Article multi-channel security inspection device for entrance inspection and use method of article multi-channel security inspection device

Abstract

The invention discloses an article multi-channel security check device for entrance inspection and a use method thereof, and relates to the technical field of security check devices.The article multi-channel security check device comprises an automatic security check mechanism, a conveying mechanism is installed on the side face of the automatic security check mechanism, an unpacking security check mechanism is arranged at the end of the conveying mechanism, and a transfer mechanism is installed in the automatic security check mechanism; the automatic security inspection mechanism is composed of a first X-ray security inspection machine, a millimeter wave security inspection machine and a second X-ray security inspection machine. According to the invention, based on the detection results of the first X-ray security inspection machine and the millimeter wave security inspection machine, the detection results are judged and classified through the intelligent image judgment system of the image judgment terminal, so that an article with a dangerous article can be prompted in advance, and an image judgment person can lock a dangerous target in the judgment process; and meanwhile, the task load is redistributed to the graph discriminator through judgment and classification, so that the professional ability of each graph discriminator can be exerted to the greatest extent, the security check accuracy is improved, and the security is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of security inspection devices, and in particular to a multi-channel security inspection device for items used for entrance inspection and a method for using the device. Background Art

[0002] When people enter specific public places, such as airports, stations, museums, etc., they need to undergo security checks on the items they carry. Security checks are an important part of ensuring the safety of public places. With the increase in personnel flow and the improvement of security needs, the need to use security inspection devices to conduct security inspections on items has become increasingly prominent. Security inspection devices can improve security inspection efficiency and the accuracy of dangerous goods screening.

[0003] For example, publication number: CN116068660A discloses "a security inspection machine for intelligent security inspection", which includes a gantry, a channel is formed on the inner side of the gantry, a ray emitting device is provided on the top of the gantry, a ray receiving device is provided on the bottom of the gantry, both the ray emitting device and the ray receiving device are connected to the display via a control system, a conveyor is provided in the channel, both ends of the conveyor extend out of the channel, two lead curtains are provided at the feed end and the discharge end of the channel, and the upper ends of the lead curtains are connected to the gantry.

[0004] However, in the prior art, during the use of the channel-type security inspection machine, the security inspection machine needs to be equipped with a professionally trained image judge who is responsible for judging the scanned image corresponding to the bag displayed on the display of the security inspection machine to see whether it contains suspected contraband. If there is suspected contraband, the baggage inspector will open the bag for inspection. The existing security inspection machine must be equipped with at least one professional image judge and one baggage inspector during the security inspection process. Such a security inspection machine has the following problems during actual use: Problem 1: When security inspection is carried out at an entrance with a small flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 2: When security inspection is carried out at an entrance with a large ...3: When security inspection is carried out at an entrance with a large flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 4: When security inspection is carried out at an entrance with a large flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 5: When security inspection is carried out at an entrance with a large flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 6: When security inspection is carried out at an entrance with a large flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 7: When security inspection is carried out at an entrance with a large flow of people, the workload of the image judge is small, resulting in a waste of professional personnel resources; Problem 8: The workload is large, and in the process of distinguishing a large number of pictures, it is easy to cause deviations in the judgment results due to visual fatigue and physical exhaustion; Problem three, most of the existing channel-type security inspection machines are single-channel security inspection machines. When suspected contraband is found during the security inspection process, in order to reduce the risk, a security inspection table will be set up in front of the exit, and the package inspector will assist the package carrier to conduct a package inspection at the security inspection table. Since the security inspection table is very close to the exit of the security inspection machine, the package inspector and the package carrier will affect the normal people who pass the security inspection to pick up the package during the package inspection. When the flow of people is large, it will cause the packages to be stacked and the people to gather at the exit of the security inspection machine, posing a safety risk. Summary of the invention

[0005] The object of the present invention is to provide a multi-channel security inspection device for items for entrance inspection and a method of using the same, so as to solve the problem that in the prior art proposed by the above background technology, when the workload of the image judge is small, the resources of professional personnel are wasted; when the workload of the image judge is heavy, it is easy for the judgment result to deviate due to visual fatigue and physical fatigue during the judgment process of a large number of pictures. At the same time, most of the existing channel-type security inspection machines are single-channel security inspection machines. When suspected contraband is found during the security inspection process, in order to reduce the risk, a security inspection table will be set up near the front of the exit, and the package inspector will assist the package carrier to conduct the package opening inspection at the security inspection table. Since the security inspection table is very close to the exit of the security inspection machine, the package inspector and the package carrier will affect the normal personnel who pass the security inspection to pick up the package during the package opening inspection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-channel security inspection device for articles for entrance inspection, comprising an automatic security inspection mechanism, a conveying mechanism is installed on the side of the automatic security inspection mechanism, a package opening security inspection mechanism is arranged at the end of the conveying mechanism, a transfer mechanism is installed inside the automatic security inspection mechanism, the automatic security inspection mechanism is composed of a No. 1 X-ray security inspection machine, a millimeter wave security inspection machine and a No. 2 X-ray security inspection machine, the No. 1 X-ray security inspection machine is located at one end of the millimeter wave security inspection machine, the No. 2 X-ray security inspection machine is located at the other end of the millimeter wave security inspection machine, the transfer mechanism is used to transfer articles inspected inside the millimeter wave security inspection machine to the inside of the No. 2 X-ray security inspection machine or the conveying mechanism, the conveying mechanism is used to transport articles to the package opening security inspection mechanism, the package opening security inspection mechanism is used to provide a closed package opening detection space, and a data processing terminal is installed on the upper part of the automatic security inspection mechanism; The data processing terminal is used to generate images from the detection signals of the No. 1 X-ray security inspection machine, the millimeter wave security inspection machine and the No. 2 X-ray security inspection machine, and the data processing terminal is externally connected to a picture judgment terminal, and the picture judgment terminal is used to judge the detected objects; The image judgment terminal includes an intelligent image judgment system and a scheduling system. The intelligent image judgment system is designed based on a neural network and is divided into four steps: A1. Generate original candidate regions through region selection algorithm; A2. Extract manually set features and determine the final candidate area; A3, the final candidate region is used as the input of the convolutional neural network of the target region; A4. Extract the features of the target area through the deep learning method of the regional recommendation network, and use the regional convolutional neural network algorithm to perform similarity judgment on the extracted features, and finally calculate the location information of the dangerous goods; The dispatching system is used to classify the security inspection pictures and evenly distribute the security inspection pictures to the judges. The security inspection pictures are based on the judgment results of the intelligent picture judgment system, which is divided into three steps: B1. The images that are judged to contain dangerous goods in the test results of No. 1 X-ray security inspection machine and millimeter wave security inspection machine are classified as Level 1 warning images; B2. Determine that among the test results of the No. 1 X-ray security inspection machine and the millimeter wave security inspection machine, if one of the test results contains a picture of dangerous goods, it is a Level 2 warning picture; B3. The images that are determined by the No. 1 X-ray security inspection machine and the millimeter wave security inspection machine to contain no dangerous goods are Level 3 warning images; The image judger judges the security inspection images assigned by the dispatching system.

