JP2000196764A - Interphone device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stepwise enlarge the sound volume of a call sound and to permit a manager or a dweller to be conscious of it at a place which is slightly detached from a sound source by providing a control circuit outputting a call command signal to a sound synthesizing circuit when a call signal from another unit is received and outputting a sound volume adjusting signal stored in a memory to a sound volume adjusting circuit. SOLUTION: When a micro computer 1 receives a call signal through a call controller TC from house information disk J, it outputs a call command signal to a sound synthesizing circuit 2. The sound synthesizing circuit 2 receiving the call command signal outputs the call sound signal to an amplifier circuit 3. Since that the sound volume adjusting signal of a medium level is to be the outputted is stored in the incorporated memory in the micro computer 1, the micro computer 1 outputs the sound volume adjusting signal of the medium level from an output P2 to a sound volume adjusting circuit 4. The sound volume adjusting circuit 4 receiving the sound volume adjusting signal turns on a transistor 10 and makes current to a sound volume adjusting resistor 7 of medium resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an intercom system provided in an apartment house or a single-family house, and more particularly to volume control of a ring tone.

[0002]

2. Description of the Related Art In an intercom apparatus provided in each room, a management room, and a collective entrance in a conventional apartment house,
For example, when changing the ringing tone that sounds in the manager's office, the sound button provided on the intercom device of the management control panel provided in the administrator's office has been slid to adjust the magnitude of the ringing tone. The ringing tone stops when the handset of the control panel is hooked on. Note that the alarm sound is fixed.

[0003]

However, in the conventional intercom apparatus, the sound button is slid to adjust the ringing tone. However, even if the sound button is slid to adjust the ringing tone, the ringing tone is actually adjusted. Was inconvenient because the user did not know the volume of the sound without ringing. In addition, since the ringing tone is fixed after the ringing tone is adjusted, when the ringing tone is adjusted to a low level, it may not be noticed when the manager or the resident is at a place slightly away from the sound source. The same applies to the intercom device of a detached house.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and it is possible to confirm the volume of the adjusted ringing tone when adjusting the ringing tone, or to set the volume of the ringing tone stepwise. It is an object of the present invention to provide an intercom device that can be noticed even when the manager or the resident is in a place slightly away from the sound source due to the increase in the size.

[0005]

According to a first aspect of the present invention, there is provided an intercom apparatus for generating a calling voice signal based on a calling command signal, and amplifying the calling voice signal generated by the voice synthesizing circuit. Amplifying circuit, a voice generator for converting the calling voice signal amplified by the amplifying circuit into voice, a volume adjusting circuit for adjusting the level of the calling voice signal generated by the voice synthesizing circuit stepwise based on the volume adjusting signal, and management. Various volume adjustment signals selected according to the number of times the call switch is turned on when the handset of the control panel or the house information panel is in the hook-off state are stored in a built-in memory, and a call command is issued when the call switch is turned on. A signal is output to a voice synthesizing circuit, and a volume control signal stored in the memory is output to a volume control circuit. When a call signal from another device is received, a call command signal is output. It is made of a control circuit for outputting a volume control signal stored in the memory and outputs the voice synthesis circuit volume control circuit.

According to a second aspect of the present invention, a volume control circuit for an intercom apparatus is provided between a voice synthesis circuit and an amplifier circuit, and includes a plurality of volume control resistors having different resistance values; And a switching element that is turned on in response to a volume adjustment signal from the control circuit.

A control circuit of the intercom apparatus according to a third aspect of the present invention has a built-in timer, which outputs a calling command signal to a voice synthesizing circuit when receiving a calling signal from another device, and outputs a calling command signal to a sound volume adjusting circuit. It outputs a volume adjustment signal for increasing the volume stepwise at predetermined time intervals during a certain period of time.

The intercom apparatus according to a fourth aspect of the present invention receives a call signal from the control panel for control or the house information panel and transmits a call signal of the microphone of the collective entrance to the control panel for control or the house information panel. A speech circuit for generating a calling voice signal based on a calling command signal, an amplifying circuit for amplifying the calling voice signal generated by the voice synthesizing circuit and a calling signal of the calling circuit, and a call amplified by the amplifying circuit. A voice loudspeaker for converting a voice signal into voice, a volume control circuit for adjusting the levels of a call voice signal generated by a voice synthesis circuit and a call signal of the call circuit stepwise based on a volume control signal, and a number for each room. A numeric keypad for inputting and setting an adjustment mode when the power is turned on, and an adjustment mode when the power is turned on upon receiving an ON signal of an ON operation of at least two keys of the numeric keypad, and adjusting the adjustment mode In response to a tone control signal that gradually increases the sound level in accordance with the number of on-operations of one key in response to the on-signal of the number of on-operations of one key and an on-signal of the number of on-operations of another key A volume adjustment signal for gradually lowering the sound level gradually from the previous time is stored in a built-in memory, and a call command signal is output to the voice synthesis circuit when the call switch of the collective entrance is turned on, and the volume stored in the memory is also stored. An adjustment signal is output to the volume adjustment circuit, and when a call signal is received from the house information panel or the control panel in a mode other than the adjustment mode, a call command signal is output to the voice synthesis circuit and the volume adjustment signal stored in the memory is output. And a control circuit for outputting to the volume control circuit.

