Vehicle detection system

Abstract

This invention proposes a vehicle detection system. The vehicle detection system includes a horizontal detector arm, two vertical detector arms, a radiation source, multiple horizontal detectors, and multiple vertical detectors. The horizontal detector arm can be positioned on the ground. The two vertical detector arms are located at both ends of the horizontal detector arm. The radiation source is located above the horizontal detector arm. The multiple horizontal detectors are arranged inside the horizontal detector arm and laid flat along the length of the horizontal detector arm to receive radiation emitted by the radiation source. The multiple vertical detectors are symmetrically arranged on the two vertical detector arms, with each vertical detector facing the center point of the radiation source, to receive radiation emitted by the radiation source.

Description

Technical Field

[0001] The invention relates to a vehicle detection system. Background Art

[0002] At present, vehicle detection systems have been widely used in airports, stations, docks and other places. Radiation imaging technology is used to detect the interior of the vehicle and obtain images of the interior of the vehicle to check whether there are contraband. Among the existing vehicle inspection systems, the vehicle detection system using top-view imaging is widely used.

[0003] The existing top-view imaging vehicle detection system usually includes a radiation source and a transverse detector arm buried underground. The radiation source is arranged above the transverse detector arm and can emit X-rays or gamma rays that can penetrate the vehicle. A plurality of detectors are arranged on the transverse detector arm, and the plurality of detectors can be arranged in a centripetal manner, so that the detectors are arranged toward the radiation source and arranged in an arc. When the vehicle passes through the transverse detector arm, the detector can receive the radiation from the radiation source to form an image of the interior of the vehicle.

[0004] In the existing horizontal detector arm, in order to meet the requirement of centripetal arrangement of the detectors, multiple detectors are arranged in an arc shape, so that the thickness of the horizontal detector arm is relatively large, and vehicles, especially small vehicles, are difficult to pass through. Therefore, a large amount of civil engineering work is required at the installation site to form a ground trench for burying the horizontal detector arm and bury the horizontal detector arm underground.

[0005] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art and provide a vehicle detection system that is conducive to reducing or even eliminating civil engineering work.

[0007] Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

[0008] According to one aspect of the present invention, a vehicle detection system includes a horizontal detector arm, two vertical detector arms, a radiation source, a plurality of horizontal detectors and a plurality of vertical detectors. The horizontal detector arm can be arranged on the ground. The two vertical detector arms are arranged at both ends of the horizontal detector arm. The radiation source is located above the horizontal detector arm. The plurality of horizontal detectors are arranged in the horizontal detector arm and are laid out along the length direction of the horizontal detector arm to receive the rays emitted by the radiation source. The plurality of vertical detectors are symmetrically arranged on the two vertical detector arms, and each vertical detector is arranged toward the center point of the radiation source to receive the rays emitted by the radiation source.

[0009] According to one embodiment of the present invention, the horizontal detector arm is laid on the ground.

[0010] According to one embodiment of the present invention, the mid-vertical plane of the transverse detector arm passes through the center point of the radiation source.

[0011] According to one embodiment of the present invention, the perpendicular bisectors of the vertical detectors intersect at the center point of the radiation source.

[0012] According to one embodiment of the present invention, the transverse detector arm comprises a housing and a mounting plate. The housing is a tubular structure having a first end and a second end that are connected. The mounting plate is horizontally arranged in the housing and can be moved in or out along the length direction of the housing, and the transverse detector is arranged on the mounting plate.

[0013] According to an embodiment of the present invention, the transverse detector arm further comprises a first end cap and a second end cap, wherein the first end cap is detachably connected to the first end, and the second end cap is detachably connected to the second end.

[0014] According to one embodiment of the present invention, the horizontal detector arm further includes a first sealing ring and a second sealing ring. The first sealing ring is provided on the end surface of the first end or the first end cover, and is used to seal the first end cover with the first end. The second sealing ring is provided on the end surface of the second end or the second end cover, and is used to seal the second end cover with the second end.

[0015] According to an embodiment of the present invention, the housing comprises a lower shell and an upper shell both of which have U-shaped cross sections, and the upper shell is buckled with the lower shell and is sealedly connected.

[0016] According to an embodiment of the present invention, the housing is provided with a plurality of connecting ears extending outward, and each of the connecting ears is provided with a mounting hole.

