Security inspection system

Abstract

The application provides a security inspection system, which comprises a movable carrier, a bearing device detachably arranged on the movable carrier and arranged on one side of the movable carrier in a first direction after being separated from the movable carrier, so that the movable carrier has a detection channel for a subject to pass through, a scanning system for scanning and detecting the subject passing through the detection channel, and the scanning system comprises a first scanning device, the first scanning device comprises a first ray source and a first transmission detector matched with each other, one of the first ray source and the first transmission detector is arranged on the movable carrier, and the other is arranged on the bearing device, and a connecting device for connecting the movable carrier and the bearing device arranged on one side of the movable carrier in the first direction after the bearing device is separated from the movable carrier, so that the first ray source and the first transmission detector are coplanar with each other. In this way, the detection accuracy can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of security inspection, in particular to a security inspection system. BACKGROUND

[0002] Some security inspection systems, one of the ray source and the transmission detector is integrated on a movable carrier, and the other is integrated on a carrying device. During transportation, the carrying device is located on the movable carrier and moves together with the movable carrier. After arriving at the detection site, the carrying device leaves the movable carrier and moves to one side of the first direction of the movable carrier, so that the transmission detector is opposite to the ray source, and the scanned object is scanned to obtain a scan image, and then it is determined whether there is contraband on the scanned object.

[0003] In the related art, the relative position relationship between the carrying device and the movable carrier after the carrying device leaves the movable carrier completely depends on the positioning of the carrying device and the movable carrier. In this case, it is difficult to accurately position the carrying device and the movable carrier, which easily leads to the fact that the ray source and the transmission detector are not coplanar, thereby affecting the accuracy of the inspection result. SUMMARY

[0004] One of the technical problems to be solved by the present application is to improve the detection accuracy of the security inspection system.

[0005] In order to solve the above technical problem, the present application provides a security inspection system, which comprises:

[0006] a movable carrier;

[0007] a carrying device, which is detachably arranged on the movable carrier and is arranged on one side of the first direction of the movable carrier after being separated from the movable carrier, so that the movable carrier has a detection channel for the scanned object to pass through;

[0008] a scanning system for scanning and detecting the scanned object passing through the detection channel, and comprising a first scanning device, the first scanning device comprising a first ray source and a first transmission detector cooperating with each other, one of the first ray source and the first transmission detector being arranged on the movable carrier, and the other being arranged on the carrying device; and

[0009] a connecting device for connecting the movable carrier and the carrying device arranged on one side of the first direction of the movable carrier after the carrying device is separated from the movable carrier, so that the first ray source and the first transmission detector are coplanar with each other.

[0010] In some embodiments, the connecting device comprises a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are arranged side by side and are connected with the carrying device and the movable carrier.

[0011] In some embodiments, the first connector and the second connector are telescopic.

[0012] In some embodiments, the first connector and / or the second connector comprises an automatic telescopic connector or a manual telescopic connector.

[0013] In some embodiments, the first connector and / or the second connector comprises a hydraulic rod or a threaded telescopic rod.

[0014] In some embodiments, the connecting device comprises a third connector connected between the first connector and the second connector.

[0015] In some embodiments, the third connector comprises a crossbar connected between the first connector and the second connector, such that the connecting device is in the shape of H.

[0016] In some embodiments, the connecting device is detachably arranged on the carrying device or the movable carrier.

[0017] In some embodiments, the first transmission detector comprises at least one of a first transmission detection part and a second transmission detection part, the first transmission detection part is arranged on the other side of the object opposite to the first radiation source during the scanning detection of the object by the first scanning device, and the second transmission detection part is arranged below the object during the scanning detection of the object by the first scanning device.

[0018] In some embodiments, the first transmission detection part is rotatably arranged, such that the first transmission detection part has an open state and a folded state, and in the open state, the first transmission detection part is arranged on the other side of the object opposite to the first radiation source; and / or, the length of the first transmission detection part is adjustable.

[0019] In some embodiments, the first transmission detection part comprises at least two detection segments, the at least two detection segments are telescopically or foldably connected, such that the length of the first transmission detection part is adjustable.

[0020] In some embodiments, the carrying device comprises a base and a ramp, one of the first radiation source and the first transmission detector arranged on the base, the ramp is arranged on the edge of the base along the second direction of the movable carrier, guiding the object to go up and down the base, and the second direction is perpendicular to the first direction.

[0021] In some embodiments, the ramp is rotatably arranged on the base, such that the ramp has an open state and a folded state.

[0022] In some embodiments, the base is provided with a ramp on each side along the second direction of the movable carrier; and / or, the base is provided with at least two ramps on one side along the second direction of the movable carrier.

[0023] In some embodiments, the bearing device is provided with a supporting leg, which is extended to support the bearing device when the bearing device needs to be separated from the movable carrier, and / or the bearing device is provided with a supporting member, the bottom of which is provided with wheels for contacting the ground.

[0024] In some embodiments, the supporting member is detachably connected with the bearing device.

[0025] In some embodiments, the first scanning device comprises a first backscatter detector matched with the first ray source, and the first backscatter detector and the first ray source are arranged on the same one of the movable carrier and the bearing device.

[0026] In some embodiments, the scanning system comprises a second scanning device, the second scanning device comprises a second ray source, and further comprises at least one of a second transmission detector and a second backscatter detector matched with the second ray source, the second ray source and the first transmission detector are arranged on the same one of the movable carrier and the bearing device, the second transmission detector and the first ray source are arranged on the same one of the movable carrier and the bearing device, and the second backscatter detector and the first transmission detector are arranged on the same one of the movable carrier and the bearing device; and / or, the scanning system comprises a third scanning device arranged on the bearing device, and comprising a third ray source and a third backscatter detector matched with each other, the third ray source and the third backscatter detector are located below the object to be detected during the scanning and detection of the object to be detected by the third scanning device.

[0027] In some embodiments, the security inspection system comprises two bearing devices and two scanning systems, the two bearing devices are arranged on opposite sides of the movable carrier in the first direction after being separated from the movable carrier, so that the opposite sides of the movable carrier in the first direction both have detection channels, the two scanning systems correspond to the two bearing devices one by one, and at least one of the two bearing devices is connected with the movable carrier through a connecting device after being separated from the movable carrier.

[0028] In some embodiments, the two bearing devices are both connected with the movable carrier through connecting devices after being separated from the movable carrier, the two connecting devices connected with the two bearing devices are opposite to each other or staggered along a second direction perpendicular to the first direction of the movable carrier.

[0029] The added connecting device can connect the bearing device and the movable carrier after the bearing device leaves the movable carrier, realize the physical connection between the bearing device and the movable carrier, and make the first ray source and the first transmission detector coplanar, so as to effectively improve the positioning accuracy of the bearing device and the movable carrier and improve the detection accuracy.

[0030] Other features and advantages of the present application will become apparent from the following detailed description of illustrative embodiments thereof, which proceeds with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings required to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0032] Figure 1 It is a schematic diagram of the structure of the imaging system in the first embodiment of the present application in the process of transition transportation.

[0033] Figure 2 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application when the support legs are grounded.

[0034] Figure 3 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application when the bearing device leaves the movable carrier.

