CN115389602A - Security inspection device and method with trace detection function - Google Patents
Security inspection device and method with trace detection function Download PDFInfo
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- CN115389602A CN115389602A CN202210370627.0A CN202210370627A CN115389602A CN 115389602 A CN115389602 A CN 115389602A CN 202210370627 A CN202210370627 A CN 202210370627A CN 115389602 A CN115389602 A CN 115389602A
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
- 238000007689 inspection Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 18
- 150000002500 ions Chemical class 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 239000013618 particulate matter Substances 0.000 claims description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000001819 mass spectrum Methods 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 7
- 238000011065 in-situ storage Methods 0.000 description 6
- 239000003814 drug Substances 0.000 description 5
- 229940079593 drug Drugs 0.000 description 5
- 238000005070 sampling Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001601 dielectric barrier discharge ionisation Methods 0.000 description 1
- 238000000375 direct analysis in real time Methods 0.000 description 1
- 238000012063 dual-affinity re-targeting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000001871 ion mobility spectroscopy Methods 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V9/00—Prospecting or detecting by methods not provided for in groups G01V1/00 - G01V8/00
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Abstract
The invention provides a security inspection device with a trace detection function and a method thereof, wherein the security inspection device with the trace detection function comprises an ion source and a mass spectrum analyzer; the image acquisition unit is used for acquiring an image of the object to be detected on the security inspection instrument and sending the image to the control unit; the control unit is used for outputting an ionization track according to the image of the object to be detected; the three-dimensional moving unit is used for moving the ion source according to the ionization track; the transport unit is used for transporting ions to the mass spectrometer. The invention has the advantages of automation, low cost and the like.
Description
Technical Field
The invention relates to security inspection, in particular to a security inspection device with a trace detection function and a method thereof.
Background
With the improvement of life quality and the rapid development of shipping traffic, personnel movement, article transfer and the like are accelerated. In order to ensure the safety of lives and properties of people, articles, luggage and the like need to be strictly checked for safety, wherein the safety includes forbidden chemicals such as explosives, drugs, poisons and the like. The security inspection equipment is an effective safety detection technical product and is widely applied to places with dense pedestrian flow, such as airports, railway stations, bus stations and the like.
Trace species analysis is the most challenging task for security inspection and is one of the key means for detection of contraband chemical species. Since the forbidden chemical substances are always inevitably contaminated and flown to clothes or luggage by trace substances through air transmission, artificial contact and the like, all current detection methods are based on the following steps: the sampling is manually cleaned, and then the sample is inserted into a sample inlet of a detection instrument for detection, so that the defects of low sampling efficiency, high detection cost, reliability check and the like exist. The following detection instruments are generally employed:
1. the ion mobility spectrometry product has the defects that the sampling inspection process is relatively complicated, and the passenger flow speed at a security inspection port can be reduced; the detection results may be different due to different contact positions, which easily causes missed detection; the sample collection efficiency is low, and the sensitivity is poor;
2, an X-ray security inspection instrument can effectively distinguish organic matters, inorganic matters, mixtures and the like, but cannot distinguish drugs from cold drugs, drugs from flour, explosives, cosmetics and the like;
3. the millimeter wave holographic imaging security detector can detect forbidden articles hidden in a human body, but cannot detect forbidden trace substances possibly carried on the surface of the human body.
Therefore, detection work such as in-situ and low cost of the articles possibly forbidden in motion is finished in reasonable detection time and under the condition of personnel non-contact, and the method has very important guarantee significance for national safety, personnel safety and the like.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the security inspection device with the trace detection function.
The purpose of the invention is realized by the following technical scheme:
the safety inspection device with the trace detection function comprises an ion source and a mass spectrometer; the security inspection device with the trace detection function further comprises:
the image acquisition unit is used for acquiring an image of the object to be detected on the security check instrument and sending the image to the control unit;
the control unit is used for outputting an ionization track according to the image of the object to be detected;
a three-dimensional moving unit for moving the ion source according to the ionization trajectory;
a delivery unit for delivering ions to said mass spectrometer.
