Security unit and security system

Abstract

This invention provides a security inspection unit and a security inspection system. The security inspection unit includes a first security inspection pair, which comprises a first radio frequency imaging system and a second radio frequency imaging system. One side of the first radio frequency imaging system has a first positive detection area and a first front-side detection area sequentially arranged along the extension direction of the security inspection channel. The second radio frequency imaging system has a first back-side detection area and a first rear-side detection area. The first front-side detection area and the first rear-side detection area are arranged opposite each other in a first direction to form a side detection position. Along the direction from the entrance area to the exit area, the first positive detection area, the side detection position, and the first back-side detection area are sequentially arranged. Therefore, the security inspection unit of this invention has the advantages of saving space in the security inspection channel and improving passage efficiency.

Description

Technical Field

[0001] This utility model relates to the field of security inspection technology, specifically to a security inspection unit and a security inspection system having the security inspection unit. Background Technology

[0002] Security screening devices primarily employ two modes for omnidirectional human detection: one involves the person being inspected standing within the screening lane and rotating during the inspection; the other involves the person standing still while the security device rotates and scans them. However, both modes require a stop, resulting in low throughput. In situations with high pedestrian traffic, this can easily lead to congestion, further reducing inspection efficiency. Among related technologies, radio frequency imaging (RFI) systems can detect individuals while they are walking. In practical applications, RFI systems are typically positioned opposite each other on both sides of the screening lane; however, due to improper placement, this results in low accuracy and excessive space consumption. Utility Model Content

[0003] In view of this, the present invention aims to provide a security inspection unit and a security inspection system to solve the problems of unreasonable security inspection unit layout in the prior art, which results in low security inspection accuracy and excessive space occupation.

[0004] This utility model provides a security inspection unit.

[0005] In another aspect, this utility model provides a security inspection system.

[0006] This utility model embodiment's security inspection unit first security inspection pair includes a first radio frequency imaging system and a second radio frequency imaging system. The first and second radio frequency imaging systems define a curved and extending security inspection channel. One side of the first radio frequency imaging system has a first positive detection area and a first front-side detection area sequentially arranged along the extension direction of the security inspection channel. The second radio frequency imaging system has a first back-side detection area and a first rear-side detection area. The first front-side and first rear-side detection areas are arranged opposite each other in a first direction to form a side detection position. Along the direction from the entrance area to the exit area, the first positive detection area, the side detection position, and the first back-side detection area are arranged sequentially. It can be understood that the first positive detection area and the second radio frequency imaging system are offset in the first direction, and the first back-side detection area is also offset in the first direction.

[0007] The security inspection unit of this utility model forms a side inspection position by arranging the first front side inspection area of ​​the first radio frequency imaging system and the first rear side inspection area of ​​the second radio frequency imaging system opposite to each other in the first direction. During the process of the inspected person passing through the security inspection channel, all-round inspection from the front, left and right sides and the back can be completed. Compared with the single-side inspection method in related technologies, it can greatly improve the inspection efficiency, reduce the dwell time of the inspected person, and thus effectively improve the passage efficiency.

[0008] Meanwhile, since the first frontal detection area, the side detection area, and the first back detection area are set up sequentially along the extension direction of the security check channel, the person being inspected can complete a comprehensive body security check without having to turn around or move when passing through the security check channel, which further improves the convenience and comfort of the security check.

[0009] Furthermore, the first front lateral detection area and the first rear lateral detection area are arranged opposite each other in the first direction to form a lateral detection position, which helps to further reduce the overall space occupied by the security inspection unit. In addition, the curved and extended security inspection channel defined by the first radio frequency imaging system and the second radio frequency imaging system not only helps to further reduce the overall space occupied by the security inspection unit, but also guides the inspected person to walk along a preset path to a certain extent, thereby ensuring the accuracy and reliability of the security inspection effect.

[0010] Therefore, the security inspection unit of this utility model embodiment has the advantages of saving security inspection channel layout space and improving passage efficiency.

[0011] In some embodiments, a section of the security check lane located in front of the first positive detection area is positioned directly opposite the first positive detection area in the first direction; a section of the security check lane located in front of the first negative detection area is positioned directly opposite the first positive detection area in the first direction.