[0017] According to one embodiment of the present invention, the mounting plate includes a first mounting plate and a second mounting plate. The first mounting plate is disposed in the housing and can be moved in or out from the first end. The second mounting plate is disposed in the housing and one end of the second mounting plate is directly opposite to one end of the first mounting plate and can be moved in or out from the second end. The first mounting plate and the second mounting plate are both provided with the horizontal detector.

[0018] According to one embodiment of the present invention, the first mounting plate includes a first base plate and a first support plate detachably connected to the first base plate; the second mounting plate includes a second base plate and a second support plate detachably connected to the second base plate; the first support plate and the second support plate are both provided with the horizontal detector.

[0019] According to one embodiment of the present invention, the mounting plate includes a first mounting plate and a second mounting plate. The first mounting plate is arranged in the housing and can be moved in or out from the first end, and the first end cover is connected to one end of the first mounting plate. The second mounting plate is arranged in the housing and one end is directly opposite to one end of the first mounting plate and can be moved in or out from the second end, and the second end cover is connected to one end of the second mounting plate. The first mounting plate and the second mounting plate are both provided with the horizontal detector.

[0020] It can be seen from the above technical solution that the present invention has at least one of the following advantages and positive effects:

[0021] In the vehicle detection system of the present invention, multiple transverse detectors can be laid flat in the transverse detector arm. Compared with the traditional centripetal arrangement, the space occupied in the vertical direction can be reduced, which is beneficial to reducing the thickness and weight of the transverse detector arm, thereby reducing or even eliminating the workload of civil engineering when burying the transverse detector arm.

[0022] The horizontal detectors in the horizontal detector arm are laid flat, and the vertical detectors are distributed in the vertical direction on the vertical detector arm, and are all arranged centripetally toward the center point of the radiation source, that is, a centripetal arrangement. Multiple horizontal detectors and multiple vertical detectors work together to form a clear image of the inspected vehicle and its interior, which can ensure the reliability of vehicle detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings.

[0024] Figure 1 is a schematic diagram of an implementation method of a vehicle detection system of the present invention;

[0025] Figure 2 It is a front view of an embodiment of a transverse detector arm of a vehicle detection system of the present invention.

[0026] Figure 3 yes Figure 2 Top view of the middle cross detector arm;

[0027] Figure 4 yes Figure 2 AA section view;

[0028] Figure 5 yes Figure 2 BB cross-sectional view;

[0029] Figure 6 yes Figure 4 Enlarged view of the middle C part;

[0030] Figure 7 yes Figure 4 Enlarged view of part D in the middle.

[0031] In the figure: 1, horizontal detector arm; 11, outer shell; 111, lower shell; 112, upper shell; 1121, connecting ear; 12, first mounting plate; 13, second mounting plate; 14, first end cover; 15, second end cover; 16, first sealing ring; 17, second sealing ring; 2, vertical detector arm; 3, radiation source; 4, horizontal detector; 5, vertical detector; 6, top beam; 7, joint; 8, vehicle. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0033] Although relative terms such as "above" and "below" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned over so that it is upside down, the component described as being "above" will become the component "below". Other relative terms such as "top" and "bottom" are also used to have similar meanings. When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0034] The terms "a", "an", "the" and "said" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusion and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second", etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0035] In this example implementation, a vehicle detection system is provided for detecting a vehicle 8. Figure 1 As shown, the vehicle detection system may include a horizontal detector arm 1 , a vertical detector arm 2 , a radiation source 3 , a horizontal detector 4 and a vertical detector 5 .

[0036] In the vehicle detection system of the present invention, multiple transverse detectors 4 are laid flat in the transverse detector arm 1, that is, the angles of the horizontal planes of all transverse detectors 4 are 0 without considering the installation error, that is, when the transverse detector arm 1 is installed horizontally, the angles between all transverse detectors 4 and the installation surface in the transverse detector arm 1 are 0. Therefore, the transverse detector arm 1 in the present invention is thin in the vertical direction, and even if it is laid on the ground surface, the vehicle to be inspected can easily pass through; in addition, a small amount of civil engineering work can be performed to dig a shallow trench, and the transverse detector arm 1 and related components can be buried flush with the ground surface or buried below the ground surface, so that the vehicle to be inspected can pass through without obstacles.

