JP2764406B2 - IC card access control system - Google Patents

Description

Description: BACKGROUND OF THE INVENTION The present invention relates to a system for managing entry and exit in a number of areas such as a building and each room in the building, and particularly to a terminal at an entrance and exit of each area. The present invention relates to an IC card entrance / exit management system in which an entrance and an exit are unlocked by installing an IC card as a key in the terminal.

[Conventional technology]

Conventionally, a system using a card as a key for a room or the like is known. This is because a terminal, which is a card reader / writer, is installed at the entrance of a room or the like, and a PIN is stored in this terminal, and a PIN is also stored in the card, and this card is attached to the terminal. Then, the personal identification numbers are compared, and when they match, the terminal operates the door unlocking means to unlock.

Conventionally, a magnetic card is generally used as a card in this case, but there is a problem in terms of data confidentiality, and the use of an IC card has been proposed (for example, Japanese Patent Application Laid-Open No. 61-49081). No.).

By the way, in such a system, there is no problem when a room such as a hotel and a person using the room correspond one to one. However, for example, when a single person uses many rooms, such as in a research laboratory or a factory, a card is required for each room, and as the number of rooms used increases, card management becomes difficult. It also takes time to find the card you want to use.

Therefore, as a countermeasure for this, each terminal stores the personal identification number of the card used for it, and when the card with the personal identification number corresponding to one of these is installed, the door is unlocked. The host manages a card that can be used for each terminal on the host side, and when a card is inserted into the terminal, the terminal unlocks the door by installing this card. A system has been proposed in which it is determined on the host side whether or not to make the connection. According to these systems, a user can use a single card as a key for a plurality of doors.

[Problems to be solved by the invention]

However, in any of the above conventional systems, the terminal only functions as a keyhole of a key, and the IC card only functions as a key, and no consideration is given to room management.

As a conventional room management method, a method is known in which a management book is placed in each room, and people who enter and leave this room fill in this management book, but it is very burdensome for people who have to go in and out once In addition, this method can manage rooms, but on the other hand, cannot control which room a person has used.

SUMMARY OF THE INVENTION An object of the present invention is to provide an IC card entry / exit management system capable of solving such a problem and managing an area user without imposing a burden on the user.

[Means for solving the problem]

In order to achieve the above object, the present invention writes information on a terminal whose door has been unlocked by an IC card as history information on the IC card, and the written history information can be read by a host terminal. The overwriting of the history information in the IC card can be arbitrarily enabled or disabled.

[Operation] When an IC card is inserted into a terminal and the door is unlocked, information on the terminal is used as history information in this IC.
Written on the card. This history information includes information such as the identification number of the terminal and the date and time when the unlocking was performed. Therefore, the history information is written in the IC card in the order of the unlocked terminals.

The history information written on the IC card can be read by the host terminal, and the history information can be stored in the host as personal management information.

Also, for example, when only recent history information is required, overwriting can be performed by writing new history information while deleting old history information with an IC card, and when a series of history information is required, an IC card can be used. By disabling overwriting and transferring the history information to the host, the IC card can be reused.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of an IC card entry / exit management system according to the present invention, wherein 1 is a host, 2 is a system card, 3 is a user card, 4a and 4b are entry / exit terminals, and 5 is an entry / exit terminal. An electric lock controller, 6 is an electric lock, 7 is an automatic door controller, and 8 is an automatic door.

In the figure, an entrance / exit terminal is located in a security area that requires management of access to people, such as a factory where specific people such as employees can enter or exit, or a room where only a limited number of people can enter and exit. Machine is provided,
Here, it is assumed that the entry / exit terminal 4a is provided at the entrance of a room where the room is located, and the entrance / exit terminal 4b is provided at a gate of a building where the room is located.

In addition, entrance / exit terminals are provided at the entrances and exits of all security areas, and furthermore, at each entrance / exit, an entrance to enter the security area from here outside this entrance and a security terminal from here inside this entrance / exit. An entry / exit terminal is provided on each of the exit side that exits outside the retail area. However, in FIG. 1, only two gate terminals 4a and 4b are shown, the entrance / exit terminal 4a is on the entrance side of the entrance of the room, and the entrance / exit terminal 4b is the entrance gate of the building having this room. It is assumed that each is provided on the entrance side.

