CN108259813B - Multifunctional screen transmission device, system and method - Google Patents
Multifunctional screen transmission device, system and method Download PDFInfo
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- CN108259813B CN108259813B CN201810090792.4A CN201810090792A CN108259813B CN 108259813 B CN108259813 B CN 108259813B CN 201810090792 A CN201810090792 A CN 201810090792A CN 108259813 B CN108259813 B CN 108259813B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/14—Systems for two-way working
- H04N7/15—Conference systems
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- 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 stream to a specific local network, e.g. a Bluetooth® network
- H04N21/43637—Adapting the video stream to a specific local network, e.g. a Bluetooth® network involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11]
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Abstract
The application discloses a multifunctional screen transmission device, a multifunctional screen transmission system and a multifunctional screen transmission method, and belongs to the technical field of internet. This multi-functional biography screen device includes: the first physical interface is used for connecting a first terminal; the second physical interface is used for connecting a second terminal; the screen transmission mode switching module is used for switching the multifunctional screen transmission device to a first screen transmission mode when the first physical interface is connected to the first terminal and the second physical interface is not connected to the second terminal; when the first physical interface is connected to the first terminal and the second physical interface is detected to be connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode. The multifunctional screen transmission device, the multifunctional screen transmission system and the multifunctional screen transmission method can realize switching between the first screen transmission mode and the second screen transmission mode, so that the data transmission safety requirements of different application scenes are met.
Description
Technical Field
The invention relates to the technical field of internet, in particular to a multifunctional screen transmission device, a multifunctional screen transmission system and a multifunctional screen transmission method.
Background
When a business or an individual uses a video conference system for remote communication, the content displayed on a computer screen, such as images and/or audios and videos, needs to be shared in the conference to perform a presentation operation. Screen transmission refers to transmitting content (such as images and/or audios and videos) on a screen of a certain terminal to another terminal through a certain communication mode so as to be displayed on the screen of the terminal, for example, transmitting a screen picture of a mobile phone to a desktop computer and displaying the screen picture on a display of the desktop computer, and vice versa. How to enable the participating users to conveniently share the screen images of the terminals such as computers or mobile phones in the video conference becomes a problem of user attention.
Therefore, a new multifunctional screen transmission device, system and method are needed.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not constitute prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
In view of this, the present invention provides a multifunctional screen transmission device, system and method, which can realize the switching between two screen transmission modes.
Additional features and advantages of the invention will be set forth in the detailed description which follows, or may be learned by practice of the invention.
According to an aspect of the present invention, there is provided a multifunctional screen transmission device, including: the first physical interface is used for connecting a first terminal; the second physical interface is used for connecting a second terminal; the screen transmission mode switching module is used for switching the multifunctional screen transmission device to a first screen transmission mode when the first physical interface is connected to the first terminal and the second physical interface is not connected to the second terminal; when the first physical interface is connected to the first terminal and the second physical interface is detected to be connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode.
In an exemplary embodiment of the present disclosure, the first physical interface is a USB interface.
In an exemplary embodiment of the present disclosure, the second physical interface is a USB Type-C interface.
In an exemplary embodiment of the present disclosure, the first screen transmission mode is a wireless screen transmission mode, and the second screen transmission mode is a wired screen transmission mode.
According to an aspect of the present invention, a multifunctional screen transmission system is provided, including: a first terminal comprising a first terminal interface; a second terminal; and the multifunctional screen transmission device in the embodiment.
In an exemplary embodiment of the present disclosure, the second terminal includes a second terminal interface for connecting with the second physical interface of the multi-function touch screen device.
In an exemplary embodiment of the present disclosure, the second terminal interface and the second physical interface are connected by a USB cable.
According to an aspect of the present invention, a multifunctional screen transmission method is provided, including: judging whether a first physical interface of the multifunctional screen transmission device is connected with a first terminal or not; when the first physical interface is connected to the first terminal, judging whether a second physical interface of the multifunctional screen transmission device is connected with a second terminal; when the second physical interface is not connected to the second terminal, the multifunctional screen transmission device is switched to a first screen transmission mode; and when the second physical interface is connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode.
In an exemplary embodiment of the present disclosure, the first physical interface is a USB interface, and the second physical interface is a USB Type-C interface.
In an exemplary embodiment of the present disclosure, the first screen transmission mode is a wireless screen transmission mode, and the second screen transmission mode is a wired screen transmission mode.
