Unlock instant, AI-driven research and patent intelligence for your innovation.

Data packet recovery method, device and system

A recovery method and data packet technology, applied in the field of data transmission, can solve problems such as low video frame transmission efficiency, and achieve the effects of solving low video frame transmission efficiency, improving video frame transmission efficiency, and avoiding retransmission of to-be-transmitted video frames.

Pending Publication Date: 2021-06-11
XIAN WANXIANG ELECTRONICS TECH CO LTD
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a data packet recovery method, device and system to at least solve the technical problem in the related art that the video frame transmission efficiency is low due to the automatic request for retransmission mechanism in a weak network environment with high delay

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Data packet recovery method, device and system
  • Data packet recovery method, device and system
  • Data packet recovery method, device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] According to an embodiment of the present invention, an embodiment of a data packet recovery method is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0030] figure 1 is a flow chart of a data packet recovery method according to an embodiment of the present invention, such as figure 1 As shown, the data packet recovery method can be applied to the sending end, and specifically includes the following steps:

[0031] Step S102, determining the packet data packet of the video frame to be transmitted and the redundant data packet corresponding to the packet data packet;

[0032] Step S104, sequentially sending the packet data packet and the redundant data packet...

Embodiment 2

[0047] According to an embodiment of the present invention, another embodiment of a data packet recovery method is provided, figure 2 is a flow chart of another data packet recovery method according to an embodiment of the present invention, such as figure 2 As shown, the data packet recovery method can be applied to the receiving end, and specifically includes the following steps:

[0048] Step S202, receiving the packet data packet of the video frame to be transmitted sent by the sending end and the redundant data packet corresponding to the packet data packet;

[0049] Step S204, when the number of lost data packets is less than or equal to the number of redundant data packets, restore the lost data packets in the video frame to be transmitted.

[0050] The video frame to be transmitted includes at least one group of packet data packets. In the specific implementation process, the number of packet data packets in the video frame to be transmitted may be determined accor...

Embodiment 3

[0060] According to another aspect of the embodiments of the present invention, a device for recovering data packets is also provided, image 3 is a schematic diagram of a data packet recovery device according to an embodiment of the present invention, such as image 3 As shown, the data packet recovery device includes: a determining module 32 and a sending module 34 . The data packet recovery device will be described in detail below.

[0061] Determining module 32, is used for determining the packet data packet of video frame to be transmitted and the redundant data packet corresponding to packet data packet; The redundant data packets are sent to the receiving end, so that the receiving end recovers the lost data packets in the video frame to be transmitted when the number of lost data packets is less than or equal to the number of redundant data packets.

[0062] In the above embodiment, the data packet recovery device may send the packet data packet of the video frame to...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a data packet recovery method, device and system. The method comprises the following steps: determining a grouped data packet of a video frame to be transmitted and a redundant data packet corresponding to the grouped data packet; and sequentially sending the grouped data packets and the redundant data packets corresponding to the grouped data packets to a receiving end, so that the receiving end recovers the lost data packets in the to-be-transmitted video frame under the condition that the number of the lost data packets is smaller than or equal to the number of the redundant data packets. According to the invention, the technical problem of low video frame transmission efficiency caused by the adoption of an automatic request retransmission mechanism in a high-delay weak network environment in the prior art is solved.

Description

technical field [0001] The present invention relates to the technical field of data transmission, in particular to a data packet recovery method, device and system. Background technique [0002] In the process of transmitting video streams over the network, due to network jitter, delay, packet loss, out-of-sequence and other reasons, it will cause blurred screens and freezes on the video screen. Generally, automatic repeat-request (Automatic Repeat-ReQuest, ARQ for short) mechanism improves these situations, but this mechanism is not effective in a weak network environment with high delay. For example, in a weak network environment with high delay, it is necessary to retransmit video frames many times, which will inevitably greatly reduce Frame transmission efficiency. [0003] Aiming at the problem of low video frame transmission efficiency caused by the automatic request retransmission mechanism in the high-delay weak network environment mentioned above, no effective solu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04N21/238H04N21/438H04N21/6375
CPCH04N21/6375H04N21/4381H04N21/238
Inventor 朱英龙
Owner XIAN WANXIANG ELECTRONICS TECH CO LTD