WO2016202238A1 - 一种无线传屏方法、扩展设备和无线传屏系统 - Google Patents

一种无线传屏方法、扩展设备和无线传屏系统 Download PDF

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Publication number
WO2016202238A1
WO2016202238A1 PCT/CN2016/085709 CN2016085709W WO2016202238A1 WO 2016202238 A1 WO2016202238 A1 WO 2016202238A1 CN 2016085709 W CN2016085709 W CN 2016085709W WO 2016202238 A1 WO2016202238 A1 WO 2016202238A1
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Prior art keywords
screen display
data
touch
source device
module
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PCT/CN2016/085709
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English (en)
French (fr)
Inventor
刘荣
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广州视睿电子科技有限公司
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Priority to US16/094,941 priority Critical patent/US10922041B2/en
Publication of WO2016202238A1 publication Critical patent/WO2016202238A1/zh

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1454Digital 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487Interaction 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
    • G06F3/0488Interaction 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
    • G06F3/04883Interaction 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 for inputting data by handwriting, e.g. gesture or text
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2370/00Aspects of data communication
    • G09G2370/16Use of wireless transmission of display information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10Small scale networks; Flat hierarchical networks
    • H04W84/12WLAN [Wireless Local Area Networks]

Definitions

  • the invention belongs to the technical field of computer information processing, and in particular relates to a wireless screen transmission method, an extension device and a wireless screen transmission system.
  • the screen transmission technology mainly realizes that the content and sound displayed on the screen of the source device are synchronized to the display end of the projector, the television and the conference tablet for display.
  • the advantage of the computer is that the processing capability is strong, the operation is convenient, and it is easy to obtain from the network.
  • a large number of entertainment resources such as video, text, pictures and games, but the sound effects and screen viewing effects of the computer are much lower than the flat-panel TV.
  • the wireless screen technology can just combine the advantages of both.
  • the existing transmission scheme can only transmit the audio and video signals to the display terminal unidirectionally from the source device, and the signal at the display end cannot be transmitted back to the source device.
  • the interpreter needs to pass The operation of the PPT by the source device inevitably requires moving back and forth between the source device and the display terminal, which affects the effect of the demonstration and reduces the efficiency of the demonstration.
  • the existing conference tablet transmits video signals through VGA, HDMI, etc., and connects the touch panel to the source device through the USB data cable, but the cable is transmitted through the USB cable.
  • VGA video signals
  • HDMI etc.
  • the cable is transmitted through the USB cable.
  • additional data lines need to be connected, and the placement of the computer and the display end are limited by the data lines, and the operation is cumbersome and the convenience is greatly reduced.
  • the technical problem to be solved by the present invention is to provide a wireless screen transmission method, an extension device, and a wireless screen transmission system, which realizes back-to-back transmission of touch data on a display end by wireless, thereby improving operation flexibility and convenience.
  • a wireless transmission method of the present invention includes:
  • the touch data includes one or more of a number of touched points, a state of the touched point, a coordinate of the touched point, and a pressure value of the touched point.
  • the method further includes:
  • Detecting whether the screen display data includes a display of a preset file type if yes, receiving a gesture signal sent by the touch screen display end through a wireless network; wherein the gesture signal is the touch screen display end Performing gesture recognition on the touch data;
  • the method further includes:
  • the screen display data includes a display of a preset file type; if yes, receiving a gesture signal sent by the touch screen display end by using a wireless network; the gesture signal is the touch screen display end
  • the touch data is obtained for gesture recognition;
  • the predetermined file type is preferably a PPT.
  • the invention also provides an expansion device, including
  • a first receiving module configured to receive screen display data and audio data intercepted by the source device
  • a first sending module configured to send the screen display data and the audio data to a touch screen display end through a wireless network, and display the screen display data and the audio data by using the touch screen display end;
  • a second receiving module configured to receive, by using a wireless network, touch data generated by the touch screen display end
  • the second sending module sends the touch data to the source device, and performs an operation corresponding to the touch data by using the source device.
  • the touch data includes one or more of a number of touched points, a state of the touched point, a coordinate of the touched point, and a pressure value of the touched point.
  • the calculation method of the coordinates of the touch point is:
  • the size of the display area in the touch screen display end is linearly scaled, and the coordinates of the touch point are calculated.