A volume control circuit of the intercom apparatus according to a fifth aspect of the present invention is provided between the voice synthesis circuit and the amplifier circuit, and includes a plurality of volume control resistors having different resistance values, and each volume control resistor and the ground. And a switching element that is turned on in response to a volume adjustment signal from the control circuit.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 is a circuit diagram showing a configuration of an intercom device of a control panel for management according to Embodiment 1 of the present invention, FIG. 2 is a system diagram of security equipment and intercom equipment, and FIG. 3 is a system diagram of FIG. FIG. 4 is a schematic front view of a management control panel further provided with a security function in addition to a management room unit provided with an intercom function provided in FIG. 4, and FIG. 4 is a system unit provided with an intercom function provided in each room in the system diagram of FIG. 2 is a schematic front view of a house information panel further provided with a crime prevention function, and FIG. 5 is a schematic front view of a collective entrance machine provided with an intercom function provided at the entrance in the system diagram of FIG.

Here, prior to the description of FIG. 1 showing the configuration of the intercom apparatus of the management control panel, which is a feature of the present invention, the entire system to which the house information panel is applied will be described first with reference to FIG. .

In FIG. 2, TC is a call control device, VC
Denotes a video control device, EP1 to EPk denote lobby intercoms (collection entrance machines) provided at the collective entrance of an apartment house such as an apartment, SM1 and SM2 denote management control panels provided in a control room of the apartment house, and SMP. Is the call control device TC
J1 to Jn are house information panels provided with an intercom function provided in each room of the apartment house and further provided with a crime prevention function. is there. L11 to L13 are control lines, L
21 to L23 are first communication lines, L31 to L33 are second communication lines, L41 to L43 are first video lines, and L51 to L53 are second video lines.

In FIG. 2, DP1 to DPn are provided outside the entrance of each room, doorphones connected to the housing information panels J1 to Jn of the room, and SE1 is a monitoring line LS21 to LS2.
n, security sensors at the entrance of each room connected to the housing information panels J1 to Jn, SE2 to SEn are monitoring lines LS21 to LS21.
It is a security sensor provided at a part other than the entrance (for example, a window facing a veranda) of each room connected to the house information panels J1 to Jn by LS2n. In FIG. 2,
This shows a case where the security sensor SE1 provided at the entrance of each room is connected to the monitoring lines LS21 to LS2n of the same system as the security sensors SE2 to SEn provided at parts other than the entrance. It may be connected to the LS11 to LS1n to perform monitoring different from the security sensors SE2 to SEn.

The home information panels J1 to Jn shown in FIG.
A microcomputer 1 is provided, and the microcomputer 1 performs various operation processes according to programs stored in a memory. Since the crime prevention function is not essential in the present invention, the house information panels J1 to Jn may be replaced with an intercom device having an intercom function. still,
The fire signal is transmitted from the house information panels J1 to Jn to a not-shown dwelling receiver via an unshown automatic fire notification signal line.

In FIG. 3 showing a control panel for management, HS is a handset (handset) of an intercom, SPK is a speaker which is a sound generator for passing a call sound of the intercom, a call from each room, etc., and IND1 and IND2 are displays. IND1 is a room number display section for a 7-segment alarm, IND2 is a destination room number display section for a 4-digit 7-segment call / call, LP1 to LP12 are various display lights, and LP1 is a fire (not shown). A fire indicator light that lights up when a transfer signal from the receiver is received, an emergency indicator light LP2,
P3 is a security indicator light, LP4 is a ventilation indicator light, LP5 is a gas leak indicator light, LP6 is a call indicator light that lights when receiving a signal from a call push button provided in a bathroom (not shown), LP7 is a failure indicator light, LP8 is a fault indicator, LP
9 is the next alarm indicator, LP10 is the failure shutoff indicator, LP1
Reference numeral 1 denotes an unlocking indicator, and LP12 denotes a memory LED indicating the operation of the memory.

SW1 to SW11 are various switches (non-locking push button switches). For example, SW1 is a sound stop switch for stopping the alarm sound of the subsequent re-ringing method.
W2 is an alarm restoration switch for restoring an alarm, and SW3 is a shift switch for shifting the display forward, and is shifted by one operation. When the shift switch SW3 is continuously operated for one second, the shift is performed at intervals of one second, and when the shift switch SW3 is continuously operated for three seconds or more, the shift is performed at intervals of 0.5 seconds. That is, when a plurality of rooms successively transmit alarm signals, the room number display section IND1
Displays the room number of the room that has transmitted the first alarm signal. When it is desired to display the room number that has transmitted another alarm signal thereafter on the room number display section IND1, the shift switch SW3 is operated. SW4 is an emergency call switch for calling each room in an emergency, and has a function of interrupting a busy call and interrupting a call in an emergency. S
W5 is a broadcast switch for performing simultaneous broadcasting, system-based broadcasting, and individual broadcasting in each room, SW6 is a numeric keypad for calling each room, and SW7 is an unlocking device for unlocking an automatic lock during a call with a collective entrance. SW8 is a cancel switch operated when an erroneous operation is performed, SW9 is a call switch for calling each room, SW10 is a message set switch for displaying a room number within 20 units when each room is called, and SW11. Is a message reset switch for deleting that there is a call from each room. That is, when there is a call from each room and the room number is stored in the memory, the handset HS of the management control panel SM is hooked on, the * key of the ten keys SW6 is pressed, and the message set switch SW10 is pressed. Is displayed on the display unit IND2, and when the shift switch SW3 is further pressed, the room number of another called room is displayed on the display unit IND2.
Displayed at D2. When the message reset switch SW11 is pressed while the room number of the called room is displayed on the display unit IND2, the room number is deleted from the memory.

