JP4456971B2 - Access control system - Google Patents

Description

  The present invention relates to an entry / exit management system for managing entry / exit of a plurality of areas by a user, and more particularly, to a system for improving user convenience.

  Conventionally, in various facilities such as research and development facilities, access control systems have been installed to ensure security. In a typical access control system, an electric lock is installed at the entrance / exit of the area to be managed. Then, the identification code is acquired from the user's card or the like, and if the identification code is successfully authenticated, the electric lock is released. Thereby, only users registered in advance are allowed to enter and exit the target area. Recently, with the demand for higher security, a technique using biometric information such as a fingerprint as an identification code has been put into practical use.

Conventional typical access control systems simply determine whether a user is registered. On the other hand, in a further application example of the access control system, it is possible to restrict a user who leaves the specific area according to the nature of the area. For example, a system for restricting exit from a contaminated area has been proposed, and in this system, exit is restricted until the contamination level is reduced by using an air shower (Patent Document 1).
Japanese Patent Laid-Open No. 3-105590 (page 2-3, FIG. 1)

  However, in the system of Patent Document 1, when leaving the contaminated area, it must pass through the shower room every time, and it cannot be said that convenience is good.

  More specifically, the use of a shower is necessary because contamination can adversely affect the area that you will go to after leaving. However, after the user leaves the contaminated area, the user is not always directed to the area affected by the contamination, and may go to the area not affected by the contamination. Despite this, the use of showers has been required uniformly in the past, and this has taken time and effort to enter and exit, making usability worse.

  In the above, the conventional problem was explained by taking up the contaminated area. However, the same problem may arise when the management target includes not only the contaminated area but also an area having a cause that should restrict the movement of users to other areas.

  The present invention has been made under the above-described background, and an object thereof is to provide an access control system capable of improving convenience when an area such as the above-mentioned contaminated area is included in the management target.

  The access management system according to the present invention includes a plurality of code acquisition means provided in each access section of a plurality of areas for acquiring a user identification code, and entry into a predetermined prohibited area in the plurality of areas is prohibited. Corresponds to the acquired identification code when the identification code is acquired by the prohibited state storage means for storing information indicating a prohibited user and the exit code acquisition means for exiting the predetermined prohibited cause area of the plurality of areas A prohibiting start means for registering a user to be registered in the prohibited state storage means as the prohibited user and starting a prohibited state; a timing means for measuring an elapsed time since the prohibited state of the prohibited user started; and A prohibition ending unit for erasing the prohibition user registration in the prohibition state storage unit and ending the prohibition state when the elapse of a predetermined prohibition time is counted by the timing unit; When the identification code is acquired by the code acquisition means for entering the area, the passage for determining whether or not the passage is permitted depending on whether or not the user corresponding to the acquired identification code is registered in the prohibited state storage means Permission determination means. Here, the prohibited cause area is an area having a prohibited cause that should be prohibited from moving to the prohibited area. Further, the prohibition time is appropriately set in advance so that the cause of the prohibition disappears with the passage of time. For example, the prohibited area is a contaminated area, the prohibited area is a microbial chamber affected by the contamination, and the prohibited time is the time required for the contamination level to fall to an acceptable level.

  According to the above configuration, when a user leaves the prohibited cause area, the user is registered as a prohibited user in the prohibited state storage unit, and a prohibited state is set. When the prohibition time elapses, the registration in the prohibition state storage unit is deleted and the prohibition state is released. Therefore, after leaving the prohibited cause area, entry to the prohibited area is restricted. If the user does not go to the prohibited area after leaving the prohibited cause area, the user need not remove the prohibited cause. In addition, if the user waits for the prohibition time to elapse, the user can use the prohibited area without removing the cause of the prohibition. In this manner, according to the present invention, the user can arbitrarily select whether or not to perform the work of removing the prohibition cause such as contamination, thereby improving convenience.

  Preferably, the access management system according to the present invention is adapted to use an identification code acquired when an identification code is acquired by a code acquisition means for exiting a predetermined prohibition cancellation cause area of the plurality of areas. And a prohibition canceling means for deleting the registration of the person from the prohibition state storage means and canceling the prohibition state even before the prohibition time has elapsed.