[0012] In some embodiments, the first radio frequency imaging system has a first imaging surface extending toward the second radio frequency imaging system, the first imaging surface including a first orthogonal detection area and a first anterior-lateral detection area connected together, the second radio frequency imaging system has a second imaging surface extending toward the first radio frequency imaging system, the second imaging surface including a first dorsal detection area and a first posterior-lateral detection area connected together, each of the first anterior-lateral detection area and the first posterior-lateral detection area having an obtuse angle with the first direction.

[0013] In some embodiments, the first imaging surface of the first radio frequency imaging system is a curved or folded surface; the second imaging surface of the second radio frequency imaging system is a curved or folded surface.

[0014] In some embodiments, the first radio frequency imaging system further includes a second front-side detection area, the second front-side detection area and the first front-side detection area being disposed opposite to each other on both sides of the first front-side detection area in a second direction; the second radio frequency imaging system further includes a second rear-side detection area, the second rear-side detection area and the first rear-side detection area being disposed opposite to each other on both sides of the first rear-side detection area in the second direction, and the second front-side detection areas of two adjacent first security check pairs can be disposed opposite to each other in a first direction to form another security check channel between adjacent first security check pairs, wherein the first direction and the second direction are perpendicular to each other.

[0015] In some embodiments, the first radio frequency imaging system and the second radio frequency imaging system are terahertz radio frequency imaging systems or millimeter-wave radio frequency imaging systems.

[0016] In some embodiments, the security inspection unit further includes an alarm device that responds to signals from each of the first radio frequency imaging system and the second radio frequency imaging system.

[0017] The security inspection system of this utility model includes a security inspection unit according to any one of the above-mentioned claims.

[0018] In some embodiments, the security inspection unit has multiple units, which are spaced apart along the second direction to form multiple security inspection channels. The first radio frequency imaging system further includes a second front side detection area, and the second radio frequency imaging system further includes a second rear side detection area. The second front side detection area and the second rear side detection area of ​​two adjacent first security inspection pairs are arranged opposite to each other in the first direction to form another security inspection channel between adjacent first security inspection pairs.

[0019] In some embodiments, the security inspection system further includes a second security inspection pair disposed opposite to the first security inspection pair in a first direction. The second security inspection pair includes a third radio frequency imaging system and a fourth radio frequency imaging system. The third radio frequency imaging system has a curved and extended third imaging surface facing the side closer to the first radio frequency imaging system, and the fourth radio frequency imaging system has a curved and extended fourth imaging surface facing the side closer to the third radio frequency imaging system. The third imaging surface and the fourth imaging surface limit the security inspection extension channel.

[0020] In some embodiments, the third imaging surface includes a third anterior side detection area, a second orthogonal detection area, and a fourth anterior side detection area, which are sequentially disposed thereon. The fourth imaging surface includes a third posterior side detection area, a second back view detection area, and a fourth posterior side detection area, wherein the second orthogonal detection area and the first back view detection area are disposed opposite to each other in a first direction.

[0021] In some embodiments, the fourth rear-side detection area and the third front-side detection area are disposed opposite to each other in the first direction, and the third front-side detection area and the fourth rear-side detection area of ​​the adjacent first security check pair are disposed opposite to each other in the first direction.

[0022] In some embodiments, the first radio frequency imaging system and the fourth radio frequency imaging system are integrally formed.

[0023] In some embodiments, the security inspection unit further includes a fifth radio frequency imaging system. In the second direction, the fifth radio frequency imaging system is disposed on one side of the first radio frequency imaging system located at the outermost edge. The fifth radio frequency imaging system has a fifth imaging surface and a sixth imaging surface disposed opposite to each other. A portion of the fifth imaging surface can be disposed opposite to the second rear-side detection area of ​​the second radio frequency imaging system located at the outermost edge in the first direction, and a portion of the sixth imaging surface can be disposed opposite to the third front-side detection area of ​​the third imaging surface in the first direction. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a security inspection unit according to an embodiment of the present invention.

[0025] Figure 2 yes Figure 1 A schematic diagram of the central security inspection unit combined with the walking route of the inspected person.

[0026] Figure 3 This is a schematic diagram of the security inspection unit according to another embodiment of the present invention.

[0027] Figure 4 This is a structural schematic diagram of a security inspection unit according to another embodiment of the present invention.

[0028] Figure 5 yes Figure 4 A schematic diagram of the central security inspection unit combined with the walking route of the inspected person.

[0029] Figure 6 This is a structural schematic diagram of a security inspection unit according to another embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures: First radio frequency imaging system 1; First imaging plane 11; First anterior side detection area 111; First frontal detection area 112; Second anterior side detection area 113; Fourth imaging plane 12; Third rear-side detection area 121; Second rear-side detection area 122; Fourth rear-side detection area 123; Second radio frequency imaging system 2; second imaging surface 21; first rear-side detection area 211; first rear-side detection area 212; second rear-side detection area 213; Third radio frequency imaging system 3; third imaging plane 31; third anterior side detection area 311; second frontal detection area 312; fourth anterior side detection area 313; Fifth radio frequency imaging system 4; fifth imaging plane 41; sixth imaging plane 42. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0032] The following is for reference. Figures 1-6 The following describes the security inspection unit and security inspection system according to embodiments of the present utility model.

[0033] The first security inspection unit of this utility model embodiment includes a first radio frequency imaging system 1 and a second radio frequency imaging system 2. The first radio frequency imaging system 1 and the second radio frequency imaging system 2 define a curved and extended security inspection channel. One side of the first radio frequency imaging system 1 has a first positive detection area 112 and a first front side detection area 111 arranged sequentially along the extension direction of the security inspection channel. The second radio frequency imaging system 2 has a first back detection area 212 and a first rear side detection area 211. The first front side detection area 111 and the first rear side detection area 211 are connected in a first direction (e.g., ...). Figure 1 The first positive detection area 112, the side detection area, and the first negative detection area 212 are arranged opposite each other in the Y direction (as shown in the diagram) to form a side detection area. Along the direction from the entrance area to the exit area, the first positive detection area 112, the side detection area, and the first negative detection area 212 are arranged in sequence. It can be understood that the first positive detection area 112 is offset from the second radio frequency imaging system 2 in the first direction, and the first negative detection area 212 is offset from the first radio frequency imaging system 1 in the first direction.

[0034] The security inspection unit of this utility model forms a side inspection position by arranging the first front side inspection area 111 of the first radio frequency imaging system 1 and the first rear side inspection area 211 of the second radio frequency imaging system 2 opposite to each other in a first direction. During the process of the inspected person passing through the security inspection channel, all-round inspection from the front, left and right sides and the back can be completed. Compared with the single-side inspection method in related technologies, it can greatly improve the inspection efficiency, reduce the dwell time of the inspected person, and thus effectively improve the passage efficiency.

[0035] Meanwhile, since the first frontal detection area 112, the side detection area, and the first back detection area 212 are arranged sequentially along the extension direction of the security check channel, the person being inspected can complete a comprehensive body security check without having to turn around or move when passing through the security check channel, which further improves the convenience and comfort of the security check.

[0036] Furthermore, the first front lateral detection area 111 and the first rear lateral detection area 211 are arranged opposite each other in the first direction to form a lateral detection position, which helps to further reduce the overall space occupied by the security inspection unit. In addition, the curved and extended security inspection channel defined by the first radio frequency imaging system 1 and the second radio frequency imaging system 2 not only helps to further reduce the overall space occupied by the security inspection unit, but also guides the inspected person to walk along a preset path to a certain extent, thereby ensuring the accuracy and reliability of the security inspection effect.

[0037] Therefore, the security inspection unit of this utility model embodiment has the advantages of saving security inspection channel layout space and improving passage efficiency.

[0038] Optionally, an indicator can be set at the very front of the security checkpoint near the first front side detection area 111 to guide the person being checked to walk in the direction of the security checkpoint, so as to avoid the situation where the person cannot be identified due to obstruction, and further improve the accuracy of the security check.

[0039] like Figures 1 to 6 As shown, the security check channel is located in front of the first positive detection area 112 and is directly opposite to the first positive detection area 112 in the first direction; the security check channel is located in front of the first negative detection area 212 and is directly opposite to the first positive detection area 112 in the first direction.

[0040] The security inspection unit of this utility model has a structure in which a section of the security inspection channel is located in front of the first positive detection area 112 and is directly opposite to the first positive detection area 112 in a first direction, and a section of the security inspection channel is located in front of the first negative detection area 212 and is directly opposite to the first positive detection area 112 in a first direction. This structural layout can ensure that the inspected person is within the effective detection range when entering and leaving the security inspection channel, avoiding the problem of detection omissions caused by positional offset and obstruction, and further enhancing the comprehensiveness and accuracy of security inspection.

[0041] like Figures 1 to 6As shown, the first radio frequency imaging system 1 has a first imaging surface 11 extending toward the second radio frequency imaging system 2. The first imaging surface 11 includes a first positive detection area 112 and a first frontal detection area 111 connected together. The second radio frequency imaging system 2 has a second imaging surface 21 extending toward the first radio frequency imaging system 1. The second imaging surface 21 includes a first negative detection area 212 and a first rearal detection area 211 connected together. Each of the first frontal detection area 111 and the first rearal detection area 211 forms an obtuse angle with the first direction.

[0042] The security inspection unit of this embodiment of the invention designs the first imaging surface 11 to include a first frontal detection area 112 and a first front-side detection area 111 connected together, and the second imaging surface 21 to include a first rear-side detection area 212 and a first rear-side detection area 211 connected together. Furthermore, each of the first front-side detection area 111 and the first rear-side detection area 211 forms an obtuse angle with a first direction. This design allows the imaging surface to better conform to the body contour of the person being inspected, thereby acquiring more accurate and comprehensive image information during the inspection process. This helps reduce detection errors caused by mismatch between the imaging surface and the person's body, further improving the reliability and effectiveness of security inspections.

[0043] Furthermore, the angles formed by the first front side detection area 111 and the first rear side detection area 211 with the first direction are obtuse angles. This allows the inspected person to walk along the curved extension of the detection path within the security checkpoint, avoiding blind spots caused by right-angle turns. It also helps to achieve a wider detection range within a limited space, thereby further optimizing the space utilization of the security unit while ensuring the effectiveness of security checks.

[0044] like Figures 1 to 3 As shown, the first imaging surface 11 of the first radio frequency imaging system 1 is folded, and the second imaging surface 21 of the second radio frequency imaging system 2 is folded.

[0045] The security inspection unit of this utility model designes both the first imaging surface 11 of the first radio frequency imaging system 1 and the second imaging surface 21 of the second radio frequency imaging system 2 as folded surfaces. This structure better adapts to the human body shape, making the imaging surface fit the body contour of the person being inspected more closely. This effectively reduces the detection blind zone caused by the mismatch between the imaging surface and the human body, thereby significantly improving the accuracy and reliability of security inspections.

[0046] like Figures 4 to 6As shown, the security inspection unit of this utility model embodiment is not limited to this. In other embodiments, the first imaging surface 11 of the first radio frequency imaging system 1 is curved, and the second imaging surface 21 of the second radio frequency imaging system 2 is curved. Such a structure can better adapt to the human body shape, making the imaging surface fit the body contour of the inspected person more closely. Similarly, it can significantly improve the accuracy and reliability of security inspection.

[0047] like Figures 1 to 6 As shown, the first radio frequency imaging system 1 further includes a second anterior lateral detection region 113, the second anterior lateral detection region 113 and the first anterior lateral detection region 111 in a second direction (e.g., Figure 1 The X-direction shown is arranged opposite to each other on both sides of the first front detection area 112; the second radio frequency imaging system 2 also includes a second rear side detection area 213, the second rear side detection area 213 and the first rear side detection area 211 are arranged opposite to each other on both sides of the first back detection area 212 in the second direction, and the second front side detection area 113 of two adjacent first security check pairs can be arranged opposite to each other with the adjacent second rear side detection area 213 in the first direction to form another security check channel between adjacent first security check pairs, wherein the first direction and the second direction are arranged perpendicularly.