  • the expansion device further includes:
  • a detecting module configured to detect whether the screen display data includes a display of a preset file type
  • a third receiving module configured to receive, by the wireless network, a gesture signal sent by the touch screen display end when the screen display data includes a display of a preset file type; wherein the gesture signal is the The touch screen display end performs gesture recognition on the touch data;
  • a third sending module configured to send the gesture signal to the source device, and perform an operation corresponding to the gesture signal by using the source device to simulate a button event by using an operating system.
  • the expansion device further includes:
  • a detecting module configured to detect whether the screen display data includes a display of a preset file type
  • a third receiving module configured to receive, by the wireless network, a gesture signal sent by the touch screen display end when the screen display data includes a display of a preset file type; wherein the gesture signal is the The touch screen display end performs gesture recognition on the touch data;
  • a third sending module configured to acquire a button event corresponding to the gesture signal, send the button event to the source device by using a keyboard protocol, and respond to the button event by the source device.
  • the invention also provides a wireless screen transmission system, comprising a source device, an extension device and a touch screen display terminal;
  • the source device includes an intercepting module and an execution module;
  • the expansion device includes a first receiving module, a second sending module, a first sending module, and a second receiving module;
  • the touch screen display end comprises a display module and a touch data collecting module;
  • the intercepting module is configured to intercept screen display data and audio data of the source device, and send the data to the extended device;
  • the first receiving module is configured to receive the screen display data and the audio data
  • the first sending module is configured to send the screen display data and the audio data to the touch screen display end through a wireless network
  • the display module is configured to display the screen display data and the audio data
  • a touch data acquisition module configured to collect touch data generated by the touch screen display end, and send the touch data to the extended device
  • the second receiving module is configured to receive the touch data by using a wireless network
  • the second sending module is configured to send the touch data to the source device
  • the execution module is configured to perform an operation corresponding to the touch data. Compared with the prior art, the present invention has the following advantages:
  • the invention provides a wireless screen transmission method, an extension device and a wireless screen transmission system, and an extension device is externally connected to the source device, and the screen display data and the audio data of the source device are wirelessly transmitted to the touch screen through the extension device.
  • the display end performs display to realize the wireless screen transmission function, and can feed the touch data of the touch screen display end to the source end device through the wireless network, thereby realizing the touch operation from the display end to the source end device, thereby greatly improving the flexibility and convenience of operation. Sex.
  • FIG. 1 is a flow chart of an embodiment of a wireless screen method provided by the present invention.
  • FIG. 2 is a schematic structural diagram of an embodiment of an extension device provided by the present invention.
  • FIG. 3 is a schematic structural diagram of an embodiment of a wireless screen transmission system provided by the present invention.
  • FIG. 1 a flow chart of one embodiment of a wireless screen method provided by the present invention.
  • the wireless screen method includes steps S1 to S4:
  • the expansion device is a USB Dongle (USB dongle), and the expansion device is provided with a USB interface module, an MPU (Microprocessor Unit), a wireless communication module, and a RAM (Random-Access Memory, random). Access memory), NAND FLASH, NAND flash, buttons and indicators.
  • the expansion device is connected to the source device of the source device through the USB interface.
  • the computer is used as the source device in the following embodiments, those skilled in the art may understand that the source device may be a computer, a mobile phone, and The invention is not limited by the present invention, and those skilled in the art can select according to actual needs.
  • the expansion device is connected to the conference tablet (touch screen display terminal) through a wireless communication module, and the wireless communication module is a WIFI (WIreless-Fidelity) module, and the extension device establishes a socket through the WIFI and the conference tablet. Internet connection.
  • the source device After the expansion device is inserted into the source device, the source device automatically runs an application software (Application, APP), and intercepts the current screen display data and audio data by using the application software, and displays the data on the screen. And the audio data is sent to the extension device.
  • application software Application, APP
  • the screen display data and the audio data are sent to the touch screen display end through a wireless network, and the screen display data and the audio data are displayed through the touch screen display end.
  • the extension device forwards the screen display data and the audio data received from the source device to the conference tablet, and the conference tablet decodes and displays the received audio and video data.
  • the touch screen display terminal monitors the touch event by running the application software, when When a touch event occurs, the generated touch data is acquired, and the touch data is packaged in a preset format and transmitted to the extended device.
