WO2023103586A1 - Procédé et système de collaboration à distance basés sur le partage de flux auxiliaire de vidéoconférence, et dispositif de stockage - Google Patents

Procédé et système de collaboration à distance basés sur le partage de flux auxiliaire de vidéoconférence, et dispositif de stockage Download PDF

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Publication number
WO2023103586A1
WO2023103586A1 PCT/CN2022/125416 CN2022125416W WO2023103586A1 WO 2023103586 A1 WO2023103586 A1 WO 2023103586A1 CN 2022125416 W CN2022125416 W CN 2022125416W WO 2023103586 A1 WO2023103586 A1 WO 2023103586A1
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WO
WIPO (PCT)
Prior art keywords
terminal
mouse
remote
keyboard
event
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PCT/CN2022/125416
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English (en)
Chinese (zh)
Inventor
赵杰
何贤英
刘玉焘
崔芳芳
石金铭
陈保站
王文超
张延家
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郑州大学第一附属医院
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Publication of WO2023103586A1 publication Critical patent/WO2023103586A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/451—Execution arrangements for user interfaces
    • G06F9/452—Remote windowing, e.g. X-Window System, desktop virtualisation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/14—Session management
    • H04L67/141—Setup of application sessions
    • 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

Definitions

  • the present invention relates to the technical field of video conferencing, in particular to a method, system and storage device for remote collaboration based on video conferencing sharing auxiliary streams.
  • Video conferencing terminals are widely used in daily work communication, academic seminars, training and teaching, etc.
  • Remote collaboration is the local
  • the computer screen is shared to the remote end to realize remote assistance operation, so as to facilitate efficient communication between the two parties involved.
  • the current remote collaboration technology generally adopts the client-server dual-terminal application mode.
  • the client first establishes a connection with the server, and the server opens the desktop sharing permission.
  • the client can remotely perform mouse and keyboard operations, just like locally It is as convenient to operate remotely.
  • the current mainstream remote collaboration software tools are relatively mature, including desktop sharing in QQ software, LookMyPC remote desktop connection software, PCAnywhere sunflower remote control software, sunflower remote control software, etc.
  • the defects and shortcomings of these software tools are reflected in the fact that they must be deployed independently applications and interconnected.
  • the video conferencing terminal has the real-time communication function that both ends can transmit voice and image in real time. However, if one end of the video conference wants to conduct remote collaboration with the other end, it cannot be controlled by the mouse and keyboard, and can only be guided by voice and video. operate.
  • the technical problem to be solved by the present invention is to provide a method for remote collaboration based on video conference sharing auxiliary stream that can realize remote conference collaboration without additional deployment of application programs on both terminals of the video conference.
  • a method for remote collaboration based on video conferencing sharing content including:
  • the video conference establishes a connection with two terminals, wherein one terminal is a local terminal and the other terminal is a remote terminal;
  • the content played on the screen of the video conferencing terminal is sent to the local terminal and the remote terminal in the form of video auxiliary stream;
  • the remote terminal applies for remote collaboration, and after being authorized by the video conferencing terminal, establishes a remote collaboration channel between the remote terminal and the local terminal;
  • the video conferencing terminal After receiving the data packet, the video conferencing terminal parses out the specific trigger event content, converts it into an operation command of the virtual mouse and/or virtual keyboard, and executes it on the local terminal to complete the control corresponding to the remote terminal;
  • the operation instruction set includes operation instructions based on mouse and keyboard action attributes.
  • the operation instructions converted into virtual mouse and/or virtual keyboard and executed include:
  • S502 insert the SendInput function into the INPUT structure, connect it in series to the input stream of the keyboard or mouse, and send it to the thread;
  • step S502 during the process of inserting the SendInput function into the INPUT structure, user interface privilege isolation constraints are set to allow the application to only inject event input into the application at or below the integrity level.
  • the SendInput function is inserted into the INPUT structure and connected in series to the input stream of the keyboard or mouse, specifically including:
  • step S5021 determine whether it is a mouse event or a keyboard event, if it is a mouse event, go to step S5022, otherwise go to step S5023;
  • the operation instruction is composed of data in json format, including: an event type, and a key value corresponding to the event type.
  • the event types include: mouse button events, mouse movement events, mouse touch events and keyboard button events;
  • the key values corresponding to mouse button events include: left button, middle button and right button;
  • the key values corresponding to the mouse movement event include: screen width, screen height, mouse coordinate x and mouse coordinate y;
  • the key value corresponding to the mouse touch event includes: finger movement and finger coordinate information group;
  • the key value corresponding to the keyboard key event includes: keyboard key value.
  • the mouse coordinate x is the x coordinate of the mouse relative to the screen width
  • the mouse coordinate y is the y coordinate of the mouse relative to the screen height
  • Finger actions include: the first finger is pressed, the last finger is released, the non-first finger is pressed, the non-last finger is released, and the finger moves;
  • the coordinate information group of the finger includes: the abscissa of the finger and the ordinate of the finger.
  • the remote collaboration system based on video conferencing sharing auxiliary stream includes a local terminal, a remote terminal and a video conferencing terminal, and is characterized in that:
  • the video conferencing terminal is used to send the content displayed on the screen to the local terminal and the remote terminal in the form of video auxiliary stream; including:
  • An operation instruction set which is used to establish operation instructions based on mouse and keyboard action attributes
  • An authorization module configured to authorize the remote terminal in response to the remote collaboration request of the application module, and establish a remote collaboration channel for the remote terminal and the local terminal after authorization;
  • the data analysis module is used to receive and analyze the data packet of the data generation module, and generate the simulation operation instruction after analyzing the content of the specific trigger event;
  • the local operation generating module is used to convert the trigger event content parsed by the data parsing module into operation instructions of the virtual mouse and/or virtual keyboard and display them on the local display interface of the local terminal;
  • the remote terminal includes:
  • the application module is used to initiate a remote collaboration request to the video conferencing terminal
  • the remote operation module on the received screen, operates through the mouse and/or keyboard;
  • the data generation module is used to generate corresponding trigger event content according to the operation instruction set from the operation of the remote operation module and encapsulate it into a set of commands and send it to the video conference terminal;
  • the screen image is a display interface of the remote terminal, and is used to display screen playback content.
  • the local terminal includes:
  • the local display interface is used to display the playback content of the video conferencing terminal.
  • the storage device stores a plurality of instructions, wherein the instructions are adapted to be loaded by the processor and execute the method for remote collaboration based on video conference sharing auxiliary stream as described above.
  • the method and system for remote collaboration based on video conferencing sharing auxiliary stream provided by the present invention establishes a line connection between two terminals, and transmits the video conference content of the local terminal to the remote terminal in the form of video auxiliary stream; the remote terminal When it is necessary to mark the content of the meeting, the user of the remote terminal applies for remote collaboration.
  • the remote collaboration channel of the video conference After being authorized by the video conference terminal, the remote collaboration channel of the video conference is established; the remote terminal encapsulates the content of the trigger event corresponding to the operation command through the operation of the local mouse and keyboard After receiving the data packet, the video conference terminal parses out the specific trigger event content, converts it into virtual mouse and/or virtual keyboard operation instructions and executes them on the local terminal, through the virtual mouse and /or the virtual keyboard completes the local control and operation, including marking and sharing the screen, thereby realizing the function of remote collaboration, which is extremely practical.
  • FIG. 1 is a schematic flowchart of a method for remote collaboration based on video conference sharing auxiliary stream provided by Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of a remote collaboration system based on video conference sharing auxiliary stream provided by Embodiment 1 of the present invention
  • FIG. 3 is a schematic flowchart of step S50 in the method for remote collaboration based on video conference sharing auxiliary stream provided by Embodiment 2 of the present invention
  • FIG. 4 is a schematic flowchart of step S502 in Embodiment 2 of the present invention.
  • Fig. 5 is a schematic diagram of equipment deployment during the use of the present invention.
  • Fig. 6 is a data flow chart in the process of using the present invention.
  • 10 is a local terminal, 20 is a remote terminal, and 30 is a video conferencing terminal;
  • 201 is an application module
  • 202 is a remote operation module
  • 203 is a data generation module
  • 204 is a screen image
  • 301 is an operation instruction set
  • 302 is an authorization module
  • 303 is a data analysis module
  • 304 is a local operation generation module.
  • the remote collaboration method based on video conference sharing content includes:
  • the video conference establishes a connection with two terminals, wherein one terminal is a local terminal and the other terminal is a remote terminal;
  • the content played on the screen of the video conferencing terminal is sent to the local terminal and the remote terminal in the form of video auxiliary stream;
  • the remote terminal applies for remote collaboration, and after being authorized by the video conferencing terminal, establishes a remote collaboration channel between the remote terminal and the local terminal;
  • the video conferencing terminal After receiving the data packet, the video conferencing terminal parses out the specific trigger event content, converts it into an operation command of the virtual mouse and/or virtual keyboard, and executes it on the local terminal to complete the control corresponding to the remote terminal;
  • the operation instruction set includes operation instructions based on mouse and keyboard action attributes.
  • json JavaScriptObjectNotation
  • json is a lightweight data exchange format based on a subset of ECMAScript; json uses a text format that is completely independent of language, but also uses C, C++, C#, Java, JavaScript, Perl, Python, etc. are similar to the habits of the C language family.
  • the operation instruction is composed of data in json format, including: event type, and a key value corresponding to the event type.
  • event types include: mouse button event, mouse movement event, mouse touch event and keyboard button event.
  • the key values corresponding to mouse button events include: left button, middle button and right button; the specific data in json format can be realized by the following code:
  • buttons 1//Mouse event type, 1 left button, 2 middle button, 3 right button
  • the key value corresponding to the mouse movement event includes: screen width, screen height, mouse coordinate x and mouse coordinate y; wherein: mouse coordinate x is the x coordinate of the mouse relative to the screen width; mouse coordinate y is the mouse coordinate relative to The y coordinate of the screen height; its specific data in json format can be realized by the following code:
  • the key value corresponding to the mouse touch event includes: finger motion and finger coordinate information group; wherein, the finger motion includes: the first finger is pressed, the last finger is released, the non-first The finger is pressed, the non-last finger is released, and the finger is moved; the coordinate information group of the finger includes: the abscissa of the finger and the ordinate of the finger; the specific data in json format can be realized by the following code:
  • the key value corresponding to the keyboard key event includes: a key value of the keyboard.
  • the invention also provides a system for remote collaboration based on video conference sharing auxiliary stream.
  • the remote collaboration system based on video conference sharing auxiliary stream includes a local terminal 10, a remote terminal 20 and a video conference terminal 30;
  • the video conferencing terminal 30 is used to send the content displayed on the screen to the local terminal 10 and the remote terminal 20 in the form of a video auxiliary stream; including:
  • An operation instruction set 301 configured to establish operation instructions based on mouse and keyboard action attributes
  • the authorization module 302 is configured to authorize the remote terminal 20 in response to the remote collaboration request of the application module 201, and establish a remote collaboration channel for the remote terminal 20 and the local terminal 10 after authorization;