In FIG. 4 showing the home information panel, HS is a handset (handset) of an intercom, SPK is a speaker which is a sound generator for outputting interphone ringing sound, broadcast from a control room, alarm sound, etc., and MN is a collective. Entrance machine EP1
It is a monitor television such as a CRT or LCD for displaying a visitor's image transmitted from a television camera (not shown) of EPk. LP11 to LP15 are various indicator lights.
P11 is a power light, LP12 is a lobby light indicating a call from the entrance machines EP1 to EPk, LP13 is a door phone light indicating a call from a door phone, and LP14 is a management indicating a call from a control room. The room light LP15 is a warning light indicating that security is being watched.

In FIG. 4, SW21 to SW26 are various switches. For example, SW21 is a selection setting switch for selecting and setting either a home security mode (home mode) or an outside security mode (outroom mode). Security switch also serving as a release switch for each security mode, SW22 is a manager call switch, SW23 is a sound stop switch, SW
24 is a switch for restoring accidents such as fire and gas leakage,
SW25 is an emergency notification switch, and SW26 is an unlock switch for unlocking the automatic door of the collective entrance. The switches 21 to 24, 2 excluding the emergency notification switch SW25
6 uses a non-locking push button switch.

In FIG. 4, each of the security sensors SE1 to SE
As an example of 2, a reed switch LSW provided in series with the monitoring line LS <b> 2 and a magnet MG for turning on / off the reed switch LSW attached to the door or window of each room are illustrated. When the doors or windows of the sensors SE1 and SE2 are closed, the reed switch LSW is turned on by the magnet MG. Note that other types of sensors may be used.

In FIG. 5 showing the collective entrance, SPK is a speaker which is a sound generator for outputting intercom ringing sound, broadcast from the control room, alarm sound, and the like, and CMR is an image of a visitor in front of the collective entrance. TV camera and ARK are auto-lock release keyway for residents to unlock auto-lock,
IND11 is a four-digit seven-segment room number display section for displaying a room number input using a ten-key described later in red. The MIC is a microphone as audio input means for outputting audio to the house information panels J1 to Jn and the management control panel SM.

LP21 to LP25 are various indicator lights.
As an indicator light, LP21 is a call indicator light for displaying a blinking red light during a call, and LP22 is a room number input indicator light for instructing the input of a room number.
Flashes when entering a room number using the numeric keypad. LP2
3 is a call indicator light which flashes red and instructs a call operation of the room input by the ten keys, LP24 is a call indicator light which instructs to call and waits for a call by flashing red, and LP25 flashes red to indicate an operation error. It is a re-input instruction light. In FIG. 5, SW31 to SW34 are various switches (non-locking push button switches). For example, SW31 is a numeric keypad for setting a room number, SW32 is a cancel switch for canceling an operation input, and SW33 is a call for calling each room. A switch SW34 is a guidance switch for producing a voice synthesis guidance message.

Here, the operation of the intercom function of the house information panels J1 to Jn will be described with reference to an example between the collective entrance machines EP1 to EPk. The number of the room to be visited by the visitor, for example, by operating the ten key SW31 of the collective entrance machine EP1, for example, 1
When the user inputs 02 and then presses the call switch SW33, a call signal including a room code and a call code is sent from the collective entrance apparatus EP1 to the call control device TC via the control line L11. When the call control device TC receives the call signal from the collective entrance machine EP1, the call control device TC checks for a free call line and a video line.
If the second communication line and the second video line are in use, a call signal and a call / video line designation command for the first communication line L22 and the first video line L42 are transmitted via the control line L12. In addition to sending to the panel J2, the video line designation command of the first video line L41 is transmitted to the collective entrance machine EP1 via the control line L11. Also, the video controller VC via the control line L61.
To connect the video lines L41 and L42. As a result, in the collective entrance machine EP1, the television camera CMR
Is activated, the first video line L41 is connected by a video connection switch (not shown), and a visitor video signal is transmitted to the first video line L41.

Further, the house information panel J2 of the room 102 is provided with a calling signal received through the control line L12 and the first communication line L22.
In response to the call / video line designation command for the first video line L42, the connection switches for communication and video (not shown) are controlled to connect the first communication line L22 and the first video line L42, respectively. In addition, a ringing tone is emitted from the speaker SPK, the lobby light LP2 is turned on, the monitor television MN is activated, and an image based on the image signal transmitted by the first image line L42 is broadcast.

In the following, hook-on is a house information panel J2
Means to release a hook (not shown) of the board by removing the handset HS from the board, and "hook-off" refers to placing the handset HS of the housing information board J2 on the board to push down a hook (not shown) of the board. Say. When the handset HS is picked up by the house information panel J2, a hook (not shown) of the house information panel J2 that has been pressed by the handset HS is released (hook-on), and the house information panel J2 is connected to the communication control device TC via the control line L12. A hook-on signal is sent. Upon receiving the hook-on signal from the house information panel J2, the call control device TC sends a call line designation command for the first call line L21 to the collective entrance device EP1.
Controls a call connection switch (not shown) to connect the first call line L21. As a result, a communication path between the collective entrance machine EP1 and the housing information panel J2 is formed.
A call is made with a resident of the room. If there is an automatic door for entrance at the collective entrance, when the unlock switch SW6 of the house information panel J2 is operated, an unlock signal is sent to the electric lock of the collective entrance machine EP1 via the control lines L12 and L11, The door is opened.

