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

A composite contraband intelligent precision detection equipment and detection method

A detection method and technology for contraband, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of high precision requirements of scanning mechanisms, difficult to popularize applications in the field of security inspection, low utilization rate of ray photons, etc., to achieve fast and accurate Detection and identification, high utilization, small size of equipment

Active Publication Date: 2020-06-02
TONGJI UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology has a low utilization rate of ray photons, requires high precision of the scanning mechanism, takes a long time to detect, and the equipment is complex and expensive
Generally used in scientific research in the laboratory, it is difficult to popularize and apply in the field of security inspection

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 composite contraband intelligent precision detection equipment and detection method
  • A composite contraband intelligent precision detection equipment and detection method
  • A composite contraband intelligent precision detection equipment and detection method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Example 1 Detection method based on the combination of energy dispersive X-ray diffraction and X-ray fluoroscopic imaging

[0047] Such as figure 1 , 2 As shown, a detection method based on the combination of energy dispersive X-ray diffraction and X-ray fluoroscopic imaging, including X-ray fluoroscopic imaging module 4, energy dispersive X-ray diffraction module 9, transmission positioning module 2, photoelectric alignment module 8 and remote control module 11. The package 3 to be tested is placed in the package 1 to be tested, and its internal perspective image is obtained after passing through the X-ray perspective imaging module 4 , and transmitted to the remote control module 11 . The remote control module 11 determines whether the package 3 to be tested contains suspicious substances through image recognition. The photoelectric alignment module 8 takes a picture of the package containing suspicious substances, obtains a picture of its outline, and transmits it...

Embodiment 2

[0055] Embodiment 2 detects paracetamol (paracetamol-C 8 h 9 NO 2 )

[0056] When the diffraction angle θ=5° of paracetamol, the energy dispersive diffraction spectrum is shown in image 3 , Figure (a) is the measured spectrum obtained by using the energy dispersive X-ray diffraction module, and figure (b) is the theoretical energy dispersive diffraction spectrum of paracetamol in the PDF database. Using the combination of the database and the recognition algorithm, it can be determined that the detected substance is paracetamol .

Embodiment 3

[0057] Embodiment 3 detects caffeine (caffeine-C 8 h 10 N 4 o 2 )

[0058] The energy dispersive diffraction spectrum when the diffraction angle θ=4° of caffeine is shown in Figure 4 , Figure (a) is the measured spectrum obtained by using the energy dispersive X-ray diffraction module, and figure (b) is the theoretical energy dispersive diffraction spectrum of caffeine in the PDF database. Using the combination of the database and the recognition algorithm, it can be determined that the detected substance is caffeine.

[0059]The above examples prove that the energy dispersive X-ray diffraction method can accurately identify the types of suspicious substances. The present invention combines energy dispersive X-ray diffraction with X-ray fluoroscopy imaging, uses fast scanning of X-ray fluoroscopic imaging technology to determine the location of suspicious substances, and then uses energy dispersive X-ray diffraction technology to accurately detect suspicious substances, ...

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 device for precisely detecting prohibited goods on the basis of combination of energy dispersive X-ray diffraction and X-ray perspective imaging and a detection method. Thedevice comprises an X-ray perspective module, an energy dispersive X-ray diffraction module, a driving locating module, a photoelectric aligning module and a remote control module; after a package ispreliminarily checked by the X-ray perspective module, the remote control module automatically judges if questionable goods are contained in the package through image recognition; the driving locatingmodule is controlled by the remote control module to send the package containing the questionable goods into the energy dispersive X-ray diffraction module; the questionable goods can be detected bythe energy dispersive X-ray diffraction module and the type of questionable goods can be recognized by the remote control module by automatically analyzing detection data. The device provided by the invention is capable of recognizing the questionable goods in the package; the device is capable of solving the problem that the traditional perspective safety inspection technology cannot distinguishsubstances with similar density and atomic number and cannot accurately recognize the type of substances; the device is capable of greatly increasing the precision degree of inspection of prohibited goods.

Description

technical field [0001] The invention relates to the field of X-ray precision detection, in particular to a compound type contraband intelligent precision detection equipment and detection method. The invention is based on the combination of energy dispersive X-ray diffraction and X-ray perspective imaging. Background technique [0002] Trafficking in contraband such as drugs and explosives seriously endangers social stability and human health. At present, the safety inspection of public transportation places such as airports, railway stations, subway stations, docks, and express logistics still uses X-ray perspective imaging methods, and judgments are made based on the shape and brightness information of the perspective images of packages or luggage to be inspected. However, this technology is based on the attenuation and absorption of X-rays by substances. It has a good detection effect on metals with high atomic numbers, but it has poor detection effects on organic substan...

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): G01N23/20091G01N23/04
CPCG01N23/04G01N23/20091
Inventor 穆宝忠陈异凡王新
Owner TONGJI UNIV
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