JP2020183913A - Hazardous material detection device, hazardous material detection system and hazardous material detection method - Google Patents

Abstract

To efficiently analyze a material attached to an inspection object.SOLUTION: A hazardous object detection device includes a sensor 130 detecting at least the height of an inspection object, a nozzle 111 jetting compressed gas toward the inspection object, a recovery port 121 arranged to substantially face the nozzle 111 and sucking particles separated from the inspection object by the compressed gas, a heater gasifying the particles collected from the recovery port 121, an analyzer 123 analyzing a material gasified by the heater, a driving device driving the nozzle 111 and the recovery port 121 vertically, and a control unit causing driving the nozzle 111 and the recovery port 121 to be driven vertically by causing the driving device to be driven such that the compressed gas from the nozzle 111 impinges a desired position of the inspection object on the basis of information from the sensor 130.SELECTED DRAWING: Figure 1

Description

The present invention relates to a technique of a dangerous substance detection device, a dangerous substance detection system, and a dangerous substance detection method for detecting a substance adhering to an inspection object.

The threat of terrorism is increasing worldwide. Explosives, in particular, are increasingly being used in recent terrorism as powerful explosives manufacturing methods using daily necessities have spread via the Internet. One of the effective means to prevent explosive terrorism is to find explosives hidden by explosives detectors. There are two known methods for detecting explosives: bulk detection, which finds a mass of explosives, and trace detection, which finds traces of trace amounts of explosives. Since the information obtained by bulk detection and trace detection is different and can be operated in a complementary manner, it is known that security can be improved by using both detection methods together.

For example, Patent Document 1 states that "a dangerous substance typified by a nitro compound is efficiently ionized using a negative corona discharge, and the generated negative ions are detected with high sensitivity using a mass spectrometer". A sampling device and a dangerous goods detection device are disclosed.

Further, Patent Document 2 describes that "a collection unit (5) in which a compressed gas is blown onto an inspection object (25) to which a sample substance is attached and the separated sample substance is collected by a collection filter (52). , An inspection unit (2) for analyzing the sample substance collected by this collection filter (52), and a baggage delivery unit (3) for delivering baggage to the inspection unit (2). It is characterized by being composed of a transport unit (4) that transports the collection filter (52) from the collection unit (5) to the inspection unit (2). ”A deposit inspection device and a deposit inspection method are disclosed. There is.

Japanese Unexamined Patent Publication No. 2006-58318 International Publication No. 2006/097990

Explosives detection devices are effective as a countermeasure against terrorism, but they are used only in limited places such as airports. One of the reasons why explosives detection devices are not widespread is that they are difficult to operate in places where a large number of people come and go because the throughput is low and the inspection takes time. The techniques described in Patent Documents 1 and 2 need further improvement in this respect.

The present invention has been made in view of such a background, and an object of the present invention is to efficiently analyze a substance adhering to an inspection object.

In order to solve the above-mentioned problems, the present invention has abbreviated as a height direction detection unit that detects at least the height of the inspection target, a nozzle portion that injects compressed gas toward the inspection target, and the nozzle portion. A recovery unit that is installed so as to face each other and sucks fine particles separated from the inspection object by the compressed gas, a vaporization unit that vaporizes the fine particles collected from the collection unit, and a vaporization unit that vaporizes the fine particles. From the nozzle unit to a desired position of the inspection object based on the information of the analysis unit that analyzes the substance, the first drive unit that drives the nozzle unit and the recovery unit in the vertical direction, and the height direction detection unit. It is characterized by having a control unit for driving the nozzle unit and the recovery unit in the vertical direction by driving the first driving unit so as to hit the compressed gas.
Other solutions will be described as appropriate in the embodiments.

According to the present invention, it is possible to efficiently analyze a substance adhering to an inspection object.

It is a schematic diagram which shows the structure of the dangerous goods detection apparatus which concerns on 1st Embodiment. It is the figure which looked at the structure of the dangerous goods detection system which concerns on 1st Embodiment from the top. It is a figure which shows the specific structure of the dangerous goods detection device. It is a schematic cross-sectional view of the 1st expansion and contraction part. It is sectional drawing which shows the specific example of the 1st telescopic part. It is sectional drawing which shows the assembly procedure of the 1st telescopic part (the 1). It is sectional drawing which shows the assembly procedure of the 1st telescopic part (the 2). It is sectional drawing which shows the assembly procedure of the 1st telescopic part (the 3). It is sectional drawing which shows the assembly procedure of the 1st telescopic part (the 4). It is a schematic cross-sectional view which shows another example of the 1st expansion and contraction part. It is a schematic cross-sectional view of the 2nd expansion and contraction part. It is a schematic cross-sectional view which shows another example of the 2nd expansion and contraction part. It is a flowchart which shows the processing procedure of the dangerous goods detection apparatus which concerns on 1st Embodiment. It is a figure which shows the example of the signal of the explosive detected from the handle of the baggage by the dangerous goods detection device which concerns on 1st Embodiment. It is a figure which shows the structure of the dangerous goods detection apparatus which concerns on 2nd Embodiment. It is a flowchart which shows the processing procedure of the dangerous goods detection apparatus which concerns on 2nd Embodiment. It is a figure which shows the structure of the dangerous goods detection apparatus which concerns on 2nd Embodiment. It is a flowchart which shows the processing procedure of the dangerous goods detection apparatus which concerns on 3rd Embodiment. It is a hardware block diagram of the control device used in this embodiment.