[0035] Figure 4 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application in the detection process.

[0036] Figure 5 It is a schematic diagram of the layout of the scanning system of the imaging system in the first embodiment of the present application.

[0037] Figure 6 It is a schematic diagram of the structure of the towing vehicle in the first embodiment of the present application.

[0038] Figure 7 It is a schematic diagram of the combination of the bearing device, the first transmission detector and the support in the first embodiment of the present application.

[0039] Figure 8 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application when the connecting device is connected to the towing vehicle.

[0040] Figure 9 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application when the connecting device is connected to the towing vehicle and the bearing device.

[0041] Figure 10 It is a schematic diagram of the state of the imaging system in the first embodiment of the present application when the first transmission detector is opened.

[0042] Figure 11 It is a schematic diagram of the state of the imaging system in the second embodiment of the present application in the detection process.

[0043] Figure 12 Fig. 1 is a schematic view of the layout of the scanning system of the imaging system in the third embodiment of the present application.

[0044] Figure 13 Fig. 2 is a schematic view of the state of the imaging system in the detection process in the fourth embodiment of the present application.

[0045] Figure 14 Fig. 3 is a schematic view of the layout of the third scanning device in the base in the fourth embodiment of the present application.

[0046] Figure 15 Fig. 4 is a schematic view of the layout of the scanning system of the imaging system in the fifth embodiment of the present application.

[0047] BRIEF DESCRIPTION OF THE DRAWINGS

[0048] 10, security inspection system;

[0049] 1, movable carrier; 11, tractor; 12, semi-trailer;

[0050] 2, bearing device; 21, base; 22, ramp; 23, leg; 24, support; 25, wheel; 26, detection passage; 27, baffle;

[0051] 3, scanning system;

[0052] 4, first scanning device; 41, first ray source; 42, first transmission detector; 43, first transmission detection part; 44, detection section; 45, second transmission detection part; 46, first backscatter detector;

[0053] 5, second scanning device; 51, second ray source; 52, second transmission detector; 53, second backscatter detector;

[0054] 6, third scanning device; 61, third ray source; 62, third backscatter detector;

[0055] 7, shielding cabin;

[0056] 8, connecting device; 81, first connecting piece; 82, second connecting piece; 83, third connecting piece; 84, crossbar; 85, connecting rod; 86, automatic telescopic piece; 87, manual telescopic piece; 88, hydraulic rod; 89, threaded telescopic rod;

[0057] W, first direction; L, second direction. DETAILED DESCRIPTION

[0058] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The following description of at least one example embodiment is merely illustrative in nature and is in no way limiting on the application or its applications or uses. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0059] The techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate.

[0060] In the description of the present application, it should be understood that the use of the words "first", "second", and the like, to describe components is merely intended to distinguish like components from one another, and does not limit the scope of the present application, unless otherwise stated.

[0061] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0062] A security inspection system is a device for scanning and inspecting a movable carrier, a container, and an airplane, etc. as an object to be inspected, to obtain an image in customs and airports, etc.

[0063] In order to improve the flexibility of work, some security inspection systems are configured to be movable. For example, some security inspection systems include a movable carrier, a carrying device, a radiation source, and a transmission detector, the movable carrier can travel between different locations, the carrying device is arranged on the movable carrier, one of the radiation source and the transmission detector is arranged on the movable carrier, and the other is arranged on the carrying device, so that the radiation source, the transmission detector, and the carrying device can all move together with the movable carrier, and are flexibly transferred between different locations. In addition, the carrying device can also be separated from the movable carrier, so that after arriving at the detection site, the carrying device can leave the movable carrier and reach one side of the first direction of the movable carrier, and be positioned opposite the radiation source, so that the transmission detector can receive the radiation emitted by the radiation source after passing through the object to be inspected, and finally obtain a scanning image as a basis for judging whether there is contraband on the object to be inspected, to realize the security inspection of the object to be inspected.

[0064] For the above-mentioned mobile security inspection system, how to quickly and accurately position the separated carrying device and the movable carrier after arriving at the detection site is a difficult problem.

[0065] In the related art, after the carrying device is separated from the movable carrier, there is no longer any physical connection between the carrying device and the movable carrier, and the relative position relationship between the carrying device and the movable carrier completely relies on the positioning of the carrying device and the movable carrier. In this case, not only is the positioning time-consuming and low in accuracy, but also the positioning of the carrying device and the movable carrier is prone to inaccuracy, and the phenomenon of the radiation source and the transmission detector not being coplanar, which affects the detection accuracy. For example, in some schemes, the movable carrier and the carrying device separated from the movable carrier are moved by themselves, and an optical sensor arranged on the carrying device is used to detect the position of the tire of the movable carrier to determine whether the carrying device has reached the target position. In this case, since the tire may be skewed and the tire pressure may be inaccurate, even if the tire is detected, it cannot accurately indicate that the movable carrier and the carrying device have indeed reached the position, and it is extremely likely that the movable carrier and the carrying device have not reached the position, and the radiation source and the transmission detector are not coplanar, resulting in inaccurate radiation detection results. In addition, since other detection devices (such as the optical sensor mentioned above) need to be arranged, the control difficulty and cost are also increased.

[0066] In view of the above, the structure of the safety inspection system is improved in the present application.

[0067] Figures 1-15 The structure of the safety inspection system in the present application is exemplarily shown.

[0068] Referring to Figures 1-15 The safety inspection system 10 provided by the present application includes a movable carrier 1, a carrying device 2, a scanning system 3, and a connecting device 8. The carrying device 2 is detachably arranged on the movable carrier 1 and is arranged on one side of the movable carrier 1 in a first direction W after being separated from the movable carrier 1, so that the movable carrier 1 has a detection channel 26 on one side for the inspected object to pass through. The scanning system 3 is used for scanning and detecting the inspected object passing through the detection channel 26 and includes a first scanning device 4. The first scanning device 4 includes a first radiation source 41 and a first transmission detector 42 cooperating with each other, one of the first radiation source 41 and the first transmission detector 42 is arranged on the movable carrier 1, and the other is arranged on the carrying device 2. The connecting device 8 is used to connect the movable carrier 1 and the carrying device 2 arranged on one side of the movable carrier 1 in the first direction W after the carrying device 2 is separated from the movable carrier 1, so that the first radiation source 41 and the first transmission detector 42 are coplanar with each other.

[0069] In the above scheme, since the connecting device 8 can connect the carrying device 2 and the movable carrier 1 after the carrying device 2 leaves the movable carrier 1, the physical connection between the carrying device 2 and the movable carrier 1 is realized, so that the first ray source 41 is coplanar with the first transmission detector 42, specifically, the beam plane (for example, the fan beam beam plane or the pencil beam beam plane) of the first ray source 41 is coplanar with the center line of the detection plane of the first transmission detector 42, so that the positioning accuracy of the carrying device 2 and the movable carrier 1 can be effectively improved, and the detection accuracy is prevented from being affected due to the inaccurate positioning of the carrying device 2 and the movable carrier 1. Moreover, in such a case, the rays passing through the object to be detected can be detected even if only one row of detector crystals is included in the first transmission detector 42, so it is also beneficial to reduce the width of the first transmission detector 42, so that a transmission detector with smaller width can be used, and the cost is reduced.

