CN112415618A

CN112415618A - Security check equipment

Info

Publication number: CN112415618A
Application number: CN201910772857.8A
Authority: CN
Inventors: 刘骏; 曲鲁杰; 郑光荣; 王鹏涛; 辛晨
Original assignee: Wuxi Unicomp Technology Co ltd
Current assignee: Wuxi Unicomp Technology Co ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2021-02-26

Abstract

The invention relates to the technical field of safety inspection, in particular to a safety inspection device, which comprises an X-ray safety inspection machine and a luggage conveying channel penetrating through the X-ray safety inspection machine, wherein an ion mobility spectrometry testing system and an electronic nose system are arranged in the X-ray safety inspection machine, an air blowing port is arranged obliquely above an inlet of the X-ray safety inspection machine, after an object to be inspected enters the luggage conveying channel, the air blowing port blows air towards the detected object, the air suction port on the side surface of the X-ray security inspection machine sucks air with molecules of the detected object into the air transmission pipe, the electronic nose system is arranged on the air transmission pipe, the ion mobility spectrometry test system is communicated with the air transmission pipe, the electronic nose system and the ion mobility spectrometry test system respectively detect the sucked air, the detected object is conveyed by the luggage conveying channel, and the X-ray system in the security inspection machine detects the detected object.

Description

Security check equipment

Technical Field

The invention relates to the technical field of safety inspection, in particular to a safety inspection device.

Background

At present, terrorist attacks and drug smuggling are still rampant internationally, and the life safety of people is seriously threatened. Although X-ray safety inspection devices are installed in many places, these X-ray safety inspection devices can only identify objects by shape and limited material classification, for example, objects such as knives, guns, organic materials, inorganic materials, metals, etc. can be identified, but it is difficult to identify bombs and drugs hidden in general-purpose objects.

Disclosure of Invention

The invention aims to provide security inspection equipment to solve the problem that X-ray security inspection equipment in the prior art is difficult to identify explosives and drugs.

In order to achieve the purpose, the invention provides the following technical scheme: a security inspection device comprises an X-ray security inspection machine and a luggage conveying channel penetrating through the X-ray security inspection machine, wherein an ion mobility spectrometry testing system and an electronic nose system are arranged in the X-ray security inspection machine, an air blowing port is arranged above an inlet of the X-ray security inspection machine in an inclined mode, after an object to be inspected enters the luggage conveying channel, the air blowing port blows air towards the object to be inspected, air with molecules of the object to be inspected is sucked into an air conveying pipe through an air suction port in the side face of the X-ray security inspection machine, the electronic nose system is installed on the air conveying pipe and communicated with the air conveying pipe, the electronic nose system and the ion mobility spectrometry testing system respectively detect the sucked air, the luggage conveying channel conveys the object to be inspected, and the X-ray system in the security inspection machine detects the object to be inspected.

Preferably, the ion mobility spectrometry test system comprises a molecule ionization region and an ion mobility test region, an ion gate is arranged between the molecule ionization region and the ion mobility test region, gas sucked from the air suction port is ionized into ions in the molecule ionization region by X-rays or high-energy ions emitted by a metal sheet with radioactivity or a high-voltage electrode, the ions enter the ion mobility test region after the ion gate is opened, the ions drift in a weak electric field and leave the weak electric field, the ion mobility is calculated according to the drift time for the ions to leave the weak electric field, and whether the detected object contains contraband or not is judged through the ion mobility.

Preferably, the electronic nose system includes a gas sensor, the gas sensor sucks gas with molecules of the detected object, and the gas sensor detects the sucked gas.

Preferably, the air blowing port is communicated with a gas conveying system, and the temperature of gas blown out from the air blowing port is controllable.

Preferably, the gas of the molecules of the detected object enters the ionization region and is close to the X-ray source or close to the metal sheet with radioactivity.

Preferably, the X-ray system comprises an X-ray source and an X-ray detector, and the X-ray detector is arranged at a position opposite to the X-ray source.

Preferably, the X-ray source is a single-ray source and is arranged at the top end of a diagonal line of the security inspection machine; the X-ray sources are double-ray sources, one of the double-ray sources is arranged at the top of the security inspection machine, and the other one of the double-ray sources is arranged on the side face of the security inspection machine.