[0037] like Figure 2 As shown, in one embodiment, the horizontal detector arm 1 may include a housing 11 and a mounting plate, wherein:

[0038] The housing 11 may be a tubular structure with two ends connected, the two ends being a first end and a second end respectively, and the mounting plate may be accommodated in the housing 11. The cross-section of the housing 11 may be rectangular or circular, but is not limited thereto, and may also be a trapezoid or other shapes, and the cross-section is a cross-section perpendicular to the axial direction of the housing 11. The housing 11 may be partially embedded in the ground, or may be directly fixed on the ground, and the vehicle 8 may pass over it.

[0039] The housing 11 may be an integrated tubular structure or a spliced ​​tubular structure. Figure 2 and Figure 5As shown, the housing 11 may include a lower housing 111 and an upper housing 112. The cross section of the lower housing 111 may be U-shaped, and its opening is arranged upward. The cross section of the upper housing 112 may also be U-shaped, and the opening direction is opposite to that of the lower housing 111, so that it can be covered on the lower housing 111 and cooperate with the lower housing 111 to form the above-mentioned housing 11. At the same time, the upper housing 112 can be sealed and connected to the lower housing 111 by welding, clamping or bolting. In other embodiments of the present invention, the cross section of the lower housing 111 is U-shaped, and the upper housing 112 can be a flat plate structure. After the upper housing 112 is covered on the lower housing 111, it can also be surrounded by the lower housing 111 to form a tubular structure, that is, the housing 11. Of course, the lower housing 111 and the upper housing 112 can also be other structures, as long as they can be spliced ​​into the housing 11 of tubular structure, which will not be listed one by one here.

[0040] In addition, if Figure 3 As shown, the upper shell 112 may be provided with a connecting ear 1121, and the connecting ear 1121 may extend outward, that is, extend in a direction away from the upper shell 112. The number of the connecting ears 1121 may be multiple, and they are symmetrically distributed on both sides of the upper shell 112. At the same time, the connecting ear 1121 and the upper shell 112 may be an integrated structure, or they may be fixedly connected by welding, riveting, or screw connection. In addition, the connecting ear 1121 may be provided with a mounting hole, which may be a threaded hole or a bare hole, and the connecting ear 1121 may be fixedly connected to the above-mentioned ground through a threaded connector such as a foundation screw. Of course, the connecting ear 1121 may also be provided on the lower shell 111, as long as it can be used to fix the shell 11 to the ground.

[0041] like Figure 4 As shown, the mounting plate can be a flat structure, which can be arranged in the outer shell 11 and can be moved into or out of the outer shell 11 along the length direction of the outer shell 11. The horizontal detector 4 is laid flat on the mounting plate. For example, the horizontal detector 4 is a rectangular structure, and each horizontal detector 4 has a surface that is attached to the upper surface of the mounting plate and fixedly connected.

[0042] The number of the mounting plate may be one, which may be arranged in the housing 11 and may enter / exit the housing 11 from the first end or the second end of the housing 11, so as to facilitate the inspection and maintenance of the transverse detector 4 on the mounting plate. Figure 4 As shown, the number of mounting plates may also be two, including a first mounting plate 12 and a second mounting plate 13, wherein:

[0043] like Figure 5As shown, a plurality of transverse detectors 4 can be mounted on the first mounting plate 12, and can be moved into or out of the housing 11 from the first end of the housing 11. For example, the first mounting plate 12 may include a first base plate 121 and a first support plate 122, and the first base plate 121 may be a flat structure, or a U-shaped structure or other structures. The first support plate 122 may be disposed on the first base plate 121, and may be connected to the first base plate 121 in a detachable manner such as by snap-fitting or by screw connection. The transverse detector 4 may be laid flat on the first support plate 122, and may be fixed to the first support plate 122 by snap-fitting or by bolt connection. Of course, the first mounting plate 12 may also be just a flat plate.

[0044] The second mounting plate 13 may also be equipped with a plurality of transverse detectors 4, and may be moved into or out of the housing 11 from the second end of the housing 11. For example, the second mounting plate 13 may include a second bottom plate 131 and a second support plate 132 detachably connected to the second bottom plate 131. The second support plate 132 may also be provided with a plurality of transverse detectors 4. The specific structure of the second mounting plate 13 may refer to the first mounting plate 12, and will not be described in detail here. Of course, the second mounting plate 13 may also be a flat plate.

