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Title:
LIQUID DETECTION METHOD AND DEVICE AND SECURITY INSPECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/121444
Kind Code:
A1
Abstract:
Provided are a liquid detection method and device and a security inspection system, which relate to the field of security inspection. The liquid detection method comprises: a dual energy X-ray detector acquiring detection data of a liquid to be detected; determining a base material decomposition coefficient of the liquid to be detected on the basis of predetermined base material information and the detection data of the liquid to be detected; and determining an valid atomic number and characteristic density of the liquid to be detected on the basis of the base material decomposition coefficient of the liquid to be detected. By means of the method, a base material decomposition coefficient of a liquid to be detected can be obtained on the basis of predetermined base material information and using ray detection data obtained by a dual energy detector, and a valid atomic number and characteristic density of the liquid to be detected can be obtained on the basis of the base material decomposition coefficient, realizing identification of the liquid. Due to the high efficiency and large detection range of dual energy X-ray detection, identification of liquids in multiple containers can be achieved at the same time, thereby shortening detection time and improving the efficiency of liquid security detection.

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Inventors:
WANG QIANG (CN)
LIAO YUHUA (CN)
WU SHANSHAN (CN)
ZHANG JINYU (CN)
LIU JINGJING (CN)
Application Number:
PCT/CN2017/118048
Publication Date:
July 05, 2018
Filing Date:
December 22, 2017
Export Citation:
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Assignee:
NUCTECH CO LTD (CN)
International Classes:
G01N23/04; G01N5/00
Foreign References:
CN101303317A2008-11-12
CN101629916A2010-01-20
CN101509880A2009-08-19
CN102095663A2011-06-15
CN105067644A2015-11-18
US20090168958A12009-07-02
US20110189718A12011-08-04
Other References:
CHANG Q., ET AL.: "An algorithm for extracting effective atomic number", vol. 31, no. 2, 28 February 2014 (2014-02-28)
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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