JP5574754B2 - Access control device and access control system - Google Patents

Description

  The present invention relates to an entry / exit management device having a function of managing entry / exit of a user to / from a restricted area, and in particular, a user who is eligible for entry / exit to a restricted area re-enters the restricted area. It is related with technology to manage appropriately.

  Conventionally, in order to reduce the time and effort for managers of restricted areas to manage entrance / exiters, the user holds the ID card over an input device such as a card reader installed at the entrance / exit of the restricted area. There is known an entry / exit management system that restricts the area (such as a room that can be entered) that can be entered for each user by inputting identification information.

  In such an entry / exit management system, the location of the user is managed based on the location where the user last entered the identification information, or the user has already entered the restricted area (in the room). A system that prohibits other users (other users who have been lent an ID card) from entering the room with the same identification information, a so-called anti-passback system has been proposed. ing.

  Conventionally, in such an anti-passback system, when there is a discrepancy between the latest location information and the currently operated area information for certain identification information, the identification information is used for a predetermined penalty time. A system is disclosed that prohibits the movement that has occurred (see, for example, Patent Document 1).

JP-A-2005-139551

  In the above conventional system, in order to properly manage the location and anti-passback management of users, identification information must be entered both when entering and leaving the restricted area when moving between restricted areas. It is necessary to let users thoroughly. In the conventional system, a certain penalty is given to a user who has not input identification information, so that the user is aware of the input of identification information, and location management and anti-passback management are strictly performed.

  However, location management and anti-passback management are not necessarily performed as strictly as the conventional system. In general, a user who is entitled to enter a restricted area often has a right to leave the restricted area as a matter of course. The user may input the identification number properly when entering the restricted area, but may forget the input of the identification number when leaving the restricted area. In such a case, even users who are qualified to enter or leave the restricted area must take troublesome procedures to enter (re-enter) the restricted area. Forced the person to overburden.

  In addition, after a certain user enters identification information and enters a restricted area, when the user leaves the restricted area, the user may leave (so-called together) with other users. However, in the conventional system described above, even in the case of such companionship, the user is to remain in the restricted area for location management, so the user will reenter the restricted area. However, it is impossible to enter until the penalty time elapses, and an excessive burden is imposed on the user who is qualified to enter or leave the restricted area.

  The present invention has been made in view of the above problems, and an entry / exit management device capable of reducing the burden when a user who is qualified to enter or leave the restricted area re-enters the restricted area. The purpose is to provide.

  The access control apparatus according to the present invention is an access control apparatus for managing the access of a user to a restricted area, and acquires the identification information of the user when entering the restricted area and leaving the restricted area. Based on the identification information acquisition unit, the occupancy information storage unit that stores the identification information of the user who has entered the restricted area as occupancy information of the restricted area, and the occupancy information of the restricted area, Unattended from an entrance / exit permission determination unit that determines whether or not a user is allowed to enter or leave the restricted area and a monitoring unit that determines whether or not the restricted area is unattended A determination result acquisition unit that acquires a determination result of determination, and an occupancy information management unit that deletes occupancy information of the restricted area when it is determined by the unattended determination that the restricted area is unmanned. Prepared for entrance / exit permission determination , Unless the identification information of the user wishing to admission is not stored as the occupancy information of the restricted area and determines that permits entry to the restricted area of the user.

  As a result, when a user enters or leaves the restricted area, the identification information of the user is acquired, and the identification information of the user who is currently entering the restricted area is included in the restricted area. Stored as room information. The entrance / exit management device manages the user entering or leaving the restricted area based on the presence information. For example, when the identification information of a certain user is stored in the occupancy information, it is assumed that the user has entered the restricted area (has not yet left), and leaving the restricted area is “permitted”. On the other hand, admission (re-entry) to the restricted area is determined as “not permitted”. By the way, when a certain user enters a restricted area and then leaves (so-called companion) with another user, or when the user forgets to enter identification information when leaving In some cases, the identification information of the user may not be acquired correctly when leaving. In such a case, in the conventional system, since the identification information of the user remains stored in the occupancy information of the restricted area, the user has entered the restricted area (still exited). And re-entry into the restricted area will be “disallowed”. Once re-entry to the restricted area is “disallowed”, even users who are eligible to enter or leave the restricted area are bothersome to re-enter the restricted area. Procedures are necessary, and the user is overburdened. According to the present invention, when it is determined by the unattended determination that the restricted area is unattended, the occupancy information of the restricted area is deleted, and even if the user who could not obtain the identification information correctly when leaving the restricted area Admission to is permitted. As described above, in the present invention, even when the identification information of the user is not correctly acquired at the time of leaving, if the exit of all users can be confirmed by the unattended determination, the user can enter the restricted area. Allowed. Therefore, it is possible to reduce a burden when a user who is qualified to enter or leave the restricted area re-enters the restricted area.

