WO2009155737A1 - Safety check portal for checking a narcotic/explosive and a nuclear/radioactive substance - Google Patents
Safety check portal for checking a narcotic/explosive and a nuclear/radioactive substance Download PDFInfo
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- WO2009155737A1 WO2009155737A1 PCT/CN2008/002056 CN2008002056W WO2009155737A1 WO 2009155737 A1 WO2009155737 A1 WO 2009155737A1 CN 2008002056 W CN2008002056 W CN 2008002056W WO 2009155737 A1 WO2009155737 A1 WO 2009155737A1
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- detection
- subsystem
- inspection door
- drug
- security inspection
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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
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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
- 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
Definitions
- the present invention relates to a security inspection door, and more particularly to a security inspection door capable of simultaneously detecting drugs/explosives and special nuclear materials/radioactive materials.
- Patent US2006/028494 A1 also proposes a radioactive safety detection gate that uses multiple detectors and collimator arrays to achieve simultaneous detection of gamma and eta.
- the present invention is to solve the above problems in the prior art, and the interference between the drug/explosive substance detecting subsystem and the special nuclear material/radioactive substance detecting subsystem installed together is well prevented by using the isolation measure. Therefore, the inspection efficiency is improved while ensuring the reliability and accuracy of the inspection.
- a security inspection door comprising a drug/explosives detection subsystem and a special nuclear/radioactive substance detection subsystem and a control analysis subsystem, the three subsystems being jointly installed in the inspection door housing
- the safety inspection door is further provided with an isolating device for isolating the drug/explosive substance detecting subsystem and the special nuclear material/radioactive substance detecting subsystem from each other so as to work independently without interference.
- the isolation device includes a filter, a decoupler, and an opto-isolator disposed on a signal line, a power line, and a ground line of a special nuclear/radioactive substance detection subsystem and/or a drug/explosive substance detection subsystem.
- the isolation device may further comprise a shield made of a shielding material disposed on the radiation detector and the preamplifier in the special nuclear/radioactivity detection subsystem.
- the security inspection door may further comprise a collimator mounted to the radiation detector in the special nuclear matter/radioactivity detection subsystem to adjust the detection range of the radiation detector.
- FIG. 1 is a perspective view showing the overall configuration of a security inspection door according to the present invention.
- Figure 2 is a cross-sectional view of the security inspection door according to the present invention as shown in Figure 1, schematically showing the internal configuration of the security inspection door;
- Figure 3 is a partial perspective view of a security inspection door in accordance with the present invention, specifically showing the arrangement of the air nozzle of the drug/explosive detection subsystem;
- Figure 4 specifically shows the orientation of a plurality of air nozzles on the same layer
- Figure 5 shows the arrangement of the air knife on the top wall of the security inspection door and the collimator and the radiation detector on the side according to the invention.
- Figure 1 shows the overall construction of a security inspection door in accordance with the present invention.
- an outer casing 3, an exhaust port 14, a user terminal 24, an indicator lamp 25, and an air nozzle 11 are provided on the outer casing of the inspection door 29 according to the present invention.
- the air knife 10 (shown in FIG. 5) is also disposed on the top wall of the detecting passage of the inspection door 29.
- the indicator light 25 is used to indicate the status of the pedestrian being inspected: In progress (yellow light) / idle (green light) I Alarm (red light).
- a user terminal 24 e.g., an LCD display
- a user terminal 24 is used to display the inspection results in detail.
- FIG. 2 shows in detail the internal construction of a security inspection door in accordance with the present invention.
- the drug/explosives detection subsystem and the special nuclear/radioactive detection subsystem and the control analysis subsystem are installed in the enclosure of the security inspection door.
- the drug/explosives detection subsystem includes: an air inlet 3, an air compressor 1, a carrier gas flow fan 2, a wind knife intake pipe 5, a jet air intake pipe 6, a solenoid valve 7, an air knife blowing port 9, an air knife 10,
- IMS drug/explosive detector
- the special nuclear material/radioactive substance detection subsystem includes: a radiation detector 8, a collimator 4, a radiation detector signal line 12, a radiation detection subsystem control box 18.
- the control analysis subsystem includes a system control computer 16 and a general control cabinet 17.
- control analysis subsystem is installed inside the casing of the inspection door in this embodiment, it may be disposed outside the casing according to actual needs.
- the present invention provides a signal isolator 19 to which the radiation detection control box 18 of the special nuclear material/radioactivity detection subsystem is connected via a signal isolator 19 (an isolation device).
- the signal isolator 19 in this embodiment is a filter, a decoupler, an opto-isolator or the like provided on a signal line, a power line, and a ground line of a special nuclear material/radioactive substance detecting subsystem. It should be noted that although the signal isolator 19 is only used in the special nuclear/radioactive substance detection subsystem in Figure 2, this is not limiting and can also be on the drug/explosive detection subsystem.
- the signal isolator 19 is applied to the signal isolator 19 or both. That is to say, filters, decouplers, opto-isolators, etc. can be placed on the signal lines, power lines and ground lines of the drug/explosive detection subsystem, or the signal lines of the two detection subsystems can be simultaneously Filters, decouplers, and opto-isolators are provided on the power and ground lines.
- a shield (another isolation device) is provided on the radiation detector and the preamplifier in the special nuclear/radioactive substance detection subsystem, and the shielding member is made of a material capable of shielding the space radiation. Made of materials.
- the signal lines of the drug/explosives detection subsystem and the signal lines of the special nuclear/radioactive substance detection subsystem should be arranged as far apart as possible, that is, spatially separated from each other, and where cross-tracking is necessary, vertical cross-wiring is used. To minimize crosstalk.
