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A method and device for forwarding pictures

A technology of a forwarding device and a forwarding method, applied in the field of multimedia interaction, can solve the problems of control and adjustment, slow picture download, network congestion, etc.

Inactive Publication Date: 2018-01-02
TVM BEIJING EDUCATION SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the large number of display devices in this method, when the teacher slides to display the next picture, all the display devices are connected to the service controller to download this picture, which cannot be controlled and adjusted according to the network traffic, which may easily cause instant network congestion. A large number of packet loss retries, slow image downloads, and decreased effective network utilization

Method used

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  • A method and device for forwarding pictures
  • A method and device for forwarding pictures
  • A method and device for forwarding pictures

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Embodiment Construction

[0068] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0069] The system adopted in the picture forwarding method of the present invention includes a demonstration device, a central control device and a display device, the demonstration device is used for operation and control, and sends the picture identification information to the central control device, and the central control device is used to forward the picture identification information to the display Device, and according to network traffic control display device download pictures, display device is used to download pictures according to the instructions issued by the central control device.

[0070] see figure 1It is a flowchart of a picture forwarding method i...

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Abstract

The invention discloses a picture forwarding method and device. The method includes: obtaining the current network traffic value; obtaining a list of online display devices; determining the number N of instruction sending according to the current network traffic value and the list of online display devices; The device sends a picture download instruction, and the picture download instruction is used to instruct the online display device that has received the picture download instruction to download the picture. In this embodiment, the number N of instruction sending is determined according to the current network traffic value and the online display device list, and the picture download instruction is sent to N online display devices in the online display device list each time, which can be dynamically adjusted based on the previous network traffic value The transmission of the picture download command and the download of the picture of the online display device avoid network congestion, thereby improving the reliability of picture forwarding and increasing the speed of picture forwarding.

Description

technical field [0001] The present invention relates to the technical field of multimedia interaction, in particular to a picture forwarding method and device. Background technique [0002] In teaching and exhibitions, it is usually necessary to display and forward pictures like display equipment. Taking teaching as an example, when teachers are giving lectures or lectures, they usually upload teaching plans to the service controller, and the service controller converts these teaching plans into Multiple pictures, every time the teacher slides a picture on the demonstration device, the student's display device will also download and display this picture on the service controller through the instruction sent, so that students can use the display device to watch this picture, Answering questions, writing, etc. on this picture can also be sent back to the teacher through the service controller for the teacher to review. [0003] However, due to the large number of display devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
Inventor 张俊丰
Owner TVM BEIJING EDUCATION SCI & TECH CO LTD