JPH0831145B2 - Access control system - Google Patents

Description

The present invention relates to an entry / exit management system that manages entry and exit based on ID discrimination.

[Conventional technology]

Conventionally, this type of entry / exit management system allows the same person to enter the room regardless of whether the person is in the room (for example, blocking entry of a person who picks up an ID card or hands it).
Some have an anti-passback check function to prohibit.

[Problems to be Solved by the Invention]

However, when a room is managed by the entrance / exit management system with such an anti-passback check function, if a person exits without checking the ID when exiting, that person will stay in that room forever. That is why he cannot enter the room again. That is, when a normal person leads a card into a room and exits without reading the card with another person when exiting, that person will remain in that room, so that person Had an inconvenience that he could not enter because of an anti-passback even if he tried to re-enter.

The present invention has been made in order to solve the problems of the conventional example as described above, and provides an entry / exit management system capable of operating the antipassback check functionally and practically.

[Means for solving the problem]

The room entrance / exit management system according to the present invention sets the in-room flag when entering the room based on the ID discrimination and resets the in-room flag when exiting the room based on the ID discrimination, so that the same ID as the person who has the in-room flag set In an entrance / exit management system with an anti-passback check function that prohibits entry based on discrimination, the time when the person in the room is counted from the time when the in-room flag is set and stays for a predetermined time If there is, the controller for resetting the in-room flag of the entering company is provided.

[Action]

In the entry / exit management system according to the present invention, the flag for the anti-passback check is reset when a person stays in a room for a predetermined time or longer.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.
FIGS. 1 (a) to 1 (d) show a block diagram of an entrance / exit management system in this embodiment, in which (1A) and (1B) are shown.
Is a card reader as an ID discrimination device provided at the entrance side and the exit side of the room. When the ID card verification result is OK, the electric lock (2a) of the door (2) is unlocked as shown in FIG. It can be locked in and out of the room. Further, as shown in FIG. 2C, the reader head portion (1a) and the ID discrimination OK or the front surface portions of the card readers (1A) and (1B) are OK.
A display unit (1b) is provided for lighting up each NG, and further, these card readers (1A) and (1B) store a CPU (3a), programs, etc. as shown in FIG. ROM (3b), RAM that stores collation data, etc.
(3c), the clock (3d) and the interface (3f) by the controller (3), the reader head (1a)
The read data of the ID card is collated, and the display unit (1b) is controlled based on the collation result, the state of the electric lock (2a) and the output of the door open detection sensor (4). The CPU (3a) resets the state when it detects that a certain person stays in the room for an inconceivable long time, and loosens the anti-passback check function of a normal person.

Next, the specific operation of the above configuration will be described based on the flowcharts of FIGS. 2 (a) and 2 (b).
2 (a) and 2 (b) show the ID discrimination operation of the CPU (3a) based on the read data of the ID card by the card readers (1A) and (1B). At first, when the card is read by the entrance side card reader (1A) at step S1, the verification result is OK at step S2, and the ID determination conditions such as the expiration date are verified. It is determined whether or not the person's in-room flag for the back check is "0", and if it is "0", the OK lamp of the display unit (1b) is temporarily turned on (step S4).

When the ID determination condition is not checked in step S2, the NG lamp of the display unit (1b) is temporarily turned on (step S5). Also,
When the person's in-room flag is not “0” in the anti-passback check in step S3, it is determined in step S6 whether or not the person is in the room for a predetermined time (24 hours) or more, for example. Set the person's room flag to "0"
(Step S7). In this case, it is practically unthinkable to stay in the same room for more than 24 hours, and when leaving the room, it is considered that he / she left the room without leading his / her own card even if he / she left the room, and the person for the anti-passback check was checked. It resets the in-room flag to "0". On the other hand,
If NO in step S6 above, display unit (1b)
The NG lamp is temporarily turned on (step S5).

After step S3 or S7, in step S8, the electric lock (2a) is temporarily unlocked, and as a result, the knob can be turned into the room (step S9), and the door (2) can be opened. The person's room flag is set to "1" based on the detection signal from the door open detection sensor (4), and the time in that person's room is started to be counted from that time on the basis of the clock (3d) ( Step 10).

On the other hand, at the time of leaving the room shown in FIG. 2 (b), first, in steps S11 and S12, as in steps S1 and S2, the data read from the ID card by the exit side card reader (1B) is checked, and when OK, the display unit is displayed. The OK light of (1b) is temporarily turned on (step S13), and the electric lock (2a) is temporarily unlocked (step S15). When it is determined NO in step S12, the NG lamp of the display unit (1b) is temporarily turned on (step S14).

Since the electric lock is unlocked, it is possible to leave the room by turning the knob (step S16), and by opening the door, based on the detection signal from the door open detection sensor (4), that person's The in-room flag is set to "0" and the time in the person's room is reset (step S1).
7).

Therefore, according to the above-described embodiment, the anti-passback check function is improved so that it can be considered that a person has already left the room when the person is in the room for a predetermined time or longer.
Even if you leave the room without checking the ID, you can enter the room again, and you can achieve a functional and realistic anti-passback check.

In the above embodiment, the flag for anti-passback check can be reset manually or automatically, and may be reset when the ID card is read, and there is no other person. It may be reset at times.

Further, when a person is present in a room for a predetermined time or more, this may be warned, and the flag can be reset based on this.

 The present invention can be implemented according to the following modes.

1) The anti-passback can be detected in the same way even if the card reader is only on the entrance side, and it is free when exiting, but the fact that it exits can be read on the entrance side (similar idea to time and attendance time cards).

2) ID discrimination devices other than card readers (numeric keys, fingerprints,
The same can be done by using voiceprints alone).

3) The door can be any door such as an automatic door and a revolving door.

4) The room flag is set to "0" when a person in the room reads the card for a predetermined time or longer, but the room flag may be automatically set to "0" when the time exceeds the predetermined time.

5) An alarm may be issued after a lapse of a predetermined time or more, and an administrator who saw the alarm may set the person's room flag to "0". That is, you may intervene the judgment of the person. At this time, you may use an intercom to confirm that the person is not in the room.

6) This invention is also effective when managing whereabouts.

7) When no one else is in the room, the room flag of that person may be set to "0".

〔The invention's effect〕

As described above, according to the present invention, when a person is in the room for a predetermined time or more, the anti-passback check function is improved so that it can be considered that the person has already left the room. Even if you leave the room as it is, you can enter the room again, and you can achieve a functional and realistic anti-passback check.

[Brief description of drawings]

1 (a) to 1 (d) are configuration diagrams showing an embodiment of the present invention, and FIGS. 2 (a) and 2 (b) are operation flowcharts thereof. (1A) and (1B) are card readers, (1a) is a reader head, (1b) is a display unit, (2) is a door, (2a) is an electric lock,
(3) is a controller and (3a) is a CPU. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. An entrance based on the same ID discrimination as a person who has the interior flag set such that an in-room flag is set when entering the room based on the ID discrimination and the in-room flag is reset when leaving the room based on the ID discrimination. In an entrance / exit management system with an anti-passback check function that is prohibited, when the room flag is set, the time when the person in the room is counted and if the person stays in the room for a predetermined time An entrance / exit management system comprising a controller for resetting a person's room flag.