JP4979439B2 - Housing information board in intercom system - Google Patents

Description

The present invention relates to a housing information board in an intercom system.

  Conventionally, intercom systems are provided in apartment houses such as apartments. This intercom system is composed of a housing information board provided in the dwelling unit, a collective entrance machine provided in the collective entrance, and a manager room master unit and a control device provided in the manager room. Intercom calls can be made between the house information panel provided and the manager's room master unit or the central entrance.

  The intercom call is performed with a manager in the manager's room or a visitor at the collective entrance. Usually, the intercom call cannot be performed between residents in each dwelling unit.

By the way, conventionally, there is known a system in which a house information panel is provided with a telephone function and a PBX (private branch exchange) is provided so that a call can be made even between residents (see, for example, Patent Document 1).
JP-A-11-252262

  In the above-mentioned conventional example, the cost is very high for the equipment, and there is almost no need for a resident to make a call to the residents of all the dwelling units.

  On the other hand, there are cases where family members and close friends may live in different dwelling units in the same apartment, and there is a demand for communication only between specific dwelling units in preparation for this.

The present invention provides an intercom system comprising a house information board provided in a dwelling unit, a collective entrance machine provided at a collective entrance, and a control device that controls interphone calls between the housing information board and the collective entrance machine. It is an object of the present invention to provide an intercom system having a simple system configuration that allows a self-dwelling unit to communicate with a specific dwelling unit.

The present invention includes a housing information board provided in a dwelling unit, a collective entrance machine provided at a collective entrance, and a control device that controls intercom calls between the housing information board and the collective entrance machine. In the intercom system provided, a message storage unit that stores predetermined predetermined message contents and codes, a display unit that displays the message contents stored in the message storage unit, and the display unit The notification unit dwell number is set in the operation unit for selecting the message content displayed in the message, the dwell unit number setting unit for setting the dwell unit number of the notification destination for notifying the message, and the dwell unit number setting unit. Detecting that the self-resident unit number is set in the transmission unit for transmitting a signal indicating that the home unit is in the notification destination and the dwelling unit number setting unit of the notification destination. In the number setting unit, when the dwelling unit number of the notification destination is set, the dwelling unit number registration unit for registering the dwelling unit number of the notification destination, and the dwelling unit of the dwelling unit number registered in the dwelling unit number registration unit, A control unit that transmits a code corresponding to the message content selected by the operation unit, and when the housing information panel of the notification destination residence receives the code, the message content corresponding to the received code It is a house information board in the intercom system characterized by displaying on a display part.

According to the present invention, a housing information panel provided in a dwelling unit, a collective entrance machine provided in a collective entrance, and a control device that controls intercom calls between the housing information panel and the collective entrance machine are provided. In the intercom system, there is an effect that the configuration of the system in which the self dwelling unit can communicate with a specific dwelling unit is simple.

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

  FIG. 1 is a block diagram showing an overview of an intercom system IS1 that is Embodiment 1 of the present invention.

  The intercom system IS1 controls the intercom call between the housing information board JB provided in the dwelling unit, the collective entrance machine 30 provided at the collective entrance, and the housing information board JB and the collective entrance machine 30. And a control device 40. In addition, S0 is an administrator room master unit provided in the management room, has the same function as the house information board JB, and is connected to the control device 40.

  The housing information board JB is a generic name for the housing information board, and the housing information board JB101 is provided for the dwelling unit of the 101st room, and the housing information board JB303 is provided for the dwelling unit of the 303rd room.

  The entrance cordless handset C101 is connected to the house information board JB101, and the entrance cordless handset C303 is connected to the house information board JB303.

  In Example 1, when the dwelling unit number of the other party to be notified is input, it is said that the dwelling unit number of the notification destination is “set”, and the dwelling unit number of the own dwelling unit is input and set in the notification destination. When the partner's dwelling unit number is “set”, the dwelling unit number is “registered”. The message cannot be transmitted in a state where the dwelling unit number is just “set”, but the message can be transmitted in a state where the dwelling unit number is “registered”.

  FIG. 2 is a perspective view showing the housing information board JB.

  As shown in FIG. 2, an operation unit 10, a call button B7, a display unit DP as a display means, and a caution lamp LA1 are provided on the surface of the house information board JB.

  The operation unit 10 is provided with a menu button B1, an up button B2, a down button B3, an enter button B4, a fire button B5, and a recovery button B6.