  • the touch data includes one or more of a number of touched points, a state of the touched point, a coordinate of the touched point, and a pressure value of the touched point.
  • the coordinates of the touch point include a horizontal axis coordinate x and a vertical axis coordinate y. Since the resolution of the touch screen display end and the source end device are different, the coordinates of the touch point may pass the following in practical applications.
  • the method performs calculation, and linearly scales according to the size of the display area of the touch screen display end of the screen display data to achieve matching of the touch position and the display position.
  • the resolution of the touch display terminal is 1000*500
  • the screen resolution of the source device is 500*500.
  • the touch screen display end displays the screen display data of the source device
  • the touch screen displays The display area of the end is 500*500 in the middle of the screen.
  • Two 250*500 black edges will appear on both sides of the screen, and the vertices in the upper left corner of the display end are used as the coordinate origin. If the current touch point is at the touch display end, the coordinates are ( 250, 0), the position of the actual click is equivalent to the (0, 0) point of the source device, and the conversion of the coordinates can be calculated by linear scaling.
  • the extension device when the extension device receives the touch data, the extension device unpacks the touch data, and then follows a USB HID (Human Interface Device) multi-touch protocol.
  • the touch data is repackaged, and the touch data of the USB HID multi-touch data format is sent to the source device through the USB interface.
  • Receiving, by the source device, the touch event is transmitted to the operating system by the source device, and the touch device uses the standard USB HID touch device protocol. The event responds to operate the source device on the conference tablet.
  • a USB HID Human Interface Device
  • the wireless screen method further includes steps S5 and S6:
  • the system display API Application Programming Interface
  • the system display API Application Programming Interface
  • the API interface can be used to monitor whether the PPT software is running to determine whether the source device is currently playing the PPT.
  • the touch data is not directly returned, and the touch data is gesture-recognized by the software in the touch screen display end, and the recognized gesture signal is sent to the extended device.
  • S6 Send the gesture signal to the source device, and perform an operation corresponding to the gesture signal by using the source device to simulate a button event by using an operating system.
  • the extension device after receiving the gesture signal recognized by the touch screen display end, forwards the gesture signal to the source device through the USB interface.
  • the source device may perform an operation corresponding to the gesture signal by performing a table lookup, for example, when the gesture signal is swiping to the left, and the corresponding operation is to turn the PPT backward, the gesture signal.
  • the wireless screen method further includes steps S51 and S61:
  • step S51 detecting whether the screen display data includes a display of a preset file type; if yes, receiving a gesture signal sent by the touch screen display end by using a wireless network; the gesture signal is the touch screen display end Gesture recognition is performed on the touch data.
  • the step S51 is the same as the step S5 described above, and the related description in step S5 can be referred to, and details are not described herein again.
  • the extension device after receiving the gesture signal recognized by the touch panel display end, the extension device does not directly send the gesture signal to the source device, but first encapsulates the gesture signal by using a keyboard protocol, and then sends the gesture signal to the source device directly.
  • the button event is sent to the source device through the extension device by means of a USB HID keyboard, and the source device directly performs a button operation.
  • the automatic switching of the PPT mode is realized, and the operation of the source device PPT is realized by the gesture function, thereby effectively preventing the misoperation and helping to improve the user experience.
  • the present invention can also be set by the application software of the source device to perform the switching of the PPT mode.
  • whether the touch data backhaul is set may be set by software of the source device, where the wireless screen method further includes:
  • the touch data is controlled.
  • the touch display terminal will not collect the touch data or discard the collected touch data.
  • FIG. 2 a schematic structural diagram of an embodiment of an extension device provided by the present invention
  • the content of the extension device provided in this embodiment corresponds to the wireless transmission method in the foregoing embodiment, and is not detailed in this embodiment.
  • the description refer to the related description in the foregoing embodiment.
  • the expansion device includes an interface module 110 and a wireless module 120.
  • the interface module 110 is preferably a USB interface module
  • the wireless module 120 is preferably a WIFI module.
  • the interface module 110 includes a first receiving module 111 and a second sending module 112, the wireless module 120 includes a first sending module 121 and a second receiving module 122;
  • the first receiving module 111 is configured to receive screen display data and audio data intercepted by the source device;
  • the first sending module 121 is configured to send the screen display data and the audio data to a touch screen display end through a wireless network, and perform, by using the touch screen display end, the screen display data and the audio data.
