JP6155857B2 - Entrance / exit management device and entrance / exit management system - Google Patents

Description

  The present invention relates to an entrance / exit management device and an entrance / exit management system using face authentication technology.

  Conventionally, an entrance / exit management system using an IC card has been widely introduced for the purpose of restricting access to an office or factory room. In such an entrance / exit management system, when entering a room where access is restricted, the user is allowed to enter the room by holding the IC card distributed in advance over the IC card reader or the like.

  In the office area where the entrance / exit management system as described above is adopted, the same room may be entered and exited several times a day, and an operation of holding the IC card each time is required. May be complicated. In addition, for example, in a factory where the entrance / exit management system as described above is adopted, if an IC card is carried using a strap or the like, the IC card or the strap may be caught in the machine. It is necessary to carry the card in a pocket of work clothes. If it does so, it will be necessary to take out the IC card put in the pocket of work clothes, etc. whenever it goes in and out of the restricted room, and may give a user a complicated feeling.

  Further, as a technique related to an entrance / exit management system that does not require an operation of holding an IC card, a video surveillance system disclosed in Patent Document 1 is known. In this video surveillance system, the passage time when the user passes the optimum photographing point is calculated based on the communication time between the hands-free tag possessed by the user and each authentication device, and the image is taken at the calculated passage time. The video is configured to be recorded.

JP 2012-129858 A

  In addition, it is known that a system using a face authentication technique is adopted as an entrance / exit management system that does not require an operation of holding an IC card and ensures high security. In such a system, face images of users permitted to enter and exit are stored and registered in advance in a database of the server, etc., and a face image captured by a camera installed near an entrance and a registered face image An authentication process is performed based on the above.

  However, in the system as described above, it is necessary to capture the face images of all users who should be permitted to enter and exit and register them in a database or the like in advance, and there is a problem that enormous man-hours are required for registration work. . In particular, as the number of users to be registered increases, the registration work increases and the above problem becomes remarkable.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an entrance / exit management device and an entrance / exit management system that can easily realize authentication processing using face authentication technology. There is to do.

In order to achieve the above object, the invention described in claim 1 of the claims includes an entrance / exit management device (20, 20) for locking and unlocking the electric key (12) provided on the door (11, 11a to 11c). 20a to 20c), a reading means (22) for reading the specific information from the recording medium when the recording medium (C) on which the specific information for specifying the user is recorded is approached, and the user's face Imaging means (23) that captures images, storage means (21b) in which a plurality of pieces of the specific information permitting entrance / exit are stored in advance as entrance / exit permission information, and a face image captured by the imaging means can be stored; First authentication means (21a) for performing authentication by comparing the face image captured by the imaging means with a plurality of entrance / exit permitted face images stored as face images permitted to enter the storage means; The first authentication means Second authentication means (21a) for performing authentication by comparing the specific information read by the reading means with the plurality of entry / exit permission information stored in the storage means when the authentication by the reading means fails And an unlocking / unlocking control means (21a) for bringing the electric key into an unlocked state in response to successful authentication by the first authenticating means or successful authentication by the second authenticating means, and authentication by the second authenticating means A face image captured by the imaging unit upon success is additionally stored in the storage unit as the entry / exit permission face image, and is captured by the imaging unit upon authentication failure by the second authentication unit. A face image is stored in the storage means as a face image that is not permitted to enter the room, and the locking / unlocking control means is compatible with the face image that is not allowed to enter during authentication by the first authentication means. When the face image is compared, without performing authentication by the second authentication means, characterized in that the electrical key lock state.
The invention according to claim 2 of the claims is an entrance / exit management device that locks / unlocks an electric key provided on a door, and is close to a recording medium on which specific information for specifying a user is recorded. A reading unit that reads the specific information from the recording medium, an imaging unit that captures the face of the user, and a plurality of the specific information that is permitted to enter and leave the room as entrance / exit permission information. A storage unit capable of storing a face image captured by the imaging unit, a face image captured by the imaging unit, and a plurality of entrance / exit permitted face images stored as face images permitted to enter the storage unit; Since the entry / exit permission face image is not stored in the storage means, the reading means reads when the authentication by the first authentication means fails. Is A second authenticating unit for performing authentication by comparing the specific information with a plurality of the entry / exit permission information stored in the storage unit; and an authentication success by the first authenticating unit or an authentication by the second authenticating unit A lock / unlock control unit that unlocks the electric key in response to success, and a face image captured by the image capturing unit upon successful authentication by the second authentication unit is used as the entry / exit permitted face image. It is additionally stored in the storage means.
In addition, the code | symbol in each said parenthesis shows the correspondence with the specific means as described in each embodiment mentioned later.

