CN101614682B - Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance - Google Patents
Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance Download PDFInfo
- Publication number
- CN101614682B CN101614682B CN2008101157866A CN200810115786A CN101614682B CN 101614682 B CN101614682 B CN 101614682B CN 2008101157866 A CN2008101157866 A CN 2008101157866A CN 200810115786 A CN200810115786 A CN 200810115786A CN 101614682 B CN101614682 B CN 101614682B
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- detection subsystem
- safety check
- check door
- drugs
- subsystem
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N2001/022—Devices for withdrawing samples sampling for security purposes, e.g. contraband, warfare agents
- G01N2001/024—Devices for withdrawing samples sampling for security purposes, e.g. contraband, warfare agents passengers or luggage
Abstract
The invention discloses a safety check door. The safety check door comprises a drug/exploder detection subsystem, a special nuclear substance/radioactive substance detection subsystem, a control analysis subsystem and an isolation device, wherein the three subsystems are arranged together inside a check door shell; and the isolation device is used for isolating the drug/exploder detection subsystem from the special nuclear substance/radioactive substance detection subsystem so that both subsystems can operate independently without interfering with each other. Therefore, both detection subsystems are combined together and operate reliably to complete the task of checking the drug/exploder and the special nuclear substance/radioactive substance carried by pedestrians; thus, the safety check door increases check efficiency while ensuring accuracy and reliability.
Description
Technical field
The present invention relates to a kind of safety check door, specifically, relate to a kind of safety check door that can detect drugs/explosive and special nucleus material/radioactive material simultaneously.
Background technology
Since " 911 " incident, anti-terrorism becomes the common topic of global range.Terrorist incident all took place in states such as the U.S., Russia, Britain, Egypt, Spain, Indonesia, India, and two wars have also been started for this reason by the U.S..The terrorist utilizes " people's bullet " to attack becomes a kind of important failure mode, and common people's safety life and society stable constituted huge threat.But the popular in the market safety door to pedestrian's inspection generally can only be surveyed magnetic metal, and is powerless to non-magnetic object.And explosive, drugs and the radioactive material that can make dirty bomb are non-magnetic material a bit, and common safety door can't be discerned, this concerning safety inspection, great leak beyond doubt.
Along with the development of drugs/explosive (IMS) technology, suspicious detection of particulates such as the drugs that the pedestrian is carried, explosive become possibility.Recent years, external expert checks that to the gate-type pedestrian of application IMS technology technology carried out a lot of researchs, and has applied for multinomial patent.As: EP1286151A1, US5915268A1, US6073499A1 and US2001049926A1 or the like.In these patents,, the structure of multiple door has been proposed for the ease of collecting air-flow; In order to improve collection efficiency, the proposition that has pre-concentration thought (like US6073499A1 etc.); In order to blow off carrying suspicious particulate in the human body clothing; Blow checked pedestrian (like US2001049926A1) by what begin with continuous flow, develop into and add the shower nozzle that sprays gases at high pressure and blow and beat clothing, the direction that the air-flow of air blowing and shower nozzle are jet; Or to the top; Or, want to have use up various ways (like EP1286151A1, US5915268A1 and US6073499A1) downwards.
Aspect detection special nucleus material and radioactive material; Patent CN02289591.4 has proposed a kind of gate-type gamma activity safety detection device; Through having taked baffle, make and have only the gamma activity in a certain solid angle scope of scintillator one side just can be detected measuring gamma active NaI (Tl) scintillator; And a plurality of gamma ray probes are configured in the both sides door pillar of making the doorframe shape, improved detection efficiency to radiomaterial.Patent US2006/028494 A1 has also proposed a kind of radiological safety detecting gate, uses a plurality of detectors and collimator array, has realized the function that γ and n are surveyed simultaneously.
Especially the interference problem between the system makes the device that occurs detecting simultaneously drugs/explosive substance and special nucleus material/radioactive material in the market as yet but for various reasons.