  Further, the entrance / exit management device of the present invention includes an entrance / exit control unit that controls prohibition / release of entry / exit to the restricted area of the user based on a determination result in the entrance / exit permission determination unit, and the restriction An unattended determination instructing unit for instructing to execute unattended determination of the restricted area after entering / exiting the area may be provided.

  As a result, when the entry / exit permission determination unit determines that the entry / exit to the restricted area is “permitted”, the entry / exit of the user to / from the restricted area is canceled and the user can enter / exit the restricted area. On the other hand, if it is determined that entry / exit to the restricted area is “non-permitted”, entry / exit of the user to / from the restricted area is prohibited, and the user cannot enter or leave the restricted area. When entry / exit to the restricted area is canceled and the user can enter / exit the restricted area, the user who has entered the restricted area may forget to input the identification information and leave. In the present invention, assuming such a situation, the unattended determination of the restricted area is executed by using the release of entry / exit to the restricted area, that is, the user being able to enter / exit the restricted area as a trigger. If it is confirmed that all users have exited due to the unattended determination, even a user whose identification information has not been correctly acquired at the time of exit is permitted to enter the restricted area. Therefore, even if the user exits without entering the identification information when the entry / exit to the restricted area is cancelled, the burden when the user re-enters the restricted area. Can be reduced.

  The access management apparatus of the present invention further includes a number information acquisition unit for acquiring information on the number of users passing through the entrance / exit of the restricted area, and the unattended determination instruction unit includes the entrance / exit of the restricted area. When there are a plurality of users who have passed, it may be instructed to execute unattended determination of the restricted area.

  Thereby, information on the number of users passing through the entrance / exit of the restricted area is acquired. When a plurality of users pass through the entrance / exit of the restricted area, a certain user may leave (so-called together) with other users. In the present invention, assuming such a situation, when the number of people who have passed through the entrance / exit of the restricted area is “plurality”, the unattended determination of the restricted area is executed using that as a trigger. If it is confirmed that all users have exited due to the unattended determination, even a user whose identification information has not been correctly acquired at the time of exit is permitted to enter the restricted area. Therefore, even if several users pass through the entrance / exit of the restricted area, even if a certain user leaves without entering the identification information, the user re-enters the restricted area. Can reduce the burden of

  The access management system of the present invention is an access management system comprising an access management device for managing the user's access to the restricted area and a monitoring device for monitoring the inside of the restricted area, wherein the monitoring device is An unmanned determination unit that monitors the restricted area and determines whether or not the restricted area is unattended and includes an unattended determination unit, wherein the access control device is configured to enter and exit the restricted area. An identification information acquisition unit that sometimes acquires the identification information of the user, an occupancy information storage unit that stores identification information of the user who has entered the restricted area as occupancy information of the restricted area, and the restriction Based on the occupancy information of the area, an entrance / exit permission determination unit that determines whether to allow the user to enter or leave the restricted area, and from the monitoring device, the unattended determination Get judgment result A determination result acquisition unit, and an occupancy information management unit that deletes occupancy information in the restricted area when it is determined by the unattended determination that the restricted area is unattended, and the entry / exit permission If the identification information of the user who wishes to enter is not stored as the occupancy information of the restricted area, the determining unit determines that the user is allowed to enter the restricted area.

  Also in this system, as described above, when it is determined that the restricted area is unattended by the unattended determination, the occupancy information of the restricted area is deleted and the user is allowed to enter the restricted area. That is, even if the user identification information is not correctly acquired at the time of exit, if the exit of all users can be confirmed by the unattended determination, the user is permitted to enter the restricted area. Therefore, it is possible to reduce a burden when a user who is qualified to enter or leave the restricted area re-enters the restricted area.

  According to the present invention, if it is determined by the unattended determination that the restricted area is unattended, the occupancy information of the restricted area is deleted and the user is allowed to enter the restricted area, thereby entering the restricted area. It is possible to reduce the burden when a user who has the qualification of entering or exiting re-enters the restricted area.

It is the schematic of the access control apparatus in the 1st Embodiment of this invention. It is a block diagram which shows the structure of the access control apparatus in the 1st Embodiment of this invention. (A) It is the figure which showed an example of the qualification management table. (B) It is the figure which showed an example of the area table. (C) It is the figure which showed an example of the occupancy management table. It is explanatory drawing of the occupancy management process in the 1st Embodiment of this invention. It is a flowchart for demonstrating the flow of the authentication process in the 1st Embodiment of this invention. It is a flowchart for demonstrating the flow of the occupancy management process in the 1st Embodiment of this invention. It is the schematic of the entrance / exit management system in the 2nd Embodiment of this invention. It is a block diagram which shows the structure of the entrance / exit management system in the 2nd Embodiment of this invention.

