JP2019012975A - Intercom master unit, interphone system, connection device, and program - Google Patents

Abstract

To make it easier to have the function expandability while suppressing an increase in the number of wirings.SOLUTION: An intercom master unit 1 includes a first communication unit 11, a second communication unit 12, a switching unit 135. The first communication unit 11 can transmit a voice signal including voice information received from an interphone slave unit (7) via a first route. The second communication unit 12 can transmit a voice signal via a second route different from the first route. The switching unit 135 switches the source of the voice signal to either the first communication unit 11 or the second communication unit 12 or both of the first communication unit 11 and the second communication unit 12.SELECTED DRAWING: Figure 1

Description

  The present disclosure generally relates to an interphone base unit, an interphone system, a connection device, and a program, and more particularly, to an interphone base unit, an interphone system, a connection device, and a program that can transmit audio information received from an interphone handset.

  Conventionally, a doorphone master unit (interphone master unit) capable of transmitting voice information received from a doorphone slave unit (interphone slave unit) is known, and is disclosed in Patent Document 1, for example. The intercom system described in Patent Literature 1 includes a door phone master unit, a door phone slave unit, and a sub master unit. The door phone master unit is installed in a house and communicates with a door phone slave unit. The secondary master unit is connected to the doorphone master unit via a transmission line. The door phone master unit has a function of relaying communication between the door phone slave unit and the sub master unit.

JP 2014-68147 A

  However, in the intercom system described in Patent Literature 1, when a new communication function is added to the interphone master unit, wiring corresponding to the new communication function is required separately from the transmission line, and the number of wirings increases. There was a problem.

  The present disclosure has been made in view of the above points, and an object of the present disclosure is to provide an interphone base unit, an interphone system, a connected device, and a program that can easily provide function expandability while suppressing an increase in the number of wires.

  The intercom base unit according to an aspect of the present disclosure includes a first communication unit, a second communication unit, and a switching unit. The first communication unit can transmit an audio signal including audio information received from the intercom handset to the connected device via the first path. The second communication unit can transmit the audio signal to the connection device via a second path different from the first path. The switching unit switches the transmission source of the audio signal to the connection device to either the first communication unit, the second communication unit, or both the first communication unit and the second communication unit.

  An intercom system according to an aspect of the present disclosure includes the interphone master device described above and at least one of a first sub master device and a second sub master device. The first sub-master device can communicate with the first communication unit. The second sub-master device is the connection device and can communicate with both the first communication unit and the second communication unit.

  A connection device according to an aspect of the present disclosure receives the audio signal from the interphone parent device.

  A program according to an aspect of the present disclosure is a program for controlling an interphone master unit. The intercom base unit includes a first communication unit and a second communication unit. The first communication unit can transmit an audio signal including audio information received from the intercom handset to the connected device via the first path. The second communication unit can transmit the audio signal to the connection device via a second path different from the first path. This program is a program for causing a computer system to realize a switching function. The switching function is a function that switches the transmission source of the audio signal to the connected device to either the first communication unit, the second communication unit, or both the first communication unit and the second communication unit. is there.

  The present disclosure has an advantage that it is easy to provide function expandability while suppressing an increase in the number of wirings.

FIG. 1 is a block diagram illustrating an overview of an interphone master device and an interphone system according to an embodiment of the present disclosure. FIG. 2A is a schematic diagram when the interphone system is the same and the state of the repeater is normal. FIG. 2B is a schematic diagram when the interphone system is the same and the state of the repeater is abnormal. FIG. 3 is a flowchart showing an example of the operation of the interphone master unit of the above. FIG. 4A is a schematic diagram of an intercom system of a first comparative example. FIG. 4B is a schematic diagram of the intercom system of the second comparative example. FIG. 5A is a block diagram of an intercom base device according to a first modification of an embodiment of the present disclosure. FIG. 5B is a block diagram of an intercom base device according to a second modification example of an embodiment of the present disclosure. FIG. 6 is a schematic diagram of an intercom system according to another modification of the embodiment of the present disclosure.

(1) Overview Hereinafter, an overview of the interphone base unit 1 and the interphone system 100 according to the embodiment will be described with reference to FIGS. 1 to 2B. In FIG. 2B, the repeater 4 to which dot hatching is applied indicates that the state of the repeater 4 is abnormal (for example, failure or temporary connection failure). The intercom system 100 of the present embodiment is an intercom system for collective housing. In addition, the intercom system 100 of the present embodiment has a new communication function with the external network N1 using the repeater (router) 4 in addition to the call function between the resident and the visitor, which is the main function of the intercom system. As a communication function.

  The intercom system 100 includes an interphone master unit 1, a first sub master unit 2, a second sub master unit 3, and two interphone slave units 7. Interphone base unit 1, first sub-base unit 2, and second sub-base unit 3 are all installed in the dwelling unit of the apartment house. One intercom handset 7 of the two interphone handsets 7 is a lobby interphone B1 installed at the common entrance of the apartment house. The other intercom handset 7 is a door phone sub-unit B2 installed outside the dwelling unit of the apartment house (for example, the outer wall near the entrance of the dwelling unit).

  The first sub-master 2 and the second sub-master 3 are both installed in a room different from the room where the interphone master 1 is installed, such as a bedroom or a study. The first sub-master device 2 can communicate with a first communication unit 11 (described later). In the present embodiment, the first sub-master 2 is a call sub-master that can communicate with the interphone slave 7 via the interphone master 1. The second sub-master device 3 is the connection device 10 and can communicate with both the first communication unit 11 and the second communication unit 12 (described later). The second secondary master unit 3 is a secondary secondary unit with a monitor that can communicate with the interphone slave unit 7 via the interphone master unit 1 and can display an image from the interphone slave unit 7.

