JPS63293289A - Antitheft apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a crime prevention device that switches a tenant intrusion monitoring device between a warning state and a warning release state based on the output of a personal identification device.

[Prior Art] As this type of security device, a card reader installed at the entrance of a tenant subject to intrusion monitoring is equipped with n(-1°2, 3.4.5
．． ...) When the card is read and the electric lock is unlocked, the intrusion monitoring device goes into the alert state, and when the n+1th person reads the card and locks the electric lock, the intrusion monitoring device goes into the alert state. There was something.

[Problems to be Solved by the Invention] In the conventional security device described above, for example, if the n+1st person leaves the tenant thinking that he or she is the last one and has his or her card read by the card reader, Following 1, the last person actually reads the card thinking ``I'm the last one''.
If you return home without checking the M lock, this will happen exactly the nth time, the electric lock will be unlocked, and the intrusion monitoring device will also be in a state of alert disengagement. There was a problem that this could easily occur.

This invention was made in order to solve the above-mentioned problems, and its purpose is to provide a crime prevention device that can reliably put an intrusion monitoring device in a state of alert, regardless of whether the tenant leaves for the last time or not. shall be.

[Means for Solving the Problems] The crime prevention device according to the present invention uses an output signal of a personal identification device provided at the entrance of a tenant, and an output signal of a personal identification device provided at a side entrance shared by a plurality of tenants. The system switches the intrusion monitoring device between the alert state and the alert release state based on a second detection means that generates a significant signal when only the tenant's personal identification device determines that the identification result is good; and a second detection means that generates a significant signal when the first detection means generates a significant signal, and alerts the intrusion monitoring device. and a memory for setting the intrusion monitoring device in a warning state when the second detection means generates a significant signal.

[Operation] In this invention, when it is determined that both the personal identification device at the side entrance and the personal identification device at the tenant entrance have good identification results, the intrusion monitoring device that has been in the alert state is placed in the alert state, and then When only the personal identification device at the tenant entrance determines that the identification result is good, the intrusion monitoring device is put into the alert state, so no matter how many times the personal identification device is used, such as when returning home, it will always be in the alert state. It is possible to reliably prevent the occurrence of "accompanied mistakes".

[Embodiment] Fig. 1 is a block circuit diagram showing the configuration of an embodiment of the present invention, and Figs. 2 and 3 are a plan view of a tenant and a side entrance showing the arrangement rows of the main elements constituting the embodiment. FIG. In each of these figures, (1) is the side entrance door, =,
(2) is a normally locked electric lock installed on this door, (3) is a card reader as a personal identification device installed on the wall next to door (1), (4a), (4b)
, (4c) is the tenant's door, (5) is the door of the tenant (4a), (6) is a normally locked electric lock installed on this door, and (7) is installed on the wall next to this door. (8) is a passage shared by each tenant, (9) is an ID number memory that stores the ID numbers of people who can pass through the door for all tenants, and (10) is read by a card reader at the side entrance. a coincidence detection circuit (1) which outputs a signal rH when the code set and the code in the ID number memory (9) match;
1) detects the rising edge of the output of this coincidence detection circuit and
A monostable multivibrator (hereinafter referred to as OM) that outputs a signal of "rH" for 0 seconds, (12) is used from 7 p.m. to 8 a.m.
The time scheduler 1 (13) for automatically locking the electric lock (6) by outputting an “H” signal until
An AN that adds the output of (11) to the inverting input terminal, adds the output of time scheduler (12) to other terminals, and locks or unlocks the electric lock (6) by the logical product output.
D gate (14) is an OM that detects the rise of the output of the coincidence detection circuit (11) and outputs a signal of "rH" for 5 minutes;
(15) is an ID number memory that allows the tenant (4a) to store the ID number of a person who is allowed to pass, and (16) is a code and ID number memory that is read by the card reader (7) at the tenant entrance. When the code matches, r i(''
The coincidence detection circuit (17) outputs the signal OM (1
4) is added to one terminal, and the match detection circuit (16)
AND gate (18) serves as a detection means which applies the output of OM (14) to the inverting input terminal and applies the output of the coincidence detection circuit (16) to the other terminal. The AND gate (19) uses the output of the AND gate (17) as the reset terminal, and the AND gate (1
An RS flip-flop (hereinafter referred to as memory) (20), which applies the output of 8) to the set terminal and locks or unlocks the electric lock (6) according to the set output, is provided in the tenant (4a) and is connected to the memory. (19) is a display lamp that is lit by the set output to notify that it is in the intrusion monitoring state or is in the release state, (21) is an intrusion sensor that detects illegal intrusion, and (22) is the memory (19). AND gate (23) that applies the set output to one terminal and the output of the intrusion sensor (21) to the other terminal, respectively;
is an RS flip-flop (hereinafter referred to as memory) which applies the output of the AND gate (22) to the set terminal and the operation signal of the reset button (26) to the reset terminal; (24) is installed in the manager's room; The set terminal output of r
The buzzer (25) is also installed in the manager's room and lights up when the set terminal output of the memory (23) becomes rH. It's a lamp.

The operation of this embodiment configured as described above will be explained below.

