CN115087859A - Portable belt type X-ray inspection device - Google Patents
Portable belt type X-ray inspection device Download PDFInfo
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- CN115087859A CN115087859A CN201980103555.XA CN201980103555A CN115087859A CN 115087859 A CN115087859 A CN 115087859A CN 201980103555 A CN201980103555 A CN 201980103555A CN 115087859 A CN115087859 A CN 115087859A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/04—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and forming images of the material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
- G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
- G01N23/10—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being confined in a container, e.g. in a luggage X-ray scanners
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The present invention addresses the problem of providing a portable belt-type X-ray inspection apparatus which is easy to move and simple to install, can perform X-ray inspection of an object on a conveyor belt in a quasi-continuous manner, and can achieve both high-speed and high-precision X-ray inspection. The solution of the present invention is a portable belt type X-ray inspection apparatus, comprising: a conveyor belt having a leg part, placed on the leg part, for placing the subject thereon, moving the subject to the X-ray imaging part, and further moving the subject to the taking-out position; an X-ray shielding frame surrounding an X-ray imaging part in the conveyor belt; an X-ray irradiation unit which is provided inside the housing and irradiates the subject with X-rays; a digital detector that senses X-rays transmitted through a subject; a control device which processes a detection signal corresponding to the intensity of the X-ray detected by the detector so as to be displayed as a digital X-ray image; and a monitor that displays the digital X-ray image, wherein the stop of the conveyor belt is synchronized with the irradiation of the X-rays and the sensing of the detector, the X-ray imaging of the subject is performed, and the intermittent operation in which the stop and the movement of the conveyor belt are repeated is performed, whereby both high-speed and high-precision X-ray inspection can be performed using the conveyor belt.
Description
Technical Field
The present invention relates to a portable belt-type X-ray inspection apparatus which is easy to move and simple to install, performs X-ray inspection of an object to be inspected on a belt in a quasi-continuous manner, and can perform high-speed and high-precision X-ray inspection at the same time.
Background
Conventionally, a conveyor-type baggage X-ray inspection apparatus is installed in an airport or the like, but is not intended to be moved due to its large size, and has a high radiation dose.
On the other hand, as an X-ray inspection apparatus for a portable baggage, a baggage inspection X-ray apparatus of patent document 1 is disclosed. In the invention of patent document 1, since the baggage 4 is loaded with reference to the X-ray irradiation range setting area 11 of the baggage inspection table 13 and, when the X-ray is irradiated from the X-ray generating section in the lower body 7, the baggage 4 passes through the baggage 4 and reaches the X-ray image receiving section 9, and is reflected by the mirror 10, the inspector checks whether or not the suspicious object 6 is present in the baggage 4 while shifting the position of the baggage 4 so as not to insert the hand into the X-ray irradiation range setting area 11.
However, even if the baggage inspection X-ray device of patent document 1 is portable, the subject needs to be placed on the baggage inspection table 13 by hand, which is complicated, requires a long time for inspection, and is not suitable for X-ray inspection of a large number of subjects. Further, since the X-ray shielding property is insufficient, a measure for exposing the radiation is required, and the convenience of use is not good.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. Hei 10-10057;
patent document 2: japanese patent laid-open publication No. 2017-191057, "Wako science and technology corporation: portable X-ray inspection apparatus ";
patent document 3: japanese patent laid-open No. 2017-015412, "tsubo science corporation: portable wire end X-ray inspection device ";
patent document 4: japanese patent laid-open No. 2015-217137, "tsukubo science corporation: a portable 3D display X-ray photographing apparatus ";
patent document 5: japanese patent laid-open No. 2012-154627, "tsubo science corporation: x-ray nondestructive inspection apparatus ".
Disclosure of Invention
The problems to be solved by the invention are as follows:
therefore, an object of the present invention is to provide a portable belt-type X-ray inspection apparatus which is easy to move and simple to install, can perform X-ray inspection of an object on a belt in a quasi-continuous manner, and can achieve both high-speed and high-precision X-ray inspection.