Compared with the prior art, the invention has the beneficial effects that: the rapid ion mobility spectrometry and the electronic nose system are additionally arranged in the common X-ray security inspection equipment, so that the shapes of articles can be detected, and bombs or drugs hidden in the common articles can be effectively detected and identified, and whether contraband articles such as drugs and explosives exist in the detected articles can be accurately judged by integrating detection results of the three systems, and the defects of the X-ray security inspection equipment are overcome.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of another view angle of the present invention.

In the figure: 1. the device comprises a security inspection machine, 2. an X-ray detector, 3. an air blowing port, 4. a luggage conveying channel, 5. an object to be inspected, 6. an air suction port, 7. an electronic nose system, 8. a gas transmission pipe, 9. an X-ray source, 10. an ion mobility spectrometry system, 101. an ionization region and 102. an ion mobility spectrometry region.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a security inspection device comprises an X-ray security inspection machine 1 and a luggage conveying channel 4 penetrating through the X-ray security inspection machine 1, wherein an ion mobility spectrometry testing system 10 and an electronic nose system 7 are arranged in the X-ray security inspection machine 1, an air blowing port 3 is arranged obliquely above an inlet of the X-ray security inspection machine 1, after an object to be inspected 5 enters the luggage conveying channel 4, the air blowing port 3 blows air towards the object to be inspected 5, air carrying molecules of the object to be inspected 5 is sucked into the air conveying channel 8 through an air suction port 6 on the side surface of the X-ray security inspection machine 1, the electronic nose system 7 is arranged on the air conveying channel 8, the ion mobility spectrometry testing system 10 is communicated with the air conveying channel 8, the electronic nose system 7 and the ion mobility spectrometry testing system 10 respectively detect the sucked air, the object to be inspected 5 is conveyed through the luggage conveying channel 4, and the X-ray system in the security inspection machine 1 detects the object to be inspected 5, the electronic nose system 7 in the application analyzes the sucked gas firstly, judges whether the input gas components contain contraband articles such as drug-related and explosion-related products or not firstly, then the gas is input into the ion mobility spectrometry test system 10, the ion mobility spectrometry test system 10 ionizes the gas into ions firstly, then judges whether the articles contain drugs and explosives or not according to the mobility of the ions, meanwhile, the detected articles 5 on the luggage conveying channel 4 still use X-rays for detection, the X-rays can effectively detect the components of organic matters, inorganic matters, liquid and metal in the detected articles 5 and the shapes of the contraband articles such as fuzes, knives and guns of the explosives, and the like, and can accurately judge whether the detected articles 5 contain the contraband articles such as drugs and explosion or not by integrating the detection results of the X-rays, the gas-sensitive sensors and the ion mobility spectrometry.

Specifically, the ion mobility spectrometry test system 10 includes a molecule ionization region 101 and an ion mobility test region 102, an ion gate is disposed between the molecule ionization region 101 and the ion mobility test region 102, gas sucked in from the air inlet 6 is ionized into ions in the molecule ionization region 101 by X-rays or high-energy ions emitted from a metal sheet with radioactivity or a high-voltage electrode, after the ion gate is opened, the ions enter the ion mobility test region 102, the ions drift in a weak electric field, drift time of the ions in the weak electric field is measured, ion mobility is calculated according to the drift time, and whether the detected object 5 contains contraband articles such as drugs and explosives can be detected according to the ion mobility.

Specifically, the electronic nose system 7 comprises a gas sensor, the gas with the molecules of the detected object 5 is sucked into the air inlet 6, and the gas sensor analyzes the input gas and judges whether the input gas contains prohibited articles such as drug-related and explosive-related articles.

Preferably, the air blowing port 3 is communicated with a gas conveying system, and the temperature of the gas blown out from the air blowing port 3 is controllable, which is beneficial to exciting the molecules of the detected object 5.

Preferably, after entering the ionization region 101, the gas of the molecules of the object 5 to be detected is close to the X-ray source 9 or close to the metal sheet with radioactivity, which is beneficial to the molecules to acquire high-energy ions which are quickly and thoroughly ionized.

Further, the X-ray system includes X ray source 9 and X-ray detector 2, and X-ray detector 2 installs in the relative position of X ray source 9, and wherein, X ray source 9 is single ray source or dual radiation source, and the X ray source 9 setting of single ray source is on the top of security check machine 1 diagonal, and one ray source setting is at the top of security check machine 1 in the dual radiation source, and another ray source setting is in the side of security check machine 1.

