CN102540268A - Human body security check system and scanning method - Google Patents
Human body security check system and scanning method Download PDFInfo
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- CN102540268A CN102540268A CN2010106242449A CN201010624244A CN102540268A CN 102540268 A CN102540268 A CN 102540268A CN 2010106242449 A CN2010106242449 A CN 2010106242449A CN 201010624244 A CN201010624244 A CN 201010624244A CN 102540268 A CN102540268 A CN 102540268A
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Abstract
The invention discloses a human body security check system which comprises a delivery mechanism, a first check device and a second check device, wherein the delivery mechanism is used for delivering pedestrians to be checked along the delivery direction; the first check device is arranged on the upstream of the delivery mechanism along the delivery direction, and comprises a first radiation source, a first flying spot device and a first detector; the second check device is arranged at the downstream of the delivery mechanism along the delivery direction, and comprises a second radiation source, a second flying spot device and a second detector, wherein the first check device is arranged to scan the frontage of the pedestrians to be checked, and the second check device is arranged to scan the back of the pedestrians to be checked. Additionally, the invention also discloses a scanning method of the human body security check system.
Description
Technical field
The present invention relates to the Application of Nuclear Technology field, particularly utilize backscattering technique human body to be carried out the system and the scan method of safety check.
Background technology
Human body safety check imaging system based on backscattering technique of the prior art can be divided into following several kinds of mode of operations according to the difference of image-forming principle:
Horizontal flying spot, promptly ray along transverse movement, is accomplished the scanning of first dimension at human body surface; Ray generator, flying spot mechanism and detector be motion vertically together, accomplishes the scanning of second dimension, thereby obtains the two dimensional image of human body surface;
Horizontal flying spot, promptly ray along transverse movement, is accomplished the scanning of first dimension at human body surface; Ray generator and flying spot mechanism swing up and down, the vertical same moved further of detector, accomplish the scanning of second dimension, thereby obtain the two dimensional image of human body surface;
Vertical flying spot, promptly ray moves along the height direction at human body surface, accomplishes the scanning of first dimension; The scanning of second dimension is accomplished in the along continuous straight runs motion together of ray generator, flying spot mechanism and detector, thereby obtains the two dimensional image of human body surface;
Vertical flying spot, promptly ray moves along the height direction at human body surface, accomplishes the scanning of first dimension; Ray generator and flying spot mechanism detector horizontal hunting, the detector along continuous straight runs is synchronized with the movement simultaneously, accomplishes the scanning of second dimension, thereby obtains the two dimensional image of human body surface.
In order to realize above-mentioned scan mode, safe examination system needs the device of realizing flying spot, but also needs to consider the motion problems and the stationary problem of ray generator, flying spot mechanism and detector.Strengthen the complexity of system on engineering and increased the instability of system; Second kind of above-mentioned in addition array mode owing to will realize swinging up and down of ray generator and flying spot mechanism, than lossy, influenced the life-span of system to the bearing oil of flying spot device.
The another one aspect in the actual use of human body security check system, need scan respectively the front and back of human body.Under the situation of using single device, the scanning of one whole needs the front of scanning human body earlier, scans the back side again after human body is turned round and stood firm then.The typical scan time of a single face is 8 seconds, and the time of turning round is assumed to be 2 seconds, and the time of scanning a people so is approximately 18 seconds, is converted into percent of pass, be about 200 people/hour.
Correspondingly, a kind of human body safety inspection system and method that improves setting need be provided, it can improve the equipment dependability of human body safety inspection system, can improve the checking efficiency and the percent of pass of equipment simultaneously.
Summary of the invention
To the problems referred to above, the present invention aims to provide a kind of more simple and efficient human body security check system, and complexity that can simplified system improves stability, and under the prerequisite that improves percent of pass, reduces those who are investigated's trouble as far as possible.
One aspect of the present invention provides a kind of human body safety inspection system, and comprising: connecting gear is used for transmitting along direction of transfer being examined the pedestrian; The said direction of transfer in edge is arranged on first testing fixture at the said connecting gear upper reaches, and said first testing fixture comprises first radiation source, the first flying spot device and first detector; Be arranged on second testing fixture in said connecting gear downstream along said direction of transfer; Said second testing fixture comprises second radiation source, the second flying spot device and second detector; Wherein said first testing fixture is arranged for the said pedestrian's of being examined front is scanned, and the reverse side that said second testing fixture is arranged for the said pedestrian of being examined scans.
Preferably, said first testing fixture and said second testing fixture are arranged to face each other with respect to said direction of transfer.
Preferably, said first, second flying spot device is arranged in the vertical direction provides the wand bundle to carry out the first dimension scanning; And said connecting gear is examined the pedestrian so that the second dimension scanning to be provided along said direction of transfer transmission.