  • the data parsing module 303 is used for receiving the data packet of the data generating module 203 and parsing, after parsing out the specific trigger event content, generating the simulation operation instruction;
  • the local operation generation module 303 is used to convert the trigger event content analyzed by the data analysis module 303 into an operation instruction of a virtual mouse and/or a virtual keyboard and display it on the local display interface 101 of the local terminal 10;
  • Described remote terminal 20 comprises:
  • An application module 201 configured to initiate a remote collaboration request to the video conference terminal 30;
  • the remote operation module 202 on the received screen image 204, operates through the mouse and/or keyboard;
  • the data generation module 203 is used to generate corresponding trigger event content according to the operation instruction set by the operation of the remote operation module 202 and encapsulate it into a set of commands and send it to the video conference terminal 30;
  • the screen image 204 is a display interface of the remote terminal, and is used for displaying content to be played on the screen.
  • the local terminal 10 includes:
  • the local display interface 101 is used to display the playback content of the video conferencing terminal 30 .
  • the method and system for remote collaboration based on video conferencing sharing auxiliary stream provided in this embodiment, establishes a line connection between two terminals, and transmits the video conference content of the local terminal to the remote terminal in the form of video auxiliary stream; When the terminal needs to mark the content of the meeting, the user of the remote terminal applies for remote collaboration.
  • a remote collaboration channel for the video conference After being authorized by the video conference terminal, a remote collaboration channel for the video conference is established; After being encapsulated into a data packet, it is sent to the video conference terminal; after receiving the data packet, the video conference terminal parses out the specific trigger event content, converts it into virtual mouse and/or virtual keyboard operation instructions and executes them on the local terminal, through the virtual mouse And/or the virtual keyboard to complete the local control and operation, including marking and sharing the screen, so as to realize the function of remote collaboration, which is extremely practical.
  • step S50 the operation instructions of the virtual mouse and/or virtual keyboard are converted and executed, specifically including:
  • S502 insert the SendInput function into the INPUT structure, connect it in series to the input stream of the keyboard or mouse, and send it to the thread;
  • step S502 during the process of inserting the SendInput function into the INPUT structure, user interface privilege isolation constraints are set to allow the application to only inject event input into the application at or below the integrity level.
  • UIPI User Interface Privilege Isolation, user interface privilege isolation
  • this function inserts the INPUT structure into the keyboard or mouse input stream and sends it to the thread.
  • the system or hook listener intercepts and processes the event from the thread, and finally generates mouse and keyboard events.
  • step S502 the SendInput function is inserted into the INPUT structure and connected in series to the input stream of the keyboard or mouse, specifically including:
  • step S5021 judging whether it is a mouse event or a keyboard event, if it is a mouse event, go to step S5022, otherwise go to step S5023;
  • INPUT the specific structure of INPUT is as follows:
  • event type event type, 0 mouse event, 1 keyboard event
  • the present invention also provides a storage device, wherein a plurality of instructions are stored, wherein the instructions are suitable for being loaded by a processor and executing the above-mentioned remote collaboration method based on video conference sharing auxiliary stream.
  • the storage device may be a computer-readable storage medium, and may include: ROM, RAM, magnetic disk or optical disk, and the like.
  • Fig. 5 is a schematic diagram of device deployment during the use of the present invention.
  • the remote collaboration system based on video conferencing sharing auxiliary stream of the present invention is composed of dual-end devices (local terminal and remote terminal) and software, and the local terminal can be Including the video conferencing terminal and the local computer, the remote terminal can include: remote computer and video playback software: among them, the systems of the local terminal and the remote terminal are connected through the network (that is, the line connection between the two terminals is established), but the video The conference terminal and the local computer network are not necessarily connected to the network, but can only share computer screen information through VGA or HDMI connection.
  • Fig. 6 is the data flow chart in the use process of the present invention.
  • receiver remote terminal moves mouse on the picture by operating mouse, forms mouse moving event, And generate the json data packet of the mobile event, and send it to the initiator (local terminal) through the socket channel;
  • the originator receives the json data and parses it to find out the specific event. Through the SendInput interface provided by windows, fills the specific content of the event into the INPUT data structure, passes it into SendInput, and sends the event to the system thread. Get the event from the thread and process it, and finally move the mouse to the specified position.
  • the local display interface of the local terminal can be connected with the video conferencing terminal through VGA or HDMI, and at the same time, the screen playback content of the video conferencing terminal is sent to the local terminal and the remote terminal in the form of auxiliary video stream; so that the present invention
  • the local terminal and the remote terminal may not be in the same network;
  • the remote terminal When in use, the remote terminal first applies for collaboration, and after the video conferencing terminal accepts and authorizes the request, a remote collaboration channel between the remote terminal and the local terminal is established; the virtual keyboard and virtual mouse operations based on the video auxiliary stream of the local terminal are enabled to realize local and local cooperation. Annotation for screen sharing between remote endpoints.
  • the roles (local terminal or remote terminal) between the two terminals can be interchanged, and the party applying for remote collaboration is regarded as a remote terminal, so that the other party can be displayed synchronously after being marked by any party.
  • the two terminals do not need to deploy independent applications, and the operation is convenient.
  • connection or integrated; may be mechanically connected, may also be electrically connected; may be directly connected, may also be indirectly connected through an intermediary, may be an internal communication between two components or an interactive relationship between two components, unless otherwise There are clear limits. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
  • modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Information Transfer Between Computers (AREA)