Next, an embodiment (referred to as “embodiment”) for carrying out the present invention will be described in detail with reference to the drawings as appropriate. In each drawing, the same reference numerals are given to the same configurations, and the description thereof will be omitted as appropriate.

[First Embodiment]
FIG. 1 is a schematic view showing the configuration of the dangerous goods detection device E1 according to the first embodiment.
The sampling unit 100 is composed of a pair of a peeling unit 110 and a collecting unit 120, and are arranged so as to be substantially opposed to each other. The peeling portion 110 is provided with a nozzle 111 for injecting compressed air. The nozzle 111 is connected to the compressor 113 via a compressed air supply tube 112. The collection unit 120 is provided with a collection port 121. The collection port 121 is connected to the analyzer 123 via the introduction unit 122.
Further, the dangerous goods detection device E1 has a control device 700 that controls the dangerous goods detection device E1.

When the baggage B, which is the object to be inspected, is set in the dangerous goods detection device E1, the height of the baggage B is measured by the sensor 130. The large luggage B is generally provided with a caster W on the bottom surface and a handle H on the upper surface. Since explosives are handled by hand, traces are likely to remain on the parts that are touched by hand. That is, a trace is likely to remain on the handle H as compared with the other parts of the luggage B. Therefore, in the present embodiment, the portion of the handle H is inspected.

Specifically, the control device 700 drives the sampling unit 100 up and down according to the height of the luggage B, so that the sampling unit 100 is set to an appropriate height. Then, the control device 700 injects compressed air from the nozzle 111 toward the upper surface of the luggage B. By the way, it is assumed that the handle H is provided on the upper surface of the luggage B. The fine particles (traces of explosives) peeled off by the compressed air are taken in from the collection ports 121 arranged substantially opposite to each other. The captured fine particles are introduced into the analyzer 123 via the introduction unit 122 and analyzed. If a signal derived from the explosive is obtained as a result of the analysis, an alarm is issued by a notification device (not shown).

As the sensor 130 for detecting the height of the luggage B, as shown in FIG. 1, a plurality of light emitting units 131a to 131e and light receiving units 132a to 132e are provided facing each other in the height direction. Then, the luggage B passes between the light emitting units 131a to 131e and the light receiving units 132a to 132e. The height of the luggage B is detected by the intensity of the light received by the light receiving units 132a to 132e. However, a camera or the like may be provided as the sensor 130. Then, this camera may take a picture of the baggage B, and the height of the baggage B may be detected by analyzing the image by the control device 700. The light emitting units 131a to 131e will be described as the light emitting unit 131, and the light receiving units 132a to 132e will be referred to as the light receiving unit 132 as appropriate.

The detection result by the sensor 130 is input to the control device 700. The control device 700 calculates the height of the luggage B based on the input detection result. Then, the control device 700 drives the drive device 133 (see FIG. 3) described later in the direction of the thick solid line arrow (z direction) to adjust the height of the sampling unit 100. After that, the control device 700 controls, for example, a valve (not shown) provided inside the nozzle 111 to inject compressed air from the nozzle 111.

FIG. 2 is a top view of the configuration of the dangerous goods detection system E according to the first embodiment. The internal configuration diagram of the dangerous goods detection device E1 in FIG. 2 is shown.
In the dangerous goods detection system E, the dangerous goods detection device E1 shown in FIG. 1 and the bulk inspection device E2 are arranged in series. The bulk inspection device E2 is an X-ray inspection device. The luggage B is inspected in the order of the dangerous goods detection device E1 and the bulk inspection device E2 while being placed on the same (common) belt conveyor 200.