[0007] Preferably, a No. 4 camera is installed at the front end of the No. 1 X-ray security inspection machine, and a data processing terminal is installed on the top of the No. 1 X-ray security inspection machine, the No. 4 camera is used to collect limb information and package information of the inspected person and transmit the collected data to the data processing terminal, the No. 1 X-ray security inspection machine and the No. 2 X-ray security inspection machine both use X-ray generators and X-ray detectors to perform safety inspections on items, and the No. 1 X-ray security inspection machine and the No. 2 X-ray security inspection machine transmit the detection signals to the data processing terminal, the millimeter wave security inspection machine uses a millimeter wave signal transmitter and a millimeter wave signal reflection receiver to perform safety inspections on items, and the millimeter wave security inspection machine transmits the detection signals to the data processing terminal.

[0008] Preferably, the data processing terminal includes a security inspection picture processing system, an image information acquisition system and an identification control system. The security inspection picture processing system includes an X-ray picture processing module and a millimeter wave imaging processing module. The X-ray picture processing module is used to process and convert the detection signals of the No. 1 X-ray security inspection machine and the No. 2 X-ray security inspection machine into pictures. The millimeter wave imaging processing module is used to process and convert the detection signals of the millimeter wave security inspection machine into pictures. The image information acquisition system is used to receive the human portrait and object images collected by the conveying mechanism, the package opening security inspection mechanism and the No. 4 camera during operation to extract features, and associate the human portrait feature information with the object feature information to bind people and objects. The identification control system is used to identify command signals and control the operation of the conveying mechanism, the package opening security inspection mechanism and the transfer mechanism.

[0009] Preferably, the package opening security inspection mechanism includes a security inspection table, a No. 1 liquid detector and a human-machine interface. A fixed frame is installed on the upper part of the security inspection table, and a No. 2 camera is fixedly connected to the lower part of the fixed frame. The No. 1 liquid detector is fixedly connected to the security inspection table, and the human-machine interface is fixedly connected to the security inspection table. A smart locker is installed at the lower part of the security inspection table, and the smart locker is electrically connected to the human-machine interface. A No. 1 gate is installed on the side of the security inspection table, and a No. 1 face recognition machine is installed on the upper part of the No. 1 gate. The No. 1 face recognition machine transmits the collected portrait information to the image information acquisition system, and the No. 2 camera transmits the collected object image information to the image information acquisition system. The image information acquisition system is used to perform feature matching on the portrait information and the object information. If the features of the person and the object are successfully matched, the No. 1 gate is opened, and the No. 1 gate has a voice interaction system.

[0010] Preferably, an auxiliary mechanism is provided at one end of the No. 1 X-ray security inspection machine, and the auxiliary mechanism includes a No. 2 gate, a No. 2 face recognition machine is installed on the top of the No. 2 gate, and a No. 3 camera and a No. 2 liquid detector are respectively installed on the sides of the No. 2 gate, and the No. 3 camera is located below the No. 2 liquid detector. The No. 2 face recognition machine and the No. 3 camera both transmit the collected information to the image information collection system, and the No. 2 gate has a voice interaction system.

[0011] Preferably, the conveying mechanism includes a protective cover, which is fixedly connected to the side of the millimeter wave security inspection machine, and a transfer conveyor No. 1 is installed inside the protective cover, and a camera No. 1 is arranged above the transfer conveyor No. 1, and the camera No. 1 is fixedly connected to the protective cover.

[0012] Preferably, the transfer mechanism includes a base, which is fixedly connected to the inner wall of the millimeter wave security inspection machine, and a limiting sleeve is fixedly connected to the upper part of the No. 2 transfer conveyor, a limiting rod is inserted inside the limiting sleeve, and a mounting plate is fixedly connected to the upper part of the limiting rod, a mounting box is fixedly connected to the upper part of the mounting plate, and a cylinder is fixedly connected to the side of the mounting plate, the mounting box is rotatably connected to a gear inside, and a rack is slidably connected to the inside of the mounting box, the telescopic end of the cylinder is fixedly connected to the end of the rack, the rack is meshed with the gear, the upper part of the gear is fixedly connected to a connecting shaft, the connecting shaft is rotatably connected to the mounting box, and a fixed plate is fixedly connected to the upper part of the connecting shaft, and the No. 2 transfer conveyor is fixedly connected to the upper part of the fixed plate.

[0013] Preferably, a wedge-shaped lifting block is fixedly connected to the bottom of the rack, and mutually connected through grooves are provided on the bottom of the mounting box and the surface of the mounting plate. The wedge-shaped lifting block is located inside the through groove, and a wedge-shaped guide block is fixedly connected to the upper part of the base, and the wedge-shaped lifting block is in contact with the surface of the wedge-shaped guide block.

[0014] Preferably, an arc-shaped slide rail is fixedly connected to the upper part of the mounting plate, an arc-shaped slider is slidably connected inside the arc-shaped slide rail, a support rod is fixedly connected to the upper part of the arc-shaped slider, the support rod is fixedly connected to the bottom of the fixed plate, the center of the arc-shaped slide rail and the center of the connecting shaft are on the same axis, the telescopic end stroke length of the cylinder is equal to one-fourth of the circumference of the gear, and the telescopic end stroke length of the cylinder is greater than the projected length of the hypotenuse of the wedge-shaped lifting block on the upper part of the base.