(First embodiment)
Hereinafter, the access monitoring apparatus of the 1st Embodiment of this invention is demonstrated using drawing. In the present embodiment, a case of an entry / exit management device that manages entry / exit of users to / from a restricted area will be described.

  The entrance / exit management apparatus according to the present embodiment performs the user's actual pass-through management when performing the user's anti-passback management in an area where the passage of the user is restricted (for example, a room where entrance / exit regulation is performed). It has a function to prevent the location and information on anti-passback management (in-room information) from being trapped. For example, even if a user who enters a restricted area forgets to enter the identification code and leaves the room, It has a function to prevent an anti-passback violation when a user re-enters the restricted area.

  Here, the term “anti-passback” will be explained briefly. The anti-passback means that, for example, when a user A having an ID card with a certain identification code A unlocks a door A using the ID card with the identification code A from the outside, the door is associated with the identification code A. A traffic history from the outer area of A to the inner area is recorded. In this state, the user A can use the card of the identification code A to unlock the door A from the inside and return, or if another door B is provided in the area inside the door A. It is also possible to unlock the door B and proceed further to the area. On the other hand, in this state (in the state where the travel history from the outside area of the door A to the inside area is recorded for the user A), another user B hands over the card of the identification code A from the user A. Even if it is done, it is prohibited to unlock the door A from the outside using the card of the identification code A. In this way, the method of prohibiting unlocking with an identification code that does not match the door opening / closing order (user movement order) is called anti-passback, and violating this anti-passback rule is called anti-passback violation. Call.

  FIG. 1 is a schematic diagram of the access management apparatus 1 of the present embodiment, and FIG. 2 is a block diagram showing the configuration of the access management apparatus 1 of the present embodiment. As shown in FIGS. 1 and 2, in the present embodiment, a door 2 with an electric lock that restricts movement between areas is installed at the boundary of a restricted area (also called a restricted area or simply an area). In the vicinity of the door 2, a card reader 3 is installed for reading a user identification code (personal identification information) from an ID card (not shown) possessed by the user entering and exiting each area. In the example of FIG. 1, two areas (“corridor” in area A and “room” in area B) are shown, one on each of the inside (area B side) and outside (area A side) of the room. Card readers 3 are set one by one. In this case, it can be said that one door 2 with an electric lock and two card readers 3 are installed as one set.

  An electric lock control device 5 that controls locking / unlocking of the electric lock 4 is connected to the door 2 with electric lock and the card reader 3. The electric lock control device 5 may be configured to be provided in each door 2 with an electric lock so as to be able to individually manage user entry / exit for each door 2. It may be configured so that one user can be centrally managed.

  As shown in FIGS. 1 and 2, the electric lock control device 5 is connected to an image sensor 6 as monitoring means for monitoring a user in a room (area B) where room entry / exit is restricted. . In addition, although illustration is abbreviate | omitted here, this image sensor 6 is also connected to the monitoring terminal installed in the monitoring console of the remote monitoring center, and the monitoring person of the monitoring center is the monitoring terminal. The user's behavior in the locker room can be monitored with an image on the monitor.

  In the present embodiment, the door 2 with the electric lock, the card reader 3, the electric lock control device 5, and the image sensor 6 constitute the access management device 1 that manages the user's access to the restricted area. Hereinafter, the configuration of each part of the access control apparatus 1 will be described in detail with reference to FIGS. 2 and 3.

  As shown in FIG. 2, the door 2 includes an electric lock 4. The electric lock 4 is normally maintained in a locked state, and is unlocked for a predetermined time when an unlock signal is received from the electric lock control device 5. As a result, the user cannot move between the areas unless the card reader 3 reads the identification code stored in the possessed ID card. When the user causes the card reader 3 to read the identification code, the card reader 3 sends the read identification code to the electric lock control device 5 to request authentication, and the electric lock control device 5 collates the received identification code. If the authentication is OK, the electric lock 4 is unlocked.

  The card reader 3 includes a control unit 7 composed of an MPU, a microcomputer, etc., a reading unit 8 that reads a user identification code from an ID card, and a storage unit 9 that stores the read identification code, own address information, and the like. The display unit 10 that displays the authentication result of the read identification code and the communication interface 11 (communication I / F) that communicates with the electric lock control device 5 are provided. When the card reader 3 reads the user identification code stored in the ID card, the card reader 3 transmits the read identification code to the electric lock control device 5 together with the self-address information.

  The ID force may be any of magnetic force, IC force, or wireless force (wireless transmitter). However, in using the access control device 1, a non-contact force is used. It is preferable that The reading unit 8 can also read biometric information such as a personal fingerprint, palm print, voice print, iris, etc. instead of the ID field, and uses the read information as an identification code for identifying the individual. Also good.

  Furthermore, the reading unit 8 can be an RFID tag reader that reads identification information of an RFID tag possessed by a user instead of an ID card. In this case, in particular, the detection range of the RFID tag reader is within a restricted area. Thus, both a person who enters the area and a person who leaves the area can be detected by one tag reader installed in the restricted area.

  The electric lock control device 5 includes a control unit 12 configured by an MPU, a microcomputer, a storage unit 13 configured by an HDD, a memory, and the like, and a communication interface 14 that performs communication with the card reader 3 and the image monitoring device 30 ( A communication I / F) and an electric lock control unit 15 for controlling the electric lock 4 of the door 2 with the electric lock. The storage unit 13 stores management information such as a qualification management table, area table, and occupancy management table, various processing programs, parameters, data, and the like. The location area stored in the occupancy management table corresponds to occupancy information of the present invention, and therefore the storage unit 13 corresponds to the occupancy information storage unit of the present invention.

  Here, the qualification management table, area table, and occupancy management table stored in the storage unit 13 will be specifically described with reference to FIG.

  FIG. 3A shows an example of the qualification management table. The qualification management table is a table showing information of users who are allowed to operate the card reader 3, that is, users who are qualified to enter and leave the restricted area by operating the card reader 3. In this example, It is a table in which an identification code of a user who can operate the card reader 3 is recorded for each address code of the card reader 3. In the example of FIG. 3A, the identification code (XXXX, YYYYY) of the user (users A and B) who can operate the card reader 3 with the address code “CR1” or the card reader 3 with the address code “CR2”. IDs (XXXX, YYYYY) of users (users A and B) who can operate are recorded in the qualification management table.

  FIG. 3B shows an example of the area table. In the area table, the address code of the card reader 3, the address code of the electric lock control device 5 (or the electric lock 4 corresponding to the card reader 3) that manages the card reader 3, and the card reader 3 are installed. 3 is a table in which a certain area (affiliation area) and a destination area after the card reader 3 is operated (an area where traffic is restricted by a door with an electric lock corresponding to the card reader 3) are associated in advance. In the example of FIG. 3B, the address code “CR1” of the card reader 3 on the hallway side, the address code “D1” of the electric lock control device 5, the belonging area “area A (hallway)”, and the destination area “Area B (room)” is associated, the address code “CR2” of the card reader 3 on the room side, the address code “D1” of the electric lock control device 5, and the belonging area “area B (room)” ) ”And the destination area“ area A (hallway) ”are associated with each other.

  FIG. 3C shows an example of the occupancy management table. The occupancy management table is a table for managing the movement history of the user, and stores at least the current location area corresponding to the identification code of the user. In the example of FIG. 3C, the current location area of the user A (identification code XXXX) is “area A (hallway)”, and the current location area of the user B (identification code YYYYY) is “area B”. (Room) "is recorded. As described later, when the occupancy information corresponding to the user identification code is deleted from the occupancy management table, the current location area of the user is reset to “neutral (neutral state)”. The

  For example, when a certain user (user A) inputs an identification code to the card reader 3 (CR1) and the authentication is successful, the user starts from the area (area A) to which the card reader 3 (CR1) belongs. It can be seen that the user has moved to the destination area (area B) (see FIGS. 3A and 3B). Therefore, in this case, the occupancy management table stores the destination area (area B) as the current location area of the user (user A) (see FIGS. 4A and 4B). .

  FIG. 3C shows an example in which only the current location area is recorded in the occupancy management table, but the scope of the present invention is not limited to this, and the occupancy management table includes For example, whenever a user's location area changes, that is, whenever a user moves an area, the area is added and stored sequentially, and is stored as history data of the user's area movement. Also good. In addition, the occupancy management table may be configured to store information on the current occupants for each area. In this case, the occupancy management table corresponds to the occupancy information of the present invention.

  Returning to FIG. 2, the description of the configuration of the electric lock control device 5 will be continued. As a functional module, the control unit 12 compares the identification information receiving unit 16 that receives the identification code read by the user from the card reader 3 and the identification code (identification code read by the user) with the qualification management table. And an entrance / exit determination unit 17 for determining whether the user can enter / exit. Here, the identification information reception unit 16 corresponds to the identification information acquisition unit of the present invention, and the entrance / exit determination unit 17 corresponds to the entrance / exit permission determination unit of the present invention.

  The entry / exit determination unit 17 determines “authentication NG” when the identification code of the user does not match the identification code registered in the qualification management table as a result of the collation, and “authentication OK” when they match. Is determined. Further, the entrance / exit determination unit 17 refers to the area table and the occupancy management table, and reads the location area (user location area) corresponding to the identification code read by the user and the identification code. It also collates with the area to which the card reader 3 belongs. As a result of the collation, if both areas match, it is determined as “authentication OK”. If both areas do not match, it is determined as “authentication NG”.

