JPH04169671A - Key box - Google Patents

Abstract

PURPOSE:To arouse attention to the fastening failure of the door of a room until a key is received by providing, on the doors of individual key housings, intrusion detecting sensors to respective rooms corresponding thereto, and inputting and connecting the intrusion detecting signal to the sensors. CONSTITUTION:A key box 1 is formed of a reader head 2A, a display device 2B, a signal processing unit 2C, a ROM 2D for storing fixed data, a RAM 2E for storing processing data and input data, and an interface 2F. An ID card is read by the reader head 2A, and its result is displayed by the judging device 2B. The intrusion signal of each intrusion sensor 3A-3D is inputted to the interface 2F, and an exciting current is sent to the electromagnetic coil 4A-4D of each key housing. When the intrusion signal is inputted at the time of receiving a key, thus, the opening and closing of the key is made impossible, and fastening of the door and attention can be aroused.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a key box for managing and storing door keys for each tenant room.

[Prior Art] As a conventional key box, there is one shown in FIG. In the figure, (lO) is the entire key box, and the key box (10) includes room key storage boxes (IOA) to (IOD) for each tenant room and a discrimination unit (2) for opening the box. ) is provided. (2A) is the league head that reads the tenant's ID card for ID determination, and (2B) is the GO head that reads the ID determination result.
This is a display device that indicates OD or NG.

Normally, when a tenant goes out in the morning, they take out their room key from the storage box (10), so their ID card is read by the league head (2A) and the ID card is read by the league head (2A). can be opened. Next, when leaving work in the evening, the storage box is opened according to the same <ID discrimination operation, and after opening, the key is stored in the storage box and the lid of the box is closed.

Therefore, tenants are less likely to carry their keys with them and accidentally lose them.

[Problem to be solved by the invention] Conventional key boxes only have the function of safely storing keys, so if a person leaves work without locking the door, there is no way to check if the door is locked properly by the time the key is put away. This is an inconvenience in terms of crime prevention, as employees may have to return to their rooms without worrying about it, or in the worst-case scenario, they may leave the office with the door locked, reassuring themselves only by storing their keys.

This invention was made to solve the above-mentioned problems, and an object of the present invention is to obtain a key box that can alert a tenant to the inadequacy of locking the door at the time of storing the key.

(Means for Solving the Problems) A key box according to the present invention is provided corresponding to each room in a tenant building, and opens the lid of a key storage that stores room keys in accordance with the result of ID determination of the tenant. The key storage device is provided with a means for inputting a detection signal from an intrusion detection sensor installed in a room corresponding to each key storage, and disabling the opening and closing of the lid when an intrusion is detected.

[For use] According to the present invention, if the door of the tenant's room is not properly locked and the intrusion detection sensor is activated and an intrusion signal is output, the key storage for storing the key of the room will be locked. The lid cannot be opened or closed, and the tenant can be notified that the door is not properly locked.

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is an overall configuration diagram of a key box according to this embodiment.

The key box (1) has key storage boxes (IA) to (ID) equipped with electromagnetic locking lids corresponding to each room, and a key storage box (IA) to (ID) equipped with an electromagnetic locking lid for each room, and a key storage box (IA) to (ID) equipped with an electromagnetic locking lid for each room, and a key storage box (IA) to (ID) equipped with an electromagnetic locking lid. An ID discrimination device (2) is provided,
The D discrimination device (2) includes a league head (2A) that reads the ID card, and a display device (2B) that displays the ID discrimination results.
is the provision. Further, intrusion detection signals from intrusion sensors (3A) to (3D) installed in each room are input to the key box.

FIG. 2 is a diagram showing the configuration of the key box (1) excluding the key storage boxes (IA) to (ID). In addition to the league head (2A) and display device (2B), the configuration includes
cpυ (2C) that performs D discrimination operation, lid open signal output, intrusion detection signal processing, etc., CPU (2C) processing programs, ROM (2D) that stores fixed data, temporary storage of processing data and input data. RAM (2E)
In addition to manually inputting intrusion detection signals from intrusion sensors (3A) to (3D) in each room, each key storage box (1A)
An interface (2F) is provided that allows an excitation current to flow through the electromagnetic locking coils (4A) to (4D) of (1D).

FIG. 3(a) is a layout diagram of each intrusion sensor (3A) in tenant A's room (5), for example.
A) includes a door open detection sensor (3A,) and a lock detection sensor (3A2), and the sensor signals of these sensors (3A11, (3A2) are shown as intrusion detection signals.The intrusion detection method includes a door (6) It also detects the unlocked state of the knob (8) due to forgetting to close the window (8) or forgetting to lock the door (6), and outputs an intrusion detection signal to the key box (1).

