WO2022002127A1

WO2022002127A1 - Hazardous chemical security inspection apparatus and gate system

Info

Publication number: WO2022002127A1
Application number: PCT/CN2021/103526
Authority: WO
Inventors: 陈志强; 张丽; 黄清萍; 丁辉; 周勇; 陈佳宝; 包云肽; 仇全远; 方志强
Original assignee: 同方威视技术股份有限公司; 清华大学
Priority date: 2020-06-30
Filing date: 2021-06-30
Publication date: 2022-01-06
Also published as: CN111815830A

Abstract

A hazardous chemical security inspection apparatus and a gate system. The hazardous chemical security inspection apparatus (100) comprises a first machine body (1) and a second machine body (2) arranged opposite one another at a certain distance to form a security channel (3), the first machine body (1) being provided with an air blowing module, the air suction module blowing air into the security channel (3), the second machine body (2) being provided with an air suction module, and the air suction module sucking the gas in the security channel (3) to implement detection of hazardous chemicals in the gas.

Description

Hazardous chemical security inspection device and gate system

CROSS-REFERENCE TO RELATED APPLICATIONS

The present disclosure takes priority from the Chinese patent application filed on June 30, 2020 with the application number of 20201065165.5 and the invention titled “Security Inspection Device for Hazardous Chemicals and Gate System”, the entire content of which is incorporated herein by reference.

technical field

The present disclosure relates to the field of security inspection, and in particular, to a hazardous chemical security inspection device and a gate system including the hazardous chemical security inspection device.

Background technique

In recent years, in airports, railway stations, subways, large venues, buildings, communities, factories, tourist areas, etc., in order to ensure the safety of personnel and facilities, it is sometimes necessary to conduct security checks on the bodies and items of personnel to avoid the Dangerous chemicals such as flammable and explosive substances, drugs, etc. are brought into the above-mentioned places. Regarding the security inspection of hazardous chemicals, it is known to set up special trace detectors and other testing instruments, and arrange for testing personnel to use test strips to collect the body surface of the tested person or the outer surface of the luggage package, and then use the trace detector to carry out detection. In addition, in order to allow only persons with access rights to enter and exit the above-mentioned facilities, a gate system is usually used, and when certain conditions are met, the gate is opened to allow people to enter and exit.

SUMMARY OF THE INVENTION

As described above, the method of sampling hazardous chemicals through test strips is easy to be noticed by passers-by, and it is easy to attract the attention of suspicious persons carrying hazardous chemicals. In addition, the process is cumbersome, the work intensity of security inspectors is high, the passenger experience is poor, and the efficiency is low and labor costs are high. In addition, the consumption of test paper is large, resulting in high sampling cost.

The present disclosure provides a hazardous chemical security inspection device and a gate system integrated with the hazardous chemical security inspection device.

One aspect of the present disclosure provides a hazardous chemical security inspection device, including a first body and a second body, which are arranged opposite to each other at a certain distance to form a security inspection channel, the first body is provided with a blowing module, and the blowing module The air is blown into the security inspection channel, and a suction module is arranged in the second body, and the air suction module inhales the gas in the security inspection channel, and detects the dangerous chemicals on the gas.

Another aspect of the present disclosure provides a gate system, including the above-mentioned hazardous chemical security inspection device.

According to the security inspection device for hazardous chemicals provided by the present disclosure, it is not easy to attract the attention of suspicious persons. In addition, the sampling cost can be reduced, and the inspection efficiency can be improved.

Description of drawings

FIG. 1 is a schematic diagram showing Embodiment 1 of the hazardous chemical security inspection device of the present disclosure;

FIG. 2 is a schematic diagram illustrating a heat dissipation hole in Embodiment 1 of the hazardous chemical security inspection device of the present disclosure;

3 is a schematic diagram illustrating Embodiment 2 of the hazardous chemical security inspection device of the present disclosure;

4 is a schematic diagram illustrating a heat dissipation hole in Embodiment 2 of the hazardous chemical security inspection device of the present disclosure;

5 is a schematic diagram illustrating one example of a single-gate gate system of the present disclosure;

FIG. 6 is a schematic diagram illustrating one example of a dual gate gate system of the present disclosure.

Symbol Description

100 Hazardous chemical security inspection devices

1 The first body

11 hair dryer

2 second body

21 air intake

3 security check channels

4 cooling holes

detailed description

Hereinafter, specific embodiments of the present disclosure will be described with reference to the accompanying drawings.

The hazardous chemical security inspection device of the present disclosure is used to detect hazardous chemicals (hereinafter, also referred to as "hazardous chemicals"). Here, the hazardous chemicals include at least one of flammable and explosive substances, drugs, and toxic gases. Flammable and explosive substances can include: alcohol, gasoline, TNT (TNT), black powder (RDX), black powder (BP), Taian (PENT), nitroglycerin (NG), ammonium nitrate (AN), but not limited to this. Drugs may include: opium, heroin, methamphetamine (ice), morphine, marijuana, cocaine, K powder, ecstasy, but are not limited thereto. Toxic gases may include ammonia, ozone, nitrogen dioxide, sulfur dioxide, carbon monoxide, hydrogen sulfide, but are not limited thereto. In particular, the collection effect of volatile hazardous chemicals is better.

A first embodiment of the present disclosure provides a hazardous chemical security inspection device. The hazardous chemicals security inspection device collects and detects hazardous chemicals.

The hazardous chemical security inspection device 100 includes a first body 1 and a second body 2 . The first body 1 and the second body 2 are arranged opposite to each other at a certain distance to form a security inspection channel 3 . Here, a certain distance is the width of the security inspection channel 3, which can be arbitrarily set as required. The left and right positions of the first body 1 and the second body 2 relative to the security inspection channel 3 are also not limited.

The security inspection device for hazardous chemicals here can be implemented by means of, for example, a security inspection door, and the security inspection door also has a component connecting the tops of the first body 1 and the second body 2 . The specific shape and structure of the hazardous chemical security inspection device are not particularly limited, as long as it is a security inspection device that includes the above-mentioned first body 1 and second body 2 to form a security inspection channel 3 .

Hereinafter, an example of the hazardous chemical security inspection apparatus according to the first embodiment of the present disclosure will be described.

(Example 1)

In Embodiment 1, the first body 1 is provided with a blowing module, and the blowing module blows air into the security inspection channel 30 . The second body 2 is provided with an air suction module, and the air suction module inhales the gas in the security inspection channel 30 and performs dangerous chemical detection on the gas. The blowing module and the suction module are arranged oppositely.

The blowing module includes an air outlet 11 and a fan, and the air suction module includes an air inlet 21 and a hazardous chemical detector.

When a person passes through the security inspection channel 3, the air outlet 11 blows air into the security inspection channel 3, and the gas blown from the air outlet 11 blows over the person's human body and the surface of the luggage, and the dangerous chemicals contaminated on the surface of the human body and luggage are removed by the gas. When blown up, the gas blown over the surface of the human body and luggage is inhaled by the air suction port 21 and sent to the hazardous chemical detector, which detects the hazardous chemical on the gas.

Specifically, as shown in FIG. 1 , the blowing module is divided into four layers, and each layer has a blowing port 11 . The air outlet 11 is used to blow air into the security inspection channel 3 . The air outlet 11 is opened on the surface of the first body 1 facing the security inspection channel 3 . The four layers here are only examples, and may be n layers, where n is an integer greater than or equal to 1. In FIG. 1 , the air outlets 11 of each layer may be arranged in a row in the up-down direction.

The blower module also includes a fan. The fan is connected to the blower port 11 and provides air to the blower port 11 . The fan is installed inside the first body 1 .

There can be one or more fans in a blower module. For example, one fan may be installed in each layer, and the fan and the air outlet 11 on the same layer are respectively connected. Alternatively, a blower module may also have a fan, and all the blower ports 11 are connected to the fan. Alternatively, the n layers are divided into several groups, and the air outlets 11 of each group share a fan. In the case where a plurality of air outlets 11 share one fan, the effect of reducing the number of parts and thus the equipment cost can be obtained.

In addition, as shown in FIG. 1 , the air suction module is divided into four layers, and each layer has one air suction port 21 . The air suction port 21 is used to inhale the gas in the security inspection channel 3 . The air suction port 21 is opened on the surface of the second body 2 facing the security inspection channel 3 . The four layers here are only examples, and may be m layers, where m is an integer greater than or equal to 1.

The suction module also includes a hazardous chemical detector. The hazardous chemical detector is installed inside the second body 2 . The hazardous chemical detector is connected to the air suction port 21 . The hazardous chemical detector is used to detect hazardous chemicals on the gas inhaled from the air suction port 21 . In other words, by detecting whether the gas contains hazardous chemicals, the type of the hazardous chemicals can also be determined. The hazardous chemical detector can be appropriately selected according to the type of hazardous chemical to be detected. For example, a trace detector or the like can be used to detect inflammable and explosive substances, drugs, and the like.

There can be one or more hazardous chemical detectors in a suction module. For example, one hazardous chemical detector may be installed in each layer, and the hazardous chemical detector on the same layer is connected to the air suction port 21 respectively. Alternatively, a suction module can also have a hazardous chemical detector, and all the suction ports 21 are connected to the hazardous chemical detector. Alternatively, the m layers are divided into several groups, and the air suction ports 21 of each group share one hazardous chemical detector. When a plurality of air suction ports 21 share a single hazardous chemical detector, the effect of reducing the number of parts and thus the equipment cost can be obtained.

Wherein, it is preferable that a hazardous chemical detector is installed in each layer, and the hazardous chemical detector on the same layer is connected to the air suction port 21 respectively. Since each air suction port is in one-to-one correspondence with the hazardous chemical detector, the hazardous chemical detection can be performed individually for the gas inhaled by each air suction port 21 . Compared with the case of sharing hazardous chemical detectors, it is easier to detect trace amounts of hazardous chemicals, which can further reduce the missed detection rate. In addition, the detection results of multiple hazardous chemical detectors can be mutually verified.

The m layer of the air suction module and the n layer of the blowing module may be the same or different. Even if m and n are different, since the air blowing module and the air suction module are arranged opposite to each other, when there are a plurality of air suction ports 21, a part of the air blown out from the air blowing port 11 will be sucked by a certain air suction port 21, so that it is possible to Hazardous chemicals detected.

However, preferably, as described in FIGS. 1 and 2 , the m layer of the second body 2 and the n layer of the first body 1 are the same, and the air outlet 11 and the air suction outlet 21 of each layer are oppositely arranged. More preferably, the air outlet 11 of each layer and the air suction outlet 21 of each layer can be arranged coaxially. In this case, the air blown out from the air outlet 11 on each layer can be more effectively sucked in by the corresponding air suction outlet 21, which can improve the detection accuracy and reduce the missed detection rate.

In addition, heat dissipation holes may also be provided in the above-mentioned air blowing module and air suction module. Fans, hazardous chemical detectors and other components included in the blower module and the suction module will generate heat when they work, especially when multiple fans and hazardous chemical detectors are installed in the blower module and the suction module, respectively. heat will be higher. Therefore, preferably, as shown in FIG. 2 , one heat dissipation hole 4 is respectively provided on each layer of the air blowing module and the air suction module. In FIG. 2 , the heat dissipation holes 4 are arranged on the inner surfaces of the first body 1 and the second body 2 facing the security inspection channel. Thus, foreign objects brought into the security inspection channel are avoided.

Specifically, in FIG. 2 , it is shown that there are 4 layers in each of the air blowing module and the air suction module, and each layer of the air blowing module is installed with a fan, and each layer of the air suction module is installed with a hazardous chemical detection device. The case where a heat dissipation hole 4 is opened corresponding to the position of each fan and the hazardous chemical detector. That is, the positions of the heat dissipation holes 4 on the surfaces of the first body 1 and the second body 2 correspond to the positions of the fans and the hazardous chemical detectors inside the first body 1 and the second body 2 . The heat dissipation holes 4 can be opened on one surface of the first body 1 and the second body 2, or can be opened on both surfaces.