  The intercom base unit 1 is installed in, for example, a living room or a kitchen. The intercom base unit 1 includes a first communication unit 11, a second communication unit 12, and a switching unit 135. The 1st communication part 11 can transmit audio | voice signal A1 containing the audio | voice information received from the intercom subunit | mobile_unit 7 via the 1st path | route P1 to the connection apparatus 10 (2nd sub-master | base station 3). In the present embodiment, the first path P1 is a communication routed between the interphone master unit 1 and the first sub master unit 2, and between the first sub master unit 2 and the second sub master unit 3. A signal path through the cable C1. The communication cable C1 is, for example, a two-wire cable having fire resistance and made of a twisted pair wire or the like. In the present embodiment, the signal transmitted from the intercom base unit 1 to the connection device 10 via the communication cable C1 is an analog signal.

  The second communication unit 12 can transmit the audio signal A1 to the connection device 10 via the second path P2 different from the first path P1. In the present embodiment, the second path P2 is a communication cable wired between the repeater 4, the interphone master unit 1 and the repeater 4, and between the repeater 4 and the second sub-master unit 3. And a signal path through C2. The repeater 4 is connected between the second communication unit 12 and the connection device 10. The communication cable C2 is a LAN (Local Area Network) cable, for example. In the present embodiment, the signal transmitted from the intercom base unit 1 to the connection device 10 via the communication cable C2 is a digital signal.

  The switching unit 135 switches the transmission source of the audio signal A1 to the connected device 10 to either the first communication unit 11, the second communication unit 12, or both the first communication unit 11 and the second communication unit 12. In the present embodiment, when the state of the repeater 4 is normal, the transmission source of the audio signal A1 for the connection device 10 is the second communication unit 12. Therefore, the audio signal A1 is transmitted to the connection device 10 via the communication cable C2 (second path P2) (see FIG. 2A). On the other hand, when the state of the repeater 4 becomes abnormal, the switching unit 135 switches the transmission source of the audio signal A1 for the connected device 10 from the second communication unit 12 to the first communication unit 11. Therefore, the audio signal A1 is transmitted to the connection device 10 via the communication cable C1 (first path P1) (see FIG. 2B).

  As described above, in the present embodiment, the transmission path of the audio signal A1 to the connection device 10 can be switched. For this reason, in this embodiment, even when a new communication function is expanded using an existing wiring without adding a wiring corresponding to the new communication function, an audio signal from the interphone slave unit 7 to the connection device 10 is used. It is easy to secure the transmission function of A1. That is, the present embodiment has an advantage that it is easy to provide function expandability while suppressing an increase in the number of wirings.

(2) Details Hereinafter, the interphone master unit 1 and the interphone system 100 according to the present embodiment will be described in detail with reference to FIGS. As described above, the intercom system 100 according to the present embodiment includes the interphone master unit 1, the first sub master unit 2, the second sub master unit 3 (connection device 10), and the lobby interphone as the interphone slave unit 7. B1 and a door phone sub-unit B2. In addition, the intercom system 100 of the present embodiment further includes a notification device B3.

  The notification device B3 is, for example, a fire alarm device, a gas leak alarm device, a security sensor, or the like, and is a device that notifies the occurrence of a specific event (for example, fire, gas leak, suspicious person intrusion, etc.). The notification device B3 is installed, for example, in a dwelling unit of an apartment house. When a specific event occurs, the notification device B3 outputs notification information including the fact that the specific event has occurred to the intercom base unit 1.

  The intercom base unit 1 includes a first communication unit 11, a second communication unit 12, a control unit 13, a first communication I / F (interface) 141, a second communication I / F 142, and a third communication I / F. F143, the reproducing part 15, and the display part 16 are provided.

  The first communication unit 11 is an analog communication module for communicating with the first secondary master unit 2 and the second secondary master unit 3 via the first path P1 (communication cable C1). As described above, the first communication unit 11 is configured to be able to transmit the audio signal A1. Moreover, the 1st communication part 11 is further comprised so that notification signal A4 containing notification information other than audio | voice signal A1 can be transmitted. In the present embodiment, the first communication unit 11 transmits an audio signal A1 and a notification signal A4 to the first secondary master unit 2, and a notification signal A4 to the second secondary master unit 3. Moreover, the 1st communication part 11 is comprised so that reception of the audio | voice signal transmitted from the 1st subparent machine 2 via the 1st path | route P1 is possible. That is, the resident can talk with the visitor via the interphone slave unit 7, the interphone master unit 1, and the first sub-master unit 2.

  The second communication unit 12 is a digital communication module for communicating with the second secondary master unit 3 via the second path P2 (the communication cable C2 and the repeater 4). As described above, the second communication unit 12 is configured to be able to transmit the audio signal A1. The second communication unit 12 is configured to be able to further transmit the video signal A2 and the network signal A3 in addition to the audio signal A1. The video signal A <b> 2 includes video information received from the intercom handset 7. The network signal A3 includes network information to be sent to an external network N1 such as the Internet. The network information includes, for example, audio information and video information received from the interphone slave unit 7. The network information may include, for example, audio information and video information recorded in the intercom base unit 1 when no resident is present.