In the dangerous goods detection system E, a sensor 130 (for example, a light emitting unit 131 and a light receiving unit 132 shown in FIG. 1) for detecting the height of the luggage B is provided at the entrance portion where the luggage B enters. After being placed on the belt conveyor 200, the luggage B is carried by the belt conveyor 200 in the direction of the white arrow. The control device 700 adjusts the height of the sampling unit 100 by the time the luggage B reaches the sampling unit 100 of the dangerous goods detection device E1. Then, the control device 700 injects compressed air from the nozzle 111 at the timing when the center of the load B passes through the sampling unit 100. After that, the baggage B is sent by the belt conveyor 200 to the bulk inspection device E2 using X-rays, millimeter waves, and the like. By doing so, the baggage B can be subjected to a trace inspection by the dangerous goods detection device E1 and a bulk inspection by the bulk inspection device E2, and the security can be improved. The order of the trace inspection by the dangerous goods detection device E1 and the bulk inspection by the bulk inspection device E2 may be reversed. Further, the trace inspection by the dangerous goods detection device E1 may be performed independently. That is, the bulk inspection device E2 may be omitted.

FIG. 3 is a diagram showing a specific configuration of the dangerous goods detection device E1.
The nozzle 111 is fixed to the dome 137, which is the ceiling portion, by the nozzle holding portion 136. The nozzle holding portion 136 is made of a rigid member. That is, the nozzle 111 is fixed to the dome 137 via the nozzle holding portion 136. The dome 137 has an expansive roof-like structure and is rounded (has a substantially arc shape) so as not to disturb the air flow. Further, as shown in FIG. 3, the nozzle 111 and the collection port 121 are arranged so as to be substantially opposed to each other. With such a configuration, the fine particles separated from the upper surface of the load B by the injection of the compressed air from the nozzle 111 can be efficiently taken in from the collection port 121.

A partition plate 124 is provided between the dome 137 and the luggage B. The partition plate 124 forms a part of the collection port 121. With such a configuration, the fine particles that have entered between the dome 137 and the partition plate 124 are efficiently taken in from the collection port 121. The collection port 121 is fixed to the dome 137, and the partition plate 124 is fixed to the dome 137 via the collection port 121.

The dome 137 is attached to the support column 134 via a drive device 133 such as a motor. As described above, when the drive device 133 is driven by the control device 700, the nozzle 111, the nozzle holding portion 136, the dome 137, the partition plate 124, and the collection port 121 are integrally moved in the vertical direction (z direction). To do. By doing so, the height of the sampling unit 100 can be adjusted to the height of the luggage B.

The fine particles taken in from the collection port 121 are introduced into the concentrator C via the concentrator introduction pipe 125. In FIG. 3, as an example of the concentrator C, a cyclone type concentrator composed of a cylindrical portion 142, a conical portion 143, and an exhaust fan 141 is shown. The fine particles introduced into the concentrator C receive centrifugal force in the cylindrical portion 142 due to the rotational motion of the air flow generated in the peripheral portion by the cyclone. At this time, the large particles come into contact with the wall and lose momentum, fall in the direction of gravity, and are collected by the filter 145 provided in the heater 144. On the other hand, the small and light particles are exhausted to the outside of the cylindrical portion 142 by the updraft generated in the central portion (white arrow).

The heater 144 is heated to about 200 degrees, and the fine particles collected by the filter 145 are vaporized by this heat. The gas generated by the vaporization and caused by the fine particles is sent to the analyzer 123 via the analyzer introduction pipe 146 and analyzed. The analyzer introduction pipe 146 installed between the heater 144 and the analyzer 123 is heated to about 180 degrees by the heater 147 so that the vaporized gas does not cool and adsorb to the analyzer introduction pipe 146. As the analyzer 123, an ion mobility or a mass spectrometer can be used. When a signal derived from the explosive is obtained as a result of the analysis by the analyzer 123, an alarm is issued from a notification device (not shown).

The installation angle A of the nozzle 111 is preferably about 20 to 50 degrees with respect to the upper surface (horizontal plane) of the luggage B. Further, the height T of the upper part of the partition plate 124 may be set to be the same height as the upper surface of the luggage B or slightly lower. In the example of FIG. 3, the height T of the upper part of the partition plate 124 is set to be slightly lower than the upper surface of the luggage B. The nozzle 111, the partition plate 124, the nozzle holding portion 136, and the collection port 121 are preliminarily adjusted so as to maintain this relationship when the sampling portion 100 is moved up and down according to the height of the luggage B.

The introduction unit 122 in FIG. 1 corresponds to the concentrator introduction pipe 125, the concentrator C, and the analyzer introduction pipe 146.

In order to drive the sampling unit 100 up and down, a mechanism having a margin even if the sampling unit 100 is driven up and down is required in the concentrator introduction pipe 125 and the analyzer introduction pipe 146. For such a purpose, the first expansion / contraction portion 301 is provided in the concentrator introduction pipe 125 connecting the collection port 121 and the inlet of the concentrator C. Further, a second expansion / contraction portion 302 is provided in the analyzer introduction pipe 146. The first telescopic portion 301 and the second telescopic portion 302 will be described later. Either one of the first expansion / contraction portion 301 and the second expansion / contraction portion 302 may be omitted.

