JPH06158922A - Access control device - Google Patents

Abstract

PURPOSE:To reduce the memory capacity of a central unit and hasten the unlocking response, by forcing a card used for an access control device managing a plurality of electric lock units provided with a card reader, in the central unit, to store unlocking electric codes. CONSTITUTION:The code number h3 of electric lock unit which can be unlocked by a card, is stored in the card H used for an access control device 10 managing a plurality of electrical lock units F1, F2,...Fn provided with card readers E1, E2,...En respectively in a center unit G. A temporary memory G3 is provided to tentatively store an electric lock code h3 in the center unit G. The card H is read by the card reader E to immediately unlock the door. In this way, the memory capacity of the center unit, G is reduced and unlocking response is hastened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an access control device for unprotecting only a device permitted by a permit based on data stored in the permit such as a magnetic card or an IC card. It is about.

[0002]

2. Description of the Related Art FIG. 3 is a system diagram for explaining an access control device, and FIG. 4 is an explanatory diagram showing a structure of proof data of a permit.

As shown in FIG. 3, access control
The device 1 includes a plurality of card readers A_1,… A_nAnd more electricity
Lock B_1,... B_nAnd a center device C. center
-Device C is connected to a plurality of card readers A via electric line L._1,…
A_nAnd multiple electric locks B_1,... B _nConnected to. Electrical
Lock B_1,... B_nIs control unit B_1a,... B_naAnd drive unit B_1b,... B
_nbIt has and. The center device C is a data processing unit C₁
And storage unit C₂It has and.

As shown in FIG. 4, a magnetic tape D as a storage medium is attached to a magnetic card D as a permit, and proof data d _1, ... D ₄ is stored in the magnetic tape. . The proof data d ₁ is a company code, the proof data d ₂ is a building code, the proof data d ₃ is a name code, the proof data d ₄ is an issuance number code, and the proof data d _1, ...
Many magnetic cards D _1, ... D _n having different contents of d ₄ are given to each. The issuance number code d ₄ is a code for making the lost magnetic card D unusable.

The above-mentioned magnetic card D is used in the above-mentioned access control device 1 as follows, and the access control device 1 operates as follows.

Namely, the holder of the magnetic card D _n is, to read the magnetic card D _n for example, the card reader A _n. Then, the card reader A _n is the proof data d _1n of the magnetic card D _n, ... d _4n access data added the reader identification code _{a n (d 1n, ... d} 4n, a n) to be transmitted to the center apparatus C .

The center device C uses the access data (d _1n,
... d _4n, a _n ) is received, the data processing unit C ₁ of the center apparatus C determines the access data (d
_1n, ... d _4n, company code d _1n in a _n), building code d _2n, whether name code d _3n, each of issuing times code d _4n is registered in the storage unit C ₂ of the center device C Is checked, and if registered, the process proceeds to step 2.

In step 2, the data processing unit C ₁ registers an electric lock (for example, electric locks B _1, B _2, B) registered as unlockable with the name code d _3n from the registration data in the storage unit C _2.
n ) and proceed to step 3.

In step 3, the data processing unit C ₁ uses the reader identification code a _n in the access data (d _1n, ... D _4n, a _n ) based on the reader identification code stored in the storage unit C _2. An electric lock (for example, electric lock B _n ) registered as unlockable by the card reader A _n having a _n
And proceed to step 4.

In step 4, the data processing unit C ₁ retrieves and grasps the electric lock registered in step 2 with the name code d _3n , which is registered as unlockable (for example, electric locks B _1, B _2,).
B _n ), and the electric lock (for example, electric lock B _n ) registered as unlockable of the card reader A _n having the reader identification code a _n , which is found by searching in step 3, and who is compared? The unlock command is output to the electric lock (which is the electric lock B _{n in} this example) included in the above.

Then, the electric lock B _n instructed to be unlocked in step 4 _{unlocks the} drive unit B _nb by the control unit B _na , and the data processing unit C ₁ returns to the reception waiting state. Therefore, the holder of the magnetic card D _n is
You can unlock _n .