[0048] The security inspection unit of this utility model embodiment, by adding a second front side detection area 113 and a second rear side detection area 213, and arranging them opposite to each other on both sides of the first front detection area 112 and the first back detection area 212 in a second direction, allows additional detection channels to be formed between two adjacent first security inspection pairs. In particular, when multiple first security inspection pairs are used in combination, the second front side detection area 113 and the second rear side detection area 213 between adjacent security inspection units can be arranged opposite each other to form multiple security inspection channels. This design not only improves the passenger flow rate during security checks but also enhances the collaborative working ability between security inspection units. At the same time, this structural design maintains the overall compactness of the security inspection unit and does not significantly increase its space occupation due to the addition of detection areas.

[0049] The first radio frequency imaging system 1 and the second radio frequency imaging system 2 are either terahertz radio frequency imaging systems or millimeter-wave radio frequency imaging systems.

[0050] The security inspection unit of this utility model uses a terahertz radio frequency imaging system or a millimeter-wave radio frequency imaging system as the core detection component. Both systems have the advantages of strong penetration, high resolution, and sensitivity to non-metallic substances. They can detect a variety of substances, including metallic and non-metallic items, explosives, and drugs, thereby greatly improving the accuracy and reliability of security inspections.

[0051] The security inspection unit of this utility model embodiment also includes an alarm device, which responds to signals from each of the first radio frequency imaging system 1 and the second radio frequency imaging system 2.

[0052] The security inspection unit of this embodiment is equipped with an alarm device that responds to signals from the first radio frequency imaging system 1 and the second radio frequency imaging system 2. When a suspicious item is detected, the alarm device can immediately sound an alarm, alerting security personnel to take timely action. This design not only improves the real-time performance of security checks but also enhances the emergency response capabilities of the security inspection unit, providing strong protection for the safety of public places.

[0053] The security inspection system of this utility model embodiment includes a security inspection unit according to any one of the above-described embodiments.

[0054] Therefore, the security inspection system of this utility model has the advantages of saving security inspection channel layout space and improving passage efficiency.

[0055] like Figure 3 and Figure 6 As shown, there are multiple security inspection units, which are spaced apart along the second direction to form multiple security inspection channels. The second front side detection area 113 and the second rear side detection area 213 of two adjacent first security inspection pairs are arranged opposite each other in the first direction to form another security inspection channel between adjacent first security inspection pairs.

[0056] The security inspection system of this embodiment, by arranging multiple security inspection units at intervals along a second direction, can form multiple security inspection lanes. This layout greatly improves the overall throughput capacity of the security inspection system. Furthermore, the number and spacing of the security inspection units can be flexibly adjusted according to the volume of people and security inspection needs, thereby meeting the security inspection requirements in different scenarios. Simultaneously, the second front-side detection area 113 and the second rear-side detection area 213 of two adjacent first security inspection pairs are arranged opposite each other in the first direction, forming an additional detection area, further enhancing the comprehensiveness and accuracy of the security inspection.

[0057] like Figure 3 and Figure 6 As shown, the security inspection system of this utility model embodiment further includes a second security inspection pair disposed opposite to the first security inspection pair in a first direction. The second security inspection pair includes a third radio frequency imaging system and a fourth radio frequency imaging system. The third radio frequency imaging system has a curved and extended third imaging surface facing the side close to the first radio frequency imaging system, and the fourth radio frequency imaging system has a curved and extended fourth imaging surface facing the side close to the third radio frequency imaging system. The third imaging surface and the fourth imaging surface limit the security inspection extension channel.

[0058] The security inspection system of this utility model embodiment adds a third radio frequency imaging system and a fourth radio frequency imaging system. The third radio frequency imaging system 3 has a curved and extended third imaging surface 31 on the side facing the first radio frequency imaging system 1, while the first radio frequency imaging system 1 has a curved and extended fourth imaging surface 12 on the side facing the third radio frequency imaging system 3. These two imaging surfaces together define the security inspection extension channel. This design not only further enriches the detection dimensions of the security inspection unit, allowing inspected personnel to undergo more comprehensive and detailed inspection when passing through the security inspection channel, but also effectively improves the flexibility and adaptability of the security inspection channel. Especially when dealing with complex crowd flow or special security inspection needs, the security inspection extension channel can provide additional detection space to ensure the smooth progress of security inspection work. At the same time, this structural design also maintains the overall coordination and aesthetics of the security inspection unit, and will not destroy its original layout and appearance due to the addition of imaging surfaces.