The scheme for solving the problems is as follows:
in order to solve the above problems, the present invention provides the following means.
(1) A portable conveyor-type X-ray inspection apparatus, comprising:
a conveyor belt having a leg portion, placed on the leg portion, on which a subject is placed, moved to an X-ray imaging portion, and moved to a taking-out position;
an X-ray shielding frame surrounding an X-ray imaging portion of the conveyor belt;
an X-ray irradiation unit which is provided inside the housing and irradiates the subject with X-rays;
a digital detector that senses the X-rays transmitted through the subject;
a control device that processes a detection signal corresponding to the X-ray intensity sensed by the detector so as to be displayable as a digital X-ray image; and
a monitor that displays the digital X-ray image,
wherein the stop of the conveyor belt is synchronized with the irradiation of the X-ray and the sensing of the detector, the X-ray imaging of the subject is performed, and the intermittent operation in which the stop and the movement of the conveyor belt are repeated is performed, whereby both high-speed and high-precision X-ray inspection can be performed using the conveyor belt.
(2) The portable belt-type X-ray inspection apparatus according to (1),
the X-ray imaging apparatus includes a first sensor for sensing passage of the subject in front of the X-ray imaging portion, and stops driving of the conveyor belt by a control signal of the control device after a predetermined time from sensing of the first sensor, and performs the X-ray imaging.
(3) The portable belt-type X-ray inspection apparatus according to (1),
the frame body is fitted into a receiving part connected to the conveyor belt, and is made into a framework by a column and a beam having a groove, and an X-ray shielding lead plate is fitted into the groove so as to surround an X-ray imaging part and hang a plurality of lead-containing strips on an inlet and an outlet of the subject.
(4) The portable belt-type X-ray inspection apparatus according to (1) is disassembled and moved to an inspection site, and assembled at the inspection site.
(5) A method for preventing crime, which is characterized in that,
the portable belt-type X-ray inspection device in (1) is used for carrying out baggage inspection at the entrance of a vehicle or a meeting place.
(6) The crime prevention method according to (5),
the vehicle is any one of an aircraft, a ship, or a new trunk line.
(7) The method of protection according to claim 5,
the meeting place is any one of a sports meeting place, a live broadcasting meeting place, a workshop meeting place, a discussion meeting place, a political gathering and a theme park.
Effects of the invention
The present invention is configured as described above, and therefore, the present invention is easy to move and simple to install, i.e., can be assembled and disassembled at an inspection site, and can be moved to a next meeting place, so that a baggage inspection by visual inspection or the like in a vehicle or various indoor and outdoor activities can be replaced with an X-ray inspection, and a short-time (high-speed) and high-accuracy inspection can be performed, and thus, the present invention can contribute greatly to prevention of crimes and accidents.
The X-ray inspection of the object can be performed on the conveyor belt quasi-continuously (intermittently: the conveyor belt which stops moving only at the time of imaging), the X-ray inspection is easy, the inspection efficiency is high, and the X-ray inspection of a large amount of baggage and industrial products can be performed.
In addition, since X-ray imaging is performed after the conveyor belt is stopped, that is, since the conveyor belt is stopped in synchronization with the irradiation of X-rays and the sensing of the detector, the X-ray image becomes sharp. Furthermore, if a flat panel detector is used, a high-precision X-ray inspection capable of discriminating 0.1mm foreign matter can be performed.
Since the lead frame has a long strip provided with a lead plate disposed at the entrance and is surrounded by a radiation shielding lead plate, radiation leakage can be prevented, the risk of exposure is low, and X-ray imaging can be performed without requiring an X-ray operation person and a radiation management area to be set around the X-ray inspection apparatus.
As described above, the present invention can perform a short-time baggage inspection in a small-sized and portable manner, and thus can perform an X-ray baggage inspection when a baggage inspection is performed at an airport where airport facilities are insufficient, and when a passenger ship is on a ship or a new mainline is on the ship. Thereby contributing to their operational safety and crime prevention. In particular, the differentiation of safe operation can be achieved by performing the operation only for some vehicles and passengers on floors.