[0015] A method for using a multi-channel security inspection device for entrance inspection includes the following steps: S1. First, the No. 2 facial recognition machine and the No. 3 camera collect image information of the person who needs to be inspected and the items carried by the person, respectively, and transmit the image information to the image judgment terminal. At the same time, the dynamic video information is transmitted to the monitoring room. The security personnel in the monitoring room use the voice interaction system of the No. 2 gate machine to give voice prompts to the person holding the item containing liquid in his hand, prompting the person to place the item containing liquid on the No. 2 liquid detector for detection; S2. After passing through the No. 2 gate, the item is placed at the conveying end of the No. 1 X-ray security inspection machine. The item enters the No. 1 X-ray security inspection machine for inspection, and then passes through the millimeter wave security inspection machine for inspection. During the inspection process, the data is transmitted to the image judgment terminal through the data processing terminal. After the image judgment terminal determines that the item is not a dangerous item, the item passes through the No. 2 X-ray security inspection machine. S3. When the image recognition terminal determines that there are dangerous items in the items, the items are moved to the inside of the conveying mechanism through the transfer mechanism, and then transported to the upper part of the package opening and security inspection mechanism by the No. 1 transfer conveyor; S4. Afterwards, the person carrying the items opens the bag for inspection at the top of the security inspection counter. The inspection process is synchronized to the monitoring room through the No. 2 camera and remotely supervised by security personnel. S5. After taking out the dangerous goods, place them on the top of the No. 1 transfer conveyor, and then the No. 1 transfer conveyor will move them to the inside of the millimeter wave security inspection machine for security inspection, and then the No. 2 X-ray security inspection machine will conduct another security inspection on them. After the security inspection is passed, the No. 1 gate will open to complete the security inspection of the items.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, a No. 1 X-ray security inspection machine and a millimeter wave security inspection machine are used to perform two rounds of inspection on the items carried by personnel. The No. 1 X-ray security inspection machine can quickly and accurately inspect the inside of the items, and then the millimeter wave security inspection machine can perform a second inspection on the items, which can reduce the risk of missed inspection of dangerous goods. At the same time, by combining the advantages of the No. 1 X-ray security inspection machine in detecting metal items and the advantages of the millimeter wave security inspection machine in detecting non-metallic items, the accuracy of the entire item security inspection is higher. Based on the detection results of the No. 1 X-ray security inspection machine and the millimeter wave security inspection machine, the detection results are judged and classified by the intelligent image judgment system of the image judgment terminal, and the items with dangerous goods can be prompted in advance, which is conducive to the image judge to lock the dangerous targets in advance during the judgment process. At the same time, the task volume is redistributed to the image judges through judgment and classification, so as to avoid excessive workload of the image judges at the security checkpoints with large traffic, resulting in physical fatigue and reduced image judgment accuracy, thereby improving the accuracy of item security inspection and further improving safety.

[0017] 2. In the present invention, the items for security inspection are remotely judged based on the image judgment terminal to avoid too many people at the rear end of the security inspection machine during the unpacking inspection, which affects the passage of people. When the items are inspected, the second face recognition machine and the third camera respectively collect image information of the people who need to be inspected and the items carried by the people and transmit them to the image information collection system, perform feature matching on the portrait information and the item information, so that the items and people are bound. Then the fourth camera collects the images of the portrait and the items in the moving process, extracts features through the image information collection system, and associates the portrait feature information with the item feature information, and binds the people and the items again to ensure the accuracy of the binding results between people and items. When the security inspection shows that dangerous items are contained, when the people go to the unpacking security inspection agency for unpacking inspection, the first face recognition machine collects the portrait information and matches it with the image information of the items collected by the second camera. After the match is successful, the No. 1 gate is opened to prevent people from taking the wrong items. After the people enter, the No. 1 gate is closed to prevent people from escaping with dangerous items.

[0018] 3. In the present invention, the articles are moved to the interior of the conveying mechanism by the transfer mechanism, so that the articles that need to be unpacked for inspection are transferred to the side of the automatic security inspection mechanism for inspection, which can avoid the congestion of personnel caused by unpacking inspection. At the same time, dangerous articles are intercepted on the side of the automatic security inspection mechanism to avoid the dangerous articles from being carried to the exit position by the automatic security inspection mechanism. Dangerous articles are intercepted in a set area for unpacking inspection, and the articles that have been unpacked for inspection are re-inspected. During the unpacking inspection, both people and articles are in the set area. When the articles are re-inspected, people and articles are separated, and people wait in the closed area of ​​the unpacking security inspection mechanism, thereby avoiding excessive behavior of people during the unpacking security inspection and directly breaking into public areas with dangerous articles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a multi-channel security inspection device for entrance inspection of articles according to the present invention; Figure 2 This is a schematic diagram of the top view of a multi-channel security inspection device for entrance inspection of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of an automatic security inspection mechanism in a multi-channel security inspection device for items for entrance inspection according to the present invention; Figure 4 This is a schematic diagram of the internal structure of a conveying mechanism in a multi-channel security inspection device for items for entrance inspection according to the present invention; Figure 5 This is a flow chart of a data processing terminal in a multi-channel security inspection device for items for entrance inspection according to the present invention; Figure 6 This is a flow chart of an image recognition terminal in a multi-channel security inspection device for items for entrance inspection according to the present invention; Figure 7 This is a flow chart of an identification control system in a multi-channel security inspection device for items for entrance inspection according to the present invention; Figure 8 A schematic diagram of a security inspection process of a multi-channel security inspection device for items for entrance inspection according to the present invention; Fig. 9 It is a schematic diagram of the operation process of a conveying mechanism in a multi-channel security inspection device for items for entrance inspection according to the present invention; Fig.10 It is a side view structural schematic diagram of a transfer mechanism in a multi-channel security inspection device for items for entrance inspection according to the present invention; Fig.11 It is a schematic cross-sectional structure diagram of a fixing plate in a multi-channel security inspection device for items for entrance inspection according to the present invention; Fig.12 This is a schematic diagram of the internal structure of a mounting box in a multi-channel security inspection device for items for entrance inspection according to the present invention; Fig.13 The figure is a schematic diagram of the operation process of the transfer mechanism in a multi-channel security inspection device for items for entrance inspection according to the present invention.