[0045] In addition, one end of the second mounting plate 13 may be directly opposite to one end of the first mounting plate 12 to prevent the first mounting plate 12 and the second mounting plate 13 from overlapping. And the lengths of the first mounting plate 12 and the second mounting plate 13 may be equal to or less than half of the longitudinal length of the housing 11, so that the housing 11 can accommodate the first mounting plate 12 and the second mounting plate 13 at the same time.

[0046] like Figure 4 As shown, in one embodiment, the transverse detector arm 1 may further include a first end cap 14 and a second end cap 15, wherein:

[0047] The first end cover 14 may be a plate-like structure, the size of which is limited to covering the first end, and may be sealed and connected to the first end of the housing 11 in a detachable manner such as snap-on or bolt connection, so as to cover the first end of the housing 11 and prevent moisture or debris from entering the housing 11 from the first end, thereby helping to protect the transverse detector 4 in the housing 11; when the transverse detector 4 needs to be inspected, the first end cover 14 may be separated from the first end to remove the first mounting plate 12 and the detector thereon.

[0048] The second end cap 15 can be detachably sealed and connected to the second end of the housing 11 to cover the second end of the housing 11 and prevent moisture or debris from entering the housing 11 from the second end. The structure and installation method of the second end cap 15 can refer to the first end cap 14 and the installation method of the first end cap 14 and the first end, which will not be described in detail here.

[0049] like Figures 5 to 7As shown, in one embodiment, the transverse detector arm 1 may further include a first sealing ring 16 and a second sealing ring 17, wherein:

[0050] like Figure 5 and Figure 6 As shown, the first sealing ring 16 may be an annular structure, which may be disposed on the end surface of the first end, and may be fixedly connected to the first end by bonding or clamping, etc., and the first end cover 14 may fit with the first sealing ring 16, so that the sealing effect between the first end cover 14 and the first end may be improved by the first sealing ring 16, further preventing debris or moisture from entering the housing 11. Of course, the first sealing ring 16 may also be disposed on the first end cover 14, as long as the first end cover 14 and the first end can be sealed.

[0051] like Figure 7 As shown, the second sealing ring 17 can be arranged on the end surface of the second end. The structure and installation method of the second sealing ring 17 can refer to the first sealing ring 16 and will not be described in detail here. Therefore, the second sealing ring 17 can improve the sealing effect between the second end cover 15 and the second end, and further prevent debris or moisture from entering the housing 11. Of course, the second sealing ring 17 can also be arranged on the second end cover 15, as long as the second end cover 15 and the second end can be sealed.

[0052] like Figure 1 As shown, in one embodiment, the number of vertical detector arms 2 can be two, and the two vertical detector arms 2 can be vertically arranged at both ends of the horizontal detector arm 1, so as to form a passage for the vehicle 8 to pass through. The two vertical detector arms 2 can be fixed to the upper surface of the horizontal detector arm 1 by welding, clamping or bolting, or can be fixed to the ground. The cross-section of each vertical detector arm 2 can be rectangular, circular or trapezoidal, etc., which are not listed here one by one.

[0053] like Figure 1 As shown, in one embodiment, the radiation source 3 may be an X-radiation source, a gamma radiation source or other radiation device that can emit radiation that can penetrate the vehicle 8. At the same time, the radiation source 3 may be arranged above the horizontal detector arm 1 and above the passage between the two vertical detector arms 2, and may emit radiation downward, and the two vertical detector arms 2 may be symmetrical about the radiation source 3, and the center point of the radiation source 3 may be located on the mid-vertical plane of the horizontal detector arm 1. In order to facilitate the installation of the radiation source 3, a top beam 6 parallel to the horizontal detector arm 1 may be set on the top of the two vertical detector arms 2, and the top beam 6 and the vertical detector arm 2 may be fixedly connected by welding or bolting, or may be an integrated structure, so as to form a gantry with the vertical detector arm 2. The radiation source 3 may be fixed to the middle of the top beam 6 by welding, clamping or bolting, and may emit radiation downward. Of course, in other embodiments of the present invention, the radiation source 3 may also be arranged above the passage by a special bracket.