- the collimator 4 is disposed outside the radiation detector 8.
- the mouth of the collimator 4 faces the detection space 28, and its wall thickness is greater than 5 to 10 mm, and the material is generally lead. Its purpose is to adjust the detection range of the radiation detector and reduce the interference of external radiation on the inspection results of the inspected pedestrian. Can improve the reliability and accuracy of the inspection.
- a set of radiation detectors 8 is used on each side of the detection space 28.
- the positions of the radiation detectors 8 on the two sides can be shifted from each other, but the detection areas should be slightly overlapped and cannot be completely separated to ensure the reliability of the inspection results.
- a plurality of air nozzles 11 are disposed on both side walls of the detecting passage. As shown in Fig. 3, a plurality of air nozzles 11 are arranged in layers, generally not less than 4 layers (5 layers in Fig. 3), and each side has not less than 2 columns (3 columns in Fig. 3). As shown in Fig. 4, the air nozzle 11 of each layer is directed toward the center of the detection space in which the layer is located to enhance the ability to blow suspect particles carried in the laundry. The horizontal direction of the jet stream is indicated by the direction of the jet stream 27 .
- the air nozzles 11 of the same layer are generally turned on/off at the same time, and the air nozzles 11 of different layers are turned on/off in a time-sharing manner, generally being turned on or off from top to bottom, and after each layer of the air nozzles 11 is sprayed once, and then from the top.
- the lower cycle, until the end of the jetting process, its switching timing is issued by the main control cabinet 17, by controlling the solenoid valve 7 behind each of the air nozzles 11.
- the air knife 10 disposed to blow downward on the top wall of the detecting passage includes four large air blades and two small air blades, and four large air blades surround two small Wind knife arrangement.
- this is merely exemplary and other arrangements may be employed.
- the air compressor 1 supplies a high pressure gas at a pressure of 0.2 to 0.8 MPa, preferably about 0.5 MPa.
- the air nozzle 11 is supplied with high-pressure gas through the air nozzle intake pipe 6, and each of the air nozzles 11 controls its air-jet/close state by an electromagnetic width.
- the system control computer 16 controls the timing of opening and closing of the solenoid valve 7, the air compressor 1, the carrier gas flow fan 2, and the like through the main control cabinet 17 and the pneumatic control signal line 30.
- the air taken in by the air compressor 1 and the carrier gas flow fan 2 comes from the intake port 3.
- the carrier gas flow fan 2 is also started to operate, and the air knife 10 shown in Fig. 5 is supplied with air.
- the air flow is blown from the air knife blowing port 9 of the air knife 10 to form a carrier gas flow, and the flow thereof The direction is as indicated by the carrier gas flow direction 26.
- the role of the carrier gas stream is to drive the suspect particles blown down by the air nozzle 11 to the suction port 23.
- the carrier gas flow in the detection space 28 is sucked into the intake port 23 by the suction fan 21.
- the suction fan 21 When the airflow containing the suspected particles entering the intake port 23 passes through the precondenser 22, the suspected particles are adsorbed into the precondenser 22, and the filtered airflow passes through the intake fan 21, the exhaust pipe 13, and the exhaust port 14 Go to the outside atmosphere.
- the pre-condenser 22 releases the adsorbed suspicious particles, is inhaled by the drug/explosive detector (IMS) 20 for analysis, and the exhaust gas is discharged to the outside through the exhaust pipe 13 and the exhaust port 14. In the atmosphere.
- IMS drug/explosive detector
- Data detected by the Drug/Explosives Detector (IMS) 20 is sent via data lines to the main control cabinet 17, and then sent to the system control computer 16 for analysis, and the results are displayed on the user terminal 24 and the indicator light 25.
- IMS Drug/Explosives Detector
- the indicator light 25 shows idle (green light is on), and the inspected pedestrian enters the designated position of the detection space 28 to stand; the system starts to jet, blow, collect gas, and then sends it to the drug, explosive detector (IMS). 20 is detected, and finally the analysis result is given by the system control computer 16. If there are traces of drugs or explosives, an alarm is issued, and the indicator light 25 is alarmed (red light flashes); if no object is found, the inspection ends, the indicator light 25 is idle (green light is on), waiting for the next one Entry of the inspected person.
- IMS drug detector
- the inspected pedestrian enters the designated position of the detection space 28, and the system starts the work before the drug/explosive detection subsystem under the control of the control analysis subsystem, and after the drug/explosive detection subsystem ends a measurement work, the book This test will be completed again.
- the gamma and gamma rays are detected by the ray detector 8, and the detection signals are sent to the ray detecting subsystem control box 18. Since the radiation detection subsystem is susceptible to interference, in order to prevent interference signals from the self-contained drug/explosive detection subsystem, the signal, control line passes through the signal isolator 19, and the signal isolator to the main control cabinet signal line 15 and the overall control cabinet 17 Interconnect, the probe data is ultimately sent to the system control computer 16 for analysis and processing, and the results are sent to the user terminal 24 for display. The result displayed on indicator light 25 is the final result after combining the data from the two detection subsystems.
- the two detection subsystems are combined and reliably operated, and the task of checking the drugs/explosives and special nuclear/radioactive materials carried by pedestrians can be completed at the same time, and the accuracy is improved. Check efficiency.