[0070] Moreover, based on the connecting device 8, only the connecting position capable of making the first ray source 41 and the first transmission detector 42 coplanar needs to be determined in advance, and then the connecting device 8 is directly connected to the predetermined connecting position each time it is used, so that the rapid and accurate arrangement of the security inspection system 10 in the detection field can be completed, and the coplanar adjustment is not needed each time, so it is also beneficial to simplify the operation, save time, improve the field arrangement efficiency of the security inspection system 10, and realize the rapid deployment of the security inspection system 10.

[0071] It can be seen that by arranging the connecting device 8, the movable carrier 1 and the carrying device 2 arranged on the first direction W side of the movable carrier 1 are connected, which is beneficial to improve the detection accuracy and the field arrangement efficiency of the security inspection system 10.

[0072] As an example of the connecting device 8, refer to Figures 1-15 In some embodiments, the connecting device 8 includes a first connecting piece 81 and a second connecting piece 82, the first connecting piece 81 and the second connecting piece 82 are arranged side by side and are connected to the carrying device 2 and the movable carrier 1. In this way, based on a relatively simple structure, accurate physical connection between the movable carrier 1 and the carrying device 2 arranged on the first direction W side of the movable carrier 1 can be realized, so that the first ray source 41 and the first transmission detector 42 are accurately coplanar.

[0073] The structures of the first connecting member 81 and the second connecting member 82 can be various. For example, in some embodiments, neither the first connecting member 81 nor the second connecting member 82 is telescopic. For another example, in some other embodiments, the first connecting member 81 and the second connecting member 82 are telescopic. In this case, the connecting device 8 not only can physically connect the movable carrier 1 and the bearing device 2 arranged on the side of the movable carrier 1 in the first direction W so that the first ray source 41 and the first transmission detector 42 are coplanar, but also can flexibly adjust the distance between the movable carrier 1 and the bearing device 2 in the first direction W to meet different detection requirements. For example, by making the first connecting member 81 and the second connecting member 82 telescopic to change the distance between the movable carrier 1 and the bearing device 2, the detection requirements of different-width detection objects can be flexibly met, and different-width detection objects can smoothly pass through and obtain images more in line with requirements.

[0074] When the first connecting member 81 and the second connecting member 82 are telescopic, referring to Figure 12 and Figure 15 , the first connecting member 81 and / or the second connecting member 82 can include an automatic telescopic member 86 (for example, a hydraulic rod 88) or a manual telescopic member 87 (for example, a threaded telescopic rod 89) to facilitate the telescopic of the first connecting member 81 and the second connecting member 82, so that the detection requirements of different-width detection objects can be flexibly met by changing the lengths of the first connecting member 81 and the second connecting member 82.

[0075] Referring to Figure 4 and Figure 5 , in some embodiments, the connecting device 8 not only includes the first connecting member 81 and the second connecting member 82, but also includes a third connecting member 83 connected between the first connecting member 81 and the second connecting member 82, which is conducive to further improving the structural stability of the connecting device 8 so that the connecting device 8 can more accurately make the first ray source 41 and the first transmission detector 42 coplanar.

[0076] As an example of the third connecting member 83, referring to Figure 4 and Figure 5 , in some embodiments, the third connecting member 83 includes a cross rod 84 connected between the first connecting member 81 and the second connecting member 82, so that the connecting device 8 is in the shape of H. In this case, the connecting device 8 is simple in structure and high in stability. Of course, the structure of the third connecting member 83 is not limited to this. For example, in some other embodiments, the third connecting member 83 includes two rods crossing each other, which can further improve the structural stability of the connecting device 8.

[0077] In the foregoing embodiments, the connecting device 8 can be provided on the carrying device 2 or the movable carrier 1, so that the connecting device 8 can move together with the movable carrier 1 during the transportation between the scenes, and is convenient to take and not easy to lose. Moreover, in some embodiments, the connecting device 8 is detachably provided on the carrying device 2 or the movable carrier 1, so that the connecting device 8 can be placed on the carrying device 2 or the movable carrier 1 during the transportation between the scenes, and can be taken off to connect the carrying device 2 and the movable carrier 1 after reaching the detection site. Alternatively, in other embodiments, the connecting device 8 can be non-detachably provided on the carrying device 2 or the movable carrier 1, which is particularly suitable for the case where the connecting device 8 is telescopic, because when the connecting device 8 is telescopic, the connecting device 8 can be retracted to a state that does not affect the transportation during the transportation between the scenes, and can be extended to connect the carrying device 2 and the movable carrier 1 when the carrying device 2 and the movable carrier 1 need to be connected after reaching the detection site, so that the connecting device 8 does not need to be taken off during the whole process, and the operation is simple.

[0078] The connecting manner of the connecting device 8 and the movable carrier 1 and the carrying device 2 can be various. For example, in some embodiments, the movable carrier 1 and the carrying device 2 are provided with connecting holes, and fasteners pass through the connecting holes of the connecting device 8 and the movable carrier 1 and the carrying device 2 to realize the connection of the connecting device 8 and the movable carrier 1 and the carrying device 2. Moreover, in some embodiments, the movable carrier 1 and / or the carrying device 2 are further provided with a sliding groove to guide the connecting device 8 to smoothly reach the connecting hole on the movable carrier 1 and / or the carrying device 2 for connection, further reducing the connection difficulty and improving the connection efficiency. For example, in some embodiments, the movable carrier 1 is provided with a sliding groove extending along the second direction L (the second direction L is perpendicular to the first direction W), and the sliding groove is provided with a recess, and the connecting hole on the movable carrier 1 is arranged in the recess, so that when the connecting device 8 is connected to the movable carrier 1, the connecting device 8 can be first placed in the sliding groove, and then the connecting device 8 is slid or the movable carrier 1 is moved to make the connecting device 8 slide along the sliding groove to the recess, the hole on the connecting device 8 is aligned with the hole in the recess, and then the fastener passes through the connecting hole on the movable carrier 1 and the hole on the connecting device 8 to complete the connection of the connecting device 8 and the movable carrier 1. In the corresponding process, since the connecting device 8 can automatically find the position of the connecting hole on the movable carrier 1 under the guidance of the sliding groove, manual repeated adjustment is not needed, so the difficulty is lower and the efficiency is higher.

[0079] As an example of the first transmission detector 42 in the foregoing embodiments, refer to Figures 1-11In some embodiments, the first transmission detector 42 comprises at least one of a first transmission detection part 43 and a second transmission detection part 45, the first transmission detection part 43 is located at the other side of the object opposite to the first radiation source 41 during the scanning detection of the object by the first scanning device 4, and the second transmission detection part 45 is located below the object during the scanning detection of the object by the first scanning device 4.

[0080] The first transmission detection part 43 can cooperate with the first radiation source 41 to obtain the transmission radiation through the object from the side. The second transmission detection part 45 can also cooperate with the first radiation source 41 to obtain the transmission radiation through the object from the bottom. When the first transmission detector 42 comprises both the first transmission detection part 43 and the second transmission detection part 45, the transmission radiation through the object can be obtained from the side and from the bottom at the same time, which facilitates more comprehensive examination of the object.