[0059] Furthermore, the first radio frequency imaging system and the fourth radio frequency imaging system are integrally formed.

[0060] The security inspection system of this utility model integrates the first radio frequency imaging system and the fourth radio frequency imaging system into a single unit. This integrated design not only simplifies the structure of the security inspection system and reduces the connection and debugging steps between components, thereby improving the stability and reliability of the system, but also helps to reduce the overall size of the security inspection system, further saving deployment space and making the security inspection system more suitable for locations with limited space.

[0061] like Figure 3 and Figure 6 As shown, the third imaging surface 31 includes a third frontal detection area 311, a second frontal detection area 312 and a fourth frontal detection area 313 arranged sequentially, and the fourth imaging surface 12 includes a third rearal detection area 121, a second rearal detection area 122 and a fourth rearal detection area 123. The second frontal detection area 312 and the first rearal detection area 212 are arranged opposite to each other in a first direction.

[0062] The security inspection system of this embodiment of the invention achieves multi-layered, multi-angle, all-around detection by subdividing the third radio frequency imaging system 3 into a third front-side detection area 311, a second front-side detection area 312, and a fourth front-side detection area 313, and precisely aligning them with the corresponding detection areas of the first radio frequency imaging system 1. This design not only ensures that the person being inspected can be effectively detected regardless of their position when passing through the security checkpoint, but also further enhances the coverage of various parts of the person's body by the relative arrangement of the third radio frequency imaging system 3 and the first radio frequency imaging system 1.

[0063] like Figure 3 and Figure 6 As shown, the fourth rear side detection area 123 and the third front side detection area 311 are arranged opposite to each other in the first direction, and the third front side detection area 311 and the fourth rear side detection area 123 of the adjacent first security check pair are arranged opposite to each other in the first direction.

[0064] The security inspection system of this utility model extends the detection path by arranging the fourth rear side detection area 123 relative to the third front side detection area 311, and by arranging the third front side detection area 311 relative to the fourth rear side detection area 123 of the adjacent first security inspection pair. This arrangement increases the accuracy of security inspection.

[0065] like Figure 3 and Figure 6 As shown, the security inspection system also includes a fifth radio frequency imaging system 5. In the second direction, the fifth radio frequency imaging system 5 is disposed on one side of the first radio frequency imaging system 1 located at the outermost edge. The fifth radio frequency imaging system 5 has a fifth imaging surface 51 and a sixth imaging surface 52 disposed opposite to each other. A portion of the fifth imaging surface 51 can be disposed opposite to the second rear side detection area 213 of the second radio frequency imaging system 2 located at the outermost edge in the first direction. A portion of the sixth imaging surface 52 can be disposed opposite to the third front side detection area 311 of the third imaging surface 31 in the first direction.

[0066] The security inspection system of this embodiment, by adding a fifth radio frequency imaging system 5 and cleverly placing it on one side of the first radio frequency imaging system 1 located at the outermost edge, makes full use of space resources and avoids space waste caused by adding detection equipment. This allows the security inspection system to maintain high detection capabilities while also possessing good spatial adaptability. The addition of the fifth radio frequency imaging system 5 can significantly improve the overall throughput and detection efficiency of the security inspection system.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications or equivalent substitutions made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

[0068] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0072] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A security inspection unit, characterized in that, include: The first security checkpoint pair includes a first radio frequency imaging system and a second radio frequency imaging system. The first radio frequency imaging system and the second radio frequency imaging system define a curved and extended security checkpoint. One side of the first radio frequency imaging system has a first positive detection area and a first front side detection area arranged sequentially along the extension direction of the security checkpoint. The second radio frequency imaging system has a first back detection area and a first rear side detection area. The first front side detection area and the first rear side detection area are arranged opposite to each other in a first direction to form a side detection position. Along the direction from the entrance area to the exit area, the first positive detection area, the side detection position and the first back detection area are arranged sequentially.