Abstract

L'invention concerne un procédé et un système de collaboration à distance basés sur le partage d'un flux auxiliaire d'une vidéoconférence, et un dispositif de stockage, qui sont applicables au domaine des vidéoconférences. Le procédé consiste à : établir par vidéoconférence une connexion avec deux terminaux ; envoyer, sous la forme d'un flux auxiliaire vidéo, un contenu de lecture d'écran d'un terminal de vidéoconférence à un terminal local et à un terminal distant ; le terminal distant sollicite une collaboration à distance et, après autorisation, établir un canal de collaboration à distance entre le terminal distant et le terminal local ; après réalisation d'une opération, au moyen d'une souris et/ou d'un clavier, sur une image d'écran reçue par le terminal distant, le terminal distant encapsule un contenu d'événement déclencheur correspondant à une instruction d'opération dans un paquet de données, puis envoie le paquet de données au terminal de vidéoconférence ; et après réception du paquet de données, le terminal de vidéoconférence analyse le contenu d'événement déclencheur spécifique, puis le convertit en une instruction d'opération pour une souris virtuelle et/ou un clavier virtuel, et exécute l'instruction d'opération sur le terminal local. Par conséquent, deux terminaux dans une vidéoconférence peuvent à la fois réaliser une collaboration de conférence à distance sans le déploiement supplémentaire d'un programme d'application.
PCT/CN2022/125416 2021-12-09 2022-10-14 Procédé et système de collaboration à distance basés sur le partage de flux auxiliaire de vidéoconférence, et dispositif de stockage WO2023103586A1 (fr)

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CN202111497395.7 2021-12-09

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CN114756318A (zh) * 2022-04-20 2022-07-15 杰显通计算机系统(深圳)有限公司 视频协作管控系统及方法
CN117389493A (zh) * 2022-07-05 2024-01-12 中兴通讯股份有限公司 显示屏幕远程共享的处理方法、设备及存储介质
CN115910261A (zh) * 2023-01-05 2023-04-04 四川智康科技有限责任公司 一种安全的电子病历远程调阅和操作方法

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