  In the present embodiment, the second communication unit 12 transmits an audio signal A1 and a video signal A2 to the second secondary master unit 3, and a network signal A3 to the external network N1. The network signal A3 is transmitted to the server 5 (see FIG. 1) via the external network N1. Therefore, the resident can check the audio information and the video information received by the intercom base unit 1 by accessing the server 5 when going out. Moreover, the 2nd communication part 12 is comprised so that the audio | voice signal A1 transmitted from the 2nd subparent machine 3 via the 2nd path | route P2 is receivable. That is, the resident can talk to the visitor while watching the video of the visitor via the interphone slave unit 7, the interphone master unit 1, and the second secondary master unit 3.

  In the present embodiment, the second communication unit 12 is configured such that the repeater 4 is wirelessly connected to a mobile terminal 6 (for example, a smartphone) by a wireless communication method such as Wi-Fi (registered trademark). (See FIG. 1). Accordingly, a user (here, a resident) having the mobile terminal 6 makes a call with the visitor while watching the video of the visitor via the interphone handset 7, the interphone base unit 1, the repeater 4, and the mobile terminal 6. Is possible.

  The control unit 13 is constituted by a microcomputer having a processor and a memory as main components. The same applies to the control unit 22 of the first sub-master device 2 and the control unit 33 of the second sub-master device 3 described later. That is, the control unit 13 (control units 22 and 33) is realized by a computer system having a processor and a memory, and the computer system executes the appropriate program so that the computer system can control the control unit 13 (control units 22 and 33). ). The program may be recorded in advance in a memory, or may be provided by being recorded through a telecommunication line such as the Internet or a recording medium such as a memory card. The control unit 13 includes an audio processing unit 131, a video processing unit 132, a network processing unit 133, a detection unit 134, and a switching unit 135. Further, the control unit 13 has a function of controlling the first communication I / F 141, the second communication I / F 142, the third communication I / F 143, the playback unit 15, and the display unit 16.

  The voice processing unit 131 receives voice information received by the first communication I / F 141 or the second communication I / F 142 (that is, voice information received by the intercom handset 7) and notification information received by the third communication I / F 143. Process. For example, the voice processing unit 131 performs processing such as noise removal and echo removal on the voice information received by the first communication I / F 141 or the second communication I / F 142. The audio information processed by the audio processing unit 131 is transmitted from the first communication unit 11 or the second communication unit 12 as an audio signal A1. In other words, the audio signal A1 includes audio information received from the interphone slave unit 7. The notification information processed by the voice processing unit 131 is transmitted from the first communication unit 11 as a notification signal A4. In other words, the notification signal A4 includes the notification information received from the notification device B3.

  The video processing unit 132 processes video information received by the first communication I / F 141 or the second communication I / F 142 (that is, video information received by the intercom slave device 7). For example, the video processing unit 132 performs processing such as distortion correction, enlargement / reduction, and trimming on the video information received by the first communication I / F 141 or the second communication I / F 142. The video information processed by the video processing unit 132 is transmitted from the second communication unit 12 as a video signal A2. In other words, the video signal A2 includes video information received by the intercom slave unit 7.

  For example, the network processing unit 133 processes audio information, video information, and the like received from the interphone slave unit 7 to generate network information. The network information generated by the network processing unit 133 is output from the second communication unit 12 as a network signal A3.

  The detection unit 134 detects the state of the repeater 4. Specifically, the detection unit 134 detects whether or not the connection state between the repeater 4 and the second communication unit 12 is normal. For example, when an abnormality occurs in the repeater 4 due to the failure of the repeater 4, the second communication unit 12 communicates with the second secondary master unit 3, the mobile terminal 6, and the external network N <b> 1 via the repeater 4. Communication is not possible. In this case, the detection unit 134 detects that the state of the repeater 4 is abnormal.

  The switching unit 135 sets the transmission source of the audio signal A1 and the video signal A2 to the second sub-master device 3 (connected device 10) according to the detection result of the detection unit 134, and the first communication unit 11 and the second communication unit 12. Switch to one of the following. In the present embodiment, at the normal time (that is, when the connection state between the second communication unit 12 and the repeater 4 is normal), the transmission source of the audio signal A1 and the video signal A2 to the second sub-master 3 is This is the second communication unit 12. When the detection unit 134 detects that the state of the repeater 4 is abnormal (that is, the second communication unit 12 is indirectly abnormal), the switching unit 135 detects the second sub-master unit 3. The transmission source of the audio signal A1 is switched from the second communication unit 12 to the first communication unit 11. In other words, when the transmission source of the audio signal A1 to the connection device 10 is the second communication unit 12, the switching unit 135 transmits the audio signal A1 to the connection device 10 when an abnormality occurs in the second communication unit 12. Is switched from the second communication unit 12 to the first communication unit 11.

  The first communication I / F 141 and the second communication I / F 142 are configured to receive audio information and video information from the lobby intercom B1 and the door phone sub unit B2, respectively, and output the received audio information and video information to the control unit 13. Has been. The voice information is information such as a voice of a visitor collected by a microphone attached to the lobby interphone B1 (door phone slave unit B2), for example. The video information is information such as a video of a visitor captured by an imaging camera attached to the lobby interphone B1 (door phone slave unit B2), for example. The third communication I / F 143 is configured to receive the notification information from the notification device B3 and output the received notification information to the control unit 13.

  The reproduction unit 15 is a speaker, for example, and reproduces the audio information processed by the audio processing unit 131. Therefore, the resident can hear the voice of the visitor from the playback unit 15.