According to the multifunctional screen transmission device, the multifunctional screen transmission system and the multifunctional screen transmission method provided by some embodiments of the invention, the first screen transmission mode and the second screen transmission mode can be switched by the first physical interface used for connecting the first terminal and the second physical interface used for connecting the second terminal, so that the data transmission safety requirements of different application scenes are met.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are only some embodiments of the invention and other drawings may be derived from those drawings by a person skilled in the art without inventive effort.
Fig. 1 is a schematic diagram illustrating a multi-function touch screen device according to an exemplary embodiment.
Fig. 2 is a perspective view of a multi-function touch screen device according to an exemplary embodiment.
Fig. 3 is a top view of the multi-function touch screen apparatus according to fig. 2.
Fig. 4 is a bottom view of the multi-function screen transmission device according to fig. 2.
Fig. 5 is a schematic diagram illustrating a multi-function touch screen system in accordance with an exemplary embodiment.
Fig. 6 is a diagram illustrating a multi-function touch-up method according to an example embodiment.
Fig. 7 is a schematic diagram illustrating a wireless screen mode of a multi-function screen transmitter according to an exemplary embodiment.
Fig. 8 is a schematic diagram illustrating a wireless screen mode of another multi-function screen transmitter according to an example embodiment.
Fig. 9 is a schematic diagram illustrating a wireless screen mode of yet another multi-function screen transmitter according to an example embodiment.
Fig. 10 is a schematic diagram illustrating a wired touch screen mode of a multifunction touch screen according to an exemplary embodiment.
Fig. 11 is a schematic diagram illustrating a wired touch screen mode of another multi-function touch screen according to an example embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to provide a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations or operations have not been shown or described in detail to avoid obscuring aspects of the invention.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another. Thus, a first component discussed below may be termed a second component without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It will be appreciated by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or flow charts in the drawings are not necessarily required to practice the present invention and are, therefore, not intended to limit the scope of the present invention.
The following detailed description of exemplary embodiments of the disclosure refers to the accompanying drawings.
Fig. 1 is a schematic diagram illustrating a multi-function touch screen device according to an exemplary embodiment.
As shown in fig. 1, the multifunctional screen-transferring device 100 provided in the present embodiment may include a first physical interface 110, a second physical interface 120, and a screen-transferring mode switching module 130.
The first physical interface 110 may be used to connect a first terminal.
The second physical interface 120 may be used to connect a second terminal.
The screen transmission mode switching module 130 may be configured to switch the multifunctional screen transmission device to the first screen transmission mode when the first physical interface is connected to the first terminal and it is detected that the second physical interface is not connected to the second terminal; when the first physical interface is connected to the first terminal and the second physical interface is detected to be connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode.
In an exemplary embodiment, the first physical interface 110 may be a USB interface. However, the present disclosure is not limited thereto, and any other interface that can achieve the object of the present invention is possible.
In an exemplary embodiment, the second physical interface 120 may be a USB Type-C interface. However, the present disclosure is not limited thereto, and any other interface that can achieve the object of the present invention is possible.
USB Type-C connections can enable faster transmission speeds (up to 10Gbps) and stronger power transmission (up to 100W). The biggest characteristic of the Type-C double-sided pluggable interface is that the USB interface is supported to be plugged in double sides, the problem that the USB is not accurately plugged is solved, and the front side and the back side are conveniently plugged. And simultaneously, the USB cable matched with the USB cable is thinner and lighter. The USB Type-C Type port can transmit data and charge and can also be used as a video output port to be linked with an external display device.
In an exemplary embodiment, the first screen transmission mode may be a wireless screen transmission mode, and the second screen transmission mode may be a wired screen transmission mode.
The multifunctional screen transmission device provided by the embodiment of the disclosure reserves an interface in addition to the USB interface on the hardware of the screen transmission device, and can be connected with a USB Type-C connecting line, so that the wired connection between the screen transmission device and the second terminal can be realized. The reason is that the application scenario exists, some enterprises have safety requirements, the second terminal is not allowed to start the wireless Wi-Fi, and only wired connection is adopted to transmit the screen of the computer through a cable. Through reserving this second physical interface, can satisfy the user that has special security level demand, the user can insert this multi-functional biography screen device on first terminal such as computer USB interface, and the USB cable on this multi-functional biography screen device of rethread is directly connected to the second terminal, carries out wired biography screen to can guarantee data transmission's security and stability, can realize higher-speed real-time biography screen simultaneously.
In the embodiment of the present invention, the screen transmission between the first terminal and the second terminal may be implemented based on a wireless local area network communication standard protocol (for example, 802.11n, 802.11ac, 5GHz band, and for example, 802.11AD, 60GHz band).
