Method for sharing resources among multiple electronic whiteboards

Abstract

The invention discloses a method for sharing resources among multiple electronic whiteboards, so that a user can share current display contents and external connection signals of other electronic whiteboards on one electronic whiteboard without wired connection and switching. Wherein the electronic whiteboard is provided with a coding module, a communication module and an interaction module; the coding module is used for coding video signals of the electronic whiteboard in an H.264 format and is provided with a stream taking interface for being called by an upper-layer application; the communication module is used for searching other electronic whiteboards in the same network, establishing connection and transmitting data; the interaction module is used for giving access authority to other electronic whiteboards in response to the operation of the user; the resource sharing method comprises the following steps: a plurality of electronic whiteboards establish a private connection pipeline through a communication module and send encryption certificates of each other, a signal sender encodes and encrypts video signals and then sends the video signals to a receiver, and the receiver decrypts the video signals by using the encryption certificates of the opposite parties and then plays the video signals.

Description

Technical Field

[0001] The present invention belongs to the technical field of electronic whiteboards, and particularly relates to a method for sharing resources among multiple electronic whiteboards. Background Art

[0002] An electronic whiteboard is a modern educational technology tool that combines the functions of a traditional blackboard or whiteboard and electronic display technology. Users can directly write and draw graphics on the electronic whiteboard with their fingers or a special pen, and this content can be displayed on a computer screen in real time or projected through a projector. Electronic whiteboards are usually used in teaching, meetings, or presentations to provide an interactive learning and presentation experience.

[0003] In the current market, an electronic whiteboard can only display video signals such as the HDMI, Type-C, and camera of the local machine, or play online videos through a browser. If you want to display the content of the local machine on other electronic whiteboards, generally, two machines are connected by an HDMI or Type-C cable, which is inconvenient to use, and only the current displayed content can be copied and displayed. Summary of the Invention

[0004] The main purpose of the present invention is to provide a method for sharing resources among multiple electronic whiteboards, to solve the problems existing in the prior art, and to allow users to share the current displayed content and external connection signals of other electronic whiteboards on one electronic whiteboard without wired connection and switching.

[0005] To achieve the above object, the solution of the present invention is: A method for sharing resources among multiple electronic whiteboards, wherein the electronic whiteboard is provided with an encoding module, a communication module, and an interaction module; the encoding module is used to encode the video signal of the electronic whiteboard in the H.264 format, and is configured with a stream acquisition interface for upper-layer applications to call; the communication module is used to find other electronic whiteboards in the same network and establish a connection and transmit data; the interaction module is used to respond to the user's operation and grant access rights to other electronic whiteboards; the steps of sharing resources are: After electronic whiteboard A is started, its communication module sends a broadcast signal to attempt to establish a connection with other electronic whiteboards; when electronic whiteboard B receives this signal, it prompts the user in the user interface that there is a device applying for connection; after the user selects to agree, the interaction module of electronic whiteboard B responds to electronic whiteboard A with its own encryption certificate through the communication module, and establishes a private connection pipeline with device A; When the user of the electronic whiteboard A needs to display the display content of the electronic whiteboard B or the connected HDMI signal on the electronic whiteboard A, the electronic whiteboard A notifies the electronic whiteboard B through a private connection pipeline and applies to obtain its current display content or HDMI signal; after receiving the application and agreeing, the encoding module of the electronic whiteboard B encodes and encrypts the current display content or HDMI signal, and transmits the data packet to the electronic whiteboard A through the network; after receiving the data packet, the electronic whiteboard A decrypts and displays it using the encryption certificate during communication establishment.

[0006] The video signal includes at least one of HDMI, Type-C, and camera.

[0007] After adopting the above technical solution, the present invention has the following technical effects: The present invention can enable users to share resources between multiple electronic whiteboards, specifically to display the current display content of the other party or the connected HDMI signal, realize the sharing of screen resources, and does not require wired connection, having the advantages of security and convenience, and can also avoid cumbersome connection and setting. Specific Embodiment

[0008] In order to further explain the technical solution of the present invention, the present invention will be elaborated in detail below through specific embodiments.

[0009] The present invention discloses a method for sharing resources between multiple electronic whiteboards. The electronic whiteboard is provided with an encoding module, a communication module, and an interaction module; wherein, the encoding module is used to encode the video signal of the electronic whiteboard in H.264 format and is configured with a stream acquisition interface for upper-layer applications to call; the communication module is used to find other electronic whiteboards within the same network and establish connections and transmit data; the interaction module is used to respond to user operations, grant access permissions to other electronic whiteboards, etc.; The steps for sharing resources are as follows: After the electronic whiteboard A is started, its communication module sends a broadcast signal to attempt to establish a connection with other electronic whiteboards; when the electronic whiteboard B receives the signal, it prompts the user in the user interface that there is a device applying for connection; after the user selects to agree, the interaction module of the electronic whiteboard B responds to the electronic whiteboard A with its own encryption certificate through the communication module and establishes a private connection pipeline with the device A; When the user of the electronic whiteboard A needs to display the display content of the electronic whiteboard B or the connected HDMI signal on the electronic whiteboard A, the electronic whiteboard A notifies the electronic whiteboard B through a private connection pipeline and applies to obtain its current display content or HDMI signal; after receiving the application and agreeing, the encoding module of the electronic whiteboard B encodes and encrypts the current display content or HDMI signal, and transmits the data packet to the electronic whiteboard A through the network; after receiving the data packet, the electronic whiteboard A decrypts and displays it using the encryption certificate during communication establishment.

[0010] Through the above solution, the present invention can enable users to share resources among multiple electronic whiteboards. Specifically, it can display the current display content of the other party or the HDMI signal it accesses, realizing the sharing of screen resources, and there is no need for wired connection, which has the advantages of safety and convenience. At the same time, it can avoid cumbersome connection and setting.

[0011] The following shows specific embodiments of the present invention.

[0012] The above video signals include at least one of HDMI, Type-C, and camera, etc.

[0013] The above embodiments do not limit the product form and style of the present invention. Any appropriate changes or modifications made by those of ordinary skill in the art shall be regarded as not departing from the patent scope of the present invention.

Claims

1. A method for sharing resources among multiple electronic whiteboards, characterized in that The electronic whiteboard is provided with an encoding module, a communication module and an interaction module; the encoding module is used to encode the video signal of the electronic whiteboard in H.264 format, and is configured with a stream acquisition interface for upper-layer application calls; the communication module is used to find other electronic whiteboards in the same network and establish connections and transmit data; the interaction module is used to respond to user operations and grant access rights to other electronic whiteboards; the steps of sharing resources are: After electronic whiteboard A is started, its communication module sends a broadcast signal to try to establish a connection with other electronic whiteboards; when electronic whiteboard B receives the signal, it prompts the user on the user interface that a device has applied for connection; after the user chooses to agree, the interaction module of electronic whiteboard B responds to electronic whiteboard A through the communication module with its own encrypted credentials and establishes a private connection channel with device A; When the user of electronic whiteboard A needs to display the display content of electronic whiteboard B or the connected HDMI signal on electronic whiteboard A, electronic whiteboard A notifies electronic whiteboard B through a private connection channel and applies to obtain its current display content or HDMI signal; after electronic whiteboard B receives the application and agrees, its encoding module encodes and encrypts the current display content or HDMI signal, and transmits the data packet to electronic whiteboard A through the network; after receiving the data packet, electronic whiteboard A uses the encryption certificate used when establishing communication to decrypt and display it.

2. The method for sharing resources among multiple electronic whiteboards as claimed in claim 1, characterized in that: The video signal includes at least one of HDMI, Type-C and camera.