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Abstract
A safety check portal for checking a narcotic/explosive and a nuclear/radioactive substance comprises a narcotic/explosive checking subsystem and a nuclear/radioactive substance checking subsystem as well as a control and analysis subsystem, the three subsystems are mounted in the housing of the check portal (29) jointly. Besides, the safety check portal (29) further comprises an isolation apparatus (19), which is used for isolating the narcotic/explosive checking subsystem from the nuclear/radioactive substance checking subsystem, thereby allowing them working independently, without interfering with each other.
Description
技术领域 Technical field
本发明涉及一种安全检査门, 具体地讲, 涉及一种能够同时检测毒品 /爆炸物和 特殊核物质 /放射性物的安全检査门。 背景技术 The present invention relates to a security inspection door, and more particularly to a security inspection door capable of simultaneously detecting drugs/explosives and special nuclear materials/radioactive materials. Background technique
自" 911"事件以来, 反恐成为全球范围的共同话题。 美国、 俄罗斯、 英国、 埃及、 西班牙、 印尼、 印度等国均发生过恐怖事件, 美国为此还发动了二场战争。 恐怖分子 利用"人弹"袭击成为一种重要的破坏方式, 对老百姓的安全生活和社会的稳定构成了 巨大的威胁。但是目前市场上流行的针对行人检査的安全门, 一般只能探测磁性金属, 对非磁性物体无能为力。 而爆炸物、 毒品以及可以制作脏弹的放射性物有些是非磁性 物质, 普通安全门无法识别, 这对安全检査来说, 无疑是一个重大漏洞。 Since the "911" incident, anti-terrorism has become a common topic on a global scale. The United States, Russia, the United Kingdom, Egypt, Spain, Indonesia, India and other countries have had terrorist incidents. The United States has also launched two wars. The use of "human bomb" attacks by terrorists has become an important form of destruction, posing a huge threat to the safe life of the people and the stability of society. However, the safety gates currently on the market for pedestrian inspection generally only detect magnetic metals and are incapable of acting on non-magnetic objects. Explosives, drugs, and radioactive materials that can make dirty bombs are some non-magnetic substances, and ordinary security doors are unrecognizable. This is a major loophole for security inspections.
随着毒品 /爆炸物 (IMS ) 技术的发展, 对行人携带的毒品、 爆炸物等可疑微粒检 测成为可能。 最近几年, 国外专家对应用 IMS技术的门式行人检査技术进行了很多研 究, 并申请了多项专利。 如: EP1286151A1 , US5915268A1 , US6073499A1及 With the development of drug/explosive (IMS) technology, it has become possible to detect suspected particles such as drugs and explosives carried by pedestrians. In recent years, foreign experts have done a lot of research on the door-type pedestrian inspection technology using IMS technology, and applied for a number of patents. Such as: EP1286151A1, US5915268A1, US6073499A1 and
US2001049926A1等等。 在这些专利中, 为了便于收集气流, 提出了多种门的结构; 为了提高收集效率, 有的提出了预浓缩思想 (如 US6073499A1等); 为了把人体衣物 中携带可疑微粒吹落下来, 由开始的用连续气流吹被检査的行人 (如 US2001049926A1 and the like. In these patents, in order to facilitate the collection of airflow, various door structures have been proposed; in order to improve the collection efficiency, some pre-concentration ideas have been proposed (such as US6073499A1, etc.); in order to blow suspicious particles in human clothes, start from Pedestrians who are inspected with continuous airflow (eg
US2001049926A1 ), 发展到又加入喷高压气体的喷头来吹打衣物, 吹气的气流和喷头 喷气的方向, 或向上方, 或向下方,想尽了各种办法(如 EP1286151A1 , US5915268A1 和 US6073499A1 )。 US2001049926A1), developed to add a high-pressure gas jet nozzle to blow clothes, blow air flow and nozzle jet direction, or upward, or downward, have tried various methods (such as EP1286151A1, US5915268A1 and US6073499A1).
在检测特殊核物质和放射性物方面,专利 CN02289591.4提出了一种门式 γ放射性 安全检测装置, 通过对测量 γ放射性的 Nal(Tl)闪烁体采取了定向屏蔽, 使得只有闪烁 体一侧某一立体角范围内的 γ放射性才能被检测到; 并将多个 γ探头配置在做成门框 状的两侧门柱中, 提高了对放射性物质的探测效率。专利 US2006/028494 A1也提出了 一种放射性安全检测门, 应用多个探测器和准直器阵列, 实现了对 γ和 η同时探测的 功能。 In the detection of special nuclear materials and radioactive materials, the patent CN02289591.4 proposes a gate type gamma radioactive safety detection device, which adopts directional shielding for the Nal(Tl) scintillator measuring gamma radioactivity, so that only one side of the scintillator is The gamma radioactivity in a solid angle range can be detected; and a plurality of gamma probes are arranged in the door frame-like side door posts, thereby improving the detection efficiency of radioactive materials. Patent US2006/028494 A1 also proposes a radioactive safety detection gate that uses multiple detectors and collimator arrays to achieve simultaneous detection of gamma and eta.
但由于种种原因, 尤其是系统之间的干扰问题, 使得目前市场上尚未出现同时检 测毒品 /爆炸物质和特殊核物质 /放射性物的装置。
发明内容 However, due to various reasons, especially the interference between systems, there is no device on the market for simultaneous detection of drugs/explosive substances and special nuclear/radioactive materials. Summary of the invention
本发明正是为了解决现有技术中存在的上述问题,通过采用隔离措施很好地防止 了安装在一起的毒品 /爆炸物探测子系统和特殊核物质 /放射性物探测子系统之间的相 互干扰, 从而在保证检査可靠性和准确性的同时提高了检查效率。 The present invention is to solve the above problems in the prior art, and the interference between the drug/explosive substance detecting subsystem and the special nuclear material/radioactive substance detecting subsystem installed together is well prevented by using the isolation measure. Therefore, the inspection efficiency is improved while ensuring the reliability and accuracy of the inspection.