(First telescopic part 301)
FIG. 4 is a schematic cross-sectional view of the first telescopic portion 301 shown in FIG.
In FIG. 4, the concentrator introduction pipe 125 is divided into a collection port side pipe 125a connected to the collection port 121 and a concentrator side pipe 125b connected to the inlet of the concentrator C. Then, the collection port side pipe 125a and the concentrator side pipe 125b are connected by a fitting structure. When the sampling unit 100 is driven in the vertical direction, the collection port side pipe 125a slides in the vertical direction (thick solid line arrow direction, z direction) with respect to the concentrator side pipe 125b. With such a configuration, it is possible to realize a mechanism having a margin even if the sampling unit 100 is driven up and down. If the gap between the collection port side pipe 125a and the concentrator side pipe 125b is sufficiently small, the recovery port side pipe 125a and the concentrator side pipe 125b may be simply fitted. However, when a leak from the gap between the collection port side pipe 125a and the concentrator side pipe 125b affects the analysis performance, an O-ring 401 as a sealing material as shown in FIG. 4 may be provided in the gap. By providing such an O-ring 401, it is possible to prevent leakage between the collection port side pipe 125a and the concentrator side pipe 125b.

FIG. 5 is a cross-sectional view showing a specific example of the first telescopic portion 301 shown in FIG. 6A to 6D are cross-sectional views showing an assembly procedure of the first telescopic portion 301 shown in FIG.
First, the assembly of the first telescopic portion 301 will be described with reference to FIGS. 6A to 6D.
The user passes the cap 403, the pressing portion 402, and the O-ring 401 shown in FIG. 5 through the collection port side pipe 125a in this order in advance.

Next, the user inserts the collection port side pipe 125a into the concentrator side pipe 125b (FIG. 6A). As shown in FIG. 6A, the concentrator side pipe 125b has a pipe main body portion K and a connection portion J. Further, the connecting portion J is connected to the truncated cone portion J1 having a spread toward the open end of the concentrator side pipe 125b and the wide end side of the truncated cone portion J1 and has an inner diameter larger than the inner diameter of the pipe main body portion K. It has a cylindrical cylindrical portion J2. The cylindrical portion J2 has a screw formed on the outside. The narrow end side of the truncated cone portion J1 is connected to the pipe main body portion K of the concentrator side pipe 125b.

Further, the insides of the truncated cone portion J1 and the cylindrical portion J2 are hollow, and a gap G is formed when the collection port side pipe 125a and the concentrator side pipe 125b are connected. Further, the outer diameter of the collection port side pipe 125a is substantially the same as the inner diameter of the pipe main body K of the concentrator side pipe 125b.

Next, the user inserts the O-ring 401 into the gap G in the concentrator side pipe 125b (FIG. 6B). The O-ring 401 is made of a resin that can be inserted into the gap G and is deformable with respect to pressure.

After that, the user inserts the cylindrical pressing portion 402 into the gap G (see FIG. 6) (FIG. 6C). The inner diameter of the pressing portion 402 is substantially the same as the outer diameter of the recovery port side pipe 125a, and the outer diameter is substantially the same as the inner diameter of the cylindrical portion J2 in the connecting portion J. The pressing portion 402 does not have to have the configuration shown above as long as it can be inserted into the gap G.

Then, as shown in FIG. 6D, the user installs the cap 403 having a screw inside at the connection portion J of the concentrator side pipe 125b. As shown in FIG. 6D, the cap 403 has a bottomed cylindrical shape. A screw is configured inside the cylindrical portion P1 of the cap 403 so that it can be screwed to a screw configured on the outside of the cylindrical portion J2. Further, the bottom P2 of the cap 403 is configured with a hole P3 through which the recovery port side pipe 125a can be inserted.

Then, as shown in FIG. 6D, the user uses a screw formed inside the cylindrical portion P1 of the cap 403 and a screw formed outside the cylindrical portion J2 of the concentrator side pipe 125b. The cap 403 is screwed into the connection portion J of the concentrator side pipe 125b.

As shown in FIG. 6D, the cap 403 in which the recovery port side pipe 125a is inserted into the hole P3 is screwed into the cylindrical portion J2 by the user, so that the pressing portion 402 is pushed downward in the drawing by the bottom portion P2 of the cap 403. It is pushed in. Along with this, as shown in FIG. 6D, the O-ring 401 is pressed by the pressing portion 402 and deformed. As a result, the configuration of the first telescopic portion 301 is formed as shown in FIG.

According to the first expansion / contraction portion 301 shown in FIG. 5, the O-ring 401 is pressed and deformed by the pressing portion 402, so that the O-ring 401 adheres between the concentrator side pipe 125b and the recovery port side pipe 125a. To improve. By doing so, it is possible to easily prevent the occurrence of a leak in the first telescopic portion 301.

