Check patentability & draft patents in minutes with Patsnap Eureka AI!

An adaptive s-parameter matching method for liquid dangerous goods detection

A technology of parameter matching and dangerous goods, which is applied in measuring devices, material analysis by means of microwaves, instruments, etc., can solve the problem that dangerous goods detection methods cannot adapt to security checks in decentralized public places, etc., so as to improve computing efficiency, reduce costs, and reduce Effect of Hardware Requirements

Active Publication Date: 2020-02-18
CHENGDU UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the existing dangerous goods detection methods cannot adapt to the security inspection of decentralized public places

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
  • An adaptive s-parameter matching method for liquid dangerous goods detection
  • An adaptive s-parameter matching method for liquid dangerous goods detection
  • An adaptive s-parameter matching method for liquid dangerous goods detection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The technical solution of the present invention will be further described in detail below in conjunction with specific data and drawings, but the protection scope of the present invention is not limited to the following description.

[0041] Before starting to test liquid dangerous goods, the system will automatically measure a set of S-parameter curves of air in order to obtain the current ambient noise. like figure 1 shown.

[0042] Two sets of samples were tested: sample 1 was water and sample 2 was gasoline. The S-parameter curves of the two groups of samples are as follows: figure 2 shown. Among them, picture a is sample 2, picture b is sample 1, the same below.

[0043] Check the data of two sets of samples: figure 2 , as shown in the parameter display boxes on the right of a and b, we have completely collected 201 data. Therefore, the data in this group are complete. Then check the type of each set of data. As the graph shows, all data have values ​​le...

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 an S parameter matching method suitable for the public safety hazardous material monitoring field, particularly to a method for detecting liquid hazardous materials through data preprocessing and S parameter matching. In the prior art, the existing X-ray detector has disadvantages of high false alarm rate and high false negative rate, is only suitable for the primary screening of liquid-state hazardous materials in airports, train stations and other key security areas, and is not suitable for buses and other dispersed public places. A purpose of the present invention is to solve the problems in the prior art. According to the present invention, the S parameter of a current object and the S parameter of air in a current environment are detected in a security inspection site, and the danger coefficient of the monitored liquid is determined by using the difference in the fluctuation of the S parameter curve through the S parameter matching method so as to detect the liquid; and the method is used for detecting liquid hazardous materials, and has advantages of significantly-improved accuracy and high detection efficiency.

Description

technical field [0001] The patent of the invention belongs to the field of public safety monitoring, and specifically relates to a centimeter-wave liquid dangerous goods detection method. Background technique [0002] Since the 1990s, terrorist attacks have spread worldwide. With the strengthening of security checks in key areas such as airports and railway stations. Terrorists are more likely to carry out terrorist attacks in crowded but dispersed public places such as buses. However, because scattered public places such as buses have the characteristics of high population density, frequent transfers, short transfer time, strong openness, and small space, they do not have the conditions to install large-scale dangerous goods detection equipment like airports and railway stations. Therefore, it is of great practical significance to invent an efficient, convenient, low-cost, and small-occupied liquid hazard detection method. [0003] The existing relatively mature detectio...

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): G01N22/00
CPCG01N22/00
Inventor 周冬梅包桦楠李小峰张凯李正大
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com