[0012]

However, in the access control device 2 as described above, the card readers A _1, ... A _n or the electric locks B _1, ... B _n or the magnetic cards D _1, ... D _{n are used.} As the number of registered data increases, the number of registration data that must be held in the storage unit C ₂ increases, a large-capacity storage unit is required, and the time required for the collation search increases.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an access control device in which the storage capacity of a storage unit is reduced and the time required for a collation search is shortened. To do.

[0014]

In order to solve the above problems, the present invention is based on the certification data stored in each permit, and the permit among a plurality of protected devices to be managed is protected. In the access control device configured to unprotect only the device permitted by the above, the device code which can be permitted by the permit is stored as the certification data stored in each permit.

[0015]

With the above-mentioned configuration, in the access control apparatus of the present invention, since each permit itself stores the device code that can be released from protection by the permit, the conventional technique is used. In step 2 described above, "in the data processing unit of the access control device, based on the name code stored in the permit, search for and identify a device that can be unprotected by the name code (the permit). Instead of this, the data processing unit of the access control device can directly grasp the device that can be unprotected by the permit from the certificate data of the permit.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An access control device according to an embodiment of the present invention will be described below in detail with reference to FIGS. FIG. 1 is a system diagram for explaining an access control device, and FIG. 2 is an explanatory diagram showing the structure of proof data of a permit.

As shown in FIG. 1, access control
The device 10 includes a plurality of card readers E _1,… E_nAnd multiple
Electric lock F corresponding to the protected device to be managed
_1,... F_nAnd a center device G. Center
The device G uses a plurality of card readers E via electric lines L._1,… E
_nAnd multiple electric locks F_1,... F_nConnected to. Electric lock
F_1,... F_nIs the control unit F_1a,... F_naAnd drive unit F_1b,... F_nb
It has and. The center device G is a data processing unit G₁When
Storage unit G₂And temporary storage unit G₃It has and.

As shown in FIG. 2, a magnetic tape as a storage medium is attached to the magnetic card H corresponding to the permit, and the certification data h _1, ... H ₄ are stored in the magnetic tape. is there. The certification data h ₁ is a company code, the certification data h ₂ is a building code, the certification data h ₃ is an electric lock code corresponding to a device code permitted by the magnetic card H, and the certification data h ₄ is an issuance number code. Proof data h _1, ... h
Many magnetic cards H _1, ... H _n having different contents of ₄ are given to each person. The issuance number code h ₄ is a code for making the lost magnetic card H unusable.

Here, the feature that is different from the conventional example is that
Proof data h of each magnetic card H _1,... h_FourIn the obedience
Can be unlocked with the magnetic card H instead of the conventional name code
Electric lock code h₃Included in the magnetic tape
And, and card reader E_1,… E_nSent from
Access data (h_1n,... h_4n,e_n) Inside electric lock
De h_3nTemporary storage unit G for temporarily storing₃Was established
Is.

The above-mentioned magnetic card H is used in the above-mentioned access control device 10 as follows, and the access control device 10 operates as follows.

[0021] That is, the holder of the magnetic card H _n is, to read the magnetic card H _n For example, the card reader E _n. Then, the card reader E _n is the proof data h _1n of the magnetic card H _n, ... h _4n access data added the reader identification code _{e n (h 1n, ... h} 4n, e n) to be transmitted to the center apparatus G .

The center device G uses the access data (h _1n,
... h _4n, when receiving the e _n), the data processing unit G ₁ of the center apparatus G as step 1, the access data (h
_1n, ... h _4n, recognizes the direct magnetic cards H _n in unlocking possible electric lock (e.g. electric lock _{F 1, F 2, F n} ) from the electrical lock code h _3n in e _n) , An electric lock (for example, electric locks F _1, F _2, F _n ) that can be unlocked by the magnetic card H _n is stored in the temporary storage unit G ₃ , and the process proceeds to step 2.

The data processing unit G ₁ includes a step 2, the access data _{(h 1n, ... h 4n,} e n) company code h _1n in the building code h _2n, each center apparatus of issuing times code h _4n G It is checked whether or not it is registered in the storage unit G _{2 of the above} , and if it is registered, the process proceeds to step 3.

In step 3, the data processing unit G ₁ uses the reader identification code e _n in the access data (h _1n, ... H _4n, e _n ) based on the reader identification code in the storage unit G ₂ based on the reader identification code. An electric lock (for example, electric lock F _n ) registered as unlockable by the card reader E _n having e _n
And proceed to step 4.

