CN200984188Y - Middle position direct projection type double energy X ray human body inside and outside parts examining system - Google Patents
Middle position direct projection type double energy X ray human body inside and outside parts examining system Download PDFInfo
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- CN200984188Y CN200984188Y CN 200620134232 CN200620134232U CN200984188Y CN 200984188 Y CN200984188 Y CN 200984188Y CN 200620134232 CN200620134232 CN 200620134232 CN 200620134232 U CN200620134232 U CN 200620134232U CN 200984188 Y CN200984188 Y CN 200984188Y
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Abstract
The utility model discloses a neutral direct beam type dual-energy x-ray detecting system for stored materials inside and outside of human body, comprising an X-ray source, an X-ray collimating part, a detecting passageway, a manned slide plate with an armrest, an X-ray detector, an image collecting system, a computer image processing and controlling system and an operating console; wherein the X-ray source is arranged on a high position, aligning the abdomen of the detected human; the X-ray collimating part comprises an X-ray source collimating apparatus and a protective cover; the X-ray detector adopts the dual-energy detector, respectively detecting the high and low energy X-ray penetrating the human body; the image processing system processes composite treatment to the collected X-ray dual-energy signal, using different colors to indicate the detected material images with different material characteristics. The utility model can detect the storing thing out the human body, besides, in particular aiming directly at discerning the drug in the human body, which mainly distinguishes the stored drug and other contrabands which are in the stomach, the rectum and the vagina.
Description
Technical field
This utility model relates to a kind of public safety checkout facility, relates in particular to the interior outer Tibet of a kind of X ray human body quality testing and looks into equipment.
Background technology
The outer Tibet quality testing is looked into equipment in the present existing X ray human body, and light source position generally all adopts x-ray source in remote placement, and the X-ray bundle is faced upward side according to human body.The imaging aspect adopts traditional x-ray imaging technology, and the monoergic signal that collects is handled, and discerns by the gray-level and the graph outline of inspected object fluoroscopy images.This identification more depends on image processing techniques, and true resolution is lower.Gun in the contraband, the article that the cutter isodensity is bigger all have metastable profile, and its feature is obvious, and traditional x-ray imaging technology generally can identify.And for explosive and drugs, traditional x-ray imaging technology but is difficult to identification, especially is difficult to identification and ensconces the intravital drugs of people.Because explosive and drugs all are Organic substances, atomic number is approaching, and is also very approaching with the atomic number of tissue, and they are less to the radiating absorbance difference of X-ray, and the grey scale change of image is also less, thereby differentiates relatively difficulty from gray level.Explosive and drugs are not because there is a specific shape in addition, thereby single to differentiate from appearance profile also be the comparison difficulty.
The utility model content
This utility model has solved the problem that existing equipment exists by using one to have the highly compressed wide spectrum x-ray source of higher ray tested personnel are carried out line sweep, makes tested personnel drugs that hide the inside and outside etc. fixedly the contraband of profile is not clear to debate.
The outer Tibet quality testing is looked into system in a kind of meta direct-injection type double energy X-ray human body, manned slide plate, X-ray detector, image capturing system, Computer Image Processing and the control system and the operating console that comprise x-ray source, X ray collimating components, inspection passage, Armrest, wherein:
Described x-ray source is high-order to be placed, and aims at tested personnel's abdominal part;
Described X ray collimating components is made up of radiographic source collimator and protective cover two parts;
Described X-ray detector adopts dual energy detector, surveys the high and low power X ray that penetrates detected human body respectively;
Described image processing system carries out Combined Processing to the X ray dual intensity signal that collects, and represents the analyte image of dissimilar material properties with different colours.
According to tested personnel's average height the upright position of described x-ray source is set, guarantees that simultaneously the maximum inclination angle of x-ray bombardment human body is not more than 35 °.
Described manned slide plate adopts aluminium material skateboard or slider structure, steadily drags by motor, conveyer belt.
In checking process, described manned slide plate moves reciprocatingly, every inspection once, slide plate experience is once reciprocal; When slide plate arrives two ends, be subjected to limit switch control and out of service.
Described inspection passage adopts the door case type structure, and detector is installed in the doorframe, and the arrangement architecture of detector can be linear, L shaped or three kinds of forms of C shape.