FIG. 4B is a diagram showing the front of the room door.

Next, the operation of this embodiment according to the above configuration is shown in FIG. 4(a).
This will be explained with reference also to (d). Ward 4 (al ~ (d
1 is a flowchart showing an intrusion signal processing program, an ID discrimination program, and a key box opening program stored in the ROM (20) of the key box (1).

In this operation explanation, taking tenant room A as an example, first check whether the window (7) and door (8) of room A (5) are locked according to the intrusion detection signal from each intrusion sensor (3A+, (3A)). (S-1).At this time, if the door is locked, the intrusion detection signal is not significant (S-2)
, if the door is not locked, the intrusion detection signal is significant (S-3). Next, the person who left room A (5) stores the room key in the key storage box (1A) for his/her room in the key box (1), and enters the ID number of his/her ID card into the league head ( 2A) to read the ID and discriminate the ID ((S-41, (S-511゜゜If this ID number is not a regular number, the NG light on the display device (2B) will light up temporarily and the ID discrimination operation will be performed again. (S-61゜If the ID number is a regular number, the OK light on the display device (2B) will light up temporarily (S-7), and the interface (2F)
Check again whether the intrusion signal input through is significant [5-8]. If it is determined that this intrusion signal is not significant and there is no output, the window (7), door (6)
) is completely locked, and the key storage box (
The electromagnetic locking coil to open the lid of IA) is energized to open the lid (S-9+).After that, the tenant stores the key to open the lid in the key storage box (IA) and closes the lid. is automatically locked [[54D],
ts=11)). Alternatively, if it is determined in step (S-8) that the intrusion signal is significant, the lid of key storage box A (IA+ will not open and N will be displayed on the display device (2B).
The G light and the GO light flash simultaneously for a predetermined period of time to notify the tenant that the door (6) or window (7) is incompletely locked (S-12). As a result, the tenant returns to room A (5) and checks that the door (6) and window (7) are locked.
13]. After that, repeat the operations up to step (S-1) and step (S-7) again, and if the lock is complete, the lid of the key storage box (IA) will be open, and after storing the key, close the lid. Auto lock [fS-9)
~ (S-111+.

After storing the key and going out, when the tenant returns to the tenant building, the tenant again places the ID recognition device (
2) steps (S-4) to (S-7 + similar I
D discrimination is performed t+S-16), (S19)).

As a result of ID discrimination, if it is determined that the ID number is a regular ID number, key storage box A (IA+ lid opens fs-20)
, remove the key, close the lid, and lock automatically [5-2
1+. The tenant goes to room A (5) and uses the key taken out to unlock the door (6) (S-22). After that, when leaving the room and going out, follow the above steps (S-1i ~
Repeat the operation of fs-22+.

In addition, the above implementation. In the example, the lid of the key storage box is prevented from opening when the key storage box is unlocked, but the same effect can be achieved by using the following configuration.

1. You can prevent the lid of the key storage box from closing.

2. Some devices are designed to monitor intruders when the key is stored in a key storage box, but it is also possible to disable intruder monitoring when the key is unlocked.

3. The display may be an auditory display.

4. The same method can be used by using any ID identification device other than a card, such as a numeric keypad or a fingerprint.

5. While the door is locked, the operation of the intrusion sensor may be checked to monitor intrusion. Additionally, automatic notification may be provided when an intrusion occurs.

[Effect of the Invention 1 As described above, according to the present invention, when the intrusion detection sensor installed in the room is activated, it becomes impossible to open and close the lid of the key storage, and the locked state of the door can be detected when returning to the room. The trouble of checking the door is eliminated, and it is possible to prevent the door from being incompletely closed and causing external pressure, so an excellent crime prevention effect can be obtained.

[Brief explanation of drawings]

Figure 1 is an external view of a key box according to an embodiment of the present invention, Figure 2 is a configuration diagram of a key box according to this embodiment, Figure 3 (a) is a layout diagram of an intrusion sensor, A front view of the door, FIG. 4 (aj to (d) is a flowchart explaining the operation of this embodiment, and FIG. 5 is an external view of a conventional key box. In the figure, (1) shows the entire key box, (IA)〜(
ID) is a key storage box, (2) is an ID discrimination device, (
3A) to (3D) are intrusion sensors, and (5) is a room. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] An intrusion is detected in a key box installed in a room corresponding to each key storage in a key box that is installed in a room corresponding to each room in a tenant building and that opens the lid of the key storage that stores the room key according to the tenant's ID determination result. A key box characterized by comprising means for inputting a detection signal from a detection sensor and disabling the opening/closing of the lid when an intrusion is detected.