The working principle is as follows: when an object 5 to be detected is conveyed into a security inspection machine 1, hot air with certain temperature purification is blown out from an air blowing port 3 obliquely above an inlet of the security inspection machine 1 to excite the object 5 to be detected to emit molecules on the object, an air suction port 6 on the side surface of the object 5 to be detected sucks air carrying the molecules of the object 5 to be detected into an air transmission pipe 8, an air-sensitive sensor in the air transmission pipe 8 analyzes the input air firstly, and whether the input air components contain contraband articles such as drug-related and explosion-related products or not is judged firstly; then the gas with the molecule of the detected object 5 is input into an ionization region 101, the gas is ionized into ions by X-rays or high-energy ions emitted by a metal sheet with radioactivity or a high-voltage electrode in the ionization region 101, the ions are firstly concentrated at the front part of an ion gate, when the ion gate is opened, the ions synchronously enter an ion mobility test region 102, the ions generate drift motion under the action of the weak electric field force in the ion mobility test region 102, the time for various ions to pass through the weak electric field is measured, the mobility of the ions is calculated, and whether the object contains drugs and explosives or not can be detected according to the ion mobility; the detected object 5 is detected by the X-ray, the X-ray can effectively detect the components of organic matters, inorganic matters, liquid and metal in the object and the shapes of the prohibited articles such as fuses, knives and guns of explosives, and the like, and the result of the detection of the X-ray, the gas sensor and the ion mobility spectrometry is integrated, so that whether the detected object 5 contains the prohibited articles such as drugs and explosions can be accurately judged.

The application integrates the electronic nose system 7, the ion mobility spectrometry test system 10 and the X-ray system to detect the detected object 5, and the detection results of the three systems can be integrated to accurately judge whether the detected object 5 contains drugs, explosives and other contraband.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A security device comprising an X-ray security machine (1) and a baggage conveyor channel (4) passing through the X-ray security machine (1), characterized in that: an ion mobility spectrometry test system (10) and an electronic nose system (7) are arranged in the X-ray security inspection machine (1), an air blowing port (3) is arranged obliquely above an inlet of the X-ray security inspection machine (1), after the detected object (5) enters the luggage conveying channel (4), the air blowing port (3) blows air to the detected object (5), the air inlet (6) on the side surface of the X-ray security inspection machine (1) sucks the air with the molecules of the detected object (5) into the air transmission pipe (8), the electronic nose system (7) is installed on the gas transmission pipe (8), the ion mobility spectrometry test system (10) is communicated with the gas transmission pipe (8), the electronic nose system (7) and the ion mobility spectrometry test system (10) respectively detect inhaled gas, the luggage conveying channel (4) conveys the detected articles (5), and the X-ray system in the security inspection machine (1) detects the detected articles (5).

2. A security device according to claim 1, wherein: the ion mobility spectrometry test system (10) comprises a molecule ionization region (101) and an ion mobility test region (102), wherein an ion gate is arranged between the molecule ionization region (101) and the ion mobility test region (102), gas sucked by a gas suction port (6) is ionized into ions in the molecule ionization region (101) by X-rays or high-energy ions emitted by a metal sheet with radioactivity or a high-voltage electrode, after the ion gate is opened, the ions enter the ion mobility test region (102), drift is generated in a weak electric field and leave the weak electric field, the ion mobility is calculated according to the drift time used by the ions leaving the weak electric field, and whether forbidden articles are contained in an object to be tested (5) or not is judged through the ion mobility.

3. A security device according to claim 1, wherein: the electronic nose system (7) comprises a gas sensor, the gas suction port (6) sucks gas with molecules of the detected object (5), and the gas sensor detects the sucked gas.

4. A security device according to claim 1, wherein: the air blowing port (3) is communicated with an air conveying system, and the temperature of air blown out from the air blowing port (3) is controllable.

5. A security device according to claim 1, wherein: after entering the ionization region (101), the gas of the molecules of the detected object (5) approaches the X-ray source (9) or approaches the metal sheet with radioactivity.

6. A security device according to claim 1, wherein: the X-ray system comprises an X-ray source (9) and an X-ray detector (2), wherein the X-ray detector (2) is installed at a position opposite to the X-ray source (9).

7. A security device according to claim 6, wherein: the X-ray source (9) is a single-ray source, and the X-ray source (9) is arranged at the top end of the diagonal of the security inspection machine (1); the X-ray sources (9) are double-ray sources, one of the double-ray sources is arranged at the top of the security inspection machine (1), and the other one of the double-ray sources is arranged on the side face of the security inspection machine (1).