In the embodiment of the invention, the first terminal and the second terminal both support a wireless local area network communication standard protocol, and establish wireless connection and transmit a screen based on the wireless local area network communication standard protocol.
In the embodiment of the present invention, the second terminal may be a user terminal, the user terminal may be a mobile phone, a tablet computer, a notebook computer, a desktop computer, or the like, and the first terminal may be a receiving terminal such as an intelligent television, a notebook computer, a desktop computer, or the like, so that efficient screen transmission between the mobile phone and the intelligent television, between the tablet computer and the intelligent television, between the notebook computer and the notebook computer, between the notebook computer and the desktop computer, or the like may be achieved.
Fig. 2 is a perspective view of a multi-function touch screen device according to an exemplary embodiment. Fig. 3 is a top view of the multi-function touch screen apparatus according to fig. 2. Fig. 4 is a bottom view of the multi-function screen transmission device according to fig. 2.
Fig. 5 is a schematic diagram illustrating a multi-function touch screen system in accordance with an exemplary embodiment.
As shown in fig. 5, the multi-function screen transmission system 200 provided in this embodiment may include a first terminal 210, a multi-function screen transmission device 220, and a second terminal 230, where the first terminal 210 and the second terminal 230 may implement wireless screen transmission or wired screen transmission through the multi-function screen transmission device 220.
Specifically, the multifunctional screen transmission device 220 may refer to the multifunctional screen transmission device 100 shown in fig. 1, and details thereof are not repeated herein.
Fig. 6 is a diagram illustrating a multi-function touch-up method according to an example embodiment.
As shown in fig. 6, the multifunctional screen transmission method provided in the present embodiment may include the following steps.
In step S110, determining whether a first physical interface of the multifunctional screen transmission device is connected to a first terminal; when the first physical interface of the multifunctional screen transmission device is connected with the first terminal, the step S120 is entered; otherwise, the process returns to step S110 to continue the determination.
In step S120, determining whether a second physical interface of the multifunctional screen transmission device is connected to a second terminal; when the second physical interface of the multifunctional screen transmission device is connected with a second terminal, the step S140 is executed; otherwise, the process proceeds to step S130.
In step S130, the multifunctional screen transmission device is switched to a first screen transmission mode.
In step S140, the multifunctional screen transmission device is switched to a second screen transmission mode.
Fig. 7 is a schematic diagram illustrating a wireless screen mode of a multi-function screen transmitter according to an exemplary embodiment.
As shown in fig. 7, it is assumed that the first terminal is a notebook computer, the multifunctional screen transmitter is inserted into a USB interface of the notebook computer through the USB interface, the screen transmitting software stored in the multifunctional screen transmitter is run in the notebook computer, the screen capture code stream on the notebook computer is captured, and the captured screen capture code stream is wirelessly transmitted to the second terminal, which is assumed to be a receiving terminal, so as to be displayed on the display screen of the receiving terminal.
Fig. 8 is a schematic diagram illustrating a wireless screen mode of another multi-function screen transmitter according to an example embodiment. Fig. 9 is a schematic diagram illustrating a wireless screen mode of yet another multi-function screen transmitter according to an example embodiment.
In this embodiment, the receiving terminal (i.e., the second terminal) broadcasts WiFi (WIreless-Fidelity) configuration information of the receiving terminal, where the WiFi configuration information is used to establish a WIreless connection between the receiving terminal and the first terminal (here, a notebook computer with a screen transmitter is inserted in the figure is taken as an example).
In a specific embodiment, if the screen content on the laptop is to be transmitted to the receiving terminal, the communication module supporting the wlan communication standard protocol may be pre-installed on both the laptop and the receiving terminal, and the communication module supporting the wlan communication standard protocol may specifically be a WiFi chip supporting the wlan communication standard protocol, for example, a high-pass WiFi chip supporting the wlan communication standard protocol, so that both the laptop and the receiving terminal support the wlan communication standard protocol; the receiving terminal broadcasts the WiFi configuration information of the receiving terminal, after the notebook computer receives the WiFi configuration information broadcasted by the receiving terminal, the wireless connection between the notebook computer and the receiving terminal is established according to the WiFi configuration information, the notebook computer is accessed to a network shared by the receiving terminal, and a peer to peer (namely a peer-to-peer computer or a peer-to-peer network, the core is that data is stored in the local of a user, and direct data transmission between the terminals is realized through the storage information such as name, address and block inquiry), so that the transmission mode between the notebook computer and the receiving terminal can be suitable for the corresponding frequency band of the wireless local area network communication standard protocol, namely, the connection is established, and the screen content on the notebook computer is transmitted to the receiving terminal based on the corresponding frequency band of the wireless local area network communication standard protocol, therefore, the screen content on the notebook computer can be easily transmitted to the receiving terminal to be displayed.