[0081] When the first transmission detector 42 comprises the first transmission detection part 43, refer to Figures 1-11 In some embodiments, the first transmission detection part 43 is rotatably arranged, so that the first transmission detection part 43 has an open state and a stowed state. When in the open state, the first transmission detection part 43 is located at the other side of the object opposite to the first radiation source 41. In this way, when detection is not needed, the first transmission detection part 43 can be kept in the stowed state to facilitate transportation, and when detection is needed, the first transmission detection part 43 can be rotated to switch from the stowed state to the open state to cooperate with the first radiation source 41 for transmission scanning. It can be seen that the first transmission detection part 43 is arranged to be rotatable, which can flexibly meet different requirements in the transportation and detection processes.

[0082] When the first transmission detector 42 comprises the first transmission detection part 43, refer to Figures 1-10 In some embodiments, the length of the first transmission detection part 43 is adjustable, for example, refer to Figure 10 In some embodiments, the first transmission detection part 43 comprises at least two detection segments 44, and the at least two detection segments 44 are connected in an extendable or foldable manner, so that the length of the first transmission detection part 43 is adjustable. In this way, the first transmission detection part 43 can be adjusted to different lengths for different heights of the object, flexibly meeting the detection needs of objects of different heights. Moreover, the length of the first transmission detection part 43 being adjustable is also beneficial to reducing the length during transportation, facilitating transportation between scenes. In addition, in some embodiments, at least some of the detection segments 44 above the first transmission detection part 43 can be folded to be perpendicular to other vertically placed detection segments 44 to form an L-shaped structure during detection.

[0083] As an example of the carrying device 2 in the foregoing embodiments, refer toFigures 4-10 In some embodiments, the support device 2 includes a base 21 and a ramp 22. One of the first X-ray source 41 and the first transmission detector 42, which is disposed on the support device 2, is disposed on the base 21. The ramp 22 is disposed on the edge of the base 21 along the second direction L of the movable carrier 1, guiding the object to be inspected up and down the base 21. Thus, the base 21 serves as a detection channel 26 during the inspection process. Because the base 21 is provided with the ramp 22 to guide the object to be inspected up and down the base 21, the object to be inspected can easily reach or leave the base 21, which is beneficial to improving inspection efficiency.

[0084] Among them, see Figure 4 In some embodiments, the ramp 22 is rotatably mounted on the base 21, allowing it to have both an open and a retracted state. This way, when inspection is not required, the ramp 22 can remain in the retracted state for convenient transportation. When inspection is needed, the ramp 22 is rotated to switch from the retracted to the open state, guiding the object to be inspected up and down the base 21. Therefore, making the ramp 22 rotatable flexibly meets the different needs of transportation and inspection processes.

[0085] See also Figure 4 In some embodiments, ramps 22 are provided on both opposite sides of the base 21 along the second direction L of the movable carrier 1; and / or, at least two ramps 22 are provided on one side of the base 21 along the second direction L of the movable carrier 1. In this way, the base 21 is provided with more than one ramp 22, which facilitates smoother guidance of the object being inspected up and down.

[0086] Back Figure 2 and Figure 3 In some embodiments, the supporting device 2 is provided with support legs 23, which extend to support the ground and raise the supporting device 2 when it needs to be separated from the movable carrier 1. See also... Figure 2 and Figure 3 When the supporting device 2 needs to be separated from the movable carrier 1, the outriggers 23 can extend to support the ground, raising the supporting device 2. Then, the movable carrier 1 can be driven away, achieving separation of the supporting device 2 from the movable carrier 1, which is simple and convenient. It is evident that the outriggers 23 enable the supporting device 2 to have a self-loading and unloading function, which is beneficial for further improving the on-site deployment efficiency of the safety inspection system 10 and enabling faster on-site deployment of the safety inspection system 10.

[0087] Additionally, see Figure 7In some embodiments, the bearing device 2 is provided with a support 24, and the bottom of the support 24 is provided with wheels 25 for contacting the ground. Based on this, when the bearing device 2 is separated from the movable carrier 1 and needs to reach a target position, the support 24 can be used to support the bearing device 2, and the wheels 25 can be grounded to reduce the moving resistance of the bearing device 2, so that the bearing device 2 can be pushed to quickly reach the target position, which is also conducive to further improving the on-site arrangement efficiency of the security inspection system 10.

[0088] Specifically, referring to Figure 9 and Figure 10 In some embodiments, the support 24 is detachably connected with the bearing device 2. In this way, the support 24 can only support the bearing device 2 before the bearing device 2 leaves the movable carrier 1 and is connected with the movable carrier 1 by the connecting device 8, and after the bearing device 2 is connected with the movable carrier 1 by the connecting device 8, the support 24 can be detached to enable the bearing device 2 to fall to the ground, realizing a more stable detection process.

[0089] Returning to Figure 5 As an example of the first scanning device 4 in the foregoing embodiments, the first scanning device 4 not only includes the first ray source 41 and the first transmission detector 42, but also includes a first backscatter detector 46 cooperating with the first ray source 41, and the first backscatter detector 46 and the first ray source 41 are arranged on the same one of the vehicle 1 and the bearing device 2. In this way, the first scanning device 4 can not only perform transmission scanning on the inspected object, but also perform backscatter scanning on the inspected object, which is conducive to further improving the detection accuracy and obtaining more comprehensive and reliable detection results. At this time, the first ray source 41 is a ray source capable of emitting rays for backscatter scanning of the inspected object. The first backscatter detector 46 can be provided with a slit for the rays of the first ray source 41 to pass through.

[0090] In addition, as a further improvement of the foregoing embodiments, referring to Figures 12-14 In some embodiments, the scanning system 3 not only includes the first scanning device 4, but also includes at least one of the second scanning device 5 and the third scanning device 6.

[0091] Among them, Figure 12 The second scanning device 5 is exemplarily shown. Referring to Figure 12In some embodiments, the second scanning device 5 comprises a second ray source 51, and further comprises at least one of a second transmission detector 52 and a second backscatter detector 53 cooperating with the second ray source 51, the second ray source 51 being arranged on the same one of the movable carrier 1 and the bearing device 2 as the first transmission detector 42, the second transmission detector 52 being arranged on the same one of the movable carrier 1 and the bearing device 2 as the first ray source 41, and the second backscatter detector 53 being arranged on the same one of the movable carrier 1 and the bearing device 2 as the first transmission detector 42. In this way, the second ray source 51 and the first ray source 41 are arranged on two sides of the same detection channel 26, and the second ray source 51 can cooperate with the second transmission detector 52 and the second backscatter detector 53 respectively to perform transmission scanning and backscatter scanning on the other side of the subject, so that both sides of the subject can be scanned by transmission and backscatter scanning, and a more comprehensive and accurate detection result can be obtained.

[0092] Figure 13 and Figure 14 The third scanning device 6 is exemplarily shown. Referring to Figure 13 and Figure 14 In some embodiments, the third scanning device 6 is arranged on the bearing device 2 and comprises a third ray source 61 and a third backscatter detector 62 cooperating with each other, and the third ray source 61 and the third backscatter detector 62 are located below the subject during scanning and detection of the subject by the third scanning device 6. In this way, the third scanning device 6 can perform backscatter scanning on the subject from a bottom perspective, and a more comprehensive and accurate detection result can be obtained.