Summary of the invention
The present invention is just in order to solve the problems referred to above that exist in the prior art; Through the drugs/explosive detection subsystem that adopts quarantine measures to prevent well to be installed together and the phase mutual interference between special nucleus material/radioactive material detection subsystem, thereby when guaranteeing inspection reliability and accuracy, improved checking efficiency.
According to the present invention; A kind of safety check door is provided, has comprised drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem and control analysis subsystem, this three sub-systems is installed in the inspection door housing jointly; It is characterized in that; Said safety check door also is provided with spacer assembly, and said spacer assembly is used to make drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem to isolate each other, thereby work alone without interfering with each other.
Said spacer assembly comprises wave filter, decoupling device and the photoisolator etc. on signal wire, power lead and the ground wire that is arranged on special nucleus material/radioactive material detection subsystem and/or drugs/explosive detection subsystem.
Said spacer assembly also can comprise the shielding part of being processed by shielding material, and said shielding part is arranged on the ray detector and prime amplifier in special nucleus material/radioactive material detection subsystem.
Preferably, said safety check door can further comprise collimating apparatus, and said collimating apparatus is installed on the ray detector in special nucleus material/radioactive material detection subsystem, the investigative range of regulating ray detector.
In the face of the detailed description of the embodiment of the invention, it is more obvious that additional objects and advantages of the present invention will become from down.
Description of drawings
Fig. 1 is the stereographic map that illustrates according to the total structure of safety check door of the present invention;
Fig. 2 is the cut-open view according to safety check door of the present invention as shown in Figure 1, has schematically shown the internal structure of this safety check door;
Fig. 3 is the partial perspective view according to safety check door of the present invention, has specifically illustrated the layout of the air nozzle of drugs/explosive detection subsystem;
Fig. 4 has specifically illustrated the sensing with a plurality of air nozzles on one deck;
Fig. 5 shows according to the collimating apparatus of the layout of the air knife on the roof of safety check door of the present invention and sidepiece and ray detector.
Embodiment
Fig. 1 shows the total structure according to safety check door of the present invention.As shown in Figure 1, be provided with air intake opening 3, exhausr port 14, user terminal 24, pilot lamp 25 and air nozzle 11 according to the shell of inspection door 29 of the present invention.In addition, though do not illustrate among Fig. 1, also be provided with air knife 10 (shown in Fig. 5) on the roof of the sense channel of inspection door 29.Pilot lamp 25 is used for indication and is examined the residing several kinds of states of pedestrian: checking (amber light)/free time (green light)/warning (red light).User terminal 24 (for example, LCD display) is used for showing in detail check result.
Fig. 2 shows in detail the internal structure according to safety check door of the present invention.As shown in Figure 2, drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem and control analysis subsystem all are installed in the shell of safety check door.
Drugs/explosive detection subsystem comprises: air intake opening 3, air compressor 1, carrier gas air-flow blower fan 2, air knife draft tube 5, jet draft tube 6, solenoid valve 7, air knife inflatable mouth 9, air knife 10, air nozzle 11, gas outlet 13, exhausr port 14, drugs/explosive detection device (IMS) 20, suction fan 21, precondenser 22 and air entry 23.
Special nucleus material/radioactive material detection subsystem comprises: ray detector 8, collimating apparatus 4, ray detector signal wire 12, X-ray detection X subsystem controls box 18.
The control analysis subsystem comprises system's control computer 16 and overhead control cabinet 17.
Be installed in the enclosure of inspection door though it is pointed out that control analysis subsystem among this embodiment, according to actual needs, it also can be arranged on the outside of shell.
Owing in drugs/explosive detection subsystem many Electromagnetic Interference source (like compressor 1, blower fan 2, solenoid valve 7 etc.) is arranged, disturb so can produce special nucleus material/radioactive material detection subsystem, influence its detection accuracy and reliability.