  In the first aspect of the present invention, the first authentication unit compares the face image picked up by the image pickup unit with a plurality of entrance / exit permission face images stored in the storage unit, or the second authentication is successful. When the authentication unit succeeds in the authentication by comparing the specific information read by the reading unit and the plurality of entry / exit permission information stored in the storage unit when the authentication by the first authentication unit fails, The electric key is controlled to be unlocked by the control means. Then, the face image picked up by the image pickup means upon successful authentication by the second authentication means is added and stored in the storage means as an entry / exit permission face image.

As a result, when a user who is permitted to enter and leave the room first reads a specific information by bringing a recording medium such as an IC card close to the reading means, the face image of the user is stored in the storage means as an entry / exit permission face image. After that, the electric key is unlocked only by imaging the face of the user. This eliminates the need for the user who is permitted to enter and leave the room to bring the recording medium closer to the reading means. In particular, since the face image captured when the recording medium is first read is added and stored as an entry / exit permission face image in the storage means, the face image of the user permitted to enter / exit is stored in advance. There is no need to remember. Therefore, authentication processing using face authentication technology can be easily realized.
According to the first aspect of the present invention, the face image captured by the imaging unit when the authentication by the second authentication unit fails is stored in the storage unit as an entry / exit non-permitted face image, and the entry / exit at the time of authentication by the first authentication unit When a face image corresponding to a non-permitted face image is to be compared, the electric key is locked without performing authentication by the second authentication means.
As a result, a user who has a recording medium in which specific information for which entry / exit is permitted is not recorded has a lock on the electric key only by capturing a face image. It is surely prevented and security can be improved.
In the invention of claim 2, whether the first authentication unit succeeds in authentication by comparing the face image captured by the imaging unit and a plurality of entrance / exit permitted face images stored in the storage unit, Since the entry / exit permission face image is not stored in the storage means in the second authentication means, the specific information read by the reading means and the storage means when the authentication by the first authentication means fails are stored in the storage means. If the authentication is successful by comparing a plurality of pieces of entry / exit permission information, the lock / unlock control means controls the electric key to the unlocked state. Then, the face image picked up by the image pickup means upon successful authentication by the second authentication means is added and stored in the storage means as an entry / exit permission face image.
As a result, the user who is permitted to enter and leave the room first reads the recording medium such as an IC card.
When the specific information is read close to the face, the face image of the user is stored as an entry / exit permission face image
After being stored in the means, the electric key is unlocked only by imaging the face of the user.
This eliminates the need for the user permitted to enter and leave the room to bring the recording medium closer to the reading means.
be able to. In particular, the face image captured when the recording medium is read for the first time is
Since it is stored in the storage means as an image, a face image of a user permitted to enter and leave the room is preliminarily stored.
Therefore, it is not necessary to store in the storage means. Therefore, authentication processing using face recognition technology is not allowed.
It can be easily realized.

In the invention of claim 3 , the face images of some users among the plurality of users permitted to enter and leave the room are stored in advance as the entry / exit permitted face images. For this reason, for example, by temporarily storing the face image of the user who permits entry / exit temporarily in the storage means as an entry / exit permission face image, temporary entry / exit is possible without separately preparing a storage medium such as an IC card. Can be easily permitted.

  In the invention of claim 4, since the expiration date usable for authentication in the first authentication means is set in the entrance / exit permission face image, the storage medium is periodically read to update the entrance / exit permission face image. Can improve security.

  In the invention of claim 5, since the user's face is imaged by the imaging means when the detection means detects the intrusion of the user into the imageable area, the imaging timing by the imaging means can be appropriately controlled. Power saving can be achieved.

  In the invention of claim 6, the imaging means is set narrow so that the imaging range captures the face of one of a plurality of users heading for the door. Thereby, even when a plurality of users are facing the door, it is easy to capture the face image of one user, and it is possible to suppress the simultaneous capturing of the face images of a plurality of users.

  In the invention of claim 7, authentication histories in a plurality of entrance / exit management devices are managed by a server, and each entrance / exit management device receives entrance / exit permission information from the server, and the authentication result of the first authentication means And at least a part of the authentication result of the second authentication means is transmitted to the server as an authentication history.

  Thereby, since the server can acquire the authentication history from each entry / exit management device, it is possible to easily create the passage history of the user passing through the door whose locking / unlocking is controlled by each entry / exit management device. In particular, since the authentication process is performed based on the entrance / exit permission face image and the entry / exit permission information stored in the storage means of each entry / exit management device, the authentication process is performed even when a failure or the like occurs in the server. Can continue.