By the way, when considering the above-mentioned room and building, generally, the entrance and exit of a room with this building is strictly controlled with respect to the entrance and exit of the building. In other words, although the restrictions on people entering and exiting a building are relatively moderate, the number of people who can enter and exit rooms in this building is severely restricted. In addition, although people are on the same premises, the entrance and exit of people are slow or severe depending on the building inside. In this way, it is said that the strictness of the entry and exit of people is high,
Conversely, looseness is called low security, and the high and low security levels are expressed as security levels.

Therefore, the security level corresponding to the security level of the security area in which this is installed is also set for the entry / exit terminal. The retention level is high.

An electric lock controller 5 and an electric lock 6 are provided at the door of the room provided with the entry / exit terminal 4a, and the entry / exit terminal 4a is provided.
Corresponds to the keyhole of this lock. In addition, an automatic door controller 7 is provided at the passage gate provided with the entry / exit terminal 4b, thereby restricting the automatic door 8. However, the entry / exit terminal 4b is also provided with a key for activating the automatic door 8. Equivalent to a keyhole.

The user card 3 corresponds to these keys. The user card 3 is an IC card, and has the same security level as the entry / exit terminal. Generally, a user card with a higher security level can be unlocked in a security area with a higher security level.
For example, assuming that the security level of the user card 3 is higher than the security level of the entry / exit terminal 4a, the electric lock 6 can be unlocked by attaching the user card 3 to the entry / exit terminal 4a. Not only that, the same user card 3 is attached to the entry / exit terminal 4b, so that the automatic door controller 7 can activate the automatic door 8. However, if the security level of the user card 3 is higher than the entry / exit terminal 4b but lower than the entry / exit terminal 4a, the user can insert the user card 3 into the entry / exit terminal 4b to activate the automatic door 8. Although the operating state can be set, the electric lock 6 is not unlocked even if the user card 3 is attached to the entry / exit terminal 4a.

As described above, the security level is set in the user card 3, and when the security level is used, the security level is compared with the security level of the entry / exit terminal, whereby the security level is set. A check is made of the user's entry / exit qualification in the retail area.

Further, in this user card 3, every time the user enters or leaves the security area, the entrance side of the entrance / exit of the area,
The entry / exit terminal provided on the exit side writes data such as the number of the security area that has entered / exited, the date / time of entry / exit, and records the entry / exit history.

The security level setting of the user card as described above is performed by the terminal of the host 1, and the entry / exit history recorded on the user card 3 is transferred to the host 1, so that the management can be performed.

On the other hand, the system card 2, which is an IC card, has three types: a gate card, an alarm card, and a data card. The gate card is for setting terminal conditions such as the security level of each of the entry / exit terminals 4a and 4b.
This terminal condition is determined by the host 1 for each entry / exit terminal 4a, 4b.
And written on the gate card. This gate card is mounted on an entry / exit terminal for which terminal conditions are to be set, and the terminal conditions are read from the gate card by operating the keyboard and stored in the entry / exit terminal. As a result, the security level is set for the entry / exit terminal.

In addition, each entry / exit terminal 4a, 4b records a history of entry / exit (user card number, entry / exit date and time based on the number, etc.). In the system card 2, the data card is used to collect the recorded entry / exit history from each entry / exit terminal, and transfer it to the host 1.

If the user card is lost or stolen, in order to prevent unauthorized use of this user card by a third party,
It is registered that the user card is an accident card in an entry / exit terminal that can use the user card. A user card registered as an accident card cannot be used at the entry / exit terminal. An alarm card as the system card 2 registers an accident card in the entry / exit terminal. When an accident occurs in the user card as described above, data on the fact is input at the terminal of the host 1, and is read out and written to the alarm card. Then, this is mounted on a predetermined entry / exit terminal, and a predetermined keyboard operation is performed, whereby an accident card is registered in the entry / exit terminal.

As described above, the IC card as the system card 2 functions as an information transmission medium between the host 1 and the entry / exit terminals 4a and 4b. For this reason, the system can be taken offline, wiring between the host 1 and each of the entry / exit terminals is not required, and the installation is simple, so that the number of entry / exit terminals can be easily increased or the installation location can be easily changed. become.

Next, the security level of the entry / exit terminal and the user card in this embodiment will be described.

The security level of the security area can be arbitrarily set in consideration of the relationship between the security areas, the degree of entry / exit conditions of the security area, and the like.
For the security areas that need to be related to each other, the level of the security area with the higher security is raised to provide a relationship between the security levels. This is done by grouping security areas related to each other, and the above-described level assignment is performed for each group. Therefore, each security area is related in a tree structure.

