JPH04123651A - Doorphone device with electric lock - Google Patents

Abstract

PURPOSE:To prevent such an accident as unlocking an electric lock of a doorphone being not in the course of speech, etc., and also, to curtail the operating member related to unlocking and locking of the electric lock by unlocking the electric lock corresponding to the doorphone being in the course of speech in plural doorphones. CONSTITUTION:When a call button 14c of a doorphone 14 is operated, and a channel selection button 8a of an indoor terminal 6 is operated, a speech cable L1 is connected to a speech path network 9, and it is possible to speak with a visitor. When the doorphone 14 and the indoor terminal 6 are speaking, a comparator 2a of a speech detecting circuit 2 operates, and a delivery of the comparator 2a becomes an H level. When an electric lock driving circuit 3 operates, an electric lock 17 of a door 16 is unlocked through an electric lock cable L3. In this regard, in this case, the other entry of an AND circuit 5b becomes an H level together with the other entry of an AND circuit 5a, but since a comparator 2b is not operating, the AND circuit 5b remains non-active. in such a way, such an accident as unlocking the electric lock being not in the course of speech, etc., can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a door intercom device with an electric lock, and more particularly to a door intercom device with an electric lock that can accommodate a plurality of door intercoms.

[Prior art and problems to be solved by the invention] As shown in FIG. 2, a conventional door intercom device with an electric lock is connected to an operating section 21 having lock buttons 22a, 28a and unlock buttons 22b, 23b. Control circuit 20, indoor terminal 25 equipped with a handset 26 and channel selection button 27a127b, speaker 28a129a, Vita 28b, 29b, door phone 28.29 equipped with call buttons 28c, 29c, and door 30.
．． It consists of electric locks 31 and 33 provided at 32.

Indoor terminal 25 and doorbell 28, 29 are call cables L
5, L6, the control circuit 20 and the electric lock 31.33 provided on the door 30.32 are connected by electric lock cables L6, L, respectively.

Operate the call button 28c of the door phone 28 in the door phone device with the electric lock configured as described above, and use the channel selection button 27 on the indoor terminal 25.
Press a to connect the handset 26 of the indoor terminal 25 and the doorbell 2.
They can communicate with each other using the eight speakers 28a and microphone 28b. Check for visitors and call doorbell 28
When you press the unlock button 22b of the operating section 21 corresponding to the door 3
0 electric lock 31 is unlocked. Further, when you want to lock the door, press the lock button 22a and the unlocked electric lock 31 will be locked.

In addition, unlock and lock buttons 22b, 23b, and 22a.

23a may be mounted on the top surface of the housing of the indoor terminal 25. There is also a method in which the locking buttons 22a and 23a are omitted and the door is automatically locked 10 to 20 seconds after unlocking.

In the door intercom device with an electric lock having the above configuration, a plurality of electric locks 31
．． Solution corresponding to 33, lock button 22b123b,
22a and 23a, there is a problem in that the electric locks 31 and 33 of the doors 30 and 32 may be unintentionally unlocked and locked. In addition, since the number of lock buttons generally mounted on the top surface of the housing of the general-purpose indoor terminal 25 is one, there is a drawback that it cannot be used with electric locks 31, 33 provided on multiple doors 30, 32. .

[Object of the Invention] The present invention has been made in view of the above-mentioned difficulties, and by unlocking the electric lock corresponding to the doorbell that is in use among a plurality of doorbells, the electric lock of the doorbell that is not in use is unlocked. It is an object of the present invention to provide a door intercom device with an electric lock that can prevent such accidents and reduce the number of operating members involved in unlocking and locking the electric lock.

[Means for Solving the Problems] A door intercom device with an electric lock according to the present invention includes a plurality of electric locks provided on a door compatible with a plurality of door intercoms, an indoor terminal capable of communicating with a plurality of door intercoms, and an indoor terminal capable of communicating with a plurality of door intercoms. One is composed of an in-call door intercom detection means that detects the in-call door intercom during a call with an indoor terminal, and an unlock button that unlocks an electric lock corresponding to the in-call door intercom detected by the in-call door intercom detection means. .

[Example] Hereinafter, an example of the door intercom device with an electric lock according to the present invention will be described in detail with reference to FIG.

As shown in FIG. 1, the door intercom device with an electric lock according to the present invention includes a call detection circuit 2 having comparators 2a and 2b,
A control circuit 1 provided with an electric lock drive circuit 3.4 and AND circuits 5a and 5b, a tuning circuit °7, tuning buttons 8a and 8b,
A telephone network 9, a handset 10, an indoor terminal 6 equipped with an unlock button 11, speakers 14a, 15a, and a vita 14.
b, 15b.

