Inspection system and inspection method

Abstract

To provide an inspection system for reducing waiting time for inspection of belongings, and an inspection method.SOLUTION: In an inspection system 10, one of a server, a detection apparatus, and an identification information acquisition apparatus includes: an electromagnetic wave transmission / reception unit 11 that emits an electromagnetic wave having a wavelength of equal to or more than 30 micrometers and equal to or less than one meter, and receives a reflection wave; a detection unit 12 that performs detection processing of detecting an abnormal state, based on a signal of the reflection wave; a decision unit 13 that decides, for an inspection target person from whom the abnormal state is detected, whether to perform a secondary inspection at the place or perform the secondary inspection later; and a registration unit 16 that registers, in association with a result of the detection processing, identification information about the inspection target person decided to be subjected to the secondary inspection later.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a detection system, an inspection system, and an inspection method. [Background technology]

[0002] Techniques related to the present invention are disclosed in Patent Documents 1 and 2.

[0003] Patent Document 1 discloses a technology for inspecting possessions using radio waves having at least a wavelength between 1 and 30 millimeters, detecting people suspected of carrying dangerous materials in a primary screening in which a large number of people are roughly inspected at once, and then conducting a more detailed inspection of the detected suspicious people in a secondary screening.

[0004] Patent Document 2 discloses a technology in which a facial image of the purchaser is taken when the ticket is issued, and authentication information based on the facial image is linked to information indicating the purchased seat and registered, and the person sitting in each seat at the venue is authenticated using an image taken of the person sitting in each seat and the above-mentioned pre-registered authentication information. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-204513 A [Patent Document 2] JP 2019-144933 A Summary of the Invention [Problem to be solved by the invention]

[0006] To ensure safety and the like, personal belongings are inspected in various locations. It is hoped that the waiting time for personal belongings inspections can be reduced. An object of the present invention is to reduce the waiting time for personal belongings inspections using a novel method. [Means for solving the problem]

[0007] According to the present invention, An electromagnetic wave transmitting / receiving means for irradiating electromagnetic waves having a wavelength of 30 micrometers or more and 1 meter or less and receiving reflected waves; A detection means for performing a detection process to detect an abnormal state based on the signal of the reflected wave; A decision means for deciding whether to conduct a secondary test on the test subject in which the abnormal state is detected at that location or at a later time; A registration means for registering the result of the detection process in association with identification information of the test subject who has been determined to undergo a secondary test later; An inspection system is provided having:

[0008] Further, according to the present invention, The computer It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, A detection process is performed to detect an abnormal state based on the reflected wave signal. determining whether to conduct a secondary test on the test subject in which the abnormal condition is detected at that location or at a later time; There is provided an examination method in which the result of the detection process is linked to and registered with identification information of the test subject who has been determined to undergo a secondary examination later. Effect of the Invention

[0009] According to the present invention, the waiting time for baggage inspection can be shortened. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating an example of a usage scene of the inspection system according to the present embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a hardware configuration of the inspection system according to the present embodiment. [Diagram 3] FIG. 2 is a diagram showing an example of a functional block diagram of the inspection system according to the present embodiment. [Figure 4] FIG. 2 is a diagram illustrating an example of an electromagnetic wave transmitting / receiving unit according to the present embodiment. [Diagram 5] FIG. 2 is a diagram illustrating an example of information processed by the inspection system of the present embodiment. [Figure 6] 4 is a flowchart showing an example of a process flow of the inspection system of the present embodiment. [Figure 7] FIG. 2 is a diagram showing an example of a functional block diagram of the inspection system according to the present embodiment. [Figure 8] FIG. 2 is a diagram illustrating an example of information processed by the inspection system of the present embodiment. [Figure 9] 4 is a flowchart showing an example of a process flow of the inspection system of the present embodiment. [Figure 10] FIG. 2 is a diagram illustrating an example of information processed by the inspection system of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are given the same reference numerals and the description will be omitted as appropriate.

[0012] <First embodiment> "overview" An overview of the inspection system of this embodiment will be described with reference to Fig. 1. The inspection system is used in any facility where possession inspection is required. Examples of facilities include, but are not limited to, buildings, companies, amusement facilities, airports, and stations.

[0013] The inspection system first inspects the person's belongings at the first inspection site, and then determines the route that the person to be inspected will take after the first inspection site based on the result of the inspection, and guides the person to the determined route.

[0014] For test subjects in whom the detection target is not detected, the testing system determines a route that is different from the route that leads to secondary testing, for example, a route that leads into the facility.

[0015] On the other hand, for a test subject in whom a detected object is detected, the inspection system determines whether to conduct a secondary inspection at that location (a second inspection site close to the first inspection site) or at a later time depending on the type of the detected object, and determines a route according to the decision. For example, for a test subject in whom a detected object with a high level of urgency (e.g., a gun, knife, etc.) is detected, the inspection system determines to conduct a secondary inspection at that location and determines a route to proceed to the second inspection site. On the other hand, for a test subject in whom a detected object with a low level of urgency (e.g., a plastic bottle, etc.) is detected, the inspection system determines to conduct a secondary inspection at a later time, and determines a route different from the route to proceed to the secondary inspection, for example, a route into the facility.

