Gate device, immigration examination system, method for controlling gate device, and program

Abstract

To provide a gate device that achieves smooth immigration examination.SOLUTION: The gate device includes an acquisition unit, a collation request unit, and a control unit. The acquisition unit acquires biological information on an examination target user . The collation request unit requests collation of the biological information on the examination target user from a server device that stores the biological information on the user and MRZ (Machine Readable Zone) information described in a machine-readable region of a passport issued for the user in association with each other. The control unit controls a gate so as to allow the examination target user to pass in a case where reading of information from an IC (Integrated Circuit) chip of the passport using the MRZ information specified by the above collation succeeds.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a gate device, a server device, an immigration inspection system, a control method for a gate device, and a control method for a server device. [Background technology]

[0002] Immigration inspections are carried out at airports. Immigration officers compare the face photograph on the passport with the face of the person in front of them, and if the face photograph on the passport matches the face of the person in front of them, they allow the person to enter or leave the country.

[0003] In recent years, devices that automatically perform the immigration inspection have been introduced. For example, the gate device disclosed in Patent Document 1 inspects the entry and exit of a person by comparing a facial image attached to the passport with a facial image of the person standing in front of the gate device. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-071126 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the gate device disclosed in Patent Document 1, a user opens the page of his / her passport on which a facial image is recorded and places the page on a passport reader (scanner) installed in the gate device. The gate device obtains data necessary for the above-mentioned matching (one-to-one matching) from the passport reader (for example, see paragraph

[0035] of Patent Document 1).

[0006] To use the gate device disclosed in Patent Document 1, a user must stop in front of the gate device, open the passport he or she holds, and have the gate device read the information on the open page via a passport reader. However, forcing the user to perform such actions defeats the purpose of automatically carrying out immigration inspection. In other words, the gate device disclosed in Patent Document 1 does not allow users to complete immigration inspection smoothly and without stress.

[0007] A main object of the present invention is to provide a gate device, a server device, an immigration inspection system, a control method for a gate device, and a control method for a server device, which contribute to realizing a smooth immigration inspection. [Means for solving the problem]

[0008] According to a first aspect of the present invention, there is provided a gate device comprising: an acquisition unit that acquires biometric information of a user to be screened; a matching request unit that stores the user's biometric information in association with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user, and requests a server device to match the biometric information of the user to be screened; and a control unit that controls a gate to allow the user to pass if information is successfully read from the IC (Integrated Circuit) chip of the passport using the MRZ information identified by the matching.

[0009] According to a second aspect of the present invention, there is provided a server device comprising: a memory unit that associates a user's biometric information with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user and stores the associated information as gate user information; a matching unit that controls the gate in accordance with the results of the user's immigration inspection, and that uses the biometric information of the user subject to inspection received from a gate device to search for the gate user information and identify the MRZ information corresponding to the received biometric information; and a communication control unit that transmits the identified MRZ information to the gate device.

[0010] According to a third aspect of the present invention, there is provided an immigration inspection system including a server device that associates a user's biometric information with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user and stores them as gate user information, and a gate device that controls a gate in accordance with the results of the user's immigration inspection, wherein the gate device acquires the biometric information of the user to be inspected and transmits the biometric information of the user to the server device, the server device searches for the gate user information and identifies the MRZ information corresponding to the received biometric information and transmits the identified MRZ information to the gate device, and when the gate device is successful in reading information from an IC (Integrated Circuit) chip in the passport using the received MRZ information, it controls the gate to allow the user to pass through.

[0011] According to a fourth aspect of the present invention, there is provided a method for controlling a gate device, which acquires biometric information of a user to be screened, and stores the user's biometric information in association with MRZ (Machine Readable Zone) information printed in a machine-readable area of ​​a passport issued to the user, requests a server device to match the biometric information of the user to be screened, and, if information is successfully read from an IC (Integrated Circuit) chip in the passport using the MRZ information identified by the match, controls the gate to allow the user to pass through.

[0012] According to a fifth aspect of the present invention, there is provided a control method for a server device having a memory unit that associates a user's biometric information with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user and stores them as gate user information, the control method controlling a gate in accordance with the results of the user's immigration inspection, searching for the gate user information using the biometric information of a user subject to inspection received from a gate device, identifying the MRZ information corresponding to the received biometric information, and transmitting the identified MRZ information to the gate device. Effect of the Invention

[0013] According to each aspect of the present invention, there are provided a gate device, a server device, an immigration inspection system, a control method for a gate device, and a control method for a server device, which contribute to realizing smooth immigration inspection. Note that the effects of the present invention are not limited to those described above. The present invention may achieve other effects instead of or in addition to the effects. [Brief description of the drawings]

[0014] [Figure 1] FIG. 1 is a diagram for explaining an overview of an embodiment. [Diagram 2] 1 is a diagram showing an example of a schematic configuration of an immigration inspection system according to a first embodiment. [Diagram 3] FIG. 2 is a diagram illustrating an example of a processing configuration of a server device according to the first embodiment. [Figure 4] FIG. 11 is a diagram illustrating an example of a gate user database. [Diagram 5] FIG. 2 is a diagram illustrating an example of a hardware configuration of a server device according to the first embodiment. [Figure 6] 1 is a diagram illustrating an example of a hardware configuration of a gate device according to a first embodiment. [Figure 7] FIG. 2 is a diagram illustrating an example of a processing configuration of a gate device according to the first embodiment. [Figure 8] FIG. 13 illustrates an example of a matching request. [Figure 9]FIG. 2 is a sequence diagram showing an example of the operation of the immigration system according to the first embodiment. [Figure 10] FIG. 11 is a diagram illustrating an example of a processing configuration of a gate device according to a second embodiment. [Figure 11] FIG. 13 is a diagram for explaining a modified example of the present disclosure. [Figure 12] 1 is a diagram showing an example of a schematic configuration of an immigration inspection system disclosed in the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] First, an outline of one embodiment will be described. The reference numerals in the drawings are added to each element for convenience as an example to aid in understanding, and the description of the outline is not intended to be limiting. Furthermore, unless otherwise specified, the blocks shown in each drawing represent functional units rather than hardware units. The connection lines between the blocks in each drawing include both bidirectional and unidirectional. The unidirectional arrows are used to diagrammatically indicate the flow of the main signal (data) and do not exclude bidirectionality. In this specification and the drawings, elements that can be similarly described may be given the same reference numerals to avoid redundant description.