[0020] In the figure: 1. Automatic security inspection mechanism; 11. No. 1 X-ray security inspection machine; 12. Millimeter wave security inspection machine; 13. No. 2 X-ray security inspection machine; 2. Conveying mechanism; 21. Protective cover; 22. No. 1 transfer conveyor; 23. No. 1 camera; 3. Package opening security inspection mechanism; 31. Security inspection table; 32. No. 2 camera; 33. No. 1 gate; 34. No. 1 face recognition machine; 35. No. 1 liquid detector; 36. Human-computer interaction device; 37. Smart locker; 4. Auxiliary mechanism; 41. No. 2 gate; 42. No. 2 human Face recognition machine; 43. Camera No. 3; 44. Liquid detector No. 2; 5. Data processing terminal; 6. Camera No. 4; 7. Transfer mechanism; 71. Transfer conveyor No. 2; 72. Base; 73. Limit sleeve; 74. Limit rod; 75. Mounting plate; 76. Cylinder; 77. Mounting box; 78. Rack; 79. Gear; 710. Connecting shaft; 711. Wedge-shaped guide block; 712. Wedge-shaped lifting block; 713. Arc slide rail; 714. Arc slide block; 715. Support rod; 716. Fixed plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, a multi-channel security inspection device for items for entrance inspection includes an automatic security inspection mechanism 1, a conveying mechanism 2 is installed on the side of the automatic security inspection mechanism 1, an unpacking security inspection mechanism 3 is arranged at the end of the conveying mechanism 2, a transfer mechanism 7 is installed inside the automatic security inspection mechanism 1, the automatic security inspection mechanism 1 is composed of a No. 1 X-ray security inspection machine 11, a millimeter wave security inspection machine 12 and a No. 2 X-ray security inspection machine 13, the No. 1 X-ray security inspection machine 11 is located at one end of the millimeter wave security inspection machine 12, and the No. 2 X-ray security inspection machine 13 is located at the other end of the millimeter wave security inspection machine 12, the transfer mechanism 7 is used to transfer the items inspected inside the millimeter wave security inspection machine 12 to the No. 2 X-ray security inspection machine 13 or to the conveying mechanism 2, the conveying mechanism 2 is used to transport the items to the unpacking security inspection mechanism 3, and the unpacking security inspection mechanism 3 is used to provide a closed unpacking detection space, a data processing terminal 5 is installed on the upper part of the automatic security inspection mechanism 1, and a No. 4 camera 6 is installed at the front end of the No. 1 X-ray security inspection machine 11, and A data processing terminal 5 is installed on the top of the No. 1 X-ray security inspection machine 11, and the No. 4 camera 6 is used to collect the limb information and package information of the inspected person, and the No. 4 camera 6 transmits the collected data to the data processing terminal 5. The No. 1 X-ray security inspection machine 11 and the No. 2 X-ray security inspection machine 13 both use X-ray generators and X-ray detectors to perform security inspections on items, and the No. 1 X-ray security inspection machine 11 and the No. 2 X-ray security inspection machine 13 transmit the detection signals to the data processing terminal 5. The millimeter wave security inspection machine 12 uses a millimeter wave signal transmitter and a millimeter wave signal reflection receiver to perform security inspections on items, and the millimeter wave security inspection machine 12 transmits the detection signals to the data processing terminal 5. The data processing terminal 5 is used to generate images from the detection signals of the No. 1 X-ray security inspection machine 11, the millimeter wave security inspection machine 12 and the No. 2 X-ray security inspection machine 13, and the data processing terminal 5 is externally connected to a picture judgment terminal, which is used to judge the detected items; The image recognition terminal includes an intelligent image recognition system and a scheduling system. The intelligent image recognition system is designed based on a neural network and is divided into four steps: A1. Generate original candidate regions through region selection algorithm; A2. Extract manually set features and determine the final candidate area; A3, the final candidate region is used as the input of the convolutional neural network of the target region; A4. Extract the features of the target area through the deep learning method of the regional recommendation network, and use the regional convolutional neural network algorithm to perform similarity judgment on the extracted features, and finally calculate the location information of the dangerous goods; The dispatching system is used to classify security inspection images and evenly distribute them to judges. The security inspection images are based on the judgment results of the intelligent judgment system: it is divided into three steps: B1. The image in which the detection results of both the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12 contain dangerous goods is determined to be a first-level warning image; B2: Determine that among the detection results of the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12, one of the detection results containing a picture of a dangerous article is a second-level warning picture; B3: The image in which the detection results of the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12 are determined to contain no dangerous goods is a level 3 warning image; The image judger judges the security inspection images assigned by the dispatch system.

[0023] The data processing terminal 5 includes a security inspection picture processing system, an image information acquisition system and an identification control system. The security inspection picture processing system includes an X-ray picture processing module and a millimeter wave imaging processing module. The X-ray picture processing module is used to process and convert the detection signals of the No. 1 X-ray security inspection machine 11 and the No. 2 X-ray security inspection machine 13 into pictures. The millimeter wave imaging processing module is used to process and convert the detection signals of the millimeter wave security inspection machine 12 into pictures. The image information acquisition system is used to receive the human portrait and object images collected by the conveying mechanism 2, the package opening security inspection mechanism 3 and the No. 4 camera 6 during operation to extract features, and associate the human portrait feature information with the object feature information to bind people and objects. The identification control system is used to identify command signals and control the operation of the conveying mechanism 2, the package opening security inspection mechanism 3 and the transfer mechanism 7.

[0024] In this embodiment, after passing through the No. 2 gate 41, the No. 4 camera 6 transmits the dynamic information of the personnel to the monitoring room for remote supervision by security personnel to prevent personnel from taking out dangerous goods from the package to avoid the security inspection during the movement. The items are placed at the conveying end of the No. 1 X-ray security inspection machine 11, and the items enter the No. 1 X-ray security inspection machine 11 for inspection, and then pass through the millimeter wave security inspection machine 12 for inspection. During the inspection process, the data is transmitted to the image judgment terminal through the data processing terminal 5. After the image judgment terminal determines that there are no dangerous goods in the items, the items pass through the No. 2 X-ray security inspection machine 13. A No. 1 X-ray security inspection machine 11 and a millimeter wave security inspection machine 12 are used to perform two rounds of inspection on items carried by personnel. The No. 1 X-ray security inspection machine 11 emits X-rays to inspect items, which can quickly and accurately inspect the inside of the items. Then, the millimeter wave security inspection machine 12 performs a secondary inspection on the items, which can reduce the risk of missed inspections of dangerous goods. At the same time, by combining the advantages of the No. 1 X-ray security inspection machine 11 in detecting metal items and the advantages of the millimeter wave security inspection machine 12 in detecting non-metallic items, the automatic security inspection mechanism 1 can perform higher accuracy in inspecting items. Based on the inspection results of the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12, the inspection results are judged and classified by the intelligent image judgment system of the image judgment terminal, which can prompt dangerous items in advance, which is beneficial for the judge to lock on dangerous targets during the judgment process, and at the same time, the tasks are redistributed through judgment classification. By assigning the workload to the image judges, the professional ability of each image judge can be maximized, and the inconsistent workload caused by inconsistent traffic at security checkpoints can be avoided. By uniformly scheduling and allocating the security inspection tasks, it can be avoided that the image judges at security checkpoints with large traffic flow have too much workload and physical fatigue, which leads to a decrease in the accuracy of image judgment, thereby improving the accuracy of image judgment and then improving safety. The transfer mechanism 7 then moves the items to the inside of the conveying mechanism 2, so that the items that need to be unpacked and inspected are transferred to the side of the automatic security inspection mechanism 1 for security inspection, which can avoid congestion caused by unpacking inspection. At the same time, intercepting dangerous goods on the side of the automatic security inspection mechanism 1 can prevent dangerous goods from following the automatic security inspection mechanism 1 to the exit position. Intercepting dangerous goods in the set area for unpacking inspection can reduce the risk factor in public areas.