For fear of the influence of above-mentioned interference, the present invention is provided with signal isolator 19, and the X-ray detection X control enclosure 18 of special nucleus material/radioactive material detection subsystem links to each other with overhead control cabinet 17 via signal isolator 19 (a kind of spacer assembly).Specifically, the signal isolator in the present embodiment 19 is arranged on wave filter, decoupling device and the photoisolator etc. on signal wire, power lead and the ground wire of special nucleus material/radioactive material detection subsystem.It is to be noted; Though shown in Fig. 2 is only in special nucleus material/radioactive material detection subsystem, to have used signal isolator 19; But this is not restrictive, can be at application signal isolator on drugs/explosive detection subsystem 19 or while application signal isolator 19 on these two detection subsystem yet.That is to say; Can on signal wire, power lead and the ground wire of drugs/explosive detection subsystem, wave filter, decoupling device and photoisolator etc. be set, perhaps can on signal wire, power lead and the ground wire of these two detection subsystem, wave filter, decoupling device and photoisolator etc. be set simultaneously.
Simultaneously, to disturb in order further reducing, to be provided with shielding part (another kind of spacer assembly) on ray detector in special nucleus material/radioactive material detection subsystem and the prime amplifier, this shielding part is processed by material that can the shielding space radiation.
In addition; The signal wire of the signal wire of drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem should be arranged apart as far as possible, promptly spatially is separated from each other, in the place that must intersect cabling; Adopt the square crossing wiring method, crosstalk avoiding to greatest extent.
On the other hand, from Fig. 2 and Fig. 5, can find out, in the present embodiment, be provided with collimating apparatus 4 in the outside of ray detector 8.The opening surface of collimating apparatus 4 is to detecting space 28, and its wall thickness is greater than 5～10mm, and material is generally lead.Its objective is the investigative range of regulating ray detector, reduce of the interference of outside ray seized pedestrian's check result.Can improve the reliability and the accuracy of inspection.
As shown in Figure 2, in order to reduce cost, two sides that detect space 28 are respectively with one group of ray detector 8.Can stagger each other in the position of the ray detector 8 of two sides, but that its search coverage should have slightly is overlapping, can not separate fully, to guarantee the reliability of check result.
Two sidewalls of sense channel are provided with a plurality of air nozzles 11.As shown in Figure 3, a plurality of air nozzle 11 layered arrangement generally are no less than 4 layers (among Fig. 3 being 5 layers), and each side is no less than 2 row (being 3 row among Fig. 3).As shown in Figure 4, air nozzle 11 directions of each layer are pointed to the center in the detection space at this layer place, to strengthen the ability of the suspicious particle that carries in the piping and druming clothing.The main direction of level of ejection air-flow is shown in Jet Stream direction 27.Air nozzle 11 general ON/OFF simultaneously with one deck; The air nozzle 11 timesharing ON/OFF of different layers generally open or close from top to bottom successively, wait each layer air nozzle 11 all to spray once after; Circulation from top to bottom again; Finish up to jet process, its switching sequence is sent by overhead control cabinet 17, realizes through the solenoid valve 7 of controlling each air nozzle 11 back.
As can be seen from Figure 5, in the present embodiment, be arranged on the air knife 10 of blowing on the roof of sense channel down and comprise four big air knives and two little air knives, and four big air knives are arranged around two little air knives.But it will be understood by those skilled in the art that this is exemplary, also can adopt other arrangement.
Principle of work of the present invention is described below.
1. the principle of work of drugs/explosive detection subsystem
As shown in Figure 2, air compressor 1 provides gases at high pressure, and pressure 0.2～0.8MPa is about preferred 0.5MPa.Gases at high pressure are provided for air nozzle 11 through air nozzle draft tube 6, each air nozzle 11 all passes through a solenoid valve 7 its jet/closed conditions of control.The sequential that system's control computer 16 is opened and closed through parts such as overhead control cabinet 17 and gas circuit control signal wire 30 control electromagnetic valve 7, air compressor 1, carrier gas air-flow blower fans 2.Air compressor 1 and carrier gas air-flow blower fan 2 inhaled airs are from air intake opening 3.