In addition, as shown in FIGS. 1 and 2 , it is preferable that the air outlet 11 and the air suction port 21 of each layer are arranged in a row in the up-down direction, respectively. During the process of moving the hazardous chemical particles in the width direction of the security inspection channel 30 due to the wind blown from the air outlet 11 , they will move downward for a certain distance due to gravity. In particular, hazardous chemical particles with larger mass are less affected by air resistance and thus move down a relatively large distance. Alternatively, when the width of the security inspection channel 30 is large, the moving time in the width direction is long, so that the downward moving distance is also large. At this time, when the gas blown out from the blowing port 11 reaches the second body 2, it may not be sucked by the air suction port 21 on the same layer. In this case, by arranging the blowing ports 11 and the air suction ports 21 in a row in the up-down direction, the falling hazardous chemical particles can be well sucked through the air suction ports 21 in the next layer, thereby reducing the missed detection rate.

As described above, in Embodiment 1, through the oppositely arranged blowing module and suction module, the hazardous chemicals attached to the human body, luggage, etc. of the passers-by passing through the security inspection channel 3 can be automatically collected, without the need to use test paper or the like for collection, Not only can the cost of labor and test strips be reduced, but also rapid collection can be achieved. In addition, this method is not easy to be detected by passers-by, so it is not easy to attract the attention of suspicious persons carrying dangerous chemicals, and the effect of non-inductive detection is better. In addition, through the structure of blowing and sucking air, the volatile hazardous chemicals on the surface of the human body, luggage, etc. are easily taken away by the gas, so that the collection effect of the volatile hazardous chemicals is better.

(Example 2)

The above-mentioned Embodiment 1 shows the case where only one air blowing module and one air suction module are respectively provided on the first body 1 and the second body 2 . Specifically, the first body 1 and the second body 2 have only one row of air vents and air intakes, respectively.

However, the first body 1 and the second body 2 may also be provided with a plurality of air blowing modules and air suction modules (multiple rows of air blowing ports and air suction ports).

3 and 4 show an example in which the first body 1 and the second body 2 are respectively provided with two air blowing modules and two air suction modules arranged in the front-rear direction of the security inspection channel. That is, as shown in FIGS. 3 and 4 , on the first body 1 and the second body 2 , two rows of air outlets 11 and air suction outlets 21 are arranged in the front-rear direction of the security inspection passage. However, the number of air blowing modules and air suction modules arranged in the front and rear directions of the security inspection channel is not limited to 2, and can be any number such as 3 or 4, which can be appropriately set according to the length of the security inspection channel 30 .

FIG. 4 is the same as the above-mentioned FIG. 2 , showing that a fan and a hazardous chemical detector are installed on each layer of each air blowing module and each air suction module, and each fan and hazardous chemical detector correspond to each other. When there are cooling holes.

However, the air vents on the same layer of multiple air blowing modules can also share the same fan. The suction ports of multiple suction modules can share the same hazardous chemical detector. In this case, the effect of reducing the number of parts and thus the number of devices can be obtained.

In Embodiment 2, in addition to the effects of Embodiment 1, by arranging a plurality of blowing modules and suction modules in the front and rear directions of the security inspection channel, the collection of hazardous chemicals can be performed at different positions in the front and rear. Further reduce the missed detection rate.

A second embodiment of the present disclosure provides a gate system. The gate system includes the hazardous chemical security inspection device 100 of the above-mentioned first embodiment, a gate, and a control device.

The control device controls the opening and closing of the shutter based on the detection result of the hazardous chemical detector included in the hazardous chemical security inspection device of the first embodiment. Only when no hazardous chemicals are detected, that is, the passers-by do not carry dangerous chemicals, the gate is opened so that the passers-by can pass through the gate. Alerts can be issued when hazardous chemicals are detected.

As shown in FIG. 5 , in a gate system with a single gate structure with only one gate, the hazardous chemical security inspection device 100 may be installed on the side wall of the passage outside the gate. The opening and closing of the gate is controlled according to the result of the hazardous chemical security inspection device.

In the gate system of the double gate structure with two gates, that is, in the case where the gate includes the gate at the entrance and the gate at the exit, the hazardous chemical screening device can be installed on the side wall of the passage outside the gate at the entrance, The opening and closing of the gate at the entrance is controlled according to the detection result. It can also be installed on the side wall of the gate passage between the gate at the entrance and the gate at the exit, and the opening and closing of the gate at the exit is controlled according to the detection result.

