DETECTION SYSTEM, CONTROL DEVICE, AND DETECTION METHOD

Abstract

To reduce waiting time for inspection of belongings.SOLUTION: A detection system 1 includes a plurality of detection apparatuses 20 and a control apparatus 10. The control apparatus 10 includes a setting unit 11 that sets, for each of the detection apparatuses 20, at least one piece of pre-registered referable data as reference data. The detection apparatus 20 includes: an electromagnetic wave transmission / reception unit 22 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; and a detection unit 21 that performs, based on a signal of the reflection wave, detection processing based on the reference data being set for each of the detection apparatuses 20.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a detection system, a control device, a detection device, and a detection 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 for processing images generated by a CCD camera to determine the quality of the appearance of an object to be detected, and for processing the images using an inspection flow that corresponds to the input type of object to be inspected. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-204513 A [Patent Document 2] JP 2002-008013 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, A plurality of detection devices and a control device, The control device includes: a setting unit for setting at least one of the preregistered referable data as reference data for each of the detection devices; The detection device includes: The device has 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, The control device or the detection device is There is provided a detection system having a detection means for performing detection processing based on the reference data set in each of the detection devices, based on the reflected wave signal generated by each of the detection devices.

[0008] Further, according to the present invention, A detection system having a plurality of detection devices and a control device, setting at least one of the preregistered referable data as reference data for each of the detection devices; It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, There is provided a detection method in which detection processing is performed based on the reference data set in each of the detection devices, based on the reflected wave signals generated by each of the detection devices.

[0009] The present invention also provides a control device included in the detection system.

[0010] The present invention also provides a detection device included in the detection system. Effect of the Invention

[0011] According to the present invention, the waiting time for baggage inspection can be shortened. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a diagram illustrating an example of a functional block diagram of the detection system according to the present embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a hardware configuration of a control device and a detection device according to the present embodiment. [Diagram 3] FIG. 2 is a diagram illustrating an example of a functional block diagram of the detection 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 managed by the detection system according to the present embodiment. [Figure 6] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 7] FIG. 2 is a sequence diagram showing an example of a processing flow of the detection system of the present embodiment. [Figure 8] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 9] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 10] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 11] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 12] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 13] FIG. 2 is a diagram illustrating an example of information managed by the detection system according to the present embodiment. [Figure 14] FIG. 2 is a diagram illustrating an example of a functional block diagram of the detection system according to the present embodiment. [Figure 15] FIG. 2 is a sequence diagram showing an example of a processing flow of the detection system of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] 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.

[0014] <First embodiment> "overview" 1, the detection system 1 of the present embodiment includes a control device 10 and a plurality of detection devices 20. The detection system 1 of the present embodiment is used in any facility where baggage inspection is required. Examples of the facility include, but are not limited to, buildings, companies, amusement facilities, airports, and stations.

[0015] In this embodiment, a plurality of detection devices 20 are installed in one facility, and a multi-stage baggage inspection is performed on people who come to the facility. For example, a detection device 20 may be installed at the entrance of the facility, and a detection device 20 may be further installed at the entrance of each of a plurality of areas in the facility.

[0016] In the detection system 1 of this embodiment, at least one of the detectable objects registered in advance can be set as the detection object for each detection device 20. That is, the detection object can be different for each detection device 20. For example, the first detection device 20 sets "guns and knives" as the detection objects, and the second detection device 20 sets "cameras, smartphones, and mobile phones" as the detection objects.

[0017] Incidentally, there may be items that are prohibited from being brought into a facility, including "items that are prohibited from being brought into any area of ​​the facility" and "items that are prohibited from being brought into some areas of the facility but may be brought into other areas of the facility." In such a case, if a centralized baggage inspection were carried out in one place using a detection device 20 installed at the entrance to the facility to detect all of "items that are prohibited from being brought into any area of ​​the facility" and "items that are prohibited from being brought into some areas of the facility but may be brought into other areas of the facility," the load of the baggage inspection on the detection device 20 would be large, and waiting times could also be long.