  FIG. 3 is a block diagram showing a configuration of the housing information board JB.

  The housing information board JB includes an operation unit 10, a message storage unit 11, a dwelling unit number setting unit 12, a dwelling unit number registration unit 13, a control unit 14, a display unit DP, a display control unit 15, and a calling unit 16. A control device side I / F 17, a handset 18, and a handset side I / F 19. The handset 18 may be either a handset system or a hands-free system.

  The message storage unit 11 is a memory that stores codes and message contents in correspondence with each other, and FIG. 4 shows the stored contents of the memory.

  FIG. 4 is a diagram illustrating an example of correspondence between codes and message contents in the first embodiment.

  The dwelling unit number setting unit 12 is a memory that stores and sets a dwelling unit number of a notification destination that notifies a message.

  The dwelling unit number registration unit 13 detects that the dwelling unit number setting detection unit has set a dwelling unit number in the dwelling unit number setting unit 12 that is the notification destination, and notifies the dwelling unit number setting unit 12 of the dwelling unit If the previous dwelling unit number is set, it is a memory for registering the dwelling unit number of the notification destination.

  In other words, the dwelling unit number registration unit 13 detects that the self dwelling unit number is set in the dwelling unit number setting unit 12 as the notification destination, and the dwelling unit number as the notification destination is set in the dwelling unit number setting unit 12 of the self dwelling unit. It is an example of the dwelling unit number registration part which registers the dwelling unit number of the notification destination.

  The control unit 14 transmits a code corresponding to the message content to the dwelling unit with the dwelling unit number registered in the dwelling unit number registration unit 13.

  Further, the control unit 14 is an example of a transmission unit that transmits a signal indicating that the dwelling unit number of the notification destination is set to the dwelling unit number setting unit 12, and from the housing information board side of the notification destination, When a signal indicating that a dwelling unit number has been set is received, it is also an example of a self dwelling unit number setting detection unit that detects that a dwelling unit number has been set in the dwelling unit number setting unit 12 as a notification destination.

  Furthermore, the control part 14 is an example of the transmission part which transmits the signal which consists of the code | cord | chord corresponding to the message content, and address information of a notification origin to the dwelling unit of the dwelling unit number set to the said dwelling unit number setting part 12. There is also an example of a determination unit that determines whether the address information of the signal is a dwelling unit number set in the dwelling unit number setting unit.

  Next, the operation of the above embodiment will be described.

  Below, paying attention to the 101 room and the 303 room as a dwelling unit, the case where a message is transmitted / received between these is demonstrated. First, a case will be described in which the other party's dwelling unit number is mutually set as a notification destination in each of Room 101 and Room 303, and then the message “I have returned home” is transmitted from Room 101.

  FIG. 5 is a flowchart showing an operation of setting and registering a dwelling unit number of a notification destination dwelling unit.

  First, the dwelling unit number of room 303 is set in the dwelling unit number setting unit 12 of the housing information panel JB101 of room 101 as the call destination.

  FIG. 6 is a diagram illustrating a display example of the display unit DP when setting the dwelling unit number of the notification destination dwelling unit.

That is, when the menu button B1 is pressed in S1, the menu screen (FIG. 11 (31)) is displayed on the display unit DP, and when “SETTING” is selected there, the screen moves to a setting screen. Among them, “Pocket Message” (registered trademark) is selected. As shown in FIG. 6 (1), “ringing volume setting”, “brightness adjustment”, and “pocket message” (registered trademark) are displayed on the setting screen of the display unit DP, and among these, move up Press button B2 or down button B3 to select "Pocket Message" (registered trademark) , and press Enter button B4.

  In the following description on the display screen, the description is omitted, but when there are a plurality of items on the screen, the up button B2 or the down button B3 as in the case described with reference to FIG. After the cursor is moved using and a desired item is selected, the determination button B4 is pressed to execute the item. In order to return to the previous screen, the menu button B1 is pressed.

