A method of image multi-channel concurrent transmission based on ieee802.11p protocol

A transmission method and multi-channel technology, applied in the field of real-time transmission of image information, can solve problems such as irrelevant research, achieve the effects of avoiding congestion, improving real-time application service quality, and increasing transmission speed

Active Publication Date: 2018-12-21
DALIAN UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For CCH and SCH multi-channel concurrent transmission of image information, there is no relevant research so far

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
  • A method of image multi-channel concurrent transmission based on ieee802.11p protocol
  • A method of image multi-channel concurrent transmission based on ieee802.11p protocol
  • A method of image multi-channel concurrent transmission based on ieee802.11p protocol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0023] see figure 1 , introducing the sending process of the present invention for a multi-channel concurrent image transmission method based on the IEEE802.11p protocol, that is, decomposing a frame of image into 8 sets of data and 1 set of file header data, and encapsulating them into 9 pieces according to the IEEE802.11p protocol format Network data packets are sent sequentially in the order of CCH, SCH1, ..., SCH6 channels.

[0024] see figure 2 , in conjunction with the following specific operation steps of a kind of image multi-channel concurrent transmission method based on IEEE802.11p protocol of the present invention:

[0025] Step 1 Image preprocessing

[0026] In addition to the header information in each frame of image information, the content of e...

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 relates to a multi-channel concurrent image transmission method based on an IEEE802.11p protocol, belonging to the technical field of real-time transmission of image information. The multi-channel concurrent image transmission method comprises the following steps: decomposing image data in each frame to be transmitted into 9 sets of data at first, packaging the 9 sets of data to form 9 network communication messages, and sequentially transmitting the 9 network communication messages according to one original CCH (Control Channel) and six original SCHs (Synchronous Channels) of the IEEE802.11p protocol in a period polling mode. Therefore, the original single-channel transmission of the image information is converted into CCH and SCH multi-channel cooperative concurrent transmission, so that burden is greatly reduced; simultaneously, real-time application requirements of the image information are also ensured; compared with the single-channel transmission, the transmission speed of the multi-channel concurrent transmission method is increased by 3 times; the vulnerability that system messages or other communication messages facing to safety-critical applications are congested while being transmitted by directly utilizing the CCH is avoided; and the service quality of other real-time applications facing to the safety-critical applications is improved.

Description

technical field [0001] The invention relates to an image multi-channel concurrent transmission method based on the IEEE 802.11p protocol, which belongs to the technical field of real-time transmission of image information. Background technique [0002] The IEEE 802.11p protocol divides a total of 75MHz spectrum in the 5.850GHz~5.925GHz frequency band for the application of the Internet of Vehicles, and divides a control channel (Control Channel, CCH) and 6 service channels (Service Channel, SCH) with a spectrum width of 10MHz. Wireless communication services for different businesses. Channels are switched and polled according to a certain cycle (the protocol recommends 100ms). CCH is mainly responsible for the transmission of system communication messages related to channel control in the protocol and communication messages for safety-critical applications with high real-time requirements. SCH is mainly used for communication message transmission of service-type application...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04N17/00
CPCH04L47/12
Inventor 丁男宋彩霞刘明剑张福新谭国真
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap