CN102095611B - Pedestrian safety inspection door for detecting drug, explosive substance and metal - Google Patents

Pedestrian safety inspection door for detecting drug, explosive substance and metal Download PDF

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Publication number
CN102095611B
CN102095611B CN 201010621586 CN201010621586A CN102095611B CN 102095611 B CN102095611 B CN 102095611B CN 201010621586 CN201010621586 CN 201010621586 CN 201010621586 A CN201010621586 A CN 201010621586A CN 102095611 B CN102095611 B CN 102095611B
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detection subsystem
metal
drug
exploder
metal detection
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CN102095611A (en
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***
陈志强
李元景
林津
张金宇
彭华
张清军
宋李卫
张仲夏
张阳天
殷晓体
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Nuctech Co Ltd
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Nuctech Co Ltd
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Abstract

The invention discloses a pedestrian safety inspection door for detecting drug, explosive substance and metal, comprising a metal detection subsystem and a drug/ explosive substance detection subsystem, wherein the metal detection subsystem is connected to the drug/ explosive substance detection subsystem in series; the safety inspection door is provided with an isolation device; and the isolation device causes the metal detection subsystem and the drug/ explosive substance detection subsystem to be mutually isolated without interference. Two side walls of the inspection path of the drug/ explosive substance detection subsystem are provided with a plurality of nozzle arrangement layers, wherein each nozzle arrangement layer comprises a plurality of nozzles, and a plurality of nozzles on each nozzle arrangement layer all point to the center of the nozzle arrangement layer on which the nozzles are arranged. According to the invention, the metal detection subsystem and the drug/ explosive substance detection subsystem are combined for the first time to form a novel safety inspection door, and metal hazardous articles and drug/ explosive substances can be simultaneously inspected.

