JP6692073B2 - Repeater and intercom system - Google Patents

Description

  TECHNICAL FIELD The present invention generally relates to a repeater and an intercom system, and more particularly to a repeater and an intercom system for transmitting and receiving data between a master unit of an intercom system and an external device.

  In recent years, an adapter (repeater) that transmits and receives data between a base unit of an intercom system and a mobile terminal (external device) has been proposed (see Patent Document 1).

  By using the adapter described in Patent Document 1, it becomes possible to communicate between the base unit and the mobile terminal. By using the mobile terminal, the user of the intercom system recognizes who the customer is, even if he / she visits his / her house without going to the installation location of the master unit, and has a conversation. It can be performed.

JP, 2011-114703, A

  By the way, you can carry your mobile device anywhere. If the user always has it in the house, it is possible to deal with a sudden visitor, but the user does not always have to keep his / her skin and have a mobile terminal. In addition, the location of the mobile terminal is not fixed as compared with the stationary terminal. Therefore, when there is a sudden visitor and the user forgets where in the house the mobile terminal was placed, it is necessary to go to the installation location of the base unit to respond to the visitor, and the base unit using the adapter It cannot be said that the communication with the mobile terminal is effectively used.

  Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide a repeater and an intercom system that allow a user to effectively use communication between a master unit and an external device.

A repeater of the present invention includes a main body unit having a communication processing unit that transmits and receives data between a master unit used in an intercom system and an external device, a first communication unit that performs wired communication with the master unit, and A second communication unit that communicates with an external device and a holding unit that holds the external device are provided , and the external device performs call processing with the intercom system by activating an application stored in a memory. It is characterized by including at least one or more of an executable mobile phone, a tablet personal computer, and a notebook personal computer .

  The intercom system of the present invention is characterized by including the above-mentioned repeater and the above-mentioned base unit.

  According to the above configuration, the repeater and the intercom system can allow the user to effectively use the communication between the master unit and the external device.

It is a figure explaining the repeater in an embodiment. It is a figure explaining an example of the type of utilization of the repeater in an embodiment. It is a figure explaining the structure of the communication processing part in embodiment. FIG. 4A is a diagram illustrating the shape of the main body portion, and FIG. 4B is a diagram illustrating the shape of the holding portion. FIG. 5A is a perspective view illustrating a state in which the repeater holds an external device, and FIG. 5B is a side view illustrating a state in which the repeater holds an external device. It is a figure explaining the state where the component was attached to the main body part instead of the holding part. 6 is a flowchart illustrating an operation of the repeater in the embodiment, particularly an operation when transmitting an instruction signal. FIG. 8A is a diagram illustrating a state in which the holding unit according to the first modification is housed in the main body unit, and FIG. 8B is a diagram illustrating a state in which the holding unit according to the first modification is pulled out from the main body unit. FIG. 9A is a diagram illustrating a state in which the two first components of the holding unit according to the first modification are rotated, and FIG. 9B is a diagram illustrating a state in which the repeater holds an external device. FIG. 11 is a diagram illustrating a configuration of a communication processing unit in modification 2; 9 is a flowchart illustrating an operation of the repeater in modification 2, particularly an operation of communicating with an external device after transmitting a start signal.

1. Embodiment 1.1 Configuration The repeater of this embodiment is a device that receives data transmitted by a master device used in an intercom system and transmits the data to an external device. Here, the external device is a portable terminal device having a communication function such as a tablet terminal device.

  The repeater 10 is, for example, a mobile phone adapter, and includes a main body 20 and a holder 30 as shown in FIG.

  FIG. 2 is a diagram showing an intercom system using the repeater 10. The intercom system includes a repeater 10, a wireless device 11, a master device 40, an intercom slave device 41, and an external device 50.

  As shown in FIG. 2, the repeater 10 is connected to the master device 40 by a cable 61. The repeater 10 is connected to the wireless device 11 by a coaxial cable 62 of Ethernet (registered trademark) standard, for example.

  For example, when the intercom slave 41 notifies the master device 40 of the visitor via the cable 60, the master device 40 outputs the notification to the relay device 10 via the cable 61.

  Upon receiving the notice of the visitor, the repeater 10 outputs the notice to the wireless device 11 via the coaxial cable 62. The wireless device 11 is a device that wirelessly communicates with the external device 50, and when receiving the notification of the visitor from the relay device 10, transmits the notification to the external device 50 by wireless communication.