[0025] Embodiment 2: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the package inspection mechanism 3 includes a security inspection platform 31, a No. 1 liquid detector 35 and a human-machine interface 36. A fixed frame is installed on the top of the security inspection platform 31, and a No. 2 camera 32 is fixedly connected to the bottom of the fixed frame. The No. 1 liquid detector 35 is fixedly connected to the security inspection platform 31, and the human-machine interface 36 is fixedly connected to the security inspection platform 31. An intelligent locker 37 is installed at the bottom of the security inspection platform 31, and the intelligent locker 37 is electrically connected to the human-machine interface 36. A No. 1 gate 33 is installed on the side of the security inspection platform 31, and a No. 1 face recognition machine 34 is installed on the top of the No. 1 gate 33. The No. 1 face recognition machine 34 transmits the collected portrait information to the image information acquisition system, and the No. 2 camera 32 transmits the collected article image information to the image information acquisition system. The image information acquisition system is used to perform feature matching on the portrait information and the article information. If the features of the person and the article are successfully matched, the No. 1 gate 33 is opened, and the No. 1 gate 33 has a voice interaction system. An auxiliary mechanism 4 is provided at one end of the No. 1 X-ray security inspection machine 11, and the auxiliary mechanism 4 includes a No. 2 gate 41. A No. 2 face recognition machine 42 is installed on the upper part of the No. 2 gate 41, and a No. 3 camera 43 and a No. 2 liquid detector 44 are installed on the side of the No. 2 gate 41 respectively, and the No. 3 camera 43 is located below the No. 2 liquid detector 44. The No. 2 face recognition machine 42 and the No. 3 camera 43 both transmit the collected information to the image information collection system, and the No. 2 gate 41 has a voice interaction system.

[0026] In this embodiment, when the image judgment terminal determines that there are dangerous items in the items, the items are moved to the inside of the conveying mechanism 2 through the transfer mechanism 7, and then transported to the upper part of the unpacking security inspection mechanism 3 by the No. 1 transfer conveyor 22. Subsequently, the person carrying the items undergoes unpacking inspection on the upper part of the security inspection table 31. The inspection process is synchronized to the monitoring room through the No. 2 camera 32, and the security personnel remotely supervise and inspect. After taking out the dangerous items, the items are placed on the upper part of the No. 1 transfer conveyor 22, and then the No. 1 transfer conveyor 22 moves them to the inside of the millimeter wave security inspection machine 12 for security inspection, and then the No. 2 X-ray security inspection machine 13 performs another security inspection on them. After the security inspection is qualified, the No. 1 gate 33 is opened to complete the security inspection of the items. If the security inspection fails, the on-site security personnel will be dispatched to deal with the items and personnel on the spot; Before the items are inspected, the second face recognition machine 42 and the third camera 43 respectively collect image information of the person who needs to be inspected and the items carried by the person, and transmit the image information to the image information collection system. The image information collection system performs feature matching on the portrait information and the item information to bind the item to the person. The fourth camera 6 then collects the images of the person and the item in the process of movement, extracts features through the image information collection system, and associates the portrait feature information with the item feature information to bind the person and the item again to ensure the accuracy of the binding result between the person and the item. When the item is inspected to contain dangerous items, when the person enters the unpacking inspection mechanism 3 for unpacking inspection, the first face recognition machine 34 will collect the portrait information and match it with the image information of the item collected by the second camera 32. After the match is successful, the first gate 33 will be opened to prevent the person from taking the wrong item. After the person enters, the first gate 33 will be closed to prevent the person from escaping with dangerous items. After unpacking and inspection, the person carrying the items takes out the dangerous items, and the security personnel in the monitoring room monitors the unpacking process through the No. 2 camera 32. When the dangerous items are taken out, the handling method is determined according to the specific type of the dangerous items, such as flammable liquids, controlled knives, daily necessities, etc. If the dangerous items are items that can be temporarily stored, such as lighters, mercury thermometers and other small items under special security requirements, the security personnel in the monitoring room prompt the person carrying the items through the human-computer interface 36 to store such items in the smart locker 37 for subsequent retrieval. If the risk factor of the dangerous items is high, the security personnel in the monitoring room notify the on-site security personnel to properly handle the dangerous items.

[0027] Embodiment three: Figure 1 , Figure 3 , Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13As shown, the conveying mechanism 2 includes a protective cover 21, which is fixedly connected to the side of the millimeter wave security inspection machine 12, and a No. 1 transfer conveyor 22 is installed inside the protective cover 21. A No. 1 camera 23 is arranged above the No. 1 transfer conveyor 22, and the No. 1 camera 23 is fixedly connected to the protective cover 21. The transfer mechanism 7 includes a base 72, which is fixedly connected to the inner wall of the millimeter wave security inspection machine 12, and a limit sleeve 73 is fixedly connected to the upper part of the No. 2 transfer conveyor 71, and the limit sleeve 73 is inside Insert the limit rod 74, the upper part of the limit rod 74 is fixedly connected to the mounting plate 75, the upper part of the mounting plate 75 is fixedly connected to the mounting box 77, and the side of the mounting plate 75 is fixedly connected to the cylinder 76, the mounting box 77 is rotatably connected to the gear 79, and the mounting box 77 is slidably connected to the rack 78, the telescopic end of the cylinder 76 is fixedly connected to the end of the rack 78, the rack 78 is meshed with the gear 79, and the upper part of the gear 79 is fixedly connected to the connecting shaft 710, and the connecting shaft 710 is rotatably connected to the mounting box 77 , and the upper part of the connecting shaft 710 is fixedly connected to a fixing plate 716, the upper part of the fixing plate 716 is fixedly connected to the No. 2 transfer conveyor 71, the bottom of the rack 78 is fixedly connected to a wedge-shaped lifting block 712, the bottom of the mounting box 77 and the surface of the mounting plate 75 are provided with mutually connected through grooves, the wedge-shaped lifting block 712 is located inside the through groove, the upper part of the base 72 is fixedly connected to a wedge-shaped guide block 711, the wedge-shaped lifting block 712 is in contact with the surface of the wedge-shaped guide block 711, and the upper part of the mounting plate 75 is fixedly connected to an arc-shaped sliding Rail 713, the arc-shaped slide rail 713 is slidably connected with an arc-shaped slider 714 inside, the upper part of the arc-shaped slider 714 is fixedly connected with a support rod 715, the support rod 715 is fixedly connected to the bottom of the fixed plate 716, the center of the arc-shaped slide rail 713 and the center of the connecting shaft 710 are on the same axis, the telescopic end stroke length of the cylinder 76 is equal to one-fourth of the circumference of the gear 79, and the telescopic end stroke length of the cylinder 76 is greater than the projection length of the hypotenuse of the wedge-shaped lifting block 712 on the upper part of the base 72.

