JPH08105253A - Entry and exit control system - Google Patents

Abstract

PURPOSE: To transmit the invading of a suspicious person to an administrator even if the suspicious person invades while a center equipment to control the entry and exit from a room is out of order. CONSTITUTION: A terminal main body 3a starts measurement of time when it detects an unlocking signal from an electric lock 4 when a unlocking drive signal is not output to the electric lock 4. When a door open signal from the electric lock 4 is detected before the measured time reaches a specified limit, a door invading signal is output to a display part. The display part 5 displays the entry of a suspicious person based on the input of the door invading signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a room entry / exit management system for locking and unlocking a door with an ID card.

[0002]

2. Description of the Related Art This entry / exit management system is intended to regulate entry into a specific room.
It is composed of a gate terminal connected to the center device via a data transmission path, an electric lock connected to the gate terminal, and the like. The center device performs registration of an ID card (identification card), registration of an unlocking schedule of the gate terminal, recording and display of persons entering and leaving the room, and the gate terminal is located near the door where the electric lock is attached. A card reader provided, which reads the ID code of the ID card, and the ID code read by the card reader and the I registered in advance.
It is equipped with a terminal body that matches the D code, and unlocks the electric lock for persons who are allowed to enter the room, and when the electric lock is unlocked even though the electric lock is not unlocked, Alternatively, when the door is opened, the center device is informed that the suspicious person has entered the room.

[0003]

In the conventional room entrance / exit management system as described above, when the center device fails for some reason while the gate terminal notifies the suspicious person Could not inform the administrator of that fact, and there was a risk of a security problem.

[0004]

A room entrance / exit management system according to the present invention has a center device and a card reader, and an ID code of an ID card read by the card reader is registered in advance by the center device. A gate terminal unit that outputs an unlocking drive signal when it is the same as the ID code, and unlocks the door lock when an unlocking drive signal is input, outputs an unlocking signal to the gate terminal unit, and In an entry / exit management system having an electric lock that outputs a door opening signal when it is opened, start time measurement when the unlock signal is detected when the unlock drive signal is not output, and the measurement time When a door open signal is detected before the predetermined time is reached, a door intrusion detection unit that outputs a door intrusion signal and an intrusion of a suspicious person based on the input of the door intrusion signal It is obtained and a display unit for displaying.

[0005]

In the present invention, the door intrusion detection section starts measuring time when it detects the unlock signal from the electric lock when the gate terminal section does not output the unlock drive signal to the electric lock. Then, when a door opening signal from the electric lock is detected before the measured time reaches a predetermined time, a door intrusion signal is output to the display unit. The display unit displays the intrusion of the suspicious individual based on the input of the door intrusion signal and notifies the administrator.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention,
2 and 3 are flowcharts for explaining the operation when the electric lock is normally unlocked and when it is unlocked by a suspicious person. In FIG. 2, reference numeral 1 is a center device for registering an ID card. The data is transmitted to the gate terminal 3 which will be described later via the data transmission path 2 and records and displays the persons entering and leaving the room.

A gate terminal 3 is provided on a wall near the door to which the electric lock 4 is attached, and has a terminal body 3a and a card reader 3b. The terminal body 3a includes a microcomputer (hereinafter referred to as "microcomputer"),
The ID code of the person entering or leaving the room transmitted from the center device 1 is stored in advance, and the two codes are collated when the ID code of the ID card is read by the card reader 3b. Only when the two codes match, the unlocking drive signal is output to the solenoid 4a of the electric lock 4 to unlock the door. Locking / unlocking of the electric lock 4 and opening / closing of the door are judged based on input of signals (unlocking / locking signal, door opening / door closing signal) from the electric lock 4.

Further, the terminal body 3a has a function of the door intrusion detection portion of the present invention, and starts measuring time when an unlock signal is input when the unlock drive signal is not output, When the door open signal is input before the measured time reaches a predetermined time, for example, 1 second, it is determined that a suspicious person has entered the room and a message to that effect is output to the display device 5 described later. Also, a predetermined time (1 second)
When the door open signal is input after the elapse, it is determined that the door is opened by operating the knob from the room. These functions are programmed and stored in the ROM of the microcomputer together with messages.

An electric lock 4 for the door is a solenoid 4a for unlocking and locking, and a micro that is turned on (unlocking signal) when the door is unlocked and turned off (locking signal) when the door is locked. A switch 4b and a magnet switch 4c that is turned off (door open signal), for example, when the door is opened, and turned on (door close signal) when the door is closed.
It consists of Reference numeral 5 denotes a display device provided on the center device 1 side, for example, which is connected to the terminal main body 3a via the message dedicated transmission line 6 and displays the message output from the terminal main body 3a on the CRT. Instead of the display device 5, a voice synthesizing device for notifying the intrusion of a suspicious person by voice may be used.