根据本发明, 提供了一种安全检査门, 包括毒品 /爆炸物探测子系统和特殊核物 质 /放射性物探测子系统以及控制分析子系统, 这三个子系统共同安装在检査门壳体 中, 其特征在于, 所述安全检查门还设置有隔离装置, 所述隔离装置用于使毒品 /爆炸 物探测子系统和特殊核物质 /放射性物探测子系统相互隔离, 从而互不干扰地独立工 作。 According to the present invention, there is provided a security inspection door comprising a drug/explosives detection subsystem and a special nuclear/radioactive substance detection subsystem and a control analysis subsystem, the three subsystems being jointly installed in the inspection door housing The safety inspection door is further provided with an isolating device for isolating the drug/explosive substance detecting subsystem and the special nuclear material/radioactive substance detecting subsystem from each other so as to work independently without interference. .
所述隔离装置包括设置在特殊核物质 /放射性物探测子系统和 /或毒品 /爆炸物探 测子系统的信号线、 电源线和地线上的滤波器、 去耦合器及光电隔离器等。 The isolation device includes a filter, a decoupler, and an opto-isolator disposed on a signal line, a power line, and a ground line of a special nuclear/radioactive substance detection subsystem and/or a drug/explosive substance detection subsystem.
所述隔离装置还可包括由屏蔽材料制成的屏蔽件,所述屏蔽件设置在特殊核物质 /放射性物探测子系统中的射线探测器和前置放大器上。 The isolation device may further comprise a shield made of a shielding material disposed on the radiation detector and the preamplifier in the special nuclear/radioactivity detection subsystem.
优选地, 所述安全检查门可进一步包括准直器, 所述准直器安装到特殊核物质 / 放射性物探测子系统中的射线探测器上, 来调节射线探测器的探测范围。 Preferably, the security inspection door may further comprise a collimator mounted to the radiation detector in the special nuclear matter/radioactivity detection subsystem to adjust the detection range of the radiation detector.
从下面对本发明实施例的详细描述中, 本发明的其它目标和优点将变得更加明 显。 附图说明 Other objects and advantages of the present invention will become more apparent from the detailed description of embodiments. DRAWINGS
图 1是示出根据本发明的安全检查门的总体构造的立体图; 1 is a perspective view showing the overall configuration of a security inspection door according to the present invention;
图 2是如图 1所示的根据本发明的安全检査门的剖视图,示意性示出了该安全检查 门的内部构造; Figure 2 is a cross-sectional view of the security inspection door according to the present invention as shown in Figure 1, schematically showing the internal configuration of the security inspection door;
图 3是根据本发明的安全检查门的局部立体图, 具体示出了毒品 /爆炸物探测子系 统的喷气嘴的布置; Figure 3 is a partial perspective view of a security inspection door in accordance with the present invention, specifically showing the arrangement of the air nozzle of the drug/explosive detection subsystem;
图 4具体示出了同一层上的多个喷气嘴的指向; Figure 4 specifically shows the orientation of a plurality of air nozzles on the same layer;
图 5示出了根据本发明的安全检查门的顶壁上的风刀的布置以及侧部的准直器和 射线探测器。 具体实施方式
图 1示出了根据本发明的安全检査门的总体构造。 如图 1所示, 根据本发明的检査 门 29的外壳上设有进气口 3、 排气口 14、 用户终端 24、 指示灯 25和喷气嘴 11。 另外, 虽 然图 1中没有示出,但是检查门 29的检测通道的顶壁上还设置有风刀 10(在图 5中示出)。 指示灯 25用于指示被检査行人所处的几种状态: 正在检査中 (黄灯) /空闲 (绿灯) I 报警 (红灯)。 用户终端 24 (例如, LCD显示器) 用于详细显示检查结果。 Figure 5 shows the arrangement of the air knife on the top wall of the security inspection door and the collimator and the radiation detector on the side according to the invention. detailed description Figure 1 shows the overall construction of a security inspection door in accordance with the present invention. As shown in Fig. 1, an outer casing 3, an exhaust port 14, a user terminal 24, an indicator lamp 25, and an air nozzle 11 are provided on the outer casing of the inspection door 29 according to the present invention. In addition, although not shown in FIG. 1, the air knife 10 (shown in FIG. 5) is also disposed on the top wall of the detecting passage of the inspection door 29. The indicator light 25 is used to indicate the status of the pedestrian being inspected: In progress (yellow light) / idle (green light) I Alarm (red light). A user terminal 24 (e.g., an LCD display) is used to display the inspection results in detail.
图 2详细示出了根据本发明的安全检查门的内部构造。 如图 2所示, 毒品 /爆炸物探 测子系统和特殊核物质 /放射性物探测子系统以及控制分析子系统都安装在安全检査 门的外壳中。 Figure 2 shows in detail the internal construction of a security inspection door in accordance with the present invention. As shown in Figure 2, the drug/explosives detection subsystem and the special nuclear/radioactive detection subsystem and the control analysis subsystem are installed in the enclosure of the security inspection door.