  The display unit 16 is, for example, a liquid crystal display (LCD) module, and displays the video information processed by the video processing unit 132. Therefore, the resident can see the video of the visitor on the display unit 16.

  The first sub-master 2 is a device having a call function with the interphone slave 7 via the interphone master 1. The first sub-master device 2 includes a communication unit 21, a control unit 22, and a playback unit 23. The communication unit 21 is an analog communication module for communicating with the intercom base unit 1 via the first path P1. The communication unit 21 can receive the audio signal A1 and the notification signal A4 transmitted from the first communication unit 11 of the intercom base unit 1. The control unit 22 has a function of controlling the communication unit 21 and the reproduction unit 23. The reproduction unit 23 is, for example, a speaker, and reproduces audio information included in the audio signal A1.

  The second secondary master unit 3 has a call function with the interphone slave unit 7 via the interphone master unit 1 and a display function for displaying an image transmitted from the interphone slave unit 7 via the interphone master unit 1. Equipment. The second sub-master device 3 includes a first communication unit 31, a second communication unit 32, a control unit 33, a playback unit 34, and a display unit 35.

  The first communication unit 31 is an analog communication module for communicating with the intercom base unit 1 via the first path P1. The first communication unit 31 can receive the notification signal A4 transmitted from the first communication unit 11 of the intercom base unit 1. The second communication unit 32 is a digital communication module for communicating with the intercom base unit 1 via the second path P2. The second communication unit 32 can receive the audio signal A1 and the video signal A2 transmitted from the second communication unit 12 of the intercom base unit 1.

  The control unit 33 has a function of controlling the first communication unit 31, the second communication unit 32, the reproduction unit 34, and the display unit 35. The reproduction unit 34 is, for example, a speaker, and reproduces audio information included in the audio signal A1. The display unit 35 is a liquid crystal display module, for example, and mainly displays video information included in the video signal A2.

(3) Operation Hereinafter, an example of the operation of the intercom base unit 1 according to the present embodiment will be described with reference to FIGS. 2A to 3. Hereinafter, communication between the intercom base unit 1 and the second sub base unit 3 will be described. Further, in the following description, it is assumed that the state of the repeater 4 is normal as shown in FIG. 2A when the intercom base unit 1 starts communication with the second sub base unit 3.

  As shown in FIG. 3, first, the intercom base unit 1 transmits the audio signal A1, the video signal A2, and the network signal A3 through the second communication unit 12 during a call, for example (step S1). In this case, the audio signal A1 and the video signal A2 are transmitted to the second secondary master unit 3 and the portable terminal 6 via the communication cable C2 and the repeater 4 (see FIG. 2A). The network signal A3 is transmitted to the server 5 via the communication cable C2, the repeater 4, and the external network N1 (see FIG. 2A).

  Here, it is assumed that the detection unit 134 detects the state of the repeater 4 (step S2). The detection of the state of the repeater 4 by the detection unit 134 is performed constantly or periodically. If the state of the repeater 4 is normal (step S3: No), the intercom base unit 1 continues to transmit the audio signal A1, the video signal A2, and the network signal A3 through the second communication unit 12 (step S1).

  On the other hand, if the state of the repeater 4 is abnormal (step S3: Yes), the switching unit 135 sends the transmission source of the audio signal A1 to the second sub-master unit 3 (connected device 10) from the second communication unit 12. Switch to the first communication unit 11 (step S4). Thereafter, the intercom base unit 1 transmits the audio signal A1 through the first communication unit 11 (step S5). In this case, the audio signal A1 is transmitted to the second secondary master unit 3 via the communication cable C1 (see FIG. 2B). In addition, when the state of the repeater 4 is abnormal, a signal cannot be transmitted to the second secondary master unit 3, the portable terminal 6, and the external network N1 via the communication cable C2 and the repeater 4 (see FIG. 2B). ). For this reason, the video signal A <b> 2 is not transmitted from the intercom base unit 1 to the second sub base unit 3 and the mobile terminal 6. Further, the network signal A3 is not transmitted from the intercom base unit 1 to the external network N1.

  Thereafter, it is assumed that the detection unit 134 detects the state of the repeater 4 (step S6). If the state of the repeater 4 is abnormal (step S7: Yes), the intercom base unit 1 continues to transmit the audio signal A1 through the first communication unit 11 (step S5). On the other hand, when the state of the repeater 4 returns to normal (step S7: No), the switching unit 135 transmits the transmission source of the audio signal A1 to the second secondary master unit 3 (connected device 10) from the first communication unit 11. Switch to the second communication unit 12 (step S8). Thereafter, the intercom base unit 1 transmits the audio signal A1, the video signal A2, and the network signal A3 through the second communication unit 12 (step S1).

  Here, as a comparative example of the intercom system 100 of the present embodiment, an intercom system 201 of a first comparative example will be described with reference to FIG. 4A. The intercom system 201 of the first comparative example has the same basic configuration as the intercom system 100 of the present embodiment except for the following three points. First, in the intercom system 201 of the first comparative example, the interphone master device 200 does not have the switching unit 135. Secondly, in the intercom system 201 of the first comparative example, the communication cable C <b> 2 is wired only between the intercom base unit 200 and the repeater 4. Thirdly, in the intercom system 201 of the first comparative example, the transmission paths of the audio signal A1 and the video signal A2 are between the interphone base unit 200 and the first sub base unit 2, and between the first sub base unit 2 and the first sub base unit 2. 2 is a communication cable C3 wired to each of the two secondary master units 3.