[0016] A gate device 100 according to an embodiment includes an acquisition unit 101, a matching request unit 102, and a control unit 103 (see FIG. 1). The acquisition unit 101 acquires biometric information of a user to be screened. The matching request unit 102 requests a server device, which stores the user's biometric information in association with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user, to match the biometric information of the user to be screened. When the control unit 103 successfully reads information from an IC (Integrated Circuit) chip in the passport using the MRZ information identified by the above matching, it controls the gate so that the user to be screened can pass through.

[0017] In an immigration system including the gate apparatus 100, if the biometric information of a user who wants to use the system is registered in advance in a server device, the user can complete immigration inspection by simply touching the passport to the gate apparatus 100 without opening it. As a result, it is possible to realize a smooth immigration inspection that is highly convenient for the user.

[0018] Specific embodiments will be described in more detail below with reference to the drawings.

[0019] [First embodiment] The first embodiment will be described in more detail with reference to the drawings.

[0020] FIG. 2 is a diagram showing an example of a schematic configuration of the immigration system according to the first embodiment. Referring to FIG. 2, the immigration system includes a plurality of gate devices 10-1 to 10-3 and a server device 20. In the following description, the gate devices 10-1 to 10-3 will be simply referred to as "gate device 10" unless there is a particular reason to distinguish between them. Although three gate devices 10 are shown in FIG. 2, it goes without saying that this is not intended to limit the number of gate devices 10 included in the system. It is sufficient for the immigration system to include at least one gate device 10.

[0021] The gate device 10 is a device that automatically performs immigration inspection procedures for users. The gate device 10 is equipped with a gate that can be opened and closed. When the gate device 10 determines that a person standing in front of the gate device has a valid passport, it opens the gate and allows the user to pass through. In this way, the gate device 10 controls the gate according to the result of the immigration inspection of the user.

[0022] The server device 20 is a device for implementing immigration inspection by the gate device 10. For example, the server device 20 stores information on users who can use the gate device 10 (hereinafter referred to as gate user information). Specifically, the server device 20 stores the biometric information of the user and information written in a machine readable zone (MRZ) of a passport issued to the user in association with each other (hereinafter referred to as MRZ information).

[0023] Examples of the biometric information of a user include data (feature amounts) calculated from physical characteristics unique to an individual, such as a face, fingerprint, voiceprint, veins, retina, and iris pattern. Alternatively, the biometric information of a user may be image data such as a face image or fingerprint image. The biometric information of a user may be anything that includes the user's physical characteristics as information.

[0024] The information written in the MRZ of a passport (MRZ information) includes the user's name, nationality, gender, date of birth, passport number, expiration date, etc.

[0025] The gate device 10 and the server device 20 are configured to be able to communicate with each other via wired or wireless communication means. The server device 20 may be installed in the same airport as the gate device 10, or may be installed on a network (cloud).

[0026] [Outline of immigration inspection system operation] Next, the outline of the operation of the immigration inspection system according to the first embodiment will be described with reference to FIG.

[0027] Gate user information relating to a user of the immigration inspection system is registered in the server device 20, for example, before the user departs the country. In other words, the gate user information is registered in the server device 20 before the user's boarding date or before departure on the boarding date. The server device 20 has a database for storing gate user information, and when a user is registered, an entry for each user is added to the database. In the following explanation, the database for storing gate user information is referred to as the "gate user database." The gate user database stores biometric information of at least one or more users and MRZ information written in the machine-readable area of ​​a passport issued to the at least one or more users in association with each other.

[0028] A user visits an airport (where gate device 10 is installed) on the day of boarding. After completing boarding procedures such as check-in and security check, the user moves to the area where gate device 10 is installed (immigration inspection area).

[0029] When a user arrives at the immigration inspection area, the user moves toward the gate device 10.

[0030] When a user approaches the gate device 10 (when the distance between the user and the gate device 10 becomes equal to or shorter than a predetermined distance), the gate device 10 acquires (generates) biometric information from the user. Note that the biometric information acquired by the gate device 10 is the same type of information as the biometric information registered in the server device 20 as gate user information.

[0031] The gate device 10 transmits the acquired biometric information to the server device 20. More specifically, the gate device 10 transmits to the server device 20 a “matching request” including the acquired biometric information.

[0032] The server device 20 searches the gate user database using the received biometric information as a key, and identifies MRZ information corresponding to the received biometric information. The server device 20 transmits a response (response to the matching request) including the identified MRZ information to the gate device 10.

[0033] When a user arrives at the gate device 10, the user holds his / her passport over (touches) a reader (reader 316 described later) installed in the gate device 10. That is, the user touches the passport to the reader of the gate device 10 in the same way that a transportation IC card is touched to a card reader at a station ticket gate.

[0034] The gate device 10 attempts to read the information written on the IC chip of the passport using a reader. If the gate device 10 succeeds in reading the information stored in the IC chip using the MRZ information obtained from the server device 20, it determines that the user is carrying a valid passport and opens the gate.

[0035] The user passes through the gate and immigration inspection is completed.

[0036] In this way, in the immigration inspection system according to the first embodiment, gate user information is registered in advance in server device 20, allowing users to pass through the gate by touching their passport to the reader without opening it.

[0037] Next, details of each device included in the immigration inspection system according to the first embodiment will be described. In the following description, information on a person's "face" will be taken as an example of biometric information to be registered in the server device 20.

[0038] [Server device] 3 is a diagram illustrating an example of a processing configuration (processing module) of the server device 20 according to the first embodiment. Referring to FIG. 3, the server device 20 includes a communication control unit 201, a user information registration unit 202, a first matching unit 203, and a storage unit 204.

[0039] The communication control unit 201 is a unit that controls communication with other devices. Specifically, the communication control unit 201 receives data (packets) from the gate device 10. The communication control unit 201 also transmits data to the gate device 10.

[0040] The user information registration unit 202 is a means for acquiring gate user information and registering the acquired gate user information in a gate user database constructed in the storage unit 204. Any method can be used to acquire the gate user information.

[0041] For example, a staff member at a passport issuing counter may register gate user information in server device 20. Specifically, the staff member operates a scanner to read the page on the passport on which the face photograph and MRZ are recorded. The staff member operates a terminal (a computer installed at the passport issuing counter) to transmit the read data (image data) to server device 20. Alternatively, the read data may be input to server device 20 via an external storage device such as a USB (Universal Serial Bus) memory.