The connection portion J may be provided in the collection port side pipe 125a. Further, the cap 403 and the connecting portion J are configured to be screwable, but the present invention is not limited to this. After the cap 403 is pressed into the connecting portion J, the cap 403 and the connecting portion J may be fixed with an adhesive, tape, or the like. The O-ring 401 is arranged between the pressing portion 402 and the truncated cone portion J1, but the O-ring 401 may be arranged between the pressing portion 402 and the cap 403. In this case, when the cap 403 is screwed into the connecting portion J, the O-ring 401 between the cap 403 and the pressing portion 402 is deformed to improve the adhesion between the concentrator side pipe 125b and the recovery port side pipe 125a. You may let it.

FIG. 7 is a schematic cross-sectional view showing another example of the first telescopic portion 301.
In the example shown in FIG. 7, a part or all of the concentrator introduction pipe 125 has a deformable flexible structure 501. The flexible structure 501 is realized by using a metal tube having a bellows structure, a soft Teflon (registered trademark) tube, or the like.
Even with the configuration as shown in FIG. 7, it is possible to realize a mechanism having a margin for the vertical drive of the sampling unit 100.

(Second telescopic part 302)
FIG. 8 is a schematic cross-sectional view of the second telescopic portion 302 shown in FIG.
In the example shown in FIG. 8, the analyzer introduction pipe 146 is divided into a heater side pipe 146a and an analyzer side pipe 146b. Then, the heater side pipe 146a is connected to the analyzer side pipe 146b by a fitting structure. With such a configuration, even if the sampling unit 100 is driven up and down, the heater side pipe 146a slides with respect to the analyzer side pipe 146b. As a result, it is possible to realize a mechanism having a margin for the vertical drive of the sampling unit 100.

If the gap between the heater-side pipe 146a and the analyzer-side pipe 146b is sufficiently small, the heater-side pipe 146a and the analyzer-side pipe 146b may simply be fitted together. However, when a leak from the gap between the heater side pipe 146a and the analyzer side pipe 146b affects the analysis performance, an O-ring 401 as a sealing material as shown in FIG. 8 may be provided in the gap. By providing such an O-ring 401, it is possible to prevent leakage from between the heater side pipe 146a and the analyzer side pipe 146b. As the O-ring 401, a member that does not melt even with the heat of the heater 147 is used. Further, in the second expansion / contraction portion 302 shown in FIG. 8, the configuration as shown in FIG. 5 may be used.

FIG. 9 is a schematic cross-sectional view showing another example of the second telescopic portion 302.
In the example shown in FIG. 9, a part or all of the analyzer introduction pipe 146 has a deformable flexible structure 502. The flexible structure 502 is realized by using a metal tube having a bellows structure, a soft Teflon tube, or the like.
Even with the configuration as shown in FIG. 9, it is possible to realize a mechanism having a margin for the vertical drive of the sampling unit 100.

(flowchart)
FIG. 10 is a flowchart showing a processing procedure of the dangerous goods detection device E1 according to the first embodiment.
First, the control device 700 calculates the height of the luggage B based on the signal transmitted from the sensor 130 (S101).
Then, the control device 700 drives the drive device 133 according to the detected height of the luggage B. As a result, the height of the sampling unit 100 is adjusted (S102).
After that, compressed air is injected from the nozzle 111, and the fine particles separated from the handle H of the luggage B are taken in from the collection port 121 (S103).
After that, the analyzer 123 analyzes the fine particles (S111), and the bulk inspection device E2 performs the bulk inspection (S112).

(Signal example)
FIG. 11 is a diagram showing an example of an explosive signal detected from the handle H of the luggage B by the dangerous goods detection device E1 according to the first embodiment.
Here, a sample in which a molecule of trinitrotoluene was adsorbed on silica gel was attached to the handle H of the luggage B, and the measurement was performed using the dangerous goods detection device E1 according to the first embodiment. The angle of the nozzle 111 was 40 degrees with respect to the horizontal, the pressure of the compressed air to be injected was 0.2 MPa, the injection time of the compressed air was 0.2 seconds, and the number of injections of the compressed air was one. In FIG. 11, the time t1 is the injection time of the compressed air. Further, the time "0" in FIG. 11 is the detection time of the fine particles.
As a result, as shown by reference numeral 601 in FIG. 11, a signal derived from trinitrotoluene was clearly obtained.