  • the second receiving module 122 is configured to receive, by using a wireless network, touch data generated by the touch screen display end, where the touch data includes the number of touched points, the state of the touched point, the coordinates of the touched point, and the touched point. One or more of the pressure values.
  • the second sending module 112 sends the touch data to the source device, and performs operations corresponding to the touch data by using the source device.
  • the expansion device further includes a detection module.
  • the detecting module is configured to detect whether the screen display data includes a display of a preset file type
  • the wireless module further includes a third receiving module, and the interface module further includes a third sending module.
  • the third receiving module is configured to receive, by the wireless network, a gesture signal sent by the touch screen display end when the screen display data includes a display of a preset file type; wherein the gesture signal is The touch screen display end performs gesture recognition on the touch data;
  • the third sending module is configured to send the gesture signal to the source device, and perform an operation corresponding to the gesture signal by using the operating device to simulate a button event by using the source device.
  • the third sending module after receiving the gesture signal recognized by the touch panel display end, does not directly send the signal to the source device, but first acquires a button event corresponding to the gesture signal, and then The button event is sent to the source device through a keyboard protocol, and the source device responds to the button event.
  • FIG. 3 it is a schematic structural diagram of an embodiment of a wireless screen transmission system according to an embodiment of the present invention; the essence of the wireless screen transmission system provided by this embodiment corresponds to the wireless screen transmission method in the foregoing embodiment. For details not described in this embodiment, refer to the related description in the foregoing embodiments.
  • the wireless screen system includes a source device 200, an extension device 100, and a touch screen display terminal 300;
  • the source device 200 includes an intercepting module 201 and an executing module 202.
  • the expanding device 100 includes an interface module 110 and a wireless module 120.
  • the interface module 110 includes a first receiving module 111 and a second sending module 112.
  • the module 120 includes a first sending module 121 and a second receiving module 122;
  • the touch screen display terminal 300 includes a display module 301 and a touch data collection module 302;
  • the intercepting module 201 is configured to intercept screen display data and audio data of the source device 200, and send the data to the expansion device 100;
  • the first receiving module 111 is configured to receive the screen display data and the audio data
  • the first sending module 121 is configured to send the screen display data and the audio data to the touch screen display terminal 300 through a wireless network;
  • the display module 301 is configured to display the screen display data and the audio data
  • the touch data collection module 302 is configured to collect the touch data generated by the touch screen display terminal 300, and send the touch data to the expansion device 100;
  • the second receiving module 122 is configured to receive the touch data by using a wireless network.
  • the second sending module 112 is configured to send the touch data to the source device 200;
  • the execution module 202 is configured to perform an operation corresponding to the touch data.
  • the wireless transmission method, the extension device, and the wireless transmission system connect an extension device to the source device, and display the data and audio data of the source device by using the extension device.
  • the method is sent to the touch screen display end for display, realizes the wireless screen transmission function, and can feed the touch data of the touch screen display end to the source end device through the wireless network, thereby realizing the touch operation from the display end to the source end device, thereby greatly improving the operation. Flexibility and convenience.

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Abstract

本发明公开了一种无线传屏方法、扩展设备和无线传屏系统,所述无线传屏方法包括接收源端设备截取的屏幕显示数据和音频数据;将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;通过无线网络接收所述触屏显示端产生的触摸数据;将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。本发明在无线传屏的基础上进一步通过无线的方式实现显示端触摸数据的回传,提高了操作的灵活性和便利性。

Description

一种无线传屏方法、扩展设备和无线传屏系统 技术领域
本发明属于计算机信息处理技术领域,特别涉及一种无线传屏方法、扩展设备和无线传屏系统。
背景技术
传屏技术主要实现将源端设备屏幕上显示的内容和声音同步到投影仪、电视机和会议平板等显示端进行展示,电脑的优势在于处理能力强,操作方便,并且很容易从网络上获取大量的视频、文字、图片和游戏等娱乐资源,但电脑的声音效果和屏幕观影效果要远低于平板电视,无线传屏技术恰好可以将两者的优势充分结合起来。
然而现有的传屏方案往往只能从源端设备单向地将音视频信号传输给显示端,显示端的信号无法回传到源端设备,当通过显示端进行PPT演示时,讲解者需要通过源端设备对PPT进行操作,无可避免地需要在源端设备和显示端来回走动,影响了演示的效果和降低了演示的效率。
为了实现显示端对源端设备屏幕显示内容的操作功能,现有的会议平板通过VGA、HDMI等传输视频信号并通过USB数据线连接会议平板将触摸数据回传给源端设备,然而通过USB有线方式进行传输,需要连接额外的数据线,电脑以及显示端的摆放均受限于数据线,操作繁琐大大降低了便利性。
发明内容
本发明所要解决的技术问题是,提供一种无线传屏方法、扩展设备和无线传屏系统,通过无线的方式实现显示端触摸数据的回传,提高操作的灵活性和便利性。
为了解决上述技术问题,本发明一种无线传屏方法,包括:
接收源端设备截取的屏幕显示数据和音频数据;
将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;
通过无线网络接收所述触屏显示端产生的触摸数据;
将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
其中,所述触摸数据包括触摸点的数量、触摸点的状态、触摸点的坐标和触摸点的压力值中的一种或多种。
在一种优选的实施方式当中,所述方法还包括:
检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
在另一种优选的实施方式当中,所述方法还包括:
检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
其中,所述预先设定的文件类型优选为PPT。
本发明还提供了一种扩展设备,包括
第一接收模块,用于接收源端设备截取的屏幕显示数据和音频数据;
第一发送模块,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;
第二接收模块,用于通过无线网络接收所述触屏显示端产生的触摸数据;
第二发送模块,将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
其中,所述触摸数据包括触摸点的数量、触摸点的状态、触摸点的坐标和触摸点的压力值中的一种或多种。
优选地,所述触摸点的坐标的计算方法为:
根据所述屏幕显示数据在触屏显示端中显示区域的大小进行线性缩放,计算出所述触摸点的坐标。
在一种优选的实施方式当中,所述扩展设备还包括:
检测模块,用于检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;
第三接收模块,用于当所述屏幕显示数据中包含对预先设定的文件类型的展示时,通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
第三发送模块,用于将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
在另一种优选的实施方式当中,所述扩展设备还包括:
检测模块,用于检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;
第三接收模块,用于当所述屏幕显示数据中包含对预先设定的文件类型的展示时,通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
第三发送模块,用于获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
本发明还提供了一种无线传屏系统,包括源端设备、扩展设备和触屏显示端;
所述源端设备包括截取模块和执行模块;所述扩展设备包括第一接收模块、 第二发送模块、第一发送模块和第二接收模块;所述触屏显示端包括展示模块和触摸数据采集模块;
所述截取模块,用于截取所述源端设备的屏幕显示数据和音频数据,并发送给所述扩展设备;
所述第一接收模块,用于接收所述屏幕显示数据和所述音频数据;
所述第一发送模块,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给所述触屏显示端;
所述展示模块,用于对所述屏幕显示数据和所述音频数据进行展示;