[0042] The above data (image data including the facial photograph and MRZ) may be input to the server device 20 during check-in procedures at the airport. Specifically, when an airline employee checks the user's passport, the employee uses a scanner to read the page on which the facial photograph and MRZ are printed. The airline employee may transmit the read data from a terminal to the server device 20.

[0043] Alternatively, the user may use a so-called automatic check-in machine to read the page on which the face photo and MRZ are recorded. In this case, the data read from the automatic check-in machine is transmitted to the server device 20.

[0044] The user may take a picture of the passport page on which the face photo and MRZ are recorded, and obtain image data including the face photo and MRZ. Specifically, the user takes a picture of the passport page on which the face photo and MRZ are recorded using a smartphone or the like. The smartphone or the like then transmits the image data to the server device 20.

[0045] Alternatively, image data including the face photo and MRZ may be obtained from a database that stores the history of users who have traveled abroad. Specifically, if a face photo and MRZ have been obtained at a manned immigration booth in the past and registered in a database, the image data may be transmitted from the database to the server device 20.

[0046] The user information registration unit 202 acquires image data including the face photograph and MRZ printed on the user's passport by any of the methods described above or other methods.

[0047] The user information registration unit 202 extracts feature points from the face image included in the acquired image data. Since existing technology can be used for the feature point extraction process, detailed description thereof will be omitted. For example, the user information registration unit 202 extracts the eyes, nose, mouth, etc. as feature points from the face image. After that, the user information registration unit 202 calculates the position of each feature point and the distance between each feature point as feature amounts, and generates a feature vector (vector information characterizing the face image) consisting of multiple feature amounts.

[0048] The user information registration unit 202 extracts the MRZ information from the image data including the MRZ information. Specifically, the user information registration unit 201 extracts the MRZ information from the image data using an optical character recognition (OCR) technique.

[0049] The user information registration unit 202 associates the generated feature vector with the extracted MRZ information and registers them in the gate user database.

[0050] Fig. 4 is a diagram showing an example of a gate user database. As shown in Fig. 4, a feature vector generated from a face image is registered as biometric information. In addition, MRZ information corresponding to each piece of biometric information (feature vector) is registered in the gate user database.

[0051] The first matching unit 203 is a means for processing a matching request transmitted by the gate device 10. Specifically, the first matching unit 203 sets the biometric information (feature vector) included in the matching request as a matching target, and performs matching processing with the biometric information registered in the gate user database.

[0052] More specifically, the first matching unit 203 sets the feature vector extracted from the matching request as the matching target, and performs 1-to-N (N is a positive integer, the same applies below) matching with multiple feature vectors registered in the gate user database.

[0053] The first matching unit 203 calculates the similarity between the feature vector to be matched and each of the multiple feature vectors on the registration side. The similarity can be calculated using chi-square distance, Euclidean distance, etc. Note that the greater the distance, the lower the similarity, and the closer the distance, the higher the similarity.

[0054] The first matching unit 203 identifies a feature vector that has a degree of similarity with the feature vector to be matched that is equal to or greater than a predetermined value and is the highest of the plurality of feature vectors registered in the gate user database.

[0055] The first matching unit 203 reads out MRZ information corresponding to the feature vector (biometric information) obtained as a result of the 1:N matching from the gate user database. The first matching unit 203 transmits the read out MRZ information to the gate device 10 that sent the matching request (responds to the matching request).

[0056] For example, in the example of Figure 4, if the feature vector FV obtained from the gate device 10 is most similar to the feature vector FV1 stored in the gate user database and the similarity is greater than or equal to a predetermined value, the corresponding MRZ01 is transmitted to the gate device 10.

[0057] If, as a result of executing the one-to-N matching, the first matching unit 203 finds that no biometric information matching (substantially matching or similar) the biometric information included in the matching request is registered in the gate user database, the first matching unit 203 notifies the gate device 10 of that fact. For example, the first matching unit 203 sets "None" in the feature vector and responds to the gate device 10.

[0058] Alternatively, the first matching unit 203 may notify the gate device 10 that the biometric information included in the matching request does not exist in the gate user database by not sending any response to the gate device 10. In this case, the gate device 10 that sent the matching request recognizes that the biometric information included in the matching request does not exist in the gate user database by not receiving a response from the server device 20 within a predetermined period of time.

[0059] The storage unit 204 stores various information necessary for the operation of the server device 20. As described above, the storage unit 204 also creates a gate user database.

[0060] Fig. 5 is a diagram showing an example of a hardware configuration of the server device 20 according to the first embodiment. The server device 20 can be configured by an information processing device (so-called a computer), and has the configuration shown in Fig. 5. For example, the server device 20 includes a processor 211, a memory 212, an input / output interface 213, and a communication interface 214. The components such as the processor 211 are connected by an internal bus or the like, and are configured to be able to communicate with each other.

[0061] However, the configuration shown in Fig. 5 is not intended to limit the hardware configuration of the server device 20. The server device 20 may include hardware not shown, and may not include the input / output interface 213 as necessary. In addition, the number of processors 211 and the like included in the server device 20 is not intended to be limited to the example shown in Fig. 5, and for example, the server device 20 may include multiple processors 211.

[0062] The processor 211 is, for example, a programmable device such as a central processing unit (CPU), a micro processing unit (MPU), or a digital signal processor (DSP). Alternatively, the processor 211 may be a device such as a field programmable gate array (FPGA), or an application specific integrated circuit (ASIC). The processor 211 executes various programs including an operating system (OS).

[0063] The memory 212 is a random access memory (RAM), a read only memory (ROM), a hard disk drive (HDD), a solid state drive (SSD), etc. The memory 212 stores an OS program, application programs, and various data.

[0064] The input / output interface 213 is an interface for a display device and an input device (not shown). The display device is, for example, a liquid crystal display, etc. The input device is, for example, a device that accepts user operations such as a keyboard and a mouse.

[0065] The communication interface 214 is a circuit, a module, etc. that communicates with other devices. For example, the communication interface 214 includes a NIC (Network Interface Card) or the like.

[0066] The functions of the server device 20 are realized by various processing modules. The processing modules are realized, for example, by the processor 211 executing a program stored in the memory 212. The program can be recorded in a computer-readable storage medium. The storage medium can be a non-transitory medium such as a semiconductor memory, a hard disk, a magnetic recording medium, or an optical recording medium. That is, the present invention can also be embodied as a computer program product. The program can be downloaded via a network or updated using a storage medium storing the program. The processing modules may also be realized by a semiconductor chip.