[0028] In this embodiment, after the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12 cooperate with the data processing terminal 5 to determine that the articles contain dangerous goods, in the process of moving the articles to the inside of the conveying mechanism 2 through the transfer mechanism 7, the identification control system first issues a command to make the cylinder 76 push the rack 78 to move. During the movement of the rack 78, it will drive the gear 79 and the connecting shaft 710 to rotate, and then drive the No. 2 transfer conveyor 71 on the upper part of the fixed plate 716 to rotate ninety degrees, so that the No. 2 transfer conveyor 71 and the No. 1 transfer conveyor 22 remain in the same straight line. At the same time, the rack 78 will drive the No. 2 transfer conveyor 71 to rotate ninety degrees. The wedge-shaped lifting block 712 slides upward along the inclined surface of the wedge-shaped guide block 711, and at this time, the No. 2 transfer conveyor 71 above is lifted, so that the No. 2 transfer conveyor 71 maintains the same height as the No. 1 transfer conveyor 22, and then the items on the top of the No. 2 transfer conveyor 71 are stably moved to the top of the No. 1 transfer conveyor 22. By adjusting the No. 2 transfer conveyor 71 by rotating and lifting it at the same time, the diagonal length of the No. 2 transfer conveyor 71 is prevented from being too large during the rotation process and interfering with the conveying system inside the No. 1 X-ray security inspection machine 11 and the No. 2 X-ray security inspection machine 13, thereby further improving the stability of the items during the transfer process.

[0029] During the rotation of the No. 2 transfer conveyor 71, the arc-shaped slider 714 slides along the arc-shaped slide rail 713, and the rotation of the No. 2 transfer conveyor 71 is limited by the arc-shaped slider 714 and the arc-shaped slide rail 713 to improve the stability during rotation. During the upward movement of the wedge-shaped lifting block 712 along the wedge-shaped guide block 711, the limiting rod 74 will slide upward along the limiting sleeve 73 to limit the movement of the wedge-shaped lifting block 712, thereby improving the stability of the wedge-shaped lifting block 712 during movement.

[0030] Embodiment 4: A method for using a multi-channel security inspection device for entrance inspection, comprising the following steps: Step 1: First, the second face recognition machine 42 and the third camera 43 respectively collect image information of the person who needs to be inspected and the items carried by the person, and transmit the image information to the image judgment terminal, and at the same time transmit the dynamic video information to the monitoring room. The security personnel in the monitoring room use the voice interaction system of the second gate machine 41 to give voice prompts to the person holding the liquid item in his hand, prompting the person to place the liquid item on the second liquid detector 44 for detection; Step 2: After passing through the No. 2 gate 41, the article is placed at the conveying end of the No. 1 X-ray security inspection machine 11. The article enters the No. 1 X-ray security inspection machine 11 for inspection, and then passes through the millimeter wave security inspection machine 12 for inspection. During the inspection process, the data is transmitted to the image judgment terminal through the data processing terminal 5. After the image judgment terminal determines that the article is not a dangerous article, the article passes through the No. 2 X-ray security inspection machine 13. Step 3: When the image recognition terminal determines that there are dangerous items in the items, the items are moved to the inside of the conveying mechanism 2 by the transfer mechanism 7, and then transported to the upper part of the package opening and security inspection mechanism 3 by the No. 1 transfer conveyor 22; Step 4: Afterwards, the person carrying the item opens the bag for inspection on the top of the security inspection table 31. The inspection process is synchronized to the monitoring room through the second camera 32, and the security personnel remotely supervise the inspection; Step 5: After taking out the dangerous goods, place the goods on the upper part of the No. 1 transfer conveyor 22, and then the No. 1 transfer conveyor 22 moves the goods to the inside of the millimeter wave security inspection machine 12 for security inspection, and then the No. 2 X-ray security inspection machine 13 performs another security inspection on the goods. After the security inspection is passed, the No. 1 gate 33 is opened to complete the security inspection of the goods.