毒品 /爆炸物探测子系统包括: 进气口 3、 空气压缩机 1、 载气气流风机 2、 风刀进 气管 5、 喷气进气管 6、 电磁阀 7、 风刀吹气口 9、 风刀 10、 喷气嘴 11、 排气管 13、 排气 口 14、 毒品 /爆炸物探测器 (IMS ) 20、 吸气风机 21、 预凝器 22和吸气口 23。 The drug/explosives detection subsystem includes: an air inlet 3, an air compressor 1, a carrier gas flow fan 2, a wind knife intake pipe 5, a jet air intake pipe 6, a solenoid valve 7, an air knife blowing port 9, an air knife 10, The air nozzle 11, the exhaust pipe 13, the exhaust port 14, the drug/explosive detector (IMS) 20, the suction fan 21, the precondenser 22, and the suction port 23.
特殊核物质 /放射性物探测子系统包括: 射线探测器 8、 准直器 4、 射线探测器信号 线 12、 射线探测子系统控制盒 18。 The special nuclear material/radioactive substance detection subsystem includes: a radiation detector 8, a collimator 4, a radiation detector signal line 12, a radiation detection subsystem control box 18.
控制分析子系统包括系统控制计算机 16和总控制柜 17。 The control analysis subsystem includes a system control computer 16 and a general control cabinet 17.
需要指出的是, 虽然该实施例中控制分析子系统安装在检查门的外壳内部, 但是 根据实际需要, 其也可以设置在外壳的外部。 It should be noted that although the control analysis subsystem is installed inside the casing of the inspection door in this embodiment, it may be disposed outside the casing according to actual needs.
由于毒品 /爆炸物探测子系统中有许多电磁波干扰源 (如压缩机 1、 风机 2、 电磁 阀 7等), 所以会对特殊核物质 /放射性物探测子系统产生干扰, 影响其检测准确性和 可靠性。 Because there are many sources of electromagnetic interference in the drug/explosives detection subsystem (such as compressor 1, fan 2, solenoid valve 7, etc.), it will interfere with the special nuclear/radioactive detection subsystem, affecting its detection accuracy and reliability.
为了避免上述干扰的影响, 本发明设置了信号隔离器 19, 特殊核物质 /放射性物探 测子系统的射线探测控制盒 18经由信号隔离器 19 (一种隔离装置) 与总控制柜 17相 连。 具体地讲, 本实施例中的信号隔离器 19是设置在特殊核物质 /放射性物探测子系 统的信号线、 电源线和地线上的滤波器、 去耦合器及光电隔离器等。 需要指出的是, 虽然图 2中示出的是只在特殊核物质 /放射性物探测子系统中应用了信号隔离器 19,但 是这不是限制性的, 也可以在毒品 /爆炸物探测子系统上应用信号隔离器 19或者同时 在这两个探测子系统上应用信号隔离器 19。也就是说, 可以在毒品 /爆炸物探测子系统 的信号线、 电源线和地线上设置滤波器、 去耦合器及光电隔离器等, 或者可以同时在 这两个探测子系统的信号线、 电源线和地线上设置滤波器、去耦合器及光电隔离器等。 In order to avoid the effects of the above interference, the present invention provides a signal isolator 19 to which the radiation detection control box 18 of the special nuclear material/radioactivity detection subsystem is connected via a signal isolator 19 (an isolation device). Specifically, the signal isolator 19 in this embodiment is a filter, a decoupler, an opto-isolator or the like provided on a signal line, a power line, and a ground line of a special nuclear material/radioactive substance detecting subsystem. It should be noted that although the signal isolator 19 is only used in the special nuclear/radioactive substance detection subsystem in Figure 2, this is not limiting and can also be on the drug/explosive detection subsystem. The signal isolator 19 is applied to the signal isolator 19 or both. That is to say, filters, decouplers, opto-isolators, etc. can be placed on the signal lines, power lines and ground lines of the drug/explosive detection subsystem, or the signal lines of the two detection subsystems can be simultaneously Filters, decouplers, and opto-isolators are provided on the power and ground lines.
同时, 为了进一步降低干扰, 在特殊核物质 /放射性物探测子系统中的射线探测器 和前置放大器上设置了屏蔽件(另一种隔离装置), 该屏蔽件由能够屏蔽空间辐射的材
料制成。 At the same time, in order to further reduce the interference, a shield (another isolation device) is provided on the radiation detector and the preamplifier in the special nuclear/radioactive substance detection subsystem, and the shielding member is made of a material capable of shielding the space radiation. Made of materials.
此外,毒品 /爆炸物探测子系统的信号线和特殊核物质 /放射性物探测子系统的信号 线应尽量分开布置, 即在空间上相互分离, 在必须交叉走线的地方, 采用垂直交叉布 线法, 以最大限度地避免发生串扰。 In addition, the signal lines of the drug/explosives detection subsystem and the signal lines of the special nuclear/radioactive substance detection subsystem should be arranged as far apart as possible, that is, spatially separated from each other, and where cross-tracking is necessary, vertical cross-wiring is used. To minimize crosstalk.
另一方面, 从图 2和图 5中可以看出, 本实施例中, 在射线探测器 8的外面设置 了准直器 4。准直器 4的幵口面向检测空间 28,其壁厚大于 5〜10mm,材料一般为铅。 其目的是调节射线探测器的探测范围, 减少外部射线对被检行人的检查结果的干扰。 可以提高检查的可靠性和准确性。 On the other hand, as can be seen from Figs. 2 and 5, in the present embodiment, the collimator 4 is disposed outside the radiation detector 8. The mouth of the collimator 4 faces the detection space 28, and its wall thickness is greater than 5 to 10 mm, and the material is generally lead. Its purpose is to adjust the detection range of the radiation detector and reduce the interference of external radiation on the inspection results of the inspected pedestrian. Can improve the reliability and accuracy of the inspection.