[0093] It should be noted that when the scanning system 3 comprises the first scanning device 4, the second scanning device 5 and the third scanning device 6 simultaneously, the first scanning device 4, the second scanning device 5 and the third scanning device 6 can be sequentially scanned in time sequence, so as to avoid signal crosstalk to the first backscatter detector 46, the second backscatter detector 53 and the third backscatter detector 62. In addition, the first scanning device 4, the second scanning device 5 and the third scanning device 6 can be arranged such that the ray beam flow planes of the first ray source 41, the second ray source 51 and the third ray source 61 are not coplanar.

[0094] In the foregoing embodiments, the number of bearing devices 2 is not limited and can be one, two or more. For example, referring to Figure 15In some embodiments, the security inspection system 10 includes two bearing devices 2 and two scanning systems 3, the two bearing devices 2 are arranged on opposite sides of the first direction W of the movable carrier 1 after being separated from the movable carrier 1, so that the opposite sides of the first direction W of the movable carrier 1 both have detection channels 26, and the two scanning systems 3 correspond to the two bearing devices 2 one by one. In this way, the security inspection system 10 can become a double-channel security inspection system, which can simultaneously perform security inspection on different objects, thereby effectively improving the efficiency.

[0095] Among them, at least one of the two bearing devices 2 can be connected with the movable carrier 1 through the connecting device 8 after being separated from the movable carrier 1, that is, only one of the two bearing devices 2 can be connected with the movable carrier 1 through the connecting device 8, or both of the two bearing devices 2 can be connected with the movable carrier 1 through the connecting device 8. When both of the two bearing devices 2 are connected with the movable carrier 1 through the connecting device 8, both of the two bearing devices 2 and the movable carrier 1 can be accurately positioned, and more accurate detection results can be obtained. Among them, when both of the two bearing devices 2 are connected with the movable carrier 1 through the connecting device 8 after being separated from the movable carrier 1, the two connecting devices 8 connected with the two bearing devices 2 respectively can face each other, or can be staggered along the second direction L of the movable carrier 1.

[0096] Next, the embodiments shown in Figures 1-15 will be further introduced.

[0097] First, the first embodiment shown in Figures 1-10 will be introduced.

[0098] As shown in Figures 1-10 , in the first embodiment, the security inspection system 10 includes a movable carrier 1, a first ray source 41, a first backscatter detector 46, a bearing device 2, a first transmission detector 42, a leg 23, a support 24 and a connecting device 8. The first ray source 41 and the first backscatter detector 46 are both fixed on the movable carrier 1. The bearing device 2 is detachably arranged on the movable carrier 1. The first transmission detector 42, the leg 23, the support 24 and the connecting device 8 are all arranged on the bearing device 2, and the support 24 and the connecting device 8 are both detachably connected with the bearing device 2.

[0099] Specifically, as shown in Figures 1-3As shown, in this embodiment, the movable carrier 1 is a vehicle, including a tractor 11 and a semi-trailer 12. The tractor 11 includes a cab, and a shielded compartment 7 is provided on the portion of the tractor 11 located behind the cab. The semi-trailer 12 is detachably connected to the rear of the tractor 11, so that when the tractor 11 is moving, it can pull the semi-trailer 12 along with it. It can be understood that "forward" and "rear" are defined based on the direction of travel of the movable carrier 1; "forward" is the direction in which the movable carrier 1 moves forward, and "rear" is the direction in which the movable carrier 1 moves backward. The forward and backward directions defined in this way are consistent with the second direction L of the movable carrier 1. Based on this, the first direction W of the movable carrier 1 is consistent with the left and right directions.

[0100] like Figure 5 As shown, in this embodiment, both the first radiation source 41 and the first backscatter detector 46 are mounted on the tractor 11, allowing both to move along with the movable carrier 1 and be flexibly transferred between different locations. Furthermore, combined with... Figure 4 and Figure 5 As can be seen, in this embodiment, the first radiation source 41 and the first backscatter detector 46 are specifically disposed within the shielding chamber 7 on the tractor 11, enabling the shielding chamber 7 to shield the radiation emitted by the first radiation source 41 to a certain extent, reducing the impact of the radiation on surrounding personnel and improving the operational safety of the security inspection system 10. The first backscatter detector 46 is disposed on the side of the first radiation source 41 near the first directional edge of the tractor 11, and is used to receive the radiation emitted by the first radiation source 41 and reflected back by the object being inspected, thereby realizing backscatter scanning of the object being inspected. In this embodiment, the first radiation source 41 can be an accelerator, an isotope source, or an X-ray machine, etc.

[0101] like Figures 1-10 As shown, in this embodiment, the carrier device 2 is detachably mounted on the semi-trailer 12, so that, on the one hand, during the relocation and transportation process, the carrier device 2, as well as the first transmission detector 42, outrigger 23, support member 24 and connecting device 8 on the carrier device 2, can move together with the movable carrier 1 and be flexibly transferred between different locations. On the other hand, after arriving at the testing site, the carrier device 2 can leave the movable carrier 1 and be arranged on one side of the movable carrier 1 along the first direction W, so that the first transmission detector 42 can cooperate with the first radiation source 41 to perform transmission scanning on the object under inspection.

[0102] Among them, such as Figures 1-4As shown, in this embodiment, the supporting device 2 includes a base 21 and four ramps 22. The four ramps 22 are divided into two groups and are disposed on both sides of the base 21 along the second direction L of the movable carrier 1. Each group of ramps 22 includes two ramps 22. The two ramps 22 in the same group are located on the same side of the base 21 along the second direction L of the movable carrier 1 and are arranged at intervals along the first direction W of the movable carrier 1. The ramps 22 located on both sides of the base 21 along the second direction L of the movable carrier 1 are opposite each other. Each ramp 22 is rotatably connected to the base 21, so that each ramp 22 can be used to support the carrier 1. Figure 4 The ramp 22 rotates between the vertical position indicated by the dashed line and the horizontal position indicated by the solid line. When the ramp 22 is in the vertical position, it is in a retracted state. When the ramp 22 is in the horizontal position, it is in an extended state. During relocation and transportation, all ramps 22 are in a retracted state, making the carrier 2 approximately cubic during transportation for ease of transport. Upon arrival at the testing site, and after the carrier 2 is positioned on one side of the movable carrier 1 along the first direction W, all ramps 22 are switched to the open state, forming a testing channel 26 for the inspected object to pass through. In this embodiment, the inspected object is a vehicle, referred to as the inspected movable carrier. During the testing process, the inspected movable carrier is guided by one side ramp 22 to the base 21, and then guided by the other side ramp 22 to leave the base 21.