  As shown in FIG. 6 (2), a pocket message screen appears, and “setting and changing notification destination dwelling unit”, “confirming notification destination dwelling unit”, and “erasing notification destination dwelling unit” are displayed. Select “Set and change indigenous units”. In S3, as shown in FIGS. 6 (3) to (5), when the up and down buttons B3 or B3 are operated to move the numbers up and down and the dwelling unit numbers of the notification destination dwelling units are sequentially input, FIG. ), The room 303 of the notification destination dwelling unit is displayed for confirmation. When the determination button B4 is pressed in S3, the dwelling unit number 303 is set, that is, the dwelling unit number 303 is stored in the dwelling unit number setting unit 12. At this time, in S4, a signal indicating that the own dwelling unit has been set in the housing information panel of the 101st room is sent by the transmitting means to the set dwelling unit, that is, the housing information panel JB of the 303rd room. In the housing information panel of room 303, the self-resident's house number setting detecting means detects that the self-resident's house number is set in the setting unit 12 in the housing information board JB101 as the notification destination.

  Note that if a dwelling unit number that is not normally used, such as 000, is entered, a message indicating that it is not set is displayed as shown in FIG. 6 (7).

  Then, in S5, it is checked whether or not they are mutually set in the notification destination house information board JB303. That is, although the dwelling unit number 303 is set as described above in the housing information board JB101, if the dwelling unit number 101 is set in the same way in the housing information board JB303, it is set mutually, and in S6 The other party's dwelling unit number 101 as seen from the notification destination dwelling unit is stored in the dwelling unit number registration unit 13 and is mutually registered.

  In S7, the housing information board JB303 sends to the housing information board JB101 that the dwelling unit number of the notification destination dwelling unit has been set. The control unit 14 of the home information board JB101 detects that the home unit number is set in the dwelling unit number setting unit 12 of the notification destination (room 303), so that the home information board JB101 has its own home unit number registration unit. 13 stores and registers the dwelling unit number 303.

  Next, an operation for checking whether or not the dwelling unit number is registered will be described.

  FIG. 7 is a flowchart illustrating an operation of checking whether the dwelling unit number is registered in the dwelling unit number registration unit 13 in the first embodiment.

  FIG. 8 is a diagram illustrating a display example in the case where the presence / absence of registration of a dwelling unit number is checked.

As shown in FIG. 8 (11), “Pocket message” (registered trademark) is selected from the setting screen, and as shown in FIG. 8 (12), “Confirm notification destination dwelling unit” is selected, and the decision button B4 is selected. Press. At this time, in S11, it is determined whether the dwelling unit number is registered. If the notification destination dwelling unit number is stored in the dwelling unit number registration unit 13, the notification destination dwelling unit number and the fact that the dwelling unit number is registered in S12, as shown in FIG. Is displayed.

  On the other hand, if the dwelling unit number “303” is set in the dwelling unit number setting unit 12, but no dwelling unit is set in the notification destination dwelling unit 303 room, that is, the dwelling unit number is stored in the dwelling unit number registration unit 13. If it is not stored and registered, the notification destination dwelling unit number and the fact that the dwelling unit number is not registered are displayed on the display unit DP as shown in FIG. 8 (14). In addition, if the dwell unit number is not set in the dwell unit number setting part 12, as shown in FIG. 8 (15), the display which recommends setting a notification destination dwell unit number is displayed.

  FIG. 9 is a diagram illustrating a display example when the dwelling unit number is deleted from the dwelling unit number registration unit 13.

As shown in FIG. 9 (21), “Pocket Message” (registered trademark) is selected from the setting screen, and as shown in FIG. 9 (22), from “Pocket Message” (registered trademark) . , “Deletion of notification destination dwelling unit” is selected, and when the enter button B4 is pressed, the notification destination dwelling unit number and the deletion target dwelling unit number are displayed on the display unit DP as shown in FIG. 9 (23). When the determination button B4 is pressed, as shown in FIG. 9 (24), a message indicating that the notification destination dwelling unit 303 has been deleted is displayed.

  At this time, since a signal indicating that the mutual registration state has been canceled is transmitted to the dwelling unit 303, which is a registered destination, the mutual registration state is released in the dwelling unit No. 101, a display indicating that fact is displayed. Is output.

  On the other hand, if the notification destination dwelling unit number is not set, the fact that the notification destination dwelling unit number is not set is displayed on the display unit DP as shown in FIG. 9 (25).

  FIG. 10 is a flowchart showing an operation for sending a message.

  FIG. 11 is a diagram illustrating a display example when a message is transmitted.