Description

Detect the pedestrian safety check door of drugs, explosive and metal
The application is that application number is 200810115773.9 the Chinese invention patent application (applying date: on June 27th, 2008; Invention and created name: the dividing an application pedestrian safety check door that detects drugs, explosive and metal).
Technical field
The present invention relates to a kind of safety check door, relate in particular to a kind of safety check door that can check simultaneously metal dangerous material and drug/exploder.
Background technology
Since " 911 " event, anti-terrorism becomes the common topic of global range.Terrorist incident all occured in the 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 consisted of huge threat.But the popular safety door for pedestrian's inspection generally can only be surveyed magnetic metal in the market, and is helpless to non-magnetic object.So to explosive and drugs, common safety door None-identified, this is undoubtedly a great leak concerning safety inspection.
Along with the development of drugs, explosive detection (IMS) technology, the suspicious detection of particulates such as the drugs that the pedestrian is carried, explosive becomes possibility.Recent years, external expert has carried out a lot of researchs to gate-type pedestrian's inspection technology of application IMS technology, and has applied for multinomial patent.As: EP1286151A1, US5915268A1, US6073499A1 and US2001049926A1 etc.In these patents, for the ease of collecting air-flow, the structure of multiple door has been proposed; In order to improve collection efficiency, some propositions concentrated thought (such as US6073499A1 etc.); In order to blow off carrying suspicious particulate in the human body clothing, blow checked pedestrian (such as US2001049926A1) by what begin with continuous flow, blow and beat clothing to the shower nozzle that adds again the spray gases at high pressure, air-flow and the jet direction of shower nozzle of blowing, or upward, or, want to have use up various ways (such as EP1286151A1, US5915268A1 and US6073499A1) downwards.
Detecting connection metal, patent CN1834690 has proposed a kind of through type metal detecting system, has improved by two two receipts formula antennas and corresponding circuit, software etc. and has detected the inhomogeneous defective of Distribution of Magnetic Field, has improved the ability of distinguishing metal object.Patent CN1802675A (WO2004/097456) has proposed a kind of metal detector with portable structure, by heavily loaded duty cycle and pulse working mode are set, makes it can utilize battery or AC power operation the long period.
But for various reasons, not yet find to detect simultaneously in the market the device of drug/exploder and metal.
Summary of the invention
Therefore, the present invention aims to provide a kind of safety inspection device that can check simultaneously metal dangerous material and drug/exploder.
The invention provides a kind of pedestrian safety check door that detects drugs, explosive and metal, comprise metal detection subsystem and drug/exploder detection subsystem, described metal detection subsystem in series is installed on the described drug/exploder detection subsystem, wherein, described safety check door is provided with spacer assembly, and described spacer assembly makes between described metal detection subsystem and the described drug/exploder detection subsystem mutually to be isolated, do not interfere with each other; Be provided with a plurality of nozzle placement layers on two sidewalls of the inspection passage of described drug/exploder detection subsystem, each nozzle placement layer comprises a plurality of nozzles, and a plurality of nozzles on described each nozzle placement layer point to the center of the nozzle placement layer at its place.
The present invention combines the installation check door that forms a kind of novelty with metal detection subsystem and drug/exploder detection subsystem first, thereby can check simultaneously metal dangerous material and drug/exploder.In addition, the present invention also is provided with and makes between metal detection subsystem and the drug/exploder detection subsystem mutually isolation, non-interfering spacer assembly, thereby has improved the reliability and the accuracy that detect.
Description of drawings
Fig. 1 is the one-piece construction stereographic map with safety check door of metal detection subsystem and drug/exploder detection subsystem of the present invention;
Fig. 2 is the cut-open view of the drug/exploder detection subsystem of safety check door of the present invention;
Fig. 3 is half stereographic map of the drug/exploder detection subsystem of safety check door of the present invention;
Fig. 4 is the partial enlarged view of nozzle placement layer A;
Fig. 5 is along the partial enlarged view of F to the air knife of watching;
Fig. 6 is the vertical view with safety check door of metal detection subsystem and drug/exploder detection subsystem of the present invention.
Embodiment
Fig. 1 shows the one-piece construction stereographic map with safety check door of metal detection subsystem and drug/exploder detection subsystem of the present invention.Fig. 6 shows the vertical view with safety check door of metal detection subsystem and drug/exploder detection subsystem of the present invention.