[0018] In contrast, if a distributed possession inspection is performed in which, for example, a detection device 20 installed at the entrance of a facility detects "items that cannot be brought into any area of ​​the facility," and a detection device 20 installed at another location within the facility detects "items that cannot be brought beyond that location" among "items that cannot be brought into some areas of the facility but may be brought into other areas within the facility," the load on each detection device 20 can be reduced and the waiting time for possession inspection at each detection device 20 can be shortened. According to the detection system 1 of this embodiment, such a distributed possession inspection can be realized.

[0019] Moreover, according to the detection system 1 of the present embodiment, the detection target of each of the multiple detection devices 20 can be set via the control device 10 configured to be able to communicate with each of the multiple detection devices 20. According to such a detection system 1, the detection target of each of the multiple detection devices 20 can be set from a position remote from the detection device 20. This improves work efficiency compared to going to each of the multiple detection devices 20 installed in various locations within a facility and directly operating each detection device 20 there to set the detection target of each.

[0020] Furthermore, according to the detection system 1 of this embodiment, the detection target of each detection device 20 can be set by a simple operation of selecting at least one of the detectable objects registered in advance and setting it as the detection target. Since the detection target of each detection device 20 can be set by such a simple operation, the detection target of each detection device 20 can be dynamically and appropriately adjusted according to the situation of the day or time.

[0021] "Hardware Configuration" Next, an example of the hardware configuration of the control device 10 and the detection device 20 will be described. FIG. 2 is a diagram showing an example of the hardware configuration of the control device 10 and the detection device 20. Each functional unit of the control device 10 and the detection device 20 is realized by any combination of hardware and software, centering on a central processing unit (CPU) 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 a compact disc (CD) or a server 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 realization method and device.

[0022] As shown in FIG. 2, the control device 10 and the detection device 20 have 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 control device 10 and / or the detection device 20 may not have the peripheral circuit 4A. The control device 10 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. Similarly, the detection device 20 may be composed of multiple physically and / or logically separated devices. When composed of multiple physically and / or logically separated devices, each of the multiple devices can have the above hardware configuration.

[0023] 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.

[0024] "Function Configuration" Next, a description will be given of a functional configuration of the detection system 1. Fig. 3 shows an example of a functional block diagram of the detection system 1. As shown in the figure, the detection system 1 has a control device 10 and a plurality of detection devices 20.

[0025] "Functional configuration of detection device 20" As shown in FIG. 3, the detection device 20 includes a detection unit 21 and an electromagnetic wave transmission / reception unit 22.

[0026] The electromagnetic wave transmitting / receiving unit 22 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 22 is, for example, a radar. The electromagnetic wave transmitting / receiving unit 22 can be configured using any technology. For example, as in the example of FIG. 4, the electromagnetic wave transmitting / receiving unit 22 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 22 may be configured in other ways, such as a gate through which a person passes, or a booth into which a person enters.

[0027] The detection unit 21 judges whether or not a person present in a predetermined area is carrying a preset detection target, based on the signal of the reflected wave received by the electromagnetic wave transmitting / receiving unit 22. An example of the judgment process will be described below.

[0028] -First processing example- In this example, the detection unit 21 creates a transmission image based on the signal of the reflected wave received by the electromagnetic wave transmission / reception unit 22. Then, the detection unit 21 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, it is determined that a person present in a predetermined area is carrying the detected detection target.

[0029] Through advance preparation, shape features of each of a plurality of objects are generated and registered in the detection device 20. The objects whose shape features are registered become "detectable objects." In this embodiment, at least one of the plurality of detectable objects is set as a detection object for each detection device 20 by the setting unit 11 described below.

[0030] The detection unit 21 detects the detection object from the transmission image based on the result of matching between the feature amount of the shape of the detection object set in the detection device 20 and the feature amount of the shape appearing in the transmission image. Any object that is not set as a detection object among the detectable objects is excluded from the matching target. These processes by the detection unit 21 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.

[0031] -Second processing example- In this example, the detection unit 21 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 22. 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.

[0032] Through advance preparation, reflected wave feature amounts for each of a plurality of objects are generated and registered in the detection device 20. The objects for which reflected wave feature amounts are registered become "detectable objects." In this embodiment, at least one of the plurality of detectable objects is set as a detection object for each detection device 20 by the setting unit 11 described below.