[0031] The working principle and use method of the device are as follows: the image information of the person who needs to be inspected and the items carried by the person are collected through the No. 2 face recognition machine 42 and the No. 3 camera 43 respectively, and the dynamic video information is transmitted to the monitoring room at the same time. The person places the liquid-containing items in his hand on the No. 2 liquid detector 44 for detection. After the liquid security check is passed, the No. 2 gate 41 is opened. If the person does not hold an unknown liquid in his hand, the No. 2 gate 41 is automatically opened, and the items are placed on the conveying end of the No. 1 X-ray security inspection machine 11. The items enter the No. 1 X-ray security inspection machine 11 for detection, and then pass through the millimeter wave security inspection machine 12 for detection. During the detection process, the data is transmitted to the image judgment terminal through the data processing terminal 5. After the image judgment terminal determines that there are no dangerous items in the items, the items go out through the No. 2 X-ray security inspection machine 13; When the image judgment terminal determines that there are dangerous items in the items, the items are moved to the inside of the conveying mechanism 2 through the transfer mechanism 7, and then transported to the upper part of the unpacking security inspection mechanism 3 by the No. 1 transfer conveyor 22. Subsequently, the person carrying the items undergoes unpacking inspection on the upper part of the security inspection table 31. The inspection process is synchronized to the monitoring room through the No. 2 camera 32, and the security personnel remotely supervise and inspect. After taking out the dangerous items, the items are placed on the upper part of the No. 1 transfer conveyor 22, and then moved to the inside of the millimeter wave security inspection machine 12 by the No. 1 transfer conveyor 22 for security inspection, and then re-inspected by the No. 2 X-ray security inspection machine 13. After the security inspection is qualified, the No. 1 gate 33 is opened to complete the security inspection of the items; After the No. 1 X-ray security inspection machine 11 and the millimeter wave security inspection machine 12 cooperate with the data processing terminal 5 to determine that the items contain dangerous goods, in the process of moving the items to the inside of the conveying mechanism 2 through the transfer mechanism 7, the identification control system first issues a command to enable the cylinder 76 to push the rack 78 to move. During the movement of the rack 78, it will drive the gear 79 and the connecting shaft 710 to rotate, and then drive the No. 2 transfer conveyor 71 on the upper part of the fixed plate 716 to rotate ninety degrees, so that the No. 2 transfer conveyor 71 and the No. 1 transfer conveyor 22 remain in the same straight line. At the same time, during the movement of the rack 78, the wedge-shaped lifting block 712 will slide upward along the inclined surface of the wedge-shaped guide block 711. At this time, the No. 2 transfer conveyor 71 above is lifted to keep the No. 2 transfer conveyor 71 at the same height as the No. 1 transfer conveyor 22.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-channel security inspection device for articles for entrance inspection, comprising an automatic security inspection mechanism (1), a conveying mechanism (2) being installed on the side of the automatic security inspection mechanism (1), a package opening security inspection mechanism (3) being arranged at the end of the conveying mechanism (2), and a transfer mechanism (7) being installed inside the automatic security inspection mechanism (1), characterized in that: The automatic security inspection mechanism (1) is composed of a No. 1 X-ray security inspection machine (11), a millimeter wave security inspection machine (12), and a No. 2 X-ray security inspection machine (13); the No. 1 X-ray security inspection machine (11) is located at one end of the millimeter wave security inspection machine (12); the No. 2 X-ray security inspection machine (13) is located at the other end of the millimeter wave security inspection machine (12); the transfer mechanism (7) is used to transfer items inspected inside the millimeter wave security inspection machine (12) to the inside of the No. 2 X-ray security inspection machine (13) or the inside of the conveying mechanism (2); the conveying mechanism (2) is used to convey the items to the package opening security inspection mechanism (3); the package opening security inspection mechanism (3) is used to provide a closed package opening detection space; and a data processing terminal (5) is installed on the upper part of the automatic security inspection mechanism (1); The data processing terminal (5) is used to generate images from the detection signals of the No. 1 X-ray security inspection machine (11), the millimeter wave security inspection machine (12) and the No. 2 X-ray security inspection machine (13), and the data processing terminal (5) is externally connected to an image judgment terminal, and the image judgment terminal is used to judge the detected objects; The image judgment terminal includes an intelligent image judgment system and a scheduling system. The intelligent image judgment system is used to identify and judge dangerous goods in the image. The scheduling system is used to classify security inspection images and evenly distribute the security inspection images to the image judges. The image judges judge the security inspection images assigned by the scheduling system.

2. The multi-channel security inspection device for items used for entrance inspection according to claim 1, characterized in that: The intelligent image recognition system is designed based on a neural network and is divided into four steps: A1. Generate original candidate regions through region selection algorithm; A2. Extract manually set features and determine the final candidate area; A3, the final candidate region is used as the input of the convolutional neural network of the target region; A4. Extract the features of the target area through the deep learning method of the regional recommendation network, and use the regional convolutional neural network algorithm to perform similarity judgment on the extracted features, and finally calculate the location information of the dangerous goods; The security inspection image is based on the judgment result of the intelligent image judgment system, which is divided into three steps: B1. Determine that the images containing dangerous goods in the detection results of both the No. 1 X-ray security inspection machine (11) and the millimeter wave security inspection machine (12) are first-level warning images; B2, determining that among the detection results of the No. 1 X-ray security inspection machine (11) and the millimeter wave security inspection machine (12), one of the detection results containing a picture of a dangerous article is a second-level warning picture; B3. The image in which the detection results of the No. 1 X-ray security inspection machine (11) and the millimeter wave security inspection machine (12) are determined to contain no dangerous goods is a third-level warning image.

3. The multi-channel security inspection device for items used for entrance inspection according to claim 2, characterized in that: A fourth camera (6) is installed at the front end of the No. 1 X-ray security inspection machine (11), and a data processing terminal (5) is installed on the upper part of the No. 1 X-ray security inspection machine (11). The fourth camera (6) is used to collect limb information and package information of the inspected person and transmit the collected data to the data processing terminal (5). The No. 1 X-ray security inspection machine (11) and the No. 2 X-ray security inspection machine (13) both use an X-ray generator and an X-ray detector to perform security inspection on items, and the No. 1 X-ray security inspection machine (11) and the No. 2 X-ray security inspection machine (13) transmit the detection signal to the data processing terminal (5). The millimeter wave security inspection machine (12) uses a millimeter wave signal transmitter and a millimeter wave signal reflection receiver to perform security inspection on items, and the millimeter wave security inspection machine (12) transmits the detection signal to the data processing terminal (5).

4. The multi-channel security inspection device for articles for entrance inspection according to claim 3, characterized in that: The data processing terminal (5) comprises a security inspection picture processing system, an image information acquisition system and an identification control system. The security inspection picture processing system comprises an X-ray picture processing module and a millimeter wave imaging processing module. The X-ray picture processing module is used to process and convert the detection signals of the No. 1 X-ray security inspection machine (11) and the No. 2 X-ray security inspection machine (13) into pictures. The millimeter wave imaging processing module is used to process and convert the detection signals of the millimeter wave security inspection machine (12) into pictures. The image information acquisition system is used to receive the images of people and objects collected by the conveying mechanism (2), the package opening security inspection mechanism (3) and the No. 4 camera (6) during operation and perform feature extraction, associate the feature information of the people with the feature information of the objects, and bind the people with the objects. The identification control system is used to identify the command signal and control the operation of the conveying mechanism (2), the package opening security inspection mechanism (3) and the transfer mechanism (7).