[0103] like Figure 4 and Figure 10 As shown, in this embodiment, the first transmission detector 42 includes a first transmission detection unit 43, which is disposed on the base 21 and can... Figure 10 The horizontal position indicated by the dashed line and Figure 10 The device rotates between the vertical positions indicated by the solid line. When the first transmission detector 42 is in the horizontal position, the first transmission detector 43 is in the retracted state. When the first transmission detector 43 is in the vertical position, the first transmission detector 43 is in the open state. During transport, the first transmission detector 43 is in the retracted state for easy transport. During the detection process, the first transmission detector 43 switches to the open state to receive rays emitted from the first X-ray source 41 that pass through the object under inspection, thereby achieving a transmission scan of the object under inspection. Furthermore, as... Figure 4 As shown, in this embodiment, a baffle 27 is also provided on the base 21. The baffle 27 is located on the side of the first transmission detection unit 43 away from the movable carrier 1, and is used to block the first transmission detection unit 43 to prevent it from tipping over. Furthermore, the baffle 27 can be made of lead, steel, etc., to eliminate or reduce leakage of rays passing through the first transmission detection unit 43. To clearly illustrate the structure, in Figure 4 , Figure 7 , Figure 9 andFigure 10 In this case, baffle 27 is drawn using perspective.

[0104] Depend on Figure 10 As can be seen, in this embodiment, the first transmission detection unit 43 includes a detection arm and a detector array disposed on the detection arm. Specifically, in this embodiment, the detection arm includes two detection arm sections, and the detector array includes two detector units. The two detector units are respectively disposed on the two detection arm sections, forming two detection segments 44, each including a detection arm section and a transmission detector unit disposed on the detection arm. One detection segment 44 is longer, and its detection arm section is rotatably connected to the base 21, realizing the rotatable connection between the first transmission detection unit 43 and the support device 2. The other detection segment 44 is shorter, and its detection arm section is rotatably connected to the end of the detection arm section of the longer detection segment 44, so that the shorter detection segment 44 can be folded and opened by rotating relative to the longer detection segment 44, changing the length of the first transmission detection unit 43 to adapt to the detection needs of objects of different heights. When the shorter detection segment 44 is... Figure 10 When folded as shown by the dashed line, the first transmission detection section 43 is shorter, which can meet the detection needs of objects with lower height. When the shorter detection section 44 is as shown... Figure 10 When opened as shown by the solid line, the first transmission detection part 43 is relatively long, which can meet the detection needs of objects with a relatively high height.

[0105] Back Figure 2 In this embodiment, the support leg 23 is disposed on the support device 2 and is used to support the support device 2 during the separation process between the support device 2 and the movable carrier 1. Figure 1 As shown, during relocation and transportation, outrigger 23 is in a retracted state and does not support the ground. However, as... Figure 2 As shown, upon arrival at the testing site, when the supporting device 2 needs to leave the movable carrier 1, the outriggers 23 extend and contact the ground, raising the supporting device 2 so that... Figure 3 As shown, driving away the movable carrier 1 allows the carrying device 2 to detach from the semi-trailer 12, thus separating it from the movable carrier 1. In this way, the carrying device 2 has a self-loading and unloading function, which is simple and convenient. Furthermore, since the outriggers 23 are adjustable in length, leveling can be performed during the separation process of the carrying device 2 from the movable carrier 1, flexibly adapting to different ground conditions. During actual testing, the outriggers 23 can be retracted or removed.

[0106] like Figure 7 As shown, in this embodiment, the support member 24 is used to support the carrying device 2 during its transfer to the target location after leaving the movable carrier 1, so as to facilitate the rapid arrival of the carrying device 2 at the target location. Figure 7It can be known that, in the embodiment, the bottom end of the support 24 is provided with the wheel 25, so that the moving resistance can be reduced, and the transfer of the carrying device 2 to the target position is further facilitated. Moreover, as shown in Figure 9 , the support 24 is also used for supporting the carrying device 2 during the connection of the connection device 8 to the movable carrier 1 and the carrying device 2, so as to facilitate the implementation of the corresponding connection process. Meanwhile, in combination with Figure 9 and Figure 10 , it can be known that, in the embodiment, the support 24 is detachably connected with the carrying device 2, which is only installed on the carrying device 2 before the carrying device 2 is transferred to the target position and is connected by the connection device 8, and is removed from the carrying device 2 after the connection device 8 connects the carrying device 2 and the movable carrier 1, so that the carrying device 2 can be placed on the ground to facilitate the object to be detected to get on and off. In addition, during the transfer process, the support 24 can also be removed from the carrying device 2 and placed on the movable carrier 1, or still placed on the carrying device 2 but not supported on the movable carrier 1.

[0107] The connection device 8 is used for connecting the movable carrier 1 and the carrying device 2 arranged on the side of the movable carrier 1 in the first direction W. As shown in Figure 4 and Figure 5 , in the embodiment, the connection device 8 includes two connecting rods 85 and a cross rod 84. The two connecting rods 85 are respectively used as the first connecting member 81 and the second connecting member 82, which are arranged at intervals along the second direction L of the movable carrier 1 and both extend along the first direction W of the movable carrier 1. The cross rod 84 is used as the third connecting member 83, which extends along the second direction L of the movable carrier 1 and is connected between the two connecting rods 85, so that the connection device 8 is in the shape of H. When the carrying device 2 and the movable carrier 1 are connected, one connecting rod 85 connects the first point of the movable carrier 1 and the carrying device 2, and the other connecting rod 85 connects the second point of the movable carrier 1 and the carrying device 2, so that the first radiation source 41 located on the movable carrier 1 and the first transmission detection part 43 located on the carrying device 2 are coplanar with each other, and an accurate transmission detection image can be obtained. It should be noted that the first point and the second point are the above-mentioned predetermined connection positions.

[0108] As shown in Figure 8 , in the embodiment, the two connecting rods 85 are both straight rods and cannot be elongated, at this time, the length of the connection device 8 is not adjustable, and the distance between the movable carrier 1 and the carrying device 2 after being connected by the connection device 8 is constant and cannot be changed.

[0109] In the embodiment, the connection device 8 is placed on the carrying device 2 during the transfer process, and is removed from the carrying device 2 to connect the carrying device 2 and the movable carrier 1 when necessary.

[0110] It can be seen that the security inspection system 10 of this embodiment can realize the side-view angle backscatter and transmission scanning process, and can be conveniently transferred and quickly and accurately deployed on the detection site.

[0111] Figures 1-3 The transfer process of the security inspection system 10 of this embodiment is shown.

[0112] As shown in Figure 1 , when it is needed to transfer to the detection site, the carrying device 2 with the first transmission detection part 43, the supporting legs 23, the supporting members 24 and the connecting device 8 is fixed on the semitrailer 12, and then the movable carrier 1 is started to reach the detection site. After that, as shown in Figure 2 , the supporting legs 23 are extended to support the carrying device 2 with the first transmission detection part 43, the supporting members 24 and the connecting device 8, so that the carrying device 2 is located at a distance above the semitrailer 12. Then, as shown in Figure 3 , the movable carrier 1 is started to drive the movable carrier 1 to move away from the carrying device 2 in the direction of the tractor 11, so that the carrying device 2 is separated from the movable carrier 1. In this way, the transfer and the separation of the carrying device 2 from the movable carrier 1 after reaching the detection site can be conveniently completed.

[0113] After the carrying device 2 is separated from the movable carrier 1, the carrying device 2 and the movable carrier 1 need to be positioned. Figures 8-10 The corresponding positioning process is shown.