  According to the above configuration, when the user leaves the prohibition cancellation cause area, the registration of the prohibition state storage unit is deleted and the prohibition state is released even before the prohibition time has elapsed. Therefore, after using the prohibited cause area, the user can use the prohibited target area at an early stage by using the prohibited release cause area.

  As described above, the access management system of the present invention can improve the convenience for the user when an area such as a contaminated area is included in the management target.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described with reference to the drawings.

  FIG. 1 shows an entrance / exit management system according to the present embodiment together with a facility to be managed. In the example of FIG. 1, areas (zones) A to E are provided in the management target facility. Area A is a microorganism room, area B is a contaminant room, and area C is an air shower room. Area D is a shared passage for moving between areas A to C, and area E is outside the building.

  In the access management system of the present embodiment, entry into the area A (microbe room) is normally permitted. However, after leaving the area B (contaminant room), entering the area A is prohibited for a certain period of time until the influence of the area B disappears. Further, if the area C (air shower room) is passed during the prohibited time, the entry prohibition to the area A is cancelled. Such entrance / exit management is realized by the system configuration described below.

  Here, the area A is an area where the user is prohibited from entering, and corresponds to the prohibited area of the present invention. Area B is an area having a cause of entry prohibition to area A, and corresponds to a prohibition cause area of the present invention. Furthermore, area C is an area having a cause for canceling the prohibition of entry into area A, and corresponds to a prohibition canceling cause area of the present invention.

  In FIG. 1, a door D1 with electric lock and two card readers CR1 and CR2 are provided at an entrance / exit of area A (a boundary between area A and area D). The door D1 with an electric lock is a partition that restricts movement between areas, and the card readers CR1 and CR2 are devices that read an identification code from an ID card possessed by a user who enters and exits a managed facility. The card reader CR1 is provided in the area A and is used when leaving the area A. On the other hand, the card reader CR2 is provided outside the area A and is used when entering the area A. The door D1 with electric lock and the card readers CR1 and CR2 are connected to the electric lock control device M1, and the electric lock control device M1 is installed at an appropriate place such as a wall surface.

  Similarly, doors with electric locks, card readers, and electric lock control devices are also provided at the other doorways. That is, the door D2 with electric lock and the card readers CR3 and CR4 are installed at the entrance / exit of the area B (the boundary between the area B and the area D), and these are connected to the electric lock control device M2. At the entrance / exit of area C (between area C and area D), an electric lock door D3 and card readers CR5 and CR6 are installed, and these are connected to the electric lock control device M3. Furthermore, an electric lock door D4 and card readers CR7 and CR8 are installed at the boundary between the area D and the area E, and these are connected to the electric lock control device M4.

  In the following description, the doors D1 to D4 with electric locks are collectively referred to as doors D with electric locks, and the card readers CR1 to CR8 are collectively referred to as card readers CR, and the electric lock control devices M1 to M4 are collectively referred to. When doing so, it is called an electric lock control device M.

  In addition, in the structure of FIG. 1, the electric lock control apparatus M is provided for every door D with an electric lock. However, one electric lock control device may be configured to centrally manage a plurality of doors with electric locks.

  Next, each component of the access management system of this Embodiment is demonstrated.

  The door D with an electric lock is provided with an electric lock. The electric lock 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 M. Until the identification code stored in the ID card held by the user is read by the card reader CR, the electric lock is not unlocked and the user cannot move between the areas. When the user causes the card reader CR to read the identification code, the identification code is sent from the card reader CR to the electric lock control device M. The identification code is verified by the electric lock control device M, and if the authentication is successful, the electric lock is unlocked.

  FIG. 2 shows the configuration of the card reader CR. The card reader CR communicates with the control unit 10 configured by an MPU, the storage unit 12 that stores an address code that identifies each card reader CR, a processing program, various parameters, data, and the like, and the electric lock control device M. The communication interface 14 for reading, the reading part 16 which reads the identification code which is a user's personal identification information memorize | stored in ID card, and the display part 18 comprised with a liquid crystal monitor, LED, etc. are provided.