[0016] In this way, the inspection system determines the route for the person to take after the first inspection site based on the results of the baggage inspection at the first inspection site and guides the person to the determined route, making it possible to appropriately and efficiently guide the person to the route after the first inspection site. As a result, the work at the first inspection site becomes more efficient and the waiting time for inspection at the first inspection site can be shortened.

[0017] In addition, a testing system that can assign secondary tests to those at the location or at a later date depending on the type of detected object, rather than conducting secondary tests at the location for all test subjects in which a detection object is detected, can reduce congestion at the location (second testing site) for the secondary test, thereby shortening the waiting time for testing at the second testing site.

[0018] "Hardware Configuration" Next, an example of the hardware configuration of the inspection system will be described. Fig. 2 is a diagram showing an example of the hardware configuration of the inspection system. Each functional part of the inspection system is realized by any combination of hardware and software, centering on a CPU (Central Processing Unit) of any computer, memory, programs loaded into the memory, a storage unit such as a hard disk for storing the programs (programs stored beforehand at the stage of shipping the device, as well as programs downloaded from storage media such as CDs (Compact Discs) or servers on the Internet, can be stored), and a network connection interface. Those skilled in the art will understand that there are various variations in the methods and devices for realizing the above.

[0019] As shown in Fig. 2, the inspection system has a processor 1A, a memory 2A, an input / output interface 3A, a peripheral circuit 4A, and a bus 5A. The peripheral circuit 4A includes various modules. The inspection system does not have to have the peripheral circuit 4A. The inspection system may be composed of multiple physically and / or logically separated devices, or may be composed of a single device that is physically and logically integrated. When composed of multiple physically and / or logically separated devices, each of the multiple devices can have the above hardware configuration.

[0020] The bus 5A is a data transmission path for the processor 1A, memory 2A, peripheral circuit 4A, and input / output interface 3A to transmit and receive data to each other. The processor 1A is an arithmetic processing device such as a CPU or a GPU (Graphics Processing Unit). The memory 2A is a memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory). The input / output interface 3A includes an interface for acquiring information from an input device, an external device, an external server, an external sensor, an electromagnetic wave transmitting / receiving device, etc., and an interface for outputting information to an output device, an external device, an external server, an electromagnetic wave transmitting / receiving device, etc. Examples of the input device include a keyboard, a mouse, a microphone, etc. Examples of the output device include a display, a speaker, a printer, a mailer, etc. The processor 1A can issue commands to each module and perform calculations based on the results of those calculations.

[0021] "Function Configuration" Next, the functional configuration of the inspection system will be described. An example of a functional block diagram of the inspection system 10 is shown in Fig. 3. As shown in the figure, the inspection system 10 has an electromagnetic wave transmitting and receiving unit 11, a detecting unit 12, a determining unit 13, a guiding unit 14, and a memory unit 15.

[0022] The electromagnetic wave transmitting / receiving unit 11 irradiates electromagnetic waves (e.g., microwaves, millimeter waves, terahertz waves, etc.) with a wavelength of 30 micrometers or more and 1 meter or less toward a person present in a predetermined area, and receives the reflected waves. The electromagnetic wave transmitting / receiving unit 11 is, for example, a radar. The electromagnetic wave transmitting / receiving unit 11 can be configured using any technology. For example, as in the example of FIG. 4, the electromagnetic wave transmitting / receiving unit 11 may be a sensor panel configured by a radar in which multiple antenna elements are arranged. Note that the panel is just one example, and the electromagnetic wave transmitting / receiving unit 11 may be configured in other ways, such as a gate through which a person passes, or a booth into which a person enters.

[0023] The detection unit 12 performs a detection process to detect an abnormal state based on a signal of a reflected wave received by the electromagnetic wave transmission / reception unit 11. In this embodiment, the abnormal state is a state in which a person present in a predetermined area is carrying a preset detection object. The detection object is, for example, an object that is prohibited from being brought in, and examples of the detection object include, but are not limited to, a gun, a knife, a camera, a plastic bottle, etc. An example of the judgment process performed by the detection unit 12 will be described below.

[0024] -First processing example- In this example, the detection unit 12 creates a transmission image based on the signal of the reflected wave received by the electromagnetic wave transmission / reception unit 11. Then, the detection unit 12 detects a detection target from the transmission image based on the shape of an object that appears in the transmission image. When a detection target is detected from the transmission image, the detection unit 12 determines that a person present in a predetermined area is carrying the detected detection target.

[0025] Through advance preparation, feature amounts of the shapes of the multiple detection objects are generated and stored in the storage unit 15. The detection unit 12 detects the detection objects from the transmission image based on a comparison result between the feature amounts of the shapes of the detection objects stored in the storage unit 15 and the feature amounts of the shapes appearing in the transmission image. These processes by the detection unit 12 may be realized by using an estimation model generated by machine learning based on teacher data consisting of the transmission images and labels of multiple objects, or may be realized by template matching.

[0026] -Second processing example- In this example, the detection unit 12 judges whether a person present in a predetermined area is carrying a preset detection object based on a feature (reflected wave feature) that appears in the reflected wave signal received by the electromagnetic wave transmission / reception unit 11. When a reflected wave feature that is specific to the detection object is detected from the reflected wave signal, it is judged that the person present in the predetermined area is carrying the detected detection object.