In step 4, the data processing unit G ₁ stores an electric lock (eg, electric locks F _1, F _2, F ₂₎ which can be unlocked by the magnetic card H _n stored and stored in the temporary storage unit G ₃ in step 1.
_n ) and the electric lock (for example, electric lock F _n ) registered as unlockable of the card reader E _n having the reader identification code e _n , which is found by searching in step 3, and compared with whom The unlock command is output to the electric lock (which is the electric lock F _{n in} this example) including the above.

Then, the electric lock F _n instructed to be unlocked in step 4 _{unlocks the} drive unit F _nb by the control unit F _na , and the data processing unit G ₁ stores the data in the temporary storage unit G ₃ . It erases and returns to the waiting state. Therefore, the holder of the magnetic card H _n can unlock the target electric lock F _n .

As is apparent from the above description, in the conventional access control device 1, the center device C is used.
The data processing unit C ₁ of, in order to recognize the unlocking possible electric lock with magnetic card D _n (e.g. electric lock _{B 1, B 2, B n} ),
Based on the name code d _3n , it is necessary to search the registered data in the storage unit C ₂ for an electric lock (for example, electric locks B _1, B _2, B _n ) registered as unlockable in the magnetic card D _n. It was That is, in the conventional access control device 1, registration data for obtaining an electric lock (for example, electric locks B _1, B _2, B _n ) that can be unlocked by the magnetic card D _n based on the name code d _3n. It was necessary to store (a table relating the name code d _3n and the unlockable electric lock) in the storage unit C ₂ . An electric lock (for example, electric locks B _1, B _2, B _n ) registered as unlockable by the magnetic card D _n from the registration data of the storage unit C ₂ based on the name code d _3n.
It took a lot of time to search for.

On the other hand, in the access control device 10 of the present invention, the data processing unit G ₁ of the center device G has the proof data h _1n, ... Of the magnetic card H _n transmitted via the card reader E. An electric lock (for example, electric locks F _1, F _2, F _n ) that can be unlocked by the magnetic card H _n can be recognized directly from the electric lock code h _{3n in} h _4n .

[0029] That is, in the access control apparatus 10 of the present invention, the registration data for obtaining the unlocking possible electric lock with magnetic card H _n (e.g. electric lock _{F 1, F 2, F n} ) ( prior It is not necessary to store in the storage unit G ₂ such a table associating the name code with the unlockable electric lock, and the certification data h _{1n of the} magnetic card H _n transmitted via the card reader E. _, Temporary storage section (magnetic card D for temporarily storing the electric lock code h _3n in h _4n )
G ₃ is only required). The storage capacity is much smaller than the storage capacity for storing the registration data for obtaining the unlockable electric lock in _n ). Therefore, the conventional search time for recognizing the unlockable electric lock by the magnetic card H _n is not required.

The present invention is not limited to the above embodiment, the permit may be an IC card or a contactless card instead of a magnetic card, and the protected device to be managed is an electric lock. The terminal device is not limited to a terminal device for a database system that requires confidentiality. Further, the data transmission of the certification data or the like stored in the permit is not limited to the wired transmission, but may be wireless transmission.

[0031]

Since the access control device of the present invention is configured as described above, it is possible to provide an excellent access control device which can reduce the capacity of the storage unit and the time required for the collation search, and can be inexpensive and quick in response. Has the effect of saying.

[Brief description of drawings]

FIG. 1 is a system diagram illustrating an access control device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the structure of certificate proof data used in the access control apparatus according to the embodiment of the present invention.

FIG. 3 is a system diagram illustrating a conventional access control device.

FIG. 4 is an explanatory diagram showing a configuration of proof data of a permit used in a conventional access control device.

[Explanation of symbols]

10 Access Control Device H Permit h _n Certificate Data (where n is an integer from 1 to 4) h ₃ Device Code F _n Managed device (where n is an integer from 1 to n)

Claims (1)

[Claims] 1. An access control that unprotects only a device permitted by the permit among a plurality of protected devices to be managed based on the certification data stored in each permit. An access control device, characterized in that, in the device, a device code that can be permitted by the permit is stored as proof data stored in each permit.