Preferably, said connecting gear will be examined the pedestrian and at the uniform velocity transmit along said direction of transfer.
Preferably; Also comprise: first detecting unit that is arranged on the first testing fixture upper reaches along said direction of transfer; It is arranged to be examined the pedestrian and get into inspection during the position when detecting; Start said first radiation source and send radiation beam,, make said first radiation source stop to send radiation beam when detecting when being examined the pedestrian and leaving said inspection position; Be arranged on second detecting unit at the first testing fixture downstream and the second testing fixture upper reaches along said direction of transfer; It is arranged to be examined the pedestrian and get into inspection during the position when detecting; Start said second radiation source and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said second radiation source stop to send radiation beam.
Preferably, said first, second detecting unit is an optoelectronic switch.
Another aspect of the present invention provides a kind of scan method that is used for the human body safety inspection system, and it comprises step: utilize connecting gear, will be examined the pedestrian and transmit along direction of transfer; First testing fixture through be arranged on the said connecting gear upper reaches along said direction of transfer carries out first scan operation to the front that is examined the pedestrian of transmitting, and said first testing fixture comprises first radiation source, the first flying spot device and first detector; And after accomplishing said first scan operation; Second testing fixture through be arranged on said connecting gear downstream along said direction of transfer carries out second scan operation to the reverse side that is examined the pedestrian that transmits, and said second testing fixture comprises second radiation source, the second flying spot device and second detector.
The technique effect of at least one aspect of the present invention is: motion is simple.What human body security check system provided by the present invention need keep moving is flying spot device and connecting gear, and it is static that ray emitter and detector all keep, thereby the structure of system is very simple, has reduced manufacture difficulty and has improved the stability of equipment.
In addition, those who are investigated only need go on connecting gear and keep about tens second time motionlessly can accomplish inspection, operation such as need not to turn round, thereby have reduced those who are investigated's trouble.、
In addition, through adopting human body safety inspection system and the scan method among the present invention, it has improved the percent of pass of equipment.This equipment can scan the another one human body after the one side of a human body is accomplished scanning at once, has effectively improved checking efficiency.According to single face typical scan time is to calculate in 8 seconds, supposes that continuous 2 person-to-personly are spaced apart 2 seconds, owing to adopted line production, in fact a human body is realized that the scanning of a pros and cons only needs about 10 seconds so, percent of pass bring up to 360 people/hour.
Description of drawings
From combine the description of accompanying drawing to embodiment subsequently, these of exemplary embodiment of the present invention and/or other aspects and advantage will become obvious and be more readily understood, in the accompanying drawings:
Fig. 1 is the synoptic diagram of human body security check system of the present invention.
Embodiment
Pass through embodiment below, and combine accompanying drawing 1, do further bright specifically technical scheme of the present invention.In instructions, same or analogous drawing reference numeral is indicated same or analogous parts.Following explanation to embodiment of the present invention is intended to present general inventive concept of the present invention is made an explanation with reference to accompanying drawing, and is not to be understood that to a kind of restriction of the present invention.
As shown in Figure 1, according to one embodiment of the present invention, this human body safety inspection system comprises: connecting gear 5, first testing fixture 10 and second testing fixture 20.Wherein, this connecting gear 5 is used for transmitting along direction of transfer A being examined pedestrian S1; First testing fixture 10 comprises first radiation source 11, the first flying spot device 21 and first detector 31, and first testing fixture 10 is arranged on said connecting gear 5 upper reaches along said direction of transfer A.Second testing fixture 20 comprises second radiation source 12, the second flying spot device 12 and second detector 32, and second testing fixture 20 is arranged on said connecting gear downstream along said direction of transfer A.Wherein said first testing fixture 10 is arranged for the said pedestrian's of being examined front is scanned, and the reverse side that said second testing fixture 20 is arranged for the said pedestrian of being examined scans.
Preferably, X ray that ray emitter 11 sends becomes the pen bundle of in the vertical direction after through flying spot device 11, the scanning spot in the human body upper edge height direction carry out the scanning of first dimension; Be examined human body and stand in transfixion on the connecting gear, the human body uniform motion, thereby accomplished the ray scanning horizontal,, obtain the two dimensional image of human body one side in conjunction with the longitudinal scanning of flying spot to human body by the connecting gear band.In like manner, ray emitter 12, flying spot device 22 can obtain the two dimensional image of human body another side.
Preferably, first testing fixture 10 is arranged to face each other with respect to said direction of transfer with said second testing fixture 20.
Preferably, first, second flying spot device 11,12 is arranged in the vertical direction provides the wand bundle to carry out the first dimension scanning; And connecting gear 5 is examined the pedestrian so that the second dimension scanning to be provided along said direction of transfer transmission.