  When the external device 50 receives the notice of the visitor while the dedicated application software for communicating with the parent device 40 is being activated, the external device 50 notifies the user. After the notification, the external device 50 communicates with the parent device 40 by the operation of the user via the relay device 10 and the wireless device 11. Specifically, the external device 50 receives the user's voice and transmits the received voice to the master device 40 via the relay 10 and the wireless device 11. Upon receiving the voice transmitted from external device 50, master device 40 transmits the voice to intercom slave device 41 via cable 60. The intercom slave 41 outputs the sound transmitted by the master 40.

  When the voice of the visitor is input, the intercom slave unit 41 outputs the voice to the master unit 40 via the cable 60. Upon receiving the visitor's voice from the intercom slave 41, the parent device 40 transmits it to the external device 50 via the relay device 10 and the wireless device 11. The external device 50 outputs the voice of the visitor transmitted by the master device 40.

  As a result, the external device 50 enables communication with the intercom slave 41.

  When the intercom system is used in an apartment house, the intercom subunit 41 is an intercom installed in the lobby (lobby intercom) or a master unit installed in the management room (management room master unit). May be In this case, the external device 50 can communicate with the lobby intercom and the master room master unit.

  Hereinafter, each component of the repeater 10 (main body unit 20, holding unit 30) will be described.

(1) Main body 20
As shown in FIG. 1, the main body unit 20 includes a communication processing unit 21, a USB (universal serial bus) cable 22 (wired connection unit), a display unit 23, a detection unit 24, and an operation unit 25.

  The communication processing unit 21 is provided inside the main body unit 20 as shown in FIG. As shown in FIG. 3, the communication processing unit 21 includes a first communication unit 101, a second communication unit 102, and a control unit 103.

  The first communication unit 101 communicates with the parent device 40 via the cable 61. Specifically, the first communication unit 101 communicates with the parent device 40 by a communication method using a YUV signal (first communication method).

  The second communication unit 102 communicates with the wireless device 11 via the coaxial cable 62. Specifically, the second communication unit 102 uses a second communication method different from the first communication method (here, a communication method according to the Ethernet (registered trademark) standard) to externally communicate via the wireless device 11. It communicates with the device 50.

  The control unit 103 controls communication between the master device 40 and the external device 50. Specifically, control unit 103 performs protocol conversion between the network from intercom slave 41 to relay 10 and the network from relay 10 to external device 50. The control unit 103 stores the IP address of the external device 50. When the first communication unit 101 receives the data transmitted by the master device 40, the control unit 103 transfers the data to the wireless device 11 via the second communication unit 102 with the stored IP address as the destination. Further, when the control unit 103 receives data from the second communication unit 102, if the IP address of the transmission source of the data matches the stored IP address, the control unit 103 transmits the received data via the first communication unit 101. Transfer to base unit 40.

  The control unit 103 controls the display unit 23 to notify the user of the operating state of the main body unit 20.

  When the control unit 103 detects that the external device 50 is held by the detection unit 24, which will be described later, the control unit 103 sends an instruction signal for instructing the activation of the above-described dedicated application software to the external device 50 via the USB cable 22, which will be described later. Send. The dedicated application software is application software that performs processing equivalent to the processing such as communication, call, and image display performed by the master device 40 with the intercom slave device 41.

  The external device 50 is a computer including a processor and a memory. The memory is a computer-readable storage medium, and the dedicated application software is realized by the processor executing a program stored in the memory. For example, the external device 50 executes a program stored in the memory to receive a voice and transmit the voice to the intercom slave 41 via the repeater 10 and the master 40, or the intercom slave 41 receives the sound. It is possible to realize call processing such as outputting voice. As the external device 50, for example, a mobile phone, a tablet personal computer, a notebook personal computer, or the like can be used.

  The control unit 103 performs control according to an operation performed by the user using the operation unit 25.

  When one end of the USB cable 22 is connected to the connection port of the USB cable of the external device 50, the USB cable 22 supplies power from the power supply unit (not shown) to the external device 50. Further, the instruction signal output by the control unit 103 is output to the external device 50.

  The USB cable 22 may be attached so as not to be detachable from the main body 20 of the repeater 10. Alternatively, the main body unit 20 may be provided with a USB connector adapter, and the USB cable 22 having the USB connector may be detachable.