As shown in Figure 1, safety check door comprises metal detection subsystem 31 and drug/exploder detection subsystem 30, wherein drug/exploder detection subsystem 30 in series is installed on the entrance of metal detection subsystem 31, thereby forms a complete safety check door.Certainly, drug/exploder detection subsystem 30 also in series is installed in the outlet of metal detection subsystem 31.
As shown in Figure 1, be provided with pilot lamp 25 on the top of the porch of metal detection subsystem 31, this pilot lamp 25 is used to indicate and is examined pedestrian's several states of living in: in the checking (amber light); Idle (green light); Report to the police by (red light).
As shown in Figure 1, be provided with display as user terminal at the outside surface of drug/exploder detection subsystem 30, be used for showing testing result.
As shown in Figure 1, the metal detection subsystem 31 among the present invention is detection systems of surveying metal material by emitting electromagnetic wave, and it can adopt any applicable in prior art metal detecting system.Therefore this paper explanation of omitting the concrete structure of metal detection subsystem 31.
Because metal detection subsystem 31 adjoins each other with drug/exploder detection subsystem 30 and is in the same place, so many metal parts (such as metal shell, metal pipe line etc.) in the drug/exploder detection subsystem 30, can cause interference to metal detection subsystem 31, have a strong impact on the result of detection of metal detection subsystem 31.Particularly, when 31 work of metal detection subsystem, the electromagnetic wave of its emission will inevitably be diffused on the above-mentioned metal parts of drug/exploder detection subsystem 30, then turns back in the metal detection subsystem 31, so just causes metal detection subsystem 31 wrong report to occur.
And, owing to also having many Electromagnetic Interference source (such as compressor, blower fan, solenoid valve etc.) in the drug/exploder detection subsystem 30, therefore the electromagnetic wave that goes out of these Electromagnetic Interference source emissions can enter in the metal detection subsystem 31 equally, metal detection subsystem 31 is produced disturb.
Disturb for fear of 30 pairs of metal detection subsystems of drug/exploder detection subsystem 31, such as Fig. 1 and shown in Figure 6, outer circumferential side at metal detection subsystem 31 is provided with absorbing material 21 (corresponding to a kind of spacer assembly among the present invention), this absorbing material 21 has absorption metal detection subsystem 31 electromagnetic wave and the electromagnetic wave that produces or echoes emission, that propagate into the perimeter outside the metal detection zone, to weaken and to prevent that the extra-regional electromagnetic wave of metal detection or echo from entering in the metal detection zone.Particularly, this absorbing material 21 can absorb by the electromagnetic wave of metal detection zone interface and with it and change into heat energy, thereby minimizing external electromagnetic ripple or echo are on the impact of metal detection subsystem 31.
On the other hand, because the various signal wires of metal detection subsystem 31 and drug/exploder detection subsystem 30 all must be connected to overhead control cabinet 14, therefore be easy to occur signal cross-talk between two sub-systems.
Signal cross-talk appears between two sub-systems, as shown in Figure 6, the controller 22 of metal detection subsystem 31 links to each other with signal isolator 10 (corresponding to the another kind of spacer assembly among the present invention) by signal wire 20 first, and then signal isolator 10 communicates by the computing machine 13 in signal wire 12 and the overhead control cabinet 14.Particularly, the signal isolator in the present embodiment 10 is arranged on signal wire, the wave filter on the power and ground, decoupling device and the photoisolator etc. of metal detection subsystem 31.
For the mutually mutual interference of the signal wire that further prevents metal detection subsystem 31 and drug/exploder detection subsystem 30, the signal wire of two sub-systems should separate cabling as far as possible, namely spatially should separate as far as possible.When signal wire intersects, also to reduce mutually by the mode of right-angled intersection and disturb.
Fig. 2 is the cut-open view of the drug/exploder detection subsystem of safety check door of the present invention.Fig. 3 is half stereographic map of the drug/exploder detection subsystem of safety check door of the present invention.Fig. 4 is the partial enlarged view of nozzle placement layer A.
As shown in Figures 2 and 3, be provided with a plurality of nozzle placement layers at two sidewalls of the inspection passage of drug/exploder detection subsystem 30, be provided with altogether in the present embodiment five nozzle placement layers, be respectively A layer, B layer, C layer, D layer and E layer.
Shown in 4, nozzle placement layer A comprises six nozzles 8, and six nozzles 8 on the nozzle placement layer A all point to the center O of the nozzle placement layer A at its place.The benefit of this layout is the air-flow of a plurality of nozzles 8 to be collected in a point, strengthens the ability of the suspicious particulate that carries in the piping and druming clothing.