Compared with prior art, the beneficial effects of the utility model are:
(1) because the human abdomen is the key position of hiding drugs in human bodies, this utility model is aimed at abdominal part with the high-order placement of x-ray source, make that the transmission image of abdominal part is the most true to nature, penetrance is best, under equal transmission image prescription, the exposure dose minimum of this scheme, image restoring is the most accurate; Floor space obviously reduces simultaneously, is convenient to the placement and the transportation of equipment;
(2) dual energy detects and makes image level abundant, and testing result is more accurate;
(3) Organic substance and inorganic matter show with the different colours difference, have effectively given prominence to drugs and other contraband, and operator can be distinguished better;
(4) conveyer belt drags the aluminum slide plate, and noise is low, moves steadily;
(5) door case type channel set passage and detector are in one, and structure is very compact, detector system sealing, protection against the tide.
(6) chain heavy dose of leakage of ray that prevents that any maloperation from causing of security protection makes system more safe and reliable.
Description of drawings
Fig. 1 is this utility model structural representation;
Fig. 2 is this utility model fundamental diagram;
Fig. 3 is the human body phantom image that collects.
The specific embodiment
Now reaching embodiment in conjunction with the accompanying drawings is described in further detail this utility model.
With reference to figure 1, be the structural representation of this utility model system.Wherein 1 is the X ray collimating components, has effectively utilized x-ray source, prevents the ray leakage, and point source is become fan-shaped bright finish, becomes straight line.X ray collimating components 1 is made up of radiographic source collimator and protective cover two parts, and the radiographic source collimator is directly controlled the width and the deflection angle of X ray outgoing seam; 2 is x-ray source, and its source tested personnel's sole height H of heart distance is 860mm, aims at the abdominal part of height 1.7m human body substantially, is applicable to that the highest height reaches the tested personnel of 2m, and the effective angle of departure of ray is 69.4 °, complete machine width L
1Be 1852mm, the allowable angle of inclination of roentgenization human body is 34.7 °.Can adjust the height and position of x-ray source 2 according to tested personnel's average height, also want corresponding adjustment complete machine width L simultaneously
1, with the maximum inclination angle that guarantees the roentgenization human body less than 35 °.3 is computer, and 4 is subrack, and 5 is fan.6 is slide plate, drags the aluminum slide plate with conveyer belt, and noise is low, moves steadily.The aluminum slide plate has only 3mm thick, and the unique design of structure has reached it and dragged and indeformable rigidity requirement.In the moving process of aluminum slide plate, finish line sweep to human body, generate stay-in-grade radioscopic image synchronously.Single detection time, single checked that dosage is less than 2.5 μ Sv less than 15 seconds.7 is control station, and 9 is signal acquiring system.8 is the door case type passage, and its compact conformation with detector and passage organic unity, can be regulated detector position.Passage inner width L
2Be 700mm, doorframe thickness 354mm, doorframe hem width 90mm, the thick 70mm of lintel, whole sensation is light and handy, no sense of depression.At inner detector and the signal gain circuit board installed of door body.Detector circuit lath surface gluing, circuit board soaks three anti-lacquers (waterproof, protection against the tide, anti-salt fog), the inner desiccant of placing of door body, and door-plate adds the vacuum rubber sealing gasket, these measures reach moistureproof effect substantially, and the equipment that makes can be applied in the relatively moister environment such as south, seashore.Between gate, the outside door-plate and door body of passage 8, between the lintel lid and lintel body of passage 8, and between precollimator lid and the precollimator casing, interlock switch can be installed.Selected interlock switch meets the IEC60947-5-1 standard.The disconnection of any one switch all can cause system cut-off, stops to stop to launch X ray to the power supply of high pressure radiographic source.
With reference to figure 2, be this utility model fundamental diagram.When system starts working, power up by control station 7 keyboards, open computer 3, x-ray source 2 is instructed pipe, slide plate 6 returns initial position.After all preparations were finished, system's ready lamp (green) was bright, and expression can be carried out human body at present and check.At this moment, tested personnel climb up slide plate, hands, foot are placed on yellow indicating positions and put on an eyeshade.Equipment operator is sent slide plate 6 advancement commands by control station 7 keyboards, x-ray source 2 preheatings, and X ray is launched immediately, and the ray emission lamp is bright, screen spool color display.After sled mechanism was all by the X ray covering of the fan, spool stopped, and showed the human body all images on the screen, and sled mechanism stops under limit switch control, and tested personnel get off, and slide plate 6 returns initial position under operator's control.An end-to-end finishes.
Next image is handled and differentiated, its specific practice is: utilize function key on control station 7 keyboards to the image that the collects display process of being correlated with, for example step by step highlight, add dark, edge enhancing, subregion amplification, white and black displays, image inversion etc., these operations are supplementary meanss that drugs are judged, compare each image, judged result is more accurate.Each tested personnel's image all can be stored in the hard disc of computer automatically, by pulling back image, can check the image that had before obtained, and these images can also be handled with the image processing function key of keyboard.