[0027] Through advance preparation, reflected wave features of each of a plurality of objects are generated and stored in the storage unit 15. The detection unit 12 detects reflected wave features specific to the detection object from the reflected wave signal based on a comparison result between the reflected wave features of the detection object stored in the storage unit 15 and the features appearing in the reflected wave signal. These processes by the detection unit 12 may be realized by using an estimation model generated by machine learning based on teacher data consisting of the reflected wave signals and labels of a plurality of objects, or may be realized by template matching.

[0028] The determination unit 13 determines the route along which the test subject will proceed, based on the detection result by the detection unit 12.

[0029] For a test subject in whom an abnormal condition is not detected, i.e., a test subject in whom a detection target is not detected, the determination unit 13 determines a route (another route) other than the route for proceeding to the secondary inspection, for example, a route for proceeding into a facility.

[0030] On the other hand, for a test subject in which an abnormal state is detected, i.e., a test subject in which a detection object is detected, the decision unit 13 decides whether to conduct a secondary inspection at that location or later depending on the type of the detected object, and decides a route according to the decision. For example, for a test subject in which a detection object with a high level of urgency (e.g., a gun, a knife, etc.) is detected, the decision unit 13 decides to conduct a secondary inspection at that location and decides a route (first route) to proceed to a second inspection site. On the other hand, for a test subject in which a detection object with a low level of urgency (e.g., a plastic bottle, etc.) is detected, the decision unit 13 decides to conduct a secondary inspection later and decides a route (other route) different from the route to the secondary inspection, for example, a route to proceed into the facility.

[0031] In this embodiment, as shown in Fig. 5, at least a part of the detectable detection objects is registered as the first detection object. For example, a detection object with a high urgency is registered as the first detection object. Then, the determination unit 13 determines that a secondary test is to be performed at the location of the test subject in which the first detection object is detected, and determines that a secondary test is to be performed later on the test subject in which a detection object other than the first detection object is detected. The information shown in Fig. 5 is stored in advance in the storage unit 15.

[0032] The secondary inspection is a different inspection from the primary inspection conducted at the first inspection site. A more detailed inspection is conducted on the test subjects who are determined to be carrying a substance in the primary inspection. The secondary inspection may be, for example, a possession inspection by a person in charge, such as visual inspection or body contact, or may be other inspections.

[0033] The guidance unit 14 executes a process of guiding the test subject to the determined route. For example, as shown in Fig. 4, a gate G may be installed on each of the multiple routes. The guidance unit 14 may execute a process of opening the gate G on the route along which the test subject proceeds and closing the gate G on the other routes.

[0034] Furthermore, in addition to or instead of controlling the gate G, the guidance unit 14 may execute a process of notifying a predetermined party of the route along which the test subject will proceed. The notification is realized via any output device installed at the testing site, such as a display, a speaker, a lamp, a projection device, etc. The party to be notified may be the test subject, a person in charge of managing the test at the testing site, or both.

[0035] Next, an example of the process flow of the inspection system 10 will be described with reference to the flowchart of FIG.

[0036] First, the inspection system 10 executes a process of detecting a detection target from a person to be inspected (S10).

[0037] Specifically, the inspection system 10 irradiates an electromagnetic wave having a wavelength of 30 micrometers or more and 1 meter or less onto an object to be inspected, receives the reflected wave, and performs a process of detecting the object to be detected based on the signal of the reflected wave.

[0038] Next, the inspection system 10 determines the route that the inspection subject will take based on the detection result in S10 (S11).

[0039] Specifically, for a test subject in whom a detection target substance is not detected, the test system 10 determines a route that is different from the route to the secondary test, for example, a route to proceed into a facility.

[0040] Furthermore, for a test subject in which a predefined first detection object (see FIG. 5) is detected, the testing system 10 determines that a secondary test will be conducted at that location, and determines a route to proceed to a second testing site.

[0041] Furthermore, for a test subject in whom a detection object different from the first detection object (see FIG. 5) is detected, the testing system 10 decides to conduct a secondary test later, and determines a route different from the route to the secondary test, for example, a route into the facility.

[0042] Next, the testing system 10 executes a process of guiding the test subject to the route determined in S11 (S12).

[0043] Specifically, it controls the opening and closing of gates on each route, and notifies the person being inspected and the person in charge of the inspection of the determined route.

[0044] "Action and effect" As described above, the inspection system 10 determines the route for the person to follow after the first inspection site based on the result of the baggage inspection at the first inspection site and guides the person to the determined route, making it possible to appropriately and efficiently guide the person to the route after the first inspection site. As a result, the work at the first inspection site becomes more efficient and the waiting time for the inspection at the first inspection site can be shortened.

[0045] In addition, a testing system that can assign secondary tests to those at the location or at a later date depending on the type of detected object, rather than conducting secondary tests at the location for all test subjects in which a detection object is detected, can reduce congestion at the location (second testing site) for the secondary test, thereby shortening the waiting time for testing at the second testing site.

[0046] <Second embodiment> The inspection system 10 of this embodiment can dynamically change the first detection object (see FIG. 5) described in the first embodiment according to the situation. This will be described in detail below.

[0047] As described in the first embodiment, the determination unit 13 determines that a secondary test is to be conducted at the location of the test subject in which the first detection target is detected, and determines a route to proceed to the second testing site. On the other hand, the determination unit 13 determines that a secondary test is to be conducted later for a test subject in which a detection target other than the first detection target is detected, and determines a route different from the route for proceeding to the secondary test, for example, a route for proceeding into a facility.

