JP2010003009A - Access control system and access control method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an access control system and access control method for flexibly authenticating a person. <P>SOLUTION: This access control system, at an entrance of a target area, acquires a unique face image from a person who wants to enter or leave the area, determines the similarity between the acquired face image and dictionary information registered in advance by collating them with each other, identify the person by comparing the determined similarity with a preset threshold for determination, and controls the access of the person to the area based on the authentication result. The determination threshold for a person to be actually authenticated is varied based on access information of another person already authenticated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an entrance / exit management system and entrance / exit management for managing the entrance / exit of a person to / from a plurality of entrance / exit areas, each of which is separated by a gate, for example, using biometric authentication such as face authentication using a person's face image Regarding the method.

  Generally, in this type of entrance / exit management system, for example, at a gate of an entrance / exit area such as a conference room or work area that requires security, it is unique from a person who wishes to enter / exit the entrance / exit area. A facial image is obtained as biometric information, the feature information of the obtained facial image is collated with previously registered dictionary information to determine the similarity between the two information, and the obtained similarity is set in advance as a determination threshold value The person is authenticated whether or not the person is the person, and the entry / exit of the person with respect to the entry / exit area is managed based on the authentication result (for example, Patent Documents 1 and 2). reference).

Conventionally, in such an entrance / exit management system, when the above-described threshold value for identification is changed, the parameter is different authentication information (IC card, mobile phone, etc.) possessed by the person to be authenticated or authentication. It was other information accompanying the subject of authentication, such as the location information of the subject.
JP 2002-117426 A JP 2006-161501 A

In the conventional entrance / exit management system, since the threshold for determination is changed only by the authentication information of the person to be authenticated, there is a problem that the authentication speed of the person becomes slow.
In addition, for example, there is a demand for more flexible personal authentication when there is a visitor other than the person who performs personal authentication, but there is also a problem that this cannot be done.

  Therefore, the present invention makes it possible to perform flexible personal authentication by changing the determination threshold for a person who actually performs personal authentication based on entrance / exit information of another person who has already been authenticated. An object is to provide an exit management system and an entrance / exit management method.

  The entrance / exit management system of the present invention acquires unique biometric information from a person who wishes to enter / exit the entrance / exit target area at the entrance / exit target area, and the obtained biometric information is registered in advance. By comparing with the dictionary information, the similarity between the two information is obtained, and by comparing the obtained similarity with a predetermined threshold for determination, it is authenticated whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person to / from the entrance / exit area, the threshold for determination for the person A who actually authenticates the person is based on entrance / exit information of another person B who has already been authenticated. It is characterized by changing.

  According to the present invention, it is possible to perform flexible personal authentication by changing the determination threshold for a person who actually performs personal authentication based on entrance / exit information of another person who has already been authenticated. An exit management system and an entrance / exit management method can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In the following description, a case where a face image is used as the biological information of a person will be described as an example. In addition to the face image, other biological information such as a fingerprint image, vein information, iris information, a palm-shaped image, and a finger image are used. The same can be implemented using

  FIG. 1 schematically shows the configuration of an entrance / exit management system according to an embodiment of the present invention. This entrance / exit management system includes, for example, a plurality of entrance / exit target areas (hereinafter also simply referred to as areas) P1 such as a conference room and a work area that require security divided by gates G1 to G4. ˜P5, and is applied to the entrance / exit management of persons for these entrance / exit target areas P1-P5.

  Person authentication devices 11, 12, 13, and 14 are installed in the gates G1 to G4, respectively. This person authentication device 11, 12, 13, 14 is a camera (image acquisition means) that acquires a face image as unique biometric information from a person who wants to enter or leave an entry / exit target area. Person detection means for detecting a person area from an image, face information acquisition means for acquiring unique face information from the detected person area, and comparing the acquired face information with previously registered dictionary information Authentication means for obtaining a similarity and comparing the obtained similarity with a predetermined threshold for determination (hereinafter also simply referred to as a threshold) to authenticate whether or not the person is the person, Based on the authentication result of this authentication means, the gate control means that permits entry / exit of the person in the entrance / exit target area, The above determination is based on entrance / exit information transmitting means for transmitting person entry / exit information (person name, current position information (area name), etc.) to the management server 16 described later, and threshold update information sent from the management server 16 described later. A threshold updating means for updating the use threshold.

  The person authentication devices 11, 12, 13, and 14 are connected to a management server 16 installed in a remote part such as a management room as a management device via a network (communication line) 15, and can communicate with each other. It has become.

  The management server 16 controls the person authentication devices 11 to 14 installed in the gates G1 to G4, and performs threshold determination processing for determining the determination threshold in the person authentication devices 11 to 14, etc. Position information management table T1, person-related information table T2, threshold management table T3, first threshold determination table T4 for determining a fluctuation target person to perform threshold fluctuation and a threshold fluctuation value, and a second threshold determination table T5.

  The visitor location information management table T1 is configured, for example, as shown in FIG. 2, and manages which area the attendee is in. Area numbers (P1 to P5) are used as location information.

  The threshold management table T3 is configured as shown in FIG. 3, for example, and manages determination thresholds for all persons and all the gates G1 to G4 (person authentication devices 11 to 14). In the example of FIG. 3, a case where “80” is set as the initial value of the threshold value for determination for every moving direction of the person for all the gates G1 to G4 is shown. The determination threshold in the threshold management table T3 is updated based on the entrance / exit information sent from the person authentication devices 11 to 14, and will be described in detail later.

  Details of the person related information table T2, the first threshold value determination table T4, and the second threshold value determination table T5 will be described later.

  Next, the overall processing operation in such a configuration will be schematically described with reference to the flowcharts shown in FIGS.

The person authentication devices 11 to 14 installed in the gates G1 to G4 are in an entrance / exit waiting state as an initial state.
In this state, when the person authentication devices 11-14 detect a person (entrance / exit person) approaching (step S1), the person authentication devices 11-14 detect a person area from the image acquired by the camera, Specific face information is acquired from the detected person area, the acquired face information is compared with dictionary information registered in advance to obtain the similarity between the two information, and the obtained similarity is set in advance. By comparing with the threshold for determination, it is authenticated whether or not the person is the person himself (step S2).

  As a result of this personal authentication, if the person is not the person, error processing (entrance / exit refusal, etc.) is performed (step S3). If the person is the person, entry / exit of the person to the entrance / exit area is permitted. (Step S4), the entry / exit information (person name, area name, etc.) of the person is transmitted to the management server 16 (Step S5).

On the other hand, the management server 16 is in a state waiting for notification of entrance / exit information from the person authentication devices 11 to 14 as an initial state.
In this state, when the management server 16 receives the entrance / exit information transmitted from the person authentication devices 11 to 14 (step S11), the management server 16 stores the entrance / exit information in the attendee location information management table T1 based on the received entrance / exit information. The position information is updated (step S12).

  Next, the management server 16 determines the threshold value for determination to be changed for each gate by referring to each piece of information in the updated position information management table T1 and threshold management table T3 (details will be described later). The threshold value in the threshold value management table T3 is updated with the determined threshold value (step S13).

  Next, the management server 16 refers to each piece of information in the threshold management table T3, so that the person authentication devices 11 to 14 of the gates G1 to G4 that need to be updated receive threshold update information (new updated Threshold) is transmitted (step S14).

  When receiving the threshold update information sent from the management server 16, the person authentication devices 11 to 14 update the determination threshold set in advance based on the threshold update information.

  Hereinafter, the threshold value determination process for each of the gates G1 to G4 (person authentication devices 11 to 14) in step S13 will be described in detail.

First, threshold determination processing according to the first embodiment will be described.
For example, as shown in FIG. 6, when a person B enters the entrance / exit target area P3, the state of the visitor location information management table T1 is shown in FIG. It becomes like this. In the case of this example, the entrance / exit person position management table T1 indicates that the person B exists in the entrance / exit area P3.

  When the person B moves to the entrance / exit area P3, this is notified to the management server 16 by the entrance / exit information from the person authentication device 12 of the gate G2, and the processing of the management server 16 is started using this as a trigger. . The attendee location management table T1 is updated at this time.

  In the first embodiment, the determination threshold value of the gates G2 and G3 (person authentication devices 12 and 13) adjacent to the entrance / exit area P3 where the person B who has already entered is changed is changed. The determination threshold value in the direction toward the entrance / exit target area P3 of G3 is changed. The state of the threshold management table T3 after the change (after the update) is as shown in FIG. In this example, the threshold is lowered by “20” from “80” to “60”.

  From the above, the flow of threshold value determination processing for each of the gates G1 to G4 (person authentication devices 11 to 14) in the first embodiment is as shown in the flowchart of FIG.

  That is, first, a gate (person authentication device) for which the threshold for determination is updated is determined from the position information in the entrance / exit information received from the person authentication devices 11 to 14 (step S21). In this example, since person B is in entrance / exit target area P3, it is used for personal authentication in the direction from entrance / exit target area P2 of gate G2 to P3 and in the direction from entrance / exit target area P4 of gate G3 to P3. The determination threshold value is a target.

  Next, by checking whether or not the person name (entrance / exit person) in the received entry / exit information is a person in the threshold management table T3 (step S22), the person to be changed in threshold value is determined. In the case of this example, the entry / exit person is B, the threshold change target persons are A and C, and the threshold values of the persons A and C in the threshold management table T3 are updated (step S23). In this example, the threshold values of the gates G2 and G3 that update the determination threshold value determined in step S21 are “80”, and the threshold value change target persons A and C determined in step S22 are decreased to “60”. I am letting.

  In the above description, a case has been described in which the threshold values for determination of the gates G2 and G3 (person authentication devices 12 and 13) adjacent to the entrance / exit target area P3 where the person B who has already entered is fluctuated. When there is a person A who performs personal authentication, the gates G1 and G2 existing in the route from the gate G1 where the person A exists to the entrance / exit area P3 where the person B exists are set as threshold change targets, and the gate G1 enters and exits. The determination threshold used for the personal authentication in the direction from the target area P1 to P2 and the direction from the entrance / exit target area P2 to P3 of the gate G2 may be changed.

  Moreover, when the person B enters a certain entrance / exit target area among the entrance / exit target areas P1 to P5, the determination thresholds for all the gates G1 to G4 (person authentication devices 11 to 14) may be changed.

  Furthermore, in the above description, when a person moves to a certain entry / exit area, the threshold value for determining the gate related to the entry / exit area is changed, but the person moves to another area again. In this case, the determination threshold value of the gate related in the original entrance / exit area may be returned to the original value. For example, in the above example, when the person B in the entrance / exit target area P3 moves to the entrance / exit target area P2, the threshold for determination of the gate G3 (person authentication device 13) is returned to the original value “80”. It is. The same applies to the following description.

Next, threshold value determination processing according to the second embodiment will be described.
In the case of the second embodiment, for example, the relationship between the persons A and B can be established, and the gate for changing the determination threshold is determined based only on whether the person B is entering or not. Therefore, the person related information table T2 for determination of changing the threshold value between persons is used. The management information in the person-related information table T2 is, for example, as shown in FIG. 10, and manages the threshold change target person who can change the threshold.

  The threshold management table T3 in the case of the second embodiment is as shown in FIGS. 11 and 12, for example. FIG. 11 shows a case where only the person B enters the entrance / exit target area P2 (and the threshold value is changed only for the gate adjacent to the area), and FIG. 12 shows that the visitors to the entrance / exit target area P2 The case of only the person C (and the case where the threshold value is changed only for the gate adjacent to the area) is shown.

  From the above, the flow of threshold value determination processing for the gates G1 to G4 (person authentication devices 11 to 14) in the second embodiment is as shown in the flowchart of FIG.

  That is, first, a gate (person authentication device) that is a target for updating the threshold for determination is determined from the position information in the entrance / exit information received from the person authentication devices 11 to 14 (step S31). In this example, the gate adjacent to the entrance / exit target area where there are visitors is the target.

  Next, the person related information table T2 is searched using the received entrance / exit information as a key, and it is checked whether or not the threshold change target person is a person in the threshold management table T3 (step S32). Decide who. In this example, if the attendee is person B, the threshold change target persons are persons A and C. If the attendant is person C, the threshold change target person is only person B, and person A in the threshold management table T3. , C or the threshold of person B is updated (step S33). In this example, the threshold values of the gates G2 and G3 for updating the determination threshold value determined in step S31 are “80”, and the threshold value change target person A, C or B determined in step S32 is “60”. It has been reduced to.

  As a modification of the above-described second embodiment, a method of registering a person who refuses to change the threshold value can be considered. In this case, the management information of the person related information table T2 is as shown in FIG. 14, for example, and manages the threshold change refusal target person who enters and leaves the threshold change.

  The threshold management table T3 in this case is as shown in FIGS. 15 and 16, for example. FIG. 15 shows a case where only the person B enters the entrance / exit area P2 (and the threshold value is changed only for the gate adjacent to the area), and FIG. 16 shows that the visitors to the entrance / exit area P2 The case of only the person C (and the case where the threshold value is changed only for the gate adjacent to the area) is shown.

  In the case of this example, when the person B enters the entrance / exit area P2, referring to the person related information table T2 in FIG. 14, both the persons A and C are registered to reject the threshold change from the person B. For this reason, even if the person B exists in the entrance / exit area P2, the threshold management table T3 is not updated as shown in FIG.

  On the other hand, when the person C has entered the entrance / exit target area P2, referring to the person related information table T2 in FIG. As shown, the threshold information for the person A in the threshold management table T3 is updated. On the other hand, since the person B is the person to be rejected for the person B, the threshold information of the person B is not updated.

  Note that the description of the flow of the threshold value determination process according to the flowchart in the modification is substantially the same as FIG.

Next, threshold determination processing according to the third embodiment will be described.
In the case of the third embodiment, for example, the determination threshold is set based on the information about whether the person A and B have a vertical relationship, whether the person B is entering or not, and the vertical relationship between the person A and the person B. The gate to be changed is determined, and the first threshold determination table T4 or the second threshold determination table T5 for determining the target of the threshold change and the value of the threshold change is used. The management information of the first threshold value determination table T4 is, for example, as shown in FIG. 17, and manages the threshold value that can be changed by the entrance / exit person and its target person. Further, the management information of the second threshold value determination table T5 is, for example, as shown in FIG. 18, and manages the threshold change target person who can change the threshold value and the fluctuation threshold value. The threshold management table T3 is updated by referring to the first threshold determination table T4 or the second threshold determination table T5.

  From the above, the flow of threshold determination processing for each of the gates G1 to G4 (person authentication devices 11 to 14) in the third embodiment is as shown in the flowchart of FIG.

  That is, first, a gate (person authentication device) for which the threshold for determination is updated is determined from the position information in the entrance / exit information received from the person authentication devices 11 to 14 (step S41). In this example, the gate adjacent to the entrance / exit target area where there are visitors is the target.

  Next, the person related information table T2 is searched using the received entrance / exit information as a key, and it is checked whether the threshold change target person is a person in the threshold management table T3 (step S42). Decide who. In this example, if the visitor is a person B, when the first threshold value determination table T4 of FIG. 17 is used, the threshold value change target persons are the persons C and A, and the variation threshold values are “20” and “10”. When the second threshold determination table T5 of FIG. 18 is used, the threshold change target persons are persons A and C, and the variation thresholds are “20” and “10”.

  Next, the threshold corresponding to the threshold change target determined in the threshold management table T3 as described above is updated with the corresponding threshold registered in the first threshold determination table T4 or the second threshold determination table T5. (Step S43). In the case of the above example, when the first threshold value determination table T4 is used, the threshold value of the person C is decreased to “20”, the threshold value of the person A is decreased to “10”, and the second threshold value determination table T5 is used. The threshold value of the person A is lowered to “20”, and the threshold value of the person C is lowered to “10”.

  As described above, the threshold fluctuation value is fixed in the first and second embodiments. In the third embodiment, the target person who performs the threshold fluctuation and the threshold fluctuation value are determined from the entrance / exit information. Thus, the threshold management table T3 is updated.

Next, threshold determination processing according to the fourth embodiment will be described.
In the case of the fourth embodiment, when the threshold value is calculated, if it is determined that a plurality of visitors are in the same area, the threshold value is greatly changed compared to the case where there is a single visitor. The second threshold value determination table T5 shown in FIG. 18 is used.

  Like the second threshold value determination table T5 in FIG. 18, a threshold value is given to each fluctuation target person. For example, when there are persons B and C in the entrance / exit area P3, the threshold for the person A is “20” in which the person B is set as a threshold fluctuation value for the person A, and the threshold value for the person C is set as a threshold fluctuation value for the person A. Determined using “10”. As the simplest specific example, by using “20 + 10 = 30”, which is the total value of both threshold values, as the threshold fluctuation value, the threshold value of the person A is set to “80-30 = 50” in this case. The

  Thus, in the fourth embodiment, for example, the threshold value for determination is more greatly reduced when the persons B and C are entering at the same time than when the person B is entering alone. Can do.

