摸操作所对应的触摸数据的传输，上述触摸数据通常通过相应的触摸数据存放队列进行相应的传输，若上述触摸数据存放队列不为空(触摸数据存放队列存在触摸数据)，表明在接收端此时正在发生触摸操作，触摸回传通道处于激活状态，若上述触摸数据存放队列为空(触摸数据存放队列不存在触摸数据)，表明此时接收端没有发生触摸动作，可以控制触摸回传通道进入休眠状态，以避免触摸回传通道过多占用接收端的系统资源，提高上述传屏设备的数据处理速率。
作为一个实施例，上述数据传输方法，还可以包括：
接收端的触摸驱动捕捉到触摸数据时，检测当前的触摸数据存放队列是否为空，若否，则直接将所述触摸数据存入触摸数据存放队列。
本实施例中，若当前的触摸数据存放队列是不为空，表明相应的触摸回传通道处于工作状态，可以直接将触摸数据存入触摸数据存放队列，使触摸回传通道控制上述触摸数据的传输，可以保证上述触摸数据的传输效率，使接收端及时接收到上述触摸数据，实现对发送端当前触摸操作的显示。
作为一个实施例，若当前的触摸数据存放队列为空，则激活所述触摸回传通道，将所述触摸数据存入触摸数据存放队列。
本实施例中，当前的触摸数据存放队列为空，表明触摸回传通道处于休眠状态，此时需要对触摸回传通道进行激活，以保证相应触摸数据传输过程中的顺利性。
在一个实施例中，某一时间段内，发送端可以为计算机，接收端可以为智能平板终端，计算机和智能平板终端直接通过传屏设备连接，将上述计算机当前的播放数据通过传屏设备发送至智能平板终端，在智能平板终端上实现计算机当前显示界面内播放数据的显示(或者播放)，智能平板终端在接收到计算机发送的播放数据后，发送RE包至确认信息发送队列，若没有接收到计算机 发送的播放数据，则发送NAP包至确认信息发送队列，使相应的数据传输通道持续开启，避免产生其他额外消耗时间。上述播放数据的传输过程中，采用NAP包带宽占用机制，传输过程带宽相对稳定，智能平板终端的显示过程流畅，无卡顿。
智能平板终端显示计算机显示界面时，若在智能平板终端进行触摸操作，可以采用休眠唤醒机制，将智能平板终端读取的触摸数据回传至计算机进行相应的显示，在NAP包带宽占用的机制下，同样可以保证上述触摸数据的实时回传，并且不干扰音视频等播放数据的播放流畅度。
本实施例在上述计算机和智能平板终端传屏过程(兼随机的触摸操作)中，分别采用传统数据传输方案，以及本发明提供的数据传输方案进行数据传输速率的测试，两者对应的数据传输速率示意图可以如图3所示，图3中，横坐标表示时间，单位为s(秒)，纵坐标表示传输速率，单位为Kb/s(千位每秒)，图中，实线表示采用本发明提供的数据传输方案所对应的传输速率，虚线表示采用传统数据传输方案所对应的传输速率。如图3所示，采用传统数据传输方案，不带NAP包传输播放数据时，平均传输速率约为0.5MB/s(512Kb/s左右)，采用本发明提供的数据传输方案，生成相应的NAP包实现相应播放数据的传输时，平均传输速率可达2MB/s(2014Kb/s左右)，可见，采用本发明提供的数据传输方案进行有线数据传输，可以有效提高相应的传输速率。
参考图4所示，图4为一个实施例的数据传输系统结构示意图，包括：
检测模块10，用于在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
第一生成模块20，用于若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；
第一发送模块30，用于将所述确认信息发送队列中的队列内容发送至发送端。
在一个实施例中，上述数据传输系统，还可以包括：
第二生成模块，用于通过播放数据传输通道接收发送端发送的播放数据，在接收到所述播放数据时，生成确认数据包；
第二发送模块，用于将所述确认数据包发送至确认信息发送队列。
本发明提供的数据传输系统与本发明提供的数据传输方法一一对应，在所述数据传输方法的实施例阐述的技术特征及其有益效果均适用于数据传输系统的实施例中，特此声明。
参考图5所示，图5为一个实施例的数据传输装置结构示意图，包括分别与接收端63和发送端61进行通信连接的传屏设备62；
所述传屏设备62在检测到接收端63和发送端62之间的确认信息发送队列中不存在确认数据包时，生成空白数据包，并将所述空白数据包发送至接收端63；所述空白数据包在接收端63中被传输至确认信息发送队列。
上述接收端63接收所述空白数据包后，可以将所述空白数据包发送至确认信息发送队列，并将所述确认信息发送队列中的队列内容发送至发送端，以使传屏设备62产生的空白数据包占用相应传屏设备的传输带宽，保持确认信息传输通道开启，提高传输带宽的通信稳定性。
上述传屏设备62可以包括处理器和相关的存储设备，通常情况下，上述处理器可以检测接收端63和发送端61之间的确认信息发送队列中是否存在确认数据包，在确认信息发送队列中存在确认数据包时，生成空白数据包发送至接收端63，还可以检测接收端63和发送端61之间的其他状态；上述存储设备可以存储用于检测接收端63和发送端61之间的各个状态的相关指令。
本实施例提供的数据传输装置，可以在检测到接收端63和发送端62之间的确认信息发送队列中不存在确认数据包时，生成空白数据包发送至接收端63，使接收端63可以将上述空白数据包发送至确认信息发送队列，从而通过上述空白数据包占用相应传屏设备的传输带宽，以保持传输带宽的稳定，提高确认数据包的传输速率，从而提升接收端接收播放数据的效率。