System utilizes the material analysis software of special-purpose software bag that image is carried out material analysis and processing, calculates the equivalent atom ordinal number of various article, thereby distinguishes Organic substance, inorganic matter and mixture, and gives different colors when showing.Usually, less than 10, then material is classified as Organic substance, be shown as Yellow-to-orange as the equivalent atom ordinal number; As the equivalent atom ordinal number is 10 to 17, then material is classified as mixture, shown in green to cyan; Greater than 17, then material is classified as inorganic matter as the equivalent atom ordinal number, be shown as blueness.The object blocked up or density is excessive owing to can not be penetrated by X ray, all is shown as dark red.If it is orange-yellow that the article in the image are rendered as, then should pay special attention to.
Fig. 3 is the human body phantom image that this utility model system acquisition arrives.As we can see from the figure, tested personnel's gastric and intravaginal drugs 11 and 12 are synthetic equivalent drugs.Pistol 10 is not external.External indistinct lines are medicated clothing.Tissue and drugs are orange-yellow, but difference to some extent on gray scale.The Organic substance basic display is orange-yellow, the atomic number height, and density is big, and gray level is also high.
The above embodiment only is a preferred embodiment of the present utility model; this utility model is not limited to the foregoing description; for persons skilled in the art; the any conspicuous change of under the prerequisite that does not deviate from this utility model principle it being done all belongs to the protection domain of design of the present utility model and claims.
Claims (4)
1. the interior outer Tibet of a meta direct-injection type double energy X-ray human body quality testing is looked into system, comprise manned slide plate, X-ray detector, image capturing system, Computer Image Processing and control system and the operating console of x-ray source, X ray collimating components, inspection passage, Armrest, it is characterized in that:
Described x-ray source is high-order to be placed, and aims at tested personnel's abdominal part;
Described X ray collimating components is made up of radiographic source collimator and protective cover two parts;
Described X-ray detector adopts dual energy detector, surveys the high and low power X ray that penetrates detected human body respectively;
Described image processing system carries out Combined Processing to the X ray dual intensity signal that collects, and represents the analyte image of dissimilar material properties with different colours.
2. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: according to tested personnel's average height the upright position of described x-ray source is set, guarantees that simultaneously the maximum inclination angle of x-ray bombardment human body is not more than 35 °.
3. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: described manned slide plate adopts aluminium material skateboard or slider structure, steadily drags by motor, conveyer belt.
4. the outer Tibet quality testing is looked into system in the human body according to claim 1, it is characterized in that: described inspection passage adopts the door case type structure, and detector is installed in the doorframe, and the arrangement architecture of detector can be linear, L shaped or three kinds of forms of C shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620134232 CN200984188Y (en) | 2006-11-01 | 2006-11-01 | Middle position direct projection type double energy X ray human body inside and outside parts examining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620134232 CN200984188Y (en) | 2006-11-01 | 2006-11-01 | Middle position direct projection type double energy X ray human body inside and outside parts examining system |
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| Publication Number | Publication Date |
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| CN200984188Y true CN200984188Y (en) | 2007-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200620134232 Expired - Fee Related CN200984188Y (en) | 2006-11-01 | 2006-11-01 | Middle position direct projection type double energy X ray human body inside and outside parts examining system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034071B (en) * | 2006-11-01 | 2010-12-01 | 公安部第一研究所 | System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray |
| CN102455305A (en) * | 2010-11-01 | 2012-05-16 | 北京中盾安民分析技术有限公司 | Device for detecting hidden matters on human body by using dual-energy X-rays and image processing method used by device |
| CN106910172A (en) * | 2017-02-22 | 2017-06-30 | 公安部第研究所 | A kind of image processing method and device |
-
2006
- 2006-11-01 CN CN 200620134232 patent/CN200984188Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101034071B (en) * | 2006-11-01 | 2010-12-01 | 公安部第一研究所 | System for inspecting hiding objects inside-outside human body by central radiated dual-energy X-ray |
| CN102455305A (en) * | 2010-11-01 | 2012-05-16 | 北京中盾安民分析技术有限公司 | Device for detecting hidden matters on human body by using dual-energy X-rays and image processing method used by device |
| CN102455305B (en) * | 2010-11-01 | 2014-06-18 | 北京中盾安民分析技术有限公司 | Image processing method used by device for detecting hidden matters on human body by using dual-energy X-rays |
| CN106910172A (en) * | 2017-02-22 | 2017-06-30 | 公安部第研究所 | A kind of image processing method and device |
| CN106910172B (en) * | 2017-02-22 | 2020-02-28 | 公安部第一研究所 | Image processing method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071205 Termination date: 20101101 |