  As will be described later, when the occupancy information corresponding to the user identification code is deleted from the occupancy management table, that is, when the user's location area is reset to “neutral”, It is determined as “authentication OK” regardless of which area the card reader 3 that has read the identification code belongs to. The electric lock control unit 15 controls the locking / unlocking of the electric lock 4 of the door 2 with electric lock according to the determination result of the entry / exit determination unit 17. Therefore, the electric lock control unit 15 corresponds to the entrance / exit control unit of the present invention.

  If the electric lock control device 5 determines “authentication NG”, the electric lock control device 5 does not unlock the electric lock 4 but transmits the authentication result to the card reader 3 and ends the process. Then, the card reader 3 outputs an authentication result of authentication NG from the display unit 10. On the other hand, when it is determined that “authentication is OK”, an unlock signal is output to the corresponding electric lock 4 and an authentication result is transmitted to the card reader 3. Then, the card reader 3 outputs an authentication result of authentication OK from the display unit 10.

  In addition, after the electric lock control unit 15 unlocks the electric lock 4 of the door 2 with the electric lock, the control unit 12 makes the image sensor 6 unattended determination of the restricted area when the electric lock 4 is locked again. An unattended determination instructing unit 18 for instructing execution is provided, and a determination result receiving unit 19 for receiving a determination result of unattended determination of the restricted area from the image sensor 6. Here, the determination result reception unit 19 corresponds to the determination result acquisition unit of the present invention.

  Furthermore, the control unit 12 includes a number information acquisition unit 20 that acquires the number information of users who pass through the entrance / exit of the restricted area from the image sensor 6. Then, the unattended determination instruction unit 18 may instruct the image sensor 6 to execute unattended determination of the restricted area when there are a plurality of users who have passed through the entrance / exit of the restricted area.

  The control unit 12 includes an occupancy information management unit 21 that manages an occupancy management table stored in the storage unit 13. The occupancy information management unit 21 has a function of updating information on the user's location area in the occupancy management table when the user moves in the restricted area. The occupancy information management unit 21 has a function of deleting the occupancy information corresponding to the user identification code from the occupancy management table when it is determined by the unattended determination that the restricted area is unattended. ing.

  FIG. 4 is an explanatory diagram of occupancy management processing performed by the occupancy information management unit 21. For example, as shown in FIG. 4A, when user A is located in area A (corridor) and user B is located in area B (room), user A moves from area A. When moved to area B, as shown in FIG. 4B, the information on the area where user A is located in the occupancy management table is changed from “area A” to “area B”.

  Thereafter, when the users A and B move from the area B to the area A together, if the user A forgets to hold the ID card over the card reader 3, FIG. As shown in the figure, although the user A actually moves from the area B to the area A, the location of the user A remains in the area B in the occupancy management table. In such a case, as a result of the unattended determination by the image sensor 6, if it is determined that the restricted area is unattended, as shown in FIG. The occupancy information corresponding to is deleted, and the location area of user A is reset to “neutral”.

  As shown in FIG. 2, the image sensor 6 includes a control unit 22 configured by an MPU, a microcomputer, and the like, a storage unit 23 configured by an HDD, a memory, and the like, and an imaging unit 24 that captures a camera image in a restricted area. A communication interface 25 (communication I / F) for communicating with the electric lock control device 5 and the monitoring center is provided. As a functional module, the control unit 22 includes, as a function module, an unattended determination unit 26 that determines whether or not the restricted area is unattended based on a camera image of the restricted area (unattended determination), and a camera image near the entrance / exit of the restricted area. Based on the number of users who have passed through the entrance / exit of the restricted area, a passing number measuring unit 27 is provided.

  Here, unattended determination based on the camera image will be described in detail. The unattended determination unit 26 performs unattended determination in the restricted area from a change that occurs in the image data obtained by imaging the restricted area. The image sensor 6 buffers the image data periodically acquired by the imaging unit 24 in the storage unit 23 by a predetermined number of frames. The image data buffered in the storage unit 23 holds the latest image data by a predetermined number of frames by overwriting the oldest image data with newly received image data. Then, the unattended determination unit 26 of the image sensor 6 determines whether the restricted area is unattended from the change in the image data acquired by the imaging unit 24.

  More specifically, the image data acquired by the imaging unit 24 is compared with past image data, and a variation area composed of variation pixels whose luminance value variation is equal to or greater than a predetermined value is extracted. It is determined that the restricted area is manned when the area is equal to or larger than the predetermined reference area, and is determined to be unmanned when the area of the variable region is smaller than the predetermined reference area. Various methods are known for extracting the fluctuation region, such as an inter-frame difference method based on a difference from the immediately preceding image data and a background difference method based on a difference from a previously acquired reference image data, and will not be described in detail here. . In this way, the determination result of the unattended determination performed by the unattended determination unit 26 of the image sensor 6 is output to the electric lock control device 5.