FIG. 2 shows a specific example of a tree structure showing each security area in association with each other.

In the figure, for example, it is assumed that the entrance of the room A, the entrance of the room B, the room C, and the warehouse are related to each other, and the areas related to each other are collected for each block. Blocks related to the entry / exit condition are linked to one branch, and blocks unrelated to the entry / exit condition are linked to different branches, so that the blocks are linked in a tree structure.

In the tree structure shown, it is branched into seven,
These branches are represented by codes 1, 2, 3,..., 7 in order from the left. Each branch is classified according to the degree of entrance and exit conditions, and these divisions are ranked from the top in order of rank 1,2,3, ...
…, 6. Accordingly, the block consisting of the room A entrance, the room B entrance, the room C, and the warehouse has a code of 5 and a rank of 4.

For each block, the number described above the name of each area indicates the number (gate terminal No.) of the entrance / exit terminal provided at the entrance of this area. For example, the gate terminal No. (number) of the entrance / exit of the hall A divided into the block of the code 1 and the rank 5 is 1. Gate terminals No. are sequentially assigned to the entry / exit terminals in each area.

In each block, numbers are assigned in the order of areas. This is a number surrounded by a circle below the area name, and is hereinafter referred to as a setting gate number. For example,
The entry / exit terminal of the hall A has a code 1 and a rank 5 block where the set gate No. is set.

As described above, each area is divided and the relevance between the areas is set. However, between blocks connected to the same branch (same code), the smaller the rank, the higher the security, and the entrance and exit of the area with the smaller rank This means that the security level of the terminal is high.

User card 3 which is the key to the entrance to the area (Fig. 1)
Also, the same level as the division shown in FIG. 2 is assigned. For example, when the user card 3 is used as a key for the entrance of the room A of the gate terminal No. 39, data of code 5, rank 4 is set in the user card 3. As a result, the user card 3 can be used as a key for the entrance of the room A, but can also be used as a key for the entrance of the room B, the room C, and the warehouse at the same level. , Rank 5 block, code 5 and rank 6 block can also be used as keys.

Although the above is a general function of the user card, the function as a key can be prohibited even in the same level area or the lower level area. Also,
In general, the user card 3 cannot be used as a key for a block area connected to another branch (code). However, according to the specification on the user card 3, even if it is a block area of another code, The designated area can function as a key. These will be described later in detail.

In FIG. 2, only the IC card as the master key is in rank 1 so that the doors of all areas can be unlocked. In the rank 2, the submaster (S key, L key, M
Key, N key, A key, Q key).

 Next, each card will be described.

FIG. 3 shows the format of the user card 3 in FIG.

In the user card 3, an area in which data serving as a heading of the card is stored (third (a storage area for basic key information (FIG. 3 (b)), a storage area for key information (FIG. 3 (c))) , An option key information storage area (FIG. 3D) and a history information storage area (FIG. 3E).

First, the item N is stored in the heading storage area (FIG. 3A).
In o.1, the business ID of the owner of the user card 3 is set to item No.
2 stores the expiration date of the business, and item No. 3 stores the use start date of the business. Item No. 2 is also the expiration date of this user card 3. Item No. 4 is an entry / exit terminal at the entrance / exit of an area where unlocking is prohibited in a block lower in rank than the level set in this user card 3 (set in the item No. 5 rank and code column). , And a maximum of six fields can be specified.

In item No. 5, first, a card status for identifying a system card or a user card, and an issue number of the card are stored. The level of this user card in FIG. 2 is set by the rank and the code. In the history overwrite, the number of data stored in the storage area of the history information shown in FIG. 3 (e) is a specified number (here, 40).
Is exceeded, the old history information is erased by one, new history information is written, and writing of new history information is prohibited. The number of key information items stored in the key information storage area shown in FIG. 3C and the number of option key information items stored in the option key information storage area shown in FIG. 3D are also stored. When a new user card is issued due to theft or the like, the card issue number of the old user card is stored as the accident card number.

In the case of a newly issued user card, this accident card No.
Is registered in the entry / exit terminal, and thereafter, even if the old user card is found in the entry / exit terminal, it cannot be used.

