JPH0247482A - Crime prevention system - Google Patents

Abstract

PURPOSE:To permit the concurrent entering of many people conveniently as well as lengthen the life of lock by a method in which unlocking is made continuously for a given time period when discriminating times of unit time exceed a given value in the unlocking system of electronic key on the basis of ID discrimination. CONSTITUTION:In an ID discrimination system set on the entrance of a building where many tenants live, which is used after closing the main door at night, etc., ID cards 2 are judged by an ID discrimator 1 and an electric key 4 is unlocked through an unlocker 3. The number and time for every ID discrimination are stored in an entrance data memory 5, and on the basis of the data, the number of entered persons at unit time is counted by an entrance rate sensor 6. When the value so counted exceeds a preset given value, an efficient signal is sent out. On the basis of the signal, the key 4 is unlocked continuously for as much time as possible to enable many persons to enter by an unlocker 3.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a security system that unlocks a door and allows entry into a building when the result of ID discrimination is positive. It is.

(Conventional technology) In buildings with multiple tenants,
The opening and closing of the main door is controlled according to a time schedule, and ID recognition devices such as card readers are installed at the side entrances for people who need to enter the building during times when the main door is closed, such as at night. When the results are good,
Security systems that allow entry to buildings by unlocking the electric locks of public buildings are becoming popular.

[Problem to be solved by the invention]

In such conventional security systems, if the time settings for controlling the opening and closing of the main door cannot be set appropriately, the number of people who have to pass through the side door will increase, which will increase the number of lock operations and shorten its lifespan. There was a point.

On the other hand, even if the time settings for controlling the opening and closing of the main door are appropriate, related parties may have to enter the building in groups at night. At this time, it is not necessary to ID one person at a time.
Even though there is no need for identification, conventional security systems have the unlocking time adjusted to the number of people passing by, which poses the problem of being forced to check each person's ID, which is cumbersome. .

This invention was made in order to solve the above-mentioned problems, and to obtain a security system that can extend the life of the lock and eliminate the trouble when people enter a building in a group. With the goal.

[Means for Solving the Problems] In the crime prevention system according to the present invention, the number and time are stored in the admission data storage means for each ID discrimination, and based on the stored contents, the admission rate detection means determines the number of admissions per unit time. In addition to counting the number of people and outputting a significant signal when the counted value exceeds a predetermined value, the unlocking means locks the door at a predetermined time so that multiple people can enter the building in succession according to the significant signal. It is configured to be unlocked.

[Function] In this invention, when the number of people entering the building per unit time exceeds a predetermined value, the door is unlocked for a predetermined time, and during this time many people
It becomes possible to enter the building without D discrimination, thereby reducing the number of times the lock is operated and extending its life.Moreover, it is possible to eliminate the inconvenience caused when people enter the building in groups.

〔Example〕

Hereinafter, embodiments of the present invention shown in the drawings will be described. As shown in Figure 2, from the first floor to the fourth floor of the building (21)
Tenants A to D occupy the floors, and the lobby is in front of tenant A on the first floor. The main door (7) is on one wall of this lobby, and the main door (7) is open on the other wall.
(22) are provided respectively. Among these, the main door (7) is controlled to open and close according to a predetermined time schedule, and when it is closed at night, on holidays, etc., the tenant AND
Special admission will be made to people who are related to any of the following.
A card reader (10) is installed as an ID discrimination device on the side of the common m (22) having an electric lock (4), and when the ID discrimination result is good, the electric lock (4) is unlocked for a short time. I have to.

In this case, the card reader (10) reads the ID card (2), as shown in the block diagram of FIG. and an ID discriminating means (1) for discriminating whether the ID card (2) is a
When the number of people entering the building per unit time is counted based on the admission data storage means (5) that stores the ID number and reading time and the memory contents of this admission data storage means (5), and when the counted value exceeds a predetermined value. When the ID discrimination result is good by the admission rate detection means (6) that generates a significant signal and the ID discrimination means (1), the electric lock (4) is unlocked for a short time, and the admission rate detection means (6) When a significant signal is generated, the electric lock (4)
and an unlocking means (3) for unlocking the electric lock (4) at a time when a plurality of people can enter the museum in order.

FIG. 4 is a block diagram showing the specific configuration of this card reader (10), which includes a ROM (11) that stores an ID discrimination program, and a RAM (11) that stores ID numbers and data necessary for calculation processing. 12) and ROM (11
CPU (
13) and a reader head (1) that reads the ID card (2).
4), a display device (15) that displays a night light and ID discrimination result, a clock (16), and an electric lock I/F (interface) for transmitting and receiving signals between ) (17).

Among these, the reader head (14) is vertically elongated as shown in FIG. 5, and a display device (15) having an ID discrimination result indicator light and a night light is disposed on the side of the reader head (14).