Fig. 5 is along the partial enlarged view of F to the air knife of watching.Such as Fig. 2 and shown in Figure 5, be provided with vertical air knife 6 towards the blowing down air on the roof of the inspection passage of drug/exploder detection subsystem 30, in the present embodiment, air knife 6 comprises four large air knives and two little air knives, four large air knives form a circle, and two little air knives are centered on by four large air knives.
The below describes principle of work of the present invention in detail.
1. the principle of work of drug/exploder detection subsystem 30
As shown in Figure 2, air compressor 1 provides gases at high pressure, and pressure 0.2~0.8MPa is preferably about 0.5MPa.Gases at high pressure are provided for air nozzle 8 by air nozzle draft tube 5, each air nozzle 8 is by a solenoid valve 9 its jet/closed conditions of control.System's control computing machine 13 is controlled the sequential that the parts such as solenoid valves 9, air compressor 1, carrier gas air-flow blower fan 2 are opened and closed by overhead control cabinet 14 and gas circuit control signal wire 29.The air that air compressor 1 and carrier gas air-flow blower fan 2 suck is from air intake opening 3.
The air nozzle 8 general simultaneously ON/OFF of same layer; The air nozzle 8 timesharing ON/OFF of different layers generally open or close from top to bottom successively, wait every one deck air nozzle 8 all to spray once after, again circulation from top to bottom is until jet process finishes; Its switching sequence is sent by overhead control cabinet 14, realizes by the solenoid valve 9 of controlling each air nozzle 8 back.
When the air nozzle 8 of the A of the superiors was started working for the 1st time, carrier gas air-flow blower fan 2 was also started working, and gave air knife 6 air feed as shown in Figure 5, provided 4 large air knives 6 and 2 little air knives 6 among the figure.Air-flow blows out from the air knife inflatable mouth 7 of air knife 6, forms the carrier gas air-flow, and its flow direction is shown in carrier gas air current flow direction 28.The effect of carrier gas air-flow is to drive air entry 19 blown down the suspicious particulate that comes by air nozzle 8.
The carrier gas air-flow of the test space 27 is by suction fan 16 inhale mouths 19.The air-flow that contains suspicious particulate that enters air entry 19 is during by precondenser 18, and suspicious particulate is adsorbed in the precondenser 18, and the air-flow after the filtration is discharged to through suction fan 16, gas outlet 15, exhausr port 11 among the atmosphere of outside.In the process of desorption, precondenser 18 disengages the suspicious Solution For Small Particles that is adsorbed onto come, and is sucked and analyzes by drugs, explosive detection device (IMS) 17, and waste gas is discharged among the atmosphere of outside through gas outlet 15, exhausr port 11.
Cross data circuit by the data communication device of drugs, explosive detection device (IMS) 17 detections and deliver to overhead control cabinet 14, send into system's control computing machine 13 again and analyze, the result shows at user terminal 24 and pilot lamp 25.
When beginning to check, pilot lamp 25 shows idle (green light is bright), and the assigned address station that checked pedestrian enters the test space 28 is good; That system begins is jet, blow, collect gas, then delivers to drugs, explosive detection device (IMS) 17 is surveyed, and finally provides analysis result by system's control computing machine 13.If find the vestige of Poison, explosive, then give the alarm simultaneously pilot lamp 25 warnings (blinking red lamp); If do not find suspicious item, then these drugs, explosives detection finish, and whether pilot lamp 25 which kind of state, also will continue to wait for the analysis result of next step metal detection subsystem.To the last the result out after, if there is not suspicious item, pilot lamp 25 just shows idle (green light is bright), waits for entering of next tested person.
2. metal detection subsystem 31 principle of work
When drugs, explosives detection subsystem 30 stop jet after, tested pedestrian can move on by metal inspection subsystem 23.The signal that detects will pass to signal isolator 10 by controller 22, the signal wire 20 of metal inspection subsystem 31, then through signal isolator 10 to overhead control cabinet signal wire 12, overhead control cabinet 14, communicate by letter with system control computing machine 13.Behind process system control computing machine 13 communications analysis,, report to the police immediately simultaneously pilot lamp 25 warnings (blinking red lamp) if find suspicious item.If data are normal, also need wait for the data results of drug/exploder detection subsystem 30, just can draw comprehensive result, whether report to the police with decision systems.
After 30 samplings of drug/exploder detection subsystem finished, drugs, explosive detection device (IMS) 17 were analyzed data and are still needed several seconds, but at this moment metal detection subsystem 23 synchronizing detection analyses.Synthesis result to the last out after, if there is not suspicious item, pilot lamp 25 just shows idle (green light is bright), waits for entering of next tested person.
In a word, survey subsystem for two and combine, can finish simultaneously the tasks such as drugs, explosive and metal that check that the pedestrian carries, improved checking efficiency.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can change these embodiment, scope of the present invention is limited by claims and equivalent thereof.

Claims (8)

1. a pedestrian safety check door that detects drugs, explosive and metal comprises metal detection subsystem and drug/exploder detection subsystem, and described metal detection subsystem in series is installed on the described drug/exploder detection subsystem, it is characterized in that:
Described safety check door is provided with spacer assembly, and described spacer assembly makes between described metal detection subsystem and the described drug/exploder detection subsystem mutually to be isolated, do not interfere with each other;
Be provided with a plurality of nozzle placement layers on two sidewalls of the inspection passage of described drug/exploder detection subsystem, each nozzle placement layer comprises a plurality of nozzles, and a plurality of nozzles on described each nozzle placement layer point to the center of the nozzle placement layer at its place.
2. the pedestrian safety check door of detection drugs according to claim 1, explosive and metal, wherein said spacer assembly comprises the absorbing material that is installed in the described metal detection subsystem outside, described absorbing material absorbs described metal detection subsystem electromagnetic wave and the electromagnetic wave that produces or echo emission, that propagate into the perimeter outside the metal detection zone, to weaken and to prevent that the extra-regional electromagnetic wave of metal detection or echo from entering in the metal detection zone.
3. the pedestrian safety check door of detection drugs according to claim 1, explosive and metal, wherein said spacer assembly comprises signal isolator, described signal isolator is isolated signal wire, the power and ground of signal wire, power and ground and the described drug/exploder detection subsystem of described metal detection subsystem mutually, in order to prevent the signal cross-talk between described metal detection subsystem and the described drug/exploder detection subsystem.
4. the pedestrian safety check door of detection drugs according to claim 1, explosive and metal, wherein
Described spacer assembly comprises the absorbing material that is installed in the described metal detection subsystem outside, described absorbing material absorbs described metal detection subsystem electromagnetic wave and the electromagnetic wave that produces or echo emission, that propagate into the perimeter outside the metal detection zone, to weaken and to prevent that the extra-regional electromagnetic wave of metal detection or echo from entering in the metal detection zone;
Described spacer assembly also comprises signal isolator, described signal isolator is isolated signal wire, the power and ground of signal wire, power and ground and the described drug/exploder detection subsystem of described metal detection subsystem mutually, in order to prevent the signal cross-talk between described metal detection subsystem and the described drug/exploder detection subsystem.
5. according to claim 3 or the pedestrian safety check door of 4 described detection drugs, explosive and metal, wherein said signal isolator is arranged on signal wire, the wave filter on the power and ground, decoupling device and the photoisolator of described metal detection subsystem or described drug/exploder detection subsystem.
6. the pedestrian safety check door of detection drugs according to claim 5, explosive and metal, the signal wire of the signal wire of wherein said metal detection subsystem and described drug/exploder detection subsystem spatially is separated from each other; At the point that must intersect, adopt right-angled intersection to cross collimation method.
7. the pedestrian safety check door of detection drugs according to claim 1, explosive and metal, wherein said safety check door also comprise the display lamp that shows the inspection state.
8. the pedestrian safety check door of detection drugs according to claim 1, explosive and metal, wherein said safety check door also comprises the terminal display that shows check result.
CN 201010621586 2008-06-27 2008-06-27 Pedestrian safety inspection door for detecting drug, explosive substance and metal Active CN102095611B (en)

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Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
CN105334276A (en) * 2015-12-08 2016-02-17 北京至感传感器技术研究院有限公司 Anti-terrorist safety inspection method and equipment for explosives
CN106680043B (en) * 2016-11-21 2020-07-31 北京蓝色星语科技有限公司 Disturbance sampling device and method for biochemical harmful factors
CN107861172A (en) * 2017-11-16 2018-03-30 南京航空航天大学 Detect metal and the detector gate and method of inflammable air-liquid simultaneously
CN113747775A (en) * 2020-05-29 2021-12-03 同方威视技术股份有限公司 Radio frequency identification device for preventing electromagnetic interference between security inspection channels and method for manufacturing shielding plate

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