  The display unit 23 is, for example, an LED (Light Emitting Diode) lamp, and notifies the user of the operating state of the main body unit 20 by the lighting color of the LED lamp. For example, a red light indicates that communication is not possible, and a green light indicates that communication is possible.

  Note that a plurality of LED lamps may be provided as the display unit 23, and the operating state of the main body unit 20 may be notified to the user based on the difference in the LEDs that are turned on. Alternatively, a liquid crystal display, an organic EL display, or the like may be provided as the display unit 23, and the user may be notified of the operating state of the main body unit 20 based on the display content.

  The detection unit 24 is, for example, a reflection type proximity sensor, and detects whether or not the external device 50 is held by a holding unit 30 described below. Specifically, the detection unit 24 detects that the holding device 30 holds the external device 50 by projecting light and receiving reflected light.

  The operation unit 25 is, for example, a power switch, a setting button, an operation lever, a touch panel, or the like, and is covered by the holding unit 30 when the detachable holding unit 30 is attached to the main body unit 20.

  Here, the shape of the main body 20 will be described. As shown in FIGS. 1 and 4A, the body portion 20 is formed in an L-shaped three-dimensional shape. Specifically, the main body portion 20 is formed in a shape in which two rectangular parallelepiped shapes (first rectangular parallelepiped and second rectangular parallelepiped) having different lengths in the front-rear direction are combined. Here, the dimension of the first rectangular parallelepiped in the front-rear direction is longer than the dimension of the second rectangular parallelepiped in the front-rear direction, and forms the upper portion of the main body portion 20, and the second rectangular parallelepiped forms the lower portion of the main body portion 20.

  A step is formed by the lengths of the upper and lower portions of the main body portion 20 in the front-rear direction being different. A holding portion 30 described later is attached so as to face the surface 20a that is the entire surface of the second rectangular parallelepiped in which the step is formed.

(2) Holding unit 30
The holding portion 30 is a base on which the external device 50 is placed, and is attached so as to face the lower portion of the main body portion 20, specifically, the surface 20a on which a step is formed.

  The shape of the holding unit 30 will be described with reference to FIGS. 1 and 4B.

  In the holding portion 30, as shown in FIGS. 1 and 4B, a support wall 30b is provided in front of a rectangular parallelepiped surface 30a having a long side in the left-right direction, and a mounting wall 30c is provided in the rear thereof along the left-right direction. There is. Here, the vertical dimension of the support wall 30b is shorter than the vertical dimension of the mounting wall 30c. Thereby, when a load is applied to the holding portion 30, the load applied to the mounting wall 30c can be reduced. Further, in the holding portion 30, the support wall 30b and the mounting wall 30c are provided on the surface 30a, so that the groove portion 30d is formed along the left-right direction. Here, the support wall 30b is formed in a rectangular parallelepiped shape having a long side in the left-right direction, and is provided so that the external device 50 does not separate from the holding portion 30 when holding (supporting) the external device 50. Further, the mounting wall 30c is formed in a rectangular parallelepiped shape having a long side in the left-right direction, and is provided for mounting the holding section 30 to the main body section 20.

  The user can place the external device 50 on the surface 30a along the groove portion 30d formed in the holding portion 30.

  5A shows a state in which the external device 50 is held, and FIG. 5B is a side view in that state.

  The external device 50 is placed on the surface 30a along the groove 30d of the holding unit 30, as shown in FIGS. 5A and 5B. At this time, even if the external device 50 is placed on the surface 30a along the groove 30d, the holding unit 30 prevents the external device 50 from being separated from the holding unit 30 by the support wall 30b forming the groove 30d. Can be held (supported).

  The holding unit 30 can be attached to and detached from the main body unit 20 by sliding the holding unit 30 to the right or left by a slide rail (not shown) provided on the surface 20a of the main unit 20.

  When attaching the holding portion 30 to the main body portion 20, the user slides the attachment wall 30c of the holding portion 30 from the left end of the surface 20a to the right or from the right end of the surface 20a to the left. When the holding unit 30 is not used, that is, when the external device 50 is not held, a rectangular parallelepiped-shaped component 31 is mounted instead of the holding unit 30 (see FIG. 6).

1.2 Operation Here, the operation of the repeater 10, especially the operation when transmitting the instruction signal, will be described with reference to the flowchart shown in FIG. 7. When the external device 50 is held by the holding unit 30, it is assumed that the main body unit 20 and the external device are connected via the USB cable 22.

  The detection unit 24 detects whether the holding unit 30 holds the external device 50 (step S5).