  In S21, as shown in FIG. 11 (31), “pocket message” is selected on the menu screen. In S22, as shown in FIG. 11 (32), five message contents are displayed on the display unit DP, and when one of them is selected and the decision button B4 is pressed, the selected message and the notification destination dwelling unit are displayed. The numbers are displayed as shown in FIG. 11 (33). Thereby, in S23, the code of the “message” selected by the control unit 14 and the notification unit dwelling unit number are transmitted to the notification destination dwelling unit. It is displayed on the display unit DP.

  For example, when “returned home” is selected as the “message”, the control unit 14 of the house information board JB101 sends the code “04” corresponding to this message and the dwelling unit number 101 of the notification source to the control device side I / O. The information is transmitted to the house information board JB303 of the notification destination dwelling unit 303 through F17 and the control device 40, and this is displayed on the display unit DP of the notification destination house information board JB303.

  In S24, the control unit 14 of the notification destination house information board JB303 receives the transmission unit dwelling unit number and the code “04”, and the message content corresponding to the code “04” “returns home” from the message storage unit 11. Is read. Then, “Pocket message is being received”, the fact that it has been transmitted from Room 101, and the read message content “I have returned home” are displayed on the display unit DP as shown in FIG. 11 (34). . Here, when the decision button B4 is pressed at the notification destination in S25, a confirmation signal is sent to the notification source Room 101, and “confirmed” is displayed in S26 as shown in FIG. 11 (35). The In this case, in S27, the message content “confirmed in room 303” was displayed on the display unit DP as shown in FIG. 11 (36), and the message content was transmitted to the destination in S27. Can be recognized.

  As shown in FIG. 11 (32), five message contents are displayed, but when the desired message contents are not displayed, by continuously pressing the down movement button B3, the message content shown in FIG. 11 (41) is displayed. The contents of the next page (the following five message contents) are displayed, and one message content is selected from these, and thereafter, the processing shown in FIGS. 11 (33) to (36) is executed. be able to. However, after determining the contents of one message, if the callee's dwelling unit number is not registered in the dwelling unit number registration unit 13, “callee dwelling unit is not registered”, “set dwelling unit number” Please display "as shown in FIG. 11 (42).

  By the way, an emergency may occur, for example, the user of the notification source may feel unwell. That is, when calling a friend or the like to be notified, the physical condition may be deteriorated and the operation may be interrupted while the “pocket message” menu is being operated. In this case, if no input such as selection / determination is made at a predetermined time (for example, 10 seconds) after the operation is interrupted, the control unit 14 sends a message “corresponding to the code 01 as a message notifying the emergency state”. Please come "automatically. This makes it possible to appropriately deal with any emergency situation in the residents.

  According to the above embodiment, a predetermined message content is transmitted with a code corresponding to the message, and the message is transmitted only between specific dwelling units (registered dwelling units) that are mutually set. Sent and received. Thus, since the message content is transmitted by the code, the system configuration is simple.

  Moreover, according to the said Example, since a message is transmitted / received only between the specific dwelling units mutually set (between registered dwelling units), the person who is not acquainted lives by mischief etc. It is possible to prevent a message from being sent from the dwelling unit.

  Furthermore, according to the above-described embodiment, after the notification destination receives the message, the transmission source receives the confirmation signal from the notification destination, so whether or not the message is received at the other party's house information board that is the notification destination. , You can check at the notification source and you don't have to worry about seeing or not seeing the message at the notification destination.

Moreover, although the said Example memorize | stored only one notification destination in the dwelling unit number registration part 13 and registered the notification destination, it memorize | stores in the dwelling unit number registration part 13 about several notification destinations, and registers a notification destination. You may do it.

  In Example 1, the control part 14 transmits the code | cord | chord corresponding to the said message content to the dwelling unit of the dwelling unit number registered into the dwelling unit number registration part 13. FIG.

  In the second embodiment, the control device 40 executes the operation of transmitting the code corresponding to the message content to the dwelling unit having the dwelling unit number registered in the dwelling unit number registration unit without the control unit 14 executing the operation. This is an example.

The effect in the second embodiment is the same as the effect in the first embodiment.

  In the first and second embodiments, the message cannot be transmitted to the notification destination if the notification destination dwelling number is not registered.