  In the invention of claim 8, in all the entrance / exit management devices belonging to the group, the entrance / exit permission face image stored in the storage means is transmitted to the server in response to the successful authentication of the second authentication means, and the other entrance / exit management devices When the entry / exit permission face image transmitted from the server to the server is received from the server, the entry / exit permission face image is additionally stored in the storage means.

  As a result, the same entry / exit permission face image is stored in the storage means of all the entry / exit management devices belonging to the group, and therefore one entry / exit management device permits entry / exit by face authentication. Since other room entry / exit management devices in the same group are permitted to enter / exit by face authentication, it is possible to improve convenience while ensuring security. In addition, by classifying each room entry / exit management device so that it belongs to one of a plurality of groups, and limiting the entry / exit permission information used in that group according to the usage environment, etc., the security level for each group Can be easily controlled.

It is explanatory drawing which shows schematically the structure of the entrance / exit management system which employ | adopts the entrance / exit management apparatus which concerns on 1st Embodiment. It is a block diagram which shows roughly the electrical structure of an entrance / exit management apparatus. It is a block diagram which shows roughly the electrical structure of a server. It is a flowchart which illustrates the flow of the locking / unlocking process performed in the control circuit of a control controller in 1st Embodiment. It is explanatory drawing which shows schematically the structure of the entrance / exit management system which employ | adopts the some entrance / exit management apparatus which concerns on 2nd Embodiment. It is a flowchart which illustrates the flow of the locking / unlocking process performed in the control circuit of a control controller in 2nd Embodiment. It is explanatory drawing which shows schematically the structure of the entrance / exit management system which employ | adopts the some entrance / exit management apparatus which concerns on the modification of 2nd Embodiment. It is a flowchart which illustrates the flow of the locking / unlocking process performed in the control circuit of a control controller in the modification of 1st Embodiment.

[First Embodiment]
Hereinafter, an entrance / exit management device and an entrance / exit management system according to a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram schematically showing the configuration of an entrance / exit management system 10 that employs an entrance / exit management device 20 according to the first embodiment.
As shown in FIG. 1, an entrance / exit management system 10 according to the present embodiment is a system for managing entrance / exit of a room in which entry is restricted, and an electric key 12 installed on a door 11 of this room is applied. An entrance / exit management device 20 that locks and a server 30 that manages an authentication history in the entrance / exit management device 20 are provided.

  In addition, the door 11 is comprised by the slide type or the rotation type, for example. The electric key 12 is a known electromagnetic electric key, and is disposed on the wall surface in the vicinity of the door 11 to be locked and unlocked, and the locked state is maintained according to the input of the locking signal. The unlocking operation is performed according to the input. Note that various known electric keys can be used as the electric key 12 as long as the door 11 can be locked and unlocked by electric control.

First, the entrance / exit management device 20 will be described with reference to FIG. FIG. 2 is a block diagram schematically showing the electrical configuration of the entrance / exit management device 20.
As shown in FIG. 2, the entrance / exit management device 20 mainly includes a controller 21, an IC card reader 22, a camera 23, a human sensor 24, and the like.

  The controller 21 includes a control circuit 21a, a memory 21b, a communication unit 21c, and the like. The control circuit 21a is composed of a microcomputer, for example, and controls the entire controller 21 according to a control program stored in the memory 21b. The controller 21 is configured to be able to acquire information from the IC card reader 22, the camera 23, the human sensor 24, and the like via the communication unit 21c, and functions to perform various types of information processing according to the acquired information. .

  Further, the controller 21 is configured to be able to control the electric key 12 via the communication unit 21c, and outputs a locking signal to the electric key 12 at the time of locking in accordance with a locking / unlocking process described later. When unlocked, an unlock signal is output to the electric key 12. The control circuit 21a may correspond to an example of “locking / unlocking control unit”.

  The memory 21b is configured by a known storage medium such as a ROM, a RAM, or a nonvolatile memory, and stores a program for executing a locking / unlocking process, entry / exit permission information described later, an image captured by the camera 23, and the like. It is configured to be possible. The memory 21b may correspond to an example of “storage means”.

  The communication unit 21c is configured by, for example, a known LAN interface, and performs wireless communication or wired communication with external devices such as the IC card reader 22, the camera 23, the human sensor 24, the electric key 12, and the server 30. It functions as an interface to do. The communication unit 21c may correspond to an example of “apparatus side communication unit”.

  The IC card reader 22 can correspond to an example of “reading means” for reading an IC card C in which specific information (for example, a unique ID) for specifying a user is recorded. It is configured as a known IC card reader that reads a card. The IC card reader 22 is arranged on the wall surface near the door 11 and functions to output specific information read from the IC card C brought close to the controller 21.

  Here, the IC card C may correspond to an example of a “recording medium”, and is a user who is permitted to enter and leave a room where entry is restricted as described above (hereinafter also referred to as an entry / exit permitted person). ) As well as regular users. A plurality of pieces of identification information for identifying the person who is permitted to enter and leave the room is stored in advance in the memory 21b as the entry / exit permission information.

  The camera 23 can correspond to an example of an “imaging unit”, and includes, for example, a known camera (a known CCD camera, CMOS camera, or the like) that captures an image with a solid-state imaging device. This camera 23 is for imaging the face of a person who goes to the door 11 to enter the room, and in particular, one of the plurality of users whose imaging range is directed to the door 11 is closest to the door 11. It is arranged on the ceiling or wall surface so as to be narrowly set so as to image the face.

  In the present embodiment, the camera 23 is configured to output an image captured at the timing of receiving an instruction from the controller 21 to the controller 21. However, the present invention is not limited thereto, and controls the captured image. It may be configured to always output to the controller 21.

  The human sensor 24 can correspond to an example of a “detecting unit”, and includes, for example, an infrared sensor, an ultrasonic sensor, a visible light sensor, or the like. The human sensor 24 is arranged on the ceiling or wall surface so as to detect that the user has entered the area where the camera 23 can capture images. The human sensor 24 functions to output a predetermined detection signal to the controller 21 when detecting a user who desires to enter the room.

Next, the server 30 will be described with reference to FIG. FIG. 3 is a block diagram schematically showing the electrical configuration of the server 30.
The server 30 is configured as a computer that manages authentication history, entry / exit permission information, and the like in the entrance / exit management device 20, and is connected to the entrance / exit management device 20 via a network N such as an in-house LAN. . As shown in FIG. 3, the server 30 includes a control unit 31 that controls the entire server 30 as a whole, a storage unit 32 including ROM, RAM, HDD, and the like, an input unit 33 configured as a mouse, a keyboard, and the like, a liquid crystal display A display unit 34 configured as a monitor and the like, a communication unit 35 configured as a LAN interface, and the like are provided.

  The storage unit 32 stores an authentication history database in which authentication success information, authentication failure information, and the like (described later) received from the entrance / exit management device 20 are sequentially stored. By analyzing this authentication history database, it is possible to grasp the authentication history including the room entry history for the room where the room entry / exit management device 20 is provided.

  Next, the locking / unlocking process executed by the control circuit 21a of the controller 21 in the entrance / exit management device 20 configured as described above will be described with reference to FIG. FIG. 4 is a flowchart illustrating the flow of the locking / unlocking process executed by the control circuit 21a of the controller 21 in the first embodiment.

  When the locking / unlocking process is started by the control circuit 21a, first, the determination process shown in step S101 is performed, and whether there is one user who wants to enter the door 11 based on the detection result by the human sensor 24. It is determined whether or not. And since one user headed for the door 11, if it is determined that there is one user heading for the door 11 based on the detection result by the human sensor 24 (Yes in S101), step S103. The face image information acquisition process shown in FIG. In this process, based on the image information input from the camera 23, the user's face image information detected by the human sensor 24 is acquired.

  Subsequently, a first authentication process shown in step S105 is performed, and a process of performing authentication by comparing the acquired face image with a plurality of face images permitted to enter and exit (hereinafter referred to as entrance / exit permitted face images) is performed. The Since the entry / exit permission face image corresponding to the acquired face image is not stored in the memory 21b, if the authentication using the face image fails (No in S107), the reading process shown in step S109 is performed. The IC card reader 22 can read the IC card C. The control circuit 21a that executes the first authentication process shown in step S105 may correspond to an example of a “first authentication unit”.

  When the specific information is read from the IC card C held over the IC card reader 22 by the user, the second authentication process shown in step S111 is performed. In this processing, authentication processing is performed by comparing the read specific information with a plurality of entry / exit permission information stored in the memory 21b. Here, since the user is an entry / exit permitted person, if the authentication succeeds because the read specific information matches the entry / exit permission information stored in the memory 21b (Yes in S113), the entry is permitted. Thus, the face image information registration process shown in step S115 is performed. In this process, the face image information acquired in step S103 is registered as an entry / exit permission face image so as to be associated with the entry / exit permission information, and is additionally stored in the memory 21b. The control circuit 21a that executes the second authentication process shown in step S111 may correspond to an example of “second authentication means”.