  The ID card may be a magnetic card, an IC card, a wireless card (transmitter), or the like. From the viewpoint of system convenience, the ID card is preferably a contactless card.

  Further, within the scope of the present invention, the means for acquiring the identification code is not limited to the above card reader CR. The code acquisition means may acquire a code from an object other than the card. For example, the code acquisition means may be a device that acquires biometric information such as an individual's fingerprint, palm print, voice print, and iris. The acquired biometric information is processed as an identification code for identifying an individual. At this time, of course, the biometric information may be converted into an appropriate code.

  A plurality of code acquisition means may be used in combination. For example, an ID card identification code and biometric information as an identification code may be used in combination. In this case, a fingerprint reader or the like is provided together with the card reader CR.

  FIG. 3 shows the configuration of the electric lock control device M. The electric lock control device M includes a control unit 20 including an MPU, a time measuring unit 22 having a time measurement function using a clock, an address code for identifying each electric lock control device M, management information, a processing program, A storage unit 24 that stores various parameters, data, and the like, a communication interface 26 that communicates with a card reader CR and an electric lock to be managed, and communicates with other electric lock control devices M, and a lock of the door D with an electric lock. And an electric lock control unit 28 for controlling unlocking.

  In the storage unit 24 of the electric lock control device M, (1) a management table, (2) an area table, (3) a restricted area table, and (4) a prohibition table are stored as management information.

  The management table is a table in which identification codes of users who are permitted to operate the card reader CR are recorded. The management table is used for collation of the identification code read by the card reader CR.

  As shown in FIG. 4, the area table is an area in which the address code of each electric lock control device M that manages each card reader CR, the address code of each card reader CR, and the card reader CR is installed. It is a table which matches a location area, an electric lock corresponding to the card reader CR, and a destination area after operating the card reader CR. It can be said that the destination area is an area where traffic is restricted by the door D with the electric lock corresponding to the card reader CR.

  In the present embodiment, each electric lock control device M stores a table relating to its own control target in FIG. For example, the electric lock control device M1 stores a table for the card readers CR1 and CR2 in FIG. However, each electric lock control device M may store information on the entire system (the whole in FIG. 4). The same applies to the control area table of FIG. 5 and the prohibition table of FIG.

  The restriction area table has information for generating an instruction (prohibition information) for prohibiting the operation of the predetermined card reader CR for a predetermined time corresponding to the card reader CR operated as the restriction information, and is already set. Information for generating an instruction to cancel the prohibition (prohibition cancellation information). FIG. 5 shows a restricted area table. In the restricted area table, the address code of the card reader CR to be operated, the address code of the restricted card reader CR, the restriction type (prohibited / removed), and prohibited Time is associated.

  Specifically, in the restriction area table of the electric lock control device M2 in area B, area A is set as the restriction area corresponding to area B, and the card reader CR2 (to area A) is set as the restriction card reader. (For entering the room) is set. The restriction type is “prohibited” and the prohibition time is set to 10 hours. The prohibition time is a time during which entry into a predetermined area to be prohibited is prohibited. In the example of FIG. 5, for example, it is necessary for the contamination level to fall to a level where there is no problem even if entering the area A. It's time. Based on such a table setting, as described later, when the card reader CR3 in the area B is operated, the restriction area table is referred to by the electric lock control device M2, and the corresponding use is applied to the electric lock control device M1 in the area A. The person is prohibited from entering.

  In the restricted area table of the electric lock control device M3 in area C, area A is set as the restricted area corresponding to area C, and card reader CR2 is set as the restricted card reader. The type of is “Release”. When the card reader CR5 in area C is operated according to such settings, the restriction area table is referred to by the electric lock control device M3, and the entry prohibition of the corresponding user is released to the electric lock control device M1 in area A. Instructed.

  Here, as described above, area A, area B, and area C are a prohibited area, a prohibited cause area, and a prohibited release cause area of the present invention, respectively. As shown in the above description, the restricted area table has information indicating the prohibited area (area A) corresponding to the prohibited cause area (area B), and the prohibited release cause area (area C). The information indicating the prohibited area (area A) corresponding to.