  This unattended determination is executed based on an instruction from the electric lock control device 5. In this embodiment, after the electric lock control unit 15 unlocks the electric lock 4 of the door 2 with electric lock, when the electric lock 4 is locked, the restricted area (the affiliation of the operated card reader 3 is assigned). Area) unattended determination is executed. Alternatively, when there are a plurality of users who have passed through the entrance / exit of the restricted area (that is, the door 2 with the electric lock), the unattended determination of the restricted area may be executed. Further, when the door 2 with the electric lock is opened and then the door 2 is closed, the unattended determination of the restricted area may be executed.

  Here, an example in which the image sensor 6 performs unattended determination and passing person count based on a camera image has been described, but the scope of the present invention is not limited to this. For example, the unattended determination unit 26 may determine whether or not the restricted area is unattended using ultrasonic waves, heat rays (infrared rays), or the like. In addition, for example, the passing person counting unit 27 detects the number of passing objects by using an opposed infrared sensor or a scanning laser distance measuring sensor, or passes through the entrance / exit of a restricted area by using wireless communication with an RFID tag. The number of users may be measured.

  The image sensor 6 validates the surveillance in the restricted area based on the security setting signal input from the card reader 3 or the security setting unit (not shown), and is always in the restricted area during the period when this monitoring is valid. It may be determined whether or not is unattended. If it is determined that the restricted area is manned, an abnormal signal may be output to the remote security center and the image data of the restricted area may be transmitted.

  The operation of the entrance / exit management apparatus 1 configured as described above will be described with reference to the drawings.

  FIG. 5 is a flowchart showing a flow of authentication processing performed in the access control apparatus 1 of the present embodiment. This process is executed when a user who enters or leaves the restricted area performs an operation of holding the ID card over the card reader 3 (an operation of inputting an identification code).

  As shown in FIG. 5, when an operation (card operation) of holding the ID card over the card reader 3 is performed (S1), the access management apparatus 1 refers to the qualification management table (S2), and the input identification code Is matched with the identification code registered in the qualification management table (S3). If the identification codes do not match as a result of the collation, it is determined as “authentication NG”, and the authentication result of “authentication NG” is output to the display unit 10 of the card reader 3 (S4).

  On the other hand, if the identification codes match as a result of the collation, the presence management table and the area table are referred to (S5), the location area (user location area) corresponding to the input identification code and its identification Collation with the affiliation area of the card reader 3 that has read the code is performed (S6). As a result of the collation, when the user's location area and the area to which the card reader 3 belongs do not match, it is determined as “authentication NG” and the authentication result of “authentication NG” is output to the display unit 10 of the card reader 3 ( S4).

  On the other hand, if the user's location area matches the area to which the card reader 3 belongs as a result of the collation, it is determined as “authentication OK” and the authentication result of “authentication OK” is displayed on the display unit 10 of the card reader 3. While displaying, the electric lock 4 of the door 2 is unlocked (S7). At this time, if the user's location area is reset to “neutral”, it is determined as “authentication OK” regardless of which area the card reader 3 belongs to. Then, the information on the area where the user is located in the occupancy management table is updated (S8). For example, when the user A moves from the area A to the area B, the information on the location area of the user A in the occupancy management table is changed from “area A” to “area B” (see FIG. 4B). .

  FIG. 6 is a flowchart showing the flow of occupancy management processing performed in the access control apparatus 1 of the present embodiment. This process is executed when the user who enters or leaves the restricted area is determined to be “authenticated OK” and the electric lock 4 of the door 2 is unlocked.

  As shown in FIG. 6, the user who enters or leaves the restricted area is determined to be “authenticated OK” and the electric lock 4 of the door 2 is unlocked (S10), and after a predetermined time from the unlocking. When the electric lock 4 is locked (S11), the image sensor 6 refers to the determination result of unattended determination of the restricted area based on the camera image (S12). When it is determined that the restricted area is unattended (S13), the occupancy management table is referred to (S14), and if there is a user whose restricted area is registered as the located area (S15). ), The user's location area is reset to “neutral” (S16).

  For example, if the user A forgets to hold the ID card over the card reader 3, the user A actually manages the occupancy even though the user A has moved from the area B to the area A. In the table, the location of the user A remains in the area B (see FIG. 4C). In such a case, if it is determined that the restricted area is unattended as a result of the unattended determination by the image sensor 6, the identification code of the user A is deleted from the occupancy management table, and the location of the user A is The area is reset to “neutral” (see FIG. 4D).

  According to the entrance / exit management device 1 of the first embodiment of the present invention, when the restricted area is determined to be unmanned by the unattended determination, the room management table remains in the restricted area. The occupancy information corresponding to the user identification code is deleted, and the user is allowed to enter the restricted area. As a result, it is possible to relieve the user who is qualified to enter or leave the restricted area from violating the anti-passback, and to reduce the burden when the user re-enters the restricted area.