  The intercom system 201 of the first comparative example has a communication function with the external network N1 using the repeater 4 as a new communication function. However, in the intercom system 201 of the first comparative example, three communication cables C1 to C3 are required, and the number of wires is smaller than that of the intercom system 100 of the present embodiment using the two communication cables C1 and C2. It has increased.

  Next, as another comparative example of the intercom system 100 of the present embodiment, an intercom system 202 of a second comparative example will be described with reference to FIG. 4B. The intercom system 202 of the second comparative example has the same basic configuration as the intercom system 100 of this embodiment except for the following two points. First, in the intercom system 202 of the second comparative example, the intercom base unit 200 does not have the switching unit 135. Secondly, in the intercom system 202 of the second comparative example, communication cables are connected between the repeater 4 and the first sub-master device 2 and between the first sub-master device 2 and the second sub-master device 3, respectively. C2 is wired.

  The intercom system 202 of the second comparative example has a communication function with the external network N1 using the repeater 4 as a new communication function. However, in the intercom system 202 of the second comparative example, it is necessary to add an interface for connecting the communication cable C2 to the first secondary master unit 2. Further, in the intercom system 202 of the second comparative example, when an abnormality occurs in the repeater 4, the interphone base unit 1 transmits the audio signal A1 to the first sub-base unit 2 and the second sub-base unit 3. Will not be able to secure the call function.

  In addition, a dedicated adapter for connecting to the external network N1 is arranged between the interphone master unit 1 and the repeater 4, and each between the interphone master unit 1 and the adapter and between the adapter and the repeater 4 A configuration in which the communication cable C2 is routed is also conceivable. In this configuration, a communication function with the external network N1 using the repeater 4 can be realized as a new communication function, but there is a problem that it takes a cost to develop an adapter.

  On the other hand, in this embodiment, a new communication function is realized using only the communication cables C1 and C2. For this reason, in the present embodiment, unlike the first comparative example, it is not necessary to add a communication cable, so that an increase in the number of wires can be suppressed. In the present embodiment, the transmission path of the audio signal A1 can be switched by the switching unit 135 when an abnormality occurs in the repeater 4. For this reason, in the present embodiment, unlike the second comparative example, it is possible to ensure a call function even when an abnormality occurs in the repeater 4. That is, the present embodiment has an advantage that it is easy to provide function expandability while suppressing an increase in the number of wirings. Furthermore, in this embodiment, there is also an advantage that a call function can be ensured even when an abnormality occurs in the repeater 4. As described above, in the present embodiment, the versatility (here, the communication function with the external network N1), the exclusiveness (here, the call function), and the workability (here, the suppression of the increase in the number of wirings) are performed. There is an advantage that it is easy to realize the point.

(4) Modification The above embodiment is merely one of various embodiments of the present disclosure. The above embodiment can be variously modified according to the design and the like as long as the object of the present disclosure can be achieved. Moreover, the function equivalent to the intercom base unit 1 may be embodied by a computer program or a recording medium on which the program is recorded.

  The program according to the embodiment is a program for controlling the intercom base unit 1. The intercom base unit 1 includes a first communication unit 11 and a second communication unit 12. The 1st communication part 11 can transmit audio | voice signal A1 containing the audio | voice information received from the intercom subunit | mobile_unit 7 to the connection apparatus 10 via the 1st path | route P1. The second communication unit 12 can transmit the audio signal A1 to the connection device 10 via the second path P2 different from the first path P1. This program is a program for causing a computer system to realize a switching function. The switching function is a function of switching the transmission source of the audio signal A1 for the connection device 10 to either the first communication unit 11, the second communication unit 12, or both the first communication unit 11 and the second communication unit 12. .

  Hereinafter, modifications of the embodiment will be listed. The modifications described below can be applied in appropriate combinations.

(4.1) First Modification The interphone base unit 1 according to the first modification is that the control unit 13 further includes a selection unit 136 as shown in FIG. Is different. The selection unit 136 is configured to select one or more pieces of information from a plurality of pieces of information including audio information. In the present modification, the selection unit 136 automatically selects one or more pieces of information according to a device that is directly or indirectly connected to the intercom base unit 1. In this modification, the devices directly or indirectly connected to the interphone master unit 1 are the first sub-master unit 2, the second sub-master unit 3, the repeater 4, the server 5, and the portable terminal 6. At least one of them. In the present modification, the first communication unit 11 and the second communication unit 12 are configured to transmit a signal including one or more pieces of information selected by the selection unit 136.

  Hereinafter, an example of the operation of this modification will be described. When the server 5 is connected to the repeater 4 via the external network N1 and the portable terminal 6 is not connected to the repeater 4, the selection unit 136 uses network information as information to be transmitted from the second communication unit 12. select. In this case, the second communication unit 12 transmits a network signal A3 to the external network N1. Here, when the portable terminal 6 is connected to the repeater 4, the selection unit 136 selects not only network information but also audio information and video information as information transmitted from the second communication unit 12. Then, the second communication unit 12 transmits the network signal A3 to the external network N1, and transmits the audio signal A1 and the video signal A2 to the mobile terminal 6.

  Hereinafter, another example of the operation of this modification will be described. When the second sub-master device 3 is connected to the interphone master device 1 but the first sub-master device 2 is not connected, the selection unit 136 uses the notification information as information to be transmitted from the first communication unit 11. select. In this case, the first communication unit 11 transmits a notification signal A4 to the second sub-master unit 3. Here, when the first sub-master 2 is connected to the interphone master 1, the selection unit 136 selects not only the notification information but also the voice information as information transmitted from the first communication unit 11. Then, the first communication unit 11 transmits a notification signal A4 to the second sub-master unit 3, and transmits an audio signal A1 and a notification signal A4 to the first sub-master unit 2.