As described above, according to the first embodiment, when the handle H of the luggage B passes in front of the nozzle 111, the fine particles adhering to the handle H can be detected only by applying compressed air for a very short time. It is possible. Here, the time required from the injection of compressed air to the detection of trinitrotoluene was about 2 seconds as shown in FIG. That is, the result of the trace inspection device is found while the baggage B is inspected by the bulk inspection device E2 such as the X-ray device. Therefore, by using the dangerous goods detection system E according to the present embodiment, the inspection of the baggage B can be performed easily and speedily.

According to the first embodiment, the height of the sampling unit 100 can be adjusted to a desired height, that is, the height of the luggage B. Therefore, according to the first embodiment, it is possible to provide the trace type dangerous goods detection device E1 that can more easily inspect the baggage B by inspecting the portion where the trace of the explosive is likely to remain. That is, according to the present embodiment, in the inspection of the baggage B, the place where the trace of the explosive is likely to remain can be inspected, which is simpler than the case of inspecting the entire baggage B, and the high throughput inspection can be performed. realizable. As a result, the convenience in the security check can be improved.

[Second Embodiment]
FIG. 12 is a diagram showing the configuration of the dangerous goods detection device E1a according to the second embodiment.
In FIG. 12, the same components as those in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted.
Depending on the luggage B, the handle H may be attached closer to the side surface side of the luggage B as shown in FIG. 12 because the caster W is attached to only one side. In order to deal with such a case, the dangerous goods detection device E1a is provided with a plurality of nozzles 111a to 111c in the nozzle holding portion 136a. The nozzles 111a to 111c are sometimes referred to as nozzles 111. Then, the position of the handle H, which is the inspection point, in the lateral direction (x direction) is detected by the control device 700 by the camera 151 or the like provided at the entrance portion of the dangerous substance detection system E. Then, the control device 700 selects the nozzle 111 at an appropriate position such that the compressed air hits the handle H from the plurality of nozzles 111a to 111c. After that, the control device 700 injects compressed air by opening, for example, a valve (not shown) provided inside the selected nozzle 111.

The fine particles separated from the upper surface of the luggage B and the handle H by the injection of compressed air are then analyzed in the same manner as in the first embodiment.

(flowchart)
FIG. 13 is a flowchart showing a processing procedure of the dangerous goods detection device E1a according to the second embodiment.
In FIG. 13, the same processing as in FIG. 10 is designated by the same reference numerals and description thereof will be omitted.
After step S101, the camera 151 images the luggage B, and the control device 700 detects the position of the handle H from the image of the captured luggage B (S201). That is, the control device 700 detects the position of the handle H in the x direction of FIG.
Then, after step S102, the control device 700 selects the optimum nozzle 111 for injecting compressed air into the handle H from among the plurality of installed nozzles 111 based on the detected handle H position (S202). ).

According to the second embodiment, it is possible to provide the dangerous goods detection device E1a that can respond even if the location of the handle H installed on the upper surface of the luggage B changes for each luggage B.

[Third Embodiment]
FIG. 14 is a diagram showing the configuration of the dangerous goods detection device E1b according to the third embodiment.
In FIG. 14, the same components as those in FIG. 3 are designated by the same reference numerals, and the description thereof will be omitted.
In FIG. 14, the nozzle 111 is installed alone in the nozzle holding portion 136b. The nozzle driving device 135 is installed between the nozzle holding portion 136b and the ceiling portion (dome 137) so that the nozzle holding portion 136b can move with respect to the ceiling portion (dome 137). Then, by controlling the nozzle driving device 135 in the x direction, the control device 700 controls the nozzle 111 at an appropriate position so that the compressed air hits the handle H of the luggage B, which is the inspection point, grasped by the camera 151 or the like. To move. Then, the control device 700 injects compressed air from the selected nozzle 111. The fine particles separated from the upper surface of the luggage B and the handle H by the injection of compressed air are then analyzed in the same manner as in the first embodiment.

FIG. 15 is a flowchart showing a processing procedure of the dangerous goods detection device E1b according to the third embodiment.
In FIG. 15, the same processing as in FIGS. 10 and 13 is designated by the same reference numerals and description thereof will be omitted.
After step S102, the control device 700 controls the nozzle drive device 135 based on the handle H position detected in step S201 to move the nozzle 111 to an optimum position for injecting compressed air into the handle H. (S301).

According to the third embodiment, it is possible to provide the dangerous goods detection device E1b that can respond even if the location of the handle H installed on the upper surface of the luggage B changes for each luggage B.

[Hardware configuration diagram]
FIG. 16 is a hardware configuration diagram of the control device 700 used in this embodiment.
The control device 700 is a PC (Personal Computer) or a PLC (Programmable Logic Controller). The control device 700 includes a CPU (Central Processing Unit) 701, a memory 702, a storage device 703 such as an HD (Hard Disk), a communication device 704, and the like. The program stored in the storage device 703 is loaded into the memory 702 and executed by the CPU 701, so that each process described later can be performed. Further, the communication device 704 transmits a control instruction to each control target of the dangerous goods detection devices E1, E1a, and E1b, and receives a signal or an image sent from the sensor 130 or the camera 151.