在一个实施例中，发送端61和接收端63之间可以通过传屏设备62形成两条数据传输通道：播放数据传输通道和确认信息传输通道；发送端61通过 播放数据传输通道向接收端63发送该发送端61当前显示界面的播放数据，接收端63在接收到上述播放数据后，生成确认数据包，将上述确认数据包发送至确认信息发送队列通过确认信息传输通道传输给发送端61，发送端61在接收到接收端63反馈的确认数据包后，利用播放数据传输通道继续进行相应播放数据的发送。
上述传屏设备62检测上述播放数据传输通道中是否存在发送端发送的播放数据，若播放数据传输通道中不存在发送端发送的播放数据，传屏设备62可以保持所述播放数据传输通道打开，以便快速进入后续播放数据的传输，节省播放数据的传输时间，提高其传输效率。
作为一个实施例，上述传屏设备可以执行中断回调函数，在所述中断回调函数返回之前，向发送端发送显示请求信息，使上述播放数据传输通道保持打开。
上述发送端接收所述显示请求信息后，可以通过所述播放数据传输通道向接收端发送播放数据。
在一个实施例中，上述传屏设备可以检测触摸数据存放队列是否为空，若所述触摸数据存放队列为空，则控制触摸回传通道进入休眠状态。
上述触摸回传通道为用于将接收端读取的触摸操作回传至发送端的数据通道，如用于回传触摸数据的相关线程等等。上述接收端可以为触摸显示设备，接收端显示发送端显示界面时，其触摸屏所读取的触摸操作可以通过传屏设备回传至相应的发送端，在上述发送端显示相应用户在接收端对其显示界面所进行的触摸操作。
本实施例中，若上述触摸数据存放队列不为空(触摸数据存放队列存在触摸数据)，表明在接收端此时正在发生触摸操作，触摸回传通道处于激活状态，若上述触摸数据存放队列为空(触摸数据存放队列不存在触摸数据)，表明此时接收端没有发生触摸动作，此时传屏设备可以控制触摸回传通道进入休眠状态，以避免触摸回传通道过多占用接收端的系统资源，提高上述传屏设备的数据处理速率。
在一个实施例中，上述传屏设备可以包括处理器；所述处理器用于检测接收端和发送端之间的确认信息发送队列中是否存在确认数据包，在确认信息发送队列中存在确认数据包时，生成空白数据包发送至接收端。
上述处理器可以为具备数据处理功能的控制设备。本实施例通过上述处理器进行接收端和发送端之间的相关检测和控制工作，有利于保证其中检测或控制工作的准确性。
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种数据传输方法，其特征在于，包括如下步骤：
    在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
    若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；
    将所述确认信息发送队列中的队列内容发送至发送端。
  2. 根据权利要求1所述的数据传输方法，其特征在于，还包括：
    通过播放数据传输通道接收发送端发送的播放数据，在接收到所述播放数据时，生成确认数据包；
    将所述确认数据包发送至确认信息发送队列。
  3. 根据权利要求2所述的数据传输方法，其特征在于，还包括：
    若播放数据传输通道中不存在发送端发送的播放数据，保持所述播放数据传输通道打开。
  4. 根据权利要求3所述的数据传输方法，其特征在于，所述保持所述播放数据传输通道打开的过程包括：
    执行中断回调函数，在所述中断回调函数返回之前，向发送端发送显示请求信息；其中，发送端接收所述显示请求信息后，通过所述播放数据传输通道向接收端发送播放数据。
  5. 根据权利要求1所述的数据传输方法，其特征在于，所述将所述确认信息发送队列中的内容通过传屏设备发送至发送端的过程之后，还包括：
    发送端通过传屏设备接收确认信息发送队列中的队列内容，在所述队列内容中识别到确认数据包后，通过所述播放数据传输通道向接收端发送播放数据。
  6. 根据权利要求1所述的数据传输方法，其特征在于，还包括：
    检测触摸数据存放队列是否为空，若所述触摸数据存放队列为空，则控制触摸回传通道进入休眠状态。
  7. 根据权利要求6所述的数据传输方法，其特征在于，还包括：
    接收端的触摸驱动捕捉到触摸数据时，检测当前的触摸数据存放队列是否为空，若否，则直接将所述触摸数据存入触摸数据存放队列。
  8. 根据权利要求7所述的数据传输方法，其特征在于，若当前的触摸数据存放队列为空，则激活所述触摸回传通道，将所述触摸数据存入触摸数据存放队列。
  9. 一种数据传输系统，其特征在于，包括：
    检测模块，用于在接收端向发送端反馈确认信息的过程中，检测接收端的确认信息发送队列中是否存在确认数据包；其中，所述确认数据包为接收端接收到播放数据后生成的确认信息；
    第一生成模块，用于若所述确认信息发送队列不存在确认数据包，则生成空白数据包，并将所述空白数据包发送至确认信息发送队列；
    第一发送模块，用于将所述确认信息发送队列中的队列内容发送至发送端。
  10. 根据权利要求9所述的数据传输系统，其特征在于，还包括：
    第二生成模块，用于通过播放数据传输通道接收发送端发送的播放数据，在接收到所述播放数据时，生成确认数据包；
    第二发送模块，用于将所述确认数据包发送至确认信息发送队列。
PCT/CN2017/103439 2017-03-28 2017-09-26 数据传输方法、系统和装置 WO2018176765A1 (zh)

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