  Example 3 is an example in which a desired message is transmitted to the notification destination even if the notification destination dwelling unit number is not registered (even if the notification source dwelling unit number is not set in the notification destination housing information panel JB). is there. Further, in the third embodiment, in the notification destination house information board JB, the transmission unit dwell number that can display the message content is stored in advance, and only the reception from the stored dwell unit number is displayed on the display unit DP. In this embodiment, a message received from other than the stored house number of the transmission source is not displayed on the display unit DP. As a result, it is possible to prevent unwanted messages from being received.

  In the third embodiment, other configurations and operations are the same as those in the first and second embodiments.

Other effects in the third embodiment are the same as those in the first and second embodiments.

  Example 4 is an example in which a desired message is transmitted to the notification destination even if the notification destination unit number is not registered (even if the notification source unit number is not set in the notification destination house information panel JB). is there.

  In the fourth embodiment, since the received message and the notification source dwelling unit number are displayed together in the notification destination house information board JB, the message received from other than the interested notification source may be ignored.

In this case, since the message code is transmitted, the device configuration on the transmission side is simple, and the device configuration on the reception side is also simple.

  In Example 1, a dwelling unit number registration unit was provided, and when both dwelling unit numbers were set in the dwelling unit number setting unit in both the own dwelling unit and the other party dwelling unit to be notified, they were mutually registered as notification partners However, this dwelling unit number registration unit may be omitted, and the control unit may confirm whether or not mutual registration is performed as follows.

  FIG. 12 is a diagram illustrating the exchange of signals performed by housing information boards that perform notification in the fifth embodiment of the present invention.

  In the fifth embodiment, first, in S30, the dwelling unit number “303” of the other party to be notified is set and recorded in the dwelling unit number setting unit 12 of the house information board JB101. This setting is performed in the same procedure as in FIG. 6, but in this embodiment, since there is no registration unit, this “setting” operation may be registration of a dwelling unit number. At this stage, it is assumed that the housing information board JB303 is in an unregistered state in which the dwelling unit “101” is not set in the setting unit 12 (S31).

  Here, the pocket message is transmitted in the same procedure as in FIGS. 10 and 11 (S32). In this case, from the housing information board JB101, the dwelling unit number (101) of the notification source and the message code are transmitted. At this time, the control unit 14 of the home information board JB303 of the notification destination determines whether the notification source address information (101) of the transmitted signal is a signal from the dwelling unit recorded in the dwelling unit number setting unit 12. Determine. In other words, based on the address information of the transmission source given to the transmission signal, it is determined from which dwelling unit the signal is from which dwelling unit is the dwelling unit number registered in the dwelling unit number setting unit 12 Determine if.

  If it is a signal from a dwelling unit that is not registered in dwelling unit number setting unit 12, a signal indicating that it is not registered is returned to home information board JB101 of the transmission source. Further, the message is not displayed on the house information board JB303 (S33).

  In S34, the housing information board JB101 receives the unregistered signal, and displays on the display unit DP that it is “not registered at the notification destination”. That is, as shown in FIG. 8 (14), it is displayed that the dwelling units are not mutually registered.

  Thereafter, in S35, the other party dwelling unit “101” is set and registered in the setting unit 12 also in the housing information board JB303. In step S36, the message code is transmitted again from the house information board JB101 to JB303. In S37, the house information board JB303 receives the message and displays the message on the display unit DP. This is the same as FIG. 11 (34). At this time, the dwelling unit 303 returns a registration signal indicating that “101” has been registered in the dwelling unit number setting unit 12 to the housing information board JB of the dwelling unit 101. The house information board JB101 receives the registration signal (S38).

  Then, in the same manner as shown in FIGS. 11 (35) and 11 (36), when the confirmation button B4 is pressed on the house information board JB303 and the message is confirmed in S39, a confirmation signal is transmitted to the house information board JB101. The housing information board JB101 receives a confirmation signal in S40 and displays that the message has been confirmed.

In the first to fifth embodiments, after the code corresponding to the message is received, the display unit outputs the message to the display unit. For example, the voice notification unit includes a voice synthesis IC that stores the voice corresponding to the message. And a voice corresponding to the message may be output from the voice notification unit when the code is received. That is, you may make it comprise an alerting | reporting means with a voice alerting | reporting part and a display means.