The basic key information storage area shown in FIG.
With the same code as the code set in item No. 5 in FIG. 9A, information on the entry / exit terminal in an area of lower rank than the set rank is stored. The stored information includes the entry / exit terminal number (gate terminal N
o), the entry / exit classification information indicating whether this entry / exit terminal is on the entrance side or exit side of the area, and the unlock condition flag are information on the expiration date, use start date, and time zone. . These are provided for each stored gate terminal No.
The unlocking condition flag indicates whether a password is required for unlocking,
A flag for determining whether to set an expiration date, a use start date, and whether to set a time zone.
Bit by bit is used. These settings are independent of each other. For example, when only the password is required by the unlock condition flag, the password can be unlocked by using the password at any time. Further, assuming that the password and the time zone are determined by the unlock condition flag, unlocking is possible by using the password within the set time zone. Accordingly, the use of the user card can be restricted by the password, the expiration date, and the time zone by the unlock condition flag. The key use start date indicates the date when the user card was first attached to the terminal.

Among the lower rank entry / exit terminals, the entry / exit terminals whose use is particularly prohibited are shown in FIG. 3 (a).
Specified by No.4.

The key information storage area shown in FIG. 3 (c) contains information on the entry / exit terminal which can be unlocked by a block of the same level as the code and rank set in item No. 5 in FIG. 3 (a). Are stored in the same format as in FIG. 3 (b). The entry / exit terminal of the same code and the same rank that is not stored in this area cannot be unlocked with this user card.

The option key information storage area shown in FIG. 3 (d) contains the same code as the code set in item No. 5 of FIG. 3 (a) except for the entry / exit terminals below the rank set.
For entry / exit terminals that need to be unlocked at the same time,
Information on the entry / exit terminal is stored as an option key. The format of this storage area is the same as that shown in FIG. 3 (b), but the amount of information stored therein is limited, and here, a maximum of 10 areas is possible.

The number of entry / exit terminals stored in the key information storage area and the option key information storage area is stored as the number of key information and the number of option key information in item No. 5 of FIG. 3A, respectively.

In the history information storage area shown in FIG. 3 (e), information indicating the entry / exit terminal that has been unlocked so far and its date and time are stored as history information. The information to be stored includes the gate terminal No. of the entry / exit terminal used for unlocking, whether the installation location of this entry / exit terminal is on the entrance side or exit side of the area, date of use, hour / minute / second Information. There is also a limit on the amount of information stored in this storage area, and here, it is set to 40 times of entering and exiting the area. Each time history information is recorded in this storage area,
The history information pointer of item No. 5 in FIG. 3A is designated as a history information recording counter.

Information writing in the area shown in FIGS. 3A to 3D of this user card is performed by the host 1 (FIG. 1) (however, the history information of item No. 5 in FIG. 3A). Pointer), information writing in the area shown in FIG. 3 (e), and writing of the history information pointer of item No. 5 in FIG. 3 (a) are performed by attaching this user card to the entry / exit terminal, This is done when unlocking is performed.

Also, this user card is the entry / exit terminal written in the area of FIG. 3 (b) (however, the item of FIG. 3 (a)
(Excluding the entry / exit terminal presented in No. 4) and the entry / exit terminal written in the areas of FIGS. 3 (c) and 3 (d) can be used for unlocking. . Thus, for example, when the code 5 and rank 4 in FIG. 2 are set in the user card, the information in the area of FIG. Can be unlocked using the entry / exit terminal of item 3, but item No. 4 in FIG.
In some cases, if there is information in the lower level, unlocking of the lower level area is not possible. Also, even in the area of code 5, rank 4, if there is no instruction in the area of FIG. 3 (c), unlocking in that area is not possible. Further, if the option key information is present in the area shown in FIG. 3D, unlocking is possible even in an area having a different code, for example, an entry / exit terminal in the hall A of the gate terminal No. 1.

FIG. 4 shows the format of a gate card as the first system card 2.

This gate card is connected to the host 1 as described above.
The information of the entry / exit conditions of each entry / exit terminal set in step (1) is transmitted to each entry / exit terminal. In this gate card, a heading area and the like are also provided. Here, an area for storing information on entry / exit conditions will be described.

FIG. 4 shows this area, in which information for 50 entry / exit terminals can be stored. The information to be stored includes the gate terminal number of the entry / exit terminal, entry / exit discrimination information indicating whether the entry / exit terminal is provided on the entry side or exit side of the area, Setting gate No. in the block shown in FIG. 2 of the terminal
(,,...), The code, rank, history overwrite permission flag, rank code management table in FIG. 2 of this entry / exit terminal, and a check indicating whether or not the above information has been registered in the entry / exit terminal. Code.