  As described above, in the present modification, the information transmitted by the first communication unit 11 and the second communication unit 12 is selected according to a device that is directly or indirectly connected to the interphone master unit 1. For this reason, in this modification, it is possible to transmit information to the connected device without newly adding a wiring corresponding to the connected device.

  In this modification, the selection unit 136 may include a selector switch that accepts a user operation, and may be configured to manually select one or more pieces of information by the user operation. In this case, the user may select one or more pieces of information corresponding to the connected device by the selection unit 136 when the device is directly or indirectly connected to the intercom base unit 1.

(4.2) Second Modification The intercom base unit 1 according to the second modification is the interphone base unit 1 of the embodiment in that the control unit 13 further includes a presentation unit 137 as shown in FIG. 5B. Is different. The presentation unit 137 is configured to present the state of the repeater 4 detected by the detection unit 134. In this modification, the presentation unit 137 displays a warning message, a warning image, or the like notifying that the abnormality has occurred in the relay device 4 when the detection unit 134 detects that the state of the relay device 4 is abnormal. To display. Thus, in this modification, the user can know the state of the repeater 4.

  In the present modification, the presentation unit 137 may cause the reproduction unit 15 to reproduce a warning voice message, a warning sound, or the like. In addition, the presentation unit 137 may always display the state of the repeater 4 on the display unit 16. In this case, while the state of the repeater 4 is normal, the presentation unit 137 causes the display unit 16 to display an icon or the like indicating that the repeater 4 is normal. When the detection unit 134 detects that the state of the repeater 4 is abnormal, the presentation unit 137 displays a warning message or the like on the display unit 16 or causes the reproduction unit 15 to reproduce a warning voice message or the like. To do.

(4.3) Other Modifications Modifications other than the above are listed below. The modifications described below can be applied in appropriate combinations.

  The execution subject of the intercom base unit 1 or the intercom system 100 in the present disclosure includes a computer system. The computer system mainly includes a processor and a memory as hardware. When the processor executes the program recorded in the memory of the computer system, the function as the execution subject of the interphone master unit 1 or the interphone system 100 according to the present disclosure is realized. The program may be recorded in advance in the memory of the computer system, but may be provided through an electric communication line, or may be recorded in a recording medium such as a memory card, an optical disk, or a hard disk drive that can be read by the computer system. May be provided. A processor of a computer system includes one or more electronic circuits including a semiconductor integrated circuit (IC) or a large scale integrated circuit (LSI). The plurality of electronic circuits may be integrated on one chip, or may be distributed on the plurality of chips. The plurality of chips may be integrated into one device, or may be distributed and provided in a plurality of devices.

  In the present embodiment, the switching unit 135 is configured to automatically switch the transmission source of the audio signal A1 to the connected device 10, but the present invention is not limited to this. For example, the switching unit 135 may include a selector switch that receives an operation by the user. In this configuration, the switching unit 135 can switch the transmission source of the audio signal A1 to the connected device 10 in response to an operation by the user, that is, manually.

  In the present embodiment, the control unit 13 of the intercom base unit 1 includes the detection unit 134, but the present invention is not limited to this. For example, the control unit 13 may not include the detection unit 134. In this configuration, the user can check the state of the repeater 4 and, if there is an abnormality in the repeater 4, operate the switching unit 135 to switch the transmission source of the audio signal A1 for the connected device 10. . That is, in this configuration, the switching unit 135 preferably includes the selector switch described above.

  In the present embodiment, when an abnormality occurs in the repeater 4, the user may connect the interphone master unit 1 and the second sub-master unit 3 with the communication cable C2 without using the repeater 4 (see FIG. 6). That is, when the repeater 4 is connected between the second communication unit 12 and the connection device 10 (second sub-master unit 3), the second communication unit 12 has an abnormality in the repeater 4. The connection device 10 may be connectable without using the repeater 4. In addition, the communication cable C2 is wired between the intercom base unit 1 and the second sub-base unit 3 via the repeater 4, and the interphone base unit 1 and the second sub-base unit are directly connected without using the repeater 4. Further, the communication cable C <b> 2 may be connected to the machine 3. In this case, it is preferable that the switching unit 135 is configured to automatically switch to a communication path not via the repeater 4 when an abnormality occurs in the repeater 4.

  In the present embodiment, the first communication unit 11 is configured to be able to transmit the notification signal A4, but the present invention is not limited to this. For example, the first communication unit 11 may be configured not to transmit the notification signal A4 to the first sub-master device 2 and the second sub-master device 3. In this configuration, the notification device B3 and the third communication I / F 143 of the intercom master unit 1 are unnecessary.

  In the present embodiment, the second communication unit 12 is configured to be able to transmit both the video signal A2 and the network signal A3, but the present invention is not limited to this. For example, the second communication unit 12 may be configured to transmit only one of the video signal A2 and the network signal A3.

  In the present embodiment, the audio signal A1 and the notification signal A4 transmitted from the first communication unit 11 are analog signals, but may be digital signals. In the present embodiment, the audio signal A1 and the video signal A2 transmitted from the second communication unit 12 are digital signals, but may be analog signals.