The X-ray inspection of the luggage can be performed at the entrance of a sports hall, a live broadcasting hall, a seminar hall, a discussion hall, a political gathering hall, and a theme park, which are not equipped with the X-ray inspection apparatus. This contributes to safe operation of the meeting place and the event.
The present invention can be used not only for baggage inspection but also for high-speed and high-accuracy inspection of foreign matter such as batteries and boards for foods, shoes, and industrial products.
Drawings
Fig. 1 is a schematic side view of a portable belt-type X-ray inspection apparatus according to the present invention, and is a schematic longitudinal sectional view of a frame body.
Fig. 2 is a schematic plan view of the portable belt-type X-ray inspection apparatus of the present invention, and is a schematic horizontal cross-sectional view of the frame.
Fig. 3 is an explanatory view of the housing, fig. 3 (a) is a schematic longitudinal sectional view of the entire housing at a position corresponding to a-a 'in fig. 3 (B), and fig. 3 (B) is a schematic horizontal sectional view of the entire housing at a position corresponding to B-B' in fig. 3 (a).
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1 to 3, a portable belt-type X-ray inspection apparatus 1 according to the present invention includes a belt 2, a frame 3, an X-ray irradiation unit 4, a detector 5, a control device 6, and a monitor 7.
The conveyor belt 2 includes a leg portion 2a, and includes, for example: a frame 2c mounted on the leg 2 a; and a belt 2d on which the subject 10a before examination is placed, which is rotated by driving of the motor 2e, and which moves the subject 10 to the X-ray imaging site and further moves the subject 10b to the takeout position. When the leg portion 2a is provided with the caster 2b, the setting position can be easily adjusted. Instead of the belt 2d, a roller driven by a motor 2e may be used.
The housing 3 is assembled from an X-ray shielding material surrounding the X-ray imaging region on the conveyor 2, and includes, for example: a receiving part 3p directly connected to the frame 2c of the conveyor 2 via a mounting part 3 q; a column 3l and a beam 3n fitted into the receiving portion 3p and having a groove 3m or a groove 3 o; and a plate (an inlet unit 3b, an outlet unit 3e, a top plate 3j, a left side plate 3h, a right side plate 3i, and a placing part 3q) surrounding the X-ray imaging part and incorporating an X-ray shielding lead plate 3k fitted into the opposing grooves 3m and 3 o. The frame 3 is not particularly limited as long as it can be easily assembled, disassembled, and moved, except for the examples described here.
A plurality of lead-containing strips 3d and 3g hang down from the inlet 3c of the subject 10a and the outlet 3f of the subject 10. The column 3l and the beam 3n form a skeleton 3 a. The placing unit 3q is provided with an X-ray irradiation unit 4 described later.
The frame 3 further includes a first sensor 3t and a second sensor 3u, which are respectively held by the front holding portion 3r and the rear holding portion 3s provided upright on the frame 2c of the conveyor 2, or the inner sides of the frame 3 of the left and right side panels 3h and 3i in the frame 3.
The first sensor 3t senses the passage of the subject 10a before the X-ray imaging part, and stops the driving of the conveyor belt 2 by the control signal 6c of the control device 6 after a predetermined time from the sensing of the first sensor 3t, and uses the time control of the timing of the X-ray imaging.
The second sensor 3u senses the passage of the subject 10b after the X-ray examination is completed, and allows the next baggage to be carried into the examination portion. For example, a baggage placement permission signal or a display on the belt 2d is lit. When the second sensor 3u does not sense the baggage, the X-ray inspection is temporarily suspended and the suspended baggage is taken out from the frame 3 because the baggage in the frame 3 is estimated to be suspended.
The X-ray irradiation unit 4 is provided inside the housing 3, and includes: an X-ray source 4b that irradiates X-rays 4a toward the subject 10 and is provided inside a side surface of the frame 3; and a drive source such as a battery 4c, an AC-DC adapter, or the like.