如图 2所示, 为了减少成本, 检测空间 28的二侧各用一组射线探测器 8。 二侧的 射线探测器 8的位置可相互错开, 但其探测区域应稍有重叠, 不能完全分离, 以保证 检査结果的可靠性。 As shown in Fig. 2, in order to reduce the cost, a set of radiation detectors 8 is used on each side of the detection space 28. The positions of the radiation detectors 8 on the two sides can be shifted from each other, but the detection areas should be slightly overlapped and cannot be completely separated to ensure the reliability of the inspection results.
在检测通道的两个侧壁上设置有多个喷气嘴 11。 如图 3所示, 多个喷气嘴 11分层 布置, 一般不少于 4层(图 3中为 5层), 每个侧面不少于 2列(图 3中为 3列)。如图 4所示, 每一层的喷气嘴 11方向指向该层所在的检测空间的中心, 以增强吹打衣物中携带的可 疑颗粒的能力。 喷出气流的水平主要方向如喷气气流方向 27所示。 同一层的喷气嘴 11 一般同时开 /关, 不同层的喷气嘴 11分时开 /关, 一般自上而下依次幵或关, 等每一层喷 气嘴 11都喷完一次后, 再自上而下循环, 直到喷气过程结束, 其开关时序由总控制柜 17发出, 通过控制每个喷气嘴 11后面的电磁阀 7来实现。 A plurality of air nozzles 11 are disposed on both side walls of the detecting passage. As shown in Fig. 3, a plurality of air nozzles 11 are arranged in layers, generally not less than 4 layers (5 layers in Fig. 3), and each side has not less than 2 columns (3 columns in Fig. 3). As shown in Fig. 4, the air nozzle 11 of each layer is directed toward the center of the detection space in which the layer is located to enhance the ability to blow suspect particles carried in the laundry. The horizontal direction of the jet stream is indicated by the direction of the jet stream 27 . The air nozzles 11 of the same layer are generally turned on/off at the same time, and the air nozzles 11 of different layers are turned on/off in a time-sharing manner, generally being turned on or off from top to bottom, and after each layer of the air nozzles 11 is sprayed once, and then from the top. The lower cycle, until the end of the jetting process, its switching timing is issued by the main control cabinet 17, by controlling the solenoid valve 7 behind each of the air nozzles 11.
从图 5中可以看出, 本实施例中, 设置在检测通道的顶壁上朝下吹气的风刀 10包括 四个大风刀和两个小风刀, 并且四个大风刀围绕两个小风刀布置。 但本领域技术人员 应该理解的是, 这只是示例性的, 也可采用其它布置方式。 As can be seen from Fig. 5, in the present embodiment, the air knife 10 disposed to blow downward on the top wall of the detecting passage includes four large air blades and two small air blades, and four large air blades surround two small Wind knife arrangement. However, it should be understood by those skilled in the art that this is merely exemplary and other arrangements may be employed.
下面说明本发明的工作原理。 The working principle of the present invention will be described below.
1. 毒品 /爆炸物探测子系统的工作原理 1. How does the drug/explosive detection subsystem work?
如图 2所示,空气压缩机 1提供高压气体,压力 0.2〜0.8MPa,优选 0.5 MPa左右。 通过喷气嘴进气管 6给喷气嘴 11提供高压气体, 每个喷气嘴 11都通过一个电磁阔 7 控制其喷气 /关闭状态。 系统控制计算机 16通过总控制柜 17和气路控制信号线 30控 制电磁阀 7、 空气压缩机 1、 载气气流风机 2等部件开和关的时序。 空气压缩机 1和载 气气流风机 2吸入的空气来自进气口 3。 As shown in Fig. 2, the air compressor 1 supplies a high pressure gas at a pressure of 0.2 to 0.8 MPa, preferably about 0.5 MPa. The air nozzle 11 is supplied with high-pressure gas through the air nozzle intake pipe 6, and each of the air nozzles 11 controls its air-jet/close state by an electromagnetic width. The system control computer 16 controls the timing of opening and closing of the solenoid valve 7, the air compressor 1, the carrier gas flow fan 2, and the like through the main control cabinet 17 and the pneumatic control signal line 30. The air taken in by the air compressor 1 and the carrier gas flow fan 2 comes from the intake port 3.
在最上层喷气嘴 11第 1次开始工作的同时, 载气气流风机 2也幵始工作, 给如图5所示的风刀 10供气。 气流从风刀 10的风刀吹气口 9吹出, 形成载气气流, 其流动
方向如载气气流流动方向 26所示。 载气气流的作用是把由喷气嘴 11吹下来的可疑微 粒带动到吸气口 23。 At the same time as the uppermost air nozzle 11 starts working, the carrier gas flow fan 2 is also started to operate, and the air knife 10 shown in Fig. 5 is supplied with air. The air flow is blown from the air knife blowing port 9 of the air knife 10 to form a carrier gas flow, and the flow thereof The direction is as indicated by the carrier gas flow direction 26. The role of the carrier gas stream is to drive the suspect particles blown down by the air nozzle 11 to the suction port 23.