  Next, the prohibited table is a table for recording users in a prohibited state (hereinafter referred to as prohibited users). The prohibited state is a state in which the use of the ID card in the card reader CR for passing to a predetermined area is prohibited. The restriction area table is a table set in advance, whereas the prohibition table is a table that is sequentially rewritten.

  FIG. 6 shows an example of the prohibition table. The prohibition table associates the identification code of the prohibited user with the card reader to be prohibited. FIG. 6 is a prohibition table of the electric lock control device M1 in area A, and the user X and the user Y are associated with the card reader CR2. In this case, the user X and the user Y are in a state where they cannot enter the area A using the card reader CR2.

  In the prohibition table, prohibition time and elapsed time information are recorded in association with the identification code and the card reader. The elapsed time information is information indicating the elapsed time from the start of the prohibited state, that is, information indicating how much the prohibited time has been consumed. In the example of FIG. 6, the elapsed time information is the elapsed time itself. However, the elapsed time information may be other information indicating the elapsed time, for example, the remaining time until the prohibition time ends. The elapsed time information is managed for each prohibited user and updated as time passes.

  The prohibition table constitutes a prohibition state storage unit of the present invention. In the present embodiment, an identification code is recorded as information indicating a prohibited user. However, other information that can identify the prohibited user may be recorded within the scope of the present invention.

  The various management tables stored in the storage unit 24 of the electric lock control device M have been described above. Next, control processing of the control unit 20 using these tables will be described with reference to the flowcharts of FIGS.

  FIG. 7 is a flowchart showing the prohibition table update process. In FIG. 7, the control unit 20 first determines whether or not prohibition information has been received (S10). When the prohibition information is received, the control unit 20 writes the prohibition information in the prohibition table of the storage unit 24 (S12), and starts counting the prohibition time (S14).

  Here, the prohibition information is information sent from another electric lock control device M in the process of FIG. The prohibition information includes information indicating the card reader CR (or area, the same applies hereinafter) to be prohibited, an identification code of a user to be registered as a prohibited user, and a prohibition time. In step S12, according to the prohibition information, information such as an identification code is written in the prohibition table as shown in FIG. At this time, the control unit 20 registers the prohibited user in the prohibition table constituting the prohibition state storage unit and starts the prohibition state, and functions as the prohibition start unit of the present invention. Further, in the timing start process in step S14, the control unit 20 writes elapsed time information in the prohibition table. Thereafter, the elapsed time information is sequentially rewritten based on the time information obtained from the time measuring unit 22.

  After step S14, the process of the control unit 20 proceeds to step S16. If the prohibition information is not received in step S10, the process proceeds to step S16. In step S16, it is determined whether prohibition release information has been received. If the prohibition release information has not been received, the process proceeds to step S18 to determine whether or not the prohibition time has elapsed. This determination is made for each prohibited user. If the prohibition time of a certain user has elapsed, the control unit 20 deletes the corresponding prohibition information from the prohibition table (S20). At this time, the control unit 20 deletes the registration of the prohibited user and ends the prohibited state, and functions as a prohibition ending unit of the present invention.

  Further, it is assumed that prohibition release information has been received in step S16. The prohibition release information, like the above prohibition information, is information sent from another electric lock control device M in the process of FIG. 8 to be described later. The prohibition release card reader CR (or area, the same applies hereinafter) And the identification code of the prohibited user to be released from the prohibited state. When the prohibition release information is received, the control unit 20 proceeds to step S20 and deletes the prohibition information of the corresponding user from the prohibition table. At this time, the control unit 20 deletes the registration of the prohibited user and cancels the prohibited state, and functions as a prohibition canceling unit of the present invention.

  After the erasing process in step S20 or when the determination in step S18 is No, the process of the control unit 20 returns to step S10.

  Next, FIG. 8 shows an authentication control process by the control unit 20 of the electric lock control device M. The control unit 20 determines whether an authentication request is received from the card reader CR (S30). If no authentication request has been received, the process returns to step S30. When the user causes the card reader CR to read the identification code, the card reader CR reads the identification code and transmits it to the electric lock control device M, whereby the determination in step S30 is Yes, and the control unit 20 sends an authentication request. The identification codes included in the are collated (S32). Here, the control unit 20 collates the received identification code with the management table stored in the storage unit 24. If an identification code that matches the received identification code is not registered in the management table, the determination in step S34 is No and the authentication result is NG (S38). The electric lock is not unlocked, and the control unit 20 sends the authentication result to the card reader CR via the communication interface 26. In the card reader CR, the authentication result is received by the communication interface 14. Then, the control unit 10 causes the display unit 18 to output an authentication result.

  If the received identification code matches the identification code in the management table in step S32, the collation result in step S34 is OK. In step S36, the control unit 20 refers to the prohibition table in the storage unit 24 and determines whether or not the received identification code is in a prohibition state (S38). Here, the control unit 20 determines whether or not the received identification code is registered as a prohibited state identification code in the prohibition table. If the prohibited state is set, the process proceeds to step S38, and the authentication result is NG. As described above, the electric lock is not unlocked, and the authentication result is transmitted to the card reader CR and displayed on the display unit 18.

  On the other hand, when the prohibition state is not set for the received identification code, the determination in step S36 is No, the authentication result is OK in step S40, and the control unit 20 performs unlock control. The electric lock control unit 28 functions and an unlock signal is sent to the door D with the electric lock. In the door D with the electric lock, the electric lock is unlocked according to the unlock signal. Further, the control unit 20 sends the authentication result to the card reader CR, and the authentication result is output from the display unit 18 in the card reader CR.

  If the authentication is OK in step S40, the control unit 20 next determines whether there is restriction information corresponding to the card reader CR in the restriction area table of the storage unit 24 (S42). If there is no restriction information, the process of the control unit 20 returns to step S30. When there is restriction information, the control unit 20 determines whether the restriction information indicates prohibition information or prohibition release information (S44). If the restriction information indicates prohibition information, the control unit 20 sends the prohibition information to the corresponding electric lock control device M (S46). If the restriction information indicates prohibition release information, the control unit 20 controls the corresponding electric lock control. The prohibition release information is transmitted to the device M (S48).

  The prohibition information and the prohibition release information are used in the process of FIG. When the prohibition information is sent, it is determined in step S10 of FIG. 7 that the prohibition state has been received, and the prohibition information is registered in the prohibition table in S12. When the prohibition release information is sent, it is determined in step S16 that the prohibition release information has been received, and in step S20, the corresponding prohibition information is deleted from the prohibition table.

  Next, a specific operation of the access management system according to the present embodiment will be described. First, it is assumed that the user X registered in the present system leaves the area B. At this time, the user X causes the card reader CR3 in area B to read the ID card identification code. As a result, the identification code is sent from the card reader CR3 to the electric lock control device M2.

  The electric lock control device M2 determines that the authentication request has been received in step S30 of FIG. Then, the identification code is verified in step S32, and the verification is OK in step S34. In step S36, the control unit 20 determines that the user X is not in the prohibited state. As a result, the authentication result becomes OK in step S40, unlock control is performed, and the electric lock of the door D5 with electric lock is unlocked.

  Next, in steps S42 and S44, the restricted area table of FIG. 5 is referred to. As shown in FIG. 5, in the restriction area table of the electric lock control device M2, restriction information corresponding to the card reader CR3 exists, and the restriction information is prohibition information. Therefore, the determination in steps S42 and S44 is Yes, and the prohibition information is transmitted in step S46. The prohibition information is sent to the electric lock control device M1 in the restricted area A. As prohibition information, information indicating the card reader CR2, an identification code, and a prohibition time are sent.

  When receiving the prohibition information, the electric lock control device M1 determines that the prohibition information has been received in step S10 in the process of FIG. 7, and the prohibition information is written in the prohibition table in step S12. Here, the identification code and the prohibition time are written in the prohibition table. In step S14, the user X starts measuring the elapsed time from the prohibited state setting.

  The above is the operation when the user X leaves the area B. Next, it is assumed that the user X tries to go to the area A after leaving the area B. When the user X causes the card reader CR2 for entering the area A to read the identification code, the identification code is sent to the electric lock control device M1 as an authentication request. In the electric lock control device M1, Step 30 in FIG. 8 is Yes, and the processing after Step S32 is performed.

