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

Unmanned aerial vehicle data link time delay test method based on multiple links and multiple channels

A technology of time delay testing and unmanned aerial vehicles, which is applied in sustainable communication technology, radio transmission system, transmission monitoring, etc., can solve problems such as dependence on time synchronization, cumbersome testing, complex data link delay testing methods, etc., and achieve generalization high degree of effect

Pending Publication Date: 2022-08-05
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing data link delay test methods are relatively complicated, or rely on the time synchronization between the airborne and the ground, or need to write a special test program and provide an additional environment, the test is cumbersome, which is not conducive to the test of data link delay
For example, the article "Research on UAV Data Link Delay Test Method" published in "Information System Engineering" proposed a delay test system based on PCM (Pulse Code Modulation) architecture, but in terms of multi-link multi-channel test , have not yet seen the relevant test method

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
  • Unmanned aerial vehicle data link time delay test method based on multiple links and multiple channels
  • Unmanned aerial vehicle data link time delay test method based on multiple links and multiple channels
  • Unmanned aerial vehicle data link time delay test method based on multiple links and multiple channels

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention will be further described below with reference to the accompanying drawings.

[0040] like figure 1 As shown, the usual UAV data link includes line-of-sight and satellite relay data link, and the delay is inherent, mainly including radio wave propagation test and link equipment processing delay. The total link delay also includes the link transmission frame cycle time, the communication time of interface data, and the delay caused by the asynchronous clock between devices.

[0041] UAV link uplink transmission processing delay includes data framing processing, encryption, error correction coding delay; receiving processing delay mainly includes error correction decoding, decryption and deframe output delay.

[0042] The downlink transmission processing delay of the UAV link includes data framing processing, encryption, and error correction coding delay; the downlink receiving processing delay mainly includes error correction decoding, decryption a...

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 provides an unmanned aerial vehicle data link time delay test method based on multiple links and multiple channels, and relates to the technical field of unmanned aerial vehicle data links and unmanned aerial vehicle ground stations. According to the method, the time delay test of the uplink and downlink data links of the unmanned aerial vehicle is carried out, the time delay test of different links of a sight distance link and a satellite communication relay link is realized, the time delay test of different physical transmission protocols of an asynchronous serial port and network communication is realized, and the method is suitable for an unmanned aerial vehicle data link time delay test scene.

Description

technical field [0001] The invention relates to the technical fields of UAV data links and UAV ground stations, and can also be applied to other system delay testing fields, in particular to a UAV data link delay testing method, which is suitable for the time delay testing of UAV data links. Extended test scenario. Background technique [0002] The data link is one of the main components of the UAV system. The UAV ground station sends remote control commands and data to the UAV through the uplink wireless link, and the UAV sends the UAV back to the measurement and control station through the downlink wireless link. Status data and video reconnaissance information from mission sensors. [0003] The UAV data link delay is a key indicator of the UAV system. The UAV system design must consider the existing time delay problem to ensure that the ground station command is sent to the UAV with low delay, and the UAV status and The reconnaissance information can be transmitted to t...

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 Applications(China)
IPC IPC(8): H04B17/309H04B7/185H04L43/0852
CPCH04B17/309H04B7/18506H04L43/0852Y02D30/70
Inventor 何文志宗茂高达刘厦李思男赵豆张伟吴俊成王程坤
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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