When the call ends and the handset HS of the house information panel J2 is returned (hook off), a call end signal is sent from the house information panel J2 to the call control device TC via the control line L12. The call control device TC is connected to the control line L1.
1 and L12 and an end command to the video controller VC. Thereby, the collective entrance machine EP1 turns off the television camera and opens the respective connection switches of the first communication line L21 and the first video line L41, and the house information panel J2 turns off the monitor television MN and the first communication line L22. And the first video line L
The respective connection switches 42 are opened, and the video controller VC releases the connection between the first communication line L21 and the first video line L41.
As a result, the first communication line and the first video line are released.

Now that the operation of the housing information panels J1 to Jn has been clarified by the above description, the configuration of the intercom apparatus of the management control panel SM shown in FIG. 1 will be described. Reference numeral 1 denotes a microcomputer of the management control panel SM for performing call control between the house information panel J or the collective entrance machine EP and the management control panel SM via the communication control device TC, and SW9 is provided in the management control panel SM. Call switch. The microcomputer is an example of a control circuit. Reference numeral 2 denotes a voice synthesizing circuit for generating a calling voice signal based on a calling command signal from the microcomputer 1, reference numeral 3 denotes an amplifier circuit for amplifying the calling voice signal generated by the voice synthesizing circuit, and SP.
K is a speaker which is a voice generator for converting the calling voice signal amplified by the amplification circuit 3 into voice, and 4 is a volume control for adjusting the level of the calling voice signal generated by the voice synthesis circuit 2 stepwise based on the volume control signal. Circuit.

This volume adjustment circuit 4 has three volume adjustments provided between the ground and a connection line 5 connecting the voice synthesis circuit 2 and the amplification circuit 3 and having different resistance values in three stages of small, medium, and large, respectively. Resistances 6, 7, 8 and the volume control resistors 6, 7, 8 are respectively provided between the ground and each of the microcomputers 1.
Transistor 9, which is a switching element that is turned on by a volume control signal from each port output P1, P2, P3 of
10 and 11.

Next, the operation of the first embodiment will be described with reference to FIG. First, in the initial setting, when the microcomputer 1 receives a call signal from, for example, the house information panel J via the call control device TC, the microcomputer 1 outputs a call command signal to the speech synthesis circuit 2. The voice synthesizing circuit 2 that has received the calling command signal outputs a calling voice signal to the amplifier circuit 3. At this time, since the microcomputer 1 is initially stored in the built-in memory so as to output the medium level volume adjustment signal, the microcomputer 1 sends the medium level volume adjustment signal from the port output P2 to the volume adjustment circuit 4. Is output. Upon receiving the volume control signal, the volume control circuit 4 turns on the transistor 10 so that a current flows through the volume control resistor 7 having a medium resistance value. In this way, the volume control circuit 4 sets the level of the ringing voice signal generated by the voice synthesizing circuit 2 to the middle level and outputs the ringing voice signal to the amplifier circuit 3, and the speaker SPK converts the amplified ringing voice signal in the level into a ringing tone. Utter. This ringing tone is distinct from the alarm tone. If the handset HS is hooked on the board in the control room, the ringing tone stops. Thereafter, when the microcomputer 1 receives the calling signal, the microcomputer 1 continues to output the medium level volume adjustment signal to the volume adjustment circuit 4 from the port output P2.

As described above, the microcomputer 1 is initially set so as to output a medium level volume control signal to the volume control circuit 4, but the level of the volume control signal from the microcomputer 1 to the volume control circuit 4 is variable. If you want to do so, set as follows. When the call switch SW9 is pressed once, for example, when the handset HS of the management control panel SM is in the hook-off state (the state in which the handset HS is on the panel), an operation signal is output to the microcomputer 1 and the microcomputer 1
Is stored in a built-in memory so as to output a large level volume adjustment signal from the port output P3, and the microcomputer 1 outputs a large level volume adjustment signal to the volume adjustment circuit 4 from the port output P3. The volume control circuit 4 that has received the volume control signal turns on the transistor 11 so that a current flows through the volume control resistor 8 having a large resistance value.

At the same time, the microcomputer 1 receiving the operation signal outputs a call command signal to the voice synthesizing circuit 2 temporarily, for example, for 2 seconds. The voice synthesizing circuit 2 generates a calling voice signal and outputs it to the amplifying circuit 3. The volume adjusting circuit 4 is configured such that the transistor 11 is turned on and a current flows through the volume adjusting resistor 8 having a large resistance value. As a result, the level of the ringing voice signal created by the voice synthesis circuit 2 is increased and output to the amplifier circuit 3, and the speaker SPK converts the amplified ringing voice signal having a large level into a ringing tone and utters it on a test basis.
Have the operator check the volume. When the microcomputer 1 receives the call signal after the adjustment, the microcomputer 1 continues to output a large-level volume adjustment signal to the volume adjustment circuit 4 from the port output P3.

Next, when the microcomputer 1 is set to output a large-level volume control signal to the volume control circuit 4, when the handset HS is in the hook-off state, the call switch SW9 is pressed once, for example. When operated, the operation signal is output to the microcomputer 1, and the microcomputer 1 is stored in a built-in memory so as to output a small level volume adjustment signal from the port output P1, and the microcomputer 1 outputs the port output P
1 outputs a low-level volume control signal to the volume control circuit 4. Upon receiving the volume control signal, the volume control circuit 4 turns on the transistor 9 so that a current flows through the volume control resistor 6 having a small resistance value, and a small ringing tone is emitted from the speaker SPK. Also at this time, the adjusted ringing tone is audibly uttered, for example, for 2 seconds from the speaker SPK. Further, when the call switch SW9 is pressed once, the microcomputer 1 is stored in a built-in memory so as to output a medium level volume adjustment signal from the port output P2.