[0054] like Figure 1 As shown, in one embodiment, the transverse detector 4 matches the radiation source 3 and can receive the radiation from the radiation source 3 to form a detection area, so as to detect the vehicle 8 entering the detection area and form an image of the interior of the vehicle 8. For example, if the radiation source 3 is an X-ray source, the transverse detector 4 is an X-ray detector; if the radiation source 3 is a γ-ray source, the transverse detector 4 is a γ-ray detector. The specific structure and working principle of the transverse detector 4 can refer to the existing detectors and will not be described in detail here.

[0055] There can be multiple transverse detectors 4, and the specific number is not specifically limited here. Multiple transverse detectors 4 are fixed to the mounting plate of the transverse detector arm 1 by welding, clamping or bolting. For example, multiple transverse detectors 4 can be respectively arranged on the first mounting plate 12 and the second mounting plate 13 and can be fixed by screws. When the first mounting plate 12 and the second mounting plate 13 are located in the outer shell 11, each transverse detector 4 can be laid flat along the length direction of the outer shell 11, that is, horizontally distributed without tilting. Compared with the centripetal distribution method, the laying method is conducive to reducing the thickness of the transverse detector arm 1, which can reduce or even avoid the civil engineering workload of installing the transverse detector arm 1. At the same time, each transverse detector 4 can form a detection area with the radiation source 3, and the detection area formed by each transverse detector 4 can form a continuous sub-detection surface, through which the passing vehicle 8 can be detected.

[0056] like Figure 1 As shown, in one embodiment, the type of the vertical detector 5 can refer to the horizontal detector 4 mentioned above, which can also receive the rays of the radiation source 3, and will not be described in detail here. The number of vertical detectors 5 can be multiple, and the multiple vertical detectors 5 can be respectively arranged on the two vertical detector arms 2 and can be distributed in the vertical direction. Each vertical detector 5 can be fixedly connected to the vertical detector arm 2 by means of clamping, welding or bolt connection, and the vertical detectors 5 on the two vertical detector arms 2 can be symmetrically arranged.

[0057] Each vertical detector 5 is arranged toward the center point of the radiation source 3, that is, arranged centripetally, and the perpendicular midline of each vertical detector 5 can intersect at the center point of the radiation source 3, so as to receive the rays emitted by the radiation source 3. Each vertical detector 5 can form a detection area with the radiation source 3, and each detection area formed by the vertical detector 5 of the same vertical detector arm 2 can form a continuous sub-detection surface; the sub-detection surfaces formed by the vertical detectors 5 of the two vertical detector arms 2 can be located on both sides of the sub-detection surface formed by the horizontal detector 4, and together form a continuous detection surface, so that the vehicle 8 passing through the channel can be detected through the detection surface, so as to obtain an image of the interior of the vehicle 8. Since the vertical detectors 5 are all arranged centripetally toward the center point of the radiation source 3, the vertical detectors 5 are inclined relative to the horizontal plane, so that the area occupied by the vertical detectors 5 in the horizontal direction is reduced, which is conducive to reducing the thickness of the vertical detector arm 2, so as to save materials and reduce costs. At the same time, since the continuous detection surface can avoid the existence of detection blind areas that cannot be scanned, the reliability of the detection results is improved.

[0058] like Figures 2 to 4 As shown, in one embodiment, the above-mentioned vehicle detection system may further include a connector 7 , which may be disposed on the first end cover 14 or the second end cover 15 so as to lead out the leads of the horizontal detector 4 and the vertical detector 5 .

[0059] In one embodiment, the vehicle detection system may further include a control device and a display device, and both the horizontal detector 4 and the vertical detector 5 may be connected to the control device so that the collected signals are processed by the control device and the display device is controlled to display the image inside the vehicle 8. Of course, the vehicle detection system may also include other devices, which may be specifically referred to the existing vehicle detection system and will not be described in detail here.