Door phone 14.15 equipped with call buttons 14c and 15c
and an electric lock 17.19 provided on the door 16.18.

The control circuit 1 and door phone 14.15 are connected to terminals T1, T, and communication cables 1, L, which are connected to terminals 6a and 6b of the indoor terminal 6, and the electric lock 17.19 provided on the door 16.18 is a terminal. They are connected via electric lock cables Lm and L4 via T1 and T4, respectively.

Terminals T1 and T of the control circuit 1 are connected to one input side of the comparators 2a and 2b of the call detection circuit 2, respectively,
The other input sides of the comparators 2a and 2b are connected to a reference potential point. Comparator 2a.

The output sides of 2b are connected to one input side of AND circuits 5a and 5b, respectively, and the other input sides of AND circuits 5a and 5b are both connected to terminal T6. Also, the AND circuit 5as5b
The output side of the electric lock drive circuit 3.4 is connected to the input side of the electric lock drive circuit 3.4, and the output side of the electric lock drive circuit 3.4 is connected to the terminals T, , T, and the like.

Terminals 6a and 6b of the indoor terminal 6 are connected to a tuning circuit 7,
If you operate the channel selection buttons ga and 8b, the corresponding terminal 6a,
6b is connected to the call network 9, so the doorbell 1
A conversation can be made between the speaker 14a1 microphone 14b of the door phone 15 or the speaker 15a1 microphone 15b of the door phone 15 and the handset 10.

Further, the unlock button 11 is connected to the terminal Ts of the control circuit 1 via the terminal 6C.

[Operation of the invention] In the door intercom device with an electric lock having the above configuration, the call button 14c of the door intercom 14 is operated, and the channel selection button 8a of the indoor terminal 6 is pressed.
When you operate , the call cable Ls is connected to the call path network 9, and the speaker 14 of the selected doorbell 14 is connected to the call cable Ls.
It is possible to talk to the visitor using the a1 microphone 14b and the handset 10. When the door phone 14 and the indoor terminal 6 are talking, the comparator 2a of the call detection circuit 2 is activated, and the output side of the comparator 2a becomes H level. If the unlock button 11 is operated in this state, the output side of the AND circuit 5a becomes H level and the electric lock drive circuit 3 is activated.

When the electric lock driving circuit 3 operates, the electric lock 17 of the door 16 is unlocked via the electric lock cable.

In this case, the other input side of the AND circuit 5b becomes H level together with the other input side of the AND circuit 5a, but since the comparator 2b is not operating, the AND circuit 5b remains inactive. Therefore, the electric lock drive circuit 4 does not operate, and the electric lock 19 of the door 18 is not unlocked.

The number of door phones 14, 15 installed in the above embodiment is not limited to two.

The call detection circuit 2 in the above embodiment is a doorbell 14.1.
In a system in which 5 is a doorbell with a camera and the indoor terminal 6 is provided with a television monitor, a video signal detection circuit for detecting video signals may be used.

Further, the doorbell in the above embodiment may be used as a collective entrance unit for an apartment complex, and the door may be used as a collective entrance.

[Effects of the Invention] The door intercom device with an electric lock of the present invention includes a plurality of electric locks provided on a door compatible with a plurality of door intercoms, an indoor terminal capable of communicating with the plurality of door intercoms, and one of the plurality of door intercoms connected to an indoor terminal. and an unlocking button that unlocks an electric lock corresponding to the busy doorbell detected by the busy doorbell detecting means during a call. This has the effect of preventing accidents such as unlocking an electric lock when a call is not in progress, and reducing the number of operating members for unlocking and locking the electric lock compared to the conventional method.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the door intercom device with an electric lock according to the present invention, and FIG. 2 is a block diagram of a conventional door intercom device with an electric lock. 2... Call detection circuit (door phone detecting means during a call) 6... Indoor terminal 11... Unlock button 14.15... Door phone 16.18. ...Door 17.19...Electric lock agent Patent attorney Moritani -O

Claims (1)

[Claims] A plurality of electric locks provided on a door compatible with a plurality of doorbells, an indoor terminal that can talk to the plurality of doorbells, and a call that detects the busy doorbell when one of the plurality of doorbells is talking to the indoor terminal. A door intercom device with an electric lock, comprising: a door intercom detecting means; and an unlocking button for unlocking an electric lock corresponding to the in-call door intercom detected by the in-call intercom detecting means.