  In the present embodiment, the communication method between the interphone master unit 1 and the first sub master unit 2 and between the interphone master unit 1 and the second sub master unit 3 is wired communication, but is wireless communication. Also good. In the present embodiment, the communication method between the intercom base unit 1 and the repeater 4 is wired communication, but may be wireless communication. In this case, the communication method between the repeater 4 and the second sub-master device 3 may be wired communication or wireless communication. Further, the communication method between the interphone master unit 1 and the first sub master unit 2 and between the interphone master unit 1 and the second sub master unit 3 is power line communication (PLC). Also good.

  The intercom system 100 of the present embodiment has a communication function with the external network N1 using the repeater 4, but may not have this communication function. In this configuration, the server 5 and the portable terminal 6 are unnecessary. Further, in this configuration, the communication cable C <b> 2 is routed between the intercom base unit 1 and the second sub base unit 3 without using the repeater 4.

  The intercom system 100 according to the present embodiment includes one first sub-master device 2 and one second sub-master device 3, but the present invention is not limited to this. For example, at least one of the first secondary master unit 2 and the second secondary master unit 3 may be a plurality.

Although the intercom system 100 of the present embodiment includes the interphone base unit 1, the first sub-base unit 2, and the second sub-base unit 3, the present invention is not limited to this. For example, the intercom system 100 may include only the interphone master unit 1. Further, for example, the interphone system 100 may include only one of the first sub-master 2 and the second sub-master 3 in addition to the interphone master 1. Moreover, although the intercom system 100 of this embodiment is provided with the lobby intercom B1 and the door phone sub unit B2 as the intercom slave unit 7, it does not have to be provided with either one or both. Good. _
The intercom system 100 of the present embodiment is an intercom system for collective housing, but is not limited to this. For example, the intercom system 100 may be an intercom system for a detached house. In this case, the lobby intercom B1 is not necessary as the intercom handset 7.

(Summary)
As described above, the intercom base unit (1) according to the first aspect includes the first communication unit (11), the second communication unit (12), and the switching unit (135). The first communication unit (11) can transmit an audio signal (A1) including audio information received from the intercom handset (7) to the connected device (10) via the first path (P1). The second communication unit (12) can transmit the audio signal (A1) to the connection device (10) via the second path (P2) different from the first path (P1). The switching unit (135) sets the transmission source of the audio signal (A1) to the connection device (10) as the first communication unit (11), the second communication unit (12), or the first communication unit (11) and the second communication unit. Switch to either of the communication units (12).

  According to this aspect, there is an advantage that it is easy to provide function expandability while suppressing an increase in the number of wires.

  In the intercom base unit (1) according to the second aspect, in the first aspect, the first communication unit (11) includes a notification signal including notification information received from the notification device (B3) that notifies the occurrence of a specific event. (A4) can be further transmitted.

  According to this aspect, there is an advantage that the user can know the occurrence of a specific event by confirming the device that has received the notification signal (A4).

  In the intercom base unit (1) according to the third aspect, in the first or second aspect, the second communication unit (12) further transmits at least one of the video signal (A2) and the network signal (A3). Is possible. The video signal (A2) is a signal including video information received from the interphone slave unit (7). The network signal (A3) is a signal including network information to be sent to the external network (N1).

  According to this aspect, when the second communication unit (12) can transmit the video signal (A2), the user can check the video of the visitor with the device that has received the video signal (A2). There is an advantage that. Moreover, according to this aspect, when the 2nd communication part (12) can transmit a network signal (A3), there exists an advantage that it becomes possible to transmit information with respect to an external network (N1).

  The intercom base unit (1) according to the fourth aspect further includes a selection unit (136) in any one of the first to third aspects. The selection unit (136) selects one or more pieces of information from a plurality of pieces of information including audio information. At least one of the first communication unit (11) and the second communication unit (12) transmits a signal including one or more pieces of information selected by the selection unit (136).

  According to this aspect, information that can be transmitted by the first communication unit (11) or the second communication unit (12) is selected according to a device that is directly or indirectly connected to the interphone master unit (1). It is possible. Therefore, according to this aspect, it is possible to transmit information without newly adding a wiring corresponding to a device connected to the intercom base unit (1).

  In the intercom base unit (1) according to the fifth aspect, in any of the first to fourth aspects, the switching unit (135) is configured such that the transmission source of the audio signal (A1) to the connected device (10) is the second. In the case of the communication unit (12), it is configured to operate as follows. That is, when an abnormality occurs in the second communication unit (12), the switching unit (135) changes the transmission source of the audio signal (A1) for the connected device (10) from the second communication unit (12) to the first communication unit (12). Switch to 11).

  According to this aspect, even when an abnormality occurs in the second communication unit (12), the audio signal (A1) can be transmitted from the first communication unit (11). Therefore, according to this aspect, there is an advantage that it is easy to ensure the callability between the connected device (10) that receives the audio signal (A1) and the interphone slave unit (7).

  In the intercom base unit (1) according to the sixth aspect, in any one of the first to fifth aspects, the second communication unit (12) is configured as follows. That is, in the second communication unit (12), when the repeater (4) is connected between the second communication unit (12) and the connected device (10), an abnormality occurs in the repeater (4). Then, it is connectable with a connection apparatus (10) without going through a repeater (4).

  According to this aspect, even when an abnormality occurs in the repeater (4), the audio signal (A1) can be transmitted from the second communication unit (12) to the connected device (10). Therefore, according to this aspect, there is an advantage that it is easy to ensure the callability between the connection device (10) and the interphone slave unit (7).