检测空间 28的载气气流被吸气风机 21吸入吸气口 23。 进入吸气口 23的含有可 疑微粒的气流通过预凝器 22时, 可疑微粒被吸附到预凝器 22中, 过滤后的气流, 经 过吸气风机 21、 排气管 13、 排气口 14排到外面的大气之中。 在解吸附的过程中, 预 凝器 22把吸附到的可疑微粒释出来, 被毒品 /爆炸物探测器 (IMS ) 20吸入进行分析, 废气经过排气管 13、 排气口 14排到外面的大气之中。 The carrier gas flow in the detection space 28 is sucked into the intake port 23 by the suction fan 21. When the airflow containing the suspected particles entering the intake port 23 passes through the precondenser 22, the suspected particles are adsorbed into the precondenser 22, and the filtered airflow passes through the intake fan 21, the exhaust pipe 13, and the exhaust port 14 Go to the outside atmosphere. During the desorption process, the pre-condenser 22 releases the adsorbed suspicious particles, is inhaled by the drug/explosive detector (IMS) 20 for analysis, and the exhaust gas is discharged to the outside through the exhaust pipe 13 and the exhaust port 14. In the atmosphere.
由毒品 /爆炸物探测器(IMS ) 20探测的数据通过数据线路送到总控制柜 17, 再送 入系统控制计算机 16进行分析, 结果在用户终端 24和指示灯 25上显示。 Data detected by the Drug/Explosives Detector (IMS) 20 is sent via data lines to the main control cabinet 17, and then sent to the system control computer 16 for analysis, and the results are displayed on the user terminal 24 and the indicator light 25.
开始检査时, 指示灯 25显示空闲(绿灯亮), 被检查的行人进入检测空间 28的指 定位置站好; 系统开始喷气、 吹气、 收集气体, 然后送到毒品、 爆炸物探测器 (IMS ) 20探测, 并最终由系统控制计算机 16给出分析结果。 如果发现有毒品、 爆炸物的痕 迹, 则发出警报, 同时指示灯 25报警 (红灯闪烁); 如果没有发现可以物, 则本次检 查结束, 指示灯 25显示空闲 (绿灯亮), 等待下一个被检人的进入。 When the inspection starts, the indicator light 25 shows idle (green light is on), and the inspected pedestrian enters the designated position of the detection space 28 to stand; the system starts to jet, blow, collect gas, and then sends it to the drug, explosive detector (IMS). 20 is detected, and finally the analysis result is given by the system control computer 16. If there are traces of drugs or explosives, an alarm is issued, and the indicator light 25 is alarmed (red light flashes); if no object is found, the inspection ends, the indicator light 25 is idle (green light is on), waiting for the next one Entry of the inspected person.
2. 射线探测子系统的工作原理 2. How the ray detection subsystem works
被检查的行人进入检测空间 28的指定位置,本系统在控制分析子系统的控制下先 于毒品 /爆炸物探测子系统开始启动工作,在毒品 /爆炸物探测子系统结束一次测量工作 后, 本子 统再结束本次测量工作。 The inspected pedestrian enters the designated position of the detection space 28, and the system starts the work before the drug/explosive detection subsystem under the control of the control analysis subsystem, and after the drug/explosive detection subsystem ends a measurement work, the book This test will be completed again.
由射线探测器 8检测 γ、 η射线, 其探测信号送入射线探测子系统控制盒 18。 由于 射线探测子系统容易受到干扰, 为了防止自来毒品 /爆炸物探测子系统的干扰信号, 所 以信号、 控制线经过信号隔离器 19, 以及信号隔离器至总控制柜信号线 15与总控制 柜 17互连, 探测数据最终送到系统控制计算机 16进行分析和处理, 其结果送到用户 终端 24上显示。指示灯 25上显示的结果是综合两个探测子系统的数据后的最后结果。 The gamma and gamma rays are detected by the ray detector 8, and the detection signals are sent to the ray detecting subsystem control box 18. Since the radiation detection subsystem is susceptible to interference, in order to prevent interference signals from the self-contained drug/explosive detection subsystem, the signal, control line passes through the signal isolator 19, and the signal isolator to the main control cabinet signal line 15 and the overall control cabinet 17 Interconnect, the probe data is ultimately sent to the system control computer 16 for analysis and processing, and the results are sent to the user terminal 24 for display. The result displayed on indicator light 25 is the final result after combining the data from the two detection subsystems.
这样, 根据本发明, 将两个探测子系统结合一起并使其可靠地工作, 可以同时完 成检查行人携带的毒品 /爆炸物和特殊核物质 /放射性物的任务,在保证准确性的同时提 高了检查效率。 Thus, according to the present invention, the two detection subsystems are combined and reliably operated, and the task of checking the drugs/explosives and special nuclear/radioactive materials carried by pedestrians can be completed at the same time, and the accuracy is improved. Check efficiency.
在不脱离由权利要求限定的本发明的精神和范围的情况下, 本领域普通技术人员 可以对本发明作出进一步修改和应用。
Further modifications and applications of the present invention can be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims
1. 一种安全检査门, 包括毒品 /爆炸物探测子系统和特殊核物质 /放射性物探测子 系统以及控制分析子系统, 这三个子系统共同安装在检查门壳体中, 其特征在于, 所 述安全检査门还设置有隔离装置, 所述隔离装置用于使毒品 /爆炸物探测子系统和特殊 核物质 /放射性物探测子系统相互隔离, 从而互不干扰地独立工作。 A safety inspection door comprising a drug/explosives detection subsystem and a special nuclear/radioactive substance detection subsystem and a control analysis subsystem, the three subsystems being jointly mounted in the inspection door housing, characterized in that The safety inspection door is also provided with an isolating device for isolating the drug/explosive substance detecting subsystem and the special nuclear material/radioactive substance detecting subsystem from each other so as to work independently without interference.