触摸数据采集模块,用于采集所述触屏显示端产生的触摸数据,并发送给所述扩展设备;
所述第二接收模块,用于通过无线网络接收所述触摸数据;
所述第二发送模块,用于将所述触摸数据发送给所述源端设备;
所述执行模块,用于执行与所述触摸数据对应的操作。与现有技术相比,本发明具有以下优点:
本发明提供了一种无线传屏方法、扩展设备和无线传屏系统,在源端设备外接一个扩展设备,通过扩展设备将源端设备的屏幕显示数据和音频数据以无线的方式发送给触屏显示端进行显示,实现无线传屏功能,并可通过无线网络将触屏显示端的触摸数据反馈给源端设备,实现从显示端对源端设备的触摸操作,大大提高了操作的灵活性和便利性。
附图说明
图1是本发明提供的无线传屏方法的一个实施例的流程图;
图2是本发明提供的扩展设备的一个实施例的结构示意图;
图3是本发明提供的无线传屏系统的一个实施例的结构示意图。
具体实施方式
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施 例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分的实施例,而不是全部的实施例,实施例中各步骤前的序号仅为了便于说明,并无实质意义,不应视为对步骤执行顺序的限定。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都应当属于本发明保护的范围。
参照图1,本发明提供的无线传屏方法的一个实施例的流程图。
所述无线传屏方法包括步骤S1~S4:
S1,接收源端设备截取的屏幕显示数据和音频数据;
在具体实施当中,扩展设备为一个USB Dongle(USB加密狗),所述扩展设备上设置有USB接口模块、MPU(Microprocessor Unit,微处理器)、无线通信模块、RAM(Random‐Access Memory,随机存取存储器)、NAND FLASH(NAND闪存)、按键和指示灯。所述扩展设备通过USB接口与源端设备源端设备连接,下述实施例中虽然均以电脑作为所述源端设备,但本领域技术人员可以理解所述源端设备可以是电脑、手机和平板等,本发明对此不作限定,本领域技术人员可根据实际需要进行选择。所述扩展设备通过无线通信模块与会议平板(触屏显示端)连接,优选地所述无线通信模块为WIFI(WIreless‐Fidelity,无线保真)模块,所述扩展设备通过WIFI与会议平板建立socket网络连接。所述扩展设备插入源端设备后,所述源端设备自动运行一个应用软件(Application,APP),通过所述应用软件对当前的屏幕显示数据和音频数据进行截取,并将所述屏幕显示数据和所述音频数据发送给所述扩展设备。
S2,将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示。
在具体实施当中,所述扩展设备将从源端设备接收到的所述屏幕显示数据和所述音频数据转发给会议平板,会议平板对接收到的音视频数据进行解码和展示。
S3,通过无线网络接收所述触屏显示端产生的触摸数据。
在具体实施当中,触屏显示端通过运行应用软件对触摸事件进行监控,当 发生触摸事件时,获取产生的触摸数据,对所述触摸数据按照预先设定的格式进行打包并发送给所述扩展设备。其中,所述触摸数据包括触摸点的数量、触摸点的状态、触摸点的坐标和触摸点的压力值中的一种或多种。所述触摸点的坐标包括横轴坐标x,和纵轴坐标y,由于所述触屏显示端与所述源端设备的分辨率存在差异,在实际应用中所述触摸点的坐标可通过以下方法进行计算,可以根据所述屏幕显示数据在所述触屏显示端的显示区域的大小进行线性缩放,以实现触摸位置和显示位置的匹配。例如,所述触摸显示端的分辨率为1000*500,所述源端设备的屏幕分辨率为500*500,当所述触屏显示端对源端设备的屏幕显示数据进行展现时,触屏显示端的显示区域为屏幕中部的500*500的区域,屏幕的两边将出现两条250*500的黑边,以触摸显示端左上角的顶点为坐标原点,若当前触摸点在触摸显示端坐标为(250,0),其实际点击的位置相当于源端设备的(0,0)点,所述坐标的转换可通过线性缩放进行计算。
S4,将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
在具体实施当中,当所述扩展设备在接收到所述触摸数据时,所述扩展设备对所述触摸数据进行解包,然后按照USB HID(Human Interface Device,人机接口设备)多点触摸协议对所述触摸数据重新封装,并将USB HID多点触摸数据格式的触摸数据通过USB接口发送给源端设备。由于所述扩展设备采用标准的USB HID触摸设备协议,所述源端设备的接收到所述触摸数据后将转换为触摸事件传递给操作系统,通过所述源端设备源端设备对所述触摸事件进行响应,从而实现在会议平板上对源端设备进行操作。
在一种优选的实施当中,所述无线传屏方法还包括步骤S5和S6:
S5,检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
在具体实施当中,可通过源端设备源端设备的系统API(Application Programming Interface,应用程序编程接口)接口检测所述屏幕显示数据中是否 包含对预先设定的文件类型的展示,所述预先设定的文件类型优选为PPT,具体地可通过API接口监控PPT软件是否正在运行,以判断源端设备当前是否正在播放PPT。当检测到源端设备正在播放PPT时,则不直接传回触摸数据,而通过所述触屏显示端中的软件对所述触摸数据进行手势识别,并将识别的手势信号发送给扩展设备。