The invention also aims to provide a security detection method with a trace detection function, and the invention aims to be realized by the following technical scheme:
the security inspection method with the trace detection function comprises the following steps:
(A1) The image acquisition unit acquires an image of the object to be detected on the security inspection instrument and sends the image to the control unit;
(A2) The control unit outputs an ionization track according to the image;
(A3) The three-dimensional moving unit adjusts the position of the ion source according to the ionization track;
(A4) The ion source ionizes gaseous substances released by the object to be detected, and ions are conveyed to the mass spectrometer through the conveying unit;
(A5) And analyzing the ions by the mass spectrometer to obtain the detection result of the object to be detected.
Compared with the prior art, the invention has the beneficial effects that:
1. automatic security inspection;
the three-dimensional mobile unit is adopted to automatically realize image acquisition, ionization according to an ionization track, ion collection and detection, ensure direct, in-situ and rapid detection, and overcome the processes of manual wiping, sampling, sample sending and the like;
2. the detection cost is low;
only gas used by an in-situ ionization source needs to be provided, so that the operating cost of personnel and the cost of a large amount of wiping paper and the like are saved, and the cost of the prior device for separate detection is simplified;
3. the detection result is accurate;
by adopting an in-situ trace mass spectrometry detection technology and attaching technologies such as spatial position control, environmental purification control and the like, multi-region or multi-point locus efficient detection is realized, a plurality of detection instrument combination mechanisms can be started, and the detection reliability is guaranteed;
the invention avoids direct contact of people, ensures extremely high personnel inspection rate, and realizes accurate safety detection of whether the personnel carry, participate and contact prohibited chemicals in activities only according to trace detection on the surface of the object to be detected.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are only for illustrating the technical solution of the present invention and are not intended to limit the scope of the present invention. In the figure:
fig. 1 is a schematic structural diagram of a security inspection apparatus having a trace amount detection function according to an embodiment of the present invention.
Detailed Description
FIG. 1 and the following description depict alternative embodiments of the invention to teach those skilled in the art how to make and use the invention. Some conventional aspects have been simplified or omitted for the purpose of explaining the technical solution of the present invention. Those skilled in the art will appreciate variations or substitutions from these embodiments that will be within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. Thus, the present invention is not limited to the following alternative embodiments, but is only limited by the claims and their equivalents.
Example 1:
fig. 1 is a schematic diagram showing a configuration of a security device with a trace amount detection function according to embodiment 1 of the present invention, and as shown in fig. 1, the security device with a trace amount detection function includes:
an ion source 21 and a mass spectrometer 3;
an image acquisition unit 1, such as a camera, the image acquisition unit 1 being used for acquiring an image of the object to be inspected 6 on the security check instrument and sending the image to the control unit 3;
a control unit 3, wherein the control unit 3 is used for outputting an ionization track, such as one-dimensional rectangular movement, two-dimensional movement or three-dimensional hemispherical movement, according to the image of the object to be detected 6;
a three-dimensional moving unit 22, wherein the three-dimensional moving unit 22 is used for moving the ion source 21 according to the ionization trajectory;
a transport unit 24, wherein the transport unit 24 is used for transporting the ionized ions to the mass spectrometer 3.
In order to improve the detection accuracy, further, the security inspection apparatus with trace amount detection function further includes:
and the cleaning unit is used for cleaning the environment where the object to be detected is located.
In order to clean the environment where the object to be detected is located in time to ensure the detection accuracy, further, the security inspection device with the trace detection function further comprises:
the environment sensor is used for obtaining parameters of the environment where the object to be detected is located and sending the parameters to the control unit, and the parameters comprise the content of particles or the content of gas; the particulate matter and gas affect the measurement accuracy of the mass spectrometer, such as the gas is carbon monoxide, carbon dioxide or VOC;
the control unit judges whether the parameter exceeds a threshold value, and controls the cleaning unit to start if the parameter exceeds the threshold value.