[0033] The detection unit 21 detects reflected wave features specific to the detection target from the reflected wave signal based on the result of matching between the reflected wave features of the detection target set in the detection device 20 and the features appearing in the reflected wave signal. Note that objects that are not set as detection targets among the detectable objects are excluded from the matching targets. These processes by the detection unit 21 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 multiple objects, or may be realized by template matching.

[0034] The detection unit 21 can output the detection result via a predetermined output device (display, speaker, warning lamp, projection device, etc.). The output device may be installed, for example, near each detection device 20, and may be configured to present predetermined information to the person being inspected or to an administrator who manages the inspection. Furthermore, the detection unit 21 may change the output mode of the output device depending on the contents of the detection result (whether or not the object to be detected has been detected). There are various ways of outputting, and any means can be adopted in this embodiment.

[0035] "Functional configuration of the control device 10" As shown in Fig. 3, the control device 10 has a setting unit 11. In this embodiment, the control device 10 and each of the multiple detection devices 20 are configured to be remotely connectable. The control device 10 in this embodiment is, for example, a personal computer, a smartphone, a tablet terminal, a mobile phone, etc., but is not limited to these. A user performs a predetermined operation on the control device 10 to individually connect the control device 10 and each of the multiple detection devices 20.

[0036] The setting unit 11 sets at least one of the preregistered referable data as reference data for each detection device 20. In this embodiment, the setting unit 11 sets at least one of the feature amounts (shape feature amount or reflected wave feature amount) of the preregistered detectable objects as reference data. With this setting, at least one of the preregistered detectable objects is set as the detection object.

[0037] As described above, in this embodiment, the feature amount (shape feature amount or reflected wave feature amount) of each of the multiple objects is generated by prior preparation and registered in the detection device 20. The object with the registered feature amount becomes a "detectable object". The setting unit 11 selects at least one of the multiple detectable objects for each detection device 20 and accepts a user input to set the object as the detection object. For example, the setting unit 11 outputs a list of detectable objects as shown in FIG. 5 and accepts a user input to select at least one of the objects, and then transmits information indicating the detection object selected by the user input to the detection device 20 to set the detection object in the detection device 20.

[0038] "Action and effect" The detection system 1 of this embodiment has multiple detection devices 20 and can set a detection target for each detection device 20, thereby achieving distributed baggage inspection with a different detection target for each detection device 20. As a result, the load on each detection device 20 is reduced, and the waiting time for baggage inspection at each detection device 20 can be shortened.

[0039] Moreover, according to the detection system 1 of the present embodiment, the detection target of each of the multiple detection devices 20 can be set via the control device 10 configured to be able to communicate with each of the multiple detection devices 20. According to such a detection system 1, the detection target of each of the multiple detection devices 20 can be set from a position remote from the detection device 20. This improves work efficiency compared to going to each of the multiple detection devices 20 installed in various locations within a facility and directly operating each detection device 20 there to set the detection target of each.

[0040] Furthermore, according to the detection system 1 of this embodiment, the detection target of each detection device 20 can be set by a simple operation of selecting at least one of the detectable objects registered in advance and setting it as the detection target. Since the detection target of each detection device 20 can be set by such a simple operation, the detection target of each detection device 20 can be dynamically and appropriately adjusted according to the situation of the day or time.

[0041] <Second embodiment> The detection system 1 of this embodiment differs from the first embodiment in that the control device 10 is a server that manages settings of the detection target of each of the multiple detection devices 20. This will be described in detail below.

[0042] The setting unit 11 selects at least one of a plurality of detectable objects for each detection device 20 and accepts a user input to set the object as the detection object. As shown in Fig. 6, the setting unit 11 can collectively manage the setting status of the detection objects of each of the plurality of detection devices 20. Then, based on the setting status thus managed, the setting unit 11 transmits information indicating the detection object selected by the user input to each detection device 20, and sets the detection object in each detection device 20.

[0043] The setting unit 11 may output to the user information collectively indicating the setting status of the detection target of each of the multiple detection devices 20 as shown in Fig. 6. In this way, the user can collectively grasp the setting status of the detection target of each of the multiple detection devices 20 based on the information, and can easily grasp duplicate tests, missed tests, etc.