[0067] [Gate device] Next, the gate apparatus 10 according to the first embodiment will be described.

[0068] Fig. 6 is a diagram showing an example of a hardware configuration of the gate device 10 according to the first embodiment. Referring to Fig. 6, the gate device 10 includes a processor 311, a memory 312, an input / output device 313, a communication interface 314, a camera device 315, a reader 316, and a gate 317.

[0069] The processor 311, memory 312, and communication interface 314 can be the same as the corresponding elements of the server device 20 described with reference to FIG. 5, and therefore detailed description thereof will be omitted.

[0070] The input / output device 313 is a device for inputting information to the gate device 10 (for example, a touch panel) and a device for outputting information (for example, a liquid crystal monitor).

[0071] The camera device 315 is, for example, a digital camera installed so as to be able to capture an image in front of (ahead of) the gate device 10. The camera device 315 can be installed in any location. For example, the camera device 315 may be installed on the main body of the gate device 10, or may be installed in a location away from the gate device 10. The camera device 10 may be installed in any location as long as it is able to capture an image of a user (especially the face of the user) approaching the gate device 10.

[0072] The reader 316 is a device that reads information from a passport. The reader 316 has a function of accessing an IC chip mounted on a passport and a function of scanning the pages of the placed passport. That is, the reader 316 has a function as a card reader that exchanges information (data) with the IC chip of the passport in a non-contact state, and a function as a passport reader (scanner) that acquires an image from the passport. The reader 316 can be installed in any location. However, the reader 316 is preferably installed in a location where a user can easily touch the device with the passport. In the present disclosure, the reader 316 is described as having a function as a card reader and a function as a passport reader, but it goes without saying that these two functions may be realized by different devices.

[0073] When a user passes through immigration, gate 317 transitions from a closed standby state that blocks the user's passage to an open state that allows the user to pass. The type of gate 317 is not particularly limited, and examples include a flapper gate in which a flapper installed on one or both sides of the passage opens and closes, and a turnstile gate with three rotating bars.

[0074] 7 is a diagram showing an example of a processing configuration (processing module) of the gate device 10 according to the first embodiment. Referring to FIG. 7, the gate device 10 includes a communication control unit 301, a biometric information acquisition unit 302, a matching request unit 303, a passport possession determination unit 304, a gate control unit 305, and a storage unit 306.

[0075] The communication control unit 301 is a unit that controls communications with other devices, similar to the communication control unit 201 of the server device 20.

[0076] The biometric information acquiring unit 302 is a means for acquiring biometric information of a user who is about to pass through the gate device 10. For example, the biometric information acquiring unit 302 controls the camera device 315 to acquire a facial image of a person walking toward the device (gate device 10). For example, when the biometric information acquiring unit 302 detects a user's face in an image captured constantly or periodically, it captures the face of the user and acquires the facial image.

[0077] When the size of a face area included in a captured image is equal to or larger than a predetermined value, the biometric information acquisition unit 302 may extract the face area from the image. In this case, by appropriately adjusting the predetermined value (threshold value), it is possible to acquire a face image of a user located at a predetermined distance from the gate device 10. In other words, it is possible to prevent a user located far away from the gate device 10 from being photographed and biometric information that is unsuitable for face authentication (1:N matching by the server device 20) from being transmitted to the server device 20.

[0078] Alternatively, the biometric information acquiring unit 302 may measure the distance between the gate device 10 and the user using a distance sensor or the like, and acquire a facial image of the user who is in a predetermined position.

[0079] The biometric information acquisition unit 302 passes the acquired face image to the matching request unit 303 .

[0080] The matching request unit 303 is a means for requesting the server device 20 to check whether or not the biometric information of a person corresponding to the acquired face image is registered in the gate user database. Specifically, the matching request unit 303 calculates features from the acquired face image and generates a feature vector consisting of the multiple feature values ​​(generates a feature vector corresponding to the biometric information registered in the server device 20).

[0081] The matching request unit 303 generates a matching request including the generated feature vector (biometric information), and transmits it to the server device 20.

[0082] For example, the matching request unit 303 generates a matching request including an identifier of the own device (hereinafter, referred to as a gate identifier), a feature vector, etc. (see FIG. 8). Note that the gate identifier may be a MAC (Media Access Control) address or an IP (Internet Protocol) address of the gate device 10.

[0083] The matching request unit 303 receives a response to the matching request from the server device 20. The matching request unit 303 passes the response from the server device 20 (MRZ information corresponding to the feature vector identified by the 1-to-N matching) to the passport possession determination unit 304.

[0084] The passport possession determination unit 304 is a means for determining whether or not a user attempting to pass through the gate device 10 is carrying a valid passport. Specifically, the passport possession determination unit 304 attempts to use the MRZ information acquired from the matching request unit 303 to read information from the IC chip of the passport held over the reader 316.

[0085] As described in "Security Measures for IC Passports" in Reference 1 below, the information stored in the IC chip of the passport is encrypted (converted) using the MRZ information printed on the same passport as a password. <Reference 1> https: / / www.mofa.go.jp / mofaj / toko / passport / ic_faq.html#11

[0086] If the passport possession determination unit 304 is able to read information from the IC chip using the MRZ information obtained from the server device 20 (if the information is successfully decrypted), it determines that the user attempting to pass through the gate device 10 is in possession of a valid passport.

[0087] On the other hand, if the passport possession determination unit 304 cannot read information from the IC chip using the MRZ information obtained from the server device 20, it determines that the user attempting to pass through the gate device 10 does not possess a valid passport.

[0088] In this way, if the passport possession determination unit 304 is successful in reading information from the IC chip using the MRZ information (if the encryption can be decrypted), it determines that the user possesses a valid passport. Therefore, the passport possession determination unit 304 may or may not check the contents of the information read from the IC chip.

[0089] When the passport possession determination unit 304 determines that the user attempting to pass through the gate device 10 is carrying a valid passport, it instructs the gate control unit 305 to "open the gate."

[0090] The passport possession determination unit 304 does not perform any particular operation if it is determined that the user attempting to pass through the gate device 10 does not possess a valid passport. In other words, if it is determined that the user attempting to pass through the gate device 10 does not possess a valid passport, the gate 317 will not open.

