JPH06261148A - Telephone exchange - Google Patents

Abstract

PURPOSE:To increase the availability and the applicable range of a telephone exchange in a home telephone system by providing a setting/display system and a monitoring system of an electric lock in the telephone exchange. CONSTITUTION:A telephone exchange 1 is provided with an electric lock setting switch 11, an electric lock state display 12, and an electric lock monitoring system 13. When a monitoring signal is supplied to the system 13, it is decided whether the monitoring system is equal to 6V, for example, or not. If so, a fact that a door is kept unlocked is shown on the display 12. If not, it is decided whether the monitoring signal is equal to 12V, for example, or not. If so, a fact that the door is locked is shown on the display 12. If not, a fault state is warned on the display 12. When a resident turns on an electric lock setting switch SW 11 to lock the door, a CPU 2 masks the electric lock monitoring information and transmits a locking signal of the SW 11 to lock a designated door Da or Db. The unlocking procedure is set according to the locking procedure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telephone exchange in a home telephone system or the like.

[0002]

2. Description of the Related Art In a conventional home telephone system of this type, the door phone ringing and the outside line incoming are generally provided by ringing the bell of the telephone to notify the user, so that the discrimination is not sufficient and the usage status is displayed. Since there is no means, there is a difficulty that its usage status is unknown.

In order to solve these problems, for example, Japanese Laid-Open Patent Publication No. 1-138844 proposes and discloses a telephone system in which an incoming call state of a telephone outlet can be known and an intercom call or an extension call can be made by connecting a general single telephone. ing.

This telephone system has 1) its main device,
When an external line from the telephone office is connected and an incoming signal from the external line is detected, a sending means for sending this signal through the control line corresponding to the internal line and a connecting means for connecting the external line and the internal line are provided. 2) A telephone outlet is provided with an incoming call display means for receiving an incoming call display signal from a telephone connecting section connected to the extension line and a main device connected to the control line to display an incoming call, and 3). A general single telephone is detachably connected to the telephone connection portion of the telephone outlet.

[0005]

On the other hand, as a recent tendency, an increasing number of households are equipped with an electric lock system at the openings of doors, windows, etc. of houses from the viewpoint of security / disaster prevention. . However, when locking these openings, the resident had to go to the doors and windows each time, and the locked state could not be known except at that place. In addition, in the event of an abnormality / breakdown of these electric locks, they could not be immediately notified to the resident.

The present invention has been made in view of the above situation, and by providing the telephone exchange of the above-mentioned conventional example with an electric lock setting / display and monitoring system,
It is an object of the present invention to solve the above problems and to effectively use and expand the range of this type of telephone exchange.

[0007]

Therefore, according to the present invention, an electric lock setting means for an opening such as a door, an electric lock state display means, and an electric lock state display means are provided in a home telephone exchange in which an intercom and a telephone are connected. It is intended to achieve the above object by providing the electric lock monitoring system.

[0008]

With the configuration of the present invention as described above, it is possible to lock / unlock the electric lock at the opening of the door or the like from outside the place,
Moreover, the locked state / abnormality can be monitored at one place. Further, in the case of a door, it can be locked / unlocked during a doorphone call, which is advantageous in dealing with visitors and crime prevention.

[0009]

EXAMPLES The present invention will be described below based on examples. FIG. 1 shows a functional block diagram of an embodiment of a telephone exchange according to the present invention, FIG. 2 shows a block diagram of a main circuit according to the present invention, and FIG. 3 shows an example of a telephone system using the same.

(Structure) In FIGS. 1 to 3, 1 is a main unit of a telephone exchange, L1 and L2 are office lines (telephone lines), MJ1,
MJ2 is a modular jack insertion terminal for the telephone Ta, and T1 and T2 are general commercial telephone connection terminals, 1
a is a telephone extension modular, and D1 and D2 are terminals for connecting the intercom D. Further, Da and Db in FIGS. 2 and 3 indicate respective doors equipped with electric locks.

Reference numeral 2 is a 4-bit CPU, 3 is a power supply circuit, 4 is an intercom communication circuit, 5 is an intercom button press detection circuit,
6 is a chime sound sending circuit of the intercom D, 7 is a local line L
Reference numerals 1 and 2 denote ringing tone transmitting circuits, and 8 denotes a speaker. 9
Is an analog switch as a means for automatically reducing the chime sound / ring tone of the speaker 8 together with the resistor 9a, and 10 is a volume switch and an on / off switch. Also,
PC1 and PC2 are photocouplers for detecting incoming calls and call detection of the office lines L1 and L2, respectively, and rl1 and RL1 are relays.