[0060] In the vehicle detection system of the embodiment of the present invention, the horizontal detectors 4 in the horizontal detector arm 1 are laid flat, and the vertical detectors 5 are distributed in the vertical direction on the vertical detector arm 2, and are all arranged toward the center point of the radiation source 3, that is, they are arranged centripetally; during detection, the vehicle 8 can pass through the horizontal detector arm 1 and the channel between the two vertical detector arms 2, and the multiple horizontal detectors 4 and the multiple vertical detectors 5 work together to form a clear image of the inspected vehicle 8 and its interior, which can ensure the reliability of the detection of the vehicle 8. The multiple horizontal detectors 4 can be laid flat on the horizontal detector arm 1 along the length direction of the horizontal detector arm 1. Compared with the centripetal distribution method, the space occupied in the vertical direction can be reduced, which is conducive to reducing the thickness and weight of the horizontal detector arm 1, thereby reducing or even eliminating the civil engineering workload when burying the horizontal detector arm 1.

[0061] It should be understood that the present invention is not limited in its application to the detailed structure and arrangement of the components proposed in this specification. The present invention can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned variations and modifications fall within the scope of the present invention. It should be understood that the present invention disclosed and defined in this specification extends to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the present invention. The embodiments described in this specification illustrate the best mode known for implementing the present invention and will enable those skilled in the art to utilize the present invention.

Claims

1. A vehicle detection system, characterized in that: include: A horizontal detector arm, which can be located on the ground; Two vertical detector arms, arranged at two ends of the horizontal detector arm; a radiation source, located above the horizontal detector arm; A plurality of transverse detectors are arranged in the transverse detector arm and laid out along the length direction of the transverse detector arm, for receiving the radiation emitted by the radiation source; wherein the angle between the plurality of transverse detectors and the mounting surface in the transverse detector arm is 0; A plurality of vertical detectors are symmetrically arranged on the two vertical detector arms, and each of the vertical detectors is arranged toward the center point of the radiation source to receive the rays emitted by the radiation source.

2. The vehicle detection system according to claim 1, characterized in that: The horizontal detector arm is laid on the ground.

3. The vehicle detection system according to claim 1, characterized in that: The mid-vertical plane of the transverse detector arm passes through the center point of the radiation source.

4. The vehicle detection system according to claim 1, 2 or 3, characterized in that: The perpendicular bisectors of the vertical detectors intersect at the center point of the radiation source.

5. The vehicle detection system according to claim 1, characterized in that: The horizontal detector arm comprises: a housing, the housing being a tubular structure and having a first end and a second end; The mounting plate is horizontally arranged in the shell and can be moved in or out along the length direction of the shell. The transverse detector is arranged on the mounting plate.

6. The vehicle detection system according to claim 5, characterized in that: The horizontal detector arm also includes: a first end cap detachably connected to the first end; A second end cover is detachably connected to the second end.

7. The vehicle detection system according to claim 6, characterized in that: The horizontal detector arm also includes: A first sealing ring, provided on the end surface of the first end or the first end cover, and used to seal the first end cover to the first end; A second sealing ring is arranged on the end surface of the second end or the second end cover, and is used to seal the second end cover to the second end.

8. The vehicle detection system according to claim 5, characterized in that: The housing comprises a lower shell and an upper shell both of which have U-shaped cross sections. The upper shell is buckled relative to the lower shell and is sealed and connected.

9. The vehicle detection system according to claim 5, characterized in that: The shell is provided with a plurality of connecting ears extending outwards, and each of the connecting ears is provided with a mounting hole.

10. The vehicle detection system according to any one of claims 5 to 9, characterized in that: The mounting plate comprises: A first mounting plate, disposed in the housing and capable of being moved in or out from the first end; A second mounting plate is disposed in the housing and has one end facing one end of the first mounting plate and can be moved in or out from the second end; The first mounting plate and the second mounting plate are both provided with the transverse detector.

11. The vehicle detection system according to claim 10, characterized in that: The first mounting plate includes a first base plate and a first support plate detachably connected to the first base plate; the second mounting plate includes a second base plate and a second support plate detachably connected to the second base plate; the first support plate and the second support plate are both provided with the horizontal detector.

12. The vehicle detection system according to claim 6 or 7, characterized in that: The mounting plate comprises: A first mounting plate is disposed in the housing and can be moved in or out from the first end, and the first end cover is connected to one end of the first mounting plate; A second mounting plate is disposed in the housing and has one end facing one end of the first mounting plate and can be moved in or out from the second end, and the second end cover is connected to one end of the second mounting plate; The first mounting plate and the second mounting plate are both provided with the transverse detector.

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