[0091] The gate control unit 305 is a means for controlling the gate 317 provided in the gate device 10. Specifically, the gate control unit 305 controls the opening and closing of the gate 317 in accordance with instructions from the passport possession determination unit 304. The gate control unit 305 closes the gate 317 after a user who is permitted to pass and who possesses a valid passport passes through the gate 317 using a distance sensor or the like.

[0092] [Immigration inspection system in action] Next, the operation of the immigration inspection system according to the first embodiment will be described.

[0093] Fig. 9 is a sequence diagram showing an example of the operation of the immigration system according to the first embodiment. Fig. 9 is a sequence diagram showing an example of the system operation on the boarding date of a user. Prior to the operation of Fig. 9, it is assumed that the "gate user information" of the user is registered in the server device 20 in advance.

[0094] When a user approaches the gate device 10, the gate device 10 acquires biometric information from the user (step S01). For example, the gate device 10 acquires a facial image of the user.

[0095] When the facial image is successfully acquired, the gate device 10 transmits a matching request including the biometric information of the user to the server device 20 (step S02). Specifically, the gate device 10 calculates a feature vector from the facial image, and transmits a matching request including the calculated feature vector to the server device 20.

[0096] The server device 20 that has received the matching request extracts biometric information (feature vector) from the matching request and performs one-to-many matching with the biometric information registered in the gate user database using the feature vector (step S03). The server device 20 searches for biometric information that is most similar to the biometric information obtained from the gate device 10 and has a similarity level equal to or greater than a predetermined value among the multiple pieces of biometric information registered in the gate user database.

[0097] The server device 20 transmits a response including the MRZ information identified as a result of the one-to-N matching to the gate device 10 (the gate device 10 that transmitted the matching request) (step S04).

[0098] The gate device 10 uses the received MRZ information to read information from the IC chip of the passport held over the reader 316, and determines whether the reading was successful (step S05). If the gate device 10 fails to read information from the IC chip (step S05, No branch), it does not perform any special processing. In this case, the gate 317 of the gate device 10 remains in the closed state.

[0099] If the gate device 10 succeeds in reading the information from the IC chip (step S05, Yes branch), it opens the gate 317 (step S06).

[0100] In this way, the gate device 10 acquires the biometric information of the user to be screened, and transmits the biometric information of the user to be screened to the server device 20. The server device 20 searches for the gate user information, identifies MRZ information corresponding to the received biometric information, and transmits the identified MRZ information to the gate device 10. If the gate device 10 is successful in reading information from the IC chip in the passport using the received MRZ information, it controls the gate to allow the user to pass through.

[0101] Here, gate device 10 opens gate 317 only when a user who has registered gate user information in advance in server device 20 presents his / her correct passport to gate device 10. In other words, gate 317 will not open and immigration inspection by gate device 10 will not end normally in the following cases:

[0102] For example, even if a user whose gate user information is not registered in the server device 20 presents his / her passport to the gate device 10, the gate 317 will not open because the corresponding MRZ information cannot be obtained from the server device 20. In this case, the gate device 10 may display a message to that effect (that the necessary information is not registered in the server device) and a message encouraging the user to proceed to a manned immigration inspection area.

[0103] Even if gate user information is registered in the server device 20, if a user attempts to pass through without touching their passport to the reader 316 of the gate device 10, the gate 317 will not open. This is because the gate device 10 is a device that automatically performs immigration inspections, and an important function of the gate device 10 is to confirm that the user is carrying the correct passport. In other words, even if gate user information is registered in advance in the server device 20, the gate 317 will not open unless it is confirmed that the user whose information is registered is carrying a passport. In this case, the gate device 10 may display or provide audio guidance, etc., to urge the user to touch the correct passport (the user's own passport) to the reader 316.

[0104] Alternatively, it is possible that even if a user touches the passport to the reader 316, the gate device 10 cannot read the MRZ information because the passport is in a case or the like. In such a case, the gate device 10 may display a message to encourage the user to remove the passport from the case or the like and touch it to the reader 316, or to open the passport and touch it to the reader 316.

[0105] Alternatively, the gate 317 will not open if the user presents someone else's passport instead of the user's own passport to the gate device 10. For example, even if the gate user information of a parent and child are each registered in the server device 20, the gate 317 will not open if the parent presents the child's passport to the gate device 10. In this case as well, the gate device 10 may display or provide audio guidance, etc., to urge the user to place the correct passport (the user's own passport) in contact with the reader 316.

[0106] As described above, in the immigration inspection system according to the first embodiment, biometric information of a user who wishes to use the gate device 10 is registered in advance in the server device 20. Then, when the user appears in front of the gate device 10 on the boarding day, the gate device 10 acquires the biometric information of the user and inquires whether the acquired biometric information is registered in the server device 20 (requests the server device 20 to perform one-to-many matching using the biometric information). If it is confirmed as a result of the matching that the biometric information of the user is registered in the server device 20, the gate device 10 checks whether the passport presented by the user is truly the passport of the user. Specifically, the gate device 10 checks whether information can be read from the IC chip of the passport using the MRZ information identified by the server device 20 as a result of face authentication. As described above, in order to extract information from the IC chip, the MRZ information written in the same passport is required. Therefore, the fact that information is successfully read from the IC chip using the MRZ information indicates that the MRZ information acquired from the server device 20 matches the MRZ information of the passport presented by the user. Based on this match, the gate device 10 determines that the user in front of it has the correct passport, and opens the gate (allowing the user to pass through immigration). In this way, in the first embodiment, if information is registered in the database in advance, the user can complete immigration by simply touching their passport to the gate device 10 without opening it. As a result, it is possible to realize a smooth immigration process that is highly convenient for the user.

[0107] [Second embodiment] Next, the second embodiment will be described in detail with reference to the drawings.

[0108] In the first embodiment, it is assumed that there is no contradiction (discrepancy) between the biometric information and MRZ information of the gate user information registered in the server device 20. When the gate user information is registered by an official of a public institution, it is difficult to imagine that the above-mentioned contradiction will occur, but when the user registers the gate user information in the server device 20, there is a slight possibility that the above-mentioned contradiction will occur.

[0109] If the above-mentioned inconsistency exists, a problem occurs because correct immigration inspection cannot be performed. In the second embodiment, a case will be described in which a more reliable immigration inspection is realized by performing a matching process also in the gate device 10.