  However, in this case, a prohibition state is set for the user X in the prohibition table of the electric lock control device M1. Therefore, the determination in step S36 is Yes, the authentication result is NG in step S38, and the electric lock is not unlocked. The authentication result is displayed on the display unit 18 of the card reader CR2. Therefore, the user X cannot enter the area A.

  Next, it is assumed that the user X tries to enter the area A after the prohibition time has elapsed after leaving the area B. The prohibited time is set to 10 hours in the restricted area table of FIG. Until the prohibition time elapses, the process of FIG. 7 is repeatedly performed in the electric lock control device M1. When the prohibition time has elapsed, the determination in step S18 in FIG. 7 is Yes, and the prohibition information of the user X is deleted from the prohibition table in step S20. As a result, the prohibited state is released. Therefore, when the identification code of the user X is sent after the prohibition time has elapsed, the determination in step S36 in FIG. 8 is No, the authentication result is OK in step S40, and unlock control is performed. User X can enter area A.

  Further, it is assumed that the user X enters the area C before the prohibition time elapses and then exits the area C. When the user X leaves the area C and causes the card reader CR5 to read the identification code, the identification code is sent to the electric lock control device M3. In the electric lock control device M3, the determination in step S30 in FIG. 8 is Yes, and the processing after step S32 is executed. In this case, the control unit 20 determines that control information exists in step S42, and determines that the control information is prohibition release information in step S44. And the control part 20 transmits prohibition cancellation | release information to the electric lock control apparatus M1 of the restriction | limiting area A in step S48. As the prohibition release information, the identification code of the user X is sent together with information indicating the card reader CR2 to be released.

  In the electric lock control device M1, when the prohibition release information is received, the determination in step S16 is Yes in the process of FIG. 7, and the prohibition information of the user X is deleted from the prohibition table in step S20. As a result, the prohibited state is released. Thereafter, it is assumed that the user X goes to the area A and causes the card reader CR2 to read the identification code. Since the prohibition state is released, in the authentication control of FIG. 8 by the electric lock control device M1, the authentication result is OK and the unlock control is performed. Therefore, the user X can enter the area A by opening the door D1 with the electric lock.

  As described above, in the present embodiment, after the user X leaves the contaminant room in area B, entry into only the microorganism room in area A is restricted. Although the influence of the pollutant room does not reach the human body, it may be a problem for microorganisms and small animals. In such cases, the adverse effects of contamination are effectively avoided.

  Moreover, the user X does not have to go to the shower room in the area C unless he / she plans to go to the microbe room in the area A after leaving the pollutant room in the area B. Also, the user X does not have to go to the area C when going to the area A after a considerable amount of time has passed after leaving the area B. On the other hand, when going to area A relatively soon after leaving area B, user X should go to area C and then go to area A. Thus, the user X is not forced to use the shower after leaving the area B, and can arbitrarily select whether or not to use the shower according to the timing of going to the area A. Therefore, the labor required for entering and leaving is reduced, and convenience is improved.

  The preferred embodiments of the present invention have been described above. As described in the above description, in the present embodiment, the storage unit 24 of the electric lock control device M corresponds to the prohibition state storage unit of the present invention, and the control unit 20 includes the prohibition start unit, the prohibition end unit, and the prohibition unit. It corresponds to the release means. When the user leaves the prohibited cause area, the user is registered as a prohibited user in the prohibited state storage unit, and entry into the prohibited area is prohibited. When the prohibition time has elapsed, the registration of the prohibition state storage unit is deleted, and the prohibition state is released. Further, when the user leaves the prohibition cancellation cause area, the registration in the prohibition state storage unit is deleted and the prohibition state is released even before the prohibition time has elapsed.

  Therefore, after leaving the prohibited cause area, entry to the prohibited area is restricted. If the user does not go to the prohibited area after leaving the prohibited cause area, the user need not remove the prohibited cause. Moreover, if the user waits for the prohibition time to elapse, the user can use the prohibited area without removing the cause of the prohibition. In addition, after using the prohibited cause area, the user can use the prohibited target area immediately by using the prohibited cause area. In this way, the user can select whether or not to perform the work of removing the prohibition cause such as contamination, thereby improving convenience.

  Further, in the above-described embodiment, the present invention is applied to a distributed system in which a control device is provided at each access unit. Then, a prohibition start instruction is sent from the control device in the prohibition cause area to the control device in the prohibition target area, and a prohibition release instruction is sent from the control device in the prohibition release cause area to the control device in the prohibition target area. ing. By such cooperation between the control devices, the system of the present invention is suitably realized by changing a program or the like without adding a special configuration.

  As already described, the present invention may be applied to a centralized management system. Referring to the example of FIG. 1, the control device for centralized management is connected to all the electric lock doors D1 to D4 and all the card readers CR1 to CR8 of FIG. Perform control processing using a table. In this case, communication between control devices and related processing can be reduced.

  Further, as one modification of the present embodiment, as described below, the prohibition cause area and the prohibition target area may be the same area, and such a configuration is also included in the scope of the present invention.

  That is, in the above-described embodiment, after entering the area B, entry into the area A is prohibited, and entrance restrictions based on leaving are performed in different areas. On the other hand, in the same area, entry may be restricted based on exit. In this case, in the restricted area table of FIG. 5, the restricted area of area B is changed from area A to area B, and the restricted card reader is changed from card reader CR2 to card reader CR4 (area B entry card reader). Just do it. Furthermore, the restricted area of area C may be changed from area A to area B, and the restricted card reader may be changed from card reader CR2 to card reader CR4. Thereby, after leaving the area B, if the predetermined time does not elapse or if the area C is not passed, it becomes impossible to re-enter the area B.

  In addition, this invention is not limited to the above-mentioned embodiment, Of course, those skilled in the art can modify the above-mentioned embodiment within the scope of the present invention.

  As described above, the access management system according to the present invention can manage the access in a plurality of areas and is useful.

It is a figure showing the whole access control system composition concerning an embodiment of the invention. It is a block diagram which shows the structure of a card reader. It is a block diagram which shows the structure of an electric lock control apparatus. It is a figure which shows an area table. It is a figure which shows a restriction | limiting area table. It is a figure which shows a prohibition table. It is a flowchart which shows the update process of the prohibition table in the control part of an electric lock control apparatus. It is a flowchart which shows the authentication control process in the control part of an electric lock control apparatus.

Explanation of symbols

D1-D4 Door with electric lock CR1-CR8 Card reader M1-M4 Electric lock control device 10 Control unit 12 Storage unit 14 Communication interface 16 Reading unit 18 Display unit 20 Control unit 22 Timekeeping unit 24 Storage unit 26 Communication interface 28 Electric lock control Part

Claims (2)

An entry / exit management system for managing access to multiple areas by users,
A plurality of code acquisition means for acquiring a user identification code provided at each access section of the plurality of areas;
A prohibited state storage means for storing information indicating a prohibited user who is in a prohibited state of entering a predetermined prohibited area of the plurality of areas;
When the identification code is acquired by the code acquisition means for exiting the predetermined prohibited cause area of the plurality of areas, the user corresponding to the acquired identification code is registered in the prohibited state storage means as the prohibited user. And a prohibition start means for starting the prohibition state,
A time measuring means for measuring an elapsed time from the start of the prohibited state of the prohibited user;
A prohibition ending unit for erasing the prohibition user registration in the prohibition state storage unit and ending the prohibition state when a predetermined prohibition time has elapsed by the timing unit;
When the identification code is acquired by the code acquisition means for entering the prohibited area, whether the user corresponding to the acquired identification code is permitted in accordance with whether or not the user is registered in the prohibited state storage means. A passage permission judging means for judging;
An access control system characterized by comprising   When the identification code is acquired by the code acquisition means for exiting the predetermined prohibition cancellation cause area of the plurality of areas, the registration for the user corresponding to the acquired identification code is deleted from the prohibited state storage means. The entrance / exit management system according to claim 1, further comprising prohibition canceling means for canceling the prohibition state even before the prohibition time has elapsed.

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