[0048] Then, the determination unit 13 changes the detection target contained in the first detection target depending on the situation. The determination unit 13 can execute any one of the following first to third change processes.

[0049] -First change process- In this process, the determination unit 13 changes the detection target contained in the first detection target depending on the situation of the second inspection site.

[0050] The condition of the second inspection site includes at least one of the following: the congestion status of the second inspection site, the number of personnel in charge of the second inspection site, and the skills (proficiency in second inspection) of the personnel in charge of the second inspection site.

[0051] For example, a first detection object may be defined in advance for each congestion state (e.g., crowded, slightly crowded, normal, slightly empty, empty) of the secondary inspection performed at the second inspection site and stored in the storage unit 15. Based on information indicating the definition, the determination unit 13 can identify the first detection object according to the congestion state of the secondary inspection performed at the second inspection site. Note that the definition is such that the more crowded the secondary inspection performed at the second inspection site, the fewer the number of detection objects contained in the first detection object.

[0052] There are no particular limitations on the means for identifying the congestion status of the second inspection site at the second inspection site. For example, an image captured at the second inspection site may be analyzed to count the number of people waiting to be inspected, and the congestion status may be identified based on that number.

[0053] Alternatively, a first detection target may be defined in advance for each number of personnel in charge of the secondary inspection performed at the second inspection site and stored in the storage unit 15. Based on information indicating the definition, the determination unit 13 identifies a first detection target according to the number of personnel in charge of the secondary inspection performed at the second inspection site. Note that the definition is such that the fewer the number of personnel, the fewer the number of detection targets contained in the first detection target.

[0054] There is no particular limit to the means for identifying the number of people in charge of the secondary inspection carried out at the second inspection site. For example, the number of people in charge may be counted by analyzing images taken at the second inspection site. Alternatively, the number of people may be identified based on shift information registered in a server (information indicating the person in charge of the second inspection site at each date and time) or information indicating the person currently working at the second inspection site that is entered into a system installed at the second inspection site.

[0055] Alternatively, a first detection object may be defined in advance for each skill of a person in charge of the secondary inspection performed at the second inspection site and stored in the storage unit 15. Based on information indicating the definition, the determination unit 13 identifies a first detection object according to the skill of a person in charge of the secondary inspection performed at the second inspection site. Note that the definition is such that the number of detection objects contained in the first detection object increases as the person in charge has higher skills.

[0056] There is no particular limitation on the means for identifying the skills of the person in charge of the second inspection at the second inspection site. For example, the person in charge of the second inspection may be identified based on shift information registered in the server (information indicating the person in charge of the second inspection site at each date and time) or information indicating the person currently working that is entered into the system installed at the second inspection site. The skills of the person in charge of the second inspection may be identified by referring to the skills of each person registered in advance in the server.

[0057] Here, an example has been described in which the congestion status of the secondary inspection performed at the second inspection site, the number of personnel in charge of the secondary inspection performed at the second inspection site, and the skills of the personnel in charge of the secondary inspection performed at the second inspection site are used to classify cases, and the first detection object corresponding to each case is defined in advance. In addition, the congestion status of the secondary inspection performed at the second inspection site, the number of personnel in charge of the secondary inspection performed at the second inspection site, and the skills of the personnel in charge of the secondary inspection performed at the second inspection site may be used to classify cases, and the first detection object corresponding to each case may be defined in advance. Examples of cases in this case include "crowded, number of personnel 6 or more", "crowded, number of personnel 5 or less", "crowded, number of personnel 5 or less, there is a personnel with skill 5 or more", and "crowded, number of personnel 5 or less, there is no personnel with skill 5 or more".

[0058] -Second change processing- In this process, the determination unit 13 changes the detection object contained in the first detection object depending on at least one of the date and time, day of the week, weather, temperature, the occupancy level of the facility in which the inspection system 10 is installed, and the content of the event being held at the facility.

[0059] At least one of these items is used to classify cases, and a first detection object corresponding to each case is defined and stored in the storage unit 15. The determination unit 13 specifies the first detection object based on the information of the definition.

[0060] For example, the number of detection targets contained in the first detection object is defined to be small when the facility is crowded, whereas the number of detection targets contained in the first detection object is defined to be large when the facility is empty.

[0061] There is no particular limitation on the means for identifying the crowdedness of the facility in which the inspection system 10 is installed. For example, the crowdedness may be identified by analyzing images captured inside the facility. There is also no particular limitation on the means for identifying the content of an event held at the facility. For example, an operator may register the content in the inspection system 10 in advance.

[0062] -Third change processing- In this process, the determination unit 13 acquires attribute information of the test subject, and changes the detection target contained in the first detection target based on the attribute information. The attribute information includes sex, age, and the like.

[0063] At least one of these items is used to classify cases, and a first detection object corresponding to each case is defined and stored in the storage unit 15. The determination unit 13 specifies the first detection object based on the information of the definition.

[0064] It is defined that the lower the urgency, for example when the test subject is a child, the smaller the number of detection targets contained in the first detection subject.