Each entry / exit terminal has a fixed storage capacity for history information, which is assumed to be, for example, 500. The history overwriting permission flag is a flag for instructing what to do when the stored history information reaches this 500 cases. For example, when this flag is 1, when the number of stored history information reaches 500, new storage information cannot be stored, and at the same time, the entry / exit terminal cannot be used. When this flag is 0, the stored history information is
The new information can be stored (overwritten) while erasing the old information even when the number of records reaches 500, and a message is issued together with this.

The rank code management table is a table for managing the codes and ranks of the entry / exit terminals of lower ranks with respect to the set rank.

When the gate card storing the information is inserted into the entry / exit terminal and the gate terminal No. of the entry / exit terminal is input, the information for this gate terminal No. stored in FIG. 4 is read out. Registered in the entry / exit terminal. In the gate card, a check code (FIG. 4) indicates that the information has been registered for the gate terminal No.

When the check code indicates that the check code has been registered, the information of the gate terminal No. for the check code cannot be read out, whereby the same gate terminal No. is set for a plurality of entry / exit terminals. Can be prevented. In addition, the check code can be used to check whether or not there is any omission of information registration.

FIG. 5 shows a format of a data card as the system card 2 in FIG.

As described above, this card is a card for reading history information stored in the entry / exit terminal and sending it to the host.

This data card has a heading area shown in FIG. 5 (a) and a storage area for history information shown in FIG. 5 (b).

When the data card is inserted into the entry / exit terminal, the history information stored therein is sequentially read, and FIG. 5 (b)
Are sequentially written to the storage area. At this time, in the heading area of FIG. 5 (a), the gate terminal No. of the entry / exit terminal from which this history information is read is written in item No. 3, and when the information reading of this entry / exit terminal is completed, The number of the read history information is also written.

There are restrictions on the number of history information that can be stored on this data card and the number of entry / exit terminals, respectively.
And the latter are three. Therefore, when the stored history information reaches 380, the history information can no longer be written, and even when the stored history information does not reach 380, the history information cannot be written to the three entry / exit terminals. When reading the history information, the history information can no longer be read.

To read the history information further, use another data card, or attach the data card to the host and transfer the history information to the host, clear the contents of this data card and reuse it. Good.

FIG. 6 shows the format of the alarm card as the system card 2 in FIG.

As described above, this card is a card for setting this information in the entry / exit terminal when the user card is involved in an accident such as powdering or theft. An area, a storage area for the accident card shown in FIG. 6 (b), and a registration flag area shown in FIG. 6 (c).

The accident card storage area (FIG. 6 (b)) stores, for each accident card, the accident card No. and the number of entrances and exits (the number of registered gates) in an area where this card can be used for unlocking. Here, it is assumed that information on up to six accident cards can be stored.

In the area shown in FIG. 6 (c), a registration flag is set for each entry / exit terminal, and such an area is shown in FIG. 6 (b).
Are stored for several accident cards (that is, six). In each area, 999 registration flags from 001 to 999 can be set, and each registration flag has a one-to-one correspondence with the gate terminal No of each entry / exit terminal.

Now, looking at the accident card registered at the beginning of FIG. 6 (b), there are some entry / exit terminals that can be used for unlocking this accident card, so that this accident card cannot be used. , These entry / exit terminals are set. For this purpose, the registration flags corresponding to these entry / exit terminals are set to 1 in the area shown in FIG. 6 (c). The registration flags corresponding to the entry / exit terminals other than these entry / exit terminals are 0.
It is. After setting the registration flag for each accident card in this way, when this alarm card is attached to the entry / exit terminal that can use the accident card, the entry / exit terminal is determined based on the registration flag, and the The accident card is registered. When the registration is completed, the registration flag corresponding to the entry / exit terminal becomes 2, and at the same time, the content of the counter in FIG. 6B is incremented by 1.

Similarly, when an accident card is registered in a necessary entry / exit terminal, the registration flag changes from 1 to 2 and the content of the counter is incremented. When the content of this counter matches the number of registered gates, The accident card is registered in all necessary entry / exit terminals. Accordingly, it is possible to determine whether or not the registration is completed by comparing the contents of the counter with the number of registered gates, and it is possible to confirm the entry / exit terminal whose registration flag in FIG. 6 (c) is not registered.

In addition, even the user card registered as an accident card,
Can be made reusable. Again, in this case,
The information of this user card is similarly stored in the area shown in FIG. 6B, and the registration flag in FIG. 6C corresponding to the entry / exit terminal used by this user card is set to 3. After these pieces of information are registered in the entry / exit terminal, the corresponding registration flag becomes 2, indicating that the information has been registered.