In order to correct the deviation in the three-dimensional movement in time, further, the security inspection device with the trace detection function further includes:
the distance sensor is arranged on the three-dimensional moving unit and used for detecting the distance between the distance sensor and the object to be detected and sending the distance sensor to the control unit;
the control unit adjusts the ionization trajectory according to the received distance.
In order to reduce the structural complexity, the image acquisition unit and the conveying unit are further arranged on the three-dimensional moving unit.
The security inspection method with the trace detection function provided by the embodiment of the invention comprises the following steps:
(A1) The image acquisition unit acquires an image of the object to be detected on the security inspection instrument and sends the image to the control unit;
(A2) The control unit outputs an ionization track according to the image;
(A3) The three-dimensional moving unit adjusts the position of the ion source according to the ionization track;
(A4) The ion source ionizes gaseous substances released by the object to be detected, and ions are conveyed to the mass spectrometer through the conveying unit;
(A5) And analyzing the ions by the mass spectrometer to obtain the detection result of the object to be detected.
In order to eliminate the influence of the environment on the detection in time, further, the security inspection method with the trace detection function further comprises the following steps:
(B1) An environment sensor obtains parameters of the environment where the object to be detected is located and sends the parameters to the control unit, wherein the parameters comprise the content of particulate matters or the content of gas;
(B2) The control unit judges whether the parameter exceeds a threshold value;
and if the threshold value is exceeded, controlling the cleaning unit to start cleaning the environment in which the object to be detected is located.
In order to correct the deviation in the three-dimensional movement in real time, further, the security inspection method with the trace detection function further comprises the following steps:
(C1) The distance sensor obtains the distance between the distance sensor and the object to be detected and sends the distance to the control unit;
(C1) The control unit adjusts the ionization trajectory according to the received distance.
Example 2:
an application example of the security inspection apparatus and method with a trace amount detection function according to embodiment 1 of the present invention.
In the present application example, as shown in fig. 1, the image obtaining unit 1 adopts a camera for taking pictures and recording videos; the three-dimensional moving unit 22 employs a three-dimensional robot arm (or manipulator); the ion source 21 employs an in situ ionization source, such as a non-solvent assisted in situ ion source like DBDI, DART, LTP, etc.; the distance sensor adopts a laser range finder; the cleaning unit comprises a high-pressure air source, a valve and a pipeline; the environment sensors are respectively arranged at the inlet and the interior of the security check instrument and respectively comprise a particulate matter detector and a gas sensor, the particulate matter sensors obtain PM2.5 and PM10, and the gas sensor obtains the content of carbon monoxide, carbon dioxide and VOC; the conveying unit comprises a conveying pipe; the ion source, the conveying pipe and the distance sensor are arranged on the three-dimensional moving unit; the image acquisition unit, the three-dimensional mobile unit, the cleaning unit and the environment sensor are arranged in the security check instrument, and the mass spectrum analyzer is arranged outside the security check instrument.
The security inspection method with the trace detection function provided by the embodiment of the invention comprises the following steps:
(A1) The image acquisition unit acquires an image of the object to be detected on the conveyor belt of the security inspection instrument and sends the image to the control unit;
(A2) The control unit outputs an ionization track according to the image;
(A3) The three-dimensional moving unit adjusts the position of the ion source according to the ionization track;
(A4) The ion source ionizes gaseous substances released by the object to be detected, and ions are conveyed to the mass spectrometer through the conveying unit;
(A5) The mass spectrometer analyzes ions to obtain the detection result of the object to be detected, such as the category and content information of drugs and explosives;
in the above process, the environment detection work and the deviation correction work are simultaneously performed, and the environment detection work is as follows:
(B1) The environment sensor obtains parameters of the environment where the object to be detected is located, namely parameters at an inlet and inside of the security check instrument, and sends the parameters to the control unit, wherein the parameters comprise particulate matter content and gas content;
(B2) The control unit judges whether the parameter exceeds a threshold value;
if the parameters at the inlet and the inside exceed the threshold value, controlling a cleaning unit to start cleaning the environment where the object to be detected is located;
the deviation rectifying work is as follows:
(C1) The distance sensor obtains the distance between the distance sensor and the object to be detected and sends the distance to the control unit;
(C1) The control unit adjusts the ionization trajectory according to the received distance.