  The intercom base unit (1) according to the seventh aspect further includes a detection unit (134) and a presentation unit (137) in any one of the first to sixth aspects. The detection unit (134) detects the state of the repeater (4) connected between the second communication unit (12) and the connection device (10). The presentation unit (137) presents the state of the repeater (4) detected by the detection unit (134).

  According to this aspect, there is an advantage that the user can grasp the state of the repeater (4) by confirming the information presented from the presentation unit (137).

  The intercom system (100) according to the eighth aspect includes the interphone master unit (1) of any one of the first to seventh aspects, the first sub master unit (2), and the second sub master unit (3). And at least one. The first secondary master unit (2) can communicate with the first communication unit (11). The second secondary master (3) is a connection device (10) and can communicate with both the first communication unit (11) and the second communication unit (12).

  According to this aspect, there is an advantage that it is easy to provide function expandability while suppressing an increase in the number of wires.

  The intercom system (100) according to the ninth aspect further includes an interphone slave unit (7) capable of communicating with the intercom base unit (1) in the eighth mode.

  According to this aspect, there is an advantage that it is easy to provide function expandability while suppressing an increase in the number of wires.

  The connection device (10) according to the tenth aspect is configured to receive an audio signal (A1) from the intercom base unit (1) according to any one of the first to seventh aspects.

  According to this aspect, there is an advantage that it is easy to provide function expandability while suppressing an increase in the number of wires.

  The program according to the eleventh aspect is a program for controlling the intercom base unit (1). The intercom base unit (1) includes a first communication unit (11) and a second communication unit (12). The first communication unit (11) can transmit an audio signal (A1) including audio information received from the intercom handset (7) to the connected device (10) via the first path (P1). The second communication unit (12) can transmit the audio signal (A1) to the connection device (10) via the second path (P2) different from the first path (P1). This program is a program for causing a computer system to realize a switching function. The switching function sets the transmission source of the audio signal (A1) to the connected device (10) as the first communication unit (11), the second communication unit (12), or the first communication unit (11) and the second communication unit ( This is a function for switching to either of 12).

  According to this aspect, there is an advantage that it is easy to provide function expandability while suppressing an increase in the number of wires.

  The various configurations (including modifications) of the interphone master unit (1) according to the embodiment are not limited to the above-described embodiments, and can be embodied by a (computer) program or a non-temporary recording medium on which the program is recorded. .

  About the structure which concerns on the 2nd-7th aspect, it is not a structure essential to an intercom main unit (1), and can be abbreviate | omitted suitably.

DESCRIPTION OF SYMBOLS 100 Intercom system 1 Intercom master 10 Connection apparatus 11 1st communication part 12 2nd communication part 134 Detection part 135 Switching part 136 Selection part 137 Presentation part 2 1st submaster 3 2nd submaster 4 Repeater 7 Intercom child Machine A1 Audio signal A2 Video signal A3 Network signal A4 Notification signal B3 Notification device N1 External network P1 First route P2 Second route

Claims (11)

A first communication unit capable of transmitting an audio signal including audio information received from the interphone handset to the connected device via the first path;
A second communication unit capable of transmitting the audio signal to the connected device via a second path different from the first path;
A switching unit that switches the transmission source of the audio signal to the connected device to either the first communication unit, the second communication unit, or both the first communication unit and the second communication unit. Master machine. The intercom base unit according to claim 1, wherein the first communication unit can further transmit a notification signal including notification information received from a notification device that notifies the occurrence of a specific event. The intercom according to claim 1 or 2, wherein the second communication unit can further transmit at least one of a video signal including video information received from the interphone slave unit and a network signal including network information to be sent to an external network. Master machine. A selection unit that selects one or more pieces of information from a plurality of pieces of information including the voice information;
The interphone parent according to any one of claims 1 to 3, wherein at least one of the first communication unit and the second communication unit transmits a signal including the one or more information selected by the selection unit. Machine. When the transmission source of the audio signal for the connected device is the second communication unit and the abnormality occurs in the second communication unit, the switching unit sets the transmission source of the audio signal for the connected device to the first The intercom base unit according to any one of claims 1 to 4, wherein the communication unit is switched from a second communication unit to the first communication unit. When a repeater is connected between the second communication unit and the connection device, the second communication unit is connected to the connection device without going through the repeater when an abnormality occurs in the repeater. The intercom base unit according to any one of claims 1 to 5, wherein the intercom base unit is connectable. A detection unit for detecting a state of a repeater connected between the second communication unit and the connection device;
The intercom master unit according to any one of claims 1 to 6, further comprising: a presentation unit that presents the state of the repeater detected by the detection unit. The intercom base unit according to any one of claims 1 to 7,
At least one of a first sub-master device that can communicate with the first communication unit, and a second sub-master device that is the connected device and can communicate with both the first communication unit and the second communication unit; Intercom system equipped with. The intercom system according to claim 8, further comprising the intercom slave that can communicate with the interphone master. The connection apparatus which receives the said audio | voice signal from the intercom main unit of any one of Claims 1 thru | or 7. A first communication unit capable of transmitting an audio signal including audio information received from the interphone handset to the connected device via the first path;
A program for controlling an interphone master unit including a second communication unit capable of transmitting the audio signal to the connection device via a second path different from the first path;
Computer system,
For realizing a switching function for switching the transmission source of the audio signal to the connection device to either the first communication unit, the second communication unit, or both the first communication unit and the second communication unit. program.

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