Preferably, connecting gear 5 will be examined the pedestrian and at the uniform velocity transmit along said direction of transfer.
Preferably; Also comprise: first detecting unit 51 that is arranged on first testing fixture, 10 upper reaches along said direction of transfer; It is arranged to when detecting when being examined pedestrian S1 and getting into the inspection position; Start said first radiation source 11 and send radiation beam,, make said first radiation source 11 stop to send radiation beam when detecting when being examined pedestrian S1 and leaving said inspection position; Be arranged on second detecting unit 52 at first testing fixture, 10 downstream and second testing fixture, 20 upper reaches along said direction of transfer; It is arranged to when detecting when being examined pedestrian S2 and getting into the inspection position; Start said second radiation source 12 and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said second radiation source 12 stop to send radiation beam.
Preferably, said first, second detecting unit 51,52 is an optoelectronic switch.
The another one aspect, the scan method of human body security check system of the present invention comprises the steps: to utilize connecting gear 5, will be examined pedestrian S1 and transmit along direction of transfer A; First scan operation is carried out in the front that is examined pedestrian S1 through be arranged on 10 pairs of transmission of first testing fixture at the said connecting gear upper reaches along said direction of transfer A; After accomplishing said first scan operation, carry out second scan operation through the reverse side that is examined pedestrian S2 that is arranged on 20 pairs of transmission of second testing fixture in said connecting gear 5 downstream along said direction of transfer A.
Said first testing fixture and said second testing fixture are arranged to face each other with respect to said direction of transfer.
Preferably; 51 couples of pedestrians to be detected of first detecting unit through be arranged on first testing fixture, 10 upper reaches along said direction of transfer A detect; Wherein be examined the pedestrian and get into inspection during the position when detecting; Start said first radiation source 11 and send radiation beam,, make said first radiation source 11 stop to send radiation beam when detecting when being examined the pedestrian and leaving said inspection position; 52 couples of pedestrians to be detected of second detecting unit through be arranged on first testing fixture, 10 downstream and second testing fixture, 20 upper reaches along said direction of transfer A detect; Wherein be examined the pedestrian and get into inspection during the position when detecting; Start said second radiation source 12 and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said second radiation source 12 stop to send radiation beam.
Obtain the tow sides scan image of human body S 1 according to above-mentioned first testing fixture 10 and second testing fixture 20.Human body S1 only need go on connecting gear and keep a period of time motionless, and system has just realized complete scan to human body S1.
When human body S1 had accomplished the scanning before first equipment, human body S2 can go on the connecting gear receiving check, realized gapless line production, made every equipment in running order always.
Although illustrated and described embodiments of the invention; Yet those skilled in the art can understand; Under the situation that does not break away from principle of the present invention and marrow, can make variation to said embodiment, protection scope of the present invention is limited in claim and the equivalent thereof.
Claims (12)
1. human body safety inspection system comprises:
Connecting gear is used for transmitting along direction of transfer being examined the pedestrian;
The said direction of transfer in edge is arranged on first testing fixture at the said connecting gear upper reaches, and said first testing fixture comprises first radiation source, the first flying spot device and first detector;
The said direction of transfer in edge is arranged on second testing fixture in said connecting gear downstream, and said second testing fixture comprises second radiation source, the second flying spot device and second detector,
Wherein said first testing fixture is arranged for the said pedestrian's of being examined front is scanned, and the reverse side that said second testing fixture is arranged for the said pedestrian of being examined scans.
2. human body safety inspection according to claim 1 system is characterized in that:
Said first testing fixture and said second testing fixture are arranged to face each other with respect to said direction of transfer.
3. human body safety inspection according to claim 1 and 2 system is characterized in that:
Said first, second flying spot device is arranged in the vertical direction provides the wand bundle to carry out the first dimension scanning; And
Said connecting gear transmits along said direction of transfer and is examined the pedestrian so that the second dimension scanning to be provided.
4. human body safety inspection according to claim 3 system is characterized in that:
Said connecting gear will be examined the pedestrian and at the uniform velocity transmit along said direction of transfer.
5. human body safety inspection according to claim 4 system is characterized in that also comprising:
Be arranged on first detecting unit at the first testing fixture upper reaches along said direction of transfer; It is arranged to be examined the pedestrian and get into inspection during the position when detecting; Start said first radiation source and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said first radiation source stop to send radiation beam;
Be arranged on second detecting unit at the first testing fixture downstream and the second testing fixture upper reaches along said direction of transfer; It is arranged to be examined the pedestrian and get into inspection during the position when detecting; Start said second radiation source and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said second radiation source stop to send radiation beam.
6. human body safety inspection according to claim 5 system is characterized in that:
Said first, second detecting unit is an optoelectronic switch.