[0110] In the second embodiment, the schematic configuration of the immigration system and the processing configuration of the server device 20 can be the same as in the first embodiment, so the explanation corresponding to Figures 2 and 3 will be omitted. The following explanation will focus on the differences between the first and second embodiments.

[0111] Fig. 10 is a diagram showing an example of a processing configuration (processing module) of the gate device 10 according to the second embodiment. Referring to Fig. 10, a second collation unit 307 is added to the configuration shown in Fig. 7.

[0112] The second matching unit 307 is a means for matching (one-to-one matching) whether or not the biometric information of the user matches the biometric information read from the IC chip of the passport that the user touches to the reader 316 .

[0113] The biometric information acquiring unit 302 stores the acquired biometric information (for example, a facial image of the user captured by the camera device 315) in the storage unit 306.

[0114] When passport possession determination unit 304 has succeeded in reading information from the IC chip using the MRZ information acquired from server device 20, it passes the facial image from the read information to second verification unit 307.

[0115] The second matching unit 307 performs matching (one-to-one matching) between the face image acquired from the passport possession determination unit 304 and the face image stored in the storage unit 306. Specifically, the second matching unit 307 calculates a feature vector from each of the two images. Thereafter, the second matching unit 307 calculates the similarity (e.g., Euclidean distance) between the two images, and determines whether the two images are face images of the same person based on the result of threshold processing on the calculated similarity. For example, if the similarity is greater than a predetermined value (if the distance is shorter than a predetermined value), the second matching unit 307 determines that the two face images are of the same person.

[0116] If the second matching unit 307 succeeds in one-to-one matching (if the facial image of the user in front matches the facial image read from the IC chip in the presented passport), it instructs the gate control unit 305 to open the gate.

[0117] In this way, when the gate device 10 successfully matches the biometric information acquired from the user with the biometric information read from the IC chip presented by the user, it opens the gate 317 to allow the user to pass through. That is, when the distance between the feature vectors obtained from the two pieces of biometric information is shorter than a predetermined distance and it can be determined that the two pieces of biometric information are substantially identical, the gate device 10 controls the gate 317 to allow the user to pass through.

[0118] As described above, in the second embodiment, one-to-one matching is performed between a face image of a user obtained from the camera device 315 attached to the gate device 10 and a face image read from an IC chip of a passport presented by the user. The gate device 10 opens the gate 317 if the one-to-one matching is successful in authenticating the user. That is, even if there is a contradiction in the gate user information registered in the server device 20, which would be a problem in the first embodiment, the second embodiment performs final authentication to prevent a user who should not pass through the gate device 10 from passing through the gate device 10. In the second embodiment, one-to-one matching is performed in the gate device 10 after one-to-N matching in the server device 20, thereby ensuring that a user who is about to pass through the gate device 10 has a correct passport (the user's own passport).

[0119] [Variations] The configuration, operation, etc. of the immigration inspection system described in the above embodiment are merely examples and are not intended to limit the system configuration, etc.

[0120] For example, all or part of the functions of server device 20 may be realized by gate device 10. Alternatively, the gate user database provided in server device 20 may be constructed in another database server. The immigration inspection system only needs to include a storage means (storage unit 204) for storing gate user information, a matching means (first matching unit 203) for performing one-to-many matching using the gate user information, a determination means for determining whether a user possesses a passport (passport possession determination unit 304), etc.

[0121] In the above embodiment, a case has been described in which a feature vector calculated from a facial image is transmitted and received between the gate device 10 and the server device 20, but a facial image may be transmitted from the gate device 10 to the server device 20. In this case, a matching request including a facial image is transmitted from the gate device 10 to the server device 20, and the server device 20 calculates a feature vector from the received facial image and executes one-to-N matching. Alternatively, a facial image instead of a feature vector may be registered in the user information database of the server device 20, and a feature amount may be calculated each time matching is performed.

[0122] In the above embodiment, it is assumed that the gate devices 10 are installed separately from each other, and it is not considered that a user heading for a certain gate device 10 presents a passport to a gate device 10 different from the gate device 10. However, as shown in FIG. 11, an installation form in which users line up in a row and walk to an open gate device 10 when a gate device 10 that has completed the inspection is available is also conceivable. In this case, even if each gate device 10 photographs the lined-up users and obtains a face image, it is not possible to know whether the users will ultimately present their passports to the gate device itself. Therefore, the server device 20 may transmit a response to the response request (a response including MRZ information) not only to the sender of the response request but also to other gate devices 10. For example, in FIG. 11, consider a case in which the gate device 10-2 photographs users lined up in a row and transmits a matching request including the biometric information of the users. In this case, the server device 20 transmits the MRZ information obtained as a result of the 1:N matching not only to the gate device 10-2 that is the sender of the matching request but also to the gate devices 10-1 and 10-3. As a result, as shown in Fig. 11, even if a user heads to gate device 10-1 instead of gate device 10-2, immigration inspection for the user (success or failure of reading information from the IC chip based on MRZ information) can be carried out because gate device 10-1 has MRZ information corresponding to the passport of the user.

[0123] In the above embodiment, it is assumed that one face region is included in one image, but depending on the situation at the screening site, multiple face regions may be included in one image. In this case, the server device 10 may extract the face region closest to the server device 10 and transmit the biometric information to the server device 20. For example, the server device 10 may calculate the area of ​​each face region and extract the face region with the largest area. Alternatively, a depth camera capable of measuring the distance in the depth direction may be used as the camera device 10, and the distance from the camera device 10 may be measured to extract the face image of the person who is closer.

[0124] In addition, the present disclosure provides for smooth immigration inspection by completing the immigration inspection by simply contacting the passport with the card reader 316 without the user opening the passport, but does not exclude the user from opening the passport. For example, if a certain condition is met, the user may be asked to open the passport and the inspection may be performed using the passport. For example, if the matching result by the server device 20 is not very high (if the similarity is lower than a certain threshold), the server device 20 notifies the gate device 10 of the above (the matching result is poor) in addition to the MRZ information. The gate device 10 that receives the notification may instruct the user to open the passport and place the page on which the face photo and MRZ are written on the reader 316. The gate device 10 obtains biometric information (face image) from the user (the user in front of the user) and performs one-to-one matching using the biometric information and the face image obtained from the IC chip of the passport. If the result of the matching indicates that the user is holding the correct passport, the gate device 10 may open the gate 317.