  That is, in this embodiment, when a user enters or leaves the restricted area, the identification code of the user is acquired, and the identification code of the user who enters the restricted area is It is stored in the occupancy management table in the restricted area. The entrance / exit management device 1 manages the user's entry into or exit from the restricted area based on this occupancy management table. For example, when an area where an identification code of a certain user is located as a restricted area and stored in the occupancy management table, it is assumed that the user has entered the restricted area (not yet exited) Exit from the restricted area is determined as “permitted”, while entry (re-entry) into the restricted area is determined as “not permitted”.

  By the way, when a certain user enters a restricted area and then leaves (so-called companion) with another user, or when the user forgets to enter the identification code when leaving In some cases, the user's identification code may not be acquired correctly when leaving. In such a case, in the conventional system, since the user's identification code is stored in the occupancy management table in association with the restricted area, the user enters the restricted area. It is mistakenly determined that the user has not yet exited, and re-entry into the restricted area is deemed “disallowed”. Once re-entry to the restricted area is “disallowed”, even users who are eligible to enter or leave the restricted area are bothersome to re-enter the restricted area. Procedures are necessary, and the user is overburdened.

  In this embodiment, when it is determined that the restricted area is unattended based on the camera image of the restricted area, the identification code of the user who remains in the restricted area in the occupancy management table is displayed. The corresponding occupancy information is deleted and the user is allowed to enter the restricted area. As described above, in the present embodiment, even if the user identification code is not correctly acquired at the time of exit, if the user's exit can be confirmed from the camera image in the restricted area, the user's restriction Admission to the area is allowed. Therefore, it is possible to reduce a burden when a user who is qualified to enter or leave the restricted area re-enters the restricted area.

  In the present embodiment, when the entrance / exit permission determination unit determines that the entry / exit to the restricted area is “permitted”, the electric lock 4 of the door 2 to the restricted area is unlocked, and the user can You can go in and out. On the other hand, if it is determined that entry / exit to the restricted area is “non-permitted”, the electric lock 4 of the door 2 to the restricted area is not unlocked, and the user cannot enter or leave the restricted area. By the way, when the electric lock 4 of the door 2 to the restricted area is unlocked and the user can enter and leave the restricted area, the user who has entered the restricted area forgets to enter the identification code and leaves. It is also possible that In the present embodiment, assuming such a situation, the unlocking of the electric lock 4 of the door 2 to the restricted area, that is, the fact that the user can enter and leave the restricted area is a trigger. An unattended determination of the restricted area is performed based on the camera image. If all the users have been confirmed to exit from the camera image in the restricted area, the user is permitted to enter the restricted area. Therefore, when the electric lock 4 of the door 2 to the restricted area is unlocked, even if the user leaves without entering the identification code, the user can re-enter the restricted area. The burden when entering can be reduced.

  In the present embodiment, information about the number of users passing through the entrance / exit of the restricted area is acquired by the image sensor 6. When a plurality of users pass through the entrance / exit of the restricted area, a certain user may leave (so-called together) with other users. In the present embodiment, assuming such a situation, when the number of people who have passed through the entrance / exit of the restricted area is “multiple people”, this is used as a trigger based on the camera image of the restricted area. The unattended determination is executed. If all the users have been confirmed to exit from the camera image in the restricted area, the user is permitted to enter the restricted area. Therefore, even if several users pass through the entrance / exit of the restricted area, even if a certain user leaves without entering the identification code, the user re-enters the restricted area. Can reduce the burden of

(Second Embodiment)
Next, an access management system according to the second embodiment of the present invention will be described. Here, the access control system of the second embodiment will be described with a focus on differences from the first embodiment. Unless otherwise specified, the configuration and operation of the present embodiment are the same as those of the first embodiment.

  FIG. 7 is a schematic diagram of the access management system of the present embodiment, and FIG. 8 is a block diagram showing the configuration of the access management system of the present embodiment. As shown in FIG. 7 and FIG. 8, in this embodiment, the access control device 1 includes a door 2 with an electric lock, a card reader 3, and an electric lock control device 5. The electric lock control device 5 is connected to an image monitoring device 30 that monitors a user in the monitoring area, and the image monitoring device 30 is connected to a monitoring camera 31 that images the inside of the monitoring area. As in the first embodiment, the image monitoring apparatus 30 is also connected to a monitoring terminal installed on a monitoring console of a remote monitoring center. The user's behavior in the locker room can be monitored with an image. The electric lock control device 5 is also connected to a accompanying detection sensor 32 installed near the entrance / exit of the monitoring area.