[0065] There is no particular limitation on the means for acquiring the attribute information of the test subject. For example, an image of the test subject may be analyzed to estimate the gender and age. Alternatively, the input of the test subject's identification information (face information, fingerprint information, voiceprint information, iris information, gait information, strings of numbers and letters, etc.) may be accepted via an arbitrary input device, and the test subject's attribute information linked to the acquired identification information may be acquired from a server. In the latter case, the test subject's identification information and attribute information must be registered in advance in the server.

[0066] Other configurations of the inspection system 10 of this embodiment are similar to those of the first embodiment.

[0067] According to the inspection system 10 of this embodiment, the same action and effect as the first embodiment is realized. Furthermore, according to the inspection system 10 of this embodiment, the definition of the first detection object (see FIG. 5) used to determine whether or not to guide to the second inspection site where the secondary inspection is performed can be dynamically changed according to the situation. Since the criteria for guiding to the second inspection site can be dynamically changed according to the situation, congestion at the inspection site can be effectively reduced and the waiting time for the inspection at the inspection site can be effectively shortened.

[0068] <Third embodiment> The testing system 10 of the present embodiment includes a means for implementing a secondary test on a test subject who has been determined to undergo a secondary test later.

[0069] 7 shows an example of a functional block diagram of the inspection system 10 of this embodiment. As shown in the figure, the inspection system 10 has an electromagnetic wave transmitting / receiving unit 11, a detecting unit 12, a determining unit 13, a guiding unit 14, a memory unit 15, a registering unit 16, and a post-processing unit 17.

[0070] The registration unit 16 links the detection result to the identification information of the test subject who has been determined to undergo a secondary test later, and registers the result.

[0071] In this embodiment, the facility that uses the testing system 10 has a number of seats provided to users. These seats are purchased in advance by the users. The seat purchased by user A can be used only by user A. In this embodiment, the identification information of the seat purchased by this user is used as "identification information of the test subject." That is, the registration unit 16 links the detection result to the identification information of the seat of the test subject who is determined to undergo a secondary test later, and registers it.

[0072] At the inspection site, the identification information of the seat given to the inspection subject (seat purchased by the inspection subject) is input to the inspection system 10 by any means. For example, the identification information of the inspection subject may be read by a code reader (barcode, two-dimensional code, etc.), or a portable storage device (smartphone, mobile phone, smart watch, IC card, IC tag, etc.) that stores the seat identification information may be placed in a state (proximity) where it can communicate with the reader in short-distance wireless communication to transmit and receive information. In addition, the input of the inspection subject's identification information (face information, fingerprint information, voiceprint information, iris information, gait information, string of numbers and letters, etc.) may be accepted via any input device, and the identification information of the seat linked to the acquired identification information may be acquired from a server. In this case, the identification information of the inspection subject and the identification information of the seat must be registered in advance in the server.

[0073] 8 is a schematic diagram showing an example of information registered by the registration unit 16. The information is stored in the storage unit 15. In the example shown in the figure, the seat identification information and the detected detection object are associated with each other and registered.

[0074] Alternatively, the subject may be photographed at the inspection site. The registration unit 16 may then register the image generated by the photography in association with the identification information of the subject who is determined to undergo a secondary inspection later.

[0075] The post-processing unit 17 notifies a predetermined person in charge of the identification information of the seats assigned to the test subjects who have been determined to undergo a secondary test later. For example, the post-processing unit 17 notifies a predetermined person in charge of a list as shown in FIG. 8. The person in charge goes to the seats on the list and performs a secondary test on the person sitting there. The secondary test may be performed at the seats, or may be performed by moving to another location.

[0076] Furthermore, if an image of the test subject taken at the testing site is registered, the post-processing unit 17 may provide the image to a predetermined person in charge. Based on this image, the person in charge can confirm whether the person sitting in the seat is the same person as the test subject who has been determined to undergo a secondary test later.

[0077] There are no particular limitations on the means by which the list or image is provided to the designated person in charge. For example, the list or image may be sent to a pre-registered email address, may be displayed on a designated screen after logging in to an application or system, or a push notification function of the application may be used.

[0078] Next, an example of the process flow of the inspection system 10 will be described with reference to the flowchart of FIG.

[0079] First, the inspection system 10 executes a process of detecting a detection target from a person to be inspected (S20).

[0080] Specifically, the inspection system 10 irradiates an electromagnetic wave having a wavelength of 30 micrometers or more and 1 meter or less onto an object to be inspected, receives the reflected wave, and performs a process of detecting the object to be detected based on the signal of the reflected wave.

[0081] Next, the inspection system 10 determines the route that the inspection subject will take based on the detection result in S20 (S21).

[0082] Specifically, for a test subject in whom a detection target substance is not detected, the test system 10 determines a route that is different from the route to the secondary test, for example, a route to proceed into a facility.

[0083] Furthermore, for a test subject in which a predefined first detection object (see FIG. 5) is detected, the testing system 10 determines that a secondary test will be conducted at that location, and determines a route to proceed to a second testing site.

[0084] Furthermore, for a test subject in whom a detection object different from the first detection object (see FIG. 5) is detected, the testing system 10 decides to conduct a secondary test later, and determines a route different from the route to the secondary test, for example, a route into the facility.

[0085] Next, the testing system 10 links the result of the detection in S20 to the identification information of the test subject who was determined in S21 to be subjected to a secondary test later, and registers the result (S22).