7. scan method that is used for the human body safety inspection system, it comprises step:
Utilize connecting gear, will be examined the pedestrian and transmit along direction of transfer;
First testing fixture through be arranged on the said connecting gear upper reaches along said direction of transfer carries out first scan operation to the front that is examined the pedestrian of transmitting, and said first testing fixture comprises first radiation source, the first flying spot device and first detector; And
After accomplishing said first scan operation; Second testing fixture through be arranged on said connecting gear downstream along said direction of transfer carries out second scan operation to the reverse side that is examined the pedestrian that transmits, and said second testing fixture comprises second radiation source, the second flying spot device and second detector.
8. scan method according to claim 7 is characterized in that:
Said first testing fixture and said second testing fixture are arranged to face each other with respect to said direction of transfer.
9. according to claim 7 or 8 described scan methods, it is characterized in that:
Said first, second flying spot device is arranged in the vertical direction provides the wand bundle to carry out the first dimension scanning; And
Said connecting gear transmits along said direction of transfer and is examined the pedestrian so that the second dimension scanning to be provided.
10. scan method according to claim 9 is characterized in that:
Said connecting gear will be examined the pedestrian and at the uniform velocity transmit along said direction of transfer.
11. scan method according to claim 10 is characterized in that also comprising step:
First detecting unit through be arranged on the first testing fixture upper reaches along said direction of transfer detects pedestrian to be detected; Wherein be examined the pedestrian and get into inspection during the position when detecting; Start said first radiation source and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said first radiation source stop to send radiation beam;
Second detecting unit through be arranged on the first testing fixture downstream and the second testing fixture upper reaches along said direction of transfer detects pedestrian to be detected; Wherein be examined the pedestrian and get into inspection during the position when detecting; Start said second radiation source and send radiation beam; When detecting when being examined the pedestrian and leaving said inspection position, make said second radiation source stop to send radiation beam.
12. scan method according to claim 11 is characterized in that:
Said first, second detecting unit is an optoelectronic switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106242449A CN102540268A (en) | 2010-12-31 | 2010-12-31 | Human body security check system and scanning method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106242449A CN102540268A (en) | 2010-12-31 | 2010-12-31 | Human body security check system and scanning method |
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| CN102540268A true CN102540268A (en) | 2012-07-04 |
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| CN2010106242449A Pending CN102540268A (en) | 2010-12-31 | 2010-12-31 | Human body security check system and scanning method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901491A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system |
| CN103901494A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system and method |
| CN103901486A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body backscatter safety check system and method |
| EP3312641A1 (en) * | 2016-10-18 | 2018-04-25 | Nuctech Company Limited | Method, apparatus and system for scanning and imaging |
| CN108490497A (en) * | 2018-02-05 | 2018-09-04 | 清华大学 | Safe examination system and method |
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| US6151381A (en) * | 1998-01-28 | 2000-11-21 | American Science And Engineering, Inc. | Gated transmission and scatter detection for x-ray imaging |
| CN1995992A (en) * | 2006-12-29 | 2007-07-11 | 金海润通国际科技有限公司 | Humanized human body and portable case detector |
| CN201974533U (en) * | 2010-12-31 | 2011-09-14 | 同方威视技术股份有限公司 | Human body safety check system |
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2010
- 2010-12-31 CN CN2010106242449A patent/CN102540268A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6151381A (en) * | 1998-01-28 | 2000-11-21 | American Science And Engineering, Inc. | Gated transmission and scatter detection for x-ray imaging |
| CN1995992A (en) * | 2006-12-29 | 2007-07-11 | 金海润通国际科技有限公司 | Humanized human body and portable case detector |
| CN201974533U (en) * | 2010-12-31 | 2011-09-14 | 同方威视技术股份有限公司 | Human body safety check system |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901491A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system |
| CN103901494A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body back-scattering security check system and method |
| CN103901486A (en) * | 2012-12-27 | 2014-07-02 | 同方威视技术股份有限公司 | Human body backscatter safety check system and method |
| WO2014101593A1 (en) * | 2012-12-27 | 2014-07-03 | 同方威视技术股份有限公司 | Human-body back scattering security check system |
| US9366642B2 (en) | 2012-12-27 | 2016-06-14 | Nuctech Company Limited | Back scattering inspection systems for human body |
| EP3312641A1 (en) * | 2016-10-18 | 2018-04-25 | Nuctech Company Limited | Method, apparatus and system for scanning and imaging |
| CN108490497A (en) * | 2018-02-05 | 2018-09-04 | 清华大学 | Safe examination system and method |
| CN108490497B (en) * | 2018-02-05 | 2024-03-22 | 清华大学 | Security inspection system and method |
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Application publication date: 20120704 |