When the superiors' air nozzle 11 was started working for the 1st time, carrier gas air-flow blower fan 2 was also started working, and gave air knife 10 air feed as shown in Figure 5.Air-flow blows out from the air knife inflatable mouth 9 of air knife 10, forms the carrier gas air-flow, and its flow direction is shown in carrier gas air current flow direction 26.The effect of carrier gas air-flow is to drive air entry 23 blown down the suspicious particulate that comes by air nozzle 11.
The carrier gas air-flow that detects space 28 is by suction fan 21 inhale mouths 23.When the air communication that contains suspicious particulate of entering air entry 23 was crossed precondenser 22, suspicious particulate was adsorbed in the precondenser 22, and the air-flow after the filtration is discharged to through suction fan 21, gas outlet 13, exhausr port 14 among the atmosphere of outside.In the process of desorption, precondenser 22 disengages the suspicious particulate that is adsorbed onto come, and is sucked and analyzes by drugs/explosive detection device (IMS) 20, and waste gas is discharged among the atmosphere of outside through gas outlet 13, exhausr port 14.
Data by drugs/explosive detection device (IMS) 20 is surveyed are delivered to overhead control cabinet 17 through data circuit, send into system's control computer 16 again and analyze, and the result shows on user terminal 24 and pilot lamp 25.
When beginning to check, pilot lamp 25 shows idle (green light is bright), and it is good that checked pedestrian gets into the assigned address station of detecting space 28; That system begins is jet, blow, collect gas, delivers to drugs then, explosive detection device (IMS) 20 is surveyed, and finally provides analysis result by system's control computer 16.If find the vestige of Poison, explosive, then give the alarm pilot lamp 25 warnings (blinking red lamp) simultaneously; Can thing if do not find, then this inspection finishes, and pilot lamp 25 shows idle (green light is bright), waits for next tested person's entering.
2. the principle of work of X-ray detection X subsystem
Checked pedestrian gets into the assigned address that detects space 28; Native system begins startup work prior to drugs/explosive detection subsystem under the control of control analysis subsystem; After drugs/explosive detection subsystem finished one-shot measurement work, this subsystem finished this surveying work again.
Detect γ, n ray by ray detector 8, its detectable signal is sent into X-ray detection X subsystem controls box 18.Because the X-ray detection X subsystem is interfered easily; In order to prevent the undesired signal of drugs/explosive detection subsystem from the beginning; So signal, control line are through signal isolator 19; And signal isolator to overhead control cabinet signal wire 15 and 17 interconnection of overhead control cabinet, detection data is finally delivered to system's control computer 16 and is analyzed and handle, and its result delivers on the user terminal 24 and shows.Result displayed is the end product after the data of comprehensive two detection subsystem on the pilot lamp 25.
Like this,, two detection subsystem are combined and it is worked reliably, can accomplish the drugs/explosive and the task of special nucleus material/radioactive material that the inspection pedestrian carries simultaneously, in the assurance accuracy, improved checking efficiency according to the present invention.
Under the situation that does not break away from the spirit and scope of the present invention that are defined by the claims, those of ordinary skills can make further modification and application to the present invention.
Claims (9)
1. safety check door; Comprise drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem and control analysis subsystem, this three sub-systems is installed in the inspection door housing jointly, it is characterized in that; Said safety check door also is provided with spacer assembly; Said spacer assembly is used to make drugs/explosive detection subsystem and special nucleus material/radioactive material detection subsystem to isolate each other, thereby work alone without interfering with each other
Wherein, said spacer assembly comprises wave filter, decoupling device and the photoisolator on signal wire, power lead and the ground wire that is arranged on special nucleus material/radioactive material detection subsystem and/or drugs/explosive detection subsystem.
2. safety check door according to claim 1, wherein, said spacer assembly comprises the shielding part of being processed by shielding material, said shielding part is arranged on the ray detector and prime amplifier in special nucleus material/radioactive material detection subsystem.
3. safety check door according to claim 1 further comprises collimating apparatus, and said collimating apparatus is installed on the ray detector in special nucleus material/radioactive material detection subsystem, the investigative range of regulating ray detector.
