Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Short message image stepping transmission method based on Beidou one-key alarm

A transmission method and short message technology, applied in the field of short message image step-by-step transmission based on Beidou one-key alarm, can solve problems such as packet loss in data transmission, reduce the amount and number of transmission data, and improve timeliness.

Inactive Publication Date: 2019-07-12
河南大华安防科技股份有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a short message image step-by-step transmission method based on the Beidou one-key alarm, based on the SIP-based Beidou satellite short message system transmission image technology and the transmission strategy adopted, which solves the problem of Beidou The problem of packet loss in satellite system data transmission, and the real-time update of image data in the narrow-bandwidth communication environment of Beidou have been improved to the minute level, making it possible to update the remote sensing image data with a large amount of data in near real-time, making the communication function of Beidou more advanced. Great play, has important application value

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
  • Short message image stepping transmission method based on Beidou one-key alarm
  • Short message image stepping transmission method based on Beidou one-key alarm
  • Short message image stepping transmission method based on Beidou one-key alarm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0024] see Figure 1-5 , a step-by-step transmission method for short message images based on Beidou one-key alarm, comprising the following steps: using a ratio method at the sending end to detect changes in image blocks in SIP to determine whether the image needs to be updated; The image blocks are processed by compression and packaging, etc., and then sent by Beidou to the receiving end to update the image data for the receiving end.

[0025] It also includes a remote sensing image change detection method: when performing change monitoring, first set the threshold k0=0.75, and compare the percentage value k and k0 of the change information and the original informa...

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 short message image stepping transmission method based on Beidou one-key alarm, which relates to the technical field of Beidou satellite short messages, and comprises the following steps of: performing change detection on an image block in an SIP (Session Initiation Protocol) at a transmitting end by adopting a ratio method, and determining whether to perform data updating on an image or not; and after processing of compression, packaging and the like, sending the image blocks needing to be updated to the receiving end by the Beidou to update the image data for the receiving end. The invention discloses a Beidou satellite short message system image transmission technology based on SIP and a transmission strategy adopted by the Beidou satellite short message system image transmission technology. According to the invention, the problem of packet loss in data transmission of the Beidou satellite system is well solved, and the real-time performance of image dataupdating in a Beidou narrow bandwidth communication environment is improved to the minute level, so that the near-real-time updating of remote sensing image data with a large data volume becomes possible, the Beidou communication function is brought into greater play, and the application value is important.

Description

technical field [0001] The invention relates to the technical field of Beidou satellite short messages, in particular to a step-by-step transmission method of short message images based on the Beidou one-key alarm. Background technique [0002] An important feature of the Dou satellite navigation and positioning system that is different from GPS is that in addition to providing positioning services, it can also provide short message communication services, but there are differences in the service time intervals of different levels of users and the amount of data transmitted at a time. Therefore, in terms of the data transmission application of the Beidou satellite short message system, there are also a few scholars in China who have carried out relevant research. For example, Zhang Dong et al. used the Beidou satellite for file transmission in 2005; Cheng Fanglin et al. agreement was discussed. However, due to the limitation of Beidou satellite communication bandwidth and s...

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): H04B7/185H04L29/06H04N1/00H04L1/16H04L1/18
CPCH04B7/1851H04B7/18582H04N1/00103H04L1/1809H04L1/1835H04L1/1607H04L65/1104
Inventor 轩素辉赵阳阳生拥宏于绘娟张瑞
Owner 河南大华安防科技股份有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com