In an exemplary embodiment, the broadcasted WiFi configuration information may include: and broadcasting the WiFi configuration information of the receiving terminal through ultrasonic waves or Bluetooth.
In some embodiments, the WiFi configuration information of the receiving terminal may be broadcast by ultrasound.
Wherein the ultrasonic wave forming may include the steps of: the information to be transmitted can be controlled and modified from the background, namely the transmitted information can be modified in real time, so that the transmitted information is determined; net and java programming languages, which are familiar to those skilled in the art, are used for programming, so that information in any format including Chinese can be transmitted through sound waves; coding the converted byte array through an ultrasonic wave generation algorithm to form a sound wave byte array; the sound wave byte array is broadcast in the form of sound.
When the notebook computer receives the ultrasonic wave sent by the receiving terminal, the ultrasonic wave can be analyzed. Specifically, the ultrasonic analysis may include the steps of: the sound containing the sound wave byte array is obtained by continuously recording, so that the obtained sound not only contains the sound for transmitting the designated information, but also comprises various noises in the environment; the sound wave byte arrays in the sound are decoded through an ultrasonic wave analysis algorithm, and a receiving end really receives the transmitted data to obtain corresponding transmission information.
In other embodiments, the WiFi configuration information of the receiving terminal may be broadcast over bluetooth.
Wherein, receiving terminal includes the bluetooth transmitter, the notebook computer includes the bluetooth receiver. The bluetooth transmitter detects a bluetooth receiver in a bluetooth range of the bluetooth transmitter. The bluetooth transmitter then broadcasts the data packet to the detected bluetooth receiver in a first transmit timing window. Correspondingly, upon successful receipt of a data packet by the bluetooth receiver, the bluetooth receiver sends an acknowledgement packet back to the bluetooth transmitter, respectively.
Note here that when the bluetooth receiver fails to receive the data packet, the bluetooth receiver does not send an acknowledgement packet back to the bluetooth transmitter. The bluetooth transmitter detects whether an acknowledgement packet is received from the bluetooth receiver to generate a broadcast result. The bluetooth transmitter may determine whether the broadcasting operation of the data packet is successful according to the broadcasting result. If the broadcast operation of the data packet is unsuccessful, the Bluetooth transmitter may rebroadcast the data packet to the Bluetooth receiver.
In AN exemplary embodiment, the WiFi configuration information includes any one or more of a WiFi SSID (Service Set Identifier), a password, AN IP (Internet protocol address, or Internet protocol address) address information, and the like of the receiving terminal, where the SSID is generally a Network name of a device in a wireless L AN (L area Network) subsystem.
In the embodiment of the invention, the code stream receiving module of the receiving terminal receives the code stream information sent by the notebook computer through the wireless connection.
In the embodiment of the invention, the receiving terminal receives compressed frame data sent by a notebook computer based on an 802.11AD wireless local area network communication standard protocol, namely, receives code stream information sent by the notebook computer.
In this embodiment of the present invention, the receiving terminal decodes the compressed frame data. It should be noted that the decoding module has a decompression function, i.e., can decompress the compressed frame data.
In the embodiment of the invention, the receiving terminal plays the decoded frame data, namely plays the code stream information on the notebook computer, wherein the code stream information comprises screen display data and audio-video data on the notebook computer.
As described above, in this embodiment, the frame data sent by the notebook computer is received, the received frame data is decoded, and the decoded frame data is played, so that the receiving terminal plays the screen display data and the audio/video data on the notebook computer, so as to achieve the purpose of screen transmission.
In the embodiment of the invention, the code stream receiving module of the receiving terminal sends the code stream information to a display device for displaying.
In an exemplary embodiment, a code stream broadcasting module of the receiving terminal may start a code stream push service; and broadcasting the received code stream information through a live broadcast code stream protocol.
In an exemplary embodiment, the received code stream information is broadcasted through the code stream broadcasting module of the receiving terminal and by using a live code stream protocol, for example, address information of the code stream push service may be broadcasted through ultrasonic waves, and the address information is used by a local user terminal within a preset range to play the code stream information on the local user terminal according to the address information, where the address information includes an IP and UR L (uniform resource L locator) link address of the code stream push service of the code stream information.
In an exemplary embodiment, the code stream receiving module of the receiving terminal may further send the code stream information to a cloud server, so as to display the code stream information in a remote conference room.
The wireless screen transmission method allows a user to use a wireless screen transmitter with a wireless connection function (such as WiFi) to be inserted into a first terminal through a USB interface, screen transmission software is stored in the wireless screen transmitter, the screen transmission software is operated on the first terminal, and after the first terminal receives WiFi configuration information broadcasted by a receiving terminal, wireless connection between the first terminal and the receiving terminal based on a wireless local area network communication standard protocol (such as 802.11n, 802.11ac and 5GHz frequency bands) is established. If the first terminal is in a video conference and there is a device needing to share screen pictures (which may include audio) in the place where the first terminal is located, that is, a second terminal (which may be a desktop computer, a notebook computer, a mobile phone, etc.) of a wireless screen transmission, after the first terminal appropriately operates to confirm (for example, clicks a "screen transmission" button on the screen), the screen content (including pictures and/or audio) of the first terminal can be transmitted to the second terminal through the established wireless connection and transmitted to the cloud server through the second terminal, so as to be shared with other conference members (other terminals) in a remote conference room, and all terminals participating in the video conference can see the desktop of the computer being shared.
On the other hand, if the first terminal does not log in the video conference, the wireless screen transmitter can be inserted into the first terminal, and through the operation, the screen content of the first terminal can be transmitted to the second terminal through the wireless connection established between the wireless screen transmitter and the second terminal so as to be displayed on the screen of the second terminal, so that the function of local screen projection is realized.
In addition, the IP and UR L (Uniform Resource L oscillator) link address of the broadcast code stream push service can be used, so that any user terminal in the same conference room, such as the first terminal with a seat far away from the second terminal, can obtain the playing link of the code stream information of the current video conference, and the function of playing the code stream information on the local user terminal is realized, so that the problem that the content displayed on the display screen of the second terminal cannot be seen clearly in a long distance can be solved, the user experience is greatly improved, and the realization of the method can share the ultrasonic broadcasting mode of the WiFi configuration information, and the realization is simple and convenient.
In the embodiment of the invention, screen capturing software is operated on a first terminal, and frame data on a screen of the first terminal is captured through the screen capturing software, wherein the frame data at least comprises screen display data and audio-video data; encoding frame data; the encoded frame data is compressed. And sending the code stream information to the receiving terminal through the wireless connection.
The compressed frame data may be transmitted based on a wlan communication standard protocol. Optionally, the compressed frame data is modulated and encoded according to a wlan communication standard protocol to obtain a radio frequency signal meeting the wlan communication standard protocol, and the radio frequency signal meeting the wlan communication standard protocol is transmitted through a transmitting antenna.
As described above, in this embodiment, the screen capture software is used to capture frame data on the first terminal screen, then the captured frame data is sequentially encoded and compressed, and finally the compressed frame data is sent based on the wlan communication standard protocol, so as to implement screen transmission of the first terminal screen.
As shown in fig. 8, the receiving terminal supporting wireless screen transmission includes three modules: the device comprises a first broadcast module, a code stream receiving module and a second broadcast module.
The first broadcasting module can be used for broadcasting WiFi configuration information such as WiFi SSID, passwords and IP of a receiving terminal of the wireless transmission screen through ultrasonic waves or Bluetooth. The code stream receiving module may be configured to receive a screen capture code stream from a computer screen (a notebook computer is used as an example in the figure, but the disclosure is not limited thereto) sent by the screen uploading software on the small bar of the wireless screen transmitter, for example, audio and video from the computer screen.
In the embodiment shown in fig. 8, one path of the code stream received by the code stream receiving module may be sent to a cloud server (if the current terminal is in a multiparty conference), and the other path of the code stream may be sent to a local second broadcast module (or referred to as a code stream broadcast module).
In the embodiment shown in fig. 8, after running on a computer, the screen transmission software on the screen transmitter supports listening to an ultrasonic broadcast (frequency >20KHz) through a microphone of the computer, resolving information such as a WiFi SSID, a password, an IP and the like of a receiving end through sound waves, performing wireless connection between the computer and the receiving terminal, and transmitting an audio/video code stream captured by a screen on the computer to the receiving terminal, so as to realize wireless screen transmission. And after receiving the code stream, the receiving terminal can display the code stream through a locally connected display screen.