[0044] An example of the process flow of the detection system 1 will be described with reference to the sequence diagram of FIG. 7. First, the control device 10 selects at least one of a plurality of detectable objects for each detection device 20 and accepts a user input for the detection object (S10). Thereafter, the control device 10 transmits information indicating the set detection object to each of the plurality of detection devices 20, and sets the detection object in each detection device 20 (S11, S12). Thereafter, each detection device 20 executes a process for detecting the set detection object (S13, S14).

[0045] The other configurations of the detection system 1 of this embodiment are similar to those of the first embodiment.

[0046] According to the detection system 1 of this embodiment, the same action and effect as in the first embodiment is realized. Moreover, according to the detection system 1 of this embodiment, the settings of the detection targets of the multiple detection devices 20 can be collectively managed by a server. Therefore, it becomes easy to manage the settings of the detection targets of the multiple detection devices 20, and it becomes easy to collectively grasp the setting status of the detection targets of the multiple detection devices 20, etc.

[0047] <Third embodiment> The detection system 1 of this embodiment differs from the second embodiment in that it is possible to register setting information that specifies the detection target of each detection device 20 when each condition is satisfied, and to set the detection target for each detection device 20 based on the setting information. This will be described in detail below.

[0048] The setting unit 11 registers setting information that specifies the detection target of each detection device 20 when each condition is satisfied based on a user input. Then, the setting unit 11 sets the detection target for each detection device 20 based on the setting information.

[0049] The setting unit 11 may monitor whether the conditions are satisfied, and instruct each detection device 20 to change the detection target based on the monitoring result. As another example, the setting unit 11 may transmit setting information to each detection device 20 in advance, and set the detection target for each condition indicated in the setting information. In this case, each detection device 20 monitors whether the conditions are satisfied, and changes the detection target set in the detection device based on the monitoring result. There are no particular limitations on the means for acquiring material data for determining whether the conditions are satisfied, and any technology may be used to achieve this.

[0050] The conditions are defined using at least one of date and time and day of the week, for example. Fig. 8 shows an example of setting information (setting contents for each condition) in which conditions are defined by time. In the example shown, detection objects set in each detection device 20 between 8:00 and 10:00 and between 17:00 and 19:00, and detection objects set in each detection device 20 during other time periods are exemplified.

[0051] An example of setting information (setting contents for each condition) in which conditions are defined by days of the week is shown in Fig. 9. In the example shown, detection objects set in each detection device 20 on Saturday and Sunday, and detection objects set in each detection device 20 on other days of the week are shown as examples.

[0052] Although an example of defining conditions by date is not shown, it is possible to distinguish cases by date, such as February 1 to 15, 2021, February 15 and after, 2021, and specify the detection target of each detection device 20 corresponding to each case.

[0053] Alternatively, the conditions may be defined using at least one of weather and temperature. Fig. 10 shows an example of setting information (setting contents for each condition) in which a condition is defined by weather. In the example shown, detection objects set in each detection device 20 when it is raining and detection objects set in each detection device 20 when it is sunny are shown.

[0054] An example of setting information (setting contents for each condition) in which a condition is defined by temperature is shown in Fig. 11. In the example shown, detection objects set in each detection device 20 when the temperature is 10°C or lower, and detection objects set in each detection device 20 when the temperature is between 10°C and 18°C ​​are shown as examples.

[0055] Alternatively, the conditions may be defined using the congestion state of a facility in which multiple detection devices 20 are installed. Fig. 12 shows an example of setting information (setting contents for each condition) in which conditions are defined by the congestion state. In the example shown, detection objects set in each detection device 20 when it is crowded and detection objects set in each detection device 20 when it is slightly crowded are illustrated. The congestion state of the facility may be identified based on the number of visitors identified by any means such as image analysis.

[0056] Alternatively, the conditions may be defined using the contents of an event taking place at that time in a facility where multiple detection devices 20 are installed. Fig. 13 shows an example of setting information (setting contents for each condition) defined using the contents of an event. In the example shown, detection objects set in each detection device 20 when a concert is held and detection objects set in each detection device 20 when a sport is held are exemplified. The contents of the event taking place at each timing are specified based on a user input.