[0086] Specifically, the inspection system 10 acquires the seat identification information given to the person to be inspected by any means. Then, the inspection system 10 associates the result of the detection in S20 with the seat identification information and registers it.

[0087] Next, the testing system 10 executes a process of guiding the test subject to the route determined in S21 (S22).

[0088] Specifically, it controls the opening and closing of gates on each route, and notifies the person being inspected and the person in charge of the inspection of the determined route.

[0089] Thereafter, the testing system 10 executes a process for conducting a secondary test on the test subjects who have been determined to undergo a secondary test later (S24).

[0090] Specifically, the inspection system 10 notifies a predetermined person in charge of the identification information of the seat assigned to the inspection subject who has been determined to undergo secondary inspection later.

[0091] Other configurations of the inspection system 10 of this embodiment are the same as those of the first and second embodiments. According to the inspection system 10 of this embodiment, the same action and effect as those of the first and second embodiments are realized. Furthermore, according to the inspection system 10 of this embodiment, the detection result can be registered in association with the seat identification information given to the inspection subject who has been determined to undergo a secondary inspection later. Then, based on this seat identification information, the inspection subject who has been determined to undergo a secondary inspection later can be tracked and the secondary inspection can be performed.

[0092] <Fourth embodiment> The testing system 10 of the present embodiment includes means for implementing a secondary test on a test subject who has been determined to undergo a secondary test later, and means different from those of the third embodiment.

[0093] 7 shows an example of a functional block diagram of the inspection system 10 of this embodiment. As shown in the figure, the inspection system 10 has an electromagnetic wave transmitting / receiving unit 11, a detecting unit 12, a determining unit 13, a guiding unit 14, a memory unit 15, a registering unit 16, and a post-processing unit 17.

[0094] The registration unit 16 links the detection result to the identification information of the test subject who has been determined to undergo a secondary test later, and registers the result.

[0095] In this embodiment, the "identification information of the test subject" linked to the detection result is the external appearance feature of the test subject. The test subject is photographed at the testing site, and the external appearance feature of the test subject is extracted from the image generated by the photographing. Examples of the external appearance feature include, but are not limited to, facial feature, physique feature, clothing feature, etc.

[0096] 10 is a schematic diagram showing an example of information registered by the registration unit 16. The information is stored in the storage unit 15. In the example shown in the figure, the external appearance feature amount of the test subject and the detected detection object are linked and registered. As shown in the figure, an image generated by photographing the test subject at the inspection site may be registered in association with identification information of the test subject who is determined to undergo a secondary inspection later.

[0097] The post-processing unit 17 detects the test subject who is determined to undergo a secondary test later from the images generated by the photographing device photographing the inside of the facility based on the feature amount of the appearance of the test subject. Then, the post-processing unit 17 notifies a predetermined person in charge of the position where the test subject was detected. At the time of this notification, the image of the detected test subject (at least one of the image photographed inside the facility and the image photographed at the inspection site) may be presented to the predetermined person in charge.

[0098] There are no particular limitations on the means for realizing the notification of the specified person in charge. For example, the notification may be sent to a pre-registered email address, may be displayed on a specified screen after logging in to an application or system, or a push notification function of the application may be used.

[0099] Here, a means for identifying the position where the test subject is detected will be described.

[0100] For example, the installation position and the photographing direction of the photographing device may be fixed. Then, information indicating the photographing area of ​​the photographing device (such as "Area A of the second floor seats," "Room B," "In front of the toilet on the third floor," etc.) may be stored in advance in the storage unit 15. In this case, the post-processing unit 17 specifies the photographing area of ​​the photographing device that generated the image in which the subject is detected as the position where the subject is detected.

[0101] Alternatively, the storage unit 15 may store in advance the external features of landmarks that serve as indicators of multiple locations within the facility. In this case, the post-processing unit 17 detects the landmarks from the image in which the subject is detected, and specifies the installation positions of the detected landmarks as the positions where the subject is detected. In this case, the image capturing device may capture images of the facility while moving within the facility by any means of transportation. Also, the image capturing direction of the image capturing device may be changed by any mechanism.

[0102] The person in charge who received the notification goes to the notified location and finds the person to be tested who was determined to be the subject of the second test later. The person in charge then conducts the second test on the person he found. The second test may be conducted at the seat or at another location.

[0103] Next, an example of the process flow of the inspection system 10 will be described with reference to the flowchart of FIG.

[0104] First, the inspection system 10 executes a process of detecting a detection target from a person to be inspected (S20).

[0105] Specifically, the inspection system 10 irradiates an electromagnetic wave having a wavelength of 30 micrometers or more and 1 meter or less onto an object to be inspected, receives the reflected wave, and performs a process of detecting the object to be detected based on the signal of the reflected wave.

[0106] Next, the inspection system 10 determines the route that the inspection subject will take based on the detection result in S20 (S21).

[0107] Specifically, for a test subject in whom a detection target substance is not detected, the test system 10 determines a route that is different from the route to the secondary test, for example, a route to proceed into a facility.

[0108] Furthermore, for a test subject in which a predefined first detection object (see FIG. 5) is detected, the testing system 10 determines that a secondary test will be conducted at that location, and determines a route to proceed to a second testing site.

[0109] Furthermore, for a test subject in whom a detection object different from the first detection object (see FIG. 5) is detected, the testing system 10 decides to conduct a secondary test later, and determines a route different from the route to the secondary test, for example, a route into the facility.