[0125] Alternatively, when gate device 10 is unable to read information from the IC chip of the passport using the MRZ information received from server device 20, it may prompt the user to be screened to open the passport and place it on reader 316. In this case as well, if gate device 10 determines as a result of the comparison that the user is carrying a valid passport, it opens gate 317.

[0126] The gate device 10 may change its operation depending on the attributes of the user. For example, in immigration inspection, fingerprints do not need to be taken for people with Japanese nationality, but fingerprints must be taken for people without Japanese nationality. Therefore, the gate device 10 may determine the nationality of the user (Japanese nationality, non-Japanese nationality) based on the MRZ information acquired from the server device 20, and change the control including the gate opening / closing operation depending on the result. For example, in the case of immigration inspection of foreigners, the gate device 10 may open the gate 317 after fingerprint collection and inspection of the collected fingerprints are normally completed.

[0127] In the above embodiment, the case where the gate device 10 is installed in one airport (departure airport or arrival airport) has been described, but the gate device 10 may be installed in each of the departure airport and the arrival airport (see FIG. 12). A user whose gate user information has already been registered in the server device 20 does not need to re-register the gate user information, and can undergo smooth immigration inspection using the gate device 10 disclosed in the present application.

[0128] Alternatively, as shown in FIG. 12, when the gate device 10 disclosed in the present application is installed at the departure airport and the arrival airport, the gate user information registered in the server device 10 may be deleted for each flight of the user. This is because the MRZ information including the biometric information and name registered in the server device 20 belongs to personal information, and it is not desirable to hold such personal information for a long period of time. In this case, when the server device 20 receives a notice from the arrival gate device 10 (gate device 10-5 in the example of FIG. 12) that the immigration inspection of the user has been normally completed, the server device 20 deletes the gate user information of the user. Alternatively, when the departure gate device 10 (gate device 10-4 in the example of FIG. 12) has normally completed the departure immigration inspection of the user, the server device 20 may notify the arrival gate device 10-5 of the notice. In this case, the gate device 10-5 may request the server device 20 to delete the corresponding gate user information when the immigration inspection of the user is completed.

[0129] In the above embodiment, the operation of the gate device 10 and the server device 20 has been described mainly using "face" as biometric information, but the biometric information available in the present disclosure is not limited to "face". Other biometric information such as iris can be used.

[0130] The form of data transmission and reception between the gate device 10 and the server device 20 is not particularly limited, but the data transmitted and received between these devices may be encrypted. Since the face image and the feature amount calculated from the face image are personal information, it is desirable to transmit and receive encrypted data in order to appropriately protect the personal information.

[0131] In the above embodiment, the case where information is obtained from the IC chip of a passport using MRZ information has been described, but the method disclosed in the present application can be applied to other methods. That is, when reading information from an IC chip mounted on a medium such as a card similar to a passport, information on a password or key equivalent to MRZ information may be used.

[0132] In the flow charts (flow charts, sequence diagrams) used in the above description, multiple steps (processes) are described in order, but the order of execution of the steps executed in the embodiments is not limited to the order described. In the embodiments, the order of the steps shown in the figures can be changed to a degree that does not interfere with the content, such as executing each process in parallel.

[0133] The above-mentioned embodiments have been described in detail to facilitate understanding of the present disclosure, and it is not intended that all of the configurations described above are necessary. In addition, when a plurality of embodiments are described, each embodiment may be used alone or in combination. For example, it is possible to replace a part of the configuration of an embodiment with the configuration of another embodiment, or to add the configuration of another embodiment to the configuration of an embodiment. Furthermore, it is possible to add, delete, or replace a part of the configuration of an embodiment with another configuration.

[0134] From the above explanation, it is clear that the present invention has industrial applicability, and the present invention is suitably applicable to immigration inspection systems at airports, etc.