The feature of this embodiment is that the electric lock setting switch 11,
The electric lock status indicator 12 and the electric lock monitoring system 13 are provided. In FIG. 2, office line call unit C _L and intercom call section C _D in the telephone exchange 1 are collectively blocked displayed.

The configurations of the electric lock setting switch 11 and the electric lock state indicator 12 can be easily utilized by the conventionally known techniques, and the description thereof will be omitted. The same applies to the electric lock monitoring system 13. Here, an example of a circuit configured to make a determination based on the voltage value of an input signal and using the photocoupler 13a, each diode, a resistor, and the like is shown.

(Operation) Next, the operation sequences of a) electric lock monitoring function, b) door electric lock locking function, c) station line incoming communication function, and d) intercom communication in the above configuration will be described with reference to FIGS. This will be described using 7.

A) Electric lock monitoring function (FIG. 4; FIGS. 1 and 2) When a monitoring signal is input to the door electric lock monitoring system 13 in step S1, the signal is, for example, 6 in step S2.
It is determined whether or not it is V, and if it is 6 V, in step S3,
The door electric lock status display 12 indicates that the door is in the "released state". On the other hand, when the input signal is other than 6V, it is determined in step S4 whether it is 12V or not,
If it is V, the "locked state" is displayed on the display 12 in step S5, while if it is other than 12 V, a warning that the "abnormal state" is displayed is displayed on the display 12.

B) Door electric lock function (FIG. 5; FIG. 1,
2) When the resident turns on the electric lock setting SW11 to the lock side in step S10, the CPU 2 masks the electric lock monitoring information in step S11, and in step S12, the lock signal of the setting SW11 (one example of the signal waveform is shown on the right side of the figure. (Shown) is sent out, and one of the designated doors Da / Db is locked in step S13. The same applies to cancellation.

C) Telephone line incoming call function (FIGS. 6 and 1) When there is an incoming call on the central lines L1 and L2 and a 16 Hz 75V signal arrives, the photocoupler PC1 detects the incoming call at step S20, and the incoming call is received at step S21. The sound output circuit 7 is driven, and the ring tone is output from the speaker 8 in step S22. Then, in step S23, the photocoupler PC of the call detection circuit is operated by either the off-hook of the telephone set Ta or Tb.
The repetition to step S21 is repeated until the loop is detected by 2, and when the loop is detected, the ring tone sending circuit 7 is released in step S24, and the line communication state is established in step S25.

D) Doorphone call (FIGS. 7 and 1) When the button of the doorphone D is pressed, the doorphone button depression detection circuit 5 is driven in step S30, and the CPU 2 drives the chime sound sending circuit in step S31, The relay RL1 is driven in S32, and a chime sound is sent from the speaker 8 in step S33. Any phone T
When a / Tb is off-hook and the photocoupler PC2 detects a loop in step S34, the intercom communication state is established in step S35. On the other hand, if no loop is detected in step S36, if it is less than 20 seconds after the button press is detected, the process returns to step S34, and if 20 seconds or more elapse, step S3
7 is in the standby state.

Although the above embodiments have been described with respect to the case of the electric lock of the doorphone opening, it is needless to say that this is applicable to other openings such as windows.

[0020]

As described above, according to the present invention, the lock / unlock can be performed from a remote room by the electric lock setting switch for the opening of the door or the like in the telephone exchange. The state can be monitored by one display means, which is extremely advantageous in terms of security. Further, in the case of a door, it can be locked / unlocked during a doorphone call, so that it is possible to smoothly deal with a visitor and immediately lock a suspicious person, which is also useful for crime prevention.

[Brief description of drawings]

FIG. 1 is a functional block diagram of an embodiment.

[Fig. 2] Circuit block diagram of main part

FIG. 3 An example diagram of the telephone system

FIG. 4 is an electric lock monitoring function operation sequence flowchart.

FIG. 5: Door electrical lock function operation sequence flowchart

FIG. 6 is a flow chart of the operation of the incoming / calling function of the central office line.

[FIG. 7] Doorphone call operation sequence flowchart

[Explanation of symbols]

 1 Telephone Switch 11 Electric Lock Setting Switch 12 Electric Lock Status Indicator 13 Electric Lock Monitoring System D Doorphone Da, Db Doors L1, L2 Local Line Ta, Tb Telephone

Claims (1)

[Claims] 1. An electric lock setting means for an opening of a door, an electric lock status display means and an electric lock monitoring system are provided in a home telephone exchange in which an intercom and a telephone are connected. Telephone switch to do.