The operation of this embodiment configured as described above is performed by CP, U
The processing procedure of (13) will be explained according to the flowchart of FIG. 6.

First, in step (101), the CPU (13) determines whether or not it is night time. If it is night time, the CPU (13) turns on the night light of the display device (15) in step (102), and then proceeds to step (102). 103) to lock the electric lock (4). On the other hand, if it is not night time, the display device (
The night light (15) is turned off, and the electric lock (4) is unlocked in step (105).

Next, because it was night time, the electric lock (4)
After locking the ID card, it is determined in step (106) whether or not the ID card has been read, and if the ID card has been read, step (107) is performed.
) to determine whether the ID number is a permit number or not. In this case, if the ID discrimination result is bad, the discrimination failure light is temporarily turned on in step (108), and if the ID discrimination result is good, the ID number and passage time are displayed in step (109).
AM (12) and step (110)
), unlock the electric lock (4) at - time, and step (111)
The good discrimination light is turned on temporarily.

Next, in step (112), it is determined whether or not more than a predetermined number of people have entered the building (21) within a predetermined time based on the memory contents of the RAM (12). If this person has entered the museum, the electric lock (4) is unlocked in step (113), and the night light on the display device (15) is turned off in step (114). And step (11
In step 5), it is determined whether a predetermined time has elapsed for the members of the group to enter the building, and if that time has elapsed, the electric lock (4) is locked in step (116), and step (
117) to turn on the night light.

Thereafter, the processes of steps (101) to (117) described above are repeated.

Thus, according to this embodiment, when a large number of people try to enter through the side door (22) at night or on holidays,
Even if not all of them have their IDs checked, only a few people can enter the museum.

Note that once the people managing tenants A to D enter the building at night or on holidays, there may be no problem even if a large number of people enter the building thereafter. In order to carry out such a control operation, instead of the determination in step (112), as shown in FIG. 112a
)And it is sufficient.

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited thereto; for example, the following items (a) to (
As described in section g), modifications can also be made.

(a) In the above embodiment, the electric lock (4) is locked and unlocked at certain times, but the same management can be achieved even if the manager locks and unlocks the lock instead.

(b) In the above embodiment, the general screen (22)
However, the electric lock (4) of the utility screen (22) may be locked at the stage when each door of tenants A to D is locked.

(C) In the above embodiment, it was determined that a predetermined number of people or more had entered the building by counting the number of times the ID discrimination result was good. The number of openings and closings of the common m (22) may also be detected.

(d) In the above embodiment, the electric lock (4) is activated after a predetermined time has elapsed.
However, instead of this, when the number of openings and closings of the side door (22) within a predetermined time falls below a certain value, the electric lock (4) is locked.
It is also possible to lock the door.

(e) In the above embodiment, ID was determined using an ID card, but other ID determination devices may be used instead, or
Similar control can be achieved by combining these ID discrimination devices.

(f) In the above embodiments, the case where the building has only one side door has been described, but the present invention can also be applied to a case where there are a plurality of side doors.

(g) If each tenant is provided with an ID discrimination device, the ID card used therein can also be used as an unlocking card for the access door (22).

〔Effect of the invention〕

As is clear from the above explanation, according to this invention, when the number of people entering the building per unit time exceeds a predetermined value, the door is unlocked for a predetermined period of time, and many people can enter the building during this time without being judged by ■D. This makes it possible to reduce the number of times the lock is operated and at the same time extend its lifespan, and also eliminates the inconvenience caused when people enter the building in groups.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.
Figures 2 and 3 are explanatory diagrams showing the three-dimensional configuration and planar configuration of a building applicable to the same embodiment, Figure 4 is a block diagram showing the specific configuration of the same embodiment, and Figure 5 is the same embodiment. 6 and 7 are flowcharts for explaining the detailed operation of the embodiment. (1)...ID determination means, (2)...ID card,
(3)...Unlocking means, (4)...Electric lock, (5)...
... Admission data storage means, (6) ... Admission rate detection means, (7) ... Main door, (lO) ... Card reader, (
21)...Building, (22)...General purpose screen. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Masuo Oiwa Figure 4 Figure 1 Figure 6

Claims (1)

[Claims] In a security system that unlocks the door and allows entry into the building when the ID discrimination result is favorable, the system includes an entry data storage means for storing the ID identification number and time, and an entry data storage means for storing the ID identification number and time. An admission rate detection means counts the number of people entering the building per unit time based on the memory contents, and generates a significant signal when the counted value exceeds a predetermined value, and a plurality of people enter the building according to the significant signal of this admission rate detection means. A crime prevention system comprising: an unlocking means for unlocking the lock at a possible time.