[0114] As shown in Figure 8 , after the carrying device 2 is separated from the movable carrier 1, the first ends of the two connecting rods 85 of the connecting device 8 are fixed to the movable carrier 1 by means of a jackscrew or the like, and specifically to the tractor 11 of the movable carrier 1. Then, as shown in Figure 9 , the second ends of the two connecting rods 85 are fixed to the carrying device 2 pushed to the other side of the connecting device 8 by means of a jackscrew, and specifically to the base 21 of the carrying device 2. In the corresponding process, the supporting members 24 support the carrying device 2 and are in contact with the ground through the wheels 25. After the connection is completed, the first radiation source 41 on the tractor 11 is coplanar with the first transmission detection part 43. After that, all the ramps 22 of the carrying device 2 are rotated to the transverse position, and the supporting members 24 are removed, so that the height of the carrying device 2 is lowered, and the base 21 and all the ramps 22 fall to the ground. Then, as shown in Figure 10 , the first transmission detection part 43 is rotated from the horizontal position to the vertical position, and the shorter detection section 44 is rotated to the vertical position, so that the first transmission detection part 43 is opened. In this way, the on-site arrangement of the security inspection system 10 is completed.

[0115] After the on-site setup of the security inspection system 10 is completed, the first radiation source 41, the first backscatter detector 46 and the first transmission detector 43 are turned on, and the object to be inspected passes through the carrier device 2, thus completing the security inspection of the object to be inspected.

[0116] As can be seen, the security inspection system 10 of this embodiment has a simple structure, is easy to use, and has high detection accuracy.

[0117] Next, we will introduce... Figures 11-15 Several other embodiments are shown. For the sake of simplicity, the following description... Figures 11-15 When describing the several embodiments shown, only the differences from the first embodiment will be highlighted. For other aspects not described, please refer to the first embodiment for understanding.

[0118] First, let's introduce Figure 11 The second embodiment is shown.

[0119] like Figure 11 As shown, the main difference between this second embodiment and the first embodiment is that, in this second embodiment, the first transmission detector 42 no longer includes only the first transmission detection unit 43, but also includes a second transmission detection unit 45. The second transmission detection unit 45 is non-rotatable and is disposed on the base 21 approximately parallel to it, for use in conjunction with the first radiation source 41 to perform transmission scanning during the detection process. After the connecting device 8 connects the tractor 11 and the base 21, both the first transmission detection unit 43 and the second transmission detection unit 45 are coplanar with the first radiation source 41.

[0120] As can be seen, the security inspection system 10 of this embodiment can still be easily transferred and quickly and accurately deployed at the inspection site. Moreover, it can not only realize backscatter and transmission scanning processes, but also obtain transmission scanning images from different angles, which is conducive to further improving the accuracy of inspection results.

[0121] Next, we will introduce... Figure 12 The third embodiment shown.

[0122] like Figure 12As shown, the main difference between this third embodiment and the first embodiment is that, in this third embodiment, the security inspection system 10 includes not only a first scanning device 4 composed of a first radiation source 41, a first backscatter detector 46, and a first transmission detector 42, but also a second scanning device 5. The second scanning device 5 includes a second radiation source 51, a second backscatter detector 53, and a second transmission detector 52. The second radiation source 51 and the second backscatter detector 53, together with the first transmission detector 42, are mounted on the support device 2, with the second backscatter detector 53 positioned on the side of the second radiation source 51 closer to the movable carrier 1. The second transmission detector 52, together with the first radiation source 41 and the first backscatter detector 46, is mounted on the tractor 11. The second backscatter detector 53 and the second transmission detector 52 cooperate with the second radiation source 51 to perform backscatter scanning and transmission scanning. Thus, under the combined action of the first scanning device 4 and the second scanning device 5, the security inspection system 10 can perform backscatter scanning and transmission scanning of the inspected object from both sides, which improves operational flexibility and enhances the accuracy of inspection results.

[0123] Among them, by Figure 12 As can be seen, in this embodiment, the second scanning device 5 and the first scanning device 4 are arranged side by side on the second direction L of the movable carrier 1. The second backscatter detector 53 and the first transmission detector 42 may each include a detection arm, or the second backscatter detector 53 and the first transmission detector 42 may share a detection arm, and the two may be arranged at intervals along the second direction L of the movable carrier 1 on the same detection arm. Similarly, the second transmission detector 52 and the first backscatter detector 46 may each include a detection arm, or the second transmission detector 52 and the first backscatter detector 46 may share a detection arm, and the two may be arranged at intervals along the second direction L of the movable carrier 1 on the same detection arm.

[0124] In addition, such as Figure 12 As shown, the main difference between the third embodiment and the first embodiment is that, in the third embodiment, the first connecting member 81 and the second connecting member 82 of the connecting device 8 are no longer non-retractable connecting rods 85, but are changed to automatically retractable hydraulic rods 88. In this way, the connecting device 8 is no longer non-retractable, but retractable, so as to flexibly adapt to the detection needs of detection objects of different widths.

[0125] Next, we will introduce... Figures 13-14 The fourth embodiment shown.

[0126] like Figure 13 and Figure 14As shown, the fourth embodiment differs from the first embodiment mainly in that, in the fourth embodiment, the security inspection system 10 not only comprises the first scanning device 4 composed of the first ray source 41, the first backscatter detector 46 and the first transmission detector 42, but also comprises a third scanning device 6. The third scanning device 6 is arranged on the carrying device 2 and specifically located in the base 21. The third scanning device 6 comprises a third ray source 61 and a third backscatter detector 62. The third ray source 61 and the third backscatter detector 62 are both arranged in the base 21, and the third ray source 61 is located below the third backscatter detector 62. In this way, the third scanning device 6 can perform backscatter scanning of the object from the bottom view angle, so that the security inspection system 10 can not only realize the backscatter and transmission scanning processes from the side view angle, but also realize the backscatter scanning process from the bottom view angle, which is conducive to further improving the accuracy of the inspection result.

[0127] It should be noted that the third scanning device 6 of the fourth embodiment can also be applied to the embodiments shown in Figure 11 or Figure 12 . For example, when the third scanning device 6 is arranged in the embodiment shown in Figure 12 , the first scanning device 4, the second scanning device 5 and the third scanning device 6 can perform three-side backscatter scanning and double-side transmission scanning on the object, so as to obtain more comprehensive scanning images.

[0128] Next, the fifth embodiment shown in Figure 15 will be introduced.

[0129] As shown in Figure 15 , the main difference between the fifth embodiment and the first embodiment is that, in the fifth embodiment, the security inspection system 10 no longer comprises only one carrying device 2 and one first scanning device 4, but comprises two carrying devices 2 and two first scanning devices 4. During the detection process, the two carrying devices 2 are arranged on the opposite sides of the first direction W of the movable carrier 1 and are connected to the movable carrier 1 by two connecting devices 8. The two connecting devices 8 face each other. In this way, the movable carrier 1 has detection channels 26 on both sides of the first direction W, and can simultaneously perform security inspection on two objects, which is more efficient.