5. The multi-channel security inspection device for articles for entrance inspection according to claim 4, characterized in that: The package opening security inspection mechanism (3) comprises a security inspection platform (31), a No. 1 liquid detector (35) and a human-machine interface (36); a fixing frame is installed on the upper part of the security inspection platform (31); a No. 2 camera (32) is fixedly connected to the lower part of the fixing frame; the No. 1 liquid detector (35) is fixedly connected to the security inspection platform (31); the human-machine interface (36) is fixedly connected to the security inspection platform (31); an intelligent locker (37) is installed on the lower part of the security inspection platform (31); the intelligent locker (37) is electrically connected to the human-machine interface (36); A gate machine (33) is installed on the side of the security inspection platform (31), and a face recognition machine (34) is installed on the top of the gate machine (33). The face recognition machine (34) transmits the collected human portrait information to the image information collection system, and the second camera (32) transmits the collected object image information to the image information collection system. The image information collection system is used to perform feature matching on the human portrait information and the object information. If the human and object features are matched successfully, the gate machine (33) is opened. The gate machine (33) has a voice interaction system.

6. The multi-channel security inspection device for articles for entrance inspection according to claim 5, characterized in that: An auxiliary mechanism (4) is provided at one end of the No. 1 X-ray security inspection machine (11), the auxiliary mechanism (4) comprising a No. 2 gate machine (41), a No. 2 face recognition machine (42) being installed on the upper part of the No. 2 gate machine (41), and a No. 3 camera (43) and a No. 2 liquid detector (44) being installed on the side of the No. 2 gate machine (41), respectively, the No. 3 camera (43) being located below the No. 2 liquid detector (44), the No. 2 face recognition machine (42) and the No. 3 camera (43) both transmitting collected information to an image information collection system, and the No. 2 gate machine (41) having a voice interaction system.

7. The multi-channel security inspection device for items used for entrance inspection according to claim 6, characterized in that: The conveying mechanism (2) comprises a protective cover (21), the protective cover (21) being fixedly connected to a side of the millimeter wave security inspection machine (12), and a No. 1 transfer conveyor (22) being installed inside the protective cover (21), a No. 1 camera (23) being arranged above the No. 1 transfer conveyor (22), and the No. 1 camera (23) being fixedly connected to the protective cover (21).

8. The multi-channel security inspection device for articles for entrance inspection according to claim 7, characterized in that: The transfer mechanism (7) comprises a base (72), the base (72) being fixedly connected to the inner wall of the millimeter wave security inspection machine (12), and the upper part of the No. 2 transfer conveyor (71) being fixedly connected to a limit sleeve (73), the limit sleeve (73) being internally inserted with a limit rod (74), the upper part of the limit rod (74) being fixedly connected to a mounting plate (75), the upper part of the mounting plate (75) being fixedly connected to a mounting box (77), and the side of the mounting plate (75) being fixedly connected to a cylinder (76), the inner part of the mounting box (77) being fixedly connected to the inner part of the transfer conveyor (71). The mounting box (77) is slidably connected to a gear (79), and a rack (78) is slidably connected inside the mounting box (77). The telescopic end of the cylinder (76) is fixedly connected to the end of the rack (78). The rack (78) is meshed with the gear (79). The upper part of the gear (79) is fixedly connected to a connecting shaft (710). The connecting shaft (710) is rotatably connected to the mounting box (77). The upper part of the connecting shaft (710) is fixedly connected to a fixing plate (716). The upper part of the fixing plate (716) is fixedly connected to a No. 2 transfer conveyor (71).

9. The multi-channel security inspection device for articles for entrance inspection according to claim 8, characterized in that: A wedge-shaped lifting block (712) is fixedly connected to the bottom of the rack (78); mutually communicating through grooves are provided on the bottom of the mounting box (77) and the surface of the mounting plate (75); the wedge-shaped lifting block (712) is located inside the through groove; a wedge-shaped guide block (711) is fixedly connected to the top of the base (72); the wedge-shaped lifting block (712) is in contact with the surface of the wedge-shaped guide block (711); an arc-shaped slide rail (713) is fixedly connected to the top of the mounting plate (75); and a sliding member (713) is slidably connected inside the arc-shaped slide rail (713). An arc-shaped slider (714), wherein a support rod (715) is fixedly connected to the upper portion of the arc-shaped slider (714), wherein the support rod (715) is fixedly connected to the bottom of a fixed plate (716), wherein the center of the arc-shaped slide rail (713) and the center of the connecting shaft (710) are coaxial, wherein the telescopic end stroke length of the cylinder (76) is equal to one-fourth of the circumference of the gear (79), and the telescopic end stroke length of the cylinder (76) is greater than the projection dimension length of the hypotenuse of the wedge-shaped lifting block (712) on the upper portion of the base (72).

10. A method for using a multi-channel security inspection device for entrance inspection, characterized in that: A multi-channel security inspection device for entrance inspection according to any one of claims 1 to 9 is used, comprising the following steps: S1. First, the second face recognition machine (42) and the third camera (43) respectively collect image information of the person who needs to be inspected and the items carried by the person, and transmit the image information to the image judgment terminal, and at the same time transmit the dynamic video information to the monitoring room. The security personnel in the monitoring room use the voice interaction system of the second gate machine (41) to give a voice prompt to the person who is holding the item containing liquid in his hand, prompting the person to place the item containing liquid on the second liquid detector (44) for detection; S2, after passing through the No. 2 gate (41), the article is placed at the conveying end of the No. 1 X-ray security inspection machine (11), and the article enters the No. 1 X-ray security inspection machine (11) for inspection, and then passes through the millimeter wave security inspection machine (12) for inspection. During the inspection process, the data is transmitted to the image judgment terminal through the data processing terminal (5). After the image judgment terminal determines that the article is not a dangerous article, the article passes through the No. 2 X-ray security inspection machine (13) out; S3. When the image recognition terminal determines that there are dangerous items in the items, the items are moved to the inside of the conveying mechanism (2) by the transfer mechanism (7), and then transported to the upper part of the package opening and security inspection mechanism (3) by the No. 1 transfer conveyor (22); S4. Subsequently, the person carrying the items opens the bag for inspection at the top of the security inspection table (31). The inspection process is synchronized to the monitoring room through the second camera (32), and the security personnel remotely monitor the inspection. S5. After the dangerous goods are taken out, the goods are placed on the upper part of the No. 1 transfer conveyor (22), and then the No. 1 transfer conveyor (22) moves the goods to the inside of the millimeter wave security inspection machine (12) for security inspection, and then the No. 2 X-ray security inspection machine (13) performs another security inspection on the goods. After the security inspection is passed, the No. 1 gate (33) is opened to complete the security inspection of the goods.

Images