[0135] A part or all of the above-described embodiments can be described as, but is not limited to, the following supplementary notes. [Appendix 1] An acquisition unit (101, 302) for acquiring biometric information of a user to be examined; a matching request unit (102, 303) that stores a user's biometric information in association with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user, and requests a server device (20) to match the biometric information of the user to be examined; a control unit (103, 305) for controlling a gate (317) to allow the subject user to pass through when the MRZ information identified by the collation is used to successfully read information from an IC (Integrated Circuit) chip in the passport; A gate device (10, 100). [Appendix 2] The control unit (103, 305) The gate device (10, 100) described in Appendix 1 controls the gate (317) to allow the user to pass if the biometric information acquired from the user to be screened is successfully matched with the biometric information read from the IC chip. [Appendix 3] 3. The gate device (10, 100) according to claim 1 or 2, further comprising a reader (316) capable of reading information from a passport, the reader (316) reading information from the IC chip. [Appendix 4] The gate device (10, 100) according to any one of Supplementary Notes 1 to 3, wherein the biometric information is information relating to a person's face. [Appendix 5] The matching request unit (102, 303) The gate device (10, 100) according to appendix 4, which transmits a feature vector generated from a face image of the user to be screened to the server device (20) as biometric information of the user to be screened. [Appendix 6] A gate device (10, 100) as described in any one of Appendices 1 to 5, which, if information cannot be read from the IC chip of the passport using the received MRZ information, prompts the user to be screened to open his / her passport and place it on the reader (316). [Appendix 7] a storage unit (204) for storing, as gate user information, biometric information of a user and MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user in association with each other; a matching unit (203) that controls a gate (317) according to the result of the immigration inspection of the user, and searches for gate user information using biometric information of the user to be inspected received from a gate device (10, 100) to identify the MRZ information corresponding to the received biometric information; A communication control unit (201) that transmits the specified MRZ information to the gate device (10, 100); A server device (20). [Appendix 8] The storage unit (204) stores the gate user information relating to each of a plurality of users, The server device (20) described in Appendix 7, wherein the matching unit (203) identifies the MRZ information corresponding to the received biometric information by performing a one-to-N (N is a positive integer) matching with the biometric information received from the gate device (10, 100) as the matching target. [Appendix 9] The server device (20) according to claim 7 or 8, wherein the biometric information is information relating to a person's face. [Appendix 10] The server device (20) described in Appendix 9, wherein the matching unit (203) acquires a feature vector calculated from a facial image from the gate device (10, 100), calculates a distance between the feature vector stored as gate user information and the feature vector acquired from the gate device (10, 100), and identifies the MRZ information corresponding to the received biometric information based on the calculated distance. [Appendix 11] a server device (20) for storing, as gate user information, biometric information of a user and MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user in association with each other; a gate device (10, 100) that controls the gate in accordance with the result of the immigration inspection of a user; Including, The gate device (10, 100) acquires biometric information of the user to be examined and transmits the biometric information of the user to be examined to the server device (20); the server device (20) searches the gate user information to identify the MRZ information corresponding to the received biometric information, and transmits the identified MRZ information to the gate device (10, 100); An immigration inspection system in which the gate device (10, 100) controls the gate (317) to allow the user to pass through if it successfully reads information from the IC (Integrated Circuit) chip in the passport using the received MRZ information. [Appendix 12] In the gate device (10, 100), Obtain biometric information of the user to be screened, A server device (20) stores the biometric information of a user in association with MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user, and requests the server device (20) to verify the biometric information of the user to be examined; A method for controlling a gate device (10, 100), which controls a gate so that the user to be examined can pass through when the MRZ information specified by the collation is used to successfully read information from an IC (Integrated Circuit) chip in the passport. [Appendix 13] A server device (20) having a storage unit (204) for storing, as gate user information, biometric information of a user and MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user in association with each other, a gate control device (10, 100) that controls a gate according to the result of the immigration inspection of the user; searching for the gate user information using biometric information of the user to be inspected received from the gate device (10, 100) and identifying the MRZ information corresponding to the received biometric information; A control method for a server device (20) that transmits the specified MRZ information to the gate device (10, 100). [Appendix 14] A computer (311) mounted on the gate device (10, 100) A process of acquiring biometric information of a user to be screened; A process of requesting a server device (20) to match the biometric information of a user to the biometric information of the user to be examined, the server device (20) storing the biometric information of the user in association with the MRZ (Machine Readable Zone) information written in the machine readable area of ​​the passport issued to the user; a process of controlling a gate to allow the subject user to pass through when the MRZ information identified by the collation is successfully read from the IC (Integrated Circuit) chip in the passport; A program that executes the following. [Appendix 15] A computer (211) installed in a server device (20) having a storage unit (204) that stores a user's biometric information and MRZ (Machine Readable Zone) information written in a machine readable area of ​​a passport issued to the user in association with each other as gate user information, A process of searching for gate user information and identifying the MRZ information corresponding to the received biometric information of a user to be screened, using biometric information of the user received from a gate device (10, 100) that controls a gate in accordance with the result of the user's immigration inspection; A process of transmitting the specified MRZ information to the gate device (10, 100); A program that executes the following. In addition, the forms of Supplementary Notes 11 to 15 can be developed into the forms of Supplementary Notes 2 and the like, similarly to the forms of Supplementary Notes 1 and 7.

[0136] The disclosures of the above cited prior art documents are incorporated herein by reference. Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments. It will be understood by those skilled in the art that these embodiments are merely illustrative and that various modifications are possible without departing from the scope and spirit of the present invention. In other words, the present invention naturally includes various modifications and amendments that a person skilled in the art can make in accordance with the entire disclosure, including the scope of the claims, and the technical ideas. [Explanation of symbols]

[0137] 10, 10-1~10-5, 100 Gate device 20 Server device 101 Acquisition Department 102, 303 Matching request section 103 Control section 201, 301 Communication control unit 202 User Information Registration Department 203 First Collation Unit 204, 306 Storage section 211, 311 processors 212, 312 memory 213 Input / Output Interface 214, 314 Communication Interface 302 Biometric information acquisition unit 304 Passport Possession Determination Department 305 Gate control section 307 Second Collation Unit 313 I / O device 315 Camera Equipment 316 Reader Gate 317

Claims

1. An acquisition unit that acquires biometric information of a user to be examined; a matching request unit that requests a server device that stores a user's biometric information and MRZ (Machine Readable Zone) information recorded in a machine readable area of ​​the user's passport in association with each other as gate user information to match the biometric information of the user to be screened; Using the MRZ information identified by the collation, information is read from an IC (Integrated Circuit) chip in the passport of the user to be examined, and a gate is controlled based on the read information; A gate device comprising: a control unit that requests the server device to delete the gate user information of the user to be screened.

2. The control unit is If communication with the IC chip of the passport cannot be established, a first message is displayed. If the read information cannot be decoded by the MRZ information identified by the comparison, a second message is displayed. The gate device according to claim 1.

3. The control unit is When the biometric information acquired from the user to be screened is successfully matched with the biometric information included in the information read from the IC chip, the gate is controlled so as to allow the user to pass through. The gate device according to claim 1.

4. The matching request unit, transmitting a feature vector generated from the facial image of the user to be screened to the server device as biometric information of the user to be screened; The gate device according to claim 1.

5. a server device that associates a user's biometric information with MRZ (Machine Readable Zone) information written in a machine readable area of ​​the user's passport and stores the associated information as gate user information; a plurality of devices for controlling gates in accordance with the results of the immigration inspection of users; The device acquires biometric information of a user to be examined, requesting the server device to verify the biometric information of the user to be examined; Using the MRZ information identified by the collation, information is read from an IC (Integrated Circuit) chip in the passport of the user to be examined, and a gate is controlled based on the read information; requesting the server device to delete the gate user information of the user to be screened; Immigration inspection system.

6. In the gate device, Obtain biometric information of the user to be screened, A server device is provided which stores the biometric information of a user in association with MRZ (Machine Readable Zone) information recorded in a machine readable area of ​​the user's passport as gate user information, and requests the server device to verify the biometric information of the user to be screened; Using the MRZ information identified by the collation, information is read from an IC (Integrated Circuit) chip in the passport of the user to be examined, and a gate is controlled based on the read information; requesting the server device to delete the gate user information of the user to be screened; A method for controlling a gate device.

7. The computer installed in the gate device A process of acquiring biometric information of a user to be screened; A process of requesting a server device, which stores a user's biometric information and MRZ (Machine Readable Zone) information recorded in a machine readable area of ​​the user's passport in association with each other as gate user information, to verify the biometric information of the user to be screened; A process of reading information from an IC (Integrated Circuit) chip in the passport of the user to be examined using the MRZ information identified by the collation, and controlling a gate based on the read information; a process of requesting the server device to delete the gate user information of the user to be screened; A program for executing the above.

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