In addition, a user card that specifies a time limit and is not used after this period can be processed as a similar accident card, and when this is registered in the entry / exit terminal,
When this period has elapsed, the user card cannot be used as an accident card in the entry / exit terminal.

The format of the user card and the system card has been described above. Next, the operation of this embodiment will be described.

(Start-up process) This process is a process for setting entry / exit conditions for each entry / exit terminal, and will be described below with reference to FIG.

First, as described with reference to FIG. 4, when a gate card in which information on entry / exit conditions is written for each entry / exit terminal is attached to the entry / exit terminal (step 700), the system stored in the gate card is stored. A password check is performed (step 701). This password is composed of, for example, a password for management by the manufacturer and a password for management by the party who purchases and uses the password. If this password is not correct (step 70
2) The gate card is determined to be incorrect, and an error message is output (step 711) and the card is ejected (step 712).

If the password is correct, a determination is made as to whether this card is an accident, whether the card has expired or not, and whether or not the card is usable (step 703). If not, an error message is displayed (step 704). Output and eject the card. If the card is usable, it is determined whether the card is a gate card or another card (step 705). If the card is not a gate card, an error message is output and ejected. The entry / exit terminal that has not been subjected to the rising process can only accept gate cards.

If it is determined that the gate card is correct, a message for inputting the gate terminal number is output (step
706), the gate terminal number to be set for the entry / exit terminal is input by keyboard operation (step 707), and whether the gate terminal number is correct or not is determined (step 708). If the gate terminal number has already been set in another entry / exit terminal (this can be determined by the check code as described above with reference to FIG. 4), the process returns to step 706 again and corrects. Prompt for gate terminal No.

When the correct gate terminal number is input, the corresponding entry / exit condition information is read from the gate card (FIG. 4) (step 709) and written into the memory of the entry / exit terminal (step 710). This completes the setting of the entry / exit conditions of the entry / exit terminal (startup processing), and the gate card is ejected (step 712).

The start-up process described above is performed for each entry / exit terminal.
If there are more than 50 entry / exit terminals, start processing of multiple gate cards or 50 entry / exit terminals, and then enter / exit conditions for other entry / exit terminals from the host. May be read, and the above processing may be performed again for another entry / exit terminal.

(Card Processing) This processing is for discriminating the type of card and performing processing in accordance therewith, and is processing for actual use after the start-up processing shown in FIG. Hereinafter, this processing is referred to as the eighth.
This will be described with reference to the drawings.

In this figure, steps 801 to 806 from the insertion of the card into the entry / exit terminal to the check of the accident card are the same as the steps 700 to 704 in FIG. 7 for the gate card.

If the inserted card is not an accident card (step
807), the type of the card is determined (step 808). If this card is a user card, proceed to step 809,
In the case of a gate card, the process proceeds to step 810; in the case of an alarm card, the process proceeds to step 811; in the case of a data card, the process proceeds to step 812. After performing predetermined processes, the card is ejected (step 810). 816).

If the inserted card is an accident card, an alarm buzzer or an error message is output (step
813) The card is destroyed (Step 814)
Is discharged.

(Details of step 809 in FIG. 8) If it is determined in step 808 in FIG. 8 that the user card is a user card, the process proceeds to step 809 to perform user card processing. Hereinafter, this processing will be described with reference to FIG. I do.

First, it is determined whether or not the history information stored in the entry / exit terminal has reached the maximum number (500 in the above example) (step 900). If not, the process proceeds to step 902, and if not, the process proceeds to step 902. For example, it is determined whether overwriting is possible or not based on the history overwriting permission flag shown in FIG. 4 (step 901). If overwriting is possible, the process proceeds to step 902. If overwriting is prohibited, a message is output (step (926), and the card is ejected (step 816 in FIG. 8).

Similarly, for the user card, the number of pieces of history information and whether overwriting is possible or not are determined (steps 902 and 90).
3).

Next, rank and code information are read from the heading area (FIG. 3A) of the user card (step 904).
Next, these ranks, codes and gate cards (Fig. 4)
(Step 905), the entry / exit terminal has the same code as the user card and has a lower rank (this is called "card control"). ), The same code and the same rank as the user card (this is the code "card equivalent",
Or something other than these (this is "out of card control"
Is determined (step 906).