2. The security inspection unit according to claim 1, characterized in that, The security check lane is located in front of the first positive positioning detection area and is directly opposite the first positive positioning detection area in the first direction; The security checkpoint is located in front of the first back-view detection area and is directly opposite the first front-view detection area in the first direction.

3. The security inspection unit according to claim 2, characterized in that, The first radio frequency imaging system has a first imaging surface extending toward the second radio frequency imaging system, the first imaging surface including a first positive detection area and a first frontal detection area connected together, the second radio frequency imaging system has a second imaging surface extending toward the first radio frequency imaging system, the second imaging surface including a first negative detection area and a first rearal detection area connected together, each of the first frontal detection area and the first rearal detection area having an obtuse angle with the first direction.

4. The security inspection unit according to claim 3, characterized in that, The first imaging surface of the first radio frequency imaging system is configured as a curved surface or a folded surface; The second imaging surface of the second radio frequency imaging system is set as a curved surface or a folded surface.

5. The security inspection unit according to claim 3, characterized in that, The first radio frequency imaging system further includes a second front-side detection area, which is disposed opposite to the first front-side detection area on both sides of the first front-side detection area in a second direction; the second radio frequency imaging system further includes a second rear-side detection area, which is disposed opposite to the first rear-side detection area on both sides of the first rear-side detection area in the second direction. The second front-side detection areas of two adjacent first security check pairs can be disposed opposite to their adjacent second rear-side detection areas in a first direction to form another security check channel between adjacent first security check pairs, wherein the first direction and the second direction are perpendicular to each other.

6. The security inspection unit according to any one of claims 1-5, characterized in that, The first radio frequency imaging system and the second radio frequency imaging system are terahertz radio frequency imaging systems or millimeter-wave radio frequency imaging systems; And / or, it also includes an alarm device that responds to a signal from each of the first radio frequency imaging system and the second radio frequency imaging system.

7. A security inspection system, characterized in that, Includes the security inspection unit according to any one of claims 1-6.

8. The security inspection system according to claim 7, characterized in that, The security inspection unit has multiple units, which are spaced apart along a second direction to form multiple security inspection channels. The first radio frequency imaging system also includes a second front side detection area and a second rear side detection area. The second front side detection area and the second rear side detection area of ​​two adjacent first security inspection pairs are arranged opposite to each other in a first direction to form another security inspection channel between adjacent first security inspection pairs.

9. The security inspection system according to claim 8, characterized in that, It also includes a second security check pair arranged opposite to the first security check pair in a first direction. The second security check pair includes a third radio frequency imaging system and a fourth radio frequency imaging system. The third radio frequency imaging system has a curved and extended third imaging surface facing the side closer to the first radio frequency imaging system, and the fourth radio frequency imaging system has a curved and extended fourth imaging surface facing the side closer to the third radio frequency imaging system. The third imaging surface and the fourth imaging surface limit the security check extension channel.

10. The security inspection system according to claim 9, characterized in that, The third imaging surface includes a third frontal detection area, a second orthogonal detection area, and a fourth frontal detection area arranged sequentially. The fourth imaging surface includes a third rearal detection area, a second back detection area, and a fourth rearal detection area. The second orthogonal detection area and the first back detection area are arranged opposite to each other in a first direction. And / or, the fourth rear side detection area is disposed opposite to the third front side detection area in the first direction, and the third front side detection area is disposed opposite to the fourth rear side detection area of ​​the adjacent first security check pair in the first direction; And / or, the first radio frequency imaging system and the fourth radio frequency imaging system are integrally formed; And / or, it also includes a fifth radio frequency imaging system, which is disposed on one side of the first radio frequency imaging system located at the outermost edge in the second direction. The fifth radio frequency imaging system has a fifth imaging surface and a sixth imaging surface disposed opposite to each other. A portion of the fifth imaging surface can be disposed opposite to the second rear-side detection area of ​​the second radio frequency imaging system located at the outermost edge in the first direction, and a portion of the sixth imaging surface can be disposed opposite to the third front-side detection area of ​​the third imaging surface in the first direction.

Images