  Subsequently, an authentication success information transmission process shown in step S117 is performed. In this process, the authentication result, the specific information for identifying the user permitted to enter the room as described above, and the authentication success information including the time when the authentication is successful are transmitted to the server 30. Then, an unlock signal output process shown in step S119 is performed, and an unlock signal is output to the electric key 12. As a result, the electric key 12 is unlocked for a certain time, and the user can enter the desired room.

  When the user who is permitted to enter and leave the room again enters the room, the face image acquired in step S103 corresponds to the entrance / exit permitted face image registered in the memory 21b in step S115. Therefore, the authentication using the face image is successful (Yes in S107). In this case, since the processing after step S117 is performed without performing the processing after step S109, the user who has succeeded once authentication does not need to hold the IC card C over the IC card reader 22. You can enter the room for free.

  In addition, when a user who is not an entry / exit permission person holds the IC card C over the IC card reader 22, authentication fails because the read specific information does not match the entry / exit permission information stored in the memory 21b. In (No in S113), the authentication failure information transmission process shown in step S121 is performed. In this processing, authentication failure information including the authentication result, identification information for identifying a user who has failed authentication as described above, and the time when the authentication has failed is transmitted to the server 30.

  Subsequently, a locking signal output process shown in step S123 is performed, and a locking signal is output to the electric key 12. In this case, since the locked state of the electric key 12 is maintained, the state where the door 11 cannot be entered without opening the door 11 continues.

  When no one is facing the door 11 or when two or more users are facing the door 11, it is determined No in step S101, and the locking signal output process shown in step S123 is performed. .

  When the server 30 receives the authentication success information or the authentication failure information from the entrance / exit management device 20, the received authentication success information or the authentication failure information is used for the authentication history in the storage unit 32 according to the processing by the control unit 31. Stored in the database.

  As described above, in the entrance / exit management device 20 of the entrance / exit management system 10 according to the present embodiment, the face image captured by the camera 23 in the first authentication process and a plurality of entrance / exit stored in the memory 21b. When the authentication succeeds by comparing with the permitted face image, or when the authentication by the first authentication process fails, the specific information read by the IC card reader 22 in the second authentication process and a plurality of information stored in the memory 21b If the authentication is successful by comparing the entry / exit permission information, the control circuit 21a outputs an unlock signal to control the electric key 12 to the unlocked state. Then, a face image captured by the camera 23 upon successful authentication by the second authentication process is additionally stored in the memory 21b as an entry / exit permission face image.

  As a result, when a user who is permitted to enter and leave the room first reads the specific information by bringing the IC card C close to the IC card reader 22, the face image of the user is stored in the memory 21b as an entry / exit permitted face image. Thereafter, the electric key 12 is unlocked only by imaging the face of the user. This eliminates the need for the user who is permitted to enter or leave the room to bring the IC card C closer to the IC card reader 22. In particular, since the face image captured when the IC card C is first read is added and stored in the memory 21b as the entry / exit permission face image, the face image of the user permitted to enter / exit is stored in advance in the memory. It is not necessary to memorize in 21b. Therefore, authentication processing using face authentication technology can be easily realized.

  Further, when the human sensor 24 detects that the user has entered the imageable area, the user's face is imaged by the camera 23, so that the imaging timing of the camera 23 can be controlled appropriately, and entrance / exit management is performed. Power saving of the device 20 can be achieved.

  Further, the camera 23 is set to be narrow so that the imaging range captures the face of one of a plurality of users heading toward the door 11. As a result, even when a plurality of users are facing the door 11, it becomes easy to capture the face image of one user, and the face images of a plurality of users can be captured simultaneously, that is, No in step S <b> 101. It can suppress that it determines with.

  Moreover, in the entrance / exit management system 10 according to the present embodiment, the server 30 can acquire authentication history such as authentication success information and authentication failure information from the entrance / exit management device 20, so A user's passage history passing through the controlled door 11 can be easily created. In particular, since the authentication process is performed based on the entrance / exit permission face image and the entrance / exit permission information stored in the memory 21b of the entrance / exit management device 20, entrance / exit management is performed even when a failure or the like occurs in the server 30. The authentication process can be continued by the device 20 alone.

[Second Embodiment]
Next, an entrance / exit management device and an entrance / exit management system according to the second embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is an explanatory diagram schematically showing a configuration of an entrance / exit management system 10a that employs a plurality of entrance / exit management devices according to the second embodiment. FIG. 6 is a flowchart illustrating the flow of the locking / unlocking process executed by the control circuit 21a of the controller 21 in the second embodiment.

  The second embodiment is mainly different from the entrance / exit management device and the entrance / exit management system according to the first embodiment in that two or more entrance / exit management devices are managed using the server 30a. Therefore, substantially the same components as those in the entrance / exit management device and entrance / exit management system of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the entrance / exit management system 10a according to the present embodiment, a plurality of doors are to be managed, and an entrance / exit management device that locks and unlocks the electric key 12 for each door is provided. Then, by sharing the entrance / exit permission face image stored in the memory 21b of the controller 21 in each entrance / exit management device, when one of the entrance / exit management devices is allowed to enter the hands-free room. In other entrance / exit management devices, hands-free entry is permitted.

  Specifically, as illustrated in FIG. 5, the entrance / exit management device 20 a is configured to control the locking / unlocking of the electric key 12 installed on the door 11 a, and the entrance / exit management device 20 b It is configured to control the locking and unlocking of the electric key 12 installed in 11b. 5 illustrates the case where the two doors 11a and 11b are provided with the entrance / exit management devices 20a and 20b, respectively. However, the present invention is not limited to this, and a plurality of entrances and exits are provided so that more doors can be managed. A management device may be provided. For example, an entrance / exit management device may be provided in each of doors provided at a plurality of entrances / exits of one room where entry is restricted, or a plurality of compartments divided into predetermined areas (for example, all rooms on 2F). An entrance / exit management device may be provided at the door of each room.

  Hereinafter, the locking / unlocking process executed by the control circuit 21a of the controller 21 in the entrance / exit management device according to the present embodiment will be described with reference to FIG. In the following description, for the user A who is permitted to enter / exit through the door 11a and the door 11b, the face image is both the entrance / exit management device 20a and the entrance / exit management device 20b as the entrance / exit permission face image. The case where it is not registered in will be described.

  In the entrance / exit management device 20a, when the user A who desires to enter the room through the door 11a fails in the authentication using the face image (No in S107 in FIG. 6), the authentication using the IC card C is successful. (Yes in S113), after the face image information registration process shown in step S115, the registration information transmission process shown in step S116 is performed. In this process, the entrance / exit permission face image registered in step S115 is associated with the specific information and transmitted to the server 30a as registration information together with the authentication success information. Then, the electric key 12 is unlocked for a certain time (S119), and the user A can hands-free the electric key 12 of the door 11a from the next time as in the first embodiment. .

  On the other hand, when receiving the entry / exit permission face image or the like from the entry / exit management device 20a, the server 30a updates the authentication history database in the storage unit 32 to add the received entry / exit permission face image or the like.

  Thereafter, in the entrance / exit management device 20b, when the user A heads for the door 11b, it is determined that there is one user heading for the door 11b based on the detection result by the human sensor 24 (S101). Yes), the update process shown in step S102 is performed. In this process, a process for matching the entrance / exit permission face image stored in the memory 21b and the entry / exit permission face image stored in the storage unit 32 of the server 30a by communicating with the server 30a. Made. For this reason, when the entrance / exit permission face image of the user A is added to the storage unit 32 as described above, the entrance / exit permission face image of the user A is received by the entrance / exit management device 20b and stored in the memory. It is also added to 21b.

  Then, in the first authentication process shown in step S105, authentication is successful by comparing the face image information acquired in step S103 with the entrance / exit permission face image added to the memory 21b in step S102 (S107). Yes), the electric key 12 of the door 11b is unlocked for a certain time (S119). That is, in the entrance / exit management device 20b, the user A can enter the room in a hands-free manner without holding the IC card C over the IC card reader 22 once.

  As described above, in the entrance / exit management system 10a according to the present embodiment, in all entrance / exit management systems, the entrance / exit permission face image stored in the memory 21b in response to the successful authentication of the second authentication process is stored in the server 30a. When the entrance / exit permission face image transmitted from the other entrance / exit management device to the server 30a is received from the server 30a, the entrance / exit permission face image is additionally stored in the memory 21b (S102).

  As a result, the same entry / exit permission face image is stored in the memory 21b of all the entry / exit management devices. Therefore, when one entry / exit management device permits entry / exit by face authentication, Even in the entrance / exit management device, entrance / exit is permitted by face authentication, so it is possible to improve convenience while ensuring security.

FIG. 7 is an explanatory diagram schematically showing a configuration of an entrance / exit management system 10b that employs a plurality of entrance / exit management devices according to a modification of the second embodiment.
As a modification of the second embodiment, the entrance / exit permission face image is not limited to being shared by all entrance / exit management devices, but is shared by two or more entrance / exit management devices belonging to a predetermined group. May be used.