4. safety check door according to claim 3 wherein, staggers each other in the position of the said ray detector of sense channel both sides, but on the short transverse of sense channel, keeps a certain amount of overlapping.
5. safety check door according to claim 1; Wherein, Under the control of said control analysis subsystem, at first start said special nucleus material/radioactive material detection subsystem and survey, start said drugs/explosive detection subsystem then and survey; And when inspection finishes, at first stop said drugs/explosive detection subsystem, stop said special nucleus material/radioactive material detection subsystem at last.
6. safety check door according to claim 1, wherein, two sidewalls of sense channel are provided with a plurality of air nozzles, and said a plurality of air nozzle layered arrangement are pointed to the center in the detection space at these layers place with a plurality of air nozzles in one deck.
7. safety check door according to claim 1, wherein, the roof of sense channel is provided with the air knife of blowing down, and said air knife comprises four big air knives and two little air knives, and four big air knives are arranged around two little air knives.
8. safety check door according to claim 1 further comprises pilot lamp that shows detected state and the user terminal that shows check result.
9. according to the described safety check door of arbitrary claim among the claim 1-8; Wherein, The signal wire of the signal wire of said drugs/explosive detection subsystem and said special nucleus material/radioactive material detection subsystem spatially is separated from each other; In the time must intersecting cabling, adopt the square crossing wiring.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101157866A CN101614682B (en) | 2008-06-27 | 2008-06-27 | Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance |
| PCT/CN2008/002056 WO2009155737A1 (en) | 2008-06-27 | 2008-12-24 | Safety check portal for checking a narcotic/explosive and a nuclear/radioactive substance |
| HK10106076.2A HK1140013A1 (en) | 2008-06-27 | 2010-06-18 | Safety check portal for checking a narcotic / explosive and a nuclear / radioactive substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101157866A CN101614682B (en) | 2008-06-27 | 2008-06-27 | Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106215776A Division CN102095610B (en) | 2008-06-27 | 2008-06-27 | Security inspection door for inspecting hard drugs/explosives and special nuclear matters/radioactive substances |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101614682A CN101614682A (en) | 2009-12-30 |
| CN101614682B true CN101614682B (en) | 2012-03-21 |
Family
ID=41443963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101157866A Active CN101614682B (en) | 2008-06-27 | 2008-06-27 | Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101614682B (en) |
| HK (1) | HK1140013A1 (en) |
| WO (1) | WO2009155737A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102095610B (en) * | 2008-06-27 | 2012-07-04 | 同方威视技术股份有限公司 | Security inspection door for inspecting hard drugs/explosives and special nuclear matters/radioactive substances |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5915268A (en) * | 1997-12-22 | 1999-06-22 | Sandia Corporation | Vertical flow chemical detection portal |
| US6708572B2 (en) * | 2000-12-22 | 2004-03-23 | General Electric Company | Portal trace detection systems for detection of imbedded particles |
| CN2591645Y (en) * | 2002-11-27 | 2003-12-10 | 中国原子能科学研究院 | Gamma radioactive safe testing device |
| CN201043956Y (en) * | 2006-12-30 | 2008-04-02 | 同方威视技术股份有限公司 | System capable of examining radiation imaging and monitoring radioactive matter at the same time |
-
2008
- 2008-06-27 CN CN2008101157866A patent/CN101614682B/en active Active
- 2008-12-24 WO PCT/CN2008/002056 patent/WO2009155737A1/en active Application Filing
-
2010
- 2010-06-18 HK HK10106076.2A patent/HK1140013A1/en not_active IP Right Cessation
Non-Patent Citations (1)
| Title |
|---|
| 王小兵等.《特殊核材料及放射性物质门式监测***》.《核电子学与探测技术》.2007,第27卷(第4期),634-637. * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009155737A1 (en) | 2009-12-30 |
| HK1140013A1 (en) | 2010-09-30 |
| CN101614682A (en) | 2009-12-30 |
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