S6,将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
在具体实施当中,扩展设备接收到触屏显示端识别的手势信号后,将所述手势信号通过USB接口转发给源端设备。所述源端设备可通过查表的方式,查找与所述手势信号对应的操作并执行,例如当所述手势信号为向左划动,其对应的操作为将PPT往后翻页,手势信号与具体操作之间的对应关系可根据实际需要自行定义,本发明对此不作限定。
在另一种优选的实施当中,所述无线传屏方法还包括步骤S51和S61:
S51,检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得。所述步骤S51与上文所述步骤S5相同,可参见步骤S5中的相关描述,在此不再赘述。
S61,获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
本实施方式中,扩展设备接收到触屏显示端识别的手势信号后,不直接发送给源端设备,而先将所述手势信号采用键盘协议进行封装后再发送给所述源端设备,直接通过USB HID键盘的方式通过所述扩展设备向源端设备发送按键事件,所述源端设备直接执行按键操作。
通过上述两种实施方式,实现了PPT模式的自动切换,通过手势功能实现对源端设备PPT的操作,有效地防止了误操作,有助于改善用户体验。
此外,在具体实施当中,本发明还可以通过源端设备的应用软件进行设置,以进行PPT模式的切换。
进一步地,在实际操作中还可以通过源端设备的软件对是否将触摸数据回传进行设置,所述无线传屏方法还包括:
接收所述源端设备发送的回传控制信号,并将所述回传控制信号通过无线网络发送给所述触屏显示端,根据所述回传控制信号对所述触屏显示端是否回传所述触摸数据进行控制。当用户选择不需要回传触摸数据时,则所述触摸显示端将不采集触摸数据或将采集到的触摸数据丢弃
如图2所示,本发明提供的扩展设备的一个实施例的结构示意图,本实施例提供的扩展设备的实质内容与上述实施例中所述无线传屏方法相对应,本实施例中未详述之处可参见前述实施例中的相关描述。
所述扩展设备,包括接口模块110和无线模块120;在具体实施当中所述接口模块110优选为USB接口模块,所述无线模块120优选为WIFI模块。
所述接口模块110包括第一接收模块111和第二发送模块112,所述无线模块120包括第一发送模块121和第二接收模块122;
所述第一接收模块111,用于接收源端设备截取的屏幕显示数据和音频数据;
所述第一发送模块121,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;
所述第二接收模块122,用于通过无线网络接收所述触屏显示端产生的触摸数据;其中,所述触摸数据包括触摸点的数量、触摸点的状态、触摸点的坐标和触摸点的压力值中的一种或多种。
所述第二发送模块112,将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
在一种优选的实施当中,所述扩展设备还包括检测模块。
所述检测模块,用于检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;
所述无线模块还包括第三接收模块,所述接口模块还包括第三发送模块。
所述第三接收模块,用于当所述屏幕显示数据中包含对预先设定的文件类型的展示时,通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
所述第三发送模块,用于将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
在另一种优选的实施当中,所述第三发送模块接收到触屏显示端识别的手势信号后,不直接发送给源端设备,而先获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
如图3所示,是本发明实施例提供的无线传屏系统的一个实施例的结构示意图;本实施例提供的无线传屏系统的实质内容与上述实施例中所述无线传屏方法相对应,本实施例中未详述之处可参见前述实施例中的相关描述。
所述无线传屏系统,包括源端设备200、扩展设备100和触屏显示端300;
所述源端设备200包括截取模块201和执行模块202;所述扩展设备100包括接口模块110和无线模块120,所述接口模块110包括第一接收模块111和第二发送模块112,所述无线模块120包括第一发送模块121和第二接收模块122;所述触屏显示端300包括展示模块301和触摸数据采集模块302;
所述截取模块201,用于截取所述源端设备200的屏幕显示数据和音频数据,并发送给所述扩展设备100;
所述第一接收模块111,用于接收所述屏幕显示数据和所述音频数据;
所述第一发送模块121,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给所述触屏显示端300;
所述展示模块301,用于对所述屏幕显示数据和所述音频数据进行展示;
触摸数据采集模块302,用于采集所述触屏显示端300产生的触摸数据,并发送给所述扩展设备100;
所述第二接收模块122,用于通过无线网络接收所述触摸数据;
所述第二发送模块112,用于将所述触摸数据发送给所述源端设备200;
所述执行模块202,用于执行与所述触摸数据对应的操作。