  Specifically, for example, as illustrated in FIG. 7, the entrance / exit management device 20 a and the entrance / exit management device 20 b are used to lock and unlock the electric keys 12 such as the doors 11 a and 11 b in the first security area with a high security level. And the locking / unlocking of the electric key 12 such as the door 11c in the second security area having a relatively low security level can be controlled by the entrance / exit management device 20c or the like.

  In this case, the server 30a manages the entrance / exit permission face image to be shared by the first group G1 to which the entrance / exit management device 20a, the entrance / exit management device 20b, etc. belong, and the entrance / exit management device 20c, etc. The second group G2 to which the user belongs is managed so as to share the entrance / exit permitted face image.

  Thereby, in all the entrance / exit management devices belonging to the predetermined group, the entrance / exit permission face image stored in the memory 21b is transmitted to the server 30a in response to the authentication success of the second authentication process, and from other entrance / exit management devices. When the entry / exit permission face image transmitted to the server 30a is received from the server 30a, the entry / exit permission face image is additionally stored in the memory 21b.

  As a result, the same entry / exit permission face image is stored in the memory 21b of all the entry / exit management devices belonging to the predetermined group, and therefore one entrance / exit management device permits entry / exit by face authentication. If this is done, entry / exit is permitted by face authentication even in other entry / exit management devices of the same group, so that convenience can be improved while ensuring security.

  Particularly, each entrance / exit management device is divided so as to belong to any of a plurality of groups such as the above-described groups G1 and G2, and the entrance / exit permission information used in the group is limited according to the use environment or the like. Thus, the security level for each group can be easily controlled.

In addition, this invention is not limited to said each embodiment and modification, For example, you may actualize as follows.
(1) In the memory 21b of the controller 21, the face images of some users among the plurality of users permitted to enter and leave the room can be stored in advance as face images that allow entry / exit. For this reason, for example, by storing the face image of the user who temporarily permits entry / exit in the memory 21b as the entry / exit permission face image, it is possible to perform hands-free without separately preparing a storage medium such as an IC card C or the like. Temporary entry and exit can be easily permitted.

(2) FIG. 8 is a flowchart illustrating the flow of the locking / unlocking process executed by the control circuit 21a of the controller 21 in the modification of the first embodiment.
As a modification of the first embodiment, when authentication fails by the second authentication process, the face image captured by the camera 23 is stored in the memory 21b as an entry / exit non-permitted face image, and at the time of authentication by the first authentication process When a face image corresponding to an entry / exit non-permitted face image is to be compared, the electric key 12 may be locked without performing authentication by the second authentication process.

  Specifically, as shown in the flowchart of FIG. 8, when the authentication failure by the second authentication process (S111) fails (No in S113), the entrance / exit non-permitted face image registration process shown in step S120 is performed, and the above-described step S103 is performed. Then, the face image captured by the camera 23 is stored in the memory 21b as an entry / exit non-permitted face image. Then, when a face image corresponding to an entry / exit non-permitted face image is to be compared at the time of authentication by the first authentication process (S105), it is determined Yes in the determination process shown in step S106, and the authentication by the second authentication process is performed. Without implementation, the electric key 12 is locked.

As a result, the user who has the IC card C in which the specific information for which entry / exit is permitted is not recorded has the electric key 12 locked only by capturing the face image. Etc. can be reliably prevented and security can be improved.
Note that the processing related to the entrance / exit non-permitted face image described above can also be applied to the locking / unlocking processing in the second embodiment or the modification.

(3) An expiration date (for example, three months or one year) that can be used for authentication in the first authentication process may be set in the entry / exit permission face image. This makes it necessary to read the IC card C again when the expiration date expires, so that the IC card C can be read periodically and the entry / exit permission face image can be updated, thereby improving security. Can do. The expiration date for the entry / exit permission face image may be set according to an input operation to the servers 30 and 30a, or set according to an input operation to a dedicated client terminal connected via the network N. May be.

  In particular, it is possible to improve convenience in terms of security by changing the expiration date according to the user, the security area, or the like, such as setting the expiration date shorter in other rooms than in other rooms where high security is required.

(4) The recording medium on which the user specific information is recorded is not limited to the IC card C, but may be a recording medium of another format, for example, a mobile terminal capable of wireless communication with respect to the specific information such as a mobile phone. Good. In this case, the IC card reader 22 is configured to be able to read the specific information from the recording medium of the other format.