Incidentally, from the initial setting, the call switch SW
If the user presses 9 twice in succession, the microcomputer 1 is stored in a built-in memory so as to output a low-level volume adjustment signal from the port output P1. Therefore, when the handset HS of the management control panel SM is in the hook-off state, the call switch S
When the volume is adjusted by pressing W9, a ringing tone with the adjusted volume is uttered, so that the operator can check the ringing tone, which is convenient. It should be noted that the alarm sound is distinguished by a difference in sound. In the first embodiment, the volume control of the ringing tone of the intercom device of the management control panel has been described.
The volume adjustment of the ringing tone of the intercom device of the house information panel is also performed by the exactly same configuration as in the first embodiment, and it goes without saying that the present invention is applied.

Embodiment 2 FIG. FIG. 6 is a circuit diagram showing a configuration of an intercom apparatus of a control panel for management according to Embodiment 2 of the present invention, and FIG. 7 is a flowchart showing volume control of a ringing tone of the intercom apparatus of the same control panel. In the second embodiment, when the management control panel SM receives a call signal from the house information panel J or the collective entrance machine EP and sounds a ringing tone, the ringing tone is automatically and gradually louder. It is. In the second embodiment of the present invention, a microcomputer 15 as an example of a control circuit further includes a built-in timer 15.
The other configuration is the same as that of the first embodiment, and therefore, the same reference numerals as those in the first embodiment denote the same components, and a description of the redundant configuration will be omitted.

Next, the operation of the second embodiment of the present invention will be described with reference to FIG.
A description will be given based on the flowchart showing the ringing tone volume control shown in FIG. The microcomputer 1 determines whether or not there is a call signal from the house information panel J or the collective entrance device EP via the call control device TC (step S1), and if there is a call signal, sets the timer 15A for 15 seconds. Outputs a call command signal to the voice synthesis circuit 2 and outputs a low-level volume adjustment signal from the port output P1 to the volume adjustment circuit 4. Upon receiving the call command signal, the voice synthesis circuit 2
To output a calling voice signal. Further, the volume control circuit 4 which has received the low level volume control signal from the port output P1 of the microcomputer 1 turns on the transistor 9 so that a current flows through the volume control resistor 6 having a low resistance value. By doing so, the level of the calling voice signal created by the voice synthesizing circuit 2 is reduced and output to the amplifier circuit 3, and the speaker SPK converts the low-level amplified calling voice signal into a ringing tone and sounds it (step). S2).

Then, it is determined whether or not the timer 15A has timed out in 15 seconds (step S3). If the time has not elapsed, the handset HS of the management control panel SM is in the hook-on state (the state in which the handset HS is taken). ) Is determined (step S4), and the handset H
If S is not in the hook-on state, the process returns to step S3,
In the hook-on state, the output of the low-level volume adjustment signal from the port output P1 is stopped, and the output of the call command signal to the voice synthesizing circuit 2 is also stopped to stop the ringing sound (step S5). ).

In step S3, the timer 15A
When the time is up in seconds, the timer 15B is set (step S7), and for 15 seconds, the calling command signal is output to the voice synthesis circuit 2 and the output of the volume adjustment signal from the port output P1 to the volume adjustment circuit 4 is output. Stop and output port P
2 outputs a medium level volume control signal to the volume control circuit 4. The voice synthesizing circuit 2 that has received the calling command signal outputs a calling voice signal to the amplifier circuit 3. Further, the volume control circuit 4 which has received the medium level volume control signal from the port output P2 of the microcomputer 1 turns on the transistor 10 so that a current flows through the volume control resistor 7 having a medium resistance value. By doing so, the level of the calling voice signal generated by the voice synthesizing circuit 2 is output to the amplifying circuit 3 with the level set to the middle level, and the speaker S
In the PK, the amplified calling voice signal in the level is converted into a ringing tone and sounded (step S8).

Then, it is determined whether or not the timer 15B has timed out in 15 seconds (step S9). If the time has not expired, the handset HS of the management control panel SM is in the hook-on state (the state in which the handset HS is taken). ) Is determined (step S10). If the handset HS is not in the hook-on state, the process returns to step S8. If the handset HS is in the hook-on state, the output of the medium level volume adjustment signal from the port output P2 is stopped and Then, the output of the calling command signal to the voice synthesizing circuit 2 is also stopped, and the ringing sound is stopped (step S6).

Further, at step S9, the timer 15B is set to 1
When the time is up in 5 seconds, the timer 15C is set (step S11), and for 15 seconds, a calling command signal is output to the voice synthesizing circuit 2 and a volume adjusting signal is output from the port output P2 to the volume adjusting circuit 4. Is stopped, and a large-level volume adjustment signal is output from the port output P3 to the volume adjustment circuit 4. The voice synthesizing circuit 2 that has received the calling command signal outputs a calling voice signal to the amplifier circuit 3. Also, microcomputer 1
The volume control circuit 4 receiving the large volume control signal from the port output P3 turns on the transistor 11 so that a current flows through the volume control resistor 8 having a large resistance value. By doing so, the level of the ringing voice signal created by the voice synthesis circuit 2 is increased and output to the amplifier circuit 3, and the speaker SPK converts the amplified ringing voice signal having the high level into a ringing tone and sounds (step S12).

Then, it is determined whether or not the timer 15C has timed out in 15 seconds (step S13). If the time has not elapsed, the handset HS of the management control panel SM is in a hook-on state (the state in which the handset HS is taken). ) Is determined (step S14). If the handset HS is not in the hook-on state, the process returns to step S12. If the handset HS is in the hook-on state, the output of the large-level volume adjustment signal from the port output P3 is stopped, and Then, the output of the calling command signal to the voice synthesizing circuit 2 is also stopped, and the ringing sound is stopped (step S6). When the timer 15C times out in 15 seconds in step S13, the output of the volume control signal from the port output P3 is stopped, and the output of the call command signal to the voice synthesizing circuit 2 is also stopped to generate a ringing tone. Also stops (step S15), and returns to step S1 to wait for a call signal.

As described above, when the management control panel SM receives a call signal from the house information panel J or the collective entrance machine EP, the ringing sound of the speaker SPK of the management control panel SM is changed to the house information panel J or the group. When the call switch of the entrance machine EP is operated once, it is small every 15 seconds out of 45 seconds.
Since the sound is automatically made loud gradually in stages of medium and large, even if the manager is away from the control panel SM for management in the manager room, he / she will notice. In the above-described second embodiment, the volume adjustment has been described in which the ringing tone of the intercom device of the management control panel SM is automatically increased in a stepwise manner. The adjustment is performed by the completely same configuration as in the second embodiment, and it goes without saying that the present invention is applied.

Embodiment 3 FIG. 8 is a circuit diagram showing a configuration of an intercom apparatus of a collective entrance apparatus according to Embodiment 2 of the present invention. In the figure, reference numeral 21 denotes a communication control device TC between the house information panel J or the management control panel SM and the collective entrance machine EP.
Is a microcomputer as an example of a control circuit of the collective entrance apparatus EP that performs a call control via the control unit. SW31 is a collective entrance machine EP
Numeric keypad for inputting room number etc. provided on the board
W33 is a call switch provided on the panel of the collective entrance machine EP, LP21 to LP25 are various operation indicators, IND1
Reference numeral 1 denotes a seven-segment display unit for displaying a room number provided on the panel of the collective entrance machine EP.

Reference numeral 22 denotes a voice synthesizing circuit for generating a calling voice signal based on a calling command signal from the microcomputer 21, reference numeral 23 denotes an amplifying circuit for amplifying the calling voice signal generated by the voice synthesizing circuit 22, and reference numeral SPK denotes a collective entrance unit EP. A speaker, which is provided on the panel and is a voice generator for converting a calling voice signal amplified by the amplifier circuit 23 into a voice, 24 adjusts the level of the calling voice signal generated by the voice synthesizing circuit 22 stepwise based on the volume control signal. This is a sound volume adjustment circuit. Since the internal configuration of the volume adjustment circuit 4 is the same as that of the first embodiment,
The description is omitted.

Reference numeral 25 denotes an amplifying circuit for amplifying the audio signal of the microphone MIC provided on the panel of the collective entrance machine EP, and 26 designates the collective entrance machine EP and the control panel SM for management and the house information panels J1 to J.
a first communication circuit for transmitting and receiving a communication signal to and from the first communication circuit 27;
Is a collective entrance machine EP, a control panel SM for management and a house information panel J1.
A second communication circuit for transmitting and receiving a communication signal between the first and second communication terminals;
28 is a transmission / reception circuit for transmitting and receiving control signals between the collective entrance machine EP and the management control panel SM or the housing information panels J1 to Jn. 29 is a first communication circuit 26 and a second communication circuit 26 based on a switching signal of the microcomputer 21. A switching circuit for switching with the communication circuit 27, an unlocking response circuit for receiving an unlocking key signal by an unlocking key, for example, and an unlocking signal for an electric lock based on an unlocking command from the microcomputer This is an unlock output circuit for outputting.

Next, the operation of the third embodiment will be described with reference to FIG. First, when the collective entrance machine EP is installed at the collective entrance, the microcomputer 21 is connected to the housing information panel J, for example.
When a call signal is received from the telephone control device TC via the call control device TC, a call command signal is output to the voice synthesis circuit 2, and the voice synthesis circuit 2 receiving the call command signal outputs a call voice signal to the amplifier circuit 3. I do. At this time, since the microcomputer 21 is initially stored in a built-in memory so as to output a medium level volume adjustment signal, the microcomputer 1 outputs the port output P2
Outputs a medium level volume control signal to the volume control circuit 24. In the volume control circuit 24 receiving the volume control signal, the level of the calling voice signal created by the voice synthesizing circuit 22 is set to the middle level and output to the amplifying circuit 23, and the amplified calling voice signal in the level is output to the speaker SPK. And convert it to utterance. Thereafter, when the microcomputer 21 receives the call signal, the microcomputer 21 continues to output the medium-level volume adjustment signal from the port output P2 to the volume adjustment circuit 4.

As described above, the microcomputer 21 is initially set so as to output a medium-level volume adjustment signal to the volume adjustment circuit 4. However, when the collective entrance machine EP is actually installed at the entrance, the ringing sound of the middle level uttered from the speaker SPK is not always appropriate due to the environment around the entrance such as the degree of sound reflection. Therefore, the level of the volume control signal output from the microcomputer 21 to the volume control circuit 4 needs to be variably adjusted. Therefore, after the installation of the collective entrance machine EP, the variable mode is set as follows while actually listening to the ringing sound of the speaker SPK based on the level of the volume control signal output to the volume control circuit 4 when the power is turned on after the installation of the collective entrance apparatus EP. I do.

First, after the collective entrance machine EP is installed, when the two keys 1 and 2 of the numeric keypad SW31 are turned on when the power is turned on, for example, the microcomputer 2 receiving these operation signals
1 enters the adjustment mode. Then, when one key is turned on once, the built-in memory outputs a large-level volume adjustment signal in which the first-step sound is louder than the initially set medium-level volume adjustment signal. It is memorized. Also, when the key 2 is turned on once, the internal memory is output so as to output a low-level volume adjustment signal in which the one-step sound is smaller than the initially set medium-level volume adjustment signal. Is done.

Next, a call switch SW of the collective entrance machine EP
When the microcomputer 33 is turned on, the microcomputer 21 outputs a call command signal to the voice synthesizing circuit 22 and outputs a large or small level volume adjustment signal stored in the memory to the volume adjustment circuit 24 for a short time, for example, two seconds. The adjusting circuit 24 increases or decreases the level of the calling voice signal created by the voice synthesizing circuit 2 and outputs it to the amplifying circuit 23. The speaker SPK converts the amplified calling voice signal of high or low level into a ringing sound. Speak experimentally. When the microcomputer 21 receives a call signal from any of the management control panel SM or the house information panels J1 to Jn after the adjustment, the microcomputer 21 outputs a volume adjustment signal for increasing or decreasing the level of the call voice signal. Output to the volume control circuit 4 is continued. Further, since the input side of the volume control circuit 24 is connected to the first call circuit 26 and the second call circuit 27 via the switching circuit 29, the call control is also performed when a call voice signal is input to the volume control circuit 24. Like the sound, the level of the speech signal is adjusted in three stages.

Thus, in the collective entrance machine EP,
After installing the entrance door EP, use the numeric keypad when turning on the power.
By operating 33, the volume can be adjusted to an appropriate ringing tone or telephone call tone that matches the environment around the entrance. In the third embodiment, the case where the volume adjustment is performed in three stages has been described. However, by increasing the number of port outputs of the microcomputer 21 and the number of volume adjustment signals of the volume adjustment circuit 24, it is possible to press one numeric keypad a plurality of times. For example, it is needless to say that the volume is gradually increased from the previous time, and if the other numeric key is pressed a plurality of times, the volume is gradually decreased from the previous time, and the volume can be adjusted in a plurality of stages. Also,
Although the above embodiment has been described with reference to the intercom of the apartment house, the same applies to the intercom apparatus of the detached house. Note that, in the above-described embodiment, an example in which the management control panel is provided in the management room has been described, but it may be provided in a location other than the management room.

[0049]

As described above, according to the intercom apparatus of the first aspect of the present invention, the control circuit controls the number of times the call switch is turned on when the handset of the management control panel or the house information panel is in the hook-off state. Are stored in a built-in memory, a ringing command signal is output to a voice synthesizing circuit when the ringing switch is turned on, and the volume adjusting signal stored in the memory is stored in a volume adjusting circuit. Output, when a call signal from another device is received, a call command signal is output to the voice synthesizing circuit, and a volume control signal stored in the memory is output to the volume control circuit. When the handset is in the hook-off state and the volume is adjusted by pressing the call switch, the volume-adjusted ringing tone is uttered, and the operator checks the ringing tone. It can be, there is an effect that is convenient.

According to the intercom apparatus of the second aspect of the present invention, the volume control circuit is provided between the voice synthesis circuit and the amplifier circuit, and includes a plurality of volume control resistors having different resistance values;
Since it has a switching element provided between each volume control resistor and the ground and turned on by a volume control signal from the control circuit, it can be manufactured inexpensively with a simple configuration, If a number of volume adjusting resistors and switching elements corresponding to the number of adjustments are provided, there is an effect that required stepwise volume adjustment can be easily realized.

According to the intercom apparatus of the third aspect of the present invention, the control circuit has a built-in timer, outputs a calling command signal to the voice synthesizing circuit when receiving a calling signal from another device, and adjusts the volume. Outputs a volume control signal that increases the volume stepwise at predetermined time intervals to the circuit for a certain period of time, so that, for example, when the management control panel receives a call signal from a house information panel or a collective entrance machine, the management is performed. When the call switch of the house information panel or the collective entrance is operated once, the ringing sound generated by the voice uttering means of the control panel for a certain period of time,
At predetermined time intervals, small, medium, and large sounds are automatically generated in a loud and stepwise manner. This has the effect that the manager notices even if the manager is away from the management control panel in the management room and is around.

According to the intercom apparatus of the fourth aspect of the present invention, the control circuit receives the ON signal of the ON operation of at least two keys of the numeric keypad, and enters the adjustment mode when the power is turned on. A tone adjustment signal that gradually increases the sound level in accordance with the number of on-operations in response to the number of on-signals and a tone that is gradually increased in accordance with the number of on-operations of another key in comparison with the previous number. Is stored in a built-in memory, and a call command signal is output to the voice synthesis circuit when the call switch of the collective entrance is turned on, and the volume control signal stored in the memory is sent to the volume control circuit. When a call signal from a house information panel or a control panel other than the adjustment mode is received, a call command signal is output to the voice synthesis circuit and stored in the memory. The volume control signal is output to the volume control circuit, so in the collective entrance machine, after installing the collective entrance machine, operate the numeric keypad when turning on the power, so that the proper There is an effect that the volume can be adjusted to a ring tone or a call tone.