In the embodiment of the invention, the Wi-Fi configuration information of the wireless screen transmission hotspot can be broadcasted in a room by a receiving terminal through sending ultrasonic waves or in a Bluetooth mode. The data transmitted by the ultrasonic wave (or Bluetooth) can be monitored by a screen transmission program installed on a computer, after the data is decoded, the screen transmission program is further transmitted, so that the corresponding Wi-Fi hot spot can be directly connected, and a screen-grabbing data transmission channel is established. Thus, the screener hardware need not be configured at the receiving terminal.
In the embodiment of the invention, in the ultrasonic broadcasting, the address (IP + specific UR L short link) for receiving the code stream push service initiated by the terminal can be simultaneously provided, users in the same conference room can use personal devices such as a computer and a mobile phone, a software client of a video conference is opened, nearby code streams are searched for live broadcast, and the code streams can be received on the personal devices by analyzing the code stream push address of the ultrasonic wave, so that the screen sharing content of the computer can be synchronously watched on the personal devices.
For example, in a large conference room, although the computer screen is transmitted to the large screen of the receiving terminal, if the user is located relatively far from the large screen at a relatively back position, the content on the large screen may still not be clearly seen. In the embodiment of the invention, by adding a screen transmission broadcasting mechanism, a user who sits far away can use personal equipment such as a mobile phone, a pad, a notebook computer and a desktop computer, and can obtain a live broadcast link by receiving the information of ultrasonic broadcasting, and click the link, screen transmission contents such as images can be watched on the personal equipment, so that the images can be zoomed and clearly watched, and the problem that the large screen cannot be seen clearly after the user sits at a position is solved.
It should be noted that the hardware of the screen transfer device in fig. 8 may be a storage device similar to a usb disk, and may be used as a storage and installation device for screen transfer software.
In the embodiment of the invention, the wireless screen transmitter with the universal interface is used, and the wireless screen transmitter is inserted into any terminal of the video conference through the USB interface, so that a computer screen picture can be easily shared by one key for demonstration in the video conference (also can be used for local screen projection demonstration of a non-conference). This has the following advantages: on one hand, the operation of a user is convenient and fast, screen transmission software does not need to be installed on a second terminal of a screen picture to be shared in advance, and complicated operation is not needed, so that the user can share the computer desktop by one key in a multi-party video conference (or local screen projection demonstration); on the other hand, the content sharing transmission is more reliable, the data of the screen transmission device and the second terminal are transmitted by using the corresponding frequency band of the WLAN communication standard protocol, and the data transmission is more stable and reliable under the condition that the screen transmission device and the second terminal are in the same meeting room.
As shown in fig. 9, the conference room 1 or 2 in a remote place and the computer sending the screen capture code stream are in the same multiparty video conference, and a receiving terminal similar to that in the local conference room may also be deployed. The receiving terminal can receive the code stream from the cloud server, and display the code stream locally (here, locally means locally relative to the conference room 1 or 2 in a different place, but locally relative to the local conference room in fig. 8); meanwhile, the received code stream is locally started in the conference room 1 or the conference room 2 to provide a code stream push service for the user in the conference room 1 or the conference room 2 to watch the computer shared content in the remote conference room, i.e. the local conference room shown in fig. 8, through the personal device.
Fig. 10 is a schematic diagram illustrating a wired touch screen mode of a multifunction touch screen according to an exemplary embodiment.
As shown in fig. 10, it is assumed that the first terminal is a notebook computer, the multifunctional screen transmitter is inserted into a USB interface of the notebook computer through a USB interface, meanwhile, the multifunctional screen transmitter is inserted into a USB Type-C interface thereof through a USB cable, and the other end of the USB cable is inserted into a USB interface of a receiving terminal, so as to implement a wired connection between the notebook computer and the receiving terminal. And running screen transmission software stored in the multifunctional screen transmitter in the notebook computer, capturing a screen capture code stream on the notebook computer, transmitting the captured screen capture code stream to a second terminal through a USB cable, wherein the second terminal is assumed to be a receiving terminal, and displaying the screen capture code stream on a display screen of the receiving terminal.
Fig. 11 is a schematic diagram illustrating a wired touch screen mode of another multi-function touch screen according to an example embodiment.
As shown in fig. 11, it is assumed that the first terminal is a notebook computer, the multifunctional screen transmitter is inserted into a USB interface of the notebook computer through a USB interface, meanwhile, the multifunctional screen transmitter is inserted into a USB Type-C interface of the multifunctional screen transmitter through a USB cable, and the other end of the USB cable is inserted into a USB interface of a code stream receiving module of a receiving terminal, so as to implement a wired connection between the notebook computer and the receiving terminal. And running screen transmission software stored in the multifunctional screen transmitter in the notebook computer, capturing a screen capture code stream on the notebook computer, and transmitting the captured screen capture code stream to a code stream receiving module of the receiving terminal through a USB cable so as to be displayed on a display screen of the receiving terminal.