[0057] Although not shown, cases may be categorized by other items and objects to be detected by each detection device 20 may be specified corresponding to each item. Also, cases may be categorized by combining a plurality of items including date and time, day of the week, weather, temperature, congestion status of the facility, details of events at the facility, and other items and objects to be detected by each detection device 20 may be specified corresponding to each item.

[0058] The other configuration of the control device 10 is similar to that of the second embodiment.

[0059] According to the detection system 1 of this embodiment, the same action and effect as the second embodiment is realized. Also, according to the detection system 1 of this embodiment, setting information specifying the detection target of each detection device 20 when each condition is satisfied is registered for each condition, and the detection target can be set for each detection device 20 based on the setting information. According to such a detection system 1, it is possible to avoid the troublesome work of the user performing a change operation on the control device 10 every time it is necessary to change the detection target of each detection device 20.

[0060] <Fourth embodiment> As shown in the functional block diagram of FIG. 14, the detection system 1 of this embodiment differs from the first to third embodiments in that the control device 10 has a detection unit 21.

[0061] An example of the process flow of the detection system 1 will be described with reference to the sequence diagram of Fig. 15. First, the control device 10 selects at least one of a plurality of detectable objects for each detection device 20 and accepts a user input to set the object as the detection object. Then, the control device 10 sets the detection object for each detection device 20 according to the user input (S20). The setting contents are registered in the control device 10.

[0062] Each detection device 20 executes a process of irradiating electromagnetic waves having a wavelength of 30 micrometers or more and 1 meter or less, and receiving the reflected waves (S21, S23). Then, each detection device 20 transmits the reception results to the control device 10 (S22, S24). S22 and S24 may be performed as real-time processing or batch processing. The reception results transmitted in S22 and S24 may be the reflected wave signal itself received by the electromagnetic wave transmitting / receiving unit 22, or may be a transmission image created based on the reflected wave signal.

[0063] Thereafter, the control device 10 performs a process of detecting the detection target set in each detection device 20 based on the reception results received from each detection device 20 (S25).

[0064] Other configurations of the detection system 1 of this embodiment are similar to those of the first to third embodiments.

[0065] According to the detection system 1 of this embodiment, the same effects as those of the first to third embodiments are achieved.

[0066] <Example of multi-stage configuration> Here, an application example of the multi-stage configuration realized by the detection system 1 will be described.

[0067] For example, dangerous items can be set as detection targets at a company's reception desk, and cameras, smartphones, mobile phones, etc. can be set as detection targets at the entrance to a security area within the company.

[0068] In addition, dangerous objects can be set as detection objects at the entrance to a theme park, and plastic bottles and the like can be set as detection objects at the entrance to an attraction in the theme park.

[0069] Alternatively, a relatively large number of detection objects may be set for the detection device 20 in a less congested location, and a relatively small number of detection objects may be set for the detection device 20 in a more congested location.

[0070] In addition, the detection device 20 installed in a hall or stadium can be set to an appropriate detection object depending on the event being held at the time. For example, a camera can be set as the detection object when an exhibition is being held, and a plastic bottle or a musical instrument can be set as the detection object when a sporting event is being held.

[0071] <Variation 1> In the above embodiment, the "setting unit 11, which sets at least one of the preregistered referable data for each detection device 20 as reference data" sets the feature amount (shape feature amount or reflected wave feature amount) of the detection object as the reference data. That is, the setting unit 11 sets abnormal data that is undesirable to be included (data of an object that is prohibited from being brought in) as the reference data. Then, the detection unit 21 executes a process of detecting the abnormal data set as the reference data from the reflected wave signal.

[0072] In this modified example, the setting unit 11 sets normal data, which is preferably included, as reference data. That is, the setting unit 11 sets at least one of a plurality of normal data (referenceable data) registered in advance as reference data. Then, the detection unit 21 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 based on the normal data. In this modified example as well, the same action and effect as the above embodiment is achieved.

[0073] <Variation 2> In the above embodiment, an object that is prohibited from being brought in is set as the detection object. 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 an event participant is required to have is set as the detection object in this modified example. In this modified example, a user who has a detection object detected is allowed to pass through, and a user who has not a detection object detected is not allowed to pass through.