As the X-ray source 4b, a carbon nanostructure three-pole cold cathode X-ray tube described in patent documents 2 to 5 can be used, which is described in detail in these prior art documents. Please refer to them for details.
The detector 5 is a digital X-ray detector provided on the opposite side surface inside the side surface on which the X-ray source 4b is provided, which is disposed so as to sandwich the subject 10, and detects the X-rays 4a transmitted through the subject 10, and the detector detects 2-dimensional image data and transmits a detection signal 5a to the control device 6 by wire or wirelessly. Examples of the detector 5 include a scintillator (scintillator), a CCD (charge coupled device), a CMOS (Complementary Metal Oxide Semiconductor), and a CdTe Semiconductor.
The X-ray irradiation and the detection direction of the detector may be either the horizontal direction or the vertical direction in the housing 3.
The control device 6 controls the irradiation timing of the X-ray 4a by a control signal 6a and the sensing timing of the detector 5 by a control signal 6b through a PC (personal computer) or the like, and further controls the driving of the belt to stop at the timing of the imaging. That is, the irradiation timing of the X-ray 4a, the sensing timing of the detector 5, and the stop of the belt are synchronized. Then, the processing is performed so that the detection signal 5a corresponding to the X-ray intensity sensed by the detector 5 can be displayed as a digital X-ray image 7 a.
Further, the control device 6 may have the following alarm generation function: when the shape of the object is similar to a dangerous object by performing image processing on the captured image or by comparing the captured image with a pre-recorded image or the like, it is determined that the object is a dangerous object, and a sound or light alarm is generated. Further, by displaying soft dangerous objects such as explosives and drugs on the monitor 7 in a color different from hard dangerous objects such as knives and guns, visual determination can be easily performed.
The monitor 7 displays the digital X-ray image 7 a. As the monitor 7, a display of a PC, an integrated display of a notebook PC, a tablet computer, and the like can be exemplified.
The portable conveyor type X-ray inspection apparatus 1 configured as described above performs X-ray imaging of the subject 10 by stopping the driving of the conveyor 2 (stopping the rotation of the belt 2 d) in synchronization with the irradiation of the X-rays 4a and the sensing of the detector 5, and performs an intermittent operation in which the stopping and movement of the conveyor 2 (the rotation of the belt 2 d) are repeated, thereby enabling both high-speed and high-precision X-ray inspection using the conveyor 2.
Description of the reference numerals
1: portable belt X-ray 3 g: a strip; 4: x-ray irradiation unit
A line inspection device; 3 h: a left side panel; 4 a: x-rays;
2: a conveyor belt; 3 i: a right side panel; 4 b: an X-ray source;
2 a: a foot portion; 3 j: a top plate; 4 c: a battery;
2 b: a caster wheel; 3 k: a lead plate; 4 d: an AC-DC adapter;
2 c: framing; 3 l: a column; 5: a detector;
2 d: a belt; 3 m: a groove; 5 a: detecting a signal;
2 e: a motor; 3 n: a beam; 6: a control device;
3: a frame body; 3 o: a groove; 6 a: a control signal;
3 a: a framework; 3 p: a receiving part; 6 b: a control signal;
3 b: an inlet unit; 3 q: a placement part; 6 c: a control signal;
3 c: an inlet; 3 r: a front retaining part; 7: a monitor;
3 d: a strip; 3 s: a rear retaining part; 7 a: a digital X-ray image;
3 e: an outlet unit; 3 t: a first sensor; 10: a subject (in imaging);
3 f: an outlet; 3 u: a second sensor; 10 a: a subject (before examination);
10 b: subject (after examination).