In addition, the receiving terminal further comprises a code stream broadcasting module, and the code stream broadcasting module can broadcast the screen capture code stream of the notebook computer received by the code stream receiving module to any one or more of a local pad, a local mobile phone or a local computer in a local conference room.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiment of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to execute the method according to the embodiment of the present invention.
Exemplary embodiments of the present invention are specifically illustrated and described above. It is to be understood that the invention is not limited to the precise construction, arrangements, or instrumentalities described herein; on the contrary, the invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
In addition, the structures, proportions, sizes, and the like shown in the drawings are only used for matching with the disclosure of the present disclosure, so as to be understood and read by those skilled in the art, and are not used for limiting the limit conditions of the present disclosure, so that the present disclosure has no technical essence, and any structural modification, proportion relationship change, or size adjustment should still fall within the scope of the technical contents of the present disclosure without affecting the technical effects and the achievable objectives of the present disclosure. In addition, the terms "above", "first", "second" and "a" as used in the present specification are for the sake of clarity only, and are not intended to limit the scope of the present disclosure, and changes or modifications of the relative relationship may be made without substantial technical changes and modifications.
Claims (6)
1. A multi-function touch screen system, comprising:
a first terminal comprising a first terminal interface;
the second terminal comprises a first broadcasting module and a second broadcasting module, wherein the first broadcasting module is used for broadcasting WiFi configuration information of a receiving terminal of a wireless transmission screen; and
multi-functional biography screen device includes:
the first physical interface is used for connecting a first terminal;
the second physical interface is used for connecting a second terminal;
the screen transmission mode switching module is used for switching the multifunctional screen transmission device to a first screen transmission mode when the first physical interface is connected to the first terminal and the second physical interface is not connected to the second terminal; when the first physical interface is connected to the first terminal and the second physical interface is detected to be connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode;
the first screen transmission mode is a wireless screen transmission mode, and the second screen transmission mode is a wired screen transmission mode;
when the first screen transmission mode is switched, the first terminal receives the WiFi SSID and the password of the second terminal through the wireless screen transmission receiving terminal of the ultrasonic broadcast, and automatically establishes wireless connection with the second terminal;
the second terminal also comprises a code stream receiving module which is used for receiving the screen capturing code stream sent by the multifunctional screen transmission device;
the second terminal also comprises a second broadcasting module, wherein the code stream received by the code stream receiving module is sent to the second broadcasting module;
the code stream receiving module sends one path of the received screen capturing code stream to a cloud server;
the code stream receiving module also receives a screen capturing code stream from a remote conference room from the cloud server;
the second broadcast module is used for starting a code stream pushing service, locally broadcasting the received screen capturing code stream from the multifunctional screen transmitting device and/or the cloud server, and the second terminal pushes the address of the service through the ultrasonic broadcast code stream.
2. A multi-function touch screen system according to claim 1, wherein the second terminal comprises a second terminal interface for interfacing with a second physical interface of the multi-function touch screen device.
3. A multi-function screen transfer system as recited in claim 1, wherein the multi-function screen transfer device has screen transfer software stored therein, the screen transfer software being run on the first terminal.
4. The multi-function touch screen system of claim 2, wherein the second terminal interface and the second physical interface are connected by a USB cable.
5. A multifunctional screen transmission method comprises the following steps:
judging whether a first physical interface of the multifunctional screen transmission device is connected with a first terminal or not;
when the first physical interface is connected to the first terminal, judging whether a second physical interface of the multifunctional screen transmission device is connected with a second terminal;
when the second physical interface is not connected to the second terminal, the multifunctional screen transmission device is switched to a first screen transmission mode;
when the second physical interface is connected to the second terminal, the multifunctional screen transmission device is switched to a second screen transmission mode;
the first screen transmission mode is a wireless screen transmission mode, and the second screen transmission mode is a wired screen transmission mode;
the second terminal comprises a first broadcasting module used for broadcasting WiFi configuration information of a wireless screen transmission receiving terminal, and when the first screen transmission mode is switched, the first terminal receives a WiFi SSID and a password of the wireless screen transmission receiving terminal broadcasted by the second terminal through ultrasonic waves and automatically establishes wireless connection with the second terminal;
the second terminal also comprises a code stream receiving module which is used for receiving the screen capturing code stream sent by the multifunctional screen transmission device;
the second terminal also comprises a second broadcasting module, wherein the code stream received by the code stream receiving module is sent to the second broadcasting module;
the code stream receiving module sends one path of the received screen capturing code stream to a cloud server;
the code stream receiving module also receives a screen capturing code stream from a remote conference room from the cloud server;
the second broadcast module is used for starting a code stream pushing service, locally broadcasting the received screen capturing code stream from the multifunctional screen transmitting device and/or the cloud server, and the second terminal pushes the address of the service through the ultrasonic broadcast code stream.