The dangerous goods detection devices E1, E1a, E1b or the dangerous goods detection system E described in the present embodiment may be installed in a place where many people gather, such as an airport, a station, or a museum.

Further, in FIGS. 10, 13, and 15, the processing is performed in the order of trace inspection by the dangerous goods detection device E1, E1a, E1b → bulk inspection by the bulk inspection device E2. However, the order may be bulk inspection by the bulk inspection device E2 → trace inspection by the dangerous goods detection devices E1, E1a, E1b. In this case, the trace inspection by the dangerous goods detection devices E1, E1a, E1b is performed while the analysis by the bulk inspection (X-ray image analysis, etc.) is being performed.

The present invention is not limited to the above-described embodiment, and includes various modifications. For example, the above-described embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner, and is not necessarily limited to those having all the described configurations. Further, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Further, it is possible to add / delete / replace a part of the configuration of each embodiment with another configuration.

Further, each of the above-mentioned configurations, functions, control devices 700 and the like may be realized by hardware by designing a part or all of them by, for example, an integrated circuit. Further, as shown in FIG. 16, each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program in which a processor such as a CPU 701 realizes each function. In addition to storing information such as programs, tables, and files that realize each function in HD, a memory 702, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, or an SD ( It can be stored in a recording medium such as a Secure Digital) card or DVD (Digital Versatile Disc).
Further, in each embodiment, the control lines and information lines are shown as necessary for explanation, and not all the control lines and information lines are necessarily shown in the product. In practice, almost all configurations can be considered interconnected.

111,111a to 111c Nozzle (nozzle part)
121 Collection port (collection unit)
123 Analyzer (Analysis Department)
125 Concentrator introduction piping (piping)
125a Collection port side piping (first piping, second piping)
125b Concentrator side piping (first piping, second piping)
130 sensor (height direction detector)
131 Light emitting part (height direction detection part)
132 Light receiving part (height direction detection part)
133 Drive device (1st drive unit)
135 Nozzle drive device (second drive unit)
137 Dome (support)
144 Heater (vaporization part)
146 Analytical device introduction piping (piping)
146a Heater side piping (first piping, second piping)
146b Analyzer side piping (first piping, second piping)
151 camera (inspection position detector)
200 Belt conveyor (transportation unit)
401 O-ring (seal material)
402 Pressing part 403 Cap (cap part)
501 Flexible structure 700 Control device (control unit)
E Dangerous goods detection system E1, E1a, E1b Dangerous goods detection device E2 Bulk inspection device B Luggage (inspection object)
H handle (inspection point)
J Connection part J1 Circular truncated cone part J2 Cylindrical part K Piping body part S101 Luggage height calculation (height calculation step)
S102 Height adjustment of sampling unit (first drive step)
S103 Injection / capture (injection step)
S104 analysis (analysis step)
S202 Nozzle selection (nozzle part selection step)
S301 Nozzle movement (second drive step)

Claims (14)