  When the detection unit 24 detects that the holding unit 30 holds the external device 50 (“Yes” in step S5), the control unit 103 determines whether the value of the flag is 0 (step S10). ). Here, the flag represents the necessity of transmitting the instruction signal. When the flag value is 0, it means that the instruction signal needs to be transmitted, and when the flag value is 1, it means that the instruction signal need not be transmitted.

  When the control unit 103 determines that the flag value is not 0 (“No” in step S10), the process returns to step S5.

  When determining that the value of the flag is 0 (“Yes” in step S10), the control unit 103 transmits an instruction signal to the external device 50 via the USB cable 22 (step S15).

  After transmitting the instruction signal, the control unit 103 changes the value of the flag to 1 (step S20). Then, the process returns to step S5.

  When the detecting unit 24 detects that the holding unit 30 does not hold the external device 50 (“No” in step S5), the control unit 103 determines whether the value of the flag is 1 (step). S25).

  When determining that the value of the flag is 1 (“Yes” in step S25), the control unit 103 changes the value to 0 (step S30). A process will return to step S5, if step S30 is performed.

  When the control unit 103 determines that the flag value is not 1 (“No” in step S25), the process returns to step S5.

2. Modification 1
Here, a modified example of the holding unit 30 will be described with reference to FIGS. 8A, 8B, 9A and 9B. In the above description, the holding unit 30 is attachable to and detachable from the main body unit 20, but in the present modification, the holding unit 30 is housed in the main body unit 20.

  In this modification, the same components as those described above are designated by the same reference numerals, and description thereof will be omitted as appropriate.

  The holding unit 30 of the present modification example is composed of two first components 35 and one second component 36.

  Each first component 35 is connected to the lower end of the main body 20 by a spring (not shown). Each first component 35 is formed in an L shape, and is housed inside the main body portion 20 by the elastic force of the spring that works downward when not used (see FIGS. 8A and 8B).

  The second component 36 is formed in a rectangular parallelepiped shape and includes the display unit 23. The second component 36 is slidable in the front direction by a slide rail, and is housed in the lower end portion of the main body portion 20 when not used (see FIGS. 8A and 8B).

  When using the holding unit 30, the user pulls out the two first components 35 upward and the second component 36 forward (see FIG. 8B). Then, each first component 35 is rotated so that the tip end portion 30e of each first component 35 pulled out upward faces the front (see FIG. 9A).

  The external device 50 is mounted between the tip end portion 30e of each first component 35 and the second component 36 pulled out from the lower end portion of the main body portion 20. Then, since the elastic force of the spring acts in the downward direction, the external device 50 is held (supported) between the tip end portion 30e of each first component 35 and the second component 36 (see FIG. 9B).

  In the above embodiment, the display unit 23 is provided on the side surface of the main body unit 20, and in the present modification, the installation position of the display unit 23 provided in front of the second component 36 is limited to these positions. It is not something that will be done. The display unit 23 may be provided at a position visible to the user when the external device 50 is held in the holding unit 30. Here, the visible position is a position where the display unit 23 is not covered with the external device 50 when the holding unit 30 holds the external device 50.

  The number of the first components 35 is not limited to two, but may be one, or three or more.

3. Modification 2
Although the repeater 10 and the wireless device 11 are separate devices in the above, the repeater 10 having the function of the wireless device 11 will be described here.

  In this modification, the same components as those described above are designated by the same reference numerals, and description thereof will be omitted as appropriate.

  In this modification, the configuration of the communication processing unit 21, particularly the configuration of the second communication unit 102 is different from the above.

  The second communication unit 102 of this modification includes a wired communication unit 110 and a wireless communication unit 111, as shown in FIG.

  The wired communication unit 110 communicates with the external device 50 via the USB cable 22 when the external device 50 is connected to the main body unit 20 via the USB cable 22. The wireless communication unit 111 performs wireless communication with the external device 50 when the external device 50 is not connected to the main body unit 20 via the USB cable 22.

  In this modification, the second communication method described above corresponds to wireless communication and communication via the USB cable 22.

  The control unit 103 performs protocol conversion between the network from the intercom slave 41 to the relay 10 and the network from the relay 10 to the external device 50. When the external device 50 is connected to the main body unit 20 via the USB cable 22, the control unit 103 transmits / receives data between the master device 40 and the external device 50 via the wired communication unit 110. To do. When the external device 50 is not connected to the main body unit 20 via the USB cable 22, the control unit 103 transmits / receives data between the master device 40 and the external device 50 via the wireless communication unit 111. To do.