[0110] Next, the testing system 10 links the result of the detection in S20 to the identification information of the test subject who was determined in S21 to be subjected to a secondary test later, and registers the result (S22).

[0111] Specifically, an image of the test subject who is determined to undergo a secondary test later at the testing site is captured and generated. The testing system 10 analyzes the image and extracts the external appearance feature of the test subject who is determined to undergo a secondary test later. The testing system 10 then links the result of the detection in S20 to the external appearance feature of the test subject and registers it.

[0112] Next, the testing system 10 executes a process of guiding the test subject to the route determined in S21 (S22).

[0113] Specifically, it controls the opening and closing of gates on each route, and notifies the person being inspected and the person in charge of the inspection of the determined route.

[0114] Thereafter, the testing system 10 executes a process for conducting a secondary test on the test subjects who have been determined to undergo a secondary test later (S24).

[0115] Specifically, based on the external appearance features of test subjects who have been determined to undergo a secondary inspection at a later date, the inspection system 10 detects test subjects who have been determined to undergo a secondary inspection at a later date from images generated by an imaging device that photographs the facility, and notifies a designated person in charge of the detected location.

[0116] Other configurations of the inspection system 10 of this embodiment are the same as those of the first and second embodiments. According to the inspection system 10 of this embodiment, the same action and effect as those of the first and second embodiments are realized. Furthermore, according to the inspection system 10 of this embodiment, it is possible to register the detection result in association with the feature amount of the appearance of the inspection subject who is determined to undergo a secondary inspection later. Then, based on the feature amount of the appearance, it is possible to track the inspection subject who is determined to undergo a secondary inspection later, and perform the secondary inspection.

[0117] <Modification> -First modified example- In the above embodiment, two routes are prepared after the first inspection site, and the subsequent route is determined for each person to be inspected according to the inspection result at the first inspection site. As a modified example, three or more routes may be prepared after the first inspection site, and the subsequent route may be determined for each person to be inspected according to the inspection result at the first inspection site (whether or not a detection target was detected, the type of detection target detected, etc.).

[0118] -Second modified example- The abnormal state in the above embodiment is a state in which a person in a predetermined area is holding a preset detection object, and the detection unit 12 detects abnormal data (feature amount of the detection object) that is undesirable to be included in the reflected wave signal from the reflected wave signal.

[0119] In this modified example, the detector 12 performs a detection process to detect an abnormal state (a state different from the state indicated by the normal data) from the reflected wave signal by referring to normal data that is preferably included. Then, the decision unit 13 decides whether to perform a secondary inspection at that location or at a later time based on the contents of the detected abnormal state.

[0120] -Third variant- In the above embodiment, an object that is prohibited from being brought in is set as the detection object. Then, a state in which a person present in a predetermined area is carrying a preset detection object is detected as an abnormal state. In this modified example, an object that the user must have is set as the detection object. For example, a police badge or an object that a person participating in an event is required to carry is set as the detection object in this modified example. Then, in this modified example, a state in which a person present in a predetermined area does not carry a preset detection object is detected as an abnormal state. In this case, based on the attributes of the user in which the abnormal state is detected, it may be determined whether to perform a secondary inspection at that location or later. The attributes of the user may be those estimated from an image, such as gender and age, or may be others.

[0121] An object that is prohibited from being brought in may be set as detection object A, and an object that the user must have may be set as detection object B. In this case, the detection results will be divided into multiple cases, such as "a case where detection object A is detected and detection object B is not detected," "a case where detection object B is detected and detection object A is not detected," "a case where both detection objects A and B are detected," and "a case where neither detection object A nor B is detected." Which case is detected as an abnormal state is a design matter.

[0122] In these modified examples as well, the same effects as those of the above embodiment are achieved.

[0123] In this specification, "acquisition" includes at least one of the following: "the device itself goes to retrieve data stored in another device or storage medium (active acquisition)" based on user input or based on program instructions, such as receiving data by making a request or inquiry to another device, or accessing another device or storage medium and reading it, and "the device itself inputs data output from another device (passive acquisition)" based on user input or based on program instructions, such as receiving data that is distributed (or transmitted, push notification, etc.), and selecting and acquiring data from among the received data or information, and "editing data (converting it to text, rearranging data, extracting some data, changing the file format, etc.) to generate new data and acquiring the new data."