At least a height direction detector that detects the height of the object to be inspected,
A nozzle that injects compressed gas toward the inspection object,
A recovery unit that is installed so as to substantially face the nozzle unit and sucks fine particles separated from the inspection object by the compressed gas.
A vaporizing unit that vaporizes the fine particles collected from the collecting unit,
An analysis unit that analyzes substances vaporized by the vaporization unit,
A first driving unit that drives the nozzle unit and the collecting unit in the vertical direction,
By driving the first drive unit so that the compressed gas from the nozzle unit hits a desired position of the inspection object based on the information of the height direction detection unit, the nozzle unit and the recovery unit can be moved up and down. A control unit that drives in the direction and
Dangerous goods detection device characterized by having. The collection unit and the analysis unit are connected via a pipe.
The dangerous substance detection device according to claim 1, wherein the pipe is provided with a telescopic portion that expands and contracts in the vertical direction as the nozzle portion and the recovery portion are driven in the vertical direction. The pipe is divided into a first pipe, which is a pipe on the recovery unit side, and a second pipe on the analysis unit side.
The dangerous substance detection device according to claim 2, wherein the first pipe and the second pipe are connected as the telescopic portion by a fitting structure. The dangerous substance detection device according to claim 3, wherein a sealing material is arranged in a gap between the first pipe and the second pipe. The sealing material is
An O-ring that can be deformed by pressurization
The second pipe
It has a piping main body and a connecting portion whose inner diameter is substantially the same as the outer diameter of the first pipe.
The connection part
A cylindrical portion having a larger inner diameter than the piping body portion and a cylindrical portion
It has a truncated cone shape, with a truncated cone that connects to the piping body at the narrow end and a truncated cone that connects to the cylindrical portion at the wide end.
It is configured so that a gap is formed between the connection portion and the first pipe.
In a state where the first pipe and the second pipe are connected, the O-ring and a pressing portion having a cylindrical shape that can be inserted into the gap are inserted into the gap.
A cap portion having a bottomed cylindrical shape and having an inner diameter substantially the same as the outer diameter of the cylindrical portion is installed in the connecting portion so that the bottom portion of the cap portion pushes the pressing portion into the gap. The dangerous goods detection device according to claim 4, wherein the dangerous goods detection device is configured. The dangerous substance detection device according to claim 2, wherein at least a part of the pipe has a flexible structure as the telescopic portion. In addition to being provided with a plurality of the nozzle portions
An inspection position detection unit that detects the position of the inspection point on the inspection object,
Have
The control unit
Claim 1 is characterized in that a nozzle portion close to the position of the inspection location detected by the inspection position detection unit is selected from the plurality of nozzle portions, and compressed gas is injected from the selected nozzle portion. Dangerous goods detection device described in. An inspection position detection unit that detects the position of the inspection point on the inspection object,
A second drive unit that drives the nozzle unit in the horizontal direction and
Have,
The control unit
The dangerous goods detection device according to claim 1, wherein the second drive unit is driven so that the position of the nozzle unit is close to the position of the inspection location detected by the inspection position detection unit. The dangerous substance detection device according to claim 1, wherein the nozzle portion and the collection portion are fixed by a roof-shaped support portion having a substantially arc shape. The control unit
Based on the height of the load, which is the inspection target, detected by the height direction detection unit, the compressed gas injected from the nozzle unit is positioned so as to be blown onto the upper surface of the load. The dangerous substance detection device according to claim 1, wherein the first driving unit is driven. At least a height direction detector that detects the height of the object to be inspected,
A nozzle that injects compressed gas toward the inspection object,
A recovery unit that is installed so as to substantially face the nozzle unit and sucks fine particles separated from the inspection object by the compressed gas.
A vaporizing unit that vaporizes the fine particles collected from the collecting unit,
An analysis unit that analyzes substances vaporized by the vaporization unit,
A first driving unit that drives the nozzle unit and the collecting unit in the vertical direction,
By driving the first drive unit so that the compressed gas from the nozzle unit hits a desired position of the inspection object based on the information of the height direction detection unit, the nozzle unit and the recovery unit can be moved up and down. A control unit that drives in the direction and
Dangerous goods detection device equipped with
Bulk inspection equipment for bulk inspection and
A transport unit that transports the object to be inspected,
Have,
A dangerous goods detection system, wherein the dangerous goods detection device and the bulk inspection device are arranged in series with respect to the common transport unit. At least a height direction detector that detects the height of the object to be inspected,
A nozzle that injects compressed gas toward the inspection object,
A recovery unit that is installed so as to substantially face the nozzle unit and sucks fine particles separated from the inspection object by the compressed gas.
A vaporizing unit that vaporizes the fine particles collected from the collecting unit,
An analysis unit that analyzes substances vaporized by the vaporization unit,
A first driving unit that drives the nozzle unit and the collecting unit in the vertical direction,
By driving the first drive unit so that the compressed gas from the nozzle unit hits a desired position of the inspection object based on the information of the height direction detection unit, the nozzle unit and the recovery unit can be moved up and down. A control unit that drives in the direction and
Have,
The control unit
A height calculation step for calculating the height of the inspection object based on the signal transmitted from the height direction detection unit, and
A first drive step of driving the first drive unit in the vertical direction of the nozzle unit and the collection unit by driving the first drive unit based on the calculated height of the inspection object.
An injection step of injecting the compressed gas from the nozzle portion and
The analysis unit
An analysis step of analyzing a substance recovered from the recovery unit and vaporized by the vaporization unit, and
Dangerous goods detection method characterized by performing. In addition to being provided with a plurality of the nozzle portions
An inspection position detection unit that detects the position of the inspection point on the inspection object,
Have
The control unit
A nozzle unit selection step of selecting the nozzle unit close to the position of the inspection location detected by the inspection position detection unit from the plurality of nozzle units is executed.
In the injection step
The control unit
The dangerous substance detection method according to claim 12, wherein the compressed gas is injected from the nozzle portion selected in the nozzle portion selection step. An inspection position detection unit that detects the position of the inspection point on the inspection object,
A second drive unit that drives the nozzle unit in the horizontal direction and
Have,
The control unit
Prior to the injection step, the second drive step for driving the second drive unit is executed so that the position of the nozzle unit is close to the position of the inspection portion detected by the inspection position detection unit. The dangerous goods detection method according to claim 12, which is characterized.

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