It is a block diagram which shows the outline | summary of intercom system IS1 which is Example 1 of this invention. It is a perspective view which shows the housing information board JB. It is a block diagram which shows the structure of the housing information board JB. In Example 1, it is a figure which shows the example of a response | compatibility with a code | cord | chord and the message content. It is a flowchart which shows the operation | movement which sets the dwelling unit number of a notification destination dwelling unit. It is a figure which shows the example of a display of display part DP in the case of setting the dwelling unit number of a notification destination dwelling unit. In Example 1, it is a flowchart which shows the operation | movement which investigates whether the dwelling unit number is registered into the dwelling unit number registration part 13. FIG. It is a figure which shows the example of a display in the case of investigating the presence or absence of registration of a dwelling unit number. It is a figure which shows the example of a display in the case of deleting a house number from the dwelling unit number registration part 13. FIG. It is a flowchart which shows the operation | movement which sends a message. It is a figure which shows the example of a display in the case of transmitting a message. In Example 5 of this invention, it is a figure which shows the exchange of the signal which the housing information boards which perform notification perform.

Explanation of symbols

IS1 ... Intercom system,
JB, JB101, JB303 ... Housing information board,
10 ... operation part,
B1 ... Menu button,
B2 ... Up movement button,
B3 ... Down movement button,
B4 ... Up movement button,
B5 ... Fire button,
B6 ... Recovery button,
B7 ... Call button,
LA1 ... Attention lamp
DP ... Display section,
11 ... Message storage unit,
12 ... Dwelling unit number setting section,
13 ... Dwelling unit number registration department,
14 ... control unit,
C101, C303 ... Entrance cordless handset,
30 ... Collective entrance machine,
40. Control device,
50 ... Administrator's room master unit,
L: Signal line.

Claims (5)

An intercom system comprising a housing information board provided in a dwelling unit, a collective entrance machine provided at a collective entrance, and a control device for controlling intercom calls between the housing information board and the collective entrance machine In
A message storage unit for storing predetermined predetermined message contents and codes ;
A display unit for displaying the message content stored in the message storage unit;
An operation unit for selecting the message content displayed on the display unit;
A dwelling unit number setting unit that sets a dwelling unit number of the notification destination that notifies the message;
A transmission means for transmitting a signal indicating that the notification unit dwelling unit number is set to the dwelling unit number setting unit;
It is detected that the self-dwelling unit number is set in the dwelling unit number setting unit of the notification destination, and the dwelling unit number of the notification destination is set in the dwelling unit number setting unit of the self-dwelling unit. A unit number registration unit for registering a unit number;
A control unit for transmitting a code corresponding to the message content selected by the operation unit to the dwelling unit of the dwelling unit number registered in the dwelling unit number registration unit;
I have a,
When the housing information board of the notification destination residence receives the code, the message information corresponding to the received code is displayed on the display unit . An intercom system comprising a housing information board provided in a dwelling unit, a collective entrance machine provided at a collective entrance, and a control device for controlling intercom calls between the housing information board and the collective entrance machine In
A message storage unit for storing predetermined predetermined message contents and codes ;
A display unit for displaying the message content stored in the message storage unit;
An operation unit for selecting the message content displayed on the display unit;
A dwelling unit number setting unit that sets a dwelling unit number of the notification destination that notifies the message;
A transmission unit that transmits a signal composed of a code corresponding to the message content selected by the operation unit and address information of a notification source to the dwelling unit of the dwelling unit number set in the dwelling unit number setting unit;
A determination unit that determines whether the address information of the signal is a dwelling unit number set in the dwelling unit number setting unit;
An informing means for informing a message content corresponding to the code when the signal notification source is a dwelling unit number set in the dwelling unit number setting unit;
A housing information board in an intercom system. In claim 1 or claim 2 ,
When a confirmation operation indicating that the message has been received and the message has been confirmed is executed via the operation of the housing information panel in the notification destination residence unit , a signal indicating that the confirmation operation has been performed is The house information board in the intercom system, wherein the house information board transmitted to the house information board has means for displaying that the confirmation operation has been performed . In claim 1 or claim 2 ,
The control unit is means for transmitting a message for notifying an emergency state when the user does not perform any operation for a predetermined time in the course of an operation of transmitting the message content. Board. In claim 1 or claim 2,
When the message content to be transmitted is selected from the plurality of message contents displayed on the display unit and the confirmation operation of the notification destination unit is performed, if the notification destination unit is stored in the unit number registration unit, the notification destination unit A house information board in an intercom system , wherein a number and a notification that the notification destination dwelling number is registered are displayed on the display unit .

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