[0074] In addition, an object that is prohibited from being brought in may be set as the first detection object, and an object that the user must have may be set as the second detection object. In this case, the detection results are divided into a plurality of cases, such as "a case where the first detection object is detected and the second detection object is not detected," "a case where the second detection object is detected and the first detection object is not detected," "a case where both the first detection object and the second detection object are detected," and "a case where both the first detection object and the second detection object are not detected." It is a design matter what kind of processing is performed on the user in each case.

[0075] 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."

[0076] A part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes. 1. A method for detecting a temperature difference between a plurality of detection devices and a control device, The control device includes: a setting unit for setting at least one of the preregistered referable data as reference data for each of the detection devices; The detection device includes: The device has 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, The control device or the detection device is A detection system comprising: a detection means for performing detection processing based on the reference data set in each of the detection devices, based on the reflected wave signal generated by each of the detection devices. 2. The setting means is 1. A detection system according to claim 1, which accepts user input specifying the detection device and the reference data, and sets the reference data for each detection device based on the user input. 3. The setting means The detection system according to claim 1, further comprising: setting the reference data for each of the detection devices based on setting information that specifies, for each condition, the reference data for each of the detection devices when the condition is satisfied. 4. The detection system according to 3, wherein the condition is defined using at least one of a date and time and a day of the week. 5. A detection system according to claim 3 or 4, wherein the conditions are defined using at least one of weather and temperature. 6. A detection system according to any one of claims 3 to 5, wherein the condition is defined using the congestion level of a facility in which multiple detection devices are installed. 7. A detection system according to any one of 3 to 6, wherein the condition is defined using the content of an event taking place at that time in a facility in which a plurality of the detection devices are installed. 8. A detection system having a plurality of detection devices and a control device, setting at least one of the preregistered referable data as reference data for each of the detection devices; It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, A detection method in which detection processing is performed based on the reference data set in each of the detection devices, based on the reflected wave signals generated by each of the detection devices. 9. A control device having a detection system described in any one of 1 to 7. 10. A detection device having a detection system described in any one of 1 to 7. [Explanation of symbols]

[0077] 1. Detection System 10 Control device 11 Setting section 20 Detection device 21 Detection unit 22 Electromagnetic wave transmitting and receiving unit 1A Processor 2A Memory 3A Input / Output I / F (Interface) 4A Peripheral circuit 5A Bus

Claims

1. A plurality of detection devices and a control device, The control device includes: a setting unit for setting at least one of the preregistered referable data as reference data for each of the detection devices; The detection device includes: The electromagnetic wave transmitting / receiving means is configured to irradiate electromagnetic waves having a wavelength of 30 micrometers or more and 1 meter or less and to receive reflected waves, The control device or the detection device is a detection unit that performs detection processing based on the reference data set in each of the detection devices, based on the signal of the reflected wave generated by each of the detection devices; The setting means is A detection system that sets the reference data for each detection device based on setting information that specifies the reference data for each detection device when a condition is satisfied, for each condition defined using at least one of weather and temperature.

2. The setting means is The detection system according to claim 1 , further comprising: a user input for specifying the detection device and the reference data; and setting the reference data for each of the detection devices based on the user input.

3. The detection system according to claim 1 or 2, wherein the condition is further defined using at least one of a date and a day of the week.

4. The detection system according to claim 1 , wherein the condition is defined further using a congestion state of a facility in which a plurality of the detection devices are installed.

5. The detection system according to claim 1 , wherein the condition is defined further using the content of an event currently taking place in a facility in which the plurality of detection devices are installed.

6. A detection system having a plurality of detection devices and a control device, setting at least one of the preregistered referable data as reference data for each of the detection devices; It emits electromagnetic waves with wavelengths between 30 micrometers and 1 meter, receives reflected waves, performing a detection process based on the reference data set in each of the detection devices based on the reflected wave signals generated by each of the detection devices; In setting the reference data, A detection method for setting the reference data for each detection device based on setting information that specifies the reference data for each detection device when a condition defined using at least one of weather and temperature is satisfied.

7. A control device comprising the detection system according to any one of claims 1 to 5.

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