DESCRIPTION OF SYMBOLS 10, 10a, 10b ... Entrance / exit management system 11, 11a-11c ... Door 12 ... Electric key 20, 20a-20c ... Entrance / exit management device 21 ... Control controller 21a ... Control circuit (1st authentication means, 2nd authentication means, Locking / unlocking control means)
21b ... Memory (storage means)
21c: Communication unit (apparatus side communication means)
22 ... IC card reader (reading means)
23 ... Camera (imaging means)
30, 30a ... Server C ... IC card (recording medium)

Claims (8)

An entrance / exit management device that locks and unlocks an electric key provided on a door,
Reading means for reading the specific information from the recording medium when a recording medium recording the specific information for specifying a user is approached;
Imaging means for imaging the user's face;
A plurality of the specific information that allows entry / exit is stored in advance as entry / exit permission information, and a storage unit capable of storing a face image captured by the imaging unit;
First authentication means for performing authentication by comparing a face image captured by the imaging means with a plurality of entrance / exit permission face images stored as face images permitted to enter the storage means;
Second authentication is performed by comparing the specific information read by the reading means with the plurality of entry / exit permission information stored in the storage means when the authentication by the first authentication means fails. Authentication means;
Unlocking / unlocking control means for unlocking the electric key in response to successful authentication by the first authenticating means or successful authentication by the second authenticating means;
With
A face image captured by the imaging means upon successful authentication by the second authentication means is additionally stored in the storage means as the entry / exit permission face image ;
Upon authentication failure by the second authentication means, the face image captured by the imaging means is stored in the storage means as a face image that is not permitted to enter the room,
When the face image corresponding to the entry / exit non-permitted face image is to be compared at the time of authentication by the first authentication means, the locking / unlocking control means performs the authentication by the second authentication means without performing the authentication by the second authentication means. An entrance / exit management device that is locked . An entrance / exit management device that locks and unlocks an electric key provided on a door,
Reading means for reading the specific information from the recording medium when a recording medium recording the specific information for specifying a user is approached;
Imaging means for imaging the user's face;
A plurality of the specific information that allows entry / exit is stored in advance as entry / exit permission information, and a storage unit capable of storing a face image captured by the imaging unit;
First authentication means for performing authentication by comparing a face image captured by the imaging means with a plurality of entrance / exit permission face images stored as face images permitted to enter the storage means;
Since the entry / exit permission face image is not stored in the storage unit, when the authentication by the first authentication unit fails, the specific information read by the reading unit and the storage unit are stored. A second authentication means for performing authentication by comparing a plurality of the entry / exit permission information;
Unlocking / unlocking control means for unlocking the electric key in response to successful authentication by the first authenticating means or successful authentication by the second authenticating means;
With
Entry and exit management apparatus you characterized in that captured face image is additionally stored in the storage means as the entering withdrawal allowed the face image by the image pickup means upon successful authentication by the second authentication means. The face image of some users among a plurality of users permitted to enter and leave the room is stored in advance as the entrance / exit permitted face image in the storage unit. Entrance / exit management device.   The entrance / exit management device according to any one of claims 1 to 3, wherein an expiration date that can be used for authentication by the first authentication unit is set in the entrance / exit permission face image. Comprising detection means for detecting that the user has entered the imageable area by the imaging means;
The said imaging means images the said user's face, when the penetration | invasion to the said image pickup possible area | region of the said user is detected by the said detection means, The said user's face is characterized by the above-mentioned. The entry / exit management device described.   The said imaging means is set narrowly so that the imaging range may image the face of one of the plurality of users heading to the door. Entrance / exit management device. A plurality of entrance / exit management devices according to any one of claims 1 to 6;
A server for managing an authentication history in the plurality of entrance / exit management devices;
An entrance / exit management system comprising:
The entrance / exit management device includes:
Comprising device side communication means for communicating with the server;
Receiving the entry / exit permission information stored in the storage means from the server via the device-side communication means;
At least a part of the authentication result of the first authentication means and the authentication result of the second authentication means is transmitted as the authentication history to the server via the device side communication means. At least two or more entrance / exit management devices among the plurality of entrance / exit management devices are managed as one group,
In all the entrance / exit management devices belonging to the group, the entrance / exit permission face image stored in the storage means is transmitted to the server in response to the authentication success of the second authentication means, and the other entrance / exit management devices from the entrance / exit management device 8. The entrance / exit management system according to claim 7, wherein when the entrance / exit permission face image transmitted to the server is received from the server, the entrance / exit permission face image is additionally stored in the storage means.

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