  As described above, according to the above embodiment, when someone is present in the entrance / exit area, the attendee can easily enter the entrance / exit area area by lowering the determination threshold for the attendee. It becomes like this.

  In addition, by grouping the persons allowed to enter the entrance / exit area, the threshold for judging entrance / exit is changed according to the relationship between the group of persons who have already entered and the group of visitors. Persons in the same group as the person who is doing can enter easily, and persons in another group need to be authenticated in the initial state.

For example, when using a conference room or work area that requires security, persons in the same group can easily enter, and other persons can require initial authentication.
Conversely, by setting a group such as VIP (important person), it is possible to make it harder for people other than the VIP group to enter an area where there are persons related to the group.

  In addition, by changing the threshold for determination according to the number of people in the entrance / exit target area, if there are many people in the entrance / exit target area, the conditions for the person to enter can be relaxed and entry can be facilitated. Furthermore, by combining these, it is possible to set more detailed conditions.

  In the above embodiment, the case where the threshold for determination is lowered has been described. However, the present invention is not limited to this, and the present invention can be similarly applied to the case where the threshold for determination is increased. For example, you may make it make entrance severe with respect to the said area by raising the threshold value for determination with respect to the gate to the entrance / exit area where a VIP user exists.

The schematic diagram which shows schematically the structure of the entrance / exit management system which concerns on embodiment of this invention. The schematic diagram explaining an example of a visitor location information management table. The schematic diagram explaining an example of a threshold value management table. 6 is a flowchart for schematically explaining the processing operation of the person authentication device. 7 is a flowchart for schematically explaining the processing operation of the management server. The schematic diagram for demonstrating a threshold-value determination process. The schematic diagram which shows the state of the attendee location information management table in the threshold value determination process which concerns on 1st Embodiment. The schematic diagram which shows the state of the threshold value management table in the threshold value determination process which concerns on 1st Embodiment. The flowchart explaining the flow of the threshold value determination process which concerns on 1st Embodiment. The schematic diagram which shows the state of the person related information table in the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows the state of the threshold value management table in the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows another state of the threshold value management table in the threshold value determination process which concerns on 2nd Embodiment. The flowchart explaining the flow of the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows the state of the person related information table in the modification of the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows the state of the threshold value management table in the modification of the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows another state of the threshold value management table in the modification of the threshold value determination process which concerns on 2nd Embodiment. The schematic diagram which shows the state of the 1st threshold value determination table in the threshold value determination process which concerns on 3rd Embodiment. The schematic diagram which shows the state of the 2nd threshold value determination table in the threshold value determination process which concerns on 3rd Embodiment. The flowchart explaining the flow of the threshold value determination process which concerns on 3rd Embodiment.

Explanation of symbols

  G1 to G4: Gate, P1 to P5: Entrance / exit area, 11, 12, 13, 14 ... Person authentication device, 15 ... Network (communication line), 16 ... Management server (management device), T1 ... Visitor location information Management table, T2 ... person-related information table, T3 ... threshold management table, T4 ... first threshold determination table, T5 ... second threshold determination table.

Claims (9)

At the entrance / exit of the entrance / exit area, both pieces of information are obtained by acquiring unique biometric information from a person who wishes to enter / exit the entrance / exit area and comparing the obtained biometric information with pre-registered dictionary information. The person is authenticated whether or not the person is the person by comparing the obtained degree of similarity with a predetermined threshold for determination, and the person with respect to the entrance / exit area is based on the authentication result. In the entrance / exit management system that manages entrance / exit of
An entrance / exit management system, characterized in that the threshold for determination for a person A who actually performs personal authentication is varied based on entrance / exit information of another person B who has already been authenticated. In each gate of a plurality of entrance / exit target areas each separated by a gate, unique biometric information is acquired from a person who wishes to enter / exit the entrance / exit target area, and the acquired biometric information is registered in advance. The degree of similarity between both pieces of information is obtained by collating with the dictionary information, and the obtained degree of similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person with respect to the entrance / exit area based on
When a person B enters an entrance / exit area out of the plurality of entrance / exit areas, the determination threshold for the gate adjacent to the entrance / exit area where the person B exists is changed. Exit management system. In each gate of a plurality of entrance / exit target areas each separated by a gate, unique biometric information is acquired from a person who wishes to enter / exit the entrance / exit target area, and the acquired biometric information is registered in advance. The degree of similarity between both pieces of information is obtained by collating with the dictionary information, and the obtained degree of similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person with respect to the entrance / exit area based on
When there is a person A who actually performs personal authentication and a person B enters an entrance / exit area of the plurality of entrance / exit areas, the person B enters from the gate where the person A exists. An entrance / exit management system, wherein the threshold value for determination for a gate existing on a route to an existing entrance / exit target area is varied. In each gate of a plurality of entrance / exit target areas each separated by a gate, unique biometric information is acquired from a person who wishes to enter / exit the entrance / exit target area, and the acquired biometric information is registered in advance. The degree of similarity between both pieces of information is obtained by collating with the dictionary information, and the obtained degree of similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person with respect to the entrance / exit area based on
The entrance / exit management system, wherein when the person B enters an entrance / exit target area among the plurality of entrance / exit target areas, the determination threshold for all of the plurality of gates is changed. In each gate of a plurality of entrance / exit target areas each separated by a gate, unique biometric information is acquired from a person who wishes to enter / exit the entrance / exit target area, and the acquired biometric information is registered in advance. The degree of similarity between both pieces of information is obtained by collating with the dictionary information, and the obtained degree of similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person with respect to the entrance / exit area based on
In the case where there is a person A who actually performs personal authentication and the person B enters the entrance / exit area of the plurality of entrance / exit areas, the person A is determined as the person B in advance. The entrance / exit management system is characterized in that the judgment threshold value for the plurality of gates is changed when it can be judged that the group relation is satisfied. In each gate of a plurality of entrance / exit target areas each separated by a gate, unique biometric information is acquired from a person who wishes to enter / exit the entrance / exit target area, and the acquired biometric information is registered in advance. The degree of similarity between both pieces of information is obtained by collating with the dictionary information, and the obtained degree of similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person. In the entrance / exit management system for managing entrance / exit of the person with respect to the entrance / exit area based on
The person A and the person B are determined in advance when there is a person A who actually performs personal authentication and the person B enters the entrance / exit area of the plurality of entrance / exit areas. The entrance / exit management system, wherein when it can be determined that the determined vertical relationship exists, the determination threshold for the plurality of gates is varied based on the vertical relationship.   When a person C other than the person B is also entering the entrance / exit target area where the person B is entering, the threshold for determination with respect to the gate is compared with the case where the person B is entering alone. The entrance / exit management system according to claim 2, wherein the entrance / exit management system is further varied. Each is installed at each gate of a plurality of entrance / exit target areas separated by gates, acquires unique biometric information from a person who wishes to enter / exit the entrance / exit target area, and obtains this biometric information The similarity of both information is obtained by collating with dictionary information registered in advance, and the obtained similarity is compared with a predetermined threshold for determination to authenticate whether or not the person is the person, A person authentication device that permits entry / exit of the person with respect to the entrance / exit area based on the authentication result, and a management device connected to the plurality of person authentication devices via a communication line,
The person authentication device
If entry / exit to the entrance / exit target area is permitted, it comprises means for transmitting entrance / exit information of the person to the management device,
The management device
Means for determining a threshold for determination for a person different from the person based on the entrance / exit information when receiving the entrance / exit information transmitted from the person authentication device;
A means for transmitting the determined threshold for determination to the person authentication device as threshold update information;
The person authentication device further includes:
An entry / exit management system, comprising: means for updating the predetermined threshold for determination based on the threshold update information when the threshold update information transmitted from the management device is received. At the entrance / exit of the entrance / exit area, both pieces of information are obtained by acquiring unique biometric information from a person who wishes to enter / exit the entrance / exit area and comparing the obtained biometric information with pre-registered dictionary information. The person is authenticated whether or not the person is the person by comparing the obtained degree of similarity with a predetermined threshold for determination, and the person with respect to the entrance / exit area is based on the authentication result. In the entrance / exit management method for managing entrance / exit of
An entrance / exit management method, characterized in that the threshold value for determination for a person A who actually performs personal authentication is varied based on entrance / exit information of another person B who has already been authenticated.

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