综上所述,本发明实施例提供的无线传屏方法、扩展设备和无线传屏系统,在源端设备外接一个扩展设备,通过扩展设备将源端设备的屏幕显示数据和音频数据以无线的方式发送给触屏显示端进行显示,实现无线传屏功能,并可通过无线网络将触屏显示端的触摸数据反馈给源端设备,实现从显示端对源端设备的触摸操作,大大提高了操作的灵活性和便利性。
以上对本发明所提供的无线传屏方法、扩展设备和无线传屏系统进行了详细介绍,本文中应用了具体个例对交互的本发明的原理及实施方式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思想。同时,对于本领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上均会有改变之处,综上所述,本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种无线传屏方法,其特征在于,包括:
    接收源端设备截取的屏幕显示数据和音频数据;
    将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;
    通过无线网络接收所述触屏显示端产生的触摸数据;
    将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
  2. 如权利要求1所述的无线传屏方法,其特征在于,所述触摸数据包括触摸点的数量、触摸点的状态、触摸点的坐标和触摸点的压力值中的一种或多种。
  3. 如权利要求2所述的无线传屏方法,其特征在于,所述触摸点的坐标的计算方法为:
    根据所述屏幕显示数据在触屏显示端中显示区域的大小进行线性缩放,计算出所述触摸点的坐标。
  4. 如权利要求3所述的无线传屏方法,其特征在于,所述方法还包括:
    检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
    将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
  5. 如权利要求3所述的无线传屏方法,其特征在于,所述方法还包括:
    检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;若是,则通过无线网络接收所述触屏显示端发送的手势信号;所述手势信号为所述触 屏显示端对所述触摸数据进行手势识别获得;
    获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
  6. 如权利要求3或4所述的无线传屏方法,其特征在于,所述预先设定的文件类型为PPT。
  7. 一种扩展设备,其特征在于,包括
    第一接收模块,用于接收源端设备截取的屏幕显示数据和音频数据;
    第一发送模块,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给触屏显示端,通过所述触屏显示端对所述屏幕显示数据和所述音频数据进行展示;
    第二接收模块,用于通过无线网络接收所述触屏显示端产生的触摸数据;
    第二发送模块,将所述触摸数据发送给所述源端设备,通过所述源端设备执行与所述触摸数据对应的操作。
  8. 如权利要求7所述的一种扩展设备,其特征在于,所述扩展设备还包括:
    检测模块,用于检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;
    第三接收模块,用于当所述屏幕显示数据中包含对预先设定的文件类型的展示时,通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
    第三发送模块,用于将所述手势信号发送给所述源端设备,并通过所述源端设备采用操作系统模拟按键事件的方式执行与所述手势信号对应的操作。
  9. 如权利要求7所述的一种扩展设备,其特征在于,所述扩展设备还包括:
    检测模块,用于检测所述屏幕显示数据中是否包含对预先设定的文件类型的展示;
    第三接收模块,用于当所述屏幕显示数据中包含对预先设定的文件类型的展示时,通过无线网络接收所述触屏显示端发送的手势信号;其中,所述手势信号为所述触屏显示端对所述触摸数据进行手势识别获得;
    第三发送模块,用于获取与所述手势信号对应的按键事件,将所述按键事件通过键盘协议发送给所述源端设备,通过所述源端设备对所述按键事件进行响应。
  10. 一种无线传屏系统,其特征在于,包括源端设备、扩展设备和触屏显示端;
    所述源端设备包括截取模块和执行模块;所述扩展设备包括第一接收模块、第二发送模块、第一发送模块和第二接收模块;所述触屏显示端包括展示模块和触摸数据采集模块;
    所述截取模块,用于截取所述源端设备的屏幕显示数据和音频数据,并发送给所述扩展设备;
    所述第一接收模块,用于接收所述屏幕显示数据和所述音频数据;
    所述第一发送模块,用于将所述屏幕显示数据和所述音频数据通过无线网络发送给所述触屏显示端;
    所述展示模块,用于对所述屏幕显示数据和所述音频数据进行展示;
    触摸数据采集模块,用于采集所述触屏显示端产生的触摸数据,并发送给所述扩展设备;
    所述第二接收模块,用于通过无线网络接收所述触摸数据;
    所述第二发送模块,用于将所述触摸数据发送给所述源端设备;
    所述执行模块,用于执行与所述触摸数据对应的操作。
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