6. The multifunctional screen transmission method according to claim 5, wherein the first physical interface is a USB interface, and the second physical interface is a USB Type-C interface.
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109118847A (en) * | 2018-07-20 | 2019-01-01 | 深圳点猫科技有限公司 | A kind of the classroom interaction throwing screen method and electronic equipment of Linux system level |
| CN109194903A (en) * | 2018-10-17 | 2019-01-11 | 上海赛连信息科技有限公司 | A kind of method and apparatus based on public WiFi wireless screen transmission |
| CN109344101A (en) * | 2018-11-01 | 2019-02-15 | 北京硬壳科技有限公司 | Data processing system and method |
| CN109819493B (en) * | 2019-03-06 | 2022-04-01 | 深圳前海达闼云端智能科技有限公司 | Control method, screen projection method and device, storage medium and electronic equipment |
| CN110049368A (en) * | 2019-04-26 | 2019-07-23 | 北京奇艺世纪科技有限公司 | A kind of display methods and relevant device |
| CN112055040B (en) * | 2019-06-06 | 2023-07-04 | 百度在线网络技术（北京）有限公司 | Screen projection processing method, device, equipment and storage medium |
| CN116389822A (en) * | 2020-03-30 | 2023-07-04 | 华为技术有限公司 | Data transmission method, chip system and related device |
| CN112153457A (en) * | 2020-09-10 | 2020-12-29 | Oppo（重庆）智能科技有限公司 | Wireless screen projection connection method and device, computer storage medium and electronic equipment |
| CN114125539B (en) * | 2022-01-28 | 2022-05-03 | 广州长嘉电子有限公司 | Intelligent large-screen device high-definition playing control method and system based on wireless transmission |
| CN117896447A (en) * | 2022-10-08 | 2024-04-16 | 广州视臻信息科技有限公司 | Data transmission method, electronic equipment, screen transmitter and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685323A (en) * | 2008-09-22 | 2010-03-31 | 联想(北京)有限公司 | Computer docking station and switching working method thereof |
| CN206004794U (en) * | 2016-07-27 | 2017-03-08 | 北京东方浩生科技发展有限公司 | WiFi is wirelessly transferred with screen device |
| CN107368273A (en) * | 2017-07-07 | 2017-11-21 | 深圳市海勤科技有限公司 | The key operation local area network wireless of plug and play one passes screen operator, system and method |
| CN107479847A (en) * | 2017-09-29 | 2017-12-15 | 广州视源电子科技股份有限公司 | Screen transmission device and screen transmission system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101474927B1 (en) * | 2011-12-22 | 2014-12-31 | 주식회사 케이티 | Method for outputting image data from terminal to display device and terminal thereof |
| CN106788779A (en) * | 2016-11-09 | 2017-05-31 | 上海斐讯数据通信技术有限公司 | Beacon frame information method, wireless aps and terminal in wireless aps |
| CN107046736B (en) * | 2017-05-19 | 2020-05-12 | 广州视源电子科技股份有限公司 | Connection method for wireless screen transmission equipment, wireless screen transmission equipment and display equipment |
-
2018
- 2018-01-30 CN CN201810090792.4A patent/CN108259813B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101685323A (en) * | 2008-09-22 | 2010-03-31 | 联想(北京)有限公司 | Computer docking station and switching working method thereof |
| CN206004794U (en) * | 2016-07-27 | 2017-03-08 | 北京东方浩生科技发展有限公司 | WiFi is wirelessly transferred with screen device |
| CN107368273A (en) * | 2017-07-07 | 2017-11-21 | 深圳市海勤科技有限公司 | The key operation local area network wireless of plug and play one passes screen operator, system and method |
| CN107479847A (en) * | 2017-09-29 | 2017-12-15 | 广州视源电子科技股份有限公司 | Screen transmission device and screen transmission system |
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