2. 根据权利要求 1所述的安全检查门, 其中, 所述隔离装置包括设置在特殊核物 质 /放射性物探测子系统和 /或毒品 /爆炸物探测子系统的信号线、 电源线和地线上的滤 波器、 去耦合器及光电隔离器。 2. The security inspection door according to claim 1, wherein the isolation device comprises a signal line, a power line and a ground line disposed in a special nuclear/radioactive substance detection subsystem and/or a drug/explosive substance detection subsystem. Filters, decouplers and opto-isolators.
3. 根据权利要求 1所述的安全检查门, 其中, 所述隔离装置包括由屏蔽材料制成 的屏蔽件, 所述屏蔽件设置在特殊核物质 /放射性物探测子系统中的射线探测器和前置 放大器上。 3. The security inspection door according to claim 1, wherein the isolation device comprises a shield made of a shielding material, the shield being disposed in a special nuclear matter/radioactivity detection subsystem and a radiation detector and On the preamplifier.
4. 根据权利要求 1所述的安全检查门, 进一步包括准直器, 所述准直器安装到特 殊核物质 /放射性物探测子系统中的射线探测器上, 来调节射线探测器的探测范围。 4. The security inspection door according to claim 1, further comprising a collimator mounted to the radiation detector in the special nuclear matter/radioactivity detection subsystem to adjust the detection range of the radiation detector .
5. 根据权利要求 4所述的安全检査门, 其中, 在检测通道两侧的所述射线探测器 的位置相互错开, 但在检测通道的高度方向上保持一定量的重叠。 The security inspection door according to claim 4, wherein the positions of the radiation detectors on both sides of the detection passage are shifted from each other, but a certain amount of overlap is maintained in the height direction of the detection passage.
6. 根据权利要求 1所述的安全检査门, 其中, 在所述控制分析子系统的控制下, 首先启动所述特殊核物质 /放射性物探测子系统进行探测,然后启动所述毒品 /爆炸物探 测子系统进行探测, 并且在检查结束时首先停止所述毒品 /爆炸物探测子系统, 最后停 止所述特殊核物质 /放射性物探测子系统。 6. The security inspection door according to claim 1, wherein, under the control of the control analysis subsystem, the special nuclear matter/radioactivity detection subsystem is first activated for detection, and then the drug/explosion is initiated. The object detection subsystem performs the detection and first stops the drug/explosive detection subsystem at the end of the inspection, and finally stops the special nuclear/radio detection subsystem.
7. 根据权利要求 1所述的安全检査门, 其中, 在检测通道的两个侧壁上设置有多 个喷气嘴, 所述多个喷气嘴分层布置, 同一层中的多个喷气嘴指向该层所在的检测空 间的中心。 7. The security inspection door according to claim 1, wherein a plurality of air nozzles are disposed on both side walls of the detecting passage, the plurality of air nozzles are arranged in layers, and a plurality of air nozzles in the same layer Points to the center of the detection space where the layer is located.
8. 根据权利要求 1所述的安全检查门, 其中, 在检测通道的顶壁上设置有朝下吹 气的风刀, 所述风刀包括四个大风刀和两个小风刀, 四个大风刀围绕两个小风刀布置。 8. The security inspection door according to claim 1, wherein a wind knife that blows downward is provided on a top wall of the detection passage, and the air knife includes four large air blades and two small air blades, four The wind knife is arranged around two small wind knives.
9. 根据权利要求 1所述的安全检査门, 进一步包括显示检测状态和检查结果的指 示灯和用户终端。 9. The security inspection door of claim 1, further comprising an indicator light and a user terminal that display the detection status and the inspection result.
10. 根据权利要求 1-9中任一权利要求所述的安全检査门, 其中, 所述毒品 /爆炸 物探测子系统的信号线和所述特殊核物质 /放射性物探测子系统的信号线在空间上相 互分离, 在必须交叉走线时, 采用垂直交叉布线。
The security inspection door according to any one of claims 1 to 9, wherein a signal line of the drug/explosive substance detecting subsystem and a signal line of the special nuclear material/radioactive substance detecting subsystem They are spatially separated from each other, and vertical cross wiring is used when it is necessary to cross the wires.
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CN2008101157866A CN101614682B (en) | 2008-06-27 | 2008-06-27 | Safety check door for detecting drug/exploder and special nuclear substance/radioactive substance |
CN200810115786.6 | 2008-06-27 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5915268A (en) * | 1997-12-22 | 1999-06-22 | Sandia Corporation | Vertical flow chemical detection portal |
EP1286151A1 (en) * | 2000-12-22 | 2003-02-26 | Ion Track Instruments LLC | 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
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5915268A (en) * | 1997-12-22 | 1999-06-22 | Sandia Corporation | Vertical flow chemical detection portal |
EP1286151A1 (en) * | 2000-12-22 | 2003-02-26 | Ion Track Instruments LLC | 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 |
Non-Patent Citations (2)
Title |
---|
LI, CHUANWEI.: "Interference in testing system and its elimination.", PROCESS AUTOMATION INSTRUMENTATION., vol. 26, no. 9, September 2005 (2005-09-01), pages 7 - 10 * |
LUO, PIN.: "Interference in the application of the inverter and its elimination.", SCIENCE&TECHNOLOGY INFORMATION., no. 23, 2007, pages 112 - 113 * |
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Publication number | Publication date |
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HK1140013A1 (en) | 2010-09-30 |
CN101614682B (en) | 2012-03-21 |
CN101614682A (en) | 2009-12-30 |
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