In the case of "card dominance", the entry / exit terminal of the item No. 4 in the heading area (FIG. 3 (a)) of the user card is identified as a prohibited lower rank (step 907). In the basic key information area (FIG. 3 (b)), the unlock condition flag is processed for the entry / exit terminals other than the entry / exit terminal of the prohibited lower rank (step 908).

In the case of "equivalent to a card", the key information area (FIG. 3 (c)) of the user card is searched (step 909), and if no information is stored in this area (step 910), step 912 is executed. Proceed to. When the information of other entry / exit terminals of the same code and rank is stored in this key information area, the unlock condition flag for this entry / exit terminal is processed (step 911).

In addition, if you are out of card control, or
If the information cannot be found in step (1), the presence or absence of the option key information area (FIG. 3 (d)) of the user card is determined (step 912). When the option key information area becomes available, a message is output (step 926) and the card is ejected (step 816 in FIG. 8). Even if there is an option key information area, this area is searched (step 913), and even when no information is obtained (step 914), a message is output and the card is ejected. If the information of the entry / exit terminal is found from the option key information area, the process of the unlock condition flag for this entry / exit terminal is performed (step
915).

At step 908, 911 or 915, the unlocking condition flag is processed.
If the expiration date, time zone, etc. are set as described in (d) (step 916), the basic key information area (FIG. 3 (b)) and the key information area (FIG. 3 (c)) Alternatively, it is determined whether or not this user card is used within the expiration date and time zone set in the option key information area (FIG. 3 (d)) (steps 917 to 920). If so, proceed to the next step 921. In step 916, the expiration date is set by the unlock condition flag.
If none of the time zones has been set, the process proceeds directly to step 921.

Step 921 determines whether or not the unlock condition flag requires the use of a password. If this is not requested, the door is unlocked immediately (step 924), but if a password is required, the password is entered by operating the keyboard of the entry / exit terminal (step 922). This is collated with the password stored in the user card in the user card (step
923), when these match, the entry / exit terminal unlocks the doorway (step 924). If they do not match, a message is output and the card is ejected.

Thereafter, the entry / exit terminal writes the history information that the user card has been used to the memory,
In the user card, history information indicating that unlocking has been performed by the entry / exit terminal is written in the history information area (FIG. 3E) (step 925).

Note that the amount of history information stored in the user card exceeds a prescribed number (here, 40) (step 902), and a history overwrite flag that disables overwriting with this user card. When (FIG. 3 (a)) is set (step 903),
The user card is ejected from the entry / exit terminal (step 926), and the history information of the ejected user card is transferred to the host (FIG. 1) and managed there, as described above. However, the user card whose history information has been transferred to the host 1 in this way can be used again at the entry / exit terminal. In this way, only the user card or the host 1 that requires history information can be stored, and the IC card can be used repeatedly.

(Details of Step 810 in FIG. 8) This step 810 is for changing the entry / exit conditions of the entry / exit terminal with a gate card, and will be described below with reference to FIG.

The format of the gate card in this case is the same as in FIG.

A password is stored in the gate card, and when the password is input to the terminal by keyboard operation (step 1000), this is compared with the password read from the gate card (step 1001). If they do not match, a message is output (step 1005) and the gate card is ejected (step 816 in FIG. 8).

When the passwords match, the gate terminal No. set in the entry / exit terminal is searched in the area shown in FIG. 4 of the gate card (step 1002), and when there is this gate terminal No. (step 1003) Then, the entry / exit condition information corresponding to the entry / exit condition is read out and rewritten in the memory of the entry / exit terminal (step 1004). As a result, new entry / exit conditions are set in the entry / exit terminal. If the gate terminal No cannot be found by the search, a message is output (step 1005) and the card is ejected (step 816 in FIG. 8).

(Details of Step 811 in FIG. 8) This step 811 is a process for registering an accident card in the entry / exit terminal using an alarm card, which will be described below with reference to FIG.

The password is also stored on the alarm card.
The collation of the password is performed in the same manner as in the figure (step 110).
0,1101). If the passwords match, the entry / exit terminal reads the number of registered accident cards from the heading area of the alarm card (FIG. 6 (a)) (step 1102), and determines whether or not this number is 0 (step 1103). ). If it is 0, a message is output (step 1112) and the card is ejected (step 816 in FIG. 8).