[0130] In addition, as shown in Figure 15 , the fifth embodiment differs from the first embodiment in that, in the fifth embodiment, the first connecting piece 81 and the second connecting piece 82 of the connecting device 8 are no longer the non-stretchable connecting rod 85, but are changed into the manually stretchable threaded telescopic rod 89. In this way, the connecting device 8 is no longer non-stretchable, but becomes stretchable, so as to be able to flexibly adapt to the detection needs of objects of different widths.

[0131] It should be noted that although Figure 15Only the first scanning device 4 is shown, but in fact, the second and third scanning devices 5, 6 mentioned above can also be applied to this fifth embodiment, for example, the second and third scanning devices 5, 6 can be provided for both of the carrier devices 2, so that three-side back scattering scanning and double-side transmission scanning can be realized at both of the detection channels 26.

[0132] The above description is merely exemplary embodiments of this application, and not intended to limit the scope of the application. Any modification, equivalent replacement and improvement made within the spirit and principle of the application shall fall within the scope of the application.

Claims

1. A security inspection system (10) characterized by, The application relates to a movable carrier (1), a carrier device (2) detachably arranged on the movable carrier (1) and arranged on one side of the movable carrier (1) in a first direction (W) after being separated from the movable carrier (1) so that the movable carrier (1) has a detection channel (26) for a subject to pass through, a scanning system (3) for scanning and detecting the subject passing through the detection channel (26) and comprising a first scanning device (4) comprising a first radiation source (41) and a first transmission detector (42) cooperating with each other, one of the first radiation source (41) and the first transmission detector (42) being arranged on the movable carrier (1) and the other being arranged on the carrier device (2), and a connecting device (8) detachably arranged on the carrier device (2) or the movable carrier (1) and used for connecting the movable carrier (1) and the carrier device (2) arranged on one side of the movable carrier (1) in the first direction (W) after the carrier device (2) is separated from the movable carrier (1) so that the first radiation source (41) and the first transmission detector (42) are coplanar with each other. The connecting device (8) comprises a first connecting member (81) and a second connecting member (82), the first connecting member (81) and the second connecting member (82) are arranged side by side and are connected with the carrier device (2) and the movable carrier (1). The first connecting member (81) and the second connecting member (82) are telescopic. The first connecting member (81) and / or the second connecting member (82) comprises an automatic telescopic member (86) or a manual telescopic member (87). The first connecting member (81) and / or the second connecting member (82) comprises a hydraulic rod (88) or a threaded telescopic rod (89). The connecting device (8) comprises a third connecting member (83) connected between the first connecting member (81) and the second connecting member (82).

2. The security inspection system (10) according to claim 1, characterized in that The third connecting member (83) comprises a cross rod (84) connected between the first connecting member (81) and the second connecting member (82) so that the connecting device (8) is in an H shape.

3. The security inspection system (10) according to claim 2, characterized in that The first transmission detector (42) comprises at least one of a first transmission detection part (43) located on the other side of the subject opposite to the first radiation source (41) during scanning and detection of the subject by the first scanning device (4) and a second transmission detection part (45) located below the subject during scanning and detection of the subject by the first scanning device (4).

4. The security inspection system (10) according to claim 3, characterized in that ​ 5. The security inspection system (10) according to claim 4, characterized in that ​ 6. The security inspection system (10) according to claim 2, characterized in that ​ 7. The security inspection system (10) according to claim 6, characterized in that ​ 8. The security inspection system (10) of claim 1, characterized by ​ 9. The security inspection system (10) according to claim 8, characterized in that The first transmission detection part (43) is rotatably arranged, so that the first transmission detection part (43) has an open state and a stowed state, and in the open state, the first transmission detection part (43) is located on the other side of the object to be detected opposite to the first ray source (41); and / or the length of the first transmission detection part (43) is adjustable.

10. The security inspection system (10) according to claim 9, characterized in that The first transmission detection part (43) comprises at least two detection sections (44), which are telescopically or foldably connected, so that the length of the first transmission detection part (43) is adjustable.

11. The security inspection system (10) according to claim 1, characterized in that The carrying device (2) comprises a base (21) and a ramp (22), one of the first ray source (41) and the first transmission detector (42) arranged on the carrying device (2) is arranged on the base (21), and the ramp (22) is arranged on the edge of the base (21) along the second direction (L) of the movable carrier (1), guiding the object to go up and down the base (21), and the second direction (L) is perpendicular to the first direction (W).

12. The security inspection system (10) according to claim 11, characterized in that The ramp (22) is rotatably arranged on the base (21), so that the ramp (22) has an open state and a stowed state.

13. The security inspection system (10) of claim 11, characterized by The opposite sides of the base (21) along the second direction (L) of the movable carrier (1) are each provided with the ramp (22); and / or one side of the base (21) along the second direction (L) of the movable carrier (1) is provided with at least two ramps (22).

14. The security inspection system (10) of claim 1, characterized by The carrying device (2) is provided with a supporting leg (23), which is elongated to support and lift the carrying device (2) when the carrying device (2) needs to be separated from the movable carrier (1); and / or the carrying device (2) is provided with a support member (24), and the bottom of the support member (24) is provided with wheels (25) for contacting the ground.

15. The security inspection system (10) according to claim 14, characterized in that The support member (24) is detachably connected with the carrying device (2).

16. The security inspection system (10) of claim 1, characterized by The first scanning device (4) comprises a first backscatter detector (46) matched with the first ray source (41), and the first backscatter detector (46) and the first ray source (41) are arranged on the same one of the movable carrier (1) and the carrying device (2).

17. The security inspection system (10) of claim 1, characterized by The scanning system (3) comprises a second scanning device (5), the second scanning device (5) comprises a second ray source (51), and further comprises at least one of a second transmission detector (52) and a second backscatter detector (53) matched with the second ray source (51), the second ray source (51) is arranged on the same one of the movable carrier (1) and the bearing device (2) as the first transmission detector (42), the second transmission detector (52) is arranged on the same one of the movable carrier (1) and the bearing device (2) as the first ray source (41), and the second backscatter detector (53) is arranged on the same one of the movable carrier (1) and the bearing device (2) as the first transmission detector (42); and / or, the scanning system (3) comprises a third scanning device (6), the third scanning device (6) is arranged on the bearing device (2) and comprises a third ray source (61) and a third backscatter detector (62) matched with each other, and the third ray source (61) and the third backscatter detector (62) are located below the object to be detected during scanning and detection of the object to be detected by the third scanning device (6).

18. The security inspection system (10) according to any one of claims 1-17, characterized in that, The safety inspection system (10) comprises two bearing devices (2) and two scanning systems (3), the two bearing devices (2) are arranged on opposite sides of the first direction (W) of the movable carrier (1) after being separated from the movable carrier (1), so that the opposite sides of the first direction (W) of the movable carrier (1) both have the detection channel (26), the two scanning systems (3) correspond to the two bearing devices (2) one by one, and at least one of the two bearing devices (2) is connected with the movable carrier (1) through the connecting device (8) after being separated from the movable carrier (1).

19. The security inspection system (10) of claim 18, characterized by The two bearing devices (2) are connected with the movable carrier (1) through the connecting device (8) after being separated from the movable carrier (1), and the two connecting devices (8) connected with the two bearing devices (2) respectively face each other or are staggered along a second direction (L) of the movable carrier (1) perpendicular to the first direction (W).

Images