The operation of the room entrance / exit management system configured as described above will be described with reference to the flowcharts of FIGS. The terminal body 3a first determines whether or not the electric lock 4 is unlocked from locked (S1). Electric lock 4
If is unlocked, the process proceeds to step 15 to start counting time, but if it is not unlocked, it is determined in the next step whether or not the ID code is input through the card reader 3b (S2). . When the ID code is input, it is compared with the ID code stored in advance (S3), but when it is determined that the ID code is not input, the process returns to step 1 and the operation is repeated. When the ID code is input through the card reader 3b without the electric lock 4 being unlocked, the ID code is collated to determine whether they match (S1 to S4). When they do not match, the process returns to step 1. However, when it is confirmed that they match, the solenoid 4a is driven to unlock the electric lock 4, and it is determined whether or not the electric lock 4 is actually unlocked ( S5
S6). When the micro switch 4b of the electric lock 4 is turned on, it is determined that the lock is unlocked and the process proceeds to step 7,
If it is not unlocked, it is determined that the electric lock 4 side is out of order, and a failure signal is output to the center device 1 via the data transmission path 2 (S19), and this operation is ended.

On the other hand, if step 7 is selected in step 6, time counting is started (S7), and then it is determined whether the door is opened (S8).
This determination is made based on whether or not the magnet switch 4c that detects the opening / closing of the door is turned off.
If is not turned off, the count time is 1
It is determined whether 5 seconds have been reached (S9). Initially, that time has not been reached, so the process returns to step 8 to determine whether the door has been opened. If the door is opened at this point, the count time is cleared and time counting is started again (S11). If the door is not opened even after 15 seconds, the electric lock 4 is locked ( S10), and returns to step 1. When the time counting is started in step 11, it is determined whether the door is closed and whether the electric lock 4 is locked (S12). If the door is not closed and locked, it is determined whether the count time has reached 15 seconds (S13). If the door has not been closed or locked even after the count time of 15 seconds has elapsed, it is determined that the door is still open and an alarm signal is output to the center device 1 (S14), and the door is closed within 15 seconds. When the electric lock 4 is locked and the electric lock 4 is locked, the process returns to step 1 to check whether or not the electric lock 4 is unlocked as described above.
It is sequentially determined whether the D code is input (S
1, S2).

When it is confirmed in step 1 that the electric lock 4 has been unlocked by turning on the micro switch 4b, the time counting is first started (S15), and then it is determined whether or not the door is opened (S15). S16). If the door is not opened even after 1 second has elapsed, it is determined that the electric lock 4 has been unlocked by operating the knob from inside the room, and the process proceeds to step 8 and the same operation as described above is started (S8). ~ S14). Also, when the door is opened when the time counting is started, or when the door is opened without the count time reaching 1 second, for example, it is determined that the door has been pry open by a suspicious person, A message indicating that has entered is output to the display device 5 through the transmission line 6 dedicated to the message and displayed on the CRT (S18), and this operation is ended.

According to the present embodiment, when the electric lock 4 is unlocked without inputting the ID code and the door is opened within 1 second after unlocking, the fact that a suspicious person has entered is indicated. Since the information is displayed on the display device 5, even when the suspicious person is intruded, even if the center device 1 is out of order, the administrator can be notified of that fact, and the crime prevention measures are improved. Further, when a voice synthesizer is used in place of the display device 5, it is possible to notify by voice that a suspicious person has entered, so that it is possible to promptly respond to a suspicious person.

[0014]

As described above, according to the present invention, since the entrance / exit management system is provided with the display section for displaying the fact that a suspicious person has entered, a suspicious person can enter when the center device is out of order. The effect of being able to display that is also obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing one embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation when the electric lock is normally unlocked and when it is unlocked by a suspicious person.

FIG. 3 is a flowchart following FIG.

[Explanation of symbols]

 1 Center device 3 Gate terminal 3a Terminal body 3b Card reader 4 Electric lock 4a Solenoid 4b Micro switch for lock / unlock detection 4c Magnet switch for door open / close detection

Claims (2)

[Claims] 1. A center device and a card reader are provided,
A gate terminal unit that outputs an unlocking drive signal when the ID code of the ID card read by the card reader is the same as the ID code registered in advance by the center device, and a door when the unlocking drive signal is input. Unlock the lock, and output an unlock signal to the gate terminal,
And in the entry and exit management system having an electric lock that outputs a door opening signal when the door is opened, start time measurement when the unlocking signal is detected when the unlocking drive signal is not output. A door intrusion detection unit that outputs a door intrusion signal when the door opening signal is detected before the measurement time reaches a predetermined time; and a display unit that displays intrusion of a suspicious person based on the input of the door intrusion signal. A room entrance / exit management system characterized by being equipped with. 2. The display unit comprises a display device for displaying on a monitor the entry of a suspicious individual on the basis of the input of a door intrusion signal, or a voice synthesizer for synthesizing and outputting a voice. The room entrance / exit management system according to claim 1.