If the number of registered accident cards is not 0, the accident card No. is read from the area shown in FIG. 6B of the alarm card (step 1104), and FIG.
The registration flag for the entry / exit terminal to which this alarm card is attached is read from the area (step 110).
5), it is determined whether the registration flag is 1 or 3 or other (step 1106). When the registration flag is 1, the accident card number is registered in the entry / exit terminal (step 110).
7) When the registration flag is 3, the registration of the user card as an accident card at the entry / exit terminal is canceled (step 1108), and the user card is registered in the area shown in FIG. Is set to 2. If the registration flag is other than 1 or 3,
Go to 0.

Thereafter, the count value N is incremented by 1 (step 1110). If this value N does not match the number of accident card registrations (step 1111), the next accident card No. is read out and the same processing is performed again. When all the accident cards have been registered, the cards are ejected.

(Details of Step 812 in FIG. 8) This step 812 is for performing a process of reading the history information of the entry / exit terminal onto a data card.
This will be described with reference to FIG.

The data card also has a personal identification number, and firstly, the personal identification number is collated as in each of the above-mentioned cards (steps 1200 and 1201). Next, the number of history information and the number of entry / exit terminals stored therein are read out from the heading area (FIG. 5 (a)) of the data card, and it is determined whether or not this data card can be used (step). 1201). If the card cannot be used, a message is issued (step 1209) and the card is ejected (step 816 in FIG. 8).

If the data card is usable, the history information stored in the entry / exit terminal is read (step 120).
3) Write to the data card (step 1204). And the total number of history information written on the data card is 380
(Step 1205), whether all the history information of this entry / exit terminal has been written to the data card (Step 12)
06), and when any of these is satisfied, the number of entry / exit terminals is incremented (step 12).
07), and this and the number of history information in the data card are written in the area shown in FIG. 5 (a) of the data card. At the same time, the gate terminal No. of this entry / exit terminal and the number of history information collected from now on are also written on this data card (step
1208).

〔The invention's effect〕

As described above, according to the present invention, the history information is automatically written into the IC card, and the individual management can be performed accurately without user's trouble, and the required history information is relatively new. In this case, by setting overwrite permission to the IC card, the IC card can be used effectively except for old history information that is not needed. When all are required, by setting the overwrite prohibition, all the history information can be saved, and according to the situation, and for each IC card, how far can the history information to be saved on the IC card be? Can be easily determined.

Further, according to the present invention, even if the overwriting-prohibited user card becomes unusable due to the history information stored therein exceeding the prescribed information amount, the stored history information is transferred to the host terminal. Since the user card can be used again by transferring the user guard, the user guard can be repeatedly used without losing necessary history information.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an embodiment of an IC card entry / exit management system according to the present invention, FIG. 2 is a diagram showing a specific example of a tree structure for dividing an area, and FIG. 3 is a user card in FIG. FIG. 4 shows a specific example of a gate card format as a system card in FIG. 1, and FIG. 5 shows a specific example of a data card format as a system card in FIG. FIG. 6 is a diagram showing a specific example of a format of an alarm card as a system card in FIG. 1, and FIG. 7 is an entry / exit condition setting operation of an entry / exit terminal in FIG. FIG. 8 is a flowchart showing the use operation of the entry / exit terminal in FIG. 1, and FIG. 9 is a flowchart showing the details of the user card processing step in FIG. 10 is a flowchart showing details of the gate card processing step in FIG. 8, FIG. 11 is a flowchart showing details of the alarm card processing step in FIG. 8, and FIG. 12 is a data card in FIG. 5 is a flowchart showing details of processing steps. 1 Host 2 System card 3 User card 4a, 4b Entry / exit terminal 5 Electric lock controller 6 Electric lock 7 Auto door controller
8 ... Auto door.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) E05B 49/00 G07C 9/00

Claims (3)

(57) [Claims] 1. A system in which a terminal connected to an unlocking means of an entrance is installed at each entrance of each area, and the entrance is unlocked by mounting an IC card on the terminal. The IC card stores, as history information, information relating to the terminal whose doorway has been unlocked thereby, and permits or prohibits overwriting when the stored history information reaches a prescribed amount of information. An IC card entry / exit management system characterized in that the user can select and set whether or not. 2. The IC card entry / exit management system according to claim 1, wherein the history information stored in the IC card is read by a host terminal and stored. 3. The IC card according to claim 2, wherein when the overwriting is prohibited, the IC card is disabled because the history information is stored in excess of the specified information amount. An IC card entry / exit management system, which can be used by writing the history information exceeding the amount of information to the host terminal.