[0124] A part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes. 1. An electromagnetic wave transmitting / receiving means for emitting electromagnetic waves having a wavelength of 30 micrometers or more and 1 meter or less and receiving reflected waves; A detection means for performing a detection process to detect an abnormal state based on the signal of the reflected wave; A decision means for deciding whether to conduct a secondary test on the test subject in which the abnormal state is detected at that location or at a later time; A registration means for registering the result of the detection process in association with identification information of the test subject who has been determined to undergo a secondary test later; An inspection system having 2. The detection means detects the detection target based on the signal of the reflected wave, The testing system described in 1., wherein the decision means decides whether to conduct a secondary test on the test subject in which the detection target is detected at that location or at a later time. 3. The determining means Deciding to conduct a second test at the location of the test subject in which a predetermined first detection object has been detected; The testing system described in 2., which decides to conduct a secondary test later on the test subject in which a detection target other than the first detection target is detected. 4. The determining means The inspection system described in 3. changes the detection object contained in the first detection object depending on at least one of the congestion level of the secondary inspection performed at that location, the number of personnel in charge of the secondary inspection performed at that location, and the skills of the personnel in charge of the secondary inspection performed at that location. 5. The determining means The inspection system described in 3. or 4., which changes the detection target contained in the first detection target depending on at least one of the date and time, day of the week, weather, temperature, occupancy level of the facility, and content of events held at the facility. 6. The determining means The inspection system described in any one of 2. to 5., which acquires attribute information of the test subject from whom the detection object is detected, and changes the detection object contained in the first detection object based on the attribute information. 7. An inspection system described in any one of 1 to 6, wherein the identification information of the person being inspected is the identification information of the seat assigned to the person being inspected. 8. The inspection system described in 7., further comprising a post-processing means for notifying a designated person in charge of the identification information of the seat assigned to the person to be inspected who has been determined to undergo secondary inspection later. 9. An inspection system described in any one of 1 to 6, wherein the identification information of the subject is a feature of the subject's appearance. 10. The inspection system described in 9. further comprises a post-processing means for detecting the subjects of inspection who have been determined to undergo a secondary inspection later from images generated by an imaging device that photographs the facility based on the external appearance features of the subjects of inspection who have been determined to undergo a secondary inspection later, and notifying a designated person in charge of the detected location. 11. The computer: It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, A detection process is performed to detect an abnormal state based on the reflected wave signal. determining whether to conduct a secondary test on the test subject in which the abnormal condition is detected at that location or at a later time; An inspection method in which the results of the detection process are linked to and registered with the identification information of the inspection subject who has been determined to undergo a secondary inspection later. [Explanation of symbols]

[0125] 10 Inspection System 11 Electromagnetic wave transmitting and receiving unit 12 Detection section 13 Decision Section 14 Information Department 15 Storage section 16 Registration Department 17 Post-processing section 1A Processor 2A Memory 3A Input / Output I / F (Interface) 4A Peripheral circuit 5A Bus

Claims

1. An electromagnetic wave transmitting / receiving means for irradiating an electromagnetic wave having a wavelength of 30 micrometers or more and 1 meter or less and receiving a reflected wave; A detection means for performing a detection process to detect a preregistered detection target from among the possessions of the test subject based on the signal of the reflected wave; A determination means for classifying the test subjects into a first test subject in which the detection target was not detected, a second test subject in which a first detection target among the detection targets was detected, and a third test subject in which the detection target was detected but the first detection target was not detected, based on the result of the detection process; a means for performing a process of allowing the first subject to be tested to pass through a first inspection site, a process of guiding the second subject to be tested to a second inspection site, and a process of allowing the third subject to be tested to pass through the first inspection site and registering the third subject to be tested in a list for later second inspection; An inspection system having

2. The detection means detects a detection target based on a signal of the reflected wave, 2. The inspection system according to claim 1, wherein the determining means determines whether to conduct a secondary inspection on the subject in whom the detection target is detected at that location or at a later time.

3. The determining means is Deciding to conduct a secondary test at the location of the test subject in which the predetermined first detection object is detected; The testing system according to claim 2 , further comprising a step of determining whether or not a second test is to be conducted on the test subject in which a detection target other than the first detection target is detected.

4. The determining means is The inspection system according to claim 3, wherein the detection target contained in the first detection target is changed depending on at least one of the congestion level of the secondary inspection performed at the location, the number of personnel in charge of the secondary inspection performed at the location, and the skills of the personnel in charge of the secondary inspection performed at the location.

5. The determining means is The inspection system according to claim 3 or 4, wherein the detection target contained in the first detection target is changed depending on at least one of the date and time, day of the week, weather, temperature, occupancy level of the facility, and content of events held at the facility.

6. The determining means is The inspection system according to any one of claims 3 to 5, further comprising: acquiring attribute information of the test subject from whom the detection object is detected; and changing the detection object contained in the first detection object based on the attribute information.

7. The inspection system according to claim 1 , wherein the identification information of the person to be inspected is identification information of a seat assigned to the person to be inspected.

8. 8. The inspection system according to claim 7, further comprising a post-processing means for notifying a predetermined person in charge of the identification information of the seat given to the inspection subject who has been determined to undergo a secondary inspection later.

9. The inspection system according to claim 1 , wherein the identification information of the subject is a feature amount of the appearance of the subject.

10. The inspection system according to claim 9, further comprising a post-processing means for detecting the subjects of inspection who have been determined to undergo a secondary inspection later from images generated by an imaging device that photographs the inside of the facility based on the external appearance features of the subjects of inspection who have been determined to undergo a secondary inspection later, and notifying a designated person in charge of the detected location.

11. The computer It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, A detection process is performed to detect a preregistered detection target from among the possessions of the test subject based on the signal of the reflected wave. Based on the results of the detection process, the test subjects are classified into a first test subject in which the detection target was not detected, a second test subject in which a first detection target among the detection targets was detected, and a third test subject in which the detection target was detected but the first detection target was not detected; An inspection method which allows the first person to be inspected to pass through a primary inspection site, guides the second person to be inspected to a secondary inspection site, allows the third person to be inspected to pass through the primary inspection site, and registers the third person to be inspected on a list for later secondary inspection.

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