First, both the side entrance door (1) and the tenant (4a) door (5) are designed so that you can freely go out from inside and enter by unlocking the electric lock from outside. . Here, assume that a tenant (4a) comes to the building in the morning and inserts a card into the card reader (3). At this time, the coincidence detection circuit (lO) detects the card coat and ID number memory (
9), and outputs an "H" signal when they match. OM
(11) responds to the rise of this signal and applies a signal of "rH" to the AND gate (13) for 10 seconds. On the other hand, the time scheduler (12) outputs the signal "rH" from 7:00 pm to 8:00 am, so the electric lock (2) remains locked until this point, and the OM (11
) outputs an "H" signal, the electric lock (2) becomes unlocked and becomes locked again 10 seconds later. Therefore, during this time, a person opens the door (1) and enters the building. Also,
As the coincidence detection circuit (lO) outputs the "H" signal, the OM (14) continues to output the signal r )( " for 5 minutes. During this time, a person passes through the passage (8)
4a) and insert the card into the card reader (7).

Next, the match detection circuit (16) checks whether the code of the card read by the card reader (7) and the code registered in the ID number memory (15) match or not. When this happens, "H" No. 48 is output. As a result,
In order to invert the output of the AND gate (17) to "H" and reset the memory (19), the set output becomes "H".
Flip to "L". Therefore, the electric lock (6) is unlocked and the indicator lamp (20) is turned off at the same time, indicating that the intrusion monitoring device has become alert Q. From now on, electric lock (6)
Since the door is unlocked, other people can come and go freely.

Next, when leaving work at night, the tenant (4a) closes the door (5) and inserts the card into the card reader (3). Here, the match detection circuit (16) again determines whether or not the code of the card taken by the card reader (7) matches the code registered in the ID number memory (15), and the two match. When this occurs, an "H" signal is output. At this time, since the output of OM (14) is "L", the output of AND game (1B) is inverted to "rH", sets the memory (19), and makes its output "H". As a result, the electric lock (6) is locked and the indicator lamp (20) indicates that the intrusion monitoring device has entered the alert state. Further, even if another person leaving work subsequently inserts the card into the card reader (7), the alert state does not change. In addition, since the electric lock (6) has been locked, from now on, if the card is not inserted into the card reader (7) of the tenant (4a) after inserting the card into the card reader (3) at the side entrance, the tenant will not be able to return. (4a) cannot be entered.

In this state, when an intrusion occurs in the tenant (4a) and the intrusion sensor (21) operates and generates an "H" signal, A
The output of the ND gate (22) also becomes "H" and the memory (2
3) Set. Therefore, at the same time as the buzzer (24) in the management room sounds, the indicator lamp (25) lights up to notify the manager that there has been an intrusion. Therefore, the manager presses the reset button (26) to reset the memory (23), turns off the intrusion indicator lamp (25), and at the same time stops the operation of the buzzer (26). The manager then goes directly to the tenant (4a) and takes appropriate measures.

Thus, according to this embodiment, when both the personal identification device at the side entrance and the personal identification device at the tenant entrance determine that the identification results are good, the intrusion monitoring device, which has been in the alert state, is placed in the alert state, and Then, the intrusion monitoring device can be put into an alert state when only the personal identification device of the tenant population determines that the identification result is good.

Note that the cards for the card readers that make up the five skills listed above may be magnetic cards, IC cards, laser cards, etc. Instead of the card reader, a numeric keypad or a biometric sensor (fingerprint, handprint, etc.) may be used. Other personal identification devices such as voice, handwriting, etc.) may also be used.

Furthermore, the electric lock in the above embodiments may be of any type, and the door itself may be an electric door or the like.

Further, in the above embodiment, the card reader provided at the side entrance is used for both unlocking the electric lock and monitoring intrusion, but it may be provided separately only for monitoring intrusion.

In the above embodiment, when an intrusion occurs, the manager's room is notified, but instead of this, a monitoring center outside the building may be automatically notified and a guard will rush in from there.

Furthermore, in the above embodiment, it is determined whether to enter the alarm state or the alarm release state in conjunction with the operation of the electric lock, but a structure in which the operation of the electric lock and the intrusion prevention are completely separated may also have the same effect as described above. Monitoring becomes possible.

[Effects of the Invention] As is clear from the above explanation, according to the present invention, when both the side entrance personal identification device and the tenant population personal identification device determine that the identification results are good, the system is not in the alert state until now. The intrusion monitoring device that was present will be set to the alert state, and then, when only the personal identification device of the tenant population determines that the identification result is good, the intrusion monitoring device will be set to the alert state. This has the effect of being able to reliably prevent ``mistakes due to carelessness'' from occurring because the system is always in a state of alert.

[Brief explanation of the drawing]

Fig. 1 is a block circuit diagram showing the configuration of an embodiment of the present invention, and Figs. 2 and 3 are a plan view of a tenant and a front view of a side entrance showing an example of the arrangement of the main elements constituting the embodiment. be. (1), (5): Door (2), (6)
:Electric lock (3), (7) :Card reader (
4a) Ni tenant (9), (ls): Io number memory (10), (15) Ni match detection circuit (11)
, (14): Monostable multivibrator (13),
(17), (18): A N D gate T19),
(23): RS flip-flop f21): Intrusion sensor Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (1)

[Claims] A personal identification device provided at a side entrance shared by a plurality of tenants and an entrance of said tenant, an intrusion monitoring device for monitoring illegal intrusion by said tenant, a personal identification device at said side entrance and a personal identification device of said tenant. a first detection means for detecting that both of the tenant's personal identification devices have determined that the identification result is good; a second detection means for detecting that only the personal identification device of the tenant has determined that the identification result is good; and a memory for setting the intrusion monitoring device in an alert state when the first detection means generates a significant signal, and setting the intrusion monitoring device in an alert state when the second detection means generates a significant signal. A security device featuring: