JP4651028B2 - Intercom system - Google Patents

Description

The present invention relates to an intercom system.

  Conventionally, intercoms are provided in apartment houses such as apartments and detached houses. For example, in a collective housing, a collective entrance machine is provided at the collective entrance, and an interphone master is provided in the living room, so that a telephone call can be made between the collective entrance and the living room via an interphone.

  Further, in a detached house, a door phone is provided outside the entrance, and an interphone master unit is provided inside the residence, so that a call can be made between the outside of the entrance and the residence via the interphone.

The ringing sound between the call by the family and the call by the visitor so that it can be identified whether the call is by the family or the call by a visitor such as push-selling when the call is from the central entrance or door phone An intercom that changes the frequency is known (for example, see References 1 and 2).
Japanese Patent Laid-Open No. 3-101562 Japanese Utility Model Publication No. 6-48269

  The conventional intercom includes a hidden call button that is used exclusively by family members, in addition to the normal call button.

  In this conventional intercom, since it is necessary to separately provide a hidden call button that is used exclusively by family members and the like, there is a problem that the number of parts for that purpose increases.

  Further, in the above conventional example, the hidden call button is arranged in an inconspicuous position so that only the family can use it, but there is a problem that a person other than the family may operate.

The present invention comprises an entrance unit having a call button and an interphone master unit that outputs a ring tone when calling from the entrance unit, and changes the ring tone between a call by a family and a call by a visitor. An object of the present invention is to provide an interphone that does not require an increase in the number of parts, such as a hidden call button.

The present invention relates to a collective entrance machine having a numeric keypad for designating a dwelling unit number, a special key, and a call button, an intercom base unit that outputs a ringing tone when calling from the collective entrance machine, and the intercom base unit and the collective entrance. In the intercom system comprising a control device for controlling a call with a machine, the control device detects that the special key has been operated when calling from the collective entrance machine, and detects the above when calling from the collective entrance machine. When the special key is operated, it has a special key operation detecting means for outputting a special key operation signal. When the interphone master unit receives the special key operation signal, the second call is different from the normal ringing tone. An intercom system comprising second ringing tone output means for outputting a sound.

According to the present invention, an entrance unit having a call button and an interphone master unit that outputs a ringing tone when calling from the entrance unit, a ringing tone between a call by a family and a call by a visitor. In the intercom that can change the number of parts, there is an effect that it is not necessary to increase the number of parts unlike the hidden call button.

  The best mode for carrying out the invention is the following examples.

  FIG. 1 is a block diagram showing an intercom system 100 that is Embodiment 1 of the present invention.

  The intercom system 100 includes a front door device 10, an interphone master device 20, and a telephone line L1.

  The entrance machine 10 includes a call button 11, a call circuit 12, a call circuit 13, a microphone MC1, and a speaker SP1.

  The intercom master unit 20 includes a control unit 21, a call detection circuit 22, a ringing tone generation unit 23, a timer 24, an operation unit 25, a call circuit 26, a speaker SP2, a microphone MC2, and a switch SW1. Have.

  The control unit 21 controls the entire intercom base unit 20. The call detection circuit 22 is a circuit that detects that the call button 11 of the entrance machine 10 is operated.

  The ringing tone generation unit 23 is an example of a ringing tone generation unit that outputs a plurality of types of ringing sounds, and generates sounds such as “ping pong”, “pi, pi, pi”. Usually (when a visitor other than the family presses the call button 11), a sound of “ping pong” is generated.

  The timer 24 measures an operation time that is a time during which the call button 11 of the entrance machine 10 is operated.

  The control unit 21 is an example of a ringing tone changing unit that changes the ringing tone generated by the ringing tone generating unit 23 according to the time measured by the timer 24. When the timer 24 measures the ringing time even a little, “Ping Pong When the timer 24 measures, for example, 1.5 seconds or more as the calling time, a signal corresponding to the sound “Pi, Phi, Phi” is generated. Generated in the unit 23.

  The operation unit 25 is operated when a sound of “ping pong” or “pi, pi, pi” is generated from the speaker SP2 by the control of the ring tone generation unit 23, so that the switch SW1 is connected from the terminal a. Switching to the terminal b, it is possible to talk with a person on the entrance machine 10 side using the call circuit 26, the speaker SP2, and the microphone MC2.

  Next, the operation of the intercom system 100 will be described.

  First, when the family presses the call button 11 of the entrance machine 10, it is assumed that the family has promised to press the call button 11 continuously for 1.5 seconds or more.

  Here, when the call button 11 of the entrance machine 10 is pressed, the voltage of the signal line L1 connecting the entrance machine 10 and the interphone master unit 20 decreases from 5V to 1V, for example. When the call detection circuit 22 detects this drop in voltage, the speaker SP2 outputs a ringing tone “ping pong” via the ringing tone generator 23.

  After the call detection circuit 22 detects a decrease in the voltage of the call line L1, the control unit 21 activates the timer 24 and measures the operation time of the call button 11. Here, a person other than the family such as a courier company or the like usually presses the call button 11 only for a moment. As a result, the time during which the voltage of the telephone line L1 is decreasing is instantaneous, and the timer 24 immediately stops its measurement.

  FIG. 2 is a time chart illustrating the operation in the first embodiment.

  When the call button 11 is pressed, as shown in FIG. 2 (1), a ringing sound “ping pong” is output from the speaker SP2.

  On the other hand, when a resident such as a family member presses the call button 11, a long press operation is performed. For example, the call button 11 is continuously pressed for 1.5 seconds or more. As a result, the timer 24 measures the time during which the voltage of the telephone line L1 is decreasing, and if this measured value is 1.5 seconds or longer, as shown in FIG. 2 (2) after 1.5 seconds. In addition, the speaker SP2 outputs a ringing tone “beep” through the ringing tone generator 23.

  In this way, when the call button 11 is operated for a long time, the ringing sound “Pippipippi” is output from the speaker SP2 following “Ping Pong”. It can be recognized that the person who operated is a family.

  In the first embodiment, an entrance machine having a call button and an interphone master unit that outputs a ringing tone when calling from the entrance machine, a ringing tone is generated between a call by a family and a call by a visitor. In the intercom system that can be changed, it is not necessary to increase the number of parts as in the case of the hidden call button.

  In the first embodiment, the ringing tone is changed according to the operation time of the calling button, but three or more ringing sounds may be used. Alternatively, the time during which the call button is operated may be measured steplessly, and different ringing sounds may be output according to the length of the measured operation time. In other words, according to the operation time of the call button, for example, the duty ratio of the ringing tone is changed, and the longer the operation time, the longer the interval between the “pips” “pips” and the ringing sound is output. Also good.

Further, in the first embodiment, when the family comes home, a ringing sound “Pippipipi” is output after “Ping Pong”. However, if the operation time of the call button is detected and this operation time is within 1 second, “ If “ping pong” is output and the operation time is 1 second or longer, a ringing sound “beep” may be output from the beginning.

  FIG. 3 is a block diagram showing an intercom system 200 that is Embodiment 2 of the present invention.

  The intercom system 200 includes a collective entrance 30, a call control device 40, an interphone master 50, and a call line L <b> 2.

  The collective entrance machine 30 includes a numeric keypad 31, a display unit 32, a call button 33, and a call unit 34.

  The numeric keypad 31 has 0 to 9 keys and at least one of # key and * key. The # key and * key are called special keys. The display unit 32 displays what key is pressed when the numeric key 31 is pressed.

  When the call button 33 is pressed after the dwell unit number pressed using the numeric keypad 31, the intercom base unit 50 corresponding to the pressed dwelling unit is called. The call unit 34 makes a call with the called intercom base unit 50. In FIG. 3, the speaker and the microphone are not shown in the collective entrance machine 30 and the intercom master machine 50.

  The call control device 40 includes a determination unit 41 and a signal transmission unit 42.

  The determination unit 41 is a means for detecting that a special key has been operated when calling from the collective entrance 30. When the determination unit 41 detects that the special key has been operated at the time of calling, the signal sending unit 42 outputs a special key operation signal indicating that the special key has been operated at the time of calling.

  That is, the determination unit 41 and the signal transmission unit 42 detect that the special key is operated when calling from the collective entrance machine, and when the special key is operated when calling from the collective entrance machine, It is an example of the special key operation detection means which outputs a key operation signal.

  The intercom base unit 50 includes a signal receiving unit 51 and a ringing tone generating unit 52.

  The signal receiving unit 51 receives a special key operation signal. The ringing tone generating unit 52 is an example of a second ringing tone output unit that outputs a second ringing tone different from a normal ringing tone when the signal receiving unit 51 receives a special key operation signal.

  Next, the operation of the intercom system 200 will be described.

  In the collective entrance 30, after designating the dwelling unit number to be called using the numeric keypad 31, when the call button 11 is pressed, the intercom master unit 50 of the desired dwelling unit is connected to the interphone master unit 50 of the desired dwelling unit via the call control device 40. A call signal is sent through the signal line. In intercom base unit 50, the speaker outputs a ringing tone (for example, “ping pong”) in response to the reception of the calling signal.

  Here, when a family operates the collective entrance machine 30, it is assumed that a promise is made that a special key (# key or * key) is pressed after designating a dwelling unit number with the numeric keypad 31. Note that a special key (# key or * key) is arranged in the normal entrance hall 30 together with the numeric keys 1 to 0.

  When the family operates the collective entrance machine 30, after designating the dwelling unit number with the numeric keypad 31, the special key (# key or * key) is pressed and then the call button is pressed. The call control device 40 can determine whether the signal sent from the collective entrance 30 is a normal call signal or a call signal when a special key is pressed. If so, a special key operation signal indicating that the special key is being pressed is sent to the intercom base unit 50 (a calling signal for the family different from the normal calling signal).

  When receiving the special key operation signal, the intercom base unit 50 side outputs a ringing tone (for example, “beep”) different from the normal ringing tone “ping pong”.

  In this way, when a special key is pressed when the call button 33 is pressed, an unusual ringing tone is output. Therefore, the person who responds at the intercom base unit 50 is the person who operates the collective entrance 30 is a family member. It can be easily recognized.

  According to the second embodiment, it is not necessary to increase the number of parts as in the hidden call button in the interphone that can change the ringing sound between the call by the family and the call by the visitor.

  In addition, when pressing the dwell unit number, special key, and call button, it may be predetermined to press in the order of dwell unit number, special key, and call button. It may be determined in advance. Further, it may be determined in advance that a special key is pressed while a multi-digit dwell unit number is being pressed, and a call button is pressed after all the dwell unit numbers have been pressed.

Further, the order of pressing the dwelling unit number and the special key is not limited. When the dwelling unit number and the special key are pressed and then the call button is pressed, a special key operation signal is output and the collective entrance 30 is used. You may make it judge that the person who is operating is a family.

  The third embodiment of the present invention is an embodiment in which the interphone master unit 50 detects that a special key has been operated in the second embodiment.

  That is, in the third embodiment, the intercom base unit 50 includes special key operation detection means and second ringing tone output means.

  The special key operation detection means is means for detecting that the special key has been operated when calling from the collective entrance machine 30.

  The second ringing tone output unit is a unit that outputs a second ringing tone different from the normal ringing tone when the special key operation detecting unit detects that the special key has been operated.

  Next, Example 3 will be specifically described.

  The collective entrance machine 30 outputs different calling signals depending on whether or not a special key is operated at the time of calling. That is, if it is a normal calling operation of the dwelling unit number + calling button, a normal calling signal is output, and if a special key is added to the dwelling unit number and the calling button is operated, a calling signal for the family is output.

  The signal receiving unit 51 of the intercom base unit 50 can identify the difference between these calling signals, and outputs different ringing sounds from the ringing tone generating unit 52 according to each signal.

In each of the embodiments of the present invention, the buzzer sound such as “ping pong” is described as an example of the ringing sound. In this case, when a call signal for a family is received, a voice such as “family has returned home” may be output.

1 is a block diagram illustrating an intercom system 100 that is Embodiment 1 of the present invention. FIG. 3 is a time chart illustrating an operation in the first embodiment. It is a block diagram which shows the intercom system 200 which is Example 2 of this invention.

Explanation of symbols

100 ... Intercom system,
10 ... Entrance machine,
11 ... Call button,
12: Calling circuit,
20 ... Interphone master unit,
21 ... control unit,
22: Call detection circuit,
23: Ringing tone generator,
24 ... Timer,
25 ... operation unit,
200 ... Intercom system,
30 ... Collective entrance machine,
31 ... Numpad,
33 ... Call button,
40. Call control device,
41 ... discriminating part,
42 ... signal transmission part,
50 ... Interphone master unit,
51 ... Signal receiver,
52: A ringing tone generator.

Claims (3)

A collective entrance machine having a numeric keypad for designating a dwelling unit number, a special key, and a call button, an interphone master unit that outputs a ringing tone when calling from the collective entrance machine, and a call between the intercom master unit and the collective entrance machine In an intercom system comprising a control device for controlling
The control device detects that the special key has been operated during a call from the collective entrance machine, and outputs a special key operation signal when the special key is operated during a call from the collective entrance machine. Having key operation detection means;
The interphone base unit has a second ringing tone output means for outputting a second ringing tone different from a normal ringing tone when receiving the special key operation signal . A collective entrance machine having a numeric keypad for designating a dwelling unit number, a special key, and a call button, an interphone master unit that outputs a ringing tone when calling from the collective entrance machine, and a call between the intercom master unit and the collective entrance machine In an intercom system comprising a control device for controlling
Special key operation detecting means for detecting that the special key has been operated when calling from the collective entrance;
Second ringing sound output means for outputting a second ringing tone different from a normal ringing tone when the special key operation detecting means detects that the special key has been operated;
The intercom base unit has an intercom system. In claim 1 or claim 2,
The interphone system , wherein the special key is a # key or an * key .

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