Example 3:
according to an application example of the security inspection apparatus and method with a trace amount detection function in embodiment 1 of the present invention, the difference from embodiment 2 is that:
the moving piece adopts a disc which rotates under the driving of the disc, namely the second guide rail is in a ring shape; the capillary needles on the capillary needle carrying device are distributed along a plurality of radial directions of the disc, and the single cells on the single cell carrying device are distributed along a plurality of radial directions of the disc.
Claims (10)
1. The safety inspection device with the trace detection function comprises an ion source and a mass spectrometer; it is characterized in that the security inspection device with the trace detection function further comprises:
the image acquisition unit is used for acquiring an image of the object to be detected on the security check instrument and sending the image to the control unit;
the control unit is used for outputting an ionization track according to the image of the object to be detected;
a three-dimensional moving unit for moving the ion source according to the ionization trajectory;
a delivery unit for delivering ions to said mass spectrometer.
2. The security inspection apparatus with a trace amount detection function according to claim 1, further comprising:
and the cleaning unit is used for cleaning the environment where the object to be detected is located.
3. The security device with trace amount detection function according to claim 2, wherein the security device with trace amount detection function further comprises:
the environment sensor is used for obtaining parameters of the environment where the object to be detected is located and sending the parameters to the control unit, and the parameters comprise the content of particles or the content of gas;
the control unit judges whether the parameter exceeds a threshold value, and controls the cleaning unit to start if the parameter exceeds the threshold value.
4. The safety inspection device with a trace amount detection function according to claim 3, wherein the particulate matter and the gas affect a measurement accuracy of the mass spectrometer.
5. The security device with trace detection function according to claim 4, wherein the gas is carbon monoxide, carbon dioxide or VOC.
6. The security inspection apparatus with a trace amount detection function according to claim 1, further comprising:
the distance sensor is arranged on the three-dimensional moving unit and used for detecting the distance between the distance sensor and the object to be detected and sending the distance sensor to the control unit;
the control unit adjusts the ionization trajectory according to the received distance.
7. The security inspection apparatus with a trace amount detecting function according to claim 1, wherein the image acquiring unit and the transferring unit are provided on the three-dimensional moving unit.
8. The security inspection method with the trace detection function comprises the following steps:
(A1) The image acquisition unit acquires an image of the object to be detected on the security inspection instrument and sends the image to the control unit;
(A2) The control unit outputs an ionization track according to the image;
(A3) The three-dimensional moving unit adjusts the position of the ion source according to the ionization track;
(A4) The ion source ionizes gaseous substances released by the object to be detected, and ions are conveyed to the mass spectrometer through the conveying unit;
(A5) And analyzing the ions by the mass spectrometer to obtain the detection result of the object to be detected.
9. The security inspection method with a trace amount detection function according to claim 8, further comprising the steps of:
(B1) An environment sensor obtains parameters of the environment where the object to be detected is located and sends the parameters to the control unit, wherein the parameters comprise the content of particulate matters or the content of gas;
(B2) The control unit judges whether the parameter exceeds a threshold value;
and if the threshold value is exceeded, controlling the cleaning unit to start cleaning the environment in which the object to be detected is located.
10. The security inspection method with a trace amount detection function according to claim 8, further comprising the steps of:
(C1) The distance sensor obtains the distance between the distance sensor and the object to be detected and sends the distance to the control unit;
(C1) The control unit adjusts the ionization trajectory according to the received distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210370627.0A CN115389602A (en) | 2022-04-10 | 2022-04-10 | Security inspection device and method with trace detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210370627.0A CN115389602A (en) | 2022-04-10 | 2022-04-10 | Security inspection device and method with trace detection function |
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