Claims (7)
1. A portable conveyor-type X-ray inspection apparatus, comprising:
a conveyor belt having a leg portion, placed on the leg portion, on which a subject is placed, moved to an X-ray imaging portion, and moved to a taking-out position;
an X-ray shielding frame surrounding an X-ray imaging portion of the conveyor belt;
an X-ray irradiation unit which is provided inside the housing and irradiates the subject with X-rays;
a digital detector that senses the X-rays transmitted through the subject;
a control device that processes a detection signal corresponding to the X-ray intensity sensed by the detector so as to be displayable as a digital X-ray image; and
a monitor that displays the digital X-ray image,
wherein the stop of the conveyor belt is synchronized with the irradiation of the X-ray and the sensing of the detector, the X-ray imaging of the subject is performed, and the intermittent operation in which the stop and the movement of the conveyor belt are repeated is performed, whereby both high-speed and high-precision X-ray inspection can be performed using the conveyor belt.
2. The portable conveyor-type X-ray inspection apparatus according to claim 1, characterized in that: the X-ray imaging apparatus includes a first sensor for sensing passage of the subject in front of the X-ray imaging portion, and stops driving of the conveyor belt by a control signal of the control device after a predetermined time from sensing of the first sensor, and performs the X-ray imaging.
3. The portable conveyor-type X-ray inspection apparatus according to claim 1, characterized in that: the frame body is fitted into a receiving part connected to the conveyor belt, and is made into a framework by a column and a beam having a groove, and an X-ray shielding lead plate is fitted into the groove so as to surround an X-ray imaging part and hang a plurality of lead-containing strips on an inlet and an outlet of the subject.
4. The portable conveyor-type X-ray inspection apparatus according to claim 1, characterized in that: disassembled and moved to the inspection site, and assembled at the inspection site.
5. A method of crime prevention characterized by: baggage inspection at the entrance of a vehicle or a meeting place using the portable conveyor-type X-ray inspection device of claim 1.
6. A method of protection according to claim 5, characterized in that: the vehicle is any one of an aircraft, a ship, or a new trunk line.
7. A method of protection according to claim 5, characterized in that: the meeting place is any one of a sports meeting place, a live broadcasting meeting place, a workshop meeting place, a discussion meeting place, a political gathering and a theme park.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2019/049256 WO2021124423A1 (en) | 2019-12-16 | 2019-12-16 | Portable conveyor-type x-ray inspection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115087859A true CN115087859A (en) | 2022-09-20 |
Family
ID=76477334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201980103555.XA Pending CN115087859A (en) | 2019-12-16 | 2019-12-16 | Portable belt type X-ray inspection device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7329881B2 (en) |
| CN (1) | CN115087859A (en) |
| WO (1) | WO2021124423A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4983176A (en) * | 1972-12-15 | 1974-08-09 | ||
| JPS4984198A (en) * | 1972-12-16 | 1974-08-13 | ||
| JPS5725384B2 (en) * | 1974-05-27 | 1982-05-29 | ||
| JPS5411911Y2 (en) * | 1974-06-05 | 1979-05-26 | ||
| JPH11230918A (en) * | 1998-02-12 | 1999-08-27 | Hitachi Medical Corp | X-ray inspection device |
| JP2005003480A (en) * | 2003-06-11 | 2005-01-06 | Ishida Co Ltd | X-ray examination apparatus |
| US9274065B2 (en) * | 2012-02-08 | 2016-03-01 | Rapiscan Systems, Inc. | High-speed security inspection system |
| JP6018723B1 (en) * | 2016-07-29 | 2016-11-02 | 株式会社Ｎａａエレテック | Baggage restriction curtain for X-ray inspection |
| JP6576373B2 (en) * | 2017-01-30 | 2019-09-18 | 日本信号株式会社 | X-ray inspection device and baggage inspection device |
-
2019
- 2019-12-16 JP JP2021565184A patent/JP7329881B2/en active Active
- 2019-12-16 CN CN201980103555.XA patent/CN115087859A/en active Pending
- 2019-12-16 WO PCT/JP2019/049256 patent/WO2021124423A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| JP7329881B2 (en) | 2023-08-21 |
| JPWO2021124423A1 (en) | 2021-06-24 |
| WO2021124423A1 (en) | 2021-06-24 |
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