  Further, when transmitting data to the external device 50 via the wireless communication unit 111, the control unit 103 performs wireless communication so as to change the intensity of the signal to be transmitted according to the detection result of the detection unit 24. The unit 111 is controlled. Specifically, when the detection unit 24 detects that the holding unit 30 does not hold the external device 50, the wireless communication unit 111 is controlled so that the strength of the signal to be transmitted becomes the first level. When the detection unit 24 detects that the holding unit 30 holds the external device 50, the wireless communication unit 111 is controlled so that the intensity of the signal to be transmitted becomes the second level lower than the first level. .. In this case, it is possible to prevent the radio signal transmitted to the external device 50 from interfering with the communication of other devices.

  Next, the operation of the repeater 10 in this modification, particularly the operation of transmitting an instruction signal, will be described focusing on the changes from FIG. 7.

  In this modification, the operation of step S15 shown in FIG. 7 is different from the above. Specifically, when the main body 20 is connected to the external device 50 via the USB cable 22, the control unit 103 transmits an instruction signal to the external device 50 via the wired communication unit 110. When the main body 20 is not connected to the external device 50 via the USB cable 22, the control unit 103 transmits an instruction signal to the external device 50 via the wireless communication unit 111. Further, when transmitting the instruction signal wirelessly, the control unit 103 sets the signal strength of the instruction signal to the first level when the detection unit 24 detects that the holding unit 30 does not hold the external device 50. The wireless communication unit 111 is controlled so as to do so. When wirelessly transmitting the instruction signal, the control unit 103 sets the signal strength of the instruction signal to the second level when the detection unit 24 detects that the holding unit 30 holds the external device 50. Then, the wireless communication unit 111 is controlled.

  Next, the operation of the repeater 10 in the present modification, particularly the operation of communicating with the external device 50 after transmitting the activation signal will be described with reference to the flowchart shown in FIG.

  The detection unit 24 detects whether the holding unit 30 holds the external device 50 (step S100).

  When the detecting unit 24 detects that the holding unit 30 holds the external device 50 (“Yes” in step S100), the control unit 103 determines that the main body unit 20 is connected to the external device 50 via the USB cable 22. It is determined whether or not (step S105).

  When determining that the connection is made via the USB cable 22 (“Yes” in step S105), the control unit 103 communicates with the external device 50 via the wired communication unit 110 (step S110).

  When the detection unit 24 detects that the holding unit 30 does not hold the external device 50 (“No” in step S100), the control unit 103 causes the external device 50 to communicate with the first level signal strength. The wireless communication unit 111 is controlled (step S115).

  When it is determined that the connection is not made via the USB cable 22 (“No” in step S105), the control unit 103 causes the wireless communication unit 111 to communicate with the external device 50 at the second level signal strength. Is controlled (step S120).

4. Other Modifications The present invention has been described above based on the embodiment and each modification, but the present invention is not limited to the above-described embodiment. For example, the following modifications are possible.

  (1) In the above-described embodiment and each modification, the detection unit 24 is a reflection type proximity sensor, but is not limited to this.

  It may be a proximity sensor of another type such as an inductive proximity sensor or a capacitance proximity sensor.

  Alternatively, the detection unit 24 is not limited to the proximity sensor. For example, the detection unit 24 may be a mechanical switch. The detection unit 24 (mechanical switch) determines that the holding unit 30 holds the external device 50 when it is in the on state, and does not hold the external device 50 when it is in the off state. To judge.

  Alternatively, the detection unit 24 may determine whether or not the holding unit 30 holds the external device 50 by detecting whether or not the USB cable 22 is connected to the external device 50. In this case, when the detection unit 24 detects that the USB cable 22 is connected to the external device 50, the detection unit 24 determines that the holding unit 30 holds the external device 50. When detecting that the USB cable 22 is not connected to the external device 50, the detection unit 24 determines that the holding unit 30 does not hold the external device 50.

  (2) The USB cable 22 described in the above-described embodiment and each modification only needs to perform at least one of power supply to the external device 50 and communication with the external device 50 after activation of the dedicated application software.

  For example, in the second modification, when the USB cable 22 is only supplying power, the repeater 10 operates as follows. In step S100 of FIG. 11, when it is detected that the holding unit 30 holds the external device 50 (“Yes” in step S100), the control unit 103 communicates with the external device 50 at the second level signal strength. The wireless communication unit 111 is controlled to communicate (step S120).