As shown in FIG. 6 , in the double-gate structure of FIG. 6 , in the case where the hazardous chemical security inspection device 100 is installed on the side wall of the gate passage between the gate at the entrance and the gate at the exit, since the hazardous chemicals are detected When the gate at the entrance and the gate at the exit are closed, suspicious persons carrying dangerous chemicals will be locked in the gate passage, thus avoiding the escape of suspicious persons and making it easier to capture suspicious persons.

As described above, according to the second embodiment, by combining the hazardous chemical security inspection device with the structure of a general gate, a gate system having the functions of collecting and detecting hazardous chemicals can be provided. Such a gate system can be combined with other functions such as identity authentication and health status check, and can be used as a multi-functional smart channel instead of checking one by one. Also, by closing the gate, it is easier to catch a suspicious person carrying a dangerous chemical than with an open security gate without a gate.

Although the embodiments and specific embodiments of the present disclosure have been described above with reference to the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present disclosure. within the scope defined by the appended claims.

Claims

A security inspection device for hazardous chemicals, comprising a first body and a second body, which are arranged opposite to each other at a certain distance to form a security inspection channel,

The first body is provided with a blowing module, and the blowing module blows air into the security inspection channel,

The second body is provided with an air suction module, and the air suction module inhales the gas in the security inspection channel, and performs dangerous chemical detection on the gas.
The hazardous chemical security inspection device according to claim 1, wherein,

The air blowing module and the air suction module are arranged opposite to each other.
The hazardous chemical security inspection device according to claim 2, wherein,

The blowing module includes a blowing port and a fan, the blowing port is opened on the inner surface of the first body and is connected with the fan,

The air suction module includes an air suction port and a hazardous chemical detector, the air suction port is opened on the inner surface of the second body, and is connected with the hazardous chemical detector,

the inner surface faces the security inspection channel,

The fan blows air to the security inspection channel through the air outlet,

The hazardous chemical detector detects the hazardous chemicals contained in the gas in the security inspection channel inhaled through the air suction port.
The hazardous chemical security inspection device according to claim 3, wherein,

The blowing module is divided into n layers in the up-down direction, and each layer is installed with one of the blowing ports;

The air suction module is divided into m layers in the up and down direction, and each layer is installed with one of the air suction ports,

The n and m are each an integer greater than or equal to 1.
The hazardous chemical security inspection device according to claim 4, wherein,

The first body includes a plurality of the air suction modules arranged in the front-rear direction of the security inspection channel,

The second body includes a plurality of the blowing modules arranged in the front-rear direction of the security inspection channel.
The hazardous chemical security inspection device according to claim 5, wherein,

The air outlets on the same layer of the plurality of air blowing modules share one fan,

The air suction ports on the same layer of the plurality of air suction modules share one hazardous chemical detector.
The hazardous chemical security inspection device according to claim 4, wherein,

The fan is installed on each layer of the air blowing module, and the air outlet and the fan on the same layer are connected to each other.
The hazardous chemical security inspection device according to claim 4, wherein,

One of the hazardous chemical detectors is installed on each layer of the air suction module, and the air suction ports and the hazardous chemical detectors on the same layer are connected to each other.
The hazardous chemical security inspection device according to any one of claims 4 to 8, wherein,

The n and the m are the same.
The hazardous chemical security inspection device according to claim 9, wherein,

The air outlet of each layer of the air blowing module is coaxial with the air suction port of each layer of the air suction module.
The hazardous chemical security inspection device according to any one of claims 4 to 8, wherein,

The air outlets of the n layers are arranged in a row in the up-down direction;

The air suction ports of the m layers are arranged in a row in the up-down direction.
The hazardous chemical security inspection device according to claim 8, wherein,

Each layer of at least one of the air suction module and the air blowing module is respectively provided with cooling holes.
The hazardous chemical security inspection device according to claim 12, wherein,

The heat dissipation holes are located on the inner surfaces of the first body and the second body.
The hazardous chemical security inspection device according to any one of claims 1 to 8, wherein,

The hazardous chemicals are volatile.
A gate system, comprising the hazardous chemical security inspection device according to any one of claims 1 to 14.
The gate system of claim 15, wherein,

Also includes: gates and controls,

The control device controls the opening and closing of the shutter according to the detection result of the air suction module.