According to the intercom apparatus of claim 5 of the present invention, the sound volume adjusting circuit is provided between the voice synthesizing circuit and the amplifier circuit, and includes a plurality of sound volume adjusting resistors having different resistance values; And a switching element that is provided between the resistor and the ground and is turned on by a volume control signal from the control circuit, so that it can be manufactured at a low cost with a simple configuration, and a number corresponding to the number of required stepwise volume controls If the volume adjusting resistor and the switching element are prepared, the required stepwise volume adjustment can be easily realized.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a configuration of an intercom device of a control panel for management according to Embodiment 1 of the present invention.

FIG. 2 is a system diagram of security equipment and intercom equipment.

FIG. 3 is a schematic front view of the pipe control panel of FIG. 2;

FIG. 4 is a schematic front view of the house information panel of FIG. 2;

FIG. 5 is a schematic front view of the collective entrance machine of FIG. 2;

FIG. 6 is a circuit diagram showing a configuration of an intercom device of a management control panel according to Embodiment 2 of the present invention.

FIG. 7 is a flowchart showing volume control of a ringing tone of the intercom apparatus of the management control panel.

FIG. 8 is a circuit diagram showing a configuration of an intercom apparatus of a collective entrance machine according to Embodiment 3 of the present invention.

[Explanation of symbols]

 SM management control panel J1 to Jn Residential information panel EP Collective entrance machine SPK Speaker (voice generator) 1 Microcomputer (control circuit) 2 Voice synthesis circuit 3 Amplification circuit 4 Volume control circuit

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Takashi Tsuda No. 4-7-3 Kudanminami, Chiyoda-ku, Tokyo Nomi Disaster Prevention Co., Ltd. F-term (reference) 5C087 AA02 AA34 AA38 AA40 AA44 BB03 DD03 DD05 DD25 DD26 DD36 EE05 EE07 EE18 FF01 FF02 FF24 GG17 GG36 GG55 5K027 AA09 FF03 FF29 GG08 HH19 MM00 5K038 AA05 CC13 DD02 DD07 DD16 FF01

Claims (5)

[Claims] 1. A voice synthesis circuit for generating a call voice signal based on a call command signal, an amplifier circuit for amplifying a call voice signal generated by the voice synthesis circuit, and a conversion of the call voice signal amplified by the amplifier circuit to voice A sound generator that generates a call, a volume control circuit that gradually adjusts the level of a calling voice signal created by the voice synthesis circuit based on a volume control signal, and a control unit or a home information panel when the handset is in a hook-off state. Various volume adjustment signals selected in accordance with the number of times the call switch is turned on are stored in a built-in memory, and when the call switch is turned on, a call command signal is output to a voice synthesis circuit and the volume control stored in the memory is output. A signal is output to a volume control circuit, and when a call signal from another device is received, a call command signal is output to a voice synthesis circuit and the volume control stored in the memory is performed. Interphone device characterized by comprising a control circuit which outputs a volume control circuit No.. 2. The volume adjustment circuit is provided between a voice synthesis circuit and an amplification circuit, and is provided between a plurality of volume adjustment resistors having different resistance values, and between each volume adjustment resistor and ground, 2. The intercom apparatus according to claim 1, further comprising: a switching element that is turned on by a volume adjustment signal from a control circuit. 3. The control circuit has a built-in timer, outputs a calling command signal to a voice synthesizing circuit when receiving a calling signal from another device, and outputs a calling command signal to a sound volume adjusting circuit for a predetermined time interval. 2. The intercom apparatus according to claim 1, wherein a volume adjustment signal for increasing the volume stepwise is output every time. 4. A call circuit for receiving a call signal from the control panel for control or the house information panel and transmitting a call signal of the microphone of the collective entrance to the control panel for control or the house information panel, and a call command signal. A voice synthesis circuit that generates a calling voice signal by amplifying the calling voice signal generated by the voice synthesizing circuit and a call signal of the calling circuit; and a voice loudspeaker that converts the amplified calling voice signal into a voice. And a volume control circuit that gradually adjusts the level of the calling voice signal generated by the voice synthesis circuit and the call signal of the call circuit based on the volume control signal, and inputs the number of each room and sets the adjustment mode when the power is turned on. A numeric keypad to be turned on, receiving an ON signal of an ON operation of at least two keys of the numeric keypad, enters an adjustment mode when the power is turned on, and in the adjustment mode, the number of ON operations of one key The tone level is gradually increased in accordance with the number of ON signals, and the tone level is gradually increased in accordance with the number of ON signals of another key. The volume control signal to be reduced is stored in a built-in memory, and a call command signal is output to the voice synthesis circuit when the call switch of the collective entrance is turned on, and the volume control signal stored in the memory is output to the volume control circuit, A control circuit that outputs a call command signal to a voice synthesis circuit when receiving a call signal from a house information panel or a management control panel other than the adjustment mode, and outputs a volume control signal stored in the memory to the volume control circuit. An intercom device comprising: 5. The volume adjustment circuit is provided between a voice synthesis circuit and an amplification circuit, and is provided between a plurality of volume adjustment resistors having different resistance values, and between each volume adjustment resistor and ground. The intercom apparatus according to claim 7, further comprising a switching element that is turned on by a volume adjustment signal from a control circuit.