  (3) The above embodiments and modifications may be combined.

5. Summary As described above, the repeater 10 holds the external device 50 and the main body unit 20 having the communication processing unit 21 that transmits and receives data between the master device 40 and the external device 50 used in the intercom system. And a holding unit 30.

  According to this configuration, the user holds the external device 50 on the repeater 10 so that the user does not forget where the external device 50 is placed in the house, and the external device 50 is used as if the external device 50 is being used. The device 50 can be used. Thereby, the repeater 10 can allow the user to effectively use the communication between the master unit and the external device.

  Here, the communication processing unit 21 communicates with the master device 40 using the first communication method, and with the external device 50 using the second communication method different from the first communication method. The second communication unit 102 is preferably included.

  According to this configuration, the relay device 10 allows the master device 40 and the external device to exchange data even if the communication protocol with the master device 40 and the communication protocol with the external device 50 are different. Can be sent and received.

  Here, the repeater 10 further includes a USB cable 22 (wired connection unit) that is wire-connected to the external device 50, and the main body unit 20 supplies power to the external device 50 and external device 50 via the USB cable 22. It is preferable to perform at least one of the communication with.

  According to this configuration, the repeater 10 can perform either one of power supply to the external device 50 and communication with the external device 50 via the USB cable 22. For example, when power is supplied, the external device 50 is used while receiving power.

  Here, it is preferable that the repeater 10 includes a display unit 23 that displays the operation state of the main body unit 20 at a position visible to the user while the external device 50 is held by the holding unit 30.

  With this configuration, in the repeater 10, the user can check the operating state of the main body unit 20 even when the holding unit 30 holds the external device 50.

  Here, it is preferable that the repeater 10 further includes a detection unit 24 that detects whether or not the external device 50 is held in the holding unit 30.

  According to this configuration, the repeater 10 detects whether or not the external device 50 is held by the detection unit 24, so that the external device 50 can be controlled according to the detection result.

  Here, when the detection unit 24 detects that the holding unit 30 holds the external device 50, the communication processing unit 21 transmits to the external device 50 an instruction signal for activating an application for communicating with the parent device 40. Preferably.

  According to this configuration, the repeater 10 transmits the activation signal to the external device 50 when the detection unit 24 detects that the holding unit 30 holds the external device 50. As a result, the external device activates the application. Therefore, when the external device 50 is held in the holding unit 30, the user sets the external device 50 to the parent device 40 without performing an operation related to the activation of the application. It can be used in the same way as.

  Here, the main body unit 20 further includes an operation unit 25, the holding unit 30 is attachable to and detachable from the main body unit 20, and when the holding unit 30 is attached to the main body unit 20, the operation unit 25 is the holding unit. It is preferably covered by 30.

  With this configuration, the repeater 10 can prevent the operating unit 25 from being operated by mistake when the holding unit 30 is attached to the main body unit 20.

  Here, when the external device 50 is not held by the holding unit 30, the holding unit 30 is preferably housed in the main body unit 20.

  With this configuration, the repeater 10 can retain the aesthetic appearance by housing the holding unit 30 in the main body unit 20.

  Further, the intercom system is characterized by including any one of the relays 10 and the master device 40.

  According to this configuration, the user holds the external device 50 on the repeater 10 so that the user does not forget where the external device 50 is placed in the house, and the external device 50 can be used as if using the master device 40. The device 50 can be used. Thereby, the intercom system can allow the user to effectively use the communication between the master unit and the external device.

10 Repeater 20 Main Unit 21 Communication Processing Unit 22 USB Cable (Wired Connection Unit)
23 display unit 24 detection unit 25 operation unit 30 holding unit 40 parent device 50 external device 101 first communication unit 102 second communication unit

Claims (3)

A main unit having a communication processing unit that transmits and receives data between a base unit used in the intercom system and an external device,
A first communication unit that performs wired communication with the base unit;
A second communication unit that communicates with the external device;
A holding unit for holding the external device ,
The external device includes at least one or more of a mobile phone, a tablet personal computer, and a notebook personal computer capable of executing a call process with the intercom system when an application stored in the memory is activated. A repeater characterized by that. The repeater according to claim 1, wherein the second communication unit performs wired communication with the external device. An intercom system comprising: the repeater according to claim 1 or 2; and the base unit.

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