  The image monitoring apparatus 30 includes a control unit 33 configured by an MPU or a microcomputer, a storage unit 34 configured by an HDD or a memory, and a communication interface 35 (communication) that communicates with the electric lock control device 5 and the monitoring center. I / F). The control unit 33 includes, as a functional module, an unattended determination unit 36 that determines whether or not the restricted area is unattended based on a camera image of the restricted area (unattended determination). The accompanying detection sensor 32 detects the number of passing objects by using an opposed infrared sensor or a scanning laser distance measuring sensor, or uses a wireless communication with an RFID tag to pass through the entrance / exit of a restricted area. And a communication interface 38 (communication I / F) that communicates with the electric lock control device 5.

  The same operation effect as 1st Embodiment is show | played also by such an entrance / exit management system of 2nd Embodiment of this invention. That is, it is possible to relieve a user who is qualified to enter or leave the restricted area from violating anti-passback, and to reduce the burden when the user re-enters the restricted area.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  As described above, the access control apparatus according to the present invention has an effect of reducing the burden when a user who is qualified to enter or leave the restricted area re-enters the restricted area. It is useful because it can be applied to a management system that manages user access to restricted areas.

DESCRIPTION OF SYMBOLS 1 Entrance / exit management apparatus 2 Door 3 Card reader 4 Electric lock 5 Electric lock control apparatus 6 Image sensor 7 Control part 8 Reading part 9 Storage part 10 Display part 11 Communication interface 12 Control part 13 Storage part 14 Communication interface 15 Electric lock control part 16 Identification information reception unit 17 Entrance / exit determination unit 18 Unattended determination instruction unit 19 Determination result reception unit 20 Number information acquisition unit 21 In-room information management unit 22 Control unit 23 Storage unit 24 Imaging unit 25 Communication interface 26 Unattended determination unit 27 Passing number measurement Unit 30 Image monitoring device 31 Surveillance camera 32 Co-detection sensor 33 Control unit 34 Storage unit 35 Communication interface 36 Unattended determination unit 37 Passing number measurement unit 38 Communication interface

Claims (3)

An entry / exit management device that manages the access of users to restricted areas,
An identification information acquisition unit that acquires the identification information of the user when entering the restricted area and leaving the restricted area;
An occupancy information storage unit that stores identification information of the user who has entered the restricted area as occupancy information of the restricted area;
An entry / exit permission determination unit that determines whether to allow the user to enter or leave the restricted area based on the occupancy information of the restricted area;
A determination result acquisition unit that acquires a determination result of unattended determination from a monitoring unit that determines whether or not the inside of the restricted area is unattended;
When it is determined by the unattended determination that the restricted area is unattended, an occupancy information management unit that deletes occupancy information in the restricted area;
Based on the determination result in the entrance / exit permission determination unit, an entrance / exit control unit for controlling prohibition of entry / exit to the restricted area of the user / release of entry / exit prohibition to the restricted area,
An unattended determination instructing unit for instructing to perform unattended determination of the restricted area after the entry / exit prohibition to the restricted area is canceled;
With
If the identification information of the user who wishes to enter is not stored as occupancy information of the restricted area, the entry / exit permission determining unit determines that the user is permitted to enter the restricted area , and the permission On the basis of this determination, the entrance / exit control unit cancels the entry / exit prohibition to the restricted area . A number-of-persons information acquisition unit that acquires information on the number of users passing through the entrance / exit of the restricted area,
The entrance / exit of claim 1 , wherein the unattended determination instruction unit instructs to perform unattended determination of the restricted area when there are a plurality of users who have passed through the restricted area entrance / exit. Management device. An entry / exit management system comprising an entry / exit management device for managing entry / exit of users to / from a restricted area, and a monitoring device for monitoring the inside of the restricted area,
The monitoring device
An unattended determination unit that performs unattended determination to determine whether the restricted area is unattended by monitoring the restricted area;
The access control device
An identification information acquisition unit that acquires the identification information of the user when entering the restricted area and leaving the restricted area;
An occupancy information storage unit that stores identification information of the user who has entered the restricted area as occupancy information of the restricted area;
An entry / exit permission determination unit that determines whether to allow the user to enter or leave the restricted area based on the occupancy information of the restricted area;
A determination result acquisition unit that acquires the determination result of the unattended determination from the monitoring device;
When it is determined by the unattended determination that the restricted area is unattended, an occupancy information management unit that deletes occupancy information in the restricted area;
Based on the determination result in the entrance / exit permission determination unit, an entrance / exit control unit for controlling prohibition of entry / exit to the restricted area of the user / release of entry / exit prohibition to the restricted area,
An unattended determination instructing unit for instructing to perform unattended determination of the restricted area after the entry / exit prohibition to the restricted area is canceled;
With
If the identification information of the user who wishes to enter is not stored as occupancy information of the restricted area, the entry / exit permission determining unit determines that the user is permitted to enter the restricted area , and the permission The entrance / exit control unit releases the entry / exit prohibition to the restricted area based on the determination .